CN1224547A - Method for determining strength of co-channel signals, and receiver - Google Patents

Abstract

The invention relates to a method for determining strength of co-channel signals, and a receiver utilizing the method. The training sequences of the signals to be received are classified into subsets (21), and a channel estimate (22) related to the signal is formed by comparing the training sequences of the received signal to the training sequences of the subset signals. By means of the channel estimate, a strength estimate (23 - 24) is formed for each received signal, the estimate being used to arrange the received signals (27) according to their strength. When the signal strengths are known, it is possible to decrease the effect of the interference signals on the signal to be detected. In a diversity receiver, a correlation result can be formed of the channel estimates of the signals of each subset, excluding the signal to be detected, the result being used in interference elimination.

Description

Method and a receiver of being used for the intensity of definite all co-channel signals

The present invention relates to a method that is used for the intensity of definite all co-channel signals, this method is used in the digital radio system that comprises several base stations and user terminal, these base stations and user terminal carry out work as all transmitters and all receivers that transmit and receive all signals, these signals are all signals of wanting and/or all interference signals, they propagate and comprise at least the predetermined sequence of an expression transmitter feature in all channels, when receiving all signals all signals are taken a sample.

The present invention also relates to a method that is used for the intensity of definite all co-channel signals, this method is used in the digital radio system that comprises several base stations and user terminal, these base stations and user terminal carry out work as all transmitters and all receivers that transmit and receive all signals, these signals are all signals of wanting and/or all interference signals, they propagate and comprise at least the predetermined sequence of an expression transmitter feature in all channels, and all receivers comprise all diversity branches.

The invention further relates to one and be arranged to be used in a receiver in the digital radio system that comprises several base stations and user terminal, these base stations and user terminal carry out work as all transmitters and all receivers that transmit and receive all signals, these signals are by all dissemination channels, they are all signals of wanting and/or all interference signals, they are comprising a predetermined sequence at least, and arrange all receivers that all signals are taken a sample.

In a cellular radio system, the quality of a connection between a base station and user terminal is constantly to change.This variation is all interference factors that decayed and take place on radio path as the distance in a fading channel and the function of time by all radio waves, and for example all other signals on same channel are caused.In a cellular radio system, in all different sub-districts, need repeatedly to use same frequency owing to limited frequency range.In this case, one is operated in a receiver on the frequency and receives all co-channel signals, and these co-channel signals are from several transmitters and along some different propagated, so be all multi-path signals.Can be by utilizing the common ability of the most strongly disturbing detection being improved receiver.For this purpose, receiver should be determined all intensity level of all unlike signals and all signals be implemented the estimation of cochannel.Problem in the prior art is just on the position of determining the strongest all signal.

Can apply the present invention to especially in the digital cellular radio system, wherein emission is to take place on the basis of a time-division modulation.In this case, time slot typically comprises a burst by a user terminal or a base station.A burst sequence generally includes a beginning, and data are adjusted and stopped sequence.Adjusting sequence is determined in advance.All beginnings and the length that stops sequence having only several symbols, but all data and adjust the length that sequence has a dozens of symbol usually.Adjust sequence and represent a predetermined sequence.Because the number of known all symbols is quite few in adjusting sequence, and the number of all signals is usually considerably big, so it is useless to the formation of all signal length estimations that the problems of the prior art are to adjust sequence, so can not determine the signal of Zhu Zuiqiang and/or the position of interference.

Multipath receives and usually utilizes all diversity receivers.All signal combination before or after prevailing all diversity receivers will detect, and they comprise that for example, select combination, high specific makes up, equal gain combination.In the combination of prior art, because combination is what to carry out on the basis of signal to noise ratio, so strong jamming is easy to and actual signal combination.A diversity branch that can not receive a signal or receive a rub-out signal should be used for combination.

The objective of the invention is to make and find all signals of wanting and disturb the two to become easily and make the diversity combination more effective.

This purpose can be used in a kind of method of describing in the preamble and reach, the method is characterized in that from all predetermined sequence of all signal correction that receives, form all subclass of all predetermined sequences, for each all subclass on basis and all subclass of formation of being sampled as with the signal of the cochannel of all receptions, implement channel estimating respectively, form a channel estimating relevant as a result who estimates with each subclass, by the estimated signal of channel estimating formation for subclass, this signal and acknowledge(ment) signal are compared, and relatively form intensity and estimate by said, this intensity estimate to have described subclass at least one signal intensity and be used to select at least one that the subclass of maximum signal is arranged.

The feature of the method according to this invention also is to form from all predetermined sequence with all signal correction that receives all subclass of all predetermined sequences, for each all subclass on basis and all subclass of formation of being sampled as with the signal of the cochannel of all receptions, implement channel estimating respectively, form a channel estimating relevant as a result who estimates with each subclass, by the estimated signal of channel estimating formation for subclass, this estimated signal and acknowledge(ment) signal are compared, and relatively form intensity and estimate by said, this intensity estimation has been described the intensity of at least one signal of subclass and has also been used this intensity to estimate when having selected at least one subclass that maximum signal is arranged, between all diversity branches, form a correlated results from all channel estimating, this result is used for, for example, reduce the amount of disturbing.

Receiver according to the present invention is characterised in that receiver comprises timing unit and the apparatus for grouping that is used for forming from all predetermined sequence relevant with all received signals and that be stored in timing unit all subclass of all predetermined sequences, comprise the channel estimating apparatus that is used for each subclass is implemented respectively channel estimating with receiver, by the sampling of all received signals and "the philosophers," referring to the philosophers or their works, outside the Confucianists Jian row of formation estimation is taken place, form a channel estimating relevant with each subclass, and arrange channel estimating apparatus to make it form an estimated signal by channel estimating and predetermined sequence, compare with acknowledge(ment) signal with for the estimated signal of subclass, and arrange channel estimating apparatus that it is estimated by said relatively formation for all intensity of all subclass signals.

The method according to this invention provides all sizable advantages.The present invention can find the signal of Zhu Zuiqiang, particularly all interference signals with very big likelihood.Another advantage particularly, it does not need the number of all co-channel signals is limited, and just can form the estimation of all signal strength signal intensities by the predetermined adjustment sequence of using a weak point.For example, in a gsm system, have only tens predetermined symbols can be used in one and adjust in the sequence, but in the method, need the number of estimative all parameters smaller.In the diversity combination, by the method according to this invention, have only all signals of wanting to be combined and can suppress and disturb, make signal to noise ratio improve, the detection of symbol is more reliable.In particularly arrangement according to the present invention being applied to suppress to disturb.

Below, we carry out more detailed description with reference to all embodiment and according to appended all figure to the present invention, wherein

Fig. 1 is illustrated in a normal burst in the gsm system,

Fig. 2 represents a flow chart of the method according to this invention,

Fig. 3 represent according to system model of arrangement of the present invention and

Fig. 4 represents a diversity receiver.

We can be applied to all DCS and gsm system especially with arrangement according to the present invention, yet the present invention is not limited to these application.

Below we investigate the arrangement that is applied to a gsm system according to of the present invention in more detail.A normal burst of a gsm system as shown in Figure 1.A normal burst typically comprises and has about 150 symbols altogether.Position of a symbology or a bit combination.All symbols of a burst are arranged in all sequences, and all begin symbols and all stop elements or all tail symbols 10, all data symbol sequences 11 that provide in two parts and all adjustment symbols 12 are provided these sequences.Suppose that all symbols are ladies and gentlemen as usually.In this case, can represent that is adjusted a sequence in the mode of Fig. 1, wherein in the beginning of adjusting sequence four guard bits 13 be arranged partly, they are with identical in four positions of the latter end of adjusting sequence.Except all guard bits, adjust sequence and also comprise all reference bits 14, normally 16 of their numbers.

Arrangement according to the present invention is to be transmitted to receiver together with a predetermined sequence and signal, and this predetermined sequence is preferentially represented the feature of each transmitter.Signal can be that a signal of wanting or one want detected signal, or other the interference signal of signal correction of and all.A predetermined sequence in a gsm system for example, preferentially is that of a normal burst adjusts sequence.Adjusting sequence is used for arranging all received signals according to all received signals from being up to the most weak all intensity.Typically select to have a group of maximum signal from these sets of signals.This group can be one group of signal of wanting or one group of interference signal.If subclass is one group of interference signal, then in the co-channel signal that receives, can reduce the effect of interference, so can have the signal of wanting of less interference to transfer out and detect an original signal of ratio.

In order to determine the intensity of all signals, the method according to this invention is from estimating all multi-path channels.By usefulness, for example, prevailing and be easy to a use method of estimation, maximum likelihood (ML) method are implemented cochannel and are estimated.For example can obtain channel estimating from formula (1) $\hat{h}=(M^H{V}^{-1}M{{)}^{-1}M}^H{V}^{-1}y,---\left(1\right)$

Wherein, matrix M is M=[M ₁, M ₂... M _N], V is the covariance of noise, and y is the multi-channel signal of the multipath propagation of a reception.In a digital radio system, y is formed by all samplings that obtain from received signal.M ^HBe the hermitian matrix and the V of matrix M ^-1It is an inverse matrix of matrix V.Suppose that noise is a white noise, then formula (1) also can be write as following form $\hat{h}={\left(M^{H}M\right)}^{-1}{M}^{H}y---\left(2\right)$ And matrix M _nCan enough following forms represent

M wherein _{J, i}Represent all symbols of a predetermined sequence.And the covariance V of noise can, for example, in following mode from two variable n at random ₁And n ₂Form

V _n1,n2=cov{n ₁,n ₂}=E{(n ₁-μ ₁)(n ₂-μ ₂) ^T} (4)

Wherein, operator E represents the formation of a desired value, μ ₁Be variable n ₁Desired value and μ ₂Be variable n ₂A desired value.We hypothesis matrix M comprises that the signal of N cochannel and the predetermined sequence of hypothesis comprise P+L symbol.Received signal y has following form for predetermined sequence

y=Mh+n (5)

Wherein, to represent Gaussian noise and h be the impulse response of channel to n.

Now, we investigate the formation of the matrix M that needs in more detail in cochannel is estimated.For example, the purpose of supposing us provides the channel estimating of two signals and each channel estimating is had the tap of five impulse responses.For example, will be used as predetermined sequence according to the following adjustment sequence (reference length is 16) of gsm system:

Adjust sequence 1:0010010111000010

Adjust sequence 2:0010110111011110

P is that P=16 and L are L=5-1=4 (number of required all repeats bits are littler one than the number of estimated channel tap) now.Come four positions of self-adjusting EOS part to begin the part repetition, so all sequences are complete sequences in the adjustment sequence.

Sequence 1:0010 0010010111000010

Sequence 2:1110 0010110111011110

Cochannel estimated matrix M is as follows now

All row of matrix are to form like this, make p+1 be listed as with respect to the p row and are delayed a sequence bit.

The method according to this invention is based on such fact, promptly in an estimation procedure, only considers the subclass of all received signals, and is noise with other all signal hypothesis preferentially.Realize this point, make the group of all predetermined sequence relevant be classified into all subclass with all received signals.In the mode that in formula (1), proposes the many subclass that need number are implemented cochannels respectively then and estimate, so that obtain impulse response with each signal correction.This impulse response is the channel estimating of each signal.After having formed channel estimating, can form the estimation of all signal strength signal intensities in some kinds of different modes.When sequentially arranging all signals, can determine the strongest all interference signal, and can suppress the strongest all interference signal at least in part with the method that a suitable inhibition is disturbed according to the intensity of all signals.

When only considering all subclass, for the channel estimating of subclass

Following form is arranged $\widehat{h_s}={\left(M_s^H{M}_s\right)}^{-1}{M}_s^{H}Y---\left(7\right)$

Wherein $\hat{h}={[\widehat{h_{s.1}^T}\widehat{h_{s.2}^T}...\widehat{h_{s.K}^T]}}^T$ And M _s=[M _{S, 1}M _{S, 2}... M _S.K] and

It is channel estimating

Response.All matrix M _{S, i}Be and formula (6) in matrix M be similarly constructed.Estimative group size is k.Again for M _sPreferentially select all possible combination of all different predetermined sequences, and for special channel estimating of each combination calculation

We investigate flow chart by Fig. 2 in more detail to the method according to this invention.In a square frame 20, determine all predetermined sequence or all adjustment sequences that to use.In a square frame 21, all adjustment sequences are divided into all group, make subclass M _jComprise k and adjust sequence.After this, the received signal y from a square frame 28 passes through subclass M _iCarry out channel estimating.In order to determine all signal strength signal intensities, we utilize channel estimating, and form an estimated signal y for received signal in a square frame 23 _i, make

In a square frame 24, at received signal y and estimated signal y _iBetween form a surplus.This can pass through, for example, according to following about all square errors and formula in k the signal of subclass each, calculate the poor ε of the ladies and gentlemen in all adjustment sequences of all signals of mentioning in the above _iRealize

ε _i=∑|y-y _i| ² (8)

We also can be poor, and by division or by carrying out received signal y and estimated signal y _iOther computing of certain that compares comes than than signal mutually.In a square frame 25, we check whether investigated all subclass.If also all subclass are not investigated, then process is for example by pointing out that i=i+1 moves to the next subclass in a square frame 26.Be considered to significant all subclass in advance as long as investigated, the order that all subclass are investigated is unimportant.At all subclass M that wants _iAfter having been investigated, by signal ε as a result relatively _iIn a square frame 27, successively all subclass are classified.For example, the ε that is on duty _iHour, this subclass relatively has all signals of large-signal intensity.In a square frame 29, make and run abort.

A receiver comes signal and an interference signals difference of a reality usually.For example, user terminal is relevant for the information of the base station in the actual coverage area at its place.So user terminal knows that all other signals are all interference signals from all other sub-districts.When all intensity that forms all different signals is estimated, also can find the interference signal of Zhu Zuiqiang.Preferentially this information can be used for suppressing to disturb, make and to suppress the strongest all interference signal at least or can reduce their effect.

In according to one embodiment of present invention, receiver is a user terminal, and selects all predetermined sequence of two signals for each subclass.In these signals first preferentially is the signal of base station in the actual coverage area at user terminal place.This signal is very strong when receiving naturally usually.The predetermined sequence of other in subclass is the sequence of certain other the signal that received by user terminal, makes can match with all predetermined sequence of all signals of wanting from the predetermined sequence of the signal of base station of user terminal.The representative of these other signal is to the interference of actual signal.So can estimate all channels of all interference signals with actual signal in couples, make when each estimation matrix M _sForm by two predetermined sequences, as shown in Equation (6): the sequence of the base station of user terminal and the sequence of interference base station.When the base station is receiver and user terminal when being transmitter, can follow a similar process.

If comprising the number of all signals of the signal of wanting is Q, then carry out Q-1 channel estimation process.In this mode, each interference signal can be distributed to a channel estimating.If a subclass is made up of a signal or two signals, one of them signal is very strong, and then the order of all intensity estimations of all subclass is corresponding with the order of all signal strength signal intensity estimations.If subclass is bigger, then can detect the signal of Zhu Zuiqiang at least, this usually is enough to further processing.

All work in all square frames 23 and 24 of the flow chart of Fig. 2 also can be calculated all taps that impulse response estimates and so that obtain the intensity of each signal estimate replace, and can be according to their all signals of sequence arrangement and all subclass of all intensity.Preferentially can with all taps and calculate as other algebraical sum of a quadratic sum or certain.

According to system model of the present invention as shown in Figure 3.System model comprises all transmitters 30 to 32, and 36, one of 33 to 35, one noise sources of all channels are with all channels and 37, one receiving filters of noise group adder altogether 38, one detectors 39, channel estimating apparatus 40, apparatus for grouping 41 and timing unit 42.Receiver 43 comprises all square frames 38 to 42.All transmitters 30 to 32, their number is Q, they for example, are all base stations of radio system, with their signal y _{K, i}Be transmitted to one by h _iA channel CH of the impulse response of expression _i33 to 35.In adder 37, noise n is added to all signal y _{K, i}On.Receiver 43, it can be, for example, and the user terminal of a radio system, promptly mobile phone normally by typically comprising the receiving filter 38 of an antenna and a radio-frequency filter, receives a multi channel signal $\underset{i}{\overset{Q}{\mathrm{\Σ}}}{y}_{k,i}+n$ After filtering, signal y propagate into detector 39 and channel estimating apparatus 40 the two, channel estimating apparatus 40 the method according to this invention are implemented cochannel and are estimated by all subclass of a predetermined sequence utilizing received signal y and arrive from apparatus for grouping 41.The data of apparatus for grouping 41 from being obtained by timing unit 42 form all subclass of all predetermined sequences.Detected signal propagates into all other parts (not drawing the figure) of receiver from checkout gear 39, and checkout gear 39 for example, is the detection viterbi algorithm of a prior art.For example in checkout gear 39, implement the inhibition of interference.

As everyone knows, need be in order to utilize all different diversity receivers about the information of signal quality, the signal that arrives from all diversity branches that separates in these diversity receivers is combined.We investigate the theoretical foundation of a diversity receiver in more detail now.We carry out the number that following hypothesis: N is all co-channel signals, and E is the number of all antenna elements, and L is the length of channel memory, and promptly L+1 channel tap and k are the sampling indexes.One constantly the sampling y of the received signal of k in antenna element e according to the following calculating of formula (5)

y _k,e=d _k ^Th _e+n _k,e, (9)

D wherein _k ^TCorresponding to matrix M and comprise all vector b _{K, n}, make d _k=[b _{K, 1}b _{K, 2}B _{K, N}] ^TAnd b wherein _{K, n}=[b _{K, n}b _{K-1, n}b _{K-L, n}] and it comprise and all symbol b of the ladies and gentlemen's correspondence in m cochannel _{K, n}∈ [1,1].The all symbol b that answer from the received signal sampling that vector form is arranged of E antenna element _{K, n}∈ [1,1].The received signal sampling that vector form is arranged from E antenna element has following form $y_{k,e}=\left[\begin{array}{c}{d}_k^T{h}_1\\ d_{\mathrm{<figure-callout\; id="2"\; label="k\; T\; h"\; filenames="A9719608100282.png"\; state="\{\{state\}\}">k</figure-callout>}}^T{h}_{}{}_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ d_k^T{h}_E\end{array}\right]+n_{k,e}---\left(10\right)$

In this mode, can be with a spatial correlation matrix R _kForm form a correlated results

R _k=y _ky _k ^T (11)

This also can be expressed as form R=＜y randomly _ky _k ^T, can show R is following in more detail $R=\left[\begin{array}{ccccc}{h}_1{\mathrm{<figure-callout\; id="1"\; label="h"\; filenames="A9719608100282.png,A9719608100291.png"\; state="\{\{state\}\}">h</figure-callout>}}_1^{.T}& .& .& .& h_1{h}_E^{.T}\\ .& .& .& .& .\\ .& .& .& .& .\\ .& .& .& .& .\\ {\mathrm{<figure-callout\; id="1"\; label="h\; E\; h"\; filenames="A9719608100282.png,A9719608100291.png"\; state="\{\{state\}\}">h</figure-callout>}}_E{h}_{}^{}{}_1^{.T}& .& .& .& h_E{h}_E^{.T}\end{array}\right]+{\mathrm{\&sigma;}}^{2}I---\left(12\right)$

H wherein _iBe the impulse response of i antenna element or diversity branch, h ^*Be the complex conjugate of impulse response, σ ²The effective value and the I that are noise are unit matrixs.Impulse response h preferentially comprises then all impulse response of one of all co-channel signals.The size of matrix R is E * E, and E is the number of all antenna elements.If eliminate the impulse response of the signal of wanting from matrix R, then correlation matrix R is an interference matrix, and it can be directly used in the algorithm, at G.Bottomley, " AdaptiveAntennas and MLSE equalisation ", Proc.of IEEE Vehicular Tech.Conf., Chicago, in 1995 it has been carried out more detailed description, we combine this paper as a reference with the application.This algorithm has the type of MLSE (Maximum Likelihood SequenceEstimation) (maximum-likelihood sequence estimation), and it searches for most probable transfer sequence.For example, if in formula (12), omit impulse response from the signal of base station in the coverage area at user terminal place, then obtain a matrix R who only forms, and can reduce the effect of all signals and base station signal generation interference by all interference channel estimations.

Fig. 4 represents a structure according to receiver of the present invention.This receiver comprises E antenna 50, all filters 51, relevant apparatus 52, combination and checkout gear 53, all channel estimating apparatus 40, all apparatus for grouping 41 and all timing unit 42.In this structure, propagate into channel estimating apparatus 40 and the combination and the checkout gear 53 of each diversity branch by filter 51 by a signal of antenna 50 receptions.The method according to this invention is implemented channel estimating in each diversity branch that all devices 40 to 42 are arranged, wherein install all predetermined sequences of 42 storages, and all subclass and device 40 that device 41 forms all sequences form channel estimating.After this, in the relevant apparatus 52 of correlator that is a routine, from all impulse response of all interference signals, calculate the correlation matrix R of a big or small E * E, wherein preferentially E is the number of used all diversity branches 55 to 56.For example, this correlation matrix is used for when the amount that reduces interference at combination and checkout gear 53 when all signals are made up.

Predetermined sequence should have all characteristics of good auto-correlation and cross-correlation, makes the method according to this invention to work in best possible mode.All different sequences can be divided into all binary and heterogeneous sequences.A famous binary sequence family is all prime sequences.For example, they form from m sequence with all shift registers.The cross-correlation of all prime sequences has three values $-\frac{1}{N}t\left(n\right),-\frac{1}{N},\frac{1}{N}[t\left(n\right)-2]$ , wherein t (n) is

N is n=1,2,3 ... N, N are that sequence length and N are N=2 ⁿ-1.A length that is suitable for preferentially having as the prime sequence of predetermined sequence 31 symbols, in this case, all cross correlations obtain all values With

There are 33 prime sequences that 31 symbol lengths are arranged.In the method according to the invention, preferentially use these sequences as predetermined sequence 12:

1 0?0?0?1?1?0?1?1?1?1?0?1?1?0?1?0?0?0?1?1?1?1?1?1?0?1?0?0?0?0?0

2 1?1?0?0?0?1?0?0?1?1?1?1?1?1?0?0?0?0?1?0?1?0?0?1?1?1?1?0?0?0?1

3 0?1?1?1?1?0?1?0?1?0?1?1?0?0?0?0?0?0?0?0?0?1?0?0?1?0?1?0?0?1?0

4 0?0?0?0?0?1?1?0?0?0?1?0?1?0?0?0?0?1?0?1?1?1?1?0?0?0?1?0?1?0?1

5 1?1?1?1?1?1?1?1?0?0?0?1?1?0?0?0?1?1?1?0?1?0?1?1?0?0?1?1?0?1?1

6 0?0?0?0?1?1?0?1?0?1?1?1?1?0?0?1?1?0?0?0?0?0?0?1?0?0?0?0?1?1?0

7 1?1?1?0?1?0?0?1?1?0?1?1?1?0?1?1?0?1?0?1?0?1?0?1?0?1?1?1?1?0?1

8 0?0?1?0?0?0?0?0?0?0?1?1?1?1?1?0?1?1?1?1?1?1?0?1?1?0?0?1?0?1?0

9 1?0?1?1?0?0?1?1?0?0?1?1?0?1?0?1?1?0?1?0?1?1?0?0?0?1?0?0?1?0?1

10 1?0?0?1?0?1?0?1?0?0?1?0?0?0?1?1?0?0?0?0?1?1?1?1?1?1?1?1?0?1?0

11 1?1?0?1?1?0?0?1?0?0?0?0?1?1?1?0?0?1?0?0?1?0?0?0?1?0?0?0?1?0?0

12 0?1?0?0?0?0?0?1?0?1?0?1?0?1?0?0?1?1?0?0?0?1?1?0?0?1?1?1?0?0?0

13 0?1?1?1?0?0?0?1?1?1?1?0?0?0?0?1?1?1?0?1?1?0?1?1?1?0?0?0?0?0?1

14 0?0?0?1?0?0?0?0?1?0?0?0?1?0?1?1?1?1?1?0?0?0?0?0?0?1?1?0?0?1?1

15 1?1?0?1?0?0?1?0?0?1?0?1?1?1?1?1?1?0?0?1?0?1?1?1?1?0?1?0?1?1?1

16 0?1?0?1?0?1?1?1?1?1?1?1?0?1?1?1?0?1?1?1?1?0?0?0?0?0?1?1?1?1?0

17 0?1?0?1?1?1?0?0?1?0?1?0?0?1?1?0?1?0?1?0?0?1?1?1?0?0?0?1?1?0?1

18 0?1?0?0?1?0?1?0?0?0?0?0?0?1?0?1?0?0?0?1?1?0?0?1?0?1?0?1?0?1?1

19 0?1?1?0?0?1?1?1?0?1?0?0?0?0?1?0?0?1?1?0?0?1?0?1?1?1?0?0?1?1?1

20 0?0?1?1?1?1?0?1?1?1?0?0?1?1?0?0?1?0?0?1?1?1?0?0?1?1?1?1?1?1?1

21 1?0?0?0?1?0?0?0?1?1?0?1?0?0?0?1?0?1?1?0?1?1?1?0?1?0?0?1?1?1?1

22 1?1?1?0?0?0?1?0?1?1?1?0?1?0?1?0?1?0?0?0?1?0?1?0?0?1?0?1?1?1?0

23 0?0?1?1?0?1?1?0?1?0?0?1?1?1?0?1?0?1?0?0?0?0?1?1?1?1?0?1?1?0?0

24 1?0?0?1?1?1?1?0?0?1?1?1?0?0?1?0?1?1?0?1?0?0?0?0?1?1?0?1?0?0?1

25 1?1?0?0?1?1?1?1?1?0?1?0?1?1?0?1?1?1?1?1?0?1?1?0?1?1?0?0?0?1?0

26 0?1?1?0?1?1?0?0?0?0?0?1?0?0?1?1?1?0?1?1?1?0?1?0?1?1?1?0?1?0?0

27 0?0?1?0?1?0?1?1?0?1?1?0?1?1?1?1?0?0?1?0?0?0?1?0?1?0?1?1?0?0?1

28 1?0?1?0?0?1?0?1?1?0?0?1?0?1?1?0?0?0?0?1?0?0?1?0?0?0?0?0?0?1?1

29 1?0?1?1?1?0?0?0?0?1?1?0?0?1?0?0?0?1?1?1?0?0?1?1?0?1?1?0?1?1?0

30 1?0?0?0?0?0?1?1?1?0?0?0?0?0?0?0?1?0?1?1?0?0?0?1?1?0?1?1?1?0?0

31 1?1?1?1?0?1?0?0?0?1?0?0?1?0?0?1?0?0?1?1?0?1?0?0?0?0?0?1?0?0?0

32 1?0?1?0?1?1?1?0?1?1?0?0?0?1?1?1?1?1?0?0?1?1?0?1?0?0?1?0?0?0?0

33 1?0?1?1?0?1?0?1?0?0?0?1?1?1?0?1?1?1?1?1?0?0?1?0?0?1?1?0?0?0?0

Preferential especially is with following 7-, 10-or 15-sequence set: 21,23,25,26,30,31,32 or 5,16,18,19,21,23,26,30,31,32 or 2,3,4,5,8,10,16,21,23,25,26,28,29,30,31, because in this case, for example, it is best that all cross correlations reach.

Also preferentially use following all binary sequences in the method according to the invention:

1 0?0?0?0?0?0?1?0?1?1?0?0?1?1?1?0?1?0?1?1

2 0?0?0?0?0?0?1?1?0?1?0?1?1?1?0?0?1?1?0?1

3 0?0?0?0?0?1?0?0?0?1?1?0?1?1?0?1?0?1?1?1

4 0?0?0?0?0?1?0?0?1?0?1?0?0?0?1?0?0?1?1?1

5 0?0?0?0?0?1?0?0?1?0?1?1?1?0?0?1?1?1?0?1

6 0?0?0?0?0?1?0?0?1?1?0?0?0?0?1?0?1?0?1?1

7 0?0?0?0?0?1?0?1?1?0?1?0?0?0?1?0?0?0?1?1

8 0?0?0?0?0?1?0?1?1?1?0?0?1?1?1?0?1?0?0?1

9 0?0?0?0?0?1?1?0?0?0?1?0?0?0?1?0?1?1?0?1

10 0?0?0?0?0?1?1?0?1?0?1?0?0?0?0?1?1?0?0?1

11 0?0?0?0?0?1?1?1?0?0?1?0?0?0?1?0?1?0?0?1

12 0?0?0?0?0?1?1?1?0?1?0?1?1?0?1?1?0?0?0?1

13 0?0?0?0?1?0?0?0?1?0?0?1?1?0?1?0?1?1?1?1

14 0?0?0?0?1?0?0?0?1?0?1?1?0?0?1?1?1?1?0?1

15 0?0?0?0?1?0?0?0?1?0?1?1?1?1?0?0?1?1?0?1

16 0?0?0?0?1?0?0?0?1?0?1?1?1?1?0?1?0?0?1?1

17 0?0?0?0?1?0?0?1?1?0?1?1?1?1?0?0?0?1?0?1

18 0?0?0?0?1?0?0?1?1?0?1?1?1?1?0?1?0?1?1?1

19 0?0?0?0?1?0?1?0?0?1?1?0?1?1?1?0?1?1?1?1

20 0?0?0?0?1?0?1?1?0?0?1?1?1?1?0?1?0?0?0?1

21 0?0?0?0?1?0?1?1?1?0?1?1?1?1?0?0?1?1?0?1

22 0?0?0?0?1?0?1?1?1?1?0?0?1?1?0?1?0?0?0?1

Similarly, preferentially use the following all sequences in all sequences above-mentioned: 2,3,4,6,7,9,10,11,12,14,16,17,18,19,20 because they have low cross correlation.

Further, preferentially use following all binary sequences:

1 0?1?1?0?0?1?0?0?0?0?1?1?1?1?0?1?0?1?0?0

2 0?0?1?1?1?1?0?1?1?1?1?0?1?0?1?1?0?0?1?0

3 0?1?0?0?0?0?1?1?0?1?1?0?0?0?1?0?1?0?0?1

4 1?0?1?0?0?0?0?0?1?0?0?1?1?1?1?0?0?1?1?0

5 1?1?0?0?1?0?0?1?0?1?0?0?0?1?0?0?1?1?1?0

6 1?0?1?0?1?1?1?1?1?0?1?1?1?1?0?1?0?0?1?1

7 1?1?0?0?1?0?1?0?1?1?1?1?0?1?1?0?0?0?0?0

8 0?0?0?1?0?0?0?1?0?0?1?0?1?0?0?0?0?1?1?1

9 1?0?0?1?1?0?0?1?1?1?1?1?1?0?0?1?1?0?1?0

10 0?1?1?1?0?0?0?1?0?1?1?0?0?1?0?0?0?0?0?0,

Following all sequences have optimal cross correlation: 1,2,4,5,8,9,10.

Most typical sequence comprises all 4 facies-suites in all multiphase sequences.Their cross correlation is less a little more favourable from orthogonal sequence than all.In the method according to the invention, following all sequences are fit to as predetermined sequence:

1 1 1 1 1 -1 1 1 -1 j -j

2 1 1 1 1 -1 1 1 -1 -j -1

3 1 1 1 1 -1 j -1 1 1 -1

4 1 1 1 1 -1?-j -1 1 1 -1

5 1 1 1 j 1?-1 -j 1 -1 j

6 1 1 1 j -1 1 j 1 -1 j

7 1 1 1 j -1 1 -j -j 1 j

8 1 1 1 j -j 1 -j -1 j -j

9 1 1 1 j -j?-1 j 1 j -j

10 1 1 1 j -j?-1 j -1 -j j

11 1 1 1?-1 1?-1 -1 j -1 -1

12 1 1 1?-1 1?-1 -1 -j -1 -1

13 1 1 1?-1 j 1 j 1 j -1

14 1 1 1?-1 -1 j -1 -1 1 -1

15 1 1 1?-1 -1?-j -1 -1 1 -1

16 1 1 1?-1 -j 1 -j 1 -j -1

17 1 1 1?-j 1?-1 j 1 -1 -j

18 1 1 1?-j j 1 j -1 -j j

19 1 1 1?-j j?-1 -j 1 -j j

20 1 1 1?-j j?-1 -j -1 j -j

21 1 1 1 -j?-1 1 j?-1 1 -j

22 1 1 1 -j?-1 1?-j 1?-1 -j

23 1 1 j 1 1?-j?-1 1?-1 -j

24 1 1 j 1?-1 1 j?-1?-1 j

25 1 1 j 1?-j?-1?-1?-j j -j

26 1 1 j -1 1?-1 j 1 1 -j

27 1 1 j -1 1?-1 j?-1?-1 j

28 1 1 j -1 j 1 1 j?-j j

29 1 1 j -1 j?-1 j 1 1 -1

30 1 1 j -1?-1 j 1?-1 1 j

31 1 1 j -1?-1 j?-1 1?-1 j

32 1 1 j -1?-j?-1?-1 j?-j j

33 1 1 j -j j?-1?-1 j 1 -j

34 1 1?-1 1 1?-j?-1?-j?-1 -j

35 1 1?-j 1 j?-1?-1 j?-j j

36 1 1?-j j?-j 1 1?-j?-1 -j

Following all 7-, all sequences that 10-or 15-sequence set are mentioned in the above: 8,10,13,16,19,24,34 or 2,3,6,11,13,14,20,24,29,36 or 4,7,12,15,16,18,20,22,23,24,26,29,3l is particularly advantageous in 34,36.

All all 16-symbol sebolic addressings from orthogonal sequence are the same with all binary sequences approx good.In the method according to the invention, predetermined sequence 12 preferentially comprises following all orthogonal sequences:

1 1 1 1 1 1 j -1 -j 1 -1 1 -1 1?-j -1 j

2 1 1 1 1 1 j -j -1 1 -1 -1 1 1?-j j -1

3 1 1 1 1 1 -1 j -j 1 1 -1 -1 1?-1 j j

4 1 1 1 1 j 1 -1 -j?-1 1 1 -1?-1 1 -1 j

6 1 1 1 1 j 1 -j -1?-1 1 -1 1?-j 1 j -1

7 1 1 1 1 j -j 1 -1?-1 -1 1 1?-j j 1 -1

8 1 1 1 1?-1 1 j -j 1 1 -1 -1?-1 1 -j j

9 1 1 1 1?-1 j 1 -j 1 -1 1 -1?-1?-j 1 j

10 1 1 1 j 1 j -1 1 1 -1 1 -j 1?-j -1 -1

11 1 1 1 j 1 j?-j?-j 1?-1?-1 j 1?-j j?-j

12 1 1 1 j 1?-j j?-j 1?-1?-1 j 1 j?-j?-j

13 1 1 1 j j 1?-1 1?-1 1 1?-j?-j 1?-1?-1

14 1 1 1 j j 1?-j?-j?-1 1?-1 j?-j 1 j?-j

15 1 1 1 j j?-1 1 1?-1 1 1?-j?-j?-1 1?-1

18 1 1 1 j j?-1?-j j?-1 1?-1 j?-j?-1 j j

17 1 1 1 j j?-j 1?-j?-1?-1 1 j?-j j 1?-j

18 1 1 1 j j?-j?-1 j?-1?-1 1 j?-j j?-1 j

19 1 1 1 j?-1 1 j 1 1 1?-1?-j?-1 1?-j?-1

20 1 1 1 j?-1 j?-j j 1?-1?-1 j?-1?-j j j

21 1 1 1 j?-1?-j j j 1?-1?-1 j?-1 j?-j j

22 1 1 1 j?-j 1 j?-j?-1 1?-1 j j 1?-j?-j

23 1 1 1 j?-j j 1?-j?-1?-1 1 j j?-j 1?-j

24 1 1 1 j?-j j?-1 j?-1?-1 1 j j?-j?-1 j

25 1 1 1 j?-j?-1 j j?-1 1?-1 j j?-1?-j j

26 1 1 1 j?-1 j 1 1 1?-1 1?-j?-1?-j 1?-1

27 1 1 1?-1 1?-1 j j 1 1?-1 1 1?-1?-j?-j

28 1 1 1 j 1?-1 j 1 1 1?-1?-j 1?-1?-j?-1

29 1 1 1?-1 j?-1?-j?-1?-1 1?-1?-1?-j?-1 j?-1

30 1 1 1?-1?-1 1 j j 1 1?-1 1?-1 1?-j?-j

31 1 1 1?-1?-1 j 1 j 1?-1 1 1?-1?-j 1?-j

32 1 1 j 1 1 j 1?-1 1?-1?-j 1 1?-j?-1?-1

33 1 1 j 1 1 j?-j?-j 1?-1 j?-1 1?-j?-j j

34 1 1 j 1 1?-1 1 j 1 1?-j?-1 1?-1?-1?-j

35 1 1 j 1 1?-1?-1?-j 1 1?-j?-1 1?-1 1 j

36 1 1 j 1 1?-j?-1?-1 1?-1?-j 1 1 j 1?-1

37 1 1 j 1 1?-j?-j j 1?-1 j?-1 1 j?-j?-j

38 1 1 j 1 j 1?-j?-j?-1 1 j?-1?-j 1?-j j

39 1 1 j 1 j 1 1?-1?-1 1?-j 1?-j 1?-1?-1

40 1 1 j 1 j?-1 j?-j?-1 1 j?-1?-j?-1 j j

41 1 1 j 1?-1?-j j j 1?-1 j?-1?-1 j j?-j

42 1 1 j 1?-j 1?-j j?-1 1 j?-1 j 1?-j?-j

43 1 1 j 1?-j?-1 j j?-1 1 j?-1 j?-1 j?-j

44 1 1 j?-1 j?-1 j j?-1 1 j 1?-j?-1 j?-j

45 1 1 j?-1?-j 1?-j?-j?-1 1 j 1 j 1?-j j

46 1 1 j j 1?-j?-1?-j 1?-1?-j j 1 j 1?-j

47 1 1 j j?-1?-j?-1 j 1?-1?-j j?-1 j 1 j

48 1 1 j 1?-1 j j?-j 1?-1 j?-1?-1?-j j j

Optimal sequence comprises following all 7-in these sequences, 10-or 15-sequence set: 2,8,24,28,30,35,41 or 2,8,17,21,24,28,29,35,37,39 or 7,10,12,18,19,20,25,29,31,35,39,41,44,45,47.

The digital signal processing device of arranging according to all receiver according to the present invention for example, can have the microprocessor of all VLSI circuit or all ASIC to finish with one, and the method according to this invention can realize by enough software there.

According to arrangement of the present invention naturally also can by on mathematics at least approx the phase Sihe basically other all algorithms and all formula of equivalence realize.

Although we have described the present invention with reference to embodiment in the above according to appended all figure, but the present invention is not limited to these, and in a number of ways the present invention is made amendment in the creative thought category that can in appending claims, announce, this is very clearly.

Claims (23)

1. method that is used for determining the intensity of all co-channel signals, this method is used for a digital radio system that comprises several base stations and user terminal, all base stations and all user terminals carry out work as all transmitters (30-32) and all receivers (43) of all signals, these signals are all signals of wanting and/or all interference signals, in channel (33-35), propagate, and the predetermined sequence (12) that comprises an expression transmitter feature at least, when all signals are received, all signals are taken a sample, and this method is characterised in that:

From forming all subclass (21) of all predetermined sequences with all predetermined sequence (12) of all signal correction that receives,

Respectively each subclass is implemented channel estimating (22) according to all samplings of the signal of the cochannel of all receptions and all subclass of formation, and as a result who estimates form relevant with each a subclass channel estimating and

By the estimated signal (23) of channel estimating formation for subclass, the signal of this signal and reception is compared, by said comparison, form an intensity and estimate (24), the intensity of at least one signal of subclass has been described in this intensity estimation, and is used to select at least one that the subclass of maximum signal is arranged this signal.

2. method that is used for determining the intensity of all co-channel signals, this method is used for a digital radio system that comprises several base stations and user terminal, all base stations and all user terminals carry out work as all transmitters (30-32) and all receivers (43) of all signals, these signals are all signals of wanting and/or all interference signals, in channel (33-35), propagate, and the predetermined sequence (12) that comprises an expression transmitter feature at least, all receivers comprise all diversity branches, and this method is characterised in that:

From forming all subclass (21) of all predetermined sequences with all predetermined sequence (12) of all signal correction that receives,

Respectively each subclass is implemented channel estimating (22) according to all samplings of the signal of the cochannel of all receptions and all subclass of formation, and as a result who estimates form relevant with each a subclass channel estimating and

By the estimated signal (23) of channel estimating formation for subclass, the signal of this estimated signal and reception is compared, by said comparison, form an intensity and estimate (24), the intensity of at least one signal of subclass has been described in this intensity estimation, and when selecting at least one subclass that maximum signal is arranged, use this intensity estimate and

From all channel estimation results, between all diversity branches, form a correlated results, this result is used for, for example, reduce the amount of disturbing.

3. method according to claim 2, it only is characterised in that basically that all channel estimating by interference signal and/or the signal wanted form correlated results.

4. method according to claim 1, it is characterised in that when channel estimating comprises all taps, so determine the intensity estimation of all subclass signals, make by all channel estimating taps forms one with, so that define the position of all subclass of all peak signals, and said all intensity is estimated to be used for, for example, reduce the amount of disturbing.

5. method according to claim 1 or 2, it is characterised in that each subclass of receiver (43) comprises an identical predetermined sequence (12) at least, and this sequence preferentially is the predetermined sequence (12) of the signal of the transmitter (30-32) in the coverage area of the reality at receiver (43) place.

6. method according to claim 1 or 2, it is characterised in that receiver (43) enforcement channel estimating, make each subclass only be included in the predetermined sequence (12) of signal of the transmitter (30-32) in the coverage area of reality at receiver (43) place and the predetermined sequence (12) of other signal basically.

7. method according to claim 1 or 2, it is characterised in that and will regards noise as in all sequences of subclass outside.

8. method according to claim 1 or 2, it is characterised in that by the formation of the maximum likelihood type of utilizing a channel estimating implements channel estimating.

9. method according to claim 1 or 2, it is characterised in that when radio system is a gsm system predetermined sequence (12) is that of gsm system adjusts sequence.

10. method according to claim 1 or 2, it is characterised in that predetermined sequence (12) comprises following all binary sequences

1 0?0?0?0?0?0?1?0?1?1?0?0?1?1?1?0?1?0?1?1

2 0?0?0?0?0?0?1?1?0?1?0?1?1?1?0?0?1?1?0?1

3 0?0?0?0?0?1?0?0?0?1?1?0?1?1?0?1?0?1?1?1

4 0?0?0?0?0?1?0?0?1?0?1?0?0?0?1?0?0?1?1?1

5 0?0?0?0?0?1?0?0?1?0?1?1?1?0?0?1?1?1?0?1

6 0?0?0?0?0?1?0?0?1?1?0?0?0?0?1?0?1?0?1?1

7 0?0?0?0?0?1?0?1?1?0?1?0?0?0?1?0?0?0?1?1

8 0?0?0?0?0?1?0?1?1?1?0?0?1?1?1?0?1?0?0?1

9 0?0?0?0?0?1?1?0?0?0?1?0?0?0?1?0?1?1?0?1

10 0?0?0?0?0?1?1?0?1?0?1?0?0?0?0?1?1?0?0?1

11 0?0?0?0?0?1?1?1?0?0?1?0?0?0?1?0?1?0?0?1

12 0?0?0?0?0?1?1?1?0?1?0?1?1?0?1?1?0?0?0?1

13 0?0?0?0?1?0?0?0?1?0?0?1?1?0?1?0?1?1?1?1

14 0?0?0?0?1?0?0?0?1?0?1?1?0?0?1?1?1?1?0?1

15 0?0?0?0?1?0?0?0?1?0?1?1?1?1?0?0?1?1?0?1

16 0?0?0?0?1?0?0?0?1?0?1?1?1?1?0?1?0?0?1?1

17 0?0?0?0?1?0?0?1?1?0?1?1?1?1?0?0?0?1?0?1

18 0?0?0?0?1?0?0?1?1?0?1?1?1?1?0?1?0?1?1?1

19 0?0?0?0?1?0?1?0?0?1?1?0?1?1?1?0?1?1?1?1

20 0?0?0?0?1?0?1?1?0?0?1?1?1?1?0?1?0?0?0?1

21 0?0?0?0?1?0?1?1?1?0?1?1?1?1?0?0?1?1?0?1

22 0?0?0?0?1?0?1?1?1?1?0?0?1?1?0?1?0?0?0?1

Override ground uses following all sequences: 2,3,4,6,7,9,10,11,12,14,16,17,18,19,20.

11. the method according to claim 1 or 2, it is characterised in that predetermined sequence (12) comprises following all binary sequences

1 0?1?1?0?0?1?0?0?0?0?1?1?1?1?0?1?0?1?0?0

2 0?0?1?1?1?1?0?1?1?1?1?0?1?0?1?1?0?0?1?0

3 0?1?0?0?0?0?1?1?0?1?1?0?0?0?1?0?1?0?0?1

4 1?0?1?0?0?0?0?0?1?0?0?1?1?1?1?0?0?1?1?0

5 1?1?0?0?1?0?0?1?0?1?0?0?0?1?0?0?1?1?1?0

6 1?0?1?0?1?1?1?1?1?0?1?1?1?1?0?1?0?0?1?1

7 1?1?0?0?1?0?1?0?1?1?1?1?0?1?1?0?0?0?0?0

8 0?0?0?1?0?0?0?1?0?0?1?0?1?0?0?0?0?1?1?1

9 1?0?0?1?1?0?0?1?1?1?1?1?1?0?0?1?1?0?1?0

10 0?1?1?1?0?0?0?1?0?1?1?0?0?1?0?0?0?0?0?0

Override ground uses following all sequences: 1,2,4,5,8,9,10.

12. the method according to claim 1 or 2, it is characterised in that predetermined sequence (12) comprises following all prime sequences

1 0?0?0?1?1?0?1?1?1?1?0?1?1?0?1?0?0?0?1?1?1?1?1?1?0?1?0?0?0?0?0

2 1?1?0?0?0?1?0?0?1?1?1?1?1?1?0?0?0?0?1?0?1?0?0?1?1?1?1?0?0?0?1

3 0?1?1?1?1?0?1?0?1?0?1?1?0?0?0?0?0?0?0?0?0?1?0?0?1?0?1?0?0?1?0

4 0?0?0?0?0?1?1?0?0?0?1?0?1?0?0?0?0?1?0?1?1?1?1?0?0?0?1?0?1?0?1

5 1?1?1?1?1?1?1?1?0?0?0?1?1?0?0?0?1?1?1?0?1?0?1?1?0?0?1?1?0?1?1

6 0?0?0?0?1?1?0?1?0?1?1?1?1?0?0?1?1?0?0?0?0?0?0?1?0?0?0?0?1?1?0

7 1?1?1?0?1?0?0?1?1?0?1?1?1?0?1?1?0?1?0?1?0?1?0?1?0?1?1?1?1?0?1

8 0?0?1?0?0?0?0?0?0?0?1?1?1?1?1?0?1?1?1?1?1?1?0?1?1?0?0?1?0?1?0

9 1?0?1?1?0?0?1?1?0?0?1?1?0?1?0?1?1?0?1?0?1?1?0?0?0?1?0?0?1?0?1

10 1?0?0?1?0?1?0?1?0?0?1?0?0?0?1?1?0?0?0?0?1?1?1?1?1?1?1?1?0?1?0

11 1?1?0?1?1?0?0?1?0?0?0?0?1?1?1?0?0?1?0?0?1?0?0?0?1?0?0?0?1?0?0

12 0?1?0?0?0?0?0?1?0?1?0?1?0?1?0?0?1?1?0?0?0?1?1?0?0?1?1?1?0?0?0

13 0?1?1?1?0?0?0?1?1?1?1?0?0?0?0?1?1?1?0?1?1?0?1?1?1?0?0?0?0?0?1

14 0?0?0?1?0?0?0?0?1?0?0?0?1?0?1?1?1?1?1?0?0?0?0?0?0?1?1?0?0?1?1

15 1?1?0?1?0?0?1?0?0?1?0?1?1?1?1?1?1?0?0?1?0?1?1?1?1?0?1?0?1?1?1

16 0?1?0?1?0?1?1?1?1?1?1?1?0?1?1?1?0?1?1?1?1?0?0?0?0?0?1?1?1?1?0

17 0?1?0?1?1?1?0?0?1?0?1?0?0?1?1?0?1?0?1?0?0?1?1?1?0?0?0?1?1?0?1

18 0?1?0?0?1?0?1?0?0?0?0?0?0?1?0?1?0?0?0?1?1?0?0?1?0?1?0?1?0?1?1

19 0?1?1?0?0?1?1?1?0?1?0?0?0?0?1?0?0?1?1?0?0?1?0?1?1?1?0?0?1?1?1

20 0?0?1?1?1?1?0?1?1?1?0?0?1?1?0?0?1?0?0?1?1?1?0?0?1?1?1?1?1?1?1

21 1?0?0?0?1?0?0?0?1?1?0?1?0?0?0?1?0?1?1?0?1?1?1?0?1?0?0?1?1?1?1

22 1?1?1?0?0?0?1?0?1?1?1?0?1?0?1?0?1?0?0?0?1?0?1?0?0?1?0?1?1?1?0

23 0?0?1?1?0?1?1?0?1?0?0?1?1?1?0?1?0?1?0?0?0?0?1?1?1?1?0?1?1?0?0

24 1?0?0?1?1?1?1?0?0?1?1?1?0?0?1?0?1?1?0?1?0?0?0?0?1?1?0?1?0?0?1

25 1?1?0?0?1?1?1?1?1?0?1?0?1?1?0?1?1?1?1?1?0?1?1?0?1?1?0?0?0?1?0

26 0?1?1?0?1?1?0?0?0?0?0?1?0?0?1?1?1?0?1?1?1?0?1?0?1?1?1?0?1?0?0

27 0?0?1?0?1?0?1?1?0?1?1?0?1?1?1?1?0?0?1?0?0?0?1?0?1?0?1?1?0?0?1

28 1?0?1?0?0?1?0?1?1?0?0?1?0?1?1?0?0?0?0?1?0?0?1?0?0?0?0?0?0?1?1

29 1?0?1?1?1?0?0?0?0?1?1?0?0?1?0?0?0?1?1?1?0?0?1?1?0?1?1?0?1?1?0

30 1?0?0?0?0?0?1?1?1?0?0?0?0?0?0?0?1?0?1?1?0?0?0?1?1?0?1?1?1?0?0

31 1?1?1?1?0?1?0?0?0?1?0?0?1?0?0?1?0?0?1?1?0?1?0?0?0?0?0?1?0?0?0

32 1?0?1?0?1?1?1?0?1?1?0?0?0?1?1?1?1?1?0?0?1?1?0?1?0?0?1?0?0?0?0

33 1?0?1?1?0?1?0?1?0?0?0?1?1?1?0?1?1?1?1?1?0?0?1?0?0?1?1?0?0?0?0

Override ground uses following all 7-, 10-or 15-sequence set: 21,23,25,26,30,31,32 or 5,16,18,19,21,23,26,30,31,32 or 2,3,4,5,8,10,16,21,23,25,26,28,29,30,31.

13. the method according to claim 1 or 2, it is characterised in that predetermined sequence (12) comprises following all 4 phase sequences:

1 1 1 1 1?-1 1 1?-1 j?-1

2 1 1 1 1?-1 1 1?-1?-j?-1

3 1 1 1 1?-1 j?-1 1 1?-1

4 1 1 1 1?-1?-j?-1 1 1?-1

5 1 1 1 j 1?-1?-j 1?-1 j

6 1 1 1 j?-1 1 j 1?-1 j

7 1 1 1 j?-1 1?-j?-1 1 j

8 1 1 1 j?-j 1?-j?-1 j?-j

9 1 1 1 j?-j?-1 j 1 j?-j

10 1 1 1 j?-j?-1 j?-1?-j j

11 1 1 1?-1 1?-1?-1 j?-1?-1

12 1 1 1?-1 1?-1?-1?-j?-1?-1

13 1 1 1?-1 j 1 j 1 j?-1

14 1 1 1?-1?-1 j?-1?-1 1?-1

15 1 1 1?-1?-1?-j?-1?-1 1?-1

16 1 1 1?-1?-j 1?-j 1?-j?-1

17 1 1 1?-j 1?-1 j 1?-1?-j

18 1 1 1?-j j 1 j?-1?-j j

19 1 1 1?-j j?-1?-j 1?-j j

20 1 1 1?-j j?-1?-j?-1 j?-j

21 1 1 1?-j?-1 1 j?-1 1?-j

22 1 1 1?-j?-1 1?-j 1?-1?-j

23 1 1 j 1 1?-j?-1 1?-1?-j

24 1 1 j 1?-1 1 j?-1?-1 j

25 1 1 j 1?-j?-1?-1?-j j?-j

26 1 1 j?-1 1?-1 j 1 1?-j

27 1 1 j?-1 1?-1 j?-1?-1 j

28 1 1 j?-1 j 1 1 j?-j j

29 1 1 j?-1 j?-1 j 1 1?-1

30 1 1 j?-1?-1 j 1?-1 1 j

31 1 1 j?-1?-1 j?-1 1?-1 j

32 1 1 j?-1?-j?-1?-1 j?-j j

33 1 1 j?-j j?-1?-1 j 1?-j

34 1 1?-1 1 1?-j?-1?-j?-1?-j

35 1 1?-j 1 j?-1?-1 j?-j j

36 1 1?-j j?-j 1 1?-j?-1?-j

Override ground uses following all 7-, 10-or 15-sequence set: 8,10,13,16,19,24,34 or 2,3,6,11,13,14,20,24,29,36 or 4,7,12,15,16,18,20,22,23,24,26,29,31,34,36.

14. the method according to claim 1 or 2, it is characterised in that predetermined sequence (12) comprises following all orthogonal sequences:

1 1 1 1 1 1 j?-1 -j 1?-1 1?-1 1?-j?-1 j

2 1 1 1 1 1 j?-j -1 1?-1?-1 1 1?-j j?-1

3 1 1 1 1 1?-1 j -j 1 1?-1?-1 1?-1?-j j

4 1 1 1 1 j 1?-1 -j?-1 1 1?-1?-j 1?-1 j

5 1 1 1 1 j?-1 1?-j?-1 1 1?-1?-j?-1 1 j

6 1 1 1 1 j 1?-j?-1?-1 1?-1 1?-j 1 j?-1

7 1 1 1 1 j?-j 1?-1?-1?-1 1 1?-j j 1?-1

8 1 1 1 1?-1 1 j?-j 1 1?-1?-1?-1 1?-j j

9 1 1 1 1?-1 j 1?-j 1?-1 1?-1?-1?-j 1 j

10 1 1 1 j 1 j?-1 1 1?-1 1?-j 1?-j?-1?-1

11 1 1 1 j 1 j?-j?-j 1?-1?-1 j 1?-j j?-j

12 1 1 1 j 1?-j j?-j 1?-1?-1 j 1 j?-j?-j

13 1 1 1 j j 1?-1 1?-1 1 1?-j?-j 1?-1?-1

14 1 1 1 j j 1?-j?-j?-1 1?-1 j?-j 1 j?-j

15 1 1 1 j j?-1 1 1?-1?-1 1?-j?-j?-1 1?-1

16 1 1 1 j j?-1?-j j?-1 1?-1 j?-j?-1 j j

17 1 1 1 j j?-j 1?-j?-1?-1 1 j?-j j 1?-j

18 1 1 1 j j?-j?-1 j?-1?-1 1 j?-j j?-1 j

19 1 1 1 j?-1 1 j 1 1 1?-1?-j?-1 1?-j?-1

20 1 1 1 j?-1 j?-j j 1?-1?-1 j?-1?-j j j

21 1 1 1 j?-1?-j j j 1?-1?-1 j?-1 j?-j j

22 1 1 1 j?-j 1 j?-j?-1 1?-1 j j 1?-j?-j

23 1 1 1 j?-j j 1?-j?-1?-1 1 j j?-j 1?-j

24 1 1 1 j?-j j?-1 j?-1?-1 1 j j?-j?-1 j

25 1 1 1 j?-j?-1 j j?-1 1?-1 j j?-1?-j j

26 1 1 1 j?-1 j 1 1 1?-1 1?-j?-1?-j 1?-1

27 1 1 1?-1 1?-1 j j 1 1?-1 1 1?-1?-j?-j

28 1 1 1 j 1?-1 j 1 1 1?-1?-j 1?-1?-j?-1

29 1 1 1?-1 j?-1?-j?-1?-1 1?-1?-1?-j?-1 j?-1

30 1 1 1?-1?-1 1 j j 1 1?-1 1?-1 1?-j?-j

31 1 1 1?-1?-1 j 1 j 1?-1 1 1?-1?-j 1?-j

32 1 1 j 1 1 j 1?-1 1?-1?-j 1 1?-j?-1?-1

33 1 1 j 1 1 j?-j?-j 1?-1 j?-1 1?-j?-j j

34 1 1 j 1 1?-1 1 j 1 1?-j?-1 1?-1?-1?-j

35 1 1 j 1 1?-1?-1?-j 1 1?-j?-1 1?-1 1 j

36 1 1 j 1 1?-j?-1?-1 1?-1?-j 1 1 j 1?-1

37 1 1 j 1 1?-j?-j j 1?-1 j?-1 1 j?-j?-j

38 1 1 j 1 j 1?-j?-j?-1 1 j?-1?-j 1?-j j

39 1 1 j 1 j 1 1?-1?-1 1?-j 1?-j 1?-1?-1

40 1 1 j 1 j?-1 j?-j?-1 1 j?-1?-j?-1 j j

41 1 1 j 1?-1?-j j j 1?-1 j?-1?-1 j j?-j

42 1 1 j 1?-j 1?-j j?-1 1 j?-1 j 1?-j?-j

43 1 1 j 1?-j?-1 j j?-1 1 j?-1 j?-1 j?-j

44 1 1 j?-1 j?-1 j j?-1 1 j 1?-j?-1 j?-j

45 1 1 j?-1?-j 1?-j?-j?-1 1 j 1 j 1?-j j

46 1 1 j j 1?-j?-1?-j 1?-1?-j j 1 j 1?-j

47 1 1 j j?-1?-j?-1 j 1?-1?-j j?-1 j 1 j

48 1 1 j 1?-1 j j?-j 1?-1 j?-1?-1?-j j j

Override ground uses following all 7-, 10-or 15-sequence set: 2,8,24,28,30,35,41 or 2,8,17,21,24,28,29,35,37,39 or 7,10,12,18,19,20,25,29,31,35,39,41,44,45,47.

15. an arrangement is used for a receiver that comprises the digital radio system of several base stations and user terminal, all base stations and all user terminals carry out work as all transmitters (30-32) and all receivers (43) of all signals, these signals are propagated by channel (33-35), be all signals of wanting and/or all interference signals, and comprise a predetermined sequence (12) at least, arrange all receivers (43) so that all signals are taken a sample, this receiver is characterised in that:

Receiver comprises timing unit (42) and apparatus for grouping (41), be used for from all predetermined sequence (12) all signal correction and that be stored in timing unit (43) that receives form all predetermined sequences all subclass and

Receiver comprises channel estimating apparatus (40), be used for each subclass is implemented channel estimating respectively, by the sampling of all received signals and all subclass of forming, arrange to estimate to make its generation and form a channel estimating relevant with each subclass and

Arrange channel estimating apparatus (40),

So that by channel estimating and predetermined sequence form an estimated signal and

So that compare with the signal that receives with for the estimated signal of subclass, arrange channel estimating apparatus (40), so that by said comparison, form all intensity estimations for all subclass signals.

16. receiver according to claim 15, it is characterised in that when receiver comprises relevant apparatus (52) and all diversity branches (55-56), and their all signal combination are got up, and arranges channel estimating apparatus (40), so that to each diversity branch form respectively a channel estimating and

Arrange relevant apparatus (52),,, for example, the amount of interference is reduced so that utilize this result so that, arrange combination and checkout gear (53) from the correlated results between all diversity branch of all channel estimating formation.

17. the receiver according to claim 16, it is characterised in that arranging relevant apparatus (52) so that form only is the signal wanted and/or a correlated results of all interference signals basically.

18. the receiver according to claim 15, it is characterised in that when channel estimating comprises all taps, arranges channel estimating apparatus (40), so as to determine the intensity of all subclass signals estimate as one of all channel estimating taps and.

19. receiver according to claim 15, it is characterised in that each subclass of receiver (43) comprises the predetermined sequence (12) that at least one is common, and this sequence override ground is the predetermined sequence of the signal of the transmitter (30-32) in the coverage area of the reality at receiver (43) place.

20. receiver according to claim 15, it is characterised in that arranges channel estimating apparatus (40), so that so implement channel estimating, make each subclass only be included in other the predetermined sequence (12) of signal of the predetermined sequence of signal of the transmitter (30-32) in the coverage area of reality at receiver (43) place and basically.

21. the receiver according to claim 15, it is characterised in that arranges apparatus for grouping (41), so that will become noise in all sequence transformations of subclass outside.

22. the receiver according to claim 15, it is characterised in that arranges channel estimating apparatus (40), so that channel estimating is implemented in the formation of the maximum likelihood type by utilizing a channel estimating.

23. the receiver according to claim 15, it is characterised in that when radio system is a gsm system predetermined sequence (12) is that of gsm system adjusts sequence.

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