CN109756982A - A kind of method, apparatus and computer storage medium for distributing frequency spectrum resource - Google Patents
A kind of method, apparatus and computer storage medium for distributing frequency spectrum resource Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of method, apparatus and computer storage medium for distributing frequency spectrum resource；This method may include: the communication link being randomly assigned the subband width in system bandwidth to each item by cell base station to user equipment；According to each subband, the wide state that is randomly assigned determines the corresponding initial control parameter of each subband width；For wide the distributed communication link of each subband, detected according to the system index of setting；Meet the reassignment strategy of setting corresponding to testing result, wide the distributed communication link of the corresponding target sub-band of the testing result is reassigned, and the wide initial control parameter of the target sub-band is revised, until the corresponding revised control parameter of all subband width meets the decision condition of setting.
Description
Technical field
The present invention relates to fields of communication technology more particularly to a kind of method, apparatus for distributing frequency spectrum resource and computer to deposit
Storage media.
Background technique
With the tremendous growth of communication system high speed transmission and data traffic, following cordless communication network will be with more next
More intensive mode is disposed, while frequency spectrum resource is more nervous, and this seriously inhibits the further development of mobile communication.Currently,
Spectral band in microwave range is almost otherwise fully engaged, and especially with frequency peak period, data transmit more congestion.
The appearance of 5th third-generation mobile communication technology is that wireless communication brings new development.Wherein, millimeter wave (mmWave)
Undoubtedly a key technology because the technology can avoid crowded microwave range frequency spectrum, and has achievable direction
The characteristics of property high-gain, low latency and extensive frequency spectrum can be used.
Although millimeter wave possesses above-mentioned advantage in a communication network, due to shorter with wavelength, bandwidth is larger for its own
Characteristic, so as to cause the limited coverage area of millimetre-wave attenuator, and to interference and obstruction it is more sensitive.Therefore, such as fruiting period
It hopes and more effectively utilizes millimetre-wave attenuator, just have to propose efficient resource allocation policy, to improve a millimeter wave network conscientiously
Spectrum efficiency and reliability.
For the assignment problem of millimeter wave network intermediate frequency spectrum resource, part conventional scheme proposes one kind in dynamic super-intensive
The Resource Allocation Formula of low computing cost and low subband switching rate is presented in heterogeneous network.But the program does not consider millimeter
Interference management and elimination in wave network, it will be understood that: interference, which is undoubtedly, present in network leads to overall network performance
The main factor of decline.In addition, proposing a kind of joint there are also part conventional scheme considers resource allocation and interference management
New departure, to reduce the influence of various interference in millimeter wave network.However, the program has lot of complexity.
Summary of the invention
In view of this, an embodiment of the present invention is intended to provide a kind of method, apparatus for distributing frequency spectrum resource and computer storages
Medium；It is able to ascend the transmission performance of millimeter wave network, and reduces the implementation complexity of resource allocation.
The technical scheme of the present invention is realized as follows:
In a first aspect, the embodiment of the invention provides a kind of methods for distributing frequency spectrum resource, which comprises
Subband width in system bandwidth is randomly assigned the communication link to each item by cell base station to user equipment；
According to each subband, the wide state that is randomly assigned determines the corresponding initial control parameter of each subband width；
For wide the distributed communication link of each subband, detected according to the system index of setting；
The reassignment strategy for meeting setting corresponding to testing result divides the corresponding target sub-band of the testing result is wide
The communication link matched is reassigned, and revises the wide initial control parameter of the target sub-band, until the wide correspondence of all subbands
Revised control parameter meet setting decision condition.
Second aspect, the embodiment of the invention provides a kind of device for distributing frequency spectrum resource, described device includes: initial point
With part, determines part, detection part and reassign part；Wherein,
The original allocation part is configured to for the subband width in system bandwidth being randomly assigned to each item by cell base station extremely
The communication link of user equipment；
The determining part is configured to determine the corresponding initial control of each subband width according to the wide state that is randomly assigned of each subband
Parameter processed；
The detection part is configured to for wide the distributed communication link of each subband, according to the system index of setting
It is detected；And the reassignment part is triggered according to testing result；
The reassignment part is configured to meet the reassignment strategy of setting corresponding to testing result, the detection is tied
Wide the distributed communication link of the corresponding target sub-band of fruit is reassigned, and revises the wide initial control ginseng of the target sub-band
Number, until the corresponding revised control parameter of all subband width meets the decision condition of setting.
The third aspect, the embodiment of the invention provides a kind of devices for distributing frequency spectrum resource, and described device includes: that communication connects
Mouthful, memory and processor；Wherein,
The communication interface, during for being received and sent messages between other ext nal network elements, the reception of signal and
It sends；
The memory, for storing the computer program that can be run on the processor；
The first processor, for when running the computer program, executing distribution frequency spectrum money described in first aspect
The method and step in source.
Fourth aspect, the embodiment of the invention provides a kind of computer storage medium, the computer storage medium storage
There is the program of distribution frequency spectrum resource, the program of the distribution frequency spectrum resource realizes first aspect when being executed by least one processor
The method and step of the distribution frequency spectrum resource.
The embodiment of the invention provides a kind of method, apparatus and computer storage medium for distributing frequency spectrum resource；For being
The communication link of the wide corresponding distribution of each subband is detected in regiment commander's width, and based on setting system index it is wide to each subband with
Machine distribution state is reassigned, until control parameter corresponding with each sub- bandwidth allocation state meets decision condition, thus sharp
It is suitably matched with subband is wide with communication link, significantly promotes network throughput.It is able to ascend the transmission of millimeter wave network
Performance, and reduce the implementation complexity of resource allocation.
Detailed description of the invention
Fig. 1 is a kind of wireless communication system architecture schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow schematic diagram for distributing frequency spectrum resource provided in an embodiment of the present invention；
Fig. 3 is a kind of method implementation process schematic diagram for distributing frequency spectrum resource provided in an embodiment of the present invention；
Fig. 4 is a kind of simulation result comparison schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another simulation result comparison schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of device composition schematic diagram for distributing frequency spectrum resource provided in an embodiment of the present invention；
Fig. 7 is a kind of device hardware structural diagram for distributing frequency spectrum resource provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Referring to Fig. 1, it illustrates a kind of example of wireless communication system and access net 100 provided in an embodiment of the present invention,
Wireless communication system (also referred to as wireless wide area network (WWAN)) includes base station 105, UE 115 and core net EPC 130.Base station
105 may include macrocell (high power cellular base station) and/or small cell (low-power cellular base station).Macrocell includes base
It stands.Small cell includes Femto cell, picocell and Microcell.
(collectively known as evolved Universal Mobile Telecommunications System (UMTS) land radio access web (E- of base station 105
UTRAN it)) is docked by backhaul link 132 (for example, S1 interface) with EPC 130.Among other functions, base station 105 may be used also
To execute one or more functions in following functions: transfer, wireless channel encryption and the decryption of user data, integrality guarantor
Shield, header-compressed, mobility control function (for example, switching, dual link), Inter-Cell Interference Coordination, connection are established and are discharged, is negative
Load balance, the distribution of Non-Access Stratum (NAS) message, the selection of NAS node, synchronous, wireless access network (RAN) is shared, multi-media broadcast
Broadcast passing for multicast service (MBMS), user and equipment tracking, RAN information management (RIM), paging, positioning and alert message
It send.Base station 105 can by backhaul link 134 (for example, X2 interface) come with directly or indirectly to one another (for example, passing through
EPC130 it) is communicated.Backhaul link 134 can be wired or wireless.
Base station 105 can wirelessly be communicated with UE 115.Each base station 105 in base station 105 can be corresponding
Geographical coverage area 110 provides communication overlay.There may be the geographical coverage areas 110 of overlapping.For example, small cell 105 ' can
To have the overlay area 110 ' Chong Die with the overlay area 110 of one or more macro base stations 105.Including small cell and macro small
The network in both areas can be referred to as heterogeneous network.Heterogeneous network can also include Home evolved Node B (eNB) (HeNB),
It can provide service to the group that is restricted of referred to as closed user group (CSG).Communication between base station 105 and UE 115
Link 125 may include uplink (UL) (also referred to as reverse link) transmission from UE 115 to base station 105 and/or from base
The downlink (DL) (also referred to as forward link) that 105 arrive UE 115 of standing transmits.It is more that multi input can be used in communication link 125
Export (MIMO) antenna technology, including space division multiplexing, beam forming and/or transmitting diversity.Communication link can be by one
Or multiple carrier waves.Base station 105/UE 115 can each carrier wave using carrier wave polymerize in distribute up to YMHz (for example, 5,
10,15,20,100MHz) bandwidth frequency spectrum, to realize up to Yx MHz (the x component in total for transmission in each direction
Carrier wave).Carrier wave can be adjacent to each other or can be not adjacent to each other.
G node B (gNB) 105 can be operated in millimeter wave (mmW) frequency and/or nearly mmW frequency, with UE 115 into
Row communication.When gNB 105 is operated in mmW or nearly mmW frequency, gNB 105 can be referred to as the base station mmW.Extremely high frequency (EHF)
It is a part of the RF in electromagnetic spectrum.Range of the EHF with 30GHz to 300GHz and have between 1 millimeter and 10 millimeters
Wavelength.Wireless wave in the frequency band can be referred to as millimeter wave.Nearly mmW can extend down into the frequency of 3GHz, have 100
The wavelength of millimeter.Hyperfrequency (SHF) frequency band extends between 3GHz and 30GHz, also referred to as centimeter wave.Use the nearly mmW of mmW/
The communication of radio frequency band has high path loss and short range.The base station mmW 105 can be utilized beamforming to UE 115
Compensate high path loss and short range.
In embodiments of the present invention, base station is also referred to as gNB, node B, evolved node B (eNB), access point, base
Stand transceiver, wireless base station, transceiver, transceiver function unit, basic service set (BSS), extended service set (ESS) or
Some other term appropriate.Base station 105 is that UE 115 provides the access point of EPC130.The example of UE 115 includes honeycomb electricity
Words, smart phone, Session initiation Protocol (SIP) phone, laptop computer, personal digital assistant (PDA), satelline radio,
Global positioning system, multimedia equipment, video equipment, digital audio-frequency player (for example, MP3 player), camera, game control
Platform, tablet computer, smart machine, wearable device, vehicle, meter electronics, air pump, bread baker or any other tool processed
There is the equipment of similar functions.Some UE 115 in UE 115 can be referred to as Internet of Things (IoT, Internet of Things)
Equipment (for example, parking meter, air pump, bread baker, vehicle etc.).UE 104 is also referred to as station, movement station, user
It stands, mobile unit, subscriber unit, radio-cell, remote unit, mobile device, wireless device, wireless telecom equipment, remotely set
Standby, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client
End, client or some other term appropriate.
Based on communication system architecture shown in FIG. 1, network ultra dense for millimeter wave, in application method level, matching theory
Due to having the advantages that high efficiency and low complex degree, various wireless communication fields are widely used in, especially tradition
Resource allocation in hyperfrequency network.
It mainly include three basic forms of it, i.e., one-to-one algorithm, many-one algorithm and one-to-many calculation for matching algorithm
Method.Specifically, one-to-one algorithm can only solve the problems, such as single mapping, such as the select permeability of " transmission-reception " node.And
On the problem of dynamic spectrum resource management, since frequency spectrum distribution is related to Multiple factors, it is therefore preferable that using Multiple factors can be matched
Many-one matching algorithm.Further, since there are the external environment of mutual interference between link, the embodiment of the present invention is paid the utmost attention to using being related to
The many-one matching algorithm of external environment is to solve the complicated resource assignment problem for being related to interference mitigation.
Based on this, referring to fig. 2, it illustrates a kind of method for distributing frequency spectrum resource provided in an embodiment of the present invention, the party
Method can be applied in framework shown in Fig. 1 the network element device that resource allocation is carried out for user equipment (UE), such as base station etc., this method
May include:
S201: the subband width in system bandwidth is randomly assigned the communication chain to each item by cell base station to user equipment
Road；
S202: according to each subband, the wide state that is randomly assigned determines the corresponding initial control parameter of each subband width；
S203: it for wide the distributed communication link of each subband, is detected according to the system index of setting；
S204: meet the reassignment strategy of setting corresponding to testing result, by the corresponding target sub-band of the testing result
The communication link that width is distributed is reassigned, and revises the wide initial control parameter of the target sub-band, until all subbands
The corresponding revised control parameter of width meets the decision condition of setting.
For technical solution shown in Fig. 2, carried out for the communication link of the wide corresponding distribution of subband each in system bandwidth
Detection, and reassigned based on setting system index the be randomly assigned state wide to each subband, until with each sub- bandwidth allocation
The corresponding control parameter of state meets decision condition, to suitably be matched using subband is wide with communication link, significantly mentions
Rise network throughput.
It is in one possible implementation, described to divide at random according to each subband is wide for technical solution shown in Fig. 2
The corresponding initial control parameter of each subband width is determined with state, comprising:
According to each subband, the wide state that is randomly assigned generates distribution state matrix A；Wherein, in the distribution state matrix A
ElementFor characterizing the communication link i of m-th cell base station i to j-th user equipment km→kjWhether it is assigned
N-th of subband wide fn, 1≤m≤M, 1≤j≤J, 1≤n≤N；
It corresponds toIndicate the communication link i of m-th cell base station i to j-th user equipment km→kjQuilt
It is assigned with the wide f of n-th of subbandn；It corresponds toIndicate the communication of m-th cell base station i to j-th user equipment k
Link im→kjIt is not previously allocated the wide f of n-th of subbandn；
Based on the distribution state matrix A, obtained according to the following formula for characterizing the corresponding initial control parameter of each subband width
Initial control matrix C:
C=1-A
Wherein, 1 all 1's matrix with A same size is indicated.
Based on above-mentioned initial control matrix C, it is preferable that it is described to be directed to wide the distributed communication link of each subband, according to
The system index of setting is detected, comprising:
In the initial control matrix C, following detection is carried out for the corresponding element of each subband width:
Corresponding to the wide f of n-th of subbandnThere are 1 elements for corresponding element, detect the wide f of n-th of subbandnDistributed
One communication link i → k；
As the wide f of n-th of subbandnThroughput of system is greater than n-th of son when distribution is to the second communication link i → k '
Bandwidth fnIt distributes to the throughput of system of first communication link i → k, it is determined that testing result meets the reassignment strategy of setting；
As the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described second
Throughput of system when communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i → k ' and
The pth sub- bandwidth fpThroughput of system when distributing to the first communication link i → k, it is determined that testing result meets
The reassignment strategy of setting.
It is in the specific implementation process, wide to all subbands to detect one by one for above-mentioned preferable example, and when discovery
In initial control matrix C, certain subband is wide, such as the wide f of n-th of subbandnThere are 1 elements, then f wide to the subbandnAssigned is logical
Letter link is detected, if testing result meets the either case in above-mentioned two situations, it is determined that testing result satisfaction is set
Fixed reassignment strategy, at this time can f wide to the subbandnIt is reassigned.
Based on this, it is preferable that the reassignment strategy for meeting setting corresponding to testing result, by the testing result pair
Wide the distributed communication link of the target sub-band answered is reassigned, and revises the wide initial control parameter of the target sub-band,
Include:
Corresponding to the wide f of n-th of subbandnThroughput of system is greater than described n-th when distribution is to the second communication link i → k '
A sub- bandwidth fnIt distributes to the situation of the throughput of system of first communication link i → k, by the wide f of n-th of subbandnIt distributes to institute
The second communication link i → k ' is stated, and releases the wide f of n-th of subbandnWith the distribution between the first communication link i → k
Relationship, and by the element in the initial control matrixWithEqual zero setting, and by the initial control matrix
In, the wide f of n-th of subbandnThat is distributed goes out the first communication link i → k and the second communication link i → k ' in addition
The corresponding element of other communication links set 1；
Corresponding to the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described
Throughput of system when the second communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i →
K ' and the pth sub- bandwidth fpThe situation of throughput of system when distributing to the first communication link i → k, described in releasing
The wide f of n-th of subbandnWith the relations of distribution of the first communication link i → k and by the wide f of n-th of subbandnIt is assigned to described
Two communication link i → k ', and release the pth sub- bandwidth fpSimultaneously with the relations of distribution of the second communication link i → k '
By the pth sub- bandwidth fpIt is assigned to the first communication link i → k, and by the element in the initial control matrix Equal zero setting, and by the initial control matrix, n-th of subband is wide
fnWith the pth sub- bandwidth fpDistributed in addition to the first communication link i → k and the second communication link i → k '
The corresponding element of other communication links set 1.
For above-mentioned preferable example, in the specific implementation process, according to above-mentioned two situations:
Set the wide f of subbandnIt is assigned to first communication link i → k, if by the wide f of subbandnIt is assigned to the second communication link i → k '
It can in contrast realize higher throughput of system, then execute this operation, and release the wide f of subbandnWith the first communication link i →
The relations of distribution between k, even in distribution state matrixAndThe correspondence of Matrix C will be controlled simultaneously
PositionWith0 is set, indicates that link i → k and i → k ' have reached resources configuration optimization effect, does not consider further that later
Movement is swapped to it.Due to working in the wide f of same subbandnUnder remove first communication link i → k and the second communication link i
Interference of other communication links of → k ' due to will receive this both links, so in control Matrix C, the wide f of subbandnUnder other
The corresponding element of communication link sets 1；
Set the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described second and leads to
Letter link i → k ' is released if the communication link that the two is distributed, which swaps, can be realized as higher throughput of system
The wide f of n-th of subbandnWith the relations of distribution of the first communication link i → k and by the wide f of n-th of subbandnIt is assigned to institute
The second communication link i → k ' is stated, and releases the pth sub- bandwidth fpDistribution with the second communication link i → k ' is closed
It is and by the pth sub- bandwidth fpIt is assigned to the first communication link i → k, even in distribution state matrix Meanwhile by it is described control Matrix C in element0 is set, indicates that communication link i → k and i → k' have reached resource optimization point
With effect, does not consider further that swap movement to it later.Due to working in the wide f of same sub-bandnWith the wide f of subbandpUnder remove first
Other communication links of communication link i → k and the second communication link i → k ' in addition will receive the interference of this both links, so
It controls in Matrix C, the wide f of subbandnWith the wide f of subbandpUnder the corresponding element of other communication links set 1；
For above-mentioned preferable example, it should be noted that not only to sub- bandwidth and communication link according to throughput of system into
Capable reassignment, and when reassigning, interfering with each other between communication link is considered, thus during subband wide reassignment
Solve the problems, such as transmission interference,
It is described until the corresponding revised control parameter of all subband width meets sentencing for setting for above-mentioned preferable example
Fixed condition, comprising:
In control matrix after the modification, detected for the corresponding element of each subband width:
1 element if it exists then detects wide the distributed communication link of the corresponding subband of 1 element；
The reassignment strategy for meeting setting corresponding to testing result is wide distributed logical by the corresponding subband of 1 element
Letter link is reassigned, and is directed to the modified control matrix, modifies the wide control ginseng of the corresponding subband of 1 element
Number, until all elements are zero in entire control matrix.
Specifically, it in control matrix after the modification, is detected for the corresponding element of each subband width, if discovery
1 element is still had in the corresponding control Matrix C of the wide f of certain subband, then continues to execute above-mentioned reassignment process；If entirely controlling square
Battle array C all elements are 0, then it is optimal to illustrate that the communication link distribution of whole system bandwidth has reached, reassigns process and stops.
For above-mentioned technical proposal, the embodiment of the present invention is described in detail by the implementation example under concrete scene.
Set scene is a ultra dense multicell network of millimeter wave, comprising a macro base station and intensive point multiple in the network
The cell of cloth, wherein each cell is corresponding with a micro-base station and multiple users.It, first will by macro base station when information is transmitted
Information reaches the micro-base station of each cell, is then passed the information on again by micro-base station to each user.
In above-mentioned scene, the micro-base station set in cell uses i respectively1,i2,...,iMIt indicates, the user in each cell
Use k1,k2,...,kJIt indicates, then for i cell, downlink transfer link is i → k1,i→k2..., subband to be allocated
Width is f1,f2,...,fN.The wide match condition between transmission link of subband, such as the element in matrix A are indicated with matrix AIts communication link i for characterizing m-th cell base station i to j-th user equipment km→kjWhether it is assigned n-th
The wide f of subbandnIfIndicate the communication link i of m-th cell base station i to j-th user equipment km→kjIt is assigned
N-th of subband wide fn；It corresponds toIndicate the communication link of m-th cell base station i to j-th user equipment k
im→kjIt is not previously allocated the wide f of n-th of subbandn.Control Matrix C is introduced simultaneously, for indicating that subband is wide between transmission link
Whether distribution can occur the element in switching motion, such as Matrix CIt is indicated m-th cell base station i to j-th
The communication link i of user equipment km→kjWith the wide f of n-th of subbandnBetween distribution state whether can change, for example, ifThen show communication link im→kjWith the wide f of n-th of subbandnBetween distribution state can not change, ifThen show communication link im→kjWith the wide f of n-th of subbandnBetween distribution state can change.
Based on above-mentioned scene and parameter setting, specific implementation process of the technical solution shown in Fig. 2 in the above setting is such as
Shown in Fig. 3:
S1: by the wide f of subband to be allocated1,f2,...,fNIt is randomly assigned to each transmission link of each cell, is divided
With state matrix A；
S2: control Matrix C is initialized as C=1-A；
S3: in control matrix, the corresponding element of all subband width is detected: when there are 1 elements in control matrix
When, then it goes to S4: the corresponding cell of 1 element being detected according to system index, and executes S5 or S6；When in control matrix
When being 0 element, S8 is gone to.
It should be noted that the testing result is tactful for the moment when meeting following two reassignment, it is corresponding to 1 element
The wide f of subband is reassigned, and specific reassignment strategy is as follows:
S5: if the wide f of subband, which is distributed to second communication link i → k', f wider than subband can distribute to the first communication link i of original
→ k realizes higher throughput of system, then the wide f of subband is distributed to second communication link i → k', and releases the wide f of subband and former the
Matching relationship between one communication link i → k, even A in distribution state matrixi→k,f=0 and Ai→k′,f=1；It simultaneously will control
Corresponding position C in Matrix Ci→k,fAnd Ci→k′,fZero setting indicates that link i → k and i → k ' have reached resources configuration optimization effect
Fruit does not consider further that swap movement to it later.And work communication link in other cells under the wide f of same subband by
In the interference that will receive this both links of link i → k and i → k ', so by the communication link in control Matrix C in other cells
Corresponding element sets 1, and indicating the corresponding communication link in these positions can also be considered that matching movement may occur；
S6: the wide f of subband is respectively allocated to first communication link i → k and second communication link i → k' with the wide f ' of subband, if
The corresponding communication link distributed of the wide f of the subband and wide f ' of subband, which is swapped, can be realized higher throughput of system, then solves
Except the wide f of subband and first communication link i → k of original the relations of distribution and the wide f of subband is assigned to the second communication link i → k ', solution
Except the wide f ' of subband and original the second communication link i → k ' the relations of distribution and the wide f ' of subband is assigned to first communication link i → k,
Even distributing A in state matrixi→k,f=0, Ai→k′,f=1, Ai→k′,f′=0, Ai→k,f′=1；Pair in Matrix C will be controlled simultaneously
Answer position Ci→k,f、Ci→k′,f、Ci→k,f′、Ci→k′,f′Zero setting indicates that link i → k and i → k ' have reached resources configuration optimization effect
Fruit does not consider further that swap movement to it later.And it works in other cells under the wide f of same subband and the wide f ' of subband
Interference of the communication link due to will receive this both links of link i → k and i → k ', so will control in Matrix C in other cells
The corresponding element of communication link set 1, indicate the corresponding communication link in these positions also and can be considered that matching movement may occur.
S7: continue to detect other corresponding elements of subband width in control matrix, if finding, other subbands are wide still
It corresponds to there are 1 element, then returns to S4；If device S8: process terminates it was found that all elements are all zero in control matrix.
It is emulated for above-mentioned scene and specific implementation process shown in Fig. 3, simulated conditions are as follows: setting millimeter wave is ultra dense
In subzone network, including 1 macro base station and 7 cells, each center of housing estate are designed with a micro-base station, each micro-base station service
All users of cell where it.The wide total quantity of subband is 6, and line-of-sight transmission loss is 3, and non line of sight transmission loss is 2, when
Gap length is 1ms, and the maximum power that sends of macro base station is 30dBm, and noise power is -174dBm/Hz.Under above-mentioned simulated conditions
Carry out following emulation.
Emulation content one
In the case that distance is different in minizone, the embodiment of the present invention is respectively adopted to the ultra dense subzone network of millimeter wave and is mentioned
The method of distribution frequency spectrum resource out and other conventional spectral resource allocation methods carry out emulation comparison, and comparison result is referring to fig. 4.
In Fig. 4, ordinate is " system and rate ", indicates total rate of whole network；Abscissa is " minizone distance coefficient "；"*"
Type broken line indicates that the simulation result of the method for the distribution frequency spectrum resource that the embodiment of the present invention is proposed, triangle broken line indicate greedy
The simulation result of allocation algorithm, pattern broken line indicate the simulation result for being randomly assigned algorithm.
By Fig. 4 simulation result it is found that being divided in the case where minizone distance is different using what the embodiment of the present invention was proposed
The system and rate of method with frequency spectrum resource subzone network ultra dense for millimeter wave are apparently higher than to be provided using other conventional spectrals
The system and rate of source distribution method；It can be confirmed that the method for the distribution frequency spectrum resource that the embodiment of the present invention is proposed is not
It is all suitable under same minizone distance, and effect is substantially better than other conventional spectral resource allocation methods.
Emulation content two
In different community in the case where number of users, the embodiment of the present invention is respectively adopted to the ultra dense subzone network of millimeter wave
The method of the distribution frequency spectrum resource proposed and other conventional spectral resource allocation methods carry out emulation comparison, comparison result referring to
Fig. 5.In Fig. 5, ordinate is " system and rate ", indicates total rate of whole network；Abscissa is " intra-cell users quantity "；
" * " type chain-dotted line indicates the simulation result of the method for the distribution frequency spectrum resource that the embodiment of the present invention is proposed, triangle point scribing line
Indicate that the simulation result of greedy allocation algorithm, pattern chain-dotted line indicate the simulation result for being randomly assigned algorithm.
By Fig. 5 simulation result it is found that being proposed in the case where intra-cell users quantity is different using the embodiment of the present invention
Distribution frequency spectrum resource method subzone network ultra dense for millimeter wave system and rate be apparently higher than using other conventional frequencies
The system and rate of spectrum resource distribution method；It can be confirmed that the method for the distribution frequency spectrum resource that the embodiment of the present invention is proposed
It is all suitable under different intra-cell users quantity, and effect is substantially better than conventional spectral resource allocation methods.
Based on the identical inventive concept of previous embodiment, referring to Fig. 6, it illustrates a kind of point provided in an embodiment of the present invention
Device 60 with frequency spectrum resource, described device 60 include: original allocation part 601, determine part 602, detection part 603 and again
Distribution portion 604；Wherein,
The original allocation part 601 is configured to for the subband width in system bandwidth being randomly assigned to each item by cell base
It stands to the communication link of user equipment；
The determining part 602 is configured to determine that each subband width is corresponding just according to the wide state that is randomly assigned of each subband
Beginning control parameter；
The detection part 603 is configured to refer to for wide the distributed communication link of each subband according to the system of setting
Mark is detected；And the reassignment part 604 is triggered according to testing result；
The reassignment part 604 is configured to meet the reassignment strategy of setting corresponding to testing result, by the detection
As a result wide the distributed communication link of corresponding target sub-band is reassigned, and revises the wide initial control of the target sub-band
Parameter, until the corresponding revised control parameter of all subband width meets the decision condition of setting.
In the above scheme, the determining part 602, is configured that
According to each subband, the wide state that is randomly assigned generates distribution state matrix A；Wherein, in the distribution state matrix A
ElementFor characterizing the communication link i of m-th cell base station i to j-th user equipment km→kjWhether it is assigned
N-th of subband wide fn, 1≤m≤M, 1≤j≤J, 1≤n≤N；
It corresponds toIndicate the communication link i of m-th cell base station i to j-th user equipment km→kjQuilt
It is assigned with the wide f of n-th of subbandn；It corresponds toIndicate the communication of m-th cell base station i to j-th user equipment k
Link im→kjIt is not previously allocated the wide f of n-th of subbandn；
Based on the distribution state matrix A, obtained according to the following formula for characterizing the corresponding initial control parameter of each subband width
Initial control matrix C:
C=1-A
Wherein, 1 all 1's matrix with A same size is indicated.
In the above scheme, the detection part 603, is configured that
In the initial control matrix C, following detection is carried out for the corresponding element of each subband width:
Corresponding to the wide f of n-th of subbandnThere are 1 elements for corresponding element, detect the wide f of n-th of subbandnDistributed
One communication link i → k；
As the wide f of n-th of subbandnThroughput of system is greater than n-th of son when distribution is to the second communication link i → k '
Bandwidth fnIt distributes to the throughput of system of first communication link i → k, it is determined that testing result meets the reassignment strategy of setting；
As the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described second
Throughput of system when communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i → k ' and
The pth sub- bandwidth fpThroughput of system when distributing to the first communication link i → k, it is determined that testing result meets
The reassignment strategy of setting；
Correspondingly, the reassignment part 604, is configured that
Corresponding to the wide f of n-th of subbandnThroughput of system is greater than described n-th when distribution is to the second communication link i → k '
A sub- bandwidth fnIt distributes to the situation of the throughput of system of first communication link i → k, by the wide f of n-th of subbandnIt distributes to institute
The second communication link i → k ' is stated, and releases the wide f of n-th of subbandnWith the distribution between the first communication link i → k
Relationship, and by the element in the initial control matrixWithEqual zero setting, and by the initial control matrix
In, the wide f of n-th of subbandnThat is distributed goes out the first communication link i → k and the second communication link i → k ' in addition
The corresponding element of other communication links set 1；
Corresponding to the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described
Throughput of system when the second communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i →
K ' and the pth sub- bandwidth fpThe situation of throughput of system when distributing to the first communication link i → k, described in releasing
The wide f of n-th of subbandnWith the relations of distribution of the first communication link i → k and by the wide f of n-th of subbandnIt is assigned to described
Two communication link i → k ', and release the pth sub- bandwidth fpSimultaneously with the relations of distribution of the second communication link i → k '
By the pth sub- bandwidth fpIt is assigned to the first communication link i → k, and by the element in the initial control matrix Equal zero setting, and by the initial control matrix, n-th of subband is wide
fnWith the pth sub- bandwidth fpDistributed in addition to the first communication link i → k and the second communication link i → k '
The corresponding element of other communication links set 1.
In the above scheme, the reassignment part 604, is configured that
In control matrix after the modification, detected for the corresponding element of each subband width:
1 element if it exists then detects wide the distributed communication link of the corresponding subband of 1 element；
The reassignment strategy for meeting setting corresponding to testing result is wide distributed logical by the corresponding subband of 1 element
Letter link is reassigned, and is directed to the modified control matrix, modifies the wide control ginseng of the corresponding subband of 1 element
Number, until all elements are zero in entire control matrix.
It is to be appreciated that in the present embodiment, " part " can be partial circuit, segment processor, subprogram or soft
Part etc., naturally it is also possible to be unit, can also be that module is also possible to non-modularization.
In addition, each component part in the present embodiment can integrate in one processing unit, it is also possible to each list
Member physically exists alone, and can also be integrated in one unit with two or more units.Above-mentioned integrated unit both can be with
Using formal implementation of hardware, can also be realized in the form of software function module.
If the integrated unit realizes that being not intended as independent product is sold in the form of software function module
Or in use, can store in a computer readable storage medium, based on this understanding, the technical side of the present embodiment
Substantially all or part of the part that contributes to existing technology or the technical solution can be produced case in other words with software
The form of product embodies, which is stored in a storage medium, including some instructions are used so that one
Platform computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute sheet
The all or part of the steps of embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk
Etc. the various media that can store program code.
Therefore, a kind of computer storage medium is present embodiments provided, the computer storage medium is stored with distribution frequency
The program of the program of spectrum resource, the distribution frequency spectrum resource realizes institute in above-mentioned technical proposal when being executed by least one processor
The step of stating the method for distribution frequency spectrum resource.
Device 60 and computer storage medium based on above-mentioned distribution frequency spectrum resource, referring to Fig. 7, it illustrates of the invention real
Apply a kind of specific hardware structure of the device 60 of distribution frequency spectrum resource of example offer, comprising: communication interface 701,702 He of memory
Processor 703；Various components are coupled by bus system 704.It is understood that bus system 704 is for realizing these groups
Connection communication between part.Bus system 704 further includes power bus, control bus and state in addition to including data/address bus
Signal bus.But for the sake of clear explanation, various buses are all designated as bus system 704 in Fig. 7.Wherein,
The communication interface 701, during for being received and sent messages between other ext nal network elements, the reception of signal
And transmission；
The memory 702, for storing the computer program that can be run on the processor 703；
The first processor 703, for executing following steps when running the computer program:
Subband width in system bandwidth is randomly assigned the communication link to each item by cell base station to user equipment；
According to each subband, the wide state that is randomly assigned determines the corresponding initial control parameter of each subband width；
For wide the distributed communication link of each subband, detected according to the system index of setting；
The reassignment strategy for meeting setting corresponding to testing result divides the corresponding target sub-band of the testing result is wide
The communication link matched is reassigned, and revises the wide initial control parameter of the target sub-band, until the wide correspondence of all subbands
Revised control parameter meet setting decision condition.
It is appreciated that the memory 702 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct
Rambus RAM, DRRAM).The memory 702 of system and method described herein is intended to include but is not limited to these and arbitrarily its
It is suitble to the memory of type.
And processor 703 may be a kind of IC chip, the processing capacity with signal.During realization, on
Each step for stating method can be completed by the integrated logic circuit of the hardware in processor 703 or the instruction of software form.
Above-mentioned processor 703 can be general processor, digital signal processor (Digital Signal Processor, DSP),
Specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array
(Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor are patrolled
Collect device, discrete hardware components.It may be implemented or execute disclosed each method, step and the logical box in the embodiment of the present invention
Figure.General processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with the present invention
The step of method disclosed in embodiment, can be embodied directly in hardware decoding processor and execute completion, or use decoding processor
In hardware and software module combination execute completion.Software module can be located at random access memory, and flash memory, read-only memory can
In the storage medium of this fields such as program read-only memory or electrically erasable programmable memory, register maturation.The storage
Medium is located at memory 702, and processor 703 reads the information in memory 702, and the step of the above method is completed in conjunction with its hardware
Suddenly.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein
The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or
It is realized outside processor.
Specifically, it when processor 703 is additionally configured to run the computer program, executes described in preceding solution
The method and step for distributing frequency spectrum resource, is not discussed here.
It should be understood that between technical solution documented by the embodiment of the present invention, in the absence of conflict, Ke Yiren
Meaning combination.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of method for distributing frequency spectrum resource, which is characterized in that the described method includes:
Subband width in system bandwidth is randomly assigned the communication link to each item by cell base station to user equipment；
According to each subband, the wide state that is randomly assigned determines the corresponding initial control parameter of each subband width；
For wide the distributed communication link of each subband, detected according to the system index of setting；
Meet the reassignment strategy of setting corresponding to testing result, the corresponding target sub-band of the testing result is wide distributed
Communication link is reassigned, and revises the wide initial control parameter of the target sub-band, is repaired until all subband width are corresponding
Control parameter after ordering meets the decision condition of setting.
2. the method according to claim 1, wherein the be randomly assigned state wide according to each subband determines respectively
The corresponding initial control parameter of subband width, comprising:
According to each subband, the wide state that is randomly assigned generates distribution state matrix A；Wherein, the member in the distribution state matrix A
ElementFor characterizing the communication link i of m-th cell base station i to j-th user equipment km→kjWhether n-th is assigned
A sub- bandwidth fn, 1≤m≤M, 1≤j≤J, 1≤n≤N；
It corresponds toIndicate the communication link i of m-th cell base station i to j-th user equipment km→kjIt is assigned
N-th of subband wide fn；It corresponds toIndicate the communication link of m-th cell base station i to j-th user equipment k
im→kjIt is not previously allocated the wide f of n-th of subbandn；
Based on the distribution state matrix A, obtained according to the following formula for characterizing the first of the corresponding initial control parameter of each subband width
Begin control Matrix C:
C=1-A
Wherein, 1 all 1's matrix with A same size is indicated.
3. according to the method described in claim 2, it is characterized in that, it is described be directed to wide the distributed communication link of each subband,
It is detected according to the system index of setting, comprising:
In the initial control matrix C, following detection is carried out for the corresponding element of each subband width:
Corresponding to the wide f of n-th of subbandnThere are 1 elements for corresponding element, detect the wide f of n-th of subbandnFirst distributed is logical
Believe link i → k；
As the wide f of n-th of subbandnIt is wide to be greater than n-th of subband for throughput of system when distribution is to the second communication link i → k '
fnIt distributes to the throughput of system of first communication link i → k, it is determined that testing result meets the reassignment strategy of setting；
As the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to second communication
Throughput of system when link i → k ' is less than the wide f of n-th of subbandnDistribution is to the second communication link i → k ' and described
Pth sub- bandwidth fpThroughput of system when distributing to the first communication link i → k, it is determined that testing result meets setting
Reassignment strategy.
4. according to the method described in claim 3, it is characterized in that, the reassignment plan for meeting setting corresponding to testing result
Slightly, wide the distributed communication link of the corresponding target sub-band of the testing result is reassigned, and revises target
The initial control parameter of bandwidth, comprising:
Corresponding to the wide f of n-th of subbandnThroughput of system is greater than n-th of son when distribution is to the second communication link i → k '
Bandwidth fnIt distributes to the situation of the throughput of system of first communication link i → k, by the wide f of n-th of subbandnDistribution is to described the
Two communication link i → k ', and release the wide f of n-th of subbandnDistribution between the first communication link i → k is closed
System, and by the element in the initial control matrixWithEqual zero setting, and by the initial control matrix
In, the wide f of n-th of subbandnThat is distributed goes out the first communication link i → k and the second communication link i → k ' in addition
The corresponding element of other communication links set 1；
Corresponding to the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described second
Throughput of system when communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i → k ' and
The pth sub- bandwidth fpThe situation of throughput of system when distributing to the first communication link i → k releases described n-th
The wide f of subbandnWith the relations of distribution of the first communication link i → k and by the wide f of n-th of subbandnIt is logical to be assigned to described second
Believe link i → k ', and releases the pth sub- bandwidth fpWith the relations of distribution of the second communication link i → k ' and by institute
State pth sub- bandwidth fpIt is assigned to the first communication link i → k, and by the element in the initial control matrix Equal zero setting, and by the initial control matrix, n-th of subband is wide
fnWith the pth sub- bandwidth fpDistributed in addition to the first communication link i → k and the second communication link i → k '
The corresponding element of other communication links set 1.
5. according to the method described in claim 4, it is characterized in that, described until the corresponding revised control of all subband width
Parameter meets the decision condition of setting, comprising:
In control matrix after the modification, detected for the corresponding element of each subband width:
1 element if it exists then detects wide the distributed communication link of the corresponding subband of 1 element；
The reassignment strategy for meeting setting corresponding to testing result, by wide the distributed communication chain of the corresponding subband of 1 element
Road is reassigned, and is directed to the modified control matrix, modifies the wide control parameter of the corresponding subband of 1 element,
Until all elements are zero in entire control matrix.
6. a kind of device for distributing frequency spectrum resource, which is characterized in that described device includes: original allocation part, determines part, inspection
It surveys part and reassigns part；Wherein,
The original allocation part is configured to for the subband width in system bandwidth being randomly assigned to each item by cell base station to user
The communication link of equipment；
The determining part is configured to determine the corresponding initial control ginseng of each subband width according to the wide state that is randomly assigned of each subband
Number；
The detection part is configured to carry out for wide the distributed communication link of each subband according to the system index of setting
Detection；And the reassignment part is triggered according to testing result；
The reassignment part is configured to meet the reassignment strategy of setting corresponding to testing result, by the testing result pair
Wide the distributed communication link of the target sub-band answered is reassigned, and revises the wide initial control parameter of the target sub-band,
Until the corresponding revised control parameter of all subband width meets the decision condition of setting.
7. device according to claim 6, which is characterized in that the determining part is configured that
According to each subband, the wide state that is randomly assigned generates distribution state matrix A；Wherein, the member in the distribution state matrix A
ElementFor characterizing the communication link i of m-th cell base station i to j-th user equipment km→kjWhether n-th is assigned
A sub- bandwidth fn, 1≤m≤M, 1≤j≤J, 1≤n≤N；
It corresponds toIndicate the communication link i of m-th cell base station i to j-th user equipment km→kjIt is assigned
N-th of subband wide fn；It corresponds toIndicate the communication link of m-th cell base station i to j-th user equipment k
im→kjIt is not previously allocated the wide f of n-th of subbandn；
Based on the distribution state matrix A, obtained according to the following formula for characterizing the first of the corresponding initial control parameter of each subband width
Begin control Matrix C:
C=1-A
Wherein, 1 all 1's matrix with A same size is indicated.
8. device according to claim 6, which is characterized in that the detection part is configured that
In the initial control matrix C, following detection is carried out for the corresponding element of each subband width:
Corresponding to the wide f of n-th of subbandnThere are 1 elements for corresponding element, detect the wide f of n-th of subbandnFirst distributed is logical
Believe link i → k；
As the wide f of n-th of subbandnIt is wide to be greater than n-th of subband for throughput of system when distribution is to the second communication link i → k '
fnIt distributes to the throughput of system of first communication link i → k, it is determined that testing result meets the reassignment strategy of setting；
As the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to second communication
Throughput of system when link i → k ' is less than the wide f of n-th of subbandnDistribution is to the second communication link i → k ' and described
Pth sub- bandwidth fpThroughput of system when distributing to the first communication link i → k, it is determined that testing result meets setting
Reassignment strategy；
Correspondingly, the reassignment part, is configured that
Corresponding to the wide f of n-th of subbandnThroughput of system is greater than n-th of son when distribution is to the second communication link i → k '
Bandwidth fnIt distributes to the situation of the throughput of system of first communication link i → k, by the wide f of n-th of subbandnDistribution is to described the
Two communication link i → k ', and release the wide f of n-th of subbandnDistribution between the first communication link i → k is closed
System, and by the element in the initial control matrixWithEqual zero setting, and by the initial control matrix
In, the wide f of n-th of subbandnThat is distributed goes out the first communication link i → k and the second communication link i → k ' in addition
The corresponding element of other communication links set 1；
Corresponding to the wide f of n-th of subbandnIt distributes to first communication link i → k and pth sub- bandwidth fpIt distributes to described second
Throughput of system when communication link i → k ' is less than the wide f of n-th of subbandnDistribution to the second communication link i → k ' and
The pth sub- bandwidth fpThe situation of throughput of system when distributing to the first communication link i → k releases described n-th
The wide f of subbandnWith the relations of distribution of the first communication link i → k and by the wide f of n-th of subbandnIt is logical to be assigned to described second
Believe link i → k ', and releases the pth sub- bandwidth fpWith the relations of distribution of the second communication link i → k ' and by institute
State pth sub- bandwidth fpIt is assigned to the first communication link i → k, and by the element in the initial control matrix Equal zero setting, and by the initial control matrix, n-th of subband is wide
fnWith the pth sub- bandwidth fpDistributed in addition to the first communication link i → k and the second communication link i → k '
The corresponding element of other communication links set 1.
9. a kind of device for distributing frequency spectrum resource, which is characterized in that described device includes: communication interface, memory and processor；
Wherein,
The communication interface, during for being received and sent messages between other ext nal network elements, signal is sended and received；
The memory, for storing the computer program that can be run on the processor；
The first processor, for when running the computer program, perform claim to require any one of 1 to 5 distribution
The method and step of frequency spectrum resource.
10. a kind of computer storage medium, which is characterized in that the computer storage medium is stored with the journey of distribution frequency spectrum resource
The program of sequence, the distribution frequency spectrum resource is realized when being executed by least one processor divides described in any one of claims 1 to 5
Method and step with frequency spectrum resource.
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