CN103546195A - Data transmission method and data transmission device - Google Patents

Abstract

The invention discloses a data transmission method and a data transmission device. The method includes determining a frequency domain position of a physical resource block in a time slot used for sending data by means of frequency hopping, wherein a random sequence of the frequency hopping mode is initialized through a cell identity and a frame number; transmitting the data on time frequency resources corresponding to the determined frequency domain position of the physical resource block. By the data transmission method and the data transmission device, covering range of data transmission is expanded.

Description

Data transmission method and device

Technical field

The present invention relates to the communications field, in particular to a kind of data transmission method and device.

Background technology

At Long Term Evolution (Long Term Evolution, referred to as LTE) in system, descending OFDM access (the Orthogonal Frequency Division Multiple Access that adopted, referred to as OFDMA) technology, up single carrier-frequency division multiple access access (Single Carrier-Frequency Division Multiple Access that adopted, referred to as SC-FDMA) technology, but due to the networking of general employing identical frequency process, presence of intercell interference (Inter-CellInterference, referred to as ICI) increases obviously.In order to reduce ICI, LTE has adopted some Anti-Jamming Techniques, for example, and descending inter-cell interference cancellation (Inter-Cell Interference Cancellation, referred to as ICIC).Node B (the evolved Node B of descending ICIC technology based on evolution, referred to as eNodeB) Relative Narrowband TX Power (Relative Narrowband TX Power, referred to as RNTP) restriction method realize descending interference prompting function in advance, strengthened the covering performance of physical down Traffic Channel (Physical Downlink Shared Channel, referred to as PDSCH); Up based on (High Interference Indication/Overload Indication, referred to as HII/OI) ICIC technology, strengthened the covering performance of physical uplink Traffic Channel (Physical Uplink Shared Channel, referred to as PUSCH).

In addition, chnnel coding (Channel Coding) technology and multiple-input and multiple-output (Multiple Input Multiple Output, referred to as MIMO) technology has significant contribution improving in link transmission performance, makes data can resist the various declines of channel.Wherein, MIMO technology is passed through space diversity, spatial reuse and beam forming technique also can improve covering performance and the volumetric properties of LTE system, the coordinate multipoint that especially technical development is got up based on MIMO (Coordinated Multiple Point, referred to as CoMP) technology.But, MIMO technology and CoMP technology depend critically upon measurement and the feedback of channel condition information, wireless system is within current and following a period of time, the low-down terminal of signal to noise ratio (User Equipment, referred to as UE) remains bottleneck to the measurement of wireless channel and feedback, and feedback is got over complete and accurate on the one hand, feedback quantity is larger, to capacity and coverage distance, be a challenge, on the other hand for Quick-Change channel, feedback delay and accuracy are difficult to ensure.So for covering limited UE, closed-loop MIMO technology and CoMP technology are difficult to obtain due gain, and often adopt simple and practical open loop MIMO technology.Open loop MIMO technology can obtain diversity gain on the basis of saving resource assignment overhead and channel feedback expense, because open loop technique reduces the dependence of channel feedback, generally combines with resource frequency-hopping technology simultaneously.

Although there are multiple technologies in LTE system, can improve the transmission performance of system, especially covering performance, but network test and emulation are found by experiment, the PUSCH of intermediate data rate, the PDSCH of high data rate and ip voice (Voice over IP, referred to as VoIP) business remains in LTE system the limited channel of covering performance in each channel.Wherein main cause is: the transmitted power of UE is limited cause the PUSCH of intermediate data rate and VoIP limited, and ICI between base station causes the PDSCH of high data rate limited.This has proposed demand to the covering performance of LTE system, and LTE system has been introduced Transmission Time Interval (Transmission Time Interval, referred to as TTI) binding (Bundling) technology for this reason.TTI Bundling technology forms different redundancy versions to whole packet by chnnel coding, different redundancy versions transmits respectively in continuous a plurality of TTI, and transmit also in assessment in discrete a plurality of TTI, TTI Bundling technology is by taking more transfer resource, obtain coding gain and diversity gain, to obtain higher received energy and link signal to noise ratio, thereby improve the covering power of LTE system.Because TTI Bundling technology is to exchange covering performance for by reducing spectrum efficiency, be mainly used in the low-down terminal of signal to noise ratio, for signal to noise ratio, low-down UE can also improve covering performance by diversity technique, for example, by frequency hopping, obtain frequency diversity gain.In existing LTE standard technique, TTI Bundling and frequency hopping can be used simultaneously.

LTE technical support two class frequency hoppings, Class1 frequency hopping and type 2 frequency hoppings, wherein Class1 frequency hopping and sub band number are irrelevant, and type 2 is relevant with sub band number.System can obtain more frequency hopping position by setting sub band number, thereby obtain more multi-frequency diversity gain, but in LTE system, because frequency hopping position final in Type2 frequency hopping is determined by the function of random sequence and random sequence, so, even under maximum subband arrangement, might not obtain maximum frequency hopping positions.

For example, as shown in Figure 1, between the subframe of Type2 in frequency-hopping method, because frequency hopping be take frame as the cycle, position in every 10 subframes can be repeated, and causes the relative subframe numbers of subframe 0() subframe numbers relative to subframe 10() distributing the identical corresponding identical Physical Resource Block of logical resource meeting.Fig. 2 be in Type2 subframe and subframe between situation in frequency-hopping method, similar with Fig. 1.

The lower smaller problem of coverage that causes transfer of data of frequency diversity gain for data transmission method in correlation technique, not yet proposes effective solution at present.

Summary of the invention

The lower smaller problem of coverage that causes transfer of data of frequency diversity gain for data transmission method in correlation technique, the invention provides a kind of data transmission method and device, at least to address this problem.

According to an aspect of the present invention, a kind of data transmission method is provided, comprise: by frequency-hopping mode, be identified for sending the frequency domain position of Physical Resource Block in the time slot of data, wherein, the random sequence of described frequency-hopping mode is carried out initialization by cell ID and frame number; The corresponding running time-frequency resource transmitting data of frequency domain position at the described Physical Resource Block of determining.

Preferably, pass through c _initinitialization random sequence,

wherein for cell ID, n _ffor frame number.

Preferably, the frequency domain position that is identified for sending Physical Resource Block in the time slot of data by frequency-hopping mode comprises:

By following formula, determine that time slot ns sends the frequency domain position n of data _pRB:

Wherein, ${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}}),$

for Physical Resource Block biasing index,

for virtual resource blocks biasing index,

for frequency hopping biasing,

for operation that x is rounded up, f _hop(i) be subband hopping function,

for the resource block number in subband, f _m(i) be mirror image frequency hopping function, mod is modulo operation, N _sbfor sub band number, s is time slot sequence number, and i is frequency hopping variable.

Preferably, described frequency hopping variable i is determined one of in the following way:

Preferably, described f _hop(i) by following formula, determine:

$f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (\left((\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)\right)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right.$

Wherein, mod is mod, N _sbfor sub band number, c is described random sequence, the sequence number that k is random sequence, and k is nonnegative integer.

Preferably, described f _m(i) by following formula, determine:

$f_m\left(i\right)=i\mathrm{mod}2\left\{\begin{array}{cc}i\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andintraandinter}-\mathrm{subframehopping}\\ \mathrm{CURRENT}\_\mathrm{TX}\_\mathrm{NB}\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andinter}-\mathrm{subframehopping}\\ c(i\·10)& N_{\mathrm{sb}}>1\end{array}\right.;$

CURRENT_TX_NB is current transmission times.

Preferably, f _m(i) corresponding formula is determined one of in the following way:

The indication of radio resource control RRC layer message;

Resource grant message indication;

Predefine.

Preferably,

by following formula, determine:

Wherein,

for the sum of Resource Block in a time slot corresponding to upstream bandwidth,

for frequency hopping biasing,

for y is rounded to operation downwards.

Preferably,

by following formula, determine:

Wherein,

for frequency hopping biasing, n _vRBvirtual resource blocks index,

for operation that x is rounded up.

According to a further aspect in the invention, a kind of data transmission device is provided, has comprised: determination module, for be identified for sending the frequency domain position of the time slot Physical Resource Block of data by frequency-hopping mode, wherein, the random sequence of described frequency-hopping mode is carried out initialization by cell ID and frame number; Transport module, for the corresponding running time-frequency resource transmitting data of frequency domain position of the described Physical Resource Block determining.

Preferably, described determination module is determined random sequence by following formula wherein for cell ID, n _ffor frame number.

By the present invention, employing is by the random sequence of cell ID and frame number initialization frequency-hopping mode, and according to the frequency domain position of Physical Resource Block in the time slot of the definite transmission of this frequency-hopping mode data, actual frequency hopping position can be increased along with the increase of number of sub-bands, solve the smaller problem of coverage that causes transfer of data in correlation technique because frequency diversity gain is lower, thereby improved the frequency diversity gain of data.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is according to resource frequency-hopping schematic diagram between the subframe of the type 2 of correlation technique;

Fig. 2 be according between the subframe of the type 2 of correlation technique and subframe in resource frequency-hopping schematic diagram;

Fig. 3 is according to the flow chart of the data transmission method of the embodiment of the present invention;

Fig. 4 is according to the structured flowchart of the data transmission device of the embodiment of the present invention;

Fig. 5 is according to resource frequency-hopping schematic diagram between the subframe of the type 2 of the enhancing of the embodiment of the present invention; And

Fig. 6 be according between the subframe of the type 2 of the enhancing of the embodiment of the present invention and subframe in resource frequency-hopping schematic diagram.

Embodiment

Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.

This preferred embodiment provides a kind of data transmission method, and Fig. 3 is according to the flow chart of the data transmission method of the embodiment of the present invention, and as shown in Figure 3, the method comprises that following step S302 is to step S304.

Step S302: be identified for sending the frequency domain position of Physical Resource Block in the time slot of data by frequency-hopping mode, wherein, the random sequence of this frequency-hopping mode is carried out initialization by cell ID and frame number.

Step S304: at the corresponding running time-frequency resource transmitting data of frequency domain position of this Physical Resource Block of determining.

Pass through above-mentioned steps, adopt frequency-hopping mode to be identified for sending the frequency domain position of Physical Resource Block in the time slot of data, wherein, the random sequence of this frequency-hopping mode is carried out initialization by cell ID and frame number, realized by the random sequence of cell ID and frame number initialization frequency-hopping mode, and according to the frequency domain position of Physical Resource Block in the time slot of the definite transmission of this frequency-hopping mode data, actual frequency hopping position can be increased along with the increase of number of sub-bands, solved the smaller problem of coverage that causes transfer of data in correlation technique because frequency diversity gain is lower, thereby improved the frequency diversity gain of data, and then improved the coverage of transfer of data.

When implementing, step S304 can determine that time slot ns sends the frequency domain position n of data by following formula _pRB:

Wherein, ${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}}),$

for Physical Resource Block biasing index,

for virtual resource blocks biasing index,

for frequency hopping biasing,

for operation that x is rounded up, f _hop(i) be subband hopping function,

for the resource block number in subband, f _m(i) be mirror image frequency hopping function, mod is modulo operation, N _sbfor sub band number, s is time slot sequence number, and i is frequency hopping variable.The preferred embodiment can improve the gain of frequency diversity.

Preferably, f _hop(i) by following formula, determine:

$f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (\left((\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)\right)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right.;$ Wherein, mod is mod, N _sbfor sub band number, c is random sequence, the sequence number that k is random sequence, and k is nonnegative integer.

Preferably, f _m(i) by following formula, determine:

$f_m\left(i\right)=i\mathrm{mod}2\left\{\begin{array}{cc}i\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andintraandinter}-\mathrm{subframehopping}\\ \mathrm{CURRENT}\_\mathrm{TX}\_\mathrm{NB}\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andinter}-\mathrm{subframehopping}\\ c(i\·10)& N_{\mathrm{sb}}>1\end{array}\right.;$

CURRENT_TX_NB is current transmission times.

In order to improve the definite flexibility of frequency hopping parameter, f _m(i) corresponding formula is determined one of in the following way:

Mode one: Radio Resource is controlled the indication of (RRC) layer message.

Mode two: resource grant message indication.

Mode three: predefine.

Preferably,

by following formula, determine:

Wherein,

for the sum of Resource Block in a time slot corresponding to upstream bandwidth, for frequency hopping biasing,

for y is rounded to operation downwards.

Preferably,

by following formula, determine:

wherein, for frequency hopping biasing, n _vRBvirtual resource blocks index, for operation that x is rounded up.

Corresponding to frequency hopping between frequency hopping in subframe and subframe, i can determine in the following way:

When implementing, can determine random sequence by following formula

wherein

for cell ID, n _ffor frame number.

It should be noted that, in this preferred embodiment, adopt

be a preferred implementation, when implementing, c _initcan be with

and n _ffunction, can be also

n _fwith the function of subframe sequence number, do not affect inventive method and principle.

Pass through c _initinitializing pseudo random sequence (abbreviation random sequence) refers to directly by c _initor according to c _initgenerate parameter as the input parameter generating in random sequence process.For example:

In the Gold sequence that is 31 according to register capacity, generate in the process of (puppet) random sequence, length is M _pNrandom sequence c (n), n=0,1 ..., M _pN-1 by as give a definition:

c(n)=(x ₁(n+N _C)+x ₂(n+N _C))mod2

x ₁(n+31)=(x ₁(n+3)+x ₁(n))mod2

x ₂(n+31)=(x ₂(n+3)+x ₂(n+2)+x ₂(n+1)+x ₂(n))mod2

Wherein, N _c=1600, and m sequence x ₁(n) pass through x ₁(0)=1, x ₁(n)=0, n=1,2 ..., 30 initialization, m sequence x ₂(n) pass through $c_{\mathrm{init}}={\mathrm{\Σ}}_{i=0}^{30}{x}_2\left(i\right)\·2^i$ Initialization.

It should be noted that, the initialization of random sequence is not limited to said method.

It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.

In another embodiment, also provide a kind of data transmission software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.

In another embodiment, also provide a kind of storage medium, stored above-mentioned data transmission software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.

The embodiment of the present invention also provides a kind of data transmission device, this data transmission device can be for realizing above-mentioned data transmission method and preferred implementation, carried out explanation, repeated no more, below the module relating in this data transmission device had been described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.

Fig. 4 is according to the structured flowchart of the data transmission device of the embodiment of the present invention, and as shown in Figure 4, this device comprises: determination module 42, transport module 44, is described in detail said structure below.

Determination module 42, for be identified for sending the frequency domain position of the time slot Physical Resource Block of data by frequency-hopping mode, wherein, the random sequence of frequency-hopping mode is carried out initialization by cell ID and frame number; Transport module 44, is connected to determination module 42, for the corresponding running time-frequency resource transmitting data of the frequency domain position at the definite Physical Resource Block of determination module 42.

Preferably, determination module 42 is determined random sequence by following formula

wherein

for cell ID, n _ffor frame number.

Below in conjunction with preferred embodiment, describe, following preferred embodiment combines above-described embodiment and preferred implementation.

Preferred embodiment one

This preferred embodiment provides a kind of frequency-hopping mode of the ascending resource by enhancing, can obtain more frequency diversity gain, and not increase control overhead.

In this preferred embodiment, transmitting terminal is identified for sending the frequency domain position of Physical Resource Block in the time slot of data by frequency hopping, and carrys out the random sequence c in initialization frequency hopping by following parameter: cell ID, frame number.Compare preferably, $c_{\mathrm{init}}=N_{\mathrm{ID}}^{\mathrm{cell}}+\mathrm{mod}(n_f,10).$

Preferably, intersubband Hopping function f _hop(i) determine in the following way:

$f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (f_{\mathrm{hop}}(i-1)+\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (f_{\mathrm{hop}}(i-1)+(\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right..$

Preferably, Hopping function f in subband _m(i) determine in the following way:

$f_m\left(i\right)=i\mathrm{mod}2\left\{\begin{array}{cc}i\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andintraandinter}-\mathrm{subframehopping}\\ \mathrm{CURRENT}\_\mathrm{TX}\_\mathrm{NB}\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andinter}-\mathrm{subframehopping}\\ c(i\·10)& N_{\mathrm{sb}}>1\end{array}\right.;$

In this preferred embodiment, when ascending frequency-hopping is opened, time slot n _sin for the Physical Resource Block of up transmission, according to following formula, determine:

${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}}).$

Preferably, i determines one of by the following method:

Preferably, subband (sub-band) number N _sbby rrc layer signal deployment.

Preferably, the resource block number in subband

by following formula, determine:

Preferably,

by following formula, determine:

wherein, n _vRBfor virtual resource blocks, by UL Grant signaling, indicate.

Preferably, Physical Resource Block n _pRBby following formula, determine:

Preferred embodiment two

This preferred embodiment provides a kind of data transmission method, Fig. 5 is according to resource frequency-hopping schematic diagram between the subframe of the type 2 of the enhancing of the embodiment of the present invention, as shown in Figure 5, subframe 0 passes and retransmits the resource location taking with the head that subframe 8 is data, and subframe 2 passes and retransmits the resource location taking with the head that subframe 10 is data.

In this preferred embodiment, can carry out transfer of data according to following formula:

Physical Resource Block biasing index:

${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}})$ (formula 1)

Wherein, frequency hopping variable

(formula 2)

Wherein, subband hopping function $f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (\left((\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)\right)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right.$ (formula 3)

Wherein, mirror image frequency hopping function f _m(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:

$N_{\mathrm{RB}}^{\mathrm{UL}}=50;$

N _sb=4

$N_{\mathrm{RB}}^{\mathrm{HO}}=2$

N _sinteger sequence for from 0 to 39.

$N_{\mathrm{ID}}^{\mathrm{cell}}=1.$

When

if as UL Grant indication n _vRB=[2,3], according to predefine frequency hopping Pattern, the Physical Resource Block n of time slot 0 ~ 39 _pRBas shown in table 1 below:

The Physical Resource Block index n of table 1 time slot 0～39 _pRBsignal 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, there is variation in the position of the Physical Resource Block that subframe 0 is corresponding with subframe 10.

If random sequence still only by

the Physical Resource Block index n of time slot 0～39 _pRBas shown in table 2.

The Physical Resource Block index n of table 2 time slot 0～39 _pRBsignal 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, the position of the Physical Resource Block that subframe 0 is corresponding with subframe 10 does not change, and in this enhancing frequency-hopping method, has also occurred a new frequency hopping position 34 and 35.

Preferred embodiment three

This preferred embodiment provides a kind of data transmission method, Fig. 6 be according between the subframe of the type 2 of the enhancing of the embodiment of the present invention and subframe in resource frequency-hopping schematic diagram, as shown in Figure 6, subframe 0 passes and retransmits the resource location taking with the head that subframe 8 is data, and subframe 2 passes and retransmits the resource location taking with the head that subframe 10 is data.

In this preferred embodiment, can carry out transfer of data according to following formula:

Physical Resource Block biasing index:

${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}})$ (formula 8)

Wherein, frequency hopping variable i=n _s(formula 9)

Wherein, subband hopping function $f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (\left((\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)\right)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right.$ (formula 10)

Wherein, mirror image frequency hopping function f _m(i)=c (10*i) formula (11)

Wherein, the resource block number in subband

(formula 12)

Wherein,

(formula 13)

(formula 14)

In this preferred embodiment, when if as UL Grant indication n _vRB=[2,3], according to predefine frequency hopping Pattern, the Physical Resource Block n of time slot 0 ~ 39 _pRBas shown in table 3.

The Physical Resource Block index n of table 3 time slot 0～39 _pRBsignal 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, there is variation in the position of subframe 0 Physical Resource Block corresponding with subframe 10.

In this preferred embodiment, when

if as UL Grant indication n _vRB=[2,3], according to predefine frequency hopping Pattern, the Physical Resource Block n of time slot 0 ~ 39 _pRBas shown in table 4.

The Physical Resource Block index n of table 4 time slot 0～39 _pRBsignal 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, the position of subframe 0 Physical Resource Block corresponding with subframe 10 does not change.

Pass through above-described embodiment, a kind of data transmission method and device are provided, and having overcome actual frequency hopping position in correlation technique might not increase and increase along with number of sub-bands, causes obtaining the problem of enough frequency diversity gain, improve frequency diversity gain, and do not increased control overhead.It should be noted that, these technique effects are not that above-mentioned all execution modes have, and some technique effect is that some preferred implementation just can obtain.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (11)

1. a data transmission method, is characterized in that comprising:

The frequency domain position that is identified for sending Physical Resource Block in the time slot of data by frequency-hopping mode, wherein, the random sequence of described frequency-hopping mode is carried out initialization by cell ID and frame number;

The corresponding running time-frequency resource transmitting data of frequency domain position at the described Physical Resource Block of determining.

2. according to the method described in claim 1, it is characterized in that, pass through c _initinitialization random sequence,

wherein

for cell ID, n _ffor frame number.

3. method according to claim 1, is characterized in that, the frequency domain position that is identified for sending Physical Resource Block in the time slot of data by frequency-hopping mode comprises:

By following formula, determine time slot n _ssend the frequency domain position n of data _pRB:

Wherein, ${\tilde{n}}_{\mathrm{PRB}}\left(n_s\right)({\tilde{n}}_{\mathrm{VRB}}+f_{\mathrm{hop}}\left(i\right)\·N_{\mathrm{RB}}^{\mathrm{sb}}+((N_{\mathrm{RB}}^{\mathrm{sb}}-1)-2\left({\tilde{n}}_{\mathrm{VRB}}\mathrm{mod}{N}_{\mathrm{RB}}^{\mathrm{sb}}\right))\·f_m\left(i\right))\mathrm{mod}(N_{\mathrm{RB}}^{\mathrm{sb}}\·N_{\mathrm{sb}}),$

for Physical Resource Block biasing index,

for virtual resource blocks biasing index,

for frequency hopping biasing, for operation that x is rounded up, f _hop(i) be subband hopping function,

for the resource block number in subband, f _m(i) be mirror image frequency hopping function, mod is modulo operation, N _sbfor sub band number, s is time slot sequence number, and i is frequency hopping variable.

4. method according to claim 3, is characterized in that, described frequency hopping variable i is determined one of in the following way:

5. according to the method described in any one in claim 2 to 4, it is characterized in that described f _hop(i) by following formula, determine:

$f_{\mathrm{hop}}\left(i\right)=\left\{\begin{array}{cc}0& N_{\mathrm{sb}}=1\\ (\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}=2\\ (\left((\underset{k=i\·10+1}{\overset{i\·10+9}{\mathrm{\Σ}}}c\left(k\right)\×2^{k-(i\·10+1)})\mathrm{mod}(N_{\mathrm{sb}}-1)\right)+1)\mathrm{mod}{N}_{\mathrm{sb}}& N_{\mathrm{sb}}>2\end{array}\right.$

Wherein, mod is mod, N _sbfor sub band number, c is described random sequence, the sequence number that k is random sequence, and k is nonnegative integer.

6. according to the method described in any one in claim 2 to 4, it is characterized in that described f _m(i) by following formula, determine:

$f_m\left(i\right)=i\mathrm{mod}2\left\{\begin{array}{cc}i\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andintraandinter}-\mathrm{subframehopping}\\ \mathrm{CURRENT}\_\mathrm{TX}\_\mathrm{NB}\mathrm{mod}2& N_{\mathrm{sb}}=1\mathrm{andinter}-\mathrm{subframehopping}\\ c(i\·10)& N_{\mathrm{sb}}>1\end{array}\right.;$

CURRENT_TX_NB is current transmission times.

7. method according to claim 6, is characterized in that: f _m(i) corresponding formula is determined one of in the following way:

The indication of radio resource control RRC layer message;

Resource grant message indication;

Predefine.

8. method according to claim 3, is characterized in that,

by following formula, determine:

Wherein,

for the sum of Resource Block in a time slot corresponding to upstream bandwidth,

for frequency hopping biasing,

for y is rounded to operation downwards.

9. method according to claim 3, is characterized in that,

by following formula, determine:

Wherein,

for frequency hopping biasing, n _vRBvirtual resource blocks index,

for operation that x is rounded up.

10. a data transmission device, is characterized in that comprising:

Determination module, for be identified for sending the frequency domain position of the time slot Physical Resource Block of data by frequency-hopping mode, wherein, the random sequence of described frequency-hopping mode is carried out initialization by cell ID and frame number;

Transport module, for the corresponding running time-frequency resource transmitting data of frequency domain position of the described Physical Resource Block determining.

11. devices according to claim 10, is characterized in that, described determination module is determined random sequence by following formula

wherein

for cell ID, n _ffor frame number.

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