CN103428703A - Spectrum resource accessing method and system - Google Patents
Spectrum resource accessing method and system Download PDFInfo
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- CN103428703A CN103428703A CN2012101568304A CN201210156830A CN103428703A CN 103428703 A CN103428703 A CN 103428703A CN 2012101568304 A CN2012101568304 A CN 2012101568304A CN 201210156830 A CN201210156830 A CN 201210156830A CN 103428703 A CN103428703 A CN 103428703A
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Abstract
The invention discloses a spectrum resource accessing method and system. The spectrum resource accessing method includes the following steps that a macro base station and a family base station judges whether spectrum resources which authorize the macro base station and the family base station can meet the service requirements or not respectively; if the spectrum resource which authorizes the macro base station can not meet the service requirement of the macro base station, the macro base station perceives whether a frequency band which is not used by the family base station exists or not in the range of the spectrum resource which authorizes the family base station, and if the frequency band which is not used by the family base station exists, the perceived frequency band which is not used by the family base station is distributed to the macro base station; if the spectrum resource which authorizes the family base station can not meet the service requirement, the family base station perceives whether a frequency band which is not used by the macro base station exists or not and if the frequency band which is not used by the macro base station exists, the perceived frequency band which is not used by the macro base station is distributed to the family base station. The spectrum resource accessing method and system can not only improve the utilization rate of the spectrum resources, but also can effectively ensure service quality of an indoor user.
Description
Technical field
The present invention relates to the Home eNodeB field, especially, relate to a kind of frequency spectrum resource acquisition methods and system.
Background technology
According to ASSOCIATE STATISTICS, data service more than speech business in future mobile communication system more than 50% and 70% will occur in indoor, indoor, low speed and focus will become following prior application scenarios of mobile Internet epoch, therefore, one of focus of 3GPP LTE-Advanced is optimized indoor scene exactly, carries out the demand of voice and high-speed data service transmission under indoor scene to meet following user.
Femtocell(Home NodeB, Home eNodeB) technology is as a kind of effective means that improves indoor user voice and high-speed data service service quality, but more and more is subject to the favor of industry with characteristics such as its low-power consumption, low cost, plug and play and flexible configuration.3GPP has started femtocell is launched to standardization effort at present, and pair discussion of femtocell technology is all arranged in R8, R9, R10 and the R11 of its issue.
Introduce after femtocell the RRM made network and become and become increasingly complex in conventional cellular network, wherein, the utilance problem of frequency spectrum resource seems particularly outstanding.Because the deployment of femtocell has uncertainty, each the macrocell inherence not quantity of femtocell in the same time is difficult to pre-determine, and because the information interaction problem between femtocell and macro base station and femtocell is still explored at present, therefore, after introducing femtocell, how femtocell and macro base station utilize limited system spectral resources efficiently is a current study hotspot.
Resource allocation mechanism between femtocell and macro base station mainly comprises following three kinds at present:
In the first distribution mechanism, femtocell and macro base station are used identical frequency band, are total to channel configuration, as shown in Figure 1.In this resource allocation mechanism, the spendable resource of femtocell and macro base station is maximum, but the co-channel interference caused is also the most serious.
In the second distribution mechanism, femtocell and macro base station are used respectively the independently frequency band of quadrature, as shown in Figure 2.In this resource allocation mechanism, femtocell and macro base station are used respectively mutually orthogonal resource, can avoid co-channel interference in community.But this distribution mechanism spectrum efficiency is minimum, especially, in femtocell and the obvious situation of macro base station load variations, this resource allocation mechanism causes the decline of system effectiveness more obvious.
In the third distribution mechanism, femtocell and macro base station shared portion frequency resource, as shown in Figure 3.Two factors---co-channel interference and the spectrum efficiency that affect throughput of system have been considered in this resource allocation mechanism, the compromise that is above two kinds of distribution mechanisms is considered, more can adapt to the demand that future mobile communication system is used frequency resource, therefore this resource allocation mechanism in the industry cycle is subject to extensive concern.
The inventor notes, although the third distribution mechanism is better than first two distribution mechanism,, conscientiously study discovery through the inventor, at least still there is following some weak point in the third distribution mechanism:
At first, the characteristics of the following spectrum distribution of IMT-A are not considered in existing research.Above-mentionedly to the resource allocation mechanism between femtocell and macro base station, can reduce to a certain extent interference, improve throughput of system, but most research all supposes that operator distributes identical frequency to macro base station and femtocell, is generally the frequency range of 2Ghz left and right.Yet the potential deployment frequency range of following LTE-Advanced comprises 450 ~ 470Mhz, 698 ~ 862Mhz, 790 ~ 862Mhz, 2.3 ~ 2.4Ghz, 3.2 ~ 4.2Ghz and 4.4 ~ 4.99Ghz etc.From these frequency ranges, can find out, except 2.3 ~ 2.4Ghz is positioned at conventional cellular systems frequency range commonly used, new frequency range presents the trend of different degrees of differentiation.Especially a large amount of potential frequency ranges concentrates in the above high spectrum of 3.4Ghz.High band is in coverage, the ability and the mobility aspect that penetrate building all are not so good as low-frequency range, based on external mobile communication system two-forty, large bandwidth, (LTE-A requires the maximum 100M of bandwidth of operation in addition, transmision peak speed under Hypomobility reaches 1GBps) requirement, operator probably is used in conjunction with the height frequency range when networking, be the low-and high-frequency inter-frequency networking, so how in the situation that height frequency range inter-frequency networking carries out rational resource distribution to femtocell and macro base station, just become a problem.
Secondly, existing research does not form unified thinking to the cooperation mode between two systems.To carry out thering is good information interaction mechanism between two networks of rational resource distribution needs to femtocell and macro base station, in research, the information interaction mechanism based between femtocell and macro base station has three kinds at present: the first is to carry out information interaction by X2 interface, but in up-to-date release version, has negated this scheme for the consideration 3GPP of cost; The second is to carry out two information interactions between network by mobile terminal as relaying, but this scheme makes the complexity of Terminal Design uprise reliability step-down simultaneously; The third frequency spectrum perception technology that is femtocell or macro base station by cognitive radio obtains the resource service condition of macro base station on every side or femtocell, and this scheme does not need to terminal is carried out any improvement and the realization of ripe this scheme of technical support is arranged.The effective means of cognitive radio technology frequency spectrum resource day by day in short supply as efficient utilization enjoys industry to pay close attention in recent years, yet cognitive radio still is in conceptual phase at present there is no practical application, and cognitive radio technology is applied in the femtocell network and also for the application of cognitive radio technology in the 4G network, provides an example.Now existing much research to cognitive radio technology the application in the femtocell network inquire into, yet in these researchs, all using femtocell as processing from system, and in future mobile communication system, have voice service more than 50% and 70% above data service to occur in indoor, and the service quality of indoor user can't equally be protected with outdoor user at present.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of frequency spectrum resource acquisition methods and system, can efficiently utilize frequency spectrum resource.
According to an aspect of the present invention, proposed a kind of frequency spectrum resource acquisition methods, comprised that macro base station and Home eNodeB are judged as respectively the frequency spectrum resource of authorizing separately and whether can meet business demand; The frequency spectrum resource of macro base station mandate can not meet its business demand if, whether macro base station perception in the frequency spectrum resource scope for the Home eNodeB mandate exists the frequency range of not used by Home eNodeB, as existed, the frequency allocation of not used by Home eNodeB that will perceive is to macro base station; The frequency spectrum resource of Home eNodeB mandate can not meet its business demand if, whether Home eNodeB perception in the frequency spectrum resource scope for the macro base station mandate exists the frequency range of not used by macro base station, as existed, the frequency allocation of not used by macro base station that will perceive is to Home eNodeB.
According to a further aspect in the invention, also propose a kind of frequency spectrum resource and obtained system, comprise macro base station and Home eNodeB, wherein, whether macro base station can meet its business demand for the frequency spectrum resource that is judged as its mandate, and the frequency spectrum resource of macro base station mandate can not meet its business demand if, and in the frequency spectrum resource scope for the Home eNodeB mandate, whether perception exists the frequency range of not used by Home eNodeB, as existed, the frequency allocation of not used by Home eNodeB that will perceive is to macro base station; Whether Home eNodeB can meet its business demand for the frequency spectrum resource that is judged as its mandate, the frequency spectrum resource of Home eNodeB mandate can not meet its business demand if, in the frequency spectrum resource scope for the macro base station mandate, whether perception exists the frequency range of not used by macro base station, as existed, the frequency allocation of not used by macro base station that will perceive is to Home eNodeB.
Frequency spectrum resource acquisition methods provided by the invention and system, be not only macro base station assigns authorized frequency range, according to the different application scene, is also that Home eNodeB distributes the corresponding frequency range of authorizing simultaneously.When the mandate frequency range of the distribution of the either party in macro base station or Home eNodeB is used up, in its mandate frequency range that all can distribute for the other side at network, whether perception exists the frequency range be not used, if exist, this frequency range is used for to the business of self.Like this, not only improve the utilance of frequency spectrum resource, simultaneously, due to also, for Home eNodeB has distributed corresponding mandate frequency range, therefore, can effectively guarantee the service quality of indoor user.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part.In the accompanying drawings:
Fig. 1 is a kind of resource allocation mechanism schematic diagram between Home eNodeB and macro base station in prior art.
Fig. 2 is the another kind of resource allocation mechanism schematic diagram between Home eNodeB and macro base station in prior art.
Fig. 3 has a kind of resource allocation mechanism schematic diagram between Home eNodeB and macro base station in prior art.
Fig. 4 is a kind of resource allocation mechanism schematic diagram between Home eNodeB of the present invention and macro base station.
Fig. 5 is the another kind of resource allocation mechanism schematic diagram between Home eNodeB of the present invention and macro base station.
Fig. 6 is the interference scene schematic diagram between Home eNodeB.
Fig. 7 is the schematic flow sheet of an embodiment of frequency spectrum resource acquisition methods of the present invention.
Fig. 8 is the structural representation that frequency spectrum resource of the present invention obtains an embodiment of system.
Fig. 9 is the structural representation that frequency spectrum resource of the present invention obtains another embodiment of system.
Figure 10 is the structural representation of an embodiment again that frequency spectrum resource of the present invention obtains system.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention wherein is described.Exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but do not form inappropriate limitation of the present invention.
Below to the description only actually of at least one exemplary embodiment, be illustrative, never as any restriction to the present invention and application or use.
As previously mentioned, following according to statistics have voice service and 70% above data service more than 50% will occur in indoor, and the femtocell technology is as guaranteeing the indoor covering of future mobile communication system (LTE-A), the service quality that improves its user of effective means of throughput of system need to be guaranteed.
The inventor changes the situation of the subordinate using femtocell as macro base station in existing cognitive femtocell research after conscientiously studying, at least a portion high band resource in frequency spectrum resource is distributed to femtocell, authorize frequency range as it, thereby improved the status of femtocell, more be conducive to guarantee the QoS demand of indoor user.
In addition, the inventor also studies discovery, can determine according to the characteristic of different frequency range the mandate frequency range of macro base station and femtocell.Due to high band (for example, >=1Ghz) be not so good as low-frequency range aspect the ability that covers, penetrates building and mobility, therefore be more suitable for and provide covering for indoor low speed user, for example, and low-frequency range (, therefore<1Ghz) diffracting power is strong, coverage is large, mobility is good, is more suitable for and provides covering for the outdoor high-speed user.Based on above consideration, as shown in Figure 4 and Figure 5, high band resource or at least a portion high band resource can be distributed to femtocell and authorize frequency range as it, why authorize frequency range and low-frequency range resource and other a part of high band resource are distributed to macro base station as it, be to have considered that also may there be the situation of low speed hot spot region in outdoor user for macro base station distributes a part of high frequency resource.
In addition, the inventor also finds, the reusability of high band resource is higher than the reusability of low-frequency range resource, below in conjunction with Fig. 6, describes in detail.
As shown in Figure 6, when Femto BS1 and the Femto BS2 FUE that all proportion f1 is corresponding with it communicate, will cause Femto BS1, to FUE2 and Femto BS2, FUE1 is caused to interference, FUE(for example, FUE1 or FUE2) SIR be
Wherein, P
rFor the available signal power that FUE receives, I is interfering signal power.Distance relation between two femtocell below is discussed when using respectively the height frequency range and obtaining identical SIR.
When femto BS is used the 1Ghz frequency range to communicate, we suppose between femto BS1 to femto BS2 apart from d
1GHzFor 100m, the distance between femto BS to FUE is 10m, and the transmitting power of femto BS is 21dbm, and the indoor propagation model is:
Wherein, W
LossLoss through walls while for electromagnetic wave, passing through building masonry wall, calculate, and works as f
cDuring=1GHz, the SIR that FUE2 receives is: SIR
Fue2=40dB.
When femto BS is used the 3Ghz frequency range to communicate, loss through walls increases, and supposes that other conditions all reach SIR in constant situation equally
Fue2During=40dB, draw as calculated, between femto BS1 to femto BS2 apart from d
3GHzFor 56m, as can be seen here, the higher multiplex distance of frequency is less, therefore for femto BS disposes high band, can make the utilance of frequency increase.
In sum, at least a portion high band resource can be distributed to femtocell and authorize frequency range as it, and other a part of high band resource and low-frequency range resource are distributed to macro base station, as it, authorize frequency range.That is, for a part of high band resource, femtocell is as main system, and macro base station is as from system; And, for another part high band resource and low-frequency range resource, macro base station is as main system, femtocell is as from system.When the runs out of resource sets of femtocell or the governable mandate frequency range of macro base station, macro base station and femtocell all can according to around disturbed condition adopt and wait for an opportunity the mode of access and use the resource of unauthorized frequency range.
Fig. 7 is the schematic flow sheet of an embodiment of frequency spectrum resource acquisition methods of the present invention.
As shown in Figure 7, this embodiment can comprise the following steps:
S702, because system is that macro base station has distributed the frequency spectrum resource of authorizing, whether the frequency spectrum resource that therefore at first macro base station is judged as its mandate can meet business demand, the frequency spectrum resource of macro base station mandate can meet its business demand if, and system is with coming for macro base station terminal distribution frequency range for the frequency spectrum resource of its mandate;
S704, the frequency spectrum resource of macro base station mandate can not meet its business demand if, whether macro base station perception in the frequency spectrum resource scope for the Home eNodeB mandate exists the frequency range of not used by Home eNodeB, as existed, the frequency allocation of not used by Home eNodeB that will perceive is to macro base station;
S706, identical with macro base station, because system is that Home eNodeB has also distributed the frequency spectrum resource of authorizing, whether the frequency spectrum resource that therefore at first Home eNodeB also is judged as its mandate can meet business demand, the frequency spectrum resource of Home eNodeB mandate can meet its business demand if, and system is with coming for Home eNodeB terminal distribution frequency range for the frequency spectrum resource of its mandate;
S708, the frequency spectrum resource of Home eNodeB mandate can not meet its business demand if, whether Home eNodeB perception in the frequency spectrum resource scope for the macro base station mandate exists the frequency range of not used by macro base station, as existed, the frequency allocation of not used by macro base station that will perceive is to Home eNodeB.
The execution sequence that it is pointed out that above-mentioned steps S702 and step S706 does not interdepend, and these two steps can successively be carried out, and also can walk abreast.
This embodiment distributes to macro base station and Home eNodeB is authorized frequency range as it according to different scenes using different frequency range, and when macro base station or Home eNodeB are assigned to resource can be respectively as the disturbed condition of unauthorized frequency range around system senses when not enough, adopt and wait for an opportunity access way and use unauthorized resource.This resource division mode has not only solved the resource allocation problem under the inter-frequency networking scene, and also makes the utilization of resource more efficient to the use of cognitive radio technology, and then has improved spectrum efficiency.
In an example, above-mentioned steps S704 can realize by following step:
When using up for the frequency spectrum resource of macro base station mandate, macro base station and the macro base station terminal of communicating by letter with macro base station are perceived as in the frequency spectrum resource scope of Home eNodeB mandate whether have the frequency range of not used by Home eNodeB by frequency spectrum detection (being called again energy detection technique) simultaneously, if exist, macro base station and macro base station terminal are carried out the frequency range common factor to determine that both are perceived alternately by the result perceived, frequency allocation in again frequency range being occured simultaneously is used to macro base station, wherein, the frequency allocation that can choose randomly in the frequency range common factor is used to macro base station; Or choose the lower frequency allocation of frequency range common factor medium frequency according to the frequency characteristics and use to macro base station.
Specifically, when each frequency range in the frequency spectrum resource for the macro base station mandate is all used up, system is enabled cognitive function, uses energy detection technique (being the spectral range for the Home eNodeB mandate) in certain spectral range to be perceived as Home eNodeB mandate on every side herein but the frequency range that is not used.This frequency spectrum perception function can be embodied as: after antenna receives signal, at first go out by band-pass filter the spectral range that system is the Home eNodeB mandate, calculate in this spectral range each little frequency range (according to channel width, corresponding to channel width) in gross energy, the energy that calculates and the threshold value of setting are compared, if higher than threshold value, definite this frequency range is just used by Home eNodeB, otherwise definite this frequency range is not used by Home eNodeB, can be used by macro base station.If macro base station and macro base station terminal detect a plurality of available frequency ranges jointly, both can consult to choose at random the frequency range that will use by the frequency range of use or by macro base station mutually, then this band information is informed to the frequency range use that macro base station terminal or macro base station and the common selecting frequency of macro base station terminal are minimum.
In another example, step S708 can realize by following step:
When using up for the frequency spectrum resource of Home eNodeB mandate, Home eNodeB and Home eNodeB terminal are perceived as in the frequency spectrum resource scope of macro base station mandate whether have the frequency range of not used by macro base station by frequency spectrum detection simultaneously, if exist, Home eNodeB and Home eNodeB terminal are carried out the result perceived alternately, and definite frequency range that both perceive is occured simultaneously, frequency allocation in again frequency range being occured simultaneously is used to Home eNodeB, wherein, the frequency allocation that can choose at random in the frequency range common factor is used to Home eNodeB; Or choose the higher frequency allocation of frequency range common factor medium frequency according to the frequency characteristics and use to Home eNodeB.
Specifically, when each frequency range in the frequency spectrum resource for the Home eNodeB mandate is all used up, system is enabled cognitive function, uses energy detection technique (being the spectral range for the macro base station mandate) in certain spectral range to be perceived as macro base station mandate on every side herein but the frequency range that is not used.This frequency spectrum perception function can be embodied as: after antenna receives signal, at first go out by band-pass filter the spectral range that system is the macro base station mandate, calculate in this spectral range each little frequency range (according to channel width, corresponding to channel width) in gross energy, the energy that calculates and the threshold value of setting are compared, if higher than threshold value, definite this frequency range is just used by macro base station, otherwise definite this frequency range is not used by macro base station, can be used by Home eNodeB.If Home eNodeB and Home eNodeB terminal detect a plurality of available frequency ranges jointly, both can consult to choose at random the frequency range that will use by the frequency range of use or by Home eNodeB mutually, then this band information is informed to the frequency range use that Home eNodeB terminal or Home eNodeB and the common selecting frequency of Home eNodeB terminal are the highest.
One of ordinary skill in the art will appreciate that, realize that the hardware that the whole and part steps of said method embodiment can be relevant by program command completes, aforesaid program can be stored in a computing equipment read/write memory medium, this program is when carrying out, execution comprises the step of said method embodiment, and two aforesaid storage mediums can comprise the various media that can be program code stored such as ROM, RAM, magnetic disc and CD.
Fig. 8 is the structural representation that frequency spectrum resource of the present invention obtains an embodiment of system.
As shown in Figure 8, the system 80 of this embodiment can comprise macro base station 802 and Home eNodeB 804, wherein, whether macro base station 802 can meet its business demand for the frequency spectrum resource that is judged as its mandate, the frequency spectrum resource of macro base station mandate can not meet its business demand if, in the frequency spectrum resource scope for the Home eNodeB mandate, whether perception exists the frequency range of not used by Home eNodeB, and as existed, the frequency allocation of not used by Home eNodeB that will perceive is to macro base station; Whether Home eNodeB 804 can meet its business demand for the frequency spectrum resource that is judged as its mandate, the frequency spectrum resource of Home eNodeB mandate can not meet its business demand if, in the frequency spectrum resource scope for the macro base station mandate, whether perception exists the frequency range of not used by macro base station, as existed, the frequency allocation of not used by macro base station that will perceive is to Home eNodeB.
Fig. 9 is the structural representation that frequency spectrum resource of the present invention obtains another embodiment of system.
As shown in Figure 9, macro base station 902 in the system 90 of this embodiment can comprise macro base station judging unit 9021 and macro base station perception unit 9022, wherein, whether the frequency spectrum resource that macro base station judging unit 9021 is judged as its mandate can meet its business demand, the frequency spectrum resource of macro base station mandate can not meet its business demand if, whether macro base station perception unit 9022 perception in the frequency spectrum resource scope for the Home eNodeB mandate exists the frequency range of not used by Home eNodeB, as existed, the frequency allocation of not used by Home eNodeB that will perceive is to macro base station.
At frequency spectrum resource of the present invention, obtain in the another embodiment of system, again referring to Fig. 9, Home eNodeB 904 in this embodiment can comprise Home eNodeB judging unit 9041 and Home eNodeB perception unit 9042, wherein, whether the frequency spectrum resource that Home eNodeB judging unit 9041 is judged as its mandate can meet its business demand, the frequency spectrum resource of Home eNodeB mandate can not meet its business demand if, whether Home eNodeB perception unit 9042 perception in the frequency spectrum resource scope for the macro base station mandate exists the frequency range of not used by macro base station, as existed, the frequency allocation of not used by macro base station that will perceive is to Home eNodeB.
Figure 10 is the structural representation of an embodiment again that frequency spectrum resource of the present invention obtains system.
As shown in figure 10, with the embodiment in Fig. 9, compare, the system 100 of this embodiment also comprises macro base station terminal 102, this terminal 102 comprises macro base station terminal perception unit 1021, macro base station terminal sensing results transmitting element 1022 and macro base station band information receiving element 1023, wherein, when using up for the frequency spectrum resource of macro base station mandate, macro base station terminal perception unit 1021 and macro base station are perceived as in the frequency spectrum resource scope of Home eNodeB mandate whether have the frequency range of not used by Home eNodeB by frequency spectrum detection simultaneously, if exist, the result that macro base station terminal sensing results transmitting element 1022 perceives macro base station terminal perception unit is sent to macro base station, macro base station band information receiving element 1023 receives the definite band information of macro base station again.
In this embodiment, macro base station perception unit 1042 in macro base station 104 in system 100 can comprise the first frequency spectrum detection subelement 1042a, first occurs simultaneously determines subelement 1042b and the first frequency allocation subelement 1042c, wherein, when using up for the frequency spectrum resource of macro base station mandate, the first frequency spectrum detection subelement 1042a and macro base station terminal 102 are perceived as in the frequency spectrum resource scope of Home eNodeB mandate whether have the frequency range of not used by Home eNodeB by frequency spectrum detection simultaneously, if exist, the result that the result that the definite subelement 1042b of the first common factor perceives the first frequency spectrum detection subelement 1042a and macro base station terminal 102 perceive is carried out alternately, and definite frequency range that both perceive is occured simultaneously, the first frequency allocation subelement 1042c determines that by the first common factor the frequency allocation of the definite frequency range of subelement 1042b in occuring simultaneously used to macro base station.
At frequency spectrum resource of the present invention, obtain in an embodiment again of system, again referring to Figure 10, the system 100 of this embodiment can also comprise Home eNodeB terminal 106, this terminal 106 can comprise Home eNodeB terminal perception unit 1061, Home eNodeB terminal sensing results transmitting element 1062 and Home eNodeB band information receiving element 1063, wherein, when using up for the frequency spectrum resource of Home eNodeB mandate, Home eNodeB terminal perception unit 1061 and Home eNodeB are perceived as in the frequency spectrum resource scope of macro base station mandate whether have the frequency range of not used by macro base station by frequency spectrum detection simultaneously, if exist, the result that Home eNodeB terminal sensing results transmitting element 1062 perceives Home eNodeB terminal perception unit is sent to Home eNodeB, Home eNodeB band information receiving element 1063 receives the definite band information of Home eNodeB.
In this embodiment, Home eNodeB perception unit 1082 in Home eNodeB 108 in system 100 can comprise the second frequency spectrum detection subelement 1082a, second occurs simultaneously determines subelement 1082b and the second frequency allocation subelement 1082c, wherein, when using up for the frequency spectrum resource of Home eNodeB mandate, the second frequency spectrum detection subelement 1082a and Home eNodeB terminal are perceived as in the frequency spectrum resource scope of macro base station mandate whether have the frequency range of not used by macro base station by frequency spectrum detection simultaneously, if exist, the result that the result that the definite subelement 1082b of the second common factor perceives the second frequency spectrum detection subelement and Home eNodeB terminal perceive is carried out alternately, and definite frequency range that both perceive is occured simultaneously, the second frequency allocation subelement 1082c determines that by the second common factor the frequency allocation of the definite frequency range of subelement in occuring simultaneously used to Home eNodeB.
It is emphasized that Home eNodeB in above-described embodiment can be authorized to have the high band in the frequency spectrum resource of the network planning, macro base station can be authorized to have the low-frequency range in the frequency spectrum resource of the network planning.Alternatively, Home eNodeB can also be authorized to have at least a portion high band in the frequency spectrum resource of the network planning, and macro base station can be authorized to have low-frequency range and the residue high band in the frequency spectrum resource of the network planning.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that part identical with similar between each embodiment can cross-references.For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part can be referring to the explanation of embodiment of the method part.
Resource allocation mechanism between existing Home eNodeB and macro base station fails well to adapt to the development of future network, importance and collaborative interactive mechanism between the comprehensive future network macro base station of the above embodiment of the present invention and Home eNodeB, propose a kind of based on intersecting the macro base station of perception and the scheme that Home eNodeB obtains frequency resource.This scheme has changed in existing scheme using Home eNodeB as macro base station from the way of system, but the characteristics that develop according to future network, be that in future mobile communication system, the data service more than the speech business more than 50% and 70% will occur in indoor, change the relation between macro base station and Home eNodeB, mandate frequency range using a part of frequency resource as Home eNodeB and proposed novel intersection perceptive mode, solved the resource allocation problem under the inter-frequency networking scene, and then met the business demand of indoor user, also improved the utilance of frequency spectrum simultaneously.
Although by example, specific embodiments more of the present invention are had been described in detail, it should be appreciated by those skilled in the art, above example is only in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (14)
1. a frequency spectrum resource acquisition methods, is characterized in that, comprising:
Whether macro base station and Home eNodeB are judged as respectively the frequency spectrum resource of authorizing separately can meet business demand;
The frequency spectrum resource of described macro base station mandate can not meet its business demand if, whether the perception in the frequency spectrum resource scope for described Home eNodeB mandate of described macro base station exists the frequency range of not used by described Home eNodeB, as existed, described macro base station is given in the frequency allocation of not used by described Home eNodeB that will perceive;
The frequency spectrum resource of described Home eNodeB mandate can not meet its business demand if, whether the perception in the frequency spectrum resource scope for described macro base station mandate of described Home eNodeB exists the frequency range of not used by described macro base station, as existed, described Home eNodeB is given in the frequency allocation of not used by described macro base station that will perceive.
2. frequency spectrum resource acquisition methods according to claim 1, is characterized in that, the high band in the frequency spectrum resource of the network planning is licensed to described Home eNodeB, and the low-frequency range in planned frequency spectrum resource is licensed to described macro base station.
3. frequency spectrum resource acquisition methods according to claim 1, it is characterized in that, at least a portion high band in the frequency spectrum resource of the network planning is licensed to described Home eNodeB, the low-frequency range in planned frequency spectrum resource and residue high band are licensed to described macro base station.
4. frequency spectrum resource acquisition methods according to claim 1, it is characterized in that, whether the perception in the frequency spectrum resource scope for described Home eNodeB mandate of described macro base station exists the frequency range of not used by described Home eNodeB, as existed, the frequency allocation of not used by described Home eNodeB that will perceive comprises to the step of described macro base station:
When using up for the frequency spectrum resource of described macro base station mandate, described macro base station and macro base station terminal are perceived as in the frequency spectrum resource scope of described Home eNodeB mandate whether have the frequency range of not used by described Home eNodeB by frequency spectrum detection simultaneously;
If exist, described macro base station and macro base station terminal are carried out the result perceived alternately, and determine the frequency range common factor that both perceive;
Frequency allocation during described frequency range is occured simultaneously is used to described macro base station.
5. frequency spectrum resource acquisition methods according to claim 4, is characterized in that, the step that the frequency allocation during described frequency range is occured simultaneously is used to described macro base station is specially:
The frequency allocation of choosing at random in described frequency range common factor is used to described macro base station; Or
Choosing the frequency allocation that described frequency range common factor medium frequency is lower uses to described macro base station.
6. frequency spectrum resource acquisition methods according to claim 1, it is characterized in that, whether the perception in the frequency spectrum resource scope for described macro base station mandate of described Home eNodeB exists the frequency range of not used by described macro base station, as existed, the frequency allocation of not used by described macro base station that will perceive comprises to the step of described Home eNodeB:
When using up for the frequency spectrum resource of described Home eNodeB mandate, described Home eNodeB and Home eNodeB terminal are perceived as in the frequency spectrum resource scope of described macro base station mandate whether have the frequency range of not used by described macro base station by frequency spectrum detection simultaneously;
If exist, described Home eNodeB and Home eNodeB terminal are carried out the result perceived alternately, and determine the frequency range common factor that both perceive;
Frequency allocation during described frequency range is occured simultaneously is used to described Home eNodeB.
7. frequency spectrum resource acquisition methods according to claim 6, is characterized in that, the step that the frequency allocation during described frequency range is occured simultaneously is used to described Home eNodeB is specially:
The frequency allocation of choosing at random in described frequency range common factor is used to described Home eNodeB; Or
Choosing the frequency allocation that described frequency range common factor medium frequency is higher uses to described Home eNodeB.
8. a frequency spectrum resource obtains system, it is characterized in that, comprises macro base station and Home eNodeB, wherein,
Described macro base station, whether can meet its business demand for the frequency spectrum resource that is judged as its mandate, the frequency spectrum resource of described macro base station mandate can not meet its business demand if, in the frequency spectrum resource scope for described Home eNodeB mandate, whether perception exists the frequency range of not used by described Home eNodeB, as existed, described macro base station is given in the frequency allocation of not used by described Home eNodeB that will perceive;
Described Home eNodeB, whether can meet its business demand for the frequency spectrum resource that is judged as its mandate, the frequency spectrum resource of described Home eNodeB mandate can not meet its business demand if, in the frequency spectrum resource scope for described macro base station mandate, whether perception exists the frequency range of not used by described macro base station, as existed, described Home eNodeB is given in the frequency allocation of not used by described macro base station that will perceive.
9. frequency spectrum resource according to claim 8 obtains system, it is characterized in that, described macro base station comprises:
Whether the macro base station judging unit, can meet its business demand for the frequency spectrum resource that is judged as its mandate;
Macro base station perception unit, be used for the frequency spectrum resource of described macro base station mandate and if can not meet its business demand, in the frequency spectrum resource scope for described Home eNodeB mandate, whether perception exists the frequency range of not used by described Home eNodeB, as existed, described macro base station is given in the frequency allocation of not used by described Home eNodeB that will perceive.
10. frequency spectrum resource according to claim 8 obtains system, it is characterized in that, described Home eNodeB comprises:
Whether the Home eNodeB judging unit, can meet its business demand for the frequency spectrum resource that is judged as its mandate;
Home eNodeB perception unit, be used for the frequency spectrum resource of described Home eNodeB mandate and if can not meet its business demand, in the frequency spectrum resource scope for described macro base station mandate, whether perception exists the frequency range of not used by described macro base station, as existed, described Home eNodeB is given in the frequency allocation of not used by described macro base station that will perceive.
11. frequency spectrum resource according to claim 8 obtains system, it is characterized in that, described Home eNodeB is authorized to have the high band in the frequency spectrum resource of the network planning; Described macro base station is authorized to have the low-frequency range in the frequency spectrum resource of the network planning.
12. frequency spectrum resource according to claim 8 obtains system, it is characterized in that, described Home eNodeB is authorized to have at least a portion high band in the frequency spectrum resource of the network planning; Described macro base station is authorized to have low-frequency range and the residue high band in the frequency spectrum resource of the network planning.
13. frequency spectrum resource according to claim 9 obtains system, it is characterized in that, described system also comprises the macro base station terminal,
Described macro base station perception unit comprises:
The first frequency spectrum detection subelement, for when using up for the frequency spectrum resource of described macro base station mandate, with described macro base station terminal, be perceived as in the frequency spectrum resource scope of described Home eNodeB mandate whether have the frequency range of not used by described Home eNodeB by frequency spectrum detection simultaneously;
First occurs simultaneously determines subelement, if for existing, the result that the result described the first frequency spectrum detection subelement perceived and described macro base station terminal perceive is carried out alternately, and determines the frequency range common factor that both perceive;
The first frequency allocation subelement, for being used the described first frequency allocation of occuring simultaneously the definite described frequency range common factor of definite subelement to described macro base station; Described macro base station terminal comprises:
Macro base station terminal perception unit, for when using up for the frequency spectrum resource of described macro base station mandate, with described macro base station, be perceived as in the frequency spectrum resource scope of described Home eNodeB mandate whether have the frequency range of not used by described Home eNodeB by frequency spectrum detection simultaneously;
Macro base station terminal sensing results transmitting element, if for existing, the result described macro base station terminal perception unit perceived is sent to described macro base station;
Macro base station band information receiving element, for receiving the definite band information of described macro base station.
14. frequency spectrum resource according to claim 10 obtains system, it is characterized in that, described system also comprises the Home eNodeB terminal,
Described Home eNodeB perception unit comprises:
The second frequency spectrum detection subelement, for when using up for the frequency spectrum resource of described Home eNodeB mandate, with described Home eNodeB terminal, be perceived as in the frequency spectrum resource scope of described macro base station mandate whether have the frequency range of not used by described macro base station by frequency spectrum detection simultaneously;
Second occurs simultaneously determines subelement, if for existing, the result that the result described the second frequency spectrum detection subelement perceived and described Home eNodeB terminal perceive is carried out alternately, and determines the frequency range common factor that both perceive;
The second frequency allocation subelement, for being used the described second frequency allocation of occuring simultaneously the definite described frequency range common factor of definite subelement to described Home eNodeB;
Described Home eNodeB terminal comprises:
Home eNodeB terminal perception unit, for when using up for the frequency spectrum resource of described Home eNodeB mandate, with described Home eNodeB, be perceived as in the frequency spectrum resource scope of described macro base station mandate whether have the frequency range of not used by described macro base station by frequency spectrum detection simultaneously;
Home eNodeB terminal sensing results transmitting element, if for existing, the result described Home eNodeB terminal perception unit perceived is sent to described Home eNodeB;
Home eNodeB band information receiving element, for receiving the definite band information of described Home eNodeB.
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