CN106685547B - A kind of channel detection method and device - Google Patents
A kind of channel detection method and device Download PDFInfo
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- CN106685547B CN106685547B CN201510749985.2A CN201510749985A CN106685547B CN 106685547 B CN106685547 B CN 106685547B CN 201510749985 A CN201510749985 A CN 201510749985A CN 106685547 B CN106685547 B CN 106685547B
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Abstract
The invention discloses a kind of channel detection method and devices, to reduce PUCCH channel false dismissal probability.A kind of channel detection method provided by the invention includes: the physical uplink control channel PUCCH signal power and noise power calculated in distributing antenna system on each antenna；According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, the antenna that Channel Detection is used in the distributing antenna system is selected；Using the PUCCH signal on the antenna for Channel Detection, Channel Detection is carried out.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of channel detection methods and device.
Background technique
Under distributing antenna system, the signal that user equipment (User Equipment, UE) is sent may be in this point
It is received on a certain in cloth antenna system or several antennas, rather than all antennas can receive the effective of UE transmission
Signal.
In the prior art, physical uplink control channel (Physical Uplink Control is being carried out
Channel, PUCCH) detection when, default all antennas and have received PUCCH signal, by calculate distributing antenna system in
The average PUCCH signal power of all antennas, and then calculate the corresponding signal-to-noise ratio of system.If the signal-to-noise ratio being calculated is less than
Preset thresholding, then it is assumed that UE does not send PUCCH signal, without subsequent PUCCH Channel Detection；If the letter being calculated
It makes an uproar than being greater than preset thresholding, then it is assumed that UE has sent PUCCH signal, and then carries out subsequent PUCCH Channel Detection.For example,
The distributing antenna system of one 8 antenna, it is assumed that have PUCCH signal on only a certain antenna.Noise be on all antennas all
Can be received, according to the method described above, when calculating PUCCH signal power, the PUCCH signal power of 8 antennas is averaged, in this way
It will lead to the signal-to-noise ratio that the is calculated direct losses 9db compared with practical.
As it can be seen that artificially having raised PUCCH channel false dismissal probability using the above method.Particularly, work as uplink scheduling request
When (Scheduling Request, SR) missing inspection, will cause upstream data can not timely scheduled transmission, and VOLTE voice service
More sensitive to time delay, SR missing inspection will cause transmission of voice packets not in time, and time delay is excessive, and user's communication is not smooth, when serious also
User can be caused to trigger random access procedure.
Summary of the invention
The embodiment of the invention provides a kind of channel detection method and devices, to reduce PUCCH channel false dismissal probability.
A kind of channel detection method provided in an embodiment of the present invention, comprising:
It calculates the physical uplink control channel PUCCH signal power in distributing antenna system on each antenna and makes an uproar
Acoustical power；
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, institute is selected
State the antenna that Channel Detection is used in distributing antenna system；
Using the PUCCH signal on the antenna for Channel Detection, Channel Detection is carried out.
The embodiment of the present invention according to the PUCCH signal power on each antenna in the distributing antenna system and is made an uproar
Acoustical power selects the antenna for being used for Channel Detection in the distributing antenna system, can more accurately judge whether UE has sent
PUCCH signal reduces to carry out Channel Detection using the PUCCH signal on the antenna selected in the distributing antenna system
PUCCH channel false dismissal probability, improves service feature.
Preferably, according to PUCCH signal power and noise power on each antenna in the distributing antenna system,
The antenna for being used for Channel Detection in the distributing antenna system is selected, is specifically included:
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, calculate every
The signal-to-noise ratio of one antenna；For each antenna in the distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset
When the first thresholding, determines and the antenna is selected to carry out Channel Detection；
Alternatively, determining the distribution according to the PUCCH signal power on each antenna in the distributing antenna system
Strongest two antennas of PUCCH signal power in antenna system；Calculate the letter of strongest two antennas of the PUCCH signal power
Make an uproar ratio, when the signal-to-noise ratio is greater than preset second thresholding, determine select strongest two antennas of PUCCH signal power into
Row Channel Detection.
Preferably, when being used for the antenna of Channel Detection in selecting the distributing antenna system, of the antenna of selection
Number is less than the total number of the antenna in the distributing antenna system.
To be further reduced the time of Channel Detection, promote the efficiency of Channel Detection.
Preferably, according to PUCCH signal power and noise power on each antenna in the distributing antenna system,
The signal-to-noise ratio for calculating each antenna, specifically includes:
Noise power on all antennas in the distributing antenna system is averaging, the spaced antenna system is obtained
The average noise power of system；
For each antenna in the distributing antenna system, by the PUCCH signal power on the antenna divided by this point
The average noise power of cloth antenna system obtains the signal-to-noise ratio of the antenna.
Preferably, calculating the signal-to-noise ratio of strongest two antennas of the PUCCH signal power, specifically include:
PUCCH signal power on two antennas strongest to the PUCCH signal power is averaging, and is obtained described
The average PUCCH signal power of strongest two antennas of PUCCH signal power；And in the distributing antenna system
Noise power on all antennas is averaging, and obtains the average noise power of the distributing antenna system；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the spaced antenna
The average noise power of system obtains the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
Preferably, the PUCCH signal power on each antenna calculated in distributing antenna system, specifically includes:
For each antenna in the distributing antenna system:
Obtain the position of PUCCH signal diameter on the antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal function on the antenna is obtained
Rate.
Preferably, the noise power on each antenna calculated in distributing antenna system, specifically includes:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
A kind of device of Channel Detection provided in an embodiment of the present invention, comprising:
Computing unit, for calculating PUCCH signal power and noise power in distributing antenna system on each antenna；
Selecting unit, for according on each antenna in the distributing antenna system PUCCH signal power and make an uproar
Acoustical power selects the antenna that Channel Detection is used in the distributing antenna system；
Detection unit carries out Channel Detection for utilizing the PUCCH signal on the antenna for Channel Detection.
Preferably, the selecting unit is specifically used for:
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, calculate every
The signal-to-noise ratio of one antenna；For each antenna in the distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset
When the first thresholding, determines and the antenna is selected to carry out Channel Detection；
Alternatively, determining the distribution according to the PUCCH signal power on each antenna in the distributing antenna system
Strongest two antennas of PUCCH signal power in antenna system；Calculate the letter of strongest two antennas of the PUCCH signal power
Make an uproar ratio, when the signal-to-noise ratio is greater than preset second thresholding, determine select strongest two antennas of PUCCH signal power into
Row Channel Detection.
Preferably, when the selecting unit is used for the antenna of Channel Detection in selecting the distributing antenna system, choosing
The number for the antenna selected is less than the total number of the antenna in the distributing antenna system.
Preferably, the selecting unit is according to the PUCCH signal function on each antenna in the distributing antenna system
Rate and noise power are specifically used for when calculating the signal-to-noise ratio of each antenna:
Noise power on all antennas in the distributing antenna system is averaging, the spaced antenna system is obtained
The average noise power of system；
For each antenna in the distributing antenna system, by the PUCCH signal power on the antenna divided by this point
The average noise power of cloth antenna system obtains the signal-to-noise ratio of the antenna.
Preferably, when the selecting unit calculates the signal-to-noise ratio of strongest two antennas of the PUCCH signal power, specifically
For:
PUCCH signal power on two antennas strongest to the PUCCH signal power is averaging, and is obtained described
The average PUCCH signal power of strongest two antennas of PUCCH signal power；And in the distributing antenna system
Noise power on all antennas is averaging, and obtains the average noise power of the distributing antenna system；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the spaced antenna
The average noise power of system obtains the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
Preferably, when the computing unit calculates the PUCCH signal power on each antenna in distributing antenna system,
It is specifically used for:
For each antenna in the distributing antenna system:
Obtain the position of PUCCH signal diameter on the antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal function on the antenna is obtained
Rate.
Preferably, when the computing unit calculates the noise power on each antenna in distributing antenna system, specifically
For:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
Detailed description of the invention
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 institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of flow diagram of channel detection method provided in an embodiment of the present invention；
Fig. 2 is the graph of relation of channel false dismissal probability and signal-to-noise ratio provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of Channel Detection device provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of channel detection method and devices, to reduce PUCCH channel false dismissal probability.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is in the distributing antenna system and not all when sending PUCCH signal for UE under distributing antenna system
Antenna can all receive UE transmission PUCCH signal, but in the distributing antenna system only have a certain or several days
The actual conditions of PUCCH signal are received on line, the embodiment of the invention provides a kind of channel detection methods, can reduce PUCCH
Channel false dismissal probability promotes service feature and it is possible to be further reduced the time of Channel Detection and promotes the effect of Channel Detection
Rate.Certainly, there is also ideal situations, i.e., all antennas all receive UE transmission in distributing antenna system
PUCCH signal, thus, using channel detection method provided in an embodiment of the present invention, PUCCH channel missing inspection can also be substantially reduced
Probability.Channel detection method provided in an embodiment of the present invention simply will be introduced on the whole below.
Firstly, the PUCCH channel estimation results for calculating user equipment had both contained useful in the channel estimation results
Signal, also contain useless signal (i.e. noise)；Secondly, calculating separately spaced antenna according to the channel estimation results
PUCCH signal power and noise power in system on every antenna；Again, according to every day in distributing antenna system
PUCCH signal power and noise power on line select the antenna that Channel Detection is used in the distributing antenna system；Finally,
Using the PUCCH signal on the antenna selected in the distributing antenna system, Channel Detection is carried out.
Therefore, referring to Fig. 1, a kind of channel detection method provided in an embodiment of the present invention, comprising:
Physical uplink control channel PUCCH signal function in S101, calculating distributing antenna system on each antenna
Rate and noise power；
S102, according to the PUCCH signal power and noise power on each antenna in the distributing antenna system, choosing
Select the antenna that Channel Detection is used in the distributing antenna system；
S103, the PUCCH signal on the antenna for Channel Detection, progress Channel Detection are utilized.
Above-mentioned channel detection method, such as can be executed by each functional module in base station.
Wherein, the physical uplink control channel PUCCH signal function in distributing antenna system on each antenna is calculated
The method of rate and noise power is as follows:
Preferably, calculating the PUCCH signal power on each antenna in distributing antenna system, specifically include:
For each antenna in the distributing antenna system:
Pass through the high-rise position for configuring PUCCH signal diameter on the acquisition antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal function on the antenna is obtained
Rate.
In embodiments of the present invention, by the PUCCH signal power S in single antennaantIt indicates.
Preferably, calculating the noise power on each antenna in distributing antenna system, specifically include:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
In embodiments of the present invention, by the noise power N in single antennaantIt indicates.
That is, being that will calculate multiple non-signal on the resulting antenna when calculating the noise power in single antenna
It is averaged again after the signal power summation of path position, the final noise power for obtaining the antenna.
After calculating PUCCH signal power and the noise power in distributing antenna system on each antenna, from this
Selection is used for the antenna of Channel Detection in distributing antenna system, can specifically be realized by following two method:
Method one:
According to the PUCCH signal power and noise power on each antenna in distributing antenna system, every day is calculated
The signal-to-noise ratio of line；For each antenna in distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset first thresholding
When, it determines and the antenna is selected to carry out Channel Detection.
Preferably, being calculated according to PUCCH signal power and noise power on each antenna in distributing antenna system
The signal-to-noise ratio of each antenna, specifically includes:
To being averaged after the noise power summation on all antennas in distributing antenna system, the distribution is obtained
The average noise power of antenna system；
For each antenna in distributing antenna system, by the PUCCH signal power on the antenna divided by the distribution
The average noise power of antenna system obtains the signal-to-noise ratio of the antenna.
With SNRantThe signal-to-noise ratio of single antenna is characterized, with the average noise power of N characterization distributing antenna system, then
SNRantIt may be expressed as:
SNRant=Sant/N [1]
Wherein, SantIndicate the PUCCH signal power in single antenna.
Later, for each antenna in distributing antenna system, by the signal-to-noise ratio of the antenna and preset first thresholding
It compares.If the signal-to-noise ratio of the antenna is greater than preset first thresholding, then it is assumed that have received PUCCH signal on the antenna, really
The fixed antenna can be used for subsequent Channel Detection；If the signal-to-noise ratio of the antenna is less than preset first thresholding, then it is assumed that the antenna
Upper no reception PUCCH signal, which is abandoned.
In the above method one, by by the signal-to-noise ratio of each antenna in distributing antenna system and preset first
Limit compares, and then selects the antenna that can be used for Channel Detection in the distributing antenna system.If it is determined that the distribution
There are more antennas can be used for Channel Detection in antenna system, then the PUCCH signal on the later use more antennas carries out letter
Road detection；If it is determined that there are an antennas can be used for Channel Detection in the distributing antenna system, then later use this
PUCCH signal on antenna carries out Channel Detection；If it is determined that all antennas in the distributing antenna system cannot be used for
Channel Detection then abandons all antennas in the distributing antenna system, it is believed that UE does not send PUCCH signal, therefore, just
It does not need to carry out subsequent PUCCH Channel Detection.
Method two:
According to the PUCCH signal power on each antenna in the distributing antenna system, the spaced antenna is determined
Strongest two antennas of PUCCH signal power in system；Calculate the noise of strongest two antennas of the PUCCH signal power
Than determining and strongest two antennas of the PUCCH signal power being selected to carry out when the signal-to-noise ratio is greater than preset second thresholding
Channel Detection.
Preferably, calculating the signal-to-noise ratio of strongest two antennas of the PUCCH signal power, specifically include:
It is averaged, obtains after PUCCH signal power summation on two antennas strongest to the PUCCH signal power
To the average PUCCH signal power of strongest two antennas of the PUCCH signal power；And to the spaced antenna system
It is averaged after noise power summation on all antennas in system, obtains the average noise function of the distributing antenna system
Rate；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the spaced antenna
The average noise power of system obtains the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
The average PUCCH signal power that strongest two antennas of above-mentioned PUCCH signal power are characterized with S, is characterized with SNR
The signal-to-noise ratio of strongest two antennas of PUCCH signal power, then SNR may be expressed as:
SNR=S/N [2]
Wherein, N indicates the average noise power of distributing antenna system.
After the signal-to-noise ratio for calculating strongest two antennas of PUCCH signal power in distributing antenna system, it will be distributed
The signal-to-noise ratio of strongest two antennas of PUCCH signal power is compared with preset second thresholding in formula antenna system, if should
The signal-to-noise ratio of strongest two antennas of PUCCH signal power is greater than preset second thresholding, then it is assumed that UE has sent PUCCH letter
Number, that is, PUCCH signal is had received on strongest two antennas of the PUCCH signal power, determine the PUCCH signal power most
Two strong antennas can be used for subsequent Channel Detection；If the signal-to-noise ratio of strongest two antennas of the PUCCH signal power is less than
Preset second thresholding, then it is assumed that UE does not send PUCCH signal, that is, strongest two antennas of the PUCCH signal power
It is upper to abandon strongest two antennas of the PUCCH signal power without receiving PUCCH signal, in this case with regard to being not necessarily to carry out
Subsequent PUCCH Channel Detection.
As it can be seen that preset first thresholding and the second thresholding be not identical in the above method one and method two, the first thresholding
It can sets itself according to actual needs with the second thresholding.Preferably, probability can be examined according to channel void when setting thresholding, so that
Corresponding channel void inspection probability is not more than 1% under the thresholding.
Preferably, when being used for the antenna of Channel Detection in selecting the distributing antenna system, of the antenna of selection
Number is less than the total number of the antenna in the distributing antenna system.In this way, it is possible to reduce the time of PUCCH Channel Detection, mention
The efficiency of high PUCCH Channel Detection.Certainly, when being used for the antenna of Channel Detection in selecting the distributing antenna system, choosing
The number for the antenna selected can also be equal to the total number of the antenna in distributing antenna system, and this is not limited by the present invention.
In practical applications, one of above two method may be selected, selection is examined for channel from distributing antenna system
The antenna of survey using the PUCCH signal on the antenna selected in the distributing antenna system, carries out Channel Detection in turn.
Further, simulation model is divided in the room of foundation, verifies to channel detection method provided in an embodiment of the present invention.Its
In, the room provided divides simulation model to be the distributing antenna system of 8 antennas, and enabling on two in 8 antennas antennas has PUCCH letter
Number, there is noise on 8 antennas.
Fig. 2 show the graph of relation of the channel false dismissal probability and signal-to-noise ratio that divide simulation model to obtain based on above-mentioned room.
Simulation result shown in figure is obtained in the case where identical channel void examines probability.Wherein, existing method shown in figure,
When carrying out the calculating of signal-to-noise ratio, it is to be averaged after the PUCCH signal power of 8 antennas is summed, obtains being averaged for 8 antennas
PUCCH signal power, then by the average PUCCH signal power of obtain 8 antennas divided by the average noise power of 8 antennas,
The signal-to-noise ratio for obtaining 8 antennas compares the signal-to-noise ratio and the threshold value of setting 1.9；The embodiment of the present invention shown in figure
Method one is the signal-to-noise ratio for calculating the single antenna for single antenna, the signal-to-noise ratio and the first thresholding 4.2 of setting is opposed
Than；Present invention method two shown in figure is the day line computation signal-to-noise ratio for having PUCCH signal for two, by the letter
It makes an uproar and is compared than the second thresholding 3.4 with setting.
From figure 2 it can be seen that under the premise of identical signal-to-noise ratio, compared with the conventional method, using the embodiment of the present invention
Channel false dismissal probability can be greatly lowered in the method for offer.Wherein, when signal-to-noise ratio is 2, using existing method, channel leakage
Examining probability is 2.8%；Using present invention method one, channel false dismissal probability is 0.14%；Using the embodiment of the present invention
Method two, channel false dismissal probability are 0.04%.Compared with the conventional method, channel false dismissal probability improves present invention method one
Up to 95%；Compared with prior art, channel false dismissal probability improves up to 98.57% present invention method two.
Device corresponding with above-mentioned channel detection method is described below.
Referring to Fig. 3, a kind of device of Channel Detection provided in an embodiment of the present invention, comprising:
Computing unit 11, for calculating PUCCH signal power and noise function in distributing antenna system on each antenna
Rate；
Selecting unit 12, for according on each antenna in the distributing antenna system PUCCH signal power and
Noise power selects the antenna that Channel Detection is used in the distributing antenna system；
Detection unit 13 carries out Channel Detection for utilizing the PUCCH signal on the antenna for Channel Detection.
Channel Detection device provided in an embodiment of the present invention, such as can be base station.
Preferably, when computing unit 11 calculates the PUCCH signal power on each antenna in distributing antenna system, tool
Body is used for:
For each antenna in the distributing antenna system:
Obtain the position of PUCCH signal diameter on the antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal function on the antenna is obtained
Rate.
Preferably, computing unit obtains the position of PUCCH signal diameter on the antenna when the Channel Detection device is base station
It sets, the position of PUCCH signal diameter on antenna can be specifically obtained by high-rise configuration.
Preferably, when computing unit 11 calculates the noise power on each antenna in distributing antenna system, it is specific to use
In:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
Preferably, selecting unit 12 is specifically used for:
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, calculate every
The signal-to-noise ratio of one antenna；For each antenna in the distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset
When the first thresholding, determines and the antenna is selected to carry out Channel Detection；
Alternatively, determining the distribution according to the PUCCH signal power on each antenna in the distributing antenna system
Strongest two antennas of PUCCH signal power in antenna system；Calculate the letter of strongest two antennas of the PUCCH signal power
Make an uproar ratio, when the signal-to-noise ratio is greater than preset second thresholding, determine select strongest two antennas of PUCCH signal power into
Row Channel Detection.
Wherein, above-mentioned first thresholding and the second thresholding are different values, can sets itself as needed.
Preferably, when the selecting unit 12 is used for the antenna of Channel Detection in selecting the distributing antenna system,
The number of the antenna of selection is less than the total number of the antenna in the distributing antenna system.
Preferably, selecting unit 12 is according to the PUCCH signal power on each antenna in the distributing antenna system
And noise power is specifically used for when calculating the signal-to-noise ratio of each antenna:
Noise power on all antennas in the distributing antenna system is averaging, the spaced antenna system is obtained
The average noise power of system；
For each antenna in the distributing antenna system, by the PUCCH signal power on the antenna divided by this point
The average noise power of cloth antenna system obtains the signal-to-noise ratio of the antenna.
Preferably, when selecting unit 12 calculates the signal-to-noise ratio of strongest two antennas of the PUCCH signal power, it is specific to use
In:
PUCCH signal power on two antennas strongest to the PUCCH signal power is averaging, and is obtained described
The average PUCCH signal power of strongest two antennas of PUCCH signal power；And in the distributing antenna system
Noise power on all antennas is averaging, and obtains the average noise power of the distributing antenna system；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the spaced antenna
The average noise power of system obtains the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
The embodiment of the present invention can realize above-mentioned each functional unit by entity apparatus such as processors.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of channel detection method, which is characterized in that this method comprises:
Calculate the physical uplink control channel PUCCH signal power and noise function in distributing antenna system on each antenna
Rate；
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, described point of selection
The antenna of Channel Detection is used in cloth antenna system；
Using the PUCCH signal on the antenna for Channel Detection, Channel Detection is carried out；
Wherein, according to the PUCCH signal power and noise power on each antenna in the distributing antenna system, institute is selected
The antenna for being used for Channel Detection in distributing antenna system is stated, is specifically included:
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, every day is calculated
The signal-to-noise ratio of line；For each antenna in the distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset first
When thresholding, determines and the antenna is selected to carry out Channel Detection；
Alternatively, determining the spaced antenna according to the PUCCH signal power on each antenna in the distributing antenna system
Strongest two antennas of PUCCH signal power in system；Calculate the noise of strongest two antennas of the PUCCH signal power
Than determining and strongest two antennas of the PUCCH signal power being selected to carry out when the signal-to-noise ratio is greater than preset second thresholding
Channel Detection.
2. the method according to claim 1, wherein being examined in selecting the distributing antenna system for channel
When the antenna of survey, the number of the antenna of selection is less than the total number of the antenna in the distributing antenna system.
3. the method according to claim 1, wherein according on each antenna in the distributing antenna system
PUCCH signal power and noise power, calculate the signal-to-noise ratio of each antenna, specifically include:
Noise power on all antennas in the distributing antenna system is averaging, the distributing antenna system is obtained
Average noise power；
For each antenna in the distributing antenna system, by the PUCCH signal power on the antenna divided by the distribution
The average noise power of antenna system obtains the signal-to-noise ratio of the antenna.
4. the method according to claim 1, wherein calculating strongest two antennas of the PUCCH signal power
Signal-to-noise ratio, specifically include:
PUCCH signal power on two antennas strongest to the PUCCH signal power is averaging, and obtains the PUCCH letter
The average PUCCH signal power of number strongest two antennas of power；And to all antennas in the distributing antenna system
On noise power be averaging, obtain the average noise power of the distributing antenna system；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the distributing antenna system
Average noise power, obtain the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
5. the method according to claim 1, wherein on each antenna calculated in distributing antenna system
PUCCH signal power, specifically include:
For each antenna in the distributing antenna system:
Obtain the position of PUCCH signal diameter on the antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal power on the antenna is obtained.
6. the method according to claim 1, wherein on each antenna calculated in distributing antenna system
Noise power, specifically include:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
7. a kind of device of Channel Detection, which is characterized in that the device includes:
Computing unit, for calculating the physical uplink control channel PUCCH letter in distributing antenna system on each antenna
Number power and noise power；
Selecting unit, for according to the PUCCH signal power and noise function on each antenna in the distributing antenna system
Rate selects the antenna that Channel Detection is used in the distributing antenna system；
Detection unit carries out Channel Detection for utilizing the PUCCH signal on the antenna for Channel Detection；
Wherein, the selecting unit is specifically used for:
According to the PUCCH signal power and noise power on each antenna in the distributing antenna system, every day is calculated
The signal-to-noise ratio of line；For each antenna in the distributing antenna system, when the signal-to-noise ratio of the antenna is greater than preset first
When thresholding, determines and the antenna is selected to carry out Channel Detection；
Alternatively, determining the spaced antenna according to the PUCCH signal power on each antenna in the distributing antenna system
Strongest two antennas of PUCCH signal power in system；Calculate the noise of strongest two antennas of the PUCCH signal power
Than determining and strongest two antennas of the PUCCH signal power being selected to carry out when the signal-to-noise ratio is greater than preset second thresholding
Channel Detection.
8. device according to claim 7, which is characterized in that the selecting unit is selecting the distributing antenna system
In when being used for the antenna of Channel Detection, the number of the antenna of selection is less than total of the antenna in the distributing antenna system
Number.
9. device according to claim 7, which is characterized in that the selecting unit is according in the distributing antenna system
Each antenna on PUCCH signal power and noise power be specifically used for when calculating the signal-to-noise ratio of each antenna:
Noise power on all antennas in the distributing antenna system is averaging, the distributing antenna system is obtained
Average noise power；
For each antenna in the distributing antenna system, by the PUCCH signal power on the antenna divided by the distribution
The average noise power of antenna system obtains the signal-to-noise ratio of the antenna.
10. device according to claim 7, which is characterized in that the selecting unit calculates the PUCCH signal power most
When the signal-to-noise ratio of two strong antennas, it is specifically used for:
PUCCH signal power on two antennas strongest to the PUCCH signal power is averaging, and obtains the PUCCH letter
The average PUCCH signal power of number strongest two antennas of power；And to all antennas in the distributing antenna system
On noise power be averaging, obtain the average noise power of the distributing antenna system；
By the average PUCCH signal power of strongest two antennas of the PUCCH signal power divided by the distributing antenna system
Average noise power, obtain the signal-to-noise ratio of strongest two antennas of the PUCCH signal power.
11. device according to claim 7, which is characterized in that the computing unit calculates in distributing antenna system
When PUCCH signal power on each antenna, it is specifically used for:
For each antenna in the distributing antenna system:
Obtain the position of PUCCH signal diameter on the antenna；
The signal power at the PUCCH signal path position on the antenna is calculated, the PUCCH signal power on the antenna is obtained.
12. device according to claim 7, which is characterized in that the computing unit calculates in distributing antenna system
When noise power on each antenna, it is specifically used for:
For each antenna in the distributing antenna system:
Calculate the signal power of each non-signal path position on the antenna；
The signal power of all non-signal path positions on the antenna is averaging, the noise power on the antenna is obtained.
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| CN102315904A (en) * | 2011-09-05 | 2012-01-11 | 新邮通信设备有限公司 | Method for optimizing physical uplink control channel detection and measurement |
| CN102415033A (en) * | 2009-04-30 | 2012-04-11 | 高通股份有限公司 | False detection reduction during multi-carrier operation |
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| CN103181207A (en) * | 2012-10-25 | 2013-06-26 | 华为技术有限公司 | Repair method and apparatus for leak-detection control channel |
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| US7603141B2 (en) * | 2005-06-02 | 2009-10-13 | Qualcomm, Inc. | Multi-antenna station with distributed antennas |
| US8634766B2 (en) * | 2010-02-16 | 2014-01-21 | Andrew Llc | Gain measurement and monitoring for wireless communication systems |
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| CN102415033A (en) * | 2009-04-30 | 2012-04-11 | 高通股份有限公司 | False detection reduction during multi-carrier operation |
| CN102315904A (en) * | 2011-09-05 | 2012-01-11 | 新邮通信设备有限公司 | Method for optimizing physical uplink control channel detection and measurement |
| CN103037396A (en) * | 2011-10-08 | 2013-04-10 | 京信通信系统（中国）有限公司 | Method, device and base station for detecting signals of long term evolution (LTE) uplink control channel |
| CN103181207A (en) * | 2012-10-25 | 2013-06-26 | 华为技术有限公司 | Repair method and apparatus for leak-detection control channel |
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