CN104137599B - A kind of detection method and device - Google Patents
A kind of detection method and device Download PDFInfo
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- CN104137599B CN104137599B CN201280002565.2A CN201280002565A CN104137599B CN 104137599 B CN104137599 B CN 104137599B CN 201280002565 A CN201280002565 A CN 201280002565A CN 104137599 B CN104137599 B CN 104137599B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
An embodiment of the present invention provides a kind of detection methods, including：Calculate the signal interference ratio of time slot；Judge whether the signal interference ratio reaches predetermined threshold value；If so, having data transmission in time slot described in notice base station.The embodiment of the present invention additionally provides a kind of detection device, using the present invention, it can be achieved that being detected to the data in the time slot during CPC not transmission data, it is ensured that the Stability and dependability of communication system.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of detection method and device.
Background technology
At permanent online (Continuous Connectivity for the Packet Data, abbreviation CPC) of the prior art
In introduce special physical controlling channel of upward (Dedicated Physical Control Channel, abbreviation DPCCH)
Discontinuous transmission realizes the cycle that data send, do not send, send.During this discontinuous transmission, DPCCH is always
Carry out transmission data according to predefined pattern, while base station carries out power control adjusting according to predefined pattern, to ensure communication system
The stability and reliability of energy.But it is rapidly growing with intelligent terminal such as mobile phone, tablet computer etc., user may be predetermined
CPC does not initiate the small business such as web page browsing etc. of time short data during transmission data under adopted pattern, but in the prior art
In, it can't be detected for the data in the time slot during CPC not transmission data, base station is not aware that data at this time
It sends, therefore can not accomplish that real-time power control is adjusted.Especially under fading channel, no power control adjusting is possible to communication system
The stability and reliability of energy adversely affect, and the performance of communication system is caused to decline, the final business experience for influencing user.
Therefore, the data how detected in time slots of the CPC not during transmission data become this field urgent problem to be solved.
Invention content
An embodiment of the present invention provides a kind of detection method and device, it can be achieved that the time slot during CPC not transmission data
Interior data are detected, it is ensured that the Stability and dependability of communication system.
First aspect of the embodiment of the present invention provides a kind of detection method, it may include：
Calculate the signal interference ratio of time slot；
Judge whether the signal interference ratio reaches predetermined threshold value；
If so, having data transmission in time slot described in notice base station.
In the first possible implementation, the signal interference ratio of time slot is calculated, it may include：
Maximum-ratio combing processing is made to the symbol in time slot, obtains the symbol after maximum-ratio combing；
According to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate leading in the time slot
The average amplitude of frequency symbol；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter of the time slot is calculated
Dry ratio.
The possible realization method of with reference to first aspect the first, in second of possible realization method, in time slot
Symbol make maximum-ratio combing processing, obtain the symbol after maximum-ratio combing, can be calculated by following formula：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
Second of possible realization method with reference to first aspect, in the third possible realization method, according to described
The pilot number used in symbol and the time slot after maximum-ratio combing calculates the average amplitude of the frequency pilot sign in the time slot,
It can be calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
The third possible realization method with reference to first aspect, in the 4th kind of possible realization method, according to described
Average noise energy in the average amplitude of frequency pilot sign and the time slot, calculates the signal interference ratio of the time slot, can be by as follows
Formula calculates：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
The first or second or third with reference to first aspect or with reference to first aspect or the 4th kind of possible realization method,
In 5th kind of possible realization method, judge whether the signal interference ratio reaches predetermined threshold value, it may include：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
The 5th kind of possible realization method with reference to first aspect, in the 6th kind of possible realization method, it may include：
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of both interior frequency pilot signs obtains reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
Second aspect of the embodiment of the present invention provides a kind of detection device, it may include：
Computing unit, the signal interference ratio for calculating time slot；
Judging unit, for judging whether the signal interference ratio reaches predetermined threshold value；If so, in time slot described in notice base station
There is data transmission.
In the first possible implementation, described device may also include：
Combining unit obtains the symbol after maximum-ratio combing for making maximum-ratio combing processing to the symbol in time slot；
The computing unit be additionally operable to according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses
Calculate the average amplitude of the frequency pilot sign in the time slot；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter of the time slot is calculated
Dry ratio.
In conjunction with the first possible realization method of second aspect, in second of possible realization method, the merging
Unit makees maximum-ratio combing processing to the symbol in time slot, obtains the symbol after maximum-ratio combing, can be calculated by following formula：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
In conjunction with second of possible realization method of second aspect, in the third possible realization method, the calculating
Unit according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate the pilot tone in the time slot and accord with
Number average amplitude, can be calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
In conjunction with the third possible realization method of second aspect, in the 4th kind of possible realization method, the calculating
For unit according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter for calculating the time slot is dry
Than that can be calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
In conjunction with second aspect or the first or second or third or the 4th kind of possible realization method of second aspect are combined,
In 5th kind of possible realization method, the computing unit can be additionally used in the signal interference ratio of current time slots and at least previous time slot
Signal interference ratio add up；
The judging unit judges whether the signal interference ratio reaches predetermined threshold value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
In conjunction with the 5th kind of possible realization method of second aspect, in the 6th kind of possible realization method, it may include：
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, judge in (n-1)th time slot of frequency pilot sign in n-th of time slot
The obtained signal interference ratio of average amplitude coherent accumulation of both frequency pilot signs whether reach predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
The third aspect of the embodiment of the present invention provides a kind of detection device, it may include：
Processor and with the matched memory of the processor；
The memory is used to store the program that the processor executes；
The processor is for executing following steps：
Calculate the signal interference ratio of time slot；
Judge whether the signal interference ratio reaches predetermined threshold value；
If so, having data transmission in time slot described in notice base station.
In the first possible implementation, the processor can be additionally used in：
Maximum-ratio combing processing is made to the symbol in time slot, obtains the symbol after maximum-ratio combing；
According to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate leading in the time slot
The average amplitude of frequency symbol；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter of the time slot is calculated
Dry ratio.
In conjunction with the first possible realization method of the third aspect, in second of possible realization method, the processing
Device makees maximum-ratio combing processing to the symbol in time slot, obtains the symbol after maximum-ratio combing, can be calculated by following formula：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
In conjunction with second of possible realization method of the third aspect, in the third possible realization method, the processing
Device according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate the frequency pilot sign in the time slot
Average amplitude, can be calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
In conjunction with the third possible realization method of the third aspect, in the 4th kind of possible realization method, the processing
Device calculates the signal interference ratio of the time slot according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot,
It can be calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
The first or second or third in conjunction with the third aspect or with reference to first aspect or the 4th kind of possible realization method,
In 5th kind of possible realization method, the processor judges whether the signal interference ratio reaches predetermined threshold value, it may include：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
In conjunction with the 5th kind of possible realization method of the third aspect, in the 6th kind of possible realization method, it may include：
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, judge in (n-1)th time slot of frequency pilot sign in n-th of time slot
The obtained signal interference ratio of average amplitude coherent accumulation of both frequency pilot signs whether reach predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
Implement the embodiment of the present invention, has the advantages that：
By to the signal interference ratio of the time slot of transmission data is not calculated simultaneously in the discontinuous transmission of uplink DPCCH in CPC
After being compared with predetermined threshold value, you can judge to whether there is data transmission in such time slot, solve no related detecting method and lead
The problem for causing communication system Stability and dependability poor；Judged according to the signal interference ratio accumulation result of related time-slot, it can be
It remains to complete the detection to such time slot in the case that business datum amount is especially small and the service request time is especially short, reduces leakage
Inspection rate improves the precision and accuracy of detection.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow diagram of the first embodiment of detection method；
Fig. 2 is the flow diagram of the second embodiment of detection method；
Fig. 3 is the composition schematic diagram of the first embodiment of detection device of the present invention；
Fig. 4 is the composition schematic diagram of the second embodiment of detection device of the present invention；
Fig. 5 is the composition schematic diagram of the 3rd embodiment of detection device of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of not making creative work it is all its
His embodiment, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, is the flow diagram of the first embodiment of detection method, it is in the present embodiment, described
Method includes the following steps：
S101 calculates the signal interference ratio of time slot.
Specifically, the time slot is the time slot of not transmission data in the discontinuous transmission of uplink DPCCH in CPC.
S102, judges whether the signal interference ratio reaches predetermined threshold value.If so, S103 is thened follow the steps, it is no to then follow the steps
S104。
Usually, a threshold value can be pre-set, when the signal interference ratio is higher than this threshold value, then it represents that described
There is data transmission in time slot.
S103 notifies there is data transmission in time slot described in base station.
Base station after receiving the information, can carry out corresponding data volume statistics, execute corresponding power control again
It is operated with Interference Cancellation, it is ensured that the stability and reliability of entire communication system.
S104 notifies that no data is sent in time slot described in base station.
Certainly, because no data is sent at this time, do not have an impact to entire communication system, therefore can not also notify base
It stands, base station carries out power control adjusting according to original predefined pattern.
Judged by the signal interference ratio to this kind of time slot so that it is determined that whether there is data transmission in time slot, it is perfect existing
Have the blank of scheme, it can be achieved that being detected to the data in the time slot during CPC not transmission data, it is ensured that communication system it is steady
Qualitative and reliability.
Fig. 2 is please referred to, is the flow diagram of the second embodiment of detection method, it is in the present embodiment, described
Method includes the following steps：
S201 makees maximum-ratio combing processing to the symbol in time slot, obtains the symbol after maximum-ratio combing.
Specifically, the time slot is the time slot of not transmission data in the discontinuous transmission of uplink DPCCH in CPC.
Maximum-ratio combing processing is made to the symbol in time slot, obtains the symbol after maximum-ratio combing, following formula can be passed through
It calculates：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
Specifically, i-th of symbol y on the 1st article of RX pathL, i=hL, ixi+nL, i, nL, iFor mean value be 0 variance it is σ2's
White complex gaussian noise, usually, σ is equal to 1 herein.Carry out the symbol after maximum-ratio combing：
Carry out maximum-ratio combing be in order to receive better signal quality, certainly, in addition to maximum-ratio combing mode it
Outside, the method that we can also use any other suitable class maximum-ratio combing that received signal quality can be improved.
S202, according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate in the time slot
Frequency pilot sign average amplitude.
Specifically, according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate the time slot
The average amplitude of interior frequency pilot sign is calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
S203, according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, when calculating described
The signal interference ratio of gap.
Specifically, according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, described in calculating
The signal interference ratio of time slot is calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
Specifically, average noise energy δ in the time slot2For：
S204, judges whether the signal interference ratio reaches predetermined threshold value, if so, S205 is thened follow the steps, it is no to then follow the steps
S206。
Specifically, judge whether the signal interference ratio reaches predetermined threshold value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of both interior frequency pilot signs obtains reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
Specifically, if n pairs of 3 remainder results of serial number of time slot are 2, according to formula：
Calculate separately to obtain the draw amplitude m of the frequency pilot sign in n-th of time slotnAnd the pilot tone symbol in (n-1)th time slot
Number average amplitude mn-1, then pass through formula：
Calculate separately the average noise energy in n-th of time slotAnd the average noise energy in (n-1)th time slot,
Finally by formula：
It carries out coherent accumulation and obtains the synthesis signal interference ratio of two time slots, and judge whether the synthesis signal interference ratio reaches default threshold
Value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Herein to the calculation of the average amplitude coherent accumulation of the frequency pilot sign in three time slots with it is above-mentioned to two when
The calculation of the average amplitude coherent accumulation of frequency pilot sign in gap is similar, repeats no more.
S205 notifies there is data transmission in time slot described in base station.
S206 notifies that no data is sent in time slot described in base station.
In the present embodiment, a kind of method that the signal interference ratio accumulation result according to related time-slot is judged is given,
It remains to complete the detection to such time slot in the case that business datum amount is especially small and the service request time is especially short, reduces leakage
Inspection rate improves the precision and accuracy of detection.
Fig. 3 is please referred to, is the composition schematic diagram of the first embodiment of detection device of the present invention, it is in the present embodiment, described
Device includes：Computing unit 100 and judging unit 200.
The computing unit 100 is used to calculate the signal interference ratio of time slot；
The judging unit 200 is for judging whether the signal interference ratio reaches predetermined threshold value；If so, described in notice base station
There is data transmission in time slot.
Fig. 4 is please referred to, is the composition schematic diagram of the second embodiment of detection device of the present invention, it is in the present embodiment, described
Device includes：Computing unit 100, judging unit 200 and combining unit 300.
The combining unit 300 to the symbol in time slot for making maximum-ratio combing processing, after obtaining maximum-ratio combing
Symbol；
The computing unit 100 be additionally operable to according to after the maximum-ratio combing symbol and the time slot in the pilot tone that uses
Number calculates the average amplitude of the frequency pilot sign in the time slot；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter of the time slot is calculated
Dry ratio.
The combining unit 300 makees maximum-ratio combing processing to the symbol in time slot, obtains the symbol after maximum-ratio combing,
It is calculated by following formula：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
The computing unit 100 according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate
The average amplitude of frequency pilot sign in the time slot is calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
The computing unit 100 according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot,
The signal interference ratio for calculating the time slot is calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
The computing unit 100 is additionally operable to tire out the signal interference ratio of current time slots and the signal interference ratio of at least previous time slot
Add；
The judging unit 200 judges whether the signal interference ratio reaches predetermined threshold value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of both interior frequency pilot signs obtains reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
Fig. 5 is please referred to, is the composition schematic diagram of the 3rd embodiment of detection device of the present invention, it is in the present embodiment, described
Device includes：Processor 400 and with 400 matched memory 500 of the processor；
The memory 500 is used to store the program of the execution of the processor 400；
The processor 400 is for executing following steps：
Calculate the signal interference ratio of time slot；
Judge whether the signal interference ratio reaches predetermined threshold value；
If so, having data transmission in time slot described in notice base station.
The processor 400 is additionally operable to：
Maximum-ratio combing processing is made to the symbol in time slot, obtains the symbol after maximum-ratio combing；
According to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate leading in the time slot
The average amplitude of frequency symbol；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter of the time slot is calculated
Dry ratio.
The processor 400 makees maximum-ratio combing processing to the symbol in time slot, obtains the symbol after maximum-ratio combing, leads to
Following formula is crossed to calculate：
Wherein, yiFor the symbol after maximum-ratio combing, hL, iFor i-th of symbol on the 1st article of RX path decline because
Son, xiFor i-th of original signal that transmitting terminal is sent, nL, iFor the multiple height being superimposed on i-th of symbol on the 1st article of RX path
This white noise,For mid-frequency noise energy.
The processor 400 according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate institute
The average amplitude for stating the frequency pilot sign in time slot is calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is
The pilot number used in the time slot.
The processor 400 is according to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, meter
The signal interference ratio for calculating the time slot is calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
The processor 400 judges whether the signal interference ratio reaches predetermined threshold value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge the average amplitude phase of both frequency pilot sign in current time slots and frequency pilot sign at least previous time slot
Whether dry cumulative obtained signal interference ratio reaches predetermined threshold value.
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of both interior frequency pilot signs obtains reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, the frequency pilot sign in n-th of time slot and (n-1)th time slot are judged
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in interior frequency pilot sign and the n-th -2 time slots obtains
Reach predetermined threshold value；
Wherein, within each permanent online not period of transmission data, when to time slot, sequence obtains since 1 respectively
The serial number n of gap, and n is the integer more than or equal to 1.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
What point illustrated is all the difference with other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device embodiments, since it is basically similar to the method embodiment, thus description it is fairly simple, related place referring to
The part of embodiment of the method illustrates.
By the description of above-described embodiment, the present invention has the following advantages：
By to the signal interference ratio of the time slot of transmission data is not calculated simultaneously in the discontinuous transmission of uplink DPCCH in CPC
After being compared with predetermined threshold value, you can judge to whether there is data transmission in such time slot, solve no related detecting method and lead
The problem for causing communication system Stability and dependability poor；Judged according to the signal interference ratio accumulation result of related time-slot, it can be
It remains to complete the detection to such time slot in the case that business datum amount is especially small and the service request time is especially short, reduces leakage
Inspection rate improves the precision and accuracy of detection.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, abbreviation ROM) or random access memory (Random
Access Memory, abbreviation RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (8)
1. a kind of detection method, which is characterized in that including：
The signal interference ratio of time slot during the permanent online not transmission data of calculating；
Judge whether the signal interference ratio reaches predetermined threshold value；
If so, having data transmission in time slot described in notice base station；
The signal interference ratio of time slot during the permanent online not transmission data of calculating, including：
Maximum-ratio combing processing is made to the symbol in time slot, obtains the symbol after maximum-ratio combing；
According to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate the symbol of the pilot tone in the time slot
Number average amplitude；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter for calculating the time slot is dry
Than.
2. the method as described in claim 1, which is characterized in that make maximum-ratio combing processing to the symbol in time slot, obtain most
The big symbol than after merging is calculated by following formula：
Wherein, yiFor the symbol after maximum-ratio combing, hl,iFor the fading factor of i-th of symbol on the l articles RX path, xiFor
I-th of original signal that transmitting terminal is sent, nl,iFor the multiple Gauss white noise being superimposed on i-th of symbol on the l articles RX path
Sound,For mid-frequency noise energy.
3. method as claimed in claim 2, which is characterized in that according to after the maximum-ratio combing symbol and the time slot in
The pilot number used calculates the average amplitude of the frequency pilot sign in the time slot, is calculated by following formula：
Wherein, m is the average amplitude of the frequency pilot sign in the time slot, yiFor the symbol after the maximum-ratio combing, N is described
The pilot number used in time slot.
4. method as claimed in claim 3, which is characterized in that according in the average amplitude of the frequency pilot sign and the time slot
Average noise energy, calculate the signal interference ratio of the time slot, calculated by following formula：
Wherein, SIR is the signal interference ratio of the time slot, δ2For the average noise energy in the time slot.
5. method according to any one of claims 1-4, which is characterized in that judge whether the signal interference ratio reaches default threshold
Value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge that the average amplitude of both the frequency pilot sign in current time slots and frequency pilot sign at least previous time slot is relevant tired
Whether the signal interference ratio added reaches predetermined threshold value.
6. method as claimed in claim 5, which is characterized in that including：
If n pairs of 3 remainder results of the serial number of time slot are 1, judge whether the signal interference ratio of n-th of time slot reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 2, judge in the frequency pilot sign and (n-1)th time slot in n-th of time slot
Whether the signal interference ratio that the average amplitude coherent accumulation of both frequency pilot signs obtains reaches predetermined threshold value；
If n pairs of 3 remainder results of the serial number of time slot are 0, judge in the frequency pilot sign and (n-1)th time slot in n-th of time slot
Whether the signal interference ratio that the average amplitude coherent accumulation of the frequency pilot sign three in frequency pilot sign and the n-th -2 time slots obtains reaches
Predetermined threshold value；
Wherein, within each permanent online not period of transmission data, to time slot, sequence obtains time slot since 1 respectively
Serial number n, and n is the integer more than or equal to 1.
7. a kind of detection device, which is characterized in that including：
Computing unit, the signal interference ratio for the time slot during calculating permanent online not transmission data；
Judging unit, for judging whether the signal interference ratio reaches predetermined threshold value；If so, having number in time slot described in notice base station
According to transmission；
Described device further includes：
Combining unit obtains the symbol after maximum-ratio combing for making maximum-ratio combing processing to the symbol in time slot；
The computing unit be additionally operable to according to after the maximum-ratio combing symbol and the time slot in the pilot number that uses calculate
The average amplitude of frequency pilot sign in the time slot；
According to the average noise energy in the average amplitude of the frequency pilot sign and the time slot, the letter for calculating the time slot is dry
Than.
8. device as claimed in claim 7, which is characterized in that the computing unit be additionally operable to by the signal interference ratio of current time slots with
The signal interference ratio of at least previous time slot adds up；
The judging unit judges whether the signal interference ratio reaches predetermined threshold value, including：
Judge whether the signal interference ratio of current time slots reaches predetermined threshold value；Or
Judge that the average amplitude of both the frequency pilot sign in current time slots and frequency pilot sign at least previous time slot is relevant tired
Whether the signal interference ratio added reaches predetermined threshold value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/087994 WO2014101167A1 (en) | 2012-12-31 | 2012-12-31 | Detection method and device |
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| CN104137599A CN104137599A (en) | 2014-11-05 |
| CN104137599B true CN104137599B (en) | 2018-10-30 |
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| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
| CN101374038A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Signal retransmission method for OFDM system based on HARQ technology |
| CN101790204A (en) * | 2010-02-01 | 2010-07-28 | 北京邮电大学 | Relay selection method giving consideration to channel conditions and traffic states in cooperative communication system |
| CN101938837A (en) * | 2009-06-30 | 2011-01-05 | 华为技术有限公司 | Inter-cell interference suppression method and device |
| WO2011123534A1 (en) * | 2010-03-31 | 2011-10-06 | Qualcomm Incorporated | Method and apparatus to facilitate support for multi-radio coexistence |
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| CN101136666A (en) * | 2006-08-28 | 2008-03-05 | 华为技术有限公司 | Method and apparatus for implementing transmission power control |
| WO2008088374A2 (en) * | 2007-01-12 | 2008-07-24 | Thomson Licensing | Apparatus and method for sensing an atsc signal in low signal-to-noise ratio |
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|---|---|---|---|---|
| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
| CN101374038A (en) * | 2007-08-20 | 2009-02-25 | 中兴通讯股份有限公司 | Signal retransmission method for OFDM system based on HARQ technology |
| CN101938837A (en) * | 2009-06-30 | 2011-01-05 | 华为技术有限公司 | Inter-cell interference suppression method and device |
| CN101790204A (en) * | 2010-02-01 | 2010-07-28 | 北京邮电大学 | Relay selection method giving consideration to channel conditions and traffic states in cooperative communication system |
| WO2011123534A1 (en) * | 2010-03-31 | 2011-10-06 | Qualcomm Incorporated | Method and apparatus to facilitate support for multi-radio coexistence |
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| CN104137599A (en) | 2014-11-05 |
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