CN105229954A - A kind of method of link circuit self-adapting adjustment and device - Google Patents

A kind of method of link circuit self-adapting adjustment and device Download PDF

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Publication number
CN105229954A
CN105229954A CN201480000544.6A CN201480000544A CN105229954A CN 105229954 A CN105229954 A CN 105229954A CN 201480000544 A CN201480000544 A CN 201480000544A CN 105229954 A CN105229954 A CN 105229954A
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sub
frame set
frame
link
subframe
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CN105229954B (en
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朱伟
彭炳光
张涵
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • 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

Abstract

A kind of method that the embodiment of the present invention provides link circuit self-adapting to adjust and device, the method of described link circuit self-adapting adjustment is, first be M subframe set by the multiple sub-frame division in link, each sub-frame set in M subframe set comprises at least one subframe, for each sub-frame set in M subframe set sets the controling parameters of self-adaptative adjustment and the target expectation of described controling parameters respectively, then link circuit self-adapting adjustment is carried out to each sub-frame set in M subframe set, make to adjust the target expectation that controling parameters corresponding to rear each sub-frame set meets described controling parameters.The embodiment of the present invention while enhancing link adaptation techniques control ability, can improve systematic function effectively.

Description

A kind of method of link circuit self-adapting adjustment and device
A kind of method and device technical field of link circuit self-adapting adjustment
The present invention relates to the method and device of the communications field, more particularly to a kind of adjustment of link circuit self-adapting.
Background technology
With the rapid growth to wireless data service demand, mobile communications network needs to improve band utilization efficiency, to meet data transfer demands.In order to improve the availability of frequency spectrum, link adaptation techniques（Link Adaptation) turn into one of key technology of GSM, the link adaptation techniques refer to the channel status fed back by receiving terminal in communication network, the technology adaptively adjusted to the coded system of transmitting terminal, modulation type and transmission power etc..
Existing link adaptation techniques are the desired value that user sets a control parameter and control parameter, then according to the measured value of the control parameter（The statistical value of certain time）Difference between expecting with target, to measurement signal and interference plus noise ratio（Signal to Interference plus Noise Ratio, SINR), modulation coding mode (Modulation and Coding Scheme, MC S), transmit power etc. carry out adaptive correction or adjustment so that the measured value of control parameter converges to desired value.
For example, Adaptive Modulation and Coding technology (Adaptive Modulation and Coding, AMC) in order that user is attained by preferable data transmission quality under various circumstances, can use the method for control user's Block Error Rate.One suitable block error probability desired value is set according to actual channel quality and customer service situation, then by selecting suitable MC S, the measured value of Block Error Rate of the user when carrying out data transmission is set to converge to the desired value of Block Error Rate, so as to realize that link circuit self-adapting is adjusted.
During practical communication, due to the influence of many factors（Such as disturb factor）, the demodulation ability of different subframes can be caused different, and prior art can not be carried out effective link circuit self-adapting by subframe granularity, so as to cause link to decline in the communication performance of part subframe, reduce systematic function. The content of the invention
Embodiments of the invention provide a kind of method and device of link circuit self-adapting adjustment, it is possible to increase systematic function.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
First aspect there is provided a kind of base station, including：
Taxon, for being M subframe set by multiple sub-frame divisions in link, the chain route the base station and set up with terminal device, and each sub-frame set in the M subframe set includes at least one subframe, and the M is the integer more than or equal to 2；
Setup unit, the target for setting the control parameter adaptively adjusted and the control parameter respectively for each sub-frame set in the M subframe set that is divided for the taxon is expected；
Adjustment unit, link circuit self-adapting adjustment is carried out for each sub-frame set in the M subframe set that is divided to the taxon so that the target that the corresponding control parameter of each sub-frame set meets the control parameter after adjustment is expected.
With reference in a first aspect, in the first can realize mode, the taxon is specifically for being interfering subframe set and noiseless sub-frame set by multiple sub-frame divisions in the link；
Wherein, the interfering subframe set includes all subframes being disturbed in the multiple subframe, and the noiseless sub-frame set includes all interference-free subframes in the multiple subframe.
With reference to first aspect, in second of achievable mode, the taxon specifically for, when the link is by PERIODIC INTERFERENCE, it is K sub-frame set by multiple sub-frame divisions in the link, the interference period of the PERIODIC INTERFERENCE is T milliseconds of milliseconds, and the periodic disturbances duration is L milliseconds, 0<L<T, K are the integer more than or equal to 2, and the M is equal to K;
Wherein, the K sub-frame set is the 0th sub-frame set to the（K- 1) sub-frame set, will（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in the K sub-frame set, the j is integer, 0 j（K- l), the i is the integer more than or equal to 0.
With reference in a first aspect, in the third can realize mode, the taxon is specifically used In, when the link includes detection reference signal SRS, by multiple sub-frame divisions in the link be the first sub-frame set, the second sub-frame set and the 3rd sub-frame set, the M be equal to 3;
Wherein, first sub-frame set includes all SRSs in the multiple subframe, second sub-frame set includes first subframe after each SRS subframes in the multiple subframe, and the 3rd sub-frame set includes all subframes in addition to first sub-frame set and second sub-frame set in the multiple subframe.
With reference in a first aspect, first can realize mode to the third, in the 4th kind of achievable mode, the setup unit is specifically for Block Error Rate to be set as to the control parameter of each sub-frame set；
Block error probability desired value is set as to the desired value of the control parameter of each sub-frame set, the block error probability desired value all same of each sub-frame set.
With reference to the 4th kind of achievable mode, in the 5th kind of achievable mode, the link is up-link,
The adjustment unit includes obtaining subelement, and the acquisition subelement is used to obtain in the up-link BLER statistic value of the first sub-frame set in the M subframe set in preset time period；
According to the BLER statistic value of first sub-frame set and the magnitude relationship of the block error probability desired value, the modulation coding mode MCS exponent numbers of first sub-frame set are obtained；
The adjustment unit also includes transmission sub-unit, the transmission sub-unit is used to send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, in order to the terminal device using the MCS exponent numbers in the first sub-frame set transmitting data, the terminal device sets up the up-link with the base station.
Second aspect is there is provided a kind of method that link circuit self-adapting is adjusted, for base station, including：It is M subframe set by multiple sub-frame divisions in link, the chain route the base station and set up with terminal device, each sub-frame set in the M subframe set includes at least one subframe, the M is the integer more than or equal to 2；
The target for setting the control parameter adaptively adjusted and the control parameter respectively for each sub-frame set in the M subframe set is expected； Link circuit self-adapting adjustment is carried out to each sub-frame set in the M subframe set so that the target that the corresponding control parameter of each sub-frame set meets the control parameter after adjustment is expected.
With reference to second aspect, in the first can realize mode, the M is equal to 2, and multiple sub-frame divisions by link are that M subframe set includes：
It is interfering subframe set and noiseless sub-frame set by multiple sub-frame divisions in the link；
Wherein, the interfering subframe set includes all subframes being disturbed in the multiple subframe, and the noiseless sub-frame set includes all interference-free subframes in the multiple subframe.
With reference to second aspect, in second of achievable mode, multiple sub-frame divisions by link are that M subframe set includes：
It is K sub-frame set by multiple sub-frame divisions in the link, the interference period of the PERIODIC INTERFERENCE is T milliseconds, and the periodic disturbances duration is L milliseconds, 0 when the link is by PERIODIC INTERFERENCE<L<T, K are the integer more than or equal to 2, and the M is equal to K;
Wherein, the K sub-frame set is the 0th sub-frame set to the（K- 1) sub-frame set, will（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in the K sub-frame set, the j is integer, 0 j（K- l), the i is the integer more than or equal to 0.
With reference to second aspect, in the third can realize mode, multiple sub-frame divisions by link are that M subframe set includes：
It is the first sub-frame set, the second sub-frame set and the 3rd sub-frame set by multiple sub-frame divisions in the link when the link includes detection reference signal SRS, the M is equal to 3;
Wherein, first sub-frame set includes all SRSs in the multiple subframe, second sub-frame set includes first subframe after each SRS subframes in the multiple subframe, and the 3rd sub-frame set includes all subframes in addition to first sub-frame set and second sub-frame set in the multiple subframe.
With reference to second aspect, first can realize mode to the third, and side can be achieved at the 4th kind In formula, each sub-frame set in the M subframe set sets the control parameter adaptively adjusted respectively and the target of the control parameter is expected to include：
Block Error Rate is set as to the control parameter of each sub-frame set；
Block error probability desired value being set as to, the target of the control parameter of each sub-frame set is expected, the block error probability desired value all same of each sub-frame set.
With reference to the 4th kind of achievable mode, in the 5th kind of achievable mode, each sub-frame set in the M subframe set, which carries out link circuit self-adapting adjustment, to be included：
Obtain in the up-link BLER statistic value of the first sub-frame set in the M subframe set in preset time period；
According to the BLER statistic value of first sub-frame set and the magnitude relationship of the block error probability desired value, the modulation coding mode MCS exponent numbers of first sub-frame set are obtained；
Up license signaling is sent to terminal device, the up license signaling includes the MCS exponent numbers, in order to the terminal device using the MC S exponent numbers in the first sub-frame set transmitting data, the terminal device sets up the up-link with the base station.
The method and device of link circuit self-adapting adjustment provided in an embodiment of the present invention, when carrying out link circuit self-adapting adjustment, multiple subframes in link are classified first, obtain multiple sub-frame sets, then the control parameter and the desired value of control parameter adaptively adjusted for each sub-frame set setting, and link circuit self-adapting adjustment is carried out respectively to each sub-frame set, compared to prior art, systematic function can be effectively improved while link adaptation techniques control ability is strengthened.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in being described below to embodiment is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of radio frames in LTE system provided in an embodiment of the present invention；Fig. 2 is a kind of flow chart of the method for link circuit self-adapting adjustment provided in an embodiment of the present invention； The flow chart for the method that Fig. 3 adjusts for another link circuit self-adapting provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of base station provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another base station provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
In Long Term Evolution (Long Term Evolution, LTE) system of prior art, the minimum time unit of regulation time domain is7 ^=1/G5(KK)x2()48 = 32'55ra, wherein, ns is microsecond, correspond to 30.72MHz baseband sampling rate.Long Term Evolution（ Long Term Evolution, LTE：) physical layer uplink and downlink link is all using radio frames as interval in system, the length of a radio frames is7 ^=3G72(K)x:^=1(^, wherein, ms is millisecond.
For convenience of describing, with LTE FDDs（Frequency Division Duplex, FDD) system radio frames exemplified by illustrate, each 10 milliseconds of radio frames of LTE frequency division duplex systems are divided into 20 time slots, each slot length By time slot sequentially in time marked as 0 ~ 19, two continuous slots marked as 2 η and 2 η+1 can be constituted a subframe η, η is the integer more than or equal to 0 less than or equal to 9, the length of each subframe is 1 millisecond, sequentially in time can be by subframe marked as 0 ~ 9
For FDD, the uplink and downlink link of LTE system can also be separated in frequency domain, so, and the resource that downlink transfer and uplink are can be used in each 10 ms interval is 10 subframes.The structure of the radio frames is as shown in Fig. 1, the length of radio frames 01 is 10 milliseconds, radio frames 01 include 20 numberings from 0 19 time slot, the time slot is as shown in Fig. 1 03, the length of each time slot is 0.5 millisecond, 20 time slots included by radio frames 01 can constitute the subframe that 10 length are 1 millisecond, and the subframe is as shown in Fig. 1 02, and each subframe includes two time slots.
During practical communication, due to the influence of many factors, the demodulation energy of different subframes Power is different, for example, being disturbed the demodulation ability of subframe can be deteriorated.Existing link adaptation techniques, the difference of different subframe demodulation abilities is not accounted for, example, the control parameter of different subframes is identical with the desired value of the control parameter in the prior art, when carrying out and adaptively adjusting the convergences in the mean of all subframes of the control parameter in a link can only be caused to desired value, but the control parameter not necessarily converges to desired value in the actual value of different subframes, therefore have impact on systematic function.
The embodiment of the present invention provides a kind of method of link circuit self-adapting adjustment, as shown in Fig. 2 for base station, including：
Step 201, it is M subframe set by multiple sub-frame divisions in link, the chain route base station and terminal device are set up, and each sub-frame set in M sub-frame set includes at least one subframe, and M is the integer more than or equal to 2.
The link is the up-link or downlink set up between base station and terminal device, the up-link or downlink are made up of continuous frame, each frame is made up of multiple continuous subframes, example, in LTE system, each frame is made up of 10 continuous subframes, therefore when carrying out link circuit self-adapting adjustment, base station can be classified multiple subframes in the link, obtain M subframe set, and M is the integer more than or equal to 2.
The target of step 202, the control parameter adaptively adjusted for each sub-frame set setting in M subframe set and control parameter is expected.
The control parameter adaptively adjusted includes one or its combination in Block Error Rate, the bit error rate, average repeat time, mean transit delay, average spectral efficiency (ase) of link etc., control parameter can reflect the practical communication quality of link, in practical application, control parameter is also possible that the other specification of existing link circuit self-adapting adjustment, and the embodiment of the present invention is not limited this.It can be a specific value that target, which is expected, for example, the desired value that Block Error Rate can be set is 10%, optionally, it can also be an optimization aim that target, which is expected, for example, when the control parameter adaptively adjusted is the average spectral efficiency (ase) of data transfer, the target of the control parameter is expected to may be such that average spectral efficiency (ase) is issued to maximum in existing link-quality, optionally, target expectation can also be the desired combination of target of multiple control parameters, for example average spectral efficiency (ase) is caused to reach maximum on the premise of average repeat time is less than 1 time.
Example, when carrying out link circuit self-adapting adjustment, Block Error Rate can be set as per height The control parameter of frame set, and for each sub-frame set same or different block error probability desired value is set as the target of control parameter to expect, or set control parameter of the mean transit delay as each sub-frame set, same or different mean transit delay desired value is set as the target of control parameter to expect, average spectral efficiency (ase) can also be set as control parameter, same or different average spectral efficiency (ase) value is set as target expectation of control parameter etc., set in practical application according to specific requirement, the embodiment of the present invention is not limited this.
Need explanation, the target expectation of different control parameters and the control parameter can also be set for different sub-frame sets, the control parameter that for example, the first sub-frame set is set is Block Error Rate, the target of the control parameter is desired for being not more than 1 % for Block Error Rate, the control parameter set for the second sub-frame set is average spectral efficiency (ase), and the target of the control parameter is desired for average spectral efficiency (ase) maximization etc..
Step 203, in M subframe set each sub-frame set carry out link circuit self-adapting adjustment so that after adjustment the corresponding control parameter of each sub-frame set meet control parameter target expectation.
Expected to carry out link circuit self-adapting adjustment to each sub-frame set according to the target of the control parameter of each sub-frame set and control parameter in M subframe set, for example, the Block Error Rate of first sub-frame set is adaptively adjusted, the target of the Block Error Rate of setting is desired for 10%, then base station carries out link circuit self-adapting adjustment to the first sub-frame set so that the actual Block Error Rate of the first sub-frame set converges to 10%.
When link circuit self-adapting adjustment is carried out, multiple subframes in link are classified first base station, obtain multiple sub-frame sets, target for each sub-frame set setting control parameter and control parameter is expected, then when carrying out link circuit self-adapting adjustment, link circuit self-adapting adjustment is carried out to each sub-frame set respectively, systematic function can be effectively improved while link adaptation techniques control ability is strengthened.
Specifically, can be two sub-frame sets, respectively interfering subframe set and noiseless sub-frame set by multiple sub-frame divisions in link when M is equal to 2；Wherein, the interfering subframe set includes all subframes being disturbed in multiple subframes, and sub-frame set that this is noiseless includes all interference-free subframes in multiple subframes.
Example, when multiple subframes in link are classified, if base station anticipated that Subframe is disturbed degree, or base station may determine that whether subframe is interfered, it is interfering subframe set and noiseless sub-frame set that interference whether can be received according to subframe by multiple sub-frame divisions in link, for example, assuming that the first subframe is any one subframe in link, base station first judges whether the first subframe is to be disturbed subframe；If the first subframe is is disturbed subframe, base station is by the first sub-frame division into interfering subframe set；If the first subframe is not to be disturbed subframe, base station is by the first sub-frame division into noiseless sub-frame set.It should be noted that, whether judge the first subframe is when being disturbed subframe, the interference can also be a certain class certain interference, whether then judge the first subframe is the subframe disturbed by such, if the first subframe is the subframe by such interference, by the first sub-frame division to receiving in interfering subframe set, if the first subframe is not the subframe by such interference, by the first sub-frame division to noiseless sub-frame set.Optionally, when the subframe in link can also be classified according to the degree difference that is disturbed of subframe, the stronger sub-frame set of the degree of being disturbed can be divided into and the weaker sub-frame set of degree is disturbed, multiple sub-frame sets can also be divided into according to the different degree that is disturbed, the embodiment of the present invention is not limited this.
Example, in actual applications, link may also be subjected to periodic interference, and the cycle of the PERIODIC INTERFERENCE is T milliseconds, and the periodic disturbances duration is L milliseconds, 0<L<T.It is now K sub-frame set by multiple sub-frame divisions in link, K is the integer more than or equal to 2, M is equal to Κ, K sub-frame set is the 0th sub-frame set to the（K- 1) sub-frame set.Will（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in K sub-frame set, j is integer, 0 j（K- l), i is the integer more than or equal to 0.
For example, the band segment and DECT of LTE systems（Digital Enhanced Cordless Telecommunications, DECT) frequency range of cordless telephone system is overlapped, there is beacon (beacon) signal of a cycle in communication process in the cordless telephone system, the cycle of the beacon signal is that T is 10 milliseconds, and each duration is that L is 1 millisecond.When there is the DECT wireless phones with frequency near LTE base station, the up-link or downlink of the base station can be by its PERIODIC INTERFERENCEs.And the subframe lengths of LTE system are also just 1 millisecond, when there is the DECT wireless phones with frequency near base station, can by the subframe of LTE system in chronological order number consecutively be 0,1,2,3,4,5,6,7,8,9,10,11 ..., and subframe is divided into K sub-frame set, K is 10, i.e. K Individual sub-frame set is the 0th sub-frame set to the 9th sub-frame set, then can be by（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in K sub-frame set, i.e. jth sub-frame set includes the subframe that all numberings are j+10i, j is more than or equal to 0, integer less than or equal to 9, i is the integer more than or equal to 0, so in DECT communication process, the subframe at least included in this 10 sub-frame sets in the presence of a sub-frame set can be disturbed persistently by DECT beacon signals, when carrying out link circuit self-adapting adjustment, the target of control parameter and the control parameter that physical link quality for 10 sub-frame sets sets each sub-frame set respectively is expected, and adaptively adjusted respectively, so that the control parameter of each sub-frame set is attained by the target expectation of corresponding control parameter in 10 sub-frame sets.
Example, also there is detection reference signal (Sounding Reference Signal in the up-link of LTE systems, SRS) subframe, data can not be transmitted for carrying reference signal due to last data symbol in SRS, therefore the equivalent code check of the subframe transmitting data is caused to improve, each subframe includes multiple data symbols, because terminal device from data symbol during data transfer when being switched to SRS symbols, the power that there is maximum 40 microsecond is allowed to switch the excessive phase, so as to have impact on the demodulation performance of the subframe including SRS symbols, the demodulation ability of the subframe is caused further to be deteriorated, subframe including SRS symbols is referred to as SRS.Same, when being switched to data symbol from SRS symbols in data transmission procedure due to terminal device, switch the excessive phase there is also the power of maximum 40 microsecond, so as to have impact on the demodulation ability of first data symbol of the latter subframe of SRS in link, so that the overall demodulation ability of the latter subframe of SRS subframes is also poor in link, the latter subframe of SRS subframes is first subframe after SRS in up-link.When there is SRS in link, all sub-frame divisions that can include the link are multiple sub-frame sets, example, are the first sub-frame set, the second sub-frame set and the 3rd sub-frame set by multiple sub-frame divisions in link, and M is equal to 3;Wherein, first sub-frame set includes all SRSs in multiple subframes, second sub-frame set includes first subframe after each SRS in multiple subframes, and the 3rd sub-frame set includes all subframes in addition to the first sub-frame set and the second sub-frame set in multiple subframes.In practical application, when considering the influence of SRS demodulation ability, it can also be divided according to other criteria for classifications, the embodiment of the present invention is not limited this. Specifically, judging the type of the first subframe, the first subframe is any one subframe in multiple subframes；When the first subframe is SRS, by the first sub-frame division into the first sub-frame set；When the first subframe not be SRS when, judge the first subframe whether be SRS latter subframe；If the first subframe is the latter subframe of SRS, by the first sub-frame division to the second sub-frame set；If the first subframe is not the latter subframe of SRS, by the first sub-frame division to the 3rd sub-frame set.
Explanation is needed, the method classified to the subframe in link is varied, can be set as the case may be in practical application, and sorting technique provided in an embodiment of the present invention is merely illustrative, and specific sorting technique is not limited.
Specifically, link circuit self-adapting adjustment can be that up-link is adaptively adjusted, can also be that downlink is adaptively adjusted, example, when the up-link set up to base station and terminal device is adaptively adjusted, the control parameter that Block Error Rate is adaptively adjusted as each sub-frame set can be set, block error probability desired value is set and expects as the target of the control parameter of each sub-frame set, and the block error probability desired value all same of each sub-frame set.
When the adaptive control parameter that M subframe set is set is Block Error Rate, and the target of control parameter, when being desired for identical block error probability desired value, base station can carry out link circuit self-adapting adjustment for different sub-frame sets respectively.Example, base station can adaptively be adjusted to the first sub-frame set, first sub-frame set is any one sub-frame set in M subframe set, base station can obtain in up-link the BLER statistic value of the first sub-frame set in M subframe set in preset time period first, then according to the BLER statistic value and the magnitude relationship of block error probability desired value of the first sub-frame set, obtain the MCS exponent numbers of the first sub-frame set, and send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, in order to terminal device using the MCS exponent numbers in the first sub-frame set transmitting data, the terminal device sets up up-link with base station.
Optionally, when the BLER statistic value for the first sub-frame set that base station is obtained is more than block error probability desired value, base station can be according to the BLER statistic value and the difference of block error probability desired value of the first sub-frame set, obtain the MCS exponent numbers of the first sub-frame set, then up license signaling is sent to terminal device, the up license signaling includes the MCS exponent numbers, the terminal device is received after up license signaling, the MC S exponent numbers are obtained, and are existed using the MC S exponent numbers First sub-frame set transmitting data, when terminal device selects the MCS exponent numbers in the first sub-frame set transmitting data, can reduce the Block Error Rate of the first sub-frame set so that the Block Error Rate of the first sub-frame set converges to block error probability desired value；When the BLER statistic value for the first sub-frame set that base station is obtained is less than block error probability desired value, base station can be according to the BLER statistic value and the difference of block error probability desired value of the first sub-frame set, obtain the MC S exponent numbers of the first sub-frame set, then up license signaling is sent to terminal device, the up license signaling includes the MCS exponent numbers, the terminal device is received after up license signaling, obtain the MC S exponent numbers, and using the MC S exponent numbers in the first sub-frame set transmitting data, when terminal device selects the MC S exponent numbers in the first sub-frame set transmitting data, the Block Error Rate of the first sub-frame set can be increased, so that the Block Error Rate of the first sub-frame set converges to block error probability desired value.In practical application, base station can also be according to the BLER statistic value and the difference of block error probability desired value of the first sub-frame set, obtain the SINR of up-link correction, then the MC S exponent numbers of the first sub-frame set are obtained according to the average SINR of up-link and SINR correction, specific adjustment process is prior art, and the embodiment of the present invention will not be described here.
The embodiment of the present invention is only illustrated exemplified by controlling Block Error Rate, in practical application, the target that other control parameters and other control parameters can also be set is expected, and then realizes the link circuit self-adapting adjustment carried out to different sub-frame sets, and the embodiment of the present invention is not repeated this.Method of adjustment is merely illustrative in the present embodiment, in practical application, is expected to be adjusted using other suitable existing adaptive techniques according to the target of different control parameters and the control parameter, the embodiment of the present invention does not repeat this.
It should be noted that the technical scheme of the embodiment of the present invention can apply to various communication systems, such as：Ask mobile communication (Global System of Mobile communication, GSM) system, CDMA entirely（Code Division Multiple Access, CDMA) system, WCDMA (Wideband Code Division Multiple Access, WCDMA) system, GPRS（General Packet Radio Service, GPRS), Long Term Evolution（Long Term Evolution, LTE) system, LTE FDDs（Frequency Division Duplex, FDD) system, LTE time division duplexs（Time Division Duplex, TDD), UMTS（Universal Mobile Telecommunication System, UMTS), global interconnection！¾:Ripple accesses (Worldwide Interoperability for Microwave Access, WiMAX) communication system etc., the embodiment of the present invention is illustrated by taking LTE frequency division duplex systems as an example, does not limit the application of technical solution of the present invention.
The method of link circuit self-adapting adjustment provided in an embodiment of the present invention, when carrying out link circuit self-adapting adjustment, multiple subframes in link are classified first, obtain multiple sub-frame sets, then the target for each sub-frame set setting control parameter is expected, and link circuit self-adapting adjustment is carried out respectively to each sub-frame set, while link adaptation techniques control ability is strengthened, it is effectively improved systematic function.The embodiment of the present invention provides a kind of method of link circuit self-adapting adjustment, as shown in Fig. 3, and for base station, the embodiment of the present invention assumes M=2, i.e., be two sub-frame sets by multiple sub-frame divisions in link, and the method for the link circuit self-adapting adjustment includes：
Step 301, by multiple sub-frame divisions in link it is two sub-frame sets, respectively interfering subframe set and noiseless sub-frame set.
The link is the up-link that base station is set up with terminal device, when carrying out link circuit self-adapting adjustment, multiple subframes in the up-link can according to the different demarcation of demodulation ability be two sub-frame sets by base station, respectively interfering subframe set and noiseless sub-frame set, base station anticipated that the degree that is interfered of subframe in practical application, or base station may determine that whether subframe is interfered, wherein, interfering subframe set includes all subframes being disturbed in multiple subframes in up-link, noiseless sub-frame set includes all interference-free subframes in multiple subframes in up-link.Example, it is assumed that the first subframe is any one subframe in all subframes, and whether first determine whether the first subframe is to be disturbed subframe；If the first subframe is is disturbed subframe, by the first sub-frame division into interfering subframe set；If the first subframe is not to be disturbed subframe, by the first sub-frame division into noiseless sub-frame set.
The target of step 302, the control parameter adaptively adjusted for interfering subframe set setting and control parameter is expected.
Because the subframe in interfering subframe set is different from the demodulation ability of the subframe in noiseless sub-frame set, therefore when carrying out link circuit self-adapting adjustment, respectively interfering subframe set and noiseless sub-frame set is needed to set the target expectation of control parameter and control parameter respectively, it is real Control parameter has a variety of in the application of border, and the embodiment of the present invention is illustrated by taking Block Error Rate as an example, may be referred to the present embodiment for other control parameters, this is not repeated.Example, control parameter of the Block Error Rate as interfering subframe set can be set, the first block error probability desired value is set and expects as the target of the control parameter, the first block error probability desired value is the block error probability desired value of interfering subframe set.
The target of step 303, the control parameter adaptively adjusted for the setting of noiseless sub-frame set and control parameter is expected.
Example, control parameter of the Block Error Rate as noiseless sub-frame set can be set, the second block error probability desired value is set as the target of the control parameter to expect, second block error probability desired value is the block error probability desired value of noiseless sub-frame set, second block error probability desired value can be identical with the first block error probability desired value, can also be different.
Need explanation, the control parameter of the control parameter of interfering subframe set and noiseless sub-frame set can be different in practical application, the control parameter that for example, interfering subframe set is set is Block Error Rate, the target of the control parameter is desired for being not more than 1 % for Block Error Rate, the control parameter set for noiseless sub-frame set is average spectral efficiency (ase), and the target of the control parameter is desired for average spectral efficiency (ase) maximization etc..
The embodiment of the present invention is assumed to be interfering subframe set and the target of noiseless sub-frame set setting identical control parameter and control parameter is expected, illustrated by taking interfering subframe set and noiseless sub-frame set setting identical block error probability desired value as an example, i.e., the first block error probability desired value is identical with the second block error probability desired value.
Step 304, to interfering subframe set carry out link circuit self-adapting adjustment so that the control parameter of the interfering subframe set after adjustment meet the control parameter target expect.
Example, when carrying out link circuit self-adapting adjustment to interfering subframe set, base station obtains the BLER statistic value of the subframe in preset time period included by interfering subframe set in up-link first, then according to the BLER statistic value and the magnitude relationship of block error probability desired value of interfering subframe set, obtain the MC S exponent numbers of interfering subframe set, and send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, in order to terminal device using the MC S exponent numbers in interfering subframe set transmitting data, the terminal device is used to set up up-link with base station. Specifically, when the BLER statistic value for the interfering subframe set that base station is obtained is more than block error probability desired value, base station can be according to the BLER statistic value and the difference of block error probability desired value of interfering subframe set, obtain the SINR corrections of interfering subframe set, then according to average SINR and SINR corrections, obtain the MC S exponent numbers of interfering subframe set, then up license signaling is sent to terminal device, the up license signaling includes the MCS exponent numbers, the terminal device is received after up license signaling, obtain the MC S exponent numbers, and using the MC S exponent numbers in interfering subframe set transmitting data, when terminal device selects the MC S exponent numbers in interfering subframe set transmitting data, the Block Error Rate of interfering subframe set can be reduced, so that the Block Error Rate of interfering subframe set converges to block error probability desired value；When the BLER statistic value for the interfering subframe set that base station is obtained is less than block error probability desired value, base station can be according to the BLER statistic value and the difference of block error probability desired value of interfering subframe set, obtain the SINR corrections of interfering subframe set, then according to average SINR and SINR corrections, obtain the MCS exponent numbers of interfering subframe set, and send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, the terminal device is received after up license signaling, obtain the MC S exponent numbers, and using the MC S exponent numbers in interfering subframe set transmitting data, when terminal device selects the MC S exponent numbers in interfering subframe set transmitting data, the Block Error Rate of interfering subframe set can be increased, so that the Block Error Rate of interfering subframe set converges to block error probability desired value.The acquisition process of average SINR and SINR corrections is prior art, and the embodiment of the present invention will not be described here.
Step 305, to noiseless sub-frame set carry out link circuit self-adapting adjustment so that the control parameter of noiseless sub-frame set meet the control parameter target expect.
Same, when carrying out link circuit self-adapting adjustment to noiseless sub-frame set, the BLER statistic value of the subframe in up-link in preset time period included by noiseless sub-frame set is obtained first, then according to the BLER statistic value and the magnitude relationship of block error probability desired value, obtain the MC S exponent numbers of noiseless sub-frame set, and send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, in order to terminal device using the MC S exponent numbers in noiseless sub-frame set transmitting data.
Specifically, when the BLER statistic value for the noiseless sub-frame set that base station is obtained is more than block error probability desired value, base station can be according to the BLER statistic value and mistake of noiseless sub-frame set The difference of block rate desired value, obtain the SINR corrections of noiseless sub-frame set, then according to average SINR and SINR corrections, obtain the MC S exponent numbers of noiseless sub-frame set, then up license signaling is sent to terminal device, the up license signaling includes the MCS exponent numbers, the terminal device is received after up license signaling, obtain the MC S exponent numbers, and using the MC S exponent numbers in noiseless sub-frame set transmitting data, when terminal device selects the M C S exponent numbers in noiseless sub-frame set transmitting data, the Block Error Rate of noiseless sub-frame set can be reduced, so that the Block Error Rate of noiseless sub-frame set converges to block error probability desired value；When the BLER statistic value for the noiseless sub-frame set that base station is obtained is less than block error probability desired value, base station can be according to the BLER statistic value and the difference of block error probability desired value of noiseless sub-frame set, obtain the SINR corrections of noiseless sub-frame set, then according to average SINR and SINR corrections, obtain the MC S exponent numbers of noiseless sub-frame set, and send up license signaling to terminal device, the up license signaling includes the MC S exponent numbers, the terminal device is received after up license signaling, obtain the MC S exponent numbers, and using the MCS exponent numbers in noiseless sub-frame set transmitting data, when terminal device selects the MCS exponent numbers in noiseless sub-frame set transmitting data, the Block Error Rate of noiseless sub-frame set can be increased, so that the Block Error Rate of noiseless sub-frame set converges to block error probability desired value.The acquisition process of average SINR and SINR corrections is prior art, and the embodiment of the present invention will not be described here.
The embodiment of the present invention is interfering subframe set and noiseless sub-frame set setting identical block error probability desired value, and link circuit self-adapting adjustment is carried out respectively to two sub-frame sets, it is ensured that the BLER statistic value of subframe can converge to identical block error probability desired value in link.
Need explanation, the sequencing of the step of link circuit self-adapting method of adjustment provided in an embodiment of the present invention can be adjusted suitably, step according to circumstances can also accordingly be increased and decreased, example, the tandem of step 302 and step 303 in the present embodiment can be exchanged, the tandem of step 304 and step 305 can also be exchanged, any one skilled in the art the invention discloses technical scope in, the method that change can be readily occurred in, it should all be included within the scope of the present invention, therefore repeat no more.
The method of link circuit self-adapting adjustment provided in an embodiment of the present invention, multiple subframes in link when carrying out link circuit self-adapting adjustment, classify obtaining two sub-frame sets first, Respectively interfering subframe set and noiseless sub-frame set, then the target for setting control parameter and control parameter respectively for two sub-frame sets is expected, and link circuit self-adapting adjustment is carried out respectively to two sub-frame sets, while link adaptation techniques control ability is strengthened, systematic function is effectively improved.
The embodiment of the present invention provides a kind of base station 40, as shown in figure 4, including：
Taxon 401, for being M subframe set by multiple sub-frame divisions in link, chain route base station is set up with terminal device, and each sub-frame set in M sub-frame set includes at least one subframe, and M is the integer more than or equal to 2.
The link is the up-link or downlink set up between base station 40 and terminal device, when carrying out link circuit self-adapting adjustment, the taxon 401 of base station 40 can be classified the subframe of each in link, obtain M subframe set, and M is the integer more than or equal to 2.
Setup unit 402, the target for setting the control parameter adaptively adjusted and the control parameter respectively for each sub-frame set in the M subframe set that is divided for taxon 401 is expected.
The control parameter adaptively adjusted includes one or its combination in Block Error Rate, the bit error rate, average repeat time, mean transit delay, average spectral efficiency (ase) of link etc., and control parameter can control the practical communication quality of link.In practical application, control parameter is also possible that the other specification of link circuit self-adapting adjustment technology, and the embodiment of the present invention is not limited this.It can be a specific value that target, which is expected, for example, the target of Block Error Rate can be set to be desired for 10%, optionally, it can also be an optimization aim that target, which is expected, for example, when the control parameter adaptively adjusted is the average spectral efficiency (ase) of data transfer, the target of the control parameter is expected to may be such that average spectral efficiency (ase) is issued to maximum in existing link-quality, optionally, target expectation can also be the desired combination of target of multiple control parameters, for example average spectral efficiency (ase) is caused to reach maximum on the premise of average repeat time is less than 1 time.
Example, when carrying out link circuit self-adapting adjustment, setup unit 402 can set control parameter of the Block Error Rate as each sub-frame set, and expect for the same or different block error probability desired value of Block Error Rate setting of each sub-frame set as target, or set control parameter of the mean transit delay as each sub-frame set, set same or different mean transit delay desired value as the target of control parameter to expect, average spectral efficiency (ase) can also be set as control Parameter processed, sets same or different average spectral efficiency (ase) value as target expectation of control parameter etc., is set in practical application according to specific requirement, the embodiment of the present invention is not limited this.Need explanation, the target expectation of different control parameters and the control parameter can also be set for different sub-frame sets, the control parameter that for example, the first sub-frame set is set is Block Error Rate, the target of the control parameter is desired for being not more than 1 % for Block Error Rate, the control parameter set for the second sub-frame set is average spectral efficiency (ase), and the target of the control parameter is desired for average spectral efficiency (ase) maximization etc..
Adjustment unit 403, link circuit self-adapting adjustment is carried out for each sub-frame set in the M subframe set that is divided to taxon 401 so that the corresponding control parameter of each sub-frame set meets the target expectation of control parameter after adjustment.
Specifically, adjustment unit 403 is expected to carry out link circuit self-adapting adjustment to each sub-frame set according to the control parameter of each sub-frame set and the target of control parameter, for example, the Block Error Rate of first sub-frame set is adaptively adjusted, the target of the Block Error Rate of setting is desired for 10%, then 403 pair of first sub-frame set of adjustment unit carries out link circuit self-adapting adjustment so that the actual Block Error Rate of the first sub-frame set converges to 10%.
When link circuit self-adapting adjustment is carried out, taxon is first classified multiple subframes in link, obtain multiple sub-frame sets, then setup unit is expected for the target of each sub-frame set setting control parameter and control parameter, adjustment unit carries out link circuit self-adapting adjustment to each sub-frame set respectively, while link adaptation techniques control ability is strengthened, systematic function is effectively improved.
Example, if what base station 40 anticipated that subframe is disturbed situation, or base station 40 can go out whether subframe is interfered with anticipation, when multiple subframes in link are classified, multiple sub-frame divisions in link can be interfering subframe set and noiseless sub-frame set by taxon 401；Wherein, interfering subframe set includes all subframes being disturbed in multiple subframes, and noiseless sub-frame set includes all interference-free subframes in multiple subframes.
Example, in actual applications, link may also be subjected to periodic interference, and the cycle of the PERIODIC INTERFERENCE is T milliseconds, and the periodic disturbances duration is L milliseconds, 0<L<T.Now taxon 401 can be also used for, and be K sub-frame set by multiple sub-frame divisions in link, and K is the integer more than or equal to 2, and M is equal to Κ, and K sub-frame set is the 0th Sub-frame set is to（K- l) sub-frame set.Will（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in K sub-frame set, j is integer, 0 j（K- l), i is the integer more than or equal to 0.
Example, also there is SRS in the up-link of LTE system, data can not be transmitted for carrying reference signal due to last data symbol in SRS subframes, therefore the equivalent code check of the subframe transmitting data is caused to improve, so as to have impact on the demodulation performance of the subframe including SRS symbols, the demodulation ability of the subframe is caused further to be deteriorated, the data symbol for carrying reference signal is referred to as SRS symbols, including the subframe of SRS symbols is referred to as SRS subframes.Therefore, when there is SRS in link, all sub-frame divisions that the link can be included are multiple sub-frame sets, example, taxon 401 can be also used for, it is the first sub-frame set, the second sub-frame set and the 3rd sub-frame set by multiple sub-frame divisions in link, M is equal to 3;Wherein, first sub-frame set includes all SRS subframes in multiple subframes, second sub-frame set includes first subframe after each SRS in multiple subframes, and the 3rd sub-frame set includes all subframes in addition to the first sub-frame set and the second sub-frame set in multiple subframes.In practical application, when considering the influence of SRS demodulation ability, up-link can also be divided according to other criteria for classifications, the embodiment of the present invention is not limited this.
Explanation is needed, the method classified to the subframe in link is varied, can be set as the case may be in practical application, and sorting technique provided in an embodiment of the present invention is merely illustrative, and specific sorting technique is not limited.
Specifically, link circuit self-adapting adjustment can be that up-link is adaptively adjusted, can also be that downlink is adaptively adjusted, example, when the up-link set up to base station and terminal device is adaptively adjusted, setup unit 402 can set the control parameter that Block Error Rate is adaptively adjusted as each sub-frame set, block error probability desired value is set as the target of the control parameter of each sub-frame set to expect, and the block error probability desired value all same of each sub-frame set.
Specifically, base station 40 can be the target expectation of control parameter and the control parameter that each sub-frame set is set according to setup unit 402, and adaptive uplink adjustment is carried out respectively to each sub-frame set, example, first sub-frame set is adaptively adjusted, first Sub-frame set is any one sub-frame set in M subframe set, as shown in Figure 5, base station 40 also includes acquiring unit 404, BLER statistic value for obtaining the first sub-frame set in preset time period in up-link, then according to the BLER statistic value and the magnitude relationship of block error probability desired value of the first sub-frame set, obtain the MCS exponent numbers of the first sub-frame set, base station 40 also includes transmitting element 405, for sending up license signaling to terminal device, up license signaling includes the MC S exponent numbers, so that terminal device uses the MC S exponent numbers in the first sub-frame set transmitting data, the terminal device sets up up-link with base station.
Optionally, when the BLER statistic value for the first sub-frame set that acquiring unit 404 is obtained is more than block error probability desired value, the acquiring unit 404 is according to the BLER statistic value and the difference of block error probability desired value of the first sub-frame set, obtain the MC S exponent numbers of the first sub-frame set, then up license signaling is sent to terminal device by transmitting element 405, the up license signaling includes the MC S exponent numbers, the terminal device is using the MC S exponent numbers in the first sub-frame set transmitting data, when terminal device selects the MCS exponent numbers in the first sub-frame set transmitting data, the Block Error Rate of the first sub-frame set can be reduced, so that the Block Error Rate of the first sub-frame set converges to block error probability desired value；When the BLER statistic value for the first sub-frame set that acquiring unit 404 is obtained is less than block error probability desired value, the acquiring unit 404 is according to the BLER statistic value and the difference of block error probability desired value of the first sub-frame set, obtain the MCS exponent numbers of the first sub-frame set, then up license signaling is sent to terminal device by transmitting element 405, the up license signaling includes the MC S exponent numbers, the terminal device is using the MC S exponent numbers in the first sub-frame set transmitting data, when terminal device selects the MCS exponent numbers in the first sub-frame set transmitting data, the Block Error Rate of the first sub-frame set can be increased, so that the Block Error Rate of the first sub-frame set converges to block error probability desired value.
The embodiment of the present invention is only illustrated exemplified by controlling Block Error Rate, in practical application, the target that other control parameters and other control parameters can also be set is expected, and then realizes the link circuit self-adapting adjustment carried out to different sub-frame sets, and the embodiment of the present invention is not repeated this.The method of adjustment of adjustment unit 103 is merely illustrative in the present embodiment, in practical application, ^:The blunt target according to different control parameters and the control parameter is expected to be adjusted using other suitable existing adaptive techniques, and the embodiment of the present invention is not repeated this.
It should be noted that the taxon in the present embodiment can be base station processor, It can be integrated in some processor of base station and realize, in addition it is also possible to be stored in the form of program code in the memory of base station, be called by some processor of base station and perform the function of above taxon.The realization of setup unit is similar to taxon, and can be integrated with taxon, can also independently realize, the realization of adjustment unit is similar to setup unit.Processor described here can be a central processing unit（Central Processing Unit, CPU), or specific integrated circuit（Application Specific Integrated Circuit, ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.
Base station in the embodiment of the present invention is with the evolved base station in LTE systems（Evolved NodeB, eNB) exemplified by illustrate or other have the base station of link circuit self-adapting modulation function, the embodiment of the present invention is not limited this.
Base station provided in an embodiment of the present invention, when carrying out link circuit self-adapting adjustment, taxon is classified the subframe of link first, obtain multiple sub-frame sets, then setup unit is expected for control parameter and control parameter the target of each sub-frame set setting Self Adaptive Control, and link circuit self-adapting adjustment is carried out by adjustment unit respectively to each sub-frame set, compared to prior art, while link adaptation techniques control ability is strengthened, systematic function is effectively improved.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the device of foregoing description and the specific work process of unit may be referred to the corresponding process in embodiment of the method, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can With positioned at a place, or it can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or the independent physics of unit includes, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (1)

  1. Claims
    1st, a kind of base station, it is characterised in that including：
    Taxon, for being M sub-frame set by multiple sub-frame divisions in link, the chain route the base station and set up with terminal device, and each sub-frame set in the M sub-frame set includes at least one subframe, and the M is the integer more than or equal to 2；
    Setup unit, the target for setting the control parameter adaptively adjusted and the control parameter respectively for each sub-frame set in the M sub-frame set that is divided for the taxon is expected；
    Adjustment unit, link circuit self-adapting adjustment is carried out for each sub-frame set in the M sub-frame set that is divided to the taxon so that the target that the corresponding control parameter of each sub-frame set meets the control parameter after adjustment is expected.
    2nd, the base station according to claim 1, it is characterised in that the taxon is specifically for being interfering subframe set and noiseless sub-frame set by multiple sub-frame divisions in the link；
    Wherein, the interfering subframe set includes all subframes being disturbed in the multiple subframe, and the noiseless sub-frame set includes all interference-free subframes in the multiple subframe.
    3rd, the base station according to claim 1, it is characterized in that, the taxon specifically for, when the link is by PERIODIC INTERFERENCE, it is K sub-frame set by multiple sub-frame divisions in the link, the interference period of the PERIODIC INTERFERENCE is T milliseconds, and the periodic disturbances duration is L milliseconds, 0<L<T, K are the integer more than or equal to 2, and the M is equal to K;
    Wherein, the K sub-frame set is the 0th sub-frame set to the（K- 1) sub-frame set, will（J/K+i) T is arrived（J/K+ l/K+i) T sub-frame division to the jth sub-frame set in the K sub-frame set, the j is integer, 0 j（K- l), the i is the integer more than or equal to 0.
    4th, the base station according to claim 1, it is characterized in that, the taxon specifically for, when the link includes detection reference signal SRS subframes, it is the first sub-frame set, the second sub-frame set and the 3rd sub-frame set by multiple sub-frame divisions in the link, the M is equal to 3; Wherein, first sub-frame set includes all SRSs in the multiple subframe, second sub-frame set includes first subframe after each SRS in the multiple subframe, and the 3rd sub-frame set includes all subframes in addition to first sub-frame set and second sub-frame set in the multiple subframe.
    5th, the base station according to claim 1 to 4 any one claim, it is characterised in that
    The setup unit is specifically for Block Error Rate to be set as to the control parameter of each sub-frame set；
    Block error probability desired value being set as to, the target of the control parameter of each sub-frame set is expected, the block error probability desired value all same of each sub-frame set.
    6th, base station according to claim 5, it is characterised in that the link is up-link,
    The base station also includes acquiring unit, and the acquiring unit is used to obtain in the up-link BLER statistic value of the first sub-frame set in the M subframe set in preset time period；According to the BLER statistic value of first sub-frame set and the magnitude relationship of the block error probability desired value, the modulation coding mode MCS exponent numbers of first sub-frame set are obtained；
    The base station also includes transmitting element, the transmitting element is used to send up license signaling to the terminal device, the up license signaling includes the MCS exponent numbers, in order to the terminal device using the MCS exponent numbers in the first sub-frame set transmitting data, the terminal device sets up the up-link with the base station.
    7th, a kind of method of link circuit self-adapting adjustment, for base station, it is characterised in that including：It is M sub-frame set by multiple sub-frame divisions in link, the chain route the base station and set up with terminal device, each sub-frame set in the M sub-frame set includes at least one subframe, the M is the integer more than or equal to 2；
    The target for setting the control parameter adaptively adjusted and the control parameter respectively for each sub-frame set in the M sub-frame set is expected；
    Link circuit self-adapting adjustment is carried out to each sub-frame set in the M sub-frame set so that the target that the corresponding control parameter of each sub-frame set meets the control parameter after adjustment is expected. 8th, method according to claim 7, it is characterised in that the M is equal to 2, and multiple sub-frame divisions by link are that M subframe set includes：
    It is interfering subframe set and noiseless sub-frame set by multiple sub-frame divisions in the link；
    Wherein, the interfering subframe set includes all subframes being disturbed in the multiple subframe, and the noiseless sub-frame set includes all interference-free subframes in the multiple subframe.
    9th, method according to claim 7, it is characterised in that multiple sub-frame divisions by link are that M subframe set includes：
    It is K sub-frame set by multiple sub-frame divisions in the link, the interference period of the PERIODIC INTERFERENCE is T milliseconds of milliseconds, and the periodic disturbances duration is L milliseconds, 0 when the link is by PERIODIC INTERFERENCE<L<T, K are the integer more than or equal to 2, and the M is equal to K;
    Wherein, the K sub-frame set is the 0th sub-frame set to the（K- 1) sub-frame set, will（J/K+i) T is arrived（J/K+ l/K+i) T subframe sub-frame division to the jth sub-frame set in the K sub-frame set, the j is integer, 0 j（K- l), the i is the integer more than or equal to 0.
    10th, method according to claim 7, it is characterised in that multiple sub-frame divisions by link are that M subframe set includes：
    It is the first sub-frame set, the second sub-frame set and the 3rd sub-frame set by multiple sub-frame divisions in the link when the link includes detection reference signal SRS subframes, the M is equal to 3;
    Wherein, first sub-frame set includes all SRSs in the multiple subframe, second sub-frame set includes first subframe after each SRS in the multiple subframe, and the 3rd sub-frame set includes all subframes in addition to first sub-frame set and second sub-frame set in the multiple subframe.
    11, the method according to claim 7 to 10 any one claim, characterized in that, each sub-frame set in the M sub-frame set sets the control parameter adaptively adjusted respectively and the target of the control parameter is expected to include：
    Block Error Rate is set as to the control parameter of each sub-frame set； Block error probability desired value being set as to, the target of the control parameter of each sub-frame set is expected, the block error probability desired value all same of each sub-frame set.
    12nd, the method according to claim 11, it is characterised in that the link is up-link, and each sub-frame set in the M sub-frame set, which carries out link circuit self-adapting adjustment, to be included：
    Obtain in the up-link BLER statistic value of the first sub-frame set in the M sub-frame set in preset time period；
    According to the BLER statistic value of first sub-frame set and the magnitude relationship of the block error probability desired value, the modulation coding mode MCS exponent numbers of first sub-frame set are obtained；
    Up license signaling is sent to the terminal device, the up license signaling includes the MCS exponent numbers, in order to the terminal device using the MCS exponent numbers in the first sub-frame set transmitting data, the terminal device sets up the up-link with the base station.
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