CN102480734A - Method and device for allocating time-frequency resources - Google Patents
Method and device for allocating time-frequency resourcesDownload PDFInfo
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- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
- H—ELECTRICITY
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Abstract
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus that distributes running time-frequency resource.
Background technology
Carry out in the data transmission system of scheduling controlling in the employing base station; The scheduling of all resources of system distributes to be undertaken by the base station usually; For example, institute's employable resource situation etc. when uplink is carried out at resource allocation conditions when downlink transfer is carried out in the base station and terminal, these are all distributed by base station scheduling.
At OFDM (Orthogonal Frequency Division Multiplexing; OFDM) in the system, in the same sub-district, when base station and different terminals carry out downlink data transmission; Because these down links are orthogonal, therefore can avoid disturbing in the sub-district.Yet the down link between the different districts possibly not be a quadrature, so each terminal all possibly receive the descending interference from the base station of other neighbor cell, i.e. presence of intercell interference.
If presence of intercell interference is serious, then can reduce power system capacity, the transmittability at cell edge terminal particularly, and then influence the covering power of system and the performance at terminal.In order to overcome presence of intercell interference and to guarantee certain bandwidth availability ratio, can adopt FFR (Fractional Frequency Reuse, partial frequency multiplexing) technology, different sub band resources is distributed to edge termination, to reduce presence of intercell interference intensity.
The cardinal principle of traditional F FR is: at first, available running time-frequency resource is divided into N (N is the integer greater than zero), and (Frequency Partition FP), supposes N=4 to individual frequency partition (or frequency resource block), available running time-frequency resource is divided into [FP that is:1, FP2, FP3, FP4].Wherein, FP2, FP3, FP4Time-frequency reuse factor value be 3 (they are Reuse1/3, are also referred to as Reuse3), FP2, FP3, FP4In a time distribute to a sub-district in three neighbor cells, and this running time-frequency resource can not be used in other two sub-districts, perhaps need adopt the method for the subcarrier transmitting power that limits this running time-frequency resource to use this running time-frequency resource; FP1Time-frequency reuse factor value is 1 (being Reuse 1), and three neighbor cells of above-mentioned this can use this running time-frequency resource.Then; The terminal use is divided into two types; Ring terminal (nearer or terminal that signal to noise ratio is higher) and outer shroud user promptly (apart from the far perhaps lower terminal of signal to noise ratio, base station) apart from the base station; Time FP1 or all time of ringterminal distribution Reuse 1 in letting, outer shroud terminal are then only to distribute FP2, FP3, FP4In one.
In the algorithm that exists at present, FP be divided into the time-frequency reuse factor be 1 with the time-frequency reuse factor be two parts of N-1, the value of N is generally 4 and 8.When N=4, can guarantee the time quadrature that three adjacent Cell Edge User distribute; When N=8, can guarantee the time quadrature of the terminal distribution that is in cell edge of seven adjacent sub-districts.That is to say that the value of N is big more, the interference of minizone is just more little, otherwise the value of N is more little, and the interference of minizone is just big more.Yet along with the increase of N value, because the running time-frequency resource of 1/N is only used at the outer shroud terminal, utilizable running time-frequency resource is also few more.
In sum, the running time-frequency resource utilance in order to suppress the interference of minizone, is a cost to sacrifice the running time-frequency resource utilance by the decision of N value.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus that distributes running time-frequency resource; FR improves to traditional F; Guaranteeing further to restrain the interference of minizone under the identical situation of running time-frequency resource utilance, particularly can improve the performance at the terminal that is positioned at cell edge.
A kind of method of distributing running time-frequency resource that the present invention's enforcement provides comprises:
According to the multiplexing factor values of a heavy time-frequency whole running time-frequency resource is divided into a plurality of time;
According to the multiplexing factor values of double time-frequency a plurality of time being carried out two-fold divides;
According to terminal type, be the time after the division of terminal distribution two-fold.
A kind of device that distributes running time-frequency resource that the present invention's enforcement provides comprises:
One heavily divides module, is used for according to the multiplexing factor values of a heavy time-frequency whole running time-frequency resource being divided into a plurality of time;
Two-fold is divided module, is used for according to the multiplexing factor values of double time-frequency a plurality of time being carried out two-fold and divides;
Distribution module is used for based on terminal type, is the time after the division of terminal distribution two-fold.
Divide because the running time-frequency resource among the traditional F FR is carried out two-fold, distribute through the time after double the division, guaranteeing further to suppress the interference of minizone on the running time-frequency resource utilance certain basis according to terminal type.
Description of drawings
Figure 1A distributes the method sketch map of running time-frequency resource for the embodiment of the invention;
Figure 1B is embodiment of the invention N1=3, N2=7 o'clock, two-fold was divided the sketch map of running time-frequency resource on frequency domain;
Fig. 1 C is embodiment of the invention N1=3, N2=7 o'clock, two-fold was divided the sketch map of running time-frequency resource on time domain;
Fig. 2 divides the method sketch map of terminal type for the embodiment of the invention;
Fig. 3 A is embodiment of the invention N1=3 o'clock resource mapping sketch map;
Fig. 3 B is embodiment of the invention N2=7 o'clock, FP2Resource mapping sketch map after the division;
Fig. 4 is that embodiment of the invention information decision value adopts SINR to distribute the method sketch map of running time-frequency resource;
Fig. 5 distributes the device sketch map of running time-frequency resource for the embodiment of the invention.
Embodiment
The embodiment of the invention is on traditional F FR basis; Time is further divided; And user terminal reclassified; Cooperate rational resource distribution mode, under the prerequisite that guarantees certain running time-frequency resource utilance, can further reduce presence of intercell interference, improve the total capacity of system and the performance at the terminal that raising is positioned at cell edge.
The present invention is applicable to ascending communication system and downlink communication system.
Describe in detail below in conjunction with the scheme of Figure of description the embodiment of the invention.
Referring to Figure 1A, the embodiment of the invention is distributed the method for running time-frequency resource, comprising:
In thestep 101, from whole running time-frequency resource, mark off the multiplexing factor of time-frequency and be 1 first time, remaining running time-frequency resource is divided into N1Individual second time, wherein N1Equal the multiplexing factor values of a heavy time-frequency, the multiplexing factor values of the time-frequency of second time is N1That is to say that this step is divided into N with whole running time-frequency resource1+ 1 time (FP).Wherein use FPN1+1The multiplexing factor of expression time-frequency is 1 first time, uses FPiRepresent i second time, i is the primary importance parameter.The span of i is 1 to N1
Distinguishingly, under limiting case, the first running time-frequency resource block size is 0, does not promptly mark off the multiplexing factor of time-frequency and be 1 first time.
In thestep 102, each second time is divided into N2Individual the 3rd time, wherein N2Equal the multiplexing factor values of double time-frequency, the multiplexing factor values of the time-frequency of the 3rd time is N2
Concrete, with i the second time FPiBe divided into N2Individual the 3rd time wherein, is used FPIjRepresent j the 3rd time in i second time, j is a second place parameter.The span of i is 1 to N1, the span of j is 1 to N2
Distinguishingly, work as N2, be traditional FFR division methods at=1 o'clock.
Wherein, each second time is divided into N2Individual the 3rd time comprises:
Each second time is divided into N on frequency domain2Individual the 3rd time (specifically referring to Figure 1B, among the figure with N1=3, N2=7 is example); Or
Each second time is divided into N on time domain2Individual the 3rd time (specifically referring to Fig. 1 C, among the figure with N1=3, N2=7 is example); Or
Each second time is divided into N on time domain and frequency domain2Individual the 3rd time.
Also comprise betweenstep 102 and the step 103:
According to cell number (Cell_ID), confirm the 3rd time that the cell number corresponding district is used.Specifically comprise:
According to cell number, confirm primary importance parameter i and second place parameter .j;
According to primary importance parameter i, confirm the second time FP that use the sub-districti
According to second place parameter j, confirm the second time FPiIn the 3rd time FPIj
Because the value of i and j is confirmed, so FPI and FPIjAll be determined value, rather than a value range.
The method of confirming i and j includes but not limited to following method:
i＝mod(Cell_ID，N1)+1；j＝mod(Cell_ID，N2)+1。
In thestep 103, terminal type is divided three classes: interior ring terminal, the first outer shroud terminal and the second outer shroud terminal.The concrete method introduction of method in following Fig. 2 of dividing terminal type.
For the time after the division of terminal distribution two-fold comprises:
Be the 3rd definite time FP of the second outer shroud terminal distribution in the sub-districtIj
Be the 3rd definite time FP of the first outer shroud terminal distribution in the sub-districtIjThe second affiliated running time-frequency resource FPiRemove the 3rd time FP in the pieceIjOutside time;
Be the interior ring terminal distribution first time FP in the sub-districtN1+1
Preferably, in order to make resource rational utilization, when first time can not satisfy the demand at the interior ring terminal in the sub-district, can also be time idle in the whole running time-frequency resource of interior ring terminal distribution in the sub-district; When the time of distributing to the first outer shroud terminal can not satisfy the demand at the first outer shroud terminal in the sub-district, be idle running time-frequency resource in the 3rd definite time of the first outer shroud terminal distribution in the sub-district.
Through adopting above-mentioned method of allocating resources; Under the prerequisite that guarantees certain running time-frequency resource utilance, can further reduce presence of intercell interference; Owing to give the specific time of the second outer shroud terminal distribution, therefore can improve the performance at the second outer shroud terminal, sub-district, improve overall system capacity.
Further, the embodiment of the invention also comprises:
According to the position at interior ring terminal interior ring terminal is divided in the first kind in ring terminal and second type and encircles the terminal.Concrete; Angle based on interior ring terminal and antenna in cell main lobe direction is positive and negative; To be that positive interior ring terminal is divided into and encircles the terminal in the first kind with the angle of antenna in cell main lobe direction, with the angle of antenna in cell main lobe direction be that the interior ring terminal born is divided in second type and encircles the terminal.
With the multiplexing factor values of time-frequency is that 1 first time is divided into some the 4th time.
Based on the position at interior ring terminal, be interior ring terminal distribution the 4th time.
Concrete, can set priority for ring terminal in ring terminal in the first kind and second type, be ring terminal distribution the 4th time in ring terminal and second type in the first kind according to priority orders.Perhaps dispose in the first kind ring terminal in order order distribute the 4th time, the 4th time is distributed according to the backward order in the ring terminal in second type.This mode can further suppress to disturb under the situation of undercapacity.
Referring to Fig. 2, the embodiment of the invention is divided the method for terminal type, comprising:
Wherein, CI characterizes the distance parameter D that the user arrives the base station, and the size of D is inversely proportional to distance.Also can be the parameter S that characterizes terminal use's receiving and transmitting signal quality, S be can be at least a in following several kinds:
RSSI (Received Signal Strength Indication receives the signal strength signal intensity indication information),
SINR (Signal to Interference plus Noise Ratio, signal and interference-to-noise ratio),
SIR (Signal to Interference Ratio, signal and interference ratio)
Specifically can specify in advance and adopt D or S as CI.
Wherein, the first judgment threshold A1 and the second judgment threshold A2 can confirm in advance that the type of the CI that obtains in thestep 201 must be corresponding with A1 and A2, and in general, CI is corresponding A1 and A2 of D, is that corresponding A1 of S and A2 are inequality with CI.
Confirm that according to comparative result the terminal type in the sub-district comprises:
As CI during, confirm that the terminal is the second outer shroud terminal less than A2;
When CI is not less than A2 and during less than A1, confirms that the terminal is the first outer shroud terminal;
When CI is not less than A1, confirm that the terminal is interior ring terminal.
In the embodiment of the invention, parameter N1, N2, A1, A1 and FPN1+1In one or multinomial can and being configured in the base station by agreement regulation; Also can confirm by the base station; Can also confirm the back informing base station by the upper strata network element of base station.The upper strata network element can be here: trunking, base station controller, access service network, connection service network and core net gateway etc., and behind definite A1 and A2, specifying CI is D or S.
Further; Because there is randomness in the position that accesses terminal; And can move along with the time; Therefore the channel condition at terminal is also in continuous variation, and therefore along with change of time, the number at the interior ring terminal in the sub-district, the first outer shroud terminal and the second outer shroud terminal is changing.For the reasonable distribution running time-frequency resource, the value of A1 and A2 can also be adjusted, such as the value of base station according to cell load adjustment A1 and A2.
The trigger condition of adjustment threshold value includes but not limited to following mode:
Mode one, by the timer timing, arrive the regular hour cycle T.This value can be stipulated by agreement also can be by base station configuration.
Mode two, adjust by the upper unit informing base station.
The adjustment criterion of A1 and A2 can satisfy following any one or multiple:
One, compared with a last time cycle, if throughput of system obviously descends, the reduction value reaches certain threshold value, and then the ratio of the relative terminal use's number of the first outer shroud terminal number is added up in the base station, if this value obviously increases, then can reduce the size of A1.
Two, monitor adjacent M when upper unit1(M1Value equal the multiplexing factor N of a heavy time-frequency1Value) individual sub-district IOT (Interference over Thermal, interference-to-noise ratio) when obviously increasing, then increases the size of A1 value, otherwise reduces the value of A1.
Three, monitor adjacent M (M when upper floor unit1＜M＜M2, wherein, M2Value equal the multiplexing factor N of double time-frequency2Value) when the IOT of individual sub-district obviously increases, then increase the A2 value, otherwise reduce the A2 value.
After A1 and A2 adjustment, judge the type at the terminal of inserting the sub-district according to up-to-date A1 and A2.
Referring to Fig. 3 A, with N1=3 is the resource mapping sketch map of example, wherein, with left oblique line time represent the second time FP of different i value correspondencesi, with left oblique line time represent the first time FPN1+1
If with i=mod (Cell_ID, N1)+1 is an example, calculates Cell_ID and be the second time FP that use 1 sub-districti, can obtain i=2, promptly Cell_ID is that second time that use 1 sub-district is FP2
Again with the above-mentioned FP that obtains2,N2=7 is example, and the running time-frequency resource mapping graph that obtains is shown in Fig. 3 B, and wherein, the Resource Block of band horizontal line is represented the 3rd time FP that different j values is corresponding2j
If with j=mod (Cell_ID, N2)+1 is an example, calculates Cell_ID and be the 3rd time FP that use 1 sub-districtIj, can obtain j=2, so Cell_ID is that the 3rd time that use 1 sub-district is FP22
With concrete embodiment, explain that the embodiment of the invention is the method for terminal distribution running time-frequency resource below.
Referring to Fig. 4, embodiment of the invention information decision value adopts SINR to distribute the method for running time-frequency resource, comprising:
Operable first time in sub-district, second time and the 3rd time are confirmed instep 401, base station.
Concrete, the base station is according to the multiplexing factor values N of time-frequency of configuration1, N2With multiplexing factor values be 1 the first running time-frequency resource FPN1+1Size, confirm the first time FPN1+1The position, and, confirm primary importance parameter i and second place parameter j according to cell number Cell_ID, further confirm the second running time-frequency resource FP that can supply this sub-district to useiSize and position, and confirm the 3rd time FPIjSize and position.
Perhaps, the base station is according to the FP of configurationN1+1Size, lumped parameter table [FP1, FP2..., FPN1, FPN1+1] and lumped parameter table [FI1, FPI2..., FPI N2], confirm the first time FPN1+1The position, and, confirm primary importance parameter i and second place parameter j according to cell number Cell_ID, further confirm the second running time-frequency resource FP that can supply this sub-district to useiSize and position, and confirm the 3rd time FPIjSize and position.
The SINR value of self is measured atstep 402, terminal, reports the base station.
Need to prove that execution instep 402 in the downlink communication system, if in ascending communication system, execution instep 402 not then is by the SINR value of the direct measuring terminals in base station.
The type of holding thethreshold value A 1 and the second judgment threshold A2 to judge the terminal is declared according to first instep 403, base station.
The base station compares SINR value and A1, A2 value, confirms the type at terminal according to comparative result.
Concrete, during less than A2, confirm that the terminal is the second outer shroud terminal in the SINR value;
Be not less than A2 and during less than A1, confirm that the terminal is the first outer shroud terminal in the SINR value;
When the SINR value is not less than A1, confirm that the terminal is interior ring terminal.
In this step, if the terminal is the second outer shroud terminal, the base station is excellent to be the 3rd time that the second outer shroud terminal distribution is confirmed.
If the terminal is the first outer shroud terminal; The base station is preferably the time of removing the 3rd definite time in second time under the 3rd definite time of the first outer shroud terminal distribution; If when distributing to the time at the first outer shroud terminal and can not satisfy the demand at the first outer shroud terminal in the sub-district, be idle running time-frequency resource in the 3rd time confirmed of the first outer shroud terminal distribution in the sub-district.
If the terminal is interior ring terminal; Ring terminal distribution first time in the base station is preferably; When if first time can not satisfy the demand at the interior ring terminal in the sub-district, be other idle running time-frequency resources in the whole running time-frequency resource of interior ring terminal distribution in the sub-district.
Traditional F FR carries out one to running time-frequency resource and heavily divides; The embodiment of the invention is to carrying out two-fold division through each time of heavily dividing; Based on similar principle; The present invention can also carry out triple divisions to the running time-frequency resource of dividing through two-fold, and according to this thinking, and the time after N (N for greater than 2 integer) is heavily divided is carried out N+1 and heavily divided.Wherein, the N multiplexing factor of time-frequency of heavily dividing is Nn(n is the integer greater than 0), NnValue can be pre-configured.Such as configuration N3=7, the running time-frequency resource FP that when triple the division carried out in expression each process two-fold is dividedIjBe divided into 7 time.
Correspondingly, traditional F FR does not classify to the outer shroud terminal, and the embodiment of the invention is divided into two types with the outer shroud terminal: first kind outer shroud terminal and second type of outer shroud terminal to after heavily each time of division is carried out the two-fold division through one.Based on similar principle, time is being carried out the outer shroud terminal is divided into the N class after N heavily divides: first kind outer shroud terminal, second type of outer shroud terminal ..., N class outer shroud terminal.
Particularly; If desired the outer shroud terminal is divided into the N class, and regards interior ring terminal as one type, then total N+1 Terminal Type; Need N judgment threshold of configuration: the first judgment threshold A1, the second judgment threshold A2 ..., N judgment threshold A N, each judgment threshold can be pre-configured.Divide the method for terminal type specifically can not give unnecessary details at this referring to according to first judgment threshold and second judgment threshold terminal being divided into the interior method of encircling terminal, first kind outer shroud terminal and second type of outer shroud terminal according to all judgment thresholds (first judgment threshold to the N judgment threshold).
N heavily divides when time-frequency resource process, and after the outer shroud terminal was divided into the N class, the principle of the time after dividing being distributed to N class outer shroud terminal was:
The time of heavily dividing for N class outer shroud terminal distribution N;
Belong to the time that N-1 heavily divides for N-1 class outer shroud terminal distribution but do not belong to the time that N heavily divides;
Still distributing the multiplexing factor of time-frequency for interior ring terminal is 1 Resource Block.
Specify with a concrete example below:
Such as: need to pass through the time FP after two-fold is dividedIjCarry out triple divisions again, the 5th time FP after obtaining dividingIjk, the multiplexing factor N of triple time-frequencies3=7, cell number Cell_ID is 1,
Front embodiment tries to achieve i=2, and j=2 is with k=mod (Cell_ID, N2)+1 is an example, calculates k=2, and therefore, Cell_ID is that 1 operable triple time are FP222
The mode of dividing the terminal comprises:
According to the first judgment threshold A1, the second judgment threshold A2 and with the 3rd judgment threshold A3 with the terminal be divided in the ring terminal, first kind outer shroud terminal, second type of outer shroud terminal and the 3rd type of outer shroud terminal.
Concrete:
As CI during, confirm that the terminal is the 3rd outer shroud terminal less than A3;
When CI is not less than A3 and during less than A2, confirms that the terminal is the second outer shroud terminal;
When CI is not less than A2 and during less than A1, confirms that the terminal is the first outer shroud terminal;
When CI is not less than A1, confirm that the terminal is interior ring terminal.
The terminal distribution time that for Cell_ID is 1 sub-district comprises:
With FP222Distribute to the 3rd outer shroud terminal;
With FP22In remove FP222Time distribute to the second outer shroud terminal;
With FP2In remove FP22Time distribute to the first outer shroud terminal;
With the first time FPN1+1Ring terminal in distributing to.
Based on the inventive concept identical with the method for above-mentioned distribution running time-frequency resource, the embodiment of the invention also provides a kind of device that distributes running time-frequency resource, because the enforcement of device is similar with the enforcement of method, repeats part, repeats no more.
Referring to Fig. 5, the embodiment of the invention is distributed the device of running time-frequency resource, comprising: one heavily dividesmodule 501,two-fold division module 502 anddistribution module 503.
One heavily dividesmodule 501, is used for according to the multiplexing factor values N of a heavy time-frequency1Whole running time-frequency resource is divided into a plurality of time.
Concrete, one heavily dividesmodule 501, and from whole running time-frequency resource, to mark off the multiplexing factor of time-frequency be 1 first time, and remaining running time-frequency resource is divided into N1Individual second time, wherein N1Equal the multiplexing factor values of a heavy time-frequency.
Two-fold is dividedmodule 502, is used for according to the multiplexing factor values N of double time-frequency2A plurality of time are carried out two-fold divides.
Concrete, two-fold is dividedmodule 502 each second time is divided into N2Individual the 3rd time, wherein N2Equal the multiplexing factor values of double time-frequency.
Each second time is divided into N2Individual the 3rd time comprises:
Each second time is divided into N on frequency domain2Individual the 3rd time; Or
Each second time is divided into N on time domain2Individual the 3rd time.
Further, this device also comprises:terminal sort module 504.
As decision value CI during, confirm that the terminal is the second outer shroud terminal less than the second judgment threshold A2;
When decision value CI is not less than the second judgment threshold A2 and during less than the first judgment threshold A1, confirms that the terminal is the first outer shroud terminal;
When decision value CI is not less than the first judgment threshold A1, confirm that the terminal is interior ring terminal.
This device can also comprise:determination module 505.
Concrete,determination module 505 is confirmed primary importance parameter and second place parameter according to cell number; Confirm second time according to the primary importance parameter; According to second place parameter, confirm the 3rd time in second time.
Be the time except that the 3rd time in second time under the 3rd definite time of the first outer shroud terminal distribution in the sub-district;
Be interior ring terminal distribution first time in the sub-district.
Further, when first time can not satisfy the demand at the interior ring terminal in the sub-district,distribution module 503 was a running time-frequency resource idle in the whole running time-frequency resource of interior ring terminal distribution in the sub-district; When the time of distributing to the first outer shroud terminal can not satisfy the demand at the interior ring terminal in the sub-district,distribution module 503 was an idle running time-frequency resource in the 3rd definite time of the interior ring terminal distribution in the sub-district.
For the reasonable distribution resource, this device also comprises: thresholdvalue adjusting module 506.
Thresholdvalue adjusting module 506 is used for adjusting the first judgment threshold A1 and the second judgment threshold A2 according to cell load.
Preferable, for the area interference at ring terminal in further suppressing,terminal sort module 504 also is used for based on the position at interior ring terminal interior ring terminal being divided in the first kind in ring terminal and second type encircles the terminal.Concrete; Angle based on interior ring terminal and antenna in cell main lobe direction is positive and negative; To be that positive interior ring terminal is divided into and encircles the terminal in the first kind with the angle of antenna in cell main lobe direction, with the angle of antenna in cell main lobe direction be that the interior ring terminal born is divided in second type and encircles the terminal.
Accordingly, to divide thatmodule 502 also is used for the multiplexing factor of time-frequency be that 1 first time is divided into a plurality of the 4th time to two-fold.
Accordingly,distribution module 503 also is used for the position based on interior ring terminal, is interior ring terminal distribution the 4th time.
Concrete,distribution module 503 can be set priority for ring terminal in ring terminal in the first kind and second type, is ring terminal distribution the 4th time in ring terminal and second type in the first kind according to priority orders.Perhaps, the 4th time is distributed at the interior ring ofdistribution module 503 configuration first kind terminal order in order, and the 4th time is distributed according to the backward order in the ring terminal in the first kind.This mode can further suppress to disturb under the situation of undercapacity.
Further, this device also comprises:
N heavily dividesmodule 507, is used for according to the multiplexing factor values N of the heavy time-frequency of NnTo pass through each time that N-1 heavily divides carries out N and heavily divides.
Correspondingly,distribution module 503 is used for according to terminal type, for terminal distribution is passed through the time after N heavily divides.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1. a method of distributing running time-frequency resource is characterized in that, this method comprises:
According to the multiplexing factor values of a heavy time-frequency whole running time-frequency resource is divided into a plurality of time;
According to the multiplexing factor values of double time-frequency a plurality of time being carried out two-fold divides;
According to terminal type, be the time after the division of terminal distribution two-fold.
2. the method for claim 1 is characterized in that, saidly according to the multiplexing factor values of a heavy time-frequency whole running time-frequency resource is divided into a plurality of time and comprises:
From whole running time-frequency resource, mark off the multiplexing factor of time-frequency and be 1 first time, remaining running time-frequency resource is divided into N1Individual second time, wherein N1Equal the multiplexing factor values of a heavy time-frequency;
Saidly according to the multiplexing factor of double time-frequency a plurality of time are carried out two-fold and divide and to comprise:
Each second time is divided into N2Individual the 3rd time, wherein N2Equal the multiplexing factor values of double time-frequency.
3. method as claimed in claim 2 is characterized in that, said each second time is divided into N2Individual the 3rd time comprises:
Each second time is divided into N on frequency domain2Individual the 3rd time; Or
Each second time is divided into N on time domain2Individual the 3rd time; Or
Each second time is being divided into N on the time domain He on the frequency domain jointly2Individual the 3rd time.
4. like claim 2 or 3 described methods, it is characterized in that, said carrying out after the two-fold division, for also comprising before the time after the division of terminal distribution two-fold:
Confirm the 3rd time that the cell number corresponding district is used;
Said definite the 3rd time comprises:
According to cell number, confirm primary importance parameter and second place parameter;
Confirm second time according to the primary importance parameter;
According to second place parameter, confirm the 3rd time in second time.
5. method as claimed in claim 2 is characterized in that, said terminal type is confirmed according to the following step:
Obtain the channel information decision value at terminal;
Decision value is compared with first judgment threshold and second judgment threshold respectively, confirm the terminal type in the sub-district according to comparative result.
6. method as claimed in claim 5 is characterized in that second judgment threshold is less than first judgment threshold;
Saidly confirm that according to comparative result the terminal type in the sub-district comprises:
When decision value during, confirm that the terminal is the second outer shroud terminal less than second judgment threshold;
When decision value is not less than second judgment threshold and during less than first judgment threshold, confirms that the terminal is the first outer shroud terminal;
When decision value is not less than first judgment threshold, confirm that the terminal is interior ring terminal.
7. method as claimed in claim 6 is characterized in that, saidly comprises for the terminal distribution two-fold time after dividing:
Be the 3rd definite time of the second outer shroud terminal distribution in the sub-district;
Be the time except that the 3rd time in second time under the 3rd definite time of the first outer shroud terminal distribution in the sub-district;
Be interior ring terminal distribution first time in the sub-district.
8. method as claimed in claim 7 is characterized in that, when said first time can not satisfy the demand at the interior ring terminal in the sub-district, is running time-frequency resource idle in the whole running time-frequency resource of interior ring terminal distribution in the sub-district;
When the time of distributing to the first outer shroud terminal can not satisfy the demand at the interior ring terminal in the sub-district, be idle running time-frequency resource in the 3rd definite time of the interior ring terminal distribution in the sub-district.
9. method as claimed in claim 6 is characterized in that, this method also comprises:
First time is divided into a plurality of the 4th time;
Based on the position at interior ring terminal, be interior ring terminal distribution the 4th time.
10. like the arbitrary described method of claim 5～9, it is characterized in that this method also comprises:
Adjust said first judgment threshold and said second judgment threshold according to cell load.
11. the method for claim 1 is characterized in that, this method also comprises:
According to the multiplexing factor of the heavy time-frequency of N, each time after will passing through N-1 and heavily dividing is carried out N and is heavily divided, and wherein N is the integer greater than 2;
Based on all judgment thresholds, the terminal is divided into interior ring terminal and N class outer shroud terminal;
The time of heavily dividing through N for interior ring terminal and N class outer shroud terminal distribution.
12. a device that distributes running time-frequency resource is characterized in that, this device comprises:
One heavily divides module, is used for according to the multiplexing factor values of a heavy time-frequency whole running time-frequency resource being divided into a plurality of time;
Two-fold is divided module, is used for according to the multiplexing factor values of double time-frequency a plurality of time being carried out two-fold and divides;
Distribution module is used for based on terminal type, is the time after the division of terminal distribution two-fold.
13. device as claimed in claim 12 is characterized in that, said one heavily divides module specifically is used for:
From whole running time-frequency resource, mark off the multiplexing factor of time-frequency and be 1 first time, remaining running time-frequency resource is divided into N1Individual second time, wherein N1Equal the multiplexing factor values of a heavy time-frequency;
Said two-fold is divided module and specifically is used for:
Each second time is divided into N2Individual the 3rd time, wherein N2Equal the multiplexing factor values of double time-frequency.
14. device as claimed in claim 13 is characterized in that, said two-fold is divided module and also is used for:
Each second time is divided into N on frequency domain2Individual the 3rd time; Or
Each second time is divided into N on time domain2Individual the 3rd time; Or
Each second time is being divided into N on the time domain He on the frequency domain jointly2Individual the 3rd time.
15., it is characterized in that this device also comprises like claim 13 or 14 described devices:
Determination module is used for dividing module in two-fold and carries out after two-fold divides, and distribution module is before the time after the terminal distribution two-fold is divided, and confirms the 3rd time of cell number corresponding district use;
Said determination module specifically is used for:
According to cell number, confirm primary importance parameter and second place parameter; Confirm second time according to the primary importance parameter; According to second place parameter, confirm the 3rd time in second time.
16. device as claimed in claim 13 is characterized in that, this device also comprises:
The terminal sort module is used to obtain the channel information decision value at terminal, and decision value is compared with first judgment threshold and second judgment threshold respectively, confirms the terminal type in the sub-district according to comparative result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010555754.5ACN102480734B (en) | 2010-11-22 | 2010-11-22 | Time-frequency resource distributing method and device |
| PCT/CN2011/075327WO2012068862A1 (en) | 2010-11-22 | 2011-06-03 | Method and apparatus for processing time-frequency resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010555754.5ACN102480734B (en) | 2010-11-22 | 2010-11-22 | Time-frequency resource distributing method and device |
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| CN102480734Atrue CN102480734A (en) | 2012-05-30 |
| CN102480734B CN102480734B (en) | 2014-04-30 |
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| CN201010555754.5AExpired - Fee RelatedCN102480734B (en) | 2010-11-22 | 2010-11-22 | Time-frequency resource distributing method and device |
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| Country | Link |
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| CN (1) | CN102480734B (en) |
| WO (1) | WO2012068862A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN102480734B (en) | 2014-04-30 |
| WO2012068862A1 (en) | 2012-05-31 |
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