CN101917764B - Method and system for allocating frequency points - Google Patents
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- CN101917764B CN101917764B CN201010251832.2A CN201010251832A CN101917764B CN 101917764 B CN101917764 B CN 101917764B CN 201010251832 A CN201010251832 A CN 201010251832A CN 101917764 B CN101917764 B CN 101917764B
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Abstract
The invention discloses a method and a system for allocating frequency points. Each radio remote unit (RRU) in the same cell is divided into more than two RRU groups. For each frequency point which is not allocated in the cell, the method comprises the following steps of: selecting one RRU group which is matched with the frequency point from the more than two RRU groups, wherein the RRU group which is matched with the frequency point is that the number of allocated frequency points in the RRU group is smaller than the largest frequency point number which can be supported by the RRU group; and allocating the frequency point to all the RRUs in the RRU group which is matched with the frequency point. By adopting the technical scheme of the invention, the cost of enlarging configurable frequency point ranges of cells can be reduced.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method and system that the Remote Radio Unit of same community is carried out to frequency point allocation.
Background technology
At moving communicating field, especially in 3 G mobile communication network, a large amount of distribution-type base station architectures that use, by Remote Radio Unit (RRU, Radio Remote Unit) and baseband processing unit (BBU, Building Base band Unit) base station architecture that connects and composes with optical fiber, in this framework, a BBU can support multiple RRU.Because BBU can be arranged on suitable Host equipment room, and RRU can be arranged on antenna end, therefore, can utilize this mode that BBU is separated with RRU of distribution-type base station architecture, loaded down with trivial details maintenance work is focused on to BBU end, simultaneously, because a BBU can support multiple RRU, therefore, distribution-type base station architecture can also be saved space, the cost of reduction equipment, improves the efficiency of networking.
Distributed base station, before work, all needs RRU to carry out frequency point allocation work, determines the treatable carrier frequency point of each RRU.Fig. 1 is the schematic diagram that prior art is carried out frequency point allocation.As shown in Figure 1, each Digital Signal Processing (DSP in BBU, Digital Signal Processing) equipment produce each carrier frequency point, as the f1 in Fig. 1, f2 and f3, being converged Switching Module is assigned on the each RRU in this community, no matter in this community, have how many RRU, the upper frequency of processing of each RRU is identical, is all frequencies that in this community, the DSP on BBU can produce.In prior art, converging Switching Module is configured carrier wave (Carrier, C) and antenna (Antenna, A), carrier wave can corresponding multiple antennas, antenna also can corresponding multiple carrier waves, and like this, carrier wave one antenna is just a CA, converging Switching Module is configured also and just configures referred to as CA carrier wave and antenna, therefore, prior art, by determining the CA configuration information that converges interactive module, completes the exchanges data between DSP and the each RRU in BBU.
Fig. 2 is the flow chart that prior art is carried out frequency point allocation.As shown in Figure 2, this flow process comprises:
Step 201: take out a frequency, all RRU in Yu Gai community carry out CA configuration one by one.
Here, converge in the carrier frequency point that the DSP of Switching Module from BBU produce and take out one, carry out one by one CA configuration with the each RRU in community.
Step 202: judge that whether CA configuration is successful, if so, return to step 201, otherwise, enter step 203.
Here, be successfully completed if all RRU in this frequency Yu Gai community carry out the work of CA configuration one by one, return to step 201, take out next frequency, all RRU in Jiang Qiyugai community carry out CA configuration one by one.
Step 203: the CA configuration failure of this frequency, is back to BBU by error message, and stops frequency point allocation work.
Here, the CA configuration failure of this frequency, means that this frequency can not be assigned on the each RRU in this community, that is to say, the carrier wave of this frequency that the DSP of the RRU in this community in can not treatments B BU produces, thereby this error message is back to BBU by RRU, and stop frequency point allocation work.
As can be seen here, this method of the RRU in same community being carried out to frequency point allocation of prior art, the carrier frequency point that all RRU in this community are supported is identical, be all frequencies that the DSP in the BBU of this community can produce, therefore, the configurable frequency point ranges in this community, the common factor of the frequency that in Shi Gai community, all RRU support, in the time needing the configurable frequency point ranges in Jiang Gai community to be extended to the common factor that exceedes the frequency that in this community, all RRU support, just need to change all RRU in this community, the cost that so just makes to expand the configurable frequency point ranges in community is high.
Summary of the invention
The invention provides a kind of method of frequency point allocation, utilize the method, can make to expand the cost of the configurable frequency point ranges in community.
The present invention also provides a kind of system of frequency point allocation, utilizes this system, can make to expand the cost of the configurable frequency point ranges in community.
For achieving the above object, technical scheme of the present invention is achieved in that
A method for frequency point allocation, assigns to the each radio frequency remote unit RRU in same community in plural RRU group; For each unappropriated frequency in this community, the method comprises:
From described plural RRU group, select a RRU group of mating with described frequency; The RRU group of wherein, mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group;
Give all RRU in the RRU group of mating with it by described frequency point allocation.
The RRU group of mating with described frequency is further: described frequency is contained in this RRU and organizes in supported band limits.
Each RRU in same RRU group is identical RRU.
If cannot select a RRU group of mating with described frequency from described plural RRU group, the method further comprises: stop the RRU of described community to carry out frequency point allocation.
A system for frequency point allocation, this system comprises: converge Switching Module and the plural RRU group that is arranged in same community, wherein,
Each described RRU group comprises more than one RRU;
The described Switching Module that converges for for each unappropriated frequency of this community, is selected a RRU group of mating with described frequency from described plural RRU group; Give all RRU in the RRU group of mating with it by described frequency point allocation; The RRU group of wherein, mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group.
The described Switching Module that converges comprises: frequency takes out module, RRU group matching module and frequency point allocation module, wherein,
Described frequency takes out module, for taking out the unappropriated frequency in this community, takes out one at every turn, and taken out frequency is sent to described RRU group matching module;
Described RRU group matching module, for selecting a RRU group of mating with described frequency from described plural RRU group; The RRU group of mating with described frequency is notified to described frequency point allocation module; The RRU group of wherein, mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group;
Described frequency point allocation module, for giving described frequency point allocation all RRU of the RRU group of mating with it.
The RRU group of mating with described frequency is further: described frequency is contained in this RRU and organizes in supported band limits.
Each RRU in same RRU group is identical RRU.
The described Switching Module that converges is further used for, if cannot select a RRU group of mating with described frequency from described plural RRU group, stops the RRU of described community to carry out frequency point allocation.
As can be seen here, in the present invention, each RRU in same community is assigned in plural RRU group, like this, when in Dui Gai community, each frequency carries out CA configuration, in each RRU group in can Cong Gai community, select a RRU group of mating with this frequency, the RRU group of mating with this frequency has following feature: this frequency only has the RRU group of a coupling, and the frequency number having distributed in the RRU group of this coupling is less than the supported maximum frequency number of this RRU group, therefore, this frequency point allocation is given after all RRU in the RRU group of mating with it, this frequency has only been assigned to all RRU in the RRU group of mating with it, in this community, remove the arbitrary RRU in the arbitrary RRU group outside the RRU group of mating with this frequency and be not assigned to, the carrier wave of this frequency can only be processed by the RRU in the RRU group of mating with it, and can not be processed by the RRU in other RRU groups, this just makes the union of the frequency that in configurable frequency point ranges Wei Gai community, this community, all RRU support, with respect to prior art, the present invention greatly expands the configurable frequency point ranges in Liao Gai community, in addition, in the time that the configurable frequency point ranges in the further Jiang Gai of needs community is extended to the union that exceedes the frequency that in this community, all RRU support, also only need to increase one or more RRU groups, and do not need to change existing RRU, with respect to prior art, the present invention greatly reduces the cost that expands the configurable frequency point ranges in community.
Brief description of the drawings
Fig. 1 is the schematic diagram that prior art is carried out frequency point allocation;
Fig. 2 is the flow chart that prior art is carried out frequency point allocation;
Fig. 3 is the method flow diagram that the present invention carries out frequency point allocation;
Fig. 4 is the schematic diagram that the present invention carries out frequency point allocation;
Fig. 5 is the carrier frequency point composition schematic diagram in home cell and each RRU group of the present invention after frequency point allocation;
Fig. 6 is the flow chart that the present invention carries out frequency point allocation;
Fig. 7 is the present invention carries out frequency point allocation schematic diagram to processing the RRU of different frequency range in same community;
Fig. 8 is the system construction drawing that the present invention carries out frequency point allocation;
Fig. 9 is the structure chart that converges Switching Module in the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Fig. 3 is the method flow diagram that the present invention carries out frequency point allocation, in the method, the each RRU in same community is assigned in plural RRU group, and as shown in Figure 3, for each unappropriated frequency in this community, the method comprises:
Step 301: select a RRU group of mating with this frequency from this plural RRU group; The RRU group of wherein, mating with this frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group.
Here, the frequency in this community comes from the carrier frequency point that the DSP in BBU produces.
The present invention is each only to be distributed a frequency, distributes a frequency, just starts to distribute next frequency, until all frequencies are all assigned.
The RRU group of mating with this frequency has following two features: first is characterized as each frequency and only has a RRU group matching, and second is characterized as the frequency number having distributed in the RRU group of mating with this frequency and is less than the supported maximum frequency number of this RRU group.If second feature do not meet, the frequency number having distributed in a RRU group equals the supported maximum frequency number of this RRU group, illustrate that this RRU organizes supported frequency number full, can not support new frequency again, this RRU group is not the RRU group of mating with this frequency.
Step 302: give all RRU in the RRU group of mating with it by this frequency point allocation.
Here, this frequency point allocation is given after all RRU in the RRU group of mating with it, this frequency has only been assigned to all RRU in the RRU group of mating with it, in this community, remove the arbitrary RRU in the arbitrary RRU group outside the RRU group of mating with this frequency and be not assigned to, the carrier wave of this frequency can only be processed by the RRU in the RRU group of mating with it, and can not be processed by the RRU in other RRU groups, this just makes the union of the frequency that in configurable frequency point ranges Wei Gai community, this community, all RRU support, with respect to prior art, the present invention greatly expands the configurable frequency point ranges in Liao Gai community, in addition, in the time that the configurable frequency point ranges in the further Jiang Gai of needs community is extended to the union that exceedes the frequency that in this community, all RRU support, also only need to increase one or more RRU groups, and do not need to change existing RRU, with respect to prior art, the present invention greatly reduces the cost that expands the configurable frequency point ranges in community.
Fig. 4 is the schematic diagram that the present invention carries out frequency point allocation.As shown in Figure 4, each carrier frequency point that the each DSP in BBU produces, as the f1 in Fig. 4, f2 and f3, is converged Switching Module to be assigned in the each RRU group in this community, and for example, f1 and f2 are assigned in RRU group 0, and f3 is assigned in RRU group 1.Certainly, can also comprise plural RRU group in this community, the method that the RRU in Dui Gai community carries out frequency point allocation is identical with Fig. 4, does not repeat at this.
Fig. 5 is the carrier frequency point composition schematic diagram in home cell and each RRU group of the present invention after frequency point allocation.As shown in Figure 5, home cell comprises 12 carrier frequency points, and this community comprises two RRU groups, is respectively RRU group 0 and RRU group 1, and wherein, RRU group 0 comprises RRU0 and these two RRU of RRU1, and RRU group 1 only includes this RRU of RRU2.Meanwhile, the carrier frequency point in this community is distributed in F and two frequency ranges of A, and the carrier frequency point that is arranged in F-band has 6, and the carrier frequency point that is arranged in A frequency range also has 6.Like this, in the present invention, each RRU group further has frequency range attribute, and the frequency range attribute of RRU group is used to indicate this RRU and organizes supported band limits.As shown in Figure 5, it is F-band that the frequency range attribute instruction RRU of RRU group 0 organizes 0 supported band limits, it is the carrier wave that RRU in RRU group 0 can only process the frequency that is arranged in F-band, in like manner, it is A frequency range that the frequency range attribute instruction RRU of RRU group 1 organizes 1 supported band limits, and RRU group 1 can only be processed the carrier wave of the frequency that is arranged in A frequency range.Therefore, the frequency that can distribute to RRU group 0 can only be for being positioned at 6 carrier frequency points of F-band, and the frequency that can distribute to RRU group 1 can only be for being positioned at 6 carrier frequency points of A frequency range.The frequency number that is positioned at F-band is herein identical with the frequency number that is positioned at A frequency range, be 6, the present invention is equally applicable to be positioned at the frequency number situation different from the frequency number that is positioned at A frequency range of F-band, equally, also the carrier frequency point being applicable in home cell is distributed in more than two or only has a situation in frequency range, does not repeat at this.
If the frequency in community belongs to different frequency ranges, the RRU group of mating with this frequency is further: this frequency will be contained in this RRU and organize in supported band limits.If a frequency belongs to F-band, this frequency will be distributed to the RRU group that can support F-band.
Fig. 6 is the flow chart that the present invention carries out frequency point allocation.As shown in Figure 6, this flow process comprises:
Step 601: select a RRU group from each RRU group;
Step 602: take out a frequency, carry out CA configuration with the each RRU in the RRU group of selecting in step 601;
Step 603: whether the CA configuration described in determining step 602 is successful, if so, returns to step 602, takes out next frequency, carries out CA configuration with the each RRU in the RRU group of selecting in step 601, otherwise, return to step 601, choose next RRU group.
As can be seen here, the RRU group whether step 603 mates for the frequency taking out with step 602 for the selected RRU of determining step 601 group, if, select the RRU group of mating with next frequency, otherwise, select next RRU group to carry out CA with this frequency and mate, until select the RRU group of mating with this frequency.In addition, after the carrier frequency point of all RRU in a RRU group is assigned, start to configure next RRU group, until all frequencies are all assigned.Like this, prior art becomes a special case of the present invention, the special case while only having a RRU group in Ji Gai community.
Fig. 7 is the present invention carries out frequency point allocation schematic diagram to processing the RRU of different frequency range in same community.As shown in Figure 7, the each carrier frequency point producing in BBU, as f1 to f6, being converged Switching Module is assigned in the RRU group 0 and RRU group 1 these two RRU groups in this community, wherein, 0 processing of RRU group is positioned at the f1 of F-band, f2 and f3, and can not process the f4 that is positioned at A frequency range, f5 and f6, be about to be positioned at the f1 of F-band, these three frequency point allocation of f2 and f3 are to all RRU in RRU group 0, be RRU0 to RRUn, equally, 1 processing of RRU group is positioned at the f4 of A frequency range, f5 and f6, and can not process the f1 that is positioned at F-band, f2 and f3, be about to be positioned at the f4 of A frequency range, these three frequency point allocation of f5 and f6 are to all RRU in RRU group 1, be RRUn+1 to RRUn+m.Equally, the frequency range that the present invention is also applicable to the frequency place that BBU produces exceedes two or be only the situation of, and RRU group in this community exceedes two or be only the situation of, does not repeat at this.
In the present invention, the each RRU in same RRU group is identical RRU, this means that the frequency that the each RRU in same RRU group is assigned to is also in full accord, and the residing band limits of the treatable frequency of institute is in full accord.
If the RRU group that step 302 cannot select a conduct to mate with this frequency from this plural RRU group, each RRU group all cannot be processed the carrier wave of this frequency, and the method further comprises: stop the RRU of community to carry out frequency point allocation.Now, also can will cannot from each RRU group, select the message as the RRU group of mating with this frequency to be sent to BBU.
Fig. 8 is the system construction drawing that the present invention carries out frequency point allocation.As shown in Figure 8, this system comprises: converge Switching Module 801 and the plural RRU group 802 that is arranged in same community, wherein,
Each described RRU group 802 comprises more than one RRU;
The described Switching Module 801 that converges for for each unappropriated frequency of this community, is selected a RRU group 802 of mating with this frequency from above-mentioned plural RRU group 802; This frequency point allocation is given to all RRU in the RRU group 802 of mating with it; The RRU group 802 of wherein, mating with this frequency is: the frequency number having distributed in this RRU group 802 is less than this RRU and organizes 802 supported maximum frequency numbers.
Fig. 9 is the structure chart that converges Switching Module in the present invention.As shown in Figure 9, converge Switching Module 801 and comprise: frequency takes out module 901, RRU group matching module 902 and frequency point allocation module 903, wherein,
Frequency takes out module 901, for taking out the unappropriated frequency in this community, takes out one at every turn, and taken out frequency is sent to RRU group matching module 902;
RRU organizes matching module 902, for select a RRU group of mating with this frequency from the above-mentioned plural RRU group in community, the coupling RRU group of this frequency is notified to frequency point allocation module 903; The RRU group of mating with this frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group;
Frequency point allocation module 903, for giving this frequency point allocation all RRU of the RRU group of mating with it.
If the different frequent points producing in BBU is distributed in different frequency ranges, each RRU group further comprises the frequency range attribute of this RRU group, and the frequency range attribute of RRU group is used to indicate this RRU and organizes the affiliated frequency range of supported frequency;
The RRU group of mating with this frequency is further: this frequency is contained in this RRU and organizes in supported band limits.Like this, RRU group matching module 902 in Fig. 9 is further used for, judge that frequency takes out this indicated RRU of frequency range the attribute whether frequency that takes out of module 901 be contained in each RRU group and organizes in supported band limits, if, the frequency range using this RRU group as this frequency allows RRU group, otherwise, this RRU group is forbidden to RRU group as the frequency range of this frequency; Like this, the selected RRU group of mating with this frequency of RRU group matching module 902 must ensure to allow in RRU group in the frequency range of this frequency.
In native system, the each RRU in same RRU group is identical RRU, this means that the frequency that the each RRU in same RRU group is assigned to is in full accord, and the residing band limits of the treatable frequency of institute is also in full accord.
As can be seen here, tool of the present invention has the following advantages:
(1) in the present invention, each RRU in same community is assigned in plural RRU group, like this, when in Dui Gai community, each frequency carries out CA configuration, in each RRU group in can Cong Gai community, select a RRU group of mating with this frequency, the RRU group of mating with this frequency has following feature: this frequency only has the RRU group of a coupling, and the frequency number having distributed in the RRU group of this coupling is less than the supported maximum frequency number of this RRU group, therefore, this frequency point allocation is given after all RRU in the RRU group of mating with it, this frequency has only been assigned to all RRU in the RRU group of mating with it, in this community, remove the arbitrary RRU in the arbitrary RRU group outside the RRU group of mating with this frequency and be not assigned to, the carrier wave of this frequency can only be processed by the RRU in the RRU group of mating with it, and can not be processed by the RRU in other RRU groups, this just makes the union of the frequency that in configurable frequency point ranges Wei Gai community, this community, all RRU support, with respect to prior art, the present invention greatly expands the configurable frequency point ranges in Liao Gai community, in addition, in the time that the configurable frequency point ranges in the further Jiang Gai of needs community is extended to the union that exceedes the frequency that in this community, all RRU support, also only need to increase one or more RRU groups, and do not need to change existing RRU, with respect to prior art, the present invention greatly reduces the cost that expands the configurable frequency point ranges in community.
(2), in the present invention, because each RRU group has the such attribute of self supported maximum frequency number, therefore, the present invention can utilize this attribute of RRU group, the frequency points of distributing on each RRU in this community of flexible configuration.
(3) in the present invention, because each RRU group has self supported band limits, therefore, the present invention can utilize each RRU to organize supported band limits, by frequency point allocation to supporting in the RRU group of the frequency range under self, like this, if F need to be supported in Yi Ge community, A, the frequency of tri-frequency ranges of E, can be by the frequency point allocation of same frequency range to same RRU group, or in the identical multiple RRU groups of band limits of supporting, therefore, in the time that the band limits that community need to be supported is extended to the union that exceeds the band limits that in this community, all RRU support, only need to set up one or more new RRU groups, make its band limits comprise the union that exceeds the band limits that in this community, all RRU support, so just further greatly reduce the cost that expands the configurable frequency point ranges in community.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (5)
1. a method for frequency point allocation, is characterized in that, the each radio frequency remote unit RRU in same community is assigned in plural RRU group, and the each RRU in same RRU group is identical RRU; For each unappropriated frequency in this community, the method comprises:
From described plural RRU group, select a RRU group of mating with described frequency; Wherein, the RRU group of mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group, and described frequency is contained in this RRU and organizes in supported band limits;
Give all RRU in the RRU group of mating with it by described frequency point allocation.
2. method according to claim 1, is characterized in that, if cannot select a RRU group of mating with described frequency from described plural RRU group, the method further comprises: stop the RRU of described community to carry out frequency point allocation.
3. a system for frequency point allocation, is characterized in that, this system comprises: converge Switching Module and the plural RRU group that is arranged in same community, wherein,
Each described RRU group comprises more than one RRU, and the each RRU in same RRU group is identical RRU;
The described Switching Module that converges for for each unappropriated frequency of this community, is selected a RRU group of mating with described frequency from described plural RRU group; Give all RRU in the RRU group of mating with it by described frequency point allocation; Wherein, the RRU group of mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group, and described frequency is contained in this RRU and organizes in supported band limits.
4. system according to claim 3, is characterized in that, described in converge Switching Module and comprise: frequency takes out module, RRU group matching module and frequency point allocation module, wherein,
Described frequency takes out module, for taking out the unappropriated frequency in this community, takes out one at every turn, and taken out frequency is sent to described RRU group matching module;
Described RRU group matching module, for selecting a RRU group of mating with described frequency from described plural RRU group; The RRU group of mating with described frequency is notified to described frequency point allocation module; Wherein, the RRU group of mating with described frequency is: the frequency number having distributed in this RRU group is less than the supported maximum frequency number of this RRU group, and described frequency is contained in this RRU and organizes in supported band limits;
Described frequency point allocation module, for giving described frequency point allocation all RRU of the RRU group of mating with it.
5. system according to claim 3, is characterized in that,
The described Switching Module that converges is further used for, if cannot select a RRU group of mating with described frequency from described plural RRU group, stops the RRU of described community to carry out frequency point allocation.
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| WO2012145892A1 (en) * | 2011-04-26 | 2012-11-01 | 富士通株式会社 | Access method, base station and user equipment |
| CN103763712B (en) * | 2013-12-24 | 2017-06-06 | 华为技术有限公司 | A kind of method of carrier configuration, apparatus and system |
| CN106332304A (en) * | 2015-06-30 | 2017-01-11 | 成都鼎桥通信技术有限公司 | Carrier wave establishment method and device |
| CN113099519A (en) * | 2020-01-09 | 2021-07-09 | 华为技术有限公司 | Base station control method, operation support system 0SS and distributed base station system DBS |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188453A (en) * | 2006-11-20 | 2008-05-28 | 阿尔卡特朗讯 | Method and system for wireless cellular indoor communications |
| CN101426211A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Wireless access network frequency using method used for distributed base station constitution |
| CN201467115U (en) * | 2009-07-08 | 2010-05-12 | 鼎桥通信技术有限公司 | Antenna subsystem |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188453A (en) * | 2006-11-20 | 2008-05-28 | 阿尔卡特朗讯 | Method and system for wireless cellular indoor communications |
| CN101426211A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Wireless access network frequency using method used for distributed base station constitution |
| CN201467115U (en) * | 2009-07-08 | 2010-05-12 | 鼎桥通信技术有限公司 | Antenna subsystem |
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