CN100483962C - Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method - Google Patents
Mobile terminal, joint receiver, activated code channel information detection and allocating device and its method Download PDFInfo
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Abstract
A active code channel detection and configurator contains a active code channel detector and an active code channel configurator wherein the active code channel detector transmit information of received data and frequency channel response estimation information to active code channel configurator, the active code channel configurator makes judgment that whether start the active code channel configurator or utilize it to output code channel configuration information. Said invention can give out active code channel information configuration before demodulating code channel information.
Description
Technical field
The present invention relates to mobile communication system terminal, particularly relate to a kind of portable terminal, joint receiver, activated code channel information detection and the configurator of joint-detection and activated code channel information in TD-SCDMA (time-division-synchronization code multi-address division system), realized and detect and collocation method.
Background technology
In the TD-SCDMA terminal system, associated detecting method is a kind of data estimation method of function admirable, is one of important core technology of TD-SCDMA, and its physical significance is to estimate all customer data that base station system is sent out simultaneously.The joint-detection method of estimation needs the generation system matrix, and wherein sytem matrix is by a plurality of users' spreading code and corresponding channel impulse response decision.The shared physical channel of each spreading code is called a code channel.Sytem matrix is the response matrix of whole system, not only comprises the relevant system parameters of work at present time slot, and comprises information such as all users' of work at present time slot spreading code information and channel impulse response.The premium properties of joint-detection that hence one can see that is based on known transmission code channel and channel information, so must be equipped with code channel information in data detection process.
Yet in the TD-SCDMA system, terminal but can not shift to an earlier date the information that accurately obtains sending code channel.Usually, this information relies on the estimation of work at present time slot reception data and obtains, and will inevitably have evaluated error in the code channel information like this.So how to solve in the joint-detection activated code channel estimate, and to use this direct estimated result neatly and in time adjust be very important.
Summary of the invention
The objective of the invention is to, a kind of activated code channel detection and configurator and detection and collocation method with strong robustness is provided.
Another object of the present invention is to, a kind of joint receiver that adopts above-mentioned activated code channel detection and configurator is provided.
Another purpose of the present invention is, a kind of portable terminal that adopts above-mentioned joint receiver is provided.
Activated code channel of the present invention detects and configurator, and it comprises an activated code channel detector and an activated code channel configurator,
This activated code channel detector obtains information according to a preliminary estimate according to the baseband digital signal that receives, channel response estimated information and high-rise configuration code channel information;
This activated code channel configurator comprises an activated code channel decision device, an activated code channel information combiner and an information outlet selector, wherein,
The activated code channel decision device is according to the high level configuration code channel information that receives, direct configuration information is outputed to the information outlet selector, or, the code channel information of precognition or the code channel activating information of configuration are outputed to the activated code channel information combiner, and, when needs start or utilize the activated code channel detector, log-on message is outputed to the activated code channel detector, information outputs to the activated code channel information combiner so that the activated code channel detector is incited somebody to action according to a preliminary estimate;
The code channel information of the precognition that the activated code channel information combiner will obtain from the activated code channel decision device or the code channel activating information of configuration merge the estimated information that obtains merging with the information according to a preliminary estimate that obtains from the activated code channel detector, and the estimated information that merges is outputed to the information outlet selector;
The information outlet selector disposes code channel information according to high level, selects the estimated information of direct configuration information or merging, and selection result is exported as the code channel configuration information.
Detection of the present invention and collocation method can produce the code channel configuration information according to the digital baseband signal, high-rise code channel configuration information and the channel response estimated information that receive, and it may further comprise the steps:
A) the activated code channel detector obtains information according to a preliminary estimate according to the baseband digital signal that receives, channel response estimated information and high-rise configuration code channel information;
B) the activated code channel decision device is according to the high level configuration code channel information that receives, direct configuration information is outputed to the information outlet selector, or, the code channel information of precognition or the code channel activating information of configuration are outputed to the activated code channel information combiner, and, when needs started or utilize the activated code channel detector, log-on message is outputed to the activated code channel detector, and information outputed to the activated code channel information combiner so that the activated code channel detector is incited somebody to action according to a preliminary estimate;
C) code channel information of the activated code channel information combiner precognition that will obtain from the activated code channel decision device or the code channel activating information of configuration merge the estimated information that obtains merging with the information according to a preliminary estimate that obtains from the activated code channel detector, and the estimated information that merges is outputed to the information outlet selector; And,
D) the information outlet selector disposes code channel information according to high level, selects the estimated information of direct configuration information or merging, and selection result is exported as the code channel configuration information.。
Joint receiver of the present invention comprises that a combined detector and above-mentioned activated code channel detect and configurator, this combined detector detects and configurator to activated code channel according to the digital baseband signal delivery channel response estimated information that receives, and, obtain also output user soft bit information according to the code channel configuration information of activated code channel detection with configurator.
Portable terminal of the present invention comprises:
One antenna end is used to receive the wireless signal that arrives portable terminal through space transmission channel;
One radio-frequency front-end is used for the wireless signal that receives is carried out frequency selection, mixing and amplification the output zero intermediate frequency signals;
One analogue baseband processors is used for obtaining analog baseband signal from zero intermediate frequency signals;
One A/D converter is used for analog baseband signal is changed into digital baseband signal;
One RRC filter is used for digital baseband signal is carried out Filtering Processing, obtains filtered digital baseband signal;
One above-mentioned joint receiver;
One decoder, it is converted into the output of user's bit information with user's soft bit information.
The invention has the beneficial effects as follows that the present invention can make joint-detection have application conditions more widely not providing the activated code channel information configuration before the demodulation code channel information, has stronger robustness simultaneously.From the angle that realizes, the present invention has the advantages that complexity is low and be easy to realize.
Description of drawings
The present invention please refer to accompanying drawing described below for further explaining:
Fig. 1 has provided the structure chart of TD-SCDMA portable terminal of the present invention.
Fig. 2 is the structure chart of the joint receiver of TD-SCDMA portable terminal of the present invention, and it has provided the relation of code channel information configuration with joint-detection.
Fig. 3 and Fig. 4 illustration channel estimation window, Kcell value and and user's code channel between relation.
Fig. 5 is the structure chart of activated code channel detection of the present invention and configurator.
Fig. 6 is the structure chart of activated code channel configurator of the present invention.
Fig. 7 has provided the operational flowchart that the activated code channel configurator carries out the code channel configuration.
Fig. 8 illustration the configuration mode of two kinds of code channel activating information.
Embodiment
Figure 1 shows that the structure chart of TD-SCDMA portable terminal of the present invention.This TD-SCDMA portable terminal is applied in the 3-G (Generation Three mobile communication system).
This TD-SCDMA portable terminal comprises that antenna end 101, radio-frequency front-end 102, analogue baseband processors 103, A/D converter 104, RRC (Root-raised Cosine, root raised cosine) filter 105, combined detector 106, activated code channel detect and configurator 107 and decoder 108.
At first being wireless signal arrives the antenna end 101 of portable terminal through space transmission channel, carries out processing such as frequency selection, mixing and amplification, the output zero intermediate frequency signals by the wireless signal of 102 pairs of receptions of radio-frequency front-end.Zero intermediate frequency signals through being used for from zero intermediate frequency signals obtain analog baseband signal analogue baseband processors 103, be used for analog baseband signal changed into and become combined detector 106 behind the A/D converter 104 of digital baseband signal and the RRC filter 105 and activated code channel detects and configurator 107 manageable baseband digital signals, and output to combined detector 106 respectively and activated code channel detects and configurator 107.To obtain user's soft bit information, and user's soft bit information is outputed to decoder 108 through frequency expansion sequence " recovery ", the despreading of wireless channel by combined detector 106.Decode by 108 pairs of user's soft bit informations of decoder, obtain and export final user's bit information.Therefore the TD-SCDMA mobile terminal performance depends primarily on the quality of joint-detection.And the configuration of activated code channel information is most important to joint-detection.
For convenience of description, we are as give a definition " activation " and " un-activation ".If at the work at present time slot, a certain frequency expansion sequence sign indicating number is utilized by the base station, and promptly as a certain physical channel spreading code, we claim the code channel at this frequency expansion sequence sign indicating number place to activate, otherwise are unactivated.
In joint-detection, which code channel activated code channel information will provide is activated, and this is 106 information that must know of combined detector.
In order to further specify joint-detection, see also Fig. 2 to Fig. 4.Fig. 2 has provided the relation of code channel information configuration with joint-detection; Fig. 3 and Fig. 4 illustration channel estimation window, Kcell value and and user's code channel between relation.Here " Kcell " is meant the number of the training sequence (Midamble) of maximum available in the sub-district of working in TD-SCDMA.
Here, we are that example illustrates with a kind of joint detection algorithm-minimum Mean Square Error Linear block balance method (MMSE-BLE).
See also Fig. 2, combined detector 106 at first receives baseband digital signal from RRC filter 105, is a time slot with 864 chips, and it comprises training sequence, data division and protection time slot.Wherein, training sequence is used for the channel response (it has reflected that a user's transmission information experiences wireless transmission feature) of estimating user; data division is used for code channel activating and detects and demodulate user profile, and in the protection slot time, the base station is not send any data.
Combined detector 106 obtains the channel response estimated information according to the baseband digital signal that receives, and outputs it to activated code channel detection and configurator 107.This channel response estimated information not only is used for the generation of sytem matrix, also is used for activated code channel detection etc.
Activated code channel detects some code channel configuration informations of the system that obtains from high level with configurator 107, obtain the channel response estimated information from combined detector 106, and obtain receiving data from RRC filter 105, determine the code channel configuration information according to the method for input then, and the code channel configuration information is exported to combined detector 106.These code channel configuration informations are used for determining which code channel of process in this joint-detection activates, and which code channel is not activated.The code channel that activates will have corresponding convolution vector in sytem matrix.According to this output code channel configuration information, combined detector 106 detects and output user soft bit information.
Here combined detector 106 and activated code channel detection is complementary with configurator 107, and combined detector 106 needs the information of activated code channel configuration, and activated code channel detects the channel response estimated information that also needs combined detector 106 with configurator 107.
The core of joint-detection is sytem matrix, and activated code channel information is the necessary information that this matrix generates.In order more clearly to introduce, at first introduce the relation of channel estimation window and code channel and Kcell.In TD-SCDMA, the method for salary distribution of training sequence has three kinds, is respectively " COMMON ", " DEFAULT " and " SPECIFIC ".
As shown in Figure 3, the COMMON mode is meant the shared training sequence of current all code channels.When the training sequence method of salary distribution (Midamble Allocation) when being COMMON, the channel response window is 128 long windows, and all SF code channel is all corresponding to unique channel impulse response, and SF is meant the length of frequency expansion sequence here.
In Fig. 3, setting the training sequence method of salary distribution is COMMON, and the shared training sequence of then all code channels estimates that the channel response window that obtains is 128 complex sequences.At this moment all SF code channel that is to say corresponding to this channel window, and regardless of the size of Kcell value, the channel impulse response of each code channel all is identical.At this moment having one at least from the code channel of 1～SF activates.
As shown in Figure 4, the DEFAULT mode is meant that SF code channel uses Kcell training sequence.When the training sequence method of salary distribution was DEFAULT, the channel response window was the long window of W point, and W is the maximum positive integer less than 128/Kcell, and all SF code channel is all corresponding to Kcell channel impulse response h
k(k=1,2 ..., Kcell).
In Fig. 4, setting the training sequence method of salary distribution is DEFAULT, and at this moment channel impulse response comprises Kcell theactivewindow at most, according to the TD-SCDMA agreement, and i the corresponding M of theactivewindow
i(i=1,2 ..., Kcell) individual code channel.In Fig. 4, sequence number is from 1～M
1Code channel corresponding to theactivewindow h
1, sequence number is from (M
1+ 1)～(M
1+ M
2) code channel corresponding to theactivewindow h
2, that is to say 1～M
1In have at least a code channel to activate (M
1+ 1)～(M
1+ M
2) in have at least a code channel to activate; And corresponding to un-activation window h
3～h
Kcell(M
1+ M
2+ 1)～SF code channel neither one activates.
See also Fig. 5 to Fig. 8, Fig. 5 is the structure chart of activated code channel detection of the present invention and configurator; Fig. 6 is the structure chart of activated code channel detection with the activated code channel configurator of configurator; Fig. 7 has provided the operational flowchart that the activated code channel configurator carries out the code channel configuration; Fig. 8 illustration the configuration mode of two kinds of code channel activating information.
In Fig. 5, this activated code channel detects with configurator 107 and comprises an activated code channel detector 109 and an activated code channel configurator 110, has a channel estimator 111 in this combined detector 106.
Wherein, channel estimator 111 utilizes training sequence to estimate current radio channel response, obtains the channel response estimated information, and this channel response estimated information is outputed to activated code channel detector 109.
High level that 110 pairs of activated code channel configurators receive configuration code channel information judges, the output that responds according to judgement: (1) output log-on message is to activated code channel detector 109; (2) output code channel configuration information is to combined detector 106.This deterministic process will be described in detail later.
Activated code channel detector 109 is preliminary code channel detectors, is a sniffer that error is arranged.Judge according to certain input criterion whether a certain characteristic signal (refering in particular to frequency expansion sequence here) exists.For example, receive data according to the high level configuration code channel information butt joint of input and carry out matched filtering, and use the channel estimating weighting, can obtain energy corresponding to all frequency expansion sequences, whether the existence that these energy values indicate frequency expansion sequence and obtains preliminary code channel activating information according to certain decision method.For example, can to adopt on May 5th, 2004 disclosed application number be the similar activated code channel detector of detector that the CN03156572.7 application for a patent for invention " is used for detecting the detector of activated code channel number and spreading code thereof " and is disclosed to this activated code channel detector 109.
After the log-on message that receives 110 inputs of activated code channel configurator, this activated code channel detector 109 is according to the reception data that receive, channel response estimated information and high-rise configuration code channel information, obtain information according to a preliminary estimate, and it is outputed to activated code channel configurator 110.
In order further to understand the present invention, see also Fig. 6, wherein, dotted portion is represented activated code channel configurator 110.
Activated code channel configurator 110 comprises an activated code channel decision device 112, an activated code channel information combiner 113 and an information outlet selector 114.
Wherein, activated code channel decision device 112 receives high-rise configuration code channel information, and it is judged.Can carry out following output according to judged result, that is, (1) outputs to information outlet selector 114 with " directly configuration information "; (2) " code channel information of precognition " outputed to activated code channel information combiner 113; (3) " log-on message " outputed to activated code channel detector 109.
" information according to a preliminary estimate " of activated code channel information combiner 113 self-activation in the future code channel detectors 109 and merge from " code channel information of precognition " of activated code channel decision device 112, and " estimated information of merging " outputed to information outlet selector 114.
According to high level configuration code channel information, information outlet selector 114 is selected output " directly configuration information " or " estimated information of merging "." directly configuration information " or " estimated information of merging " are used as the code channel configuration information and output to combined detector 107.
For the above activated code channel configurator 110 of clearer explanation, carry out the detailed description of its operation below with reference to Fig. 6 and Fig. 7.
At first, activated code channel decision device 112 receives high-rise configuration code channel information, and this high level configuration code channel information comprises following three partial informations at least: the training sequence configuration mode; Available activation window, i.e. Kcell value in the work sub-district; And, the length of code channel frequency expansion sequence, i.e. SF value.
Activated code channel decision device 112 at first judges whether SF=1 according to high level configuration code channel information, if SF=1, according to the TD-SCDMA agreement, this moment is spread spectrum not, the current modulated transmission of data that has and have only a code channel, then directly export the information of first code channel activating, promptly " output activates the information of current code channel " among Fig. 7 is to information outlet selector 114 (step 1).At this moment, activated code channel detector 109 is not worked.
If SF ≠ 1 o'clock, i.e. SF〉1 o'clock, check then whether the code channel activating information that can predict is in advance arranged, i.e. " whether the code channel that needs special protection is arranged " among Fig. 7 is if then and with it output to activated code channel information combiner 113 (step 2).
Then, activated code channel decision device 112 training of judgement sequence configuration modes are " COMMON " or " DEFAULT ".If the training sequence configuration mode is " COMMON ", then start activated code channel detector 109, or activated code channel detector 109 often starts, and judge the information of utilizing activated code channel detector 109 this moment, the information according to a preliminary estimate that activated code channel detector 109 produces outputs to activated code channel information combiner 113.Activated code channel information combiner 113 according to the principle of getting union will be according to a preliminary estimate in information and the step 2 code channel information of special protection merge, and the estimated information of merging is defeated by information outlet selector 114 (step 3).
If the training sequence configuration mode is " DEFAULT ", then further judge whether Kcell＜K, here, but K is a preset parameters value, i.e. threshold value, for example 2＜=K＜=16.When Kcell＜K, start activated code channel detector 109, or activated code channel detector 109 often starts, and judges the information of utilizing activated code channel detector 109 this moment, and the information according to a preliminary estimate that activated code channel detector 109 produces outputs to activated code channel information combiner 113.Activated code channel information combiner 113 according to the principle of getting union will be according to a preliminary estimate in information and the step 2 code channel information of special protection merge, and the estimated information of merging is defeated by information outlet selector 114 (step 4).
If the training sequence configuration mode is " DEFAULT ", then further judge whether Kcell＜K, when not satisfying Kcel＜K, or activated code channel detector 109 often starts, and judgement this moment does not utilize the information of activated code channel detector 109, but directly dispose the code channel active informations, and the code channel activating information of configuration is outputed to activated code channel information combiner 113 according to mode shown in Figure 8 one or mode two.Activated code channel information combiner 113 is according to the code channel information merging of the principle of getting union with special protection in code channel activating information and the step 2 of configuration.The code channel information that this merging obtains also can be called " directly configuration information ", is obtained by direct configuration because all be.Activated code channel information combiner 113 is defeated by information outlet selector 114 (step 5) with it.
Information outlet selector 114 receives the estimated information of high-rise configuration code channel information, direct configuration information and merging, and wherein directly the estimated information of configuration information and merging is the code channel configuration information.According to high level configuration code channel information, information outlet selector 114 is selected the estimated information (step 6) of direct configuration information of output and merging.
The code channel activating information configuration mode that Fig. 8 has provided in the step 5 to be followed for example, i.e. mode one and mode two.Mode one is to think corresponding to theactivewindow h
1And h
2Code channel 1～(M
1+ M
2) activate, set condition is " 1 ", and other code channels are unactivated, and set condition is " 0 ".Mode two thinks that current all code channel 1～SF activate, and set condition is " 1 ".
Information outlet selector 114 is selected the estimated information of direct configuration information of output and merging, and these information will output to combined detector 106.According to these information with from the reception data of RRC filter 105, combined detector 106 can obtain the soft Bit data of user, and it is outputed to decoder 108, obtains user data by decoder 108, thereby realizes the Data Receiving of portable terminal.
The present invention combines the work characteristics of TD-SCDMA (TSM and TDD-LCR), its can Do not provide the activated code channel information configuration before the demodulation code channel information, so that joint-detection has more widely Application conditions has stronger robustness simultaneously. From the angle that realizes, it is low that the present invention has complexity With the characteristics that are easy to realize.
Claims (22)
1. an activated code channel detects and configurator, and it comprises an activated code channel detector (109) and an activated code channel configurator (110),
This activated code channel detector (109) obtains information according to a preliminary estimate according to the baseband digital signal that receives, channel response estimated information and high-rise configuration code channel information;
This activated code channel configurator (110) comprises an activated code channel decision device (112), an activated code channel information combiner (113) and an information outlet selector (114), wherein,
Activated code channel decision device (112) is according to the high level configuration code channel information that receives, direct configuration information is outputed to information outlet selector (114), or, the code channel information of precognition or the code channel activating information of configuration are outputed to activated code channel information combiner (113), and, when needs start or utilize activated code channel detector (109), log-on message is outputed to activated code channel detector (109), and information outputs to activated code channel information combiner (113) so that activated code channel detector (109) is incited somebody to action according to a preliminary estimate;
The code channel information of the precognition that activated code channel information combiner (113) will obtain from activated code channel decision device (112) or the code channel activating information of configuration merge the estimated information that obtains merging with the information according to a preliminary estimate that obtains from activated code channel detector (109), and the estimated information that merges is outputed to information outlet selector (114);
Information outlet selector (114) is selected the estimated information of direct configuration information or merging according to high level configuration code channel information, and selection result is exported as the code channel configuration information.
2. activated code channel as claimed in claim 1 detects and configurator, it is characterized in that, this high level configuration code channel information comprises following three partial informations at least:
The training sequence configuration mode, it comprises three kinds of modes, is respectively " COMMON ", " DEFAULT " and " SPECIFIC ";
Available activation window, i.e. Kcell value in the work sub-district;
And the length of code channel frequency expansion sequence, i.e. SF value.
3. activated code channel as claimed in claim 2 detects and configurator, it is characterized in that,
When activated code channel decision device (112) is judged SF=1, direct configuration information is outputed to information outlet selector (114).
4. activated code channel as claimed in claim 2 detects and configurator, it is characterized in that,
When activated code channel decision device (112) is judged SF ≠ 1, i.e. SF〉1 o'clock, then check the code channel activating information whether precognition is arranged, if having, then it is outputed to activated code channel information combiner (113).
5. activated code channel as claimed in claim 4 detects and configurator, it is characterized in that,
When whether the further training of judgement sequence configuration mode of activated code channel decision device (112) is " COMMON ", when the training sequence configuration mode is " COMMON ", start or utilize activated code channel detector (109), make activated code channel detector (109) that the information according to a preliminary estimate of its generation is outputed to activated code channel information combiner (113), activated code channel information combiner (113) according to the principle of getting union will be according to a preliminary estimate the code channel information merging of information and precognition.
6. activated code channel as claimed in claim 4 detects and configurator, it is characterized in that,
When whether the further training of judgement sequence configuration mode of activated code channel decision device (112) is " DEFAULT ", when the training sequence configuration mode is that " DEFAULT " and Kcell are during less than predetermined value K, start or utilize activated code channel detector (109), make activated code channel detector (109) that the information according to a preliminary estimate of its generation is outputed to activated code channel information combiner (113), activated code channel information combiner 113 according to the principle of getting union will be according to a preliminary estimate the code channel information merging of information and precognition.
7. activated code channel as claimed in claim 6 detects and configurator, it is characterized in that this predetermined value K value is 2＜=K＜=16.
8. activated code channel as claimed in claim 4 detects and configurator, it is characterized in that,
When whether the further training of judgement sequence configuration mode of activated code channel decision device (112) is " DEFAULT ", when the training sequence configuration mode is not less than predetermined value K for " DEFAULT " and Kcell, do not start or utilize activated code channel detector (109), and directly dispose the code channel active information according to certain mode, and the code channel activating information of configuration outputed to activated code channel information combiner (113), activated code channel information combiner (113) is according to the code channel information merging of the principle of getting union with code channel activating information and the precognition of configuration.
9. activated code channel as claimed in claim 8 detects and configurator, it is characterized in that this certain mode is: think that the code channel corresponding to theactivewindow activates, other code channels are unactivated.
10. activated code channel as claimed in claim 8 detects and configurator, it is characterized in that this certain mode is: think that current all code channels all are to activate.
11. activated code channel as claimed in claim 8 detects and configurator, it is characterized in that this predetermined value K value is 2＜=K＜=16.
12. joint receiver, it is characterized in that, comprise a combined detector (106) and detect and configurator (107) as each described activated code channel of claim 1-11, this combined detector (106) detects and configurator (107) to activated code channel according to the digital baseband signal delivery channel response estimated information that receives, and, obtain also output user soft bit information according to the code channel configuration information of activated code channel detection with configurator (107).
13. the portable terminal of a wireless communication system, it comprises:
One antenna end (101) is used to receive the wireless signal that arrives portable terminal through space transmission channel;
One radio-frequency front-end (102) is used for the wireless signal that receives is carried out frequency selection, mixing and amplification the output zero intermediate frequency signals;
One analogue baseband processors (103) is used for obtaining analog baseband signal from zero intermediate frequency signals;
One A/D converter (104) is used for analog baseband signal is changed into digital baseband signal;
One RRC filter (105) is used for digital baseband signal is carried out Filtering Processing, obtains filtered digital baseband signal;
One joint receiver obtains and exports user's soft bit information according to filtered digital baseband signal and high-rise code channel configuration information;
One decoder (108), it is converted into the output of user's bit information with user's soft bit information,
It is characterized in that:
This joint receiver is the described joint receiver of claim 12.
14. an activated code channel as claimed in claim 1 detects detection and collocation method with configurator, can produce the code channel configuration information according to the digital baseband signal that receives, high-rise configuration code channel information and channel response estimated information, it may further comprise the steps:
A) activated code channel detector (109) obtains information according to a preliminary estimate according to the baseband digital signal that receives, channel response estimated information and high-rise configuration code channel information;
B) activated code channel decision device (112) is according to the high level configuration code channel information that receives, direct configuration information is outputed to information outlet selector (114), or, the code channel information of precognition or the code channel activating information of configuration are outputed to activated code channel information combiner (113), and, when needs started or utilize activated code channel detector (109), log-on message is outputed to activated code channel detector (109), and information outputed to activated code channel information combiner (113) so that activated code channel detector (109) is incited somebody to action according to a preliminary estimate;
C) code channel information of activated code channel information combiner (113) precognition that will obtain from activated code channel decision device (112) or the code channel activating information of configuration merge the estimated information that obtains merging with the information according to a preliminary estimate that obtains from activated code channel detector (109), and the estimated information that merges is outputed to information outlet selector (114); And,
D) information outlet selector (114) is selected the estimated information of direct configuration information or merging according to high level configuration code channel information, and selection result is exported as the code channel configuration information.
15. detection as claimed in claim 14 and collocation method is characterized in that,
This high level configuration code channel information comprises following three partial informations at least:
The training sequence configuration mode, it comprises three kinds of modes, is respectively " COMMON ", " DEFAULT " and " SPECIFIC ";
Available activation window, i.e. Kcell value in the work sub-district;
And the length of code channel frequency expansion sequence, i.e. SF value.
16. detection as claimed in claim 15 and collocation method is characterized in that,
When judging SF=1, direct configuration information is outputed to information outlet selector (114).
17. detection as claimed in claim 15 and collocation method is characterized in that,
When judging SF ≠ 1, be SF〉1 o'clock, whether activated code channel decision device (112) inspection has the code channel activating information of precognition, if have, then it is outputed to activated code channel information combiner (113), and further whether training of judgement sequence configuration mode is " COMMON ", when the training sequence configuration mode is " COMMON ", start or utilize activated code channel detector (109), make activated code channel detector (109) that the information according to a preliminary estimate of its generation is outputed to activated code channel information combiner (113), activated code channel information combiner (113) according to the principle of getting union will be according to a preliminary estimate the code channel information merging of information and precognition.
18. detection as claimed in claim 15 and collocation method is characterized in that,
When judging SF ≠ 1, be SF〉1 o'clock, whether activated code channel decision device (112) inspection has the code channel activating information of precognition, if have, then it is outputed to activated code channel information combiner (113), and further whether training of judgement sequence configuration mode is " DEFAULT ", when the training sequence configuration mode is that " DEFAULT " and Kcell are during less than predetermined value K, start or utilize activated code channel detector (109), make activated code channel detector (109) that the information according to a preliminary estimate of its generation is outputed to activated code channel information combiner (113), activated code channel information combiner (113) according to the principle of getting union will be according to a preliminary estimate the code channel information merging of information and precognition.
19. detection as claimed in claim 15 and collocation method is characterized in that,
When judging SF ≠ 1, be SF〉1 o'clock, whether activated code channel decision device (112) inspection has the code channel activating information of precognition, if have, then it is outputed to activated code channel information combiner (113), and further whether training of judgement sequence configuration mode is " DEFAULT ", when the training sequence configuration mode is not less than predetermined value K for " DEFAULT " and Kcell, then do not start or utilize activated code channel detector (109) and directly dispose the code channel active information according to certain mode, activated code channel information combiner (113) is according to the code channel information merging of the principle of getting union with code channel activating information with the precognition of configuration.
20. detection as claimed in claim 19 and collocation method is characterized in that, this certain mode is: think that the code channel corresponding to theactivewindow activates, other code channels are unactivated.
21. detection as claimed in claim 19 and collocation method is characterized in that, this certain mode is: think that current all code channels all are to activate.
22., it is characterized in that this predetermined value K value is 2＜=K＜=16 as claim 18 or 19 described detection and collocation methods.
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| CN101335540B (en) * | 2008-08-04 | 2012-07-04 | 北京天碁科技有限公司 | Physical code channel activating detection method and apparatus based on channel estimating postprocessing |
| CN101754328B (en) * | 2008-12-11 | 2011-12-21 | 电信科学技术研究院 | Method, base station and terminal for transmitting and receiving control channel |
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