CN104378178A - Transmission method and device for confirming information - Google Patents
Transmission method and device for confirming information Download PDFInfo
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- CN104378178A CN104378178A CN201310359817.3A CN201310359817A CN104378178A CN 104378178 A CN104378178 A CN 104378178A CN 201310359817 A CN201310359817 A CN 201310359817A CN 104378178 A CN104378178 A CN 104378178A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
- H04L1/0073—Special arrangements for feedback channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
Abstract
The invention discloses a transmission method and device for confirming information. The method comprises the steps that after channel coding, modulating and orthogonal spectrum spreading are conducted on ACK/NACK information of uplink data, N*K spread spectrum symbols are obtained, the N*K spread spectrum symbols are mapped into all EPHICH REGs of an EPHICH group after layer mapping and precoding are conducted on the N*K spread spectrum symbols, and the EPHICH group comprises N EPHICH REGs; the EPHICH group is sent. According to the transmission method and device for confirming the information, the ACK/NACK information is transmitted through an EPHICH, and thus the problem that in the prior art, after an NCT is introduced, a corresponding ACK/NACK feedback mechanism is not available is solved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of transmission method and equipment of confirmation.
Background technology
Along with Long Term Evolution strengthens the continuation evolution of (Long Term Evolution-Advanced, LTE-A) standard, introduce new carrier type (New Carrier Type, NCT).Without traditional Physical Downlink Control Channel (Physical Downlink Control Channel in NCT, PDCCH), the Traffic Channel of NCT carrier wave carries out data demodulates based on user-specific reference signal (UE-specific reference signals, UE-specific RS).Owing to not comprising traditional PDCCH in NCT, physical mixed automatic re-transmission indicating channel (Physical HARQ Indicator Channel is not had yet, PHICH), thus the mechanism lacked for the feedback of the correct confirmation/error check (ACK/NACK) of Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH).
For the PUSCH of dynamic dispatching, base station can by Downlink Control Information (the Downlink Control Information to PUSCH scheduling, DCI) new data instruction (the New Data Indicator in, NDI) PUSCH of information field instruction current scheduling is new data or the data of re-transmission, thus by NDI, terminal can judge that whether PUSCH correctly transmits.But for the PUSCH of semi-continuous scheduling (SPS), owing to not needing the transmission of each PUSCH with the schedule information of a PDCCH, thus lack corresponding ACK/NACK feedback mechanism.
Summary of the invention
The object of this invention is to provide a kind of transmission method and equipment of confirmation, after solving introducing NCT, lack the problem of corresponding ACK/NACK feedback mechanism.
The object of the invention is to be achieved through the following technical solutions:
A transmission method for confirmation, comprising:
Carry out chnnel coding to the ACK/NACK information of upstream data, obtain N bit information, N is positive integer;
The modulation that order of modulation is 1 is carried out to this N bit information, obtains N number of modulation symbol;
Successively the orthogonal spectrum expansion that spreading factor is K is carried out to this N number of modulation symbol, obtains N × K spread symbol, K be not less than 2 positive integer;
This N × K spread symbol mapped through layer and be mapped to after precoding processing in each EPHICH resource unit group (REG) of the mixed automatic re-transmission indicating channel group (EPHICH group) that strengthens, an EPHICH group comprises N number of EPHICH REG;
Send above-mentioned EPHICH group.
The method that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
Preferably, above-mentioned N × K spread symbol to be mapped and after precoding processing, the specific implementation be mapped in each EPHICH REG of an EPHICH group can be through layer: K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after layer mapping and precoding processing, the RE be mapped in an EPHICH REG in above-mentioned EPHICH group gathers and the 2nd RE gathers, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
Preferably, above-mentioned K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing, the specific implementation be mapped in an EPHICH REG in above-mentioned EPHICH group can be through layer:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of UE-Specific RS is adopted to carry out precoding to an above-mentioned K spread symbol, then be mapped in a RE set of an EPHICH REG in above-mentioned EPHICH group, in a RE set, comprise K Resource Unit (RE);
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with second antenna port of UE-Specific RS is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of above-mentioned EPHICH REG, in the 2nd RE set, comprise K RE.
Based on above-mentioned any means embodiment, the implementation of the value of its channel coding method, modulation system, spreading factor etc. has multiple, exemplifies wherein several preferred implementation below:
For channel coding method, preferably, repeated encoding is carried out to the ACK/NACK information of upstream data.
For modulation system, preferably, two-phase PSK (BinaryPhaseShiftKeying, BPSK) modulation system is adopted.
For spreading factor K, preferably, spreading factor K is 2, or spreading factor K is 4.
Above several preferred implementation can be adopted to be optimized channel treatment processes, also only can adopt part or wherein a kind of preferred implementation, be optimized to some link (such as chnnel coding, modulation, orthogonal spectrum expansion) in processing procedure new.
Based on above any means embodiment, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, illustrates below:
Preferably, the RE in each RE set of EPHICH REG is positioned at same Physical Resource Block to (PRB pair), and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.Can ensure so each RE gather in RE as far as possible through identical channel, do not destroy the orthogonality of orthogonal sequence.
Wherein, two RE set of each EPHICH REG is positioned at same PRB pair, and time domain can be the same or different, on frequency domain can adjacent also can be non-conterminous.
Preferably, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICH group takies different running time-frequency resources.
Preferably, EPHICH group can in identical PRB pair with the Physical Downlink Control Channel (EPDCCH) of enhancing.
Preferably, for conventional cyclic prefix, above-mentioned first day line cap is demodulated reference signal (Demodulation Reference Signal, DMRS) port one 07, and above-mentioned second antenna port is DMRS port 109; For extended cyclic prefix, above-mentioned first day line cap is DMRS port 107, and above-mentioned second antenna port is DMRS port 108.
It should be pointed out that in force, to the running time-frequency resource that EPHICH takies, above-mentioned all preferred implementations can be adopted, also can adopt the preferred implementation combination of wherein part or a preferred implementation.
The transmission method of another kind of confirmation, comprising:
Receive the mixed automatic re-transmission indicating channel group EPHICH group strengthened, it is positive integer that an EPHICH group comprises N number of EPHICH REG, N;
Carry out the process of precoding demodulation layer demapping in each EPHICH resource unit group REG in described EPHICH group, obtain N × K spread symbol, K be not less than 2 positive integer;
Successively orthogonal dispreading process is frequently carried out to K the spread symbol obtained in each EPHICH REG, obtain N number of modulation symbol;
The demodulation that order of modulation is 1 is carried out to described N number of modulation symbol, obtains N bit information;
Channel-decoding is carried out to described N bit information, obtains the correct confirmation/error check ACK/NACK information of upstream data.
The method that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
Preferably, the specific implementation of carrying out precoding demodulation layer mapping process in each EPHICH resource unit group REG in described EPHICH group can be:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.
Wherein, the predetermined physical resource mapping order that predetermined physical resource mapping order and the transmitting terminal of EPHICH carry out when RE maps is identical.
Preferably, to the specific implementation of carrying out precoding demodulation layer mapping process in an EPHICH REG in described EPHCIH group can be:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
Based on above-mentioned any EPHICH receiving terminal embodiment of the method, preferably, above-mentioned N bit information is repeated encoding in the coded system of EPHICH transmitting terminal.Preferably, described the demodulation that order of modulation is 1 is carried out to described N number of modulation symbol.Preferably, described spreading factor K is 2, or described spreading factor K is 4.
Which kind of preferred implementation of concrete employing or its combination, need to be consistent with EPHICH transmitting terminal.
Based on above-mentioned any EPHICH receiving terminal embodiment of the method, the implementation of the value of its channel coding method, modulation system, spreading factor etc. has multiple, specifically with reference to the description of above-mentioned EPHICH transmitting terminal, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention provides a kind of access network control node, comprising:
Channel coding module, carry out chnnel coding for the correct confirmation to upstream data/error check ACK/NACK information, obtain N bit information, N is positive integer;
Single order modulation module, for carrying out to described N bit information the modulation that order of modulation is 1, obtains N number of modulation symbol;
Orthogonal spectrum expansion module, for carrying out to described N number of modulation symbol the orthogonal spectrum expansion that spreading factor is K successively, obtains N × K spread symbol, K be not less than 2 positive integer;
Layer maps and precoding processing module, for described N × K spread symbol being mapped through layer and being mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICH REG;
Channel sending module, for sending described EPHICH group.
The access network control node that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
The access network control node that the embodiment of the present invention provides, can but be not limited only to be base station, such as, evolved base station (eNB) in LTE network, Home eNodeB (HeNB), micro-base station (Micro), femto base station (Pico) etc. can also be trunkings etc.
Preferably, described layer map and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, the first resource unit R E be mapped in an EPHICH REG in described EPHICH group gathers and the 2nd RE gathers, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, and the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
Preferably, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, when being mapped in an EPHICH REG in described EPHICH group, described layer mapping and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in a RE set of an EPHICH REG in described EPHICH group, in a described RE set, comprise K Resource Unit RE;
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the second antenna port of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of described EPHICH REG, in described 2nd RE set, comprise K RE.
Based on above-mentioned any access network control node embodiment, the implementation of the value of its channel coding method, modulation system, spreading factor etc. has multiple, exemplifies wherein several preferred implementation below:
For channel coding method, preferably, the ACK/NACK information of channel coding module to upstream data carries out repeated encoding.
For modulation system, preferably, single order modulation module adopts BPSK modulation system.
For spreading factor K, preferably, spreading factor K is 2, or spreading factor K is 4.
Above several preferred implementation can be adopted to be optimized channel treatment processes, also only can adopt part or wherein a kind of preferred implementation, be optimized to some link (such as chnnel coding, modulation, orthogonal spectrum expansion) in processing procedure new.
Based on above access network control node embodiment arbitrarily, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, its concrete preferred implementation and performance with reference to the description of said method embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, comprising:
Channel receiver module, for receiving the mixed automatic re-transmission indicating channel group EPHICH group of enhancing, it is positive integer that an EPHICH group comprises N number of EPHICH REG, N;
Precoding demodulation layer mapping block, for carrying out the process of precoding demodulation layer demapping in each the resource unit group REG in described EPHICH group, obtains N × K spread symbol, K be not less than 2 positive integer;
Orthogonal dispreading frequency module, for carrying out orthogonal dispreading process frequently to K the spread symbol obtained in each REG successively, obtains N number of modulation symbol;
Single order demodulation module, for carrying out to described N number of modulation symbol the demodulation that order of modulation is 1, obtains N bit information;
Channel decoding module, for carrying out channel-decoding to described N bit information, obtains the correct confirmation/error check ACK/NACK information of described upstream data.
The terminal that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
Preferably, described precoding demodulation layer mapping block specifically for:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.
Preferably, to carry out in an EPHICH REG in described EPHCIH group precoding demodulation layer map process time, described precoding demodulation layer mapping block specifically for:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
Based on above-mentioned any terminal embodiment, the implementation of the value of its channel coding method, demodulation mode, spreading factor etc. has multiple, exemplifies wherein several preferred implementation below:
For channel-decoding mode, if transmitting terminal is to the ACK/NACK information repeated encoding of upstream data, then the ACK/NACK information of receiving terminal to upstream data carries out corresponding decode operation.
For demodulation mode, if transmitting terminal adopts BPSK modulation system, then receiving terminal adopts BPSK demodulation mode.
For spreading factor K, preferably, spreading factor K is 2, or spreading factor K is 4.
Based on above terminal embodiment arbitrarily, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, and its concrete preferred implementation and performance with reference to the description of said method embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of access network control node, comprises processor and radio frequency unit.
This processor is configured to, and the correct confirmation/error check ACK/NACK information of upstream data is carried out to chnnel coding, obtained N bit information; The modulation that order of modulation is 1 is carried out to described N bit information, obtains N number of modulation symbol; Successively the orthogonal spectrum expansion that spreading factor is K is carried out to described N number of modulation symbol, obtain N × K spread symbol; Described N × K spread symbol mapped through layer and be mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICH REG;
Radio frequency unit is configured to send above-mentioned EPHICH group.
Its specific implementation with reference to the description of above-mentioned access network control node embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, comprises processor and radio frequency unit.
Radio frequency unit is configured to receive the mixed automatic re-transmission indicating channel group EPHICH group strengthened, and an EPHICH group comprises N number of EPHICH REG.
Processor is configured to, and carries out the process of precoding demodulation layer demapping, obtain N × K spread symbol in each the resource unit group REG in described EPHICH group; Successively orthogonal dispreading process is frequently carried out to K the spread symbol obtained in each REG, obtain N number of modulation symbol; The demodulation that order of modulation is 1 is carried out to described N number of modulation symbol, obtains N bit information; Channel-decoding is carried out to described N bit information, obtains the correct confirmation/error check ACK/NACK information of described upstream data.
Its specific implementation with reference to the description of above-mentioned end side embodiment, can repeat no more here.
Accompanying drawing explanation
A kind of method flow diagram that Fig. 1 provides for the embodiment of the present invention;
A kind of signal processing method schematic diagram that Fig. 2 provides for the embodiment of the present invention;
A kind of mapping relations schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The another kind of mapping relations schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The another kind of method flow diagram that Fig. 5 provides for the embodiment of the present invention;
The access network control node schematic diagram that Fig. 6 provides for the embodiment of the present invention;
The terminal schematic diagram that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme that the embodiment of the present invention provides is described in detail.
The transmission method of the confirmation of a kind of access network control node side as shown in Figure 1, specifically comprises following operation:
Step 100, chnnel coding is carried out to the ACK/NACK information of upstream data, obtain N bit information.
Wherein, N is positive integer.Preferably, N be 3 or N be 4.
Channel coding method has multiple, preferably, can carry out repeated encoding to the ACK/NACK information of upstream data.
Step 110, the modulation that order of modulation is 1 is carried out to this N bit information, obtain N number of modulation symbol.
Wherein, as long as order of modulation is the modulation system of 1, the embodiment of the present invention can be applied to.Preferably, BPSK modulation can be carried out to this N bit information.
Step 120, successively the orthogonal spectrum expansion that spreading factor is K is carried out to this N number of modulation symbol, obtain N × K spread symbol.
Wherein, spreading factor be not less than 2 positive integer.Preferably, spreading factor K is 2, or spreading factor K is 4.
In addition, in the embodiment of the present invention, if spreading factor K is 2, when carrying out orthogonal spectrum expansion, the orthogonal spreading sequence of the PHICH in 36.211 under extended cyclic prefix (CP) can be continued to use, specifically as shown in table 1.If spread spectrum chair K is 4, when carrying out orthogonal spectrum expansion, the orthogonal spreading sequence of the PHICH in 36.211 under conventional cyclic prefix (CP) can be continued to use, specifically as shown in table 1.
Table 1
With N=3, K=2 for example, suppose that modulation symbol is N
1n
2n
3, so, the spread symbol obtained after orthogonal spectrum expansion is N
11n
12n
21n
22n
31n
32.Wherein, N
11n
12n
1through the spread symbol that orthogonal spectrum expansion obtains, N
21n
22n
2through the spread symbol that orthogonal spectrum expansion obtains, N
31n
32n
3through the spread symbol that orthogonal spectrum expansion obtains.
Step 130, by this N × K spread symbol through layer map and precoding processing after be mapped in each EPHICH REG of an EPHICH group, an EPHICH group comprises N number of EPHICHREG.
Step 140, send above-mentioned EPHICH group.
The method that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
After it should be pointed out that the embodiment of the present invention is not only applicable to introduce NCT, the feedback of the ACK/NACK information of the PUSCH of SPS, is also applicable to the feedback of the ACK/NACK information of the PUSCH of dynamic dispatching.
The scheme that the embodiment of the present invention provides, carries out the transmission of EPHICH based on 2 antenna ports.Preferably, above-mentioned N × K spread symbol to be mapped and after precoding processing, the specific implementation be mapped in each EPHICH REG of an EPHICHgroup can be through layer: K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol, after layer mapping and precoding processing, is mapped to first resource unit R E set in an EPHICH REG in above-mentioned EPHICHgroup and the 2nd RE gathers.
Wherein, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, and the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
Wherein, predetermined physical resource mapping order can be the ascending order, descending etc. that the EPHICH REG in EPHICH group numbers.
With N=3, K=2, predetermined physical resource mapping order is the ascending order that the EPHICHREG in EPHICH group numbers is example, 2 spread symbol obtained through orthogonal spectrum expansion by first modulation symbol map through layer and after precoding processing, are mapped in first EPHICHREG in above-mentioned EPHICH group; 2 spread symbol obtained through orthogonal spectrum expansion by second modulation symbol map through layer and after precoding processing, are mapped in second EPHICH REG in above-mentioned EPHICH group; 2 spread symbol that 3rd modulation symbol obtains through orthogonal spectrum expansion are mapped through layer and after precoding processing, are mapped in the 3rd EPHICH REG in above-mentioned EPHICH group.
Preferably, above-mentioned K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing, the specific implementation be mapped in an EPHICH REG in above-mentioned EPHICH group can be through layer:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of UE-Specific RS is adopted to carry out precoding to an above-mentioned K spread symbol, then be mapped in a RE set of an EPHICH REG in above-mentioned EPHICH group, in a RE set, comprise K RE;
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with second antenna port of UE-Specific RS is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of above-mentioned EPHICH REG, in the 2nd RE set, comprise K RE.
In the embodiment of the present invention, the first day line cap of transmission UE-Specific RS is called UE-specificRS port R7, second antenna port of transmission UE-Specific RS is called UE-specific RS port R9.
Figure 2 shows that N=3, processing procedure signal during K=2.
In the embodiment of the present invention, the information of two RE set carryings of EPHICH repeats, but the precoding mode of information that one of them RE gathers carrying is identical with the precoding mode of the first day line cap of UE-Specific RS, the precoding mode of information that another RE gathers carrying is identical with the precoding mode of second antenna port of UE-Specific RS.Thus acquisition space diversity gain.
Based on above any means embodiment, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, illustrates below:
Preferably, the RE in each RE set of EPHICH REG is positioned at same Physical Resource Block to (PRB pair), and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.
That is, the RE in each RE set of EPHICH REG is adjacent as far as possible on frequency domain, as shown in Figure 3.The RE that takies of two referenced signals of RE that non-conterminous situation exists only in RE set separates, as shown in Figure 4.Thus ensure each RE gather in RE as far as possible through identical channel, do not destroy the orthogonality of orthogonal sequence.
Wherein, two RE set of each EPHICH REG is positioned at same PRB pair, and time domain can be the same or different, on frequency domain can adjacent also can be non-conterminous.
Preferably, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICH group takies different running time-frequency resources.
Wherein, the EPHICH REG that EPHICH group is disperseed by N number of running time-frequency resource is formed.Preferably can be made up of 3 or 4 EPHICH REG.
Wherein, the EPHICH in same EPHICH group is distinguished by different orthogonal sequences.Different EPHICH group is distinguished by taking different running time-frequency resources.So, the resource instruction of an EPHICH can be realized by two parameters, and a parameter is the numbering of EPHICH place EPHICH group, and another parameter is the index of the orthogonal sequence that EPHICH uses.
Preferably, EPHICH group and EPDCCH in identical PRB pair, thus can reduce the expense of control signal.Because the resource instruction of EPHICH is carried in EPDCCH, therefore, the EPDCCH that EPHICH specifically can indicate with its resource of carrying is in identical PRB pair.Wherein, EPDCCH adopts frequency domain discontinuous (distributed) mode transfer.
Preferably, for conventional cyclic prefix, above-mentioned first day line cap is demodulated reference signal (Demodulation Reference Signal, DMRS) port one 07, and above-mentioned second antenna port is DMRS port 109; For extended cyclic prefix, above-mentioned first day line cap is DMRS port 107, and above-mentioned second antenna port is DMRS port 108.
It should be pointed out that in force, to the running time-frequency resource that EPHICH takies, above-mentioned all preferred implementations can be adopted, also can adopt the preferred implementation combination of wherein part or a preferred implementation.
The transmission method of the confirmation of a kind of end side as shown in Figure 5, specifically comprises following operation:
Step 500, reception EPHICH group, an EPHICH group comprises N number of EPHICHREG.
Wherein, N is positive integer.
Carry out the process of precoding demodulation layer demapping in step 510, each EPHICH REG in above-mentioned EPHICH group, obtain N × K spread symbol.
Wherein, K be not less than 2 positive integer.
Step 520, successively orthogonal dispreading frequently process is carried out to K the spread symbol obtained in each EPHICH REG, obtain N number of modulation symbol.
Step 530, the demodulation that order of modulation is 1 is carried out to this N number of modulation symbol, obtain N bit information.
Step 540, channel-decoding is carried out to this N bit information, obtain the ACK/NACK information of upstream data.
The method that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
The specific implementation of carrying out precoding demodulation layer mapping process in each EPHICH resource unit group REG in described EPHICH group can be:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.So, for terminal, when the information carried in a RE set of each EPHICH REG and the 2nd RE set carries out precoding demodulation, the antenna port of reference is different.
Wherein, the predetermined physical resource mapping order that predetermined physical resource mapping order and the transmitting terminal of EPHICH carry out when RE maps is identical.
There to be 3 EPHICH REG in EPHICH group, K=2, predetermined physical resource mapping order is the ascending order that the EPHICH REG in EPHICH group numbers is example, mapping process to carrying out precoding demodulation layer in first in EPHCIH group, second and the 3rd EPHICH REG successively, from each EPHICH REG, obtaining K spread symbol.
Then, orthogonal dispreading process is frequently carried out to K the spread symbol obtained in first EPHICH REG, obtains modulation symbol N
1, orthogonal dispreading process is frequently carried out to K the spread symbol obtained in second EPHICH REG, obtains modulation symbol N
2, orthogonal dispreading process is frequently carried out to K the spread symbol obtained in the 3rd EPHICH REG, obtains modulation symbol N
3, finally obtain 3 modulation symbol N
1n
2n
3.
Preferably, to the specific implementation of carrying out precoding demodulation layer mapping process in an EPHICH REG in described EPHCIH group can be:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
Based on above-mentioned any EPHICH receiving terminal embodiment of the method, preferably, to described channel-decoding is carried out to described N bit information time, this N bit information is repeated encoding in the coded system of EPHICH transmitting terminal.Preferably, described the demodulation that order of modulation is 1 is carried out to described N number of modulation symbol.Preferably, described spreading factor K is 2, or described spreading factor K is 4.
Which kind of preferred implementation of concrete employing or its combination, need to be consistent with EPHICH transmitting terminal.
Based on above-mentioned any EPHICH receiving terminal embodiment of the method, the implementation of the value of its channel coding method, modulation system, spreading factor etc. has multiple, specifically with reference to the description of above-mentioned EPHICH transmitting terminal, can repeat no more here.
Based on above-mentioned any means embodiment, preferably, each RE set in EPHICH REG comprises two RE.
Based on the inventive concept same with method, the embodiment of the present invention provides a kind of access network control node, as shown in Figure 6, comprising:
Channel coding module 601, carry out chnnel coding for the correct confirmation to upstream data/error check ACK/NACK information, obtain N bit information, N is positive integer;
Single order modulation module 602, for carrying out to described N bit information the modulation that order of modulation is 1, obtains N number of modulation symbol;
Orthogonal spectrum expansion module 603, for carrying out to described N number of modulation symbol the orthogonal spectrum expansion that spreading factor is K successively, obtains N × K spread symbol, K be not less than 2 positive integer;
Layer maps and precoding processing module 604, for described N × K spread symbol being mapped through layer and being mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICHREG;
Channel sending module 605, for sending described EPHICH group.
The access network control node that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
The access network control node that the embodiment of the present invention provides, can but be not limited only to be base station, such as, evolved base station (eNB) in LTE network, Home eNodeB (HeNB), micro-base station (Micro), femto base station (Pico) etc. can also be trunkings etc.
Preferably, described layer map and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, the RE be mapped in an EPHICH REG in described EPHICH group gathers and the 2nd RE gathers, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, and the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
Preferably, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, when being mapped in an EPHICH REG in described EPHICH group, described layer mapping and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in a RE set of an EPHICH REG in described EPHICH group, in a described RE set, comprise K Resource Unit RE;
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the second antenna port of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of described EPHICH REG, in described 2nd RE set, comprise K RE.
Based on above-mentioned any access network control node embodiment, the implementation of the value of its channel coding method, modulation system, spreading factor etc. has multiple, exemplifies wherein several preferred implementation below:
For channel coding method, preferably, the ACK/NACK information of channel coding module to upstream data carries out repeated encoding.
For modulation system, preferably, single order modulation module adopts BPSK modulation system.
For spreading factor K, preferably, spreading factor K is 2, or spreading factor K is 4.
Above several preferred implementation can be adopted to be optimized channel treatment processes, also only can adopt part or wherein a kind of preferred implementation, be optimized to some link (such as chnnel coding, modulation, orthogonal spectrum expansion) in processing procedure new.
Based on above access network control node embodiment arbitrarily, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, its concrete preferred implementation and performance with reference to the description of said method embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, as shown in Figure 7, comprising:
Channel receiver module 701, for receiving the mixed automatic re-transmission indicating channel group EPHICHgroup of enhancing, it is positive integer that an EPHICH group comprises N number of EPHICH REG, N;
Precoding demodulation layer mapping block 702, for carrying out the process of precoding demodulation layer demapping in each EPHICH resource unit group REG in described EPHICH group, obtains N × K spread symbol, K be not less than 2 positive integer;
Orthogonal dispreading frequency module 703, for carrying out orthogonal dispreading process frequently to K the spread symbol obtained in each EPHICH REG successively, obtains N number of modulation symbol;
Single order demodulation module 704, for carrying out to described N number of modulation symbol the demodulation that order of modulation is 1, obtains N bit information;
Channel decoding module 705, for carrying out channel-decoding to described N bit information, obtains the correct confirmation/error check ACK/NACK information of upstream data.
The terminal that the embodiment of the present invention provides, by EPHICH transferring ACK/nack message, thus solves in prior art, after introducing NCT, lacks the problem of corresponding ACK/NACK feedback mechanism.
Preferably, described precoding demodulation layer mapping block specifically for:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.
Preferably, to carry out in an EPHICH REG in described EPHCIH group precoding demodulation layer map process time, described precoding demodulation layer mapping block specifically for:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
Based on above-mentioned any terminal embodiment, the implementation of the value of its channel-decoding mode, demodulation mode, spreading factor etc. has multiple, exemplifies wherein several preferred implementation below:
For channel-decoding mode, if transmitting terminal is to the ACK/NACK information repeated encoding of upstream data, then the ACK/NACK information of receiving terminal to upstream data carries out corresponding decode operation.
For demodulation mode, if transmitting terminal adopts BPSK modulation system, then receiving terminal adopts BPSK demodulation mode.
For spreading factor K, preferably, spreading factor K is 2, or spreading factor K is 4.
Based on above terminal embodiment arbitrarily, the running time-frequency resource that the embodiment of the present invention also takies EPHICH proposes preferred implementation, and its concrete preferred implementation and performance with reference to the description of said method embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of access network control node, comprises processor and radio frequency unit.
This processor is configured to, and the correct confirmation/error check ACK/NACK information of upstream data is carried out to chnnel coding, obtained N bit information; The modulation that order of modulation is 1 is carried out to described N bit information, obtains N number of modulation symbol; Successively the orthogonal spectrum expansion that spreading factor is K is carried out to described N number of modulation symbol, obtain N × K spread symbol; Described N × K spread symbol mapped through layer and be mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICH REG;
Radio frequency unit is configured to send above-mentioned EPHICH group.
Its specific implementation with reference to the description of above-mentioned access network control node embodiment, can repeat no more here.
Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of terminal, comprises processor and radio frequency unit.
Radio frequency unit is configured to receive the mixed automatic re-transmission indicating channel group EPHICH group strengthened, and an EPHICH group comprises N number of EPHICH REG.
Processor is configured to, and carries out the process of precoding demodulation layer demapping, obtain N × K spread symbol in each the resource unit group REG in described EPHICH group; Successively orthogonal dispreading process is frequently carried out to K the spread symbol obtained in each REG, obtain N number of modulation symbol; The demodulation that order of modulation is 1 is carried out to described N number of modulation symbol, obtains N bit information; Channel-decoding is carried out to described N bit information, obtains the correct confirmation/error check ACK/NACK information of described upstream data.
Its specific implementation with reference to the description of above-mentioned end side embodiment, can repeat no more here.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (36)
1. a transmission method for confirmation, is characterized in that, comprising:
Correct confirmation/error check ACK/NACK the information of upstream data is carried out to chnnel coding, obtained N bit information, and described N is positive integer;
The modulation that order of modulation is 1 is carried out to described N bit information, obtains N number of modulation symbol;
Successively the orthogonal spectrum expansion that spreading factor is K is carried out to described N number of modulation symbol, obtains N × K spread symbol, described K be not less than 2 positive integer;
Described N × K spread symbol mapped through layer and be mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICH REG;
Send described EPHICH group.
2. method according to claim 1, is characterized in that, described N × K spread symbol is mapped through layer and is mapped in each EPHICH REG of an EPHICH group after precoding processing, comprising:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, the first resource unit R E be mapped in an EPHICH REG in described EPHICH group gathers and the 2nd RE gathers, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, and the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
3. method according to claim 2, is characterized in that, K the spread symbol that each modulation symbol obtains through orthogonal spectrum expansion is mapped through layer and after precoding processing, is mapped in an EPHICH REG in described EPHICH group, comprises:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in a RE set of an EPHICH REG in described EPHICH group, in a described RE set, comprise K RE;
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the second antenna port of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of described EPHICH REG, in described 2nd RE set, comprise K RE.
4. the method according to any one of claims 1 to 3, is characterized in that, the described ACK/NACK information to upstream data carries out chnnel coding, comprising:
Repeated encoding is carried out to the ACK/NACK information of upstream data.
5. the method according to any one of claims 1 to 3, is characterized in that, describedly carries out to described N bit information the modulation that order of modulation is 1, comprising:
Two-phase PSK BPSK modulation is carried out to described N bit information.
6. the method according to any one of claims 1 to 3, is characterized in that, described spreading factor K is 2, or described spreading factor K is 4.
7. the method according to any one of claims 1 to 3, it is characterized in that, RE in each RE set of EPHICH REG is positioned at same Physical Resource Block to PRB pair, and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.
8. the method according to any one of claims 1 to 3, is characterized in that, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICH group takies different running time-frequency resources.
9. the method according to any one of claims 1 to 3, is characterized in that, the Physical Downlink Control Channel EPDCCH of described EPHICH group and enhancing is in identical PRB pair.
10. the method according to any one of claims 1 to 3, is characterized in that:
For conventional cyclic prefix, described first day line cap is demodulated reference signal DMRS port 107, and described second antenna port is DMRS port 109;
For extended cyclic prefix, described first day line cap is DMRS port 107, and described second antenna port is DMRS port 108.
The transmission method of 11. 1 kinds of confirmations, is characterized in that, comprising:
Receive the mixed automatic re-transmission indicating channel group EPHICH group strengthened, an EPHICH group comprises N number of EPHICH REG, and described N is positive integer;
Carry out the process of precoding demodulation layer demapping in each EPHICH resource unit group REG in described EPHICH group, obtain N × K spread symbol, described K be not less than 2 positive integer;
Successively orthogonal dispreading process is frequently carried out to K the spread symbol obtained in each EPHICH REG, obtain N number of modulation symbol;
The demodulation that order of modulation is 1 is carried out to described N number of modulation symbol, obtains N bit information;
Channel-decoding is carried out to described N bit information, obtains the correct confirmation/error check ACK/NACK information of upstream data.
12. methods according to claim 11, is characterized in that, carry out precoding demodulation layer and map process, comprising in described each EPHICH resource unit group REG in described EPHICH group:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.
13. methods according to claim 12, is characterized in that, mapping process, comprising carrying out precoding demodulation layer in an EPHICH REG in described EPHCIH group:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
14. methods according to any one of claim 11 ~ 13, is characterized in that, described is repeated encoding to described N bit information in the coded system of EPHICH transmitting terminal.
15. methods according to any one of claim 11 ~ 13, is characterized in that, describedly carry out to described N number of modulation symbol the demodulation that order of modulation is 1, comprising:
BPSK demodulation is carried out to described N number of modulation symbol.
16. methods according to any one of claim 11 ~ 13, it is characterized in that, described spreading factor K is 2, or described spreading factor K is 4.
17. methods according to any one of claim 11 ~ 13, it is characterized in that, RE in each RE set of the REG of EPHICH is positioned at same Physical Resource Block to PRB pair, and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.
18. methods according to any one of claim 11 ~ 13, is characterized in that, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICH group takies different running time-frequency resources.
19. methods according to any one of claim 11 ~ 13, is characterized in that, the Physical Downlink Control Channel EPDCCH of described EPHICHgroup and enhancing at identical Physical Resource Block in PRB pair.
20. methods according to any one of claim 11 ~ 13, is characterized in that:
For conventional cyclic prefix, described first day line cap is demodulated reference signal DMRS port 107, and described second antenna port is DMRS port 109;
For extended cyclic prefix, described first day line cap is DMRS port 107, and described second antenna port is DMRS port 108.
21. 1 kinds of access network control nodes, is characterized in that, comprising:
Channel coding module, carry out chnnel coding for the correct confirmation to upstream data/error check ACK/NACK information, obtain N bit information, described N is positive integer;
Single order modulation module, for carrying out to described N bit information the modulation that order of modulation is 1, obtains N number of modulation symbol;
Orthogonal spectrum expansion module, for carrying out to described N number of modulation symbol the orthogonal spectrum expansion that spreading factor is K successively, obtains N × K spread symbol, described K be not less than 2 positive integer;
Layer maps and precoding processing module, for described N × K spread symbol being mapped through layer and being mapped to after precoding processing in each EPHICH resource unit group REG of the mixed automatic re-transmission indicating channel group EPHICH group that strengthens, an EPHICH group comprises N number of EPHICH REG;
Channel sending module, for sending described EPHICH group.
22. access network control nodes according to claim 21, is characterized in that, described layer map and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, the first resource unit R E be mapped in an EPHICH REG in described EPHICH group gathers and the 2nd RE gathers, each EPHICH REG is gathered by a RE and the 2nd RE set is formed, when the information carried in the one RE set of each EPHICH REG and the 2nd RE set carries out precoding, the antenna port of reference is different, and the EPHICH REG be mapped to determines according to predetermined physical resource mapping order.
23. access network control nodes according to claim 22, it is characterized in that, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol to map and after precoding processing through layer, when being mapped in an EPHICH REG in described EPHICH group, described layer map and precoding processing module specifically for:
K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the first day line cap of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in a RE set of an EPHICH REG in described EPHICH group, in a described RE set, comprise K RE;
And, K the spread symbol obtained through orthogonal spectrum expansion by each modulation symbol is after the layer of single port maps, the precoding mode identical with the second antenna port of user-specific reference signal is adopted to carry out precoding to a described K spread symbol, then be mapped in the 2nd RE set of described EPHICH REG, in described 2nd RE set, comprise K RE.
24. access network control nodes according to any one of claim 21 ~ 23, it is characterized in that, described spreading factor K is 2, or described spreading factor K is 4.
25. access network control nodes according to any one of claim 21 ~ 23, it is characterized in that, RE in each RE set of EPHICH REG is positioned at same Physical Resource Block to PRB pair, and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.
26. access network control nodes according to any one of claim 21 ~ 23, is characterized in that, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICHgroup takies different running time-frequency resources.
27. access network control nodes according to any one of claim 21 ~ 23, is characterized in that, the Physical Downlink Control Channel EPDCCH of described EPHICH group and enhancing is in identical PRB pair.
28. access network control nodes according to any one of claim 21 ~ 23, is characterized in that:
For conventional cyclic prefix, described first day line cap is demodulated reference signal DMRS port 107, and described second antenna port is DMRS port 109;
For extended cyclic prefix, described first day line cap is DMRS port 107, and described second antenna port is DMRS port 108.
29. 1 kinds of terminals, is characterized in that, comprising:
Channel receiver module, for receiving the mixed automatic re-transmission indicating channel group EPHICH group of enhancing, an EPHICH group comprises N number of EPHICH REG, and described N is positive integer;
Precoding demodulation layer mapping block, for carrying out the process of precoding demodulation layer demapping in each EPHICH resource unit group REG in described EPHICH group, obtains N × K spread symbol, described K be not less than 2 positive integer;
Orthogonal dispreading frequency module, for carrying out orthogonal dispreading process frequently to K the spread symbol obtained in each EPHICH REG successively, obtains N number of modulation symbol;
Single order demodulation module, for carrying out to described N number of modulation symbol the demodulation that order of modulation is 1, obtains N bit information;
Channel decoding module, for carrying out channel-decoding to described N bit information, obtains the correct confirmation/error check ACK/NACK information of upstream data.
30. terminals according to claim 29, is characterized in that, described precoding demodulation layer mapping block specifically for:
According to predetermined physical resource mapping order, process is mapped to carrying out precoding demodulation layer in each EPHICHREG in described EPHCIH group, K spread symbol is obtained from each EPHICH REG, each EPHICH REG is gathered by a RE and the 2nd RE gathers and forms, and when the information carried during a RE set of each EPHICHREG and the 2nd RE gather carries out precoding, the antenna port of reference is different.
31. terminals according to claim 30, is characterized in that, to carry out in an EPHICH REG in described EPHCIH group precoding demodulation layer map process time, described precoding demodulation layer mapping block specifically for:
After adopting the RE set of the first day line cap of user-specific reference signal to described EPHCIH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K Resource Unit RE in a described RE set;
After adopting the 2nd RE set of the second antenna port of user-specific reference signal to described EPHICH REG to carry out precoding demodulation, the solution layer carrying out single port maps process, comprises K RE in described 2nd RE set;
Precoding demodulation layer mapping from a described RE set and described 2nd RE set is processed the information obtained and carries out merging treatment, obtain K spread symbol.
32. terminals according to any one of claim 29 ~ 31, it is characterized in that, described spreading factor K is 2, or described spreading factor K is 4.
33. terminals according to any one of claim 29 ~ 31, it is characterized in that, RE in each RE set of the REG of EPHICH is positioned at same Physical Resource Block to PRB pair, and identical in time domain, that adjacent or referenced signal takies on frequency domain RE separates.
34. terminals according to any one of claim 29 ~ 31, is characterized in that, multiple EPHICH is multiplexing in same EPHICH group by the mode of orthogonal spectrum expansion, and different EPHICH group takies different running time-frequency resources.
35. terminals according to any one of claim 29 ~ 31, is characterized in that, the Physical Downlink Control Channel EPDCCH of described EPHICHgroup and enhancing at identical Physical Resource Block in PRB pair.
36. terminals according to any one of claim 29 ~ 31, is characterized in that:
For conventional cyclic prefix, described first day line cap is demodulated reference signal DMRS port 107, and described second antenna port is DMRS port 109;
For extended cyclic prefix, described first day line cap is DMRS port 107, and described second antenna port is DMRS port 108.
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| CN201310359817.3A CN104378178B (en) | 2013-08-16 | 2013-08-16 | A kind of transmission method and equipment of confirmation message |
| PCT/CN2014/084495 WO2015021941A1 (en) | 2013-08-16 | 2014-08-15 | Acknowledgement information transmission method and device |
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| 3RD GENERATION PARTNERSHIP PROJECT: "《3GPP TS 36.211 V11.3.0 (2013-06)》", 30 June 2013 * |
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| CN108604960A (en) * | 2015-11-17 | 2018-09-28 | 高通股份有限公司 | Back-to-back reference signal |
| CN108604960B (en) * | 2015-11-17 | 2021-03-26 | 高通股份有限公司 | Back-to-back reference signal |
| CN112332944A (en) * | 2016-03-11 | 2021-02-05 | 苹果公司 | Code division multiplexing of uplink control information |
| CN110603792A (en) * | 2017-05-23 | 2019-12-20 | 华为技术有限公司 | Data transmission method, equipment and system |
| CN112583552A (en) * | 2019-09-29 | 2021-03-30 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
| CN112583552B (en) * | 2019-09-29 | 2022-05-10 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
| CN115211086A (en) * | 2020-03-25 | 2022-10-18 | 华为技术有限公司 | Communication method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104378178B (en) | 2018-09-11 |
| WO2015021941A1 (en) | 2015-02-19 |
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