CN108023688A - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
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- CN108023688A CN108023688A CN201610954482.3A CN201610954482A CN108023688A CN 108023688 A CN108023688 A CN 108023688A CN 201610954482 A CN201610954482 A CN 201610954482A CN 108023688 A CN108023688 A CN 108023688A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000004048 modification Effects 0.000 claims abstract description 93
- 238000012986 modification Methods 0.000 claims abstract description 93
- 230000011664 signaling Effects 0.000 claims description 153
- 230000006870 function Effects 0.000 claims description 47
- 238000012790 confirmation Methods 0.000 claims description 18
- 101100465000 Mus musculus Prag1 gene Proteins 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 86
- 238000010586 diagram Methods 0.000 description 16
- 238000004590 computer program Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
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- 235000003140 Panax quinquefolius Nutrition 0.000 description 5
- 235000008434 ginseng Nutrition 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The invention discloses a kind of data transmission method and device, including：Base station configures parameter according to propagation delay time size and reliability step, modification HARQ configuration parameters and/or ARQ；The HARQ of modification is configured parameter for base station and/or ARQ configurations parameter is notified to terminal；Using the technical solution of the embodiment of the present invention, it can effectively meet the transmission requirement of highly reliable low time delay type service.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of data transmission method and device.
Background technology
In Long Term Evolution communication system (LTE, Long Term Evolution), for different types of service, LTE's
Protocol infrastructure and physical layer parameter are identical, i.e., in the feelings without considering conventional cyclic prefix (CP, Cyclic Prefix) and extension CP
Under condition, the physical layer such as symbolic number that the corresponding subcarrier spacing of different service types, subframe include, mark space, sub-frame formats
Parameter is identical, and for user plane, the transmitting of data is needed by wireless spread-spectrum technology (RLC, Radio Link
Automatic retransmission request (ARQ, Automatic Repeat reQuest) Control) and medium education (MAC,
Medium Access Control) hybrid automatic repeat-request (HARQ, Hybrid ARQ) process ensure, of course, it is possible to
The maximum retransmission of HARQ is configured, negative confirmation (NACK, the Negative of HARQ are received in transmitting terminal
Acknowledgement retransmission processes will be initiated after), therefore, data retransmission mechanism uses stop-and-wait in LTE, i.e. transmitting terminal is every
Send a data packet just temporarily to stop, wait the confirmation message of receiving terminal.When receive receiving terminal confirmation (ACK,
When Acknowledgement), then new data are sent, when the data of the NACK for receiving receiving terminal feedback, then re-transmission last time transmission
Bag.Also, if after reaching HARQ maximum retransmissions, still bust this, then need by the ARQ retransmission processes of RLC come
It is further ensured that data transmission credibility, will certainly so introduces larger time delay, it is difficult to meets the business need of delay sensitive.
The reliability transmission of data is ensured in LTE by two layers of retransmission mechanism, that is, passes through rlc layer described above
The ARQ and HARQ of MAC layer come realize reliable transmission of data will cause larger propagation delay time (because ARQ retransmit too slow, ARQ
Reliability can only be improved), that is, need to exchange reliability, the 5th third-generation mobile communication (5G, Fifth of future for by time delay
Generation) in mobile communication, for super reliable low time delay (URLLC, Ultra-Reliable and Low Latency
Communications) business, i.e., meet highly reliable and low time delay requirement type of service at the same time, if still used in LTE
Two layers re-transmission framework, the low time delay requirement for meeting URLLC type services is would become hard to while reliability requirement is met, because
This, is to deactivate layer 2 (L2, Layer2) to reach one of the low time delay of URLLC and highly reliable demand, the method studied in 5G
ARQ functions of retransmission, only retains mono- layer of HARQ and retransmits to obtain time delay gain, still, deactivated if the ARQ of L2 retransmitted, again
It is difficult to meet it is highly reliable requirement (for example requiring error probability be less than 10^5), therefore, how to realize the highly reliable of data transfer with
Low time delay is that have the problem of to be solved.
The content of the invention
In order to solve the above technical problems, an embodiment of the present invention provides a kind of data transmission method and device, can realize
The highly reliable and low time delay requirement of URLLC type service data transfers.
Data transmission method provided in an embodiment of the present invention, including：
Base station according to propagation delay time size and reliability step, modification hybrid automatic repeat-request HARQ configuration parameters and/
Or automatic retransmission request ARQ configuration parameters；
The HARQ of modification is configured parameter for base station and/or ARQ configurations parameter is notified to terminal.
In the embodiment of the present invention, the modification hybrid automatic repeat-request HARQ configuration parameters and/or automatic retransmission request
ARQ configures parameter, including：
Parameter is configured by the semi-static modification HARQ of control signaling and/or ARQ configures parameter；
Alternatively, parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ.
In the embodiment of the present invention, the HARQ of modification is configured parameter for the base station and/or ARQ configurations parameter was notified to end
End, including：
The control signaling for including the HARQ configuration parameters and/or ARQ configuration parameters is sent to terminal by base station.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the method further includes：
Base station is activated or is deactivated the ARQ functions of retransmission in layer 2 by the control signaling, wherein, the layer 2 includes：
PDCP layers of Packet Data Convergence Protocol, wireless spread-spectrum technology rlc layer, media access control MAC layer.
It is described that parameter and/or ARQ configuration ginsengs are configured by the semi-static modification HARQ of control signaling in the embodiment of the present invention
Number, including：
Parameter is configured by the semi-static modification HARQ of the control signaling of network layer and/or ARQ configures parameter.
It is described that parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ in the embodiment of the present invention,
Including：
Parameter is configured by data link layer control signaling dynamic modification HARQ and/or ARQ configures parameter；
Alternatively, parameter and/or ARQ configuration parameters are configured by physical layer control signaling dynamic modification HARQ.
Data transmission method provided in an embodiment of the present invention, including：
Terminal receives the HARQ configuration parameters and/or ARQ configuration parameters of base station modification；
Terminal configures parameter according to the HARQ and/or ARQ configures parameter, carries out the transmission of data.
In the embodiment of the present invention, the terminal receives the HARQ configuration parameters and/or ARQ configuration parameters of base station modification, bag
Include：
Terminal receives base station and configures parameter and/or ARQ configuration parameters by the HARQ of the semi-static modification of control signaling；
Alternatively, terminal receives, base station configures parameter by the HARQ of control signaling dynamic modification and/or ARQ configures parameter.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the transmission for carrying out data, including：
Terminal carries out repeatedly blind re-transmission in a Transmission Time Interval during data are sent to data, wherein,
The blind re-transmission refers to：The confirmation ACK information or negative confirmation nack message that transmitting terminal is fed back without waiting for receiving terminal just carry out
Re-transmission.
Data transmission device provided in an embodiment of the present invention, including：
Unit is changed, for matching somebody with somebody according to propagation delay time size and reliability step, modification HARQ configuration parameters and/or ARQ
Put parameter；
Notification unit, for notifying the HARQ configuration parameters of modification and/or ARQ configurations parameter to terminal.
In the embodiment of the present invention, the modification unit, specifically for passing through the semi-static modification HARQ configurations ginseng of control signaling
Number and/or ARQ configuration parameters；Alternatively, parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ.
In the embodiment of the present invention, the notification unit, specifically for the HARQ configuration parameters and/or ARQ will be included
The control signaling of configuration parameter is sent to terminal.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, described device further includes：
Control unit is activated, for activating or deactivating the ARQ functions of retransmission in layer 2 by the control signaling, wherein,
The layer 2 includes：PDCP layers, rlc layer, MAC layer.
In the embodiment of the present invention, the modification unit, specifically for the semi-static modification of control signaling by network layer
HARQ configures parameter and/or ARQ configuration parameters.
In the embodiment of the present invention, the modification unit, specifically for being changed by data link layer control signaling dynamic
HARQ configures parameter and/or ARQ configuration parameters；Alternatively, by physical layer control signaling dynamic modification HARQ configure parameter and/or
ARQ configures parameter.
Data transmission device provided in an embodiment of the present invention, including：
Receiving unit, for receiving the HARQ configuration parameters and/or ARQ configuration parameters of base station modification；
Transmission unit, for configuring parameter and/or ARQ configuration parameters according to the HARQ, carries out the transmission of data.
In the embodiment of the present invention, the receiving unit, passes through the semi-static modification of control signaling specifically for receiving base station
HARQ configures parameter and/or ARQ configuration parameters；Alternatively, receive base station configures parameter by the HARQ of control signaling dynamic modification
And/or ARQ configuration parameters.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the transmission unit, specifically for during data are sent, in a transmission time
Repeatedly blind re-transmission is carried out to data in interval, wherein, the blind re-transmission refers to：The confirmation that transmitting terminal is fed back without waiting for receiving terminal
The re-transmission that ACK information or negative confirmation nack message just carry out.
In the technical solution of the embodiment of the present invention, base station is matched somebody with somebody according to propagation delay time size and reliability step, modification HARQ
Put parameter and/or ARQ configuration parameters；The HARQ of modification is configured parameter for base station and/or ARQ configurations parameter is notified to terminal.Adopt
With the technical solution of the embodiment of the present invention, it can effectively meet the transmission requirement of highly reliable low time delay type service.
Brief description of the drawings
Fig. 1 is the flow diagram one of the data transmission method of the embodiment of the present invention；
Fig. 2 is the flow diagram two of the data transmission method of the embodiment of the present invention；
Fig. 3 is the flow diagram three of the data transmission method of the embodiment of the present invention；
Fig. 4 is that HARQ configuration parameters are dynamically changed in the base station of the embodiment of the present invention and/or the flow of ARQ configuration parameters is shown
It is intended to；
Fig. 5 is that the semi-static modification HARQ in the base station of the embodiment of the present invention configures parameter and/or ARQ configures the flow of parameter
Figure；
Fig. 6 is the structure composition schematic diagram one of the data transmission device of the embodiment of the present invention；
Fig. 7 is the structure composition schematic diagram two of the data transmission device of the embodiment of the present invention.
Embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings to this hair
The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used for limiting the embodiment of the present invention.
Fig. 1 is the flow diagram one of the data transmission method of the embodiment of the present invention, the data transmission method in this example
Applied to base station side, as shown in Figure 1, the data transmission method comprises the following steps：
Step 101：Base station is configured according to propagation delay time size and reliability step, modification HARQ configuration parameters and/or ARQ
Parameter.
Step 102：The HARQ of modification is configured parameter for base station and/or ARQ configurations parameter is notified to terminal.
In the embodiment of the present invention, the modification hybrid automatic repeat-request HARQ configuration parameters and/or automatic retransmission request
ARQ configures parameter, including：
Parameter is configured by the semi-static modification HARQ of control signaling and/or ARQ configures parameter；
Alternatively, parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ.
In the embodiment of the present invention, the HARQ of modification is configured parameter for the base station and/or ARQ configurations parameter was notified to end
End, including：
The control signaling for including the HARQ configuration parameters and/or ARQ configuration parameters is sent to terminal by base station.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the method further includes：
Base station is activated or is deactivated the ARQ functions of retransmission in layer 2 by the control signaling, wherein, the layer 2 includes：
Packet Data Convergence Protocol (PDCP, Packet Data Convergence Protocol) layer, rlc layer, medium education
MAC layer.
It is described that parameter and/or ARQ configuration ginsengs are configured by the semi-static modification HARQ of control signaling in the embodiment of the present invention
Number, including：
Parameter is configured by the semi-static modification HARQ of the control signaling of network layer and/or ARQ configures parameter.
It is described that parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ in the embodiment of the present invention,
Including：
Parameter is configured by data link layer control signaling dynamic modification HARQ and/or ARQ configures parameter；
Alternatively, parameter and/or ARQ configuration parameters are configured by physical layer control signaling dynamic modification HARQ.
Fig. 2 is the flow diagram two of the data transmission method of the embodiment of the present invention, the data transmission method in this example
Applied to end side, as shown in Fig. 2, the data transmission method comprises the following steps：
Step 201：Terminal receives the HARQ configuration parameters and/or ARQ configuration parameters of base station modification.
Step 202：Terminal configures parameter according to the HARQ and/or ARQ configures parameter, carries out the transmission of data.
In the embodiment of the present invention, the terminal receives the HARQ configuration parameters and/or ARQ configuration parameters of base station modification, bag
Include：
Terminal receives base station and configures parameter and/or ARQ configuration parameters by the HARQ of the semi-static modification of control signaling；
Alternatively, terminal receives, base station configures parameter by the HARQ of control signaling dynamic modification and/or ARQ configures parameter.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the transmission for carrying out data, including：
Terminal carries out repeatedly blind re-transmission in a Transmission Time Interval during data are sent to data, wherein,
The blind re-transmission refers to：The confirmation ACK information or negative confirmation nack message that transmitting terminal is fed back without waiting for receiving terminal just carry out
Re-transmission.
Fig. 3 is the flow diagram three of the data transmission method of the embodiment of the present invention, and base station, which passes through, in this example controls letter
Semi-static or dynamic modification HARQ configuration parameters and/or ARQ configuration parameters, such as base station is made to pass through wireless heterogeneous networks
(RRC, Radio Resource Control) or MAC Control Element (MAC CE, MAC Control Element) and/or thing
Down control channel (PDCCH, Physical Downlink Control Channel) configurating terminal is managed in a transmission time
The blind re-transmission of multiple HARQ is carried out in interval, the ARQ functions of retransmission of L2 is deactivated, to meet the reliable low time delay of superelevation (such as
URLLC transmission requirement), terminal carry out the transmission process of data using HARQ configuration parameters and/or ARQ configuration parameters.Such as Fig. 3
Shown, the data transmission method comprises the following steps：
Step 301：Base station is semi-static or dynamic modification HARQ configures parameter and/or ARQ configuration ginsengs by control signaling
Number.
The control signaling includes at least one：Network layer control signaling, data link layer control signaling, physical layer
Control signaling.
Wherein, the network layer control signaling can be RRC；
The data link layer control signaling can be MAC CE；
The physical layer control signaling is sent by physical layer control channel, including at least one：Physical down control
Channel (PDCCH) processed, enhancing Physical Downlink Control Channel (ePDCCH).
The base station configures parameter by the semi-static modification HARQ of network layer control signaling and/or ARQ configures parameter.
HARQ is dynamically changed by data link layer control signaling or physical layer control signaling and configures parameter in the base station
And/or ARQ configuration parameters.
The HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions, maximum retransmission.
The ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
Step 302：Terminal carries out the transmission process of data according to the instruction of the control signaling.
The configured information of the control signaling includes at least one：The blind number of retransmissions of HARQ, number of retransmissions, maximum weight
Pass number, the activation or deactivation that ARQ is retransmitted.
The blind number of retransmissions of HARQ represents that base station configurating terminal carries out once data in a Transmission Time Interval
Or repeatedly blind re-transmission, to meet the highly reliable and low time delay requirement of data transfer.
One Transmission Time Interval is defined as basic time unit's (being e.g., 1ms in LTE) of scheduling.
The control signaling configured information is semi-static by RRC control signaling for the base station, or passes through MAC CE/
The dynamic modes of PDCCH are sent to terminal.
Embodiment one
Fig. 4 is that HARQ configuration parameters are dynamically changed in the base station of the embodiment of the present invention and/or the flow of ARQ configuration parameters is shown
It is intended to.In the present embodiment, base station by data link layer or physical layer control signaling dynamically change HARQ configure parameter and/or
ARQ configures parameter, for example, base station carried out by the dynamic configurating terminal of MAC CE or PDCCH in a Transmission Time Interval it is more
The blind re-transmission of secondary HARQ, deactivates the ARQ functions of retransmission of L2, to meet the transmission requirement of the reliable low time delay of superelevation (such as URLLC),
Terminal carries out the transmission process of data using HARQ configuration parameters and/or ARQ configuration parameters, and specific steps are described as follows：
Step 401：HARQ configuration parameters and/or ARQ configuration parameters are dynamically changed by control signaling in base station.
The control signaling includes at least one：Data link layer control signaling, physical layer control signaling.
Wherein, the data link layer control signaling can be MAC CE；
The physical layer control signaling is sent by physical layer control channel, including at least one：Physical down control
Channel (PDCCH) processed, enhancing Physical Downlink Control Channel (ePDCCH).
HARQ is dynamically changed by data link layer control signaling or physical layer control signaling and configures parameter in the base station
And/or ARQ configuration parameters.
The HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions, maximum retransmission.
The ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
Step 402：Terminal receives confirmation message to base station feedback control signaling.
The reception confirmation message carries the reception state for being used to indicate whether to be successfully received the control signaling and refers to
Show.When reception state instruction is unsuccessfully received the control signaling, then, base station can retransmit the control signaling.
Step 403：Terminal carries out the transmission of data according to the instruction of control signaling.
The configured information of the control signaling includes at least one：The blind number of retransmissions of HARQ, number of retransmissions, maximum weight
Pass number, the activation or deactivation that ARQ is retransmitted.
The blind number of retransmissions of HARQ represents that base station configurating terminal carries out once data in a Transmission Time Interval
Or repeatedly blind re-transmission, to meet the highly reliable and low time delay requirement of data transfer.
The control signaling configured information is sent to terminal for the base station by the dynamic mode of MAC CE or PDCCH.
Embodiment two
Fig. 5 is that the semi-static modification HARQ in the base station of the embodiment of the present invention configures parameter and/or ARQ configures the flow of parameter
Figure.The present embodiment is similar with the flow of embodiment one, and difference is, base station is repaiied by the way that network layer control signaling is semi-static
Change HARQ configuration parameter and/or ARQ configuration parameter, such as base station by the semi-static configurating terminal of RRC control signaling at one
The blind re-transmission of multiple HARQ is carried out in Transmission Time Interval, the ARQ functions of retransmission of L2 is deactivated, to meet the reliable low time delay of superelevation
The transmission requirement of (such as URLLC), terminal carry out the transmission process of data, tool using HARQ configuration parameters and/or ARQ configuration parameters
Body step is described as follows：
Step 501：Base station configures parameter by the semi-static modification HARQ of control signaling and/or ARQ configures parameter.
The control signaling includes network layer control signaling.Wherein, the network layer control signaling can be RRC.
The base station configures parameter by the semi-static modification HARQ of network layer control signaling and/or ARQ configures parameter.
The HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions, maximum retransmission.
The ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
Step 502：Terminal receives confirmation message to base station feedback control signaling.
The reception confirmation message carries the reception state for being used to indicate whether to be successfully received the control signaling and refers to
Show.When reception state instruction is unsuccessfully received the control signaling, then, base station can retransmit the control signaling.
Step 503：Terminal carries out the transmission of data according to the instruction of control signaling.
The configured information of the control signaling includes at least one：The blind number of retransmissions of HARQ, number of retransmissions, maximum weight
Pass number, the activation or deactivation that ARQ is retransmitted.
The blind number of retransmissions of HARQ represents that base station configurating terminal carries out once data in a Transmission Time Interval
Or repeatedly blind re-transmission, to meet the highly reliable and low time delay requirement of data transfer.
The control signaling configured information is sent to terminal for the base station by the semi-static mode of RRC control signaling.
Fig. 6 is the structure composition schematic diagram one of the data transmission device of the embodiment of the present invention, the data transfer in this example
Device is located at base station side, as shown in fig. 6, described device includes：
Unit 61 is changed, for configuring parameter and/or ARQ according to propagation delay time size and reliability step, modification HARQ
Configure parameter；
Notification unit 62, for notifying the HARQ configuration parameters of modification and/or ARQ configurations parameter to terminal.
In the embodiment of the present invention, the modification unit 61, specifically for being configured by the semi-static modification HARQ of control signaling
Parameter and/or ARQ configuration parameters；Alternatively, parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ.
In the embodiment of the present invention, the notification unit 62, specifically for will include HARQ configuration parameter and/or
The control signaling of ARQ configuration parameters is sent to terminal.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, described device further includes：
Control unit 63 is activated, for activating or deactivating the ARQ functions of retransmission in layer 2 by the control signaling, its
In, the layer 2 includes：PDCP layers, rlc layer, MAC layer.
In the embodiment of the present invention, the modification unit 61, specifically for the semi-static modification of control signaling by network layer
HARQ configures parameter and/or ARQ configuration parameters.
In the embodiment of the present invention, the modification unit 61, specifically for being changed by data link layer control signaling dynamic
HARQ configures parameter and/or ARQ configuration parameters；Alternatively, by physical layer control signaling dynamic modification HARQ configure parameter and/or
ARQ configures parameter.
It will be appreciated by those skilled in the art that each unit in data transmission device shown in Fig. 6 realizes that function can join
Understand according to the associated description of aforementioned data transmission method.The function of each unit in data transmission device shown in Fig. 6 can lead to
Cross the program run on processor and realize, can also be realized by specific logic circuit.
Fig. 7 is the structure composition schematic diagram two of the data transmission device of the embodiment of the present invention, the data transfer in this example
Device is located at end side, as shown in fig. 7, described device includes：
Receiving unit 71, for receiving the HARQ configuration parameters and/or ARQ configuration parameters of base station modification；
Transmission unit 72, for configuring parameter and/or ARQ configuration parameters according to the HARQ, carries out the transmission of data.
In the embodiment of the present invention, the receiving unit 71, passes through the semi-static modification of control signaling specifically for receiving base station
HARQ configuration parameter and/or ARQ configuration parameter；Alternatively, receive base station configures ginseng by the HARQ of control signaling dynamic modification
Number and/or ARQ configuration parameters.
In the embodiment of the present invention, the HARQ configurations parameter includes at least one：Blind number of retransmissions, number of retransmissions,
Maximum retransmission.
In the embodiment of the present invention, the ARQ configurations parameter includes at least one：Activate ARQ functions of retransmission, deactivate
ARQ functions of retransmission.
In the embodiment of the present invention, the control signaling includes at least one：Network layer control signaling, data link layer
Control signaling, physical layer control signaling.
In the embodiment of the present invention, the transmission unit 72, specifically for during data are sent, when transmitting for one
Between be spaced in data carry out repeatedly blind re-transmission, wherein, it is described it is blind re-transmission refer to：Transmitting terminal is fed back really without waiting for receiving terminal
Recognize ACK information or re-transmission that negative confirmation nack message just carries out.
It will be appreciated by those skilled in the art that each unit in data transmission device shown in Fig. 7 realizes that function can join
Understand according to the associated description of aforementioned data transmission method.The function of each unit in data transmission device shown in Fig. 7 can lead to
Cross the program run on processor and realize, can also be realized by specific logic circuit.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (30)
- A kind of 1. data transmission method, it is characterised in that the described method includes：Base station according to propagation delay time size and reliability step, modification hybrid automatic repeat-request HARQ configuration parameters and/or from Dynamic repeat requests ARQ configuration parameters；The HARQ of modification is configured parameter for base station and/or ARQ configurations parameter is notified to terminal.
- 2. data transmission method according to claim 1, it is characterised in that the modification hybrid automatic repeat-request HARQ Parameter and/or automatic retransmission request ARQ configuration parameters are configured, including：Parameter is configured by the semi-static modification HARQ of control signaling and/or ARQ configures parameter；Alternatively, parameter and/or ARQ configuration parameters are configured by control signaling dynamic modification HARQ.
- 3. data transmission method according to claim 2, it is characterised in that the HARQ of modification is configured parameter by the base station And/or ARQ configurations parameter is notified to terminal, including：The control signaling for including the HARQ configuration parameters and/or ARQ configuration parameters is sent to terminal by base station.
- 4. data transmission method according to claim 1, it is characterised in that the HARQ configurations parameter includes at least following One of：Blind number of retransmissions, number of retransmissions, maximum retransmission.
- 5. data transmission method according to claim 1, it is characterised in that the ARQ configurations parameter includes at least following One of：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
- 6. the data transmission method according to Claims 2 or 3, it is characterised in that the control signaling includes at least following One of：Network layer control signaling, data link layer control signaling, physical layer control signaling.
- 7. data transmission method according to claim 6, it is characterised in that the method further includes：Base station is activated or is deactivated the ARQ functions of retransmission in layer 2 by the control signaling, wherein, the layer 2 includes：Packet PDCP layers of data convergence protocol, wireless spread-spectrum technology rlc layer, media access control MAC layer.
- 8. data transmission method according to claim 6, it is characterised in that described to pass through the semi-static modification of control signaling HARQ configures parameter and/or ARQ configuration parameters, including：Parameter is configured by the semi-static modification HARQ of the control signaling of network layer and/or ARQ configures parameter.
- 9. data transmission method according to claim 6, it is characterised in that described to pass through control signaling dynamic modification HARQ Parameter and/or ARQ configuration parameters are configured, including：Parameter is configured by data link layer control signaling dynamic modification HARQ and/or ARQ configures parameter；Alternatively, parameter and/or ARQ configuration parameters are configured by physical layer control signaling dynamic modification HARQ.
- A kind of 10. data transmission method, it is characterised in that the described method includes：Terminal receives the HARQ configuration parameters and/or ARQ configuration parameters of base station modification；Terminal configures parameter according to the HARQ and/or ARQ configures parameter, carries out the transmission of data.
- 11. data transmission method according to claim 10, it is characterised in that the terminal receives the HARQ of base station modification Parameter and/or ARQ configuration parameters are configured, including：Terminal receives base station and configures parameter and/or ARQ configuration parameters by the HARQ of the semi-static modification of control signaling；Alternatively, terminal receives, base station configures parameter by the HARQ of control signaling dynamic modification and/or ARQ configures parameter.
- 12. data transmission method according to claim 10, it is characterised in that HARQ configuration parameter include at least with It is one of lower：Blind number of retransmissions, number of retransmissions, maximum retransmission.
- 13. data transmission method according to claim 10, it is characterised in that ARQ configuration parameter include at least with It is one of lower：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
- 14. data transmission method according to claim 11, it is characterised in that the control signaling include it is at least following it One：Network layer control signaling, data link layer control signaling, physical layer control signaling.
- 15. data transmission method according to claim 10, it is characterised in that the transmission for carrying out data, including：Terminal carries out repeatedly blind re-transmission in a Transmission Time Interval during data are sent to data, wherein, it is described Blind re-transmission refers to：The weight that the confirmation ACK information or negative confirmation nack message that transmitting terminal is fed back without waiting for receiving terminal just carry out Pass.
- 16. a kind of data transmission device, it is characterised in that described device includes：Unit is changed, for joining according to propagation delay time size and reliability step, modification HARQ configuration parameters and/or ARQ configurations Number；Notification unit, for notifying the HARQ configuration parameters of modification and/or ARQ configurations parameter to terminal.
- 17. data transmission device according to claim 16, it is characterised in that the modification unit, specifically for passing through The semi-static modification HARQ configuration parameters of control signaling and/or ARQ configuration parameters；Alternatively, pass through control signaling dynamic modification HARQ Configure parameter and/or ARQ configuration parameters.
- 18. data transmission device according to claim 17, it is characterised in that the notification unit, specifically for that will wrap The control signaling that parameter and/or ARQ configuration parameters are configured containing the HARQ is sent to terminal.
- 19. data transmission device according to claim 16, it is characterised in that HARQ configuration parameter include at least with It is one of lower：Blind number of retransmissions, number of retransmissions, maximum retransmission.
- 20. data transmission device according to claim 16, it is characterised in that ARQ configuration parameter include at least with It is one of lower：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
- 21. the data transmission device according to claim 17 or 18, it is characterised in that the control signaling include at least with It is one of lower：Network layer control signaling, data link layer control signaling, physical layer control signaling.
- 22. data transmission device according to claim 21, it is characterised in that described device further includes：Control unit is activated, for activating or deactivating the ARQ functions of retransmission in layer 2 by the control signaling, wherein, it is described Layer 2 includes：PDCP layers, rlc layer, MAC layer.
- 23. data transmission device according to claim 21, it is characterised in that the modification unit, specifically for passing through The semi-static modification HARQ configuration parameters of control signaling and/or ARQ configuration parameters of network layer.
- 24. data transmission device according to claim 21, it is characterised in that the modification unit, specifically for passing through Data link layer control signaling dynamic modification HARQ configuration parameters and/or ARQ configuration parameters；Believe alternatively, being controlled by physical layer Order dynamic modification HARQ configuration parameters and/or ARQ configuration parameters.
- 25. a kind of data transmission device, it is characterised in that described device includes：Receiving unit, for receiving the HARQ configuration parameters and/or ARQ configuration parameters of base station modification；Transmission unit, for configuring parameter and/or ARQ configuration parameters according to the HARQ, carries out the transmission of data.
- 26. data transmission device according to claim 25, it is characterised in that the receiving unit, specifically for receiving Base station configures parameter by the HARQ of the semi-static modification of control signaling and/or ARQ configures parameter；Alternatively, receiving base station passes through control The HARQ configuration parameters and/or ARQ configuration parameters of signaling dynamic modification processed.
- 27. data transmission device according to claim 25, it is characterised in that HARQ configuration parameter include at least with It is one of lower：Blind number of retransmissions, number of retransmissions, maximum retransmission.
- 28. data transmission device according to claim 25, it is characterised in that ARQ configuration parameter include at least with It is one of lower：Activate ARQ functions of retransmission, deactivate ARQ functions of retransmission.
- 29. data transmission device according to claim 26, it is characterised in that the control signaling include it is at least following it One：Network layer control signaling, data link layer control signaling, physical layer control signaling.
- 30. data transmission device according to claim 25, it is characterised in that the transmission unit, specifically for sending out During sending data, repeatedly blind re-transmission is carried out to data in a Transmission Time Interval, wherein, the blind re-transmission refers to： The re-transmission that the confirmation ACK information or negative confirmation nack message that transmitting terminal is fed back without waiting for receiving terminal just carry out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610954482.3A CN108023688A (en) | 2016-11-03 | 2016-11-03 | A kind of data transmission method and device |
| PCT/CN2017/109008 WO2018082582A1 (en) | 2016-11-03 | 2017-11-01 | Data transmission method and device, and computer storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954482.3A CN108023688A (en) | 2016-11-03 | 2016-11-03 | A kind of data transmission method and device |
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| CN108023688A true CN108023688A (en) | 2018-05-11 |
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| CN201610954482.3A Pending CN108023688A (en) | 2016-11-03 | 2016-11-03 | A kind of data transmission method and device |
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| WO (1) | WO2018082582A1 (en) |
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| WO2022041084A1 (en) * | 2020-08-27 | 2022-03-03 | 北京小米移动软件有限公司 | Blind retransmission method and apparatus, and blind retransmission indication method and apparatus |
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| WO2018082582A1 (en) | 2018-05-11 |
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