CN102013937B - Channel quality estimation method and transmission method of E-UCCH (Enhanced-Uplink Control Channel) - Google Patents
Channel quality estimation method and transmission method of E-UCCH (Enhanced-Uplink Control Channel) Download PDFInfo
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Abstract
The invention discloses a channel quality estimation method and transmission method of an E-UCCH (Enhanced-Uplink Control Channel), which comprises the step of: estimating the quality of the E-UCCH by using a decoded output sequence Y(t) of the E-UCCH, which is obtained through merging diversity, wherein the peak mean ratio of the output sequence is used as a current E-UCCH quality estimation result. The invention also discloses a method for transmitting the E-UCCH on the basis of the channel quality estimation method. By applying the invention, the implementation of the E-UCCH quality estimation can be simplified, the accuracy of the E-UCCH quality estimation is improved and the transmission property of the E-UCCH is improved.
Description
Technical field
The present invention relates to the up access of high-speed packet (HSUPA) technology, particularly channel quality estimation method and the transmission method of E-UCCH among a kind of HSUPA.
Background technology
In the HSUPA system, user data arrives EDCH transmission channel unit with the form of transmission block and encodes in each Transmission Time Interval of 5 milliseconds, then is carried on DPCH (E-PUCH) transmission.Because adopt Adaptive Modulation and Coding (AMC) and mix automatic repeat request (HARQ) technology, E-PUCH adopts different modulation systems in different Transmission Time Intervals, simultaneously, E-DCH also adopts different coded systems.Like this, just need special ascending control channel (E-UCCH) carrying about the ascending control information of E-DCH.
Agreement regulation E-UCCH adopts second order (32,10) Reed-Muller coding and QPSK modulation, and is mapped to E-PUCH.In each E-DCH Transmission Time Interval, carry up E-DCH transmission channel and relevant control information (E-UCCH) with one or more E-PUCH, namely in a Transmission Time Interval, may there be a plurality of E-UCCH.
The E-UCCH channel quality obviously is very important for the correct demodulation of E-DCH.According to the requirement of agreement, the number of the E-UCCH that the scheduler that the channel quality of E-UCCH depends primarily on NodeB configures at each E-DCH Transmission Time Interval is adjusted the channel quality of E-UCCH by the diversity gain of a plurality of E-UCCH.In real system, NodeB deciphers and channel quality estimation E-UCCH, and the E-UCCH number when determining next time E-DCH transmission according to the channel quality estimation result, when transmitting, transmits according to the E-UCCH number that should determine next time.
For the decode procedure of E-UCCH as shown in Figure 1, joint detection receiver receives the E-PUCH signal that each user receives within each time interval, number according to the E-UCCH that configures, extract one or more E-UCCH signal, it also is the QPSK symbol of E-UCCH, adopting specified criteria (merging or the high specific merging criterion such as equal proportion) to carry out diversity merges, consist of the soft bit information sequence R (t) of one 32 dimension, wherein, t represents subframe numbers, then multiply by each mask composite sequence (having 16 kinds) to remove the contribution of mask, carry out afterwards the sequence of correlation values Y (t) of quick Hadamard (Hardarmard) conversion acquisition receiving sequence and Walsh sequence, comprise 32 real numbers, the corresponding single order (32 of maximum wherein, 6) combination of Reed-Muller code word and mask is judged to be the code word of second order (32, the 10) Reed-Muller that sends, and its corresponding information bit is the E-UCCH information bit that sends.
At present, the channel quality estimation mode of E-UCCH is: utilize the QPSK symbol of the E-UCCH that extracts to carry out channel quality estimation.Wherein, because the QPSK symbol obtains before carrying out diversity merging processing, therefore, corresponding each E-UCCH can obtain one group of QPSK symbol.Particularly, corresponding each E-UCCH can obtain 17 QPSK symbols, and each symbol utilizes 2 numeric representations, n E-UCCH just need to utilize 34 * n numeric representation, utilize these numerical value to carry out the channel quality estimation of E-UCCH, on the one hand, along with the increase of E-UCCH number, need data volume to be processed greatly to increase, and owing to the E-UCCH number can't limit, therefore, larger for determining that the required amount of calculation meeting of channel quality is fluctuateed up and down; On the other hand, carry out channel quality estimation and also need the diversity gain of further considering that a plurality of E-UCCH bring, when usually considering diversity gain according to the increase of E-UCCH number, think that diversity gain is linear growth, actual diversity gain but is not linear with the E-UCCH number, therefore but in fact,, estimation for diversity gain tends to exist deviation, and causes the as a result accuracy reduction of final channel quality estimation.
When the E-UCCH number when carrying out next E-DCH transmission is selected, carry out according to above-mentioned definite E-UCCH channel quality estimation result.Therefore, channel quality estimation result's is inaccurate, will cause the E-UCCH number to be selected reasonable not, thereby affects the transmission performance of E-UCCH, and then causes the receptivity of the E-DCH of system transmission.
Summary of the invention
In view of this, the invention provides the channel quality estimation method of E-UCCH among a kind of HSUPA, can simplify the realization of E-UCCH channel quality estimation, improve the accuracy of channel quality estimation.
The present invention also provides the transmission method of E-UCCH among a kind of HSUPA, can improve the transmission performance of E-UCCH.
For achieving the above object, the present invention adopts following technical scheme:
The channel quality estimation method of E-UCCH among a kind of HSUPA comprises:
All E-UCCH that current subframe is received decipher, the output sequence Y (t) of the fast Hadamard transform that the decoding code word that output is adjudicated is corresponding, and wherein, t is the frame number of current subframe;
Determine the maximum amplitude Y of described output sequence Y (t)
Max, and calculate the peak-to-average force ratio of described output sequence, with the peak-to-average force ratio that the calculates current channel quality estimation result as E-UCCH, wherein, the average energy of described output sequence is
Y (t, m) is m real number among the output sequence Y (t).
The transmission method of E-UCCH among a kind of HSUPA comprises:
A, all E-UCCH that current subframe is received decipher, the output sequence Y (t) of the fast Hadamard transform that the decoding code word that output is adjudicated is corresponding, and wherein, t is the frame number of current subframe; Determine the maximum amplitude Y of described output sequence Y (t)
Max, and calculate the peak-to-average force ratio of described output sequence
With the peak-to-average force ratio that calculates as the current channel quality estimation of E-UCCH EbN0_current as a result; Wherein, the average energy of described output sequence is
Y (t, m) is m real number among the output sequence Y (t);
B, the E-UCCH channel quality EbN0_next=EbN0_current+P1-P0 that utilizes the next E-DCH of described current channel quality estimation prediction of result to transmit, wherein, P
0For NodeB receives the power gain that current subframe E-DCH distributes, P
1For NodeB is the power gain that next E-DCH transmission distributes;
If c EbN0_next is greater than the first default thresholding, then the E-UCCH number with current subframe subtracts 1, as the E-UCCH number of next E-DCH transmission; If EbN0_next is less than the second default thresholding, then the E-UCCH number with current subframe adds 1, as the E-UCCH number of next E-DCH transmission; Other situation is with the E-UCCH number of the current subframe E-UCCH number as next E-DCH transmission;
The E-UCCH number that d, the next E-DCH that will determine transmit is handed down to UE, is used for described UE and carries out coding and the transmission of E-UCCH.
Preferably, according to type of service, HSUPA number of users, the situation that takies of system resource and the target error rate of E-UCCH of the network planning, HSUPA, determine described the first thresholding and the second thresholding.
Preferably, when NodeB is that the time slot that distributes of next E-DCH transmission and code channel resource are can't satisfy the determined E-UCCH number of step c the time, between step c and d, the method further comprises: according to time slot and the code channel resource that NodeB is next E-DCH transmission distribution, the E-UCCH number of determining is adjusted.
Preferably, for the E-DCH transmission first time of dispatched users, predict that the mode of the E-UCCH channel quality of this first time of E-DCH transmission is:
E-UCCH channel quality EbN0_1st=EbN0_Erucch+PRX according to the current channel quality prediction described first time of the E-DCH of E-RUCCH transmission
Des_base+ β
e-PRX
Des_erucchWherein, PRX
Des_baseThe benchmark expectation received power of E-PUCH during for the first time E-DCH transmission of high level configuration, β
eBe the gain factor of physical resource, modulation system and HRAQ biasing of E-DCH when transmission first time E_PUCH of distributing of corresponding E_TFC transmission block size, PRX
Des_erucchExpectation received power for the E-RUCCH of high level configuration
When the channel quality EbN0_1st＞6+ Δ of prediction, determine that the E-UCCH number of for the first time E-DCH transmission is 1;
When the channel quality 3+ Δ≤EbN0_1st＜6+ Δ of prediction, determine that the E-UCCH number of for the first time E-DCH transmission is 2;
When the channel quality Δ≤EbN0_1st＜3+ Δ of prediction, determine that the E-UCCH number of for the first time E-DCH transmission is 3;
When the channel quality-3+ Δ≤EbN0_1st of prediction＜Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 4;
When the channel quality-6+ Δ≤EbN0_1st of prediction＜-during the 3+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 5;
When the channel quality-9+ Δ≤EbN0_1st of prediction＜-during the 6+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 6;
When the channel quality-12+ Δ≤EbN0_1st of prediction＜-9 Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 7;
When the channel quality EbN0_1st of prediction＜-during the 12+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 8;
Wherein, Δ is represented as the power gain of the imperfect power control institute rollback of compensation E-UCCH.
As seen from the above technical solution, among the present invention, the decoding output sequence Y (t) of the E-UCCH that obtains after utilizing diversity to merge carries out channel quality estimation to E-UCCH, with the peak-to-average force ratio of this output sequence current channel quality estimation result as the E-UCCH channel.On the one hand, the result that Y (t) obtains for the relevant treatment of diversity after merging, the calculating of Y (t) peak-to-average force ratio is not subjected to the impact of E-UCCH number, and as seen, this channel quality estimation mode realizes simply, computation complexity can be predicted; On the other hand, the diversity gain of a plurality of E-UCCH has been reflected among the Y (t), do not need additionally to consider again diversity gain, and the soft decision information of this output sequence Y (t) reflection E-UCCH decode results, the channel quality estimation result who therefore obtains accordingly is more accurate.The number of E-UCCH when determining next E-DCH transmission based on above-mentioned accurately channel quality estimation result again, thus make the E-UCCH number of selection more reasonable, improve the transmission performance of E-UCCH, and then improve the receptivity of the E-DCH of system transmission.
Description of drawings
Fig. 1 is the schematic diagram of E-UCCH decode procedure.
Fig. 2 is the channel quality estimation of E-UCCH among the present invention and the particular flow sheet of transmission method.
Fig. 3 is the absolute deviation schematic diagram of channel quality estimation of the present invention under the different E-UCCH numbers.
Fig. 4 is the variance of channel quality estimation of the present invention under the different E-UCCH numbers.
Embodiment
For making purpose of the present invention, technological means and advantage clearer, below in conjunction with accompanying drawing the present invention is described in further details.
In E-UCCH interpretation method shown in Figure 1, the Y (t) of output is the output sequence of fast Hadamard transform corresponding to the decoding code word of adjudicating, namely receiving sequence and Walsh sequence are carried out 32 correlated serieses of tieing up that associative operation obtains, wherein, the decode results of the corresponding E-UCCH of the maximum in the correlated series.As seen, the decode results of Y (t) reflection E-UCCH has also just directly characterized the current channel conditions of E-UCCH.
Based on this, basic thought of the present invention is: utilize output sequence Y (t) to carry out the channel quality estimation of E-UCCH, thereby simplify the channel quality estimation of E-UCCH, and improve the accuracy of channel quality estimation.Again based on this accurately the channel quality estimation result carry out the E-UCCH number and select, thereby improve the E-UCCH transmission performance.
Next specific implementation of the present invention is described in detail.
Fig. 2 is the channel quality estimation of E-UCCH among the present invention and the particular flow sheet of transmission method, and as shown in Figure 2, the method comprises:
In this step, according to existing mode E-UCCH is deciphered, obtain output sequence Y (t), t is the frame number of current subframe.By decoding flow process shown in Figure 1 as seen, this output sequence Y (t) is too set and process, therefore, reflected diversity gain among this Y (t), and how many numbers of the E-UCCH that no matter participates in deciphering is, the data volume of the Y that obtains (t) all is consistent, namely is a sequence that comprises 32 real numbers.
Here the decode results of the corresponding E-UCCH of the maximum of sequence Y (t).
As previously mentioned, the decode results of the corresponding E-UCCH of the maximum of Y (t), Y
MaxThe energy of useful signal in the namely E-UCCH decoding of corresponding energy; Sequence average energy in the output sequence behind the removal useful signal energy is noise energy.
The account form of concrete En is:
Wherein, y (t, m) is m real number among the output sequence Y (t).
By abovementioned steps 202～203 as can be known, useful signal energy and the noise energy of E-UCCH, the obvious ratio of the two the channel quality estimation Eb/N0 as a result that is E-UCCH, here, take dB as unit representation, namely
So far, the E-UCCH channel quality estimation method flow process among the present invention finishes.By above-mentioned channel quality estimation flow process as seen, when utilizing Y (t) to carry out channel quality estimation, the complexity of processing and E-UCCH number are irrelevant, no matter how many E-UCCH numbers is, need data volume to be processed to be always 32 real numbers, namely equate with the data volume that Y (t) comprises, thereby make the realization of channel quality estimation simpler, complexity also is foreseeable.Simultaneously, owing to having reflected the diversity gain of E-UCCH among the Y (t), do not need additionally to consider the E-UCCH diversity gain, thereby diversity gain and the actual diversity gain avoiding estimating are the deviation that channel quality estimation is brought, have therefore improved the accuracy of channel quality estimation; Further, Y (t) itself is the soft decision information that E-UCCH decoding provides, and can reflect more accurately the E-UCCH channel quality, therefore directly utilizes Y (t) to estimate, has further improved the accuracy of channel quality estimation.
Below, the number of E-UCCH is selected when carrying out next E-DCH transmission based on the result of above-mentioned channel quality estimation.
Above-mentioned estimation for channel quality is based on that the decode results of the E-UCCH signal that current subframe receives carries out, and therefore reflection is current E-UCCH channel quality.And carry out the E-UCCH number when selecting, to select for next E-DCH transmission, therefore, the E-UCCH number of this selection should be that the E-UCCH channel quality during with next E-DCH transmission adapts, and the E-UCCH channel quality in the time of also just need to transmitting next E-DCH is predicted.
Because the Transmission Time Interval between twice E-DCH transmission is usually shorter, can think that channel circumstance does not change, therefore the wireless channel environment of twice E-DCH transmission can be thought constant.But simultaneously, because the HSUPA scheduler is not identical to the power gain that the each dispatching office of scheduled user distributes, like this, the NodeB scheduler needs to consider that scheduler is to receive the power gain P that this E-DCH distributes when the channel quality of the next E-DCH transmission of prediction E-UCCH
0And be the power gain P that next EDCH transmission distributes
1The mode of E-UCCH channel quality is when particularly, predicting next E-DCH transmission: EbN0_next=EbN0_current+P1-P0.
Adopt self-adaptation control method to determine the number N_next of next E-DCH transmission selection EUCCH.Wherein, described in aforementioned background art, realize diversity gain by a plurality of E-UCCH, thereby improve signal receiving quality.If channel quality is better, then can carries out by less E-UCCH number the transmission of control information, thereby save system resource; If channel quality is relatively poor, then needs to obtain larger diversity gain by the number that increases E-UCCH, thereby improve the receptivity of E-UCCH.
And in aforementioned process for the E-UCCH channel quality estimation, comprised diversity gain among the channel quality estimation result who obtains, that is to say, the E-UCCH channel quality result of prediction has comprised the diversity gain that a plurality of E-UCCH bring in the last E-DCH transmission in the step 205.Therefore, during E-UCCH number when determining next E-DCH transmission, all be to select as the basis take the E-UCCH number of the last E-DCH transmission.
Particularly, suppose that the number of E-DCH when transmission E-UCCH of current subframe in the step 201 is N_current, then definite mode of N_next is as follows:
If EbN0_next＞EbN0_Thr1, N_next=N_current-1;
If EbN0_next＜EbN0_Thr2, N_next=N_current+1;
Except above-mentioned situation, N_next=N_current.
Wherein, it is fixed that threshold value EbN0_Thr1 and EbN0_Thr2 need to come according to the type of service of the network planning, HSUPA and current system situation, generally can get EbN0_Thr1 and be 10, EbN0_Thr2 and be 5 and guarantee that the word error probability of EUCCH is in the 10^-3 level.Wherein, the current system situation can comprise scheduling situation, channel conditions of HSUPA user's number, system resource etc.
The realization of this step is identical with existing mode, just repeats no more here.
So far, the transmission method flow process of E-UCCH finishes among the present invention.In above-mentioned flow process, the number that the time interval resource that if the NodeB scheduler is next EDCH transmission to be distributed and code channel resource can't satisfy the EUCCH that determines in the step 206, need further to adjust the number of EUCCH, make it satisfy the resource that the NodeB scheduler distributes.
When selecting, the channel quality prediction result of E-UCCH carries out when all being based on next E-DCH transmission in the above-mentioned E-UCCH number of carrying out, and this channel quality prediction is based on, and the E-UCCH channel quality estimation result of the last E-DCH transmission carries out.But, if for dispatched users, in the time of need to determining the E-UCCH number for the E-DCH transmission first time, obviously can not be by the way, among the present invention, E-UCCH channel quality during according to for the first time E-DCH transmission of the channel quality prediction of E-RUCCH, and the number of carrying out E-UCCH based on predicting the outcome is selected.
Particularly, the channel quality prediction mode of for the first time E-DCH transmission is: EbN0_1st=EbN0_Erucch+PRX
Des_base+ β
e-PRX
Des_erucchWherein, PRX
Des_baseThe benchmark expectation received power of E-PUCH during for the first time E-DCH transmission of high level configuration, β
eBe the gain factor of physical resource, modulation system and HRAQ biasing of E-DCH when transmission first time E_PUCH of distributing of corresponding E_TFC transmission block size, PRX
Des_erucchExpectation received power for the E-RUCCH of high level configuration.
The mode of E-UCCH number is as shown in table 1 during according to the definite for the first time E-DCH of the EbN0_1st of this prediction transmission:
| The interval at the EUCCH channel quality place of prediction | The number N0 of EUCCH |
| EbN0_1st＞6+Δ | 1 |
| 3+Δ≤EbN0_1st＜6+ |
2 |
| Δ≤EbN0_1st＜3+Δ | 3 |
| -3+Δ≤EbN0_1st＜ |
4 |
| -6+Δ≤EbN0_1st＜-3+Δ | 5 |
| -9+Δ≤EbN0_1st＜-6+Δ | 6 |
| -12+Δ≤EbN0_1st＜-9+Δ | 7 |
| EbN0_1st＜-12+ |
8 |
Wherein, because the E-UCCH channel quality during above-mentioned definite first time E-DCH transmission, corresponding is the process of an open loop power control, because the power control accuracy deviation of open loop power control, introduce the power gain that Δ is represented as compensation Non-ideal Power control institute rollback, this numerical value need to consider according to the network planning and NodeB system.Specifically can carry out the value that Δ is determined in emulation according to the result of calculation under the various different error rates.
As above, the E-UCCH number in the time of namely can transmitting each time E-DCH is reasonably selected, thereby improves the transmission performance of E-UCCH, and then improves the receptivity of E-DCH.
To having carried out emulation according to channel quality estimation method of the present invention, the channel quality that obtains estimating and the relativity of actual channel quality under the typical environment (for example user's actual channel quality value is 4dB).Wherein, Fig. 3 is the absolute deviation schematic diagram that different E-UCCH number lower channel quality are estimated, Fig. 4 is the variance that different E-UCCH number lower channel quality are estimated.As seen from Figure 4, carry out the channel quality estimation of E-UCCH according to method of the present invention, and the deviation between the actual channel quality obviously is better than existing channel quality estimation result only about 0.05dB.And the channel quality estimation deviation about 0.05dB can not impact substantially for subsequent treatment.
Simultaneously, by Fig. 3 and Fig. 4 as seen, utilize the progressive effective estimation that is estimated as of EUCCH channel quality that the method for decoding information estimating user E-UCCH channel quality obtains.
In addition, the present invention also carries out emulation to the E-UCCH receptivity of carrying out according to method of the present invention after the E-UCCH number is selected, under the scene of 3GPP channel model Casell, even in the situation that the control of undesirable power can guarantee that also the word error probability of E-UCCH is below 1*10^-2.
Being preferred embodiment of the present invention only below, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the channel quality estimation method of E-UCCH among the HSUPA is characterized in that, the method comprises:
All E-UCCH that current subframe is received decipher, the output sequence Y (t) of the fast Hadamard transform that the decoding code word that output is adjudicated is corresponding, and wherein, t is the frame number of current subframe;
Determine the maximum amplitude Y of described output sequence Y (t)
Max, and calculate the peak-to-average force ratio of described output sequence, with the peak-to-average force ratio that the calculates current channel quality estimation result as E-UCCH, wherein, the average energy of described output sequence is
Y (t, m) is m real number among the output sequence Y (t).
2. the transmission method of E-UCCH among the HSUPA is characterized in that, the method comprises:
A, all E-UCCH that current subframe is received decipher, the output sequence Y (t) of the fast Hadamard transform that the decoding code word that output is adjudicated is corresponding, and wherein, t is the frame number of current subframe; Determine the maximum amplitude Y of described output sequence Y (t)
Max, and calculate the peak-to-average force ratio of described output sequence
With the peak-to-average force ratio that calculates as the current channel quality estimation of E-UCCH EbN0_current as a result; Wherein, the average energy of described output sequence is
Y (t, m) is m real number among the output sequence Y (t);
B, the E-UCCH channel quality EbN0_next=EbN0_current+P that utilizes the next E-DCH of described current channel quality estimation prediction of result to transmit
1-P
0, wherein, P
0For NodeB receives the power gain that current subframe E-DCH distributes, P
1For NodeB is the power gain that next E-DCH transmission distributes;
If c EbN0_next is greater than the first default thresholding, then the E-UCCH number with current subframe subtracts 1, as the E-UCCH number of next E-DCH transmission; If EbN0_next is less than the second default thresholding, then the E-UCCH number with current subframe adds 1, as the E-UCCH number of next E-DCH transmission; Other situation is with the E-UCCH number of the current subframe E-UCCH number as next E-DCH transmission;
The E-UCCH number that d, the next E-DCH that will determine transmit is handed down to UE, is used for described UE and carries out coding and the transmission of E-UCCH.
3. method according to claim 2 is characterized in that, according to type of service, HSUPA number of users, the situation that takies of system resource and the target error rate of E-UCCH of the network planning, HSUPA, determines described the first thresholding and the second thresholding.
4. method according to claim 2, it is characterized in that, when NodeB is that the time slot that distributes of next E-DCH transmission and code channel resource are can't satisfy the determined E-UCCH number of step c the time, between step c and d, the method further comprises: according to time slot and the code channel resource that NodeB is next E-DCH transmission distribution, the E-UCCH number of determining is adjusted.
5. arbitrary described method in 4 according to claim 2 is characterized in that, for the E-DCH transmission first time of dispatched users, the mode of the E-UCCH channel quality that E-DCH transmits is to predict this first time:
E-UCCH channel quality EbN0_1st=EbN0_Erucch+PRX according to the current channel quality prediction described first time of the E-DCH of E-RUCCH transmission
Des_base+ β
e-PRX
Des_erucchWherein, EbN0_Erucch is the channel quality of E-RUCCH, PRX
Des_baseThe benchmark expectation received power of E-PUCH during for the first time E-DCH transmission of high level configuration, β
eBe the gain factor of physical resource, modulation system and HRAQ biasing of E-DCH when transmission first time E_PUCH of distributing of corresponding E_TFC transmission block size, PRX
Des_erucchExpectation received power for the E-RUCCH of high level configuration;
Channel quality EbN0_1st when prediction〉during the 6+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 1;
When the channel quality 3+ Δ≤EbN0_1st＜6+ Δ of prediction, determine that the E-UCCH number of for the first time E-DCH transmission is 2;
When the channel quality Δ≤EbN0_1st＜3+ Δ of prediction, determine that the E-UCCH number of for the first time E-DCH transmission is 3;
When the channel quality-3+ Δ≤EbN0_1st of prediction＜Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 4;
When the channel quality-6+ Δ≤EbN0_1st of prediction＜-during the 3+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 5;
When the channel quality-9+ Δ≤EbN0_1st of prediction＜-during the 6+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 6;
When the channel quality-12+ Δ≤EbN0_1st of prediction＜-9 Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 7;
When the channel quality EbN0_1st of prediction＜-during the 12+ Δ, determine that the E-UCCH number of for the first time E-DCH transmission is 8;
Wherein, Δ is represented as the power gain of the imperfect power control institute rollback of compensation E-UCCH.
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| EP1274208A1 (en) * | 2001-02-27 | 2003-01-08 | Matsushita Electric Industrial Co., Ltd. | Communication device and transmission mode selecting method |
| CN101150358A (en) * | 2006-09-21 | 2008-03-26 | 大唐移动通信设备有限公司 | Method for processing and multiplexing uplink control channel |
| CN101198080A (en) * | 2006-12-05 | 2008-06-11 | 中兴通讯股份有限公司 | High-speed ascending access data of time division code division multiple access system and its signal transmission method |
| CN101374283A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method for scheduling user equipment to transmit ascending data by base station and base station system |
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| EP1274208A1 (en) * | 2001-02-27 | 2003-01-08 | Matsushita Electric Industrial Co., Ltd. | Communication device and transmission mode selecting method |
| CN101150358A (en) * | 2006-09-21 | 2008-03-26 | 大唐移动通信设备有限公司 | Method for processing and multiplexing uplink control channel |
| CN101198080A (en) * | 2006-12-05 | 2008-06-11 | 中兴通讯股份有限公司 | High-speed ascending access data of time division code division multiple access system and its signal transmission method |
| CN101374283A (en) * | 2007-08-23 | 2009-02-25 | 大唐移动通信设备有限公司 | Method for scheduling user equipment to transmit ascending data by base station and base station system |
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