CN105517044B - A kind of method and system of interference coordination - Google Patents
A kind of method and system of interference coordination Download PDFInfo
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- CN105517044B CN105517044B CN201510830898.XA CN201510830898A CN105517044B CN 105517044 B CN105517044 B CN 105517044B CN 201510830898 A CN201510830898 A CN 201510830898A CN 105517044 B CN105517044 B CN 105517044B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 230000006854 communication Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000009897 systematic effect Effects 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 description 13
- 230000003993 interaction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
Abstract
The invention discloses a kind of methods of interference coordination, are related to field of communication technology, can be effectively reduced the co-channel interference of different systems.The method include that interfered base station receives the interference measurement report of the edge customer equipment feedback of own services；The interfered base station is reported according to the interference measurement, determines interference coordination information category；The interfered base station notifies the interference coordination information category to the interference base station；The interference base station is adjusted the transmission power of itself according to the interference coordination information category.The embodiment of the present invention is suitable for different system communication processes.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and system of interference coordination.
Background technique
With the growth of number of users and the outburst of mobile big flow business, mobile communications network will face increasing appearance
Measure pressure.From operator's angle, obtaining more frequency spectrum resources and improving the availability of frequency spectrum is the effective means to solve the above problems.
Low-frequency range resource is the gold frequency spectrum of communication system, and the high band of opposite 2GHz or so has the covering gain of 10dB or so, and divides
This partial frequency spectrum of dispensing common carrier is chiefly used in the deployment of 2G/3G network, and the availability of frequency spectrum is unable to satisfy growing stream
Amount demand.Therefore, many operators start to consider backsetting for 2G/3G frequency spectrum both at home and abroad, i.e., dispose on original 2G/3G frequency spectrum
LTE (Long Term Evolution, long term evolution) network, corresponding 2G/3G network will gradually logouts.
In China, since the frequency that user replaces mobile phone is lower compared to the country such as Japan and Korea S, 2G/3G network still has compared with multi-user
Number, frequency spectrum, which is backsetted, to be suitble to using gradually logout, the mode of adaptation to local conditions.As the development of LTE can have following scene: a line city
The hot spot region in city, LTE number of users are gradually more than UMTS ((Universal Mobile Telecommunications
System, Universal Mobile Communication System) number of users, LTE network capacity pressure is larger, can be preferentially by UMTS's in these regions
Frequency spectrum is backsetted as LTE.Assuming that the carrier number of UMTS there are 3,1 to 2 therein can be carried based on network load and number of users
Wave (i.e. 5MHz or 10MHz) is backsetted as LTE, and remaining carrier wave is still used for UMTS network deployment, guarantees covering, backsets as LTE's
Carrier wave can be used as secondary carrier (SCC, subcarrier) and be bundled using carrier aggregation technology and main carrier.
During frequency spectrum is backsetted, the scene that especially above-mentioned partial frequency spectrum is backsetted, i.e. UMTS is not complete, and logout is also needed
The case where providing basis covering, the different systems interference problem between UMTS and LTE is urgent problem to be solved in actual deployment.
Summary of the invention
The embodiment of the present invention provides a kind of method and system of interference coordination, can be effectively reduced the same frequency of different systems
Interference.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the invention provides a kind of methods of interference coordination, are applied to different systematic communication network, the different system
Communication network includes at least interfered base station and interference base station, which comprises
Interfered base station receives the interference measurement report of the edge customer equipment feedback of own services；
The interfered base station is reported according to the interference measurement, determines interference coordination information category；
The interfered base station notifies the interference coordination information category to the interference base station；
The interference base station is adjusted the transmission power of itself according to the interference coordination information category.
The embodiment of the invention also provides a kind of systems of interference coordination, are applied to different systematic communication network, the interference
The system of coordination includes at least interfered base station and interference base station；
The interfered base station, the interference measurement report that the edge customer equipment for receiving own services is fed back；According to
The interference measurement report, determines interference coordination information category；The interference coordination information category is notified to the interference base
It stands；
The interference base station, for being adjusted according to the interference coordination information category to the transmission power of itself.
A kind of method and system of interference coordination provided in an embodiment of the present invention are reported by the UE measurement of interfered cell
Interference information, using threshold value setting by interference be divided into low interference and high interference, pass through Inter-System Information interaction method
Interference coordination information is transmitted, so that power of the interference base station to itself is adjusted to reduce the influence to interfered base station, energy
The co-channel interference of different systems is enough effectively reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the method for interference coordination provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the method for another interference coordination provided in an embodiment of the present invention；
Fig. 3 is a kind of architecture diagram of the system of interference coordination provided in an embodiment of the present invention；
Fig. 4 is the architecture diagram of the system of another interference coordination provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention provides a kind of methods of interference coordination, are applied to different systematic communication network, the different system
Communication network includes at least interfered base station and interference base station, and interfered base station is generally the base station backsetted under network formats,
Such as the NodeB under the standards such as UMTS, and interference base station is the eNodeB under the higher network formats such as LTE.
As shown in Figure 1, which comprises
101, interfered base station receives the interference measurement report of the edge customer equipment feedback of own services.
Wherein, interference measurement report be mainly used for indicating interfered cell to the disturbed condition of interfered cell, it is small to interfere
Area is LTE cell, for interfered cell is UMTS cell, at this point, interference type has LTE base station dry to the downlink of UMTS user
Disturb the uplink interference with LTE user to the base station UMTS.LTE user uses the uplink interference of the base station UMTS, LTE uplink
It is based on the mode of RB (Resource Block, resource block) scheduling, LTE UE closer from UMTS cell is only in the portion of carrier frequency
Divide and carry out uplink transmission on RB, there may be interference in the component frequency resource of carrier frequency；The uplink of UMTS user, which is sent, to be used
Code word is spread, anti-interference ability is stronger.Therefore main interference is that LTE base station interferes the downlink of UMTS user, and the present invention is implemented
The case where what edge customer equipment reported in example is also related this kind of interference.Cell Center User is farther out and SNR from interference base station
(Signal Noise Ratio, signal-to-noise ratio) value is high, and interference effect is smaller, and UMTS edge customer is disturbed larger.UMTS base
It stands and generally configures the periodic interference measurement of its edge UE progress and report, reporting can be reported by interference measurement, wherein carrying
There is interference value, interference value can be obtained by the reception power that the total received power of the UE pilot frequency locations measured subtracts pilot signal.
102, the interfered base station is reported according to the interference measurement, determines interference coordination information category.
In embodiments of the present invention, different classifications is provided with according to the difference of disturbed condition, specific as follows:
Situation one: when the interference value carried in interference measurement report is higher than high interference threshold value, the disturbed base
It stands and interference coordination information category is determined as first kind interference.
The interference that first kind interference expression interfered base station receives interference base station is higher, and can not pass through, which reduces LTE, emits function
The methods of rate solves.In this case, if the interference base station causes higher interference to interfered base station for a long time, it is possible to need
It is removed in frequency spectrum from backsetting, the interference base station is no longer allowed to use this section of frequency spectrum.
Situation two: when the interference value that carries is low dry not higher than high interference threshold value, and in being higher than in interference measurement report
When disturbing threshold value, interference coordination information category is determined as the second class by the interfered base station to be interfered.
The interference that second class interference expression interfered base station receives interference base station is lower, can pass through the inside of interference base station
Adjustment is to be weakened.
Wherein, high interference threshold value and in low interference threshold be all fixed value, can be configured according to actual needs.
In the case where being lower than low interference threshold, it is believed that currently interfere faint, can not adjust.
103, the interfered base station notifies the interference coordination information category to the interference base station.
104, the interference base station is adjusted the transmission power of itself according to the interference coordination information category.
In conjunction with aforementioned interference type, interference base station is also required to be done according to different type when carrying out transmission power adjustment
Corresponding adjustment out, specific as follows:
When the interference coordination information category is that the first kind is interfered, the interference base station stops at edge customer equipment and works as
Emit signal on the preceding carrier wave used.
When the interference coordination information category is that the second class is interfered, the interference base station currently makes in edge customer equipment
Signal transmission power is reduced with fixed step size on carrier wave.
A kind of method of interference coordination provided in an embodiment of the present invention reports interference to believe by the UE measurement of interfered cell
Breath, using threshold value setting by interference be divided into low interference and high interference, transmitted by the method for Inter-System Information interaction dry
Coordination information is disturbed, it, can be effective so that power of the interference base station to itself is adjusted to reduce the influence to interfered base station
Reduce the co-channel interference of different systems.
Further, the embodiment of the present invention is additionally provided herein locating for system locating for related interference base station and interfered base station
The transmission method of interference coordination information category between system.To realize this method, the different systematic communication network also need include
The corresponding RNC (Radio Network Controller, radio network controller) of the interfered base station, SGSN (Serving
GPRS Support Node, Serving GPRS Support Node) and the corresponding MME (Mobility of the interference base station
Management Entity, mobile management entity).
Then interfered base station described in the step 103 notifies the interference coordination information category to the interference base station
Concrete methods of realizing is as shown in Figure 2, comprising:
201, the interfered base station passes through RIM (Radio access network Information
Management, wireless access network information management) message notifies the interference coordination information category to the interfered base station
Corresponding RNC, the RIM message carry the address of the interference coordination information category and the interference base station.
Interfered base station Node B, which sends band to RNC, has the interference of purpose base station address to indicate information.Specific addressing system
It is the identifier (Target eNodeB Identifier) for sending target eNodeB, Node B can pass through Neighboring Relation Table
Obtain the identifier, can also at RNC adding purpose base station address.Specifying information is by following sections group between the system of transmission
At: message header, including type of message (pointing out to be interference coordination message), source address, destination address；Message content is message
Particular content indicates interference coordination information category by character string or bit information.
202, the RNC sends interference instruction information to the SGSN, and the interference indication message carries the interference
The address of coordination information classification and the interference base station.
Be addressed to RNC of the RIM message in the side UMTS terminates, therefore at RNC, the address of Node B is retained in the RNC
Locate, the source address in RIM message is that whole world RNC identifies (Global RNC-Id).
203, interference instruction information is forwarded to the MME by the SGSN.
204, the MME notifies the interference coordination information category to described dry according to the address of the interference base station
Disturb base station.
The embodiment of the invention also provides a kind of systems of interference coordination, to realize its composition of aforementioned each process step
As shown in figure 3, including interfered base station 31 and interference base station 32.
The interfered base station 31, the interference measurement report that the edge customer equipment for receiving own services is fed back；Root
It is reported according to the interference measurement, determines interference coordination information category；The interference coordination information category is notified to the interference
Base station 32.
The interference base station 32, for being adjusted according to the interference coordination information category to the transmission power of itself.
Optionally, as shown in figure 4, the system also includes the interfered base station 31 corresponding RNC33, SGSN34 with
And the corresponding MME35 of the interference base station；
The interfered base station 31 is also used to notify the interference coordination information category to the quilt by RIM message
The corresponding RNC33 of interference base station 31, the RIM message carry the interference coordination information category and the interference base station 32
Address；
The RNC33, for sending interference instruction information to the SGSN, the interference indication message carries described dry
Disturb the address of coordination information classification and the interference base station 32；
The SGSN34, for interference instruction information to be forwarded to the MME；
The MME35 notifies the interference coordination information category to institute for the address according to the interference base station 32
State interference base station 32.
Optionally, the interfered base station 31 is specifically used for being higher than when the interference value carried in interference measurement report
When high interference threshold value, interference coordination information category is determined as first kind interference；It is dry when what is carried in interference measurement report
Value is disturbed not higher than high interference threshold value, and interference coordination information category is determined as the interference of the second class when low interference threshold in being higher than.
Optionally, the interference base station 32 is also used to stop when the interference coordination information category is first kind interference
Only emit signal on the currently used carrier wave of edge customer equipment；When the interference coordination information category is the interference of the second class
When, signal transmission power is reduced with fixed step size on the currently used carrier wave of edge customer equipment.
A kind of system of interference coordination provided in an embodiment of the present invention reports interference to believe by the UE measurement of interfered cell
Breath, using threshold value setting by interference be divided into low interference and high interference, transmitted by the method for Inter-System Information interaction dry
Coordination information is disturbed, it, can be effective so that power of the interference base station to itself is adjusted to reduce the influence to interfered base station
Reduce the co-channel interference of different systems.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Help software that the mode of required common hardware is added to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases
Embodiment.Based on this understanding, the portion that technical solution of the present invention substantially in other words contributes to the prior art
Dividing can be embodied in the form of software products, which stores in a readable storage medium, such as count
The floppy disk of calculation machine, hard disk or CD etc., including some instructions are used so that computer equipment (it can be personal computer,
Server or the network equipment etc.) execute method described in each embodiment of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (4)
1. a kind of method of interference coordination, which is characterized in that be applied to different systematic communication network, the different systematic communication network packet
Include interfered base station, the corresponding RNC of the interfered base station, the corresponding SGSN interference base station of the interfered base station and described
The corresponding MME of interference base station, which comprises
Interfered base station receives the interference measurement report of the edge customer equipment feedback of own services；
The interfered base station is reported according to the interference measurement, is determined interference coordination information category, is specifically included: when described dry
When disturbing the interference value carried in measurement report higher than high interference threshold value, the interfered base station determines interference coordination information category
For first kind interference；When the interference value that carries is not higher than high interference threshold value in interference measurement report, and low interference in being higher than
When threshold value, interference coordination information category is determined as the second class by the interfered base station to be interfered；
The interfered base station notifies the interference coordination information category to the interference base station, comprising: the disturbed base
It stands and notifies to the interfered base station to correspond to by the interference coordination information category by wireless access network information management RIM message
RNC, the RIM message carries the address of the interference coordination information category and the interference base station；The RNC is to institute
It states SGSN and sends interference instruction information, the interference indication message carries the interference coordination information category and the interference
The address of base station；Interference instruction information is forwarded to the MME by the SGSN；The MME is according to the interference base station
Address notifies the interference coordination information category to the interference base station；
The interference base station is adjusted the transmission power of itself according to the interference coordination information category.
2. the method according to claim 1, wherein the interference base station is according to the interference coordination information category
The transmission power of itself is adjusted and includes:
When the interference coordination information category is that the first kind is interfered, the interference base station, which stops at edge customer equipment, currently to be made
Emit signal on carrier wave；
When the interference coordination information category is that the second class is interfered, the interference base station is currently used in edge customer equipment
Signal transmission power is reduced with fixed step size on carrier wave.
3. a kind of system of interference coordination, which is characterized in that be applied to different systematic communication network, the system packet of the interference coordination
Include interfered base station, the corresponding RNC of the interfered base station, the corresponding SGSN of the interfered base station, interference base station and institute
State the corresponding MME of interference base station；
The interfered base station, the interference measurement report that the edge customer equipment for receiving own services is fed back；According to described
Interference measurement report, determines interference coordination information category, specifically includes: when the interference value carried in interference measurement report is high
When high interference threshold value, interference coordination information category is determined as the first kind by the interfered base station to be interfered；When the interference is surveyed
The interference value that carries is not higher than high interference threshold value in amount report, and in being higher than when low interference threshold, the interfered base station will be done
It disturbs coordination information classification and is determined as the interference of the second class；
The interference coordination information category is notified to the interference base station；
The interference base station, for being adjusted according to the interference coordination information category to the transmission power of itself；
The interfered base station is also used to the interference coordination information category through wireless access network information management RIM message
For notice to the corresponding RNC of the interfered base station, the RIM message carries the interference coordination information category and described dry
Disturb the address of base station；
The RNC, for sending interference instruction information to the SGSN, the interference indication message carries the interference coordination
The address of information category and the interference base station；
The SGSN, for interference instruction information to be forwarded to the MME；
The MME notifies the interference coordination information category to the interference base for the address according to the interference base station
It stands.
4. system according to claim 3, which is characterized in that the interference base station is also used to when the interference coordination information
When classification is that the first kind is interfered, stops on the currently used carrier wave of edge customer equipment and emit signal；When the interference coordination
When information category is that the second class is interfered, signal is reduced with fixed step size on the currently used carrier wave of edge customer equipment and emits function
Rate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109644366B (en) * | 2016-09-07 | 2020-12-01 | 华为技术有限公司 | Communication method and base station |
| CN107277843B (en) * | 2017-07-31 | 2020-04-17 | 珠海市魅族科技有限公司 | Wireless communication method, device, terminal and computer readable storage medium |
| CN110602008B (en) * | 2018-06-13 | 2023-04-07 | 中兴通讯股份有限公司 | Method, equipment, device and computer storage medium for suppressing inter-cell interference |
| WO2020056703A1 (en) * | 2018-09-21 | 2020-03-26 | Qualcomm Incorporated | Remote interference management design introduction |
| CN111866942B (en) * | 2019-04-30 | 2022-09-02 | 华为技术有限公司 | Communication method and communication device |
| CN110492954B (en) * | 2019-07-01 | 2021-07-27 | 中国联合网络通信集团有限公司 | Base station control method, first base station and second base station |
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