CN104393955B - Ack/nack signal detection method and device - Google Patents
Ack/nack signal detection method and device Download PDFInfo
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- CN104393955B CN104393955B CN201410687225.9A CN201410687225A CN104393955B CN 104393955 B CN104393955 B CN 104393955B CN 201410687225 A CN201410687225 A CN 201410687225A CN 104393955 B CN104393955 B CN 104393955B
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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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/201—Frame classification, e.g. bad, good or erased
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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
- H04L1/1692—Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
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Abstract
The embodiment of the present application provides a kind of ack/nack signal detection method and device, the described method includes：Obtain the data message of user device transmissions；The data message is subjected to dissection process, obtains the soft bit information of the data message；According to the soft bit information, the actual reception energy of the data message is calculated；Obtain the theoretical of ack/nack signal and send energy；Compare the theoretical transmission energy and the actual reception energy, determine whether the data message is ack/nack signal according to comparative result.The embodiment of the present application realizes effectively accurately ack/nack signal detection.
Description
Technical field
This application involves field of communication technology, and more particularly to a kind of ACK, (Acknowledgement, certainty are true
Recognize)/NACK (Negative Acknowledgement, negative acknowledgement) signal detecting methods and device.
Background technology
At LTE (Long Term Evolution, Long Term Evolution)) in the communication system such as/LTE-A (LTE-Advanced),
Data-bag lost introduces HARQ (Hybrid Automatic Repeat request, hybrid automatic repeat-request in order to prevent
Technology), user equipment can carry out error detection when receiving the data packet of network side transmission to it, if having correctly received data packet,
Then user equipment feeding back ACK (Acknowledgement, certainty confirm) signal, if being not properly received data packet, is used
Family equipment feedback NACK (Negative Acknowledgement, negative acknowledgement) signal, if user equipment does not receive net
The data packet that network side is sent, then carry out DTX (Discontinue Transmission, discontinuous transmission) and do not launch any letter
Number.
And network side equipment receives ack signal, new data are just sent, otherwise resend the data of last time transmission
Bag.Due to introducing DTX, network side equipment needs to judge whether ack/nack signal, and user equipment currently whether
For DTX state, the accuracy of detection directly affects the probability of ack/nack signal missing inspection and false-alarm, therefore how design one
The effective detection mode of kind, with definite user equipment transmission for ack/nack signal, or DTX, become people in the art
Member's technical problem in the urgent need to address.
The content of the invention
In view of this, this application provides a kind of ACK (Acknowledgement, certainty confirm)/NACK
(Negative Acknowledgement, negative acknowledgement) signal detecting method and device, realize ack/nack signal
Effectively accurately detection.
To achieve the above object, the application provides following technical solution：
A kind of ack/nack signal detection method, including：
Obtain the data message of user device transmissions；
The data message is subjected to dissection process, obtains the soft bit information of the data message；
According to the soft bit information, the actual reception energy of the data message is calculated；
Obtain the theoretical of ack/nack signal and send energy；
Compare the theoretical transmission energy and the actual reception energy, the data message is determined according to comparative result
Whether it is ack/nack signal.
Preferably, it is described to be parsed the data message when the data message is parallel multiple bit streams
Processing, obtaining the soft bit information of the data message includes：
The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；
Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
Preferably, according to the soft bit information, calculating the actual reception energy of the data message includes：
When the original series length of the data message is 1 bit, it is single encoded ratio to determine the soft bit information
Spy's circulation is formed, and using the whole coded-bits of the soft bit information and value, calculates actually connecing for the data message
Receive energy；
When the original series length of the data message is 2 bit, it is the first encoding ratio to determine the soft bit information
Special, the second coded-bit and the 3rd coded-bit circulate to be formed, and be utilized respectively whole the first coded-bits and value, whole
Second coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, determine described
Soft bit information is coded sequenceCirculation is formed, using each in each coded sequence
Whole coded-bits and value in a same position, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, determine described
Soft bit information includes Part I and Part II, and each section is by coded sequence
Circulation is formed, and using the whole coded-bits and value in each same position in each coded sequence, calculates each portion
The actual reception energy divided.
Preferably, the theoretical transmission energy and the actual reception energy, judge described definite described
Data message includes for ack/nack signal：
When the original series length of the data message is less than or equal to 11 bit, it is more described it is theoretical send energy and
The actual reception energy, it is definite when the theoretical transmission energy and the actual relation for receiving energy meet Rule of judgment
The data message is ack/nack signal；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, it is respectively compared
The actual reception energy of each section and the theoretical transmission energy, send out in actual reception energy and the theory of each section
When sending the relation of energy to be satisfied by the Rule of judgment, it is ack/nack signal to determine the data message.
Preferably, the theoretical transmission energy and the actual reception energy, judge described definite described
Data message includes for ack/nack signal：
The actual difference for receiving energy and the theoretical transmission energy is calculated, obtains interfering energy；
The theoretical ratio for sending energy and the system interference energy is calculated, obtains signal interference ratio；
When the signal interference ratio is more than pre-determined threshold, it is ack/nack signal to determine the data message.
A kind of ack/nack signal detection device, including：
Receiving module, for obtaining the data message of user device transmissions；
Parsing module, for the data message to be carried out dissection process, obtains the soft bit information of the data message；
First computing module, for according to the soft bit information, calculating the actual reception energy of the data message；
Second computing module, energy is sent for obtaining the theoretical of ack/nack signal；
Detection module, it is true according to comparative result for the theoretical transmission energy and the actual reception energy
Whether the fixed data message is ack/nack signal.
Preferably, when the data message is parallel multiple bit streams, the parsing module is specifically used for：
The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；
Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
Preferably, first computing module is specifically used for：
When the original series length of the data message is 1 bit, it is single encoded ratio to determine the soft bit information
Spy's circulation is formed, and using the whole coded-bits of the soft bit information and value, calculates actually connecing for the data message
Receive energy；
When the original series length of the data message is 2 bit, it is the first encoding ratio to determine the soft bit information
Special, the second coded-bit and the 3rd coded-bit circulate to be formed, and be utilized respectively whole the first coded-bits and value, whole
Second coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, determine described
Soft bit information is coded sequenceCirculation is formed, using each in each coded sequence
Whole coded-bits and value in a same position, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, determine described
Soft bit information includes Part I and Part II, and each section is by coded sequence
Circulation is formed, and using the whole coded-bits and value in each same position in each coded sequence, calculates each portion
The actual reception energy divided.
Preferably, the detection module is specifically used for：
When the original series length of the data message is less than or equal to 11 bit, it is more described it is theoretical send energy and
The actual reception energy, it is definite when the theoretical transmission energy and the actual relation for receiving energy meet Rule of judgment
The data message is ack/nack signal；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, it is respectively compared
The actual reception energy of each section and the theoretical transmission energy, send out in actual reception energy and the theory of each section
When sending the relation of energy to be satisfied by the Rule of judgment, it is ack/nack signal to determine the data message.
Preferably, the detection module includes：
First computing unit, for calculating the actual difference for receiving energy and the theoretical transmission energy, is done
Disturb energy；
Second computing unit, for calculating the theoretical ratio for sending energy and the system interference energy, is believed
Dry ratio；
Detection unit, for when the signal interference ratio is more than pre-determined threshold, determining that the data message is believed for ACK/NACK
Number.It can be seen via above technical scheme that compared with prior art, this application provides a kind of ack/nack signal detection method
And device, by the data message of the user device transmissions of acquisition, dissection process is carried out, obtains the soft bit letter of the data message
Breath；According to the soft bit information, the actual reception energy of the data message is calculated；Meanwhile obtain ack/nack signal
Theory sends energy；Pass through the theoretical transmission energy and the actual reception energy, you can judge the data letter
Whether breath is ack/nack signal, realizes the purpose for effectively accurately detecting ack/nack signal.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of application, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of ACK (Acknowledgement, certainty confirm)/NACK provided by the embodiments of the present application
The flow chart of (Negative Acknowledgement, negative acknowledgement) signal detecting method one embodiment；
Fig. 2 is a kind of flow chart of another embodiment of ack/nack signal detection method provided by the embodiments of the present application；
Fig. 3 is a kind of structural representation of ack/nack signal detection device one embodiment provided by the embodiments of the present application
Figure；
Fig. 4 is that a kind of structure of another embodiment of ack/nack signal detection device provided by the embodiments of the present application is to show
It is intended to.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, shall fall in the protection scope of this application.
The technical solution of the application, can be applied in each communication system based on 3GPP technologies, such as LTE (Long
Term Evolution, Long Term Evolution), LTE-A (LTE-Advanced) etc..
User equipment (UE, User Equipment) is also referred to as user terminal (UT, User Terminal), movement
Terminal (MT, Mobile Terminal), mobile station (MS, Mobile Station) etc., can through wireless access network (for example,
RAN, Radio Access Network) communicate with one or more core nets.
Network side equipment, can refer to that the evolved base station in LTE (is known as eNB or e-NodeB, evolution
NodeB)。
The embodiment of the present application is based on HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request
Technology) technical transmission data packet, the detection of the main ACK/NACK for describing up channel.Network side equipment is set getting user
During the data message that preparation is sent, by a series of dissection process, soft bit information can be obtained, and then can according to soft bit information
The actual reception energy of data message is calculated, while the theoretical of ack/nack signal can be calculated and send energy, led to
Cross and compare the actual reception energy and theory transmission energy, if data message is effective ack/nack signal, actually connect
Receiving energy will be very close with the theoretical energy that sends, and if user equipment is in DTX state, data message is invalid ACK/
NACK signal, the actual energy and theory transmission energy of receiving will differ greatly, therefore receive energy and reason by relatively actual
By energy is sent, can accurately and effectively detect data message whether ack/nack signal, and whether user equipment be in
DTX state.
Fig. 1 is a kind of flow chart of ack/nack signal detection method one embodiment provided by the embodiments of the present application, should
Method can include following steps：
101：Obtain the data message of user device transmissions.
102：The data message is subjected to dissection process, obtains the soft bit information of the data message.
Network side equipment receives data message, it is necessary to carry out dissection process, is converted to soft bit information to carry out data
Processing.
Wherein, dissection process includes OFDM (Orthogonal Frequency Division Multiplexing), just
Hand over frequency multiplexing technique) inverse transformation, resource impact, channel estimation, equilibrium, solution conversion precoding, solution layer mapping, descrambling etc. behaviour
Make.
Pass through dissection process, you can data message is converted into soft bit information.
103：According to the soft bit information, the actual reception energy of the data message is calculated.
After obtaining soft bit information, the soft bit energy of soft bit information can be calculated, you can using as described
The actual reception energy of data message.
104：Obtain the theoretical of ack/nack signal and send energy.
In the embodiment of the present application, also need to calculate theoretical transmission energy when sending ack/nack signal.
Since ack/nack signal will map to the outermost layer of planisphere, thus pass through outermost layer constellation point in computational theory
The energy of corresponding significant bit information, can obtain the theoretical of ack/nack signal sends energy.
105：Compare the theoretical transmission energy and the actual reception energy, according to determining the comparative result
Whether data message is ack/nack signal.
User equipment, just can be to network side equipment feeding back ACK/NACK when receiving the data packet of network side equipment transmission
Signal, otherwise carries out DTX (Discontinue Transmission, discontinuous transmission).
Network side equipment is when receiving data message, it is necessary to judge whether user equipment is in DTX state, the data
Whether information is ack/nack signal.And if the detection of DTX, ACK or NACK can not be carried out accurately, it may cause to leak
Error detection misses, i.e., NACK signal is detected as DTX so that can not carry out incremental redundancy merging, or ACK is detected as DTX, causes volume
Once retransmit outside；Or there is false-alarm mistake, i.e., DTX is detected as ACK, causes network side equipment to start the biography of new data packets
It is defeated, and abandon this transmission.
Therefore, the embodiment of the present application provides a kind of mode of effective detection DTX, ACK/NACK, is set for network side
The data message that preparation is sent, calculates the actual reception energy of the data message, and if calculating user equipment transmission ACK/
NACK signal, the theoretical of ACK/NACK send energy, energy are sent by relatively actual reception energy and theory, if data
Information is effective ack/nack signal, and the actual energy that receives will be very close with the theoretical energy that sends, and if user equipment
In DTX state, data message is invalid ack/nack signal, it is actual receive energy with it is theoretical send energy by difference compared with
Greatly, therefore by relatively actual energy and theoretical transmission energy are received, accurately and effectively whether can detects data message
Whether ack/nack signal, user equipment are in DTX state.
Wherein, in LTE/LTE-A systems, the ack/nack signal that user equipment is sent can be in PUCCH (Physical
Uplink Control CHannel, physical uplink control channel) on transmit, can also be in PUSCH (physical
Uplink shared channel, physical uplink link shared channel) on be transmitted.
When being transmitted on PUSCH, ACK/NACK occupies the resource of business datum, when not sending ack/nack signal,
Still there is business data transmission when on PUSCH.Therefore, when being transmitted on PUSCH, the data message of user device transmissions may be
Ack/nack signal, or the business datum transmitted on PUSCH.
When being transmitted on PUCCH, the data message of user device transmissions may be ack/nack signal.
The ack/nack signal that user equipment is sent on PUCCH when transmitting, if not transmitting ACK/NACK on PUCCH
Signal, only exists noise on corresponding resource position, thus can also by measuring received signal to noise ratio on corresponding resource location,
By received signal to noise ratio compared with threshold value set in advance, determine whether user equipment handles DTX with this, or whether
Send ack/nack signal.
And since when being transmitted on PUSCH, ACK/NACK occupies the resource of business datum, do not send ack/nack signal
When, still there is business data transmission when on PUSCH, incessantly there are noise, therefore detected by the way of received signal to noise ratio is measured
Whether user equipment handles DTX, or whether sends the problems such as ack/nack signal will cause false-alarm, and detection is inaccurate, and leads to
The embodiment of the present application is crossed, receives energy and theoretical transmission energy by relatively actual, you can effectively accurately determine user
Whether the data message that equipment is sent is ACK/NACK or whether the user equipment is in DTX state.
By it is more described it is theoretical send energy and it is described it is actual receive energy, judge the data message whether be
Ack/nack signal can have a variety of implementations, as shown in Fig. 2, being detected in ack/nack signal provided by the embodiments of the present application
In another embodiment of method, a kind of possible implementation is given, step 101~step 104 can join in this method
See that described in above-described embodiment, details are not described herein.Wherein, the theoretical transmission energy and the actual reception energy
Amount, judges whether the data message is that ack/nack signal can include：
1051：The actual difference for receiving energy and the theoretical transmission energy is calculated, obtains interfering energy.
1052：The theoretical ratio for sending energy and the system interference energy is calculated, obtains signal interference ratio.
Specifically, signal interference ratio can calculate according to the following formula：
Ratio represents signal interference ratio, EtRepresentation theory sends energy, ErRepresent actual and receive energy.The signal interference ratio being calculated
Namely represent signal and the ratio of interference.
If the data message received is effective ack/nack signal, theory sends energy can be non-with actual reception energy
Very close to causing the denominator of above formula, obtained Ratio values will be very big close to 0；If the data message received is invalid
Ack/nack signal, theory sends energy and actual reception capacity volume variance is larger, and the Ratio values calculated are compared to data message
For Ratio is calculated during effective ack/nack signal much smaller, significant difference, therefore can by a predetermined threshold value
Judged.
1053：When the signal interference ratio is more than pre-determined threshold, it is ack/nack signal to determine the data message.
The ack/nack signal that user equipment is sent may be multiplexed to be transmitted in two or more code words, network side equipment meeting
Two or more parallel bit streams are received, since the actual energy that receives can be added up by the bit energy of data message
Arrive, therefore, handle for convenience, parallel bit stream can be converted to serial bit stream.
In a kind of possible implementation, in above-described embodiment, when the data message is parallel more bit streams, institute
State and the data message is subjected to dissection process, obtaining the soft bit information of the data message can include：
The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；
Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
Namely before ACK/NACK, DTX detection is carried out, the parallel soft bit obtained after dissection process can be circulated
It is changed to serial soft bit stream.
Wherein, ack/nack signal it is theoretical send energy calculating can outermost layer constellation point is corresponding to be had by calculating
The energy of effect bit information obtains, and can specifically be calculated according to the following formula：
EtRepresentation theory sends energy, and wherein cw_num is the code word number of ACK/NACK multiplexings, and Q ' is 3GPP TS
ACK/NACK symbol numbers after every layer of coding specified in 36.212 agreements, diFor under different modulating mode it is maximum it is European away from
From value is as follows：
QmRepresent Euclidean distance.
Wherein, the actual calculating for receiving energy of data message carries out not according to the difference of data message original series length
Same calculating.
Original series length refers to the sequence length before user equipment is not encoded.
According to 36.212 agreements of 3GPP, for ack signal, it is assumed that its original series is expressed as：
When original series length is different, it encodes different also different.
In original series length oACKFor 1 when, the sequence after encoding is as shown in table 1 below：
Coded-bit in coded sequence, it is the bit in original series.
For 2 when, the sequence after encoding is as shown in table 2 below：
In upper table 1 and table 2, X, Y represent placeholder, without practical significance.
Coded-bit respectively in coded sequence,For original
Bit in beginning sequence.
For 3≤OACKIt is to use RM (Reed-muller) coding mode, it is Error Control in communication system when≤11
One kind of line style block code in coding, obtained coded sequence are：
For 11<OACK≤ 20 are encoded using double RM, two of which data sequence be taken respectively from original series even bit and
Odd bits, then two obtained new data sequences are encoded respectively, obtain two coded sequences.
After coding mode is determined, to sequence loops value after coding until meeting multiplexing length requirement, to be treated
The ack signal of transmission, and the sequence for being produced by double RM codings, new sequence the first half after coding are placed original by even bit
The circulating repetition for the coded sequence that sequence produces, later half place the circulation weight of the coded sequence produced by odd bits original series
It is multiple.
Therefore, in the embodiment of the present application, actual reception energy can be calculated, as one according to different original series length
Kind possible implementation, in the foregoing description, according to the soft bit information, calculates the actual reception energy of the data message
Amount can include：
When the original series length of the data message is 1 bit, it is single encoded ratio to determine the soft bit information
Spy's circulation is formed, and using the whole coded-bits of the soft bit information and value, calculates actually connecing for the data message
Receive energy；
When the original series length of the data message is 2 bit, it is the first encoding ratio to determine the soft bit information
Special, the second coded-bit and the 3rd coded-bit circulate to be formed, and be utilized respectively whole the first coded-bits and value, whole
Second coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, determine described
Soft bit information is coded sequenceCirculation is formed, using each in different coding sequence
Coded-bit and value, calculate the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, determine described
Soft bit information includes Part I and Part II, and each section is by coded sequence
Circulation is formed, using in coded sequence each bit and value, calculate the actual reception energy of each section.
Namely in OACKWhen=1, after removing placeholder, ack/nack signal be in the nature individual bit circulation, therefore,
It is described that the actual reception energy of the data message is calculated according to the soft bit information, can be specifically first by all soft ratios
Spy's summation, the Nth power of result Modulus of access or modulus value after by summation, obtains soft bit energy, is actual reception energy；
In OACKWhen=2, after removing placeholder, ack/nack signal is in the nature coded-bit 's
Circulation, it is described according to the soft bit information, the actual reception energy of the data message is calculated, can be specifically：
Calculate respectively in soft bit information allAnd value, allAnd value and allAnd value,
Then distinguish the Nth power of Modulus of access or modulus value, then the Nth power of the corresponding modulus value of three coded-bits or modulus value is carried out
It is cumulative, soft bit energy is obtained, is actual reception energy；
In 3≤OACKWhen≤11, after removing placeholder, it is in the nature to code sequence to remove the ack/nack signal after placeholder
RowCirculation, thus according to the soft bit information, calculate the reality of the data message
Energy is received, can be specifically：
Multistage will be extracted in soft bit informationInformation, then respectively on every sectionCorresponding multiple soft bits add up on position, then Modulus of access or modulus value respectively
Nth power, finally the Nth power of the modulus value of 31 sections of sequences or modulus value is added up, soft bit energy is obtained, as actually connects
Receive energy.
In 12≤OACKWhen≤20, after removing placeholder, ack/nack signal can be divided into front and rear two sections i.e. Part I and
Part II, Part I correspond to the even bit of original series, and Part II corresponds to the odd bits of original series.Each section
Decoding process is identical, and each section is in the nature coded sequenceCirculation.
Therefore, it is described according to the soft bit information, the actual reception energy of the data message is calculated, can be specific
It is：
For each section, multistage is extractedCoded sequence, then respectively on every sectionMultiple soft bits of position correspondence add up, then the N of Modulus of access or modulus value respectively
Power, then 31 sections of modulus value or modulus value Nth power are added up, the soft bit energy of each section is obtained, i.e., as each portion
The actual reception energy divided；
Since the original series of data message are more than or equal to 12 bits and when being less than or equal to 20 bit, two can be calculated
It is actual to receive energy, therefore energy is received in the theoretical transmission energy and the reality, judge the data message
, it is necessary to which the energy that receives actual to this two is compared when being whether ack/nack signal, only it is being satisfied by judging bar
During part, just determine that the data message is ACK/NACK.
Therefore, the theoretical transmission energy and the actual reception energy, judge that the data message is
It is no to include for ack/nack signal：
When the data message original series length is less than or equal to 11 bit, the theoretical transmission energy and institute
Actual reception energy is stated, when the theoretical relation for sending energy and the actual reception energy meets Rule of judgment, is determined
The data message is ack/nack signal；
When the original series of the data message are more than or equal to 12 bits and are less than or equal to 20 bit, it is respectively compared each
Partial actual reception energy and the theoretical transmission energy, energy is sent in actual reception energy and the theory of each section
When the relation of amount is satisfied by Rule of judgment, it is ack/nack signal to determine the data message.
Reality receives energy and the theoretical relation for sending energy can be represented by signal interference ratio, i.e.,
Ratio represents signal interference ratio, EtRepresentation theory sends energy, ErRepresent actual and receive energy.
The Rule of judgment can refer to that signal interference ratio is more than pre-determined threshold.
For foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but
It is that those skilled in the art should know, the application and from the limitation of described sequence of movement, because according to the application, certain
A little steps can use other orders or be carried out at the same time.Secondly, those skilled in the art should also know, be retouched in specification
The embodiment stated belongs to preferred embodiment, necessary to involved action and module not necessarily the application.
Fig. 3 is a kind of structural representation of ack/nack signal detection device one embodiment provided by the embodiments of the present application
Figure, the device can be applied particularly in network side equipment, which can include：
Receiving module 301, for obtaining the data message of user device transmissions.
Parsing module 302, for the data message to be carried out dissection process, obtains the soft bit letter of the data message
Breath.
First computing module 303, for according to the soft bit information, calculating the actual reception energy of the data message
Amount.
Second computing module 304, energy is sent for obtaining the theoretical of ack/nack signal.
Detection module 305, for the theoretical transmission energy and the actual reception energy, according to comparative result
Determine whether the data message is ack/nack signal.
Data message is received, it is necessary to carry out dissection process, is converted to soft bit information to carry out data processing.
Wherein, dissection process includes OFDM (Orthogonal Frequency Division Multiplexing), just
Hand over frequency multiplexing technique) inverse transformation, resource impact, channel estimation, equilibrium, solution conversion precoding, solution layer mapping, descrambling etc. behaviour
Make.
Pass through dissection process, you can data message is converted into soft bit information.
Since ack/nack signal will map to the outermost layer of planisphere, thus pass through outermost layer constellation point in computational theory
The energy of corresponding significant bit information, can obtain the theoretical of ack/nack signal sends energy.
The embodiment of the present application provides a kind of mode of effective detection DTX, ACK/NACK, is sent for network side equipment
Data message, calculate the actual reception energy of the data message, and if calculate user equipment and send ack/nack signal,
The theoretical transmission energy of ACK/NACK, sends energy, if data message is to have by relatively actual reception energy and theory
The ack/nack signal of effect, the actual energy that receives will be very close with the theoretical energy that sends, and if user equipment is in DTX shapes
State, data message are invalid ack/nack signal, and the actual energy and theory transmission energy of receiving will differ greatly, therefore pass through
It is relatively actual to receive energy and theoretical transmission energy, it can accurately and effectively detect whether ACK/NACK believes data message
Number, whether user equipment is in DTX state.
Since when being transmitted on PUSCH, ACK/NACK occupies the resource of business datum, does not send ack/nack signal
When, still there is business data transmission when on PUSCH, incessantly there are noise, therefore detected by the way of received signal to noise ratio is measured
Whether user equipment handles DTX, or whether sends the problems such as ack/nack signal will cause false-alarm, and detection is inaccurate, and leads to
The embodiment of the present application is crossed, receives energy and theoretical transmission energy by relatively actual, you can effectively accurately determine user
Whether the data message that equipment is sent is ACK/NACK or whether the user equipment is in DTX state.
Wherein, detection module judges the number by the theoretical transmission energy and the actual reception energy
It is believed that whether breath is that ack/nack signal can have a variety of implementations, and in another embodiment that the application provides, the inspection
Surveying module 305 can include：
First computing unit 3051, for calculating the actual difference for receiving energy and the theoretical transmission energy, is obtained
Obtain interfering energy.
Second computing unit 3052, for calculating the theoretical ratio for sending energy and the system interference energy, is obtained
Obtain signal interference ratio.
Detection unit 3053, for when the signal interference ratio is more than pre-determined threshold, it to be ACK/ to determine the data message
NACK signal.
Wherein, signal interference ratio can be calculated specifically according to the following formula：
Ratio represents signal interference ratio, EtRepresentation theory sends energy, ErRepresent actual and receive energy.
If the data message received is effective ack/nack signal, theory sends energy can be non-with actual reception energy
Very close to causing the denominator of above formula, obtained Ratio values will be very big close to 0；If the data message received is invalid
Ack/nack signal, theory sends energy and actual reception capacity volume variance is larger, and the Ratio values calculated are compared to data message
For Ratio is calculated during effective ack/nack signal much smaller, significant difference, therefore can by a predetermined threshold value
Judged.
Therefore, by by signal interference ratio compared with pre-determined threshold, you can determine whether the data message is ACK/
NACK signal.
The ack/nack signal that user equipment is sent may be multiplexed to be transmitted in two or more code words, network side equipment meeting
Two or more parallel bit streams are received, since the actual energy that receives can be added up by the bit energy of data message
Arrive, therefore, handle for convenience, parallel bit stream can be converted to serial bit stream.
In a kind of possible implementation, when the data message is parallel multiple bit streams, the parsing mould
Block can be specifically used for：
The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；
Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
Wherein, ack/nack signal it is theoretical send energy calculating can outermost layer constellation point is corresponding to be had by calculating
The energy of effect bit information obtains.
The actual calculating for receiving energy of data message carries out different according to the difference of data message original series length
Calculate, therefore actual reception energy can be calculated, as a kind of possible implementation, institute according to different original series length
Stating the first computing module can be specifically used for：
When the original series length of the data message is 1 bit, it is single encoded ratio to determine the soft bit information
Spy's circulation is formed, and using the whole coded-bits of the soft bit information and value, calculates actually connecing for the data message
Receive energy；
When the original series length of the data message is 2 bit, it is the first encoding ratio to determine the soft bit information
Special, the second coded-bit and the 3rd coded-bit circulate to be formed, and be utilized respectively whole the first coded-bits and value, whole
Second coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, determine described
Soft bit information is coded sequenceCirculation is formed, using each in each coded sequence
Whole coded-bits and value in a same position, calculates the actual reception energy of the data message；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, determine described
Soft bit information includes Part I and Part II, and each section is by coded sequence
Circulation is formed, and using the whole coded-bits and value in each same position in each coded sequence, calculates each portion
The actual reception energy divided.
Theory sends energy and actual the specific of reception energy calculates the description that may refer in method section Example,
This is no longer going to repeat them.
Since the original series of data message are more than or equal to 12 bits and when being less than or equal to 20 bit, two can be calculated
It is actual to receive energy, therefore energy is received in the theoretical transmission energy and the reality, judge the data message
, it is necessary to which the energy that receives actual to this two is compared when being whether ack/nack signal, only it is being satisfied by judging bar
During part, just determine that the data message is ACK/NACK.Therefore the detection module can be specifically used for：
When the original series length of the data message is less than or equal to 11 bit, it is more described it is theoretical send energy and
The actual reception energy, it is definite when the theoretical transmission energy and the actual relation for receiving energy meet Rule of judgment
The data message is ack/nack signal；
When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, it is respectively compared
The actual reception energy of each section and the theoretical transmission energy, send out in actual reception energy and the theory of each section
When sending the relation of energy to be satisfied by the Rule of judgment, it is ack/nack signal to determine the data message.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part
It is bright.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there are other identical element in the process, method, article or apparatus that includes the element.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical solution essence of the application
On the part that contributes in other words to the prior art can be embodied in the form of software product, the computer software product
It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that a computer equipment
(can be personal computer, server, either network equipment etc.) performs some of each embodiment of the application or embodiment
Method described in part.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the application.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (8)
- A kind of 1. ack/nack signal detection method, it is characterised in that including：Obtain the data message of user device transmissions；The data message is subjected to dissection process, obtains the soft bit information of the data message；According to the soft bit information, the actual reception energy of the data message is calculated；Obtain the theoretical of ack/nack signal and send energy；Compare the theoretical transmission energy and the actual reception energy, whether the data message is determined according to comparative result For ack/nack signal；Wherein, according to the soft bit information, calculating the actual reception energy of the data message includes：When the original series length of the data message is 1 bit, determine that the soft bit information follows for single encoded bit Ring is formed, and using the whole coded-bits of the soft bit information and is worth, and calculates the actual reception energy of the data message Amount；When the original series length of the data message is 2 bit, determine the soft bit information for the first coded-bit, the Two coded-bits and the 3rd coded-bit circulate to be formed, and be utilized respectively all the first coded-bits and value, whole second Coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, the soft ratio is determined Special information is coded sequenceCirculation is formed, and utilizes each phase in each coded sequence With whole coded-bits on position and value, the actual reception energy of the data message is calculated；When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, the soft ratio is determined Special information includes Part I and Part II, and each section is by coded sequenceCirculation Formed, using the whole coded-bits and value in each same position in each coded sequence, calculate each section It is actual to receive energy.
- 2. according to the method described in claim 1, it is characterized in that, the data message for parallel multiple bit streams when, Described that the data message is carried out dissection process, obtaining the soft bit information of the data message includes：The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
- 3. according to the method described in claim 1, it is characterized in that, the theoretical transmission energy and the reality Energy is received, judges that the definite data message includes for ack/nack signal：When the original series length of the data message is less than or equal to 11 bit, the theoretical energy and described of sending It is actual to receive energy, when the theoretical transmission energy and the actual relation for receiving energy meet Rule of judgment, determine described Data message is ack/nack signal；When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, it is respectively compared each Partial actual reception energy and the theoretical transmission energy, energy is sent in actual reception energy and the theory of each section When the relation of amount is satisfied by the Rule of judgment, it is ack/nack signal to determine the data message.
- 4. according to the method described in claim 1, it is characterized in that, the theoretical transmission energy and the reality Energy is received, judges that the definite data message includes for ack/nack signal：The actual difference for receiving energy and the theoretical transmission energy is calculated, obtains interfering energy；The theoretical transmission energy and the ratio of the interfering energy are calculated, obtains signal interference ratio；When the signal interference ratio is more than pre-determined threshold, it is ack/nack signal to determine the data message.
- A kind of 5. ack/nack signal detection device, it is characterised in that including：Receiving module, for obtaining the data message of user device transmissions；Parsing module, for the data message to be carried out dissection process, obtains the soft bit information of the data message；First computing module, for according to the soft bit information, calculating the actual reception energy of the data message；Second computing module, energy is sent for obtaining the theoretical of ack/nack signal；Detection module, for the theoretical transmission energy and the actual reception energy, institute is determined according to comparative result State whether data message is ack/nack signal；Wherein, first computing module is specifically used for：When the original series length of the data message is 1 bit, determine that the soft bit information follows for single encoded bit Ring is formed, and using the whole coded-bits of the soft bit information and is worth, and calculates the actual reception energy of the data message Amount；When the original series length of the data message is 2 bit, determine the soft bit information for the first coded-bit, the Two coded-bits and the 3rd coded-bit circulate to be formed, and be utilized respectively all the first coded-bits and value, whole second Coded-bit and the 3rd coded-bit of value and whole and value, calculates the actual reception energy of the data message；When the original series length of the data message is more than or equal to 3 bits and is less than or equal to 11 bit, the soft ratio is determined Special information is coded sequenceCirculation is formed, and utilizes each phase in each coded sequence With whole coded-bits on position and value, the actual reception energy of the data message is calculated；When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, the soft ratio is determined Special information includes Part I and Part II, and each section is by coded sequenceCirculation Formed, using the whole coded-bits and value in each same position in each coded sequence, calculate each section It is actual to receive energy.
- 6. device according to claim 5, it is characterised in that when the data message is parallel multiple bit streams, The parsing module is specifically used for：The data message is subjected to dissection process, obtains parallel multiple parallel soft bit streams；Parallel multiple parallel soft bits circulation is changed to serial soft bit stream, as soft bit information.
- 7. device according to claim 5, it is characterised in that the detection module is specifically used for：When the original series length of the data message is less than or equal to 11 bit, the theoretical energy and described of sending It is actual to receive energy, when the theoretical transmission energy and the actual relation for receiving energy meet Rule of judgment, determine described Data message is ack/nack signal；When the original series length of the data message is more than or equal to 12 bits and is less than or equal to 20 bit, it is respectively compared each Partial actual reception energy and the theoretical transmission energy, energy is sent in actual reception energy and the theory of each section When the relation of amount is satisfied by the Rule of judgment, it is ack/nack signal to determine the data message.
- 8. device according to claim 5, it is characterised in that the detection module includes：First computing unit, for calculating the actual difference for receiving energy and the theoretical transmission energy, obtains interference energy Amount；Second computing unit, for calculating the theoretical transmission energy and the ratio of the interfering energy, obtains signal interference ratio；Detection unit, for when the signal interference ratio is more than pre-determined threshold, it to be ack/nack signal to determine the data message.
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| CN108075862A (en) * | 2016-11-16 | 2018-05-25 | 深圳市中兴微电子技术有限公司 | The method and apparatus that ACK/NACK is detected on a kind of Physical Uplink Shared Channel |
| CN110063035A (en) * | 2016-12-19 | 2019-07-26 | 索尼公司 | Communication equipment, communication control method and program |
| WO2018145256A1 (en) * | 2017-02-08 | 2018-08-16 | 南通朗恒通信技术有限公司 | Terminal in wireless communications, and method and apparatus in base station |
| US20220272790A1 (en) * | 2019-07-08 | 2022-08-25 | Nokia Technologies Oy | Discontinuous Transmission, DTX, Detection |
| CN114650122B (en) * | 2022-05-18 | 2022-08-02 | 成都爱瑞无线科技有限公司 | Physical uplink shared channel discontinuous transmission detection method, device and storage medium |
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| CN101884190A (en) * | 2007-10-02 | 2010-11-10 | 诺基亚西门子通信公司 | Improved ACK/NACK DTX detection |
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| CN103580816A (en) * | 2012-08-03 | 2014-02-12 | 中兴通讯股份有限公司 | Uplink receiving method and device |
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| CN101884190A (en) * | 2007-10-02 | 2010-11-10 | 诺基亚西门子通信公司 | Improved ACK/NACK DTX detection |
| CN102238588A (en) * | 2011-06-30 | 2011-11-09 | 北京邮电大学 | Window activation detection method for time division-high speed uplink packet access (TD-HSUPA) shared information channel (SICH) |
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