CN102036249B - Inter-cell interference coordination method and base station - Google Patents
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Abstract
The invention provides an inter-cell interference coordination method and a base station. The method is applicable to a first base station having a service cell and comprises the following steps that: A, the first station performs initial scheduling in the service cell; and B, the first station receives an overload indication (OI) message sent by a second base station of a first neighbor cell among neighbor cells, and when the users in the service cell causes over-high interference to the first neighbor cells, the first station schedules users on the resource indicated by the OI message to a second resource from the first resource, wherein the first resource is the resource indicated by the OI message, and in the first neighbor cell, the grade of the OI message triggering threshold corresponding to the resource group of the second resource is higher than that of the OI message triggering threshold corresponding to the resource group of the first resource. The method can increase throughput compared with the conventional OI message-based inter-cell interference coordination method.
Description
Technical field
The present invention relates to mobile communication system, particularly a kind of inter-cell interference coordination method and base station.
Background technology
Future broadband wireless communication systems is in order to improve spectrum efficiency, OFDM (OFDMA, Orthogonal Frequency Division Multiple Access) or single carrier (Single carrier) technology will be adopted as multi-access mode.In up link, the employing of these technology will make up direction presence of intercell interference have nonwhite noise and with Resourse Distribute, user scheduling and the feature that fluctuates, have a strong impact on the accuracy of traditional resource scheduling algorithm and link circuit self-adapting algorithm.Therefore, require to coordinate between neighbor cell to carry out Resourse Distribute and user scheduling method, to reduce the impact of presence of intercell interference in said system.
For this reason, at LTE (Long Term Evolution, Long Term Evolution) in standardization effort, define OI (the Overload Indication on X2 interface, overload instruction) message and HII (HighInterference Indication, high interference indicates) message, with the interfere information between mutual neighbor cell, the Resourse Distribute between assisted cell and user scheduling.
Interference based on OI message controls to be one treatment mechanism afterwards, and its processing procedure as shown in Figure 1, comprising:
Step 11, the first base station measurement up direction comes from the interference noise ratio (IOT, Interference over thermal noise) of other interfered cells;
Step 12, the first base station judges whether IOT measured value is greater than predetermined threshold value, if so, enters step 13, otherwise returns step 11;
Step 13, the first base station sends overload Indication message OI by X2 interface to the second base station belonging to neighbor cell;
Step 14, receives the second base station of OI message, judges whether the user belonged in the community of the second base station is the principal element causing neighbor cell interference too high, if so, then enters step 15, otherwise disregards;
Step 15, the second base station reduces the transmitting power of the user causing neighbor cell interference too high belonged in the community of the second base station.
Wherein, the second base station receiving OI message judges whether the user belonged in the community of the second base station is the principal element causing neighbor cell interference too high, and namely judge whether the user in oneself community is cell boundary users, it judges in the following way:
The user obtained in community receives the first signal power of this community, and the secondary signal power of adjacent cell that the user in community receives;
Whether the difference relatively between the first signal power and secondary signal power is less than pre-determined threshold (as 6dB), if so, then judges that this user is as cell boundary users.
But inventor finds in the process realizing the embodiment of the present invention, the inter-cell interference coordination method of prior art at least has following shortcoming:
Inter-cell power control method based on OI can reduce the interference that adjacent cell is brought, but cost reduces the transmitted power of cell boundary users, this performance impact for the more serious cell boundary users of path loss, by being very serious, causes service quality to reduce.
Summary of the invention
The object of this invention is to provide a kind of inter-cell interference coordination method and base station, under the prerequisite ensureing Inter-Cell Interference Coordination performance, improve throughput of system.
To achieve these goals, embodiments provide a kind of inter-cell interference coordination method, for having the first base station of a Serving cell, described Serving cell has at least one adjacent cell, it is characterized in that, the communication resource of described Serving cell and described adjacent cell is all divided at least two resource groups, belong to the overload instruction OI message trigger threshold level that the different resource group of same cells is corresponding different, in described Serving cell and described adjacent cell, the same asset group belonging to different districts corresponds to different OI message trigger threshold level, described method comprises:
Steps A, initial schedule is carried out in Serving cell in the first base station;
Step B, the OI message that first base station sends in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to Secondary resource from first resource by the first base station;
The resource of described first resource indicated by described OI message, in described first adjacent cell, the grade of the OI message trigger thresholding corresponding to resource group at described Secondary resource place higher than described first resource place resource group corresponding to the grade of OI message trigger thresholding.
Above-mentioned inter-cell interference coordination method, is characterized in that, described step B specifically comprises:
Step B1, the OI message that first base station sends in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, whether described first base station judges, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource the second adjacent cell interference outside described first adjacent cell can be caused too high;
Step B2, by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource by described first base station.
Above-mentioned inter-cell interference coordination method, it is characterized in that, the grade of the OI message trigger thresholding of the correspondence of described first adjacent cell is greater than in the resource group of the grade of OI message trigger thresholding corresponding to the resource group at described first resource place, and the grade of the OI message trigger thresholding that the resource group at described Secondary resource place is corresponding is minimum.
Above-mentioned inter-cell interference coordination method, is characterized in that, also comprises:
By the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can cause described second adjacent cell interference too high, or in described first adjacent cell, when the grade of the OI message trigger thresholding that the resource group belonging to first resource indicated by described OI message is corresponding is the highest, described first base station reduces the transmitting power of the user that described first resource distributes.
To achieve these goals, the embodiment of the present invention additionally provides a kind of base station, there is a Serving cell, described Serving cell has at least one adjacent cell, the communication resource of described Serving cell and described adjacent cell is all divided at least two resource groups, belong to the overload instruction OI message trigger threshold level that the different resource group of same cells is corresponding different, in described Serving cell and described adjacent cell, the same asset group belonging to different districts corresponds to different OI message trigger threshold level, and described base station comprises:
Initial schedule module, for carrying out initial schedule in Serving cell;
Executive Module, for the OI message sent in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to Secondary resource from first resource.
Above-mentioned base station, wherein, described Executive Module comprises:
Anticipation unit, for the OI message sent in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, judge by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource whether can cause outside described first adjacent cell second adjacent cell interference too high;
Scheduling unit, for by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource.
Above-mentioned base station, wherein, the grade of the OI message trigger thresholding of the correspondence of described first adjacent cell is greater than in the resource group of the grade of OI message trigger thresholding corresponding to the resource group at described first resource place, and the grade of the OI message trigger thresholding that the resource group at described Secondary resource place is corresponding is minimum.
Above-mentioned base station, wherein, also comprises:
Power reduction module, for by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can cause described second adjacent cell interference too high, or in described first adjacent cell, when the grade of the OI message trigger thresholding that the resource group belonging to first resource indicated by described OI message is corresponding is the highest, reduce the transmitting power of the user that described first resource distributes.
The embodiment of the present invention has following beneficial effect:
In the embodiment of the present invention, by arranging different IOT thresholdings for different resource group, and in the first base station in the OI message that the second base station received belonging to the first adjacent cell of coming from described adjacent cell sends, and the user in described Serving cell cause described first adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to Secondary resource from first resource by the first base station; And the resource of described first resource indicated by described OI message, in described first adjacent cell, the grade of the OI message trigger thresholding corresponding to resource group at described Secondary resource place higher than described first resource place resource group corresponding to the grade of OI message trigger thresholding.
By above setting, shown by emulation, the embodiment of the present invention under the prerequisite ensureing Inter-Cell Interference Coordination performance, can improve throughput of system.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet controlled based on the interference of OI message;
Fig. 2 is the schematic diagram of neighbor cell;
Fig. 3 is that the OI message trigger thresholding of neighbor cell in the embodiment of the present invention distributes schematic diagram;
Fig. 4 is the schematic flow sheet of the method for the embodiment of the present invention;
Fig. 5 is a simulation result figure of the embodiment of the present invention;
Fig. 6 is another simulation result figure of the embodiment of the present invention.
Embodiment
In the inter-cell interference coordination method of the specific embodiment of the invention and base station, for any one community, its communication resource is divided at least two groups, each group communication resource corresponds to an OI message trigger thresholding, the grade of the OI message trigger thresholding corresponding to group at the same asset place of all neighbor cells is different, and different brackets triggers the value difference of thresholding.
First above-mentioned concept is described below.
As shown in Figure 2, suppose that the adjacent cell of community A comprises community B and community C, wherein:
The communication resource (carrier wave or Resource Block RB) of community A, B and C is divided into 3 groups, is respectively resource group A1, resource group A2, resource group A3;
Then the grade of the OI message trigger thresholding corresponding to resource group A1 of community A, B and C is different, then the grade of the OI message trigger thresholding corresponding to resource group A2 of community A, B and C is different, then the grade of the OI message trigger thresholding corresponding to resource group A3 of community A, B and C is different.
So-called OI message trigger thresholding, when whether IOT measured value is greater than this threshold value, needs send OI message to adjacent base station exactly.
As shown in Figure 3, assuming that it is higher to trigger threshold level, then trigger thresholding higher, then the possible method of salary distribution is as follows:
In the A of community, resource group A1, resource group A2, resource group A3 correspond respectively to the triggering thresholding of the tertiary gradient, the first estate and the second grade;
In the B of community, resource group A1, resource group A2, resource group A3 correspond respectively to the triggering thresholding of the first estate, the second grade and the tertiary gradient;
In the C of community, resource group A1, resource group A2, resource group A3 correspond respectively to the triggering thresholding of the second grade, the tertiary gradient and the first estate.
Certainly, above-mentionedly only to illustrate, the grouping of this resource can be more, and the number of neighbor cell also can be more.
The inter-cell interference coordination method of the specific embodiment of the invention, for having the first base station of a Serving cell, described Serving cell has at least one adjacent cell, it is characterized in that, the communication resource of described Serving cell and described adjacent cell is all divided at least two resource groups, belong to the overload instruction OI message trigger threshold level that the different resource group of same cells is corresponding different, in described Serving cell and described adjacent cell, the same asset group belonging to different districts corresponds to different OI message trigger threshold level, as shown in Figure 4, described method comprises:
Step 41, the first base station utilizes FFR mode to carry out initial schedule in Serving cell; Other dispatching algorithm available arbitrarily can certainly be adopted.
Step 42, the first base station receives the OI message coming from the second base station belonging to the first adjacent cell adjacent with described Serving cell and send;
Step 43, the first base station judges whether the user belonged in the community of the first base station causes described first adjacent cell interference too high, obtains one first judged result;
Step 44, when the described first judged result instruction user belonged in the community of the first base station causes described first adjacent cell interference too high, user in resource indicated by described OI message is dispatched to Secondary resource from first resource by the first base station, the resource of described first resource indicated by described OI message, described first adjacent cell is namely caused to disturb resource assigned by too high user, in described first adjacent cell, the grade of the OI message trigger thresholding corresponding to resource group at described Secondary resource place higher than described first resource place resource group corresponding to the grade of OI message trigger thresholding.
Certainly, in order to make adjustment effective as far as possible, although consider that caused high interference to other adjacent cells, then in a particular embodiment of the present invention, step 44 specifically comprises if effective to the first adjacent cell after adjusting:
Step 441, when the described judged result instruction user belonged in the community of the first base station causes described first adjacent cell interference too high, described first base station judges, whether the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource can cause the second adjacent cell interference too high, obtains the second judged result; Described second adjacent cell is the community in the adjacent cell of the community of described first base station except described first adjacent cell;
Step 442, in described second judged result instruction, by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource by the first base station.
In a particular embodiment of the present invention, especially by following formula, the first base station judges whether the user belonged in the community of the first base station causes described first adjacent cell interference too high:
P
UE*PL
BS1/noise＞a*IoT_th
BS1
Wherein P
uEfor user uplink transmitting power, PL
bS1for user is to the path loss of neighbour region BS 1, IoT_th
bS1for the IOT thresholding that neighbour region BS 1 is arranged on current resource block, a value is between 0 to 1, and in a particular embodiment of the present invention, value is 0.5.
Certainly, by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can cause described second adjacent cell interference too high, or in described first adjacent cell, when the grade of the OI message trigger thresholding that resource group A1 belonging to the first resource indicated by described OI message is corresponding is the highest, the method for the embodiment of the present invention also comprises:
Step 45, described first base station reduces the transmitting power of the user that described first resource distributes.
In step 44, in described first adjacent cell, the grade of corresponding OI message trigger thresholding is greater than in the resource group of the grade of OI message trigger thresholding corresponding to the resource group at described first resource place, the grade of the OI message trigger thresholding that the resource group at described Secondary resource place is corresponding is minimum, therefore, it is possible to incremental carrying out regulates.
First base station of the specific embodiment of the invention, has a Serving cell, and described Serving cell has at least one adjacent cell, as shown in Figure 5, comprising:
Resource distribution module, for the communication resource being divided at least two resource groups, and configure OI message trigger threshold level, the OI message trigger threshold level that described in making, at least two resource groups are corresponding different, in described base station and described adjacent base station, same asset group corresponds to different OI message trigger threshold level;
Initial schedule module, carries out initial schedule for utilizing FFR mode;
Receiver module, for receiving the OI message coming from the second base station belonging to the first adjacent cell adjacent with described Serving cell and send;
First judge module, for judging whether the user in described Serving cell causes described first adjacent cell interference too high, obtains one first judged result;
Executive Module, during for causing described first adjacent cell interference too high the described first judged result instruction user belonged in the community of the first base station, user in resource indicated by described OI message is dispatched to Secondary resource from first resource, the resource of described first resource indicated by described OI message, described first adjacent cell is namely caused to disturb resource assigned by too high user, in described first adjacent cell, the grade of the OI message trigger thresholding corresponding to resource group at described Secondary resource place higher than described first resource place resource group corresponding to the grade of OI message trigger thresholding.
In a particular embodiment of the present invention, this Executive Module specifically comprises:
Second judge module, during for causing described first adjacent cell interference too high the described judged result instruction user belonged in the community of the first base station, judge that whether the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource can cause the second adjacent cell interference too high, obtains the second judged result; Described second adjacent cell is the community in the adjacent cell of the community of described first base station except described first adjacent cell;
Scheduler module, for indicating in described second judged result, by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource.
For Fig. 3, illustrate as follows, assuming that community A own base station receives the OI message that community B own base station sends, according to this OI message, it is too high that community A own base station determines that the user in the A of community causes community B to disturb, and the first resource indicated by described OI message belongs to resource group A1, then community A own base station by user scheduling that first resource distributes in the resource of resource group A2 or A3.
Certainly, consider Moderate Principle, then can by community A own base station by user scheduling that first resource distributes in the resource of resource group A2.
Certainly, before scheduling, need first to consider, by the phenomenon that community A own base station will the user scheduling that first resource distributes to the resource of resource group A2 can or can not cause interference too high to community C, if meeting, then do not adjust, directly reduced the transmitting power of the user that described first resource distributes by the first base station.
Certainly, if community A own base station receives the OI message that community B own base station sends, according to this OI message, it is too high that community A own base station determines that the user in the A of community causes community B to disturb, and the first resource indicated by described OI message belongs to resource group A3, now, cannot regulate, then directly be reduced the transmitting power of the user that described first resource distributes by the first base station.
With emulation, the effect of the embodiment of the present invention is described as follows below.
System integration project parameter is as follows:
Parameter 19 base stations, 57 sectors
Community arranges hexagonal, 19 communities, 3 sectors/cells
Antenna horizontal type 70 degree (-3dB), 20dB is compared in front and back
Base station distance 500m
Path loss model 128.1+37.6log (R), R (km)
Slow fading change 8dB
Carrier frequency 2000MHz
UE distributes single random distribution
Channel width 10MHz
Thermal noise-174dBm/Hz
Fading channel model TU 6rays
Dispatching algorithm fair algorithm
Available subcarrier 40RB (1-12,13-24,25-40)
FFT size 512
Modulation type QPSK, 16QAM
HARQ CC
Traffic model Full buffer
Every community UE number 10,12,16
Single IOT thresholding 8dB
Many IOT thresholding 4dB, 8dB, 12dB
Penetration loss 20dB
UE antenna gain 0dB
In Fig. 5, the curve of top is the simulation curve of the method for the embodiment of the present invention, and the curve of below is the simulation curve of the existing method of adjustment based on OI message, as can be seen from the simulation result of Fig. 5, along with the increase of intra-cell users number, the present invention can provide the increase of the community average throughput of 9-10% compared to the existing method of adjustment based on OI message.
In Fig. 5, the curve of right is the simulation curve of the method for the embodiment of the present invention, and the curve of left is the simulation curve of the existing method of adjustment based on OI message, as can be seen from the user throughput CDF Dependence Results of Fig. 6, compared to the existing method of adjustment based on OI message, under the user situation of every community 10, the method for the embodiment of the present invention can provide the community average throughput of 10% and 10.5% and the raising of cell boundary users throughput respectively.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. an inter-cell interference coordination method, for having the first base station of a Serving cell, described Serving cell has at least one adjacent cell, it is characterized in that, the communication resource of described Serving cell and described adjacent cell is all divided at least two resource groups, belong to the overload instruction OI message trigger threshold level that the different resource group of same cells is corresponding different, in described Serving cell and described adjacent cell, the same asset group belonging to different districts corresponds to different OI message trigger threshold level, and described method comprises:
Steps A, initial schedule is carried out in Serving cell in the first base station;
Step B, the OI message that first base station sends in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to Secondary resource from first resource by the first base station;
The resource of described first resource indicated by described OI message, in described first adjacent cell, the grade of the OI message trigger thresholding corresponding to resource group at described Secondary resource place higher than described first resource place resource group corresponding to the grade of OI message trigger thresholding.
2. inter-cell interference coordination method according to claim 1, is characterized in that, described step B specifically comprises:
Step B1, the OI message that first base station sends in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, whether described first base station judges, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource the second adjacent cell interference outside described first adjacent cell can be caused too high;
Step B2, by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource by described first base station.
3. inter-cell interference coordination method according to claim 2, it is characterized in that, the grade of the OI message trigger thresholding of the correspondence of described first adjacent cell is greater than in the resource group of the grade of OI message trigger thresholding corresponding to the resource group at described first resource place, and the grade of the OI message trigger thresholding that the resource group at described Secondary resource place is corresponding is minimum.
4. inter-cell interference coordination method according to claim 3, is characterized in that, also comprises:
By the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can cause described second adjacent cell interference too high, or in described first adjacent cell, when the grade of the OI message trigger thresholding that the resource group belonging to first resource indicated by described OI message is corresponding is the highest, described first base station reduces the transmitting power of the user that described first resource distributes.
5. a base station, there is a Serving cell, described Serving cell has at least one adjacent cell, it is characterized in that, the communication resource of described Serving cell and described adjacent cell is all divided at least two resource groups, belongs to the different resource group corresponding different overloads instruction OI message trigger threshold level of same cells, in described Serving cell and described adjacent cell, the same asset group belonging to different districts corresponds to different OI message trigger threshold level, and described base station comprises:
Initial schedule module, for carrying out initial schedule in Serving cell;
Executive Module, for the OI message sent in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to Secondary resource from first resource.
6. base station according to claim 5, is characterized in that, described Executive Module comprises:
Anticipation unit, for the OI message sent in the second base station received belonging to the first adjacent cell of coming from described adjacent cell, and the user in described Serving cell cause described first adjacent cell interference too high time, judge by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource whether can cause outside described first adjacent cell second adjacent cell interference too high;
Scheduling unit, for by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can not cause described second adjacent cell interference too high time, the user in the resource indicated by described OI message is dispatched to described Secondary resource from described first resource.
7. base station according to claim 6, it is characterized in that, the grade of the OI message trigger thresholding of the correspondence of described first adjacent cell is greater than in the resource group of the grade of OI message trigger thresholding corresponding to the resource group at described first resource place, and the grade of the OI message trigger thresholding that the resource group at described Secondary resource place is corresponding is minimum.
8. base station according to claim 7, is characterized in that, also comprises:
Power reduction module, for by the user in the resource indicated by described OI message from described first resource be dispatched to described Secondary resource can cause described second adjacent cell interference too high, or in described first adjacent cell, when the grade of the OI message trigger thresholding that the resource group belonging to first resource indicated by described OI message is corresponding is the highest, reduce the transmitting power of the user that described first resource distributes.
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| CN102857925B (en) * | 2011-06-29 | 2016-03-23 | 普天信息技术研究院有限公司 | A kind of coarseness dynamic frequency multiplexing method based on HII/OI |
| EP2732556A4 (en) * | 2011-07-13 | 2015-03-18 | Ericsson Telefon Ab L M | Apparatus and method for reactive inter-cell interference coordination |
| CN106230542B (en) * | 2012-03-01 | 2020-08-25 | 华为技术有限公司 | Method and device for interference coordination |
| CN103582097B (en) * | 2012-07-18 | 2016-09-21 | 普天信息技术研究院有限公司 | A kind of control method of inter-cell uplink interference |
| CN103220677B (en) * | 2013-05-09 | 2016-02-10 | 东莞宇龙通信科技有限公司 | For interference elimination method and the base station of cell cluster |
| WO2015061984A1 (en) * | 2013-10-30 | 2015-05-07 | 华为技术有限公司 | Method and device for eliminating intersystem neighboring frequency interference |
| CN105636088B (en) * | 2014-10-31 | 2019-02-01 | 华为技术有限公司 | A kind of method, equipment, control device and base station handling inter-cell interference |
| CN106304367B (en) * | 2015-05-21 | 2020-01-17 | 普天信息技术有限公司 | Inter-cell interference coordination method and device |
| WO2017107199A1 (en) * | 2015-12-25 | 2017-06-29 | 华为技术有限公司 | Communications method, device, and system |
| CN107347186B (en) * | 2016-05-06 | 2019-11-19 | 大唐移动通信设备有限公司 | A kind of disturbance coordination method and server |
| CN108347289B (en) * | 2017-01-25 | 2020-04-03 | 华为技术有限公司 | Interference coordination method and device |
| CN111200872A (en) | 2018-11-19 | 2020-05-26 | 华为技术有限公司 | Method and communication device for reporting beam |
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