CN103546195B - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN103546195B CN103546195B CN201210237392.4A CN201210237392A CN103546195B CN 103546195 B CN103546195 B CN 103546195B CN 201210237392 A CN201210237392 A CN 201210237392A CN 103546195 B CN103546195 B CN 103546195B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/0012—Hopping in multicarrier systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Abstract
The invention discloses a kind of data transmission method and device, this method includes：By frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position, wherein, the random sequence of frequency-hopping mode is initialized by cell ID and frame number；It is determined that Physical Resource Block frequency domain position corresponding to running time-frequency resource transmitting data.By the present invention, the coverage of data transfer is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method and device.
Background technology
In Long Term Evolution（Long Term Evolution, referred to as LTE）In system, descending to employ orthogonal frequency more
Location is accessed（Orthogonal Frequency Division Multiple Access, referred to as OFDMA）Technology, it is up to adopt
Accessed with he Single Carrier-Frequency Division multiple access（Single Carrier-Frequency Division Multiple Access, letter
Referred to as SC-FDMA）Technology, but use identical frequency process networking, inter-cell interference due to general（Inter-
CellInterference, referred to as ICI）Increase is obvious.In order to reduce ICI, LTE employs some Anti-Jamming Techniques, for example,
Descending inter-cell interference cancellation（Inter-Cell Interference Cancellation, referred to as ICIC）.Descending ICIC
Node B of the technology based on evolution（Evolved Node B, referred to as eNodeB）Relative Narrowband TX Power（Relative
Narrowband TX Power, referred to as RNTP）The method of limitation realizes the descending advance prompting function of interference, enhances physics
Downlink traffic channel（Physical Downlink Shared Channel, referred to as PDSCH）Covering performance；It is up to be based on
（High Interference Indication/Overload Indication, referred to as HII/OI）ICIC technologies, increase
Strong physical uplink Traffic Channel（Physical Uplink Shared Channel, referred to as PUSCH）Covering performance.
In addition, channel coding（Channel Coding）Technology and multiple-input and multiple-output（Multiple Input
Multiple Output, referred to as MIMO）Technology has significant contribution on link transmission performance is improved so that data can
Resist the various declines of channel.Wherein, MIMO technology can also be improved by space diversity, spatial reuse and beam forming technique
The covering performance and volumetric properties of LTE system, are particularly based on the coordinate multipoint that MIMO technology grows up（Coordinated
Multiple Point, referred to as CoMP）Technology.But, MIMO technology and CoMP technologies depend critically upon channel condition information
Measurement and feedback, wireless system is interior for a period of time in current and future, the low-down terminal of signal to noise ratio（User
Equipment, referred to as UE）Measurement and feedback to wireless channel are still bottleneck, and on the one hand feedback gets over complete and accurate, feedback
Amount is bigger, is a challenge to capacity and coverage distance, on the other hand for Quick-Change channel, and feedback delay and the degree of accuracy are difficult to protect
Barrier.So, for the limited UE of covering, closed-loop MIMO techniques and CoMP technologies are difficult to obtain due gain, and are often used
Simple and practical open loop MIMO techniques.Open loop MIMO techniques can save the basis of resource allocation overhead and channel feedback expense
On, diversity gain is obtained, simultaneously because dependence of the open loop technique to channel feedback is reduced, is typically mutually tied with resource frequency-hopping technology
Close.
Although there are multiple technologies in LTE system can improve the transmission performance of system, especially covering performance, pass through
Experimental Network is tested and emulation is found, the PUSCH of intermediate data rate, the PDSCH and ip voice of high data rate（Voice
Over IP, referred to as VoIP）Business is still the limited channel of covering performance in each channel in LTE system.It is wherein main former
Because being：The limited PUSCH and VoIP for causing intermediate data rate of UE transmit power is limited, and the ICI between base station causes height
The PDSCH of data rate is limited.This covering performance to LTE system proposes demand, is that this LTE system introduces transmission
Time interval（Transmission Time Interval, referred to as TTI）Binding（Bundling）Technology.TTI Bundling
Technology forms different redundancy versions to whole packet by channel coding, and different redundancy versions are respectively continuous multiple
Transmit, and transmitted in discrete multiple TTI also in assessment in TTI, TTI Bundling technologies are by taking more pass
Defeated resource, obtains coding gain and diversity gain, to obtain higher reception energy and link signal to noise ratio, so as to improve LTE systems
The covering power of system.Because TTI Bundling technologies are to exchange covering performance for by reducing spectrum efficiency, it is mainly used in noise
Than low-down terminal, covering performance can also be improved by diversity technique for the low-down UE of signal to noise ratio, such as by jumping
Frequency technology obtains frequency diversity gain.In existing LTE standard technology, TTI Bundling can make simultaneously with frequency hopping
With.
The class frequency hopping of LTE technical supports two, Class1 frequency hopping and the frequency hopping of type 2, wherein Class1 frequency hopping are unrelated with sub-band number, and
Type 2 is relevant with sub-band number.System results in more hopping positions by setting sub-band number, so as to obtain more multi-frequency point
Diversity gain, but in LTE system, because hopping position final in Type2 frequency hoppings passes through random sequence and random sequence
Function determine, so, under most subband arrangements, most hopping positions might not be resulted in.
For example, as shown in figure 1, between Type2 subframe in frequency-hopping method, because frequency hopping is using frame as the cycle, every 10 sons
Position in frame can repeat, and cause subframe 0（With respect to subframe numbers）With subframe 10（With respect to subframe numbers）Patrolled in distribution identical
Identical Physical Resource Block can be corresponded to by collecting resource.Fig. 2 is the situation between subframe in frequency-hopping method in Type2 subframes, with Fig. 1 classes
Seemingly.
Frequency diversity gain for data transmission method in correlation technique than relatively low causes the coverage of data transfer
Smaller the problem of, effective solution is not yet proposed at present.
The content of the invention
Frequency diversity gain for data transmission method in correlation technique than relatively low causes the coverage of data transfer
Smaller the problem of, the invention provides a kind of data transmission method and device, at least to solve the problem.
According to an aspect of the invention, there is provided a kind of data transmission method, including：Determine to be used for by frequency-hopping mode
The frequency domain position of Physical Resource Block in the time slot of data is sent, wherein, the random sequence of the frequency-hopping mode passes through cell ID
Initialized with frame number；It is determined that the Physical Resource Block frequency domain position corresponding to running time-frequency resource on transmit number
According to.
Preferably, c is passed throughinitInitialize random sequence,WhereinFor cell ID, nf
For frame number.
Preferably, by frequency-hopping mode determine for send data time slot in the frequency domain position of Physical Resource Block include：
Determine that time slot ns sends the frequency domain position n of data by below equationPRB：
Wherein,
Bias and index for Physical Resource Block,Bias and index for virtual resource blocks,Biased for frequency hopping,For the behaviour that rounded up to x
Make, fhop(i) it is subband hopping function,For the resource block number in subband, fm(i) it is mirror image hopping function, mod is modulus
Operation, NsbFor sub-band number, s is slot index, and i is frequency hopping variable.
Preferably, the frequency hopping variable i is determined one of in the following way：
Preferably, the fhop(i) determined by equation below：
Wherein, mod is mod, NsbFor sub-band number, c is the random sequence, and k is the sequence number of random sequence, and k is
Nonnegative integer.
Preferably, the fm(i) determined by equation below：
CURRENT_TX_NB is currently transmitted number of times.
Preferably, fm(i) corresponding formula is determined one of in the following way：
Radio resource control RRC layer message is indicated；
Resource grant message is indicated；
It is predefined.
Preferably,Determined by equation below：
Wherein,For the sum of resource block in the corresponding time slot of upstream bandwidth,Biased for frequency hopping,For to y
Downward floor operation.
Preferably,Determined by equation below：
Wherein,Biased for frequency hopping, nVRBVirtual resource blocks are indexed,For the operation that rounded up to x.
According to another aspect of the present invention there is provided a kind of data transmission device, including：Determining module, for by jumping
Frequency mode determine for send data time slot in Physical Resource Block frequency domain position, wherein, the stochastic ordering of the frequency-hopping mode
Row are initialized by cell ID and frame number；Transport module, for it is determined that the Physical Resource Block frequency domain position
Put corresponding running time-frequency resource transmitting data.
Preferably, the determining module determines random sequence by equation belowWhereinFor cell ID, nfFor frame number.
By the present invention, using the random sequence that frequency-hopping mode is initialized by cell ID and frame number, and according to this
The frequency domain position of Physical Resource Block in the time slot of frequency-hopping mode determination transmission data so that actual hopping position can be with subband
The increase of number and increase, solve in correlation technique because frequency diversity gain than relatively low causes the coverage of data transfer
Smaller the problem of, so as to improve the frequency diversity gain of data.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is resource frequency-hopping schematic diagram between the subframe according to the type 2 of correlation technique；
Fig. 2 be between the subframe according to the type 2 of correlation technique and subframe in resource frequency-hopping schematic diagram；
Fig. 3 is the flow chart of data transmission method according to embodiments of the present invention；
Fig. 4 is the structured flowchart of data transmission device according to embodiments of the present invention；
Fig. 5 be enhanced type 2 according to embodiments of the present invention subframe between resource frequency-hopping schematic diagram；And
Fig. 6 be enhanced type 2 according to embodiments of the present invention subframe between and subframe in resource frequency-hopping schematic diagram.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
This preferred embodiment provides a kind of data transmission method, and Fig. 3 is transmission side data according to embodiments of the present invention
The flow chart of method, as shown in figure 3, this method includes steps S302 to step S304.
Step S302：By frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position, its
In, the random sequence of the frequency-hopping mode is initialized by cell ID and frame number.
Step S304：It is determined that the Physical Resource Block frequency domain position corresponding to running time-frequency resource transmitting data.
By above-mentioned steps, using frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position
Put, wherein, the random sequence of the frequency-hopping mode is initialized by cell ID and frame number, is realized by cell ID
With frame number initialize frequency-hopping mode random sequence, and according to the frequency-hopping mode determine send data time slot in physical resource
The frequency domain position of block so that actual hopping position can increase with the increase of number of sub-bands, solve in correlation technique by
The problem of frequency diversity gain is smaller than the relatively low coverage for causing data transfer, so as to improve the frequency point of data
Diversity gain, and then improve the coverage of data transfer.
When implementing, step S304 can determine that time slot ns sends the frequency domain position n of data by below equationPRB：
Wherein,
Bias and index for Physical Resource Block,Bias and index for virtual resource blocks,Biased for frequency hopping,For the behaviour that rounded up to x
Make, fhop(i) it is subband hopping function,For the resource block number in subband, fm(i) it is mirror image hopping function, mod is modulus
Operation, NsbFor sub-band number, s is slot index, and i is frequency hopping variable.The preferred embodiment can improve the gain of frequency diversity.
Preferably, fhop(i) determined by equation below：
Wherein, mod is mod,
NsbFor sub-band number, c is random sequence, and k is the sequence number of random sequence, and k is nonnegative integer.
Preferably, fm(i) determined by equation below：
CURRENT_TX_NB is currently transmitted number of times.
In order to improve the flexibility of frequency hopping parameter determination, fm(i) corresponding formula is determined one of in the following way：
Mode one：Wireless heterogeneous networks（RRC）Layer message is indicated.
Mode two：Resource grant message is indicated.
Mode three：It is predefined.
Preferably,Determined by equation below：
Wherein,For the sum of resource block in the corresponding time slot of upstream bandwidth,Biased for frequency hopping,For to y
Downward floor operation.
Preferably,Determined by equation below：Wherein,Biased for frequency hopping,
nVRBVirtual resource blocks are indexed,For the operation that rounded up to x.
Corresponding to frequency hopping between frequency hopping and subframe in subframe, i can be determined as follows：
When implementing, random sequence can be determined by equation belowWhereinTo be small
Area is identified, nfFor frame number.
It should be noted that being used in this preferred embodimentA simply preferred realization
Mode, when implementing, cinitCan be withAnd nfFunction ornfWith the function of subframe sequence number, not shadow
Ring inventive method and principle.
Pass through cinitInitializing pseudo random sequence（Abbreviation random sequence）Refer to c directlyinitOr according to cinitParameter is generated to make
For the input parameter during generation random sequence.For example：
During (puppet) random sequence is generated according to register capacity for 31 Gold sequence, length is MPNIt is random
Sequence c (n), n=0,1 ..., MPN- 1 by being defined as below：
c(n)=(x1(n+NC)+x2(n+NC))mod2
x1(n+31)=(x1(n+3)+x1(n))mod2
x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2
Wherein, NC=1600, and m-sequence x1(n) x is passed through1(0)=1,x1(n) initialization of=0, n=1,2 ..., 30, m-sequence
x2(n) pass throughInitialization.
It should be noted that the initialization of random sequence is not limited to the above method.
It should be noted that can be in such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in computer system, and, although logical order is shown in flow charts, but in some cases, can be with not
The order being same as herein performs shown or described step.
In another embodiment, a kind of data transmission software is additionally provided, the software is used to perform above-described embodiment
And the technical scheme described in preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, the above-mentioned data that are stored with the storage medium are passed
Defeated software, the storage medium includes but is not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the present invention additionally provides a kind of data transmission device, and the data transmission device can be used for realizing above-mentioned number
According to transmission method and preferred embodiment, explanation was carried out, had been repeated no more, below to being related in the data transmission device
To module illustrate.As used below, term " module " can realize the software of predetermined function and/or the group of hardware
Close.Although the system and method described by following examples are preferably realized with software, hardware, or software and hardware
The realization of combination be also that may and be contemplated.
Fig. 4 is the structured flowchart of data transmission device according to embodiments of the present invention, as shown in figure 4, the device includes：Really
Cover half block 42, transport module 44, said structure is described in detail below.
Determining module 42, for by frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position
Put, wherein, the random sequence of frequency-hopping mode is initialized by cell ID and frame number；Transport module 44, is connected to really
Cover half block 42, number is transmitted on the running time-frequency resource corresponding to the frequency domain position of the Physical Resource Block determined in determining module 42
According to.
Preferably, determining module 42 determines random sequence by equation belowWherein
For cell ID, nfFor frame number.
Illustrated below in conjunction with preferred embodiment, preferred embodiment below combines above-described embodiment and is preferable to carry out
Mode.
Preferred embodiment one
This preferred embodiment provides a kind of frequency-hopping mode by enhanced ascending resource, can obtain more frequencies point
Diversity gain, and do not increase control overhead.
In the preferred embodiment, transmitting terminal by frequency hopping determine for send data time slot in Physical Resource Block frequency
Domain position, and initialize by following parameter the random sequence c in frequency hopping：Cell ID, frame number.Than preferably,
Preferably, intersubband Hopping functions fhop(i) it is determined as follows：
Preferably, Hopping functions f in subbandm(i) it is determined as follows：
In the preferred embodiment, when ascending frequency-hopping is opened, time slot nsIn be used for up transmission physical resource root tuber
Determined according to equation below：
Preferably, i is determined one of by the following method：
Preferably, subband（sub-band）Number NsbPass through rrc layer signal deployment.
Preferably, the resource block number in subbandDetermined by following formula：
Preferably,Determined by following formula：Wherein, nVRBFor virtual resource blocks,
Indicated by UL Grant signalings.
Preferably, Physical Resource Block nPRBDetermined by following formula：
Preferred embodiment two
This preferred embodiment provides a kind of data transmission method, and Fig. 5 is enhanced type 2 according to embodiments of the present invention
Subframe between resource frequency-hopping schematic diagram, as shown in figure 5, subframe 0 and subframe 8 are passed with retransmitting the resource-niche taken for the first of data
Put, subframe 2 is passed with retransmitting the resource location taken with subframe 10 for the first of data.
In the preferred embodiment, it can be carried out data transmission according to equation below：
Physical Resource Block biasing index：
（Formula 1）
Wherein, frequency hopping variable（Formula 2）
Wherein, subband hopping function（Formula 3）
Wherein, mirror image hopping function fm(i)=c (10*i) formula 4
Wherein, the resource block number in subband（Formula 5）
Wherein,（Formula 6）
（Formula 7）
The parameter value of this preferred embodiment is described below：
Nsb=4
nsFor from 0 to 39 integer sequence.
WhenIf when UL Grant indicate nVRB=[2,3], then according to predefined frequency hopping
Pattern, the Physical Resource Block n of time slot 0 ~ 39PRBIt is as shown in table 1 below：
The Physical Resource Block index n of the time slot 0~39 of table 1PRBSignal table 1
| ns=0 | ns=1 | ns=2 | ns=3 | ns=4 | ns=5 | ns=6 | ns=7 | ns=8 | ns=9 |
| 38 | 38 | 38 | 38 | 14 | 14 | 38 | 38 | 14 | 14 |
| 39 | 39 | 39 | 39 | 15 | 15 | 39 | 39 | 15 | 15 |
| ns=10 | ns=11 | ns=12 | ns=13 | ns=14 | ns=15 | ns=16 | ns=17 | ns=18 | ns=19 |
| 23 | 23 | 23 | 23 | 14 | 14 | 47 | 47 | 26 | 26 |
| 22 | 22 | 22 | 22 | 15 | 15 | 46 | 46 | 27 | 27 |
| ns=20 | ns=21 | ns=22 | ns=23 | ns=24 | ns=25 | ns=26 | ns=27 | ns=28 | ns=29 |
| 47 | 47 | 23 | 23 | 26 | 26 | 35 | 35 | 35 | 35 |
| 46 | 46 | 22 | 22 | 27 | 27 | 34 | 34 | 34 | 34 |
| ns=30 | ns=31 | ns=32 | ns=33 | ns=34 | ns=35 | ns=36 | ns=37 | ns=38 | ns=39 |
| 47 | 47 | 14 | 14 | 47 | 47 | 14 | 14 | 26 | 26 |
| 46 | 46 | 15 | 15 | 46 | 46 | 15 | 15 | 27 | 27 |
It should be noted that subframe 0 is changed with the position of the corresponding Physical Resource Block of subframe 10.
If random sequence still only byThe Physical Resource Block index n of time slot 0~39PRBIt is as shown in table 2.
The Physical Resource Block index n of the time slot 0~39 of table 2PRBSignal table 2
| ns=0 | ns=1 | ns=2 | ns=3 | ns=4 | ns=5 | ns=6 | ns=7 | ns=8 | ns=9 |
| 38 | 38 | 38 | 38 | 14 | 14 | 38 | 38 | 14 | 14 |
| 39 | 39 | 39 | 39 | 15 | 15 | 39 | 39 | 15 | 15 |
| ns=10 | ns=11 | ns=12 | ns=13 | ns=14 | ns=15 | ns=16 | ns=17 | ns=18 | ns=19 |
| 23 | 23 | 23 | 23 | 14 | 14 | 47 | 47 | 26 | 26 |
| 22 | 22 | 22 | 22 | 15 | 15 | 46 | 46 | 27 | 27 |
| ns=20 | ns=21 | ns=22 | ns=23 | ns=24 | ns=25 | ns=26 | ns=27 | ns=28 | ns=29 |
| 38 | 38 | 38 | 38 | 14 | 14 | 38 | 38 | 14 | 14 |
| 39 | 39 | 39 | 39 | 15 | 15 | 39 | 39 | 15 | 15 |
| ns=30 | ns=31 | ns=32 | ns=33 | ns=34 | ns=35 | ns=36 | ns=37 | ns=38 | ns=39 |
| 23 | 23 | 23 | 23 | 14 | 14 | 47 | 47 | 26 | 26 |
| 22 | 22 | 22 | 22 | 15 | 15 | 46 | 46 | 27 | 27 |
As can be seen from Table 2, subframe 0 does not change with the position of the corresponding Physical Resource Block of subframe 10, and should
A new hopping position 34 and 35 is have also appeared in enhancing frequency-hopping method.
Preferred embodiment three
This preferred embodiment provides a kind of data transmission method, and Fig. 6 is enhanced type 2 according to embodiments of the present invention
Subframe between and subframe in resource frequency-hopping schematic diagram, as shown in fig. 6, subframe 0 and subframe 8 are passed with retransmitting what is taken for the first of data
Resource location, subframe 2 is passed with retransmitting the resource location taken with subframe 10 for the first of data.
In the preferred embodiment, it can be carried out data transmission according to equation below：
Physical Resource Block biasing index：
（Formula 8）
Wherein, frequency hopping variable i=ns（Formula 9）
Wherein, subband hopping function（It is public
Formula 10）
Wherein, mirror image hopping function fm(i)=c (10*i) formula（11）
Wherein, the resource block number in subband（Formula
12）
Wherein,（Formula 13）
（Formula 14）
In the preferred embodiment, whenIf when UL Grant indicate nVRB=[2,3], then root
According to predefined frequency hopping Pattern, the Physical Resource Block n of time slot 0 ~ 39PRBAs shown in table 3.
The Physical Resource Block index n of the time slot 0~39 of table 3PRBSignal table 3
| ns=0 | ns=1 | ns=2 | ns=3 | ns=4 | ns=5 | ns=6 | ns=7 | ns=8 | ns=9 |
| 14 | 47 | 38 | 14 | 38 | 14 | 23 | 23 | 14 | 47 |
| 15 | 46 | 39 | 15 | 39 | 15 | 22 | 22 | 15 | 46 |
| ns=10 | ns=11 | ns=12 | ns=13 | ns=14 | ns=15 | ns=16 | ns=17 | ns=18 | ns=19 |
| 26 | 38 | 38 | 23 | 26 | 23 | 26 | 35 | 23 | 26 |
| 27 | 39 | 39 | 22 | 27 | 22 | 27 | 34 | 22 | 27 |
| ns=20 | ns=21 | ns=22 | ns=23 | ns=24 | ns=25 | ns=26 | ns=27 | ns=28 | ns=29 |
| 38 | 14 | 23 | 26 | 35 | 35 | 47 | 14 | 47 | 14 |
| 39 | 15 | 22 | 27 | 34 | 34 | 46 | 15 | 46 | 15 |
| ns=30 | ns=31 | ns=32 | ns=33 | ns=34 | ns=35 | ns=36 | ns=37 | ns=38 | ns=39 |
| 26 | 47 | 47 | 23 | 26 | 47 | 35 | 35 | 38 | 47 |
| 27 | 46 | 46 | 22 | 27 | 46 | 34 | 34 | 39 | 46 |
As seen from the above table, subframe 0 is changed with the position of the corresponding Physical Resource Block of subframe 10.
In the preferred embodiment, whenIf when UL Grant indicate nVRB=[2,3], then according to predefined frequency hopping
Pattern, the Physical Resource Block n of time slot 0 ~ 39PRBAs shown in table 4.
The Physical Resource Block index n of the time slot 0~39 of table 4PRBSignal table 4
| ns=0 | ns=1 | ns=2 | ns=3 | ns=4 | ns=5 | ns=6 | ns=7 | ns=8 | ns=9 |
| 14 | 47 | 38 | 14 | 38 | 14 | 23 | 23 | 14 | 47 |
| 15 | 46 | 39 | 15 | 39 | 15 | 22 | 22 | 15 | 46 |
| ns=10 | ns=11 | ns=12 | ns=13 | ns=14 | ns=15 | ns=16 | ns=17 | ns=18 | ns=19 |
| 26 | 38 | 38 | 23 | 26 | 23 | 26 | 35 | 23 | 26 |
| 27 | 39 | 39 | 22 | 27 | 22 | 27 | 34 | 22 | 27 |
| ns=20 | ns=21 | ns=22 | ns=23 | ns=24 | ns=25 | ns=26 | ns=27 | ns=28 | ns=29 |
| 14 | 47 | 38 | 14 | 38 | 14 | 23 | 23 | 14 | 47 |
| 15 | 46 | 39 | 15 | 39 | 15 | 22 | 22 | 15 | 46 |
| ns=30 | ns=31 | ns=32 | ns=33 | ns=34 | ns=35 | ns=36 | ns=37 | ns=38 | ns=39 |
| 26 | 38 | 38 | 23 | 26 | 23 | 26 | 35 | 23 | 26 |
| 27 | 39 | 39 | 22 | 27 | 22 | 27 | 34 | 22 | 27 |
As can be seen from the above table, subframe 0 does not change with the position of the corresponding Physical Resource Block of subframe 10.
By above-described embodiment there is provided a kind of data transmission method and device, actual frequency hopping in correlation technique is overcome
Position might not increase, the problem of causing that enough frequency diversity gains can not be obtained as number of sub-bands increases, and improve
Frequency diversity gain, and without increase control overhead.It should be noted that these technique effects are not above-mentioned all realities
What the mode of applying had, some have the technical effect that what some preferred embodiments could be obtained.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, so as to being stored in
Performed in storage device by computing device, they are either fabricated to each integrated circuit modules respectively or by them
Multiple modules or step single integrated circuit module is fabricated to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of data transmission method, it is characterised in that including：
By frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position, wherein, the frequency hopping side
The random sequence of formula is initialized by cell ID and frame number；
It is determined that the Physical Resource Block frequency domain position corresponding to running time-frequency resource transmitting data；
By frequency-hopping mode determine for send data time slot in the frequency domain position of Physical Resource Block include：Pass through below equation
Determine that time slot ns sends the frequency domain position n of dataPRB：
Wherein, For thing
Resource block biasing index is managed,Bias and index for virtual resource blocks,Biased for frequency hopping,For the operation that rounded up to x,
fhop(i) it is subband hopping function,For the resource block number in subband, fm(i) it is mirror image hopping function, mod is modulus behaviour
Make, NsbFor sub-band number, s is slot index, and i is frequency hopping variable；
The fhop(i) determined by equation below：
Wherein, mod is mod, NsbFor sub-band number, c is the random sequence, and k is the sequence number of random sequence, and k is non-negative
Integer.
2. the method according to claim 1, it is characterised in that pass through cinitInitialize random sequence,WhereinFor cell ID, nfFor frame number.
3. according to the method described in claim 1, it is characterised in that the frequency hopping variable i is determined one of in the following way：
4. the method according to any one of claim 2 to 3, it is characterised in that the fm(i) determined by equation below：
CURRENT_TX_NB is currently transmitted number of times.
5. method according to claim 4, it is characterised in that：fm(i) corresponding formula is determined one of in the following way：
Radio resource control RRC layer message is indicated；
Resource grant message is indicated；
It is predefined.
6. according to the method described in claim 1, it is characterised in thatDetermined by equation below：
Wherein,For the sum of resource block in the corresponding time slot of upstream bandwidth,Biased for frequency hopping,To be downward to y
Floor operation.
7. according to the method described in claim 1, it is characterised in thatDetermined by equation below：
Wherein,Biased for frequency hopping, nVRBVirtual resource blocks are indexed,For the operation that rounded up to x.
8. a kind of data transmission device, it is characterised in that including：
Determining module, for by frequency-hopping mode determine for send data time slot in Physical Resource Block frequency domain position, its
In, the random sequence of the frequency-hopping mode is initialized by cell ID and frame number；
Transport module, for it is determined that the Physical Resource Block frequency domain position corresponding to running time-frequency resource transmitting data；
Wherein, determine that time slot ns sends the frequency domain position n of data by below equationPRB：
Wherein, For thing
Resource block biasing index is managed,Bias and index for virtual resource blocks,Biased for frequency hopping,For the operation that rounded up to x,
fhop(i) it is subband hopping function,For the resource block number in subband, fm(i) it is mirror image hopping function, mod is modulus behaviour
Make, NsbFor sub-band number, s is slot index, and i is frequency hopping variable；
The fhop(i) determined by equation below：
Wherein, mod is mod, NsbFor sub-band number, c is the random sequence, and k is the sequence number of random sequence, and k is non-negative
Integer.
9. device according to claim 8, it is characterised in that the determining module determines random sequence by equation belowWhereinFor cell ID, nfFor frame number.
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| CN201210237392.4A CN103546195B (en) | 2012-07-10 | 2012-07-10 | Data transmission method and device |
| PCT/CN2013/079043 WO2014008847A1 (en) | 2012-07-10 | 2013-07-09 | Data transmission method and apparatus |
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| CN106464296B (en) * | 2014-08-07 | 2019-06-18 | 华为技术有限公司 | Transmit method, equipment and the system of data |
| CN105472532B (en) * | 2014-09-09 | 2020-11-17 | 中兴通讯股份有限公司 | Method and device for transmitting data |
| CN107534971B (en) * | 2015-05-15 | 2020-07-10 | 诸暨市元畅信息技术咨询服务部 | Frequency resource determination method and device |
| CN111654914B (en) * | 2015-09-08 | 2023-02-14 | 华为技术有限公司 | Method, network equipment and terminal equipment for uplink data transmission |
| CN110035515B (en) * | 2018-01-12 | 2024-02-27 | 中兴通讯股份有限公司 | Resource allocation method and device, storage medium and processor |
| CN111713028B (en) * | 2018-02-08 | 2021-09-07 | 华为技术有限公司 | Frequency hopping method and device |
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| CN101610231B (en) * | 2008-06-18 | 2013-06-05 | 中兴通讯股份有限公司 | Method and device for realizing frequency hopping |
| CN101651469B (en) * | 2008-08-15 | 2013-07-24 | 三星电子株式会社 | Frequency hopping method for sending uplink monitoring reference mark in LET system |
| US9374131B2 (en) * | 2009-01-28 | 2016-06-21 | Qualcomm Incorporated | Frequency hopping in a wireless communication network |
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