CN103856308B - Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals - Google Patents
Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals Download PDFInfo
- Publication number
- CN103856308B CN103856308B CN201210517152.XA CN201210517152A CN103856308B CN 103856308 B CN103856308 B CN 103856308B CN 201210517152 A CN201210517152 A CN 201210517152A CN 103856308 B CN103856308 B CN 103856308B
- Authority
- CN
- China
- Prior art keywords
- information
- channel
- received signal
- correlation
- estimation
- 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
It is an object of the invention to provide a kind of method and apparatus for the breath that regularly believed one side only really based on uplink channel signals.Wherein, when inclined determining device obtain with through the corresponding channel-estimation information of up channel received signal, cross correlation process is carried out by corresponding subcarrier spacing to the channel-estimation information, and the progress of at least one in acquired one or more cross-correlation information time domain adds up, and phase transition, with the breath that believed one side only when obtaining corresponding with the received signal.Compared with prior art, the present invention by it is acquired with through the corresponding channel-estimation information of up channel received signal, using frequency domain correlation come to up channel when be determined partially, inclined situation during so as to reflect current, change partially during real-time tracing, improve acquired in up channel when believe one side only the degree of accuracy of breath, improve the success rate of user's access, and then improve the performance of system.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of it is used to regularly believe one side only really breath based on uplink channel signals
Technology.
Background technology
If time offset estimation is not accurate enough, PUCCH (Physical Uplink Control Channel, physical uplink link
Control channel) decoding performance just will substantially reduce.Especially during user is initially accessed, due to no PUSCH
The transmission of (Physical Uplink Shared Channel, physical uplink link shared channels), each user it is initial when
Inclined estimation will be based on RACH (Random Access Channel, RACH) detection, and base station can send out the time
Adjustment orders (time advance command) to user to adjust its transmission time.But the letter that base station is received from user
Number timing may because of user mobility and multipath channel delay be distributed time variation and change in real time, therefore utilize
It is irrational that bias, which does partial compensation for the time at current time, when estimated by precedent transmission.Assistant general can reduce during larger residual
PUCCH decoding performance, or even due to message 4 ACK feedback decodings mistake, cause user access failure.Therefore need
Bias when obtaining more accurately.
The content of the invention
It is an object of the invention to provide a kind of method and apparatus for the breath that regularly believed one side only really based on uplink channel signals.
According to an aspect of the invention, there is provided a kind of side for the breath that regularly believed one side only really based on uplink channel signals
Method, wherein, this method comprises the following steps：
A obtain with through the corresponding channel-estimation information of up channel received signal, wherein, the channel-estimation information
Including at least one in the pilot tone estimated information and data estimated information corresponding to the received signal；
B carries out cross correlation process to the channel-estimation information by corresponding subcarrier spacing, one or more to obtain
Cross-correlation information；
At least one in one or more of cross-correlation information is carried out time domain and added up by c, to obtain corresponding cumulative knot
Really；
D carries out phase transition to the accumulation result, with the breath that believed one side only when obtaining corresponding with the received signal.
According to another aspect of the present invention, additionally providing a kind of is used to regularly believe one side only really breath based on uplink channel signals
When inclined determining device, wherein, the device includes：
Acquiring unit, for obtain with through the corresponding channel-estimation information of up channel received signal, wherein, it is described
Channel-estimation information includes at least one in the pilot tone estimated information and data estimated information corresponding to the received signal；
Correlation unit, for carrying out cross correlation process by corresponding subcarrier spacing to the channel-estimation information, to obtain
Obtain one or more cross-correlation information；
Summing elements, add up at least one in one or more of cross-correlation information to be carried out into time domain, to obtain
Corresponding accumulation result；
Converting unit, it is corresponding with the received signal to obtain for carrying out phase transition to the accumulation result
When believe one side only breath.
In accordance with a further aspect of the present invention, additionally provide a kind of for regularly being believed one side only really based on uplink channel signals
The receiving device of breath, including when inclined determining device as described above.
Compared with prior art, the present invention by it is acquired with through the corresponding channel of up channel received signal
Estimated information, cross correlation process, and one or more cross-correlation information to being obtained are carried out according to corresponding subcarrier spacing
In at least one carry out that time domain is cumulative and phase transition, with the breath that believed one side only when obtaining corresponding with the received signal so that
Inclined situation, changes partially during real-time tracing when can reflect current, improve acquired in up channel when believe one side only the accurate of breath
Degree, improves the success rate of user's access, and then improves the performance of system.Moreover, the present invention can also be according to receiving letter
Number signal relevant information, set up or update the subcarrier spacing, for carry out cross correlation process；Meet demand so as to obtain
Cross-correlation information, so as to be believed one side only breath according to when obtaining more accurately, improve acquired in up channel when believe one side only the standard of breath
Exactness, improves the success rate of user's access, and then improves the performance of system.Moreover, the present invention can also be to the pilot tone
Estimated information and the data estimated information carry out cross correlation process respectively, and are added up according to corresponding weight, so that
Processing is weighted to the cross-correlation information with different weights, with the breath that believed one side only when obtaining more accurately, up channel is improved
Believe one side only the degree of accuracy of breath when acquired, improves the success rate of user's access, and then improve the performance of system.Moreover, this
Invention can also using it is described when the breath that believes one side only processing is compensated to the channel-estimation information；And according to through up channel institute
Receive the corresponding component of signal of signal extraction and carry out channel estimation process, to complete the processing of channel partial compensation for the time, improve system
System performance.Moreover, the present invention can also according to the received signal when believe one side only breath trigger condition carry out to trigger when it is inclined
The determination of information, so as to improve the treatment effeciency of this method, improves systematic function.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 show according to one aspect of the invention it is a kind of be used for regularly believed one side only really based on uplink channel signals breath when
Inclined determining device schematic diagram；
Fig. 2 shows that one kind in accordance with a preferred embodiment of the present invention is used to regularly believe one side only really based on uplink channel signals
The when inclined determining device schematic diagram of breath；
What Fig. 3 showed according to a further aspect of the present invention a kind of is used to regularly believe one side only really breath based on uplink channel signals
Method flow diagram；
Fig. 4 shows that one kind in accordance with a preferred embodiment of the present invention is used to regularly believe one side only really based on uplink channel signals
The method flow diagram of breath.
Same or analogous reference represents same or analogous part in accompanying drawing.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 show according to one aspect of the invention it is a kind of be used for regularly believed one side only really based on uplink channel signals breath when
Inclined determining device schematic diagram；Wherein, inclined determining device includes acquiring unit 11, correlation unit 12, summing elements 13, conversion list when
Member 14.Specifically, acquiring unit 11 obtain with through the corresponding channel-estimation information of up channel received signal, wherein, institute
Stating channel-estimation information includes at least one in the pilot tone estimated information and data estimated information corresponding to the received signal；
12 pairs of channel-estimation informations of correlation unit carry out cross correlation process by corresponding subcarrier spacing, one or more to obtain
Cross-correlation information；At least one in one or more of cross-correlation information is carried out time domain and added up by summing elements 13, to obtain
Corresponding accumulation result；14 pairs of the converting unit accumulation result carries out phase transition, to obtain and the received signal phase
Believe one side only breath when corresponding.Wherein, when described inclined determining device include but is not limited to can arbitrarily to realize to it is described when be biased capable meter
Calculate the computing device or computing unit with determining.Wherein, the up channel includes but is not limited to uplink control channel
(PUCCH), uplink shared channel (PUSCH) or uplink sounding reference signal SRS.
Constantly worked between above-mentioned each unit, here, it will be understood by those skilled in the art that " lasting " refers to
State each unit respectively in real time, or according to the mode of operation requirement of setting or real-time adjustment, carry out channel-estimation information
Acquisition, cross correlation process, time domain are cumulative, phase transition with acquisition for the breath that believes one side only in time etc., until when inclined determining device stop obtaining
Take with through the corresponding channel-estimation information of up channel received signal.
Acquiring unit 11 obtain with through the corresponding channel-estimation information of up channel received signal, wherein, the letter
Road estimated information includes at least one in the pilot tone estimated information and data estimated information corresponding to the received signal.Specifically
Ground, acquiring unit 11 with the Relational database through the corresponding channel-estimation information of up channel received signal by with entering
Row interaction, obtains the channel-estimation information；Or with the related device in up channel receiver, such as Deplexing apparatus carry out
Interaction, is obtained after the reception signal is demultiplexed, in the pilot signal and data-signal corresponding with the reception signal
At least one, and then obtain at least one in the pilot frequency information and data message of the received signal.Here, utilizing
The channel-estimation information based on the pilot frequency information is represented, is utilizedRepresent the channel-estimation information based on the data；Its
In, i represents subcarrier sequence number, and p represents symbol sequence number, and a represents reception antenna sequence number.Acquiring unit 11 is obtainedWith
In at least one information, for example, when received signal signal format be normal PUCCH format 1/1a/1b or 2/
During 2a/2b, it can obtain simultaneouslyWithInformation；And when applied to the PUCCH format 1/1a/1b shortened
When (shortened PUCCH format 1/1a/1b), the channel estimation in last OFDM symbol will not then be made
With because last OFDM symbol is retained for detection reference signal (Sounding Reference Signal, SRS).
Here, including with through the corresponding channel-estimation information of up channel received signal with the targeted customer of partial compensation for the time need to be carried out
Channel-estimation information in corresponding, each reception antenna, each subcarrier sequence number and each symbol sequence number.
12 pairs of channel-estimation informations of correlation unit carry out cross correlation process by corresponding subcarrier spacing, to obtain one
Individual or multiple cross-correlation information.Specifically, correlation unit 12 is by the way that according to the channel-estimation information, the channel estimation is believed
The channel-estimation information with certain subcarrier spacing of breath corresponding thereto carries out cross correlation process, if for example, acquiring unit
11 obtain the channel-estimation information based on the pilot frequency information and the channel-estimation information based on the data respectively, then to institute
State the channel-estimation information based on the pilot frequency information, the channel-estimation information with certain subcarrier spacing corresponding thereto
Carry out cross correlation process；To the channel-estimation information based on the data message similarly, so as to obtain one or more mutual
Relevant information.After upper example, for example, utilizingThe channel-estimation information with certain subcarrier spacing is represented, wherein, s tables
Show the interval between subcarrier, the subcarrier can set according to system default or is determined according to signal relevant information；
This, the main character changed according to the Fourier transformation time, for any real number t0If, h (t)=f (t-t0), thenTherefore, cross correlation process is carried out by corresponding subcarrier spacing to the channel-estimation information, then it is right
Channel-estimation information based on pilot tone, has：
(formula 1)
To the channel-estimation information based on data, have：
(formula 2)
So as to obtain with the pilot frequency information sum it is believed that the corresponding one or more cross-correlation information of manner of breathing.Here, sym
The signal after ovennodulation sent for up channel, can offset when correlation, therefore without obtaining the tool on sym
Body numerical value.
At least one in one or more of cross-correlation information is carried out time domain and added up by summing elements 13, to obtain correspondence
Accumulation result.Specifically, at least one in one or more cross-correlation information that summing elements 13 are calculated correlation unit 12
Individual progress time domain adds up, and after upper example, the channel-estimation information includes the pilot tone estimated information and the data estimated information
When, as shown in Equation 3：(formula 3)
So as to obtain corresponding accumulation result.
14 pairs of the converting unit accumulation result carries out phase transition, during obtaining corresponding with the received signal
Believe one side only breath.Specifically, 14 pairs of accumulation results of converting unit, by using the mode of phase transition, and with corresponding coefficient
Be multiplied, thus it is corresponding with the received signal when believe one side only breath.After upper example, as shown in Equation 4：
(formula 4)
Wherein, the Δ f is at intervals of 15KHz between the interval between system subcarrier, such as LTE subcarriers.
Preferably, inclined determining device also includes interval determining unit (not shown) when described, wherein, the interval determines single
Member is set up according to the signal relevant information of the received signal or updates the subcarrier spacing, for carrying out at cross-correlation
Reason.Specifically, interval determining unit is according to the signal relevant information of the received signal, such as signal format or signal rate
Deng if the existing subcarrier spacing s, being updated to the subcarrier spacing；If in the absence of the subcarrier spacing
S, then set up to the subcarrier spacing, for carrying out cross correlation process.
Preferably, when the channel-estimation information includes the pilot tone estimated information and the data estimated information, institute
Stating correlation unit 12 can be to the channel-estimation information by corresponding subcarrier spacing progress cross correlation process, to obtain one
Or multiple cross-correlation information, wherein, one or more of cross-correlation information include corresponding with the pilot tone estimated information
One or more pilot tone cross-correlation information, and the one or more data cross-correlation letter corresponding with the data estimated information
Breath.Specifically, when the channel-estimation information includes the pilot tone estimated information and the data estimated information, the correlation
Unit 12 can to the one or more pilot tone cross-correlation information corresponding with the pilot tone estimated information, and with it is described
The corresponding one or more data cross-correlation information of data estimated information carry out cross-correlation by corresponding subcarrier spacing respectively
Processing, wherein, the processing mode and the processing mode of correlation unit 12 described in Fig. 1 are same or similar, and here is omitted,
And be incorporated herein in the form of reference.
It is highly preferred that the summing elements 13 can be estimated according to the weight information of the pilot tone estimated information with the data
The weight information of information is counted, to corresponding to the cross-correlation information corresponding to the pilot tone estimated information and the data estimated information
Cross-correlation information press weight accumulation process.Specifically, when the channel-estimation information includes the pilot frequency information and the number
It is believed that breath, the weight information for the pilot frequency information that the summing elements 13 can be adjusted by system intialization or in real time with it is described
The weight information of data message, to mutual corresponding to the cross-correlation information and the data message corresponding to the pilot frequency information
Close information and press weight accumulation process.Wherein, the weight can be by the signal relevant information according to the received signal, such as
Signal format, translational speed etc., are carried out true to the weight information of the pilot frequency information and the weight information of the data message
It is fixed.
Preferably, inclined determining device also includes compensating unit (not shown) when described, wherein, the compensating unit utilizes institute
Believed one side only breath when stating, and processing is compensated to the channel-estimation information.Specifically, compensating unit is determined using converting unit 14
When believe one side only breath, processing is compensated to received signal, further, Data Detection processing etc. can also be carried out so that
To the received signal when be adjusted partially.
Preferably, the acquiring unit 11 can be obtained through up channel received signal；From the received signal
Corresponding targeted customer's signal is extracted, wherein, targeted customer's signal includes the pilot frequency information sum of the received signal
It is believed that at least one in breath；Channel estimation process is carried out to targeted customer's signal, to obtain the channel-estimation information, its
In, the channel-estimation information includes at least one in the pilot tone estimated information and the data estimated information, the pilot tone
Estimated information and the data estimated information correspond respectively to the pilot frequency information and the data message.Specifically, it is described to obtain
Unit 11 is taken to be obtained by various communication protocols through up channel received signal；And such as demultiplexing mode is utilized, from
Channel-estimation information corresponding with the pilot frequency information and data message is extracted in the received signal；Or carried by other
Mode is taken, is extracted only from the received signal in channel-estimation information corresponding with the pilot frequency information and data message
One etc.；By using the mode such as channel compensation or data sequence compensation, targeted customer's signal is carried out at channel estimation
Reason, to obtain the channel-estimation information.For example, when the up channel includes PUCCH, the acquiring unit 11 is by obtaining
Learn from else's experience PUCCH received signals, demultiplexed to described through PUCCH received signals, obtain the pilot tone letter of received signal
Breath and data message；The pilot frequency information and data message of the received signal in targeted customer's signal are carried out respectively
Channel estimation process, to obtain the channel-estimation information.
Fig. 2 shows that one kind in accordance with a preferred embodiment of the present invention is used to regularly believe one side only really based on uplink channel signals
The when inclined determining device schematic diagram of breath；Wherein, inclined determining device includes detection unit 15 ', acquiring unit 11 ', correlation when described
Unit 12 ', summing elements 13 ', converting unit 14 '.Specifically, detection unit 15 ', which detects whether to meet, determines described received
Signal when believe one side only the trigger condition of breath；When meeting the trigger condition, acquiring unit 11 ' is obtained with being received through up channel
The corresponding channel-estimation information of signal, wherein, the channel-estimation information includes the pilot tone corresponding to the received signal
At least one in estimated information and data estimated information；Correlation unit 12 ' presses corresponding subcarrier to the channel-estimation information
Interval carries out cross correlation process, to obtain one or more cross-correlation information；Summing elements 13 ' will be one or more of mutual
Close the progress time domain of at least one in information to add up, to obtain corresponding accumulation result；Converting unit 14 ' is entered to the accumulation result
Line phase is changed, with the breath that believed one side only when obtaining corresponding with the received signal.Wherein, the correlation unit 12 ', cumulative list
Member 13 ', converting unit 14 ' are identical or essentially identical with corresponding intrument shown in Fig. 1 respectively, therefore here is omitted, and by drawing
Mode is incorporated herein.
Constantly worked between above-mentioned each unit, here, it will be understood by those skilled in the art that " lasting " refers to
State each unit difference in real time, or required according to the mode of operation of setting or real-time adjustment, the detection of progress trigger condition,
The acquisition of channel-estimation information, cross correlation process, time domain are cumulative, phase transition with acquisition for the breath that believes one side only in time etc., until when it is inclined
Determining device stop obtaining with through the corresponding channel-estimation information of up channel received signal.
Detection unit 15 ' detect whether to meet determine the received signal when believe one side only the trigger condition of breath.Specifically,
Detection unit 15 ' is by the detection cycle according to system intialization or according to predetermined detection mode, to the received signal
When the believe one side only trigger condition of breath detected；Wherein, the trigger condition includes but is not limited to be initially accessed the breath mistake that constantly believes one side only
(the regularly inclined threshold value more than one) or stopping carry out PUSCH transmission and exceed certain time threshold value etc. greatly.When meeting the trigger condition,
Acquiring unit 11 ' obtain with through the corresponding channel-estimation information of up channel received signal, wherein, the channel estimation is believed
Breath includes at least one in pilot tone estimated information and data estimated information corresponding to the received signal.Wherein, it is described to obtain
Take the acquisition modes of mode and acquiring unit 11 described in Fig. 1 same or similar, therefore here is omitted, and the side for passing through reference
Formula is incorporated herein.
What Fig. 3 showed according to a further aspect of the present invention a kind of is used to regularly believe one side only really breath based on uplink channel signals
Method flow diagram.Specifically, in step s1, when inclined determining device obtain with through the corresponding letter of up channel received signal
Road estimated information, wherein, the channel-estimation information includes the pilot tone estimated information and data corresponding to the received signal
At least one in estimated information；In step s2, when inclined determining device the channel-estimation information press corresponding subcarrier
Every carrying out cross correlation process, to obtain one or more cross-correlation information；In step s3, when inclined determining device will be one
Or at least one in multiple cross-correlation information carries out time domain and added up, to obtain corresponding accumulation result；In step s4, when it is partially true
Determine device and phase transition is carried out to the accumulation result, with the breath that believed one side only when obtaining corresponding with the received signal.Wherein,
The up channel includes but is not limited to uplink control channel (PUCCH), uplink shared channel (PUSCH) or up
Link detection reference signal SRS.
Constantly worked between above steps, here, it will be understood by those skilled in the art that " lasting " refers to
State each step respectively in real time, or according to the mode of operation requirement of setting or real-time adjustment, carry out channel-estimation information
Acquisition, cross correlation process, time domain are cumulative, phase transition with acquisition for the breath that believes one side only in time etc., until when inclined determining device stop obtaining
Take with through the corresponding channel-estimation information of up channel received signal.
In step s1, when inclined determining device obtain with through the corresponding channel estimation letter of up channel received signal
Breath, wherein, the channel-estimation information includes the pilot tone estimated information and data estimated information corresponding to the received signal
In at least one.Specifically, in step s1, when inclined determining device pass through with corresponding with through up channel received signal
The Relational database of channel-estimation information interact, obtain the channel-estimation information；Or with up channel receiver
In related device, such as Deplexing apparatus interacts, and obtains after the reception signal demultiplexing, with the reception signal phase
At least one in corresponding pilot signal and data-signal, so obtain the received signal pilot frequency information sum it is believed that
At least one in breath.Here, utilizingThe channel-estimation information based on the pilot frequency information is represented, is utilizedRepresent base
In the channel-estimation information of the data；Wherein, i represents subcarrier sequence number, and p represents symbol sequence number, and a represents reception antenna sequence
Number.In step s1, when inclined determining device obtainWithIn at least one information, for example, working as received signal
Signal format be normal PUCCH format 1/1a/1b or 2/2a/2b when, can obtain simultaneouslyWithLetter
Breath；And when applied to PUCCH format 1/1a/1b (the shortenedPUCCH format 1/1a/1b) shortened, at last
Channel estimation in the OFDM symbol of position will not then be used, because last OFDM symbol is retained for detection reference signal
(Sounding Reference Signal, SRS).Here, believing with through the corresponding channel estimation of up channel received signal
Breath includes, each reception antenna corresponding with that need to carry out the targeted customer of partial compensation for the time, each subcarrier sequence number and each symbol
Channel-estimation information in number sequence number.
In step s2, when inclined determining device to the channel-estimation information by corresponding subcarrier spacing carry out cross-correlation
Processing, to obtain one or more cross-correlation information.Specifically, in step s2, when inclined determining device pass through according to the letter
Road estimated information, the channel-estimation information with certain subcarrier spacing of the channel-estimation information corresponding thereto is carried out
Cross correlation process, if for example, in step s1, when inclined determining device obtain the channel estimation based on the pilot frequency information respectively
Information and the channel-estimation information based on the data, then to the channel-estimation information based on the pilot frequency information and its
The corresponding channel-estimation information with certain subcarrier spacing carries out cross correlation process；The data message is based on to described
Channel-estimation information similarly, so as to obtain one or more cross-correlation information.After upper example, for example, utilizingRepresent tool
There is the channel-estimation information of certain subcarrier spacing, wherein, s represents the interval between subcarrier, and the subcarrier can be according to being
System default setting is determined according to signal relevant information；Here, the main character changed according to the Fourier transformation time, right
In any real number t0If, h (t)=f (t-t0), thenTherefore, to the channel-estimation information by corresponding
Subcarrier spacing carries out cross correlation process, then to the channel-estimation information based on pilot tone, has：
(formula 5)
To the channel-estimation information based on data, have：(formula 6)
So as to obtain with the pilot frequency information sum it is believed that the corresponding one or more cross-correlation information of manner of breathing.Here, sym
The signal after ovennodulation sent for up channel, can offset when correlation, therefore without obtaining the tool on sym
Body numerical value.
In step s3, when inclined determining device by one or more of cross-correlation information at least one carry out time domain tire out
Plus, to obtain corresponding accumulation result.Specifically, in step s3, when inclined determining device by one calculated in step s2
Or at least one in multiple cross-correlation information carries out time domain and added up, after upper example, the channel-estimation information is estimated including the pilot tone
When counting information and the data estimated information, as shown in Equation 7：
(formula 7)
So as to obtain corresponding accumulation result.
In step s4, when inclined determining device to the accumulation result carry out phase transition, with obtain received with described
Signal it is corresponding when believe one side only breath.Specifically, in step s4, when inclined determining device to the accumulation result, by using phase
The mode of position conversion, and with corresponding multiplication so that it is corresponding with the received signal when believe one side only breath.After upper
Example, as shown in Equation 8：(formula 8)
Wherein, the Δ f is at intervals of 15KHz between the interval between system subcarrier, such as LTE subcarriers.
Preferably, when described inclined determining device also include step s6 (not shown), wherein, in step s6, when determine partially
Device is set up according to the signal relevant information of the received signal or updates the subcarrier spacing, for carrying out cross-correlation
Processing.Specifically, in step s6, when inclined determining device according to the signal relevant information of the received signal, such as signal lattice
Formula or signal rate etc., if the existing subcarrier spacing s, is updated to the subcarrier spacing；If in the absence of institute
Subcarrier spacing s is stated, then the subcarrier spacing is set up, for carrying out cross correlation process.
Preferably, when the channel-estimation information includes the pilot tone estimated information and the data estimated information,
In step s2, when inclined determining device can to the channel-estimation information by corresponding subcarrier spacing carry out cross correlation process,
To obtain one or more cross-correlation information, wherein, one or more of cross-correlation information include estimating to believe with the pilot tone
The corresponding one or more pilot tone cross-correlation information of manner of breathing, and the one or more numbers corresponding with the data estimated information
According to cross-correlation information.Specifically, when the channel-estimation information includes the pilot tone estimated information and the data estimated information
When, in step s2, when inclined determining device can be to the one or more pilot tones corresponding with the pilot tone estimated information
Cross-correlation information, and the one or more data cross-correlation information corresponding with the data estimated information press corresponding respectively
Subcarrier spacing carries out cross correlation process, wherein, the processing mode is identical with the processing mode of step s2 described in Fig. 3 or phase
Seemingly, here is omitted, and is incorporated herein in the form of reference.
It is highly preferred that in step s3, when inclined determining device can according to the weight information of the pilot tone estimated information with
The weight information of the data estimated information, estimates the cross-correlation information corresponding to the pilot tone estimated information and the data
Cross-correlation information corresponding to information presses weight accumulation process.Specifically, when the channel-estimation information is believed including the pilot tone
Breath and the data message, in step s3, when the pilot tone that can be adjusted by system intialization or in real time of inclined determining device
The weight information of the weight information of information and the data message, to the cross-correlation information corresponding to the pilot frequency information and described
Cross-correlation information corresponding to data message presses weight accumulation process.Wherein, the weight can be by being received according to described
The signal relevant information of signal, such as signal format, translational speed, to weight information and the data of the pilot frequency information
The weight information of information is determined.
Preferably, when described inclined determining device also include step s7 (not shown), wherein, in step s7, when determine partially
Device using it is described when believe one side only breath, processing is compensated to the channel-estimation information.Specifically, in step s7, when it is partially true
Believed one side only breath when determining device using determined by step s4, and processing is compensated to received signal, further, can be with
Carry out Data Detection processing etc., thus to the received signal when be adjusted partially.
Preferably, in step s1, when inclined determining device can obtain through up channel received signal；Connect from described
Corresponding targeted customer's signal is extracted in the collection of letters number, wherein, targeted customer's signal includes the pilot tone of the received signal
At least one in information and data message；Channel estimation process is carried out to targeted customer's signal, estimated with obtaining the channel
Information is counted, wherein, the channel-estimation information includes at least one in the pilot tone estimated information and the data estimated information,
The pilot tone estimated information and the data estimated information correspond respectively to the pilot frequency information and the data message.Specifically
Ground, in step s1, when inclined determining device can by various communication protocols, obtain through up channel received signal；And profit
With such as mode such as demultiplexing, channel estimation corresponding with the pilot frequency information and data message is extracted from the received signal
Information；Or by other extracting modes, extracted and the pilot frequency information and data message pair only from the received signal
One etc. in the channel-estimation information answered；By using the mode such as channel compensation or data sequence compensation, the target is used
Family signal carries out channel estimation process, to obtain the channel-estimation information.For example, when the up channel includes PUCCH,
In step s1, when inclined determining device by obtaining through PUCCH received signals, to it is described through PUCCH received signals carry out
Demultiplexing, obtains the pilot frequency information and data message of received signal；Letter is received to described in targeted customer's signal
Number pilot frequency information and data message carry out channel estimation process respectively, to obtain the channel-estimation information.
Fig. 4 shows that one kind in accordance with a preferred embodiment of the present invention is used to regularly believe one side only really based on uplink channel signals
The method flow diagram of breath.Specifically, in step s5 ', when inclined determining device detect whether to meet and determine the received signal
When believe one side only the trigger condition of breath；When meeting the trigger condition, in step s1 ', when inclined determining device obtain with through up
The corresponding channel-estimation information of channel received signal, wherein, the channel-estimation information includes the received signal institute
At least one in corresponding pilot tone estimated information and data estimated information；In step s2 ', when inclined determining device to the channel
Estimated information carries out cross correlation process by corresponding subcarrier spacing, to obtain one or more cross-correlation information；In step s3 '
In, when inclined determining device by one or more of cross-correlation information at least one carry out time domain add up, it is corresponding to obtain
Accumulation result；In step s4 ', when inclined determining device to the accumulation result carry out phase transition, with obtain connect with described
Believe one side only breath when collecting mail number corresponding.Wherein, the step s2 ', step s3 ', step s4 ' step corresponding with shown in Fig. 3 respectively
It is identical or essentially identical, therefore here is omitted, and be incorporated herein by reference.
Constantly worked between above steps, here, it will be understood by those skilled in the art that " lasting " refers to
Each step difference is stated in real time, or according to the mode of operation of setting or real-time adjustment to require, the detection of progress trigger condition,
The acquisition of channel-estimation information, cross correlation process, time domain are cumulative, phase transition with acquisition for the breath that believes one side only in time etc., until when it is inclined
Determining device stop obtaining with through the corresponding channel-estimation information of up channel received signal.
In step s5 ', when inclined determining device detect whether to meet determine the received signal when believe one side only the touching of breath
Clockwork spring part.Specifically, in step s5 ', when inclined determining device by the detection cycle according to system intialization or according to predetermined
Detection mode, when the believe one side only trigger condition of breath to the received signal is detected；Wherein, the trigger condition include but
Be not limited to be initially accessed constantly believe one side only breath it is excessive (more than one timing partially threshold value) or stop carry out PUSCH transmission exceed certain time
Threshold value etc..When meeting the trigger condition, in step s1 ', when inclined determining device obtain with through up channel received signal
Corresponding channel-estimation information, wherein, the channel-estimation information includes the pilot tone estimation corresponding to the received signal
At least one in information and data estimated information.Wherein, the acquisition modes are identical with the acquisition modes of step s1 described in Fig. 3
Or it is similar, therefore here is omitted, and be incorporated herein by reference.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.This
Outside, it is clear that the word of " comprising " one is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in device claim is multiple
Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade word is used for table
Show title, and be not offered as any specific order.
Claims (15)
1. a kind of method for the breath that regularly believed one side only really based on uplink channel signals, wherein, this method comprises the following steps：
A obtain with through the corresponding channel-estimation information of up channel received signal, wherein, the channel-estimation information includes
Pilot tone estimated information and data estimated information corresponding to the received signal, the signal format of the received signal is
At least any one in form 1/1a/1b/2/2a/2b in PUCCH channels；
B carries out cross correlation process to the channel-estimation information by corresponding subcarrier spacing, one or more mutual to obtain
Close information；
At least one in one or more of cross-correlation information is carried out time domain and added up by c, to obtain corresponding accumulation result；
D carries out phase transition to the accumulation result, with the breath that believed one side only when obtaining corresponding with the received signal.
2. according to the method described in claim 1, wherein, this method also includes：
- according to the signal relevant information of the received signal, set up or update the subcarrier spacing, for carrying out cross-correlation
Processing.
3. according to the method described in claim 1, wherein, the channel-estimation information includes the pilot tone estimated information and described
Data estimated information；
Wherein, the step b includes：
- corresponding subcarrier spacing progress cross correlation process is pressed to the channel-estimation information, it is one or more mutual to obtain
Information is closed, wherein, one or more of cross-correlation information include corresponding with the pilot tone estimated information one or more
Pilot tone cross-correlation information, and the one or more data cross-correlation information corresponding with the data estimated information.
4. method according to claim 3, wherein, the step c includes：
- according to the weight information and the weight information of the data estimated information of the pilot tone estimated information, the pilot tone is estimated
Count the cross-correlation information corresponding to information and the cross-correlation information corresponding to the data estimated information presses weight accumulation process.
5. method according to any one of claim 1 to 4, wherein, this method also includes：
- using it is described when believe one side only breath, processing is compensated to the channel-estimation information.
6. method according to any one of claim 1 to 4, wherein, the step a includes：
- obtain through up channel received signal；
- corresponding targeted customer's signal is extracted from the received signal, wherein, targeted customer's signal includes the institute
Receive the pilot frequency information and data message of signal；
- channel estimation process is carried out to targeted customer's signal, to obtain the channel-estimation information, wherein, the channel
Estimated information includes the pilot tone estimated information and the data estimated information, the pilot tone estimated information and data estimation
Information corresponds respectively to the pilot frequency information and the data message.
7. method according to any one of claim 1 to 4, wherein, this method also includes：
- detect whether to meet determine the received signal when believe one side only the trigger condition of breath；
Wherein, the step a includes：
- when meeting the trigger condition, obtain with through the corresponding channel-estimation information of up channel received signal, wherein,
The channel-estimation information includes the pilot tone estimated information and data estimated information corresponding to the received signal.
8. a kind of when inclined determining device for the breath that regularly believed one side only really based on uplink channel signals, wherein, the device includes：
Acquiring unit, for obtain with through the corresponding channel-estimation information of up channel received signal, wherein, the channel
Estimated information includes the pilot tone estimated information and data estimated information corresponding to the received signal, the received signal
Signal format is at least any one in the form 1/1a/1b/2/2a/2b in PUCCH channels；
Correlation unit, for carrying out cross correlation process by corresponding subcarrier spacing to the channel-estimation information, to obtain one
Individual or multiple cross-correlation information；
Summing elements, add up at least one in one or more of cross-correlation information to be carried out into time domain, to obtain correspondence
Accumulation result；
Converting unit, for carrying out phase transition to the accumulation result, during obtaining corresponding with the received signal
Believe one side only breath.
9. inclined determining device when according to claim 8, wherein, the device also includes：
Determining unit is spaced, for the signal relevant information according to the received signal, sets up or updates between the subcarrier
Every for carrying out cross correlation process.
10. inclined determining device when according to claim 8, wherein, the channel-estimation information is estimated including the pilot tone
Information and the data estimated information；
Wherein, the correlation unit is used for：
- corresponding subcarrier spacing progress cross correlation process is pressed to the channel-estimation information, it is one or more mutual to obtain
Information is closed, wherein, one or more of cross-correlation information include corresponding with the pilot tone estimated information one or more
Pilot tone cross-correlation information, and the one or more data cross-correlation information corresponding with the data estimated information.
11. inclined determining device when according to claim 10, wherein, the summing elements are used for：
- according to the weight information and the weight information of the data estimated information of the pilot tone estimated information, the pilot tone is estimated
Count the cross-correlation information corresponding to information and the cross-correlation information corresponding to the data estimated information presses weight accumulation process.
12. the when inclined determining device according to any one of claim 8 to 11, wherein, the device also includes：
Compensating unit, for using it is described when believe one side only breath, processing is compensated to the channel-estimation information.
13. the when inclined determining device according to any one of claim 8 to 11, wherein, the acquiring unit is used for：
- obtain through up channel received signal；
- corresponding targeted customer's signal is extracted from the received signal, wherein, targeted customer's signal includes the institute
Receive the pilot frequency information and data message of signal；
- channel estimation process is carried out to targeted customer's signal, to obtain the channel-estimation information, wherein, the channel
Estimated information includes the pilot tone estimated information and the data estimated information, the pilot tone estimated information and data estimation
Information corresponds respectively to the pilot frequency information and the data message.
14. the when inclined determining device according to any one of claim 8 to 11, wherein, the device also includes：
Detection unit, for detecting whether meet determine the received signal when believe one side only the trigger condition of breath；
Wherein, the acquiring unit is used for：
- when meeting the trigger condition, obtain with through the corresponding channel-estimation information of up channel received signal, wherein,
The channel-estimation information includes the pilot tone estimated information and data estimated information corresponding to the received signal.
15. a kind of receiving device for the breath that regularly believed one side only really based on uplink channel signals, including as in claim 8 to 14
When inclined determining device described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517152.XA CN103856308B (en) | 2012-12-05 | 2012-12-05 | Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517152.XA CN103856308B (en) | 2012-12-05 | 2012-12-05 | Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103856308A CN103856308A (en) | 2014-06-11 |
| CN103856308B true CN103856308B (en) | 2017-09-15 |
Family
ID=50863556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210517152.XA Active CN103856308B (en) | 2012-12-05 | 2012-12-05 | Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103856308B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733561B (en) * | 2016-08-12 | 2019-12-13 | 华为技术有限公司 | Signal transmitting apparatus, signal detecting apparatus and method |
| CN114374500B (en) * | 2020-10-15 | 2024-09-03 | 瑞昱半导体股份有限公司 | Receiver circuit and method capable of accurately estimating signal time bias |
| CN114884538B (en) * | 2022-07-11 | 2022-10-25 | 四川创智联恒科技有限公司 | Time offset estimation method and system for NR uplink control channel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217818A (en) * | 2008-01-03 | 2008-07-09 | 北京北方烽火科技有限公司 | A ranging code detecting method of base station receiver |
| CN102263721A (en) * | 2010-05-31 | 2011-11-30 | 中兴通讯股份有限公司 | Method for estimating time bias of uplink signals, base station and OFDMA (optical frequency division multiple access) system |
| CN102325119A (en) * | 2011-09-19 | 2012-01-18 | 武汉邮电科学研究院 | Joint estimation method of time deviation and frequency deviation |
-
2012
- 2012-12-05 CN CN201210517152.XA patent/CN103856308B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217818A (en) * | 2008-01-03 | 2008-07-09 | 北京北方烽火科技有限公司 | A ranging code detecting method of base station receiver |
| CN102263721A (en) * | 2010-05-31 | 2011-11-30 | 中兴通讯股份有限公司 | Method for estimating time bias of uplink signals, base station and OFDMA (optical frequency division multiple access) system |
| CN102325119A (en) * | 2011-09-19 | 2012-01-18 | 武汉邮电科学研究院 | Joint estimation method of time deviation and frequency deviation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103856308A (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102065048B (en) | Time domain joint estimation method for OFDM frame synchronization, frequency synchronization and symbol fine synchronization | |
| US9571217B2 (en) | Method and apparatus for detecting inter-cell interference in mobile communication system | |
| CN110290581A (en) | Quick time-frequency synchronization method and terminal in a kind of 5G system | |
| KR101625244B1 (en) | Method and apparatus for offset estimation in mobile communication system | |
| CN102780673A (en) | Timing acquisition and mode and guard detection for an OFDM transmission | |
| CN101820321B (en) | Detection method for LTE downlink subsidiary synchronizing channel | |
| GB2466904A (en) | System and method for locating UMTS user equipment using measurement reports | |
| CN101267419B (en) | A time advance adjustment method and device for OFDM symbol timing | |
| CN103856308B (en) | Method and apparatus for the breath that regularly believed one side only really based on uplink channel signals | |
| CN108683482B (en) | Method and device for estimating timing position | |
| CN101465833A (en) | Synchronization method and apparatus for OFDM signal timing | |
| CN103841072B (en) | Method and apparatus for detecting the lead code in PRACH received data | |
| CN110881215B (en) | Five-window combined timing advance estimation calibration method and system thereof | |
| CN105306127B (en) | Mobile communication timing estimation method and device | |
| CN102480441B (en) | Channel estimation method and system | |
| CN115002894A (en) | Uplink timing synchronization method, device, equipment and storage medium | |
| CN102647382A (en) | Integer frequency offset estimation method and integer frequency offset estimation device | |
| CN105072060A (en) | DTX determination method and apparatus of physical uplink control channel, and base station | |
| CN105939298B (en) | A kind of method and device measuring distance of mobile terminal | |
| WO2015066866A1 (en) | Method and device for detecting secondary synchronous signal, computer program and storage medium | |
| CN101621493B (en) | OFDM frequency offset estimation judgment method | |
| CN101667990B (en) | OFDM frequency offset joint estimation method | |
| CN103856307B (en) | A kind of method and apparatus for being used to determine the frequency deviation information through PUCCH received signals | |
| EP2991298B1 (en) | Channel equalization method and device, and receiver | |
| WO2013091155A1 (en) | Carrier frequency offset estimation method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201206 ningqiao Road, Pudong New Area China (Shanghai) free trade test area, Pudong New Area, Shanghai Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong New Area Jinqiao Ning Road, Shanghai, No. 388 Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| CP03 | Change of name, title or address |