CN105072060B - DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel - Google Patents
DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel Download PDFInfo
- Publication number
- CN105072060B CN105072060B CN201510392105.0A CN201510392105A CN105072060B CN 105072060 B CN105072060 B CN 105072060B CN 201510392105 A CN201510392105 A CN 201510392105A CN 105072060 B CN105072060 B CN 105072060B
- Authority
- CN
- China
- Prior art keywords
- pusch
- pucch
- sequences
- sequence
- dtx
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of DTX determination methods, device and the base station of Physical Uplink Control Channel, and this method includes：Base station is in the PUCCH resource uplink signal in the block of the first reception target UE；When determining the PUSCH signals that the second reception is sent to target UE, channel estimation is carried out to uplink signal according to preset algorithm and obtains channel estimation frequency-domain result sequence HPUCCH, and channel estimation is carried out to PUSCH signals according to preset algorithm and obtains channel estimation frequency-domain result sequence HPUSCH, the second moment is before the first moment；According to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, determine the DTX judging results in the first moment target UE.The present invention improves the accuracy of PUCCH channels DTX judgements to a certain extent, and the DTX state of target UE also can be accurately judged even if in more serious environment is disturbed.
Description
Technical field
The present invention relates to the DTX determination methods of field of communication technology more particularly to a kind of Physical Uplink Control Channel, devices
And base station.
Background technology
At present, in Long Term Evolution (Long Term Evolution, LTE) system, when user terminal does not have data in object
When managing Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) transmission, pass through physical uplink and control letter
(Physical Uplink Control Channel, PUCCH) carrys out transmitting uplink control information in road.Wherein, each user terminal
Multiple resource indexes on PUCCH domains are occupied, a RB (Resource Block, resource block) in PUCCH domains occupies 12 sons and carries
Ripple is distributed on two time slots in a subframe, and the sub-carrier positions of each Time Slot Occupancy are different.It is different in same cell
User terminal can occupy the different resource index of same RB, pass through orthogonal code nocWith code cyclic shifts ncsIt is multiplexed.
In the ideal case, it is Time and Frequency Synchronization between user terminal all in LTE cells, passes through time division multiplexing, frequency
Point multiplexing or code division multiplexing can make orthogonal differentiation between the PUCCH signals of each user terminal, and base station can be according to each use
The orthogonal code n that the resource index number of family terminal calculates the position on the T/F of each user terminal and usesoc
With code cyclic shifts ncs, the information that is then carried on the PUCCH channels of isolated each user terminal, including：Just should indeed
Answer instruction (ACKnowledge, ACK), wrong responses instruction (Negative ACKnowledge, NACK), scheduling request
(Scheduling Request, SR) and channel quality indicate (Channel Quality Indicator, CQI).But
Due in practical applications, there is no stringent Time and Frequency Synchronization between all user terminals in a cell, and due to
The form of PUCCH signals only takes up 1 RB, and resolution ratio is very low.In the case that nonsynchronous there are time-frequency, between user terminal
Serious interference.To PUCCH format1 1a 1b carry out discontinuous transmission (Discontinuous Transmission,
When DTX) judging, traditional method is by the average noise power in the signal power on corresponding channel and all noise channels
Ratio compared with default thresholding, if ratio be less than the thresholding, be judged to DTX, be otherwise judged to send data.
However, in the case of intra-cell users terminal serious interference, noise can be caused using traditional DTX determination methods
Power is unreliable, and then affects the judging result of DTX.
The content of the invention
The present invention provides a kind of DTX determination methods, device and the base station of Physical Uplink Control Channel, to solve using biography
The DTX determination methods of system can cause noise power unreliable, and then the problem of affect the judging result of DTX.
A kind of discontinuous transmission DTX determination methods methods of Physical Uplink Control Channel, including：
Base station is in the Physical Uplink Control Channel PUCCH resource uplink signal in the block of the first reception target UE；
When determining the Physical Uplink Shared Channel PUSCH signals that the second reception is sent to the target UE, according to pre-
Imputation method carries out channel estimation to the uplink signal and obtains channel estimation frequency-domain result sequence HPUCCH, and according to the pre- imputation
Method carries out channel estimation to the PUSCH signals and obtains channel estimation frequency-domain result sequence HPUSCH, second moment is described
Before first moment；
According to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines in target UE described in first moment
DTX judging results.
In the method, first moment subtracts result T obtained by second moment within a preset range.
The embodiment of the present invention, base station receives PUCCH uplink signals and the time gap of PUSCH signals is nearer, then mesh
It is higher to mark the degree of correlation of the uplink signal and PUSCH signals in the PUCCH of UE, it is more accurate to the DTX judging results of target UE.
In the method, the preset algorithm is least square method or Minimum Mean Square Error method；The form of the PUCCH is
Format1 or format1a or format1b.
The embodiment of the present invention can also be used other channel estimation methods and carry out channel estimation, and the form of PUCCH is alternatively it
Its form, does not limit here.
In the method, according to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines in the first moment institute
The DTX judging results of target UE are stated, are specifically included：
In a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point increases to and system
Fourier transformation points NFFTIdentical number；
By the sequence H' after zero paddingPUCCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUCCH；
By the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUSCH；
Extract the sequences hPUCCHIn belong to the setting number sampled point of the target UE, composition sequence h'PUCCH；
Since first sampled point, the sequences h is extractedPUSCHIn it is preceding setting number sampled point, composition sequence
h'PUSCH；
According to the sequences h 'PUCCHWith sequences h 'PUSCH, calculate decision content Y；
According to the decision content Y and the comparative result of the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE.
The embodiment of the present invention, by the way that channel estimation frequency-domain result zero padding is converted into time domain sequences, and from result in time domain
Extraction belongs to the sampled point of target UE, decision content Y is calculated using the sampled point of target UE, so as to improve DTX judging results
Accuracy.
In the method, according to the sequences h 'PUCCHAnd sequences h 'PUSCH, decision content Y is calculated, is specifically included：
Determine the sequences h 'PUSCHThe corresponding sampled point of middle peak power the sequences h 'PUSCHIn position number
npeak；
Determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by the position number
npeakAnd with the position number npeakAdjacent position number composition position number set R；
Respectively from the sequences h 'PUCCHWith sequences h 'PUSCHThe corresponding sampled point of middle acquisition setting position sequence number, it is described to set
Determining position number includes all position numbers in the position number set R；
According to sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number, calculate the judgement
Measure Y.
The embodiment of the present invention, selection and the position number where peak power and the position-order adjacent with the position number
Number corresponding sampled point, can be to avoid the interference between target UE and other UE.
In the method, the formula for calculating the decision content Y is as follows：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication,
h'PUCCH(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number
The value of the corresponding sampled points of j.
The embodiment of the present invention, decision content Y embody sequences h 'PUCCHWith sequences h 'PUSCHDegree of correlation, the bigger explanation of Y value
The two degree of correlation is higher, and the higher DTX judging results for showing target UE of degree of correlation are that false possibility is higher.
In the method, the described and position number npeakAdjacent position number is the npeakA position before
Put sequence number npeak- 1 and npeakA n afterwardspeak+1。
The embodiment of the present invention, extraction and power peak position npeakSampled point on closest position, enables to
DTX judging results are more accurate.
In the method, according to the decision content Y and the comparative result of the default DTX threshold values, determine described first
The DTX judging results of target UE described in moment, specifically include：
When determining that the decision content Y is less than the default DTX threshold values, determine in target UE described in first moment
DTX judging results are true；
When determining that the decision content Y is greater than or equal to the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE are false.
The embodiment of the present invention by the amount of will determine that Y compared with default DTX threshold values, determines that the DTX of target UE judges knot
Fruit.
In the method, the window of the user's window as the target UE that sets number is long.
The present invention also provides a kind of discontinuous transmission DTX judgment means of Physical Uplink Control Channel, including：
Receiving unit, in the block in the Physical Uplink Control Channel PUCCH resource of the first reception target UE
Row signal；
First determination unit, for determining Physical Uplink Shared Channel that the second reception is sent to the target UE
During PUSCH signals, channel estimation is carried out to the uplink signal according to preset algorithm and obtains channel estimation frequency-domain result sequence
HPUCCH, and channel estimation is carried out to the PUSCH signals according to the preset algorithm and obtains channel estimation frequency-domain result sequence
HPUSCH, second moment is before first moment；
Second determination unit, for according to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines described first
The DTX judging results of target UE described in moment.
In described device, first moment subtracts result T obtained by second moment within a preset range.
In described device, the preset algorithm is least square method or Minimum Mean Square Error method；The form of the PUCCH is
Format1 or format1a or format1b.
In described device, second determination unit is specifically used for：
In a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point increases to and system
Fourier transformation points NFFTIdentical number；
By the sequence H' after zero paddingPUCCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUCCH；
By the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUSCH；
Extract the sequences hPUCCHIn belong to the setting number sampled point of the target UE, composition sequence h'PUCCH；
Since first sampled point, the sequences h is extractedPUSCHIn it is preceding setting number sampled point, composition sequence
h'PUSCH；
According to the sequences h 'PUCCHWith sequences h 'PUSCH, calculate decision content Y；
According to the decision content Y and the comparative result of the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE.
In described device, second determination unit according to the sequences h 'PUCCHAnd sequences h 'PUSCH, calculate and judge
When measuring Y, it is specifically used for：
Determine the sequences h 'PUSCHThe corresponding sampled point of middle peak power the sequences h 'PUSCHIn position number
npeak；
Determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by the position number
npeakAnd with the position number npeakAdjacent position number composition position number set R；
Respectively from the sequences h 'PUCCHWith sequences h 'PUSCHThe corresponding sampled point of middle acquisition setting position sequence number, it is described to set
Determining position number includes all position numbers in the position number set R；
According to sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number, calculate the judgement
Measure Y.
In described device, second determination unit calculates decision content Y using equation below：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication,
h'PUCCH(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number
The value of the corresponding sampled points of j.
In described device, the described and position number npeakAdjacent position number is the npeakA position before
Put sequence number npeak- 1 and npeakA n afterwardspeak+1。
In described device, second determination unit is in the comparison knot according to the decision content Y and the default DTX threshold values
Fruit determines, in the DTX judging results of target UE described in first moment, to be specifically used for：
When determining that the decision content Y is less than the default DTX threshold values, determine in target UE described in first moment
DTX judging results are true；
When determining that the decision content Y is greater than or equal to the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE are false.
In described device, the window of the user's window as the target UE that sets number is long.
The present invention also provides a kind of base station, the discontinuous transmission DTX including any of the above-described Physical Uplink Control Channel judges
Device.
Using DTX determination methods, device and the base station of Physical Uplink Control Channel provided in an embodiment of the present invention, have with
Lower advantageous effect：Letter by the PUSCH signals for combining the PUCCH resource uplink signal in the block using target UE, target UE
Road estimated result and default DTX threshold values judge the DTX state of target UE, so as to avoid noise work(in the prior art is utilized
Rate judges the mode of DTX, improves the accuracy of PUCCH channels DTX judgements to a certain extent, even if in interference than more serious
Environment in also can accurately judge the DTX state of target UE.
Description of the drawings
Fig. 1 provides Physical Uplink Control Channel DTX determination methods flow charts for the embodiment of the present invention；
Fig. 2 is the DTX judging result flow charts provided in an embodiment of the present invention for determining the first moment target UE；
Fig. 3 is the method flow diagram of calculating decision content Y provided in an embodiment of the present invention；
Fig. 4 is the DTX judging result flow charts provided in an embodiment of the present invention that target UE is determined according to decision content Y；
Fig. 5 is Physical Uplink Control Channel DTX judgment means schematic diagrames provided in an embodiment of the present invention.
Specific embodiment
DTX determination methods to Physical Uplink Control Channel provided by the invention, device with reference to the accompanying drawings and examples
And base station is described in more detail.
The embodiment of the present invention provides a kind of discontinuous transmission DTX determination methods of Physical Uplink Control Channel, such as Fig. 1 institutes
Show, including：
Step 101, base station is in the Physical Uplink Control Channel PUCCH resource uplink in the block of the first reception target UE
Signal.
Specifically, uplink signal of the base station in all UE of the first reception, and extracted from the uplink signal of all UE
The uplink signal carried in the PUCCH resource block of target UE.It may in the uplink signal carried in the PUCCH resource block of target UE
Including PUCCH signals and noise, it is also possible to only include noise.
Step 102, the Physical Uplink Shared Channel PUSCH signals sent in the second reception to the target UE are determined
When, channel estimation is carried out to the uplink signal according to preset algorithm and obtains channel estimation frequency-domain result sequence HPUCCH, and according to
The preset algorithm carries out channel estimation to the PUSCH signals and obtains channel estimation frequency-domain result sequence HPUSCH, described second
Moment is before first moment.
Specifically, preset algorithm can be the algorithm of existing progress channel estimation, such as least square method or minimum
Average variance method.Base station carries out channel estimation to the PUCCH resource of target UE uplink signal in the block, and in the second reception
The PUSCH resources PUSCH signals in the block of the target UE arrived carry out channel estimation.Specifically, all PUCCH according to target UE
Resource indexDMRS (De Modulation Reference Signal, demodulation reference letter in the block to PUCCH resource
Number) do and solve after channel estimation in frequency domain orthogonal, obtain channel estimation frequency-domain result sequence HPUCCH；DMRS in the block to PUSCH resources
Channel estimation in frequency domain is done, obtains PUSCH channel estimation frequency-domain result sequences HPUSCH.Preferably, the first moment was current time.Its
In, sequence HPUCCHMiddle each element (sampled point) is estimated for the signal on each PUCCH resource unit (Resource Element, RE)
Count result；Sequence HPUSCHMiddle each element (sampled point) is the signal estimated result on each PUSCH resource units (RE).
Specifically, second moment before first moment, such as the first moment be the morning 8:00：00, second
Moment is the morning 7:59:00.Preferably, first moment subtract result T obtained by second moment preset range it
It is interior.Since the time gap that base station receives PUCCH uplink signals and PUSCH signals is nearer, then in the PUCCH of target UE
The degree of correlation of uplink signal and PUSCH signals is higher, more accurate to the DTX judging results of target UE, it is preferred that described pre-
If scope is：1ms≤T≤5ms, i.e. preset range are preferably 1ms~5ms, the preset range or other, are not done here
It limits.Base station receives PUCCH uplink signals and the time gap of PUSCH signals is nearer, upper in the PUCCH of that target UE
Row signal and the degree of correlation of PUSCH signals are higher, more accurate to the DTX judging results of target UE.
Step 103, according to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines described in first moment
The DTX judging results of target UE.
Specifically, base station determines the DTX judging results of target UE according to channel estimation results and default DTX threshold values.
Wherein, the big I of DTX threshold values is preset depending on actual application environment, is not limited here.
The embodiment of the present invention, by combining the PUCCH resource uplink signal in the block using target UE, in PUSCH resources
The channel estimation results of PUSCH signals in the block and default DTX threshold values judge the DTX state of target UE, so as to avoid profit
The mode of DTX is judged with noise power in the prior art, improves the accuracy of PUCCH channels DTX judgements to a certain extent,
Even if in more serious environment is disturbed, the embodiment of the present invention also can accurately judge target UE at the first moment
DTX state.
Preferably, the form of the PUCCH is format1 or format1a or format1b.
Preferably, in step 103, according to the sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines described
The DTX judging results of target UE described in first moment, as shown in Fig. 2, specifically including：
Step 201, in a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point increases
To with system Fourier transformation points NFFTIdentical number.
Specifically, by sequence HPUCCHZero padding so that the sequence H' obtained after zero paddingPUCCHIn sampled point number and LTE
The Fourier transformation points N of systemFFTIt is identical, the sequence H' after zero paddingPUCCH=[HPUCCH, 0,0 ..., 0], by the sequence after zero padding
Arrange H'PUCCHIt carries out Fourier transformation and obtains the shock response sequence h of time domain PUCCH channelsPUCCH；By sequence HPUSCHZero padding so that
The sequence H' obtained after zero paddingPUSCHIn the number of sampled point and the Fourier transformation points N of LTE systemFFTIt is identical, after zero padding
Sequence H'PUSCH=[HPUSCH, 0,0 ..., 0], by the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain PUSCH
The shock response sequence h of channelPUSCH.By sequence H in the embodiment of the present inventionPUCCHAnd sequence HPUSCHThe number of middle sampled point increases
It adds to and NFFTIdentical number is a kind of preferred embodiment, also can be respectively by the sequence HPUCCHAnd sequence HPUSCHIn
The number of sampled point increases to other and NFFTThe different number of number, do not limit here.Channel can be increased by zero padding
The sample rate of estimation, while also premise is provided for the follow-up decision content Y that calculates.Wherein, the mode of zero padding can be both sides zero padding,
It can be unilateral zero padding, not limit here.
Step 202, by the sequence H' after zero paddingPUCCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUCCH。
Specifically, since the PUCCH resource of target UE uplink signal in the block is to be sent to base station by PUCCH channels
, therefore, sequence HPUCCHIt is for PUCCH channels.When base station receives the uplink signal that target UE is sent through PUCCH channels,
Noise can be also received, what these noises were from target UE may also be not from target UE, but base station will be considered that this
A little noises are from target UE's.Sequences hPUCCHIn each position number of sampled point (element) in the sequence be non-zero
Positive integer, minimum position number are 1.
Step 203, by the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUSCH。
Sequences hPUSCHIn each position number of sampled point (element) in the sequence be non-zero positive integer, minimum position
Put serial number 1.
Step 204, the sequences h is extractedPUCCHIn belong to the setting number sampled point of the target UE, composition sequence
h'PUCCH。
Specifically, due to sequences hPUCCHIt is by the sequence H' after zero paddingPUCCHCarry out what Fourier transformation obtained, after zero padding
Sequence H'PUCCHSome middle possible sampled points are the sampled points for being not belonging to the target UE, it is therefore desirable to from sequences hPUCCHIn carry
Take the setting number sampled point for belonging to the target UE.The sampled point for determining and being extracted of specific setting number is in sequence
Arrange hPUCCHIn position number can according to user's window P=[i, i+1 ..., i+L-1] of target UE determine, i.e., according to the target
Scheduling parameter (the resource index number of UEWith resource index interval) calculate user's window P=of the target UE
[i, i+1 ..., i+L-1] sets total number (window the is long) L of number as the corresponding element of user's window of the target UE, the user
Each element in window is to belong to the sampled point of the target UE in time domain in sequences hPUCCHMiddle position number, for example, target
A length of 3, the i of user's window window of UE is equal to 4, then, setting number is exactly 3, from sequences hPUCCHOn middle extraction position number 4,5,6
Sampled point.
In user's window P=[i, i+1 ..., i+L-1], L is that the window of user's window is long, and i is sequences hPUCCHIn belong to the target
Corresponding initial position sequence number, the calculation formula of i are as follows in the sequence for the sampled point of UE：
Wherein, NFFTRepresent the Fourier transformation points of LTE system, ncsRepresent the code of the target UE
Cyclic shifts, wherein, ncsAccording to the scheduling parameter resource index number of target UEIt is calculated, specific calculation is
Existing way, which is not described herein again.
The calculation formula of the long L of window is：Wherein, NFFTRepresent the Fourier transformation points of LTE system.
Such as NFFT=2048, ncs=2, then
Step 205, since first sampled point, the sequences h is extractedPUSCHIn it is preceding setting number sampled point, form
Sequences h 'PUSCH。
Specifically, sequences hPUSCHIn all sampled points all belong to the target UE, since the impact of UE is rung
The foremost portion for belonging to the sampled point orientation of this user, therefore abstraction sequence of embodiment of the present invention h should be generally present inPUSCHIn
Preceding setting number sampled point, in order to ensure with sequences h 'PUCCHIn sampled point number it is identical, abstraction sequence hPUSCHIn
Preceding L sampled point, i.e. since first sampled point, abstraction sequence hPUSCHIn first to l-th sampled point, form sequence
Arrange h'PUSCH。
Step 206, according to the sequences h 'PUCCHWith sequences h 'PUSCH, calculate decision content Y.
Specifically, according to the sampled point shock response sequence for belonging to the target UE in time domain, calculate target UE's
Decision content Y.
Step 207, according to the decision content Y and the comparative result of the default DTX threshold values, determine at first moment
The DTX judging results of the target UE.
The embodiment of the present invention, by the way that channel estimation frequency-domain result zero padding is converted into time domain sequences, and from result in time domain
Extraction belongs to the sampled point of target UE, decision content Y is calculated using the sampled point of target UE, so as to improve DTX judging results
Accuracy.
Preferably, in step 206, according to the sequences h 'PUCCHAnd h'PUSCHDecision content Y is calculated, as shown in figure 3, tool
Body includes：
Step 301, determine the sequences h 'PUSCHIn the corresponding sampled point of peak power the sequences h 'PUSCHIn
Position number npeak。
Specifically, sequences h 'PUSCHIn each sampled point correspond to a position number, these sequence numbers are suitable according to from small to large
Sequence arrange (positive integer of serial number non-zero), minimum position number be 1, from sequences h 'PUSCHIn first sampled point start, root
Power P w is calculated according to the value of sampled point, rating formula is：Pw=| h'PUSCH(m)|2, wherein m for sequences h 'PUSCHIn appoint
One sampled point, h'PUSCH(m) for sequences h 'PUSCHIn m-th of sampled point value；Determine the maximum in all power calculated
The corresponding sampled point of (peak value) performance number sequences h 'PUSCHIn position number npeak。
Step 302, determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by described in
Position number npeakAnd with the position number npeakAdjacent position number composition position number set R.
It specifically, can be according to the descending order composition position number set R of position number.
Step 303, respectively from the sequences h 'PUCCHWith sequences h 'PUSCHIt is middle to obtain the corresponding sampling of setting position sequence number
Point, the setting position sequence number include all position numbers in the position number set R.
Specifically, the time delay between UE is different, the position number where peak power is also different, selection and peak power institute
The corresponding sampled point of position number and the position number adjacent with the position number, can be to avoid target UE and other UE
Between interference.
Preferably, with the position number npeakAdjacent sequence number is respectively npeak- 1 and npeak+ 1, i.e. position number
npeakA position number n beforepeak- 1 and position number npeakA position number n afterwardspeak+ 1, position-order at this time
Number set R={ npeak-1,npeak,npeak+1}.Extraction and power peak position npeakSampled point on closest position,
Enable to DTX judging results more accurate.
Step 304, according to the sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number,
Calculate the decision content Y.
Specifically, the formula for calculating the decision content Y is as follows：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication,
h'PUCCH(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number
The value of the corresponding sampled points of j.
The embodiment of the present invention, decision content Y embody sequences h 'PUCCHWith sequences h 'PUSCHDegree of correlation, the bigger explanation of Y value
The two degree of correlation is higher, and the higher DTX judging results for showing target UE of degree of correlation are that false possibility is higher.
Specifically, according to the decision content Y and the comparative result of the default DTX threshold values, determine at first moment
The DTX judging results of the target UE, as shown in figure 4, specifically including：
Step 401, judge whether Y is less than default DTX threshold values, if so, performing step 402, otherwise, perform step 403.
Step 402, determine that it is true to be in DTX state judging result in target UE described in first moment.
Specifically, when the DTX judging results for determining target UE are true, determine that the target UE is in DTX state, i.e. institute
It states in the Physical Uplink Control Channel PUCCH resource block of target UE without carrying PUCCH signals, only carries noise signal.
Step 403, determine to judge that response results are false in the DTX of target UE described in first moment.
Specifically, determine that the DTX judging results of target UE for fictitious time, determine that the target UE is not at DTX state, i.e.
PUCCH signals are carried in the Physical Uplink Control Channel PUCCH resource block of the target UE.
The embodiment of the present invention by the amount of will determine that Y compared with default DTX threshold values, determines that the DTX of target UE judges knot
Fruit.Default DTX threshold values can be set according to actual conditions, and not limited here.
Discontinuous transmission DTX determination methods based on the Physical Uplink Control Channel provided with above-described embodiment are similarly sent out
Bright design, the embodiment of the present invention also provides a kind of discontinuous transmission DTX judgment means of Physical Uplink Control Channel, such as Fig. 5 institutes
Show, including：
Receiving unit 501, in the block in the Physical Uplink Control Channel PUCCH resource of the first reception target UE
Uplink signal；
First determination unit 502, for determining that the second reception shares letter to the target UE physical uplinks sent
During road PUSCH signals, channel estimation is carried out to the uplink signal according to preset algorithm and obtains channel estimation frequency-domain result sequence
HPUCCH, and channel estimation is carried out to the PUSCH signals according to the preset algorithm and obtains channel estimation frequency-domain result sequence
HPUSCH, second moment is before first moment；
Second determination unit 503, for according to sequence HPUCCH, sequence HPUSCHAnd default DTX threshold values, it determines described
The DTX judging results of target UE described in first moment.
Preferably, first moment subtracts result T obtained by second moment within a preset range, the default model
Enclose preferably 1ms~5ms.
Preferably, the preset algorithm is least square method or Minimum Mean Square Error method；The form of the PUCCH is
Format1 or format1a or format1b.
Preferably, in described device, second determination unit is specifically used for：
In a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point increases to and system
Fourier transformation points NFFTIdentical number；
By the sequence H' after zero paddingPUCCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUCCH；
By the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUSCH；
Extract the sequences hPUCCHIn belong to the setting number sampled point of the target UE, composition sequence h'PUCCH；
Since first sampled point, the sequences h is extractedPUSCHIn it is preceding setting number sampled point, composition sequence
h'PUSCH；
According to the sequences h 'PUCCHWith sequences h 'PUSCH, calculate decision content Y；
According to the decision content Y and the comparative result of the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE.
Preferably, in described device, second determination unit according to the sequences h 'PUCCHAnd sequences h 'PUSCH,
When calculating decision content Y, it is specifically used for：
Determine the sequences h 'PUSCHThe corresponding sampled point of middle peak power the sequences h 'PUSCHIn position number
npeak；
Determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by the position number
npeakAnd with the position number npeakAdjacent position number composition position number set R；
Respectively from the sequences h 'PUCCHWith sequences h 'PUSCHThe corresponding sampled point of middle acquisition setting position sequence number, it is described to set
Determining position number includes all position numbers in the position number set R；
According to sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number, calculate the judgement
Measure Y.
Preferably, in described device, second determination unit calculates decision content Y using equation below：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication,
h'PUCCH(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number
The value of the corresponding sampled points of j.
Preferably, in described device, the described and position number npeakAdjacent position number is the npeakBefore
One position number npeak- 1 and npeakA n afterwardspeak+1。
Preferably, in described device, second determination unit is according to the decision content Y and the default DTX threshold values
Comparative result, determine, in the DTX judging results of target UE described in first moment, to be specifically used for：
When determining that the decision content Y is less than the default DTX threshold values, determine in target UE described in first moment
DTX judging results are true；
When determining that the decision content Y is greater than or equal to the default DTX threshold values, determine in target described in first moment
The DTX judging results of UE are false.
Preferably, the window of the user's window as the target UE that sets number is long.
The embodiment of the present invention also provides a kind of base station, includes the discontinuous transmission of any of the above-described Physical Uplink Control Channel
DTX judgment means.
Using DTX determination methods, device and the base station of Physical Uplink Control Channel provided in an embodiment of the present invention, have with
Lower advantageous effect：Letter by the PUSCH signals for combining the PUCCH resource uplink signal in the block using target UE, target UE
Road estimated result and default DTX threshold values judge the DTX state of target UE, so as to avoid noise work(in the prior art is utilized
Rate judges the mode of DTX, improves the accuracy of PUCCH channels DTX judgements to a certain extent, even if in interference than more serious
Environment in also can accurately judge the DTX state of target UE.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (17)
1. a kind of discontinuous transmission DTX determination methods of Physical Uplink Control Channel, which is characterized in that including：
Base station is in the Physical Uplink Control Channel PUCCH resource uplink signal in the block of the first reception target UE；
When determining the Physical Uplink Shared Channel PUSCH signals that the second reception is sent to the target UE, according to pre- imputation
Method carries out channel estimation to the uplink signal and obtains channel estimation frequency-domain result sequence HPUCCH, and according to the preset algorithm pair
The PUSCH signals carry out channel estimation and obtain channel estimation frequency-domain result sequence HPUSCH, second moment is described first
Before moment；
In a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point increases to and system Fourier
Convert points NFFTIdentical number；
By the sequence H' after zero paddingPUCCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUCCH；
By the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence hPUSCH；
Extract the sequences hPUCCHIn belong to the setting number sampled point of the target UE, composition sequence h'PUCCH；
Since first sampled point, the sequences h is extractedPUSCHIn it is preceding setting number sampled point, composition sequence h'PUSCH；
According to the sequences h 'PUCCHWith sequences h 'PUSCH, calculate decision content Y；
According to the decision content Y and the comparative result of default DTX threshold values, the DTX in target UE described in first moment is determined
Judging result.
2. the method as described in claim 1, which is characterized in that first moment subtracts the result obtained by second moment
T is within a preset range.
3. the method as described in claim 1, which is characterized in that the preset algorithm is least square method or Minimum Mean Square Error
Method；The form of the PUCCH is format1 or format1a or format1b.
4. the method as described in claim 1, which is characterized in that according to the sequences h 'PUCCHAnd sequences h 'PUSCH, calculating sentences
Disconnected amount Y, specifically includes：
Determine the sequences h 'PUSCHThe corresponding sampled point of middle peak power the sequences h 'PUSCHIn position number npeak；
Determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by the position number npeakWith
And with the position number npeakAdjacent position number composition position number set R；
Respectively from the sequences h 'PUCCHWith sequences h 'PUSCHIt is middle to obtain the corresponding sampled point of setting position sequence number, the setting position
Sequence number includes all position numbers in the position number set R；
According to sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number, calculate the decision content Y.
5. method as claimed in claim 4, which is characterized in that including：The formula for calculating the decision content Y is as follows：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication, h'PUCCH
(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number j is corresponded to
Sampled point value.
6. method as claimed in claim 4, which is characterized in that the described and position number npeakAdjacent position number is
The npeakA position number n beforepeak- 1 and npeakA n afterwardspeak+1。
7. the method as described in claim 1, which is characterized in that according to the comparison of the decision content Y and the default DTX threshold values
As a result, it determines, in the DTX judging results of target UE described in first moment, to specifically include：
When determining that the decision content Y is less than the default DTX threshold values, determine to sentence in the DTX of target UE described in first moment
Disconnected result is true；
When determining that the decision content Y is greater than or equal to the default DTX threshold values, determine in target UE described in first moment
DTX judging results are false.
8. method as claimed in claim 4, which is characterized in that the window of the user's window as the target UE that sets number
It is long.
9. a kind of discontinuous transmission DTX judgment means of Physical Uplink Control Channel, which is characterized in that including：
Receiving unit, in the Physical Uplink Control Channel PUCCH resource of the first reception target UE uplink letter in the block
Number；
First determination unit, for determining Physical Uplink Shared Channel PUSCH that the second reception is sent to the target UE
During signal, channel estimation is carried out to the uplink signal according to preset algorithm and obtains channel estimation frequency-domain result sequence HPUCCH, and
Channel estimation is carried out to the PUSCH signals according to the preset algorithm and obtains channel estimation frequency-domain result sequence HPUSCH, it is described
Second moment is before first moment；
Second determination unit, in a manner of zero padding, respectively by the sequence HPUCCHAnd sequence HPUSCHThe number of middle sampled point
Increase to and system Fourier transformation points NFFTIdentical number；By the sequence H' after zero paddingPUCCHFourier transformation is carried out to obtain
Time domain impulse response sequence hPUCCH；By the sequence H' after zero paddingPUSCHIt carries out Fourier transformation and obtains time domain impulse response sequence
hPUSCH；Extract the sequences hPUCCHIn belong to the setting number sampled point of the target UE, composition sequence h'PUCCH；From first
A sampled point starts, and extracts the sequences hPUSCHIn it is preceding setting number sampled point, composition sequence h'PUSCH；According to the sequence
h'PUCCHWith sequences h 'PUSCH, calculate decision content Y；According to the decision content Y and the comparative result of default DTX threshold values, determine in institute
State the DTX judging results of target UE described in the first moment.
10. device as claimed in claim 9, which is characterized in that first moment subtracts the knot obtained by second moment
Fruit T is within a preset range.
11. device as claimed in claim 9, which is characterized in that the preset algorithm is least square method or Minimum Mean Square Error
Method；The form of the PUCCH is format1 or format1a or format1b.
12. device as claimed in claim 9, which is characterized in that second determination unit according to the sequences h 'PUCCHWith
And sequences h 'PUSCH, when calculating decision content Y, it is specifically used for：
Determine the sequences h 'PUSCHThe corresponding sampled point of middle peak power the sequences h 'PUSCHIn position number npeak；
Determine the sequences h 'PUSCHIn with the position number npeakAdjacent position number, and by the position number npeakWith
And with the position number npeakAdjacent position number composition position number set R；
Respectively from the sequences h 'PUCCHWith sequences h 'PUSCHIt is middle to obtain the corresponding sampled point of setting position sequence number, the setting position
Sequence number includes all position numbers in the position number set R；
According to sequences h 'PUCCHWith sequences h 'PUSCHDescribed in the corresponding sampled point of setting position sequence number, calculate the decision content Y.
13. device as claimed in claim 12, which is characterized in that second determination unit is calculated using equation below to be judged
Measure Y：
Y=∑sj∈R|h'PUCCH(j)*h'PUSCH(j)|2
Wherein, R is position number set, and j is any position sequence number in position number set, and * is conjugate multiplication, h'PUCCH
(j) for sequences h 'PUCCHThe value of the corresponding sampled point of middle position number j, h'PUSCH(j) for sequences h 'PUSCHMiddle position number j is corresponded to
Sampled point value.
14. device as claimed in claim 12, which is characterized in that the described and position number npeakAdjacent position number
For the npeakA position number n beforepeak- 1 and npeakA n afterwardspeak+1。
15. device as claimed in claim 9, which is characterized in that second determination unit is according to the decision content Y and institute
The comparative result of default DTX threshold values is stated, determines, in the DTX judging results of target UE described in first moment, to be specifically used for：
When determining that the decision content Y is less than the default DTX threshold values, determine to sentence in the DTX of target UE described in first moment
Disconnected result is true；
When determining that the decision content Y is greater than or equal to the default DTX threshold values, determine in target UE described in first moment
DTX judging results are false.
16. device as claimed in claim 9, which is characterized in that the window of the user's window as the target UE that sets number
It is long.
17. a kind of base station, which is characterized in that include the discontinuous transmission of any Physical Uplink Control Channel of claim 9-16
DTX judgment means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392105.0A CN105072060B (en) | 2015-07-03 | 2015-07-03 | DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510392105.0A CN105072060B (en) | 2015-07-03 | 2015-07-03 | DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105072060A CN105072060A (en) | 2015-11-18 |
| CN105072060B true CN105072060B (en) | 2018-05-29 |
Family
ID=54501346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510392105.0A Active CN105072060B (en) | 2015-07-03 | 2015-07-03 | DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105072060B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111148142B (en) * | 2019-12-31 | 2022-07-12 | 重庆大学 | Dormant cell detection method based on anomaly detection and integrated learning |
| CN113454937B (en) * | 2020-07-07 | 2023-09-26 | 香港应用科技研究院有限公司 | Method and apparatus for determining physical uplink control channel PUCCH discontinuous transmission DTX in wireless communication system |
| US11457502B2 (en) * | 2021-02-09 | 2022-09-27 | Hong Kong Applied Science And Technology Research Institute Co., Ltd | Method and device for detecting partial discontinuous transmission (DTX) using channel estimation data |
| CN113170333B (en) * | 2021-02-09 | 2023-07-28 | 香港应用科技研究院有限公司 | Method and apparatus for detecting partial Discontinuous Transmission (DTX) using channel estimation data |
| CN112532370B (en) * | 2021-02-09 | 2021-05-25 | 广州慧睿思通科技股份有限公司 | PUCCH information detection method, device, electronic equipment and computer-readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113860A (en) * | 2014-07-07 | 2014-10-22 | 京信通信***（中国）有限公司 | DTX judgment method and device for uplink control channel |
| CN104168095A (en) * | 2014-08-15 | 2014-11-26 | 北京北方烽火科技有限公司 | Non-continuity transmission detection method and device |
| CN104244380A (en) * | 2013-06-09 | 2014-12-24 | 华为技术有限公司 | Method and device for determining UE activation time |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101168118B1 (en) * | 2007-10-02 | 2012-07-24 | 노키아 지멘스 네트웍스 오와이 | Improved ack/nack dtx detection and signalling of not receiving a downlink allocation grant message |
-
2015
- 2015-07-03 CN CN201510392105.0A patent/CN105072060B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244380A (en) * | 2013-06-09 | 2014-12-24 | 华为技术有限公司 | Method and device for determining UE activation time |
| CN104113860A (en) * | 2014-07-07 | 2014-10-22 | 京信通信***（中国）有限公司 | DTX judgment method and device for uplink control channel |
| CN104168095A (en) * | 2014-08-15 | 2014-11-26 | 北京北方烽火科技有限公司 | Non-continuity transmission detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105072060A (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105072060B (en) | DTX determination methods, device and the base station of a kind of Physical Uplink Control Channel | |
| US11863363B2 (en) | Sounding reference signal processing for LTE | |
| US8306012B2 (en) | Channel estimation for synchronized cells in a cellular communication system | |
| CN109565361A (en) | For determining the method and wireless device of transport block size | |
| CN101383665A (en) | Method and device for estimating reception quality in radio communication | |
| CN110266453A (en) | The method and apparatus of blind examination public search space and the specific search space UE | |
| CN104022996B (en) | Channel estimation-based timing synchronization method for orthogonal frequency division multiplexing (OFDM) system | |
| CN103701478A (en) | Interference elimination device and receiver | |
| CN102640530A (en) | Wireless base station | |
| EP3214884A1 (en) | Method and device for adaptive modulation and coding | |
| CN106161322B (en) | Signal processing method, uplink resource allocation method and device thereof | |
| CN103379078A (en) | Method and device for frequency domain balancing detection | |
| EP2398269A1 (en) | Signal to interference plus noise ratio (sinr) estimation method and device | |
| CN103428122A (en) | User equipment and method for radio link monitoring | |
| US10686637B2 (en) | Receiving apparatus and receiving method | |
| CN104113860B (en) | The DTX determination methods and device of a kind of ascending control channel | |
| CN104253771B (en) | Multi-parameter combined estimation method and device | |
| CN107317779A (en) | A kind of frequency deviation estimating method and device | |
| KR102093266B1 (en) | Method and apparatus for detecting signal | |
| CN102892138B (en) | Signal-to-noise ratio measuring method and device for PUCCH (Physical Uplink Control Channel) | |
| CN106797657B (en) | Signal transmission method and device | |
| CN105846948B (en) | Method and device for realizing HARQ-ACK detection | |
| EP2975896B1 (en) | Reception apparatus in wireless communication system and channel estimation control method | |
| EP2741441B1 (en) | Method and apparatus for transmitting downlink hybrid automatic repeat request information in wireless communication system | |
| KR20110087635A (en) | Apparatus and method to estimate noise and interference power in a communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180226 Address after: 510663 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangzhou economic and Technological Development Zone, Guangdong Province, No. 10 Applicant after: Comba Telecom System (China) Co., Ltd. Applicant after: Comba Telecom Systems (Guangzhou) Co., Ltd. Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant after: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. Address before: 510663 Guangdong city of Guangzhou Province Economic and Technological Development Zone Jinbi Road No. 6 Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200108 Address after: 510663 No. 10, Shenzhou Road, Science City, Guangzhou, economic and Technological Development Zone, Huangpu District, Guangzhou, Guangdong Province Patentee after: Jingxin Communication System (China) Co., Ltd. Address before: 510663 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangzhou economic and Technological Development Zone, Guangdong Province, No. 10 Co-patentee before: Jingxin Communication System (Guangzhou) Co., Ltd. Patentee before: Jingxin Communication System (China) Co., Ltd. Co-patentee before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 No.10, Shenzhou Road, Guangzhou Science City, economic and Technological Development Zone, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Jingxin Network System Co.,Ltd. Address before: 510663 No.10, Shenzhou Road, Guangzhou Science City, economic and Technological Development Zone, Huangpu District, Guangzhou City, Guangdong Province Patentee before: Comba Telecom System (China) Ltd. |