CN113395142A - Data transmission method, device, terminal, base station, communication system and storage medium - Google Patents
Data transmission method, device, terminal, base station, communication system and storage medium Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 12
- 230000011664 signaling Effects 0.000 claims abstract description 18
- 238000012790 confirmation Methods 0.000 claims description 20
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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Abstract
The disclosure provides a data transmission method, a data transmission device, a terminal, a base station, a communication system and a computer readable storage medium, and relates to the technical field of communication. The data transmission method comprises the following steps: the terminal reads the repeated transmission configuration parameters from the wireless resource control signaling sent by the base station; and the terminal repeatedly transmits the uplink data in a plurality of discontinuous uplink time slots of the physical uplink shared channel, wherein the maximum repetition times for transmitting the uplink data is a repeated transmission configuration parameter. The method and the device can improve the coverage performance of the physical uplink shared channel.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, an apparatus, a terminal, a base station, a communication system, and a computer-readable storage medium.
Background
In the NR (New Radio) era, network deployment in high frequency bands such as 3.5GHz makes network coverage performance a significant challenge.
It is found that the Uplink Channel, especially PUSCH (Physical Uplink Shared Channel), becomes an important bottleneck affecting the network coverage performance. Therefore, it is very important to improve the PUSCH coverage capability, wherein PUSCH repetition is a relatively effective technical means.
Disclosure of Invention
The technical problem solved by the present disclosure is how to improve the coverage performance of the physical uplink shared channel.
According to a first aspect of an embodiment of the present disclosure, there is provided a data transmission method, including: the terminal reads the repeated transmission configuration parameters from the wireless resource control signaling sent by the base station; and the terminal repeatedly transmits the uplink data in a plurality of discontinuous uplink time slots of the physical uplink shared channel, wherein the maximum repetition times for transmitting the uplink data is a repeated transmission configuration parameter.
In some embodiments, the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink timeslots of the physical uplink shared channel includes: the terminal detects whether a confirmation message corresponding to the uplink data sent by the base station is received or not in the process of repeatedly transmitting the uplink data; and the terminal determines whether to continuously and repeatedly transmit the uplink data according to the receiving condition of the confirmation message.
In some embodiments, the determining, by the terminal, whether to continue to repeatedly transmit uplink data according to the reception of the acknowledgement message includes: and the terminal stops repeatedly transmitting the uplink data under the condition of receiving the confirmation message.
In some embodiments, the determining, by the terminal, whether to continue to repeatedly transmit uplink data according to the reception of the acknowledgement message includes: and under the condition that the terminal does not receive the confirmation message, continuously and repeatedly transmitting the uplink data until the actual repetition times of the repeated transmission of the uplink data is equal to the value of the repeated transmission configuration parameter.
In some embodiments, the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink timeslots of the physical uplink shared channel further includes: the terminal records the actual repetition times of repeatedly transmitting the uplink data; and the terminal queries the number version mapping table by using the actual repetition number to determine the redundancy version used for repeatedly transmitting the uplink data.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
According to a second aspect of the embodiments of the present disclosure, there is provided a data transmission method, including: a base station sends a radio resource control signaling for bearing repeated transmission configuration parameters to a terminal, wherein the repeated transmission configuration parameters indicate the maximum repeated times of repeated transmission of uplink data in a plurality of discontinuous uplink time slots of a physical uplink shared channel by the terminal; and the base station repeatedly receives the uplink data transmitted by the terminal in a plurality of discontinuous uplink time slots of the physical uplink shared channel.
In some embodiments, the data transmission method further comprises: the base station decodes the uplink data; and the base station transmits an acknowledgement message corresponding to the uplink data to the terminal when the uplink data is successfully decoded.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
According to a third aspect of the embodiments of the present disclosure, there is provided a terminal, including: a parameter reading module configured to read a repeat transmission configuration parameter from a radio resource control signaling sent by a base station; and the data transmission module is configured to repeatedly transmit the uplink data in a plurality of discontinuous uplink time slots of the physical uplink shared channel, and the maximum repetition times for transmitting the uplink data is a repeated transmission configuration parameter.
In some embodiments, the data transmission module is configured to: detecting whether a confirmation message corresponding to the uplink data sent by the base station is received or not in the process of repeatedly transmitting the uplink data; and determining whether to continue to repeatedly transmit the uplink data according to the receiving condition of the confirmation message.
In some embodiments, the data transmission module is configured to: and stopping repeated transmission of the uplink data under the condition of receiving the confirmation message.
In some embodiments, the data transmission module is configured to: and under the condition that the confirmation message is not received, continuously and repeatedly transmitting the uplink data until the actual repeated times of repeatedly transmitting the uplink data are equal to the value of the repeated transmission configuration parameter.
In some embodiments, the data transmission module is further configured to: recording the actual repetition times of repeatedly transmitting the uplink data; and querying a number version mapping table by using the actual number of times of repetition to determine the redundancy version used for repeatedly transmitting the uplink data.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a base station, including: a signaling sending module configured to send a radio resource control signaling carrying a repeat transmission configuration parameter to a terminal, wherein the repeat transmission configuration parameter indicates a maximum number of repetitions of a terminal for repeatedly transmitting uplink data in a plurality of discontinuous uplink timeslots of a physical uplink shared channel; and the data receiving module is configured to repeatedly receive the uplink data transmitted by the terminal in a plurality of discontinuous uplink time slots of the physical uplink shared channel.
In some embodiments, the base station further comprises: a data decoding module configured to decode the uplink data; and the message sending module is configured to send an acknowledgement message corresponding to the uplink data to the terminal under the condition that the uplink data is successfully decoded.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
According to a fifth aspect of the embodiments of the present disclosure, there is provided a communication system including the aforementioned terminal and the aforementioned base station.
According to a sixth aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus including: a memory; and a processor coupled to the memory, the processor configured to perform the aforementioned data transfer method based on instructions stored in the memory.
According to a seventh aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to implement the foregoing data transmission method.
The method and the device can improve the coverage performance of the physical uplink shared channel.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a schematic diagram of a slot sequence using a conventional PUSCH repetition technique.
Fig. 2 illustrates a flow diagram of a data transmission method of some embodiments of the present disclosure.
Fig. 3 illustrates a time slot sequence diagram employing some embodiments of the disclosed data transmission methods.
Fig. 4 is a flowchart illustrating some embodiments of a terminal repeatedly transmitting uplink data.
Fig. 5 shows a schematic diagram of a sequence of time slots employing further embodiments of the disclosed data transmission method.
Fig. 6 shows a flow diagram of a data transmission method according to further embodiments of the present disclosure.
Fig. 7 shows a schematic structural diagram of a terminal of some embodiments of the present disclosure.
Fig. 8 shows a schematic structural diagram of a base station of some embodiments of the present disclosure.
Fig. 9 illustrates a schematic structural diagram of a communication system according to some embodiments of the present disclosure.
Fig. 10 shows a schematic structural diagram of a data transmission device according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The inventors have studied the conventional PUSCH repetition technique. Fig. 1 shows a schematic diagram of a slot sequence using a conventional PUSCH repetition technique. As shown in fig. 1, in the NR protocol version, the uplink and downlink timeslot configurations use symbols as granularity, and support more flexible timeslot configurations, where the timeslots include a downlink timeslot (D), an uplink timeslot (U), and a flexible timeslot (F). In the Rel-15 protocol version, PUSCH repetition is configured by RRC signaling, and the dynamic indication of the repetition times is introduced in the Rel-16 protocol version and can be dynamically configured according to the actual situation of a network. The current protocol supports PUSCH-aggregation factor with the value range of {2,4,8}, but the repetition number is calculated based on continuous time slots. For the NR time division duplex system, the uplink time slot and the downlink time slot occur at intervals, which may cause frequent interruption of PUSCH retransmission, so that the actual retransmission number of the PUSCH is smaller than the configured repetition number. Taking a 2.5ms bi-periodic frame structure as an example, when the configured PUSCH repetition number is 8, the actual repetition number of the PUSCH is 3, which is much smaller than the configured repetition number 8, so the coverage performance of the PUSCH is greatly reduced. To solve the above problem, the present disclosure provides a data transmission method.
Some embodiments of the disclosed data transmission method are first described from the terminal side in connection with fig. 2.
Fig. 2 illustrates a flow diagram of a data transmission method of some embodiments of the present disclosure. As shown in fig. 2, the present embodiment includes steps S201 to S202.
In step S201, the terminal reads the retransmission configuration parameter from the radio resource control signaling transmitted by the base station.
The retransmission configuration parameter may specifically be a PUSCH-aggregation factor in a PUSCH-Config field configured for the physical uplink shared channel, and a value range of the PUSCH-aggregation factor may be {2,4,6,8,16,32,64 }.
In step S202, the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink timeslots of the physical uplink shared channel, where the maximum number of repetitions for transmitting the uplink data is a repeat transmission configuration parameter.
Fig. 3 illustrates a time slot sequence diagram employing some embodiments of the disclosed data transmission methods. As shown in fig. 3, in the case where the uplink time slot and the downlink time slot occur in the NR time division duplex system, the maximum number of repetitions of transmitting uplink data is the parameter 8 still configured for repeated transmission.
In this embodiment, the repeated transmission configuration parameter is an actual maximum repetition number of the terminal for repeatedly transmitting the uplink data in the multiple discontinuous uplink timeslots of the physical uplink shared channel, so that even when an uplink timeslot and a downlink timeslot in the NR time division duplex system occur at an interval, the maximum repetition number of the terminal for repeatedly transmitting the uplink data can be ensured, thereby improving the coverage performance of the PUSCH, particularly the coverage performance of the PUSCH in the NR time division duplex system.
Those skilled in the art should understand that a field PUSCH Repetition Type PUSCH-Repetition-Type with a length of 1 bit may also be configured in RRC signaling to indicate different PUSCH Repetition operation modes. When the PUSCH-Repetition-Type is 0, adopting a traditional PUSCH repeated working mode; when the PUSCH-Repetition-Type is 1, the data transmission operating mode in this embodiment is used to enhance PUSCH transmission.
The inventor further researches and discovers that in the process of repeated transmission of the PUSCH, the situation that the base station decodes correctly can already occur, and then the residual repeated transmission of the PUSCH can cause resource waste. To save resources, a mechanism to terminate PUSCH repeated transmission early may be considered.
Some embodiments of the terminal repeatedly transmitting uplink data are described below with reference to fig. 4.
Fig. 4 is a flowchart illustrating some embodiments of a terminal repeatedly transmitting uplink data. As shown in fig. 4, the present embodiment includes steps S4021 to S4023.
In step S4021, the terminal detects whether an acknowledgment message corresponding to the uplink data sent by the base station is received during the process of repeatedly transmitting the uplink data, so as to determine whether to continue to repeatedly transmit the uplink data according to the reception condition of the acknowledgment message.
And the base station responds an ACK message corresponding to the uplink data to the terminal after correctly decoding the uplink data. Therefore, the terminal may receive HARQ (Hybrid Automatic Repeat Request) feedback information during a window period for repeatedly transmitting uplink data.
Step S4022 is executed in the case where the acknowledgment message is received, and step S4023 is executed in the case where the acknowledgment message is not received.
In step S4022, the terminal stops the repeated transmission of the uplink data.
If the terminal receives the ACK message responded by the base station to the PUSCH uplink data, the terminal means that the base station has correctly decoded the uplink data, and therefore the PUSCH repeated transmission can be terminated in advance.
Fig. 5 shows a schematic diagram of a sequence of time slots employing further embodiments of the disclosed data transmission method. As shown in fig. 5, still taking the 2.5ms bi-periodic frame structure as an example, under the condition that the configured PUSCH repetition number is 8, the terminal terminates the PUSCH repetition transmission early after receiving the ACK message, the actual repetition number of the uplink data for the repeated transmission is no longer 8, and the subsequent uplink slot originally used for the repeated transmission of the uplink data may be used for other terminals (UEs) to transmit the uplink data.
In step S4023, the terminal continues to repeat transmitting the uplink data until the actual number of repetitions of repeatedly transmitting the uplink data is equal to the value of the repeat transmission configuration parameter.
If the terminal receives the NACK message responded by the base station to the PUSCH uplink data, the terminal means that the base station has not correctly decoded the uplink data. If the actual repetition number of the uplink data repeated transmission is smaller than the value of the repeated transmission configuration parameter, the terminal can continue to repeat the uplink data transmission.
The terminal in this embodiment terminates the PUSCH repetition in advance after receiving the ACK message sent by the base station, and can reduce system resource overhead on the premise of ensuring the PUSCH coverage performance.
In some embodiments, the method further comprises steps S4024 to S4025.
In step S4024, the terminal records the actual number of repetitions of repeated transmission of uplink data.
In step S4025, the terminal queries the number-of-times version mapping table using the actual number of times of repetition to determine the redundancy version used for repeatedly transmitting the uplink data.
Those skilled in the art will understand that the terminal selects a corresponding RV (Redundancy Version) according to the actual number of repetitions, which can improve the decoding performance at the terminal side. Meanwhile, the terminal may also receive a Search Space Information Element sent by the base station on the Control channel, where the Search Space Information Element carries a DCI (Downlink Control Information) field. The terminal configures a DCI Format 2_0 according to the dynamic indication of the DCI field, and finishes flexible configuration of a time Slot according to an SFI (Slot Format Indicator) message under the DCI field in a time Slot of a monitoring period of a Physical Downlink Control Channel (PDCCH) after receiving the DCI Format 2_0, and balances the number of uplink time slots and Downlink time slots.
Further embodiments of the disclosed data transmission method are described below from the base station side in connection with fig. 6.
Fig. 6 shows a flow diagram of a data transmission method according to further embodiments of the present disclosure. As shown in fig. 6, the present embodiment includes steps S601 to S602.
In step S601, the base station sends a radio resource control signaling carrying a retransmission configuration parameter to the terminal, where the retransmission configuration parameter indicates a maximum number of repetitions of repeatedly transmitting uplink data in multiple discontinuous uplink timeslots of the physical uplink shared channel.
And the repeated transmission configuration parameter configures the PUSCH-Aggregationfactor in a PUSCH-Config field for the physical uplink shared channel.
In step S602, the base station repeatedly receives uplink data transmitted by the terminal in a plurality of discontinuous uplink timeslots of the physical uplink shared channel.
In some embodiments, the data transmission method further comprises: steps S603 to S604.
In step S603, the base station decodes the uplink data;
in step S604, the base station transmits an acknowledgement message corresponding to the uplink data to the terminal when the decoding of the uplink data is successful.
In this embodiment, the repeated transmission configuration parameter is an actual maximum repetition number of the terminal for repeatedly transmitting the uplink data in the multiple discontinuous uplink timeslots of the physical uplink shared channel, so that even when an uplink timeslot and a downlink timeslot in the NR time division duplex system occur at an interval, the maximum repetition number of the terminal for repeatedly transmitting the uplink data can be ensured, thereby improving the coverage performance of the PUSCH, particularly the coverage performance of the PUSCH in the NR time division duplex system.
Some embodiments of the disclosed terminal are described below in conjunction with fig. 7.
Fig. 7 shows a schematic structural diagram of a terminal of some embodiments of the present disclosure. As shown in fig. 7, the terminal 70 in the present embodiment includes: a parameter reading module 701 configured to read a repeated transmission configuration parameter from a radio resource control signaling sent by a base station; a data transmission module 702, configured to repeatedly transmit uplink data in multiple discontinuous uplink timeslots of a physical uplink shared channel, where a maximum repetition number of transmitting uplink data is a repeat transmission configuration parameter.
In this embodiment, the repeated transmission configuration parameter is an actual maximum repetition number of the terminal for repeatedly transmitting the uplink data in the multiple discontinuous uplink timeslots of the physical uplink shared channel, so that even when an uplink timeslot and a downlink timeslot in the NR time division duplex system occur at an interval, the maximum repetition number of the terminal for repeatedly transmitting the uplink data can be ensured, thereby improving the coverage performance of the PUSCH, particularly the coverage performance of the PUSCH in the NR time division duplex system.
In some embodiments, the data transmission module 702 is configured to: detecting whether a confirmation message corresponding to the uplink data sent by the base station is received or not in the process of repeatedly transmitting the uplink data; and determining whether to continue to repeatedly transmit the uplink data according to the receiving condition of the confirmation message.
In some embodiments, the data transmission module 702 is configured to: and stopping repeated transmission of the uplink data under the condition of receiving the confirmation message.
In some embodiments, the data transmission module 702 is configured to: and under the condition that the confirmation message is not received, continuously and repeatedly transmitting the uplink data until the actual repeated times of repeatedly transmitting the uplink data are equal to the value of the repeated transmission configuration parameter.
The terminal in this embodiment terminates the PUSCH repetition in advance after receiving the ACK message sent by the base station, and can reduce system resource overhead on the premise of ensuring the PUSCH coverage performance.
In some embodiments, the data transmission module 702 is further configured to: recording the actual repetition times of repeatedly transmitting the uplink data; and querying a number version mapping table by using the actual number of times of repetition to determine the redundancy version used for repeatedly transmitting the uplink data.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
Some embodiments of the disclosed base station are described below in conjunction with fig. 8.
Fig. 8 shows a schematic structural diagram of a base station of some embodiments of the present disclosure. As shown in fig. 8, the base station 80 in the present embodiment includes: a signaling sending module 801 configured to send a radio resource control signaling carrying a repeat transmission configuration parameter to a terminal, where the repeat transmission configuration parameter indicates a maximum number of repetitions of a terminal for repeatedly transmitting uplink data in a plurality of discontinuous uplink timeslots of a physical uplink shared channel; a data receiving module 802, configured to repeatedly receive uplink data transmitted by a terminal in a plurality of discontinuous uplink timeslots of a physical uplink shared channel.
In some embodiments, the base station 80 further comprises: a data decoding module 803 configured to decode uplink data; a message sending module 804 configured to send an acknowledgement message corresponding to the uplink data to the terminal, if the uplink data is successfully decoded.
In some embodiments, the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
In this embodiment, the repeated transmission configuration parameter is an actual maximum repetition number of the terminal for repeatedly transmitting the uplink data in the multiple discontinuous uplink timeslots of the physical uplink shared channel, so that even when an uplink timeslot and a downlink timeslot in the NR time division duplex system occur at an interval, the maximum repetition number of the terminal for repeatedly transmitting the uplink data can be ensured, thereby improving the coverage performance of the PUSCH, particularly the coverage performance of the PUSCH in the NR time division duplex system.
Some embodiments of the disclosed communication system are described below in conjunction with fig. 9.
Fig. 9 illustrates a schematic structural diagram of a communication system according to some embodiments of the present disclosure. As shown in fig. 9, a communication system 90 in the present embodiment includes a terminal 70 and a base station 80.
Some embodiments of the disclosed data transmission apparatus are described below in conjunction with fig. 10.
Fig. 10 shows a schematic structural diagram of a data transmission device according to some embodiments of the present disclosure. As shown in fig. 10, the data transmission device 100 of this embodiment includes: a memory 1010 and a processor 1020 coupled to the memory 1010, the processor 1020 configured to execute the data transmission method of any of the foregoing embodiments based on instructions stored in the memory 1010.
The data transmission apparatus 100 may further include an input-output interface 1030, a network interface 1040, a storage interface 1050, and the like. These interfaces 1030, 1040, 1050 and the memory 1010 and the processor 1020 may be connected via a bus 1060, for example. The input/output interface 1030 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. Network interface 1040 provides a connection interface for various networking devices. The storage interface 1050 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the data transmission method of any of the foregoing embodiments.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (21)
1. A method of data transmission, comprising:
the terminal reads the repeated transmission configuration parameters from the wireless resource control signaling sent by the base station;
and the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink time slots of the physical uplink shared channel, wherein the maximum repetition times for transmitting the uplink data is the repeated transmission configuration parameter.
2. The data transmission method according to claim 1, wherein the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink timeslots of a physical uplink shared channel comprises:
the terminal detects whether a confirmation message corresponding to the uplink data sent by the base station is received or not in the process of repeatedly transmitting the uplink data;
and the terminal determines whether to continuously and repeatedly transmit the uplink data according to the receiving condition of the confirmation message.
3. The data transmission method according to claim 2, wherein the determining, by the terminal, whether to continue to repeatedly transmit the uplink data according to the reception of the acknowledgement message includes:
and the terminal stops repeatedly transmitting the uplink data under the condition of receiving the confirmation message.
4. The data transmission method according to claim 2, wherein the determining, by the terminal, whether to continue to repeatedly transmit the uplink data according to the reception of the acknowledgement message includes:
and under the condition that the terminal does not receive the confirmation message, continuously and repeatedly transmitting the uplink data until the actual repeated times of repeatedly transmitting the uplink data are equal to the value of the repeated transmission configuration parameter.
5. The data transmission method according to claim 2, wherein the terminal repeatedly transmits uplink data in a plurality of discontinuous uplink timeslots of a physical uplink shared channel further comprises:
the terminal records the actual repetition times of the repeated transmission of the uplink data;
and the terminal queries a number version mapping table by using the actual repetition number to determine the redundancy version used for repeatedly transmitting the uplink data.
6. The data transmission method according to any one of claims 1 to 5, wherein the repeated transmission configuration parameter is a PUSCH-Aggregationfactor in a PUSCH-Config field of a physical uplink shared channel configuration.
7. A method of data transmission, comprising:
a base station sends a radio resource control signaling carrying repeated transmission configuration parameters to a terminal, wherein the repeated transmission configuration parameters indicate the maximum repetition times of repeated transmission of uplink data in a plurality of discontinuous uplink time slots of a physical uplink shared channel by the terminal;
and the base station repeatedly receives the uplink data transmitted by the terminal in a plurality of discontinuous uplink time slots of the physical uplink shared channel.
8. The data transmission method of claim 7, further comprising:
the base station decodes the uplink data;
and the base station sends an acknowledgement message corresponding to the uplink data to the terminal under the condition that the uplink data is successfully decoded.
9. The data transmission method according to claim 7 or 8, wherein the repeated transmission configuration parameter configures a PUSCH-Aggregationfactor in a PUSCH-Config field for a physical uplink shared channel.
10. A terminal, comprising:
a parameter reading module configured to read a repeat transmission configuration parameter from a radio resource control signaling sent by a base station;
and the data transmission module is configured to repeatedly transmit uplink data in a plurality of discontinuous uplink time slots of a physical uplink shared channel, and the maximum repetition times for transmitting the uplink data is the repeated transmission configuration parameter.
11. The terminal of claim 10, wherein the data transmission module is configured to:
detecting whether a confirmation message corresponding to the uplink data sent by a base station is received or not in the process of repeatedly transmitting the uplink data;
and determining whether to continuously and repeatedly transmit the uplink data according to the receiving condition of the confirmation message.
12. The terminal of claim 11, wherein the data transmission module is configured to:
and under the condition of receiving the confirmation message, stopping repeatedly transmitting the uplink data.
13. The terminal of claim 11, wherein the data transmission module is configured to:
and under the condition that the confirmation message is not received, continuously and repeatedly transmitting the uplink data until the actual repeated times of repeatedly transmitting the uplink data are equal to the value of the repeated transmission configuration parameter.
14. The terminal of claim 11, wherein the data transmission module is further configured to:
recording the actual repetition times of the repeated transmission of the uplink data;
and inquiring a number version mapping table by using the actual repetition number to determine the redundancy version used for repeatedly transmitting the uplink data.
15. The terminal according to any of claims 10 to 14, wherein the retransmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
16. A base station, comprising:
a signaling sending module configured to send a radio resource control signaling carrying a repeat transmission configuration parameter to a terminal, where the repeat transmission configuration parameter indicates a maximum number of repetitions of a terminal for repeatedly transmitting uplink data in a plurality of discontinuous uplink timeslots of a physical uplink shared channel;
and the data receiving module is configured to repeatedly receive the uplink data transmitted by the terminal in a plurality of discontinuous uplink time slots of the physical uplink shared channel.
17. The base station of claim 16, further comprising:
a data decoding module configured to decode the uplink data;
and the message sending module is configured to send an acknowledgement message corresponding to the uplink data to the terminal under the condition that the uplink data is successfully decoded.
18. The base station according to claim 16 or 17, wherein the repeated transmission configuration parameter configures a PUSCH-aggregation factor in a PUSCH-Config field for a physical uplink shared channel.
19. A communication system comprising a terminal as claimed in any of claims 10 to 15 and a base station as claimed in any of claims 16 to 18.
20. A data transmission apparatus comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the data transfer method of any of claims 1 to 9 based on instructions stored in the memory.
21. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the data transmission method of any one of claims 1 to 9.
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