CN105578595A - Carrier resource dynamic adjustment method and carrier resource dynamic adjustment device based on carrier aggregation - Google Patents
Carrier resource dynamic adjustment method and carrier resource dynamic adjustment device based on carrier aggregation Download PDFInfo
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Abstract
The invention provides a carrier resource dynamic adjustment method and a carrier resource dynamic adjustment device based on carrier aggregation. The method comprises the following steps: determining distribution and utilization information of all physical resource blocks PRB in a carrier; and adjusting the number of the PRBs in the carrier distributed to primary cell user equipment UE taking a current cell as a primary cell according to preset rules corresponding to the distribution and utilization information so as to enable at least one piece of secondary cell UE taking the current cell as a secondary cell to use the PRBs in the carrier not distributed to the primary cell UE after adjustment, wherein the preset rules include rules set according to a preset heavy load decision threshold LC_Threshold, the secondary cell UE is UE supporting carrier aggregation, and LC_Threshold belongs to [0, 1]. By using the method, the problem of resource distribution under carrier aggregation is solved, the number of times of carrier resource dynamic adjustment is reduced, packet loss of retransmission data is avoided, the frequency resources of UE taking the carrier as a primary cell are first guaranteed, and the performance of UE is ensured to the greatest extent while effective utilization of frequency resources is achieved.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of carrier resource dynamic adjusting method based on carrier aggregation and device.
Background technology
Long Term Evolution (LongTermEvolution, being called for short LTE) maximum transmission bandwidth of system support is 20MHz, in order to provide higher data rate to mobile subscriber, senior Long Term Evolution (LongTermEvolutionAdvance, being called for short LTE-A) system proposes carrier aggregation technology (CarrierAggregation, be called for short CA), its objective is the subscriber equipment (UserEquipment for having respective capabilities, be called for short UE) larger broadband is provided, improve the peak rate of subscriber equipment.The component carrier (ComponentCarriers is called for short CC) of two or more is aggregating and supports to be greater than 20MHz and the maximum transmission bandwidth being no more than 100MHz by carrier aggregation technology.The lte-a system adopting carrier aggregation technology is a kind of multicarrier system.
Component carrier CC represents a up-link carrier or a descending carrier, a up CC and descending CC is associated by certain corresponding relation and just constitutes a community (Cell), so carrier aggregation is also referred to as cell aggregation (CellAggregation).For the ease of carrying out the management of component carrier, component carrier is divided into principal component carrier wave (PrimaryCC is called for short PCC) and auxiliary component carrier (SecondaryCC is called for short SCC).The effect of descending principal component carrier wave PCC comprises: set up radio resource control (RadioResourceControl, being called for short RRC) signaling connects, Non-Access Stratum (Non-AccessStratum, be called for short NAS) mobility and the input etc. as security parameters; Up principal component carrier wave PCC is for sending the control information of physical layer.Descending PCC and up PCC is associated and constitutes main plot (PrimaryCell is called for short PCell), and descending SCC and optional up SCC is associated and constitutes auxiliary community (SecondaryCell is called for short SCell).
Pass through carrier aggregation technology, UE can carry out transfer of data on PCC, one or more SCC, therefore concerning the carrier wave (Ji Yige community) under a carrier aggregation mode, there are two class UE: one classes is the main plot UE that are main plot with this carrier wave, and a class take this carrier wave as the auxiliary community UE of auxiliary community.For the existing resource regulating method of this two class UE be: polling algorithm, maximum signal-to-noise ratio algorithm, Proportional-Fair algorithm etc., cannot arrange the priority of this two classes different UEs, differentiating and processing cannot be carried out to the Resourse Distribute of this two classes different UEs, also cannot meet the demand of the service quality needed for each UE.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of carrier resource dynamic adjusting method based on carrier aggregation and device, can solve under carrier aggregation mode in each carrier wave with carrier wave be main plot subscriber equipment and take carrier wave as the resource allocation problem of subscriber equipment of auxiliary community, and the dynamic conditioning number of times of carrier resource can be reduced, avoid the packet loss of data retransmission, preferential guarantee take carrier wave as the band resource of the subscriber equipment of main plot, is realizing the performance as far as possible ensureing subscriber equipment while band resource effectively utilizes.
First aspect, the invention provides a kind of carrier resource dynamic adjusting method based on carrier aggregation, comprising:
Determine that the distribution of all Physical Resource Block PRB in a carrier wave uses information;
The preset rules corresponding according to described distribution use information, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset;
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
Alternatively, the distribution of the described all Physical Resource Block PRB determined in a carrier wave uses information, comprising:
Determine that all PRB in a carrier wave are not used or used by main plot UE;
Or,
Determine that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE.
Alternatively, the described all PRB determined in a carrier wave are not used or are used by main plot UE, comprising:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, the described preset rules corresponding according to described distribution use information, adjusts this allocation of carriers and gives the quantity that current area is the PRB of the main plot UE of main plot, comprising:
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
Alternatively, the described all PRB determined in a carrier wave are all used by main plot UE and auxiliary community UE, comprising:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, the described preset rules corresponding according to described distribution use information, adjusts this allocation of carriers and gives the quantity that current area is the PRB of the main plot UE of main plot, comprising:
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
Second aspect, the invention provides a kind of carrier resource dynamic adjusting device based on carrier aggregation, comprising:
Determination module, for determining that the distribution of all Physical Resource Block PRB in a carrier wave uses information;
Adjusting module, for the preset rules corresponding according to described distribution use information, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset;
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
Alternatively, described determination module, specifically for
Determine that all PRB in a carrier wave are not used or used by main plot UE;
Or,
Determine that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE.
Alternatively, described determination module, specifically for determining that all PRB in a carrier wave are not used or used by main plot UE, comprising:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module, specifically for
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
Alternatively, described determination module, specifically for determining that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE, comprising:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module, specifically for
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
As shown from the above technical solution, carrier resource dynamic adjusting method based on carrier aggregation of the present invention and device, by determining that the distribution of all Physical Resource Block PRB in a carrier wave uses information, according to preset rules corresponding to use information distributing, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to main plot UE after adjusting in this carrier wave with the auxiliary community UE that current area is auxiliary community, preset rules comprises: the rule arranged according to the heavy duty decision threshold LC_Threshold preset, thus, can solve under carrier aggregation mode in each carrier wave with carrier wave be main plot subscriber equipment and take carrier wave as the resource allocation problem of subscriber equipment of auxiliary community, and the dynamic conditioning number of times of carrier resource can be reduced, avoid the packet loss of data retransmission, preferential guarantee take carrier wave as the band resource of the subscriber equipment of main plot, realizing the performance as far as possible ensureing subscriber equipment while band resource effectively utilizes.
Accompanying drawing explanation
Fig. 1 for prior art provide with the carrier wave CCn main plot UE that is main plot and take CCn as the resource distribution exemplary plot of auxiliary community UE of auxiliary community;
The schematic flow sheet of the carrier resource dynamic adjusting method based on carrier aggregation that Fig. 2 provides for one embodiment of the invention;
The structural representation of the carrier resource dynamic adjusting device based on carrier aggregation that Fig. 3 provides for one embodiment of the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Two class UE are not distinguished except scheduling on same carrier wave except continuing to use existing resource dispatching method in prior art, also disclose another method: from RRM (RadioResourceManagement, being called for short RRM) whole available band resource division of a carrier wave are two parts by angle, Fig. 1 show that prior art provides with the carrier wave CCn main plot UE that is main plot and take CCn as the resource distribution exemplary plot of auxiliary community UE of auxiliary community, as shown in Figure 1, the main plot UE that it is main plot with this carrier wave that a part is used for, the auxiliary community UE of another part for taking this carrier wave as auxiliary community, effectively can realize the difference process of two class users like this, ensure the performance of user.But the division how carrying out carrier frequency band resource is the problem needing to solve.
The method of prior art compares, the total load of each business of the main plot UE taking carrier wave as main plot and the total load being each business of the auxiliary community UE of auxiliary community with carrier wave according to the duty ratio value calculated to carry out the division of two parts band resource.
The shortcoming of the prior art method is: the change along with the duty ratio value of two class UE can trigger the adjustment of band resource continually, easily causes damage to data re-transmission, is difficult to the performance of the main plot UE that preferential guarantee is main plot with this carrier wave when heavier loads.
Realization of the present invention is for taking carrier wave as the user of main plot and taking carrier wave as the user of auxiliary community, be two parts by the whole frequency band division of carrier wave, a part distribute to carrier wave be main plot user use, another part divides that to be equipped with carrier wave be that the user of auxiliary community uses, described frequency band division can according in the load evaluation module in RRM with carrier wave be each business of user of main plot total load, be that the total load of each business of user of auxiliary community is for according to carrying out dynamic conditioning with carrier wave.
Fig. 2 shows the schematic flow sheet of the carrier resource dynamic adjusting method based on carrier aggregation that one embodiment of the invention provides, and as shown in Figure 2, the carrier resource dynamic adjusting method based on carrier aggregation of the present embodiment is as described below.
201, determine that the distribution of all Physical Resource Block PRB in a carrier wave uses information.
It should be noted that when community CC sets up, be defaulted as the main plot UE that only existence is main plot with this carrier cell in Long Term Evolution LTE system, so the initial value of α is 0.
202, corresponding according to described distribution use information preset rules, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset.
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
Will be understood that, the LC_Threshold of the present embodiment can pre-set according to emulation or actual measurement experience.
The carrier resource dynamic adjusting method based on carrier aggregation of the present embodiment, by determining that the distribution of all Physical Resource Block PRB in a carrier wave uses information, according to preset rules corresponding to use information distributing, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to main plot UE after adjusting in this carrier wave with the auxiliary community UE that current area is auxiliary community, preset rules comprises: the rule arranged according to the heavy duty decision threshold LC_Threshold preset, can solve under carrier aggregation mode in each carrier wave with carrier wave be main plot subscriber equipment and take carrier wave as the resource allocation problem of subscriber equipment of auxiliary community, and the dynamic conditioning number of times of carrier resource can be reduced, avoid the packet loss of data retransmission, preferential guarantee take carrier wave as the band resource of the subscriber equipment of main plot, realizing the performance as far as possible ensureing subscriber equipment while band resource effectively utilizes.。
In an embody rule, above-mentioned steps 201 can be specially: determine that all PRB in a carrier wave are not used or used by main plot UE, it can comprise:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, above-mentioned steps 202, can comprise:
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
In another embody rule, above-mentioned steps 201 can be specially: determine that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE, it can comprise:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, above-mentioned steps 202, can comprise:
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
For example, first preconfiguration parameters of the present embodiment and the second preconfiguration parameters can be the configuration parameter of Operation & Maintenance System OM respectively, they can pre-set according to emulation or actual measurement experience respectively, and Operation & Maintenance System OM is already present in the Long Term Evolution LTE system of prior art.
It should be noted that, in the present embodiment, before α value is adjusted, just can obtain supposing total load the Load ' _ CC_PCell of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after α value being adjusted according to the second formula.
Will be understood that, the Transmission Time Interval TTI=1ms in each dynamic conditioning cycle of the present embodiment.
Will be understood that, load evaluation module in the RRM of the present embodiment is already present in the Long Term Evolution LTE system of prior art, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell ∈ [0,1], and the frequency band of Load_CC_PCell and Load_CC_SCell change do not affect LC_Threshold.
The carrier resource dynamic adjusting method based on carrier aggregation of the present embodiment, can solve under carrier aggregation mode in each carrier wave with carrier wave be main plot subscriber equipment and take carrier wave as the resource allocation problem of subscriber equipment of auxiliary community, and the dynamic conditioning number of times of carrier resource can be reduced, avoid the packet loss of data retransmission, preferential guarantee take carrier wave as the band resource of the subscriber equipment of main plot, is realizing the performance as far as possible ensureing subscriber equipment while band resource effectively utilizes.
Fig. 3 shows the structural representation of the carrier resource dynamic adjusting device based on carrier aggregation that one embodiment of the invention provides, as shown in Figure 3, the carrier resource dynamic adjusting device based on carrier aggregation of the present embodiment, comprising: determination module 31 and adjusting module 32;
Determination module 31, for determining that the distribution of all Physical Resource Block PRB in a carrier wave uses information;
Adjusting module 32, for for the preset rules corresponding according to described distribution use information, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset;
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
It should be noted that the device of the present embodiment, when community CC sets up, be defaulted as the main plot UE that only existence is main plot with this carrier cell in Long Term Evolution LTE system, so the initial value of α is 0.
Will be understood that, the LC_Threshold of the present embodiment can pre-set according to emulation or actual measurement experience.
In an embody rule, described determination module 31, can specifically for determining that all PRB in a carrier wave are not used or used by main plot UE, and it can comprise:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module 32, can be specifically for
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
In another embody rule, described determination module 31, can specifically for determining that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE, and it can comprise:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module 32, can be specifically for
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
For example, first preconfiguration parameters of the present embodiment and the second preconfiguration parameters can be the configuration parameter of Operation & Maintenance System OM respectively, they can pre-set according to emulation or actual measurement experience respectively, and Operation & Maintenance System OM is already present in the Long Term Evolution LTE system of prior art.
It should be noted that, in the present embodiment, before α value is adjusted, just can obtain supposing total load the Load ' _ CC_PCell of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after α value being adjusted according to the second formula.
Will be understood that, the Transmission Time Interval TTI=1ms in each dynamic conditioning cycle of the present embodiment.
Will be understood that, load evaluation module in the RRM of the present embodiment is already present in the Long Term Evolution LTE system of prior art, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell ∈ [0,1], and the frequency band of Load_CC_PCell and Load_CC_SCell change do not affect LC_Threshold.
The carrier resource dynamic adjusting device based on carrier aggregation of the present embodiment, can solve under carrier aggregation mode in each carrier wave with carrier wave be main plot subscriber equipment and take carrier wave as the resource allocation problem of subscriber equipment of auxiliary community, and the dynamic conditioning number of times of carrier resource can be reduced, avoid the packet loss of data retransmission, preferential guarantee take carrier wave as the band resource of the subscriber equipment of main plot, is realizing the performance as far as possible ensureing subscriber equipment while band resource effectively utilizes.
The carrier resource dynamic adjusting device based on carrier aggregation of the present embodiment, may be used for the technical scheme performing embodiment of the method shown in earlier figures 2, it realizes principle and technique effect is similar, repeats no more herein.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1., based on a carrier resource dynamic adjusting method for carrier aggregation, it is characterized in that, comprising:
Determine that the distribution of all Physical Resource Block PRB in a carrier wave uses information;
The preset rules corresponding according to described distribution use information, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset;
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
2. method according to claim 1, is characterized in that, the distribution of the described all Physical Resource Block PRB determined in a carrier wave uses information, comprising:
Determine that all PRB in a carrier wave are not used or used by main plot UE;
Or,
Determine that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE.
3. method according to claim 2, is characterized in that, the described all PRB determined in a carrier wave are not used or used by main plot UE, comprising:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, the described preset rules corresponding according to described distribution use information, adjusts this allocation of carriers and gives the quantity that current area is the PRB of the main plot UE of main plot, comprising:
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
4. method according to claim 2, is characterized in that, the described all PRB determined in a carrier wave are all used by main plot UE and auxiliary community UE, comprising:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, the described preset rules corresponding according to described distribution use information, adjusts this allocation of carriers and gives the quantity that current area is the PRB of the main plot UE of main plot, comprising:
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
5., based on a carrier resource dynamic adjusting device for carrier aggregation, it is characterized in that, comprising:
Determination module, for determining that the distribution of all Physical Resource Block PRB in a carrier wave uses information;
Adjusting module, for the preset rules corresponding according to described distribution use information, adjust this allocation of carriers and give the quantity that current area is the PRB of the main plot user equipment (UE) of main plot, realize at least one and can use the PRB being not yet assigned to described main plot UE after adjusting in described carrier wave with the auxiliary community UE that current area is auxiliary community, described preset rules comprises: the regulation rule arranged according to the heavy duty decision threshold LC_Threshold preset;
Wherein, described auxiliary community UE is the UE supporting carrier aggregation, LC_Threshold ∈ [0,1].
6. device according to claim 5, is characterized in that, described determination module, specifically for
Determine that all PRB in a carrier wave are not used or used by main plot UE;
Or,
Determine that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE.
7. device according to claim 6, is characterized in that, described determination module, specifically for determining that all PRB in a carrier wave are not used or used by main plot UE, comprising:
When α=0, determine that all PRB in carrier wave are not used or used by main plot UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module, specifically for
Upgrade α value, obtain α=PCell_Res_Min;
Wherein, PCell_Res_Min is the first preconfiguration parameters, is auxiliary community available band resource minimum scale, PCell_Res_Min ∈ [0,1].
8. device according to claim 6, is characterized in that, described determination module, specifically for determining that all PRB in a carrier wave are all used by main plot UE and auxiliary community UE, comprising:
When α ≠ 0, determine that all PRB in carrier wave are all used by main plot UE and auxiliary community UE;
Wherein, α is the ratio that the PRB number of descending/up available resources CC_SCell of auxiliary community UE of this carrier wave accounts for the total PRB of current whole physical down/uplink shared channel resources, α ∈ [0,1];
Correspondingly, described adjusting module, specifically for
In each dynamic conditioning cycle after increasing described auxiliary community UE, when Load_CC_PCell >=LC_Threshold, according to the first formula, α value is adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell >=LC_Threshold, α value is not adjusted;
Or,
In each dynamic conditioning cycle after increasing described auxiliary community UE, at Load_CC_PCell < LC_Threshold, and Load_CC_SCell > LC_Threshold, during Load ' _ CC_PCell < LC_Threshold, according to the second formula, α value is adjusted;
Wherein, Load_CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load_CC_SCell is the total load of auxiliary community each business of UE of this carrier wave calculated according to the load evaluation module in RRM, Load ' _ CC_PCell is the total load of main plot each business of UE of this carrier wave calculated according to the load evaluation module in RRM after adjusting α value according to the second formula, Load_CC_PCell, Load ' _ CC_PCell, Load_CC_SCell ∈ [0, 1],
First formula is:
α＝α–delta；
Second formula is:
α＝α+delta；
Wherein, delta is the second preconfiguration parameters, is carrier resource dynamic conditioning step-length, delta ∈ [0,1].
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