CN113395781A - 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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- CN113395781A CN113395781A CN202010166151.XA CN202010166151A CN113395781A CN 113395781 A CN113395781 A CN 113395781A CN 202010166151 A CN202010166151 A CN 202010166151A CN 113395781 A CN113395781 A CN 113395781A
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- resource control
- radio resource
- control connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
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 system information block message broadcast by the base station; the terminal repeatedly transmits the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel, and the maximum repetition times for transmitting the radio resource control connection request message is a repeated transmission configuration parameter. The method and the device can improve the coverage performance of the radio resource control connection request message on the physical uplink shared channel in the contention-based random access process, thereby improving the random access success rate of the terminal and further balancing the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process.
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.
Disclosure of Invention
The technical problem solved by the present disclosure is how to improve the coverage performance of the physical uplink shared channel in the contention-based random access process.
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 system information block message broadcast by the base station; the terminal repeatedly transmits the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel, and the maximum repetition times for transmitting the radio resource control connection request message is a repeated transmission configuration parameter.
In some embodiments, the terminal repeatedly transmitting the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel includes: the terminal detects whether a radio resource control connection establishment message corresponding to the radio resource control connection request message sent by the base station is received or not in the process of repeatedly transmitting the radio resource control connection request message; and the terminal determines whether to continuously and repeatedly transmit the radio resource control connection request message according to the receiving condition of the radio resource control connection establishment message.
In some embodiments, the terminal determining whether to continue to repeatedly transmit the rrc connection request message according to the reception of the rrc connection setup message includes: and the terminal stops repeatedly transmitting the radio resource control connection request message under the condition of receiving the radio resource control connection establishment message.
In some embodiments, the terminal determining whether to continue to repeatedly transmit the rrc connection request message according to the reception of the rrc connection setup message includes: and under the condition that the terminal does not receive the radio resource control connection establishment message, continuously and repeatedly transmitting the radio resource control connection request message until the actual repetition times of the repeated transmission of the radio resource control connection request message is equal to the value of the repeated transmission configuration parameter.
In some embodiments, the terminal repeatedly transmitting the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel further comprises: the terminal records the actual repetition times of the repeated transmission of the wireless resource control connection request message; the terminal queries the number version mapping table by using the actual number of times of repetition to determine the redundancy version used for repeatedly transmitting the RRC connection request message.
According to a second aspect of the embodiments of the present disclosure, there is provided a data transmission method, including: a base station broadcasts a system information block message carrying repeated transmission configuration parameters to a terminal, wherein the repeated transmission configuration parameters indicate the maximum repeated times of repeated transmission of a radio resource control connection request message in a plurality of uplink time slots of a physical uplink shared channel by the terminal; and the base station repeatedly receives the radio resource control connection request message transmitted by the terminal in a plurality of uplink time slots of the physical uplink shared channel.
In some embodiments, the data transmission method further comprises: the base station decodes the radio resource control connection request message; and the base station sends a radio resource control connection establishment message corresponding to the radio resource control connection request message to the terminal under the condition that the decoding of the radio resource control connection request message is successful.
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 retransmission configuration parameter from a system information block message broadcast by a base station; and the data transmission module is configured to repeatedly transmit the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel, and the maximum repetition times for transmitting the radio resource control connection request message is a repeated transmission configuration parameter.
In some embodiments, the data transmission module is configured to: detecting whether a radio resource control connection establishment message corresponding to the radio resource control connection request message sent by a base station is received or not in the process of repeatedly transmitting the radio resource control connection request message; and determining whether to continuously and repeatedly transmit the radio resource control connection request message according to the receiving condition of the radio resource control connection establishment message.
In some embodiments, the data transmission module is configured to: and under the condition of receiving the radio resource control connection establishment message, stopping repeatedly transmitting the radio resource control connection request message.
In some embodiments, the data transmission module is configured to: and under the condition that the radio resource control connection establishment message is not received, continuously and repeatedly transmitting the radio resource control connection request message until the actual repeated times of the repeated transmission of the radio resource control connection request message is 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 the repeated transmission of the radio resource control connection request message; and inquiring the number version mapping table by using the actual repeated times to determine the redundancy version used for repeatedly transmitting the radio resource control connection request message.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a base station, including: a message broadcasting module configured to broadcast a system information block message carrying a retransmission configuration parameter to a terminal, the retransmission configuration parameter indicating a maximum number of repetitions of a terminal for repeatedly transmitting a radio resource control connection request message in a plurality of uplink slots of a physical uplink shared channel; and the data receiving module is configured to repeatedly receive the radio resource control connection request message transmitted by the terminal in a plurality of 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 radio resource control connection request message; and the message sending module is configured to send a radio resource control connection establishment message corresponding to the radio resource control connection request message to the terminal under the condition that the decoding of the radio resource control connection request message is successful.
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 radio resource control connection request message on the physical uplink shared channel in the contention-based random access process, thereby improving the random access success rate of the terminal and further balancing the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process.
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 flow diagram of a data transmission method of some embodiments of the present disclosure.
Fig. 2 illustrates a flow diagram of some embodiments in which a terminal repeatedly transmits a radio resource control connection request message.
Fig. 3 is a flow chart illustrating a data transmission method according to further embodiments of the present disclosure.
Fig. 4 shows a schematic structural diagram of a terminal according to some embodiments of the present disclosure.
Fig. 5 shows a schematic structural diagram of a base station of some embodiments of the present disclosure.
Fig. 6 illustrates a schematic structural diagram of a communication system according to some embodiments of the present disclosure.
Fig. 7 shows a schematic structural diagram of a data transmission apparatus 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.
In the current NR protocol version, in a non-contention based random access process, a terminal sends a preamble given by a base station to complete access. The random access process based on competition is divided into the following four steps: firstly, a plurality of terminals send lead codes to a base station, namely the terminals select the lead codes and send an Msg1 message to the base station; secondly, the terminal monitors whether a Physical Downlink Control Channel (PDCCH) has an Msg2 message about the terminal; the third step: if the Msg2 message about the terminal exists, the terminal sends an Msg3 (radio resource control connection request) message containing the terminal identification and monitors whether the PDCCH has the Msg4 message about the terminal; the fourth step: and the terminal receives the Msg4 message and judges that the terminal wins competition or fails to access.
The inventors have studied the conventional PUSCH repetition technique. In the current NR protocol version, PUSCH retransmission in an RRC (Radio Resource Control) connection mode is supported, that is, a terminal establishes an RRC connection and then repeatedly transmits uplink data in different slots of the PUSCH. However, during the contention based random access procedure, the Msg3 message does not support PUSCH retransmission, that is, the Msg3 message cannot be repeatedly transmitted in different slots of the PUSCH during the contention based random access procedure. This may cause the PUSCH coverage to be unbalanced, and although the terminal can support uplink data transmission at the target rate, the contention-based random access procedure may not be successfully completed, resulting in failure of RRC connection. In order to balance the coverage performance of the PUSCH in the RRC connected state with the coverage performance of the Msg3 on the PUSCH in the contention-based random access process, the present disclosure provides a data transmission method that supports repeated transmission of Msg3 messages on the PUSCH.
Some embodiments of the disclosed data transmission method are first described from the terminal side in connection with fig. 1.
Fig. 1 shows a flow diagram of a data transmission method of some embodiments of the present disclosure. As shown in fig. 1, the present embodiment includes steps S101 to S102.
In step S101, the terminal reads the retransmission configuration parameter from the system information block message broadcast by the base station.
For example, a retransmission configuration parameter Msg3-pusch-aggregation factor may be added to a SIB (System Information Block) message, and the value range of the retransmission configuration parameter may be {2,4,8,16 }.
In step S102, the terminal repeatedly transmits the rrc connection request message in a plurality of uplink timeslots of the physical uplink shared channel, and a maximum number of repetitions of transmitting the rrc connection request message is a retransmission configuration parameter.
In this embodiment, the coverage performance of the radio resource control connection request message on the physical uplink shared channel in the contention-based random access process can be improved, so that the random access success rate of the terminal is improved, and the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process are balanced.
Those skilled in the art will appreciate that a 1-bit length field Msg3-PUSCH-repetition may also be configured in the SIB message to indicate whether to turn on the repeated transmission of Msg3 on PUSCH. After the terminal reads a field Msg3-PUSCH-repetition in the SIB message, when the Msg3-PUSCH-repetition is 0, starting the repeated transmission of the Msg3 on the PUSCH; when the Msg3-PUSCH-repetition is 1, the repeated transmission of Msg3 on the PUSCH is not turned on.
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 the radio resource control connection request message are described below in conjunction with fig. 2.
Fig. 2 illustrates a flow diagram of some embodiments in which a terminal repeatedly transmits a radio resource control connection request message. As shown in fig. 2, the present embodiment includes steps S2021 to S2023.
In step S2021, the terminal detects whether a rrc connection setup message corresponding to the rrc connection request message is received during the rrc connection request message is repeatedly transmitted, so as to determine whether to continue to repeatedly transmit the rrc connection request message according to the rrc connection setup message.
After correctly decoding the rrc connection request message, the base station responds to the Msg4 message corresponding to the rrc connection request message. Step S2022 is performed if the rrc connection setup message is received, and step S2023 is performed if the rrc connection setup message is not received.
In step S2022, the terminal stops the repeated transmission of the radio resource control connection request message.
If the terminal receives the Msg4 message responded by the base station to the PUSCH RRC CONNECTION REQUEST message, it means that the base station has correctly decoded the RRC CONNECTION REQUEST message, so that the PUSCH repeat transmission can be terminated early.
In step S2023, the terminal continues to repeat transmitting the rrc connection request message until the actual number of repetitions of repeatedly transmitting the rrc connection request message is equal to the value of the repeated transmission configuration parameter.
If the terminal does not receive the Msg4 message responded by the base station to the PUSCH RRC CONNECTION REQUEST message, it means that the base station has not correctly decoded the RRC CONNECTION REQUEST message. If the actual number of times of repeatedly transmitting the rrc connection request message is less than the value of the repeated transmission configuration parameter, the terminal may continue to repeatedly transmit the rrc connection request message.
The terminal in this embodiment terminates PUSCH repetition in advance after receiving the Msg4 message sent by the base station, and can reduce system resource overhead on the premise of ensuring PUSCH coverage performance.
In some embodiments, step S2024 to step S2025 are further included.
In step S2024, the terminal records the actual number of repetitions of the repeated transmission of the rrc connection request message.
In step S2025, the terminal queries the number of times version map using the actual number of repetitions to determine the redundancy version used for the repeated transmission of the rrc connection request message.
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 DCI Format 2_0 according to the dynamic indication of the DCI field, and finishes the flexible configuration of the time Slot according to the SFI (Slot Format Indicator) message under the DCI field in the continuous PDCCH monitoring period time Slot after receiving the DCI Format 2_0, and balances the number of the uplink time Slot and the downlink time Slot.
Further embodiments of the disclosed data transmission method are described below from the base station side in connection with fig. 3.
Fig. 3 is a flow chart illustrating a data transmission method according to further embodiments of the present disclosure. As shown in fig. 3, the present embodiment includes steps S301 to S302.
In step S301, the base station broadcasts a system information block message carrying a retransmission configuration parameter to the terminal, where the retransmission configuration parameter indicates a maximum number of repetitions of a radio resource control connection request message repeatedly transmitted by the terminal in a plurality of uplink timeslots of a physical uplink shared channel.
In step S302, the base station repeatedly receives the rrc connection request message transmitted by the terminal in a plurality of uplink slots of the physical uplink shared channel.
In some embodiments, the data transmission method further comprises: steps S303 to S304.
In step S303, the base station decodes the radio resource control connection request message;
in step S304, the base station transmits a radio resource control connection establishment message corresponding to the radio resource control connection request message to the terminal when the decoding of the radio resource control connection request message is successful.
In this embodiment, the coverage performance of the radio resource control connection request message on the physical uplink shared channel in the contention-based random access process can be improved, so that the random access success rate of the terminal is improved, and the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process are balanced.
Some embodiments of the disclosed terminal are described below in conjunction with fig. 4.
Fig. 4 shows a schematic structural diagram of a terminal according to some embodiments of the present disclosure. As shown in fig. 4, the terminal 40 in the present embodiment includes: a parameter reading module 401 configured to read a retransmission configuration parameter from a system information block message broadcast by a base station; a data transmission module 402, configured to repeatedly transmit the rrc connection request message in a plurality of uplink timeslots of the physical uplink shared channel, where a maximum number of repetitions of transmitting the rrc connection request message is a repeated transmission configuration parameter.
In this embodiment, the coverage performance of the radio resource control connection request message on the physical uplink shared channel in the contention-based random access process can be improved, so that the random access success rate of the terminal is improved, and the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process are balanced.
In some embodiments, the data transmission module 402 is configured to: detecting whether a radio resource control connection establishment message corresponding to the radio resource control connection request message sent by a base station is received or not in the process of repeatedly transmitting the radio resource control connection request message; and determining whether to continuously and repeatedly transmit the radio resource control connection request message according to the receiving condition of the radio resource control connection establishment message.
In some embodiments, the data transmission module 402 is configured to: and under the condition of receiving the radio resource control connection establishment message, stopping repeatedly transmitting the radio resource control connection request message.
In some embodiments, the data transmission module 402 is configured to: and under the condition that the radio resource control connection establishment message is not received, continuously and repeatedly transmitting the radio resource control connection request message until the actual repeated times of the repeated transmission of the radio resource control connection request message is equal to the value of the repeated transmission configuration parameter.
The terminal in this embodiment terminates PUSCH repetition in advance after receiving the Msg4 message sent by the base station, and can reduce system resource overhead on the premise of ensuring PUSCH coverage performance.
In some embodiments, the data transmission module 402 is further configured to: recording the actual repetition times of the repeated transmission of the radio resource control connection request message; and inquiring the number version mapping table by using the actual repeated times to determine the redundancy version used for repeatedly transmitting the radio resource control connection request message.
Some embodiments of the disclosed base station are described below in conjunction with fig. 5.
Fig. 5 shows a schematic structural diagram of a base station of some embodiments of the present disclosure. As shown in fig. 5, the base station 50 in the present embodiment includes: a message broadcasting module 501 configured to broadcast a system information block message carrying a repeat transmission configuration parameter to a terminal, where the repeat transmission configuration parameter indicates a maximum number of repetitions of a radio resource control connection request message repeatedly transmitted by the terminal in a plurality of uplink timeslots of a physical uplink shared channel; a data receiving module 502 configured to repeatedly receive the rrc connection request message transmitted by the terminal in a plurality of uplink timeslots of the physical uplink shared channel.
In some embodiments, the base station 50 further comprises: a data decoding module 503 configured to decode the radio resource control connection request message; a message sending module 504, configured to send a radio resource control connection establishment message corresponding to the radio resource control connection request message to the terminal if the decoding of the radio resource control connection request message is successful.
In this embodiment, the coverage performance of the radio resource control connection request message on the physical uplink shared channel in the contention-based random access process can be improved, so that the random access success rate of the terminal is improved, and the coverage performance of the physical uplink shared channel in the radio resource control connection state and the coverage performance of the physical uplink shared channel in the contention-based random access process are balanced.
Some embodiments of the disclosed communication system are described below in conjunction with fig. 6.
Fig. 6 illustrates a schematic structural diagram of a communication system according to some embodiments of the present disclosure. As shown in fig. 6, the communication system 60 in the present embodiment includes a terminal 40 and a base station 50.
Some embodiments of the disclosed data transmission apparatus are described below in conjunction with fig. 7.
Fig. 7 shows a schematic structural diagram of a data transmission apparatus according to some embodiments of the present disclosure. As shown in fig. 7, the data transmission device 70 of this embodiment includes: a memory 710 and a processor 720 coupled to the memory 710, the processor 720 configured to perform the data transmission method of any of the foregoing embodiments based on instructions stored in the memory 1010.
The data transmission device 70 may further include an input-output interface 730, a network interface 740, a storage interface 750, and the like. These interfaces 730, 740, 750 and the memory 77 and the processor 720 may be connected by a bus 760, for example. The input/output interface 730 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 740 provides a connection interface for various networking devices. The storage interface 750 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 (17)
1. A method of data transmission, comprising:
the terminal reads the repeated transmission configuration parameters from the system information block message broadcast by the base station;
and the terminal repeatedly transmits the radio resource control connection request message in a plurality of uplink time slots of the physical uplink shared channel, wherein the maximum repetition times for transmitting the radio resource control connection request message is the repeated transmission configuration parameter.
2. The data transmission method according to claim 1, wherein the terminal repeatedly transmitting the radio resource control connection request message in a plurality of uplink slots of the physical uplink shared channel comprises:
the terminal detects whether a radio resource control connection establishment message corresponding to the radio resource control connection request message sent by the base station is received or not in the process of repeatedly transmitting the radio resource control connection request message;
and the terminal determines whether to continuously and repeatedly transmit the radio resource control connection request message according to the receiving condition of the radio resource control connection establishment message.
3. The data transmission method according to claim 2, wherein the terminal determining whether to continue to repeatedly transmit the rrc connection request message according to the reception of the rrc connection setup message comprises:
and the terminal stops repeatedly transmitting the radio resource control connection request message under the condition of receiving the radio resource control connection establishment message.
4. The data transmission method according to claim 2, wherein the terminal determining whether to continue to repeatedly transmit the rrc connection request message according to the reception of the rrc connection setup message comprises:
and under the condition that the terminal does not receive the radio resource control connection establishment message, continuously and repeatedly transmitting the radio resource control connection request message until the actual repeated times of repeatedly transmitting the radio resource control connection request message is equal to the value of the repeated transmission configuration parameter.
5. The data transmission method according to claim 2, wherein the terminal repeatedly transmits the radio resource control connection request message in a plurality of uplink slots of the physical uplink shared channel further comprises:
the terminal records the actual repetition times of the repeated transmission of the wireless resource control connection request message;
and the terminal queries a number version mapping table by using the actual repeated number to determine the redundancy version used for repeatedly transmitting the radio resource control connection request message.
6. A method of data transmission, comprising:
a base station broadcasts a system information block message carrying repeated transmission configuration parameters to a terminal, wherein the repeated transmission configuration parameters indicate the maximum repeated times of repeated transmission of a wireless resource control connection request message in a plurality of uplink time slots of a physical uplink shared channel by the terminal;
and the base station repeatedly receives the radio resource control connection request message transmitted by the terminal in a plurality of uplink time slots of the physical uplink shared channel.
7. The data transmission method of claim 6, further comprising:
the base station decodes the radio resource control connection request message;
and the base station sends a radio resource control connection establishment message corresponding to the radio resource control connection request message to the terminal under the condition that the decoding of the radio resource control connection request message is successful.
8. A terminal, comprising:
a parameter reading module configured to read a retransmission configuration parameter from a system information block message broadcast by a base station;
a data transmission module configured to repeatedly transmit a radio resource control connection request message in a plurality of uplink timeslots of a physical uplink shared channel, wherein a maximum repetition number of transmitting the radio resource control connection request message is the repeat transmission configuration parameter.
9. The terminal of claim 8, wherein the data transmission module is configured to:
detecting whether a radio resource control connection establishment message corresponding to the radio resource control connection request message sent by a base station is received or not in the process of repeatedly transmitting the radio resource control connection request message;
and determining whether to continuously and repeatedly transmit the radio resource control connection request message according to the receiving condition of the radio resource control connection establishment message.
10. The terminal of claim 9, wherein the data transmission module is configured to:
and under the condition of receiving the radio resource control connection establishment message, stopping repeatedly transmitting the radio resource control connection request message.
11. The terminal of claim 9, wherein the data transmission module is configured to:
and under the condition that the radio resource control connection establishment message is not received, continuously and repeatedly transmitting the radio resource control connection request message until the actual repeated times of repeatedly transmitting the radio resource control connection request message is equal to the value of the repeated transmission configuration parameter.
12. The terminal of claim 9, wherein the data transmission module is further configured to:
recording the actual repetition times of the repeated transmission of the radio resource control connection request message;
and inquiring a number version mapping table by using the actual repetition number to determine a redundancy version used for repeatedly transmitting the radio resource control connection request message.
13. A base station, comprising:
a message broadcasting module configured to broadcast a system information block message carrying a repeat transmission configuration parameter to a terminal, the repeat transmission configuration parameter indicating a maximum number of repetitions of a terminal repeatedly transmitting a radio resource control connection request message in a plurality of uplink slots of a physical uplink shared channel;
a data receiving module configured to repeatedly receive the radio resource control connection request message transmitted by a terminal in a plurality of uplink time slots of a physical uplink shared channel.
14. The base station of claim 13, further comprising:
a data decoding module configured to decode the radio resource control connection request message;
a message sending module configured to send a radio resource control connection establishment message corresponding to the radio resource control connection request message to a terminal if the radio resource control connection request message is decoded successfully.
15. A communication system comprising a terminal as claimed in any of claims 8 to 12 and a base station as claimed in claim 13 or 14.
16. 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 7 based on instructions stored in the memory.
17. 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 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023077313A1 (en) * | 2021-11-03 | 2023-05-11 | Oppo广东移动通信有限公司 | Transmission method and apparatus based on uplink coverage enhancement, and threshold configuration method and apparatus |
| WO2023102689A1 (en) * | 2021-12-06 | 2023-06-15 | 北京小米移动软件有限公司 | Four-step random access-based method for coverage enhancement by means of third message repetition |
| WO2023122986A1 (en) * | 2021-12-28 | 2023-07-06 | 北京小米移动软件有限公司 | Repeated transmission termination method and device, storage medium, and apparatus |
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| CN113395781B (en) | 2023-05-02 |
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