CN102142916A - Multiplexing method and multiplexing equipment of reference signal - Google Patents
Multiplexing method and multiplexing equipment of reference signal Download PDFInfo
- Publication number
- CN102142916A CN102142916A CN2010101032497A CN201010103249A CN102142916A CN 102142916 A CN102142916 A CN 102142916A CN 2010101032497 A CN2010101032497 A CN 2010101032497A CN 201010103249 A CN201010103249 A CN 201010103249A CN 102142916 A CN102142916 A CN 102142916A
- Authority
- CN
- China
- Prior art keywords
- reference signal
- root sequence
- sequence
- place
- intercepting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a multiplexing method and a multiplexing equipment of a reference signal. The multiplexing method comprises the following steps: determining the number of subcarrier on a transmission frequency band; determining a public root sequence borne by the root sequence of the reference signal according to the number of subcarrier, wherein the digit of the public root sequence is same with that of the subcarrier; and according to the preset fixed position of the subcarrier of the first reference signal in the transmission frequency band, intercepting the digit from the public root sequence to form the root sequence of the first reference signal. When data is transmitted on the same time-frequency resource, the reference signals with root sequences which are not completely same are multiplexed.
Description
Technical field
The present invention relates to the communications field, particularly the multiplexing method of reference signal and multiplexing equipment.
Background technology
In LTE in radio communication (Long Term Evolution) or LTE-A (the Long Term EvolutionAdvanced) standard, the LTE system uplink adopts the access way of SC-FDMA (single-carrier frequency division multiple access).As shown in Figure 1, from the time be basic time unit with cycle of SC-FDMA symbol, the time that SC-FDMA symbol continues is about 1/14 millisecond.Each SC-FDMA symbol is divided into a plurality of subcarriers on frequency domain, the interval between the subcarrier is decided to be 15kHz in the LTE agreement.On frequency domain, be base unit with the subcarrier.
To sum up, running time-frequency resource is uniform unit by cutting, is called resource units (Resource Elements) RE, and each RE accounts for the duration of a SC-FDMA symbol on the time, account for the width of a subcarrier on the frequency.Can transmit a symbol (for example QPSK/16QAM/64QAM symbol) on each RE.Be illustrated in figure 2 as the schematic diagram that Radio Resource is cut into resource units.
Can roughly be divided into data (data) and reference information (ReferenceSignal) two classes in the wireless communication system information transmitted.Wherein data are exactly the information that transmitting terminal need send receiving terminal to, and these information are unknown at receiving terminal originally, need transfer to know these information by separating; And reference information is the information that transmitting terminal and receiving terminal have all been known, its effect is that receiving terminal carries out operations such as channel estimating for convenience, thereby helps receiving terminal to carry out the demodulation of data.
From the angle of each RE, if do not consider noise, received signal will be transmit with this RE on the product of channel response.Simultaneously all there is correlation in wireless channel on time-domain and frequency-domain, be exactly in brief channel response on the adjacent RE be much the same, so as long as on some RE transmission of reference signals, receiving terminal just can obtain the channel estimating on this RE.
More than figure is an example, supposes that RE5 is used for transmission of reference signals, and other RE are used for transmission of data signals.Suppose that it is r that RE5 goes up the reference signal data
5, the channel response on the RE5 is H
5, then the signal received of receiving terminal is y
5=H
5r
5(not considering factors such as noise) is because r
5At receiving terminal is known, so
Just obtained the channel estimating on the RE5.The channel response of RE1-9 and RE5 can be very approximate on every side, and the processing by some algorithms just can obtain the channel estimating on the RE on every side, thereby can carry out data demodulates.
In the prior art, a part of RE can be used for transmission of reference signals.Particularly, some SC-FDMA symbol can be used to transmission of reference signals, on these SC-FDMA symbols, can obtain on the frequency range of channel estimating at needs, on continuous sub-carriers, send reference signal, shown in Fig. 2 b, all subcarriers of the 4th and the 11st SC-FDM symbol all are used for transmission of reference signals.Following expression formula: s is adopted in generation as reference signal sequence
Here
Be called the root sequence, sequence length is identical with the number of the required subcarrier that obtains channel estimating.For example need carry out channel estimating on 120 subcarriers, will select a length is 120 root sequence, and obviously the length of reference signal also is 120.e
J α nBe called cyclic shift (Cyclic Shift, CS), wherein the value of α be [0,2 π) between value.Acting on of cyclic shift can be multiplexing on identical running time-frequency resource with a plurality of reference signals, hereinafter will further describe.
As mentioned before, reference signal is used for carrying out channel estimating.Under some scene, can on identical running time-frequency resource, transmit more than a reference signal, distinguish by cyclic shift, can obtain independently channel estimation value at receiving terminal.A kind of possible scene such as multiuser MIMO technology (MU-MIMO).Two users are arranged in the enterprising line data transmission of identical running time-frequency resource this moment, this moment, receiver need obtain independently channel estimating of two users, could carry out demodulation respectively.In the LTE agreement, two users can send reference signal on identical RE, and distinguish by cyclic shift.
For reaching this purpose, reference signal need satisfy following conditions:
1. two reference signals adopt identical root sequence
2. two reference signals adopt different cyclic shifts
Illustrate receiving end below and how to carry out channel estimating respectively for two reference signals.
Hypothetical reference signal 1, sequence is
Be that sequence length is N, cyclic shift α=0 is placed on it by turn on the 1st～N work song carrier wave and sends, and the channel table of its process is shown H
1(n) (1≤n≤N); Hypothetical reference signal 2, sequence is
(1≤n≤N), promptly adopt identical root sequence, sequence length is N, and cyclic shift α=π is placed on it by turn on the 1st～N work song carrier wave and sends, and the channel table of its process is shown H
2(n) (1≤n≤N).At the signal that receiving terminal obtains can approximate expression be reference signal and the product of channel response on each subcarrier, because the two sends, ignores noise again on identical running time-frequency resource, and the signal that then receives can be expressed as:
y(n)＝r
1(n)H
1(n)+r
2(n)H
2(n)
, obtain divided by the root sequence for received signal:
Carry out following processing for sequence z (n):
Since wireless channel corresponding on adjacent sub-carrier approximately equal, so above-mentioned steps has been eliminated user 2 channel response.The sequence that obtains
Length is
For
Carry out interpolation processing, expand to the sequence that length is N again, just obtained channel response H
1(n) (the channel estimating of 1≤n≤N).
Carry out following processing for sequence z (n):
It is corresponding that this processing process has been eliminated user 1 channel.The sequence that obtains
Length is
For
Carry out interpolation processing, expand to the sequence that length is N again, just obtained channel response H
2(n) (the channel estimating of 1≤n≤N).
In the prior art, reference signal that can be multiplexing can be more than two, and only needing to satisfy has the same root sequence, and each reference signal has different cyclic shifts just they can be made a distinction one by one.But,, as the length of root sequence not simultaneously, just can't distinguish if two reference signals root sequence on the subcarrier of common transmission is incomplete same.
Summary of the invention
The embodiment of the invention provides the multiplexing method and the multiplexing equipment of reference signal, makes when the root sequence is incomplete same, can be when the transmission of the enterprising line data of identical running time-frequency resource multiplexing reference signal with incomplete same sequence.
The embodiment of the invention provides a kind of multiplexing method of reference signal, comprising:
Determine the sub-carrier number on the transmission band;
Determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
According to both allocations that the subcarrier of first reference signal is preset, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band.
The embodiment of the invention also provides a kind of multiplexing equipment of reference signal, comprise common root sequence generation module: be used for the sub-carrier number on definite transmission band, determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
The first reference signal generation module:, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band according to both allocations that the subcarrier of first reference signal is preset.
And then, determine the common root sequence by the embodiment of the invention according to sub-carrier number, according to both allocations that subcarrier is preset, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band.And then make the enterprising line data of identical running time-frequency resource can multiplexingly have the reference signal of incomplete same sequence when transmitting.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is divided into the schematic diagram of a plurality of subcarriers on frequency domain for each SC-FDMA symbol of prior art;
Fig. 2 a is cut into the schematic diagram of resource units for the prior art Radio Resource;
Fig. 2 b is the schematic diagrames of all subcarriers of prior art the 4th and the 11st SC-FDM symbol with transmission of reference signals;
Fig. 3 is the multiplexing method flow chart of embodiment of the invention reference signal;
Fig. 4 is that the corresponding subcarrier that distributes of two reference signals has common root sequence schematic diagram when overlapping;
Fig. 5 is that the corresponding subcarrier that distributes of two reference signals has another schematic diagram of common root sequence when overlapping;
Fig. 6 is that the corresponding subcarrier that distributes of three reference signals has common root sequence schematic diagram when overlapping;
Fig. 7 is a kind of multiplexing equipment structural representation of reference signal; With
Fig. 8 is another example structure schematic diagram of the multiplexing equipment of reference signal of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 3, the embodiment of the invention provides a kind of multiplexing method of reference signal, comprising:
Step 301: determine the sub-carrier number on the transmission band; Be appreciated that the transmission band here can also be appreciated that the transmission band in a big way for being made of the plurality of sub band for being divided into some subbands (subband) on the frequency domain.
Step 302: determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
Step 303:, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band according to both allocations that the subcarrier of first reference signal is preset.
And then, determine the common root sequence by the embodiment of the invention according to sub-carrier number, according to both allocations that subcarrier is preset, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band.And then make the enterprising line data of identical running time-frequency resource can multiplexingly have the reference signal of incomplete same sequence when transmitting.
Optionally, the common root sequence is identical with the root sequence of described first reference signal, and the intercepting figure place constitutes whole root sequences of second reference signal from the root sequence of first reference signal.
Optionally, also carry out following steps after the step 303:
Step 304: resolve the root sequence of first reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of first reference signal.
And then the embodiment of the invention selects the root sequence of first reference signal with overlapping figure place and the root sequence of second reference signal from the common root sequence.Multiplexing reference signal when making the transmission of the enterprising line data of identical running time-frequency resource with incomplete same sequence.
See also following specific embodiment:
Step 302 is specially: be common root sequence that length is N of above-mentioned this transmission band subband definition
As seen this common root sequence has figure place and the N position with the sub-carrier number equal number;
Step 303 is specially: different reference signals intercept on the common root sequence according to subcarrier default both allocations in transmission band at own place, and adopt different cyclic shifts in the reference signal in the same sub-carrier transmission.For example, constitute the root sequence of first reference signal for selected part figure place from the common root sequence; As preestablish the N of first reference signal at this transmission band subband
1～N
2Transmit on the work song carrier wave, then only need from sequence
Middle intercepting N
1～N
2The position is as the root sequence of oneself, wherein N1＜N2＜N.
Step 304: resolve the root sequence of first reference signal, the intercepting figure place constitutes the part or all of root sequence of the root sequence of second reference signal from the root sequence of first reference signal.Optionally, according to the figure place of described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of first reference signal and second reference signal, the overlapped figure place of intercepting constitutes the part root sequence of second reference signal from the first reference signal root sequence.Optionally: after resolving the root sequence of first reference signal, if obtain first reference signal and the transmission simultaneously on some subcarrier of second reference signal, then these two reference signals should adopt different cyclic shifts.Be understood that the parton sequence from the root sequence of first reference signal, chosen whole subsequences or parton sequence as the root sequence of second reference signal.
Optionally, described common root sequence is formed by the root sequence of described first reference signal and the root sequence assembly of the 3rd reference signal; Further comprise after the step 304:
Resolve the root sequence of the 3rd reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal;
The part root sequence that splicing is chosen from the root sequence of the root sequence of first reference signal and the 3rd reference signal respectively forms whole root sequences of second reference signal.
Concrete, resolve the root sequence of the 3rd reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal, specifically comprises:
According to the figure place of described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of the 3rd reference signal and second reference signal, the part root sequence of second reference signal that the overlapped figure place of intercepting constitutes from the 3rd reference signal root sequence.
As Fig. 4, in the concrete mode one, the sub-carrier number that has with the transmission band subband is 120 to be that example is described as follows.
Determine the length X of " subband coring row ": the sub-carrier number that the length of subband coring row and the shared transmission band subband of this subband have has direct corresponding relation such as X=N.For example the subband bandwidth is 120 subcarriers, and then its corresponding reference signal common root must row length be exactly the X=120 position.
Generate the Zadoff-Chu sequence: find prime number N less than the maximum of X, generating mode according to the Zadoff-Chu sequence produces the Zadoff-Chu sequence that length is N then, why do like this is that its length is prime number because Zadoff-Chu is a kind of special sequence.Example above the continuity supposes that the common root sequence length that needs is X=120, then finds the largest prime number N=113 less than 120, generates the Zadoff-Chu sequence according to following formula then:
Parameter q in the expression formula, l belongs to system configuration.Determined that it is 113 Zadoff-Chu sequence a (k) that N=113 just can generate length as long as be appreciated that.
Generate subband coring row: the preceding X-N position of the Zadoff-Chu sequence that generates is copied to the last of sequence, and generating new length is the sequence of X, and the subband coring that the reference signal common root that Here it is needs must row is listed as.The continuity previous example, having generated length is the Zadoff-Chu sequence a (k) of N=113, the X-N=7 position with a (k) copies to the last of former sequence now, so just obtains subband coring row
Length is 120.
The user of the first reference signal correspondence " is listed as with reference to user's coring " according to the intercepting of Resources allocation position: at first that subband is shared subcarrier is according to k=0,1, ..., X-1 carries out label, the subcarrier number that the resource that the user is assigned to according to oneself is shared, the intercepting corresponding sequence is as oneself " user's coring row " from public subband coring row.Still, suppose that the user has been assigned to the 12nd to the 35th work song carrier wave and has transmitted according to top example, then from
Intercept out k=12,13 ..., 25 part is as user's coring row of first reference signal of this user's correspondence.
When the user of the second reference signal correspondence " is listed as with reference to user's coring " according to the intercepting of Resources allocation position.Still, suppose to be assigned to the 18th to the 70th work song carrier wave and transmit according to top example, then from
Intercept out K=18,19 ... 70 part is as user's coring row of first reference signal of this user's correspondence.
Can find by analysis: the subcarrier that first reference signal, two users corresponding with second reference signal distribute in this programme has lap K=18,19, ... 25, then two users coring row content of transmission of reference signals on overlapping subcarrier is the same.So as long as two users adopt different cyclic shifts just can carry out channel estimating to two users respectively; For other non-overlapped parts as the first reference signal K=12,13 ... the 17 and second reference signal K=26,27 ... 70, can adopt the channel estimation methods of other prior aries respectively two users to be carried out channel estimating, repeat no more once more.
As seen, the embodiment of the invention from the subsequence of common root sequence, select and have overlapping subsequence (K=18,19 ... 25 sequence) the root sequence of first reference signal and the root sequence of second reference signal.Multiplexing reference signal when making the transmission of the enterprising line data of identical running time-frequency resource with incomplete same sequence.
As seen, meet the following conditions, just can distinguish different reference signals, obtain independently channel estimating:
1, on the subcarrier of the common emission of different reference signals, do not need the root sequence of each reference signal in full accord, but require the root sequence content of each reference signal identical.
2, on the subcarrier of the common emission of different reference signals, each reference signal adopts different cyclic shifts.
Each user's root sequence can obtain by intercepting or splicing.After the condition on satisfy, can realize independently channel estimating.Below lift 3 kinds of concrete modes in the cards, still actual mode this and more can't be enumerated one by one, as long as the mode of the principle above satisfying can be carried out the independent channel estimation.
See also Fig. 5, in the concrete mode two, suppose that the subcarrier of second reference signal distribution of user's 2 correspondences is included within the first reference signal subcarrier scope of user's 1 distribution, then can intercept the sequence of respective length from the root sequence of reference signal 1.The two need adopt different cyclic shifts.An example is as shown below.Opposite, can be that the root sequence of reference signal 2 produces according to agreement, reference signal 1 directly adopts the root sequence of reference signal 2 on the subcarrier of common transmission, and the root sequence of other subcarriers can have other generating mode, does not do qualification.
Determine the length X of user 1 coring row: length and user's 1 shared sub-carrier number of coring row have direct corresponding relation.For example user 1 has distributed 72 subcarriers, and then its corresponding reference signal coring row length is exactly the X=72 position.Generate the Zadoff-Chu sequence: find prime number N less than the maximum of X, generating mode according to the Zadoff-Chu sequence produces the Zadoff-Chu sequence that length is N then, why do like this is that its length is necessary for prime number because Zadoff-Chu is a kind of special sequence.Example above the continuity supposes that the coring row length that needs is X=72, then finds the largest prime number N=71 less than 72, generates the Zadoff-Chu sequence according to following formula then:
Parameter q in the expression formula, l belongs to system configuration, has determined that as seen it is 71 Zadoff-Chu sequence a (k) that N=71 just can generate length.Generate user 1 coring row: the preceding X-N position of the Zadoff-Chu sequence that generates is copied to the last of sequence, and generating new length is the sequence of X, and Here it is needs user 1 coring to be listed as.The continuity previous example, having generated length is the Zadoff-Chu sequence a (k) of N=71, the X-N=1 position with a (k) copies to the last of former sequence now, so just obtains user 1 coring row
Length is 72.
Obtain user 2 coring row: subcarrier and user's 1 position overlapped that user's 2 bases oneself are distributed, from
The corresponding short sequence of middle intercepting is as the coring row of oneself.The 24-47 work song carrier position of supposing user's 2 shared subcarriers and user is overlapping, then user's 2 interceptings
The 24-47 position be listed as own coring.
Slightly perform an analysis and to find that this programme can guarantee that two users coring row content of transmission of reference signals on overlapping subcarrier is the same.
See also Fig. 6, in the concrete mode three, suppose that first reference signal 1 and second and third reference signal overlap, then with the second reference signal lap from the root sequence of second reference signal intercepting corresponding sequence, with the 3rd reference signal lap from the root sequence of the 3rd reference signal intercepting corresponding sequence, thereby obtain the root sequence of first reference signal after the splicing.First reference signal adopts different cyclic shifts with second, third reference signal, in the example of figure below, because that second reference signal and the 3rd reference signal do not have is overlapping, then can adopt identical cyclic shift on frequency domain.
User 2,3 coring is listed as according to prior art and generates.
User 1 is according to listing the corresponding subsequence of intercepting with the overlapping sub-carrier positions of user 2 from user 2 coring.
User 1 is according to listing the corresponding subsequence of intercepting with the overlapping sub-carrier positions of user 3 from user 3 coring.
With 2), 3) after the subsequence splicing that obtains in the step, obtain user 1 coring row.
By such design, receiving terminal can be distinguished multiplexing reference signal according to cyclic shift equally, obtains independently channel estimating.Cancelled the restriction of the necessary equal length of different reference signals simultaneously.
As seen the explanation by the foregoing description is for the demodulated reference signal of up MU-MIMO.If two users adopt MU-MIMO, not needing must be overlapping fully on subcarrier, and reference signal length is identical, and can only satisfy following two conditions:
1, on the subcarrier of the common emission of different reference signals, but require the root sequence content of each reference signal identical;
2, on the subcarrier of the common emission of different reference signals, each reference signal adopts different cyclic shifts.
Same for the out-hole run reference signal among the LTE.The present invention does not require that multiplexing uplink reference signals all uses equal length.
The embodiment of the invention also provides a kind of multiplexing equipment 700 of reference signal, and this multiplexing equipment can provide the terminal of out-hole run reference signal, also can provide the base station of downstream measurement reference signal.Present embodiment is to be applicable to that LTE advanced terminal is the example explanation, and the multiplexing equipment 700 of reference signal comprises:
Common root sequence generation module 710: be used for the sub-carrier number on definite transmission band, determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
The first reference signal generation module 720:, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band according to both allocations that the subcarrier of first reference signal is preset.
And then, determine the common root sequence by the embodiment of the invention according to sub-carrier number, according to both allocations that subcarrier is preset, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band.And then make the enterprising line data of identical running time-frequency resource can multiplexingly have the reference signal of incomplete same sequence when transmitting.
Optionally, the first reference signal generation module is further used for: the intercepting figure place constitutes whole root sequences of second reference signal from the root sequence of first reference signal, and described common root sequence is identical with the root sequence of described first reference signal.
See also Fig. 8, the multiplexing equipment 700 of reference signal further comprises: the second reference signal generation module 730: resolve the root sequence of first reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of first reference signal.Concrete, the second reference signal generation module 730: also be used for figure place according to described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of first reference signal and second reference signal, the overlapped figure place of intercepting constitutes the part root sequence of second reference signal from the first reference signal root sequence.
Further: if described common root sequence is formed by the root sequence of described first reference signal and the root sequence assembly of the 3rd reference signal, the second reference signal generation module 730 also is used for: resolve the root sequence of the 3rd reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal; Splicing from the part root sequence of choosing the sequence of following with sequence and the 3rd reference signal of first reference signal, forms the whole in sequences of second reference signal respectively.
To sum up, the embodiment of the invention provides the multiplexing method and the base station of reference signal, makes to select the root sequence of first reference signal with overlapping subsequence and the root sequence of second reference signal from the subsequence of common root sequence.And then multiplexing reference signal during the transmission of the enterprising line data of identical running time-frequency resource with incomplete same sequence.
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 by described protection range with claim.
Claims (11)
1. the multiplexing method of a reference signal is characterized in that, comprising:
Determine the sub-carrier number on the transmission band;
Determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
According to both allocations that the subcarrier of first reference signal is preset, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band.
2. the method for claim 1 is characterized in that, also comprises: described common root sequence is identical with the root sequence of described first reference signal, and the intercepting figure place constitutes whole root sequences of second reference signal from the root sequence of first reference signal.
3. the method for claim 1 is characterized in that, also comprises: resolve the root sequence of first reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of first reference signal.
4. method as claimed in claim 3 is characterized in that, resolves the root sequence of first reference signal, and the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of first reference signal, specifically comprises:
According to the figure place of described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of first reference signal and second reference signal, the overlapped figure place of intercepting constitutes the part root sequence of second reference signal from the first reference signal root sequence.
5. method as claimed in claim 3 is characterized in that, described common root sequence is formed by the root sequence of described first reference signal and the root sequence assembly of the 3rd reference signal;
Described method further comprises:
Resolve the root sequence of the 3rd reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal;
The part root sequence that splicing is chosen from the root sequence of the root sequence of first reference signal and the 3rd reference signal respectively forms whole root sequences of second reference signal.
6. method as claimed in claim 5 is characterized in that, resolves the root sequence of the 3rd reference signal, and the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal, specifically comprises:
According to the figure place of described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of the 3rd reference signal and second reference signal, the part root sequence of second reference signal that the overlapped figure place of intercepting constitutes from the 3rd reference signal root sequence.
7. the multiplexing equipment of a reference signal is characterized in that, comprising:
Common root sequence generation module: be used for the sub-carrier number on definite transmission band, determine the common root sequence that signal root sequence for reference is carried according to sub-carrier number, the figure place of described common root sequence is identical with sub-carrier number;
The first reference signal generation module:, constitute the root sequence of first reference signal from common root sequence intercepting figure place in transmission band according to both allocations that the subcarrier of first reference signal is preset.
8. base station as claimed in claim 7, it is characterized in that, the first reference signal generation module is further used for: the intercepting figure place constitutes whole root sequences of second reference signal from the root sequence of first reference signal, and described common root sequence is identical with the root sequence of described first reference signal.
9. multiplexing equipment as claimed in claim 7 is characterized in that, also comprises:
The second reference signal generation module: resolve the root sequence of first reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of first reference signal.
10. multiplexing equipment as claimed in claim 9 is characterized in that, also comprises:
The second reference signal generation module: be used for figure place according to described common root sequence to the respective sub label, according to the overlay condition of the shared subcarrier number of the root sequence of the shared subcarrier number of the root sequence of first reference signal and second reference signal, the overlapped figure place of intercepting constitutes the part root sequence of second reference signal from the first reference signal root sequence.
11. multiplexing equipment as claimed in claim 9 is characterized in that, described common root sequence is formed by the root sequence of described first reference signal and the root sequence assembly of the 3rd reference signal;
The second reference signal generation module also is used for: resolve the root sequence of the 3rd reference signal, the intercepting figure place constitutes the part root sequence of second reference signal from the root sequence of the 3rd reference signal; Splicing from the part root sequence of choosing the sequence of following with sequence and the 3rd reference signal of first reference signal, forms the whole in sequences of second reference signal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103249.7A CN102142916B (en) | 2010-01-28 | 2010-01-28 | Multiplexing method and multiplexing equipment of reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103249.7A CN102142916B (en) | 2010-01-28 | 2010-01-28 | Multiplexing method and multiplexing equipment of reference signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102142916A true CN102142916A (en) | 2011-08-03 |
| CN102142916B CN102142916B (en) | 2015-01-21 |
Family
ID=44410172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103249.7A Expired - Fee Related CN102142916B (en) | 2010-01-28 | 2010-01-28 | Multiplexing method and multiplexing equipment of reference signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102142916B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957654A (en) * | 2011-08-29 | 2013-03-06 | 中兴通讯股份有限公司 | Method and device for transmitting reference signals |
| WO2016004634A1 (en) * | 2014-07-11 | 2016-01-14 | Mediatek Singapore Pte. Ltd. | Method for enb, ue uplink transmission and reception |
| CN105812106A (en) * | 2014-12-31 | 2016-07-27 | 华为技术有限公司 | Uplink data transmitting method and device |
| CN108282275A (en) * | 2017-01-06 | 2018-07-13 | 华为技术有限公司 | Data transmission method and device |
| WO2018228568A1 (en) * | 2017-06-16 | 2018-12-20 | 华为技术有限公司 | Wireless communication method and device |
| WO2020216068A1 (en) * | 2019-04-25 | 2020-10-29 | 华为技术有限公司 | Method and apparatus for sending reference signals |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995007581A1 (en) * | 1993-09-10 | 1995-03-16 | Deutsche Thomson-Brandt Gmbh | Method for the transmission of reference signals in an ofdm system |
| US20080225688A1 (en) * | 2007-03-14 | 2008-09-18 | Kowalski John M | Systems and methods for improving reference signals for spatially multiplexed cellular systems |
-
2010
- 2010-01-28 CN CN201010103249.7A patent/CN102142916B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957654A (en) * | 2011-08-29 | 2013-03-06 | 中兴通讯股份有限公司 | Method and device for transmitting reference signals |
| CN102957654B (en) * | 2011-08-29 | 2018-03-02 | 中兴通讯股份有限公司 | The transmission method and device of a kind of reference signal |
| WO2016004634A1 (en) * | 2014-07-11 | 2016-01-14 | Mediatek Singapore Pte. Ltd. | Method for enb, ue uplink transmission and reception |
| CN105812106A (en) * | 2014-12-31 | 2016-07-27 | 华为技术有限公司 | Uplink data transmitting method and device |
| CN105812106B (en) * | 2014-12-31 | 2019-05-24 | 华为技术有限公司 | The method and apparatus for transmitting upstream data |
| CN108282275A (en) * | 2017-01-06 | 2018-07-13 | 华为技术有限公司 | Data transmission method and device |
| US10965416B2 (en) | 2017-01-06 | 2021-03-30 | Huawei Technologies Co., Ltd. | Data transmission method and apparatus |
| CN108282275B (en) * | 2017-01-06 | 2021-09-14 | 华为技术有限公司 | Data transmission method and device |
| WO2018228568A1 (en) * | 2017-06-16 | 2018-12-20 | 华为技术有限公司 | Wireless communication method and device |
| US11139906B2 (en) | 2017-06-16 | 2021-10-05 | Huawei Technologies Co., Ltd. | Wireless communication method and wireless communications apparatus |
| WO2020216068A1 (en) * | 2019-04-25 | 2020-10-29 | 华为技术有限公司 | Method and apparatus for sending reference signals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102142916B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100384113C (en) | Multi-carrier transmission method and data transmitter | |
| CN100592648C (en) | Methods and apparatus for random access in multi-carrier communication systems | |
| JP4197568B2 (en) | Transmission method, reception method, transmission device, reception device | |
| CN100488184C (en) | OFDM communication system and method | |
| CN102823187B (en) | System and method for pilot tone assist type Choose for user | |
| RU2009120546A (en) | JOINT USE OF MULTIPLEXING SCHEMES WITH MULTIPLE CARRIERS AND WITH ONE CARRIER FOR WIRELESS COMMUNICATION | |
| CN102142916B (en) | Multiplexing method and multiplexing equipment of reference signal | |
| CN101631099A (en) | Multi-input and multi-output selectivity OFDM underwater sound communication system and method | |
| CN109474305B (en) | 5G multi-carrier spread spectrum underwater acoustic communication method | |
| KR102116347B1 (en) | A method for removing interference between resource blocks for filterbank multicarrier scheme and device using thereof | |
| CN107819714B (en) | Method and equipment in UE (user equipment) supporting variable subcarrier spacing and base station | |
| CN1988434B (en) | Pilot frequency sub carrier grouping method in orthogonal frequency division multiple access system | |
| US20230189125A1 (en) | User equipment, method for controlling the same and network side device | |
| KR100945859B1 (en) | Method and apparatus for creating common physical channel | |
| WO2011001226A1 (en) | Integrated circuit with channel estimation module and method therefor | |
| CN111901877A (en) | Resource allocation method, equipment and storage medium | |
| EP0866577B1 (en) | Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals | |
| US7929621B2 (en) | Terminal demodulation apparatus and method | |
| CN106789803A (en) | Data communications method, device and base station | |
| CN105516031A (en) | Channel estimation and channel equalization method of fast frequency hopping system | |
| CN112311712B (en) | Signal sending and receiving method, terminal and device | |
| US20050007946A1 (en) | Multi-carrier transmission | |
| CN101299736B (en) | Method and system for implementing channel quality indication information transmission, subscriber terminal and base station | |
| CN101098151A (en) | Method for receiving broadcasting signal | |
| CN102025393B (en) | Data transmission method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190128 |