CN103167508B - A kind of disturbance coordination method, base station and communication system - Google Patents
A kind of disturbance coordination method, base station and communication system Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of disturbance coordination method, base station and communication system, relates to the communications field, it is possible to the interference that the user that other base stations service is caused by reduction base station or collection of base stations.Its method includes: obtain the first user channel condition information treating on the first running time-frequency resource of interference coordination；Obtain the second subscriber channel status information on described first running time-frequency resource；According to described first user channel condition information and described second subscriber channel status information, first user and the second user are matched, obtain transmitting power corresponding to described second user and pre-coding matrix；Described first running time-frequency resource launches data according to described transmitting power and pre-coding matrix to described second user, described first running time-frequency resource does not launches data to described first user.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of disturbance coordination method, base station and communication system.
Background technology
In the network topology structure of heterogeneous network, whole network is covered by multiple grand node devices, a grand node
Multiple micro-node is distributed under equipment, and the most identical running time-frequency resource can be re-used in the range of all of coverage, from
And provide cell splitting and gain that resource multiplex brings.But, interfering between node can be brought to user terminal
Stronger interference, especially because of the interference that power is relatively big and stronger to the generation of micro-node users of launching of grand node device, i.e. one
Grand node device can disturb the data channel of the user that multiple micro-node is corresponding simultaneously.
Summary of the invention
Embodiments of the invention provide a kind of disturbance coordination method, base station and communication system, it is possible to reduce base station or base station
What other base stations were serviced by set the interference that causes of user.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
Obtain the first user channel condition information treating on the first running time-frequency resource of interference coordination；
Obtain the second subscriber channel status information on described first running time-frequency resource；
According to described first user channel condition information and described second subscriber channel status information, to first user and
Two users match, and obtain transmitting power corresponding to described second user and pre-coding matrix；
Described first running time-frequency resource launches number according to described transmitting power and pre-coding matrix to described second user
According to, described first running time-frequency resource does not launches data to described first user.
On the one hand, it is provided that a kind of base station, including:
Receptor, for obtaining the first user channel condition information treating on the first running time-frequency resource of interference coordination, and obtains
Take the second subscriber channel status information on described first running time-frequency resource；
Processor, for according to described first user channel condition information and described second subscriber channel status information, right
First user and the second user match, and obtain transmitting power corresponding to described second user and pre-coding matrix；
Transmitter, on described first running time-frequency resource according to described transmitting power and pre-coding matrix to described second
User launches data, does not launches data to described first user on described first running time-frequency resource.
On the one hand, it is provided that a kind of communication system, including:
Base station, treats first user channel condition information on the first running time-frequency resource of interference coordination and described for obtaining
The second subscriber channel status information on first running time-frequency resource, and the transmitting merit that the second user of obtaining according to management equipment is corresponding
Rate and pre-coding matrix, launch data to described second user on described first running time-frequency resource, at described first running time-frequency resource
On not to described first user launch data；
Management equipment, is used for according to described first user channel condition information and described second subscriber channel status information,
First user and the second user are matched, obtains transmitting power corresponding to described second user and pre-coding matrix.
Disturbance coordination method, base station and the communication system that the embodiment of the present invention provides, by treating interference coordination in acquisition
First user channel condition information on first running time-frequency resource and the second subscriber channel status information on the first running time-frequency resource
After, according to first user channel condition information and the second subscriber channel status information, first user and the second user are joined
Right, thus obtain transmitting power corresponding to the second user and pre-coding matrix, and use according to second on this first running time-frequency resource
Transmitting power and pre-coding matrix that family is corresponding launch data to the second user, and not to described first on the first running time-frequency resource
User launches data.Therefore, it can reduce the interference that first user is caused.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The disturbance coordination method schematic flow sheet one that Fig. 1 provides for the embodiment of the present invention；
The disturbance coordination method application scenarios schematic diagram that Fig. 2 provides for the embodiment of the present invention；
The disturbance coordination method schematic flow sheet two that Fig. 3 provides for the embodiment of the present invention；
The architecture of base station schematic diagram one that Fig. 4 provides for the embodiment of the present invention；
The architecture of base station schematic diagram two that Fig. 5 provides for the embodiment of the present invention；
The architecture of base station schematic diagram three that Fig. 6 provides for the embodiment of the present invention；
The organigram of the communication system that Fig. 7 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The disturbance coordination method that the embodiment of the present invention provides, it is also possible to be called the disturbance coordination method of segment space multiplexing,
As it is shown in figure 1, include:
S101, base station or collection of base stations obtain the first user channel status letter treating on the first running time-frequency resource of interference coordination
Breath.
Here, first user can be user terminal or Virtual User or base station or node.
Exemplary, the first running time-frequency resource is the first time-frequency that base station or collection of base stations carry out interference coordination to first user
Resource, this first running time-frequency resource can be the first running time-frequency resource carrying out interference coordination that predefined first user is corresponding, also
Can be to obtain, after the negotiation of each base station, the first running time-frequency resource carrying out interference coordination that first user is corresponding, it is also possible to be root
According to its own processor of base station or collection of base stations be dynamically determined to obtain first user corresponding carry out interference coordination first time
Frequently resource.
Meanwhile, consult to obtain the first running time-frequency resource carrying out interference coordination that first user is corresponding with each base station, permissible
It is that the carrying out consulting to obtain between base station or collection of base stations and other base stations or collection of base stations by the way of notice or request does
Disturb the first running time-frequency resource of coordination.It is illustrated by the strong jamming of grand node with the user terminal of micro-node serve, this
Time, the user terminal of micro-node serve is first user.First, micro-node determines by the corresponding strongly disturbing user of grand node
After the ratio of terminal, send request to carry out interference coordination in the resource of corresponding ratio to grand node.Secondly, grand node according to
From the solicited message of multiple nodes, determine and carry out the resource of interference coordination and in which resource, which micro-node entered respectively
Row interference coordination.And then, grand node obtains the first running time-frequency resource carrying out interference coordination that first user is corresponding.
First running time-frequency resource of the present embodiment, can be predefined first running time-frequency resource, or pass through between base station
Negotiation determines.First running time-frequency resource of the present embodiment, can static or semi-static determine, it is also possible to be to be dynamically determined
's.
Wherein, the quantity of first user can be one or more.Different running time-frequency resources can corresponding different first
Number of users and different first users, base station or collection of base stations respectively on corresponding running time-frequency resource for corresponding first user
Carry out interference coordination.
Base station or collection of base stations obtain treats that the first user channel condition information on the first running time-frequency resource of interference coordination can
To be, base station or collection of base stations, after first user sends channel state request message, are measured by first user and are generated, the
Obtained by one user feedback is to base station or collection of base stations；Or, base station or collection of base stations by sending channel to other base stations
After status request message, first user measuring and generate, first user feeds back to other base stations, then is transmitted to by other base stations
Obtained by carrying out base station or the collection of base stations of interference coordination；Or measure the up of first user by base station or collection of base stations
Channel information, and by could be adjusted to obtain to uplink channel information.
This first user channel condition information is the channel condition information between base station and first user, or collection of base stations with
First user channel condition information between first user.This first user channel condition information can include the letter of respective channels
The channel matrix of road coefficient composition or the characteristic vector of respective channels；This first user channel condition information can also include channel
The channel quality information such as Signal to Interference plus Noise Ratio.This first user channel condition information is the first user letter that the first running time-frequency resource is corresponding
Channel state information；Or, first user channel condition information be Time-domain Statistics that the first running time-frequency resource is corresponding, frequency domain statistics or time
The first user channel condition information of frequency domain statistics.
S102, base station or collection of base stations obtain the second subscriber channel status information on the first running time-frequency resource.
S103, base station or collection of base stations are according to first user channel condition information and the second subscriber channel status information, right
First user and the second user match, and obtain transmitting power corresponding to the second user and pre-coding matrix.
Here, this second user can be user terminal or the user terminal of collection of base stations service of base station service, first
The quantity of user is one or more, and the quantity of the second user is one or more.Further, different running time-frequency resources can be corresponding
Identical or different first user quantity and first user, can use by corresponding the second identical or different number of users and second
Family.
Scheduling and pairing process are exemplified below, but are not limited to this:
Using corresponding one or more first users as the user of pre-scheduling.The transmission merit of pre-scheduling user can be set
Rate is arbitrary value, but is not take up base station or the collection of base stations transmitting power on corresponding Radio Resource.
On the basis of pre-scheduling, use MU-MIMO (Multiple-User Multiple Input Multiple
Output, multi-user's multiple-input, multiple-output) the further scheduling base station of mode or other users of collection of base stations service, be called the here
Two users.By ZF (Zero Forcing, ZF)/BD (Block Diagonalization, block diagonalization)/maximum SLNR
Methods such as (Signal to Leakage and Noise Ratio, signal reveals noise ratio) is come the second use attempting scheduling
Match between family and first user.As used PF (Proportional Fairness, equitable proportion) algorithm, then when
Attempt increasing when new user enters pairing when the PF priority after pairing and more than pairing before time, then it is assumed that can join
Right., from all the second users that can carry out and matching, now can select to have after pairing the second of maximum PF priority again
User joins in combinations of pairs as pairing result, then can also match at this and attempt further on the basis of result
Match new user, until pairing user can not be added further.During pairing, the power setting to the second user can be
By base station or collection of base stations, the transmitting power on corresponding Radio Resource is fully allocated or part distributes to all second users, as
It is averagely allocated to all second users.As long as here base station or collection of base stations distribute to the second user transmitting power base station or
Within the maximum transmission power that collection of base stations is available on corresponding running time-frequency resource, the power of concrete distribution does not limits at this
Fixed.
S104, base station or collection of base stations on the first running time-frequency resource according to described transmitting power and pre-coding matrix to described
Second user launches data, does not launches data to first user on the first running time-frequency resource.
The main body of the embodiment of the present invention can be base station or collection of base stations, it is also possible to is node or node set, or little
District or set of cells.When the main body of the present embodiment is base station, the scheduling of use can be single community or single base station MU-MIMO tune
Degree；When the main body of the embodiment of the present invention is collection of base stations, the scheduling of use can be multiple cell or many base stations JP-MU-MIMO
Scheduling.What the main body no matter carrying out interference coordination is, can use the method for the present invention that first user carries out interference association
Adjust, do not limit.
The disturbance coordination method that the embodiment of the present invention provides, base station or collection of base stations are by treating the of interference coordination obtaining
After first user channel condition information on one running time-frequency resource and the second subscriber channel status information on the first running time-frequency resource,
According to first user channel condition information and the second subscriber channel status information, first user and the second user are matched,
Thus obtain transmitting power corresponding to the second user and pre-coding matrix, and according to the second user couple on this first running time-frequency resource
Transmitting power and the pre-coding matrix answered launch data to the second user, and not to described first user on the first running time-frequency resource
Launch data.Therefore, it can reduce the interference that first user is caused.
The disturbance coordination method that further embodiment of this invention provides, as a example by scene shown in Fig. 2, it is assumed that the present embodiment system
Including user terminal the 202,205, second base station 203 that the 201, first base station 201, the first base station services, the second base station 203 takes
The user terminal 204 of business, with the second base station 203 for disturbed first user, and illustrates as a example by using zero forcing algorithm.
As it is shown on figure 3, the method comprises the following steps:
S301, pre-defined second base station 203 are as first user.
It should be noted that this step definition procedure can be by the association between the first base station 201 and the second base station 203
Business, informs that the second base station 203 is defined as first user and realizes by the first base station 201.
S302, the first base station 201 obtain the first running time-frequency resource of the second base station 203.
Exemplary, the first running time-frequency resource of the second base station 203 that the first base station 201 obtains is it may be that predefined right
Second base station 203 carries out the first running time-frequency resource of interference coordination, it is also possible to be to obtain after the first base station 201 is consulted with each base station
Second base station 203 is carried out the first running time-frequency resource of interference coordination, it is also possible to be that the first base station 201 is dynamic according to its own processor
Determine the first running time-frequency resource that the second base station 203 is carried out interference coordination.First base station 201 and each base station consult to obtain to the
One user carries out the first running time-frequency resource of interference coordination, can be logical between the first base station 201 and other base stations or collection of base stations
Know or ask to determine the first running time-frequency resource carrying out that the second base station 203 carries out interference coordination.
It should be noted that between base station transmission information include: negotiation in which resource, carry out which channel
The information of interference coordination, can be request or notice, measure corresponding channel information including request and carry out interference coordination
Resource, or notify to carry out the resource of interference coordination.
S303, the first base station 201 send channel state request message to the second base station 203.
First base station 201 sends channel state request information to the second base station 203, or to the second base station 203 service
User terminal 204 sends channel state request information, or does not send any channel state request information but the first base station 201
Directly measure the channel condition information of the second base station 203.Can also is that the channel condition information directly fed back the second base station 203 or
The channel condition information of the second base station 203 correspondence is directly forwarded for other base stations.
First user channel condition information is measured and generated in S304, the second base station 203.
This first user channel condition information is the channel condition information between the second base station 203 and the first base station 201, should
First user channel condition information can include channel matrix or the feature of respective channels of the channel coefficients composition of respective channels
Vector；This first user channel condition information can also include the channel quality informations such as the Signal to Interference plus Noise Ratio of channel.
S305, the second base station 203 send first user channel condition information to the first base station 201.
Here, the most exemplary explanation the first base station 201 be by send to the second base station 203 signal condition request disappear
The method of breath obtains the first user channel condition information on the first running time-frequency resource treating interference coordination, naturally it is also possible to logical
Crossing the first base station 201 and measure the uplink channel information of the second base station 203, the first base station 201 obtains according to this uplink channel information
The downlink channel condition information of the second base station 203.
The first user channel condition information sent is the first user channel status between the second base station and the first base station
Information.
Meanwhile, this first user channel condition information can be the first running time-frequency resource between the second base station and the first base station
Corresponding first user channel condition information, it is also possible to for the second base station and the first base added up at time domain, frequency domain or time-frequency domain
First user channel condition information between standing.
Certainly, no matter first user is any user, such as the user of Virtual User, node, base station or node serve, letter
Channel state information is all the first user channel condition information between first user and the first base station.Meanwhile, first user channel
Status information can be the first user channel condition information that the first running time-frequency resource between first user with the first base station is corresponding,
It can also be the first user channel status letter between first user and first base station of time domain, frequency domain or time-frequency domain statistics
Breath.
You need to add is that, the channel between base station or collection of base stations and first user, when the number of first user is one
Individual or multiple time can be one or more channel.Requiring will not when meeting the real user service for actual schedule when scheduling
These channels are produced interference or produces bigger interference.Here first user can also be node or base station, or node
The user of service or the user of base station service.And the channel of first user is the correspondence that base station or collection of base stations carry out interference coordination
Community or node to the channel of first user.Further, it is also possible to be predefined channel information, such as a stator space or transmission
Direction or pre-coding matrix respective channels, first user now is Virtual User.Further, first user channel status letter is obtained
The method of breath can have a variety of, can be by use in the present embodiment base station or collection of base stations by measuring corresponding the
One user obtains such as the reference signal etc. of some node or certain user, it is also possible to be corresponding first user such as some node or
Certain user measures and uses the base station of this method or the reference signal etc. of collection of base stations obtain channel information and are sent out by channel information
Give some in described base station or collection of base stations or several base station, it is also possible to be described in the user that corresponding node services measures
The reference signal etc. of base station or collection of base stations obtains channel information and feeds back to corresponding node and be transmitted to by corresponding node described
Some in base station or collection of base stations or several base station.
Illustrating as a example by the second base station is carried out interference coordination in the present embodiment, the embodiment of the present invention can also be to
Some or several user of two base stations services carry out interference coordination, now can define base station and the user terminal of base station service
Between transmission information include: in which resource, carry out the information of the interference coordination of which channel；Notice user terminal measurement
Which channel condition information, as measured channel information corresponding to which community and feeding back；Under semi-static pattern, it is also possible to logical
Know that user terminal is respectively to carrying out the resource of interference coordination and not carry out the Serving cell in the resource of interference coordination corresponding
Channel condition information also feeds back.
S306, the user terminal 202 second subscriber channel state of the first base station 201 service obtained on the first running time-frequency resource
Information.
S307, according to described first user channel condition information and described second subscriber channel status information, the first base station
201 pairs first base station 201 service user terminal 202 match, as processed by ZF and match before and after's priority ratio relatively,
Pairing is allowed, such that it is able to realize the second base station 203 and the first base station when priority before priority is higher than pairing after pairing
The pairing of user terminals 202 of 201 services, with obtain user terminal 202 correspondence of the first base station 201 service transmitting power and
Pre-coding matrix.
The ZF processing method that first base station 201 uses is specifically as follows:
If: the channel of user terminal 202 to the first base station 201 of the first base station 201 service is H1, and the first base station 201 takes
The channel of user terminal 205 to the first base station 201 of business is H2；
If: the channel of the 203 to the first base station, the second base station 201 is Hp；
Carry out ZF process: ZF [H1, Hp]=[V1, Vp]；
After ZF processes, the first base station 201 is when use V1 is user terminal 202, services, to the second base station
The interference of 203 will effectively reduce, i.e. HpV1 ≈ 0.
On the basis of user terminal 202 pairing that the second base station and the first base station 201 service, same mode is permissible
Continue that the user terminal 205 of the first base station 201 service is carried out pairing to attempt, the user serviced the first base station 201 such as permission
Terminal 205 joins pairing and the most also generates the corresponding transmitting power to the user terminal 205 that the first base station 201 services and precoding
Matrix.ZF [H1, H2, Hp]=[V1 ', V2, Vp], HpV1 ' ≈ 0 and HpV2 ≈ 0；
Calculate the user's of the first base station actual capabilities service according to the transmitting power before and after pairing and pre-coding matrix
The sum of priority, then allows pairing when the priority after pairing is higher than the priority before pairing.Pairing trial can be presetting
On the basis of degree, attempt all users allowing pairing and select a user being best suitable for pairing to add in scheduling result,
Then on the basis of existing scheduling result, the user that pairing is new is reattempted, until pairing user can not be added further.
Actually used scheduling and pairing algorithm are not limited to this.
S308, the first base station 201 are the first base station 201 according to launching power and pre-coding matrix on the first running time-frequency resource
The user terminal 202,205 of service launches data, does not launches data to the second base station 203 on the first running time-frequency resource.
Here, the first base station 201 is only the user terminal of the first base station 201 service with this transmitting power and pre-coding matrix
202,205 launch data, and are not that data are launched in the second base station 203.This transmitting power is that the first base station provides at this first time-frequency
On source, available maximum transmission power is part or all of, and the i.e. second base station 203 will not take the transmitting power of the first base station 201,
All of available horsepower can be allocated to the user terminal 202,205 of the first base station 201 service and is scheduling passing with data
Defeated process.During processor matches, the channel power information of the second base station 203 can be set as any value, as set
The channel of order rank=N that the power of the channel being set to order rank=N of the second base station 203 correspondence is corresponding with active service user
Power identical.Same, according to scheduling result, with the use that this transmitting power and pre-coding matrix are the first base station 201 service
Family terminal 202,205 launches data, is not the process that carries out any transmission data of the second base station 203.
It should be noted that the ZF illustrating the first base station 201 employing that above-mentioned steps S307 is exemplary processes
Method, the first same base station 201 can also use peak signal to reveal noise ratio SLNR processing method, by calculate maximum or
Bigger SLNR asks for the pre-coding matrix of the first base station 201 correspondence, and the first base station 201 can also be by the process side of block diagonalization
Method asks for the pre-coding matrix of the first base station 201 correspondence, thus reduces the pre-coding matrix of the first base station 201 in the second base station
The interference produced on 203 directions.Or, use fall power processing method, to reduce the first base station 201 to the second base station 203
Interference.Further, the scheduling that the first base station 201 is carried out allows to service for multiple users on same Resource Block simultaneously.By first
User, as the pre-scheduling result in corresponding resource, then while continuing to attempt to other users of scheduling base station service, makes
Ensure that described base station is in reality by the processing mode that ZF processes, block diagonalization processes, peak signal leakage is similar to than process etc.
First user will not be produced interference or produce relatively low interference when border services user.
Above-described embodiment be only exemplary be that the situation of the second base station 203 is described, if with to first user
The interference to all of user under this second base station 203, as first user, can be reduced after treatment in two base stations 203.
Same, first user can also be virtual use corresponding to some or multiple user terminal or base station or node or subspace
Family, definition specifically can set according to specific environment, and its processing method is identical with the present embodiment.
Herein, definition first user is the second base station 203 or the user terminal 204 of the second base station service, is primarily to see
The object of the first base station 201 interference.If the first base station 201 interference one or several liked in the second base station 203 is used
Family, then the user terminal that this one or several the second base station 203 can be serviced is as first user, if the first base station 201
Interference to as if the second base station 203 in all users, then can be the second base station 203 as first user, and when first
When user services for user terminal 204, it is also possible to be to other base stations by the first base station 201, as the second base station 203 sends the
One channel state request message, the first base station 201 receives the first channel that the first user of other base stations forwarding is measured and generated
Status information.
The main body of the embodiment of the present invention can be base station or collection of base stations, it is also possible to is node or node set, or little
District or set of cells.When the main body of the embodiment of the present invention is base station, the scheduling of use can be single community or single base station MU-
MIMO dispatches；When the main body of the embodiment of the present invention is collection of base stations, the scheduling of use can be multiple cell or many base stations JP-
MU-MIMO dispatches.What the main body no matter carrying out interference coordination is, the method for the present invention can be used to carry out first user
Interference coordination, does not limits.
The embodiment of the present invention provides a kind of disturbance coordination method, and the first base station is to predefined first user the
Two base stations, after sending channel state request message, obtain first on the first running time-frequency resource of the second base station, the first running time-frequency resource
Second subscriber channel status information running time-frequency resource of the user terminal of subscriber channel status information and the service of the first base station, according to
First user channel condition information and the second subscriber channel status information, be scheduling joining to the user terminal of the first base station service
Right, i.e. the channel of the user terminal that the second base station and the first base station service is carried out ZF process, so, just can obtain the first base
The transmitting power corresponding to user terminal of the service of standing and pre-coding matrix, launch power and pre-coding matrix at the first time-frequency with this
Be that the user terminal of the first base station service launches data in resource, and not to the second Base Transmitter data, it is thus possible to reduce right
The interference caused as the second base station of first user.
A kind of base station 40 of embodiment of the present invention offer, as shown in Figure 4, including:
Receptor 41, for obtaining the first user channel condition information treating on the first running time-frequency resource of interference coordination, and
Obtain the second subscriber channel status information on the first running time-frequency resource.
Processor 42, for according to first user channel condition information and the second subscriber channel status information, using first
Family and the second user match, and obtain transmitting power corresponding to the second user and pre-coding matrix.
Transmitter 43, for launching number according to transmitting power and pre-coding matrix to the second user on the first running time-frequency resource
According to, the first running time-frequency resource does not launches data to first user.
The base station that the embodiment of the present invention provides, it is possible to treated the first use on the first running time-frequency resource of interference coordination by acquisition
The second subscriber channel status information on family channel condition information and the first running time-frequency resource, believes according to first user channel status
Breath and the second subscriber channel status information, match to first user and the second user, obtain the transmitting that the second user is corresponding
Power and pre-coding matrix, launch data according to transmitting power and pre-coding matrix to the second user on the first running time-frequency resource,
First running time-frequency resource does not launches data to first user, it is thus possible to reduce the interference that first user is caused.
Further, as it is shown in figure 5, receptor 41 also includes:
First sending module 411, for sending channel state request message to first user；
First receiver module 412, what the first user fed back for receiving first user was measured and generated treats interference coordination
The first running time-frequency resource on first user channel condition information；
And/or,
Second sending module 413, for sending channel state request message to other base stations；
Second receiver module 414, what the first user forwarded for receiving other base stations was measured and generated treats interference coordination
The first running time-frequency resource on first user channel condition information；
And/or,
Measuring unit 415, for measuring the uplink channel information of first user, obtains the first use according to uplink channel information
The downlink channel condition information at family.
Further, as shown in Figure 6, processor 42 also includes:
Channel processing module 421, for carrying out at ZF process, block diagonalization the channel of first user and the second user
Reason or peak signal are revealed noise ratio and are processed, and obtain transmitting power corresponding to the second user and pre-coding matrix.
The main body of the present embodiment can be base station or collection of base stations, it is also possible to is node or node set, or community or
Set of cells.When the main body of the present embodiment is base station, the scheduling of use can be single community or single base station MU-MIMO scheduling；
When the main body of the present embodiment is collection of base stations, the scheduling of use can be multiple cell or many base stations JP-MU-MIMO scheduling.Nothing
Opinion carries out what the main body of interference coordination is, the method for the present invention can be used first user to be carried out interference coordination, here
Do not limit.
A kind of communication system that the embodiment of the present invention provides, as it is shown in fig. 7, comprises:
Base station 701, for obtain treat first user channel condition information on the first running time-frequency resource of interference coordination and
The second subscriber channel status information on first running time-frequency resource, and corresponding the sending out of the second user obtained according to management equipment 702
Penetrate power and pre-coding matrix, the first running time-frequency resource launches data to the second user, not on the first running time-frequency resource
One user launches data；
Management equipment 702, for according to first user channel condition information and the second subscriber channel status information, to first
User and the second user match, and obtain transmitting power corresponding to the second user and pre-coding matrix.
The communication system that the embodiment of the present invention provides, base station is obtaining first treated on the first running time-frequency resource of interference coordination
After the second subscriber channel status information in subscriber channel status information and the first running time-frequency resource, management equipment is according to first user
Channel condition information and the second subscriber channel status information, match to first user and the second user, obtain the second user
Corresponding transmitting power and pre-coding matrix, and base station on the first running time-frequency resource according to this transmitting power and pre-coding matrix
Launch data to the second user, the first running time-frequency resource does not launches data to first user.Therefore, it can reduce and use first
The interference that family is caused.
Further, first user includes user terminal or the second base station or Virtual User；Second user services for base station
User terminal or collection of base stations service user terminal；The quantity of first user is one or more, the quantity of the second user
For one or more.
Further, base station 701 is additionally operable to obtain predefined first running time-frequency resource；Or, after consulting with each base station
Obtain the first running time-frequency resource；Or, it is dynamically determined to obtain the first running time-frequency resource according to its own processor.
Further, base station 701 is additionally operable to send channel state request message to first user, receives first user feedback
First user the first running time-frequency resource treating interference coordination measuring and generate on first user channel condition information；Or,
To other base stations send channel state request message, receive other base stations forward first user measures and generates treat interference assist
The first user channel condition information on the first running time-frequency resource adjusted；Or, measure the uplink channel information of first user, according to
Uplink channel information obtains the downlink channel condition information of first user.
Further, management equipment 702 is for believing according to first user channel condition information and the second subscriber channel state
Breath, carries out ZF process, block diagonalization process or peak signal leakage noise ratio to the channel of first user and the second user
Process, obtain transmitting power corresponding to the second user and pre-coding matrix.
The main body of the present embodiment can be base station or collection of base stations, it is also possible to is node or node set, or community or
Set of cells.When the main body of the present embodiment is base station, the scheduling of use can be single community or single base station MU-MIMO scheduling；
When the main body of the present embodiment is collection of base stations, the scheduling of use can be multiple cell or many base stations JP-MU-MIMO scheduling.Nothing
Opinion carries out what the main body of interference coordination is, the method for the present invention can be used first user to be carried out interference coordination, here
Do not limit.
In several embodiments provided herein, it should be recognized that in several embodiments provided herein,
It should be appreciated that disclosed device, method and system, can realize by another way.Such as, dress described above
Putting embodiment is only schematically, such as, the division of described unit, it is only a kind of logic function and divides, actual when realizing
Can have other dividing mode, the most multiple unit or module can in conjunction with or be desirably integrated into another system, or one
A little features can be ignored, or does not performs.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be passed through
The hardware that programmed instruction is relevant completes, and aforesaid program can be stored in a computer read/write memory medium, this program
Upon execution, perform to include the step of said method embodiment；And aforesaid storage medium includes: ROM, RAM, magnetic disc or light
The various medium that can store program code such as dish.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (14)
1. a disturbance coordination method, it is characterised in that including:
Obtain the first user channel condition information treating on the first running time-frequency resource of interference coordination；
Obtain the second subscriber channel status information on described first running time-frequency resource；
According to described first user channel condition information and described second subscriber channel status information, first user and second are used
Family is matched, and obtains transmitting power corresponding to described second user and pre-coding matrix；
Described first running time-frequency resource launches data according to described transmitting power and pre-coding matrix to described second user,
Data are not launched to described first user on described first running time-frequency resource；User terminal that described second user services for base station or
The user terminal of collection of base stations service；Described transmitting power is described base station available emission maximum on described first running time-frequency resource
Power part or all of；
Wherein, described acquisition treats that the first user channel condition information on the first running time-frequency resource of interference coordination includes: to other
Base station sends channel state request message, and what the described first user that reception other base stations described forward was measured and generated waits to disturb
The first user channel condition information on the first running time-frequency resource coordinated.
Method the most according to claim 1, it is characterised in that
Described first user is user terminal or base station or node or Virtual User；
The quantity of described first user is one or more, and the quantity of described second user is one or more.
Method the most according to claim 1, it is characterised in that the acquisition mode of described first running time-frequency resource includes:
Obtain predefined first running time-frequency resource；Or, after consulting with each base station, obtain the first running time-frequency resource；Or, according to
Its own processor is dynamically determined to obtain the first running time-frequency resource.
Method the most according to claim 3, it is characterised in that described first user channel condition information includes channel coefficients
The channel matrix of composition or the characteristic vector of channel.
Method the most according to claim 4, it is characterised in that described first user channel condition information also includes channel
Signal to Interference plus Noise Ratio.
Method the most according to claim 5, it is characterised in that when described first user channel condition information is described first
Frequently the first user channel condition information that resource is corresponding；
Or, described first user channel condition information is at Time-domain Statistics, frequency domain statistics or the first user of time-frequency domain statistics
Channel condition information.
Method the most according to claim 1, it is characterised in that first user and the second user are matched, obtains institute
State transmitting power corresponding to the second user and pre-coding matrix include:
The channel of described first user and the second user carries out ZF process, block diagonalization processes or peak signal is revealed and made an uproar
Acoustic ratio processes, and obtains transmitting power corresponding to described second user and pre-coding matrix.
8. a base station, it is characterised in that including:
Receptor, for obtaining the first user channel condition information treating on the first running time-frequency resource of interference coordination, and obtains institute
State the second subscriber channel status information on the first running time-frequency resource；
Processor, for according to described first user channel condition information and described second subscriber channel status information, to first
User and the second user match, and obtain transmitting power corresponding to described second user and pre-coding matrix；
Transmitter, on described first running time-frequency resource according to described transmitting power and pre-coding matrix to described second user
Launch data, described first running time-frequency resource does not launches data to described first user；Described second user services for base station
User terminal or collection of base stations service user terminal；Described transmitting power is that described base station is on described first running time-frequency resource
Can use the part or all of of maximum transmission power；
Wherein, described receptor includes:
Second sending module, for sending channel state request message to other base stations；
Second receiver module, what the described first user forwarded for receiving other base stations described was measured and generated treats interference coordination
The first running time-frequency resource on first user channel condition information.
Base station the most according to claim 8, it is characterised in that when described processor is additionally operable to be dynamically determined to obtain first
Frequently resource.
Base station the most according to claim 8, it is characterised in that described processor includes:
Channel processing module, for the channel of described first user and the second user is carried out ZF process, block diagonalization processes
Or peak signal is revealed noise ratio and is processed, and obtains transmitting power corresponding to described second user and pre-coding matrix.
11. 1 kinds of communication systems, it is characterised in that including:
Base station, treats the first user channel condition information on the first running time-frequency resource of interference coordination and described first for obtaining
The second subscriber channel status information on running time-frequency resource, and transmitting power corresponding to the second user of obtaining according to management equipment and
Pre-coding matrix, launches data to described second user on described first running time-frequency resource, on described first running time-frequency resource not
Data are launched to described first user；Described transmitting power is described base station available emission maximum on described first running time-frequency resource
Power part or all of；
Management equipment, for according to described first user channel condition information and described second subscriber channel status information, to the
One user and the second user match, and obtain transmitting power corresponding to described second user and pre-coding matrix；Described second
User terminal that user services for base station or the user terminal of collection of base stations service；
Described base station when obtaining first user channel condition information on the first running time-frequency resource of interference coordination specifically for:
Send channel state request message to other base stations, the described first user that reception other base stations described forward is measured and is generated
Treat the first user channel condition information on the first running time-frequency resource of interference coordination.
12. communication systems according to claim 11, it is characterised in that
Described first user includes user terminal or the second base station or Virtual User；
The quantity of described first user is one or more, and the quantity of described second user is one or more.
13. communication systems according to claim 11, it is characterised in that described base station is additionally operable to obtain predefined first
Running time-frequency resource；Or, after consulting with each base station, obtain the first running time-frequency resource；Or, according to its own processor be dynamically determined with
Obtain the first running time-frequency resource.
14. communication systems according to claim 11, it is characterised in that described management equipment is for using according to described first
Family channel condition information and described second subscriber channel status information, compel the channel of described first user and the second user
Zero process, block diagonalization process or peak signal is revealed noise ratio and processed, and obtain the transmitting power that described second user is corresponding
And pre-coding matrix.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420807.7A CN103167508B (en) | 2011-12-15 | A kind of disturbance coordination method, base station and communication system | |
| EP12857912.5A EP2677813B1 (en) | 2011-12-15 | 2012-12-17 | Interference coordination method, base station and communication system |
| PCT/CN2012/086724 WO2013087034A1 (en) | 2011-12-15 | 2012-12-17 | Interference coordination method, base station and communication system |
| US14/069,792 US9531513B2 (en) | 2011-12-15 | 2013-11-01 | Interference coordination method, base station, and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110420807.7A CN103167508B (en) | 2011-12-15 | A kind of disturbance coordination method, base station and communication system |
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| CN103167508A CN103167508A (en) | 2013-06-19 |
| CN103167508B true CN103167508B (en) | 2016-12-14 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373998A (en) * | 2007-08-20 | 2009-02-25 | 上海贝尔阿尔卡特股份有限公司 | Low information interactive multi-base station collaboration MIMO as well as scheduling method and apparatus thereof |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373998A (en) * | 2007-08-20 | 2009-02-25 | 上海贝尔阿尔卡特股份有限公司 | Low information interactive multi-base station collaboration MIMO as well as scheduling method and apparatus thereof |
Non-Patent Citations (1)
| Title |
|---|
| Uplink Multi-user MIMO Interference Cancellation Algorithm for LTE-A Systems;Xiangyou Lv等;《201O International Conference on Information, Networking and Automation (ICINA)》;20101231;第1-4页 * |
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