CN104904133A - Method and apparatus for selecting transmit antennas in wireless system - Google Patents
Method and apparatus for selecting transmit antennas in wireless system Download PDFInfo
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- CN104904133A CN104904133A CN201380069253.8A CN201380069253A CN104904133A CN 104904133 A CN104904133 A CN 104904133A CN 201380069253 A CN201380069253 A CN 201380069253A CN 104904133 A CN104904133 A CN 104904133A
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- energy efficiency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Embodiments of the disclosure provide a method and apparatus for selecting transmit antennas in a wireless system. The method may comprise steps of determining a target number for transmit antennas in the wireless system to maximize energy efficiency; and selecting a target number of transmit antennas associated with a maximized energy efficiency from all transmit antennas in the wireless system.
Description
Technical field
Embodiments of the invention relate in general to the communication technology.More specifically, embodiments of the invention relate to the method and apparatus for selecting the transmitting antenna in wireless system.
Background technology
Along with the growth of energy requirement and the increase of energy cost, in the exploitation of wireless system, pay close attention to energy efficiency (EE) in a large number.
Use the extensive antenna system than antenna (such as, 100 antennas or more) much more in conventional wireless system for allowing, energy efficiency becomes more and more important.Extensive antenna shortcoming is adopted to be the complexity be associated caused due to the independent radio frequency chain of the transmitting antenna for adopting in radio systems.Therefore, when adopting all transmitting antennas, corresponding energy efficiency may not be best.
In view of the above problems, need to adopt emitting antenna selecting in the wireless system (such as comprising the mimo system of extensive multiple antenna), so that effectively and improve the energy efficiency of wireless system efficiently.
Summary of the invention
The present invention proposes the solution of the transmitting antenna that a kind of selection will adopt in radio systems.Particularly, The embodiment provides the method and apparatus for selecting the transmitting antenna in wireless system, the method and device can improve the energy efficiency of wireless system effectively.
According to a first aspect of the invention, The embodiment provides a kind of for selecting the method for the transmitting antenna in wireless system.The method can comprise: determine in order to maximum energy efficiency, the target numbers of transmitting antenna in wireless system; And the target numbers transmitting antenna that selection is associated with maximized energy efficiency from all transmitting antennas wireless system.
According to a second aspect of the invention, The embodiment provides a kind of for selecting the device of the transmitting antenna in wireless system.This device can comprise: determiner, be configured to determine in order to maximum energy efficiency, the target numbers of transmitting antenna in wireless system; And selector, be configured to the target numbers transmitting antenna selecting to be associated with maximized energy efficiency from all transmitting antennas wireless system.
When reading by reference to the accompanying drawings, from the following description of specific embodiment, other feature and advantage of embodiments of the invention will be apparent, and accompanying drawing illustrates the principle of embodiments of the invention by way of example.
Accompanying drawing explanation
Present embodiments of the invention from the meaning of example, and further illustrate the advantage of embodiments of the invention below with reference to accompanying drawing, in the accompanying drawings
Fig. 1 illustrates the flow chart of the method 100 selecting the transmitting antenna in wireless system according to an embodiment of the invention;
Fig. 2 illustrate according to another embodiment of the present invention for determine in order to maximum energy efficiency, the flow chart of the method 200 of the target numbers of transmitting antenna in wireless system;
Fig. 3 illustrate according to still another embodiment of the invention for determine in order to maximum energy efficiency, the flow chart of the method 300 of the target numbers of transmitting antenna in wireless system; And
Fig. 4 illustrates according to an embodiment of the invention for selecting the block diagram of the device 400 of the transmitting antenna in wireless system.
In the accompanying drawings, same or analogous Reference numeral indicates same or analogous element.
Embodiment
Various embodiment of the present invention is specifically described with reference to accompanying drawing.Flow chart in accompanying drawing and block diagram illustrate devices in accordance with embodiments of the present invention, method and the framework that can be performed by computer program, function and operation.In this respect, each frame in flow chart or frame can represent the module of the one or more executable instructions comprised for performing specific logical function, a part for journey logic bomb.It should be noted that in some substitute, the function indicated in frame can be different from occurring in sequence of order shown in accompanying drawing.Such as, in fact two frames illustrated continuously can come substantially to perform concurrently or in reverse order according to correlation function.Shall also be noted that each frame in block diagram and/or flow chart and combination thereof can realize by the special hardware based system for performing specific function/operation or by the combination of specialized hardware or computer instruction.
First the flow chart of the method 100 selecting the transmitting antenna in wireless system is according to an embodiment of the invention illustrated with reference to figure 1, Fig. 1.According to embodiments of the invention, method 100 can such as be performed by base station (BS), base station controller (BSC), radio network controller (RNC), gateway, repeater, server or any other suitable equipment.
After method 100 starts, in step S101 place, determine in order to maximum energy efficiency, the target numbers of transmitting antenna in wireless system.
About the multiaerial system of such as multiple-input and multiple-output (MIMO) system or multiple input single output (MISO) system, multiple transmitting antenna may be there is in systems in which.Therefore, can such as according to well known to a person skilled in the art that solution obtains the total number of all transmitting antennas.
According to embodiments of the invention, wherein, the target numbers of transmitting antenna can be determined in a number of ways.In one embodiment, first, at least one energy efficiency of to test number with at least one of transmitting antenna and being associated can be calculated; Maximum power efficiency can be selected from this at least one energy efficiency; Then, the test number be associated with maximum power efficiency can be defined as target numbers.According to embodiments of the invention, test number is less than or equal to the RF chain number (that is, the number of RF link) in wireless system.Other details can be obtained in the description about the embodiment shown in Fig. 2.
In another embodiment, one or more number of candidates of transmitting antenna first can be determined based at least one energy efficiency; The acquistion probability of one or more number of candidates can be calculated; And then, can determine that from one or more number of candidates the number of candidates with maximum acquistion probability is as target numbers based on calculated acquistion probability.According to embodiments of the invention, can determine one or more number of candidates by following: the multiple test numbers arranging transmitting antenna, wherein, each in multiple test number is less than or equal to the number of the RF chain in wireless system; Calculate the many groups energy efficiency be associated with multiple test number; And determine one or more number of candidates based on many group energy efficiencies, wherein each number of candidates is associated with the every maximum power efficiency organized in energy efficiency.Other details can be obtained in the description about the embodiment shown in Fig. 3.
According to embodiments of the invention, energy efficiency can be obtained based on the spectrum efficiency of emitting side, through-put power and circuitry consumes power.Such as, equation (1) can be passed through and carry out energy efficiency
Wherein η indicates energy efficiency, and N indicates the total number of transmitting antenna, and L indicates the test number of transmitting antenna, and ρ is the signal to noise ratio (SNR) of emitting side, P
tthe through-put power of emitting side, and P
cit is the way circuit power consumption of wireless system.
According to embodiments of the invention, circuitry consumes power refers to the gross power that emitting side consumes.Circuitry consumes power P can be obtained respectively based on the active filter and AD converter (ADC) etc. of the active filter of digital-to-analog converter (DAC), blender, transmitter side, frequency synthesizer, low noise amplifier, intermediate frequency amplifier, receiver side
c.In one embodiment, equation (2) can be passed through and carry out counting circuit consumed power:
P
c＝M
t(P
DAC+P
mix+P
filt)+2P
syn+M
r(P
LNA+P
mix+P
IFA+P
filr+P
ADC) (2)
Wherein P
dACthe consumed power of instruction DAC, P
mixthe consumed power of instruction blender, P
filtthe consumed power of the active filter of instruction emitting side, P
synthe consumed power of instruction frequency synthesizer, P
lNAthe consumed power of instruction low noise amplifier, P
iFAthe consumed power of instruction intermediate frequency amplifier, P
filrthe consumed power of the active filter of instruction receiver side, P
aDCthe consumed power of instruction ADC, M
tthe number of instruction transmitting antenna, and M
rthe number of instruction reception antenna.
For mimo system, M
tand M
rthe two can be greater than 1 integer.In addition, for MISO system, M
rcan 1 be equaled.
It should be noted that for particular wireless system, different equatioies can be applied and carry out energy efficiency.For the object illustrated instead of limit, above-mentioned equation (1) is only example.Similarly, shown equation (2) is also only example.The person skilled in the art will easily understand, other suitable algorithms also can be applicable to embodiments of the invention.
In step S102 place, from all transmitting antennas wireless system, select the target numbers transmitting antenna be associated with maximized energy efficiency.
According to embodiments of the invention, first can calculating the multiple channel quality value for organizing transmitting antenna more, wherein, often organizing transmitting antenna and comprising a target numbers transmitting antenna; Then, one group of transmitting antenna with maximum channel quality can be selected according to multiple channel quality value from many group transmitting antennas.
It should be noted that except above-described embodiment, also there are other modes of the target numbers for selecting transmitting antenna, and when realizing embodiments of the invention, those skilled in the art will select suitable mode.
With reference now to Fig. 2, Fig. 2, illustrate the flow chart of the method 200 for selecting the transmitting antenna in wireless system according to another embodiment of the present invention.Method 200 can be considered the embodiment of the step S101 of the method 100 that above reference diagram 1 describes.In the following description of method 200, at least one test number of transmitting antenna is used for energy efficiency, and the test number be associated with maximum power efficiency is confirmed as target numbers.Note, however, this is only for illustration of the object of principle of the present invention, instead of limit its scope.
After method 200 starts, in step S201 place, calculating and at least one of transmitting antenna test at least one energy efficiency that number is associated.
According to embodiments of the invention, test number can be less than or equal to the RF chain number in wireless system.In certain embodiments, RF chain number can be less than or equal to the total number of transmitting antenna.Such as, for the mimo system with 100 transmitting antennas and 50 RF chains, total number is 100 and RF chain number is 50, and to test number can be any integer from 1 to 50.The embodiment illustrated according to utilizing Fig. 2, there is at least one test number, in other words, one or more test number is for finding the target numbers be associated with optimum capacity efficiency.One or more test number can have the different value in the scope of 1 to 50.
According to embodiments of the invention, there are 30 test numbers (such as, each test number is the value in 41 to 70 scopes), therefore, 30 energy efficiencies can be calculated according to for such as obtaining the appropriate algorithm of energy efficiency by equation (1).Particularly, when test number be 41,42,43 ..., 69 or 70 time, the parameter L in equation (1) is also 41,42,43 ..., 69 or 70.
In step S202 place, from least one energy efficiency, select maximum power efficiency.
Consider above-described embodiment, about 30 energy efficiencies calculated, can from wherein selecting maximum energy efficiency.
In step S203 place, the test number be associated with maximum power efficiency is confirmed as target numbers.
Once have selected maximum power efficiency from calculated 30 energy efficiencies, the test number be associated with maximum power efficiency just can be determined.According to embodiment, this test number can as target numbers.In other words, a target numbers transmitting antenna is the set with the transmitting antenna of optimum capacity efficiency in the middle of the transmitting antenna of total number in wireless system.In some embodiments of the invention, target numbers equals total number.In some other embodiments, target numbers is less than total number; That is, in this case, all transmitting antennas are adopted can not to obtain optimum capacity efficiency during the transmission.
Fig. 3 illustrates the flow chart of the method 300 for selecting the transmitting antenna in wireless system according to still another embodiment of the invention.Method 300 can be considered the embodiment of the step S101 of the method 100 described with reference to figure 1.In the following description of method 300, first determine one or more number of candidates based on energy efficiency, and then, the acquistion probability based on these number of candidates is come from one or more number of candidates determination target numbers.In like fashion, the target numbers of transmitting antenna can effectively be determined.Note, however, this is only for object principle of the present invention being described instead of limit its scope.
After method 300 starts, in step S301 place, multiple test number is arranged to transmitting antenna.
According to embodiments of the invention, can arrange randomly according to the preference of those skilled in the art or define test number.Such as, 50 test numbers can be set, wherein, each test number can be defined as from 1 to 50 to scope and value different from each other.
According to embodiments of the invention, each the test number in multiple test number is less than or equal to the number of the RF chain in wireless system.
According to embodiments of the invention, the number of pre-defined multiple test number such as can be carried out by operator or those skilled in the art.Note, if this number is larger, that is, there is more test numbers, then result is more accurate, but needs the more time; On the other hand, if this number is little, that is, there is less test number, then the accuracy of result may reduce to a certain extent, but needs the less time.
In step S302 place, calculate the many groups energy efficiency be associated with multiple test number.
According to embodiments of the invention, about a test number, one group of energy efficiency can be calculated.Therefore, a test number is associated with one group of energy efficiency.
According to embodiments of the invention, test number can be less than or equal to the number of the RF chain in wireless system.In one embodiment, when there being 50 to test number, 50 groups of energy efficiencies can be calculated, wherein can calculate one group of energy efficiency according to equation (1) about a test number in 50 test numbers.Such as, when test number is M, the one group of energy efficiency comprising M energy efficiency can be calculated, wherein calculate an energy efficiency about a number in M number.
In step S303 place, determine one or more number of candidates based on many group energy efficiencies.
According to embodiments of the invention, for one group of energy efficiency, maximum power efficiency can be obtained from the energy efficiency this group.Therefore, i-th number be associated with the maximum power efficiency in this group energy efficiency can be defined as number of candidates, wherein i is less than or equal to current test number, that is, i≤M.
In certain embodiments, L test number is set in step S301 place, thus, calculates and L the L group energy efficiency of testing number and being associated in step S302 place.Then, in step S303 place, L number of candidates can be determined based on L group energy efficiency.
In step S304 place, the acquistion probability of calculated candidate number.
According to embodiments of the invention, acquistion probability can be calculated about number of candidates.Such as, suppose to be provided with L test number in step S301 place and L=10, therefore obtain L number of candidates in step S303 place, it is 51,62,43,51,37,51,50,68,62 and 75 respectively.Can determine that number of candidates 51 occurs three times, number of candidates 62 occurs twice, and other number of candidates (such as 43,37,50,68 and 75) each occur once.In certain embodiments, the acquistion probability of each number of candidates can be calculated as the ratio of the total number of its occurrence number and number of candidates L.Therefore, the acquistion probability of number of candidates 51 is 30%, and the acquistion probability of number of candidates 62 is 20%, and the acquistion probability of each in other number of candidates is 10%.
In step S305 place, based on calculated acquistion probability, the number of candidates with maximum acquistion probability is defined as target numbers.
According to the acquistion probability of the number of candidates calculated in step S304 place, maximum acquistion probability can be determined from calculated acquistion probability.Such as, 30%.Correspondingly, the number of candidates corresponding with maximum acquistion probability can be determined.In the above-described embodiments, because number of candidates 51 has maximum occupation probability 30%, target numbers 51 can be determined.
According to embodiments of the invention, method 300 can be realized by iterative process as follows.
Hereinbefore,
N represents iterations;
L
(n)represent the test number selected when n-th iteration;
P [n, l] represents the probability selecting l antenna after n iterations;
L represents test number destination aggregation (mda);
η [n, l] represents the energy efficiency when n-th iteration by using l antenna to calculate; And
D [n, l] instruction is when n-th iteration, if selection l
*, then D [n, l
*]=1 and D [n, l ≠ l
*]=0.
When initialization, test number l can be determined randomly
(0).In addition, acquistion probability can be initialized to p [n, l
(0)]=1 and p [n, l ≠ l
(0)]=0.
When each iteration n, as one man select another number
and it is different from previous optimal selection l
(n-1).
Next, by target function and the number newly selected
with previous l
(n-1)make comparisons, if new one performs better, then will
be set to optimal selection during iteration n, namely
otherwise keep previous result l
(n)=l
(n-1).In order to represent simply, selected number is mapped to sequence D [n].If select l
*, then D [n, l
*]=1 and D [n, l ≠ l
*]=0.D [n] is for upgrading acquistion probability at next step.
In addition, acquistion probability p [n] is upgraded.If represent M for each l ∈ L
(n)[l], when the counter of number of times l is selected as the optimal selection after n iteration, then acquistion probability can be represented as p [n]=(1/n) [M
(n)[l
1], M
(n)[l
2], M
(n)[l
3] ... ].That is, this algorithms selection is at present by the number l the most frequently selected
*.
In addition, by optimal selection l during n-th iteration
(n)acquistion probability and (n-1) individual iteration after optimum value
make comparisons.Therefore, optimum value can be upgraded according to comparative result
as implied above, if the acquistion probability p [n, the l that obtain n-th iteration
(n)] be greater than in (n-1) secondary iteration acquisition acquistion probability
then use l
(n)upgrade
otherwise use
upgrade
In like fashion, corresponding with maximum power efficiency number
can number of candidates be confirmed as, and there is the number of candidates of maximum acquistion probability
target numbers can be confirmed as.Like this, after performing iterative process as implied above, target numbers can be obtained.
In order to the object of spirit of the present invention and principle is described, be described above specific embodiments more of the present invention.It will be understood by those skilled in the art that and when not deviating from scope of the present invention, can change and amendment embodiments of the invention.
With reference now to Fig. 4, Fig. 4, illustrate according to an embodiment of the invention for selecting the block diagram of the device 400 of the transmitting antenna in wireless system.As shown, this device 400 comprises: determiner 410, be configured to determine in order to maximum energy efficiency, the target numbers of transmitting antenna in wireless system; And selector 420, be configured to the target numbers transmitting antenna selecting to be associated with maximized energy efficiency from all transmitting antennas wireless system.
According to embodiments of the invention, determiner 410 can comprise: the first computing unit, be configured to calculate at least one energy efficiency of to test number with at least one of transmitting antenna and being associated, wherein test number is less than or equal to the number of the RF chain in wireless system; First selected cell, is configured to select maximum power efficiency from least one energy efficiency; And first determining unit, be configured to the test number be associated with maximum power efficiency to be defined as target numbers.
According to embodiments of the invention, determiner 410 can comprise: the second determining unit, is configured to the one or more number of candidates determining transmitting antenna based at least one energy efficiency; And first computing unit, be configured to the acquistion probability calculating one or more number of candidates; And the 3rd determining unit, the number of candidates with maximum acquistion probability in one or more number of candidates is defined as target numbers by the acquistion probability be configured to based on calculating.
In certain embodiments, second determining unit of determiner 410 can comprise: setting unit, be configured to arrange multiple multiple test numbers for transmitting antenna, each test number wherein in multiple test number is less than or equal to the number of the RF chain in wireless system; Second computing unit, is configured to calculate the many groups energy efficiency be associated with multiple test number; And the 4th determining unit, be configured to determine one or more number of candidates based on many group energy efficiencies, wherein each number of candidates is associated with the every maximum power efficiency organized in energy efficiency.
In certain embodiments, selector 420 can comprise: the 3rd computing unit, and be configured to the multiple channel quality value calculating many group transmitting antennas, wherein often group comprises the target numbers of transmitting antenna; And second selected cell, be configured to the one group of transmitting antenna selecting to have maximum channel mass value according to multiple channel quality value from many group transmitting antennas.
According to embodiments of the invention, energy efficiency can be obtained based on the spectrum efficiency of emitting side, through-put power and circuitry consumes power.
In certain embodiments, energy efficiency can be carried out by following formula
Wherein η indicates energy efficiency, and N indicates the total number of transmitting antenna, and L indicates the test number of transmitting antenna, and ρ is the SNR of emitting side, P
tthe through-put power of emitting side, and P
cit is the way circuit power consumption of wireless system.
Note, device 400 can be implemented in RNC, BS, BSC, gateway, repeater, server or any other suitable equipment, and this device 400 can be applied in some communication networks of such as GSM, CDMA, UMTS and LTE network.Also note, determiner 410 and selector 420 can be realized by current any suitable technology that is known or following exploitation.In addition, the individual equipment shown in Fig. 4 can alternatively realize separately in multiple equipment, and can realize multiple autonomous device in one single.Do not limit the scope of the invention in these areas.
Note, in some embodiments of the invention, device 400 can be configured to the function realizing describing with reference to figure 1-3.Therefore, the feature discussed about any one in method 100 to 400 can be applied to the corresponding assembly of device 400.Also note, the assembly of implement device 400 can be carried out with hardware, software, firmware and/or its any combination.Such as, the assembly of device 400 can be realized by circuit, processor or any other suitable selection equipment.It will be understood by those skilled in the art that the object that above-described embodiment is only illustrative rather than definitive thereof.
In embodiments more of the present disclosure, equipment 400 comprises at least one processor.By way of example, at least one processor being applicable to use together with embodiment of the present disclosure can comprise general and both application specific processors of known or following exploitation.This device 400 comprises at least one memory further.This at least one memory can comprise such as semiconductor memory apparatus, such as, and RAM, ROM, EPROM, EEPROM and flash memory device.This at least one memory may be used for the program storing computer executable instructions.This program can be write with any senior and/or lower level assembler or soluble programming language.According to embodiment, computer executable instructions can be configured by least one processor, at least perform according to said method 400 to make device 400.
In embodiments more of the present disclosure, device 400 comprises at least one processor.By way of example, at least one processor being applicable to use together with embodiment of the present disclosure can comprise general and application specific processor that is known or that develop in the future.This device 400 comprises at least one memory further.This at least one memory can comprise such as semiconductor memory apparatus, such as, and RAM, ROM, EPROM, EEPROM and flash memory device.This at least one memory may be used for the program storing computer executable instructions.This program can be write with any senior and/or lower level assembler or soluble programming language.According to embodiment, computer executable instructions can be configured by least one processor, at least perform according to said method 100,200 or 300 to make device 400.
Based on above description, it will be appreciated by those skilled in the art that the disclosure can embody with device, method or computer program.Usually, various exemplary embodiment can realize with hardware or special circuit, software, its any combination of logic OR.Such as, some aspects can with hardware implementing, and other aspects can realize with firmware or software, and this firmware or software can be performed by controller, microprocessor or other computing equipments, but the disclosure is not limited thereto.Although the various aspects of exemplary embodiment of the present disclosure can be illustrated and be described as block diagram, flow chart or use some other diagrammatic representations, but be well understood that, in a non-limiting example, these frame described herein, device, system, technology or methods can to realize in hardware, software, firmware, special circuit or logic, common hardware or controller or other computing equipments or its some combinations.
Shown in Fig. 1 to 3 each piece can be considered method step and/or the operation that obtains from the operation of computer program code and/or be configured to the multiple coupled logic circuit elements performing correlation function.At least some aspect of exemplary embodiment of the present disclosure is put into practice with various assembly, such as integrated circuit (IC) chip and module.And exemplary embodiment of the present disclosure can realize in such as lower device, and this device is withdrawn deposit as can be configured to the integrated circuit, FPGA or ASIC that operate according to exemplary embodiment of the present disclosure.
Although this specification comprises many specific implementation details, these should not be interpreted as can the restriction of claimed or any scope of disclosure, and as can specific to the description of the feature of concrete disclosed specific embodiment.Can also to combine the special characteristic realizing describing in this manual in the context of individual embodiment in single embodiment.On the contrary, can also respectively in many embodiment: or this realize the various feature that describes in the context of single embodiment with any suitable sub-portfolio.In addition; although more than feature can be described to work with particular combination, and even initial claimed like this, in some cases; claimed one or more features can excision from combination, and claimed combination can for the variant of sub-portfolio or sub-portfolio.
Similarly, although depict operation with concrete order in the accompanying drawings, this is not appreciated that needs with shown concrete order or performs such operation with consecutive order, or needs to perform all illustrated operations to realize the result expected.In some cases, multitask and parallel processing may be favourable.In addition, the separation of the various system components in above-described embodiment is not appreciated that and all needs such separation in all embodiments, and should be appreciated that described program assembly and system usually can be integrated integrated or be encapsulated in multiple software product in single software product.
According to foregoing teachings, when reading by reference to the accompanying drawings, to the various amendments of foregoing example embodiment of the present disclosure, change apparent to those skilled in the art.Any of the present disclosure non-limiting with in the scope of exemplary embodiment by still falling into all modifications.In addition, the technical staff in the field that these embodiments of the present disclosure benefiting from the instruction previously described and present in associated drawings belong to will recognize other embodiments of the present disclosure set forth here.
Therefore, should be appreciated that embodiment of the present disclosure is not limited to disclosed specific embodiment, and amendment and other embodiments are intended to be included within the scope of the appended claims.Although use particular term here, it is used in a generic and descriptive sense and is not used in the object of restriction.
Claims (14)
1., for selecting a method for the transmitting antenna in wireless system, comprising:
Determine the target numbers in order to the transmitting antenna in maximum energy efficiency, described wireless system; And
The target numbers transmitting antenna be associated with maximized energy efficiency is selected from all transmitting antennas described wireless system.
2. method according to claim 1, wherein determine that the target numbers in order to the transmitting antenna in maximum energy efficiency, described wireless system comprises:
One or more number of candidates of described transmitting antenna are determined based at least one energy efficiency;
Calculate the acquistion probability of described one or more number of candidates; And
Based on the described acquistion probability calculated, the number of candidates with maximum acquistion probability in described one or more number of candidates is defined as described target numbers.
3. method according to claim 2, wherein determine that one or more number of candidates of described transmitting antenna comprise based at least one energy efficiency:
Arrange multiple test numbers of described transmitting antenna, each test number in wherein said multiple test number is less than or equal to the number of the RF chain in described wireless system;
Calculate the many groups energy efficiency be associated with described multiple test number; And
Determine described one or more number of candidates based on described many group energy efficiencies, wherein each number of candidates is associated with the every maximum power efficiency organized in energy efficiency.
4. method according to claim 1, wherein determine that the target numbers in order to the transmitting antenna in maximum energy efficiency, described wireless system comprises:
Calculate at least one energy efficiency of to test number with at least one of described transmitting antenna and being associated, wherein said test number is less than or equal to the number of the RF chain in described wireless system;
Maximum power efficiency is selected from least one energy efficiency described; And
The test number be associated with described maximum power efficiency is defined as described target numbers.
5. the method according to any one in claim 1-4, from all transmitting antennas described wireless system, wherein select the target numbers transmitting antenna be associated with maximized energy efficiency to comprise:
Calculate multiple channel quality value of many group transmitting antennas, wherein often group comprises a target numbers transmitting antenna; And
From described many groups, one group of transmitting antenna with maximum channel mass value is selected according to described multiple channel quality value.
6. the method according to any one in claim 1-5, wherein said energy efficiency obtains based on the spectrum efficiency of emitting side, through-put power and circuitry consumes power.
7. method according to claim 6, wherein said energy efficiency is calculated by following formula
Wherein η indicates described energy efficiency, and N indicates the total number of described transmitting antenna, and L indicates the test number of described transmitting antenna, and ρ is the signal to noise ratio (SNR) of described emitting side, P
tthe through-put power of described emitting side, and P
cit is the way circuit power consumption of described wireless system.
8., for selecting a device for the transmitting antenna in wireless system, comprising:
Determiner, described determiner is configured to determine the target numbers in order to the transmitting antenna in maximum energy efficiency, described wireless system; And
Selector, described selector is configured to the target numbers transmitting antenna selecting to be associated with maximized energy efficiency from all transmitting antennas described wireless system.
9. device according to claim 8, wherein said determiner comprises:
Second determining unit, described second determining unit is configured to the one or more number of candidates determining described transmitting antenna based at least one energy efficiency;
First computing unit, described first computing unit is configured to the acquistion probability calculating described one or more number of candidates; And
3rd determining unit, the number of candidates with maximum acquistion probability in described one or more number of candidates is defined as described target numbers by the described acquistion probability that described 3rd determining unit is configured to based on calculating.
10. device according to claim 9, wherein said second determining unit comprises:
Setting unit, described setting unit is configured to the multiple test numbers arranging described transmitting antenna, and each test number in wherein said multiple test number is less than or equal to the number of the RF chain in described wireless system;
Second computing unit, described second computing unit is configured to calculate the many groups energy efficiency be associated with described multiple test number; And
4th determining unit, described 4th determining unit is configured to determine described one or more number of candidates based on described many group energy efficiencies, and wherein each number of candidates is associated with the every maximum power efficiency organized in energy efficiency.
11. devices according to claim 8, wherein, described determiner comprises:
First computing unit, described first computing unit is configured to calculate at least one energy efficiency of to test number with at least one of described transmitting antenna and being associated, and wherein said test number is less than or equal to the number of the RF chain in described wireless system;
First selected cell, described first selected cell is configured to select maximum power efficiency from least one energy efficiency described; And
First determining unit, described first determining unit is configured to the test number be associated with described maximum power efficiency to be defined as described target numbers.
12. devices described in any one according to Claim 8 in-11, wherein said selector comprises:
3rd computing unit, described 3rd computing unit is configured to the multiple channel quality value calculating many group transmitting antennas, and wherein often group comprises a target numbers transmitting antenna; And
Second selected cell, described second selected cell is configured to the one group of transmitting antenna selecting to have maximum channel mass value according to described multiple channel quality value from described many groups.
13. devices described in any one according to Claim 8 in-12, wherein said energy efficiency obtains based on the spectrum efficiency of emitting side, through-put power and circuitry consumes power.
14. devices according to claim 13, wherein said energy efficiency is calculated by following formula
Wherein η indicates described energy efficiency, and N indicates the total number of described transmitting antenna, and L indicates the test number of described transmitting antenna, and ρ is the signal to noise ratio (SNR) of described emitting side, P
tthe through-put power of described emitting side, and P
cit is the way circuit power consumption of described wireless system.
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| PCT/CN2013/070152 WO2014106343A1 (en) | 2013-01-07 | 2013-01-07 | Method and apparatus for selecting transmit antennas in wireless system |
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| CN105450274B (en) * | 2015-11-09 | 2018-11-23 | 东南大学 | Based on the extensive multiple antennas relay system number of users optimization method that efficiency is optimal |
| CN105450275A (en) * | 2015-11-09 | 2016-03-30 | 东南大学 | Optimal energy efficiency-based antenna selection method for multi-user and large-scale antenna relay system |
| CN105828441B (en) * | 2016-04-22 | 2019-04-09 | 东南大学 | A kind of extensive antenna system low complex degree power distribution method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060084461A1 (en) * | 2004-10-18 | 2006-04-20 | Masahiro Sekiya | Wireless communication apparatus and wireless communication system |
| CN101305525A (en) * | 2006-03-30 | 2008-11-12 | 三菱电机研究实验室 | Antenna/beam selection training in MIMO wireless LANS with different sounding frames |
| CN101394257A (en) * | 2007-09-18 | 2009-03-25 | 中兴通讯股份有限公司 | Antenna selecting method for multi-user MIMO pre-coding and apparatus thereof |
| JP2010251936A (en) * | 2009-04-14 | 2010-11-04 | Lenovo Singapore Pte Ltd | Radio terminal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060084461A1 (en) * | 2004-10-18 | 2006-04-20 | Masahiro Sekiya | Wireless communication apparatus and wireless communication system |
| CN101305525A (en) * | 2006-03-30 | 2008-11-12 | 三菱电机研究实验室 | Antenna/beam selection training in MIMO wireless LANS with different sounding frames |
| CN101394257A (en) * | 2007-09-18 | 2009-03-25 | 中兴通讯股份有限公司 | Antenna selecting method for multi-user MIMO pre-coding and apparatus thereof |
| JP2010251936A (en) * | 2009-04-14 | 2010-11-04 | Lenovo Singapore Pte Ltd | Radio terminal device |
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| WO2014106343A1 (en) | 2014-07-10 |
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