CN101917764A - Method and system for allocating frequency points - Google Patents
Method and system for allocating frequency points Download PDFInfo
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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 sub-district is carried out frequency point allocation.
Background technology
At moving communicating field, especially in the 3G (Third Generation) Moblie network, a large amount of distributed base station frameworks that use, promptly 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 a plurality of RRU.Because BBU can be installed in suitable machine room position, and RRU can be installed in antenna end, therefore, can utilize this mode that BBU is separated with RRU of distributed base station framework, loaded down with trivial details maintenance work is focused on the BBU end, simultaneously, because a BBU can support a plurality of RRU, therefore, the distributed base station framework can also be saved the space, the cost of reduction equipment improves the efficient of networking.
Distributed base station all needed RRU is carried out frequency point allocation work before work, promptly determined the treatable carrier frequency point of each RRU.Fig. 1 carries out the schematic diagram of frequency point allocation for prior art.As shown in Figure 1, each Digital Signal Processing (DSP among the BBU, Digital Signal Processing) each carrier frequency point of equipment generation, as the f1 among Fig. 1, f2 and f3, being converged Switching Module is assigned on each RRU in this sub-district, no matter in this sub-district what RRU are arranged, it is all identical that each RRU goes up the frequency of handling, and is all frequencies that the DSP on the BBU can produce in this sub-district.In the prior art, converge Switching Module to carrier wave (Carrier, C) and antenna (Antenna A) is configured, carrier wave can corresponding a plurality of antennas, antenna also can corresponding a plurality of carrier waves, and like this, a carrier wave one antenna just is a CA, converging Switching Module is configured carrier wave and antenna and also just abbreviates the CA configuration as, therefore, prior art is by determining to converge the CA configuration information of interactive module, finishes DSP among the BBU and the exchanges data between each RRU.
Fig. 2 carries out the flow chart of frequency point allocation for prior art.As shown in Figure 2, this flow process comprises:
Step 201: take out a frequency, carry out the CA configuration one by one with all RRU in this sub-district.
Here, converge in the carrier frequency point that the DSP of Switching Module from BBU produce and take out one, carry out the CA configuration one by one with each RRU in the sub-district.
Step 202: judge whether the CA configuration is successful, if, then return step 201, otherwise, step 203 entered.
Here, complete successfully, then return step 201, take out next frequency, all RRU in its and this sub-district are carried out CA one by one dispose if all RRU in this frequency and this sub-district carry out the work of CA configuration one by one.
Step 203: the CA configuration failure of this frequency then is back to BBU with 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 each RRU in this sub-district, that is to say, the carrier wave of this frequency that DSP produced of the RRU in this sub-district in can not treatments B BU, thereby RRU is back to BBU with this error message, and stop frequency point allocation work.
This shows, this method of the RRU in the same sub-district being carried out frequency point allocation of prior art, make that the carrier frequency point that all RRU supported in this sub-district is identical, be all frequencies that the DSP among the BBU of this sub-district can produce, therefore, the configurable frequency point ranges in this sub-district, it is the common factor of the frequency that all RRU supported in this sub-district, when needs are extended to the configurable frequency point ranges in this sub-district common factor above the frequency that all RRU supported in this sub-district, just need to change all RRU in this sub-district, so just make that the cost that enlarges the configurable frequency point ranges in sub-district is high.
Summary of the invention
The invention provides a kind of method of frequency point allocation, utilize this method, the cost that enlarges the configurable frequency point ranges in sub-district is reduced.
The present invention also provides a kind of system of frequency point allocation, utilizes this system, and the cost that enlarges the configurable frequency point ranges in sub-district is reduced.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of frequency point allocation is assigned to each radio frequency remote unit RRU in the same sub-district in the plural RRU group; For each unappropriated frequency in this sub-district, this method comprises:
From described plural RRU group, select a RRU to organize with described frequency coupling; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU;
Give all RRU in the RRU group with its coupling with described frequency point allocation.
With the RRU group of described frequency coupling further be: described frequency is contained in this RRU and organizes in the supported band limits.
Each RRU in the same RRU group is identical RRU.
If can't select a RRU with described frequency coupling to organize from described plural RRU group, then this method further comprises: stop the RRU of described sub-district is carried out frequency point allocation.
A kind of system of frequency point allocation, this system comprises: converge Switching Module and the plural RRU group that is arranged in same sub-district, wherein,
Each described RRU group comprises more than one RRU;
The described Switching Module that converges is used for for each unappropriated frequency of this sub-district, selects a RRU with described frequency coupling to organize from described plural RRU group; Give all RRU in the RRU group with its coupling with described frequency point allocation; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU.
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, is used for taking out the unappropriated frequency in this sub-district, takes out one at every turn, and the frequency that is taken out is sent to described RRU group matching module;
Described RRU group matching module is used for selecting a RRU with described frequency coupling to organize from described plural RRU group; To be notified to described frequency point allocation module with the RRU group of described frequency coupling; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU;
Described frequency point allocation module is used for all RRU that described frequency point allocation is organized to the RRU with its coupling.
With the RRU group of described frequency coupling further be: described frequency is contained in this RRU and organizes in the supported band limits.
Each RRU in the same RRU group is identical RRU.
The described Switching Module that converges is further used for, if can't select a RRU with described frequency coupling to organize from described plural RRU group, then stops the RRU of described sub-district is carried out frequency point allocation.
This shows, among the present invention, each RRU in the same sub-district is assigned in the plural RRU group, like this, when each frequency carries out the CA configuration in to this sub-district, can select a RRU to organize in each the RRU group from this sub-district with this frequency coupling, have following feature with the RRU group of this frequency coupling: this frequency has only the RRU group of a coupling, and the frequency number that has distributed in the RRU of this coupling group is organized supported maximum frequency number less than this RRU, therefore, after giving all RRU in the RRU group with its coupling with this frequency point allocation, this frequency only be assigned to the RRU of its coupling group in all RRU, and be not assigned to arbitrary RRU in arbitrary RRU group outside the RRU group of removing in this sub-district with this frequency coupling, RRU during promptly the carrier wave of this frequency can only be organized by the RRU with its coupling handles, and can not handle by the RRU in other RRU groups, this just makes that the configurable frequency point ranges in this sub-district is the union of the frequency that all RRU supported in this sub-district, with respect to prior art, the present invention has greatly expanded the configurable frequency point ranges in this sub-district, in addition, when needs further are extended to the configurable frequency point ranges in this sub-district union above the frequency that all RRU supported in this sub-district, 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 enlarges the configurable frequency point ranges in sub-district.
Description of drawings
Fig. 1 carries out the schematic diagram of frequency point allocation for prior art;
Fig. 2 carries out the flow chart of frequency point allocation for prior art;
Fig. 3 carries out the method flow diagram of frequency point allocation for the present invention;
Fig. 4 carries out the schematic diagram of frequency point allocation for the present invention;
Fig. 5 forms schematic diagram for the carrier frequency point in the home cell of the present invention after frequency point allocation and each RRU group;
Fig. 6 carries out the flow chart of frequency point allocation for the present invention;
Fig. 7 carries out the schematic diagram of frequency point allocation to the RRU that handles different frequency range in the same sub-district for the present invention;
Fig. 8 carries out the system construction drawing of frequency point allocation for the present invention;
Fig. 9 is for converging the structure chart of Switching Module among the present invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Fig. 3 carries out the method flow diagram of frequency point allocation for the present invention, in this method, each RRU in the same sub-district is assigned in the plural RRU group, and as shown in Figure 3, for each unappropriated frequency in this sub-district, this method comprises:
Step 301: from this plural RRU group, select a RRU to organize with this frequency coupling; Wherein, the RRU group with this frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU.
Here, the frequency in this sub-district comes from the carrier frequency point that DSP produced among the BBU.
The present invention is each only to be distributed a frequency, distributes a frequency, just begins to distribute next frequency, all assigns until all frequencies.
Have following two features with the RRU group of this frequency coupling: first is characterized as each frequency and has only a RRU group that matches, and the frequency number that has distributed in the RRU group that second is characterized as with this frequency coupling is less than this RRU and organizes supported maximum frequency number.If second feature do not satisfy, promptly the frequency number that has distributed in RRU group equals this RRU and organizes supported maximum frequency number, it is full to illustrate that then this RRU organizes supported frequency number, can not support new frequency again, and this RRU group is not the RRU group of mating with this frequency.
Step 302: give all RRU in the RRU group with its coupling with this frequency point allocation.
Here, after giving all RRU in the RRU group with its coupling with this frequency point allocation, this frequency only be assigned to the RRU of its coupling group in all RRU, and be not assigned to arbitrary RRU in arbitrary RRU group outside the RRU group of removing in this sub-district with this frequency coupling, RRU during promptly the carrier wave of this frequency can only be organized by the RRU with its coupling handles, and can not handle by the RRU in other RRU groups, this just makes that the configurable frequency point ranges in this sub-district is the union of the frequency that all RRU supported in this sub-district, with respect to prior art, the present invention has greatly expanded the configurable frequency point ranges in this sub-district, in addition, when needs further are extended to the configurable frequency point ranges in this sub-district union above the frequency that all RRU supported in this sub-district, 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 enlarges the configurable frequency point ranges in sub-district.
Fig. 4 carries out the schematic diagram of frequency point allocation for the present invention.As shown in Figure 4, each carrier frequency point that each DSP among the BBU produces as the f1 among Fig. 4, f2 and f3, is converged Switching Module and is assigned in each RRU group in this sub-district, and for example, f1 and f2 are assigned in the RRU group 0, and f3 is assigned in the RRU group 1.Certainly, can also comprise plural RRU group in this sub-district, the method for the RRU in this sub-district being carried out frequency point allocation is identical with Fig. 4, does not do at this and gives unnecessary details.
Fig. 5 forms schematic diagram for the carrier frequency point in the home cell of the present invention after frequency point allocation and each RRU group.As shown in Figure 5, home cell comprises 12 carrier frequency points, and this sub-district 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 includes only this RRU of RRU2.Simultaneously, the carrier frequency point in this sub-district 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 the A frequency range also has 6.Like this, among the present invention, each RRU group further has the frequency range attribute, and the frequency range attribute of RRU group is used to indicate this RRU to organize supported band limits.As shown in Figure 5, it is F-band that the frequency range attribute indication RRU of RRU group 0 organizes 0 supported band limits, it is the carrier wave that RRU in the RRU group 0 can only handle the frequency that is arranged in F-band, in like manner, it is the A frequency range that the frequency range attribute indication RRU of RRU group 1 organizes 1 supported band limits, and promptly RRU group 1 can only be handled the carrier wave of the frequency that is arranged in the 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 herein is identical with the frequency number that is positioned at the A frequency range, be 6, the present invention is equally applicable to be positioned at the frequency number and the different situation of frequency number that is positioned at the A frequency range of F-band, equally, be applicable to that also carrier frequency point in the home cell is distributed in more than two or has only a situation in the frequency range, does not do at this and gives unnecessary details.
If the frequency in the sub-district belongs to different frequency ranges, then the RRU group with this frequency coupling further is: this frequency will be contained in this RRU and organize in the supported band limits.If promptly a frequency belongs to F-band, then this frequency will be distributed to the RRU group that can support F-band.
Fig. 6 carries out the flow chart of frequency point allocation for the present invention.As shown in Figure 6, this flow process comprises:
Step 601: from each RRU group, select a RRU group;
Step 602: take out a frequency, each RRU in organizing with the RRU that selects in the step 601 carries out the CA configuration;
Step 603: whether the CA configuration described in the determining step 602 is successful, if, then return step 602, take out next frequency, each RRU in organizing with the RRU that selects in the step 601 carries out the CA configuration, otherwise, return step 601, choose next RRU group.
This shows, step 603 is used for the RRU the group whether selected RRU group of determining step 601 is the frequency coupling of taking out with step 602, if, then select RRU group with next frequency coupling, otherwise, select next RRU group and this frequency to carry out the CA coupling, organize until the RRU that selects with this frequency coupling.In addition, after the carrier frequency point of all RRU in the RRU group has assigned, begin to dispose next RRU group, all assigned until all frequencies.Like this, prior art promptly becomes a special case of the present invention, the special case when promptly having only a RRU group in this sub-district.
Fig. 7 carries out the schematic diagram of frequency point allocation to the RRU that handles different frequency range in the same sub-district for the present invention.As shown in Figure 7, each carrier frequency point that produces among the 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 sub-district, wherein, 0 processing of RRU group is positioned at the f1 of F-band, f2 and f3, and can not handle the f4 that is positioned at the 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 the RRU group 0, and promptly RRU0 to RRUn is same, 1 processing of RRU group is positioned at the f4 of A frequency range, f5 and f6, and can not handle the f1 that is positioned at F-band, f2 and f3 are 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 the RRU group 1, i.e. RRUn+1 to RRUn+m.Equally, the frequency range at the frequency place that the present invention also is applicable to BBU and is produced surpasses two or only be one situation, and the group of the RRU in this sub-district surpasses two or only be one situation, does not do at this and gives unnecessary details.
Among the present invention, each RRU in the same RRU group is identical RRU, this means that the frequency that each RRU in the 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 can't select a conduct and this frequency to mate from this plural RRU group, promptly each RRU group all can't be handled the carrier wave of this frequency, and then this method further comprises: stop the RRU of sub-district is carried out frequency point allocation.At this moment, also can will can't from each RRU group, select a message of organizing as RRU to be sent to BBU with this frequency coupling.
Fig. 8 carries out the system construction drawing of frequency point allocation for the present invention.As shown in Figure 8, this system comprises: converge Switching Module 801 and the plural RRU group 802 that is arranged in same sub-district, wherein,
Each described RRU group 802 comprises more than one RRU;
The described Switching Module 801 that converges is used for for each unappropriated frequency of this sub-district, selects a RRU with this frequency coupling to organize 802 from above-mentioned plural RRU group 802; Give all RRU in the RRU group 802 with its coupling with this frequency point allocation; Wherein, the RRU group 802 with this frequency coupling is: the frequency number that has distributed in this RRU group 802 is organized 802 supported maximum frequency numbers less than this RRU.
Fig. 9 is for converging the structure chart of Switching Module among 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, is used for taking out the unappropriated frequency in this sub-district, takes out one at every turn, and the frequency that is taken out is sent to RRU group matching module 902;
RRU organizes matching module 902, is used for selecting from the above-mentioned plural RRU group in sub-district a RRU group with this frequency coupling, the coupling RRU of this frequency is organized be notified to frequency point allocation module 903; With the RRU group of this frequency coupling be: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU;
Frequency point allocation module 903 is used for all RRU that this frequency point allocation is organized to the RRU with its coupling.
If the different frequent points that produces among the BBU is distributed in different frequency ranges, then 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 to organize the affiliated frequency range of supported frequency;
Then the RRU group with this frequency coupling further is: this frequency is contained in this RRU and organizes in the supported band limits.Like this, RRU group matching module 902 among Fig. 9 is further used for, judge that frequency takes out this indicated RRU of frequency range attribute whether frequency that module 901 taken out be contained in each RRU group and organizes in the supported band limits, if, then with the frequency range permission RRU group of this RRU group as this frequency, otherwise, this RRU group is forbidden the RRU group as the frequency range of this frequency; Like this, RRU group matching module 902 selected RRU groups with this frequency coupling must guarantee to allow in the RRU group in the frequency range of this frequency.
In the native system, each RRU in the same RRU group is identical RRU, this means that the frequency that each RRU in the 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.
This shows that the present invention has following advantage:
(1) among the present invention, each RRU in the same sub-district is assigned in the plural RRU group, like this, when each frequency carries out the CA configuration in to this sub-district, can select a RRU to organize in each the RRU group from this sub-district with this frequency coupling, have following feature with the RRU group of this frequency coupling: this frequency has only the RRU group of a coupling, and the frequency number that has distributed in the RRU of this coupling group is organized supported maximum frequency number less than this RRU, therefore, after giving all RRU in the RRU group with its coupling with this frequency point allocation, this frequency only be assigned to the RRU of its coupling group in all RRU, and be not assigned to arbitrary RRU in arbitrary RRU group outside the RRU group of removing in this sub-district with this frequency coupling, RRU during promptly the carrier wave of this frequency can only be organized by the RRU with its coupling handles, and can not handle by the RRU in other RRU groups, this just makes that the configurable frequency point ranges in this sub-district is the union of the frequency that all RRU supported in this sub-district, with respect to prior art, the present invention has greatly expanded the configurable frequency point ranges in this sub-district, in addition, when needs further are extended to the configurable frequency point ranges in this sub-district union above the frequency that all RRU supported in this sub-district, 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 enlarges the configurable frequency point ranges in sub-district.
(2) among the present invention, because each RRU group all 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 being distributed on each RRU in this sub-district of flexible configuration.
(3) among 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, with frequency point allocation in the RRU group of supporting the frequency range under self, like this, if F need be supported in a sub-district, A, the frequency of three frequency ranges of E, then the frequency point allocation of same frequency range can be organized to same RRU, or in the identical a plurality of RRU groups of the band limits of supporting, therefore, in the time the band limits that the sub-district is supported need being extended to the union that exceeds the band limits that all RRU supported in this sub-district, only need set up one or more new RRU groups, make its band limits comprise the union that exceeds the band limits that all RRU supported in this sub-district, so just further greatly reduce the cost that enlarges the configurable frequency point ranges in sub-district.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (9)
1. the method for a frequency point allocation is characterized in that, each radio frequency remote unit RRU in the same sub-district is assigned in the plural RRU group; For each unappropriated frequency in this sub-district, this method comprises:
From described plural RRU group, select a RRU to organize with described frequency coupling; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU;
Give all RRU in the RRU group with its coupling with described frequency point allocation.
2. method according to claim 1 is characterized in that, the RRU group of mating with described frequency further is: described frequency is contained in this RRU and organizes in the supported band limits.
3. method according to claim 1 and 2 is characterized in that, each RRU in the same RRU group is identical RRU.
4. method according to claim 1 and 2 is characterized in that, if can't select a RRU with described frequency coupling to organize from described plural RRU group, then this method further comprises: stop the RRU of described sub-district is carried out frequency point allocation.
5. the system of a frequency point allocation is characterized in that, this system comprises: converge Switching Module and the plural RRU group that is arranged in same sub-district, wherein,
Each described RRU group comprises more than one RRU;
The described Switching Module that converges is used for for each unappropriated frequency of this sub-district, selects a RRU with described frequency coupling to organize from described plural RRU group; Give all RRU in the RRU group with its coupling with described frequency point allocation; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU.
6. system according to claim 5 is characterized in that, 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, is used for taking out the unappropriated frequency in this sub-district, takes out one at every turn, and the frequency that is taken out is sent to described RRU group matching module;
Described RRU group matching module is used for selecting a RRU with described frequency coupling to organize from described plural RRU group; To be notified to described frequency point allocation module with the RRU group of described frequency coupling; Wherein, the RRU group with described frequency coupling is: the frequency number that has distributed in this RRU group is organized supported maximum frequency number less than this RRU;
Described frequency point allocation module is used for all RRU that described frequency point allocation is organized to the RRU with its coupling.
7. according to claim 5 or 6 described systems, it is characterized in that the RRU group of mating with described frequency further is: described frequency is contained in this RRU and organizes in the supported band limits.
8. according to claim 5 or 6 described systems, it is characterized in that each RRU in the same RRU group is identical RRU.
9. system according to claim 5 is characterized in that,
The described Switching Module that converges is further used for, if can't select a RRU with described frequency coupling to organize from described plural RRU group, then stops the RRU of described sub-district is carried out frequency point allocation.
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| CN103763712A (en) * | 2013-12-24 | 2014-04-30 | 华为技术有限公司 | Method, device and system for carrier frequency configuration |
| 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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| 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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| WO2012145892A1 (en) * | 2011-04-26 | 2012-11-01 | 富士通株式会社 | Access method, base station and user equipment |
| CN103763712A (en) * | 2013-12-24 | 2014-04-30 | 华为技术有限公司 | Method, device and system for carrier frequency configuration |
| 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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