CN106130700A - A kind of method, device and subscriber equipment detecting the instruction of physics mixed automatic retransfer - Google Patents
A kind of method, device and subscriber equipment detecting the instruction of physics mixed automatic retransfer Download PDFInfo
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- CN106130700A CN106130700A CN201610648902.5A CN201610648902A CN106130700A CN 106130700 A CN106130700 A CN 106130700A CN 201610648902 A CN201610648902 A CN 201610648902A CN 106130700 A CN106130700 A CN 106130700A
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- target component
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- phich
- soft bit
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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
- H04L1/1607—Details of the supervisory signal
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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
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
Abstract
Present disclose provides a kind of method, device and subscriber equipment detecting the instruction of physics mixed automatic retransfer.The method includes: to the inphase quadrature IQ sequence descrambling and de-spreading of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH, it is thus achieved that multiple soft bits；According to the plurality of soft bit, determining target component, described target component changes with the number of soft bit more than zero in the plurality of soft bit and the ratio of number of the soft bit of no more than zero；In the case of described target component is less than the threshold value corresponding with described target component, determine that described network side does not utilizes described PHICH to issue physical mixed autonomous retransmission instruction HI to described UE.UE use the method to be capable of detecting when network side does not utilizes PHICH to issue HI to UE, decrease the interference that other UE is caused or to decrease Stochastic accessing generation time delay the most failed.
Description
Technical field
It relates to communication technical field, in particular it relates to a kind of detect the instruction of physics mixed automatic retransfer method,
Device and subscriber equipment.
Background technology
At LTE (Chinese: Long Term Evolution；English: Long Term Evolution) in system, the lateral UE of network (Chinese:
Subscriber equipment；English: User Equipment) to issue scheduling control information, so that UE knows that network side licenses to the time-frequency of UE
Resource, UE utilizes the running time-frequency resource through network side mandate to carry out transmitting uplink data.
Transmitting uplink data uses HARQ (Chinese: hybrid automatic repeat-request；English: Hybrid Automatic
Repeat reQuest) mechanism.After the lateral UE of network issues scheduling control information, network side can utilize PHICH (Chinese: physics
Mixed automatic re-transmission indicating channel；English: Physical Hybrid-ARQ Indicator Channel) to UE issue HI (in
Literary composition: mixed automatic retransfer indicates；English: Hybrid ARQ Indicator), with feedback network side to be carried on PUSCH (in
Literary composition: Physical Uplink Shared Channel；English: the reception condition of the data on Physical Uplink Shared Channel).Its
In, HI is ACK (Chinese: confirm；English: Acknowledge) or NACK (Chinese: non-acknowledgement；English: Negative
Acknowledge).If HI is ACK, then UE may proceed to transmit new data to network side；If HI is NACK, then UE can be to
Network side retransmits data.
Due to the characteristic of wireless channel, there is network side not in the case of UE issues scheduling control information, UE utilizes
Transmitting uplink data is carried out without the running time-frequency resource of network side mandate.Owing to network side does not issue scheduling control information to UE,
So network side does not utilize PHICH to issue HI to UE, for convenience of statement, herein with DTX (Chinese: discontinuous transmission；English:
Discontinuous Transmission) characterize network side do not utilize PHICH to issue HI to UE.If UE can not correctly detect
DTX, and DTX is resolved to by mistake the NACK in ACK or HI in HI, then the running time-frequency resource without network side mandate can be utilized to continue
Transmit new data or utilize the running time-frequency resource without network side mandate to retransmit data.And UE is utilized without network side mandate
Running time-frequency resource now may be licensed to other UE by network side, therefore, the interference to other UE can be caused.
Additionally, during UE carries out Stochastic accessing, (i.e. UE is to net for the MSG3 that UE is utilized PUSCH to send by network side
The wireless heterogeneous networks that network side sends is set up request or rebuilds request) after successfully decoded, PHICH may not be utilized to issue to UE
ACK, but directly utilize PDSCH (Chinese: Physical Downlink Shared Channel；English: Physical Downlink Shared
Channel) MSG4 (wireless heterogeneous networks that i.e. the lateral UE of network issues is set up or rebuilds order) is issued to UE.Now, if UE
Can not correctly detect DTX, and DTX be resolved to NACK by mistake, then UE can retransmit MSG3, and then misses the reception to MSG4,
The time delay causing Stochastic accessing eventually is the most failed.
Visible, in above-mentioned two situations, it is required to UE and correctly detects that network side does not utilizes PHICH to issue HI to UE, with
Reduce the interference that other UE is caused or minimizing Stochastic accessing generation time delay is the most failed.
Summary of the invention
The purpose of the disclosure is to provide a kind of method, device and subscriber equipment detecting the instruction of physics mixed automatic retransfer,
UE use the method to be capable of detecting when network side does not utilizes PHICH to issue HI to UE, decrease the interference that other UE is caused or
It is the most failed that person decreases Stochastic accessing generation time delay.
Disclosure first aspect provides a kind of method detecting the instruction of physics mixed automatic retransfer, is applied to subscriber equipment
UE, described method includes:
Inphase quadrature IQ sequence descrambling to each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH
Despreading, it is thus achieved that multiple soft bits；
According to the plurality of soft bit, determining target component, described target component is with being more than zero in the plurality of soft bit
The number of soft bit change with the ratio of number of soft bit of no more than zero；
In the case of described target component is less than the threshold value corresponding with described target component, determine that described network side is the most sharp
Physical mixed autonomous retransmission instruction HI is issued to described UE with described PHICH.
Alternatively, described determine target component according to the plurality of soft bit, including:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
Alternatively, described determine target component according to the plurality of soft bit, including:
Determine that described target component, described first formula are according to the first formula or the second formula:
Described second formula is:
Wherein, ratio or N*ratio represents described target component,Represent the arbitrary soft ratio in the plurality of soft bit
Special estimated value, N represents total number of the plurality of soft bit, and n is more than or equal to 0 and the N integer that is less than or equal to, and N is for being more than
Any integer equal to 0.
Alternatively, described in the case of described target component is less than the threshold value corresponding with described target component, determine institute
Stating network side does not utilizes described PHICH to issue HI to described UE, including:
In described target component less than the threshold value corresponding with described target component, and each of carrying on described PHICH
The Signal to Interference plus Noise Ratio SINR that the IQ sequence pair of symbol is answered, more than in the case of predetermined threshold value, determines described network side not
Described PHICH is utilized to issue HI to described UE.
Alternatively, not utilizing described PHICH in the case of described UE issues HI at described network side, described method is also wrapped
Include:
Terminate sending data to described network side.
Alternatively, not utilizing described PHICH in the case of described UE issues HI at described network side, described method is also wrapped
Include:
Receiving the message that described network side utilizes Physical Downlink Shared Channel PDSCH to issue to described UE, described message is used
Set up in wireless heterogeneous networks or rebuild.
Alternatively, described method also includes:
In the case of described target component is not less than the threshold value corresponding with described target component or little at described SINR
In the case of described predetermined threshold value, determine that the lateral described UE of described network issues HI.
Disclosure second aspect provides a kind of device detecting the instruction of physics mixed automatic retransfer, is configured at subscriber equipment
UE, described device includes:
Despreading module, for the homophase of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH
Orthogonal IQ sequence descrambling and de-spreading, it is thus achieved that multiple soft bits；
First determines module, for according to the plurality of soft bit, determines target component, and described target component is with described many
The number of soft bit more than zero and the ratio of number of soft bit of no more than zero in individual soft bit and change；
Second determines module, in the case of in described target component less than the threshold value corresponding with described target component,
Determine that described network side does not utilizes described PHICH to issue physical mixed autonomous retransmission instruction HI to described UE.
Alternatively, described first determine module for:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
Alternatively, described first determine module for:
Determine that described target component, described first formula are according to the first formula or the second formula:
Described second formula is:
Wherein, ratio or N*ratio represents described target component,Represent the arbitrary soft ratio in the plurality of soft bit
Special estimated value, N represents total number of the plurality of soft bit, and n is more than or equal to 0 and the N integer that is less than or equal to, and N is for being more than
Any integer equal to 0.
Alternatively, described second determine module for:
In described target component less than the threshold value corresponding with described target component, and each of carrying on described PHICH
The Signal to Interference plus Noise Ratio SINR that the IQ sequence pair of symbol is answered, more than in the case of predetermined threshold value, determines described network side not
Described PHICH is utilized to issue HI to described UE.
Alternatively, described device also includes:
Control module, for described network side do not utilize described PHICH in the case of described UE issues HI, terminate to
Described network side sends data.
Alternatively, described device also includes:
Receiver module, for not utilizing described PHICH in the case of described UE issues HI at described network side, receives institute
Stating the message that network side utilizes Physical Downlink Shared Channel PDSCH to issue to described UE, described message is used for wireless heterogeneous networks
Set up or rebuild.
Alternatively, described device also includes:
3rd determines module, for being not less than the situation of the threshold value corresponding with described target component in described target component
Under, or in the case of described SINR is not more than described predetermined threshold value, determine that the lateral described UE of described network issues HI.
The disclosure third aspect provides a kind of subscriber equipment, and described subscriber equipment includes:
Processor；
For storing the memorizer of processor executable；
Wherein, described processor is configured to:
Inphase quadrature IQ sequence descrambling to each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH
Despreading, it is thus achieved that multiple soft bits；
According to the plurality of soft bit, determining target component, described target component is with being more than zero in the plurality of soft bit
The number of soft bit change with the ratio of number of soft bit of no more than zero；
In the case of described target component is less than the threshold value corresponding with described target component, determine that described network side is the most sharp
Physical mixed autonomous retransmission instruction HI is issued to described UE with described PHICH.
Use technique scheme, utilize the characteristic that soft bit has: if network side does not utilizes PHICH to issue to UE
HI, the softest bit should present randomness substantially；If network side utilizes PHICH to issue HI to UE, the softest bit should present substantially
Concordance.Can characterize soft bit present randomness or conforming parameter less than threshold value in the case of, determine that network side is not
Utilize PHICH to issue HI to UE, i.e. detect DTX.Owing to threshold value is to be determined, not by wireless channel by the characteristic of soft bit
The impact of complexity, not utilizing PHICH to issue the accuracy of HI to UE so improve detection network side, decreasing other
Interference that UE causes or to decrease Stochastic accessing generation time delay the most failed.
Other feature and advantage of the disclosure will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the disclosure, and constitutes the part of description, with following tool
Body embodiment is used for explaining the disclosure together, but is not intended that restriction of this disclosure.In the accompanying drawings:
Fig. 1 is the schematic diagram of the method for the SPS transmitting uplink data that UE performs；
Fig. 2 is the schematic diagram of the random access procedure of UE；
Fig. 3 is the flow process according to a kind of method detecting the instruction of physics mixed automatic retransfer shown in an exemplary embodiment
Figure；
Fig. 4 is another of method detecting the instruction of physics mixed automatic retransfer according to a kind of shown in an exemplary embodiment
Flow chart；
Fig. 5 is another of method detecting the instruction of physics mixed automatic retransfer according to a kind of shown in an exemplary embodiment
Flow chart；
Fig. 6 is that UE uses the method detecting the instruction of physics mixed automatic retransfer in the disclosure to carry out the mistake of transmitting uplink data
The schematic diagram of journey；
Fig. 7 is that UE uses the method for the detection physics mixed automatic retransfer instruction in the disclosure to carry out the process of Stochastic accessing
Schematic diagram；
Fig. 8 is the frame according to a kind of device detecting the instruction of physics mixed automatic retransfer shown in an exemplary embodiment
Figure；
Fig. 9 is the block diagram according to a kind of subscriber equipment shown in an exemplary embodiment.
Detailed description of the invention
It is described in detail below in conjunction with accompanying drawing detailed description of the invention of this disclosure.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the disclosure, is not limited to the disclosure.
First two kinds of communication scenes common in LTE system are introduced.
The first communication scenes is as follows:
Refer to Fig. 1, Fig. 1 is the SPS (Chinese: semi-persistent scheduling that UE performs；English: Semi-Persistent
Scheduling) schematic diagram of the method for transmitting uplink data.First, UE is at PDCCH (Chinese: Physical Downlink Control Channel；English
Literary composition: receive, on Physical Downlink Control Channel), the uplink authorization (UL that the lateral UE of network issues
GRANT), knowing that network side licenses to the running time-frequency resource of UE by UL GRANT, then UE utilizes the time-frequency through network side mandate
Resource carries out transmitting uplink data.
If network side have modified the running time-frequency resource licensing to UE, but due to the characteristic of wireless channel, UE may receive in leakage
The UL GRANT that the lateral UE of network issues, causes UE to be not known by network side and is modified the running time-frequency resource licensing to UE, and
Continue with unauthorized and carry out transmitting uplink data to the running time-frequency resource of UE.Now, UE is not carried out up due to network side
The running time-frequency resource that data transmission is utilized licenses to UE, so network side also will not utilize PHICH to issue HI to UE.
The second communication scenes is as follows:
Refer to the schematic diagram of the random access procedure that Fig. 2, Fig. 2 are UE.The process of this Stochastic accessing comprises the following steps:
1) UE utilizes PRACH (Chinese: Physical Random Access Channel；English: Physical Random Access
Channel) random access guiding is sent to network side；
2) UE receives the accidental access response that the lateral UE of network issues on PDSCH；
3) UE sends MSG3 to network side on PUSCH.
Wherein, network side, after receiving the MSG3 that UE utilizes PUSCH to send, does not utilize PHICH to issue ACK to UE, and
It is to directly utilize PDSCH to issue MSG4 to UE.
In above two communication scenes, network side does not all utilize PHICH to issue HI to UE.Certainly, in practical situation, net
The situation that network side does not utilizes PHICH to issue HI to UE may be not limited to above two communication scenes, is merely illustrative of at this.
Propose at present a kind of detect the method that network side do not utilizes PHICH to issue HI to UE and is: first, at PHICH
The IQ sequence descrambling and de-spreading of each symbol of upper carrying, it is thus achieved that multiple soft bits.Then the general power of multiple soft bit is obtained, and
The general power of multiple soft bits is compared with predetermined threshold value.If the general power of multiple soft bits is less than predetermined threshold value, then
Determine that network side does not utilizes PHICH to issue HI to UE.
Said method cannot be applicable to the wireless channel of complexity, it is difficult to sets rational threshold value, if threshold value is arranged
, then there is higher flase drop risk in height；If threshold value arranges too low, then there is higher missed detection risk.
Present disclosure proposes a kind of method, device and subscriber equipment detecting the instruction of physics mixed automatic retransfer, UE uses
The method is capable of detecting when that network side does not utilizes PHICH to issue HI to UE, decreases the interference or minimizing causing other UE
Stochastic accessing generation time delay is the most failed.
Refer to Fig. 3, Fig. 3 is to indicate according to a kind of physics mixed automatic retransfer that detects shown in an exemplary embodiment
The flow chart of method.The method comprises the following steps:
Step S31: to the inphase quadrature IQ of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH
Sequence descrambling and de-spreading, it is thus achieved that multiple soft bits；
Step S32: according to the plurality of soft bit, determines target component, and described target component is with the plurality of soft bit
In the number of soft bit more than zero and the ratio of number of soft bit of no more than zero and change；
Step S33: in the case of described target component is less than the threshold value corresponding with described target component, determine described net
Network side does not utilizes described PHICH to issue physical mixed autonomous retransmission instruction HI to described UE.
Wherein, step S31 comprises the steps:
First according to the signal of carrying on PHICH, it is thus achieved that multiple symbols:
y0,y1,y2,……,yN-1
Then, it is thus achieved that the IQ sequence of each symbol:
y0 (0),y0 (1),y1 (0),y1 (1),y2 (0),y2 (1),……,yN-1 (0),yN-1 (1)
Finally, the IQ sequence descrambling and de-spreading to each symbol, it is thus achieved that multiple soft bits:
d0,d1,d2,……,dN-1
The process of the multiple soft bit of above-mentioned acquisition refers to prior art, just repeats no more at this.
Disclosure embodiment has the property that in view of soft bit
If network side does not utilizes PHICH to issue HI to UE, the softest bit should present randomness substantially: i.e. soft more than zero
Bit and no more than zero soft bit occur at random；If network side utilizes PHICH to issue HI to UE, the softest bit should substantially in
Existing concordance: the i.e. number of the number of the soft bit more than the zero soft bit compared to no more than zero is more, or no more than zero
The number of soft bit more compared to the number of the soft bit more than zero.
Therefore, in execution of step S31, it is thus achieved that after multiple soft bits, step S32 is performed, according to the multiple soft ratio obtained
Spy, determines target component, due to target component with in multiple soft bits more than zero soft bit number with no more than zero soft
The ratio of the number of bit and change, so, target component is can to characterize soft bit to present randomness or conforming parameter.
Finally, step S33 is performed, it is necessary first to determine the threshold value corresponding with target component.Owing to step S32 determining
The method of target component is different, so using the target component that different methods is determined corresponding to different threshold values.Use one
The target component that the method for kind is determined is corresponding to a threshold value.Then by threshold ratio corresponding for the target component determined
Relatively, if target component is less than the threshold value corresponding with this target component, it is determined that network side utilizes PHICH to issue HI to UE.
Use technique scheme, utilize soft bit to present randomness or conforming characteristic in varied situations, at energy
Enough characterize soft bit and present randomness or conforming parameter less than in the case of threshold value, determine network side do not utilize PHICH to
UE issues HI, i.e. detects DTX, it is proposed that a kind of detect that network side does not utilizes the method that PHICH issues HI to UE, due to threshold
Value is to be determined by the characteristic of soft bit, is not affected by the complexity of wireless channel, so improve detection network side not
Utilize PHICH to issue the accuracy of HI to UE, decrease the interference that other UE is caused or decrease Stochastic accessing and prolong
Time the most failed.
In a kind of possible embodiment, step S32 includes:
Determine that described target component, described first formula are according to the first formula or the second formula:Described
Second formula is:
Wherein,Representing the estimated value of arbitrary soft bit in the plurality of soft bit, N represents the plurality of soft bit
Total number, n is more than or equal to 0 and the N integer that is less than or equal to, and N is any integer more than or equal to 0.Alternatively, N=12 symbol
Number, thenThe sequence of 12 soft bits of symbol after expression descrambling and de-spreading.
In execution of step S31, it is thus achieved that after multiple soft bits, multiple soft bits are estimated by UE, it is thus achieved that multiple soft
The estimated value of bit:
Compared to multiple soft bit d0,d1,d2,……,dN-1, the estimated value of multiple soft bitsIt is
The value that UE estimates, containing noise, and multiple soft bit d0,d1,d2,……,dN-1It is ideal value, not Noise.
Then according to the first formulaOr second formulaDetermine that target is joined
Number.
If determining target component according to the first formula, then corresponding with target component threshold value is ρ1；If according to
Two formula determine target component, then corresponding with target component threshold value is N ρ1。
For example, N=12, then can be by ρ1It is set to 0.375, correspondingly, N ρ1It is 0.45.
Use technique scheme, determine target component by the first formula or the second formula, target component less than with
In the case of the threshold value of its correspondence, determine that network side does not utilizes PHICH to issue HI to UE, i.e. detect DTX, it is proposed that Yi Zhongjian
Measure the method that network side does not utilizes PHICH to issue HI to UE.
In alternatively possible embodiment, step S32 includes:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
The signal to noise ratio of multiple soft bitsWherein, | d |2Represent signal power, σ2Represent noise power.
According toAndIt follows that
And then ratio and SNR can be drawn
Between exist corresponding relation be:Correspondingly, corresponding for ratio threshold value ρ1The threshold value corresponding with SNR
SNRmaxBetween corresponding relation beTherefore, determine that target component is equivalent to determine many according to the first formula
The signal to noise ratio snr that individual soft bit is corresponding.
For example, at N=12, and by ρ1In the case of being set to 0.375, if ratio is equal to its threshold value ρ1, then
Use technique scheme, it is not necessary to determine target component by the first formula or the second formula, can be by multiple soft
Signal to noise ratio snr corresponding to bit, as target component, in the case of target component is less than corresponding threshold value, determines network
Side does not utilizes PHICH to issue HI to UE, i.e. detects DTX, it is proposed that one detects that network side does not utilizes PHICH to issue to UE
The method of HI.
Alternatively, in order to improve signal to noise ratio snr poor time, the accuracy of above-mentioned testing result, it is possible to use descrambling and de-spreading
SINR (the Chinese: Signal to Interference plus Noise Ratio that front IQ sequence pair is answered；English: Signal to Interference plus
Noise Ratio) carry out assisting detection.If SINR be in a demodulation result incredible under the conditions of, then it is assumed that above-mentioned detection
The credibility of result is the highest；Otherwise, it is believed that the credibility of above-mentioned testing result is higher.Therefore, above-mentioned steps S33 includes:
Step S33 ': in described target component less than the threshold value corresponding with described target component, and hold on described PHICH
The Signal to Interference plus Noise Ratio SINR that the IQ sequence pair of each symbol carried is answered, more than in the case of predetermined threshold value, determines described
Network side does not utilizes described PHICH to issue HI to described UE.
Refer to Fig. 4, Fig. 4 is to indicate according to a kind of physics mixed automatic retransfer that detects shown in an exemplary embodiment
Another flow chart of method.The method includes above-mentioned steps S31, step S32 and step S33 '.
In a kind of possible embodiment, the SINR in step S33 meets below equation:
Wherein,
Wherein, yn (q)Representing an IQ sequence of arbitrary symbol of carrying on described PHICH, q=0 or 1, n are for being more than
Equal to 0 and the N integer that is less than or equal to, N represents total number of the plurality of soft bit, and N is any integer more than or equal to 0, σ2
Represent noise power.
First, the SINR that before UE can determine that descrambling and de-spreading, IQ sequence pair is answered:
Wherein,
For convenience of statement, predetermined threshold value is expressed as ρ2, ρ2Insincere for judging whether SINR is in a demodulation result
Under conditions of, such as: ρ2=0dB.
If using the first formula to determine target component, then at ratio ＜ ρ1And SINR ＞ ρ2In the case of, UE determines net
Network side does not utilizes PHICH to issue HI to UE, i.e. UE detects DTX.If parameter the second formula determines target component, then at N*
Ratio ＜ N ρ1And SINR ＞ ρ2In the case of, UE determines that network side does not utilizes PHICH to issue HI to UE, i.e. UE detects DTX.
If using signal to noise ratio snr corresponding for multiple soft bits as target component, then at SNR ＜ SNRmaxAnd SINR ＞ ρ2In the case of,
UE determines that network side does not utilizes PHICH to issue HI to UE, i.e. UE detects DTX.
Alternatively, refer to Fig. 5, Fig. 5 is automatically to weigh according to a kind of detection physical mixed shown in an exemplary embodiment
Pass another flow chart of the method for instruction.The method is in addition to including above-mentioned steps S31, step S32, and described method also includes:
Step S34: in the case of described target component is not less than the threshold value corresponding with described target component, or described
In the case of SINR is not more than described predetermined threshold value, determine that the lateral described UE of described network issues HI.
Specifically, at ratio >=ρ1Or N*ratio >=N ρ1Or SNR >=SNRmaxIn the case of, or SINR≤ρ2's
In the case of, UE determines that the lateral described UE of network issues HI, and then HI can be resolved by UE, if to the analysis result of HI being
ACK, then UE may proceed to transmit new data to network side；If the analysis result to HI is NACK, then UE can stress to network
Pass data.
Use technique scheme, utilize soft bit to present randomness or concordance in varied situations, and combine solution
Disturb the SINR that answers of IQ sequence pair before despreading, present randomness or conforming parameter less than threshold value soft bit can be characterized, and
SINR, more than in the case of predetermined threshold value, determines that network side does not utilizes PHICH to issue HI to UE, i.e. detects DTX, proposes
A kind of method detecting HI in the case of signal to noise ratio snr is poor, extends the applicable scene of the method for detection HI, improves
The accuracy of the method for detection HI.
Alternatively, refer to Fig. 6, Fig. 6 is that UE uses the method detecting the instruction of physics mixed automatic retransfer in the disclosure to enter
The schematic diagram of the process of row transmitting uplink data.After having performed above-mentioned steps S31-step S33, the most sharp at described network side
With described PHICH in the case of described UE issues HI, UE can also carry out following steps:
Step S35: terminate sending data to described network side.
In the case of the method detection HI that UE uses disclosure embodiment to provide, carry out the mistake of SPS transmitting uplink data
Journey is as follows:
First, UE receives the UL GRANT that the lateral UE of network issues on PDSCH, and then UE utilizes through network side mandate
Running time-frequency resource carries out transmitting uplink data.
Then, network side have modified the running time-frequency resource licensing to UE, but due to the characteristic of wireless channel, UE may receive in leakage
The UL GRANT that the lateral UE of network issues, causes UE to be not known by network side and is modified the running time-frequency resource licensing to UE, and
Continue with unauthorized and carry out transmitting uplink data to the running time-frequency resource of UE.
Then, UE uses the method detection HI that disclosure embodiment provides, if be detected that DTX, then terminates line number on SPS
According to transfer process.Can be prevented effectively from UE utilizes the running time-frequency resource without network side mandate to transmit data, and then causes other UE
Interference；If UE determines that the lateral UE of network issues HI, and the analysis result to HI is ACK, then according to HARQ mechanism, UE can utilize
Continuing, without the running time-frequency resource of network side mandate, the data that transmission is new, passing until terminating SPS upstream data after completing data transmission
Defeated flow process；If UE determines that the lateral UE of network issues HI, and the analysis result to HI is NACK, then according to HARQ mechanism, and UE meeting
The running time-frequency resource without network side mandate is utilized to retransmit data.
Alternatively, refer to Fig. 7, Fig. 7 is the method that UE uses the detection physics mixed automatic retransfer instruction in the disclosure
Carry out the schematic diagram of the process of Stochastic accessing.Described network side do not utilize described PHICH in the case of described UE issues HI,
UE can also carry out following steps:
Step S36: receive the message that described network side utilizes Physical Downlink Shared Channel PDSCH to issue, institute to described UE
State message set up for wireless heterogeneous networks or rebuild.
In the case of the method detection HI that UE uses disclosure embodiment to provide, the process carrying out Stochastic accessing is as follows:
1) UE utilizes PRACH to send random access guiding to network side；
2) UE receives the accidental access response that network side utilizes PDSCH to issue to UE；
3) UE utilizes PUSCH to send MSG3 to network side；
4) UE uses the method detection HI that disclosure embodiment provides, if be detected that DTX, or determine the lateral UE of network
Issue HI, and the analysis result to HI is ACK, then continue with PDSCH and receive MSG4, receive correct rear Stochastic accessing success.
Avoiding DTX flase drop is NACK, causes time delay or the failure of Stochastic accessing；If UE determines network, lateral UE issues HI, and
Analysis result to HI is NACK, then according to HARQ mechanism, UE can utilize PUSCH to retransmit MSG3.
To sum up, on the one hand, UE uses the method for above-mentioned detection HI to carry out SPS transmitting uplink data, and it is right effectively to reduce
The interference of other UE, improves overall throughput.Under VOLTE (i.e. Voice over LTE), if being effectively improved user
Sound quality.On the other hand, UE uses the method for above-mentioned detection HI to carry out Stochastic accessing, can promote the success rate of Stochastic accessing.
Based on same open design, disclosure embodiment also provides for a kind of device detecting mixed automatic retransfer instruction HI,
Being configured at user equipment (UE), it is automatic according to a kind of detection physical mixed shown in an exemplary embodiment for refer to Fig. 8, Fig. 8
Retransmit the block diagram of the device of instruction.As shown in Figure 8, described device 100 includes:
Despreading module 121, for each symbol same of carrying on physical mixed automatic re-transmission indicating channel PHICH
Mutually orthogonal IQ sequence descrambling and de-spreading, it is thus achieved that multiple soft bits；
First determines module 122, for according to the plurality of soft bit, determines target component, and described target component is with institute
State the ratio of the number of the soft bit being more than zero in multiple soft bit and the number of the soft bit of no more than zero and change；
Second determines module 123, for being less than the situation of the threshold value corresponding with described target component in described target component
Under, determine that described network side does not utilizes described PHICH to issue HI to described UE.
Alternatively, described first determine module 122 for:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
Alternatively, described first determine module 122 for:
Determine that described target component, described first formula are according to the first formula or the second formula:
Described second formula is:
Wherein, ratio or N*ratio represents described target component,Represent the arbitrary soft ratio in the plurality of soft bit
Special estimated value, N represents total number of the plurality of soft bit, and n is more than or equal to 0 and the N integer that is less than or equal to, and N is for being more than
Any integer equal to 0.
Alternatively, described second determine module 123 for:
In described target component less than the threshold value corresponding with described target component, and each of carrying on described PHICH
The Signal to Interference plus Noise Ratio SINR that the IQ sequence pair of symbol is answered, more than in the case of predetermined threshold value, determines described network side not
Described PHICH is utilized to issue HI to described UE.
Alternatively, described device also includes:
Control module, for described network side do not utilize described PHICH in the case of described UE issues HI, terminate to
Described network side sends data.
Alternatively, described device also includes:
Receiver module, for not utilizing described PHICH in the case of described UE issues HI at described network side, receives institute
Stating the message that network side utilizes Physical Downlink Shared Channel PDSCH to issue to described UE, described message is used for wireless heterogeneous networks
Set up or rebuild.
Alternatively, described device also includes:
3rd determines module, for being not less than the situation of the threshold value corresponding with described target component in described target component
Under, or in the case of described SINR is not more than described predetermined threshold value, determine that the lateral described UE of described network issues HI.
About the device in above-described embodiment, wherein modules performs the concrete mode of operation in relevant the method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
Fig. 9 is the block diagram according to a kind of subscriber equipment 800 shown in an exemplary embodiment.Such as, subscriber equipment 800 can
To be mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, armarium, strong
Body equipment, personal digital assistant etc..
With reference to Fig. 9, device 900 can include following one or more assembly: processes assembly 902, memorizer 904, electric power
Assembly 906, multimedia groupware 908, audio-frequency assembly 910, the interface 912 of input/output (I/O), sensor cluster 914, and
Communications component 916.
Process assembly 902 and generally control the integrated operation of device 900, such as with display, call, data communication, phase
The operation that machine operation and record operation are associated.Process assembly 902 and can include that one or more processor 920 performs to refer to
Order, to complete all or part of step of the method for above-mentioned detection HI.Can include one or more additionally, process assembly 902
Module, it is simple to process between assembly 902 and other assemblies is mutual.Such as, process assembly 902 and can include multi-media module,
With facilitate multimedia groupware 908 and process between assembly 902 mutual.
Memorizer 904 is configured to store various types of data to support the operation at device 900.Showing of these data
Example includes any application program for operation on device 900 or the instruction of method, contact data, telephone book data, disappears
Breath, picture, video etc..Memorizer 904 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), erasable compile
Journey read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash
Device, disk or CD.
The various assemblies that electric power assembly 906 is device 800 provide electric power.Electric power assembly 906 can include power management system
System, one or more power supplys, and other generate, manage and distribute, with for device 900, the assembly that electric power is associated.
The screen of one output interface of offer that multimedia groupware 908 is included between described device 900 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch screen, to receive the input signal from user.Touch panel includes one or more touch sensing
Device is with the gesture on sensing touch, slip and touch panel.Described touch sensor can not only sense touch or sliding action
Border, but also detect the persistent period relevant to described touch or slide and pressure.In certain embodiments, many matchmakers
Body assembly 908 includes a front-facing camera and/or post-positioned pick-up head.When device 900 is in operator scheme, such as screening-mode or
During video mode, front-facing camera and/or post-positioned pick-up head can receive the multi-medium data of outside.Each front-facing camera and
Post-positioned pick-up head can be a fixing optical lens system or have focal length and optical zoom ability.
Audio-frequency assembly 910 is configured to output and/or input audio signal.Such as, audio-frequency assembly 910 includes a Mike
Wind (MIC), when device 900 is in operator scheme, during such as call model, logging mode and speech recognition mode, mike is joined
It is set to receive external audio signal.The audio signal received can be further stored at memorizer 904 or via communication set
Part 916 sends.In certain embodiments, audio-frequency assembly 910 also includes a speaker, is used for exporting audio signal.
I/O interface 912 provides interface for processing between assembly 902 and peripheral interface module, above-mentioned peripheral interface module can
To be keyboard, put striking wheel, button etc..These buttons may include but be not limited to: home button, volume button, start button and lock
Set button.
Sensor cluster 914 includes one or more sensor, for providing the state of various aspects to comment for device 900
Estimate.Such as, what sensor cluster 914 can detect device 900 opens/closed mode, the relative localization of assembly, such as described
Assembly is display and the keypad of device 900, and sensor cluster 914 can also detect device 900 or 900 1 assemblies of device
Position change, the presence or absence that user contacts with device 900, device 900 orientation or acceleration/deceleration and device 900
Variations in temperature.Sensor cluster 914 can include proximity transducer, is configured to when not having any physical contact detect
The existence of neighbouring object.Sensor cluster 914 can also include optical sensor, such as CMOS or ccd image sensor, is used for becoming
Use as in application.In certain embodiments, this sensor cluster 914 can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure transducer or temperature sensor.
Communications component 916 is configured to facilitate the communication of wired or wireless mode between device 900 and other equipment.Device
900 can access wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.An exemplary enforcement
In example, communications component 916 receives the broadcast singal from external broadcasting management system or broadcast related information via broadcast channel.
In one exemplary embodiment, described communications component 916 also includes near-field communication (NFC) module, to promote junction service.Example
As, can be based on RF identification (RFID) technology in NFC module, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology,
Bluetooth (BT) technology and other technologies realize.
In the exemplary embodiment, device 900 can be by one or more application specific integrated circuits (ASIC), numeral letter
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components realize, for the method performing above-mentioned detection HI.
In the exemplary embodiment, a kind of non-transitory computer-readable recording medium including instruction, example are additionally provided
As included the memorizer 904 of instruction, above-mentioned instruction can have been performed the side of above-mentioned detection HI by the processor 920 of device 900
Method.Such as, described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, magnetic
Band, floppy disk and optical data storage devices etc..
Those skilled in the art, after considering description and putting into practice the disclosure, will readily occur to other embodiment party of the disclosure
Case.The application is intended to any modification, purposes or the adaptations of the disclosure, these modification, purposes or adaptability
Change is followed the general principle of the disclosure and includes the undocumented common knowledge in the art of the disclosure or usual skill
Art means.Description and embodiments is considered only as exemplary, and the true scope of the disclosure and spirit are by claim below
Point out.
It should be appreciated that the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (15)
1. the method detecting the instruction of physics mixed automatic retransfer, it is characterised in that be applied to user equipment (UE), described method
Including:
The inphase quadrature IQ sequence descrambling of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH is solved
Expand, it is thus achieved that multiple soft bits；
According to the plurality of soft bit, determine target component, described target component with in the plurality of soft bit more than zero soft
The number of bit with no more than zero the ratio of number of soft bit and change；
In the case of described target component is less than the threshold value corresponding with described target component, determine that described network side does not utilizes institute
State PHICH and issue physical mixed autonomous retransmission instruction HI to described UE.
Method the most according to claim 1, it is characterised in that described determine target component according to the plurality of soft bit,
Including:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
Method the most according to claim 1, it is characterised in that described determine target component according to the plurality of soft bit,
Including:
Determine that described target component, described first formula are according to the first formula or the second formula:Described
Second formula is:
Wherein, ratio or N*ratio represents described target component,Represent arbitrary soft bit in the plurality of soft bit
Estimated value, N represents total number of the plurality of soft bit, and n is more than or equal to 0 and the N integer that is less than or equal to, and N is more than or equal to 0
Any integer.
4. according to the arbitrary described method of claim 1-3, it is characterised in that described described target component less than and described mesh
In the case of the threshold value that mark parameter is corresponding, determine that described network side does not utilizes described PHICH to issue HI to described UE, including:
In described target component less than the threshold value corresponding with described target component, and each symbol of carrying on described PHICH
The Signal to Interference plus Noise Ratio SINR that answers of IQ sequence pair more than in the case of predetermined threshold value, determine that described network side does not utilizes
Described PHICH issues HI to described UE.
Method the most according to claim 4, it is characterised in that do not utilize described PHICH to described UE at described network side
In the case of issuing HI, described method also includes:
Terminate sending data to described network side.
Method the most according to claim 4, it is characterised in that do not utilize described PHICH to described UE at described network side
In the case of issuing HI, described method also includes:
Receiving the message that described network side utilizes Physical Downlink Shared Channel PDSCH to issue to described UE, described message is used for nothing
Line resources control is set up or is rebuild.
Method the most according to claim 4, it is characterised in that described method also includes:
In the case of described target component is not less than the threshold value corresponding with described target component, or it is not more than institute at described SINR
In the case of stating predetermined threshold value, determine that the lateral described UE of described network issues HI.
8. the device detecting the instruction of physics mixed automatic retransfer, it is characterised in that be configured at user equipment (UE), described device
Including:
Despreading module, for the inphase quadrature of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH
IQ sequence descrambling and de-spreading, it is thus achieved that multiple soft bits；
First determines module, for according to the plurality of soft bit, determines target component, and described target component is with the plurality of soft
The number of soft bit more than zero and the ratio of number of soft bit of no more than zero in bit and change；
Second determines module, in the case of in described target component less than the threshold value corresponding with described target component, determines
Described network side does not utilizes described PHICH to issue physical mixed autonomous retransmission instruction HI to described UE.
Device the most according to claim 8, it is characterised in that described first determine module for:
Determine that the signal to noise ratio snr that the plurality of soft bit is corresponding is described target component.
Device the most according to claim 8, it is characterised in that described first determine module for:
Determine that described target component, described first formula are according to the first formula or the second formula:Described
Second formula is:
Wherein, ratio or N*ratio represents described target component,Represent arbitrary soft bit in the plurality of soft bit
Estimated value, N represents total number of the plurality of soft bit, and n is more than or equal to 0 and the N integer that is less than or equal to, and N is more than or equal to 0
Any integer.
11.-10 arbitrary described devices according to Claim 8, it is characterised in that described second determine module for:
In described target component less than the threshold value corresponding with described target component, and each symbol of carrying on described PHICH
The Signal to Interference plus Noise Ratio SINR that answers of IQ sequence pair more than in the case of predetermined threshold value, determine that described network side does not utilizes
Described PHICH issues HI to described UE.
12. devices according to claim 11, it is characterised in that described device also includes: control module, for described
Network side does not utilizes described PHICH in the case of described UE issues HI, terminates sending data to described network side.
13. devices according to claim 11, it is characterised in that described device also includes:
Receiver module, for not utilizing described PHICH in the case of described UE issues HI at described network side, receives described net
Network side utilizes the message that Physical Downlink Shared Channel PDSCH issues to described UE, and described message is set up for wireless heterogeneous networks
Or rebuild.
14. devices according to claim 11, it is characterised in that described device also includes:
3rd determines module, in the case of in described target component not less than the threshold value corresponding with described target component, or
In the case of described SINR is not more than described predetermined threshold value, determine that the lateral described UE of described network issues HI.
15. 1 kinds of subscriber equipmenies, it is characterised in that described subscriber equipment includes:
Processor；
For storing the memorizer of processor executable；
Wherein, described processor is configured to:
The inphase quadrature IQ sequence descrambling of each symbol of carrying on physical mixed automatic re-transmission indicating channel PHICH is solved
Expand, it is thus achieved that multiple soft bits；
According to the plurality of soft bit, determine target component, described target component with in the plurality of soft bit more than zero soft
The number of bit with no more than zero the ratio of number of soft bit and change；
In the case of described target component is less than the threshold value corresponding with described target component, determine that described network side does not utilizes institute
State PHICH and issue physical mixed autonomous retransmission instruction HI to described UE.
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