CN103037396A - Method, device and base station for detecting signals of long term evolution (LTE) uplink control channel - Google Patents
Method, device and base station for detecting signals of long term evolution (LTE) uplink control channel Download PDFInfo
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- CN103037396A CN103037396A CN2011102958736A CN201110295873A CN103037396A CN 103037396 A CN103037396 A CN 103037396A CN 2011102958736 A CN2011102958736 A CN 2011102958736A CN 201110295873 A CN201110295873 A CN 201110295873A CN 103037396 A CN103037396 A CN 103037396A
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Abstract
The invention discloses a method, a device and a base station for detecting signals of an LTE uplink control channel. The method comprises that the base station calculates a judgment variable according to noise power estimated values of at least one antenna and a channel response power estimated value, and the judgment variable contains a first judgment variable which is obtained through a difference value between the channel response power estimated value which is subjected to maximal-ratio combining and noise power estimated values which are corrected by correction factors and are subjected to maximal-ratio combining; and the judgment variable is compared with a set value, and state information of transmission in the channel can be determined according to the comparison result. By the aid of the method, the device and the base station, interference of multiplexed signals can be effectively eliminated on the condition of multi-user multiplexing, the estimation precision can be improved, and simultaneously, the method, the device and the base station are applicable to conditions of single user and multi-user multiplexing of the LTE uplink control channel.
Description
Technical field
The present invention relates to 3GPP LTE mobile communication technology field, relate in particular to detection method, device and the base station of signal in the LTE ascending control channel.
Background technology
LTE (Long Term Evolution, Long Term Evolution) is the research project of the relevant next generation communication technology that starts of 3GPP, is the trend for the mobile that adapts to global radio communication, broadband and IPization.The target of LTE is capacity and the coverage that obtains higher data rate, lower Time Delay of Systems, the performance of improving Cell Edge User and raising system.For this reason, LTE has adopted OFDM and MIMO as the sole criterion of its wireless network evolution.
In LTE, the user may utilize PUCCH (Physical Uplink Control Channel) to transmit these information:, if need adjustresources, then use format 1 and send the scheduling situation on the cycle in dispatch request, if the user does not have demand, then can not send information to the base station; On feedback cycle, UE need to feed back PDCCH (Physical Downlink Control Channel) and PDSCH (Physical Downlink Shared Channel), as send ACK or the NACK of 1 bit with format 1a, perhaps send ACK or the NACK of 2 bits with format 1b, if do not detect PDCCH, then the user can not send information to the base station, discontinuous transmission DTX namely occurs.
Can find out that detect if the base station can not be made accurately the state information in the ascending control channel, the overall performance of system will reduce greatly so.
At present, existing detection method mainly contains time domain detection method and frequency domain detection method.
In the time domain detection method, the domain channel response estimated value is transformed into time domain by discrete Fourier transform, then calculates signal to noise ratio by the method in choosing footpath state information is judged.The defective that the method exists is can cause the deviation of snr computation in the phenomenon of " spectrum leakage " that occurs and the choosing footpath process to the mistake of disturbing the footpath to judge in the time-frequency domain transfer process, thereby impact to detect performance.
In the frequency domain detection algorithm, mainly be to utilize frequency-region signal to estimate RSRP (Reference Signal Received Power) or signal to noise ratio, then by the size that compares estimated value and preset value state information judged.The defective that the method exists is in the existing frequency domain detection algorithm, to have signal power and noise power estimation precision not high (as being subject to multiuser multiplexing signal interference etc.) thereby the problem of impact detection performance.
Simultaneously, above-mentioned two kinds of existing detection method measuring abilities are incomplete, namely other state informations of PUCCH format 1/1a/1b do not detected, thereby limited the performance of entire system performance.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides detection method, device and the base station of signal in the LTE ascending control channel, can realize judging exactly the state information of transmitting in the channel.
The invention provides the detection method of signal in a kind of LTE ascending control channel, comprising:
The base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables, described judgment variables comprises by the channel response power estimated value after the high specific merging
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
The first judgment variables of obtaining of difference;
More described judgment variables with set numerical value, determine the state information of transmitting in the channel according to result relatively.
Correspondingly, the present invention also provides the checkout gear of signal in a kind of LTE ascending control channel, comprising:
The variable computing unit is used in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables;
The status determining unit that links to each other with described variable computing unit is used for more described judgment variables and sets numerical value, determines the state information of transmitting in the channel according to result relatively.
Correspondingly, the present invention also provides a kind of LTE base station, comprising: the checkout gear of signal in the foregoing LTE ascending control channel.
Implement the present invention, have following beneficial effect:
Frequency domain detection method provided by the invention, the characteristics of the orthogonal code that adopts according to data-signal and pilot signal, take corresponding channel response power and noise power calculation method for channel response estimated value in data-signal and the pilot signal, the method can be eliminated the interference of multiplexed signals effectively for the situation of multiuser multiplexing, improve estimated accuracy, be applicable to simultaneously the situation of the alone family of LTE ascending control channel and multiuser multiplexing.Utilize channel response power on different antennae and the time slot and estimated value and the channel response estimated value of noise power, in conjunction with single antenna or multi-antenna receive diversity mode, produce corresponding judgment variables for different state informations.Utilize two Frequency Hopping Processing Gains on the time slot, design function admirable, multiple functional judging process, can detect all state informations among the PUCCH format 1/1a/1b, improve the performance that detects.
Description of drawings
Fig. 1 is the flow chart of the detection method of signal in the LTE ascending control channel of the present invention;
Fig. 2 is the first embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention;
Fig. 3 is the second embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention;
Fig. 4 is the 3rd embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention;
Fig. 5 is the schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention;
Fig. 6 is the first embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention;
Fig. 7 is the second embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention;
Fig. 8 is the 3rd embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention;
Fig. 9 is the simulation result of checkout gear in the ETU70 channel model of signal in the LTE ascending control channel of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the flow chart of the detection method of signal in the LTE ascending control channel of the present invention, comprising:
S101: the base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables.
Described judgment variables comprises by the channel response power estimated value after the high specific merging
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
The first judgment variables of obtaining of difference.
S102: more described judgment variables with set numerical value, determine the state information of transmitting in the channel according to result relatively.
Need to prove, shown in the noise power estimation value
With described channel response power estimated value
All be general in the industry technical term, in the middle of prior art, can acquire by other account forms.Key point of the present invention is that the method for designing the interference that can effectively eliminate the multiuser multiplexing signal is used for calculating noise power estimated value
With described channel response power estimated value
(so that algorithm can be applicable to the occasion of alone family or multiuser multiplexing), and in conjunction with the judgment variables that calculates of single antenna or many antennas.Again described judgment variables is judged, obtained the state information of transmitting in the channel.Described information relates in particular to the LTE ascending control channel.The present invention can judge the state information of transmitting in the described channel exactly according to judgment condition, and described judgment condition comprises described judgment variables and the magnitude relationship of setting numerical value.
Fig. 2 is the first embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention, Fig. 1 is overall technical architecture of the present invention, compared to Figure 1, Fig. 2 judges whether the state information of transmitting in the channel is the implementation flow process of discontinuous transmission DTX.
S201: the base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables.Described judgment variables comprises by the channel response power estimated value after the high specific merging
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
The first judgment variables of obtaining of difference.
Preferably, described the first judgment variables
, wherein, n
sRepresent n
sIndividual time slot,
Expression the
The root reception antenna, β is default correction factor, N
RxTotal quantity for reception antenna.
Described noise power estimation value
, described channel response power estimated value
All can adopt the account form of prior art.Certainly, in order to guarantee accuracy of the invention process, the follow-up account form that further provides above-mentioned two parameters of the distinctive calculating of the present invention.The present invention does not get rid of, by existing or other can obtain accurately above-mentioned two parameters, the situation of then judging by the first judgment variables of the present invention.Any making based on above-mentioned thought is equal to replacement, improvement, all should be included within protection scope of the present invention.
The span of described default correction factor β comprises 0.1～0.3.
S202: when the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX.
Need to prove, when described the first judgment variables according to
When calculating, the predetermined value of comparing with it is zero.Certainly, the account form when the first variable is
The time, described predetermined value is 1, so, not get rid of described predetermined value and have other number, all similarly adopt being equal to replacement and all should being included within protection scope of the present invention of inventive concept.
Fig. 3 is the second embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention, compare with Fig. 2, the embodiment flow chart of Fig. 3 further, can also judge that whether the state information of transmitting in the channel is as dispatch request SR is arranged except can judging discontinuous transmission DTX state.
S301: the base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables.
S302: when the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX.
S303: when the first judgment variables that has a time slot greater than setting numerical value, and the precognition user sends PUCCH format 1, the state information of then determining to transmit in the channel is for there being dispatch request SR.
Determine the state information transmitted in the channel according to the judged result of judgment variables and precognition judgment condition.Described precognition judgment condition comprises that the user sends PUCCH format 1, and the user sends PUCCH format 1a, and the user sends PUCCH format 1b.Three kinds of forms that described precognition judgment condition is enumerated are three kinds of common in existing LTE ascending control channel data formats, utilize above-mentioned the first judgment variables and described PUCCH format 1 form, whether just can judge exactly the state information transmitted in the channel for dispatch request SR is arranged.Simultaneously, present embodiment is not got rid of the state information that determines discontinuous transmission DTX.What need supplementary notes is the noise power estimation value that the first judgment variables in the present embodiment adopts
With channel response power estimated value
Two parameters, the account form that can adopt at the same time or separately the present invention to introduce below also can adopt existing or other account form at the same time or separately.Described other account form refers to the development along with technology, and the account form of above-mentioned two parameters of various calculating of the replaceable prior art that occurs.
The below introduces the calculating noise power estimated value that the present invention proposes
With channel response power estimated value
The mode of two parameters.
At first, need to introduce first in the middle of the prior art mode of calculating channel response estimated value.In the middle of the prior art, can utilize data symbol and orthogonal intersection and the permanent envelope zero autocorrelation sequence calculating channel response estimated value corresponding with local targeted customer of the signal in the frequency pilot sign of ascending control channel.
For ascending control channel, because system allows the multiplexing identical running time-frequency resource of a plurality of users, it receives signal and can be expressed as:
Five call numbers wherein are corresponding time slot n respectively
s, reception antenna j, subcarrier k, SCFDM symbol
Index n with the user
User, n be appointed as in targeted customer's index
User=0, symbol wherein
,
,
With
Minute
Biao Shi not receive signal, channel response, transmitted signal and noise, transmitted signal
Be expressed as
In the formula
,
With
Represent respectively symbol, permanent envelope zero autocorrelation sequence and the orthogonal intersection of control information after modulation.
Like this, targeted customer's channel estimation value is
Then, introduce noise power estimation value of the present invention
Account form, comprising:
Utilize the noise power of the calculated signals data symbol in the data symbol channel.
Particularly, with first with the 3rd, second with the 4th data symbol in channel response estimated value on the corresponding sub-carrier positions subtract each other respectively:
In the middle of the prior art standard, the SCFDM symbol always has seven in the time slot, namely is numbered 1,2 ..., 7.Wherein, four symbols of numbering 1,2,6 and 7 are data symbol; Numbering 3,4 and 5 is frequency pilot sign.Described first data symbol is the signal on 1 of the symbol; Described second data symbol is the signal on the symbol 2; Described the 3rd data symbol is the signal on the symbol 6; Described the 4th data symbol is the signal on the symbol 7.
Corresponding subcarrier addition:
By carrying out the calculating of the corresponding estimated value of channel with upper type, when its role is to effectively eliminate for the multiuser multiplexing situation, the interference that multiplexed signals produces.
Get its mould square mean value, again divided by 4, obtain the noise power estimation value on the data symbol:
。
Utilize the noise power of the calculated signals frequency pilot sign in the frequency pilot sign channel.
Respectively first is subtracted each other with the 7th the channel response estimated value to the 12 sub-carrier positions to the 6th:
Sue for peace at intersymbol:
Get its mould square mean value, again divided by 6, obtain the noise power estimation value on the frequency pilot sign:
According to the noise power of described data symbol and the noise power calculation mean value of described frequency pilot sign, obtain described noise power estimation value
:
At last, described channel response power estimated value
Account form, comprising:
Calculated data meets the mean value of default several channel estimation values of channel, obtains data mean value
The span of described default number comprises 1 to 48, and preferably, described default number is 48.Specific formula for calculation is:
Calculate the mean value of default several channel estimation values of frequency pilot sign channel, obtain the pilot average value
The span of described default number comprises 1 to 36, and preferably, described default number is 36.Specific formula for calculation is:
。
According to described data mean value and described pilot average value, calculate the channel response power estimated value on a time slot, the reception antenna
, the computing formula of described channel response power estimated value is,
, n wherein
sRepresent n
sIndividual time slot, j represents the j reception antenna.
So, described the first judgment variables
Computing formula be:
Need to prove, when described the first judgment variables according to
When calculating, the predetermined value of comparing with it is zero.When the account form of the first variable is
The time, described predetermined value is 0.5, so, not get rid of described predetermined value and have other number, all similarly adopt being equal to replacement and all should being included within protection scope of the present invention of inventive concept.
Fig. 4 is the 3rd embodiment flow chart of the detection method of signal in the LTE ascending control channel of the present invention, compare with Fig. 3, whether the embodiment flow chart of Fig. 4 is except judging discontinuous transmission DTX, have the dispatch request SR two states, can also judge the state information transmitted in the channel as negative acknowledgment NACK or just confirming the ACK state.
S401: the base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables.
Described judgment variables comprises by the channel response power estimated value after the high specific merging
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
The first judgment variables of obtaining of difference; Described judgment variables also comprises the second judgment variables by the real part acquisition of high specific combined signal.
Preferably, described the second judgment variables according to
When calculating, the predetermined value of comparing with it is zero.Certainly, when bivariate account form be
The time, described predetermined value is 0.5, so, not get rid of described predetermined value and have other number, all similarly adopt being equal to replacement and all should being included within protection scope of the present invention of inventive concept.
S402: when the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX.
S403: when the first judgment variables that has a time slot greater than setting numerical value, and the precognition user sends PUCCH format 1, the state information of then determining to transmit in the channel is for there being dispatch request SR.
S404: when the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, and the precognition user sends PUCCH format 1a, determines that then the state information of transmitting in the channel is negative acknowledgment NACK.
S405: when the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the precognition user sends PUCCH format 1a, judges that then the state information of transmitting in the channel is as just confirming ACK.
Need to prove that the account form of above-mentioned the first judgment variables can comprise the noise power estimation value of obtaining by existing account form
Or channel response power estimated value
Parameter, the account form that also can adopt the invention described above to propose.Yet key point of the present invention comprises the account form of each judgment variables.By described the first judgment variables, described the second judgment variables and precognition judgment condition, the present invention can also judge further whether the state information of transmitting in the channel is negative acknowledgment NACK or is just confirming the ACK state.
Described judgment variables also comprises the 3rd judgment variables DV by the imaginary part acquisition of high specific combined signal
3, the real part by the high specific combined signal and the difference acquisition of imaginary part the 4th judgment variables DV
4
When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (NACK, NACK);
When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (ACK, ACK);
When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (ACK, NACK);
When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (NACK, ACK).
Preferably, described the 3rd judgment variables
, the predetermined value corresponding with the 3rd judgment variables is zero;
Preferably, described the 4th judgment variables is described
(wherein
) and described the 4th judgment variables DV
4Corresponding predetermined value is zero.
In like manner, when described the 3rd judgment variables, the 4th judgment variables during based on above-mentioned computing formula, the predetermined value of making comparisons with it is zero.Certainly, along with the equivalents of specific formula for calculation, described predetermined value is to be any numerical value i, for example,
So, not get rid of described predetermined value and have other number, all similarly adopt being equal to replacement and all should being included within protection scope of the present invention of inventive concept.
Need to prove that when the precognition judgment condition sent PUCCH format 1b form for the user, what the user sent was the state information of dibit.By above-mentioned steps, further combined with the 3rd judgment variables and the 4th judgment variables, the invention provides multiple functional judging process.Specifically contain the state informations such as DTX, SR, ACK, NACK, simultaneously, also contained the state information of dibit.Advantage of the present invention is to judge exactly the various states of LTE ascending control channel.
Fig. 5 is the schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention, comprising:
The variable computing unit is used in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables;
The status determining unit that links to each other with described variable computing unit is used for more described judgment variables and sets numerical value, determines the state information of transmitting in the channel according to result relatively.
Fig. 6 is the first embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention, and described variable computing unit comprises:
The the first variable computing unit that links to each other with described status determining unit is used for calculating the first judgment variables, the channel response power estimated value after described the first judgment variables merges by high specific
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
Difference obtain;
Described status determining unit also is used for according to the first judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX; When the first judgment variables that has a time slot greater than setting numerical value, and the precognition user sends PUCCH format 1, the state information of then determining to transmit in the channel is for there being dispatch request SR.
Need to prove that Fig. 6 is corresponding with Fig. 2, the checkout gear of signal can judge whether the state information of transmitting in the channel is discontinuous transmission DTX in the described LTE ascending control channel.Wherein, identical in the concrete operational mode of unit and the method.
Fig. 7 is the second embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention, and described variable computing unit also comprises:
The the second variable computing unit that links to each other with described status determining unit is used for calculating the second judgment variables, and described the second judgment variables obtains by the real part of high specific combined signal;
Described status determining unit also is used for according to the second judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, and the precognition user sends PUCCH format 1a, determines that then the state information of transmitting in the channel is negative acknowledgment NACK; When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the precognition user sends PUCCH format 1a, judges that then the state information of transmitting in the channel is as just confirming ACK.
The noise power calculation unit that links to each other with described the first variable computing unit is used for calculating noise power estimated value, and account form specifically comprises: the noise power of utilizing the calculated signals data symbol in the data symbol channel; Utilize the noise power of the calculated signals frequency pilot sign in the frequency pilot sign channel; According to the noise power of described data symbol and the noise power calculation mean value of described frequency pilot sign, obtain described noise power estimation value.
The responding power computing unit that links to each other with described the first variable computing unit is used for calculating channel response power estimated value, and account form comprises that specifically calculated data meets the mean value of default several channel estimation values of channel, obtains data mean value
Calculate the mean value of default several channel estimation values of frequency pilot sign channel, obtain the pilot average value
According to described data mean value and described pilot average value, calculate the channel response power estimated value on a time slot, the reception antenna
, the computing formula of described channel response power estimated value is,
, n wherein
sRepresent n
sIndividual time slot, j represents the j reception antenna.
The condition judgment unit that links to each other with described status determining unit is used for the precognition judgment condition is judged that described precognition judgment condition comprises that the user sends PUCCH format 1 that the user sends PUCCH format 1a, and the user sends PUCCH format 1b; Described status determining unit also is used for determining the state information that channel transmits according to the judged result of the judgment variables of described variable computing unit and the precognition judgment condition of described condition judgment unit.
Need to prove that Fig. 7 is corresponding with Fig. 3, the checkout gear of signal further, can also judge that whether the state information of transmitting in the channel is for there being dispatch request SR in the described LTE ascending control channel except can judging discontinuous transmission DTX state.Wherein, identical in the concrete operational mode of unit and the method.
Fig. 8 is the 3rd embodiment schematic diagram of the checkout gear of signal in the LTE ascending control channel of the present invention.Described variable computing unit also comprises:
The ternary computing unit that links to each other with described status determining unit is used for calculating the 3rd judgment variables, and described the 3rd judgment variables obtains by the imaginary part of high specific combined signal;
Described status determining unit also is used for according to the 3rd judgment variables being judged the judged result of obtaining determines the state information that channel transmits.
The 4th variable computing unit that links to each other with described status determining unit is used for calculating the 4th judgment variables, and described the 4th judgment variables obtains by the real part of high specific combined signal and the difference of imaginary part;
Described status determining unit also is used for described status determining unit and also is used for according to the 4th judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (NACK, NACK); When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (ACK, ACK); When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (ACK, NACK); When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (NACK, ACK).
Need to prove, the checkout gear of signal is except judging discontinuous transmission DTX, dispatch request SR two states is arranged that negative acknowledgment NACK is just confirming the ACK state in the LTE ascending control channel as described in Figure 8, further, can also judge the state information of dibit.Advantage of the present invention is to judge exactly the various states of LTE ascending control channel.In addition, described the first decision unit can adopt the noise power estimation value of obtaining with prior art or other modes
, channel response power estimated value
Parameter can be obtained by the account form that proposes in noise power calculation of the present invention unit, the described corresponding power computing unit.Wherein, identical in the concrete operational mode of unit and the method.
Fig. 9 is the simulation result of checkout gear in the ETU70 channel model of signal in the LTE ascending control channel of the present invention.
Particularly, Fig. 9 is the present invention under 10MHz system bandwidth, PUCCH format 1a configuration, the simulation result in the ETU70 channel model.The result shows among the figure, and the present invention can satisfy the 3GPP agreement detects performance about PUCCH index request well.Index request in this agreement is: guaranteeing that DTX to ACK probability is no more than 1%, and under the prerequisite of the probability of ACK miss when being no more than 1%, the minimum requirements under alone family of required SNR value is-5.4dB that minimum requirements is-4.4dB under the multi-user.And as shown in the figure, guaranteeing that under above-mentioned two preconditions, required SNR value is about-8dB, is about-5dB, and is all superior than agreement specification under alone family under the multi-user.So as seen, superiority of the present invention.
The present invention also provides a kind of LTE base station, comprising: the checkout gear of signal in the foregoing LTE ascending control channel.
Above-described embodiment of the present invention does not consist of the restriction to protection range of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (11)
1. the detection method of signal in the LTE ascending control channel is characterized in that, comprising:
The base station is in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables, described judgment variables comprises by the channel response power estimated value after the high specific merging
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
The first judgment variables of obtaining of difference;
More described judgment variables with set numerical value, determine the state information of transmitting in the channel according to result relatively.
2. the detection method of signal in the LTE ascending control channel according to claim 1 is characterized in that, described judgment variables with set numerical value, determine the step of the state information transmitted in the channel according to result relatively, comprising:
When the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX.
3. the detection method of signal in the LTE ascending control channel according to claim 2 is characterized in that, described judgment variables with set numerical value, determine the step of the state information transmitted in the channel according to result relatively, also comprise:
When the first judgment variables that has a time slot greater than setting numerical value, and the precognition user sends PUCCH format 1, the state information of then determining to transmit in the channel is for there being dispatch request SR.
4. the detection method of signal to 3 each described LTE ascending control channels according to claim 1 is characterized in that: described judgment variables also comprises the second judgment variables that the real part by the high specific combined signal obtains;
When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, and the precognition user sends PUCCH format 1a, determines that then the state information of transmitting in the channel is negative acknowledgment NACK;
When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the precognition user sends PUCCH format 1a, judges that then the state information of transmitting in the channel is as just confirming ACK.
5. the detection method of signal in the LTE ascending control channel according to claim 4 is characterized in that: described judgment variables also comprises the 3rd judgment variables DV that the imaginary part by the high specific combined signal obtains
3, the real part by the high specific combined signal and the difference acquisition of imaginary part the 4th judgment variables DV
4
When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (NACK, NACK);
When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (ACK, ACK);
When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (ACK, NACK);
When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (NACK, ACK).
6. the checkout gear of signal in the LTE ascending control channel is characterized in that, comprising:
The variable computing unit is used in conjunction with the noise power estimation value at least one antenna
And channel response power estimated value
Calculate judgment variables;
The status determining unit that links to each other with described variable computing unit is used for more described judgment variables and sets numerical value, determines the state information of transmitting in the channel according to result relatively.
7. the checkout gear of signal in the LTE ascending control channel according to claim 6 is characterized in that described variable computing unit comprises:
The the first variable computing unit that links to each other with described status determining unit is used for calculating the first judgment variables, the channel response power estimated value after described the first judgment variables merges by high specific
With the noise power estimation value after the high specific merging of passing through the modifying factor correction
Difference obtain;
Described status determining unit also is used for according to the first judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables of each time slot all is less than or equal to setting numerical value, determine that the state information of transmitting in the channel is discontinuous transmission DTX; When the first judgment variables that has a time slot greater than setting numerical value, and the precognition user sends PUCCH format 1, the state information of then determining to transmit in the channel is for there being dispatch request SR.
8. the checkout gear of signal in the LTE ascending control channel according to claim 7 is characterized in that described variable computing unit also comprises:
The the second variable computing unit that links to each other with described status determining unit is used for calculating the second judgment variables, and described the second judgment variables obtains by the real part of high specific combined signal;
Described status determining unit also is used for according to the second judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, and the precognition user sends PUCCH format 1a, determines that then the state information of transmitting in the channel is negative acknowledgment NACK; When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the precognition user sends PUCCH format 1a, judges that then the state information of transmitting in the channel is as just confirming ACK.
9. the checkout gear of signal to 8 each described LTE ascending control channels according to claim 6 is characterized in that described variable computing unit also comprises:
The ternary computing unit that links to each other with described status determining unit is used for calculating the 3rd judgment variables, and described the 3rd judgment variables obtains by the imaginary part of high specific combined signal;
Described status determining unit also is used for according to the 3rd judgment variables being judged the judged result of obtaining determines the state information that channel transmits.
10. the checkout gear of signal in the LTE ascending control channel according to claim 9 is characterized in that described variable computing unit also comprises:
The 4th variable computing unit that links to each other with described status determining unit is used for calculating the 4th judgment variables, and described the 4th judgment variables obtains by the real part of high specific combined signal and the difference of imaginary part;
Described status determining unit also is used for described status determining unit and also is used for according to the 4th judgment variables being judged the judged result of obtaining determines the state information that channel transmits; When the first judgment variables that has a time slot greater than present count, the second judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (NACK, NACK); When the first judgment variables that has a time slot greater than present count, the second judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (ACK, ACK); When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is greater than present count, the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determines that then the state information of transmitting in the channel is (ACK, NACK); When the first judgment variables that has a time slot greater than present count, the 3rd judgment variables is less than or equal to present count, and the 4th judgment variables is greater than present count, and the precognition user sends PUCCH format 1b, determine that then the state information of transmitting in the channel is (NACK, ACK).
11. a LTE base station is characterized in that, comprising: such as the checkout gear of signal in each described LTE ascending control channel of claim 6 to 10.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685547A (en) * | 2015-11-05 | 2017-05-17 | 大唐移动通信设备有限公司 | Channel detection method and channel detection device |
| US11457502B2 (en) | 2021-02-09 | 2022-09-27 | Hong Kong Applied Science And Technology Research Institute Co., Ltd | Method and device for detecting partial discontinuous transmission (DTX) using channel estimation data |
| CN116156611A (en) * | 2023-04-21 | 2023-05-23 | 三维通信股份有限公司 | SINR estimation method, device, system and storage medium for PUCCH |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227717A (en) * | 2008-01-05 | 2008-07-23 | 中兴通讯股份有限公司 | User equipment, base station and method for testing and presenting PUCCH transmission state |
| CN101729465A (en) * | 2008-10-15 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and device for measuring signal to noise ratio and application thereof |
| WO2010090560A1 (en) * | 2009-02-04 | 2010-08-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for receive power estimation in a mobile radio communications system |
| CN101969368A (en) * | 2010-11-03 | 2011-02-09 | 北京北方烽火科技有限公司 | Method and device for detecting answer signal |
-
2011
- 2011-10-08 CN CN201110295873.6A patent/CN103037396B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227717A (en) * | 2008-01-05 | 2008-07-23 | 中兴通讯股份有限公司 | User equipment, base station and method for testing and presenting PUCCH transmission state |
| CN101729465A (en) * | 2008-10-15 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and device for measuring signal to noise ratio and application thereof |
| WO2010090560A1 (en) * | 2009-02-04 | 2010-08-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for receive power estimation in a mobile radio communications system |
| CN101969368A (en) * | 2010-11-03 | 2011-02-09 | 北京北方烽火科技有限公司 | Method and device for detecting answer signal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685547A (en) * | 2015-11-05 | 2017-05-17 | 大唐移动通信设备有限公司 | Channel detection method and channel detection device |
| CN106685547B (en) * | 2015-11-05 | 2019-07-19 | 大唐移动通信设备有限公司 | A kind of channel detection method and device |
| US11457502B2 (en) | 2021-02-09 | 2022-09-27 | Hong Kong Applied Science And Technology Research Institute Co., Ltd | Method and device for detecting partial discontinuous transmission (DTX) using channel estimation data |
| CN116156611A (en) * | 2023-04-21 | 2023-05-23 | 三维通信股份有限公司 | SINR estimation method, device, system and storage medium for PUCCH |
| CN116156611B (en) * | 2023-04-21 | 2023-09-12 | 三维通信股份有限公司 | SINR estimation method, device, system and storage medium for PUCCH |
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Address after: 510663 Shenzhou Road 10, Science City, Guangzhou, Guangdong, Guangzhou Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 Shenzhou Road 10, Science City, Guangzhou, Guangdong, Guangzhou Patentee before: Comba Telecom System (China) Ltd. |