CN115913466A

CN115913466A - Data transmission method and device

Info

Publication number: CN115913466A
Application number: CN202110990138.0A
Authority: CN
Inventors: 张伟; 徐日东; 施迅; 孙艳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2023-04-04
Also published as: WO2023024684A1

Abstract

The method determines parameters for transmitting data according to information for scheduling air interface resources through a first control entity, and then sends the parameters for transmitting the data to a first execution entity, the first execution entity performs redundant transmission on the data according to the parameters for transmitting the data, and a receiving party of the redundant transmission is a second execution entity. According to the method and the device for safe communication, when the air interface quality is poor and the service is damaged, the retransmission time delay can be reduced, and the success rate of redundant transmission is improved.

Description

Data transmission method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for data transmission.

Background

The fifth generation (5G) 5G system has a high requirement for Service Level Agreement (SLA) with deterministic delay for enterprise (tobusiness) industry scenarios. In fact, taking industrial sites such as industrial parks and ports as an example, due to the complex electromagnetic environment and the problem of poor air interface quality caused by multipath, shielding, burst interference, same frequency interference and the like, uplink and downlink data of the 5G terminal can randomly generate error codes, packet loss and the like, so that retransmission delay is generated, a network cannot stably meet the requirement of service delay, and service damage and even equipment halt can be caused in severe cases. When the quality of an air interface is poor and a service is damaged, how to reduce the time delay of retransmission is an urgent problem to be solved.

Disclosure of Invention

The application provides a data transmission method and device, which can reduce retransmission delay and improve the success rate of redundant transmission when the air interface quality is poor and the service is damaged.

In a first aspect, a method for data transmission is provided, including: the first control entity determines parameters for transmitting data according to the information for scheduling the air interface resources, wherein the parameters for transmitting data comprise a first quantity M; the first control entity transmits first information to a first execution entity, wherein the first information comprises first quintuple information corresponding to service data and a parameter for transmitting data, the first information is used for indicating the first execution entity to transmit first transmission data, the first transmission data comprises the service data and M copies of data, the M copies of data are obtained by copying the service data for M times, and M is a positive integer; the first control entity transmits second information to a second execution entity, wherein the second information is used for indicating the second execution entity to perform deduplication on second transmission data, the second information comprises second quintuple information corresponding to the first transmission data, the first transmission data comprises the second transmission data, and the second quintuple information comprises the first quintuple information.

According to the scheme, when the service is damaged due to poor air interface quality, the first control entity instructs the first execution entity to perform redundant transmission on the copied data and the original data together, so that the retransmission time delay is reduced; the first control entity determines the redundancy transmission parameters according to the air interface scheduling information, so that the original data and the copied data can be prevented from being packed into the same transmission block for transmission, the possibility of failure in simultaneous transmission of the original data and the copied data is reduced, the failure condition of a redundancy mechanism is reduced, and the success rate of redundancy transmission is improved; by realizing the redundant transmission from the fine granularity to the service flow (quintuple) level, the control precision during the redundant transmission is improved.

With reference to the first aspect, in some implementation manners of the first aspect, the information for scheduling air interface resources includes: the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a transmission interval of any one of the service data and the M pieces of duplicated data, or the information for scheduling air interface resources includes: the radio access network device for transmitting the first transmission data has a function of independently allocating a transport block to different qos flows, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of the data, the qos flow corresponding to the third quintuple information is different from the qos flow corresponding to the first quintuple information, wherein the second quintuple information further includes the third quintuple information, and the information for scheduling an air interface resource is received by the first control entity from the radio access network device, or the information for scheduling an air interface resource is preconfigured.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first control entity obtains an air interface quality index, wherein the air interface quality index comprises at least one of the following items: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate; the first control entity determines parameters for transmitting data according to the information for scheduling air interface resources, including: and the first control entity determines the parameter for transmitting the data according to the information for scheduling the air interface resource and the air interface quality index.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first control entity acquires third information of the damaged service caused by the fact that the air interface quality index meets a first condition at different time periods; the first control entity determines that the air interface quality index meets the time interval rule of service damage caused by a first condition according to the third information; the first control entity determines a transmission time interval according to the time interval rule, and the transmission time interval is used for instructing the first control entity to transmit the M copies of data only in the transmission time interval.

According to the scheme, the time-phased redundant transmission is realized by acquiring the rule that the air interface quality is damaged, namely, the redundant transmission is carried out in the time period that the air interface quality is damaged, the redundant transmission is not carried out in the time period that the air interface quality is better, and the occupation of air interface resources is reduced.

With reference to the first aspect, in certain implementations of the first aspect, the method for determining the quality of the air interface satisfies a first condition includes: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold, and the service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value.

With reference to the first aspect, in certain implementations of the first aspect, the parameter for transmitting data further includes the transmission period.

With reference to the first aspect, in some implementation manners of the first aspect, the acquiring, by the first control entity, third information that service is damaged due to the fact that an air interface quality indicator meets a first condition at different time periods includes: the first control entity receives the third information from the first detection entity at different time periods, wherein the third information is used for indicating that the air interface quality index meets the first condition, which results in the service being damaged.

In a second aspect, a method for data transmission is provided, including: a first execution entity receives first information from a first control entity, wherein the first information comprises first quintuple information and the parameter for transmitting data, the parameter for transmitting data comprises a first quantity M, and the parameter for transmitting data is determined according to information for scheduling air interface resources; the first execution entity sends the first transmission data to a second execution entity according to the first information, the first transmission data comprises the service data and M copies of the data, the service data is determined according to the first quintuple information, the M copies of the data are obtained by copying the service data M times, and M is a positive integer.

According to the scheme, when the air interface quality is poor and the service is damaged, the first execution entity performs redundant transmission on the copied data and the original data according to the indication of the first control entity, so that the retransmission time delay is reduced; according to the redundancy transmission parameters determined by the air interface scheduling information, the original data and the copied data can be prevented from being packed into the same transmission block for transmission, the possibility of failure of simultaneous transmission of the original data and the copied data is reduced, the condition of failure of a redundancy mechanism is reduced, and the success rate of redundancy transmission is improved; by realizing the redundant transmission from the fine granularity to the service flow (quintuple) level, the control precision during the redundant transmission is improved.

With reference to the second aspect, in some implementations of the second aspect, the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a transmission interval between the traffic data and the M copies of data, and the first executing entity transmits the first transmission data to the second executing entity according to the first information, including: the transceiver module is specifically configured to send any one of the following to the second entity at intervals: one of the business data and the M copies of data; or, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of the duplicated data, where a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information, and the transceiver module is specifically further configured to send the first transmission data to the second execution entity through different qos flows.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the parameter for transmitting data further includes a transmission period, and the first control entity transmits the M copies of data only within the transmission period according to the parameter for transmitting data.

In a third aspect, a method for data transmission is provided, including: the second execution entity receives second information from the first control entity, wherein the second information comprises second quintuple information, and the second quintuple information corresponds to the first transmission data; the second execution entity receiving second transmission data from the first execution entity; the second execution entity performs deduplication on the second transmission data according to the second information, the first transmission data includes the second transmission data, and the second transmission data is determined according to the second quintuple information.

With reference to the third aspect, in some implementations of the third aspect, the receiving, by the second execution entity, the second transmission data from the first execution entity includes: the second execution entity receiving third transmission data from the first execution entity; after an interval period, the second execution entity receiving fourth transmission data from the first execution entity, the second transmission data comprising the third transmission data and the fourth transmission data; or the second execution entity receives third transmission data and fourth transmission data from the first execution entity through different service quality flows, the third transmission data corresponds to the first quintuple information, the fourth transmission data corresponds to the third quintuple information, the second transmission data comprises the third transmission data and the fourth transmission data, and the second quintuple information comprises the first quintuple information and the third quintuple information.

With reference to the third aspect, in some implementations of the third aspect, the receiving, by the second execution entity, the second transmission data from the first execution entity includes: the second performing entity receives the second transmission data during a transmission period.

In a fourth aspect, a method for data transmission is provided, including: the first detection entity determines that the air interface quality index meets a first condition, and the air interface quality index meets the first condition, including: the reference signal receiving power is lower than a first threshold, or the reference signal receiving quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold; the first detection entity determines that the service is impaired, the service impairment comprising: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value; the first detection entity sends third information to the first control entity at different time periods, wherein the third information is used for indicating that the service is damaged as the air interface quality index meets the first condition.

In a fifth aspect, an apparatus for data transmission is provided, comprising: a processing module, configured to determine a parameter for transmitting data according to information used for scheduling air interface resources, where the parameter for transmitting data includes a first number M; a transceiver module, configured to transmit first information to a first execution entity, where the first information includes first quintuple information corresponding to service data and a parameter used for data transmission, the first information is used to instruct the first execution entity to transmit first transmission data, the first transmission data includes the service data and M copies of the service data, the M copies of the service data are obtained by copying the service data M times, and M is a positive integer; the transceiver module is further configured to transmit second information to a second execution entity, where the second information is used to instruct the second execution entity to perform deduplication on second transmission data, the second information includes second quintuple information corresponding to the first transmission data, the first transmission data includes the second transmission data, and the second quintuple information includes the first quintuple information.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the information for scheduling air interface resources includes: the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a transmission interval between the service data and any one of the M copies of data, or the information for scheduling air interface resources includes: the radio access network device for transmitting the first transmission data has a function of independently allocating a transport block to different qos flows, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of the data, the qos flow corresponding to the third quintuple information is different from the qos flow corresponding to the first quintuple information, wherein the second quintuple information further includes the third quintuple information, and the information for scheduling an air interface resource is received by the first control entity from the radio access network device, or the information for scheduling an air interface resource is preconfigured.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the processing module is further configured to obtain an air interface quality indicator, where the air interface quality indicator includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate; the processing module is further configured to determine a parameter for transmitting data according to the information for scheduling the air interface resource, and includes: the processing module is further configured to determine, by the first control entity, the parameter for transmitting data according to the information for scheduling the air interface resource and the air interface quality indicator.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the processing module is further configured to obtain third information that service is damaged due to that an air interface quality indicator meets a first condition at different time periods; the processing module is further configured to determine, according to the third information, a time interval rule that the air interface quality index meets a first condition and causes service damage; the processing module is further configured to determine a transmission period according to the period rule, where the transmission period is used to instruct the first control entity to transmit the M copies of data only in the transmission period.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the meeting the first condition by the air interface quality indicator includes: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold, and the service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the parameter for transmitting data further includes the transmission period.

With reference to the fifth aspect, in some implementations of the fifth aspect, the transceiver module is further configured to receive the third information from the first detection entity at different time periods, where the third information is used to indicate that the air interface quality indicator meeting the first condition results in the service being damaged.

In a sixth aspect, an apparatus for data transmission is provided, including: a transceiver module, configured to receive first information from a first control entity, where the first information includes first quintuple information and the parameter for data transmission, the parameter for data transmission includes a first number M, and the parameter for data transmission is determined according to information used to schedule air interface resources; the transceiver module is further configured to send the first transmission data to a second execution entity according to the first information, where the first transmission data includes the service data and M copies of the data, the service data is determined according to the first quintuple information, the M copies of the data are obtained by copying the service data M times, and M is a positive integer.

With reference to the sixth aspect, in some implementations of the sixth aspect, the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a transmission interval of the traffic data and the M copies of data, and the transceiver module is specifically configured to transmit, to the second enforcement entity, any one of the following every interval period: one of the business data and the M copies of data; or, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of data, where a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information, and the transceiver module is further specifically configured to send the first transmission data to the second execution entity through different qos flows.

With reference to the sixth aspect, in some implementations of the sixth aspect, the parameters for transmitting data further include a transmission period, and the transceiver module is further configured to transmit the M copies of data only in the transmission period according to the parameters for transmitting data.

In a seventh aspect, an apparatus for data transmission is provided, including: a transceiver module, configured to receive second information from the first control entity, where the second information includes second quintuple information, and the second quintuple information corresponds to the first transmission data; the second execution entity receiving second transmission data from the first execution entity; and the processing module is used for carrying out deduplication on the second transmission data according to the second information, wherein the first transmission data comprises the second transmission data, and the second transmission data is determined according to the second quintuple information.

With reference to the seventh aspect, in some implementations of the seventh aspect, the transceiver module is further configured to receive second transmission data from the first execution entity, and includes: the second execution entity receiving third transmission data from the first execution entity; after the interval period, the transceiver module is further configured to receive fourth transmission data from the first execution entity, where the second transmission data includes the third transmission data and the fourth transmission data; or, the transceiver module is further configured to receive third transmission data and fourth transmission data from the first execution entity through different qos flows, where the third transmission data corresponds to the first quintuple information, the fourth transmission data corresponds to the third quintuple information, the second transmission data includes the third transmission data and the fourth transmission data, and the second quintuple information includes the first quintuple information and the third quintuple information.

With reference to the seventh aspect, in some implementations of the seventh aspect, the transceiver module is specifically further configured to receive the second transmission data in a transmission time period.

In an eighth aspect, an apparatus for data transmission is provided, including: the processing module is used for determining that the air interface quality index meets a first condition, and the air interface quality index meets the first condition, and comprises: the reference signal receiving power is lower than a first threshold, or the reference signal receiving quality is lower than a second threshold, or the signal-to-interference-plus-noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold; the processing module is further configured to determine that the service is damaged, where the service damage includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value; and the transceiver module is configured to send third information to the first control entity at different time periods, where the third information is used to indicate that the service is damaged due to the air interface quality indicator meeting the first condition.

In a ninth aspect, a communication apparatus is provided, which includes: a processor and a memory; the memory for storing a computer program; the processor is configured to execute the computer program stored in the memory to enable the communication apparatus to perform the communication method according to any one of the first aspect to the fourth aspect.

A tenth aspect provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program runs on a computer, the computer is caused to execute the communication method according to any one of the first to fourth aspects.

In an eleventh aspect, a chip system is provided, which includes: a processor configured to call and run a computer program from a memory, so that the communication device in which the system-on-chip is installed performs the communication method according to any one of the first to fourth aspects.

Drawings

Fig. 1 is a diagram showing the current 5G network architecture.

Fig. 2 shows a schematic block diagram of a multiple access edge computing architecture.

Fig. 3 shows a schematic interaction diagram of a method 300 of data transmission provided herein.

Fig. 4 shows a schematic interaction diagram of a method 400 of data transmission provided herein.

Fig. 5 shows a schematic interaction diagram of a method 500 of data transmission provided herein.

Fig. 6 shows a schematic interaction diagram of a method 600 of data transmission provided herein.

Fig. 7 shows a schematic interaction diagram of a method 700 of data transmission provided herein.

Fig. 8 is a schematic block diagram illustrating an interval of upstream scheduling of original data and duplicated data.

Fig. 9 is a schematic block diagram of a communication device for secure communication according to an embodiment of the present application.

Fig. 10 is a schematic diagram of an apparatus 20 for secure communication according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme provided by the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (GSM) systems, code Division Multiple Access (CDMA) systems, wideband Code Division Multiple Access (WCDMA) systems, general Packet Radio Service (GPRS), long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), worldwide Interoperability for Microwave Access (WiMAX) communication systems, fifth generation (5 g) systems, or New Radio (NR) 3GPP systems, etc.

Generally, the conventional communication system supports a limited number of connections and is easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device to device (D2D) communication, machine to machine (M2M) communication, machine Type Communication (MTC), vehicle to anything (V2X) communication (also may be referred to as vehicle network communication), for example, vehicle to vehicle (V2V) communication (also may be referred to as vehicle to vehicle communication), vehicle to infrastructure (V2I) communication (also may be referred to as vehicle to infrastructure communication), vehicle to pedestrian to vehicle (V2P) communication (also may be referred to as vehicle to vehicle communication), and vehicle to network (N2N) communication.

Fig. 1 provides a network architecture, and the following describes each network element that may be involved in the network architecture separately with reference to fig. 1.

1. User Equipment (UE): and may be referred to as a terminal device, terminal, access terminal, subscriber unit, subscriber station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The UE may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN) for future evolution or a non-terrestrial network (NTN), and the like, and may also be an end device, a logic entity, a smart device, a terminal device such as a mobile phone, a smart terminal device, or a communication device such as a server, a gateway, a base station, a controller, and the like, or an internet of things device, such as an internet of things (IoT) device, such as a sensor, an electric meter, a water meter, and the like. But also an Unmanned Aerial Vehicle (UAV) with a communication function. The embodiments of the present application do not limit this.

2. Access Network (AN): the method provides a network access function for authorized users in a specific area, and can use transmission tunnels with different qualities according to the level of the users, the requirements of services and the like. The access network may be an access network employing different access technologies. There are two types of current radio access technologies: 3GPP access technologies (e.g., radio access technologies employed in 3G, 4G, or 5G systems) and non-third generation partnership project (non-3 GPP) access technologies. The 3GPP access technology refers to an access technology meeting 3GPP standard specifications, and an access network adopting the 3GPP access technology is referred to as a Radio Access Network (RAN), where an access network device in a 5G system is referred to as a next generation Base station (gNB). The non-3GPP access technology refers to an access technology that does not conform to the 3GPP standard specification, for example, an air interface technology represented by an Access Point (AP) in wifi.

An access network that implements an access network function based on a wireless communication technology may be referred to as a Radio Access Network (RAN). The radio access network can manage radio resources, provide access service for the terminal, and further complete the forwarding of control signals and user data between the terminal and the core network.

The radio access network may be, for example, a base station (NodeB), an evolved NodeB (eNB or eNodeB), a base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an AP in a WiFi system, and may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device.

3. Access and mobility management function (AMF) entity: the method is mainly used for mobility management, access management, and the like, and can be used for implementing functions other than session management in Mobility Management Entity (MME) functions, such as functions of lawful interception, or access authorization (or authentication), and the like.

4. Session Management Function (SMF) entity: the method is mainly used for session management, internet Protocol (IP) address allocation and management of the UE, selection of a termination point capable of managing a user plane function, policy control, or charging function interface, downlink data notification, and the like.

5. User Plane Function (UPF) entity: i.e. a data plane gateway. The method can be used for packet routing and forwarding, or quality of service (QoS) processing of user plane data, and the like. The user data can be accessed to a Data Network (DN) through the network element. In the embodiment of the present application, the function of the user plane gateway can be implemented.

6. Data Network (DN): for providing a network for transmitting data. Such as a network of carrier services, an Internet network, a third party's service network, etc.

7. Authentication service function (AUSF) entity: the method is mainly used for user authentication and the like.

8. Network open function (NEF) entity: for securely opening services and capabilities, etc. provided by the 3GPP network functions to the outside.

9. Network storage function (NF) retrieval function, NRF) entity: the system is used for storing the description information of the network function entity and the service provided by the network function entity, and supporting service discovery, network element entity discovery and the like.

10. Policy Control Function (PCF) entity: the unified policy framework is used for guiding network behaviors, providing policy rule information for control plane function network elements (such as AMF and SMF network elements) and the like.

11. Unified Data Management (UDM) entity: for handling subscriber identification, access authentication, registration, or mobility management, etc.

12. Application Function (AF) entity: the method is used for carrying out data routing influenced by application, accessing to a network open function network element, or carrying out strategy control by interacting with a strategy framework, and the like. For example, it may be a V2X application server, a V2X application enabling server, or a drone server (which may include a drone supervision server, or a drone application service server).

In the network architecture shown in fig. 1, the N1 interface is a reference point between the terminal and the AMF entity; the N2 interface is a reference point of the AN and AMF entities, and is used for sending non-access stratum (NAS) messages and the like; the N3 interface is a reference point between the (R) AN and the UPF entity and is used for transmitting data of a user plane and the like; the N4 interface is a reference point between the SMF entity and the UPF entity and is used for transmitting tunnel identification information, data cache indication information, downlink data notification information and other information of the N3 connection; the N6 interface is a reference point between the UPF entity and the DN, and is used for transmitting data of a user plane and the like.

It should be understood that the network architecture shown in fig. 1 may be applied to the embodiment of the present application, and moreover, a network architecture to which the embodiment of the present application is applied is not limited to this, and any network architecture capable of implementing the functions of the network elements described above is applied to the embodiment of the present application.

It should also be understood that the AMF entity, SMF entity, UPF entity, NEF entity, AUSF entity, NRF entity, PCF entity, UDM entity shown in fig. 1 may be understood as network elements in the core network for implementing different functions, e.g. may be combined into network slices as needed. The core network elements may be independent devices, or may be integrated in the same device to implement different functions, which is not limited in this application. It should be noted that the "network element" may also be referred to as an entity, a device, an apparatus, a module, or the like, and the application is not particularly limited.

It should also be understood that the above-mentioned names are only used for distinguishing different functions, and do not represent that these network elements are respectively independent physical devices, and the present application does not limit the specific form of the above-mentioned network elements, for example, the network elements may be integrated into the same physical device, or may be different physical devices. Furthermore, the above nomenclature is only used to distinguish between different functions, and should not be construed as limiting the application in any way, and this application does not exclude the possibility of other nomenclature being used in 5G networks and other networks in the future. For example, in a 6G network, some or all of the above network elements may follow the terminology in 5G, and may also adopt other names, etc. The description is unified here, and will not be described below.

It should also be understood that the name of the interface between each network element in fig. 1 is only an example, and the name of the interface in the specific implementation may be other names, which is not specifically limited in this application. In addition, the name of the transmitted message (or signaling) between the network elements is only an example, and the function of the message itself is not limited in any way.

Fig. 2 shows a schematic block diagram of a multiple access edge computing architecture. A multi-access edge computing (MEC) architecture includes an MEC system level (MEC system level) and an MEC host level (MEC host level). The MEC host layer includes an MEC host (MEC host), an MEC platform (MEC platform), an MEC service (MEC service), and an MEC application (MEC app). The MEC host includes a MEC platform, a virtual infrastructure (MEC infrastructure), and a MEC application. The MEC platform provides some basic functions for operating the MEC app, such as discovery, registration and access of the MEC Service, forwarding of data plane traffic and the like. The MEC Service provides a Service for the MEC Platform and the MEC app to use, for example, a radio network information Service (radio network information Service) in the MEC Service may provide air interface bearer information, PLMN information, and the like of the terminal.

The 5G industry-oriented (ToB) scene has high requirements on a Service Level Agreement (SLA) of delay certainty. In fact, the electromagnetic environment of industrial places such as industrial parks and ports is complex, the quality of an air interface is poor due to the problems of multipath, shielding, burst interference, same frequency interference and the like, and the uplink and downlink data of the 5G terminal randomly generates error code packet loss, so that retransmission delay is generated, a network cannot stably meet the service delay requirement, and the service is damaged or even equipment is shut down.

In the following, a port scenario is taken as an example to introduce that packet loss is caused by poor air interface quality, so that the generated retransmission delay cannot meet the requirement of service delay. The following two examples use a Programmable Logic Controller (PLC) and employ the Profinet communication protocol, with a latency requirement of 16ms@99.9%.

Example 1: remote control when an Automatic Guided Vehicle (AGV) fails: the operation center detects the AGV fault, the remote control AGV drives out for maintenance, and the AGV does not receive the control command and automatically stops after exceeding 3 periods.

Example 2: remote control of the tyre crane/rail crane: the operator controls the crane in real time in the operation center, and the crane does not receive a control command for emergency stop in more than 3 periods.

In actual port operation, because an air interface environment is affected by cell co-frequency interference, peripheral signal burst interference and the like, packet loss retransmission occurs, so that control instruction time delay of continuous multiple periods exceeds 16ms, and service requirements are not met.

Currently, in a user plane protocol stack defined by the NR standard, three layers of Media Access Control (MAC), radio Link Control (RLC) and Packet Data Convergence Protocol (PDCP) provide a retransmission function. The transport layer, such as the Transmission Control Protocol (TCP) protocol, also has a retransmission function. However, the MAC layer and the RLC layer retransmit the data after receiving the acknowledgement of the transmission failure, which takes a long time for retransmission. The PDCP duplication (duplication) function duplicates the data packets through the PDCP layer, and then sends out the two data packets through the two cells, and the PDCP layer of the receiving end performs deduplication processing after receiving the data packets. This can reduce the transmission delay, but this function requires two cells to perform, which is not applicable to a scenario with only one cell. When the transport layer performs retransmission, taking TCP as an example, it is also necessary to start retransmission after transmission failure is confirmed, which may cause a large time delay.

For convenience of describing the technical scheme of the present application, some terms referred to in the present application are explained below.

(1) The quality of the air interface is poor, which may be understood as that some indexes of the quality of the air interface are lower than a certain threshold or higher than a certain threshold. Specifically, the air interface quality index includes, but is not limited to, reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ), signal to interference plus noise ratio (SINR), initial transmission/retransmission error rate (ber), and the like. When the SINR is lower than a certain threshold or the error rate is higher than a certain threshold, the quality of the air interface may be considered poor.

(2) Air interface scheduling information: some information related to air interface scheduling, or related information for scheduling air interface resources, such as timeslot allocation, scheduling period, whether different QoS streams support independent allocation of transport blocks, and the like. Specifically, the slot allocation can be understood to mean the allocation of Uplink (UL) slots (slots) and Downlink (DL) slots. The scheduling period refers to the time interval of each prescheduling when the prescheduling is opened. Whether different QoS streams support independent allocation of transport blocks or not can be understood as that, if the base station does not support this capability, each time the allocation of transport blocks is calculated according to the scheduling period and the timeslot proportion, there is a time interval between each transport block, if the base station supports this capability, then the transport blocks can be allocated with QoS streams as objects, and different QoS streams can be allocated with transport blocks according to the scheduling period and the timeslot proportion independently, so that the original data packets and the duplicate data packets can be controlled to be transmitted by using different QoS streams during redundant transmission, and thus they are not packed into the same transport block.

(3) Service damage: it may be understood that data transmission between two network devices is damaged, or it may be understood that packet loss or delay increase occurs in a control flow or a service flow between two network devices.

(4) Redundant transmission: the redundant transmission may be performed in multiple ways, for example, the data packets may be repeatedly transmitted at certain time intervals in the time dimension, the redundant data packets may be controlled to be transmitted through different air interface resources (for example, transmitted through different 5 QI) in the space dimension, the original data packets may be redundantly encoded (for example, bat and FEC) in the encoding dimension and then transmitted, and redundancy in three dimensions may also be performed at the same time.

The method for data transmission provided by the present application is described below with reference to fig. 3 to 7.

The method 300 for data transmission according to the embodiment of the present application is described in detail below with reference to fig. 3. Fig. 3 (a) is a schematic interaction diagram of a method 300 for data transmission according to the present application.

S301, the first control entity determines, according to the information for scheduling air interface resources, parameters for transmitting data, where the parameters for transmitting data include a first number M, and the first number M is used to instruct the first execution entity to copy the service data M times to obtain M copies of data.

And the first control entity determines parameters for transmitting data according to the information for scheduling the air interface resources. See the description in S406 for details.

In a possible case, the information for scheduling air interface resources includes: the parameters for transmitting the data also comprise an interval period, and the interval period is used for indicating the sending intervals of the service data and the M copies of data.

See specifically "three" in S406 and "b) in the calculation method" in the method 400.

It should be understood that the first control entity may regulate the sending interval of the service data and the replicated data according to the information for regulating the air interface resource, so as to avoid that the service data and the replicated data are packed on the same transmission block at the same time, and reduce the situation that the original data and the replicated data are failed to be transmitted at the same time, which results in failure of the redundancy mechanism.

Or, in a possible case two, the information for scheduling the air interface resource includes: the radio access network device for transmitting the first transmission data has a function of independently allocating a transport block to different qos flows, the parameter for transmitting the data further includes third quintuple information corresponding to M copies of the data, the qos flow corresponding to the third quintuple information is different from the qos flow corresponding to the first quintuple information, wherein the second quintuple information further includes the third quintuple information, and the information for scheduling the air interface resource is received by the first control entity from the radio access network device, or the information for scheduling the air interface resource is preconfigured.

See specifically "three" in S406 and "a) in the calculation method" in the method 400.

It should be understood that the service data and the duplicated data correspond to different quintuple information, that is, the service data and the duplicated data can be transmitted by carrying different QoS streams, and the situation that the original data and the duplicated data fail to be transmitted simultaneously, which causes failure of a redundancy mechanism, can also be reduced.

Optionally, the first control entity obtains an air interface quality index, where the air interface quality index includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate; the determining, by the first control entity, the parameter for transmitting data according to the information for scheduling the air interface resource includes: and the first control entity determines parameters for transmitting data according to the information for scheduling the air interface resources and the air interface quality index.

Reference may be made specifically to the relevant description in S406.

S302, a first control entity transmits first information to a first execution entity, and correspondingly, the first execution entity receives the first information from the first control entity, where the first information includes first quintuple information corresponding to service data and a parameter used for transmitting data, the first information is used to instruct the first execution entity to transmit first transmission data, the first transmission data includes the service data and M copies of data, the M copies of data are obtained by copying the service data M times, and M is a positive integer.

It should be noted that the transmission referred to in this application may be implemented through signaling interaction, and may also be implemented through internal circuit transmission.

It should be appreciated that the first execution entity may transmit the traffic data according to the parameters for transmitting the data. Specifically, the first execution entity may identify the service data according to the first quintuple information, copy the service data M times according to the first number M to obtain M copies of the service data, and then send the service data and the M copies of the service data to the second execution entity.

S303, the first control entity transmits second information to the second execution entity, and accordingly, the second execution entity receives the second information from the first control entity, where the second information is used to instruct the second execution entity to perform deduplication on second transmission data, and the second information includes second quintuple information corresponding to the first transmission data, and the first transmission data includes the second transmission data, where the second quintuple information includes the first quintuple information.

It should be understood that, here, the first transmission data is data sent by the first execution entity to the second execution entity, the second transmission data is data actually received by the second execution entity, and during the actual transmission of the first transmission data, error packets and packet loss may randomly occur, so that transmission of a part of the data packets fails, where the first transmission data includes the second transmission data.

It should also be understood that the quintuple information sent by the first control entity to the second execution entity is quintuple information corresponding to the first transmission data, and since the first transmission data includes the second transmission data, the first quintuple information includes quintuple information corresponding to the second transmission data, so that the second execution entity can identify the second transmission data according to the second quintuple information.

It should also be understood that the first quintuple information is quintuple information of the service data, and the second quintuple information is quintuple information of the service data and quintuple information of the M copies of the data. The second quintuple information includes the first quintuple information, and it is understood that the second quintuple information may be the same as or different from the first quintuple information. Specifically, when the two are the same, the service data and the M copies of the duplicated data are mapped to the same quintuple, that is, 5QI is not distinguished when the original data and the duplicated data are transmitted; when the two are different, the service data and the M copies of the data are mapped to different quintuples, namely 5QI is distinguished when the original data and the copied data are transmitted.

S304, the first execution entity sends first transmission data to the second execution entity according to the first information, correspondingly, the second execution entity receives second transmission data from the first execution entity, the first transmission data comprises service data and M copies of data, the service data is determined according to the first quintuple information, the M copies of data are obtained by copying the service data M times, and M is a positive integer.

Wherein the relationship between the first transmission data and the second transmission data is as described above.

Optionally, the parameter for transmitting data in the first information may further include other contents besides the first number M, and a sending manner of the first execution entity when sending the first transmission data to the second execution entity according to the first information may also be different according to the first information.

In a first mode, the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a sending interval of the service data and the M copies of the data, and the first execution entity sends the first transmission data to the second execution entity according to the first information, where the method includes: the first execution entity sends the service data to the second execution entity; after the interval period, the first execution entity sends M copies of the copied data to the second execution entity; accordingly, the second execution entity receives third transmission data from the first execution entity; after an interval period, the second execution entity receives fourth transmission data from the first execution entity, the second transmission data including the third transmission data and the fourth transmission data.

The service data and the third transmission data may be the same, or the third transmission data may be included in the service data. The M copies of the duplicated data may be the same as the fourth transmission data, or the fourth transmission data may be included in the M copies of the duplicated data.

In a second mode, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of data, a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information, and the first execution entity sends the first transmission data to the second execution entity according to the first information, including: the method comprises the steps that a first execution entity sends first transmission data to a second execution entity through different service quality flows, correspondingly, the second execution entity receives third transmission data and fourth transmission data from the first execution entity through different service quality flows, the third transmission data corresponds to first quintuple information, the fourth transmission data corresponds to third quintuple information, the second transmission data comprises the third transmission data and the fourth transmission data, and the second quintuple information comprises the first quintuple information and the third quintuple information.

It should be noted that the execution order of S302 and S303 is not limited in the embodiments of the present application.

S305, the second execution entity performs deduplication on second transmission data according to the second information, the first transmission data comprises the second transmission data, and the second transmission data is determined according to the second quintuple information.

It should be understood that, as mentioned above, the second transmission data received by the second execution entity may be the same as the first transmission data, or may be included in the first transmission data. The second execution entity identifies second transmission data from the received data according to the second quintuple information.

Regarding deduplication, as an example, when the first performing entity performs redundancy transmission, the same ID is added to the headers of the data packets of the service data and the duplicated data, and the second performing entity discards the data packet that is received in the second transmission data and is duplicated with the previous ID.

According to the embodiment of the application, when the air interface quality is poor and the service is damaged, the duplicated data and the original data are subjected to redundant transmission together, so that the retransmission time delay is reduced; determining redundancy transmission parameters according to the air interface scheduling information of the base station, so that the original data and the copied data can be prevented from being packed into the same transmission block for transmission, the possibility of failure in simultaneous transmission of the original data and the copied data is reduced, and the condition of failure of a redundancy mechanism is reduced; by realizing the redundant transmission from the fine granularity to the service flow (quintuple) level, the control precision during the redundant transmission is improved.

Optionally, the method 300 further comprises:

step 1, a first detection entity determines that an air interface quality index meets a first condition, and determines that a service is damaged.

Wherein, empty mouthful quality index satisfies first condition, includes: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal-to-interference-plus-noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold. The service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value;

and step 2, the first control entity acquires third information of the service damage caused by the fact that the air interface quality index meets the first condition in different time periods, wherein the third information is used for indicating that the service damage caused by the fact that the air interface quality index meets the first condition. The third information may be transmitted from the first detection entity to the first control entity, specifically, when the first detection entity and the first control entity are deployed on the same device, the third information may be acquired by the first control entity according to an interface between the first detection entity and the first control entity, or when the first detection entity and the first control entity are deployed on different devices, the third information may be sent by the first detection entity to the first control entity, or may be in another manner, which is not limited in this application.

And 3, the first control entity finds out the time interval rule of the service damage caused by the air interface quality damage according to the third information, and judges the time interval in which the redundant transmission is required.

The first control entity determines that the air interface quality index meets the time interval rule of service damage caused by the first condition according to the third information; the first control entity determines a transmission time interval according to the time interval rule, and the transmission time interval is used for instructing the first control entity to transmit the M copies of data only in the transmission time interval.

And 4, the first control entity sends the transmission time interval to the first execution entity.

Specifically, the parameter for transmitting data, which is sent by the first control entity to the first execution entity, further includes a transmission period.

The first control entity transmits the M copies of the data to the first execution entity only during a transmission period according to the parameter for transmitting the data, and accordingly, the second execution entity receives the second transmission data during the transmission period.

Reference may be made specifically to the relevant description in S406.

According to the embodiment of the application, the time-phased redundant transmission is realized by acquiring the rule that the air interface quality is damaged, namely, the redundant transmission is carried out in the time period that the air interface quality is damaged, and the redundant transmission is not carried out in the time period that the air interface quality is better, so that the occupation of air interface resources is reduced.

It should be understood that, when implementing the method for data transmission provided in the present application, at least one module in (b) in fig. 3 needs to be included in the entire communication system. The module deployment mode in fig. 3 (b) is flexible, and may be deployed in existing architectures such as MEC platform, 5G core network (5G core, 5gc) control plane, and the like, or may be deployed independently. Specifically, (1) the redundant transmission control module 3011 may be deployed independently, that is, the first control entity in the method 300 has the function of the redundant transmission control module 3011 alone; alternatively, the redundant transmission control module 3011 may be deployed in an MEC platform, i.e., the first control entity in the method 300 may be an MEC service in the MEC platform, the MEC service including the redundant transmission control module 3011; alternatively, the redundant transmission control module 3011 may be deployed in a 5GC control plane, which is an independent network element of the 5GC control plane, or is deployed in an existing network element of the 5GC control plane, that is, the first control entity in the method 300 may be a new network element in the 5GC control plane, and the network element separately has the function of the redundant transmission control module 3011, or the first control entity in the method 300 may be an existing network element in the 5GC control plane, for example, may be a UPF, and the network element includes the redundant transmission control module 3011, and the network element has the function of 3011 on the basis of the original function. (2) The air interface quality difference detecting module 3021 may be deployed independently, that is, the first detecting entity in the method 300 has a function of the air interface quality difference detecting module 3021 alone, or the air interface quality difference detecting module 3021 may be deployed in an MEC platform, that is, the first detecting entity in the method 300 may be an MEC service in the MEC platform, where the MEC service includes the air interface quality difference detecting module 3021, or the first detecting entity is a part of the MEC service; or, the air interface quality difference detecting module 3021 may be deployed in the 5GC control plane, and is an independent network element of the 5GC control plane or is deployed in an existing network element of the 5GC control plane, that is, the first detecting entity in the method 300 may be a new network element in the 5GC control plane, and the network element has the function of the air interface quality difference detecting module 3021 alone, or the first detecting entity in the method 300 may be an existing network element in the 5GC control plane, for example, may be a UPF, and the network element includes the air interface quality difference detecting module 3021, and the network element has the function of 3021 on the basis of the original function. (3) The terminal-side redundant transmission execution module 3031 may be deployed in a terminal, that is, the first execution entity or the second execution entity in the method 300 is a terminal device; alternatively, the redundant transmission execution module 3031 may be deployed independently, that is, the first execution entity or the second execution entity in the method 300 is a device separately provided with the function of the redundant transmission execution module 3031. (4) The redundant transmission control module 3041 on the network side may be deployed in the MEC platform, that is, the first execution entity or the second execution entity in the method 300 may be an MEC service in the MEC platform, where the MEC service includes the redundant transmission control module 3041, or the first execution entity or the second execution entity is a part of the MEC service; alternatively, 3041 may be deployed in UPF, i.e., the first execution entity or the second execution entity in method 300 may be UPF; alternatively, 3041 may be deployed independently, that is, the first execution entity or the second execution entity in the method 300 has the function of the redundant transmission control module 3041 separately.

With reference to fig. 4 and 5, the embodiment of the present application is described below with an example in which a UE and a UPF respectively deploy a redundant transmission execution module, an MEC platform deploys an MEC service, and the MEC service includes an air interface quality difference detection module and a redundant transmission control module, and is respectively performed from two situations of uplink redundant transmission and downlink redundant transmission.

The redundant transmission control module and the air interface quality detection module are deployed on an MEC platform, services provided by the two modules belong to the category of MEC services, a redundant transmission execution module on a network side is deployed on a UPF (unified power flow), and a redundant transmission execution module on a terminal side is deployed on UE (user equipment).

The method 400 for data transmission according to the embodiment of the present application is described in detail below with reference to fig. 4. Fig. 4 is a schematic interaction diagram of a method 400 of the present application. Specifically, in the method 400, the embodiment of the present application is described by taking the uplink redundant transmission as an example, that is, the terminal side performs the redundant transmission, and the network side performs deduplication on the received data.

S401a, the MEC App sends the information of the terminal, the information of the service flow and the threshold value of service flow transmission to a redundancy transmission control module deployed on the MEC platform.

Specifically, the MEC App calls an interface provided by the MEC service composed of an "air interface quality difference detection module" and a "redundant transmission control module" to set, for the MEC service, an IMSI of a terminal that is to open a redundant transmission function, an IP address of the terminal, quintuple information of a service flow, a 5G quality of service flag (5G quality of service identifier,5 qi) of the service flow, a threshold of a delay index allowed by the service flow, a threshold of a packet loss rate, and the like.

It should be understood that the IMSI of the terminal, the IP address of the terminal, which is to turn on the redundant transmission function here is a parameter related to facilitate the MEC service to subsequently send the redundant transmission to the terminal. Here, the five tuple information of the traffic flow and the 5QI of the traffic flow are parameters for facilitating subsequent sending of the MEC service to the network side for deduplication, where the five tuple information includes a source IP, a destination IP, a source port, a destination port, and a protocol type. The delay index threshold here may be a threshold of delay confidence, or may also be a threshold of statistical distribution of the delay by intervals. The threshold of the delay confidence may be a probability that the delay is smaller than a first threshold, for example, the first threshold is set to =10ms, and the threshold of the delay confidence is 99.999%, that is, the probability that the delay is smaller than 10ms is set to 99.999%, where the first threshold may be preset, or may be configured by the MEC APP.

It should be understood that, in a specific implementation, the MEC app sends the information to an interface provided by the MEC service, and then the redundant transmission control module acquires the information from the interface, or other modules of the MEC service acquire the information from the interface and analyze the information and transmit the information to the redundant transmission control module, or other manners may also be used, which is not limited in this application.

S401b, the MEC service replies to the MEC app with setting success/failure.

S402a, the redundant transmission Service periodically inquires the time delay index and the packet loss rate index of the Service flow to the UPF.

It should be understood that, when the delay indicator of the service flow needs to distinguish between an uplink and a downlink, that is, when uplink redundant transmission and downlink redundant transmission are performed, the thresholds corresponding to the delay indicator of the service flow may be the same or different, and when the thresholds corresponding to the delay indicator of the service flow are different, the thresholds need to be distinguished. References in this application to a requirement that the uplink and downlink criteria be similar, if not specifically stated, to the distinction made herein.

S402b, the UPF replies the time delay index and the packet loss rate index of the Service flow in the corresponding period to the redundancy transmission Service.

Optionally, S402c, the air interface quality detection module queries an air interface quality indicator from the nodeb.

It should be understood that the air interface quality index includes, but is not limited to, reference Signal Received Power (RSRP), reference Signal Received Quality (RSRQ), signal to interference plus noise ratio (SINR), initial transmission/retransmission error rate (distinguishing uplink from downlink), and the like.

It should be noted that, in this embodiment of the present application, a manner of acquiring a service delay, a packet loss rate, and an air interface quality index by an "air interface quality difference detection module" is not limited to the manner of acquiring from the UPF or the gnnodeb, and may also be acquired through an interface of a network data analysis function (NWDAF), for example.

Optionally, S402d, the gsnodeb replies an air interface quality indicator to the air interface quality detection module.

It should be understood that S402c and S402d may optionally be included in the method 400. If S402c and S402d are executed, in subsequent step S403, it may be determined whether the service impairment is caused by poor air interface quality, otherwise, the determination is not performed. Similarly, if S402c and S402d are executed, the MEC platform in the subsequent step S406 takes the air interface quality index as an influencing factor into consideration when determining the parameter of the redundant transmission; otherwise, the MEC platform determines the parameters of the redundant transmission according to other influencing factors.

And S403, the air interface quality detection module judges whether the service is damaged.

Specifically, the air interface quality detection module compares the delay index and the packet loss rate index of the current period received from the UPF in S402b with the threshold of the delay index and the threshold of the packet loss rate configured by the MEC app in S401a, determines whether the service is damaged, and determines whether uplink and downlink are divided.

As an example, the air interface quality detection module may periodically determine whether the service is damaged, and similarly, periodically report whether the service is damaged. For example, it is determined and reported every 10 minutes whether the service is damaged in the current period, or it is determined and reported every 5 minutes whether the service is damaged in the current period. In the subsequent step S406, the service-damaged periodic rule may be determined according to the reported result of whether the services in different periods are damaged. For example, the quality of the air interface may be specifically impaired by the fact that an air interface quality indicator does not meet a threshold requirement, such as RSRP, RSRQ, and SINR are lower than a specified threshold, and a bit error rate is higher than a specified threshold.

Optionally, the "air interface quality difference detection module" may further determine whether the service impairment is caused by the air interface quality difference according to the air interface quality index queried by the gnnodeb in S402c and S402d. As an example, if the quality index of the air interface is also deteriorated during the service impairment period, it may be considered that the service impairment is caused by the poor quality of the air interface.

S404, the air interface quality detection module reports the service damage to the redundant transmission control module.

Optionally, if it is determined in S403 that the service impairment is caused by poor quality of the air interface, in S404, the service impairment is also reported to the redundant transmission control module as being caused by poor quality of the air interface.

S405a, the redundant transmission control module queries air interface scheduling information from the nodeb.

As an example, the redundant transmission control module sends 5QI corresponding to the traffic flow of the terminal to the gnnodeb to acquire the scheduling information of the traffic flow of the terminal, because some scheduling information may be of 5QI level, such as the scheduling period.

The details of the air interface scheduling information are shown in corresponding contents in S406.

S405b, the gsnodeb returns air interface scheduling information to the redundant transmission control module.

It should be understood that the redundant transmission control module may obtain the air interface scheduling information according to the above method, or may also read the information from the local configuration file, or may also obtain the air interface scheduling information in other manners, which is not limited in this application.

S406, the redundant transmission control module determines the parameter of the redundant transmission.

It should be understood that the redundant transmission control module also needs to determine that the redundant transmission execution module on the UE side continuously performs redundant transmission, or performs redundant transmission according to time intervals, or performs redundant transmission according to other rules.

As an example, the redundant transmission control module may determine the time law of service damage according to whether the service in each time period reported by the air interface quality difference detection module is damaged. If the traffic impairment is regular in time, for example, the impairment of periodic traffic occurs regularly within a certain time period, then the redundant transmission can be initiated only within the certain time period, and if irregular, the redundant transmission can be continued.

As an example, the redundant transmission control module may determine to perform redundant transmission in some time period according to other rules, or pre-configure a time period in which the redundant transmission is required, which is not limited in this embodiment.

However, no matter the redundancy transmission is performed in a certain manner, the redundancy transmission control module needs to calculate the parameter of the redundancy transmission first and then send the parameter to the redundancy transmission execution module, so that the redundancy transmission execution module performs the redundancy transmission according to the parameter of the redundancy transmission.

In the following, possible methods for calculating the redundant transmission parameters are described as examples from the point of view of input parameters, output parameters, and calculation methods, respectively.

1. Inputting parameters:

(1) And (4) air interface quality index. The number of times of retransmission is needed can be calculated according to the index, for example, when the index is poor, the number of times of retransmission is more, otherwise, the number of times of retransmission is less.

It should be understood that if steps S402c and S402d are performed, the air interface quality index is taken as an input parameter, otherwise, the air interface quality index is not considered.

(2) The air interface scheduling information of the base station specifically refers to a scheduling period, a time slot ratio, whether different QoS streams support independent allocation of transport blocks, and the like.

It should be understood that if steps S405a and S405b are performed, the air interface quality index is taken as an input parameter, and otherwise, the air interface quality index is not considered.

a) The slot allocation indicates an allocation of Uplink (UL) slots (slots) and Downlink (DL) slots. As shown in fig. 8 (a), a special (S) slot is also used to transmit downlink data, and a DL slot: UL slot =7:3 as an example slot allocation.

b) The scheduling cycle refers to a time interval of each prescheduling when the prescheduling is opened.

In cooperation with the timeslot proportion, the scheduling period is used to calculate which timeslots can transmit uplink data. As an example, the slot allocation ratio is 7:3, and the scheduling period is 1 slot, which means that all 3 UL slots in (a) in fig. 8 can transmit uplink data. As another example, the slot allocation is 7:3, the scheduling period is 2 slots, and then the 3 rd UL slot in (a) in fig. 8 cannot transmit uplink data because when the scheduling period is 2 slots, since the interval between the second UL slot and the third UL slot in (a) in fig. 8 is 1 slot, when the second UL slot transmits uplink data, the third UL slot cannot transmit uplink data.

c) Whether different QoS streams support independent allocation of transport blocks means that if a base station does not support the capability, each allocation of transport blocks is calculated according to a scheduling period and a time slot allocation, each transport block has a time interval, if the base station supports the capability, the transport blocks can be allocated with the QoS streams as objects, if the base station supports the allocation, different QoS streams are independently allocated according to the scheduling period and the time slot allocation, and original data packets and duplicate data packets can be controlled to be transmitted by using different QoS streams during redundant transmission, so that the original data packets and the duplicate data packets are not packed into the same transport block.

2. Outputting parameters:

a) The redundant transmission mode is as follows: it means whether the original data packet and the duplicate data packet are sent by different QoS flows.

If the base station supports different QoS flows to independently distribute the transmission blocks, the original data packet and the copied data packet are sent by adopting different QoS flows during redundancy transmission, and the different QoS flows are realized by different quintuple, so quintuple information of the original data packet and the copied data packet needs to be output. If the base station does not support different QoS flows to independently allocate the transport blocks, the original data packet and the duplicate data packet are transmitted using the same QoS flow, but with an interval time so that the original data packet and the duplicate data packet are packed into different transport blocks.

b) Redundant transmission interval: refers to the transmission interval of the original data packet and the duplicate data packet.

c) The number of redundant transmissions: it means that several packets are duplicated and transmitted.

3. The calculation method comprises the following steps:

it should be noted that the calculation method is only an example, and the calculation target is to send the original data packet and the duplicate data packet through different transmission blocks.

a) As mentioned above, the redundant transmission mode is determined first, and whether the purpose of transmitting through different transmission blocks is achieved through different QoS flows is achieved. If the QoS flow can be distinguished, quintuple information sent by an original data packet and a duplicate data packet is output. The original packet can continue to use the original quintuple information of the service flow, and what quintuple information the duplicate packet uses can be obtained by reading the configuration file and the like.

b) If the purpose of sending through different transport blocks cannot be achieved through different QoS flows, the duplicate packet can use the same five-tuple as the original packet by using the same QoS flow. This requires the calculation of the interval of redundant transmissions.

As an example, the method of calculating the redundant transmission interval is related to the scheduling period and the slot ratio.

In fig. 8, (b) is derived by taking an example that the scheduling period is 1 timeslot, the timeslot ratio is 7:3, each timeslot is 0.5ms, the redundant transmission interval is 2ms, and the number of redundant transmissions is 2. It should be noted that, if the original data packet and the duplicate data packet transmit uplink data in the same time slot, they are packed into the same transmission block, so that the original data block and the duplicate data block need to be transmitted through different time slots. From the derived results, it is possible to achieve this.

In the uplink redundancy transmission performed in the method 400, the transmitted message needs to be transmitted in the UL timeslot, as shown in (b) of fig. 8, the original message arrives in the second timeslot, which is the DL timeslot, and the original message is not transmitted, but is transmitted in the fifth timeslot, i.e., the first UL timeslot, and the duplicate message arrives in the sixth timeslot, which is the DL timeslot, and the duplicate message is not transmitted, but is transmitted in the ninth timeslot, i.e., the second UL timeslot.

S407a, the redundancy transmission control module sends a redundancy transmission instruction to the redundancy transmission execution module at the terminal side, where the redundancy transmission instruction includes parameters of redundancy transmission and characteristics of a service flow that needs redundancy transmission.

In addition, the redundancy transmission control module also sends quintuple information needing redundancy transmission to a redundancy transmission indication module at the terminal side. Specifically, the redundant transmission control module may transmit the same or different quintuple information corresponding to a) and b) in "three, calculation method" in S406.

The instruction of the redundant transmission is also used for instructing the redundant transmission execution module at the terminal side whether to perform the continuous redundant transmission or perform the redundant transmission according to a certain rule, where the instruction corresponds to the content determined by the redundant transmission control module in S406.

The parameters of the redundant transmission here are the parameters output by the redundant transmission control module in S406: redundant transmission mode, redundant transmission interval and redundant transmission times.

The traffic flow herein may be characterized by quintuple information.

S407b, the redundant transmission execution module at the terminal side replies a response to the redundant transmission control module.

And S408a, the redundant transmission control module sends the service flow characteristics needing to be deduplicated to the redundant transmission execution module deployed in the UPF.

The traffic flow characteristic here may be five-tuple information of the traffic flow.

It should be noted that the quintuple information of the service flow in S408a in S407a is the same, that is, the service flow for performing redundancy transmission and the quintuple information corresponding to the service flow that needs to perform deduplication are the same.

And S408b, the redundancy transmission execution module deployed in the UPF replies a response to the redundancy transmission control module.

S409, the redundant transmission execution module at the terminal side identifies the service flow that needs redundant transmission.

The redundancy transmission performing module at the terminal side identifies the traffic flow requiring redundancy transmission according to the characteristics (for example, may be quintuple information) of the traffic flow received in S407 a. Illustratively, the redundancy transmission execution module at the terminal side determines the traffic flow that needs redundancy transmission according to the five-tuple information including the original packet and the duplicate packet in the "manner of redundancy transmission" received in S407 a.

As an example, in a specific implementation, a terminal application (for example, an app) may send a service stream to a redundant transmission execution module by calling an Application Programming Interface (API), and the service stream is sent by the redundant transmission execution module in S410 according to a redundant transmission parameter. Or, the terminal application may also place the redundant transmission execution module between the application layer and the transport layer protocol, so that the redundant transmission execution module executes redundant transmission after intercepting the traffic, or may also implement the redundant transmission in other ways, which is not limited in this application.

S410, the redundancy transmission execution module at the terminal side sends the service flow according to the redundancy transmission parameter.

Specifically, the redundancy transmission execution module on the terminal side continues to perform redundancy transmission or performs redundancy transmission for a specified period of time according to the instruction in S407 a.

S411, the gsnodeb forwards the traffic flow to the UPF.

And S412, the redundant transmission execution module deployed in the UPF identifies the retransmitted service flow and executes deduplication.

After the service flow reaches the UPF, the UPF identifies the service flow according to the quintuple information of the service flow which needs to be deduplicated and is received in S408a, and performs deduplication on the service flow.

As an example, when a terminal performs redundant transmission, for example, for a data packet with the same packet content, the same ID is added to the header of the data packet. Then, the de-duplication may be implemented by discarding the data packet with the previous duplicate ID when it is received. Subsequently, the deduplicated traffic stream is forwarded to the MEC App in S413.

S413, the UPF sends the traffic flow to the MEC app.

According to the embodiment of the application, the data packet is transmitted redundantly after being copied, and the redundancy transmission parameter is determined according to the air interface scheduling information of the base station, so that the time delay is reduced, and the problems that the original and copied data packets are packed to the same transmission block and the redundancy mechanism fails are solved. By realizing the redundant transmission from the fine granularity to the service flow (quintuple) level, the control precision during the redundant transmission is improved, and meanwhile, the occupation of the air interface resources is reduced by the time-interval redundant transmission.

The method 500 for data transmission according to the embodiment of the present application is described in detail below with reference to fig. 5. Fig. 5 is a schematic interaction diagram of a method 500 of the present application. Specifically, in the method 500, the embodiment of the present application is described by taking the downlink redundancy transmission as an example, that is, the network side performs redundancy transmission, and the terminal side performs deduplication on received data.

S501-S506 can be referred to the description of S401-S406. The difference between S506 and S406 is that when the parameter of redundant transmission is determined in S506, the input parameter does not include "air interface scheduling information of the base station" in S406.

And S507a, the redundancy transmission control module sends a redundancy transmission instruction to a redundancy transmission execution module of the UPF, wherein the redundancy transmission instruction comprises parameters of the redundancy transmission and the characteristics of the service flow needing the redundancy transmission.

The instruction of the redundant transmission is also used to instruct the redundant transmission execution module whether to perform the continuous redundant transmission or perform the redundant transmission according to a certain rule, where the instruction corresponds to the content determined by the redundant transmission control module in S506.

The parameters of the redundant transmission here are the parameters output by the redundant transmission control module in S506: redundant transmission mode, redundant transmission interval and redundant transmission times.

The traffic flow herein may be characterized by quintuple information.

And S507b, the redundant transmission execution module of the UPF replies a response to the redundant transmission control module.

And S508a, the redundant transmission control module sends the service flow characteristics needing to be deduplicated to the redundant transmission execution module deployed in the UPF.

It should be noted that the quintuple information of the service flow in S508a in S507a is the same, that is, the quintuple information corresponding to the service flow for performing redundancy transmission and the service flow for performing deduplication needs to be the same.

S508b, the redundant transmission execution module deployed in the UE replies a response to the redundant transmission control module.

S509, the MEC app sends the traffic flow to the UPF.

The redundant transmission performing module of the UPF identifies a service flow requiring redundant transmission S510.

The redundant transmission performing module of the UPF identifies a service flow requiring redundant transmission according to the characteristics (for example, may be quintuple information) of the service flow received in S507 a. Illustratively, the redundant transmission execution module of the UPF determines the service flow that needs redundant transmission according to the quintuple information including the original data packet and the duplicate data packet in the "redundant transmission mode" received in S507 a.

S511, the redundant transmission execution module of the UPF sends the service flow to the gsnodeb according to the parameter of the redundant transmission.

Specifically, the redundancy transmission execution module of the UPF continues to perform redundancy transmission or performs redundancy transmission for a specified period of time according to the instruction in S507 a.

S512, the gsnodeb forwards the traffic flow to the UE.

S513, the redundant transmission execution module deployed in the UE identifies the retransmitted service stream and executes deduplication.

After the service flow reaches the UE, the UE identifies the service flow according to the quintuple information of the service flow that needs to be deduplicated and is received in S508a, and performs deduplication on the service flow.

As an example, for example, when the UPF performs redundancy transmission, for a data packet with the same packet content, the same ID is added to the header of the data packet. Then, the de-duplication may be implemented by discarding the data packet with the previous duplicate ID when it is received.

With reference to fig. 6 and 7, the embodiment of the present application is introduced in terms of an example in which a UE deploys a redundant transmission execution module, an MEC platform deploys an MEC service, and the MEC service includes an air interface quality difference detection module, a redundant transmission control module, and a redundant transmission execution module, and is respectively based on two situations of uplink redundant transmission and downlink redundant transmission.

The redundant transmission control module, the air interface quality detection module and the redundant transmission execution module are deployed on the MEC platform, and services provided by the three modules belong to the category of MEC services.

The method 600 for data transmission according to the embodiment of the present application is described in detail below with reference to the drawings. Fig. 6 is a schematic interaction diagram of a method 600 of the present application. Specifically, in the method 600, the embodiment of the present application is introduced by taking the uplink redundancy transmission as an example, that is, the terminal side performs redundancy transmission, the network side receives the data of the redundancy transmission and then forwards the data to the MEC platform, and the MEC platform performs deduplication on the received data.

S601-S607 can be seen in S401-S407. Wherein, S607 is different from S407 in that: the redundant transmission control module also sends the IP address of the redundant transmission execution module of the MEC platform to the redundant transmission execution module deployed at the UE so that the UE can establish a tunnel to the "redundant transmission execution module".

And S608a, the redundant transmission control module sends the service flow characteristics needing to be deduplicated to the redundant transmission execution module deployed on the MEC platform.

It should be noted that the five-tuple information of the service flow in S608a in S607a is the same, that is, the five-tuple information corresponding to the service flow performing redundant transmission and the service flow requiring deduplication is the same.

S608b, the redundant transmission execution module deployed on the MEC platform replies a response to the redundant transmission control module.

S609, the redundant transmission execution module at the terminal side identifies the service flow that needs redundant transmission.

The redundancy transmission performing module at the terminal side identifies the traffic flow requiring redundancy transmission according to the characteristics (for example, may be quintuple information) of the traffic flow received in S607 a. Illustratively, the redundancy transmission execution module at the terminal side determines the traffic flow that needs redundancy transmission according to the five-tuple information including the original packet and the duplicate packet in the "manner of redundancy transmission" received in S607 a.

As an example, in a specific implementation, a terminal application (for example, an app) may send a service flow to a redundant transmission execution module by calling an Application Programming Interface (API), and the service flow is sent by the redundant transmission execution module in S610 according to a redundant transmission parameter. Or, the terminal application may also place the redundant transmission execution module between the application layer and the transport layer protocol, so that the redundant transmission execution module executes redundant transmission after intercepting the traffic, or may also implement the redundant transmission in other ways, which is not limited in this application.

S610, the redundant transmission execution module at the terminal side sends a service flow to the nodeb according to the parameter of the redundant transmission.

Specifically, the redundancy transmission execution module on the terminal side continues redundancy transmission or performs redundancy transmission for a specified period of time according to the instruction in S607 a.

Illustratively, the UE establishes a tunnel to the redundant transmission control module. Specifically, the outer IP of the tunnel in the data packet of the service flow is UE IP → MEC platform redundant transmission execution module IP, and the outer IP of the tunnel is UE IP → MEC APP IP. The data packet is sent to the destination IP of the outer layer of the tunnel, and then sent to the destination IP of the inner layer of the tunnel by the destination IP of the outer layer of the tunnel. Where the front is the source IP address and the back is the destination address.

S611a, the gsnodeb forwards the service flow to the UPF.

S611b, the UPF forwards the service flow to the redundant transmission execution module of the MEC platform.

And S612, identifying the retransmitted service stream by a redundant transmission execution module deployed on the MEC platform, and executing deduplication.

After the service flow reaches the MEC platform, the redundancy transmission execution module of the MEC platform identifies the service flow according to the quintuple information of the service flow which needs to be deduplicated and is received in S608a, and performs deduplication on the service flow.

As an example, for example, when a terminal performs redundant transmission, for a data packet with the same packet content, the same ID is added to the header of the data packet. Then, the duplication removal may be implemented by discarding the data packet with the previous duplicate ID after the redundant transmission execution module of the MEC platform receives the data packet. Subsequently, in S613, the deduplicated traffic stream is forwarded to the MEC App.

S613, the MEC platform sends the service flow to the MEC app.

Illustratively, the MEC platform needs to remove the tunnel outer IP header and the tunnel header in the packet and then forward the packet to the MEC app.

According to the embodiment of the application, the data packet is copied and then redundantly transmitted, and the redundancy transmission parameters are determined according to the air interface scheduling information of the base station, so that the time delay is reduced, and the problems that the original and copied data packets are packed to the same transmission block and a redundancy mechanism fails are solved. By realizing the redundant transmission from the fine granularity to the service flow (quintuple) level, the control precision during the redundant transmission is improved, and meanwhile, the occupation of the air interface resources is reduced by the time-interval redundant transmission.

The method 700 for data transmission according to the embodiment of the present application is described in detail below with reference to the drawings. Fig. 7 is a schematic interaction diagram of a method 700 of the present application. Specifically, in the method 700, the embodiment of the present application is introduced by taking downlink redundancy transmission as an example, that is, the MEC platform performs redundancy transmission on data, the network side receives the data subjected to redundancy transmission and then forwards the data to the terminal side, and the terminal side performs deduplication on the received data.

S701-S706 can be referred to the description of S401-S406 specifically.

S707a, the redundancy transmission control module sends a redundancy transmission instruction to the redundancy transmission execution module of the MEC platform, where the redundancy transmission instruction includes parameters of redundancy transmission and characteristics of a service flow that needs redundancy transmission.

The instruction of the redundant transmission is also used to instruct the redundant transmission execution module whether to perform the continuous redundant transmission or perform the redundant transmission according to a certain rule, which corresponds to the content determined by the redundant transmission control module in S706.

The parameters of the redundant transmission here are the parameters output by the redundant transmission control module in S706: redundant transmission mode, redundant transmission interval and redundant transmission times.

The traffic flow herein may be characterized by quintuple information.

And S707b, the redundancy transmission execution module of the MEC platform replies a response to the redundancy transmission control module.

S708a, the redundant transmission control module sends the service flow characteristics that need to be deduplicated to the redundant transmission execution module deployed in the UE.

It should be noted that the quintuple information of the service flow in S708a in S707a is the same, that is, the service flow for performing redundancy transmission and the service flow that needs to perform deduplication correspond to the same quintuple information.

S708b, the redundant transmission execution module deployed in the UE replies a response to the redundant transmission control module.

S709, the MEC app sends the traffic flow to the UPF.

S710, the redundant transmission execution module of the MEC platform identifies a service flow that needs redundant transmission.

The redundant transmission execution module identifies a service flow that needs redundant transmission according to the characteristics (for example, may be quintuple information) of the service flow received in S707 a.

Illustratively, the redundant transmission execution module determines the service flow that needs redundant transmission according to the quintuple information including the original data packet and the duplicate data packet in the "manner of redundant transmission" received in S707 a.

And S711a, the redundancy transmission execution module of the MEC platform sends the service flow to the UPF according to the redundancy transmission parameters.

Specifically, the redundancy transmission execution module of the UPF continues the redundancy transmission or performs the redundancy transmission for a specified period of time according to the instruction in S707 a.

S711b, the UPF forwards the traffic flow to the gsnodeb.

S711c, the gsnodeb forwards the traffic flow to the UE.

S712, the redundant transmission execution module deployed in the UE identifies the retransmitted service stream and executes deduplication.

After the service flow reaches the UE, the UE identifies the service flow according to the quintuple information of the service flow that needs to be deduplicated and received in S708a, and performs deduplication on the service flow.

The embodiment of the present application also provides a communication system 3000, as shown in (b) in fig. 3. The system 3000 may include a first communication device.

In a possible design, the redundant transmission performing module 3031 may be deployed on the terminal side, and the redundant transmission performing module 3031 may be deployed independently or on the UE; the redundant transmission execution module 3041 may be deployed on the network side, for example, on the UPF; the air interface quality difference detection module 3021 and the redundant transmission module 3011 may be deployed on an MEC EC platform, or more specifically, may be a module in an MEC service, or may also be deployed independently. Such possible designs may be found in the specific implementations in methods 400 and 500 described above.

In another possible design, the redundant transmission performing module 3031 may be deployed at a terminal side, and the redundant transmission performing module 3031 may be deployed independently or on a UE; the redundant transmission execution module 3041 may be deployed on the MEC platform, or more specifically, may be a module in the MEC service; the air interface quality difference detection module 3021 and the redundant transmission module 3011 may be deployed on an MEC EC platform, or more specifically, may be a module in an MEC service, or may also be deployed independently. This possible design may be found in specific implementations in methods 600 and 700 described above.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 1 to 8. Hereinafter, the apparatus provided in the embodiment of the present application is described in detail with reference to fig. 9 to 10.

Fig. 9 is a schematic block diagram of a communication device for secure communication according to an embodiment of the present application. As shown in fig. 9, the communication device 10 may include a transceiver module 11 and a processing module 12.

The transceiver module 11 may be configured to receive information sent by other apparatuses, and may also be configured to send information to other apparatuses. Such as receiving the first information or sending the second information. The processing module 12 may be configured to perform content processing of the apparatus, for example, determine parameters for transmitting data according to the information for scheduling air interface resources.

In one possible design, the communication device 10 may correspond to the first control entity or the redundant transmission control module in the above-described method embodiment.

Specifically, the communication device 10 may correspond to the first control entity or the redundant transmission control module in any one of the methods 300 to 700 according to the embodiment of the present application, and each unit in the communication device 10 is respectively used for realizing the operation performed by the first control entity or the redundant transmission control module in the corresponding method.

Illustratively, when the communication device 10 corresponds to the first control entity in the method 300, the transceiver module 11 is configured to execute steps S302 and S303, and the processing module 12 is configured to execute step S301.

Illustratively, when the communication device 10 corresponds to the redundant transmission control module in the method 400, the transceiver module 11 is configured to execute steps S401a, S401b, S404, S416S405a, S405b, S407a, S407b, S408a, S408b, S413, and the processing module 12 is configured to execute step S406.

Illustratively, when the communication device 10 corresponds to the redundant transmission control module in the method 500, the transceiver module 11 is configured to execute steps S501a, S501b, S504, S416S505a, S505b, S507a, S507b, S508a, S508b, S509, and the processing module 12 is configured to execute S506.

Illustratively, when the communication device 10 corresponds to the redundant transmission control module in the method 600, the transceiver module 11 is configured to execute steps S601a, S601b, S604, S416S605a, S605b, S607a, S607b, S608a, S608b, S613, and the processing module 12 is configured to execute S606.

Illustratively, when the communication device 10 corresponds to the redundant transmission control module in the method 700, the transceiver module 11 is configured to execute steps S701a, S701b, S704, S416S705a, S705b, S707a, S707b, S708a, S708b, S709, and the processing module 12 is configured to execute S706.

Specifically, in a possible embodiment, the processing module 12 is configured to determine, according to information used for scheduling air interface resources, a parameter used for transmitting data, where the parameter used for transmitting data includes a first number M;

a transceiver module 11, configured to transmit first information to a first execution entity, where the first information includes first quintuple information corresponding to service data and a parameter used for data transmission, the first information is used to instruct the first execution entity to transmit first transmission data, the first transmission data includes the service data and M copies of data, the M copies of data are obtained by copying the service data M times, and M is a positive integer;

the transceiver module 11 is further configured to transmit second information to a second execution entity, where the second information is used to instruct the second execution entity to perform deduplication on second transmission data, the second information includes second quintuple information corresponding to the first transmission data, the first transmission data includes the second transmission data, and the second quintuple information includes the first quintuple information.

Wherein the information for scheduling air interface resources includes: the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a transmission interval of any one of the service data and the M pieces of duplicated data, or the information for scheduling air interface resources includes: the radio access network device for transmitting the first transmission data has a function of independently allocating a transport block to different qos flows, where the parameter for transmitting data further includes third quintuple information corresponding to the M copies of data, and a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information, where the second quintuple information further includes the third quintuple information, and the information for scheduling an air interface resource is received by the first control entity from the radio access network device, or the information for scheduling an air interface resource is preconfigured.

Optionally, the processing module 12 is further configured to acquire an air interface quality indicator by the first control entity, where the air interface quality indicator includes at least one of the following: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate;

the processing module 12 is further configured to determine a parameter for transmitting data according to the information for scheduling air interface resources, including:

the processing module 12 is further configured to determine, by the first control entity, the parameter for transmitting data according to the information for scheduling the air interface resource and the air interface quality indicator.

Optionally, the processing module 12 is further configured to obtain third information that service is damaged when the air interface quality indicator meets the first condition at different time periods;

the processing module 12 is further configured to determine, according to the third information, a time interval rule that the air interface quality index meets a first condition and causes service damage;

the processing module 12 is further configured to determine a transmission period according to the period rule, where the transmission period is used to instruct the first control entity to transmit the M copies of data only in the transmission period.

Optionally, the air interface quality index satisfies a first condition, including: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold, and the service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value.

Optionally, the parameter for transmitting data further includes the transmission period.

Optionally, the transceiver module 11 is further configured to receive the third information from the first detection entity at different time periods, where the third information is used to indicate that the air interface quality indicator satisfies the first condition, which results in the service being damaged.

In another possible design, the communication device 10 may correspond to the first execution entity or the redundant transmission execution module in the above-described method embodiment.

Specifically, the communication device 10 may correspond to the first execution entity or the redundant transmission execution module in any one of the methods 300 to 700 according to the embodiment of the present application, and each unit in the communication device 10 is respectively configured to implement the operation performed by the first execution entity or the redundant transmission execution module in the corresponding method.

Illustratively, when the communication device 10 corresponds to the first execution entity in the method 300, the transceiver module 11 is configured to execute steps S302, S303, and S304.

Exemplarily, when the communication device 10 corresponds to the redundant transmission execution module deployed at the UE in the method 400, the transceiver module 11 is configured to execute steps S407a, S407b, and S410, and the processing module 12 is configured to execute step S409.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed in the UPF in the method 500, the transceiver module 11 is configured to perform steps S502a, S502b, S507a, S507b, S509, and S511, and the processing module 12 is configured to perform step S510.

Exemplarily, when the communication device 10 corresponds to the redundant transmission execution module deployed in the UE in the method 600, the transceiver module 11 is configured to execute steps S607a, S607b, S610, and the processing module 12 is configured to execute step S609.

Illustratively, when the communication device 10 corresponds to the redundant transmission execution module deployed in the MEC platform in the method 700, the transceiver module 11 is configured to execute steps S707a, S707b, S709, and S711a, and the processing module 12 is configured to execute step S710.

Specifically, in a possible embodiment, the transceiver module 11 is configured to receive first information from a first control entity, where the first information includes first quintuple information and the parameter for transmitting data, the parameter for transmitting data includes a first number M, and the parameter for transmitting data is determined according to air interface scheduling information;

the transceiver module 11 is further configured to send the first transmission data to a second execution entity according to the first information, where the first transmission data includes the service data and M copies of the data, the service data is determined according to the first quintuple information, the M copies of the data are obtained by copying the service data M times, and M is a positive integer.

Optionally, the parameter for transmitting data further includes an interval period, where the interval period is used to indicate a sending interval of any one of the service data and the M copies of data, and the first executing entity sends the first transmission data to a second executing entity according to the first information, where the sending interval period includes:

the first execution entity sends any one of the following items to the second execution entity at intervals of the interval:

one of the business data and the M copies of data;

or, the parameter for transmitting data further includes a third quintuple information corresponding to the M copies of data, where a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information,

the first executing entity sends the first transmission data to a second executing entity according to the first information, and the first transmitting data comprises:

the first execution entity sends the first transmission data to the second execution entity through different QoS flows.

Optionally, the parameter for transmitting data further includes a transmission time period, and the transceiver module 11 is further configured to transmit the M copies of data only in the transmission time period according to the parameter for transmitting data.

In another possible design, the communication device 10 may correspond to the second execution entity or the redundant transmission execution module in the above-described method embodiment.

Specifically, the communication device 10 may correspond to the second execution entity or the redundant transmission execution module in any one of the methods 300 to 700 according to the embodiment of the present application, and each unit in the communication device 10 is configured to implement the operation performed by the second execution entity or the redundant transmission execution module in the corresponding method.

Illustratively, when the communication device 10 corresponds to the second execution entity in the method 300, the transceiver module 11 is configured to execute steps S304 and S303, and the processing module 12 is configured to execute step S305.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed in the UPF in the method 400, the transceiver module 11 is configured to perform steps S402a, S402b, S408a, S408b, S411, and S413, and the processing module 12 is configured to perform step S412.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed in the UE in the method 500, the transceiver module 11 is configured to perform steps S508a, S508b, S512, and the processing module 12 is configured to perform step S513.

Illustratively, when the communication device 10 corresponds to the redundant transmission execution module deployed on the MEC platform in the method 600, the transceiver module 11 is configured to execute steps S608a, S608b, S611b, and S613, and the processing module 12 is configured to execute step S612.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed at the UE in the method 700, the transceiving module 11 is configured to perform steps S7008a, S708b, S711c, and the processing module 12 is configured to perform step S712.

Specifically, in a possible embodiment, the transceiver module 11 is configured to receive second information from the first control entity, where the second information includes second five-tuple information, and the second five-tuple information corresponds to the first transmission data; the second execution entity receiving second transmission data from the first execution entity; a processing module 12, configured to perform deduplication on the second transmission data according to the second information, where the first transmission data includes the second transmission data, and the second transmission data is determined according to the second quintuple information.

Optionally, the transceiver module 11 is further configured to receive second transmission data from the first execution entity, and includes: the second execution entity receiving third transmission data from the first execution entity; after the interval period, the transceiver module 11 is further configured to receive fourth transmission data from the first execution entity, where the second transmission data includes the third transmission data and the fourth transmission data; or, the transceiver module 11 is further configured to receive third transmission data and fourth transmission data from the first execution entity through different qos flows, where the third transmission data corresponds to the first quintuple information, the fourth transmission data corresponds to the third quintuple information, the second transmission data includes the third transmission data and the fourth transmission data, and the second quintuple information includes the first quintuple information and the third quintuple information.

Optionally, the transceiver module 11 is specifically configured to receive the second transmission data in a transmission time period.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed in the UPF in the method 400, the transceiver module 11 is configured to perform steps S402a to S402d, S404, and the processing module 12 is configured to perform step S403.

Illustratively, when the communication device 10 corresponds to the redundant transmission execution module deployed in the UE in the method 500, the transceiver module 11 is configured to execute steps S502a-S502d, S504, and the processing module 12 is configured to execute step S503.

Illustratively, when the communication device 10 corresponds to the redundant transmission execution module deployed on the MEC platform in the method 600, the transceiver module 11 is configured to execute steps S602a to S602d, S604, and the processing module 12 is configured to execute step S603.

Illustratively, when the communication device 10 corresponds to the redundant transmission performing module deployed in the UE in the method 700, the transceiver module 11 is configured to perform steps S702a to S702d, S704, and the processing module 12 is configured to perform step S703.

Specifically, in a possible embodiment, the processing module 12 is configured to determine that the air interface quality indicator satisfies a first condition, where the determining that the air interface quality indicator satisfies the first condition includes: the reference signal receiving power is lower than a first threshold, or the reference signal receiving quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold; the processing module 12 is further configured to determine that the service is damaged, where the service damage includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value; and the transceiver module 11 is configured to send third information to the first control entity at different time periods, where the third information is used to indicate that the service is damaged due to the air interface quality indicator meeting the first condition.

Fig. 10 is a schematic diagram of an apparatus 20 for data transmission according to an embodiment of the present disclosure.

In a possible design, the apparatus 20 may be a first control entity or a redundant transmission control module, or may be a chip or a chip system located on the first control entity or the redundant transmission control module.

In one possible design, the apparatus 20 may be a first execution entity or a redundant transmission execution module, or may be a chip or a system of chips located on the first execution entity or the redundant transmission execution module.

In a possible design, the apparatus 20 may be a second execution entity or a redundant transmission execution module, or may be a chip or a chip system located on the second execution entity or the redundant transmission execution module.

In a possible design, the apparatus 20 may be a first detection entity or an air interface quality difference detection module, and may also be a chip or a chip system located on the first detection entity or the air interface quality difference detection module.

The apparatus 20 may include a processor 21 (i.e., an example of a processing module) and a memory 22. The memory 22 is used for storing instructions, and the processor 21 is used for executing the instructions stored in the memory 22 to make the apparatus 20 implement the steps performed by the devices in the various possible designs as described in the corresponding methods in fig. 1 to 8.

Further, the apparatus 20 may further include an input port 23 (i.e., one example of a transceiver module) and an output port 24 (i.e., another example of a transceiver module). Further, the processor 21, memory 22, input port 23 and output port 24 may communicate with each other via internal connection paths, passing control and/or data signals. The memory 22 is used for storing a computer program, and the processor 21 may be used for calling and running the computer program from the memory 22 to control the input port 23 to receive a signal and the output port 24 to send a signal, so as to complete the steps of the method described above for the terminal device or the radio access network device or the UE or the base station. The memory 22 may be integrated in the processor 21 or may be provided separately from the processor 21.

Alternatively, if the message transmission apparatus 20 is a communication device, the input port 23 is a receiver, and the output port 24 is a transmitter. Wherein the receiver and the transmitter may be the same or different physical entities. When the same physical entity, may be collectively referred to as a transceiver.

Alternatively, if the device 20 is a chip or a circuit, the input port 23 is an input interface, and the output port 24 is an output interface.

As an implementation manner, the functions of the input port 23 and the output port 34 may be realized by a transceiver circuit or a dedicated chip for transceiving. The processor 21 may be considered to be implemented by a dedicated processing chip, processing circuitry, a processor, or a general purpose chip.

As another implementation manner, a device provided by the embodiment of the present application may be implemented by using a general-purpose computer. Program codes that will implement the functions of the processor 21, the input port 23 and the output port 24 are stored in the memory 22, and a general-purpose processor implements the functions of the processor 21, the input port 23 and the output port 24 by executing the codes in the memory 22.

Each module or unit in the apparatus 20 may be configured to execute each action or processing procedure executed by a device (e.g., a terminal device) performing random access in the foregoing method, and a detailed description thereof is omitted here for avoiding repeated description.

For the concepts, explanations, details and other steps related to the technical solutions provided in the embodiments of the present application related to the apparatus 20, please refer to the descriptions of the foregoing methods or other embodiments, which are not repeated herein.

It should be understood that in the embodiments of the present application, the processor may be a Central Processing Unit (CPU), and the processor 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, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

An embodiment of the present application further provides a computer-readable storage medium, on which computer instructions for implementing the method executed by the first control entity, the redundant transmission control module, the first execution entity, the second execution entity, the first detection entity, the air interface quality difference detection module, or the redundant transmission execution module in the foregoing method embodiment are stored.

For example, when being executed by a computer, the computer program enables the computer to implement the method performed by the first control entity or the redundant transmission control module or the first execution entity or the second execution entity or the first detection entity or the air interface quality difference detection module or the redundant transmission execution module in the above method embodiments.

For example, when the computer program is executed by a computer, the computer may implement the method performed by the first control entity or the redundant transmission control module or the first execution entity or the second execution entity or the first detection entity or the air interface quality difference detection module or the redundant transmission execution module in the method embodiments described above.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on 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 one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements 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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of data transmission, comprising:

a first control entity determines parameters for transmitting data according to information for scheduling air interface resources, wherein the parameters for transmitting data comprise a first quantity M;

the first control entity transmits first information to a first execution entity, wherein the first information comprises first quintuple information corresponding to service data and the parameter for transmitting data, the first information is used for indicating the first execution entity to transmit first transmission data, the first transmission data comprises the service data and M copies of data, the M copies of data are obtained by copying the service data for M times, and M is a positive integer;

the first control entity transmits second information to a second execution entity, the second information is used for indicating the second execution entity to perform deduplication on second transmission data, the second information comprises second quintuple information corresponding to the first transmission data, the first transmission data comprises the second transmission data, and the second quintuple information comprises the first quintuple information.

2. The method of claim 1,

the information for scheduling air interface resources includes: the ratio of uplink time slots and downlink time slots for transmitting the first transmission data, the time period of the time slots for transmitting the first transmission data is prescheduled,

the parameter for transmitting data further includes an interval period indicating a transmission interval of any one of the traffic data and the M pieces of duplicated data,

or, the information for scheduling air interface resources includes: the radio access network device for transmitting said first transmission data is provided with the functionality to allocate transport blocks independently to different quality of service flows,

the parameters for transmitting data further comprise third quintuple information corresponding to the M copies of data, wherein the service quality flow corresponding to the third quintuple information is different from the service quality flow corresponding to the first quintuple information,

wherein the second quintuple information further includes the third quintuple information,

the information for scheduling the air interface resource is received by the first control entity from the radio access network device, or the information for scheduling the air interface resource is preconfigured.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the first control entity obtains an air interface quality index, wherein the air interface quality index comprises at least one of the following items: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate;

the first control entity determines parameters for transmitting data according to the information for scheduling air interface resources, including:

and the first control entity determines the parameters for transmitting the data according to the information for scheduling the air interface resources and the air interface quality index.

4. The method of claim 3, further comprising:

the first control entity acquires third information of service damage caused by the fact that the air interface quality index meets a first condition at different time periods;

the first control entity determines that the air interface quality index meets the time interval rule of service damage caused by the first condition according to the third information;

and the first control entity determines a transmission time interval according to the time interval rule, wherein the transmission time interval is used for indicating the first control entity to transmit the M copies of the data only in the transmission time interval.

5. The method according to claim 4, wherein the air interface quality indicator satisfies a first condition, which includes: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold, and the service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value.

6. The method of claim 5, wherein the parameters for transmitting data further comprise the transmission time period.

7. The method according to claim 5 or 6, wherein the acquiring, by the first control entity, third information that the service is damaged due to the fact that the air interface quality indicator satisfies the first condition at different time periods includes:

the first control entity receives the third information from the first detection entity at different time periods, wherein the third information is used for indicating that the air interface quality index meets the first condition, so that the service is damaged.

8. A method of data transmission, comprising:

a first execution entity receives first information from a first control entity, where the first information includes first quintuple information and the parameter for transmitting data, the parameter for transmitting data includes a first number M, and the parameter for transmitting data is determined according to air interface scheduling information;

and the first execution entity sends the first transmission data to a second execution entity according to the first information, wherein the first transmission data comprises the service data and M copies of data, the service data is determined according to the first quintuple information, the M copies of data are obtained by copying the service data M times, and M is a positive integer.

9. The method of claim 8,

the parameter for transmitting data further includes an interval period indicating a transmission interval of the traffic data and the M copies of data,

the first execution entity sends the first transmission data to a second execution entity according to the first information, and the method comprises the following steps:

one of the business data and the M copies of data;

or,

and the first execution entity sends the first transmission data to the second execution entity through different service quality flows.

10. The method according to claim 8 or 9, characterized in that the method further comprises:

the parameters for transmitting data further include a transmission period,

the first control entity transmits the M copies of data only in the transmission period according to the parameter for transmitting data.

11. An apparatus for data transmission, comprising:

a processing module, configured to determine a parameter for transmitting data according to information used for scheduling air interface resources, where the parameter for transmitting data includes a first number M;

a transceiver module, configured to transmit first information to a first execution entity, where the first information includes first quintuple information corresponding to service data and the parameter for data transmission, and the first information is used to instruct the first execution entity to transmit first transmission data, where the first transmission data includes the service data and M copies of the service data, where M copies of the service data are obtained by copying the service data M times, and M is a positive integer;

the transceiver module is further configured to transmit second information to a second execution entity, where the second information is used to instruct the second execution entity to perform deduplication on second transmission data, the second information includes second quintuple information corresponding to the first transmission data, the first transmission data includes the second transmission data, and the second quintuple information includes the first quintuple information.

12. The apparatus of claim 11,

the parameter for transmitting data further includes an interval period indicating a transmission interval of any one of the traffic data and the M copies of data,

or, the information for scheduling air interface resources includes: the radio access network equipment for transmitting said first transmission data is provided with the functionality to allocate transport blocks independently to different quality of service flows,

13. The apparatus of claim 11 or 12,

the processing module is further configured to acquire an air interface quality indicator by the first control entity, where the air interface quality indicator includes at least one of: reference signal received power, reference signal received quality, signal to interference plus noise ratio, initial transmission/retransmission error rate;

the processing module is further configured to determine a parameter for transmitting data according to the information for scheduling the air interface resource, and includes:

the processing module is further configured to determine, by the first control entity, the parameter for transmitting data according to the information for scheduling the air interface resource and the air interface quality indicator.

14. The apparatus of claim 13,

the processing module is further configured to acquire third information that the service is damaged when the air interface quality index meets the first condition at different time periods;

the processing module is further configured to determine, according to the third information, a time interval rule that the air interface quality index meets a first condition, so that the service is damaged;

the processing module is further configured to determine a transmission time period according to the time period rule, where the transmission time period is used to instruct the first control entity to transmit the M copies of data only in the transmission time period.

15. The apparatus of claim 14, wherein the air interface quality indicator satisfies a first condition, comprising: the reference signal received power is lower than a first threshold, or the reference signal received quality is lower than a second threshold, or the signal to interference plus noise ratio is lower than a third threshold, or the initial transmission/retransmission error rate is higher than a fourth threshold, and the service impairment includes: the time delay is higher than a fifth threshold value, or the packet loss rate is higher than a sixth threshold value.

16. The apparatus of claim 15, wherein the parameters for transmitting data further comprise the transmission time period.

17. The apparatus of claim 15 or 16,

the transceiver module is further configured to receive, at different time periods, the third information from the first detection entity, where the third information is used to indicate that the service is damaged due to the air interface quality indicator meeting the first condition.

18. An apparatus for data transmission, comprising:

a transceiver module, configured to receive first information from a first control entity, where the first information includes first quintuple information and the parameter for data transmission, and the parameter for data transmission includes a first number M, and the parameter for data transmission is determined according to air interface scheduling information;

the transceiver module is further configured to send the first transmission data to a second execution entity according to the first information, where the first transmission data includes the service data and M copies of the data, the service data is determined according to the first quintuple information, the M copies of the data are obtained by copying the service data M times, and M is a positive integer.

19. The apparatus of claim 18,

the transceiver module is specifically configured to send any one of the following to the second enforcement entity at intervals:

one of the business data and the M copies of data;

or, the parameter for transmitting data further includes third quintuple information corresponding to the M copies of data, where a qos flow corresponding to the third quintuple information is different from a qos flow corresponding to the first quintuple information,

the transceiver module is further specifically configured to send the first transmission data to the second execution entity through a different qos flow.

20. The apparatus of claim 18 or 19,

the parameters for transmitting data further include a transmission period,

the transceiver module is further configured to transmit the M copies of data only in the transmission period according to the parameter for transmitting data.

21. A communications apparatus, comprising:

a processor and a memory;

the memory for storing a computer program;

the processor configured to execute the computer program stored in the memory to cause the communication apparatus to perform the communication method of any one of claims 1 to 7, or to perform the communication method of any one of claims 8 to 10.

22. A computer-readable storage medium, having stored thereon a computer program which, when run on a computer, causes the computer to perform the communication method according to any one of claims 1 to 7, or to perform the communication method according to any one of claims 8 to 10.

23. A chip system, comprising: a processor for calling and running a computer program from a memory so that a communication device in which the system-on-chip is installed performs the communication method according to any one of claims 1 to 7, or performs the communication method according to any one of claims 8 to 10.