CN107769885A - A kind of interference elimination method, base station, terminal and system - Google Patents
A kind of interference elimination method, base station, terminal and system Download PDFInfo
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- CN107769885A CN107769885A CN201610700413.XA CN201610700413A CN107769885A CN 107769885 A CN107769885 A CN 107769885A CN 201610700413 A CN201610700413 A CN 201610700413A CN 107769885 A CN107769885 A CN 107769885A
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- interfered cell
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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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Abstract
The invention discloses a kind of interference elimination method, base station, terminal and communication system, is related to the communications field, and method therein includes：Serving BS receives the location information of terminal transmission or needs disturb the interfered cell mark of elimination；Serving BS determines that terminal disturb the interfered cell of elimination and interference eliminates auxiliary information according to location information, or, acquisition interference is identified according to interfered cell and eliminates auxiliary information；Serving BS issues interference to terminal and eliminates configured information, so that terminal eliminates configured information based on interference performs interference elimination.Interference elimination method, base station, terminal and the communication system of the present invention, suitable under the scene of super-intensive networking, the interference of serial interference elimination interfered cell can be adaptively carried out according to customer location and suffered disturbed condition, performance can be obviously improved under the complicated intensive networking scene of interference environment, do not increase the additional complexity of receiver, existing system is changed smaller.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of interference elimination method, base station, terminal and communication system.
Background technology
5th generation mobile phone mobile communication standard, also referred to as the 5th third-generation mobile communication technology, are abbreviated as 5G, after being 4G
Extension.To be increased than 2010 by expecting the flow of the year two thousand twenty mobile data by 500-1000 times, and 5G systems need corresponding lifting
Network capacity is to meet data service burst increased requirement.The big bandwidth such as ultra high-definition video, mass data are shared, 3D game
Using proposing higher demand to traffic rate.5G systems need to support higher data rate to support following big bandwidth industry
Business, and provided for each user in network and ensure higher, more fair speed experience.The traffic demand one of hot zones
It is directly the major issue of operator's urgent need to resolve, this problem will seem especially pronounced in following 5G networks.For following focus
The demand that regional 500-1000 times of mobile data flow increases, it is rare due to low-frequency range frequency spectrum resource, only rely on lifting frequency spectrum
Efficiency can not meet the needs of mobile data flow growth.Small base station density is that solve hot zones movement in increase unit area
The most effective means that data traffic is skyrocketed through.
IMT-2020 (5G) promotes composition to stand the pass under super-intensive networking (UDN) special topic group progress super-intensive networking scene
Research on Key.One of three big focus on research direction of the interference management as the special topic group are of great interest.Super-intensive
Networking interference management techniques also become 3GPP very important contents in the registration study carried out for 5G.Interference management can
To be carried out from transmitting terminal, can also be carried out from receiving terminal.AF panel is carried out with eliminating relative in transmitting terminal, receiving terminal interference
The cost for eliminating reception technique is lower.A kind of IRC in receiving terminal disturb elimination is proposed in 3GPP Rel-11
(Interference Rejection Combining) technology, interference noise covariance matrix is estimated with indirect mode
Afterwards, the most strong jamming from macro base station that user is subject to is eliminated.Its shortcoming is only to carry out AF panel to the most strong jamming being subject to,
And because interference noise covariance matrix is not that very accurately obtainable performance gain is had an impact.In 3GPP
AF panel reception scheme NAICS (the Network Assistant based on network assistance that Rel-12 is proposed
Interference Cancellation Scheme) by the relevant information of interference needed for subnetwork auxiliary acquisition, such as：
Modulation coding mode, pilot configuration etc..Its shortcoming is that the most strong jamming for only supporting to be subject to user at present suppresses, and due to
Network assistance can bring the increase of network-signaling load, but the performance that its interference eliminates is better than IRC.Both the above 3GPP is defined
Receiver be only capable of the most strong jamming being subject in the single suppression user of receiving terminal.It will be to meet that 5G superelevation rate requirements are entered in future
Under capable super-intensive network deployment scenarios disturbed condition can become it is more acute with it is complicated, have a strong impact on that above traditional scheme can obtain
The performance gain obtained.
The content of the invention
In view of this, the invention solves a technical problem be to provide a kind of interference elimination method, base station, terminal and
Communication system.
According to one embodiment of present invention, there is provided a kind of interference elimination method, including：Serving BS receives terminal hair
The location information or needs sent disturb the interfered cell mark of elimination；The serving BS determines according to the location information
The terminal disturb the interfered cell of elimination and interference eliminates auxiliary information, or, identified according to the interfered cell
Obtain interference and eliminate auxiliary information；The serving BS issues interference to the terminal and eliminates configured information, so that the terminal
Configured information is eliminated based on the interference and performs interference elimination；Wherein, the interference eliminates configured information and carries progress in need
The interfered cell information eliminated and interference is disturbed to eliminate auxiliary information.
Alternatively, the serving BS receives the location information of terminal transmission or needs carry out disturbing the interference of elimination small
Area's mark includes：The terminal obtains the interfering signal power of interfered cell by measuring the reference signal power of interfered cell；
The terminal determines to need to carry out interfered cell and the cell ID for disturbing elimination according to the interfering signal power；The terminal
The cell ID is uploaded into serving BS.
Alternatively, the terminal according to the interfering signal power determine need carry out disturb elimination interfered cell and
Cell ID includes：The terminal calculates each interfering signal power and the ratio of whole interfering signal power summations, obtains each interference
The interfering signal power accounting of cell；The terminal by the interfering signal power accounting and default thresholding rule carry out
Match somebody with somebody, determined to need to eliminate the quantity and cell ID of the interfered cell of interference according to matching result.
Alternatively, the terminal interfering signal power accounting is matched with default thresholding rule, according to
Determine to need the quantity of the interfered cell of elimination interference and cell ID to include with result：In the default threshold value group of the terminal
There is n power threshold, and the n power threshold is ranked up by the sequence of numerical value；The terminal is by the interference
Signal power accounting is ranked up by the sequence of numerical value, and n interfering signal power accounting before extraction；From the preceding n
Maximum interfering signal power accounting starts in interfering signal power accounting, successively that interfering signal power accounting is identical with sequence number
Power threshold be compared；When judging that interfering signal power accounting is more than sequence number identical power threshold, then stop
Compare, and the interfered cell corresponding to the interfering signal power accounting that will have been carried out comparing is defined as needs and eliminates interference
Cell ID corresponding to interfered cell and acquisition.
Alternatively, the serving BS receives the location information of terminal transmission or needs carry out disturbing the interference of elimination small
Area's mark includes：Positional information is sent to the serving BS by the terminal by up signaling；Wherein, the terminal uses
Localization method include：OTDOA、GNSS.
Alternatively, the serving BS determines that the terminal disturb the interfered cell of elimination according to the location information
And interference eliminates auxiliary information and included：The serving BS determines that the terminal carries out interference elimination according to the positional information
Interfered cell, and interference base station corresponding to interfered cell；The serving BS with the interface of the interference base station by obtaining
The terminal is taken disturb the interference of elimination to eliminate auxiliary information.
According to another aspect of the present invention, there is provided a kind of terminal, including：Jamming power acquisition module, for passing through measurement
The reference signal power of interfered cell obtains the interfering signal power of interfered cell；Interfered cell determining module, for according to institute
Interfering signal power is stated to determine to need to carry out interfered cell and the cell ID for disturbing elimination；Information uploading module, for by institute
State cell ID and upload to serving BS；Execution module is disturbed, the interference for being issued based on serving BS is eliminated configured information and held
Row interference eliminates；Wherein, it is described interference eliminate configured information carry it is in need carry out disturb elimination interfered cell information and
Interference eliminates auxiliary information.
Alternatively, the interfered cell determining module, for calculating each interfering signal power and whole interfering signal powers
The ratio of summation, obtain the interfering signal power accounting of each interfered cell；By the interfering signal power accounting and default door
Limit gauge is then matched, and is determined to need to eliminate the quantity and cell ID of the interfered cell of interference according to matching result.
Alternatively, the interfered cell determining module, including：Thresholding setting unit, for n in predetermined threshold value group
Power threshold, and the n power threshold is ranked up by the sequence of numerical value；Power ratio sequencing unit, for by institute
Interfering signal power accounting is stated to be ranked up by the sequence of numerical value, and n interfering signal power accounting before extraction；Cell is true
Order member, for maximum interfering signal power accounting since the preceding n interfering signal power accounting, successively will disturb
Signal power accounting is compared with sequence number identical power threshold；When judge interfering signal power accounting be more than sequence number it is identical
Power threshold when, then stop comparing, and it is small that interference corresponding to the interfering signal power accounting that compares will have been carried out
Area is defined as needing to eliminate cell ID corresponding to the interfered cell disturbed and acquisition.
Alternatively, described information uploading module, for positional information to be sent into the serving BS by up signaling；
Wherein, the localization method that the terminal uses includes：OTDOA、GNSS；The serving BS determines institute according to the location information
State interfered cell and interference elimination auxiliary information that terminal disturb elimination.
According to a further aspect of the invention, there is provided a kind of base station, including：Data obtaining module, sent out for receiving terminal
The location information or needs sent disturb the interfered cell mark of elimination；Determining module is disturbed, for believing according to the positioning
Breath determines that the terminal disturb the interfered cell of elimination and interference eliminates auxiliary information, or, it is small according to the interference
Area's mark obtains interference and eliminates auxiliary information；Information issuance unit, configured information is eliminated for issuing interference to the terminal, with
Make the terminal be based on the interference elimination configured information execution interference to eliminate；Wherein, the interference eliminates configured information and carried
The interfered cell information in need for carrying out disturbing elimination and interference eliminate auxiliary information.
Alternatively, the interference determining module, it is additionally operable to determine that the terminal carries out interference and disappeared according to the positional information
The interfered cell removed, and interference base station corresponding to interfered cell；By obtaining the terminal with the interface of the interference base station
Disturb the interference of elimination to eliminate auxiliary information.
According to a further aspect of the invention, there is provided a kind of communication system, including：As described above terminal, as described above
Base station.
Interference elimination method, base station, terminal and the communication system of the present invention, according to customer location and feelings can be disturbed
Condition adaptively carries out the interference of serial interference elimination interfered cell, and one or more are performed according to customer location and disturbed condition
Interference cancellation operation, performance can be obviously improved under the complicated intensive networking scene of interference environment.
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, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet according to one embodiment of the interference elimination method of the present invention；
Fig. 2 is the schematic flow sheet according to another embodiment of the interference elimination method of the present invention；
Fig. 3 is the schematic flow sheet according to another embodiment of the interference elimination method of the present invention；
Fig. 4 is the schematic diagram of the descending overall interference horizontal analysis of super-intensive networking；
Fig. 5 is super-intensive networking scene diverse location user's disturbed condition；
Fig. 6 is the module diagram according to one embodiment of the terminal of the present invention；
Fig. 7 is the module diagram of the interfered cell determining module in one embodiment according to the terminal of the present invention；
Fig. 8 is the module diagram according to one embodiment of the base station of the present invention.
Embodiment
The present invention is described more fully with reference to the accompanying drawings, wherein illustrating the exemplary embodiment of the present invention.Under
The accompanying drawing that face will be combined in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, and shows
So, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is all belonged to
In the scope of protection of the invention.Many descriptions are carried out to technical scheme with reference to each figure and embodiment.
Fig. 1 be according to the present invention interference elimination method one embodiment schematic flow sheet, as shown in Figure 1：
Step 101, serving BS receives the location information of terminal transmission or needs disturb the interfered cell of elimination
Mark.
Step 102, serving BS determines that terminal carries out disturbing the interfered cell of elimination and interference to disappear according to location information
Except auxiliary information, or, identified according to interfered cell and obtain interference elimination auxiliary information.
Step 103, serving BS issues interference to terminal and eliminates configured information, so that terminal is based on interference and eliminates instruction letter
Breath performs interference and eliminated.
Interference eliminates the configured information carrying interfered cell information in need for carrying out disturbing elimination and interference eliminates auxiliary
Information, interference, which eliminates auxiliary information, to be included：Modulation coding mode of the down channel of interfered cell etc., terminal-pair interfered cell
Interference signal is demodulated, decoded, and interference signal component is eliminated from reception signal using the processing gain of receiver.
Interference elimination method in above-described embodiment, the scene for the super-intensive networking that is particularly suitable for use in can be according to user position
Put and interference of the serial interference elimination interfered cell to down channel is adaptively carried out with suffered disturbed condition.
Terminal by measure interfered cell reference signal power obtain interfered cell interfering signal power, terminal according to
Interfering signal power determines to need to carry out interfered cell and the cell ID for disturbing elimination, such as Physical Cell Identifier PCI, terminal
Cell ID is uploaded into serving BS.
Terminal calculates each interfering signal power and the ratio of whole interfering signal power summations, obtains the dry of each interfered cell
Disturb signal power accounting.Terminal is matched interfering signal power accounting with default thresholding rule, true according to matching result
The fixed quantity and cell ID for needing to eliminate the interfered cell of interference.
There is n power threshold in the default threshold value group of terminal, and n power threshold is entered by the sequence of numerical value
Row sequence, n therein can be configured according to system, for example, n=3,4,5 etc..Terminal is by interfering signal power accounting by number
The sequence of value is ranked up, and n interfering signal power accounting before extraction.
Since preceding n interfering signal power accounting maximum interfering signal power accounting, successively by interference signal work(
Rate accounting is compared with sequence number identical power threshold.When judging that interfering signal power accounting is more than sequence number identical power
During threshold value, then stop comparing, and the interfered cell corresponding to the interfering signal power accounting that will have been carried out comparing determines
To need to eliminate cell ID corresponding to the interfered cell disturbed and acquisition.
Fig. 2 be according to the present invention interference elimination method another embodiment schematic flow sheet, as shown in Figure 2：
Step 201, around user terminal measurement n interfered cell reference signal power according to power by being arranged to weak by force
To set I={ I1, I2 ..., In }.
Step 202, preceding 3 interference signals account for the ratio of total interference signal, interference signal work(in user terminal set of computations I
Rate accounting is DIP={ DIP1, DIP2, DIP3 }.
Step 203, DIP values and threshold value group Th={ Th1, Th2, Th3 } are compared by user terminal, judge that interference disappears
Except number, parameter N is designated as.
For example, have 3 power thresholds Th1, Th2, Th3 in the default threshold value group of terminal, and 3 power thresholds
Th1, Th2, Th3 are ranked up by the sequence of numerical value, as shown in table 1 below：
| Interfering signal power accounting DIP | Interference eliminates number N |
| DIP1>Th1 (65%) | 1 |
| DIP1<Th1,DIP2>Th2 (30%) | 2 |
| DIP1<Th1,DIP2<Th2,DIP3>Th3 (20%) | 3 |
| … | … |
Table 1- interference eliminates number and judges signal table
Since the interfering signal power accounting DIP1 of maximum, successively by interfering signal power accounting and sequence number identical work(
Rate threshold value is compared, i.e. DIP1 is compared with Th1, and DIP2 is compared with Th2, and DIP3 is compared with Th3.When sentencing
When disconnected interfering signal power accounting is more than sequence number identical power threshold, then stop comparing, and will have been carried out what is compared
Interfered cell corresponding to interfering signal power accounting is defined as needing to eliminate cell corresponding to the interfered cell disturbed and acquisition
ID。
As shown in table 1, if DIP1 is more than Th1, stopping is compared, and the interfering signal power that compares will have been carried out
Interfered cell corresponding to accounting DIP1 be defined as need eliminate interference interfered cell and acquisition corresponding to cell ID, then carry out
The number for disturbing the interfered cell eliminated is 1.
When DIP1 is less than Th1, then DIP2 is compared with Th2, if DIP2 is more than Th2, stopping is compared, and by
The interfered cell corresponding to interfering signal power accounting DIP1 and DIP2 compared is defined as needing to eliminate the dry of interference
Cell ID corresponding to disturbing cell and acquisition, then the number for carrying out disturbing the interfered cell of elimination is 2.
When DIP1 is less than Th1, then DIP2 is compared with Th2, if DIP2 is less than Th2, DIP3 and Th3 and compared
Compared with if DIP3 is more than Th3, having been carried out corresponding to interfering signal power accounting DIP1, DIP2, DIP3 for comparing
Interfered cell is defined as needing cell ID corresponding to the interfered cell of elimination interference and acquisition, then the interference for carrying out interference elimination is small
The number in area is 3.If DIP3 is less than Th3, it not can determine that needs disturb the interfered cell of elimination, not to serving BS
Report interfered cell ID.
Step 204, user terminal by up signaling to the N number of interfered cell ID of serving base stations report.
Step 205, the interfered cell information of acquisition is informed user by serving BS by downlink signaling, for example, interference letter
Number modulation coding mode etc..
Step 206, user eliminates the interfered cell information execution interference elimination of number N and network assistance according to interference.
Positional information is sent to serving BS by terminal by up signaling, and the localization method that terminal uses includes：OTDOA
(Observed Time Difference of Arrival, observing reaching time-difference), GNSS (Global Navigation
Satellite System, GPS) etc..Serving BS determines that terminal carries out interference elimination according to positional information
Interfered cell, and interference base station corresponding to interfered cell, for example, serving BS passes through and the interface of interference base station obtains eventually
End disturb the interference of elimination to eliminate auxiliary information.
Fig. 3 be according to the present invention interference elimination method another embodiment schematic flow sheet, as shown in Figure 3：
Step 301, user terminal is positioned using technologies such as OTDOA/GNSS, and position is sent by up signaling
To serving BS.
Step 302, serving BS disappears according to the user terminal receiver interference of the position judgment of the user terminal received
The number for the interfered cell removed, it is designated as parameter N.
Serving BS is according to the position of user terminal, and the topology for the wireless network disposed in the position of user terminal
Structure determination interfered cell, and interference base station is determined, interactive information between serving BS and interference base station, for example, serving BS
With interference base station by S1 interfaces or X2 interface interactive information, the control of the physical downlink control channel PDCCH of interference base station is obtained
Information processed and channel status.
Step 203, serving BS sends for the interfered cell for carrying out disturbing elimination by downlink signaling to user terminal
Number N and network-assist information, network-assist information are modulation coding information of interfered cell etc..
Step 204, user terminal disturb the number N of the interfered cell of elimination and network assistance to believe according to what is received
Breath performs interference and eliminated.
In one embodiment, from simulation result as can be seen that legacy network most strong jamming DIP1 accountings are usually
60%-80%, most strong jamming accounting is remarkably decreased as 30%-40% under super-intensive networking scene, and interference source is numerous, such as Fig. 4
It is shown.Diverse location user disturbed condition has a long way to go under super-intensive networking scene.Edge customer disturbed condition most serious, embody
Small in most strong jamming accounting, gap is small between adjacent strong jamming；Cell geometry 50%-tile user's disturbed condition is obvious
It is better than 95%-tile user, as shown in Figure 5.
The interference elimination method of above-described embodiment, suitable under the scene of super-intensive networking, can according to customer location and
Suffered disturbed condition adaptively carries out the interference of serial interference elimination interfered cell down channel, according to customer location and interference
Situation performs one or more interference cancellation operations, and performance can be obviously improved under the complicated intensive networking scene of interference environment,
Do not increase the additional complexity of receiver, existing system is changed smaller.
In one embodiment, as shown in fig. 6, the present invention provides a kind of terminal 40, including：Jamming power acquisition module
41st, interfered cell determining module 42 and information uploading module 43.Jamming power acquisition module 41 is by measuring the ginseng of interfered cell
Examine the interfering signal power that signal power obtains interfered cell.
Interfered cell determining module 42 according to interfering signal power determine need carry out disturb elimination interfered cell and
Cell ID.Cell ID is uploaded to serving BS by information uploading module 43.Interference execution module 43 is issued based on serving BS
Interference eliminates configured information and performs interference elimination, and interference eliminates configured information and carries the interfered cell in need for carrying out disturbing elimination
Information and interference eliminate auxiliary information.
Positional information is sent to serving BS, the localization method that terminal uses by information uploading module 44 by up signaling
Including：OTDOA, GNSS etc..Serving BS determines that terminal disturb interfered cell and the interference of elimination according to location information
Eliminate auxiliary information.
Interfered cell determining module 42 calculates the ratio of each interfering signal power and whole interfering signal power summations, obtains
The interfering signal power accounting of each interfered cell, interfering signal power accounting is matched with default thresholding rule, according to
Matching result determines to need to eliminate the quantity and cell ID of the interfered cell of interference.
As shown in fig. 7, interfered cell determining module 42 includes：Thresholding setting unit 421, the and of power ratio sequencing unit 422
Cell determining unit 423.N power threshold in the predetermined threshold value group of thresholding setting unit 421, and n power threshold is pressed
The sequence of numerical value is ranked up.Power ratio sequencing unit 422 is entered interfering signal power accounting by the sequence of numerical value
Row sequence, and n interfering signal power accounting before extraction.
The interfering signal power accounting maximum since preceding n interfering signal power accounting of cell determining unit 423, according to
It is secondary by interfering signal power accounting compared with sequence number identical power threshold, when judging that interfering signal power accounting is more than
During sequence number identical power threshold, then cell determining unit 423 stops comparing, and the interference signal that compares will have been carried out
Interfered cell corresponding to power accounting is defined as needing to eliminate cell ID corresponding to the interfered cell disturbed and acquisition.
In one embodiment, as shown in figure 8, the present invention provides a kind of base station 50, including：Data obtaining module 51, do
Disturb determining module 52 and information issuance unit 53.The location information or needs that the receiving terminal of data obtaining module 51 is sent are done
Disturb the interfered cell mark of elimination.Interference determining module 52 determines that terminal disturb the interfered cell of elimination according to location information
And interference eliminates auxiliary information, or, acquisition interference is identified according to interfered cell and eliminates auxiliary information.
Information issuance unit 53 issues interference to terminal and eliminates configured information, so that terminal is based on interference and eliminates configured information
Interference is performed to eliminate；Wherein, interference eliminates configured information and carries the interfered cell information in need for carrying out disturbing elimination and do
Disturb elimination auxiliary information.
Interference determining module 52 determines that terminal disturb the interfered cell of elimination, and interfered cell according to positional information
Corresponding interference base station, disturb the interference of elimination to eliminate auxiliary information by obtaining terminal with the interface of interference base station.
In one embodiment, the present invention provides a kind of communication system, including terminal as above, base station as above.
Interference elimination method, base station, terminal and the communication system that above-described embodiment provides, suitable for the field of super-intensive networking
Under scape, the interference of serial interference elimination interfered cell, root can be adaptively carried out according to customer location and suffered disturbed condition
One or more interference cancellation operations are performed according to customer location and disturbed condition, under the complicated intensive networking scene of interference environment
Performance can be obviously improved, does not increase the additional complexity of receiver, existing system is changed smaller.
The method and system of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combinations come realize the present invention method and system.The said sequence of the step of for method is only
Order described in detail above is not limited in order to illustrate, the step of method of the invention, is especially said unless otherwise
It is bright.In addition, in certain embodiments, the present invention can be also embodied as recording program in the recording medium, these programs include
For realizing the machine readable instructions of the method according to the invention.Thus, the present invention also covering storage is used to perform according to this hair
The recording medium of the program of bright method.
Description of the invention provides for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Select and retouch
State embodiment and be to more preferably illustrate the principle and practical application of the present invention, and one of ordinary skill in the art is managed
The present invention is solved so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (13)
- A kind of 1. interference elimination method, it is characterised in that including：Serving BS receives the location information of terminal transmission or needs disturb the interfered cell mark of elimination；Serving BS according to the location information determine the terminal carry out disturb elimination interfered cell and interference eliminate it is auxiliary Supplementary information, or, identified according to the interfered cell and obtain interference elimination auxiliary information；The serving BS issues interference to the terminal and eliminates configured information, so that the terminal is based on the interference elimination and referred to Show that information performs interference and eliminated；Wherein, the interference eliminates the configured information carrying interfered cell information in need for carrying out disturbing elimination and interference eliminates Auxiliary information.
- 2. the method as described in claim 1, it is characterised in that the serving BS receive terminal transmission location information or The interfered cell mark for needing to carry out disturbing elimination includes：The terminal obtains the interfering signal power of interfered cell by measuring the reference signal power of interfered cell；The terminal determines to need to carry out interfered cell and the cell ID for disturbing elimination according to the interfering signal power；The cell ID is uploaded to the serving BS by the terminal.
- 3. method as claimed in claim 2, it is characterised in that the terminal according to the interfering signal power determine need into The interfered cell and cell ID that row interference eliminates include：The terminal calculates each interfering signal power and the ratio of whole interfering signal power summations, obtains the dry of each interfered cell Disturb signal power accounting；The terminal is matched the interfering signal power accounting with default thresholding rule, and need are determined according to matching result Eliminate the quantity and cell ID of the interfered cell of interference.
- 4. method as claimed in claim 3, it is characterised in that the terminal by the interfering signal power accounting with it is default Thresholding rule is matched, determines that needing to eliminate the quantity of the interfered cell of interference and cell ID includes according to matching result：There is n power threshold in default threshold value group, and the n power threshold is arranged by the sequence of numerical value Sequence, wherein n>=2；The interfering signal power accounting is ranked up by the terminal by the sequence of numerical value, and n interference letter before extraction Number power accounting；Since the preceding n interfering signal power accounting maximum interfering signal power accounting, successively by interference signal work( Rate accounting is compared with sequence number identical power threshold；When judging that interfering signal power accounting is more than sequence number identical power threshold, then stop comparing, and will carry out Interfered cell corresponding to the interfering signal power accounting that compares is defined as needs and eliminates the interfered cell of interference and obtain pair The cell ID answered.
- 5. the method as described in claim 1, it is characterised in that the serving BS receive terminal transmission location information or The interfered cell mark for needing to carry out disturbing elimination includes：Positional information is sent to the serving BS by the terminal by up signaling；Wherein, the localization method that the terminal uses includes：OTDOA、GNSS.
- 6. method as claimed in claim 5, it is characterised in that the serving BS determines the end according to the location information End disturb the interfered cell of elimination and interference eliminates auxiliary information and included：The serving BS determines that the terminal disturb the interfered cell of elimination according to the positional information, and disturbs small Interference base station corresponding to area；The serving BS disturb the interference elimination of elimination auxiliary by obtaining the terminal with the interface of the interference base station Supplementary information.
- A kind of 7. terminal, it is characterised in that including：Jamming power acquisition module, for obtaining the interference signal of interfered cell by measuring the reference signal power of interfered cell Power；Interfered cell determining module, for according to the interfering signal power determine need carry out disturb elimination interfered cell with And cell ID；Information uploading module, for the cell ID to be uploaded into serving BS；Execution module is disturbed, the interference for being issued based on serving BS is eliminated configured information and performs interference elimination；Wherein, it is described Interference eliminates the configured information carrying interfered cell information in need for carrying out disturbing elimination and interference eliminates auxiliary information.
- 8. terminal as claimed in claim 7, it is characterised in that：The interfered cell determining module, for calculating the ratio of each interfering signal power and whole interfering signal power summations, Obtain the interfering signal power accounting of each interfered cell；By the interfering signal power accounting and the rule progress of default thresholding Match somebody with somebody, determined to need to eliminate the quantity and cell ID of the interfered cell of interference according to matching result.
- 9. terminal as claimed in claim 8, it is characterised in that：The interfered cell determining module, including：Thresholding setting unit, for n power threshold in predetermined threshold value group, and the n power threshold is by numerical value Sequence is ranked up, wherein n>=2；Power ratio sequencing unit, for the interfering signal power accounting to be ranked up by the sequence of numerical value, and extract Preceding n interfering signal power accounting；Cell determining unit, for maximum interfering signal power accounting since the preceding n interfering signal power accounting, Successively by interfering signal power accounting compared with sequence number identical power threshold；When judging that interfering signal power accounting is big When sequence number identical power threshold, then stop comparing, and the interfering signal power accounting institute for having been carried out comparing is right The interfered cell answered is defined as needing to eliminate cell ID corresponding to the interfered cell disturbed and acquisition.
- 10. terminal as claimed in claim 7, it is characterised in that：Described information uploading module, for positional information to be sent into the serving BS by up signaling；Wherein, the localization method that the terminal uses includes：OTDOA、GNSS；The serving BS is true according to the location information The fixed terminal disturb the interfered cell of elimination and interference eliminates auxiliary information.
- A kind of 11. base station, it is characterised in that including：Data obtaining module, the location information or needs sent for receiving terminal disturb the interfered cell mark of elimination；Determining module is disturbed, for determining that the terminal disturb the interfered cell of elimination and dry according to the location information Elimination auxiliary information is disturbed, or, identified according to the interfered cell and obtain interference elimination auxiliary information；Information issuance unit, configured information is eliminated for issuing interference to the terminal, so that the terminal is based on the interference Eliminate configured information and perform interference elimination；Wherein, the interference eliminates the configured information carrying interfered cell information in need for carrying out disturbing elimination and interference eliminates Auxiliary information.
- 12. base station as claimed in claim 11, it is characterised in that：The interference determining module, it is additionally operable to determine that the terminal carries out disturbing the interference of elimination small according to the positional information Area, and interference base station corresponding to interfered cell；Disappeared by carrying out interference with the interface of the interference base station acquisition terminal The interference removed eliminates auxiliary information.
- A kind of 13. communication system, it is characterised in that including：Terminal as described in any one of claim 7 to 10, the base station as described in claim 11 or 12.
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| WO2022032634A1 (en) * | 2020-08-14 | 2022-02-17 | Nokia Shanghai Bell Co., Ltd. | Mechanism for transmission detection |
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