CN101645722B - System and method for detecting antenna port configuration information - Google Patents
System and method for detecting antenna port configuration information Download PDFInfo
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- CN101645722B CN101645722B CN2008101352619A CN200810135261A CN101645722B CN 101645722 B CN101645722 B CN 101645722B CN 2008101352619 A CN2008101352619 A CN 2008101352619A CN 200810135261 A CN200810135261 A CN 200810135261A CN 101645722 B CN101645722 B CN 101645722B
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Abstract
The invention discloses a system for detecting antenna port configuration information. The system comprises a determining unit, a presetting unit, an extracting unit and a detection implementing unit, wherein the detection implementing unit is used for determining three reference signal sequence copies corresponding to the same local extracting position during mapping at local four antenna ports, and correlating three receiving sequence corresponding to the same extracting position and the corresponding three reference signal sequence copies to implement the detection of the antenna port configuration information. The invention also discloses a method for detecting the antenna port configuration information. The method comprises that the detection implementing unit correlates the three receiving sequence corresponding to the same extracting position and the corresponding three reference signal sequence copies to implement the detection of the antenna port configuration information. By adopting the system and the method, a user terminal can learn the antenna port configuration information before reading a broadcast channel so as to normally demodulate the broadcast channel.
Description
Technical field
The present invention relates to the detection technique of antenna port configuration information, relate in particular to detection system and the method for antenna port configuration information in a kind of Long Term Evolution (LTE) system cell initial ranging process.
Background technology
User terminal (UE) in cell initial searching process, set up and the Time and Frequency Synchronization of residential quarter after, need read broadcast channel (PBCH), obtaining the more information in residential quarter, such as the downlink system bandwidth etc.And in the LTE system, PBCH supports single antenna port emission mode and two kinds of transmission meanss of diversity transmission pattern, supports again the emission of two antenna ports and four antenna ports under the diversity transmission pattern, that is to say that PBCH can be by single, two, four antenna ports emission.
In sum, because PBCH supports many antenna port transmission in the LTE system, just can not as other mobile communication system, directly read PBCH, and need in cell initial searching process, read before the PBCH, measure the antenna port configuration information of PBCH emission in the residential quarter by the UE blind check, to determine that PBCH is on earth by a few antenna port emissions.But, adopt at present prior art, UE can not determine that usually PBCH is launched by several antenna ports, if UE unknown PBCH before reading PBCH uses a few antenna port emissions so actually, normal demodulation PBCH just, thus the more information in residential quarter can't be obtained.That is to say that for the new demand of LTE system be: UE can be known antenna port configuration information before reading PBCH, determining PBCH on earth by several antenna ports emissions, thus normal demodulation PBCH.Yet, the effective solution for this new demand is not arranged at present.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of detection system of antenna port configuration information, make UE before reading PBCH, can know antenna port configuration information, launched by several antenna ports on earth to determine PBCH, thus normal demodulation PBCH.
Main purpose of the present invention is to provide a kind of detection method of antenna port configuration information, makes UE can know antenna port configuration information before reading PBCH, launched by several antenna ports on earth to determine PBCH, thus normal demodulation PBCH.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of detection system of antenna port configuration information, this system comprises: determining unit, pre-set unit, extraction unit and detection realizes the unit; Wherein,
Determining unit is used for the physical resource unit RE position that definite broadcast channel PBCH is mapped to, and sends to the described unit that pre-sets;
Pre-set the unit, be used in RE position that PBCH is mapped to, the RE position that the reference signal of the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the emission of four antenna ports is mapped to, and send to described extraction unit;
Extraction unit, the RE position that the reference signal of antenna port 3 is mapped to when the RE position that the reference signal of antenna port 1 is mapped to when the RE position that the reference signal that is used for launching from described single antenna port respectively is mapped to, the emission of described two antenna ports or the emission of described four antenna ports extracts three corresponding receiving sequences, and sends to respectively described detection realization unit;
Detect and realize the unit, three corresponding reference signal sequence copies of local identical extracting position place when being used for determining local four antenna terminal mapping, it is relevant that three receiving sequences that described identical extracting position place is corresponding and three corresponding reference signal sequence copies are done, and realizes the detection of antenna port configuration information.
Described detection realizes the unit, be further used for take RE position that the reference signal of described single antenna port emission is mapped to as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described first-phase and obtain the first correlation, by described the first correlation the associated gate limit value is set;
The RE position that the reference signal of antenna port 3 is mapped to during take described four antenna ports emission is as the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described second-phase and obtain the second correlation, judge relatively that with described associated gate limit value whether described the second correlation is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by four antenna ports; Otherwise, the RE position that the reference signal of antenna port 1 is mapped to during take described two antenna ports emission is as the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place described third phase, judge relatively that with described associated gate limit value whether described third phase pass value is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by two antenna ports; Otherwise detecting antenna port configuration information is that described PBCH is launched by the single antenna port.
A kind of detection method of antenna port configuration information, the method may further comprise the steps: A, by the timing position of master sync signal in the cell search process, determining unit is determined the RE position that PBCH is mapped to;
B, in the RE position that PBCH is mapped to, the RE position that the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting the unit and pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the reference signal of four antenna ports emission are mapped to;
C, receive reference signal, extraction unit respectively from RE position that the reference signal of described single antenna port emission is mapped to, the reference signal of antenna port 3 is mapped to when the reference signal of antenna port 1 is mapped to during the emission of described two antenna ports RE position or the emission of described four antenna ports RE position extracts three corresponding receiving sequences;
D, three corresponding reference signal sequence copies of local identical extracting position place when determining local four antenna terminal mapping, detect to realize that unit three receiving sequences that described identical extracting position place is corresponding and three corresponding reference signal sequence copies do relevantly, realize the detection of antenna port configuration information.
Among the step D, described detection realization unit will be done and be correlated with to realize that the detection of antenna port configuration information is specially:
The RE position that D1, the reference signal of launching take described single antenna port are mapped to is as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described first-phase and obtain the first correlation, by described the first correlation the associated gate limit value is set;
D2, the reference signal of antenna port 3 is mapped to during take the emission of described four antenna ports RE position are as the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described second-phase and obtain the second correlation, judge relatively that with described associated gate limit value whether described the second correlation is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by four antenna ports, finishes the current detection flow process; Otherwise, change over to and carry out D3;
D3, the reference signal of antenna port 1 is mapped to during take the emission of described two antenna ports RE position are as the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place described third phase, judge relatively that with described associated gate limit value whether described third phase pass value is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by two antenna ports, finishes the current detection flow process; Otherwise detecting antenna port configuration information is that described PBCH is launched by the single antenna port, finishes the current detection flow process.
Among the step D1, the described setting also comprise by coefficient correlation behind the associated gate limit value associated gate limit value revised, among step D2 or the step D3, described relatively judge further with the associated gate limit value be: relatively finish judgement with revised associated gate limit value.
The present invention is based on PBCH and be mapped to the characteristics design of the configuration mode of RE.These characteristics are: PBCH is mapped on the physical resource unit (RE) of middle 72 subcarriers of system bandwidth, and exclude the RE position of reference signal mapping, simultaneously no matter the LTE system actual be the RE position of several antenna ports transmission reference signal all will keep four antenna terminal mapping the time, and the RE position that the not referenced signal of these reservations takies is not used in any data of transmission.Based on these characteristics, because the RE position of reference signal is that the antenna port configuration information of being launched by several antenna ports is corresponding with PBCH on earth, therefore in the RE position that is mapped to PBCH, the RE position of reference signal is cutting point, just can finish the detection of antenna port configuration information.
Adopt the present invention, make UE before reading PBCH, can know antenna port configuration information, launched by several antenna ports on earth to determine PBCH, thus normal demodulation PBCH.
Description of drawings
The schematic diagram of RE mapping when Fig. 1 is single antenna port emission PRCH;
The schematic diagram of RE mapping when Fig. 2 is two antenna ports emission PBCH;
The schematic diagram of RE mapping when Fig. 3 is four antenna ports emission PBCH;
Fig. 4 is the composition structural representation of system of the present invention;
Fig. 5 is the realization flow schematic diagram of the inventive method.
Embodiment
Core concept of the present invention is: the characteristics that are mapped to the configuration mode of RE based on PBCH, because the RE position of reference signal is that the antenna port configuration information of being launched by several antenna ports is corresponding with PBCH on earth, therefore in the RE position that is mapped to PBCH, the RE position of reference signal is cutting point, just can finish the detection of antenna port configuration information.
Be described in further detail below in conjunction with the enforcement of accompanying drawing to technical scheme.
At present, Fig. 1, Fig. 2 or Fig. 3 are respectively: schematic diagram single in the LTE system of fdd mode, RE mapping when two or four ports are launched PBCH.The part of wherein, filling with point off density represents the RE that service signal is mapped to; The part of filling with co-ordination represents the RE that reference signal is mapped to; The part of filling with left oblique line represents the RE that master sync signal is mapped to; The part of filling with right oblique line represents the RE that auxiliary synchronous signals is mapped to; The part of filling with cross hatching represents the RE that the signal map of PBCH arrives; The RE that the signal map of descending other physical channels of part representative of filling with sparse point arrives, descending other physical channels comprise Physical Downlink Control Channel (PDCCH), Physical Control Format Indicator Channel (PCFICH) or physical mixed automatic repeat request indicating channel PHICH; The pre-RE that is used for the mapping reference signal that keeps of remaining blank parts representative is not used in any data of transmission in these RE positions, mainly be for keeping in advance in the RE position that reference signal might occur.The part place lengthwise position of wherein, filling with left oblique line represents the timing position of master sync signal.Mapping for PBCH, can know intuitively that from Fig. 1, Fig. 2 or Fig. 3 PBCH is mapped to the configuration mode of RE, be: when PBCH is mapped to RE, the signal of PBCH takies 72 subcarriers in centre from continuous four OFDMs (OFDM) symbol of #0 to #3 of subframe 0 in four continuous radio frames, and can not be mapped to the RE for the mapping reference signal.That is to say, by list, the emission of two or four antenna ports no matter PBCH is actual, the RE position of the reference signal in the time of all will keeping four antenna terminal mapping in advance, and the RE position that these pre-not referenced signals that keep take can not be used for transmitting other any data, and these keep in advance the RE position and are blank parts among Fig. 1, Fig. 2 or Fig. 3.
The configuration mode that the above-mentioned PBCH of analysis chart 1, Fig. 2 or Fig. 3 is mapped to RE as can be known, the RE position that PBCH is mapped to is 72 subcarriers in centre of shared above-mentioned continuous four the OFDM symbols of signal of PBCH, so with regard to the RE position that PBCH is mapped to, the characteristics of this configuration mode are: keep in advance in the RE position that reference signal might occur, and the RE position that these pre-again not referenced signals that keep take can not be used for transmitting other any data.Characteristics based on this configuration mode, final analysis obtains, the RE position of reference signal is the part that Fig. 1, Fig. 2 or co-ordination shown in Figure 3 are filled, that antenna port configuration information by the emission of several antenna ports is corresponding on earth with PBCH, thereby in the RE position that is mapped to PBCH, the RE position of reference signal is cutting point, has proposed detection system and the method for antenna port configuration information of the present invention.
Below detection system and the method for antenna port configuration information of the present invention is specifically addressed.
As shown in Figure 4, a kind of detection system of antenna port configuration information, this system comprises: this system comprises: determining unit 1, pre-set unit 2, extraction unit 3 and detect and realize unit 4.Wherein, determining unit 1 is used for the physical resource unit RE position of determining that PBCH is mapped to, and sends to and pre-set unit 2.Pre-seting unit 2 is used in RE position that PBCH is mapped to, the RE position that the reference signal of the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the emission of four antenna ports is mapped to, and send to extraction unit 3.The RE position that the reference signal of antenna port 3 is mapped to when the RE position that the reference signal of antenna port 1 is mapped to when the RE position that extraction unit 3 is mapped to for the reference signal of launching from the single antenna port respectively, the emission of two antenna ports or the emission of four antenna ports extracts three corresponding receiving sequences, and sends to respectively detection realization unit 4.Detect three corresponding reference signal sequence copies of local identical extracting position place when realizing unit 4 for definite local four antenna terminal mapping, it is relevant that three receiving sequences that described identical extracting position place is corresponding and three corresponding reference signal sequence copies are done, and realizes the detection of antenna port configuration information.
Wherein, for extraction unit 3, the single antenna port only has antenna port 0, two antenna ports comprise antenna port 0 and antenna port 1, four antenna ports comprise antenna port 0, antenna port 1, antenna port 2 and antenna port 3, extraction unit 3 when extracting receiving sequence during from current antenna port emission last antenna port extract.Such as, current is two antenna ports whens emission, extract be the emission of two antenna ports the time last antenna port, antenna port 1 reference signal be mapped to the receiving sequence of RE position, rather than the receiving sequence that the reference signal of antenna port 0 and antenna port 1 is mapped to the RE position when this moment two antenna ports being launched all extracts.Equally, current is four antenna ports whens emission, extraction be the emission of four antenna ports the time last antenna port, antenna port 3 reference signal be mapped to the receiving sequence of RE position.
Wherein, detect to realize that unit 4 is further used for take RE position that the reference signal of single antenna port emission is mapped to as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described first-phase and obtain the first correlation, by described the first correlation the associated gate limit value is set; The RE position that the reference signal of launching take four antenna ports is mapped to is as the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described second-phase and obtain the second correlation, judge relatively that with described associated gate limit value whether described the second correlation is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by four antenna ports; Otherwise, the RE position that the reference signal of launching take two antenna ports is mapped to is as the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place described third phase, judge relatively that with described associated gate limit value whether described third phase pass value is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by two antenna ports; Otherwise detecting antenna port configuration information is that described PBCH is launched by the single antenna port.
As shown in Figure 5, a kind of detection method of antenna port configuration information, the method may further comprise the steps:
Step 101, by the timing position of master sync signal in the cell search process, determining unit is determined the RE position that PBCH is mapped to.
Here, the RE position that PBCH is mapped to is 72 subcarriers in centre of shared continuous four the OFDM symbols of signal of PBCH, as shown in Fig. 1, Fig. 2 or Fig. 3, the signal of PBCH takies 72 subcarriers in centre from continuous four OFTM symbols of #0 to #3 of subframe 0 in four continuous radio frames.
Step 102, in the RE position that PBCH is mapped to, the RE position that the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting the unit and pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the reference signal of four antenna ports emission are mapped to.
Step 103, receive reference signal, extraction unit respectively from RE position that the reference signal of single antenna port emission is mapped to, the reference signal of antenna port 3 is mapped to when the reference signal of antenna port 1 is mapped to during the emission of two antenna ports RE position or the emission of four antenna ports RE position extracts three corresponding receiving sequences.
Step 104, three corresponding reference signal sequence copies of local identical extracting position place when determining local four antenna terminal mapping, detect to realize that unit three receiving sequences that identical extracting position place is corresponding and three corresponding reference signal sequence copies do relevantly, realize the detection of antenna port configuration information.
Here it is to be noted, transmitting terminal and local reception end are in advance through agreement, the two all knows the position of reference signal and the numerical value of reference signal, therefore, the local reception end can just be determined three corresponding reference signal sequence copies of identical extracting position place in advance, with actual three receiving sequences that receive of identical extracting position place's local reception end in the practical application do relevant, thereby realize the detection of antenna port configuration information.Wherein, the position of reference signal comprises: the RE position that the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to, the emission of two antenna ports is mapped to or the reference signal of four antenna ports emission are mapped to.The numerical value of reference signal refers to for reality receives: three receiving sequences, just know finger for the local reception end in advance by prior agreement: three reference signal sequence copies.And, no matter be to receive for reality, or just know in advance by prior agreement, all be to be the numerical value that the position of identical reference signal obtains corresponding reference signal from identical extracting position.
Here, in the step 104, detect to realize that unit three receiving sequences that identical extracting position place is corresponding and three corresponding reference signal sequence copies do relevantly, realize that the detection of antenna port configuration information is specially:
The RE position that step 1041, the reference signal of launching take the single antenna port are mapped to is as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies first-phase and obtain the first correlation, by the first correlation the associated gate limit value is set.
Here, in the step 1041, arrange and also comprise by coefficient correlation behind the associated gate limit value associated gate limit value is revised, then in subsequent step 1042 or the step 1043, relatively judge further with the associated gate limit value to be: relatively finish judgement with revised associated gate limit value.
Step 1042, the RE position that the reference signal of antenna port 3 is mapped to when launching take four antenna ports are the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies second-phase and obtain the second correlation, judge relatively that with the associated gate limit value whether described the second correlation is greater than the associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by four antenna ports, finishes the current detection flow process; Otherwise, change execution in step 1043 over to.
Step 1043, the RE position that the reference signal of antenna port 1 is mapped to when launching take two antenna ports are the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place third phase, judge relatively that with the associated gate limit value whether described third phase pass value is greater than the associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by two antenna ports, finishes the current detection flow process; Otherwise detecting antenna port configuration information is that PBCH is launched by the single antenna port, finishes the current detection flow process.
In sum, adopt detection method of the present invention, can solve UE in the LTE system since unknown PBCH be can't demodulation PBCH by several antenna ports emissions problem.Detection method of the present invention is simple, operand is little, utilize reference signal to come accuracy in detection high.Simultaneously, detection method of the present invention can be used for the LTE system of fdd mode and the LTE system of tdd mode.
Below lifting an example is specifically addressed testing process of the present invention.
Step 201, determine continuous four OFDM symbols at PBCH place in the radio frames by the timing position of master sync signal in the cell search process, simultaneously these four OFDM symbols are transformed to the RE position that the reference signal of RE position that the reference signal of RE position that the reference signal of frequency domain single antenna port emission when pre-seting four antenna terminal mapping in 72 subcarriers in the middle of determining is mapped to, the emission of two antenna ports is mapped to or the emission of four antenna ports is mapped to through fast fourier transform (FFT).Such as Fig. 1, Fig. 2 or shown in Figure 3.
Step 202, in 72 subcarriers of centre, respectively from RE position that the reference signal of single antenna port emission is mapped to, the reference signal of antenna port 3 is mapped to when the reference signal of antenna port 1 is mapped to during the emission of two antenna ports RE position or the emission of four antenna ports RE position extracts three corresponding receiving sequences.
Here, extract three corresponding receiving sequences because each reference signal interval, antenna port place is 6 RE, therefore the length of three receiving sequences is 72/6=12.Note is that the receiving sequence of the RE position extraction that is mapped to of the reference signal of single antenna port emission is r from antenna port 0
1(k), k=0 ... 11; The receiving sequence that extract the RE position that the reference signal of antenna port 1 is mapped to during from the i.e. two antenna ports emission of antenna port 1 is r
2(k), k=0 ... 11; The receiving sequence that extract the RE position that the reference signal of antenna port 3 was mapped to when note was the emission of two antenna ports from antenna port 3 is r
4(k), k=0 ... 11.
Step 203, three corresponding reference signal sequence copies of local identical extracting position place when UE determines local four antenna terminal mapping.
Here, three reference signal sequence copies are designated as respectively rs
1(k), k=0 ... 11; Rs
2(k), k=0 ... 11; Rs
4(k), k=0 ... 11.
The RE position that step 204, the reference signal that the single antenna port is launched are mapped to is the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies first-phase and obtain the first correlation, by the first correlation the associated gate limit value is set.
Here, doing relevant concrete operations is: the receiving sequence that will extract from antenna port 0 reference signal position is relevant with the reference signal sequence copies of local same position, namely uses r
1(k) and rs
1(k) relevant, obtain the first correlation and be designated as peak
1, and
With peak
1As a dependent threshold reference, by peak
1An associated gate limit value lim_peak is set, such as lim_peak=ρ peak
1, wherein ρ is coefficient correlation, and its value depends on actual emulation and system environments, and span is the positive number between 0 to 1, can be 0.8 or 0.75 etc. such as value.
Step 205, the RE position that the reference signal of antenna port 3 is mapped to when launching take four antenna ports are the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies second-phase and obtain the second correlation, judge relatively that with the associated gate limit value whether described the second correlation is greater than the associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by four antenna ports, finishes the current detection flow process; Otherwise, change execution in step 206 over to.
Here, do relevant concrete operations and be: will be relevant from the reference signal sequence copies of antenna port 3 receiving sequences and local same position, obtain the second correlation
So with peak
4Compare with lim_peak, if peak
4＞lim_peak, just detecting antenna port configuration information is that PBCH is launched by four antenna ports, finishes the current detection flow process; Otherwise just detect antenna port configuration information be: PBCH is launched by the two-port antenna port at most.
Step 206, the RE position that the reference signal of antenna port 1 is mapped to when launching take two antenna ports are the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place third phase, judge relatively that with the associated gate limit value whether described third phase pass value is greater than the associated gate limit value, if greater than, then detecting antenna port configuration information is that PBCH is launched by two antenna ports, finishes the current detection flow process; Otherwise detecting antenna port configuration information is that PBCH is launched by the single antenna port, finishes the current detection flow process.
Here, do relevant concrete operations and be: will be relevant from the reference signal sequence copies of antenna port 1 receiving sequence and local same position, obtain third phase pass value
Take so same judgement and detection technique, if peak
2＞lim_peak, just detecting antenna port configuration information is that PBCH is launched by two antenna ports, finishes the current detection flow process; Otherwise just detect antenna port configuration information and be: PBCH is launched by the single port antenna port.Thereby, finished the detection of antenna configuration information.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (5)
1. the detection system of an antenna port configuration information is characterized in that, this system comprises: determining unit, pre-set unit, extraction unit and detection realizes the unit; Wherein,
Determining unit is used for the physical resource unit RE position that definite Physical Broadcast Channel PBCH is mapped to, and sends to the described unit that pre-sets;
Pre-set the unit, be used in RE position that PBCH is mapped to, the RE position that the reference signal of the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the emission of four antenna ports is mapped to, and send to described extraction unit;
Extraction unit, the RE position that the reference signal of antenna port 3 is mapped to when the RE position that the reference signal of antenna port 1 is mapped to when the RE position that the reference signal that is used for launching from described single antenna port respectively is mapped to, the emission of described two antenna ports or the emission of described four antenna ports extracts three corresponding receiving sequences, and sends to respectively described detection realization unit;
Detect and realize the unit, three corresponding reference signal sequence copies of local identical extracting position place when being used for determining local four antenna terminal mapping, it is relevant that three receiving sequences that described identical extracting position place is corresponding and three corresponding reference signal sequence copies are done, and realizes the detection of antenna port configuration information.
2. system according to claim 1, it is characterized in that, described detection realizes the unit, be further used for take RE position that the reference signal of described single antenna port emission is mapped to as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described first-phase and obtain the first correlation, by described the first correlation the associated gate limit value is set;
The RE position that the reference signal of antenna port 3 is mapped to during take described four antenna ports emission is as the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described second-phase and obtain the second correlation, judge relatively that with described associated gate limit value whether described the second correlation is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by four antenna ports; Otherwise, the RE position that the reference signal of antenna port 1 is mapped to during take described two antenna ports emission is as the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place described third phase, judge relatively that with described associated gate limit value whether described third phase pass value is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by two antenna ports; Otherwise detecting antenna port configuration information is that described PBCH is launched by the single antenna port.
3. the detection method of an antenna port configuration information is characterized in that, the method may further comprise the steps:
A, by the timing position of master sync signal in the cell search process, determining unit is determined the physical resource unit RE position that Physical Broadcast Channel PBCH is mapped to;
B, in the RE position that PBCH is mapped to, the RE position that the RE position that the reference signal of the RE position that the reference signal of single antenna port emission is mapped to when pre-seting the unit and pre-seting four antenna terminal mapping, the emission of two antenna ports is mapped to or the reference signal of four antenna ports emission are mapped to;
C, receive reference signal, extraction unit respectively from RE position that the reference signal of described single antenna port emission is mapped to, the reference signal of antenna port 3 is mapped to when the reference signal of antenna port 1 is mapped to during the emission of described two antenna ports RE position or the emission of described four antenna ports RE position extracts three corresponding receiving sequences;
D, three corresponding reference signal sequence copies of local identical extracting position place when determining local four antenna terminal mapping, detect to realize that unit three receiving sequences that described identical extracting position place is corresponding and three corresponding reference signal sequence copies do relevantly, realize the detection of antenna port configuration information.
4. method according to claim 3 is characterized in that, among the step D, described detection realization unit will be done and be correlated with to realize that the detection of antenna port configuration information is specially:
The RE position that D1, the reference signal of launching take described single antenna port are mapped to is as the same extracting position of first-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described first-phase and obtain the first correlation, by described the first correlation the associated gate limit value is set;
D2, the reference signal of antenna port 3 is mapped to during take the emission of described four antenna ports RE position are as the same extracting position of second-phase, do relevant with corresponding receiving sequence of extracting position place with a corresponding reference signal sequence copies described second-phase and obtain the second correlation, judge relatively that with described associated gate limit value whether described the second correlation is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by four antenna ports, finishes the current detection flow process; Otherwise, change over to and carry out D3;
D3, the reference signal of antenna port 1 is mapped to during take the emission of described two antenna ports RE position are as the same extracting position of third phase, with a corresponding reference signal sequence copies do relevant and acquisition third phase pass value with a corresponding receiving sequence of extracting position place described third phase, judge relatively that with described associated gate limit value whether described third phase pass value is greater than described associated gate limit value, if greater than, then detecting antenna port configuration information is that described PBCH is launched by two antenna ports, finishes the current detection flow process; Otherwise detecting antenna port configuration information is that described PBCH is launched by the single antenna port, finishes the current detection flow process.
5. method according to claim 4, it is characterized in that, among the step D1, the described setting also comprises by coefficient correlation behind the associated gate limit value associated gate limit value revised, among step D2 or the step D3, described and associated gate limit value are relatively judged further and are: relatively finish judgement with revised associated gate limit value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101352619A CN101645722B (en) | 2008-08-05 | 2008-08-05 | System and method for detecting antenna port configuration information |
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| CN2008101352619A CN101645722B (en) | 2008-08-05 | 2008-08-05 | System and method for detecting antenna port configuration information |
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| CN101645722A CN101645722A (en) | 2010-02-10 |
| CN101645722B true CN101645722B (en) | 2013-03-20 |
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| US8611449B2 (en) * | 2010-11-15 | 2013-12-17 | FutureWei Technologes, Inc. | Method and apparatus for demodulation of a reference signal |
| JP5990332B2 (en) | 2012-09-14 | 2016-09-14 | ▲華▼▲為▼終端有限公司Ｈｕａｗｅｉ Ｄｅｖｉｃｅ Ｃｏ．， Ｌｔｄ． | Method and apparatus for establishing mapping between enhanced downlink control channel resource and antenna port |
| WO2014121473A1 (en) * | 2013-02-06 | 2014-08-14 | 华为技术有限公司 | Method and device for transmitting broadcast message |
| CN104363037B (en) * | 2014-12-10 | 2017-10-10 | 重庆邮电大学 | A kind of rapid detection system and method for LTE system antenna port number |
| EP3229390B1 (en) | 2014-12-31 | 2020-09-09 | Huawei Technologies Co., Ltd. | Device, system, and method for signal transmission and detection |
| CN104639492B (en) * | 2015-02-03 | 2018-02-27 | 重庆邮电大学 | A kind of rapid detection system and method for the configuration of TD LTE ascending-descending subframes |
| CN104753641B (en) * | 2015-03-23 | 2018-04-27 | 重庆邮电大学 | A kind of fast resolving method and system of LTE system PBCH channels |
| CN108933641B (en) * | 2017-05-22 | 2022-10-11 | 中兴通讯股份有限公司 | Data sending and processing method and device, network side equipment and terminal |
| CN109391434B (en) * | 2017-08-11 | 2021-11-30 | 中兴通讯股份有限公司 | Reference signal configuration method and device |
| EP3764562A4 (en) * | 2018-04-04 | 2021-05-19 | Huawei Technologies Co., Ltd. | Communication method, communication apparatus, and system |
| CN111315007B (en) | 2018-12-11 | 2022-04-12 | 华为技术有限公司 | Method and device for sending and receiving synchronization signal block |
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| CN1833373A (en) * | 2003-04-03 | 2006-09-13 | 基奥赛拉无线公司 | Antenna diversity system for a mobile telephone |
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