CN107204821A - Suppress method and the base station of high-power terminal interference - Google Patents
Suppress method and the base station of high-power terminal interference Download PDFInfo
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- CN107204821A CN107204821A CN201610149969.4A CN201610149969A CN107204821A CN 107204821 A CN107204821 A CN 107204821A CN 201610149969 A CN201610149969 A CN 201610149969A CN 107204821 A CN107204821 A CN 107204821A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0056—Inter-base station aspects
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Abstract
The invention provides a kind of method for suppressing high-power terminal interference and base station.This method includes：The position of S1, the base station cell according to residing for terminal, central user and edge customer are divided into by the terminal in cell, and edge customer is divided into sector-edge user and non-same location edge customer again；S2, base station obtain terminal current power values all in its coverage；S3, judge in cell and neighbor cell residing for terminal, the first ratio and default first threshold and the magnitude relationship of Second Threshold；S4, be repeated cyclically in step S3 judge cell where terminal with neighbor cell, the step of the first ratio and default first threshold and the magnitude relationship of Second Threshold.The method that the present invention is provided can be coordinated according to actual conditions are adaptive to interference, be conducive to frequency spectrum resource rationally efficiently to utilize, improve the capacity and network performance of whole broadband cluster system.
Description
Technical field
The invention belongs to communication technical field, more particularly to a kind of method for suppressing high-power terminal interference and base station.
Background technology
Trunked communication system, is referred to the public one group of wireless channel of multiple users and is dynamically led to using the movement of these channels
Letter system, it is shared resource, contribution, common channel equipment and the multipurpose of service, dynamical wireless dispatching communication
System.The big covering of LTE public networks can be utilized by relying on the public network group system of LTE public networks covering, while cluster industry can be reduced
The operation of business and maintenance cost.LTE system employs OFDMA (Orthogonal Frequency Division Multiple
Access) technology, although can be very good to suppress the interference in cell, but still there is a situation where to disturb between neighbor cell.
The low time delays such as voice, data, video, highly reliable multiple business are usually contained in broadband multimedia cluster system, to ensure
The quality namely Qos of these business, then need to introduce high-power terminal (namely using colony terminal of larger transmission power).
And the introducing of high-power terminal makes the interference between LTE system neighbor cell increasingly complex, therefore, public network cluster system how is solved
Interference in system between area under one's jurisdiction, the interference of especially high-power terminal-pair LTE public network terminals (namely ordinary terminal) has become
One urgent problem to be solved.
Current LTE system mainly uses interference coordination technique for the interference between cell.Interference coordination technique
(ICIC) there are a variety of methods, be substantially and certain limitation is set to resource management, to coordinate the action of multiple cells, it is to avoid
Serious inter-cell interference is produced, the handling capacity of cell edge is improved.Although these methods can be alleviated dry to a certain extent
Disturb, but be unfavorable for reasonably utilizing frequency spectrum resource, especially for the interference nothing of the high-power terminal-pair ordinary terminal of adjacent cell
Method selects suitable coordination approach according to different situations, so as to influence power system capacity and network performance.
The content of the invention
It is an object of the present invention to provide it is a kind of can be adaptive according to the different situations of high-power terminal and ordinary terminal
Select the disturbance restraining method of corresponding coordination strategy.
In order to achieve the above object, the invention provides a kind of method for suppressing high-power terminal interference, including：
S1, the base station subdistrict position according to residing for terminal user, central user and edge are divided into by the terminal in cell
User, edge customer is divided into sector-edge user and non-same location edge customer again；
Wherein, the terminal positioned at sector centers is the central user；The end of two neighboring sector-edge in cell
Hold as the sector-edge user；It is the non-same location edge customer positioned at the terminal of two neighboring cell edge；
S2, base station obtain the current power value of all terminals in its coverage；
S3, judge in cell and neighbor cell residing for Generic End-User, the first ratio and default first threshold, second
The magnitude relationship of threshold value and the 3rd threshold value；
Wherein, the neighbor cell includes the high-power terminal for disturbing the cell ordinary terminal；First ratio, is base
Cell where standing is more than or equal to shared by the edge customer for receiving jamming power threshold value with neighbor cell, receiving interference power values
The ratio for the total resources block number that number of resource blocks takes with edge customer；
If first ratio is more than or equal to first threshold, and the high-power terminal is edge customer, described common
Terminal is sector-edge user：Then the base station sends the frequency band occupied information of the ordinary terminal to neighbor cell base station, with
Neighbor cell base station is set to be set to the band occupancy of high-power terminal to avoid the ordinary terminal according to the frequency band occupied information
Shared frequency band；
S4, be repeated cyclically in step S3 and judge in cell and neighbor cell residing for Generic End-User, the first ratio with
The step of magnitude relationship of default first threshold, Second Threshold and the 3rd threshold value.
Preferably, step S3 also includes：
If first ratio is less than first threshold, more than or equal to Second Threshold, and the high-power terminal is edge
User, the ordinary terminal is non-same location edge customer：
Then the base station sends high-power terminal interference information to neighbor cell base station, so that neighbor cell base station reduction is big
The performance number of power terminal.
Preferably, the base station sends high-power terminal interference information to neighbor cell base station, so that neighbor cell base station
The step of performance number for reducing high-power terminal, includes：
The base station sends high-power terminal interference information to neighbor cell base station, so that neighbor cell base station is with default
First step-length reduces the performance number of high-power terminal.
Preferably, step S3 also includes：
If first ratio is less than Second Threshold, more than or equal to the 3rd threshold value：
Then the base station reduces the performance number of ordinary terminal, and sends high-power terminal interference information to neighbor cell, with
Neighbor cell base station is set to reduce the performance number of high-power terminal.
Preferably, the base station reduces the performance number of ordinary terminal, and sends high-power terminal interference letter to neighbor cell
Breath, so that neighbor cell base station includes the step of reducing the performance number of high-power terminal：
The base station and neighbor cell base station are with default second step-length reduction ordinary terminal and high-power terminal
Performance number.
Preferably, step S1 is specifically included：
Base station divides the user type of the terminal according to the Reference Signal Received Power value of terminal：
If the Reference Signal Received Power value of terminal is more than user centered on default first power threshold, the terminal；
If the difference of the Reference Signal Received Power value of terminal and the Reference Signal Received Power value of most strong jamming neighbor cell
Value is less than default power difference threshold value, then the terminal is edge customer.
Preferably, step S1 also includes：
When the terminal is edge customer, according to the big of the Reference Signal Received Power value of terminal and the second power threshold
Small relation judges the edge customer type belonging to it：
If the Reference Signal Received Power value of terminal is less than or equal to default second power threshold, the terminal is non-same
Location edge customer；
If the Reference Signal Received Power value of terminal is more than the second power threshold, the terminal is sector-edge user；
Wherein, the first power threshold is more than or equal to the second power threshold.
Present invention also offers a kind of base station, including：
Division unit, for the subdistrict position according to residing for terminal user, by the terminal in cell be divided into central user with
And edge customer, edge customer is divided into sector-edge user and non-same location edge customer again；Wherein, positioned at sector centers
Terminal is the central user；The terminal of two neighboring sector-edge is the sector-edge user in cell；Positioned at phase
The terminal of adjacent two cell edges is the non-same location edge customer；
Acquiring unit, the current power value for obtaining all terminals in base station range；
Judge processing unit, for judging in cell residing for Generic End-User and neighbor cell, the first ratio is with presetting
First threshold, the magnitude relationship of Second Threshold and the 3rd threshold value；；
Wherein, the neighbor cell includes the high-power terminal of cell ordinary terminal where disturbing the base station；Described first
Ratio, is that cell where base station is more than or equal to the side for receiving jamming power threshold value with neighbor cell, receiving interference power values
The ratio for the total resources block number that number of resource blocks shared by edge user takes with edge customer；
If first ratio is more than or equal to first threshold, and the high-power terminal is edge customer, described common
Terminal is sector-edge user：Then the base station sends the frequency band occupied information of the ordinary terminal to neighbor cell base station, with
Neighbor cell base station is set to be set to the band occupancy of high-power terminal to avoid the ordinary terminal according to the frequency band occupied information
Shared frequency band.
Preferably, it is described judge processing unit be additionally operable to be less than first threshold for first ratio in judged result, it is big
In or equal to Second Threshold, and the high-power terminal is edge customer, when the ordinary terminal is non-same location edge customer：
High-power terminal interference information is sent to neighbor cell base station, so that neighbor cell base station reduces high-power terminal
Performance number.
Preferably, it is described judge processing unit be additionally operable to be less than Second Threshold for first ratio in judged result, it is big
When three threshold values：
The performance number of ordinary terminal is reduced, and high-power terminal interference information is sent to neighbor cell, so that neighbor cell
Base station reduces the performance number of high-power terminal.
In the method for the high-power terminal interference of suppression that the present invention is provided, by being divided to terminal, and common whole
When the position and interference information for holding and disturbing the high-power terminal of the ordinary terminal meet some requirements, perform corresponding
Disturbance restraining method, can coordinate to interference according to actual conditions are adaptive, be conducive to frequency spectrum resource rationally efficient
Utilize, improve the capacity and network performance of whole broadband cluster system.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is that the sector for the cell that embodiment of the present invention is provided divides schematic diagram；
Fig. 2 is that the suppression that embodiment of the present invention is provided high-power shows terminal interference method schematic diagram；
Fig. 3 is that the suppression that embodiment of the present invention is provided high-power shows the specific schematic diagram of terminal interference method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other reality that ordinary skill people is obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
As shown in figure 1, embodiment of the present invention provides a kind of method for suppressing high-power terminal interference, specifically include：
S1, the base station subdistrict position according to residing for terminal, central user and edge customer are divided into by the terminal in cell,
Edge customer is divided into sector-edge user and non-same location edge customer again；
As shown in Fig. 2 cell is preferably divided into the C1 shown in three sectors, namely Fig. 2 by the base station of each cell
To C21 sectors.Wherein, the user centered on the terminal of sector centers；The terminal of two neighboring sector-edge in cell
For sector-edge user；It is non-same location edge customer positioned at the terminal of two neighboring cell edge.
In the specific implementation, step S1 is specifically included：
Base station is according to the Reference Signal Received Power value RSRP (Reference Signal Received Power) of terminal
To divide the user type of the terminal：
If the Reference Signal Received Power value of A, terminal is more than default first power threshold, namely RSRP >=RSRPth1,
Then user centered on the terminal；
If the Reference Signal Received Power value of B, terminal and the Reference Signal Received Power value of most strong jamming neighbor cell
Difference is less than default power difference threshold value, namely Δ RSRP=RSRPservingcell-RSRPmax-neighbour≤ΔRSRPth, then
The terminal is edge customer.
Wherein, when the terminal is edge customer, according to the Reference Signal Received Power value of terminal and the second power-threshold
The magnitude relationship of value judges the edge customer type belonging to it：
If the Reference Signal Received Power value of B1, terminal is less than or equal to default second power threshold, namely RSRP≤
RSRPth2, then the terminal is non-same location edge customer；
If the Reference Signal Received Power value of B2, terminal is more than the second power threshold, namely RSRP>RSRPth2, the terminal
For sector-edge user.
First power threshold RSRPth1More than or equal to the second power threshold RSRPth2。
S2, base station obtain the current power value of all terminals in its coverage；
S3, judge in cell and neighbor cell residing for ordinary terminal, the first ratio and default first threshold pth1, second
Threshold value pth2And the 3rd threshold value pth3Magnitude relationship；
Wherein, neighbor cell includes the high-power terminal for disturbing the cell ordinary terminal；First ratio, is that base station place is small
Area is dry more than or equal to receiving with neighbor cell, receiving interference power values RIP (Received Interference Power)
Disturb power threshold RIPthEdge customer shared by number of resource blocks NRB(RB, resource block) takes with edge customer
Total resources block numberRatio, namely
If as shown in figure 3, the above-mentioned judged result of step be the first ratio be more than or equal to first threshold, namelyAnd it is big
Power terminal is edge customer, and ordinary terminal is sector-edge user：Then base station sends ordinary terminal to neighbor cell base station
Frequency band occupied information, so that the band occupancy of high-power terminal is set to avoid by neighbor cell base station according to frequency band occupied information
Frequency band shared by the ordinary terminal.For example, the band occupancy that can set ordinary terminal is HII frequency bands, base station will commonly eventually
The information of the occupancy HII frequency bands at end is sent to neighbor cell base station, phase by X2 interface (physical layer communication interface between base station)
Adjacent cell base station HII frequency bands are avoided when setting high-power terminal band occupancy according to this information；
S4, be repeated cyclically in step S3 and judge in cell and neighbor cell residing for Generic End-User, the first ratio with
The magnitude relationship step of default first threshold, Second Threshold and the 3rd threshold value.
Preferably, as shown in figure 3, step S3 also includes second of estimate of situation：
If judged result, which is the first ratio, is less than first threshold, more than or equal to Second Threshold, namelyAnd it is big
Power terminal is edge customer, and ordinary terminal is non-same location edge customer：Then base station sends high-power terminal to neighbor cell base station
Interference information, so that neighbor cell base station reduces the performance number of high-power terminal.
In the specific implementation, the base station of neighbor cell is to reduce the work(of high-power terminal with default first step delta 1
Rate value.
Preferably, as shown in figure 3, step S3 also includes the third estimate of situation：
If judged result, which is the first ratio, is less than Second Threshold, more than or equal to the 3rd threshold value, namely
Then base station reduces the performance number of ordinary terminal, and sends high-power terminal interference information to neighbor cell, so that neighbor cell base station
Reduce the performance number of high-power terminal.
In the specific implementation, base station and neighbor cell base station are with default second step delta2Come reduce ordinary terminal with
And the performance number of high-power terminal.
In the method for the high-power terminal interference of suppression that the present invention is provided, by being divided to terminal, and common whole
When the position and interference information for holding and disturbing the high-power terminal of the ordinary terminal meet some requirements, perform corresponding
Disturbance restraining method, can coordinate to interference according to actual conditions are adaptive, be conducive to frequency spectrum resource rationally efficient
Utilize, improve the capacity and network performance of whole broadband cluster system.
Embodiment of the present invention additionally provides a kind of base station, specifically includes：
Division unit, for the subdistrict position according to residing for terminal user, by the terminal in cell be divided into central user with
And edge customer, edge customer is divided into sector-edge user and non-same location edge customer again；Wherein, central user be positioned at
The terminal of sector centers；Sector-edge user refers to the terminal of the two neighboring sector-edge in cell；Non- same location edge customer
Refer to the terminal positioned at two neighboring cell edge；
Acquiring unit, the current power value of all terminals of cell where for obtaining base station；
Judge processing unit, for judging in cell residing for Generic End-User and neighbor cell, the first ratio is with presetting
First threshold, the magnitude relationship of Second Threshold and the 3rd threshold value；
Wherein, neighbor cell includes the high-power terminal for disturbing cell ordinary terminal residing for the Generic End-User；First
Ratio, is that cell where base station is more than or equal to the side for receiving jamming power threshold value with neighbor cell, receiving interference power values
The ratio for the total resources block number that number of resource blocks shared by edge user takes with edge customer；
If the first ratio is more than or equal to first threshold, and high-power terminal is edge customer, and ordinary terminal is sector side
Edge user：Then base station sends the frequency band occupied information of ordinary terminal to neighbor cell base station, so that neighbor cell base station is according to frequency
The band occupancy of high-power terminal is set to occupied information to avoid the frequency band shared by the ordinary terminal.
Preferably, judge processing unit be additionally operable to judged result for the first ratio be less than first threshold, be more than or equal to
Second Threshold, and high-power terminal is edge customer, when ordinary terminal is non-same location edge customer：Sent to neighbor cell base station
High-power terminal interference information, so that neighbor cell base station reduces the performance number of high-power terminal.
Preferably, judge processing unit be additionally operable to judged result for the first ratio be less than Second Threshold, be more than or equal to
During three threshold values：The performance number of ordinary terminal is reduced, and high-power terminal interference information is sent to neighbor cell, so that adjacent small
Area base station reduces the performance number of high-power terminal.
Method of the base station that embodiment of the present invention is provided according to the high-power terminal interference of above-mentioned suppression, for different realities
Border situation performs corresponding suppression interference operation, and specific operation content illustrates in method narration, will not be repeated here.
Above example is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to the present invention
It is described in detail, it will be understood by those within the art that, various combinations are carried out to technical scheme, are repaiied
Change or equivalent substitution, without departure from the spirit and scope of technical solution of the present invention, it all should cover will in right of the invention
Among scope of summing.
Claims (10)
1. a kind of method for suppressing high-power terminal interference, it is characterised in that including：
S1, the base station subdistrict position according to residing for terminal user, central user and edge customer are divided into by the terminal in cell,
Edge customer is divided into sector-edge user and non-same location edge customer again；
Wherein, the terminal positioned at sector centers is the central user；The terminal of two neighboring sector-edge is in cell
The sector-edge user；It is the non-same location edge customer positioned at the terminal of two neighboring cell edge；
S2, base station obtain the current power value of all terminals in its coverage；
S3, judge in cell and neighbor cell residing for ordinary terminal, the first ratio and default first threshold, Second Threshold and
The magnitude relationship of 3rd threshold value；
Wherein, the neighbor cell includes the high-power terminal for disturbing the cell ordinary terminal；First ratio, is base station institute
In cell and neighbor cell, receive interference power values and be more than or equal to shared by the edge customer for receiving jamming power threshold value
The ratio for the total resources block number that number of resource blocks takes with edge customer；
If first ratio is more than or equal to first threshold, and the high-power terminal is edge customer, the ordinary terminal
For sector-edge user：Then the base station sends the frequency band occupied information of the ordinary terminal to neighbor cell base station, so that phase
Adjacent cell base station is according to shared by the band occupancy of high-power terminal is set to avoid the ordinary terminal by the frequency band occupied information
Frequency band；
S4, be repeated cyclically in step S3 and judge in cell and neighbor cell residing for Generic End-User, the first ratio with it is default
First threshold, the magnitude relationship of Second Threshold and the 3rd threshold value the step of.
2. the method as described in claim 1, it is characterised in that step S3 also includes：
If first ratio is less than first threshold, more than or equal to Second Threshold, and the high-power terminal is edge customer,
The ordinary terminal is non-same location edge customer：
Then the base station sends high-power terminal interference information to neighbor cell base station, so that neighbor cell base station reduction is high-power
The performance number of terminal.
3. method as claimed in claim 2, it is characterised in that the base station sends high-power terminal to neighbor cell base station and done
Information is disturbed, so that neighbor cell base station includes the step of reducing the performance number of high-power terminal：
The base station sends high-power terminal interference information to neighbor cell base station, so that neighbor cell base station is with default first
Step-length reduces the performance number of high-power terminal.
4. method as claimed in claim 2, it is characterised in that step S3 also includes：
If first ratio is less than Second Threshold, more than or equal to the 3rd threshold value：
Then the base station reduces the performance number of ordinary terminal, and sends high-power terminal interference information to neighbor cell, so that phase
Adjacent cell base station reduces the performance number of high-power terminal.
5. method as claimed in claim 4, it is characterised in that the base station reduces the performance number of ordinary terminal, and to adjacent
Cell sends high-power terminal interference information, so that neighbor cell base station includes the step of reducing the performance number of high-power terminal：
The base station reduces ordinary terminal and the power of high-power terminal with neighbor cell base station with default second step-length
Value.
6. the method as described in claim 1, it is characterised in that step S1 is specifically included：
Base station divides the user type of the terminal according to the Reference Signal Received Power value of terminal：
If the Reference Signal Received Power value of terminal is more than user centered on default first power threshold, the terminal；
If the difference of the Reference Signal Received Power value of terminal and the Reference Signal Received Power value of most strong jamming neighbor cell is small
In default power difference threshold value, then the terminal is edge customer.
7. method as claimed in claim 6, it is characterised in that step S1 also includes：
When the terminal is edge customer, closed according to the Reference Signal Received Power value of terminal and the size of the second power threshold
System judges the edge customer type belonging to it：
If the Reference Signal Received Power value of terminal is less than or equal to default second power threshold, the terminal is non-same location side
Edge user；
If the Reference Signal Received Power value of terminal is more than the second power threshold, the terminal is sector-edge user；
Wherein, the first power threshold is more than or equal to the second power threshold.
8. a kind of base station, it is characterised in that including：
Division unit, for the subdistrict position according to residing for terminal, is divided into central user by the terminal in cell and edge is used
Family, edge customer is divided into sector-edge user and non-same location edge customer again；Wherein, the terminal positioned at sector centers is institute
State central user；The terminal of two neighboring sector-edge is the sector-edge user in cell；Positioned at two neighboring small
The terminal of area edge is the non-same location edge customer；
Acquiring unit, the current power value for obtaining all terminals in base station range；
Judge processing unit, for judging in cell residing for ordinary terminal and neighbor cell, the first ratio and default first threshold
The magnitude relationship of value, Second Threshold and the 3rd threshold value；；
Wherein, the neighbor cell includes the high-power terminal of cell ordinary terminal where disturbing the base station；First ratio,
Cell is more than or equal to the edge customer for receiving jamming power threshold value with neighbor cell, receiving interference power values where base station
The ratio for the total resources block number that shared number of resource blocks takes with edge customer；
If first ratio is more than or equal to first threshold, and the high-power terminal is edge customer, the ordinary terminal
For sector-edge user：Then the base station sends the frequency band occupied information of the ordinary terminal to neighbor cell base station, so that phase
Adjacent cell base station is according to shared by the band occupancy of high-power terminal is set to avoid the ordinary terminal by the frequency band occupied information
Frequency band.
9. base station as claimed in claim 1, it is characterised in that described to judge that processing unit is additionally operable in judged result be described
First ratio is less than first threshold, more than or equal to Second Threshold, and the high-power terminal is edge customer, the common end
When holding as non-same location edge customer：
High-power terminal interference information is sent to neighbor cell base station, so that neighbor cell base station reduces the power of high-power terminal
Value.
10. base station as claimed in claim 1, it is characterised in that described to judge that processing unit is additionally operable in judged result as institute
When stating the first ratio less than Second Threshold, more than or equal to three threshold values：
The performance number of ordinary terminal is reduced, and high-power terminal interference information is sent to neighbor cell, so that neighbor cell base station
Reduce the performance number of high-power terminal.
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| CN201610149969.4A CN107204821B (en) | 2016-03-16 | 2016-03-16 | Inhibit method and the base station of high-power terminal interference |
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| CN108934030A (en) * | 2018-07-19 | 2018-12-04 | 武汉虹信通信技术有限责任公司 | A method of avoiding the base station IAB cross jamming |
| CN109714787A (en) * | 2017-10-25 | 2019-05-03 | 普天信息技术有限公司 | Interference signal coordination approach and device |
| CN112954710A (en) * | 2019-11-26 | 2021-06-11 | 中国电信股份有限公司 | Method, system and storage medium for improving uplink coverage capability of terminal |
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| CN108934030A (en) * | 2018-07-19 | 2018-12-04 | 武汉虹信通信技术有限责任公司 | A method of avoiding the base station IAB cross jamming |
| CN108934030B (en) * | 2018-07-19 | 2021-08-03 | 中信科移动通信技术股份有限公司 | Method for avoiding cross interference of IAB base station |
| CN112954710A (en) * | 2019-11-26 | 2021-06-11 | 中国电信股份有限公司 | Method, system and storage medium for improving uplink coverage capability of terminal |
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