CN112235820B

CN112235820B - Configuration method and device of data frame structure, computer equipment and storage medium

Info

Publication number: CN112235820B
Application number: CN202011490355.5A
Authority: CN
Inventors: 陈林; 徐慧俊; 杨波; 区洋; 丁宝国
Original assignee: Comba Telecom Systems China Ltd
Current assignee: Comba Network Systems Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-03-12
Anticipated expiration: 2040-12-17
Also published as: CN112235820A

Abstract

The application relates to a configuration method and device of a data frame structure, computer equipment and a storage medium. The method comprises the following steps: and the base station determines configuration parameters according to the ratio of each service type in the URLLC service of the current cell and sends the configuration parameters to the user terminal so that the user terminal transmits URLLC service data according to the data frame structure indicated by the configuration parameters. Because the occupation ratios of different URLLC service types correspond to different configuration parameters, namely, the occupation ratios of different URLLC service types correspond to different data frame structures, when the user terminal transmits the URLLC services of different types according to the data frame structures indicated by the configuration parameters, the transmission can be carried out based on the most matched data frame structure, and the transmission efficiency and the transmission reliability of the URLLC services are improved.

Description

Configuration method and device of data frame structure, computer equipment and storage medium

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for configuring a data frame structure, a computer device, and a storage medium.

Background

Mobile communication has progressed through several stages of 2G, 3G and 4G, and has now entered the 5G development and deployment stage.

The third Generation Partnership Project (3 rd Generation Partnership Project, 3 GPP) defines three major traffic types for 5G: enhanced Mobile bandwidth service (eMBB), Low-Latency and high-reliability connection service (URLLC), and Enhanced machine Type Communication (eMTC). The R15 protocol that has been frozen today only supports eMBB traffic, while the content of URLLC traffic is newly added in the R16 protocol that is about to be completed. Commercial base stations of most manufacturers only support the eMBB service, and the design of the frame structure is only suitable for the eMBB service.

Therefore, the current data frame structure supporting the eMBB service cannot meet the transmission requirement of the URLLC service.

Disclosure of Invention

In view of the foregoing, there is a need to provide a method, an apparatus, a computer device, and a storage medium for configuring a data frame structure that can meet the transmission requirements of URLLC traffic.

In a first aspect, a method for configuring a data frame structure includes:

determining configuration parameters according to the ratio of each service type in the URLLC service of the current cell; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

and sending the configuration parameters to the user terminal so that the user terminal transmits URLLC service data according to the data frame structure indicated by the configuration parameters.

In one embodiment, the configuration parameters include a target flexible time slot number, a target uplink time slot number, and a target downlink time slot number.

In one embodiment, the method further comprises:

sending a broadcast message; the broadcast message is used to indicate the frame period of the data frame structure and the position arrangement of various slots in the data frame structure.

In one embodiment, if the URLLC service includes a low-delay service, determining a configuration parameter according to a duty ratio of each service type in the URLLC service of the current cell, includes:

determining a target flexible time slot number corresponding to the occupation ratio of the low-delay service in the URLLC service according to the corresponding relation between the occupation ratio of the low-delay service and the flexible time slot number;

and determining the number of target uplink time slots and the number of target downlink time slots according to the number of the target flexible time slots and the total number of the time slots in the frame period of the data frame structure.

In one embodiment, if the URLLC service includes a high-reliability service, determining a configuration parameter according to a duty ratio of each service type in the URLLC service of the current cell, includes:

determining a target uplink time slot number corresponding to the high-reliability service occupation ratio in the URLLC service according to the corresponding relation between the high-reliability service occupation ratio and the uplink time slot number;

and determining the target flexible time slot number and the target downlink time slot number according to the target uplink time slot number and the total number of time slots in the frame period of the data frame structure.

In one embodiment, the configuration parameters further include the number of uplink symbols, the number of downlink symbols, and the number of flexible symbols in the target flexible timeslot.

In one embodiment, the method further comprises:

and determining the flexible symbol number, the uplink symbol number and the downlink symbol number according to the load proportion of the uplink service and the downlink service of the current cell.

In one embodiment, the method further comprises:

sending a scheduling instruction; the scheduling instruction is used for indicating the resource position for scheduling the URLLC service based on the data frame structure.

In one embodiment, if the URLLC service includes a low-latency service, the resource location is a downlink symbol location in a flexible timeslot in a data frame structure; the resource corresponding to the downlink symbol position is used for receiving the data of the low-delay service;

if the URLLC service contains the high-reliability service, the resource positions are a plurality of uplink timeslot positions for repeatedly transmitting data of the high-reliability service in the data frame structure.

In one embodiment, the configuration parameters further include: the number of symbols for uplink and downlink switching; the number of uplink and downlink switching symbols is used for indicating the number of switching symbols for switching the user terminal from downlink reception to uplink transmission.

In one embodiment, the configuration parameters further include: the number and location of invalid symbols; the invalid symbols are uplink symbols for transmitting other uplink channels, and the other uplink channels comprise Sounding Reference Signals (SRS), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH).

In one embodiment, the position arrangement includes position arrangements of an uplink time slot, a downlink time slot and a flexible time slot.

In one embodiment, sending the configuration parameters to the user terminal includes:

and carrying the configuration parameters in an RRC connection reconfiguration message and sending the RRC connection reconfiguration message to the user terminal.

In a second aspect, a method for configuring a data frame structure, the method includes:

receiving configuration parameters sent by a base station; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

and transmitting URLLC service data according to the data frame structure indicated by the configuration parameters.

In one embodiment, the configuration parameters include a target flexible time slot number, a target uplink time slot number, a target downlink time slot number, and an uplink symbol number, a downlink symbol number, and a flexible symbol number in the target flexible time slot.

In one embodiment, the method further comprises:

receiving a broadcast message; the broadcast message is used to indicate the frame period of the data frame structure and the position arrangement of various slots in the data frame structure.

In one embodiment, the transmitting URLLC service data according to the data frame structure indicated by the configuration parameter includes:

determining the positions of each target uplink time slot, each target downlink time slot and each target flexible time slot in a data frame structure according to the position arrangement of each time slot in the data frame structure and the target flexible time slot number, the target uplink time slot number and the target downlink time slot number;

determining the position of a flexible symbol, the position of an uplink symbol and the position of a downlink symbol in each target flexible time slot according to the number of the flexible symbols, the number of the uplink symbols and the number of the downlink symbols;

and transmitting URLLC service data according to the position of each target uplink time slot, the position of each target downlink time slot, the position of each target flexible time slot, the position of each flexible symbol, the position of each uplink symbol and the position of each downlink symbol.

In one embodiment, the method further comprises:

receiving a scheduling instruction; the scheduling instruction is used for indicating the resource position for scheduling the URLLC service based on the data frame structure.

In one embodiment, the method further comprises:

analyzing the scheduling instruction to obtain a resource position in the scheduling instruction;

if the resource position is a downlink symbol position in a flexible time slot in a data frame structure, receiving data of the low-delay service on a resource corresponding to the downlink symbol position;

and if the resource position is an uplink time slot position used for repeatedly transmitting the data of the high-reliability service in the data frame structure, repeatedly uploading the data of the high-reliability service on resources corresponding to a plurality of uplink time slot positions.

In one embodiment, the method further comprises:

and determining the positions of the uplink and downlink switching symbols according to the number of the uplink and downlink switching symbols and the position of the last downlink symbol in the target flexible time slot.

In a third aspect, an apparatus for configuring a data frame structure, the apparatus comprising:

the determining module is used for determining configuration parameters according to the ratio of each service type in the URLLC service of the current cell; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

and the sending module is used for sending the configuration parameters to the user terminal so that the user terminal transmits the URLLC service data according to the data frame structure indicated by the configuration parameters.

In a fourth aspect, an apparatus for configuring a data frame structure, the apparatus comprising:

the receiving module is used for receiving the configuration parameters sent by the base station; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

and the transmission module is used for transmitting the URLLC service data according to the data frame structure indicated by the configuration parameters.

In a fifth aspect, a computer device comprises a memory storing a computer program and a processor implementing the method of the first aspect when the processor executes the computer program.

In a sixth aspect, a computer device comprises a memory storing a computer program and a processor implementing the method of the second aspect when the processor executes the computer program.

Seventh aspect, a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect described above.

In an eighth aspect, a computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the method of the second aspect described above.

The configuration method, the configuration device, the computer equipment and the storage medium of the data frame structure comprise the following steps: and the base station determines configuration parameters according to the ratio of each service type in the URLLC service of the current cell and sends the configuration parameters to the user terminal so that the user terminal transmits URLLC service data according to the data frame structure indicated by the configuration parameters. Because the occupation ratios of different URLLC service types correspond to different configuration parameters, namely, the occupation ratios of different URLLC service types correspond to different data frame structures, when the user terminal transmits the URLLC services of different types according to the data frame structure indicated by the configuration parameters, the transmission can be performed based on the most matched data frame structure, so that the transmission efficiency and the transmission reliability of the URLLC service are improved, for example, if an uplink highly reliable service is transmitted, the data frame structure that most closely matches the high-reliability service may be configured by the configuration parameters, so that when data is transmitted based on the matched data frame structure, the reliable transmission of the high-reliability service can be ensured, if the low-delay service is transmitted, the data frame structure which is most matched with the low-delay service can be configured through the configuration parameters, and then the low-delay transmission of the low-delay service can be ensured when the data is transmitted based on the matched data frame structure. Therefore, the configuration method of the data frame structure provided by the embodiment greatly meets the transmission requirement of the URLLC service.

Drawings

FIG. 1 is a diagram of an application of a configuration method of a data frame structure in one embodiment;

FIG. 2 is a flow diagram illustrating a method for configuring a data frame structure according to one embodiment;

FIG. 3 is a diagram illustrating the structure of a data frame according to an embodiment;

FIG. 4 is a flowchart illustrating an implementation manner of S101 in the embodiment of FIG. 2;

FIG. 5 is a diagram illustrating the structure of a data frame according to an embodiment;

FIG. 6 is a flowchart illustrating an implementation manner of S101 in the embodiment of FIG. 2;

FIG. 7 is a diagram illustrating the structure of a data frame according to an embodiment;

FIG. 8 is a block diagram illustrating the structure of a data frame according to one embodiment;

FIG. 9 is a flow diagram illustrating a method for configuring a data frame structure according to one embodiment;

FIG. 10 is a flowchart illustrating an implementation manner of S402 in the embodiment of FIG. 9;

FIG. 11 is a flowchart illustrating a method for configuring a data frame structure according to an embodiment;

FIG. 12 is a flow diagram that illustrates a method for configuring a data frame structure, according to one embodiment;

FIG. 13 is a flowchart illustrating a method for configuring a data frame structure according to an embodiment;

FIG. 14 is a block diagram showing the configuration of a data frame structure in one embodiment;

FIG. 15 is a block diagram showing the configuration of a data frame structure in one embodiment;

FIG. 16 is a diagram illustrating an internal structure of a computer device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The configuration method of the data frame structure provided by the application can be applied to the application system shown in fig. 1. In the system, a base station communicates with at least one user terminal via a mobile network. And data interaction between the uplink service and the downlink service is carried out between the base station and each user terminal. The user terminal may be, but is not limited to, various electronic communication devices such as a personal computer, a notebook computer, a smart phone, a tablet computer, and a portable wearable device, and the base station may be various types of base stations.

Those skilled in the art will appreciate that the system architecture shown in fig. 1 is merely a block diagram of some of the structures associated with the present solution and is not intended to limit the application to which the present solution may be applied, and that a particular application may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, as shown in fig. 2, a method for configuring a data frame structure is provided, which is described by taking the method as an example for being applied to the base station in fig. 1, and includes the following steps:

s101, determining configuration parameters according to the ratio of each service type in the URLLC service of the current cell; the configuration parameter is used for indicating the data frame structure for transmitting URLLC service data.

The URLLC service is a high-reliability low-delay type service, and is one of three 5G application services. URLLC traffic includes high reliability traffic and low latency traffic. The data frame structure is a data frame structure predefined by the base station and used for transmitting URLLC service data, and the configuration parameters may include a frame period of the data frame structure, an uplink time slot number, a downlink time slot number, a flexible time slot number, an uplink symbol number, a downlink symbol number, a flexible symbol number, and other parameters in the data frame structure.

Specifically, before the base station performs service data interaction with each user terminal in the current cell, the base station may determine a configuration parameter according to a ratio of each service type in the URLLC service of the current cell, that is, determine the configuration parameter according to a ratio of a user terminal of a high-reliability service to a total user terminal of the current cell, or determine the configuration parameter according to a ratio of a user terminal of a low-delay service to a total user terminal of the current cell. Optionally, when determining the configuration parameters, the ratio of the uplink time slot to the downlink time slot in the data frame structure may be specifically determined, and then the configuration parameters including the number of the uplink time slots, the number of the downlink time slots, and the number of the flexible time slots are determined according to the ratio of the uplink time slot to the downlink time slot, and by combining the frame period of the data frame structure and the position arrangement of various time slots in the data frame structure.

And S102, sending the configuration parameters to the user terminal so that the user terminal transmits URLLC service data according to the data frame structure indicated by the configuration parameters.

Specifically, after determining the configuration parameters based on the above steps, the base station may send the configuration parameters to the user terminal. The base station may carry the configuration parameter in a broadcast message and send the broadcast message to the user terminal, or the base station may carry the configuration parameter in a connection Reconfiguration message (rrcconnection Reconfiguration) and send the connection Reconfiguration message (rrcconnection Reconfiguration) to the user terminal. And after receiving the configuration parameters, the user terminal can transmit URLLC service data according to the data frame structure indicated by the configuration parameters. Optionally, the user terminal may receive the low-latency service according to the downlink symbol in the data frame structure indicated by the configuration parameter, and upload the high-reliability service according to the uplink timeslot in the data frame structure indicated by the configuration parameter. Optionally, the user terminal may receive the low-latency URLLC service according to the downlink timeslot in the data frame structure indicated by the configuration parameter, and upload the high-reliability URLLC service according to the uplink timeslot in the data frame structure indicated by the configuration parameter.

In the method for configuring a data frame structure provided in the foregoing embodiment, the base station determines the configuration parameter according to the duty ratio of each service type in the URLLC service of the current cell, and sends the configuration parameter to the user terminal, so that the user terminal transmits URLLC service data according to the data frame structure indicated by the configuration parameter. Because the occupation ratios of different URLLC service types correspond to different configuration parameters, namely, the occupation ratios of different URLLC service types correspond to different data frame structures, when the user terminal transmits the URLLC services of different types according to the data frame structure indicated by the configuration parameters, the transmission can be performed based on the most matched data frame structure, so that the transmission efficiency and the transmission reliability of the URLLC service are improved, for example, if an uplink highly reliable service is transmitted, the data frame structure that most closely matches the high-reliability service may be configured by the configuration parameters, so that when data is transmitted based on the matched data frame structure, the reliable transmission of the high-reliability service can be ensured, if the low-delay service is transmitted, the data frame structure which is most matched with the low-delay service can be configured through the configuration parameters, and then the low-delay transmission of the low-delay service can be ensured when the data is transmitted based on the matched data frame structure. Therefore, the configuration method of the data frame structure provided by the embodiment greatly meets the transmission requirement of the URLLC service.

Optionally, the configuration parameters include a target flexible timeslot number, a target uplink timeslot number, and a target downlink timeslot number. The target flexible time slot number is the number of the target flexible time slots, the target uplink time slot number is the number of the target uplink time slots, and the target downlink time slot number is the number of the target downlink time slots. The target flexible time slot number, the target uplink time slot number and the target downlink time slot number are the flexible time slot number, the uplink time slot number and the downlink time slot number which are determined by the base station according to the ratio of each service type in the URLLC service of the current cell.

In practical applications, the base station may also send a broadcast message to notify the user terminal of the frame period of the data frame structure and the position arrangement of various timeslots in the data frame structure. The position arrangement comprises position arrangement of an uplink time slot, a downlink time slot and a flexible time slot.

Specifically, the base station may send a broadcast message before performing the step S101, where the broadcast message may be a SIB1 message. The broadcast message SIB1 may be configured by configuring the frame period of the data frame structure in TDD-UL-DL-Pattern mode in the cell TDD-UL-DL-ConfigCommon and the position arrangement of various timeslots. For example, as shown in fig. 3, taking TDD mode data frame structure as 7D1S2U as an example, the base station may configure a frame structure period DL-UL-TransmissionPeriodicity of 5ms in TDD-UL-DL-Pattern, configure a downlink Slot number nrofDownlinkSlots as 7 (Slot 0-Slot6 in the figure), an uplink Slot number nrofUplinkSlots as 2 (Slot 8-Slot9 in the figure), a Flexible Slot number flexislotslots as 1 (Slot 7 in the figure), a downlink symbol number nrofDownlinkSymbols as 6 in Flexible Slot S (Slot 0-Sym5 in the figure), an uplink number nrofunlinksymbols as 4 (Sym 10-Sym13 in the figure), and a Flexible symbol number flexiples as 4 (Sym 6-Sym 6 in the figure). It should be noted that the example in fig. 3 is only illustrated by taking TDD mode data frame structure 7D1S2U as an example, and the above method for constructing the data frame structure is also applicable to other TDD mode data frame structures, for example, DDDSUUDDDD, S = 6D: 4G: 4U; DDDSU, S = 10D: 2G: 2U; DSUU, S =12D: 2G; DSS, S =12D: 2G; SU, S =12D: 2G.

In an embodiment, the URLLC service may include a low-latency service and a high-reliability service, and when the URLLC service includes a low-latency service, the present application provides a specific implementation manner of the foregoing S101, as shown in fig. 4, where the foregoing S101 "determines a configuration parameter according to a duty ratio of each service type in the URLLC service of a current cell," includes:

s201, according to the corresponding relation between the occupation ratio of the low-delay service and the flexible time slot number, determining the target flexible time slot number corresponding to the occupation ratio of the low-delay service in the URLLC service.

The occupation ratio of the low-delay service represents the proportion of the user terminal of the low-delay service in the total user terminal of the current cell. The corresponding relation between the occupation ratio of the low-delay service and the number of the flexible time slots can be predetermined by the base station, and the higher the occupation ratio of the low-delay service is, the more the number of the corresponding flexible time slots is. For example, if all URLLC services in a cell are low-latency services, that is, the percentage of the low-latency services is 100%, the base station may determine each timeslot in the data frame structure as a flexible timeslot. For example, taking the data frame structure 7D1S2U as an example, as shown in fig. 5, each slot in the data frame structure 7D1S2U is a flexible slot S.

Specifically, when the base station determines the ratio of the low-delay service in the URLLC service according to the distribution of each service type in the current cell, the base station may find the flexible time slot number corresponding to the ratio of the low-delay service in the URLLC service by querying the corresponding relationship between the ratio of the low-delay service and the flexible time slot number, and determine the flexible time slot number as the target flexible time slot number.

S202, determining the number of target uplink time slots and the number of target downlink time slots according to the number of target flexible time slots and the total number of time slots in a frame period of the data frame structure.

After the base station determines the target flexible time slot number, the base station can further flexibly configure the target uplink time slot number and the target downlink time slot number according to the total number of the time slots in the frame period of the data frame structure. For example, taking TDD mode data frame structure 7D1S2U as an example, the frame period of the data frame structure is 5ms, and the total number of timeslots in the frame period is 10. When the base station determines that the target flexible time slot number is 8 according to the percentage of the low-latency service (assuming 80%), the base station may flexibly configure the remaining 2 time slots as a target uplink time slot U and a target downlink time slot D, that is, configure the target uplink time slot number as 1 and the target downlink time slot number as 1. For another example, when the base station determines that the number of the target flexible timeslots is 6 according to the duty ratio of the low latency traffic (assuming 60%), the base station may flexibly configure the remaining 4 timeslots as 3 target uplink timeslots U and 1 target downlink timeslot D, may also configure as 2 target uplink timeslots U and 2 target downlink timeslots D, and may also configure as 1 target uplink timeslot U and 3 target downlink timeslots D. It can be understood that, after the base station determines the target flexible timeslot number, the configuration of the target uplink timeslot number and the target downlink timeslot number is not limited in this embodiment.

In the above embodiment, because the target flexible timeslot number is determined according to the duty ratio of the low latency service in the URLLC service, the higher the duty ratio of the low latency service is, the more the corresponding target flexible timeslot number is, and the flexible timeslot can implement that the downlink symbol (the D symbol in the S timeslot in fig. 5) in the current timeslot receives the low latency service, and the uplink symbol (the U symbol in the S timeslot in fig. 5) feeds back information to the base station, thereby achieving the target of low latency transmission of the low latency service.

In an embodiment, when the URLLC service includes a highly reliable service, this embodiment provides a specific implementation manner of the foregoing S101, as shown in fig. 6, where "determining, by the S101," a configuration parameter according to a duty ratio of each service type in the URLLC service of the current cell "includes:

s301, according to the corresponding relation between the occupation ratio of the high-reliability service and the uplink time slot number, determining the target uplink time slot number corresponding to the occupation ratio of the high-reliability service in the URLLC service.

The occupation ratio of the high-reliability service represents the proportion of the user terminal of the high-reliability service in the total user terminals of the current cell. The corresponding relationship between the occupation ratio of the high-reliability service and the number of the uplink time slots can be predetermined by the base station, and the higher the occupation ratio of the high-reliability service is, the more the number of the corresponding uplink time slots is. That is, when the percentage of the high reliable service is high, the base station may configure a larger number of uplink timeslots in the data frame structure, for example, taking the data frame structure 7D1S2U as an example, if the percentage of the high reliable service in the cell is 40%, the base station may configure 4 uplink timeslots in the 7D1S2U data frame structure. For another example, if the percentage of the high reliable service in the cell is 50%, the base station may configure 5 uplink timeslots in the 7D1S2U data frame structure.

Specifically, when the base station determines the ratio of the high-reliability service in the URLLC service according to the distribution of each service type in the current cell, the base station can find the uplink timeslot number corresponding to the ratio of the high-reliability service in the URLLC service by querying the correspondence between the ratio of the high-reliability service and the uplink timeslot number, and determine the uplink timeslot number as the target uplink timeslot number.

S302, according to the number of target uplink time slots and the total number of time slots in the frame period of the data frame structure, the number of target flexible time slots and the number of target downlink time slots are determined.

After the base station determines the target uplink time slot number, the base station can further flexibly configure the target flexible time slot number and the target downlink time slot number according to the total number of time slots in the frame period of the data frame structure. For example, taking TDD mode data frame structure 7D1S2U as an example, the frame period of the data frame structure is 5ms, and the total number of timeslots in the frame period is 10. When the base station determines that the number of target uplink timeslots is 4 according to the percentage of the high reliable traffic (40%), the base station may flexibly configure the remaining 6 timeslots as the target flexible timeslot and the target downlink timeslot, such as 5 target downlink timeslots D and 1 target flexible timeslot U (as shown in fig. 7). For another example, when the base station determines that the number of uplink timeslots is 5 according to the percentage of high reliable traffic (50%), the base station may flexibly configure the remaining 5 timeslots as 2 target downlink timeslots D and 3 target flexible timeslots U, and may also flexibly configure the remaining 5 timeslots as 5 target downlink timeslots D. It can be understood that, after the base station determines the target uplink timeslot number, the configuration of the target flexible timeslot number and the target downlink timeslot number is not limited in this embodiment.

In the above embodiment, because the target uplink timeslot number is determined according to the occupation ratio of the high-reliability service in the URLLC service, the higher the occupation ratio of the high-reliability service is, the more the corresponding target uplink timeslot number is, so that the high-reliability service can be transmitted by repeating the symbol number and the repeating timeslot number during uplink transmission, thereby ensuring reliable transmission of the high-reliability service.

Optionally, the configuration parameters further include an uplink symbol number, a downlink symbol number, and a flexible symbol number in the target flexible timeslot. Specifically, when the base station determines the target uplink timeslot number, the target downlink timeslot number, and the target flexible timeslot number in the configuration parameters, the base station may further determine the uplink symbol number, the downlink symbol number, and the flexible symbol number in each flexible timeslot according to the load proportion of the uplink service and the downlink service of the current cell.

In practical applications, the conventional configuration of the number of uplink symbols in a flexible timeslot is generally 6, the conventional configuration of the number of downlink symbols is generally 4, and the conventional configuration of the number of flexible symbols is generally 4 (such as the configuration shown in fig. 5). Besides conventional configuration, the base station can also configure the uplink symbol number, the downlink symbol number and the flexible symbol number in each flexible time slot according to the load proportion of the uplink service and the downlink service of the current cell. When the base station is configured, the user terminal may be specifically notified of the uplink symbol number nrofUplinkSymbols (Sym 0-Sym5 in fig. 5), the downlink symbol number nrofdownlinlnksymbols (Sym 10-Sym13 in fig. 5), and the flexible symbol number flexiblemymbols (Sym 6-Sym9 in fig. 5) in each flexible timeslot through a TDD-UL-DL-SlotConfig information element in a TDD-UL-DL-ConfigDedicated information element in the RRC connection configuration message.

In one embodiment, after the base station completes the step S102, the base station sends a scheduling instruction to the ue; the scheduling instruction is used for indicating the resource position for scheduling the URLLC service based on the data frame structure.

The resource position may include one of a position of an uplink timeslot, a position of a downlink timeslot, a position of a flexible timeslot, a position of an uplink symbol in the flexible timeslot, a position of a flexible symbol, and a position of a downlink symbol. The resource position is determined by the base station according to the occupation ratio of various service types in the URLLC service, if the URLLC service contains a low-delay service with a higher occupation ratio, the base station can determine the position of the downlink symbol in the flexible time slot as the resource position for receiving the low-delay service, and correspondingly determine the position of the uplink symbol in the same flexible time slot as the resource position for the feedback information. If the URLLC service contains a highly reliable service with a high occupancy rate, the base station may determine the position of the uplink timeslot as a resource position for uploading the highly reliable service.

Specifically, after the base station determines the configuration parameters of the data frame structure, it may send a call instruction to notify the user terminal to schedule the resource location of the URLLC service based on the data frame structure, so that the user terminal receives the downlink URLLC service at the resource location of the URLLC service, or uploads the uplink URLLC service.

In an embodiment, the present application further provides a method for a base station to schedule a URLLC service in different application scenarios, for example, in a first application scenario, when the URLLC service includes a low-delay service, a resource position is a downlink symbol position in a flexible timeslot in a data frame structure; and the resource corresponding to the downlink symbol position is used for receiving the data of the low-delay service.

In the application scenario, the base station schedules the low-delay service in the URLLC service to the flexible time slot S in the data frame structure. That is, the base station configures, in DCI Format1_2, a time-frequency domain position where the user equipment schedules a Physical Downlink Shared Channel (PDSCH), that is, a resource position where the user equipment schedules a low-latency service. In this embodiment, the base station configures the flexible time slot in the data frame structure as a resource location for scheduling the low latency service, that is, when the user terminal receives the call instruction, the user terminal may receive downlink URLLC service data at a downlink symbol location in the flexible time slot in the data frame structure, and correspondingly feed back HARQ-ACK codebook information at an uplink symbol location in the flexible time slot, where the HARQ-ACK codebook information is feedback information of whether the user terminal successfully receives the low latency service. It should be noted that, when the user terminal monitors the PDCCH, the user terminal demodulates DCI configuration information in the PDCCH, and then determines a resource location scheduled by the PDSCH according to the DCI configuration information, thereby generating HARQ-ACK codebook information. The DCI configuration information explicitly indicates that a low-latency service in the URLLC service is scheduled in a flexible time slot S in a data frame structure, and compared with the problem of a longer feedback time caused by a scheduling method in which the low-latency service is scheduled in a downlink time slot in the data frame structure and HARQ-ACK codebook information is returned in the uplink time slot in the conventional art, the scheduling method provided in this embodiment can enable the low-latency service to be transmitted and fed back in time in the same flexible time slot, thereby achieving the purpose of low-latency service transmission.

In the second application scenario, when the URLLC service includes a high-reliability service, the resource location is a plurality of uplink timeslot locations for repeatedly transmitting data of the high-reliability service in the data frame structure.

In the application scenario, the base station schedules a high-reliability service in the URLLC service in an uplink timeslot U in the data frame structure. That is, the base station configures, in DCI Format1_2, a time-frequency domain position where the user equipment schedules a Physical Downlink Shared Channel (PDSCH), that is, a resource position where the user equipment schedules a high-reliability service. In this embodiment, the base station configures the uplink timeslot in the data frame structure as a resource location for scheduling a high-reliability service, that is, when the user terminal receives a call instruction, the user terminal may transmit the high-reliability service in the uplink timeslot in the data frame structure, because the data frame structure has a plurality of uplink timeslots, the user terminal may further repeat transmission on the number of symbols in each uplink timeslot by using a symbol-level repetition policy according to the reliability of the high-reliability service, or repeat transmission on a plurality of uplink timeslots by using a slot-level repetition policy. The method greatly improves the reliability of high-reliability service transmission.

In an embodiment, the configuration method of the data frame structure provided in the present application may further configure the number of uplink and downlink switching symbols in the data frame structure to indicate the user terminal to determine the specific position of the uplink and downlink switching symbols, where the configuration parameter further includes the number of uplink and downlink switching symbols, and the number of uplink and downlink switching symbols is used to indicate the number of switching symbols for the user terminal to switch from downlink reception to uplink transmission.

Specifically, the base station may configure a number of invoke symbols for dl-UL-Switching in a PUSCH-Config cell of the RRC connection reconfiguration message to indicate the number of uplink and downlink Switching symbols (i.e., the number of symbols occupied by Gap in fig. 5), where the value range of the number of uplink and downlink Switching symbols is {1, 2, 3, 4 }. After receiving the configuration parameters containing the number of uplink and downlink switching symbols sent by the base station, the user terminal can determine the position of the uplink and downlink switching symbols according to the number of the uplink and downlink switching symbols and the position of the last downlink symbol in the flexible time slot in the data frame structure. For example, taking the data frame structure shown in fig. 5 as an example, when the number of uplink and downlink switching symbols received by the user terminal is 4, the user terminal determines 4 flexible symbols after the position of the last downlink symbol Sym5 in fig. 5 as uplink and downlink switching symbols (Sym 6-Sym9 in fig. 5). For another example, if the number of uplink and downlink switching symbols received by the ue is 2, the ue determines 2 flexible symbols after the position of the last downlink symbol Sym5 in fig. 5 as uplink and downlink switching symbols (Sym 6-Sym 7 in fig. 5). It should be noted that, the number of flexible symbols in the existing data frame structure is all used as the number of uplink and downlink switching symbols, and the number of uplink and downlink switching symbols is fixed and unchanged, for example, 4 flexible symbols F in fig. 3 are all used as uplink and downlink switching symbols, but the data frame structure provided by the present application can meet the URLLC service requirement, and the flexible symbols in the corresponding data frame structure can be used as symbols for transmitting the URLLC service, so it is necessary to specify which flexible symbols are used as uplink and downlink switching symbols, so that the user terminal determines the specific positions of the uplink and downlink switching symbols, so as to avoid confusing the functions of the flexible symbols. Therefore, the configuration method of the data frame structure has the function of designating the uplink and downlink switching symbols, and further improves the transmission efficiency when the user terminal transmits the URLLC service based on the data frame structure. In addition, by introducing the number of uplink and downlink switching symbols, the user terminal can prepare switching preparation for receiving uplink transmission from downlink in advance, so that the base station and the user terminal keep synchronous at the transmitting and receiving ends.

In an embodiment, the configuration method of the data frame structure provided in the present application may further configure the number and the position of the invalid symbols in the data frame structure, so that the number of symbols in the uplink slot in the data frame structure is not fully occupied by URLLC service data, so as to reserve resources for other uplink channels, and thus the configuration parameters further include the number and the position of the invalid symbols, where the invalid symbols are uplink symbols for transmitting other uplink channels, and the other uplink channels include a sounding reference signal SRS, a physical uplink control channel PUCCH, and a physical random access channel PRACH.

Specifically, the base station may configure the number and position of the invalid symbols in the invalid symbol pattern invalidsymbol pattern cell in the RRC connection reconfiguration message. After receiving the configuration parameters containing the number and the positions of the invalid symbols sent by the base station, the user terminal can determine the number and the positions of the invalid symbols in the data frame structure. For example, taking the data frame structure shown in fig. 8 as an example, the base station may configure the last two uplink symbols (Sym 12 and Sym 13) in the flexible slot S as invalid symbols U0 and the last two uplink symbols (Sym 12 and Sym 13) in the uplink slot U as invalid symbols U0. It should be noted that the time slot in which the invalid symbol U0 is located may be flexibly configured, for example, the base station may configure the invalid symbol U0 in all uplink time slots in the data frame structure, or configure the invalid symbol U0 in part of the uplink time slots, the base station may configure all uplink symbols in the flexible time slots in the data frame structure as the invalid symbol U0, or configure part of the uplink symbols in the flexible time slots in the data frame structure as the invalid symbol U0. The position of the invalid symbol in each time slot can be flexibly configured. This embodiment is not limited to this. The invalid symbol cannot be used for transmitting Physical Uplink Shared Channel (PUSCH) service data, is a reserved resource location, and is used for reserving for other uplink channel transmission, so that corresponding resources can be prevented from being occupied by an uplink repeated PUSCH service.

Fig. 2-fig. 8 are the method steps implemented by the base station side, and the implementation process of the user terminal side is described below by taking fig. 9-fig. 10 as an example.

In an embodiment, as shown in fig. 9, a method for configuring a data frame structure is provided, which is described by taking the method as an example for being applied to the user terminal in fig. 1, and includes the following steps:

s401, receiving configuration parameters sent by a base station; the configuration parameter is used for indicating the data frame structure for transmitting URLLC service data.

S402, URLLC service data is transmitted according to the data frame structure indicated by the configuration parameters.

This embodiment corresponds to the foregoing steps of S101-S102, and relates to a process in which the user terminal transmits URLLC service data according to a data frame structure indicated by the configuration parameters after receiving the configuration parameters, and the description of the step is consistent with the description of the foregoing steps S101-S102, for details, please refer to the description of the foregoing steps S101-S102, which is not described herein again.

In one embodiment, the configuration parameters include a target flexible time slot number, a target uplink time slot number, a target downlink time slot number, and an uplink symbol number, a downlink symbol number, and a flexible symbol number in the target flexible time slot. For a description of this embodiment, refer to the description of configuration parameters in the foregoing embodiments, which are not repeated herein.

In one embodiment, the method of the embodiment of fig. 9 further comprises: receiving a broadcast message; the broadcast message is used to indicate the frame period of the data frame structure and the position arrangement of various slots in the data frame structure. The position arrangement comprises position arrangement of an uplink time slot, a downlink time slot and a flexible time slot. For a description of the embodiment, refer to the description of the process of receiving the broadcast message in the foregoing embodiment, which is not described herein again.

In an embodiment, the present application further provides a specific implementation manner of the foregoing S402, as shown in fig. 10, the foregoing S402 "transmitting URLLC service data according to a data frame structure indicated by the configuration parameter" includes:

s501, according to the position arrangement of various time slots in the data frame structure, the number of target flexible time slots, the number of target uplink time slots and the number of target downlink time slots, the positions of the target uplink time slots, the target downlink time slots and the target flexible time slots in the data frame structure are determined.

When the user terminal receives the configuration parameters, the target flexible time slot number, the target uplink time slot number and the target downlink time slot number can be determined, and then the positions of each target uplink time slot, each target downlink time slot and each target flexible time slot in the data frame structure are further determined according to the position arrangement of each time slot in the data frame structure obtained through the broadcast message. For example, the data frame structure shown in fig. 7 includes 5 target downlink timeslots D, 1 target flexible timeslot S, and 4 target uplink timeslots U.

S502, according to the number of the flexible symbols, the number of the uplink symbols and the number of the downlink symbols, the positions of the flexible symbols, the positions of the uplink symbols and the positions of the downlink symbols in each target flexible time slot are determined.

When the user terminal determines the target flexible time slot number based on the step S501, the position of the flexible symbol, the position of the uplink symbol, and the position of the downlink symbol in each target flexible time slot may be further determined according to the flexible symbol number, the uplink symbol number, and the downlink symbol number in the configuration parameters. For example, fig. 7 shows a data frame structure, where the target flexible timeslot S includes 6 downlink symbols, 4 flexible symbols, and 4 uplink symbols.

And S503, transmitting URLLC service data according to the position of each target uplink time slot, the position of each target downlink time slot, the position of each target flexible time slot, the position of each flexible symbol, the position of each uplink symbol and the position of each downlink symbol.

After the user terminal determines the position of each target uplink time slot, the position of each target downlink time slot, the position of each target flexible time slot, the position of each flexible symbol, the position of each uplink symbol, and the position of each downlink symbol, the user terminal can schedule and transmit URLLC service data at the positions of the time slots.

In one embodiment, the method of the embodiment of fig. 9 further comprises: receiving a scheduling instruction; the scheduling instruction is used for indicating the resource position for scheduling the URLLC service based on the data frame structure. For a description of this embodiment, refer to the description of the process of sending the scheduling command to the base station in the foregoing embodiment, which is not described herein again.

In an embodiment, the present application provides a specific implementation manner that after a base station sends a scheduling instruction, a user terminal schedules a URLLC service, as shown in fig. 11, the implementation manner includes:

s601, analyzing the scheduling instruction and obtaining the resource position in the scheduling instruction.

The scheduling instruction may be a scheduling instruction that is monitored by the user terminal on the PDCCH, for example, an instruction of a DCI scheduling format, where the scheduling instruction instructs the base station to schedule a resource location of the URLLC service based on the data frame structure. Specifically, after the user terminal receives the scheduling instruction, the user terminal may further parse the scheduling instruction to parse the resource location in the scheduling instruction.

S602, if the resource location is a downlink symbol location in a flexible timeslot in a data frame structure, receiving data of the low latency service on a resource corresponding to the downlink symbol location.

When the resource position analyzed by the user terminal is the downlink symbol position in the flexible time slot in the data frame structure, it indicates that the downlink low-delay service is transmitted at this time, so in the application scenario, the user terminal receives the data of the low-delay service on the resource corresponding to the analyzed downlink symbol position, and correspondingly, returns feedback information on the resource corresponding to the uplink symbol position in the flexible time slot to notify the base station whether the low-delay service is successfully received. Because the user terminal receives the low-delay service in the same flexible time slot and returns the feedback information, the purpose of low-delay transmission is achieved.

S603, if the resource location is an uplink timeslot location used for repeatedly transmitting data of the high reliable service in the data frame structure, repeatedly transmitting the data of the high reliable service on resources corresponding to the multiple uplink timeslot locations.

When the resource position analyzed by the user terminal is an uplink time slot position used for repeatedly transmitting data of the high-reliability service in the data frame structure, it is indicated that the uplink high-reliability service is transmitted at the moment, so that in the application scenario, the user terminal uploads the data of the high-reliability service on the resource corresponding to the analyzed uplink time slot position. Optionally, the user terminal repeatedly uploads the data of the high-reliability service on the resource corresponding to the analyzed positions of the plurality of uplink timeslots, so as to ensure reliable transmission of the high-reliability service.

In one embodiment, the configuration parameters further include: the number of symbols for uplink and downlink switching; the number of uplink and downlink switching symbols is used for indicating the number of switching symbols for switching the user terminal from downlink reception to uplink transmission. For a description of the embodiment, refer to the description of the type of configuration parameters in the foregoing embodiments, which are not repeated herein.

In an embodiment, the present application provides a specific implementation manner that when a user terminal receives an uplink and downlink switching symbol number configured by a base station, the user terminal determines a position of an uplink and downlink switching symbol according to the uplink and downlink switching symbol number, where the specific implementation manner specifically includes: and determining the positions of the uplink and downlink switching symbols according to the number of the uplink and downlink switching symbols and the position of the last downlink symbol in the target flexible time slot. For the description of the process, refer to the description of the foregoing embodiments, which are not repeated herein.

In one embodiment, the configuration parameters further include: the number and location of invalid symbols; the invalid symbols are uplink symbols for transmitting other uplink channels, and the other uplink channels comprise Sounding Reference Signals (SRS), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH). For a description of the embodiment, refer to the description of the type of configuration parameters in the foregoing embodiments, which are not repeated herein.

By integrating all the above embodiments, the present application also provides two signaling interaction methods between a base station and a user terminal, where the first method configures a data frame structure of a URLLC downlink low latency service for the base station, and the user terminal transmits low latency service data based on this type of data frame structure, as shown in fig. 12, the interaction method between the base station and the user terminal includes:

s1011, the base station configures the frame period of the data frame structure and the position arrangement of various time slots in the data frame structure, and sends the broadcast message.

S1012, the base station configures the target flexible time slot number, the target uplink time slot number, the target downlink time slot number, the uplink symbol number, the downlink symbol number, the flexible symbol number, the uplink and downlink switching symbol number, the invalid symbol number and the position in the data frame structure according to the occupation ratio of various services in the URLLC service. The base station transmits a rrcreeconfiguration message.

S1013, the base station sends a scheduling instruction; and the scheduling instruction is used for indicating the user terminal to schedule the resource position of the URLLC service based on the data frame structure.

S1014, the base station determines the position of the target flexible time slot, the position of the target uplink time slot, the position of the target downlink time slot, the position of the uplink symbol, the position of the downlink symbol, the position of the flexible symbol, the position of the uplink switching symbol and the position of the invalid symbol according to the frame period of the received data frame structure, the position arrangement of various time slots in the data frame structure, the target flexible time slot number, the target uplink time slot number, the target downlink time slot number, the uplink symbol number, the flexible symbol number, the uplink and downlink switching symbol number, the invalid symbol number and the position in the data frame structure.

And S1015, the user terminal monitors the PDCCH, demodulates the PDCCH, determines the position of the PDSCH according to the demodulation result of the PDCCH, demodulates the PDSCH and generates HARQ-ACK codebook information.

S1016, the user terminal feeds back HARQ-ACK codebook information on PUCCH in flexible time slot of data frame structure.

The second way is that the base station configures a data frame structure of a URLLC uplink high-reliability service, and the user terminal transmits high-reliability service data based on this type of data frame structure, as shown in fig. 13, the interaction way between the base station and the user terminal includes:

s2011, the base station configures a frame period of the data frame structure and position arrangement of various timeslots in the data frame structure, and sends a broadcast message.

S2012, the base station configures the target flexible time slot number, the target uplink time slot number, the target downlink time slot number, the uplink symbol number, the downlink symbol number, the flexible symbol number, the uplink and downlink switching symbol number, the invalid symbol number and the position in the data frame structure according to the proportion of various services in the URLLC service. The base station transmits a rrcreeconfiguration message.

S2013, the base station sends a scheduling instruction; and the scheduling instruction is used for indicating the user terminal to schedule the resource position of the URLLC service based on the data frame structure.

S2014, the base station determines the position of the target flexible time slot, the position of the target uplink time slot, the position of the target downlink time slot, the position of the uplink symbol, the position of the downlink symbol, the position of the flexible symbol, the position of the uplink switching symbol and the position of the invalid symbol according to the frame period of the received data frame structure, the position arrangement of various time slots in the data frame structure, the target flexible time slot number, the target uplink time slot number, the target downlink time slot number, the uplink symbol number, the flexible symbol number, the uplink and downlink switching symbol number, the invalid symbol number and the position.

S2015, the user terminal monitors the PDCCH, demodulates the PDCCH, determines a resource position corresponding to the PUSCH according to a demodulation result of the PDCCH, and then sends high-reliability service data on the PUSCH.

Compared with the prior art, in the first aspect, the base station configures the data frame structure according to the distribution of the URLLC service in the current cell, so that the proportion of the flexible time slots in the data frame structure is increased, and thus the downlink low-delay service can be fed back at the current time slot, the feedback delay of the downlink low-delay service is reduced, and the purpose of low-delay transmission is achieved. In the second aspect, the base station configures the data frame structure according to the distribution of the URLLC service in the current cell, and can also increase the proportion of uplink timeslots in the data frame structure, so that the high-reliability service of uplink can be transmitted at the level of repeated symbols or repeated timeslots in the uplink timeslots, and the purpose of reliable transmission of the high-reliability service is achieved. In a third aspect, the configuration method of the data frame structure provided by the present application further reserves resources for the uplink channel by introducing invalid symbol numbers, so as to avoid that corresponding resources are occupied by the uplink repeated PUSCH service. In a fourth aspect, the configuration method of the data frame structure provided by the present application introduces the number of uplink and downlink switching symbols, so that the user terminal can make a switching preparation from downlink to uplink in advance, and the base station and the user terminal can keep synchronization at the transmitting and receiving ends.

It should be understood that although the various steps in the flow charts of fig. 2-13 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-13 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.

In one embodiment, as shown in fig. 14, there is provided a configuration apparatus of a data frame structure, including: a determining module 11 and a sending module 12, wherein:

a determining module 11, configured to determine a configuration parameter according to a duty ratio of each service type in the URLLC service of the current cell; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

a sending module 12, configured to send the configuration parameter to a user equipment, so that the user equipment transmits the URLLC service data according to the data frame structure indicated by the configuration parameter.

For specific limitation of the configuration device of the data frame structure, reference may be made to the above limitation on the configuration method of the data frame structure on the base station side, and details are not described here. The modules in the configuration device of the data frame structure can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, as shown in fig. 15, there is provided a configuration apparatus of a data frame structure, including: a receiving module 21 and a transmitting module 22, wherein:

a receiving module 21, configured to receive configuration parameters sent by a base station; the configuration parameter is used for indicating a data frame structure for transmitting URLLC service data;

and a transmission module 22, configured to transmit the URLLC service data according to the data frame structure indicated by the configuration parameter.

For specific limitations of the configuration device of the data frame structure, reference may be made to the above limitations on the configuration method of the data frame structure for the terminal side, which is not described herein again. The modules in the configuration device of the data frame structure can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, a computer device is provided, which may be a terminal or a server, and its internal structure diagram may be as shown in fig. 16. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of configuring a data frame structure. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the architecture shown in fig. 16 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:

and sending the configuration parameters to a user terminal so that the user terminal transmits the URLLC service data according to a data frame structure indicated by the configuration parameters.

and transmitting the URLLC service data according to the data frame structure indicated by the configuration parameters.

The implementation principle and technical effect of the computer device provided by the above embodiment are similar to those of the above method embodiment, and are not described herein again.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:

The implementation principle and technical effect of the computer-readable storage medium provided by the above embodiments are similar to those of the above method embodiments, and are not described herein again.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method for configuring a data frame structure, the method comprising:

2. The method of claim 1, wherein the configuration parameters comprise a target number of flexible timeslots, a target number of uplink timeslots, and a target number of downlink timeslots.

3. The method of claim 2, further comprising:

sending a broadcast message; the broadcast message is used for indicating the frame period of the data frame structure and the position arrangement of various time slots in the data frame structure.

4. The method of claim 3, wherein if the URLLC service contains a low-delay service, said determining configuration parameters according to the duty ratio of each service type in the URLLC service of the current cell comprises:

and determining the target uplink time slot number and the target downlink time slot number according to the target flexible time slot number and the total number of time slots in the frame period of the data frame structure.

5. The method of claim 3, wherein if the URLLC service contains a high-reliability service, said determining configuration parameters according to the duty ratio of each service type in the URLLC service of the current cell comprises:

6. The method of claim 2, wherein the configuration parameters further include the number of uplink symbols, the number of downlink symbols, and the number of flexible symbols in the target flexible timeslot.

7. The method of claim 6, further comprising:

8. The method of claim 1, further comprising:

sending a scheduling instruction; the scheduling instruction is used for indicating the resource position of the URLLC service scheduled based on the data frame structure.

9. The method of claim 8,

if the URLLC service contains a low-delay service, the resource position is a downlink symbol position in a flexible time slot in the data frame structure; the resource corresponding to the downlink symbol position is used for receiving the data of the low-delay service;

if the URLLC service contains a high-reliability service, the resource positions are multiple uplink timeslot positions in the data frame structure for repeatedly transmitting data of the high-reliability service.

10. The method of claim 2, wherein the configuration parameters further comprise: the number of symbols for uplink and downlink switching; the number of uplink and downlink switching symbols is used for indicating the number of switching symbols for switching the user terminal from downlink reception to uplink transmission.

11. The method of claim 2, wherein the configuration parameters further comprise: the number and location of invalid symbols; the invalid symbols are uplink symbols for transmitting other uplink channels, and the other uplink channels comprise Sounding Reference Signals (SRS), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH).

12. The method of claim 3, wherein the position arrangement comprises a position arrangement of an uplink time slot, a downlink time slot and a flexible time slot.

13. The method of claim 1, wherein sending the configuration parameters to a user terminal comprises:

14. An apparatus for configuring a data frame structure, the apparatus comprising:

and the sending module is used for sending the configuration parameters to a user terminal so that the user terminal transmits the URLLC service data according to the data frame structure indicated by the configuration parameters.

15. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 13 when executing the computer program.

16. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 13.