CN106452651A - Method for realizing dynamic interference coordination based on RB interference information under LTE and system thereof - Google Patents
Method for realizing dynamic interference coordination based on RB interference information under LTE and system thereof Download PDFInfo
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- CN106452651A CN106452651A CN201610883426.5A CN201610883426A CN106452651A CN 106452651 A CN106452651 A CN 106452651A CN 201610883426 A CN201610883426 A CN 201610883426A CN 106452651 A CN106452651 A CN 106452651A
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- interference
- dynamic
- interference information
- interference coordination
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
Abstract
The invention discloses a method for realizing dynamic interference coordination based on RB interference information under LTE and a system thereof and relates to the LTE interference coordination field. The method comprises the following steps of measuring the RB interference information, comprehensively analyzing the RB interference information and calculating an interference result of each RB; according to the interference result of each RB, using a dynamic adjusting algorithm to carry out decision processing and updating a frequency domain resource bitmap; and according to the updated frequency domain resource bitmap, aiming at different types of users, distributing and scheduling RB resources. In the invention, the interference information among cells does not need to be transmitted through an X2 interface or other network interfaces and network resources can be saved.
Description
Technical field
The present invention relates to LTE (Long Term Evolution, Long Term Evolution) interference coordination field, it is specifically related to one
Plant the realization method and system of the dynamic interference coordination Ji Yu RB (Resource Block, Resource Block) interference information under LTE.
Background technology
With the development of communication technology, network structure becomes increasingly complex, grand, macro and micro networks generally existing.?
Under complicated networking scene, the interference problem under LTE (Long Term Evolution, Long Term Evolution) limits to a certain extent
The planning of network and distribution.
In order to solve the interference problem under LTE, existing specification gives multiple methods, and conventional has ICIC (Inter-
Cell interference Coordination, Inter-Cell Interference Coordination), eICIC (enhanced Inter-cell
Interference Coordination, enhancement type district interference coordination).Each equipment supplier is to ICIC or eICIC
All have been provided for quite ripe algorithm design and Realizing Achievement.
In general-purpose algorithm, the realization of dynamic I CIC function depends on X2 interface (standard interface in 3GPP), respectively
Need between base station to transmit interference information by X2 interface, the frequency domain resource in order to adjust inner and outer ring user is distributed, and to reach interference
The purpose coordinated.Transmitted because the interference information of minizone is required for X2 interface, therefore expended substantial amounts of Internet resources.
Content of the invention
The invention aims to overcoming the shortcomings of above-mentioned background technology, providing and under a kind of LTE, being based on RB interference information
Dynamic interference coordination realization method and system, Internet resources can be saved.
The present invention provides a kind of implementation method of the dynamic interference coordination under LTE based on RB interference information, walks including following
Suddenly：
S1, measurement RB interference information, comprehensive analysis RB interference information, calculate the interference result of each RB；
S2, the interference result according to RB, make decisions process using dynamic adjustment algorithm, update frequency domain resource bitmap；
S3, according to the frequency domain resource bitmap after updating, for different types of user, distribute, scheduling RB resource.
On the basis of technique scheme, in step S2, the process of described decision process is：Within the fixed cycle, such as
Really the interference strength of certain RB exceedes the number of times of interference threshold and reaches threshold value, then just adjudicating this RB is strong jamming RB；It is otherwise
Weak jamming RB.
On the basis of technique scheme, in step S2, after updating frequency domain resource bitmap, strong jamming RB is stamped mark
Note.
On the basis of technique scheme, when strong jamming RB is marked, will be corresponding for strong jamming RB in RB bitmap
Bit position is 1, and other RB are 0.
On the basis of technique scheme, in step S3, when distribution, scheduling RB resource, central user uses whole RB,
Edge customer must not use the RB of serious interference, that is, must not be using the RB for 1 in RB bitmap.
What the present invention also provided the dynamic interference coordination under a kind of LTE based on RB interference information realizes system, this system bag
Include measurement module, interference coordination module, scheduler module, wherein：
Described measurement module is used for：Measurement RB interference information, comprehensive analysis RB interference information, calculate the interference of each RB
As a result, issue interference coordination module；
Described interference coordination module is used for：Receive the RB interference result that measurement module is sent, entered using dynamic adjustment algorithm
Row decision process, updates frequency domain resource bitmap, issues scheduler module；
Described scheduler module is used for：Receive the frequency domain resource bitmap that interference coordination module is sent, for different types of use
Family, distribution, scheduling RB resource.
On the basis of technique scheme, the process of described decision process is：Within the fixed cycle, if certain RB
The number of times that interference strength exceedes interference threshold reaches threshold value, then just adjudicating this RB is strong jamming RB；It is otherwise weak jamming RB.
On the basis of technique scheme, after described interference coordination module updates frequency domain resource bitmap, by strong jamming RB
Mark.
On the basis of technique scheme, when strong jamming RB is marked by described interference coordination module, by RB bitmap
The corresponding bit position of middle strong jamming RB is 1, and other RB are 0.
On the basis of technique scheme, described scheduler module is processed accordingly according to user type：Center is used
Family uses whole RB, and edge customer must not use the RB of serious interference, that is, must not be using the RB for 1 in RB bitmap.
Compared with prior art, advantages of the present invention is as follows：
(1) the RB interference information that the present invention is measured using itself, dynamic adjustment frequency domain resource bitmap, to UE (User
Equipment, user equipment) distribution RB when can avoid by strongly disturbing RB, thus reaching minizone dynamic interference coordination
Purpose.The invention enables presence of intercell interference information does not need X2 interface or other network interfaces to transmit, net can be saved
Network resource.
(2) interference information of medium and small interval of the present invention does not need X2 interface or other network interfaces to transmit, and can drop
The cost linked up between low base station and time-consuming.
(3) traditional interference coordination schemes need integrated network programme, to each cell configuration interference coordination frequency domain money
Source bitmap, and the present invention does not rely on neighboring BS relationship, but the adjustment completing itself frequency domain resource of self-configuring, more conducively network
Planning and layout.
Brief description
Fig. 1 is the flow process of the implementation method of the dynamic interference coordination under LTE in the embodiment of the present invention based on RB interference information
Figure.
Fig. 2 is the structure realizing system of the dynamic interference coordination under LTE in the embodiment of the present invention based on RB interference information
Block diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of reality of the dynamic interference coordination under LTE based on RB interference information
Existing method, comprises the following steps：
S1, measurement RB interference information, comprehensive analysis RB interference information, calculate interference result Ival of each RB；
Measuring apparatus include base station and terminal, and end side measures the interference information of each RB descending, and base station side measurement is up
The interference information of each RB, interference information includes RB bottom and makes an uproar.
S2, interference result Ival according to RB, make decisions process using dynamic adjustment algorithm, update frequency domain resource position
Figure；
The process of decision process is：Within the fixed cycle, if the interference strength of certain RB (Ival) exceedes interference threshold
(Ithrd) number of times reaches threshold value (Tthrd), then just adjudicating this RB is strong jamming RB；It is otherwise weak jamming RB；
After updating frequency domain resource bitmap, strong jamming RB is marked.For example, by corresponding for strong jamming RB in RB bitmap ratio
Special position is 1, and other RB are set to 0.
S3, according to the frequency domain resource bitmap after updating, for different types of user, distribute, scheduling RB resource.
For example：Central user can use whole RB, and edge customer must not use the RB of serious interference, must not use RB position
In figure is 1 RB.
Shown in Figure 2, the embodiment of the present invention also provides the dynamic interference coordination under a kind of LTE based on RB interference information
Realize system, including measurement module, interference coordination module, scheduler module, wherein：
Measurement module is used for：Measurement RB interference information, comprehensive analysis RB interference information, calculate the interference result of each RB
Ival, issues interference coordination module；
Measuring apparatus include base station and terminal, and end side measures the interference information of each RB descending, and base station side measurement is up
The interference information of each RB, interference information includes RB bottom and makes an uproar；
Interference coordination module is used for：Receive RB interference result Ival that measurement module is sent, entered using dynamic adjustment algorithm
Row decision process, updates frequency domain resource bitmap, issues scheduler module；
The process of decision process is：Within the fixed cycle, if the interference strength of certain RB (Ival) exceedes interference threshold
(Ithrd) number of times reaches threshold value (Tthrd), then just adjudicating this RB is strong jamming RB；It is otherwise weak jamming RB；
After interference coordination module updates frequency domain resource bitmap, strong jamming RB is marked.
For example, by the corresponding bit of strong jamming RB (bit) position in RB Bitmap (bitmap) be 1, other RB be 0.
Scheduler module is used for：Receive the frequency domain resource bitmap that interference coordination module is sent, for different types of user, point
Join, dispatch RB resource.
Scheduler module is processed accordingly according to user type, for example：Central user can use whole RB, edge customer
The RB of serious interference must not be used, that is, must not be using the RB for 1 in RB Bitmap.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change
Within the scope of the claims in the present invention and its equivalent technologies, then these modifications and modification are also in protection scope of the present invention for type
Within.
The prior art that the content not described in detail in description is known to the skilled person.
Claims (10)
1. under a kind of LTE the implementation method of the dynamic interference coordination based on RB interference information it is characterised in that including following walking
Suddenly：
S1, measurement RB interference information, comprehensive analysis RB interference information, calculate the interference result of each RB；
S2, the interference result according to RB, make decisions process using dynamic adjustment algorithm, update frequency domain resource bitmap；
S3, according to the frequency domain resource bitmap after updating, for different types of user, distribute, scheduling RB resource.
2. under LTE as claimed in claim 1 the dynamic interference coordination based on RB interference information implementation method, its feature exists
In：In step S2, the process of described decision process is：Within the fixed cycle, if the interference strength of certain RB exceedes interference door
The number of times of limit reaches threshold value, then just adjudicating this RB is strong jamming RB；It is otherwise weak jamming RB.
3. under LTE as claimed in claim 2 the dynamic interference coordination based on RB interference information implementation method, its feature exists
In：In step S2, after updating frequency domain resource bitmap, strong jamming RB is marked.
4. under LTE as claimed in claim 3 the dynamic interference coordination based on RB interference information implementation method, its feature exists
In：When strong jamming RB is marked, the corresponding bit position of strong jamming RB in RB bitmap is 1, other RB are 0.
5. under LTE as claimed in claim 4 the dynamic interference coordination based on RB interference information implementation method, its feature exists
In：In step S3, when distribution, scheduling RB resource, central user uses whole RB, and edge customer must not use serious interference
RB, that is, must not be using the RB for 1 in RB bitmap.
6. under a kind of LTE the dynamic interference coordination based on RB interference information realize system it is characterised in that：This system includes surveying
Amount module, interference coordination module, scheduler module, wherein：
Described measurement module is used for：Measurement RB interference information, comprehensive analysis RB interference information, calculate the interference knot of each RB
Really, issue interference coordination module；
Described interference coordination module is used for：Receive the RB interference result that measurement module is sent, sentenced using dynamic adjustment algorithm
Certainly process, update frequency domain resource bitmap, issue scheduler module；
Described scheduler module is used for：Receive the frequency domain resource bitmap that interference coordination module is sent, for different types of user, point
Join, dispatch RB resource.
7. under LTE as claimed in claim 6 the dynamic interference coordination based on RB interference information realize system, its feature exists
In：The process of described decision process is：Within the fixed cycle, if the number of times that the interference strength of certain RB exceedes interference threshold reaches
To threshold value, then just adjudicating this RB is strong jamming RB；It is otherwise weak jamming RB.
8. under LTE as claimed in claim 7 the dynamic interference coordination based on RB interference information realize system, its feature exists
In：After described interference coordination module updates frequency domain resource bitmap, strong jamming RB is marked.
9. under LTE as claimed in claim 8 the dynamic interference coordination based on RB interference information realize system, its feature exists
In：When strong jamming RB is marked by described interference coordination module, the corresponding bit position of strong jamming RB in RB bitmap is 1,
Other RB are 0.
10. under LTE as claimed in claim 9 the dynamic interference coordination based on RB interference information realize system, its feature exists
In：Described scheduler module is processed accordingly according to user type：Central user uses whole RB, and edge customer must not use
The RB of serious interference, that is, must not be using the RB for 1 in RB bitmap.
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Cited By (1)
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| CN111107647A (en) * | 2017-05-03 | 2020-05-05 | Oppo广东移动通信有限公司 | Wireless communication method, terminal equipment and network equipment |
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| CN102271337A (en) * | 2010-06-03 | 2011-12-07 | 中兴通讯股份有限公司 | Method and device for processing intercell interference coordination information |
| US20160006529A1 (en) * | 2013-03-22 | 2016-01-07 | Lg Electronics Inc. | Method and apparatus for performing interference coordination in wireless communication system |
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| CN102131246A (en) * | 2010-01-14 | 2011-07-20 | 电信科学技术研究院 | Method and device for coordinating dynamic interference of cell inside base station |
| CN102271337A (en) * | 2010-06-03 | 2011-12-07 | 中兴通讯股份有限公司 | Method and device for processing intercell interference coordination information |
| US20160006529A1 (en) * | 2013-03-22 | 2016-01-07 | Lg Electronics Inc. | Method and apparatus for performing interference coordination in wireless communication system |
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| CN111107647A (en) * | 2017-05-03 | 2020-05-05 | Oppo广东移动通信有限公司 | Wireless communication method, terminal equipment and network equipment |
| CN111107647B (en) * | 2017-05-03 | 2021-03-05 | Oppo广东移动通信有限公司 | Wireless communication method, terminal equipment and network equipment |
| TWI754051B (en) * | 2017-05-03 | 2022-02-01 | 大陸商Ｏｐｐｏ廣東移動通信有限公司 | Method for wireless communication, and terminal equipment |
| US11317419B2 (en) | 2017-05-03 | 2022-04-26 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless communication method, terminal device, and network device |
| US11706786B2 (en) | 2017-05-03 | 2023-07-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless communication method, terminal device, and network device |
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