CN104284428A - System resource allocating method based on three-dimensional active antenna - Google Patents
System resource allocating method based on three-dimensional active antenna Download PDFInfo
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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Abstract
The invention provides a system resource allocating method based on a three-dimensional active antenna. The system resource allocating method comprises the steps that a service base station acquires three-dimensional active antenna information suitable for being adopted during communication with users; the service base station carries out system resource allocation on a local cell according to the three-dimensional active antenna information suitable for being adopted during communication with the users and the load information of the users; the service base station carries out data transmission on the users in the local cell through the corresponding system resource; the service base station transmits the system resource using information including the three-dimensional active antenna information of the local cell to peripheral base stations and acquires the system resource using information of peripheral base station cells from the peripheral base stations; the service base station carries out adjustment allocation on the system resource using through the load distribution of the users in the local cell after acquiring the system resource using information of the peripheral base stations, and edge users of the local cell and the edge users of the peripheral base stations can use the different resources. According to the system resource allocating method, inter-cell interference can be avoided, and the system resource allocation can be optimized.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the networking technology area of the base station composition of three-dimensional active antenna, be specially a kind of method for distributing system resource based on three-dimensional active antenna.
Background technology
In the mobile communication system in future, number of users sharply increases, and the message volume of user sharply increases.Multi-antenna technology, owing to can obtain higher performance gain and band efficiency, thus becomes one of important technical of reply future mobile communication system mass data business.The antenna number that multi-antenna technology needs base station end to configure is more, and traditional bidimensional active antenna (2D) configuration more and more can not meet the demand of user, thus introduces the array antenna design demand to three-dimensional active antenna (3D).At present, 3GPP LTE-A has started the research project to 3D active antenna channel model.
Traditional 2D active antenna can carry out the adjustment of beam direction in horizontal dimensions, is adopt fixing angle of declination to send this community user of quorum sensing inhibitor in vertical dimensions; 3D active antenna, not only can carry out beam direction adjustment in horizontal dimensions, can also carry out the adjustment of beam direction in vertical dimensions.Fig. 1 is the schematic diagram of traditional 2D active antenna serving cell users, is specially two-dimentional active antenna vertical dimension wave beam schematic diagram, and for the user of diverse location in community, 2D active antenna can only adopt a fixing vertical dimension direction angle of declination to serve.Fig. 2 is a schematic diagram of 3D active antenna serving cell users, and be specially three-dimensional active antennas orthogonal dimension wave beam schematic diagram, to the user of diverse location, 3D active antenna likely adopts different vertical dimension direction angle of declinations to serve.
Because 3D active antenna is less in the angle adjustment scope of vertical dimension, thus can adopt a kind of simple mode, the base station namely adopting 3D active antenna is the service of this community user by the mode of several fixing angle of declination.Fig. 3 is shown as in prior art the base station networking exemplary plot adopting three-dimensional active antenna, and Fig. 3 shows an example after the base station networking of the fixing angle of declination service-user of employing two.In figure, eNB1 and eNB2 represents two base stations respectively, UE1 and UE2 belongs to eNB1, UE3 and UE4 belongs to eNB2.The inner ring user of angle of declination 1 coverage cell, the outer ring user of angle of declination 2 coverage cell.The system resource that two cell reuse are identical.
Base station is the resource that the different user of different angle of declination service distributes is different.Multiplexing system resource can be divided into resource 1 and resource 2 for Fig. 3, eNB1 and eNB2, distribute to the user of two angle of declination services respectively.In order to make the system interference level after networking controlled, but not strong jamming each other, two base stations can cooperate mutually, reasonably for the user of different angle of declination service distributes suitable resource.
In existing 3GPP LTE standard, network interferences coordination technique scheme is all the network adopting 2D active antenna for base station.At present, 3GPP LTE standard process has just begun one's study the channel model of 3D active antenna, not yet begins one's study to 3D active antenna base station networking performance.
In the network be made up of 2D active antenna base station, by adopting the method for different down transmitting power on different resource, base station can determine that the transmitting power in which resource is comparatively large, can cover the edge customer of this community, and may produce strong jamming to the edge customer of neighbor cell.In order to carry out Inter-Cell Interference Coordination, base station is facilitated more reasonably in different frequency resource, to distribute power, RNTP(Relative Narrowband Transmit Power mutual is between the base stations provided with in LTE standard) signaling, whether the transmitting power of this base station on different resource is exceeded certain thresholding, and this threshold information informs adjacent base station.
In the scene of 3D active antenna base station networking, as shown in Figure 3, base station is that the user that different vertical dimension angle of declination covers distributes different system resource.Thus, in some system resource, due to the employing of certain angle of declination, the signal strength signal intensity of Base Transmitter can arrive this Cell Edge User, and may produce strong jamming to the edge customer of neighbor cell.And for other system resource, due to the employing of corresponding angle of declination, regardless of the signal strength signal intensity of Base Transmitter, this signal all can not arrive the edge of this community, more comparatively strong jamming can not be produced to the edge customer of neighbor cell.For the user being assigned with these system resources, base station can adopt high transmit power to improve system data throughput, and need not worry produce strong jamming to neighbor cell edge customer.As can be seen here, the system resource allocation technology adopted in current LTE technical standard cannot directly apply in 3D active antenna base station networking, needs to study system resource allocation technology that is new, suitable 3D active antenna base station networking.
And for the network that the base station of employing 3D active antenna as shown in Figure 3 forms, how base station cooperates is avoided mutual interference, be reasonably the user resource allocation that 3D active antenna covers, become this area problem demanding prompt solution to make systematic function optimum.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of method for distributing system resource based on three-dimensional active antenna, for solve adopt 3D active antenna base station networking after how to cooperate and avoid the problem that user that interference mutually thinks that 3D active antenna each dimension in this community covers distributes various system resource.
Realize above-mentioned purpose and other relevant objects, the invention provides a kind of method for distributing system resource based on three-dimensional active antenna, be applied in the Radio Network System of the base station composition being furnished with three-dimensional active antenna, described method comprises: serving BS obtains and the three-dimensional active aerial information being applicable to during telex network adopting; Serving BS carries out system resource allocation with the load information of the three-dimensional active aerial information being applicable to during each telex network adopting and user to this community according to what obtain; Serving BS adopts corresponding system resource to carry out transfer of data to this community user; The system resource comprising three-dimensional active aerial information of this community uses information transmission to peripheral base station and obtains the system resource use information of this peripheral base station community from described peripheral base station by serving BS; Again in conjunction with this community user load Distribution after the system resource use information of serving BS acquisition peripheral base station, the adjustment carrying out system resource use distributes, and the edge customer of Shi Zhe community uses different resources from the edge customer of peripheral base station community.
As a preferred embodiment of the present invention, serving BS obtains and with the mode being applicable to the three-dimensional active aerial information adopted during telex network is: according to the up transmission signal of user, serving BS carries out channel measurement and therefrom extracts and the three-dimensional active aerial information being applicable to during telex network adopting.
As a preferred embodiment of the present invention, described channel measurement comprise the vertical dimension to signal angular surveying, to the angular surveying of horizontal dimension or the measurement of three-dimensional active antenna channel.
As a preferred embodiment of the present invention, serving BS obtains and to the mode of the three-dimensional active aerial information being applicable to during telex network adopting is: user carries out channel measurement according to the downstream signal of serving BS and therefrom extracts the information relevant with three-dimensional active antenna and by above-mentioned information feed back to serving BS.
As a preferred embodiment of the present invention, the information that the dimension angle that described three-dimensional active aerial information comprises three-dimensional active antenna is correlated with or the suitable Vector Message be carried on serving BS three-dimensional active bay.
As a preferred embodiment of the present invention, described system resource specifically comprises: the active antenna vertical dimension angle that serving BS uses or vertical dimension load vector, horizontal dimension angle or horizontal dimension and load vector, time-domain resource, frequency domain resource, power resource.
As a preferred embodiment of the present invention, when the system resource of serving base station cell uses information to have a renewal, the system resource after upgrading uses information to send to peripheral base station by serving BS.
The method that described peripheral base station obtains the three-dimensional active aerial information of this peripheral base station community user is identical with the method that described serving BS obtains three-dimensional active aerial information.
As a preferred embodiment of the present invention, in conjunction with this community user load Distribution after the system asset information of peripheral base station acquisition serving BS, the adjustment carrying out system resource use distributes.
As mentioned above, a kind of method for distributing system resource based on three-dimensional active antenna of the present invention, has following beneficial effect:
The present invention proposes the system resource allocation scheme based on the networking of three-dimensional active antenna base station, the information relevant to three-dimensional active antenna of reporting from this serving BS signal is measured by user, or the information measurement relevant to three-dimensional active antenna that serving BS carries out uplink user signal, serving BS can grasp the information relevant to three-dimensional active antenna of all users in this community, serving BS is again in conjunction with the load information of each user, reasonably carry out the system resource allocation of this community, and and then the whole system resource information that this serving BS is used mutual with contiguous peripheral base station, presence of intercell interference is avoided to reach, the object of optimization system Resourse Distribute, and the present invention can improve throughput and the edge user throughput of whole group network system.
Accompanying drawing explanation
Fig. 1 is shown as two-dimentional active antenna vertical dimension wave beam schematic diagram of the prior art.
Fig. 2 is shown as three-dimensional active antennas orthogonal dimension wave beam schematic diagram in prior art.
Fig. 3 is shown as in prior art the base station networking exemplary plot adopting three-dimensional active antenna.
Fig. 4 is shown as the flow chart schematic diagram of a kind of method for distributing system resource based on three-dimensional active antenna of the present invention.
Fig. 5 is shown as the another kind of flow chart schematic diagram of a kind of method for distributing system resource based on three-dimensional active antenna of the present invention.
Fig. 6 is shown as the Resourse Distribute exemplary plot of a kind of method for distributing system resource based on three-dimensional active antenna of the present invention.
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Is for the network of the base station composition of employing 3D active antenna as shown in Figure 3 in prior art, how base station cooperates avoided mutual interference, be reasonably the user resource allocation of the different angle of declination covering in this community? The present invention gives solution.
As shown in Figures 4 to 6, the object of the present invention is to provide a kind of method for distributing system resource based on three-dimensional active antenna, technical problem solved by the invention is as follows: after adopting the base station networking of 3D active antenna, how being the user that 3D active antenna each dimension in this community covers distributes various system resource, both the average throughput of this community and the throughput of edge customer is improved to reach, reduce again the object of the interference to neighbor cell edge customer, thus improve throughput and the edge user throughput of whole group network system.To principle and the execution mode of a kind of method for distributing system resource based on three-dimensional active antenna of the present invention be elaborated below, and make those skilled in the art not need creative work can understand a kind of method for distributing system resource based on three-dimensional active antenna of the present invention.
The present invention proposes to need mutual each base station between base station to use information to the system resource including source antenna characteristic information.Here system resource includes active antenna vertical dimension resource (angle or load vector) that base station uses, active antenna horizontal dimension resource (angle or load vector), time-domain resource, frequency domain resource, power resource etc., be not limited to the above resource, as long as the resource that base station uses all is included within the scope of system resource of the present invention.After base station and the mutual system resource use information of peripheral base station, facilitate peripheral base station reasonably to distribute the system resource of this community, avoid presence of intercell interference, optimized system performance.
The invention provides a kind of method for distributing system resource based on three-dimensional active antenna, be applied in the Radio Network System of the base station composition being furnished with three-dimensional active antenna, described method specifically comprises:
Serving BS obtains and the three-dimensional active aerial information being applicable to during telex network adopting.Particularly, in the present embodiment, the information that the dimension angle that described three-dimensional active aerial information comprises three-dimensional active antenna is correlated with or the suitable Vector Message be carried on serving BS three-dimensional active bay.But be not limited to above-mentioned information, the information of all embodiment three-dimensional active antenna features all should be included in the scope of the three-dimensional active aerial information described in the present invention.
Meanwhile, in the present embodiment, serving BS obtains and comprises following two kinds with the mode being applicable to the three-dimensional active aerial information adopted during telex network, and any one mode of the optional following two kinds of modes of those skilled in the art obtains three-dimensional active aerial information.
1) according to the up transmission signal of user, serving BS carries out channel measurement and therefrom extracts and the three-dimensional active aerial information being applicable to during telex network adopting.Described channel measurement comprise the vertical dimension to signal angular surveying, to the angular surveying of horizontal dimension or the measurement of three-dimensional active antenna channel.
Here, the information that the dimension angle that described three-dimensional active aerial information comprises three-dimensional active antenna is correlated with or the suitable Vector Message be carried on serving BS three-dimensional active bay.But be not limited to above-mentioned information, the information of all embodiment three-dimensional active antenna features all should be included in the scope of the three-dimensional active aerial information described in the present invention.
2) user carries out channel measurement according to the downstream signal of serving BS and therefrom extracts the information relevant to three-dimensional active antenna and by above-mentioned information feed back to serving BS.Described channel measurement comprise the vertical dimension to signal angular surveying, to the angular surveying of horizontal dimension or the measurement of three-dimensional active antenna channel.
Here, the information that the dimension angle that described three-dimensional active aerial information comprises three-dimensional active antenna is correlated with or the suitable Vector Message be carried on serving BS three-dimensional active bay.But be not limited to above-mentioned information, the information of all embodiment three-dimensional active antenna features all should be included in the scope of the three-dimensional active aerial information described in the present invention.
After serving BS obtains system resource use information, serving BS uses the load information of information and each user to carry out system resource allocation to this community according to the system resource obtained.Here, the described system resource of three-dimensional active antenna specifically comprises: the active antenna vertical dimension angle that serving BS uses or vertical dimension load vector, horizontal dimension angle or horizontal dimension and load the information such as vector, time-domain resource, frequency domain resource, power resource, but are not limited to above-mentioned information.
Afterwards, serving BS adopts corresponding system resource to carry out transfer of data to this community user; The system resource of this community uses information transmission to peripheral base station and obtains the system resource use information of this peripheral base station community from described peripheral base station by serving BS.Here, serving BS adopts corresponding system resource to carry out transfer of data to this community user and the system resource of this community uses information transmission not have execution sequence successively to peripheral base station by serving BS, can carry out simultaneously, one also can be selected first to perform.
Meanwhile, to obtain the method for the three-dimensional active aerial information of this peripheral base station community user identical with the method that described serving BS obtains three-dimensional active aerial information for described peripheral base station.
Again in conjunction with this community user load Distribution after the system resource use information of serving BS acquisition peripheral base station, the adjustment carrying out system resource use distributes, the edge customer of Shi Zhe community uses different resources from the edge customer of peripheral base station, avoid presence of intercell interference, most optimally use system resource.
Afterwards, if when the system resource of serving base station cell uses information to have a renewal, the system resource after upgrading uses information to send to peripheral base station by serving BS.
In conjunction with this community user load Distribution after the system resource use information of peripheral base station acquisition serving BS, the adjustment carrying out system resource use distributes, the edge customer of Shi Zhe community uses different resources from the edge customer of peripheral base station, avoid presence of intercell interference, most optimally use system resource.
Particularly, the present invention is by the following two kinds measurement scheme, serving BS can obtain the loading conditions in each dimension coverage of this community active antenna, thus can be reasonably the user allocation system resource that each dimension covers, and and then system resource service condition and peripheral base station that this community is comprising each dimension resource of antenna be carried out alternately.By this information interaction, each base station can use the system resource of this community further and adjust, and to reach the object of reasonable employment system resource, systematic function optimum, improves the systematic function of 3D active antenna network.
Scheme one: the system resource allocation scheme that base station side is measured, as shown in Figure 4, in Fig. 4, UE represents community user to workflow, eNB1 and eNB2 represents serving BS and peripheral base station respectively.
Step S11: according to the up transmission signal of user, serving BS carries out channel measurement, therefrom extracts the information relevant to three-dimensional active antenna.
Step S12: serving BS according to the information relevant to three-dimensional active antenna from all service-user signals, and in conjunction with the load information of each user, reasonably carries out this cell system Resourse Distribute.
Step S13: serving BS adopts corresponding system resource to carry out transfer of data to this community user.
Step S14: peripheral base station is given at whole system resource using information in this community by serving BS alternately.
Step S15: serving BS in conjunction with this community user load Distribution, carries out the adjustment of system resource use after obtaining the system resource use information of peripheral base station, to make systematic function optimum.If the system resource of this community uses information to have renewal, need to carry out alternately with peripheral base station again.
Be worth propose, in the flow process shown in Fig. 4, step S13 and step S14 do not have must precedence, two steps can be carried out simultaneously, also can carry out before step S13 by step S14.
Scheme two: the system resource allocation scheme that user side is measured, as shown in Figure 5, in Fig. 5, UE represents community user to workflow diagram, eNB1 and eNB2 represents serving BS and peripheral base station respectively.
Step S21: user is for the measurement of 3D active antenna relevant information and feedback.User measures base station to the channel conditions of user self according to the downstream signal of serving BS, extracts the information relevant to three-dimensional active antenna, and by this information feed back to serving BS.In this step S21, measuring the result of reporting is allow base station obtain the suitable three-dimensional active aerial information that can adopt this user, so that serving BS uses three-dimensional active antenna to carry out more effective transfer of data to this user, as long as base station thus can be made to obtain or the user that extracts or map out this information measures and should comprise in the step s 21 with reporting.
Step S22: serving BS, according to the dimensional antenna information of all service-users, in conjunction with the load information of each user, reasonably carries out the system resource allocation of this community.
Step S23: serving BS adopts corresponding system resource to carry out transfer of data to this community user.
Step S24: serving BS is mutual to peripheral base station in the transmission of whole system resource using information by this community, and the system resource use information receiving peripheral base station from peripheral base station.
Step S25: serving BS in conjunction with this community user load Distribution, carries out the adjustment of system resource use after obtaining the system resource use information of peripheral base station, to make systematic function optimum.If the system resource of serving base station cell uses information to have renewal, need to carry out alternately with peripheral base station again.
Consistent with base station side measurement scheme, in the flow process shown in Fig. 5, step S23 and step S24 do not have must precedence, two steps can be carried out simultaneously, also can carry out before step S23 by step S24.
The effect implementing one of above-mentioned two schemes can be shown as the Resourse Distribute exemplary plot of a kind of method for distributing system resource based on three-dimensional active antenna of the present invention with reference to figure 6, Fig. 6.
In figure 6, eNB1 is the inner ring user resource allocation 1 adopting angle of declination 1, for adopting the outer ring user resource allocation 2 of angle of declination 2; ENB2 is the inner ring user resource allocation 2 adopting angle of declination 1, for adopting the outer ring user resource allocation 1 of angle of declination 2.As can see from Figure 6, be positioned at the user of eNB1 and eNB2 cell edge, as UE2, UE3 in Fig. 6, owing to employing different resource, thus avoid mutual interference.
In sum, a kind of method for distributing system resource based on three-dimensional active antenna of the present invention, reaches following beneficial effect:
The present invention proposes the system resource allocation scheme based on the networking of three-dimensional active antenna base station, the information relevant to three-dimensional active antenna of reporting from this serving BS signal is measured by user, or the information measurement relevant to three-dimensional active antenna that serving BS carries out uplink user signal, serving BS can grasp the information relevant to three-dimensional active antenna of all users in this community, serving BS is again in conjunction with the load information of each user, reasonably carry out the system resource allocation of this community, and and then the whole system resource information that this serving BS is used mutual with contiguous peripheral base station, presence of intercell interference is avoided to reach, the object of optimization system Resourse Distribute, and the present invention can improve throughput and the edge user throughput of whole group network system.
So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1., based on a method for distributing system resource for three-dimensional active antenna, be applied in the Radio Network System of the base station composition being furnished with three-dimensional active antenna, it is characterized in that, described method comprises:
Serving BS obtains and the three-dimensional active aerial information being applicable to during telex network adopting;
Serving BS carries out system resource allocation with the load information of the three-dimensional active aerial information being applicable to during each telex network adopting and user to this community according to what obtain;
Serving BS adopts corresponding system resource to carry out transfer of data to this community user;
The system resource comprising three-dimensional active aerial information of this community uses information transmission to peripheral base station and obtains the system resource use information of this peripheral base station community from described peripheral base station by serving BS;
Again in conjunction with this community user load Distribution after the system resource use information of serving BS acquisition peripheral base station, the adjustment carrying out system resource use distributes, and the edge customer of Shi Zhe community uses different resources from the edge customer of peripheral base station community.
2. the method for distributing system resource based on three-dimensional active antenna according to claim 1, it is characterized in that, serving BS obtains and with the mode being applicable to the three-dimensional active aerial information adopted during telex network is: according to the up transmission signal of user, serving BS carries out channel measurement and therefrom extracts and the three-dimensional active aerial information being applicable to during telex network adopting.
3. the method for distributing system resource based on three-dimensional active antenna according to claim 2, is characterized in that, described channel measurement comprise the vertical dimension to signal angular surveying, to the angular surveying of horizontal dimension or the measurement of three-dimensional active antenna channel.
4. the method for distributing system resource based on three-dimensional active antenna according to claim 1, it is characterized in that, serving BS obtains and to the mode of the three-dimensional active aerial information being applicable to during telex network adopting is: user carries out channel measurement according to the downstream signal of serving BS and therefrom extracts the information relevant with three-dimensional active antenna and by above-mentioned information feed back to serving BS.
5. the method for distributing system resource based on three-dimensional active antenna according to claim 1,2 or 4, it is characterized in that, the information that the dimension angle that described three-dimensional active aerial information comprises three-dimensional active antenna is correlated with or the suitable Vector Message be carried on serving BS three-dimensional active bay.
6. the method for distributing system resource based on three-dimensional active antenna according to claim 1, it is characterized in that, described system resource specifically comprises: the active antenna vertical dimension angle that serving BS uses or vertical dimension load vector, horizontal dimension angle or horizontal dimension and load vector, time-domain resource, frequency domain resource, power resource.
7. the method for distributing system resource based on three-dimensional active antenna according to claim 1, is characterized in that, when the system resource of serving base station cell uses information to have a renewal, the system resource after upgrading uses information to send to peripheral base station by serving BS.
8. the method for distributing system resource based on three-dimensional active antenna according to claim 1,2 or 4, it is characterized in that, the method that described peripheral base station obtains the three-dimensional active aerial information of this peripheral base station community user is identical with the method that described serving BS obtains three-dimensional active aerial information.
9. the method for distributing system resource based on three-dimensional active antenna according to claim 8, is characterized in that, in conjunction with this community user load Distribution after the system asset information of peripheral base station acquisition serving BS, the adjustment carrying out system resource use distributes.
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Application publication date: 20150114 |