CN110519024A - Transmission method and device, storage medium, electronic device - Google Patents
Transmission method and device, storage medium, electronic device Download PDFInfo
- Publication number
- CN110519024A CN110519024A CN201810495459.1A CN201810495459A CN110519024A CN 110519024 A CN110519024 A CN 110519024A CN 201810495459 A CN201810495459 A CN 201810495459A CN 110519024 A CN110519024 A CN 110519024A
- Authority
- CN
- China
- Prior art keywords
- transmission
- subframe
- time interval
- transmission time
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of transmission method and device, storage medium, electronic devices, wherein, this method comprises: communication node repeats transmission data using the first Transmission Time Interval, wherein, described to repeat transmission in one or more second Transmission Time Intervals, second Transmission Time Interval includes multiple first Transmission Time Intervals.Through the invention, it solves unavailable or the technical issues of when next subframe type changes causes iterative transfer times insufficient and then not can guarantee reliability in the first short transmission time interval of next subframe behind cross-subframe boundary due to repeating transmission in the related technology.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of transmission method and device, storage medium, electronic device.
Background technique
In the related technology, fourth generation mobile communication technology (4G, the 4th Generation mobile
Communication technology) long term evolution (LTE, Long-Term Evolution)/senior long term evolution (LTE-
Advance/LTE-A, Long-Term Evolution Advance) and the 5th third-generation mobile communication technology (5G, the 5th
Generation mobile communication technology) demand that is faced is more and more, 4G and 5G system is all
Enhancing mobile broadband, ultrahigh reliability, the feature of ultralow time delay transmission, magnanimity connection are supported in research.
Business with short transmission time interval repeats transmission when allowing cross-subframe boundary, and can guarantee that low time delay leans on can
By characteristic, otherwise interrupting to repeat to transmit in sub-frame boundary causes reliability not can guarantee.If repeating transmission on cross-subframe boundary
It is unavailable or next subframe type changes in the first short transmission time interval of next subframe afterwards, it may cause repetition biography
Defeated number is insufficient and then not can guarantee reliability.
For the above problem present in the relevant technologies, at present it is not yet found that the solution of effect.
Summary of the invention
The embodiment of the invention provides a kind of transmission method and device, storage medium, electronic devices.
According to one embodiment of present invention, a kind of transmission method is provided, comprising: when communication node is using the first transmission
Between interval repeat transmission data, wherein it is described to repeat transmission and be located in one or more second Transmission Time Intervals, described second
Transmission Time Interval includes multiple first Transmission Time Intervals.
According to another embodiment of the invention, a kind of transmitting device is provided, comprising: transmission module, for using the
One Transmission Time Interval repeats transmission data, wherein and it is described to repeat transmission in one or more second Transmission Time Intervals,
Second Transmission Time Interval includes multiple first Transmission Time Intervals.
According to still another embodiment of the invention, a kind of storage medium is additionally provided, meter is stored in the storage medium
Calculation machine program, wherein the computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
According to still another embodiment of the invention, a kind of electronic device, including memory and processor are additionally provided, it is described
Computer program is stored in memory, the processor is arranged to run the computer program to execute any of the above-described
Step in embodiment of the method.
Through the invention, when the first Transmission Time Interval transmits data, the repetition based on the first Transmission Time Interval is passed
It is defeated to be located in one or more second Transmission Time Intervals, it solves in the related technology due to repeating transmission behind cross-subframe boundary
The first short transmission time interval of next subframe is unavailable or when next subframe type changes causes to repeat to transmit time
Number is insufficient the technical issues of not can guarantee reliability in turn, and the unambiguously transmission of communication node may be implemented, it is ensured that repeats to transmit
It can guarantee the highly reliable demand of low time delay, guarantee to repeat the correctness that transmission merges demodulation.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of transmission method according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of transmitting device according to an embodiment of the present invention；
Fig. 3 is the schematic diagram that the embodiment of the present invention divides short TTI in subframe subframe.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
A kind of transmission method is provided in the present embodiment, and Fig. 1 is the process of transmission method according to an embodiment of the present invention
Figure, as shown in Figure 1, the process includes the following steps:
Step S102, communication node repeat transmission data using the first Transmission Time Interval, wherein repeat transmission and be located at one
In a or multiple second Transmission Time Intervals, the second Transmission Time Interval includes multiple first Transmission Time Intervals.
Through the above steps, it when the first Transmission Time Interval repeats transmission data, repeats transmission and is located at one or more
In second Transmission Time Interval, the second Transmission Time Interval includes multiple first Transmission Time Intervals, is solved in the related technology
Due to repeating transmission behind cross-subframe boundary the first short transmission time interval of next subframe is unavailable or next subframe class
The technical issues of causing iterative transfer times insufficient when type changes and then not can guarantee reliability, communication node may be implemented
Unambiguously transmission, it is ensured that the highly reliable demand of low time delay can be guaranteed by repeating transmission, guarantee that repeating transmission merges the correct of demodulation
Property.
In the present embodiment, the first Transmission Time Interval include at least one of but be not limited to subslot, slot,
subframe；Second Transmission Time Interval includes but is not limited to subframe.
Optionally, the executing subject communication node of above-mentioned steps can be base station, terminal, relaying etc., but not limited to this.
Optionally, when repeating transmission in multiple second Transmission Time Intervals, in multiple second Transmission Time Intervals
First first Transmission Time Interval of non-first second Transmission Time Interval be used for transmission data.Data are used for transmission, also table
Show and be included in effective number of repetition, also illustrates that the Transmission Time Interval is available.
Optionally, the condition that first first Transmission Time Interval in the second Transmission Time Interval is used for transmission data includes
Following one: the control format instruction (Control Format Indicator, CFI)=1 being semi-statically configured, and dynamic instruction
CFI=1；The CFI=1 being semi-statically configured, and terminal is not intended to receive the CFI=2 of dynamic instruction or 3.
Optionally, transmission is being repeated in multiple second Transmission Time Intervals, and the second Transmission Time Interval is subframe
When, the transmission for the first time for repeating transmission is located at non-multimedia broadcast single frequency network (non-Multimedia Broadcast Single
Frequency Network, non-MBSFN) subframe n and it is configured to cell special reference signal (Cell-specific
Reference signals, CRS) transmission mode；It repeats all or part of non-transmission for the first time in transmission and is located at subframe n+1
And it is MBSFN sub-frame and is configured to customer special reference signal (UE-specific reference signals, DMRS)
Transmission mode, wherein Physical Downlink Shared Channel (the Physical Downlink Shared in subframe n+1
Channel, PDSCH) use transmission mode identical with subframe n, n is the integer not less than 0.
Optionally, transmission is being repeated in multiple second Transmission Time Intervals, and the second Transmission Time Interval is subframe
When, the m times transmission repeated in transmission is located at non-multimedia broadcast single frequency network non-MBSFN subframe n and is configured to cell
The transmission mode of special reference signal CRS；The m+1 times transmission in transmission is repeated to be located at subframe n+1 and be MBSFN sub-frame and configuration
For the transmission mode based on customer special reference signal DMRS, wherein the Physical Downlink Shared Channel in subframe n+1
PDSCH use transmission mode identical with subframe n, n are the integer not less than 0, and m is natural number.
Optionally, the PDSCH in subframe n+1 maps to the RE used in distributed resource area comprising DMRS.
Optionally, in subframe n+1, MBSFN is demodulated using the CRS in previous or the first two symbol of MBSFN sub-frame
PDSCH in subframe.
Optionally, before communication node repeats transmission data using the first Transmission Time Interval, further includes:
The redundancy versions pattern (Redundancy Version, RV) used is repeatedly transmitted in determination one of in the following manner
Pattern:
RV Pattern is preset or configured according to number of repetition；
Most P kind RV version set that default or configuration uses, wherein Downlink Control Information (Downlink Control
Information, DCI) in the domain RV indicated in RV version set；
Default or configuration RV Pattern, dynamic instruction originate RV, and starting RV is recycled, and are being recycled to P weight
When the RV of the last time k=1 transmitted again is not RV X, unsteady state operation to RV X, wherein X is default or the value and value of configuration
For one of { 0,1,2,3 }；
RV Pattern is indicated according to the domain RV in DCI, determines current transmission time interval in conjunction with the k value of notice
The RV version of (Transmission Time Interval, TTI), wherein the different the number of transmissions in same primary repetition transmission P
The RV instruction of k instruction is identical；
Wherein, 1≤k≤P, P indicate iterative transfer times, and P is the positive integer greater than 1.
Optionally, the last one RV version is RV0 in RV Pattern.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
Embodiment 2
A kind of transmitting device is additionally provided in the present embodiment, and the device is for realizing above-described embodiment and preferred implementation side
Formula, the descriptions that have already been made will not be repeated.As used below, the software of predetermined function may be implemented in term " module "
And/or the combination of hardware.Although device described in following embodiment is preferably realized with software, hardware or soft
The realization of the combination of part and hardware is also that may and be contemplated.
Fig. 2 is the structural block diagram of transmitting device according to an embodiment of the present invention, as shown in Fig. 2, the device includes:
Transmission module 20, for repeating transmission data using the first Transmission Time Interval, wherein repeat transmission and be located at one
Or in multiple second Transmission Time Intervals, the second Transmission Time Interval includes multiple first Transmission Time Intervals.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
Embodiment 3
The present embodiment purport in a communications system short transmission time interval business repeat transmission when allowing cross-subframe boundary,
It is unavailable or next subframe type changes in the first short transmission time interval of next subframe, solve how to support to repeat
The problem of transmission.
The application environment of the present embodiment is not limited to 4G or 5G system.By taking 4G LTE system as an example, compared with short transmission time interval
For short transmission time interval, i.e. sTTI, length is subslot (2/3 symbol) or slot (7 symbol)；Transmission Time Interval TTI is
Subframe, length 1ms.By taking 5G NR system as an example, compared with short transmission time interval be mini-slot, i.e., TTI length be 2 or
4 or 7 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, transmission
Time interval TTI is slot, and length is 14 OFDM symbols (normal CP).Following embodiment is illustrated from 4G system perspective
It is bright, it is not limited to 4G system.Communication node described in embodiment can be base station perhaps terminal or other communications
Network element in network.
The present embodiment further includes following implementation, can be used in combination in the case of no contradiction:
Embodiment 1
Fig. 3 is the schematic diagram that the embodiment of the present invention divides short TTI in subframe subframe, and short TTI is in son
It is divided in frame subframe as shown in figure 3, using Pattern1, as CFI=2, being used wherein as CFI=1 or 3
Pattern 2.But when supporting URLLC, since the reliability of PCFICH channel is insufficient, CFI detection mistake may cause, because
The determination of this CFI value is configured by RRC.PDSCH supports to carry out Repetition with the granularity of sTTI to support URLLC to need
It asks, while dispatching its (S) PDCCH and not repeating to transmit, but other than repeating in transmission for the first time, residue is repeated in transmission
It is each transmission can send (S) PDCCH, (S) PDCCH can not also be sent.Wherein wrapped in the DCI information of (S) PDCCH carrying
It is indicated containing number of repetition.Such as being repeated 3 times, the PDSCH transmission for the first time repeated in transmission is indicated to repeat by (S) PDCCH
Number k=3, terminal, which detects (S) PDCCH and receives in 3 sTTI, merges PDSCH.If (S) of PDSCH transmission for the first time
PDCCH is not detected, then continues to test (S) PDCCH for the second time repeat to transmit, indicate PDSCH number of repetition k=at this time
2, terminal, which detects (S) PDCCH and receives in 2 sTTI, merges PDSCH.
When sub-frame boundary is crossed in repetition transmission, such as transmission is repeated 3 times respectively using the subslot# of subframe#n
4, the subslot#0 of 5 and subframe#n+1 needs to guarantee that at this time subslot#0 is available.And the available item of subslot#0
Part is the CFI=1 of configuration.But since the CFI value of configuration may be different from the CFI value of dynamic instruction, if at this time UE according only to
It is available that the CFI=1 of configuration judges subslot#0, then as CFI=2 or 3 in practical dynamic instruction subframe#n+1, meeting
Lead to subslot#0 and unavailable, if UE merges the data for repeating transmission at this time, performance can be seriously affected, lead to data demodulation
Mistake cannot achieve high reliability.
To solve the above-mentioned problems, the scheme of present embodiment are as follows: for communication node, repeat transmission not when k times
It (repeats transmission when being located at same subframe entirely and crosses over sub-frame boundary), sTTI#0 is included in effective number of repetition (i.e. sTTI# at this time
0 is available) condition are as follows: configuration CFI=1 and dynamic instruction CFI=1.Alternatively, repeating transmission not when k times for communication point
It (repeats transmission when being located at same subframe entirely and crosses over sub-frame boundary), sTTI#0 is included in effective number of repetition (i.e. sTTI# at this time
0 is available) condition are as follows: configuration CFI=1, and UE is not intended to dynamic CFI=2 or 3 at this time.
For example, by repeat transmit 3 times for, when repeat transmission 3 times respectively using subframe#n subslot#4,5 with
And the subslot#0 of subframe#n+1, need to guarantee that subslot#0 is available at this time, i.e., the CFI=1 and dynamic configured at this time
The CFI=1 of instruction, i.e. UE are not intended to receive dynamic instruction CFI=2 or 3.Subframe#n is used respectively when repeating transmission 3 times
Subslot#4,5 and subframe#n+1 subslot#1, the subslot#0 of subframe#n+1 is unavailable at this time, i.e.,
The CFI=2 configured at this time or 3, terminal determine the subslot# in sTTI Pattern corresponding at this time according to the CFI value of configuration
0 is not useable for business transmission；Or the CFI=1 configured at this time, while dynamic instruction CFI=2 or 3 is received, terminal is according to configuration
CFI value determine that the subslot#0 in corresponding at this time sTTI Pattern is not useable for business transmission.
The present embodiment is not limited to the downlink traffic channel of LTE system.Such as: when PDSCH or PUSCH repeats transmission across son
When frame or boundary of time slot, and the transmission for the first time repeated in transmission at this time is located at subframe/slot#n, repeats the portion in transmission
Divide or whole non-transmission for the first time is located at subframe/slot#n+1, needs to guarantee subframe/ at this time under certain condition
First short transmission time interval is available in slot#n+1.The first available condition of short transmission time interval are as follows: the format of configuration refers to
Show that or dynamic instruction transmission direction identical as dynamic format instruction is available.Preferably, the format instruction is preferably: control
Format processed indicates, time slot format indicates, ascending resource indicates etc..When the format instruction of configuration is different from the instruction of dynamic format
When or dynamic instruction transmission direction it is unavailable when, then first short transmission time interval is unavailable in subframe/slot#n+1.
By a kind of repetitive transmission method described in present embodiment, by determining that repeating transmission is allowing cross-subframe boundary
When how to guarantee configuration CFI=1 when subslot#0 be available, base station and terminal side may be implemented and unambiguously transmit, really
The highly reliable demand of the low time delay of URLLC can be guaranteed by taking care of yourself multiple transmission, guarantee to repeat the correctness that transmission merges demodulation.
Embodiment 2
Short TTI is divided in subframe subframe as shown in figure 3, wherein as CFI=1 or 3, uses Pattern
1, as CFI=2, use Pattern 2.It, may since the reliability of PCFICH channel is insufficient but when supporting URLLC
CFI is caused to detect mistake, therefore the determination of CFI value is configured by RRC.PDSCH supports to carry out with the granularity of sTTI
Repetition is to support URLLC demand, while (S) PDCCH for dispatching it does not repeat to transmit, but in addition to repeating in transmission
Other than for the first time, residue, which repeats each transmission in transmission, can send (S) PDCCH, can not also send (S) PDCCH.Wherein
(S) it is indicated in the DCI information of PDCCH carrying comprising number of repetition.Such as being repeated 3 times, repeat in transmission for the first time
PDSCH transmission indicates number of repetition k=3 by (S) PDCCH, and terminal, which detects (S) PDCCH and receives in 3 sTTI, to be merged
PDSCH.If (S) PDCCH of PDSCH transmission is not detected for the first time, (S) is continued to test for the second time repeat to transmit
PDCCH indicates PDSCH number of repetition k=2 at this time, and terminal, which detects (S) PDCCH and receives in 2 sTTI, merges PDSCH.
When sub-frame boundary is crossed in repetition transmission, such as transmission is repeated 3 times respectively using the subslot# of subframe#n
4, the subslot#0 of 5 and subframe#n+1, or repeat transmission 3 times respectively using subframe#n subslot#5 with
And subframe#n+1 subslot#0,1, subslot#0 can be used for transmission services at this time.And at this time
Subframe#n is non-MBSFN subframe, and subframe#n+1 is MBSFN sub-frame.And non-MBSFN, which is configured with, at this time is based on
The transmission mode of CRS, and MBSFN sub-frame is configured with the transmission mode based on DMRS.So due in subframe#n+1 by
In there is no (S) PDCCH scheduling, or UE discarding (S) PDCCH having (S) PDCCH scheduling, cause to lack based on DMRS
The call parameter information of demodulation can not receive data in demodulation subframe#n+1.UE can not merge the number of repetition transmission at this time
According to can seriously affect performance, cannot achieve high reliability.
To solve the above-mentioned problems, the scheme of present embodiment are as follows: for communication node, repeat transmission not when k times
It (repeats transmission when being located at same subframe entirely and crosses over sub-frame boundary), the transmission for the first time for repeating transmission is located at non-MBSFN subframe n
And be configured to the transmission mode of CRS, repeat transmission in it is all or part of it is non-for the first time transmission be located at subframe n+1 and
For MBSFN sub-frame and it is configured to the transmission mode of DMRS, is now placed in subframe n+1 PDSCH still using being based on
The transmission mode of CRS does not transmit DMRS in PDSCH.
Further, the CRS in preceding 1 or preceding 2 symbol in the MBSFN sub-frame is used in subframe n+1.
For example, using non MBSFN subframe#n's respectively when repeating transmission 3 times for repeating to transmit 3 times
At this time the subslot#0 of subslot#4,5 and MBSFN subframe#n+1 need to guarantee that at this time subslot#0 is available, i.e.,
The CFI=1 of configuration and the CFI=1 of dynamic instruction, i.e. UE are not intended to receive dynamic instruction CFI=2.Non MBSFN at this time
Subframe configures TM2, and MBSFN subframe configures TM9.It is passed in the subslot#0 of MBSFN subframe#n+1 at this time
Defeated PDSCH still is based on CRS transmission mode, i.e. TM2, PDSCH transmission data and without transmitting DMRS, uses MBSFN sub-frame
In CRS solve adjusting data.In another example when repeat transmission 3 times respectively using subframe#n subslot#4,5 and
The subslot#1 of subframe#n+1, the subslot#0 of subframe#n+1 is unavailable at this time, i.e., the CFI=2 configured at this time,
Terminal determines that the subslot#0 in sTTI Pattern corresponding at this time is not useable for business transmission according to the CFI value of configuration, this
When non MBSFN subframe configure TM2, MBSFN subframe configure TM9.At this time MBSFN subframe#n+1's
The PDSCH transmitted in subslot#1 still is based on CRS transmission mode, i.e. TM2, PDSCH transmission data and without transmitting DMRS,
Adjusting data is solved using the CRS in MBSFN sub-frame.
The present embodiment is not limited to the downlink traffic channel of LTE system.Such as: when PDSCH or PUSCH repeats transmission across son
When frame or boundary of time slot, and the transmission for the first time repeated in transmission at this time is located at subframe/slot#n and is configured to transmission mode
A, repeatedly the non-transmission for the first time some or all of in transmission is configured to transmission mode B positioned at subframe/slot#n+1, at this time
Traffic Channel in subframe/slot#n+1 still uses and transmits identical transmission mode A for the first time.Preferably, position
Traffic Channel in subframe/slot#n+1 is without reference signal needed for transmitting transmission mode B.Preferably, it is located at
Reference signal needed for transmission mode A is used when Traffic Channel solution adjusting data in subframe/slot#n+1.
By a kind of repetitive transmission method described in present embodiment, by determining that repeating transmission is allowing cross-subframe boundary
When how to guarantee still can be properly received repetition transmission when lacking dynamic scheduling information when subframe type changes, can be with
Realize that base station and terminal side are unambiguously transmitted, it is ensured that the highly reliable demand of the low time delay of URLLC can be guaranteed by repeating transmission, guarantee weight
Multiple transmission merges the correctness of demodulation.
Embodiment 3
Short TTI is divided in subframe subframe as shown in figure 3, wherein as CFI=1 or 3, uses Pattern
1, as CFI=2, use Pattern 2.It, may since the reliability of PCFICH channel is insufficient but when supporting URLLC
CFI is caused to detect mistake, therefore the determination of CFI value is configured by RRC.PDSCH supports to carry out with the granularity of sTTI
Repetition is to support URLLC demand, while (S) PDCCH for dispatching it does not repeat to transmit, but in addition to repeating in transmission
Other than for the first time, residue, which repeats each transmission in transmission, can send (S) PDCCH, can not also send (S) PDCCH.Wherein
(S) it is indicated in the DCI information of PDCCH carrying comprising number of repetition.Such as being repeated 3 times, repeat in transmission for the first time
PDSCH transmission indicates number of repetition k=3 by (S) PDCCH, and terminal, which detects (S) PDCCH and receives in 3 sTTI, to be merged
PDSCH.If (S) PDCCH of PDSCH transmission is not detected for the first time, (S) is continued to test for the second time repeat to transmit
PDCCH indicates PDSCH number of repetition k=2 at this time, and terminal, which detects (S) PDCCH and receives in 2 sTTI, merges PDSCH.
When repeating to transmit support RV cycling, according to default or configuration RV pattern combination PDCCH instruction
RV pattern is recycled in current RV version, sequence.It is current to indicate such as when the RV pattern of configuration is { 0,2,3,1 }
RV version is RV3, repeats transmission 4 times, then transmission uses RV3,1,0,2 respectively every time.But since the low time delay height of URLLC can
By property demand, since RV0 has more systematic bits information, RV0 is possessed when merging decoding to be had more compared to no RV0
High reliability.Therefore for above-mentioned repeat transmission system, i.e., in addition to repeat transmission in for the first time other than, residue repeat transmission in
Transmission can send (S) PDCCH every time, can not also send (S) PDCCH, need to guarantee to repeat to transmit in RV0 always can be by
UE merges decoding and uses, it is therefore desirable to guarantee that the last time for repeating transmission is RV0.Problem to be solved is at this time: weight
How multiple transmission supports RV cycling and how to indicate RV, and realizes RV0 last.If do not solved, terminal is closed
And decode it cannot be guaranteed that always there is RV0, reliability cannot be guaranteed optimal.
To solve the above-mentioned problems, the present invention program is one of following methods: wherein P indicates iterative transfer times, k table
Show in repetition transmission each time.Mainly for most 3 repetitions transmission, (URLLC demand is that user plane time delay is no more than 1ms at this time
And reliability requirement 99.999%), k=4 can use the URLLC scene greater than 1ms.If number of repetition P=1, at this time
For single transmission, i.e. one kind is interpreted as being not necessarily at this time highly reliable, so RV can be indicated arbitrarily, not necessarily always needs RV0.
Method 1. determines RV pattern according to number of repetition.RV is preset or configured respectively for different numbers of repetition
Pattern。
For P=3,2,1 when is respectively { x, y, 0 }, { y, 0 }, { 0 }, such as: { 2,3,0 }, { 3,0 }, { 0 }.
RV0 or any RV is indicated when P=1, k=1；
Indicate RV3 when P=2, k=2, when k=1 indicates RV0；
Indicate RV2 when P=3, k=3, when k=2 indicates RV3, and when k=1 indicates RV0；
If it is considered that P=4, then pattern is { x, y, z, 0 }, and when k=4,3,2,1 indicates respectively RV x, y, z, 0, such as
X=2, y=3, z=1.
The flexible pattern of method 2. transmits most 3 repetitions, RRC or the default most 3 kinds of RV version sets used
It closes, dynamic RV instruction is indicated in the set.Since last 1 time is RV0, then k=3 indicates the RV version of non-RV0 a kind of,
K=2 can only uniquely indicate it is a kind of different from k=3 and k=1 when RV version.
RV0 or any RV is indicated when P=1, k=1；
Indicate any RV of non-RV0 when P=2, k=2, when k=1 indicates RV0
Indicate any RV of non-RV0 when P=3, k=3, when k=2 instruction different from k=3 RV and be different from the RV of RV0,
K=1 indicates RV0
Such as: it is { 0,1,3 } that RRC configuration, which is repeated 3 times the 3 kinds of RV versions used, when k=3 indicates that RV1, k=2 can only refer to
Show that RV3, k=3 indicate RV0；Or k=3 indicates that RV3, k=2 can only indicate that RV1, k=3 indicate RV0.
The feature of the pattern are as follows: RV pattern is not fixed, but the RV version sum used is determining.
If it is considered that P=4, then need fixed RV version wherein twice, wherein last time RV0, also need fixed primary.
Such as: fixed last 1 time is RV0 and inverse the 2nd time is RV3, then k=4 flexible notifications RV1 or RV2, k=3 notice are different from head
Secondary and last RV, k=2 and k=1 twice notifies RV3 and RV0. respectively
Method 3. indicates any starting RV, is recycled, the unsteady state operation if recycling is not RV0 to last 1 time
RV0；Such as: for being { 0,2,3,1 } with RV Pattern, realize RV0 always finally, P=3 is as shown in table 1, P=4 such as table 2
It is shown.Illustrate by taking Case 1 in wherein P=3 as an example, first instruction RV0, then 3 Pattern sheets transmitted according to { 0,2,3,1 }
RV0, RV2, RV3 should be distinguished, but last 1 time is not RV0, then unsteady state operation is RV0, i.e., 3 repetitions finally determined pass
Defeated RV is respectively RV0, RV2, RV0.Remaining case is similar, repeats no more.
RV when table 1, P=3
RV when table 2, P=4
| P=4 | K=4 | K=3 | K=2 | K=1 |
| Case1 | RV0 | RV2 | RV3 | RV0 |
| Case2 | RV2 | RV3 | RV1 | RV0 |
| Case3 | RV3 | RV1 | RV0 | RV0 |
| Case4 | RV1 | RV0 | RV2 | RV0 |
It can be seen that this method only need to define P=4 this table can because the institute it includes P=3 is in love
The case where condition, that similar also includes P=2.Here with Pattern for for { 0,2,3,1 }, other Pattern are also similar, other
Pattern such as { 0,3,0,3 }, { 0,0,0,0 } etc..
Method 4:RV field indicates Pattern, rather than the currently RV version of TTI；At this time in same primary repetition transmission P
The RV index of middle difference the number of transmissions k instruction be it is identical, the RV version of current TTI is determined in conjunction with the k value of notice.With table 3
For, 2-bit RV field indicates respectively 4 kinds of Pattern, wherein 00 indicates that { 0,0,0,0 }, 01 indicate { 2,3,1,0 }, 10
It indicates { 3,0,3,0 }, 11 indicate reserved or { 3,1,2,0 }.When same repetition transmission uses RV Pattern { 2,3,1,0 }
When, then k=3 indicates that RV field is 01 in P=3, i.e. RV Pattern is { 2,3,1,0 } and uses RV3 for the first time；If k=2
When (S) PDCCH also send, then RV field is also 01 at this time, i.e. RV Pattern be { 2,3,1,0 } and combine at this time k=2 it is true
Settled preceding TTI uses RV1；Remaining is repeated no more.
Table 3, the domain RV
| 2-bit RV field | K=4 | K=3 | K=2 | K=1 |
| 00 | RV0 | RV0 | RV0 | RV0 |
| 01 | RV2 | RV3 | RV1 | RV0 |
| 10 | RV3 | RV0 | RV3 | RV0 |
| 11 (Pattern can not also be indicated, as reserved) | RV3 | RV1 | RV2 | RV0 |
At this point in method 1-3,2-bit RV repeats to be different in the DCI of each PDCCH in transmission in PDSCH,
And the 2-bit RV of method 4 PDSCH repeat transmission in every time PDCCH DCI in be identical.
By a kind of repetitive transmission method described in present embodiment, by determining that repeating transmission is supporting RV cycling
When how to guarantee RV Pattern and indication scheme when RV0 is always received, base station and terminal side may be implemented and unambiguously transmit,
Ensure to repeat to transmit to guarantee the highly reliable demand of the low time delay of URLLC, guarantee that RV0 is always used, it is general to promote decoding correctness
Rate.
Embodiment 4
The embodiments of the present invention also provide a kind of storage medium, computer program is stored in the storage medium, wherein
The computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
Optionally, in the present embodiment, above-mentioned storage medium can be set to store by executing based on following steps
Calculation machine program:
S1 uses the first Transmission Time Interval to repeat transmission data, wherein described to repeat transmission and be located at one or more the
In two Transmission Time Intervals, second Transmission Time Interval includes multiple first Transmission Time Intervals.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
The various media that can store computer program such as disk, magnetic or disk.
The embodiments of the present invention also provide a kind of electronic device, including memory and processor, stored in the memory
There is computer program, which is arranged to run computer program to execute the step in any of the above-described embodiment of the method
Suddenly.
Optionally, above-mentioned electronic device can also include transmission device and input-output equipment, wherein the transmission device
It is connected with above-mentioned processor, which connects with above-mentioned processor.
Optionally, in the present embodiment, above-mentioned processor can be set to execute following steps by computer program:
S1 uses the first Transmission Time Interval to repeat transmission data, wherein described to repeat transmission and be located at one or more the
In two Transmission Time Intervals, second Transmission Time Interval includes multiple first Transmission Time Intervals.
Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment
Example, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of transmission method characterized by comprising
Communication node repeats transmission data using the first Transmission Time Interval, wherein the repetition transmission is located at one or more
In second Transmission Time Interval, second Transmission Time Interval includes multiple first Transmission Time Intervals.
2. the method according to claim 1, wherein repeating transmission between multiple second transmission times described
When middle, between first first transmission time of non-first second Transmission Time Interval in the multiple second Transmission Time Interval
Every being used for transmission data.
3. according to the method described in claim 2, it is characterized in that, first first in second Transmission Time Interval transmits
The condition that time interval is used for transmission data includes following one: the control format instruction CFI=1 being semi-statically configured, and dynamic
The CFI=1 of instruction；The CFI=1 being semi-statically configured, and terminal is not intended to receive the CFI=2 of dynamic instruction or 3.
4. method according to claim 1 or 2, which is characterized in that when the repetition transmission is located at the multiple second transmission
Between in interval, and when second Transmission Time Interval is subframe, to be located at non-multimedia wide for the transmission for the first time for repeating transmission
It broadcasts single frequency network non-MBSFN subframe n and is configured to the transmission mode of cell special reference signal CRS；It is described to repeat to transmit
In all or part of non-transmission for the first time be located at and subframe n+1 and be MBSFN sub-frame and be configured to customer special reference signal
The transmission mode of DMRS, wherein the Physical Downlink Shared Channel PDSCH use in the subframe n+1 is identical with subframe n
Transmission mode, n are the integer not less than 0.
5. method according to claim 1 or 2, which is characterized in that when the repetition transmission is located at the multiple second transmission
Between in interval, and when second Transmission Time Interval is subframe, the m time transmission repeated in transmission is positioned at non-multimedia
Broadcast single frequency network non-MBSFN subframe n and the transmission mode for being configured to cell special reference signal CRS；It is described to repeat to pass
The m+1 times transmission is located at subframe n+1 and is MBSFN sub-frame and the transmission for being configured to customer special reference signal DMRS in defeated
Mode, wherein the Physical Downlink Shared Channel PDSCH use transmission mode identical with subframe n in the subframe n+1, n
For the integer not less than 0, m is natural number.
6. method according to claim 4 or 5, which is characterized in that the PDSCH in the subframe n+1, which is mapped to, to be distributed
The RE used in resource area comprising DMRS.
7. method according to claim 4 or 5, which is characterized in that in the subframe n+1, use the MBSFN sub-frame
Previous or the first two symbol in CRS demodulation MBSFN sub-frame in PDSCH.
8. the method according to claim 1, wherein repeating to pass using the first Transmission Time Interval in communication node
Before transmission of data, the method also includes:
It determines one of in the following manner and described repeatedly transmits the redundancy versions pattern RVPattern used:
The RV Pattern is preset or configured according to number of repetition；
Most P kind RV version set that default or configuration uses, wherein the domain RV in Downlink Control Information DCI is RV editions described
It is indicated in this set；
Default or configuration RV Pattern, dynamic instruction originate RV, the starting RV are recycled, and are being recycled to P weight
When the RV of the last time k=1 transmitted again is not RV X, unsteady state operation to RV X, wherein X is default or the value and value of configuration
For one of { 0,1,2,3 }；
The RV Pattern is indicated according to the domain RV in DCI, and the RV of current transmission time interval TTI is determined in conjunction with the k value of notice
Version, wherein identical with the primary RV instruction for repeating difference the number of transmissions k instruction in transmission P；
Wherein, 1≤k≤P, P indicate iterative transfer times, and P is the positive integer greater than 1.
9. according to the method described in claim 8, it is characterized in that, the last one RV version is RV0 in the RV Pattern.
10. a kind of transmitting device characterized by comprising
Transmission module, for using the first Transmission Time Interval repeat transmission data, wherein it is described repeat transmission be located at one or
In multiple second Transmission Time Intervals, second Transmission Time Interval includes multiple first Transmission Time Intervals.
11. a kind of storage medium, which is characterized in that be stored with computer program in the storage medium, wherein the computer
Program is arranged to execute method described in any one of claim 1 to 9 when operation.
12. a kind of electronic device, including memory and processor, which is characterized in that be stored with computer journey in the memory
Sequence, the processor are arranged to run the computer program to execute side described in any one of claim 1 to 9
Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495459.1A CN110519024A (en) | 2018-05-22 | 2018-05-22 | Transmission method and device, storage medium, electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495459.1A CN110519024A (en) | 2018-05-22 | 2018-05-22 | Transmission method and device, storage medium, electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110519024A true CN110519024A (en) | 2019-11-29 |
Family
ID=68622238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810495459.1A Pending CN110519024A (en) | 2018-05-22 | 2018-05-22 | Transmission method and device, storage medium, electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110519024A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179200A1 (en) * | 2020-03-11 | 2021-09-16 | Qualcomm Incorporated | Coverage enhancement for downlink broadcast channel |
-
2018
- 2018-05-22 CN CN201810495459.1A patent/CN110519024A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179200A1 (en) * | 2020-03-11 | 2021-09-16 | Qualcomm Incorporated | Coverage enhancement for downlink broadcast channel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200092880A1 (en) | Method, apparatus and system for transmitting and receiving control channel of wireless communication system | |
| CN106063322B (en) | Terminal installation and base station apparatus | |
| CN105898872B (en) | Uplink transmission method and device | |
| CN103391563B (en) | Downlink control information sending method, detection method, base station and user equipment | |
| CN101827444B (en) | Signaling configuration system and method for measuring reference signal | |
| CN101795145B (en) | Sending method and system for measuring reference signals | |
| CN103812602B (en) | The method and apparatus of blind examination public search space and the specific search space UE | |
| CN102395206B (en) | Transmission method and equipment for downside control information | |
| JP5569652B2 (en) | Method for determining scheduled component carrier, user terminal, base station, and system | |
| CN105391517B (en) | The reception of control channel and sending method and device | |
| CN109121159A (en) | Blind examination capability reporting method, blind examination configuration, blind detection method, terminal and base station | |
| CN102088776B (en) | Method and equipment for scheduling feedback information resources | |
| US10993224B1 (en) | Method and device for transmitting information | |
| CN105763307B (en) | Downlink data transmission method and device and downlink data acquisition device | |
| CN110536459A (en) | A kind of repetitive transmission method and device, communication equipment and storage medium | |
| US20150146666A1 (en) | Method for transmitting and receiving control channel, base station, and user equipment | |
| CN104811263A (en) | Control information transmitting method and apparatus | |
| US10015001B2 (en) | Method and apparatus for transmitting and receiving system information | |
| CN109587798B (en) | Method and device for determining reference signal and control channel unit and storage medium | |
| CN107690190B (en) | A kind of method and apparatus in wireless communication | |
| CN107819714B (en) | Method and equipment in UE (user equipment) supporting variable subcarrier spacing and base station | |
| CN106685614B (en) | A kind of transmission method and equipment indicating information | |
| CN107040347A (en) | A kind of ascending transmission method and device | |
| CN103476120B (en) | The transmission of Physical Uplink Control Channel, processing method and processing device | |
| CN107027177A (en) | A kind of transmission of Downlink Control Information, detection method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |