CN108418659A - A kind of data transmission method, device and relevant device - Google Patents
A kind of data transmission method, device and relevant device Download PDFInfo
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- CN108418659A CN108418659A CN201710072849.3A CN201710072849A CN108418659A CN 108418659 A CN108418659 A CN 108418659A CN 201710072849 A CN201710072849 A CN 201710072849A CN 108418659 A CN108418659 A CN 108418659A
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- Prior art keywords
- transmission
- repetition
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- grant
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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
- H04L1/1825—Adaptation of specific ARQ protocol parameters according to transmission conditions
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
-
- 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
- H04L1/1607—Details of the supervisory signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a kind of data transmission method, device and relevant device, is related to field of communication technology, to design meet URLLC time delay and reliability requirement based on the parcel transmission for repeating transmission.The method includes：The transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition include pre-determined number N or free times；Wherein, N is positive integer；The free time transmitting terminal that corresponds to repeats always to receiving terminal transmission data until the receiving terminal feedback acknowledgment information ACK or sending when having reached the maximum transmission times max_tx, and the transmitting terminal repeats the number sent；According to the transmission number of repetition, carry out data transmission by predetermined manner.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to a kind of data transmission method, device and relevant device.
Background technology
Mobile Internet and internet of things service demand, the 5th third-generation mobile communication (5G) towards the year two thousand twenty and future have become
Global development hot spot.In the 5G concept white paper issued in 15 years, low time delay high reliable communication (URLLC, Ultra-Reliable
And Low-Latency Communications) high index request is proposed to time delay and reliability.Because most
In the case of number, message transmission rate is metastable, in order to realize the service of super reliable communication, need with highest level can
Ensure the enabling of best user experience or service by property and shortest delay.
The highly reliable scene of low time delay is mainly directed towards the Internet of Things such as car networking, Industry Control and the special applications of vertical industry and needs
It asks, provide the end-to-end time delay of Millisecond to the user and ensures close to 100% service reliability.URLLC is packet services, number
It is 20~1000bit according to packet, also has agreement to think that the dead load of URLLC is 50~100 bytes.To meet delay requirement, need
Air interface transmission time delay is greatly reduced.It, need to be in communication process in order under the premise of ensureing data reliability, reduce propagation delay time
Using new mechanism.
Current LTE eats dishes without rice or wine to complete mapping of the data service to physical channel by way of layering, and MAC layer uses HARQ skills
Art realizes the transmission of low Packet Error Ratio, but due to introducing feedback and retransmitting so that propagation delay time is often larger.How according to URLLC
The design of parcel characteristic meet the time delay of URLLC and the parcel transmission plan of reliability requirement to be that this field is urgently to be resolved hurrily ask
Topic.
Invention content
The technical problem to be solved in the present invention is to provide a kind of data transmission method, device and relevant devices, to design
Meet the time delay of URLLC and being transmitted based on the parcel for repeating transmission for reliability requirement.
On the one hand, the present invention provides a kind of data transmission method, including：The transmission number of repetition and lead to that configuration data is transmitted
Know that signaling, the transmission number of repetition include pre-determined number N or free times；Wherein, N is positive integer；It is described free time to correspond to
Transmitting terminal repeats always to receiving terminal transmission data until the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum
When transmission times max_tx, the transmitting terminal repeats the number sent；According to the transmission number of repetition, carried out by predetermined manner
Data transmission.
Optionally, the transmission number of repetition of the configuration data transmission includes：According to channel quality indicator (CQI), number is configured
According to the transmission number of repetition of transmission.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields.
Optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, the DL assignment include that downlink data is corresponding following at least one：Transmission time unit refers to
Show；Physical Downlink Shared Channel PDSCH frequency resources position；Modulation coding scheme MCS；Hybrid automatic repeat-request HARQ is related
Parameter.
Optionally, the HARQ relevant parameters include following at least one parameter：New data instruction NDI, HARQ process numbers,
Redundant version number RV.
Optionally, transmission time unit instruction includes：Transmission time cell type and/or transmission time unit position
Set, the transmission time cell position attach most importance to multiple transmission data multiple transmission time units position.
Optionally, the transmission time cell type includes following at least one：Transmission Time Interval TTI, mini-slot
mini-slot。
Optionally, continuous each other between multiple transmission time cell positions or interval setting；If transmitting number of repetition
For pre-determined number n times, the transmission time cell position indicates the time location of N number of transmission time unit；If transmission repeats
Number is free time, and the transmission time cell position indicates the time location of k transmission time unit, wherein k and CQI
Correlation, and k is the integer more than 0 and less than the max_tx.
Optionally, the UL grant include that upstream data is corresponding following at least one：Transmission time unit indicates；Object
Manage Uplink Shared Channel PUSCH frequency resources position；Modulation coding scheme MCS；Hybrid automatic repeat-request HARQ relevant parameters.
Optionally, the DL assignment of the simplification are sent primary per k transmission time unit；The DL of the simplification
Assignment includes that downlink data is corresponding following at least one：The k transmission time unit respective positions；MCS；
PDSCH frequency locations.
Optionally, the UL grant of the simplification are sent primary per k transmission time unit；The UL grant of the simplification
It is corresponding following at least one including upstream data：The k transmission time unit respective positions；MCS；PUSCH frequencies position
It sets.
Optionally, the predetermined manner is related with transmission number of repetition and data transfer direction, including following at least one：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；If downlink
Transmission and transmission number of repetition are free secondary, and UE data are transmitted according to DL assignment and the DL assignment simplified；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；If uplink and
It is free time to transmit number of repetition, and UE data are transmitted according to UL grant and the UL grant simplified.
Optionally, described to include according to DL assignment transmission UE data：The transmitting terminal is base station, the reception
End is UE；The base station repeats transmission UE data on N number of transmission time unit that DL assignment are specified, wherein described
Repetition is transmitted as N number of different redundancy versions RV of one transmission block TB of transmission；The repetition transmission is referred to using DL assignment
Fixed MCS, PDSCH frequency location, HARQ relevant parameters.
Optionally, described to include according to DL assignment and the DL assignment transmission UE data simplified：It is described
Transmitting terminal is base station, and the receiving terminal is UE；Preceding k repetition is transmitted, the k biography that the base station is specified in DL assignment
Transmission UE data are repeated on defeated time quantum, wherein the repetition is transmitted as the k difference RV of one TB of transmission；The repetition
Transmission is using MCS, PDSCH frequency location specified DL assignment, HARQ relevant parameters；K+1 times and later repetition biography
Defeated, base station repeats to transmit the data of UE on the k transmission time unit that simplified DL assignment are specified, wherein described
Repetition is transmitted as the k difference RV of one TB of circle transmission；It is described to repeat what transmission was specified using simplified DL assignment
The HARQ relevant parameters that MCS, PDSCH frequency location and DL assignment are specified.
Optionally, described to include according to UL grant transmission UE data：The transmitting terminal is UE, and the receiving terminal is base
It stands；The base station receives data and the use that the UE repeats transmission UE on N number of transmission time unit that UL grant are specified
The specified MCS and HARQ relevant parameter demodulating and decoding data, wherein the repetition be transmitted as one TB of transmission it is N number of not
Same RV；It is described to repeat MCS, PUSCH frequency location, the HARQ relevant parameters that transmission is specified using UL grant.
Optionally, described to include according to UL grant and the UL grant transmission UE data simplified：The transmitting terminal is UE,
The receiving terminal is base station；Preceding k repetition is transmitted, and the base station receives the k transmission time that the UE is specified in UL grant
MCS the and HARQ relevant parameter demodulating and decoding data for repeating the data of transmission UE on unit and being specified using the UL grant,
Wherein, the repetition is transmitted as the k difference RV of one TB of transmission；It is described to repeat what transmission was specified using the UL grant
MCS, PUSCH frequency location, HARQ relevant parameters；K+1 times and repetition transmission later, the base station receives the UE simplified
The data of transmission UE are repeated on k specified UL grant transmission time unit and the UL grant of the simplification is used to specify
MCS and HARQ relevant parameter demodulating and decoding data, wherein the repetition is transmitted as the k difference RV of one TB of circle transmission；Institute
It states repetition and transmits the HARQ phases that MCS, PUSCH frequency location specified using simplified UL grant and UL grant are specified
Related parameter.
On the other hand, the present invention also provides a kind of data transmission methods, including：It receives the notice signaling of base station and therefrom obtains
It includes pre-determined number N or free times to take the transmission number of repetition of data transmission, the transmission number of repetition；Wherein, N is just whole
Number；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until the receiving terminal feedback acknowledgment information
When ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats the number sent；According to transmission weight
Again it counts, carries out data transmission by predetermined manner.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；It is described
RepeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields are used for
It indicates to repeat the maximum number of times of transmission max_tx transmitted when repeatingTrans-Index instructions repeat free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, described to carry out data transmission including following at least one by predetermined manner：If downlink transfer and transmission
Number of repetition is pre-determined number n times, and Downlink Control Information DCI is received on PDCCH and obtains DL assignment；Described
N number of transmission time unit specified DL assignment repeats to receive data on specified PDSCH frequency locations and uses institute
State the specified MCS and HARQ relevant parameter demodulating and decoding data of DL assignment；If downlink transfer and transmission number of repetition
It is free time, DCI is received on PDCCH and obtains DL assignment and is received on PDCCH per k transmission time unit
DCI simultaneously obtains simplified DL assignment；In the k biography that the DL assignment or DL assignment of simplification are specified
Defeated time quantum repeats the MCS for receiving data and being specified using the DL assignment on specified PDSCH frequency locations
And HARQ relevant parameter demodulating and decoding data；If uplink and number of repetition is transmitted for pre-determined number n times, in UL grant
Specified N number of transmission time unit repeats transmission data on specified PUSCH frequency locations, to the base station；If uplink
Transmission and transmission number of repetition are free time, k transmission time unit specifying in the UL grant or UL grant of simplification,
On PUSCH frequency locations specified the UL grant or UL grant of simplification, transmission data is repeated to the base station.
On the other hand, the present invention also provides a kind of data transmission devices, including：Dispensing unit is transmitted for configuration data
Transmission number of repetition and notice signaling, the transmission number of repetition includes pre-determined number N or free time；Wherein, N is just whole
Number；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until the receiving terminal feedback acknowledgment information
When ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats the number sent；First transmission unit,
For the transmission number of repetition according to the configuration of described dispensing unit, carry out data transmission by predetermined manner.
Optionally, the dispensing unit is specifically used for according to channel quality indicator (CQI), the transmission weight of configuration data transmission
Again it counts.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields.
Optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, the DL assignment include that downlink data is corresponding following at least one：Transmission time unit refers to
Show；Physical Downlink Shared Channel PDSCH frequency resources position；Modulation coding scheme MCS；Hybrid automatic repeat-request HARQ is related
Parameter.
Optionally, transmission time unit instruction includes：Transmission time cell type and/or transmission time unit position
Set, the transmission time cell position attach most importance to multiple transmission data multiple transmission time units position.
Optionally, the UL grant include that upstream data is corresponding following at least one：Transmission time unit indicates；Object
Manage Uplink Shared Channel PUSCH frequency resources position；Modulation coding scheme MCS；Hybrid automatic repeat-request HARQ relevant parameters.
Optionally, the DL assignment of the simplification are sent primary per k transmission time unit；The DL of the simplification
Assignment includes that downlink data is corresponding：The k transmission time unit respective positions；MCS；PDSCH frequency locations.
Optionally, the UL grant of the simplification are sent primary per k transmission time unit；The UL grant of the simplification
It is corresponding following at least one including upstream data：The k transmission time unit respective positions；MCS；PUSCH frequencies position
It sets.
Optionally, the predetermined manner is related with transmission number of repetition and data transfer direction, including following at least one：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；If downlink
Transmission and transmission number of repetition are free secondary, and UE data are transmitted according to DL assignment and the DL assignment simplified；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；If uplink and
It is free time to transmit number of repetition, and UE data are transmitted according to UL grant and the UL grant simplified.
On the other hand, the present invention also provides a kind of data transmission devices, including：Receiving unit, for receiving the logical of base station
Know that signaling and the transmission number of repetition of data therefrom transmission, the transmission number of repetition include pre-determined number N or free times；
Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until the receiving terminal is anti-
When feedback confirmation message ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats the number sent；Second
Transmission unit, for according to the transmission number of repetition, carrying out data transmission by predetermined manner.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；It is described
RepeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields are used for
It indicates to repeat the maximum number of times of transmission max_tx transmitted when repeatingTrans-Index instructions repeat free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, second transmission unit is specifically used for following at least one：If downlink transfer and transmission repetition time
Number is pre-determined number n times, and Downlink Control Information DCI is received on PDCCH and obtains DL assignment；In the DL
N number of transmission time unit specified assignment repeats to receive described in data and use on specified PDSCH frequency locations
MCS and HARQ relevant parameter demodulating and decoding data specified DL assignment；If downlink transfer and transmission number of repetition be
Free time, DCI is received on PDCCH and obtains DL assignment and receives DCI on PDCCH per k transmission time unit
And obtain simplified DL assignment；In the k transmission that the DL assignment or DL assignment of simplification are specified
Between unit on specified PDSCH frequency locations repeat receive data and using the DL assignment specify MCS and
HARQ relevant parameter demodulating and decoding data；If uplink and number of repetition is transmitted as pre-determined number n times, is referred in UL grant
Fixed N number of transmission time unit repeats transmission data on specified PUSCH frequency locations, to the base station；It is passed if uplink
Defeated and transmission number of repetition is free time, in k specified the UL grant or UL grant of simplification transmission time unit, in institute
It states on the specified PUSCH frequency locations of UL grant of UL grant or simplification, transmission data is repeated to the base station.
On the other hand, the present invention also provides a kind of base stations, including carry out the processor of data processing, for data storage
Memory and the data collector for sending and/or receiving for data, the memory are used to store the finger for realizing measuring configuration
It enables, the processor is used to execute the instruction of the memory storage, when the processor executes the finger of the memory storage
When enabling, the step of execution, includes：The transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition include
Pre-determined number N or free times；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission number
According to until the receiving terminal feedback acknowledgment information ACK or send have reached the maximum transmission times max_tx when, the transmitting terminal
Repeat the number sent；According to the transmission number of repetition, carry out data transmission by predetermined manner.
Optionally, the transmission number of repetition of the configuration data transmission includes：According to channel quality indicator (CQI), number is configured
According to the transmission number of repetition of transmission.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields.
Optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
On the other hand, the present invention also provides a kind of user equipmenies, including carry out the processor of data processing, deposited for data
The memory of storage and the data collector for sending and/or receiving for data, the memory realize measuring configuration for storing
Instruction, the processor is used to execute the instruction of memory storage, when the processor executes the memory storage
Instruction when, the step of execution includes：Receive the notice signaling of base station and the transmission number of repetition of data therefrom transmission, institute
It includes pre-determined number N or free times to state transmission number of repetition；Wherein, N is positive integer；It is described free time to correspond to transmitting terminal always
It repeats to receiving terminal transmission data until the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times
When max_tx, the transmitting terminal repeats the number sent；According to the transmission number of repetition, data biography is carried out by predetermined manner
It is defeated.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；It is described
RepeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields are used for
It indicates to repeat the maximum number of times of transmission max_tx transmitted when repeatingTrans-Index instructions repeat free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Transmission side data subtraction unit and relevant device provided in an embodiment of the present invention are capable of the transmission weight of configuration data transmission
Again then number and notice signaling repeat wherein transmission number of repetition includes pre-determined number N or free times according to the transmission of configuration
Number carries out data transmission.It avoids frequently to feed back and retransmit in HARQ in this way, thus greatly reduces the transmission of data
Time delay.
Description of the drawings
Fig. 1 is a kind of flow chart of data transmission method provided in an embodiment of the present invention；
Fig. 2 is that the data transmission procedure of data transmission method provided in an embodiment of the present invention and data in the prior art pass
The signaling comparison diagram of defeated process；
Fig. 3 is another flow chart of data transmission method provided in an embodiment of the present invention；
Fig. 4 is a kind of detail flowchart of data transmission method provided in an embodiment of the present invention；
Fig. 5 is the PDSCH resources that downlink transfer base station is distributed to UE when number of repetition is free secondary in the embodiment of the present invention
Schematic diagram；
Fig. 6 is a kind of structural schematic diagram of data transmission device provided in an embodiment of the present invention；
Fig. 7 is another structural schematic diagram of data transmission device provided in an embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, the present invention is not limited.
As shown in Figure 1, the embodiment of the present invention provides a kind of data transmission method, including：
S11, the transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition includes pre-determined number
N or free times；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until institute
It states receiving terminal feedback acknowledgment information ACK or sends when having reached the maximum transmission times max_tx, the transmitting terminal repeats to send
Number；
S12 is carried out data transmission according to the transmission number of repetition by predetermined manner.
Data transmission method provided in an embodiment of the present invention is capable of the transmission number of repetition and notice letter of configuration data transmission
It enables, wherein transmission number of repetition includes pre-determined number N or free times, data biography is then carried out according to the transmission number of repetition of configuration
It is defeated.It avoids frequently to feed back and retransmit in HARQ in this way, thus greatly reduces the propagation delay time of data.
Optionally, in step s 11, the transmission number of repetition of configuration data transmission may include：Referred to according to channel quality
Show CQI, the transmission number of repetition of configuration data transmission.
Specifically, the notice signaling may include the main configuration information element MAC- of media access control-
MainConfig information element；The MAC-MainConfig information element include repeating
Transmission index repeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max words
Section.Wherein, optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Configuration data transmission transmission number of repetition and notice signaling after, optionally, can in step s 12 according to
Predetermined manner carries out data transmission.Optionally, the predetermined manner may include following one or more：DL is distributed according to downlink
Assignment is transmitted；According to DL assignment and the DL assignment transmission simplified；According to uplink scheduling authorization UL
Grant is transmitted；According to UL grant and the UL grant transmission simplified.
The data transmission procedure of data transmission method provided in an embodiment of the present invention and data transmission mistake in the prior art
The signaling comparison of journey can be as shown in Figure 2.As it can be seen that carrying out pre-determined number N or free configurations by transmitting number of repetition, then
Carried out data transmission according to the transmission number of repetition of configuration, you can avoid frequently feeding back and retransmitting in HARQ, to drop significantly
The low propagation delay time of data.
Specifically, the DL assignment may include that downlink data is corresponding following one or more of：
Transmission time unit indicates；
Physical Downlink Shared Channel PDSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
Wherein, the HARQ relevant parameters include following one or more of parameters：New data instruction NDI, HARQ process numbers,
Redundant version number RV.
Optionally, transmission time unit instruction may include：Transmission time cell type and/or transmission time unit
Position, the transmission time cell position attach most importance to multiple transmission data multiple transmission time units position.Optionally, the biography
Defeated time quantum type includes following at least one：Transmission Time Interval TTI, mini-slot mini-slot.
Specifically, continuous each other between multiple transmission time cell positions or interval setting；
If transmission number of repetition is pre-determined number n times, the transmission time cell position indicates N number of transmission time unit
Time location；
If transmission number of repetition is free time, the transmission time cell position indicate k transmission time unit when
Between position, wherein k is related to CQI, and k be more than 0 and less than the max_tx integer.
Optionally, the UL grant may include that upstream data is corresponding following one or more of：
Transmission time unit indicates；
Physical Uplink Shared Channel PUSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
Optionally, the DL assignment of the simplification are sent primary per k transmission time unit；The DL of the simplification
Assignment may include that downlink data is corresponding following one or more of：
The k transmission time unit respective positions；
MCS；
PDSCH frequency locations.
Optionally, the UL grant of the simplification are sent primary per k transmission time unit；The UL grant of the simplification
It is corresponding following one or more of including upstream data：
The k transmission time unit respective positions；
MCS；
PUSCH frequency locations.
Further, in above-mentioned predetermined manner, which kind of carries out data transmission and transmits number of repetition and data using
Transmission direction is related.May include specifically following several situations：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；
If downlink transfer and transmission number of repetition is free secondary, according to DL assignment and the DL simplified
Assignment transmits UE data；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；
If uplink and transmission number of repetition is free secondary, and UE is transmitted according to UL grant and the UL grant simplified
Data.
Specifically, in one embodiment of the invention, transmitting terminal is base station, receiving terminal UE, according to DL
Assignment transmits UE data, can specifically include：
The base station repeats transmission UE data on N number of transmission time unit that DL assignment are specified, wherein institute
State N number of different redundancy versions RV that repetition is transmitted as one transmission block TB of transmission；It is described to repeat transmission using DL assignment
Specified MCS, PDSCH frequency location, HARQ relevant parameters.
Specifically, in another embodiment of the present invention, the transmitting terminal is base station, the receiving terminal is UE, according to
DL assignment and the DL assignment transmission UE data simplified may include：
Preceding k repetition is transmitted, and the base station repeats to transmit on the k transmission time unit that DL assignment are specified
UE data, wherein the repetition is transmitted as the k difference RV of one TB of transmission；It is described to repeat transmission using DL assignment
Specified MCS, PDSCH frequency location, HARQ relevant parameters；
K+1 times and repetition transmission later, base station is on the k transmission time unit that simplified DL assignment are specified
Repeat the data of transmission UE, wherein the repetition is transmitted as the k difference RV of one TB of circle transmission；The repetition transmission is adopted
With the specified HARQ correlations ginseng of simplified DL assignment MCS, PDSCH frequency locations specified and DL assignment
Number.
Specifically, in yet another embodiment of the present invention, the transmitting terminal is UE, the receiving terminal is base station；According to
UL grant transmit UE data：
The base station receives the UE and repeats the data of transmission UE on N number of transmission time unit that UL grant are specified simultaneously
Using the specified MCS and HARQ relevant parameter demodulating and decoding data, wherein the repetition is transmitted as the N of one TB of transmission
A difference RV；It is described to repeat MCS, PUSCH frequency location, the HARQ relevant parameters that transmission is specified using UL grant.
Specifically, in yet another embodiment of the present invention, the transmitting terminal is UE, the receiving terminal is base station；It is described
Include according to UL grant and the UL grant transmission UE data simplified：
Preceding k repetition is transmitted, and the base station receives the UE and repeated on the k transmission time unit that UL grant are specified
MCS the and HARQ relevant parameter demodulating and decoding data transmitted the data of UE and specified using the UL grant, wherein described heavy
It is transmitted as the k difference RV of one TB of transmission again；MCS, PUSCH frequency for repeating transmission and being specified using the UL grant
Position, HARQ relevant parameters；
K+1 times and repetition transmission later, the base station receive the UE in the k transmission that simplified UL grant are specified
Between repeat the data of transmission UE on unit and reconciled using MCS and HARQ relevant parameter solutions specified the UL grant of the simplification
Code data, wherein the repetition is transmitted as the k difference RV of one TB of circle transmission；The repetition is transmitted described using simplification
The specified specified HARQ relevant parameters of MCS, PUSCH frequency location and UL grant of UL grant.
In the embodiment of the present invention, since URLLC is packet services, transmission URLLC data packets, which are repeated several times, to be accounted for
With too many resource.Transmission, which is repeated several times, can obtain energy accumulation and be increased by transmitting different versions merging demodulation acquisition codings
Benefit.In addition, transmission is repeated several times and only feeds back an ACK/NACK, it is possible to reduce stop-times are waited, meet the time delay of parcel transmission
It is required that.
Correspondingly, as shown in figure 3, the embodiment of the present invention also provides a kind of data transmission method, including：
S21, receives the notice signaling of base station and the transmission number of repetition of data therefrom transmission, the transmission repeat secondary
Number includes pre-determined number N or free times；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal
Transmission data is described until the receiving terminal feedback acknowledgment information ACK or send when having reached the maximum transmission times max_tx
Transmitting terminal repeats the number sent；
S22 is carried out data transmission according to the transmission number of repetition by predetermined manner.
Data transmission method provided in an embodiment of the present invention can receive the transmission repetition time of the data transmission of base station configuration
Number and notice signaling, wherein transmission number of repetition includes pre-determined number N or free times, then according to the transmission number of repetition of configuration
Carry out data transmission.It avoids frequently to feed back and retransmit in HARQ in this way, thus greatly reduces the propagation delay time of data.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；It is described
RepeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields are used for
It indicates to repeat the maximum number of times of transmission max_tx transmitted when repeatingTrans-Index instructions repeat free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, described in step S22, carry out data transmission by predetermined manner include：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and Downlink Control Information DCI is received on PDCCH
And obtain DL assignment；In N number of transmission time unit that the DL assignment are specified in specified PDSCH frequencies
MCS the and HARQ relevant parameter demodulating and decoding data for receiving data and being specified using the DL assignment are repeated on position；
If downlink transfer and transmission number of repetition is free secondary, and DCI is received on PDCCH and obtains DL
Assignment and DCI is received on PDCCH and obtains simplified DL assignment per k transmission time unit；In DL
K specified the assignment or DL assignment of simplification transmission time unit weight on specified PDSCH frequency locations
MCS the and HARQ relevant parameter demodulating and decoding data that multiple connection is received data and specified using the DL assignment；
If uplink and number of repetition is transmitted for pre-determined number n times, in N number of transmission time list that UL grant are specified
Member repeats transmission data on specified PUSCH frequency locations, to the base station；
If uplink and transmission number of repetition is free secondary, in the k that the UL grant or UL grant of simplification are specified
A transmission time unit, the UL grant or UL grant of simplification specify PUSCH frequency locations on, to the base station
Repeat transmission data.
Data transmission method provided by the invention is described in detail below by specific embodiment.The present embodiment provides
Data transmission method can with as shown in figure 4, below according to different data transfer directions and transmission number of repetition configuration pair
Corresponding data transmission method is described in detail.
Embodiment 1
Step a：Base station selects suitable modulation coding scheme and number of repetition according to the channel condition of UE；
A.1 candidate modulation coding scheme can be as shown in table 1 for step；
Table 1
| Modulation system | Code check |
| QPSK | 1/12,1/6,1/3 |
| 16QAM | 1/12,1/6,1/3 |
The CQI divided ranks that base station is reported according to UE, and judge the suitable modulation coding scheme of CQI hierarchical selections of UE；
Specific correspondence is as shown in table 2：
2 CQI grades of table and MCS scheme correspondences
| CQI grades | MCS schemes |
| 1-2 | Using QPSK, code check 1/12 |
| 3-4 | Using QPSK, code check 1/6 |
| 5-6 | Using QPSK, code check 1/3 |
| 7-9 | Using 16QAM, code check 1/12 |
| 10-12 | Using 16QAM, code check 1/6 |
| 13-15 | Using 16QAM, code check 1/3 |
Step is a.2 according to CQI grade classifications as a result, base station is denoted as N according to the number of repetition of the CQI of UE selection UE data；
The number of repetition can be 1,2,4, free secondary；Described free time, refers to base station and repeat to send the data of UE always
Until UE feeding back ACKs or transmission have reached the maximum transmission times, the maximum number of times of transmission is denoted as Max_tx；
According to step a.1 in CQI grades, be transmitted using repetitive mode shown in table 3：
The correspondence of table 3 CQI grades and number of repetition
| CQI grades | Number of repetition |
| 1-2 | It repeats free time |
| 3-4 | It repeats free time |
| 5-6 | It is repeated 4 times |
| 7-9 | It is repeated 2 times |
| 10-12 | It is repeated 1 times |
| 13-15 | It is repeated 1 times |
Step b：Base station indicates number of repetition by RRC signaling to UE；
Base station is by rrc message member MAC-MainConfig information element instruction UE numbers of repetition and most
Big number of repetition, respectively such as field repeatingTrans-Index in table 4, shown in repeatingTrans-Max.
4 MAC-MainConfig information element field descriptions of table
RepeatingTrans-Index fields value is 11 in the present embodiment, i.e., number of repetition is free time；
Step c：Base station determines multiple transmission time units of transmission UE data, output transmission time unit instruction；
Wherein, the transmission time unit can be TTI, or mini-slot；The multiple transmission time unit
Can be continuous TTI, discontinuous TTI, continuous mini-slot, discontinuous mini-slot；The transmission time list
The number of member is the number of repetition that step 1 exports；The transmission unit instruction includes transmission time cell type, and for repeating
Send the position of multiple transmission time units of UE data；Transmission time cell type optional TTI or mini-slot, base station
According to the adaptive selection of communicating requirement；The position of transmission time unit is scheduled by base station, if number of repetition is 1,2,4
It is secondary, primary, 1,2,4 transmission time units of primary distribution are dispatched when base station is transmitted every time, wherein each transmission contains
1,2,4 repetition, each transmission can be transmission for the first time or retransmit；If number of repetition is free time, base station is per k
A transmission time unit to UE send once simplified DL assignment UL grant, the DL assignment of the simplification
K transmission time cell position, modulation coding scheme (MCS, Modulation and Coding are contained in UL grant
Scheme) and PDSCH PUSCH frequency locations, the size of k is related with CQI value；
For the transmission unit type used in this implementation for discontinuous TTI, number of repetition is free time.Take k=5, i.e. base
Standing, every 5 TTI scheduling is primary, and 5 TTI of primary distribution are then adjusted again if base station does not receive ACK after 5 TTI
Degree, reallocate 5 TTI, and so on.
Step d：Base station issues DL assignment；
It is downlink transfer in the present embodiment, transmitting terminal is base station, receiving terminal UE；
Base station passes through PDCCH transmitting signaling downwards DL assignment；
The DL assignment include：
Transmission time unit indicates, includes the position of transmission time cell type and transmission time unit
PDSCH frequency resources position；For example, in one embodiment of the invention, downlink when number of repetition is free secondary
Transmitting base station can be as shown in Figure 5 to the UE PDSCH resources schematic diagrames distributed；
Modulation coding scheme (MCS, Modulation and Coding Scheme)；
HARQ relevant parameters：New data indicates (NDI, New Data Indicator), HARQ process numbers, redundant version number
(RV, Redundancy Version).
In the DL assignment transmission time unit instruction specified by step c, the PDSCH frequency locations by
Base station determines according to the channel status of UE by certain scheduling rule, and the scheduling rule can be that time delay expire preferential tune
Degree, Proportional Fair, max carrier to interference scheduling；The time delay priority scheduling that expires is specially：Base station priority scheduling reaches soon
The UE of 1ms time delays limitation；
Since N is free time, the every 5 transmission time units in base station send simplified DL assignment to UE, indicate UE
MCS used in next 5 transmission time units and frequency resource position.
The base stations step e repeat transmission UE data；
Preceding 5 repetitions are transmitted, and base station repeats transmission UE's on 5 transmission time units that DL assignment are specified
Data, wherein the repetition is transmitted as 5 difference RV of one TB of transmission；The repetition transmission is referred to using DL assignment
Fixed MCS, PDSCH frequency location, HARQ relevant parameters；
5+1 later repetition transmission, base station is on 5 transmission time units that simplified DL assignment are specified
Repeat the data of transmission UE, wherein the repetition is transmitted as 5 difference RV of one TB of circle transmission；The repetition transmission is adopted
With the specified HARQ correlations ginseng of simplified DL assignment MCS, PDSCH frequency locations specified and DL assignment
Number；
Step f：UE receives UE data according to DL assignment；
UE receives DCI on PDCCH and obtains DL assignment and every 5 transmission time units receive on PDCCH
DCI simultaneously obtains simplified DL assignment；UE the DL assignment or DL assignment of simplification specify 5
Transmission time unit repeats to receive data and using specified MCS and HARQ relevant parameters on specified PDSCH frequency locations
Demodulating and decoding data；
Step g：UE sends feedback information；
The feedback information is ACK/NACK；
UE is to base station feedback ACK/NACK；If UE feeds back NACK, base station retransmits UE using identical iterative transfer times
Data.
In the present embodiment, by multiplicating send UE identical data packet different redundancy versions, can with cumlative energy,
Merge demodulation and increase coding gain, substantially increases the reliability of transmission.In bad channel conditions, needing to transmit could repeatedly reach
It is larger according to original HARQ scheme time delay to reliability requirement, and using this programme can reduce HARQ stop-wait the times, it is full
Sufficient low time delay requirement.Since the symbolic number that mini-slot itself includes is just seldom, time delay after being repeated as many times transmission is introduced
It can be in 1ms.For example, subcarrier spacing is 60k, each mini-slot occupies 2 symbols, then the time of a mini-slot
For 1000*2/60k=1/30ms, that is, 0.033ms, it is much smaller than 1ms.
Data transmission method provided in an embodiment of the present invention, it is ensured that each user in cell can accurately receive
To data, even the user that channel quality is very poor, using this programme it is also ensured that data are properly received.This programme can be with
The user for having looked after MPS process edge ensure that the fairness of community user.
Embodiment 2
The present embodiment step a to step c is identical to step c as step a in embodiment 1；The present embodiment is uplink；
Step d：Base station issues UL grant；
It is uplink in the present embodiment, transmitting terminal UE, receiving terminal is base station；
Base station passes through PDCCH transmitting signaling downwards UL grant；
The UL grant include：
Transmission time unit indicates, includes the position of transmission time cell type and transmission time unit；
PUSCH frequency resources position；
MCS；
HARQ relevant parameters：NDI, HARQ process number, RV；
The instruction of transmission time unit is specified by step c in the UL grant, and the PUSCH frequency locations are by base station root
It is determined by certain scheduling rule according to the channel status of UE, the scheduling rule can be that time delay expire priority scheduling, ratio
Equity dispatching, max carrier to interference scheduling；The time delay priority scheduling that expires is specially：Base station priority scheduling reaches 1ms time delays soon
The UE of limitation；
Since number of repetition is free time, the every 5 transmission time units in base station send simplified UL grant, instruction to UE
MCS used in the next 5 transmission time units of UE and frequency resource position.
Step e UE repeat transmission UE data；
Preceding 5 repetitions are transmitted, and UE repeats to transmit the data of UE on 5 transmission time units that UL grant are specified,
In, the repetition is transmitted as 5 difference RV of one TB of transmission；The MCS that transmission is specified using UL grant described repeatedly,
PUSCH frequency locations, HARQ relevant parameters；
5+1 later repetition transmission, UE repeat to transmit on 5 transmission time units that simplified UL grant are specified
The data of UE, wherein the repetition is transmitted as 5 difference RV of one TB of circle transmission；It is described to repeat transmission using simplification
The specified HARQ relevant parameters of MCS, PUSCH frequency location and UL grant specified UL grant；
Step f：Base station receives UE data according to UL grant；
Base station is in 5 specified the UL grant or UL grant of simplification transmission time units in specified PUSCH frequencies
It repeats to receive data and using specified MCS and HARQ relevant parameter demodulating and decoding data on position；
Step g：Base station sends feedback information；
The feedback information is ACK/NACK；
Base station is to UE feeding back ACKs/NACK；If base station feedback NACK, UE retransmit UE using identical iterative transfer times
Data.
Embodiment 3
The present embodiment step a is identical as step a in embodiment 1；RepeatingTrans-Index in the present embodiment step b
Field value is 00 or 01 or 10, i.e. number of repetition is 1,2,4 times, remaining concrete operations is identical as step b in embodiment 1；This
Embodiment is downlink transfer；
Step c：Base station determines multiple transmission time units of transmission UE data, output transmission time unit instruction；
The transmission unit type used in this implementation is discontinuous TTI, number of repetition 1,2,4 times.It is being repeated 1 times
When, each TTI scheduling in base station is primary, distributes a TTI transmission data；When being repeated 2 times transmission, the TTI scheduling of base station two is primary,
2 TTI of primary distribution；When being repeated 4 times transmission, the TTI scheduling of base station 4 is primary, and 4 TTI of primary distribution are used for transmission data；
Step d：Base station issues DL assignment；
Base station passes through PDCCH transmitting signaling downwards DL assignment；
The DL assignment include following one or more：
Transmission time unit indicates, includes the position of transmission time cell type and transmission time unit；
PDSCH frequency resources position；
Modulation coding scheme (MCS, Modulation and Coding Scheme)；
HARQ relevant parameters：New data indicates (NDI, New Data Indicator), HARQ process numbers, redundant version number
(RV, Redundancy Version)；
In the DL assignment transmission time unit instruction specified by step c, the PDSCH frequency locations by
Base station determines according to the channel status of UE by certain scheduling rule, and the scheduling rule can be that time delay expire preferential tune
Degree, Proportional Fair, max carrier to interference scheduling；The time delay priority scheduling that expires is specially：Base station priority scheduling reaches soon
The UE of 1ms time delays limitation；
The base stations step e repeat transmission UE data；
N is 1,2,4, and base station repeats to transmit the data of UE on N number of transmission time unit that DL assignment are specified,
Wherein, the repetition be transmitted as one transmission block (TB, Transmission Block) of transmission N number of different redundancy versions (RV,
Redundancy Version)；
It is described to repeat MCS, PDSCH frequency location, the HARQ relevant parameters that transmission is specified using DL assignment.
Step f：UE receives UE data according to DL assignment；
N is 1,2,4, UE to be received on PDCCH and DCI and obtain DL assignment；UE is specified in DL assignment
N number of transmission time unit repeat to receive data and related using specified MCS and HARQ on specified PDSCH frequency locations
Parametric demodulation decoding data；
Step g：UE sends feedback information；
The feedback information is ACK/NACK；
UE is to base station feedback ACK/NACK；If UE feeds back NACK, base station retransmits UE using identical iterative transfer times
Data.
Embodiment 4
The present embodiment step a to step c is identical to step c as step a in embodiment 3；The present embodiment is uplink；
Step d：Base station issues UL grant；
Base station passes through PDCCH transmitting signaling downwards UL grant；
The UL grant include following one or more：
Transmission time unit indicates, includes the position of transmission time cell type and transmission time unit；
PUSCH frequency resources position；
MCS；
HARQ relevant parameters：NDI, HARQ process number, RV；
The instruction of transmission time unit is specified by step c in the UL grant, and the PUSCH frequency locations are by base station root
It is determined by certain scheduling rule according to the channel status of UE, the scheduling rule can be that time delay expire priority scheduling, ratio
Equity dispatching, max carrier to interference scheduling；The time delay priority scheduling that expires is specially：Base station priority scheduling reaches 1ms time delays soon
The UE of limitation；
Step e UE repeat transmission UE data；
N is 1,2,4, the UE data that transmission UE is repeated on N number of transmission time unit that UL grant are specified, wherein institute
State repetition be transmitted as one transmission block (TB, Transmission Block) of transmission N number of different redundancy versions (RV,
Redundancy Version)；
It is described to repeat MCS, PUSCH frequency location, the HARQ relevant parameters that transmission is specified using UL grant.
Step f：Base station receives UE data according to UL grant；
N is 1,2,4, and base station is heavy on specified PUSCH frequency locations in N number of transmission time unit that UL grant are specified
Multiple connection receives data and using specified MCS and HARQ relevant parameter demodulating and decoding data；
Step g：Base station sends feedback information；
The feedback information is ACK/NACK；
Base station is to UE feeding back ACKs/NACK；If base station feedback NACK, UE retransmit UE using identical iterative transfer times
Data.
Embodiment 5
In the present embodiment, transmission time cell type is continuous TTI or continuous mini-slot or discontinuous
Mini-slot, remaining operating procedure is with embodiment 1 or with embodiment 2 or with embodiment 3 or with embodiment 4.
Correspondingly, as shown in fig. 6, the embodiment of the present invention also provides a kind of data transmission device, including：
Dispensing unit 61, for the transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition
Including pre-determined number N or free times；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal hair
Data are sent until the receiving terminal feedback acknowledgment information ACK or sending when having reached the maximum transmission times max_tx, the hair
It penetrates end and repeats the number sent；
First transmission unit 62 is carried out for the transmission number of repetition according to the configuration of described dispensing unit by predetermined manner
Data transmission.
Data transmission device provided in an embodiment of the present invention is capable of the transmission number of repetition and notice letter of configuration data transmission
It enables, wherein transmission number of repetition includes pre-determined number N or free times, data biography is then carried out according to the transmission number of repetition of configuration
It is defeated.It avoids frequently to feed back and retransmit in HARQ in this way, thus greatly reduces the propagation delay time of data.
Optionally, dispensing unit 61 are particularly used according to channel quality indicator (CQI), the transmission weight of configuration data transmission
Again it counts.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields.
Optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, the DL assignment include that downlink data is corresponding following one or more of：
Transmission time unit indicates；
Physical Downlink Shared Channel PDSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
Optionally, transmission time unit instruction includes：Transmission time cell type and/or transmission time unit position
Set, the transmission time cell position attach most importance to multiple transmission data multiple transmission time units position.
Optionally, the UL grant include that upstream data is corresponding following one or more of：
Transmission time unit indicates；
Physical Uplink Shared Channel PUSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
Optionally, the DL assignment of the simplification are sent primary per k transmission time unit；
The DL assignment of the simplification include that downlink data is corresponding following one or more of：
The k transmission time unit respective positions；
MCS；
PDSCH frequency locations.
Optionally, the UL grant of the simplification are sent primary per k transmission time unit；
The UL grant of the simplification include that upstream data is corresponding following one or more of：
The k transmission time unit respective positions；
MCS；
PUSCH frequency locations.
Optionally, the predetermined manner is related with transmission number of repetition and data transfer direction, including following a kind of or several
Kind：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；
If downlink transfer and transmission number of repetition is free secondary, according to DL assignment and the DL simplified
Assignment transmits UE data；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；
If uplink and transmission number of repetition is free secondary, and UE is transmitted according to UL grant and the UL grant simplified
Data.
Correspondingly, as shown in fig. 7, the embodiment of the present invention also provides a kind of data transmission device, including：
Receiving unit 71, the transmission number of repetition of notice signaling and data therefrom transmission for receiving base station, institute
It includes pre-determined number N or free times to state transmission number of repetition；Wherein, N is positive integer；It is described free time to correspond to transmitting terminal always
It repeats to receiving terminal transmission data until the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times
When max_tx, the transmitting terminal repeats the number sent；
Second transmission unit 72, for according to the transmission number of repetition, carrying out data transmission by predetermined manner.
Data transmission device provided in an embodiment of the present invention can receive the transmission repetition time of the data transmission of base station configuration
Number and notice signaling, wherein transmission number of repetition includes pre-determined number N or free times, then according to the transmission number of repetition of configuration
Carry out data transmission.It avoids frequently to feed back and retransmit in HARQ in this way, thus greatly reduces the propagation delay time of data.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；It is described
RepeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields are used for
It indicates to repeat the maximum number of times of transmission max_tx transmitted when repeatingTrans-Index instructions repeat free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Optionally, second transmission unit, is specifically used for：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and Downlink Control Information DCI is received on PDCCH
And obtain DL assignment；In N number of transmission time unit that the DL assignment are specified in specified PDSCH frequencies
MCS the and HARQ relevant parameter demodulating and decoding data for receiving data and being specified using the DL assignment are repeated on position；
If downlink transfer and transmission number of repetition is free secondary, and DCI is received on PDCCH and obtains DL
Assignment and DCI is received on PDCCH and obtains simplified DL assignment per k transmission time unit；In DL
K specified the assignment or DL assignment of simplification transmission time unit weight on specified PDSCH frequency locations
MCS the and HARQ relevant parameter demodulating and decoding data that multiple connection is received data and specified using the DL assignment；
If uplink and number of repetition is transmitted for pre-determined number n times, in N number of transmission time list that UL grant are specified
Member repeats transmission data on specified PUSCH frequency locations, to the base station；
If uplink and transmission number of repetition is free secondary, in the k that the UL grant or UL grant of simplification are specified
A transmission time unit, the UL grant or UL grant of simplification specify PUSCH frequency locations on, to the base station
Repeat transmission data.
Correspondingly, the embodiment of the present invention also provides a kind of base station, including carries out the processor of data processing, is used for data
The memory of storage and the data collector for sending and/or receiving for data, the memory are matched for storing realization and measuring
The instruction set, the processor are used to execute the instruction of the memory storage, are deposited when the processor executes the memory
When the instruction of storage, the step of execution, includes：
Configuration data transmission transmission number of repetition and notice signaling, the transmission number of repetition include pre-determined number N or
Free time；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until described
When receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats transmission
Number；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
Optionally, the transmission number of repetition of the configuration data transmission includes：According to channel quality indicator (CQI), number is configured
According to the transmission number of repetition of transmission.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；The MAC-MainConfig information element include repeating transmission index
RepeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields.
Optionally, the repeatingTrans-Index fields are used to indicate UE transmission numbers of repetition；It is described
RepeatingTrans-Max fields are used to indicate to be repeated to transmit when repeatingTrans-Index instructions repeat free secondary
Maximum number of times of transmission max_tx.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
Correspondingly, the embodiment of the present invention also provides a kind of user equipment, including carries out the processor of data processing, is used for
The memory of data storage and the data collector for sending and/or receiving for data, the memory are realized for storage and are surveyed
The instruction of configuration is measured, the processor is used to execute the instruction of the memory storage, when the processor executes the storage
When the instruction of device storage, the step of execution, includes：
Receive the notice signaling of base station and the transmission number of repetition of data therefrom transmission, the transmission number of repetition packet
It includes pre-determined number N or free times；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission
Data are until the receiving terminal feedback acknowledgment information ACK or send when having reached the maximum transmission times max_tx, the transmitting
End repeats the number sent；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
Optionally, the notice signaling includes the main configuration information element MAC-MainConfig of media access control-
information element；
The MAC-MainConfig information element include repeating transmission index repeatingTrans-
Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；The repeatingTrans-
Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields, which are used to indicate, to be worked as
RepeatingTrans-Index instructions repeat the maximum number of times of transmission max_tx of transmission when repeating free secondary.
Optionally, the predetermined manner includes following at least one：DL assignment transmission is distributed according to downlink；Root
According to DL assignment and the DL assignment transmission simplified；It is transmitted according to uplink scheduling authorization UL grant；According to UL
Grant and the UL grant transmission simplified.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer, clothes
Be engaged in device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (45)
1. a kind of data transmission method, which is characterized in that including：
The transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition includes pre-determined number N or free
It is secondary；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until the reception
When end feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats the number sent；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
2. according to the method described in claim 1, it is characterized in that, the transmission number of repetition of configuration data transmission includes：
According to channel quality indicator (CQI), the transmission number of repetition of configuration data transmission.
3. according to the method described in claim 1, it is characterized in that, the notice signaling includes media access control-mainly matches
Set information word MAC-MainConfig information element；The MAC-MainConfig information
Element includes repeating transmission index repeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission
RepeatingTrans-Max fields.
4. according to the method described in claim 3, it is characterized in that, the repeatingTrans-Index fields are used to indicate
UE transmits number of repetition；The repeatingTrans-Max fields are used to indicate when repeatingTrans-Index indicates weight
The maximum number of times of transmission max_tx of transmission is repeated when multiple free secondary.
5. method according to claim 1 to 4, which is characterized in that the predetermined manner include it is following at least
It is a kind of：DL assignment transmission is distributed according to downlink；It is passed according to DL assignment and the DL assignment simplified
It is defeated；It is transmitted according to uplink scheduling authorization UL grant；According to UL grant and the UL grant transmission simplified.
6. according to the method described in claim 5, it is characterized in that, the DL assignment include that downlink data is corresponding
Following at least one：
Transmission time unit indicates；
Physical Downlink Shared Channel PDSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
7. according to the method described in claim 6, it is characterized in that, the HARQ relevant parameters include following at least one ginseng
Number：New data indicates NDI, HARQ process numbers, redundant version number RV.
8. according to the method described in claim 6, it is characterized in that, transmission time unit instruction includes：Transmission time list
Element type and/or transmission time cell position, the transmission time cell position are attached most importance to multiple transmission times of multiple transmission data
The position of unit.
9. according to the method described in claim 8, it is characterized in that, the transmission time cell type includes following at least one
Kind：Transmission Time Interval TTI, mini-slot mini-slot.
10. according to the method described in claim 8, it is characterized in that,
Continuous each other or interval setting between multiple transmission time cell positions；
If transmission number of repetition be pre-determined number n times, the transmission time cell position indicate N number of transmission time unit when
Between position；
If it is free time to transmit number of repetition, the transmission time cell position indicates the when meta position of k transmission time unit
It sets, wherein k is related to CQI, and k is the integer more than 0 and less than the max_tx.
11. according to the method described in claim 5, it is characterized in that, the UL grant include that upstream data is corresponding following
It is at least one：
Transmission time unit indicates；
Physical Uplink Shared Channel PUSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
12. according to the method described in claim 5, it is characterized in that, when the DL assignment of the simplification are transmitted per k
Between unit send it is primary；
The DL assignment of the simplification include that downlink data is corresponding following at least one：
The k transmission time unit respective positions；
MCS；
PDSCH frequency locations.
13. according to the method described in claim 5, it is characterized in that, the UL grant of the simplification are per k transmission time unit
It sends primary；
The UL grant of the simplification include that upstream data is corresponding following at least one：
The k transmission time unit respective positions；
MCS；
PUSCH frequency locations.
14. according to the method described in claim 5, it is characterized in that, the predetermined manner is passed with transmission number of repetition and data
Defeated direction is related, including following at least one：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；
If downlink transfer and transmission number of repetition is free secondary, according to DL assignment and the DLassignment simplified
Transmit UE data；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；
If uplink and transmission number of repetition is free secondary, and UE numbers are transmitted according to UL grant and the UL grant simplified
According to.
15. according to the method for claim 14, which is characterized in that described to transmit UE data packets according to DL assignment
It includes：
The transmitting terminal is base station, and the receiving terminal is UE；
The base station repeats transmission UE data on N number of transmission time unit that DL assignment are specified, wherein described heavy
It is transmitted as N number of different redundancy versions RV of one transmission block TB of transmission again；The repetition transmission is specified using DL assignment
MCS, PDSCH frequency location, HARQ relevant parameters.
16. according to the method for claim 14, which is characterized in that described according to DL assignment and the DL simplified
Assignment transmits UE data：
The transmitting terminal is base station, and the receiving terminal is UE；
Preceding k repetition is transmitted, and the base station repeats transmission UE numbers on the k transmission time unit that DL assignment are specified
According to, wherein the repetition is transmitted as the k difference RV of one TB of transmission；The repetition transmission is specified using DL assignment
MCS, PDSCH frequency location, HARQ relevant parameters；
K+1 times and repetition transmission later, base station repeat on k specified transmission time unit of simplified DL assignment
Transmit the data of UE, wherein the repetition is transmitted as the k difference RV of one TB of circle transmission；It is described to repeat transmission using letter
The specified HARQ relevant parameters of MCS, PDSCH frequency location and DL assignment specified the DL assignment of change.
17. according to the method for claim 14, which is characterized in that described to include according to UL grant transmission UE data：
The transmitting terminal is UE, and the receiving terminal is base station；
The base station receives data and the use that the UE repeats transmission UE on N number of transmission time unit that UL grant are specified
The specified MCS and HARQ relevant parameter demodulating and decoding data, wherein the repetition be transmitted as one TB of transmission it is N number of not
Same RV；It is described to repeat MCS, PUSCH frequency location, the HARQ relevant parameters that transmission is specified using UL grant.
18. according to the method for claim 14, which is characterized in that described to be passed according to UL grant and the UL grant simplified
Defeated UE data include：
The transmitting terminal is UE, and the receiving terminal is base station；
Preceding k repetition is transmitted, and the base station receives the UE and repeats to transmit on the k transmission time unit that UL grant are specified
The data of UE and MCS the and HARQ relevant parameter demodulating and decoding data specified using the UL grant, wherein described to repeat to pass
The defeated k difference RV for one TB of transmission；MCS, PUSCH frequency position for repeating transmission and being specified using the UL grant
It sets, HARQ relevant parameters；
K+1 times and repetition transmission later, the base station receive the UE k transmission time lists specified in simplified UL grant
The data of transmission UE are repeated in member and using MCS and HARQ relevant parameter demodulating and decoding numbers specified the UL grant of the simplification
According to, wherein the repetition is transmitted as the k difference RV of one TB of circle transmission；The repetition is transmitted described using simplified UL
The specified HARQ relevant parameters of MCS, PUSCH frequency location and UL grant specified grant.
19. a kind of data transmission method, which is characterized in that including：
The notice signaling of base station and the transmission number of repetition of data therefrom transmission are received, the transmission number of repetition includes pre-
Determine times N or free time；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data
Until when the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal weight
Recur the number sent；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
20. according to the method for claim 19, which is characterized in that the notice signaling includes that media access control-is main
Configuration information element MAC-MainConfig information element；
The MAC-MainConfig information element include repeating transmission index repeatingTrans-
Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；The repeatingTrans-
Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields, which are used to indicate, to be worked as
RepeatingTrans-Index instructions repeat the maximum number of times of transmission max_tx of transmission when repeating free secondary.
21. the method according to claim 19 or 20, which is characterized in that the predetermined manner includes following at least one：
DL assignment transmission is distributed according to downlink；According to DL assignment and the DL assignment transmission simplified；According to
Uplink scheduling authorization UL grant transmission；According to UL grant and the UL grant transmission simplified.
22. according to the method for claim 21, which is characterized in that described to carry out data transmission including following by predetermined manner
It is at least one：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, Downlink Control Information DCI is received on PDCCH and is obtained
Take DL assignment；In N number of transmission time unit that the DL assignment are specified in specified PDSCH frequency locations
The upper MCS and HARQ relevant parameter demodulating and decoding data for repeating to receive data and specify using the DL assignment；
Be free time if downlink transfer and transmission number of repetition, DCI is received on PDCCH and obtain DL assignment and
DCI is received on PDCCH and obtains simplified DLassignment per k transmission time unit；In DL assignment or letter
K specified the DL assignment of change transmission time unit is repeated to receive data and be adopted on specified PDSCH frequency locations
MCS the and HARQ relevant parameter demodulating and decoding data specified with the DL assignment；
If uplink and number of repetition is transmitted as pre-determined number n times, is existed in N number of transmission time unit that UL grant are specified
On specified PUSCH frequency locations, transmission data is repeated to the base station；
If uplink and transmission number of repetition is free secondary, in the k biography that the UL grant or UL grant of simplification are specified
Defeated time quantum, the UL grant or UL grant of simplification specify PUSCH frequency locations on, to the base station repeat
Transmission data.
23. a kind of data transmission device, which is characterized in that including：
Dispensing unit, for the transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition includes pre-
Determine times N or free time；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data
Until when the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal weight
Recur the number sent；
First transmission unit carries out data biography for the transmission number of repetition according to the configuration of described dispensing unit by predetermined manner
It is defeated.
24. device according to claim 23, which is characterized in that the dispensing unit is specifically used for according to channel quality
Indicate CQI, the transmission number of repetition of configuration data transmission.
25. device according to claim 23, which is characterized in that the notice signaling includes that media access control-is main
Configuration information element MAC-MainConfig information element；The MAC-MainConfig information
Element includes repeating transmission index repeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission
RepeatingTrans-Max fields.
26. device according to claim 25, which is characterized in that the repeatingTrans-Index fields are for referring to
Show that UE transmits number of repetition；The repeatingTrans-Max fields are used to indicate when repeatingTrans-Index is indicated
The maximum number of times of transmission max_tx of transmission is repeated when repeating free secondary.
27. the device according to any one of claim 23 to 26, which is characterized in that the predetermined manner include with down toward
Few one kind：DL assignment transmission is distributed according to downlink；It is passed according to DL assignment and the DL assignment simplified
It is defeated；It is transmitted according to uplink scheduling authorization UL grant；According to UL grant and the UL grant transmission simplified.
28. device according to claim 27, which is characterized in that the DL assignment include that downlink data corresponds to
Following at least one：
Transmission time unit indicates；
Physical Downlink Shared Channel PDSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
29. device according to claim 28, which is characterized in that transmission time unit instruction includes：Transmission time
Cell type and/or transmission time cell position, the transmission time cell position attach most importance to multiple transmission data multiple transmission when
Between unit position.
30. device according to claim 27, which is characterized in that the UL grant include that upstream data is corresponding following
It is at least one：
Transmission time unit indicates；
Physical Uplink Shared Channel PUSCH frequency resources position；
Modulation coding scheme MCS；
Hybrid automatic repeat-request HARQ relevant parameters.
31. device according to claim 27, which is characterized in that the DL assignment of the simplification are per k when transmission
Between unit send it is primary；
The DL assignment of the simplification include that downlink data is corresponding following at least one：
The k transmission time unit respective positions；
MCS；
PDSCH frequency locations.
32. device according to claim 27, which is characterized in that the UL grant of the simplification are per k transmission time list
Member sends primary；
The UL grant of the simplification include that upstream data is corresponding following at least one：
The k transmission time unit respective positions；
MCS；
PUSCH frequency locations.
33. device according to claim 27, which is characterized in that the predetermined manner is passed with transmission number of repetition and data
Defeated direction is related, including following at least one：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to DL assignment；
If downlink transfer and transmission number of repetition is free secondary, according to DL assignment and the DL assignment simplified
Transmit UE data；
If uplink and number of repetition is transmitted as pre-determined number n times, and UE data are transmitted according to UL grant；
If uplink and transmission number of repetition is free secondary, and UE numbers are transmitted according to UL grant and the UL grant simplified
According to.
34. a kind of data transmission device, which is characterized in that including：
Receiving unit, the transmission number of repetition of notice signaling and data therefrom transmission for receiving base station, the transmission
Number of repetition includes pre-determined number N or free times；Wherein, N is positive integer；It is described it is free time correspond to transmitting terminal repeat always to
Receiving terminal transmission data is until the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx
When, the transmitting terminal repeats the number sent；
Second transmission unit, for according to the transmission number of repetition, carrying out data transmission by predetermined manner.
35. device according to claim 34, which is characterized in that the notice signaling includes that media access control-is main
Configuration information element MAC-MainConfig information element；
The MAC-MainConfig information element include repeating transmission index repeatingTrans-
Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；The repeatingTrans-
Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields, which are used to indicate, to be worked as
RepeatingTrans-Index instructions repeat the maximum number of times of transmission max_tx of transmission when repeating free secondary.
36. the device according to claim 34 or 35, which is characterized in that the predetermined manner includes following at least one：
DL assignment transmission is distributed according to downlink；According to DL assignment and the DL assignment transmission simplified；According to
Uplink scheduling authorization UL grant transmission；According to UL grant and the UL grant transmission simplified.
37. device according to claim 36, which is characterized in that second transmission unit is specifically used for, below at least
It is a kind of：
If downlink transfer and number of repetition is transmitted as pre-determined number n times, Downlink Control Information DCI is received on PDCCH and is obtained
Take DL assignment；In N number of transmission time unit that the DL assignment are specified in specified PDSCH frequency locations
The upper MCS and HARQ relevant parameter demodulating and decoding data for repeating to receive data and specify using the DL assignment；
Be free time if downlink transfer and transmission number of repetition, DCI is received on PDCCH and obtain DL assignment and
DCI is received on PDCCH and obtains simplified DL assignment per k transmission time unit；In DL assignment or
K specified simplified DL assignment transmission time unit repeats to receive data simultaneously on specified PDSCH frequency locations
MCS the and HARQ relevant parameter demodulating and decoding data specified using the DL assignment；
If uplink and number of repetition is transmitted as pre-determined number n times, is existed in N number of transmission time unit that UL grant are specified
On specified PUSCH frequency locations, transmission data is repeated to the base station；
If uplink and transmission number of repetition is free secondary, in the k biography that the UL grant or UL grant of simplification are specified
Defeated time quantum, the UL grant or UL grant of simplification specify PUSCH frequency locations on, to the base station repeat
Transmission data.
38. a kind of base station, which is characterized in that including carrying out the processor of data processing, for the memory and use of data storage
In the data collector that data send and/or receive, which is characterized in that the memory is used to store the finger for realizing measuring configuration
It enables, the processor is used to execute the instruction of the memory storage, when the processor executes the finger of the memory storage
When enabling, the step of execution, includes：
The transmission number of repetition and notice signaling of configuration data transmission, the transmission number of repetition includes pre-determined number N or free
It is secondary；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data until the reception
When end feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal repeats the number sent；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
39. according to the base station described in claim 38, which is characterized in that the transmission number of repetition packet of the configuration data transmission
It includes：
According to channel quality indicator (CQI), the transmission number of repetition of configuration data transmission.
40. according to the base station described in claim 38, which is characterized in that the notice signaling includes that media access control-is main
Configuration information element MAC-MainConfig information element；The MAC-MainConfig information
Element includes repeating transmission index repeatingTrans-Index fields and/or repetition transmission maximum number of times of transmission
RepeatingTrans-Max fields.
41. base station according to claim 40, which is characterized in that the repeatingTrans-Index fields are for referring to
Show that UE transmits number of repetition；The repeatingTrans-Max fields are used to indicate when repeatingTrans-Index is indicated
The maximum number of times of transmission max_tx of transmission is repeated when repeating free secondary.
42. the base station according to any one of claim 38 to 40, which is characterized in that the predetermined manner include with down toward
Few one kind：DL assignment transmission is distributed according to downlink；It is passed according to DL assignment and the DL assignment simplified
It is defeated；It is transmitted according to uplink scheduling authorization UL grant；According to UL grant and the UL grant transmission simplified.
43. a kind of user equipment, which is characterized in that including carrying out the processor of data processing, for the memory of data storage
With the data collector for sending and/or receiving for data, which is characterized in that the memory realizes measuring configuration for storing
Instruction, the processor is used to execute the instruction of memory storage, when the processor executes the memory storage
Instruction when, the step of execution includes：
The notice signaling of base station and the transmission number of repetition of data therefrom transmission are received, the transmission number of repetition includes pre-
Determine times N or free time；Wherein, N is positive integer；Described free time corresponding to transmitting terminal always repeatedly to receiving terminal transmission data
Until when the receiving terminal feedback acknowledgment information ACK or transmission have reached the maximum transmission times max_tx, the transmitting terminal weight
Recur the number sent；
According to the transmission number of repetition, carry out data transmission by predetermined manner.
44. user equipment according to claim 43, which is characterized in that the notice signaling includes media access control-
Main configuration information element MAC-MainConfig information element；
The MAC-MainConfig information element include repeating transmission index repeatingTrans-
Index fields and/or repetition transmission maximum number of times of transmission repeatingTrans-Max fields；The repeatingTrans-
Index fields are used to indicate UE transmission numbers of repetition；The repeatingTrans-Max fields, which are used to indicate, to be worked as
RepeatingTrans-Index instructions repeat the maximum number of times of transmission max_tx of transmission when repeating free secondary.
45. the user equipment according to claim 43 or 44, which is characterized in that the predetermined manner includes following at least one
Kind：DL assignment transmission is distributed according to downlink；According to DL assignment and the DL assignment transmission simplified；
It is transmitted according to uplink scheduling authorization UL grant；According to UL grant and the UL grant transmission simplified.
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| CN201710072849.3A CN108418659A (en) | 2017-02-10 | 2017-02-10 | A kind of data transmission method, device and relevant device |
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