CN101753286A - Transmission method, device and system - Google Patents
Transmission method, device and system Download PDFInfo
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- CN101753286A CN101753286A CN200810185857A CN200810185857A CN101753286A CN 101753286 A CN101753286 A CN 101753286A CN 200810185857 A CN200810185857 A CN 200810185857A CN 200810185857 A CN200810185857 A CN 200810185857A CN 101753286 A CN101753286 A CN 101753286A
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Abstract
The embodiment of the invention discloses transmission method, device and system, belonging to the communication field and solving the problems that the transmission of an available sub-frequency range pattern needs to occupy extra air interface resources and data transmission time delay is increased in the prior art. The transmission method of the invention comprises the steps of: establishing a mapping relationship between the available sub-frequency range pattern and a reference signal sequence; determining the reference signal sequence according to an obtained available sub-frequency range and the mapping relationship and sending a reference signal containing the reference signal sequence by a sender; and receiving the reference signal by a receiver, determining the reference signal sequence according to the reference signal, and determining the available sub-frequency range according to the reference signal sequence and the previously stored mapping relationship between the available sub-frequency range pattern and the reference signal sequence. The technical scheme provided by the embodiment of the invention can be applied to a wireless communication system.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of transmission method, device and system.
Background technology
When adopting discontinuous available frequency band to communicate, represent concrete operable frequency sub-band in the discontinuous available frequency band and the frequency sub-band that cannot use by available frequency sub-band pattern.
In the prior art, transmitter is before adopting discontinuous available frequency band transmission data, by public control channel, to the receiver transmitting control message, transmitter is adopted available frequency sub-band pattern notice receiver, after receiver obtained the available frequency sub-band pattern of discontinuous available frequency band, the frequency sub-band that can draw concrete operable frequency sub-band and cannot use according to available frequency sub-band pattern just was so that the signal on the frequency sub-band that filtering cannot be used.
The inventor finds that there are the following problems at least in the prior art: adopting Common Control Channel to transmit available frequency sub-band pattern needs new channel in addition, taken extra air interface resource, and because before sending data by discontinuous available frequency band, need the available frequency sub-band pattern of transmission earlier, take the regular hour, increased data transmission delay.
Summary of the invention
Transmit available frequency sub-band pattern and need the outer air interface resource of occupying volume in order to solve the available technology adopting Common Control Channel, and increase the problem of data transmission delay.Embodiments of the invention are by the following technical solutions:
On the one hand, the embodiment of the invention provides a kind of transmission method.
A kind of transmission method comprises:
Set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one reference signal sequence of available frequency sub-band pattern;
Selection is used to transmit the available frequency band of data, determines the available frequency sub-band in the available frequency band, represents available frequency sub-band in the described available frequency band with available frequency sub-band pattern;
Determine described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence;
Available frequency sub-band in described available frequency band sends the reference signal that includes described reference signal sequence.
On the one hand, the embodiment of the invention provides a kind of transmission method.
A kind of transmission method comprises:
Reception includes the reference signal of reference signal sequence;
Determine the reference signal sequence in the reference signal, and according to the available frequency sub-band pattern of storage in advance and the mapping relations between the reference signal sequence, determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal, the described mapping relations of storage in advance are: corresponding at least one reference signal sequence of available frequency sub-band pattern;
According to described available frequency sub-band pattern, obtain available frequency sub-band;
Receive data-signal at described available frequency sub-band.
On the one hand, the embodiment of the invention provides a kind of transmitting device.
A kind of transmitting device comprises:
Set up module, be used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one reference signal sequence of described available frequency sub-band pattern;
Acquisition module is used to select to be used to transmit the available frequency band of data, determines the available frequency sub-band in the available frequency band, confirms the pairing available frequency sub-band pattern of available frequency sub-band in the described available frequency band;
Determination module is used for determining described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence;
Sending module is used for sending the reference signal that includes described reference signal sequence at the available frequency sub-band of described available frequency band.
On the one hand, the embodiment of the invention provides a kind of transmitting device.
A kind of transmitting device comprises:
Receiver module is used to receive the reference signal that includes reference signal sequence;
Determination module is used for determining the reference signal sequence of reference signal, and determines the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance;
Acquisition module is used for obtaining available frequency sub-band according to described available frequency sub-band pattern;
Receive data module, be used for receiving data-signal at described available frequency sub-band.
On the other hand, the embodiment of the invention provides a kind of transmission system.
A kind of transmission system is characterized in that, comprising:
Transmitter is used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence; And obtain available frequency sub-band, represent described available frequency sub-band, determine described available frequency sub-band pattern corresponding reference burst, and send the reference signal that includes described reference signal sequence according to described mapping relations with available frequency sub-band pattern;
Receiver, be used to receive the described reference signal that includes reference signal sequence, determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance, obtain available frequency sub-band according to described available frequency sub-band pattern, and on the described available frequency sub-band that obtains, receive data-signal.
The embodiment of the invention provides a kind of transmission method, device and system, the embodiment of the invention is set up mapping relations between the available frequency sub-band pattern of available frequency band and reference signal sequence, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
Description of drawings
Fig. 1 is the described transmission method flow chart of the embodiment of the invention;
Fig. 2 is the described transmission method flow chart of the embodiment of the invention;
Fig. 3 is the frequency range structural representation of the described 802.11a/g of the embodiment of the invention;
Fig. 4 is the mapping relations schematic diagram between described available frequency sub-band pattern of the embodiment of the invention and the reference signal sequence;
Fig. 5 is the reference signal structure schematic diagram among the described 802.11a/g of the embodiment of the invention;
Fig. 6 is the described transmitting device block diagram of the embodiment of the invention;
Fig. 7 is the described transmitting device block diagram of the embodiment of the invention;
Fig. 8 is the described transmission system block diagram of the embodiment of the invention.
Embodiment
Transmit available frequency sub-band pattern and need the outer air interface resource of occupying volume in order to solve the available technology adopting Common Control Channel, and increase the problem of data transmission delay.
Embodiments of the invention provide a kind of transmission method.
As shown in Figure 1, this method comprises in the processing of transmitting terminal:
101, set up mapping relations between available frequency sub-band pattern and the reference signal sequence.
As whole frequency being divided into N frequency sub-band, according to the spectrum utilization situation, transmitter can select the whole or part in this N frequency sub-band to be used to transmit data, if a frequency sub-band is used to transmit data, then all subcarriers in this frequency sub-band can be used to transmit data, if a frequency sub-band is not used in the transmission data, then all subcarriers in this frequency sub-band can not be used to transmit data.Be used to transmit data and be not used in transmission data two states because each frequency sub-band all exists, so, N frequency sub-band total corresponding 2
N-a kind of available frequency sub-band pattern.(M＜=2 of supposing that M is arranged
N-1) the available frequency sub-band pattern of kind can be sent out machine and be used for sending data, selects one group of reference signal with good their cross correlation, and this group reference signal comprises the sequence that the L kind is different, L＞=M; Set up a pair of at least one mapping relations then between the available frequency sub-band pattern of the M kind sequence different with the L kind, an available frequency sub-band pattern can corresponding at least one reference signal sequence in these mapping relations.
When selecting reference signal sequence, except will considering good their cross correlation, the another one requirement is that the peak-to-average force ratio of sequence is low as far as possible.For example under the identical situation of their cross correlation, preferentially select the lower sequence of peak-to-average force ratio.
Described whole frequency is divided into N the whole frequency in the frequency sub-band, be meant the transmission bandwidth of transmitter and the pairing communication system of receiver, for example the transmission bandwidth of transmitter is 5MHz, and N=10 is meant that then the bandwidth with 5MHz is divided into 10 subbands of 500KHz.The transmission bandwidth of transmitter is 20MHz, and N=10 is meant that then the bandwidth with 5MHz is divided into 10 subbands of 2MHz.
102, select to be used to transmit the available frequency band of data, determine the available frequency sub-band in the available frequency band, represent available frequency sub-band in the described available frequency band with available frequency sub-band pattern.
Transmitting terminal is selected the available frequency band of the more frequency range of available frequency sub-band number as the transmission data, and the available frequency sub-band in definite available frequency band.In the available frequency band not by the shared frequency sub-band of other user, perhaps disturb and the lower frequency sub-band of noise, the perhaps good frequency sub-band of channel quality, as the available frequency sub-band in this available frequency band, can be used for transmitting data, the combination of available frequency sub-band has just formed available frequency sub-band pattern in this available frequency band.Certainly, also can dispose a threshold value as required, select the number of available frequency sub-band to reach the available frequency band of the frequency range of described threshold value as the transmission data.
Available frequency band described here, be meant certain frequency range that specifically is used to transmit, the bandwidth of this frequency range is the transmission bandwidth of transmitter and the pairing communication system of receiver, for example described available frequency band is that the frequency range of the common 5MHz of 5000MHz～5005MHz is an available frequency band, suppose that this frequency range is divided into 10 frequency sub-band, the bandwidth of each sub-band is 500KHz, if in the frequency band of 5000MHz～5005MHz, only there is band segment shared among 5000MHz～5000.5MHz by other user, then the 1st of this available frequency band of 5000MHz～5005MHz the frequency sub-band is unavailable, and all the other 9 frequency sub-band are available frequency sub-band.
103, determine described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence.
From the available frequency sub-band pattern and the mapping relations between the reference signal sequence of above-mentioned foundation, can search and determine the current pairing reference signal sequence of available frequency sub-band pattern that gets access to.
104, the available frequency sub-band at described available frequency band sends the reference signal that includes described reference signal sequence.
Concrete, correspond to the original value that is taken as this element at the element of available frequency sub-band transmission in the reference signal sequence; The element that corresponds in the reference signal sequence in unavailable frequency sub-band transmission is taken as 0, promptly at unavailable frequency sub-band, does not carry out any transmission.Wherein, described original value is the value that the script in the FZC sequence has, if correspond to the element in available frequency sub-band transmission in the reference signal sequence, then the corresponding value in the FZC sequence remains unchanged.
Before or after the available frequency sub-band transmission of described available frequency band includes the reference signal of described reference signal sequence, further can send data-signal at the available frequency sub-band of described available frequency band, also can send data-signal and reference signal simultaneously.
As shown in Figure 2, the described transmission method of the embodiment of the invention comprises in the processing of receiving terminal:
201, receive the reference signal that includes reference signal sequence.
The reference signal that receiving end/sending end sends over, described reference signal includes reference signal sequence.
202, determine the reference signal sequence that transmitting terminal is sent, and determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance.
Receiving terminal stores the L kind in advance with reference to burst and the corresponding respectively available frequency sub-band pattern of these reference signal sequences.When determining the sequence number of reference signal, at first carry out related calculation with institute's stored reference signal sequence and reference signal sequence in the reference signal that receives, and in receiving terminal stored reference signal sequence, select the correlation maximum, the reference signal sequence that sends over as transmitting terminal.
At the reference signal sequence of having determined that transmitting terminal sends over, and according to the mapping relations between reference signal sequence and the available frequency sub-band pattern, with the pairing available frequency sub-band pattern of reference signal sequence determined as last definite available frequency sub-band pattern.
203, according to described available frequency sub-band pattern, obtain available frequency sub-band.
According to determined available frequency sub-band pattern, receiver can be informed in the frequency range that is received, which frequency sub-band is used to transmit data, which frequency sub-band is not used in the transmission data, and then can receive only signal on the available frequency sub-band, and adopt filter to filter as disturbing the signal on the unavailable frequency sub-band.
The transmission method that the embodiment of the invention provides, between the available frequency sub-band pattern of available frequency band and reference signal sequence, set up mapping relations, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
The application of the transmission method that the embodiment of the invention is provided based on 802.11a/g is elaborated below.
Being treated to of transmitting terminal:
1, sets up mapping relations between available frequency sub-band pattern and the reference signal sequence.
With 802.11a/g is example, and the whole frequency of 802.11a/g comprises 64 subcarriers, and as shown in Figure 3, wherein, subcarrier-26～-1 and subcarrier 1～26 be totally 52 sub-carrier transmission data, and all the other subcarriers do not transmit data, as boundary belt.52 subcarriers are divided into some frequency sub-band, and for example 5 frequency sub-band represent that with 0 frequency sub-band is unavailable, represent that with 1 frequency sub-band can use, except 00000, have 31 kinds of available frequency sub-band patterns, use 00001B respectively, 00010B,, 11111B represents, gets one group of sequence with good their cross correlation, for example length is that 53 FZC (Frank-Zadoff-Chu) sequence is as reference signal sequence, the element in each FZC sequence
, wherein, k=0,1 ..., 52, W
53=e
-j2 π r/53, r=1,2 ..., 31.Make r correspond respectively to the sequence number of 31 kinds of available frequency sub-band patterns, then can set up relation one to one, as shown in Figure 4 at 31 kinds of available frequency sub-band patterns and the reference signal sequence that comprises 31 series.In actual applications, also can between available frequency sub-band pattern and reference signal sequence, set up a pair of plural mapping relations, such as in this example, if 52 subcarriers are divided into 4 frequency sub-band, represent that with 0 frequency sub-band is unavailable, represent that with 1 frequency sub-band can use, except 0000, have 15 kinds of available frequency sub-band patterns, use 0001B respectively, 0010B ... 1111B represents, and the FZC sequence includes 31 series, just can set up a pair of two mapping relations between available frequency sub-band pattern and reference signal sequence, the corresponding available frequency sub-band pattern of per two reference signal sequences, such as r=1, the corresponding available frequency sub-band pattern 0001B of 16 FZC sequence.
When selecting reference sequences, can also preferentially select the lower sequence of peak-to-average force ratio according to the peak-to-average force ratio of reference sequences.Be to select 31 sequences as the reference sequence 53 the FZC sequence from length for example, can select 31 all low sequences of peak, the r value of these 31 sequences is 9,44,1,52,35,18,15,38,40,13,24,29,27,26,32,21,33,20,16,37,6,47,4,49,42,11,19,34,51,2,7.
2, select to be used to transmit the available frequency band of data, determine the available frequency sub-band in the available frequency band, represent available frequency sub-band in the described available frequency band with available frequency sub-band pattern.
Suppose that available frequency band is 5GHz～5.005GHz 5MHz frequency range altogether, in this available frequency band, suppose to have only 5001.1625MHz～5001.875MHz altogether 312.5KHz by other CU, that is to say, other CU subcarrier-12～-8, so second frequency sub-band is not available to transmit numerical control, just can learn that corresponding available frequency sub-band pattern is 10111B.
3, determine described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence.
Available frequency sub-band pattern is 10111B, and as seen from Figure 4, frequency sub-band pattern 10111B corresponding reference burst is the FZC sequence of r=23.
4, the available frequency sub-band at described available frequency band sends the reference signal that includes described reference signal sequence.
The reference signal sequence that select to send is that the length of r=23 is 53 FZC sequence, and transmitting terminal is that 53 FZC sequence is modulated to subcarrier-26～26 successively with length, is about to that each element value is modulated to corresponding subcarrier in the FZC sequence, is about to { a
k}
rBe modulated to subcarrier (k-26), k=0,1,2 ..., 52, such as element { a
0}
R23Corresponding subcarrier-26, element { a
1}
R23Corresponding subcarrier-25 or the like.Modulating rule is: available subcarrier (k-26) is according to { a of correspondence
k}
rValue is modulated, and unavailable subcarrier-modulated to 0 that is to say, if subcarrier (k-26) is unavailable, and { a then
k}
r=0, { a in addition
26}
rAll the time equal 0, because { a
26}
rCorresponding subcarrier 0.In the present embodiment, { a
-15}
23=0～{ a
-6}
23=0=0, { a in addition
26}
23Also equal 0, because { a
26}
23Be modulated to subcarrier 0.
Reference signal has multiple transmission means, further provides a kind of compatible 802.11a/g below, comprises the reference signal transmission mode of available frequency sub-band pattern.Concrete; as shown in Figure 5; reference signal comprises two parts; short training sequence and long training sequence; short training sequence comprises that the length of repetition 10 times is 16 short sequence; long training sequence comprises that the length of twice of repetition is 64 long sequence, between long sequence and short sequence is 32 protection sequence for length, protects sequence to equal the 33rd to the 64th sequential value that length is 64 long sequence.
Mode below short training sequence adopts generates:
At first, make sequence { S
k}={ 0,0,0,0,0,0,0,0,1+j, 0,0,0 ,-1-j, 0,0,0,1+j, 0,0,0 ,-1-j, 0,0,0 ,-1-j, 0,0,0,1+j, 0,0,0,0,0,0,0 ,-1-j, 0,0,0 ,-1-j, 0,0,0,1+j, 0,0,0,1+j, 0,0,0,1+j, 0,0,0,1+j, 0,0,0,0,0,0,0}, k=-32～31.
Secondly,, travel through all k=-32～31,, then make S if subcarrier k can not transmitting useful data according to determined available frequency sub-band pattern
k=0, otherwise, S
kRemain unchanged.
At last, to sequence { S
kCarry out 64 inverse Fourier transforms, obtain length and be 64 sequence { XS
n, to length 64 sequence { XS
nPeriodically expansion, length obtained and be 160 short training sequence.The length of short training sequence is 160, is that 16 short sequence is formed by the length that repeats 10 times.
Mode below long training sequence adopts generates;
At first, make sequence { L
k}
r=0,0,0,0,0,0, a
0, r, a
1, r..., a
25, r, 0, a
27, r, a
28, r..., a
52, r, 0,0,0,0,0}, k=-32～31, wherein a
M, r=W
53 M^2/2, W
53=exp (j*2*pi*r/53), r are the reference sequences numbering that corresponds to available frequency sub-band pattern.
Secondly,, travel through all k=-32～31, if the subcarrier of subcarrier k for not transmitting, the then corresponding L of order according to determined available frequency sub-band pattern
K, r=0, otherwise, L
K, rRemain unchanged.
At last, to sequence { L
k}
rCarry out 64 inverse Fourier transforms, obtain length and be 64 sequence { L
k}
r, be 64 sequence { L to length
k}
rPeriodically expansion obtains length and is 160 long training sequence.
Just formed reference signal according to short training sequence that obtains and long training sequence.
According to the 802.11a/g agreement, after reference sequences is modulated to subcarrier, will be through 64 IFFT (inverse fast Fourier transform) frequency domain transform, add appropriate C P (Cyclic Prefix then, Cyclic Prefix), through D/A (digital/analog converter) or filter or known OFDM such as amplifier or up-conversion (orthogonal frequency division multiplexi) modulation-transmission technology, be sent to transmitting antenna and transfer out.
Data-signal will adopt the available frequency sub-band transmission of the available frequency band identical with reference signal.That is to say that data-signal only is modulated to the subcarrier of available frequency sub-band.
Being treated to of receiving terminal:
1, receives the reference signal that includes reference signal sequence.
The reference signal that receiving end/sending end sends over, described reference signal includes reference signal sequence.
2, determine the reference signal sequence that transmitting terminal is sent, and determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance.
For example corresponding to the embodiment that has 31 kinds of available frequency sub-band patterns, receiving terminal stores 31 kinds in advance with reference to burst and the corresponding respectively available frequency sub-band pattern of these reference signal sequences, that is: 31 kinds with reference to the mapping relations between burst and the 31 kinds of available frequency sub-band patterns, 31 kinds of with reference to burst and transmitting terminal 31 kinds are consistent with reference to burst, and described mapping relations are consistent with transmitting terminal also.
According to reference signal structure figure as shown in Figure 5, can from reference signal, draw the reference signal sequence that is transmitted, 31 kinds of receiving terminal storage are done correlation computations with described received signal respectively with reference to burst, can obtain 31 correlations, in these 31 values, the sequence 23 pairing correlation maximums of storing with receiving terminal are so can determine that the sequence 23 that sequence that transmitting terminal sends and receiving terminal store is consistent.
Here need to prove, carry out the local reference sequences that relevant receiving terminal is stored with received signal, according to the mapping relations of itself and available frequency sub-band pattern, the element of available frequency sub-band part that corresponds to the available frequency sub-band transmission pattern of this sequence correspondence is taken as the original value of this element; The unavailable frequency sub-band element partly that corresponds to the available frequency sub-band transmission pattern of this sequence correspondence is taken as 0.
In addition, the relevant process of the described local reference sequences of storing and received signal can be that time domain is relevant, also can be that frequency domain is relevant, if relevant at frequency domain, then adopts the frequency domain value of local reference sequences relevant; If be correlated with, then adopt the time thresholding of local reference sequences in time domain.
What determined that transmitting terminal sends is after the receiving terminal sequence 23 of storing, and just can determine that available frequency sub-band pattern is and sequence 23 corresponding 10111B.
3, according to described available frequency sub-band pattern, obtain available frequency sub-band.
Determined that available frequency sub-band pattern is 10111B, just can know that subcarrier-15～-6 do not have transmitting useful data, all the other subcarriers all transmit useful data, and then can be in other carrier wave received signal except that-16～-6 subcarriers, further, the signal of transmission on can filtering subcarrier-15～-6 disturbs to reduce.
The mapping scheme that above-mentioned example adopts be with the FZC sequence as the reference burst, be mapped to the mapping method of all possible available frequency sub-band pattern.In concrete the application, can also adopt other mapping scheme, provide other several mapping schemes below:
1, (bandwidth of each frequency sub-band can equate whole frequency to be divided into N frequency sub-band, can not wait) yet, represent that with 1 frequency sub-band can use, represent that with 0 frequency sub-band is unavailable, then available frequency sub-band pattern can be represented with binary number, wherein, 00...0 represents that all frequency sub-band are all unavailable, at this moment can be at this frequency range transmitting data.N frequency sub-band total corresponding 2
N-a kind of available frequency sub-band pattern.
Select one group of reference signal sequence, this group reference signal sequence comprises L=2
N-a kind of different sequence is set up mapping relations one to one then between reference signal sequence and available frequency sub-band pattern
2, if in all N frequency sub-band, only when available frequency sub-band number during more than or equal to M (M 〉=1), transmitter just can utilize this band transmissions, like this, has
Individual available frequency sub-band pattern is used, and at this moment selects one group to comprise
Plant not homotactic reference signal sequence, between reference signal sequence and available subband pattern, set up mapping relations one to one then.
3, suppose to have only in the whole frequency frequency sub-band of a bandwidth fixed unavailable, then only need setting up one to one between the original position of frequency sub-band and one group of reference signal sequence, mapping relations get final product.
Above several mapping schemes that provide for the embodiment of the invention, variation that any those skilled in the art of being familiar with can expect easily or replacement all should be encompassed within protection scope of the present invention
The transmission method that the embodiment of the invention provides, between the available frequency sub-band pattern of available frequency band and reference signal sequence, set up mapping relations, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
The embodiment of the invention also provides a kind of transmitting device.
As shown in Figure 6, this device at transmitter comprises:
Set up module 601, be used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one the reference signal sequence of available frequency sub-band pattern;
Sending module 604 is used for sending the reference signal that includes described reference signal sequence at the available frequency sub-band of described available frequency band.
This device is set up mapping relations between reference signal sequence and available frequency sub-band pattern, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
As shown in Figure 7, this device at receiver comprises:
After receiving terminal has been determined available frequency sub-band, just can receive data at available frequency sub-band, so this device also comprises:
Receive data module 704, be used for receiving data at described available frequency sub-band.
Wherein, described mapping relations need be stored in the device in advance, so this device also comprises:
This installs the mapping relations between the stored reference burst and available frequency sub-band pattern in advance, reception includes the reference signal of reference signal sequence, determine available frequency sub-band pattern according to described mapping relations and described reference signal, wherein, the reference signal that receives utilizes the used channel of data signal to send, do not need again the outer air interface resource of occupying volume, and the time delay between the transmission of available frequency sub-band style information and the transmission of data-signal is short, has avoided extra propagation delay time.
The transmitting device that the embodiment of the invention provides, between reference signal sequence and available frequency sub-band pattern, set up mapping relations, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
The embodiment of the invention also provides a kind of transmission system.
As shown in Figure 8, this system comprises:
Transmitter 801 is used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one reference signal sequence of available frequency sub-band pattern; And obtain available frequency sub-band, represent described available frequency sub-band, determine described available frequency sub-band pattern corresponding reference burst, and send the reference signal that includes described reference signal sequence according to described mapping relations with available frequency sub-band pattern;
Receiver 802, be used to receive the described reference signal that includes reference signal sequence, determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance, obtain available frequency sub-band according to described available frequency sub-band pattern, and on the described available frequency sub-band that obtains, receive data-signal.
Wherein, transmitter utilizes the used channel of data signal to send reference signal when sending reference signal, does not need the outer air interface resource of occupying volume again, and the time delay between the transmission of available frequency sub-band style information and the transmission of data-signal is short, has avoided extra propagation delay time.
Receiver needs the mapping relations between the stored reference burst and available frequency sub-band pattern in advance, and receiver is determined available frequency sub-band pattern according to described mapping relations and the reference signal that receives.After receiver had obtained available frequency sub-band, receiver received data on the available frequency sub-band that obtains.
The transmission system that the embodiment of the invention provides, between reference signal sequence and available frequency sub-band pattern, set up mapping relations, the reference signal that utilization comprises reference signal sequence is transmitted available frequency sub-band pattern, reference signal can utilize same channel to send with data-signal, do not need the outer interface-free resources of occupying volume, improved spectrum utilization efficiency; And the time delay between the transmission of reference signal and the transmission of data-signal is short, has avoided extra propagation delay time.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (9)
1. a transmission method is characterized in that, comprising:
Set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one reference signal sequence of available frequency sub-band pattern;
Selection is used to transmit the available frequency band of data, determines the available frequency sub-band in the available frequency band, represents available frequency sub-band in the described available frequency band with available frequency sub-band pattern;
Determine described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence;
Available frequency sub-band in described available frequency band sends the reference signal that includes described reference signal sequence.
2. a transmission method is characterized in that, comprising:
Reception includes the reference signal of reference signal sequence;
Determine the reference signal sequence in the reference signal, and according to the available frequency sub-band pattern of storage in advance and the mapping relations between the reference signal sequence, determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal, the described mapping relations of storage in advance are: corresponding at least one reference signal sequence of available frequency sub-band pattern;
According to described available frequency sub-band pattern, obtain available frequency sub-band;
Receive data-signal at described available frequency sub-band.
3. transmission method according to claim 2 is characterized in that, further comprises the signal of the unavailable frequency sub-band transmission in the filtering available frequency band.
4. a transmitting device is characterized in that, comprising:
Set up module, be used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence, corresponding at least one reference signal sequence of described available frequency sub-band pattern;
Acquisition module is used to select to be used to transmit the available frequency band of data, determines the available frequency sub-band in the available frequency band, confirms the pairing available frequency sub-band pattern of available frequency sub-band in the described available frequency band;
Determination module is used for determining described available frequency sub-band pattern corresponding reference burst according to the mapping relations between described available frequency sub-band pattern and the reference signal sequence;
Sending module is used for sending the reference signal that includes described reference signal sequence at the available frequency sub-band of described available frequency band.
5. transmitting device according to claim 4 is characterized in that, described sending module sends data-signal by same channel and includes the reference signal of described reference signal sequence.
6. a transmitting device is characterized in that, comprising:
Receiver module is used to receive the reference signal that includes reference signal sequence;
Determination module is used for determining the reference signal sequence of reference signal, and determines the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance;
Acquisition module is used for obtaining available frequency sub-band according to described available frequency sub-band pattern;
Receive data module, be used for receiving data-signal at described available frequency sub-band.
7. transmitting device according to claim 6 is characterized in that, also comprises:
Memory module is used for storing in advance the mapping relations between described available frequency sub-band pattern and the reference signal sequence.
8. a transmission system is characterized in that, comprising:
Transmitter is used to set up the mapping relations between available frequency sub-band pattern and the reference signal sequence; And obtain available frequency sub-band, represent described available frequency sub-band, determine described available frequency sub-band pattern corresponding reference burst, and send the reference signal that includes described reference signal sequence according to described mapping relations with available frequency sub-band pattern;
Receiver, be used to receive the described reference signal that includes reference signal sequence, determine the available frequency sub-band pattern of the reference signal sequence correspondence in the described reference signal according to the mapping relations of storage in advance, obtain available frequency sub-band according to described available frequency sub-band pattern, and on the described available frequency sub-band that obtains, receive data-signal.
9. transmission system according to claim 8 is characterized in that, stores the mapping relations between described available frequency sub-band pattern and the reference signal sequence in the described receiver in advance.
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| CN200810185857.XA CN101753286B (en) | 2008-12-18 | 2008-12-18 | Transmission method, device and system |
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| CN200810185857.XA CN101753286B (en) | 2008-12-18 | 2008-12-18 | Transmission method, device and system |
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| CN101753286A true CN101753286A (en) | 2010-06-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014205720A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Data transmission method and apparatus |
| WO2014205727A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Data transmission method and apparatus |
| CN109495228A (en) * | 2017-09-11 | 2019-03-19 | 电信科学技术研究院 | A kind of uplink signal sequence generating method, terminal, base station and computer readable storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7068703B2 (en) * | 2003-02-18 | 2006-06-27 | Qualcomm, Incorporated | Frequency hop sequences for multi-band communication systems |
| CN101174857A (en) * | 2006-09-30 | 2008-05-07 | 华为技术有限公司 | Sequence distribution method, sequence processing method and device in communication system |
| CN101179819A (en) * | 2006-09-30 | 2008-05-14 | 华为技术有限公司 | Sequence allocated method, system and device in multi-cell system |
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2008
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014205720A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Data transmission method and apparatus |
| WO2014205727A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Data transmission method and apparatus |
| CN105284082A (en) * | 2013-06-27 | 2016-01-27 | 华为技术有限公司 | Data transmission method and apparatus |
| CN105284089A (en) * | 2013-06-27 | 2016-01-27 | 华为技术有限公司 | Data transmission method and apparatus |
| US9912455B2 (en) | 2013-06-27 | 2018-03-06 | Huawei Technologies Co., Ltd. | Data transmission method and apparatus |
| US10038764B2 (en) | 2013-06-27 | 2018-07-31 | Huawei Technologies Co., Ltd | Data transmission method and apparatus |
| CN105284082B (en) * | 2013-06-27 | 2019-02-26 | 华为技术有限公司 | The method and apparatus for transmitting data |
| CN105284089B (en) * | 2013-06-27 | 2019-05-10 | 华为技术有限公司 | The method and apparatus for transmitting data |
| CN109495228A (en) * | 2017-09-11 | 2019-03-19 | 电信科学技术研究院 | A kind of uplink signal sequence generating method, terminal, base station and computer readable storage medium |
| US10911283B2 (en) | 2017-09-11 | 2021-02-02 | China Academy Of Telecommunications Technology | Method of generating uplink signal sequence, user equipment, base station and computer-readable storage medium |
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| CN101753286B (en) | 2016-03-09 |
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