CN106161300B - Method and analyzer for dynamic implementation channeling - Google Patents
Method and analyzer for dynamic implementation channeling Download PDFInfo
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- CN106161300B CN106161300B CN201510134212.3A CN201510134212A CN106161300B CN 106161300 B CN106161300 B CN 106161300B CN 201510134212 A CN201510134212 A CN 201510134212A CN 106161300 B CN106161300 B CN 106161300B
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Abstract
The method that the present invention relates to a kind of to be used for dynamic implementation channeling in the baseband processing unit pond of wireless communication system, this method includes the relationship information that baseband processing unit pond analyzes user equipment (UE) Yu remote radio head (RRH) according to uplink channel assignment information；Baseband processing unit pond forms the service matrix and interference matrix of user equipment and remote radio head according to relationship information；And channeling is implemented according to service matrix and interference matrix in baseband processing unit pond.Furthermore, the invention further relates to a kind of in the baseband processing unit pond of wireless communication system for the analyzer of dynamic implementation channeling comprising analyzes the analytical unit of user equipment and the relationship information of remote radio head according to uplink channel assignment information, forms the service matrix of user equipment and remote radio head and the determination unit of interference matrix according to relationship information and according to the execution unit for servicing matrix and interference matrix implementation channeling.
Description
Technical field
The present invention relates to wireless communication techniques, and in particular, in the baseband processing unit Chi Zhongyong of wireless communication system
It is multiple for dynamic implementation frequency in method in dynamic implementation channeling and the baseband processing unit pond in wireless communication system
Analyzer.
Background technique
It is either indoor as being driven by the exponential type growth of the data traffic requirement among wireless cellular network
Or outdoor application scenarios are increasingly required the cell deployment requirements for designing ultra dense degree.Basically, due to
Density and the irregular distribution of large number of cell and bring more and more challenges, such as interference eliminate and user
Mobility switching problem etc..
It is well known that cluster-based techniques can reduce the interference in the cluster.And it is handled and is passed through by means of the multiple cell of base station cluster
It crosses simulation and is formed as the effective mode for making full use of cooperative gain while reducing signaling overheads, the user at the cluster edge
Still suffer from the serious interference from adjacent clusters.Furthermore it is determined that suppress which interfering link be also be difficult and
This will reduce its performance gain.
Cloud Radio Access Network (Cloud Radio Access Network:C-RAN) is incorporated as Future Mobile System
Revolutionary framework.Among cloud Radio Access Network C-RAN, base station (BS) will be by that widely distributed can cover simultaneously to enhance
And the remote radio head (RRH) of the lightweight of the access distance of mobile subscriber is reduced to substitute.Among backhaul network, radio frequency is drawn
Remote head RRH is connected to the pond baseband processing unit (BBU) via high speed low delay optical-fiber network.The pond baseband processing unit (BBU) energy
Enough it is interpreted powerful controller, is responsible for the signal processing concentrated and coordination.For indoor application scene, due to prison
The demand of pipe and covering aspect, output power is lower, and referred to herein as micro-power radio frequency zooms out head (mRRH).
The advantages of benefiting from C-RAN framework, micro-power radio frequency zoom out head (mRRH) and can be configured for according to user position
It sets and/or business demand forms the cluster of dynamic coordinate.In other words, the coordination between multiple remote radio heads (RRH) is not
It is limited within the cell centered on each base station being limited among traditional cellular network system again.In fact, base station is
The cell at center is associated with due to soft between mobile subscriber and remote radio head (RRH) and dynamically among C-RAN
And seems and recede into the background.Therefore, the definition of cell is examined to reach the most effective use of C-RAN framework and will to become more next
It is more important.
During some researchers suggest the virtual subdistrict solutions of user-centers as being relative to traditional base station
The solution of the cell of the heart.As identical meaning, the virtual subdistrict of user-center is by the mobile use positioned at center of housing estate
Family and the collaborative remote radio head RRH of some column among the cellular zone around the user are configured mobile subscriber's
On mobility.Remote radio head RRH can be according to the movement of user or changing for wireless environment among each virtual subdistrict
Become and with time change.
The problems caused by some thus natural, is to determine that micro-power radio frequency zooms out head with lower algorithm complexity
How the optimized size of the virtual subdistrict of the range of mRRH cooperation, i.e., carry out the selection that micro-power radio frequency zooms out a mRRH；
When secondly, using among environment indoors what has distinguish, because indoor application scene zooms out a mRRH in multiple micro-power radio frequencies
To having natural good isolation between some user equipment (UE)s.
Summary of the invention
Based on the relative distance between mRRH and user equipment is zoomed out in micro-power radio frequency, each user equipment can be asked
A series of micro-power radio frequency is asked to zoom out a mRRH to avoid interfering.It is main for each user equipment in this way
Interference source can be inhibited and the main bottleneck among such interference network is i.e. for Cell Edge User
Saying can be removed.Thus propose the channeling interference association centered on user equipment between the group interfered jointly
Adjust solution.
The first aspect of the present invention proposes a kind of real for dynamic in the baseband processing unit pond of wireless communication system
The method for applying channeling, which comprises
B) the baseband processing unit pond analyzes user equipment (UE) and radio frequency according to uplink channel assignment information
Zoom out the relationship information of head (RRH)；
C) the baseband processing unit pond forms the user equipment (UE) and the remote radio according to relationship information
The service matrix and interference matrix of head (RRH)；And
D) channeling is implemented according to the service matrix and the interference matrix in the baseband processing unit pond.
Method according to the present invention can obtain completely isolated group of user equipments, between such group of user equipments,
Each user equipment is able to use all frequency resources and not by the interference of other users equipment or remote radio head；
In addition, method according to the present invention can obtain partially isolated group of user equipments, between such group of user equipments, accordingly
User equipment corresponding remote radio head can be allowed to reduce the power on the subcarrier on the subcarrier of interference
To can also achieve the effect that channeling.In conclusion method according to the present invention can completely isolated and part every
From group of user equipments between form the solution of channeling, to substantially increase the utilization rate of frequency and same with this
Shi Bingwei generates any unfavorable interference.
Among a kind of embodiment according to the present invention, among the step (D), if according to the service matrix
The first user equipment is judged with the interference matrix and isolation threshold and second user equipment is completely isolated state, then
First user equipment and the second user equipment can be multiplexed all frequency resources completely.
Among a kind of embodiment according to the present invention, among the step (D), if according to the service square
Battle array, the interference matrix, isolation threshold and interference threshold judge the first user equipment and second user equipment for part every
From state, then first user equipment and the second user equipment can be drawn reducing corresponding radio frequency with the first coefficient
It is multiplexed all frequency resources completely in the case where power of the remote head on the first subcarrier.
Among a kind of embodiment according to the present invention, first coefficient is that the isolation threshold and described first are used
The difference of relative signal-to-noise ratio between family equipment and the second user equipment.
Among a kind of embodiment according to the present invention, between first user equipment and the second user equipment
Relative signal-to-noise ratio be first user equipment relative to the second user equipment relative signal-to-noise ratio and it is described second use
The average value of the sum of relative signal-to-noise ratio of the family equipment relative to first user equipment.
Among a kind of embodiment according to the present invention, the remote radio head RRH is that micro-power radio frequency zooms out head
mRRH。
Among a kind of embodiment according to the present invention, the baseband processing unit pond includes at least one Base-Band Processing
Unit.
Correspondingly, the second aspect of the present invention proposes a kind of is used in the baseband processing unit pond of wireless communication system
The analyzer of dynamic implementation channeling, the analyzer include:
Analytical unit, the analytical unit analyze user equipment (UE) and radio frequency according to uplink channel assignment information
Zoom out the relationship information of head (RRH)；
Determination unit, the determination unit form the user equipment (UE) and the remote radio according to relationship information
The service matrix and interference matrix of head (RRH)；And
Execution unit, the execution unit implement channeling according to the service matrix and the interference matrix.
Analyzer according to the present invention can obtain completely isolated group of user equipments, such group of user equipments it
Between, each user equipment is able to use all frequency resources and is not done by other users equipment or remote radio head
It disturbs；In addition, analyzer according to the present invention can obtain partially isolated group of user equipments, such group of user equipments it
Between, corresponding user equipment can allow corresponding remote radio head to reduce on the subcarrier on the subcarrier of interference
Power to can also achieve the effect that channeling.In conclusion analyzer according to the present invention can be completely isolated
Between partially isolated group of user equipments formed channeling solution, thus substantially increase the utilization rate of frequency and
And any unfavorable interference is not generated at the same time.
Among a kind of embodiment according to the present invention, among the execution unit, if according to the service square
Battle array and the interference matrix and isolation threshold judge the first user equipment and second user equipment is completely isolated state, that
First user equipment and the second user equipment can be multiplexed all frequency resources completely.
Among a kind of embodiment according to the present invention, among the execution unit, if according to the service square
Battle array, the interference matrix, isolation threshold and interference threshold judge the first user equipment and second user equipment for part every
From state, then first user equipment and the second user equipment can be drawn reducing corresponding radio frequency with the first coefficient
It is multiplexed all frequency resources completely in the case where power of the remote head on the first subcarrier.
Among a kind of embodiment according to the present invention, first coefficient is that the isolation threshold and described first are used
The difference of relative signal-to-noise ratio between family equipment and the second user equipment.
Among a kind of embodiment according to the present invention, between first user equipment and the second user equipment
Relative signal-to-noise ratio be first user equipment relative to the second user equipment relative signal-to-noise ratio and it is described second use
The average value of the sum of relative signal-to-noise ratio of the family equipment relative to first user equipment.
The core process for zooming out the solution that a mRRH is selected for micro-power radio frequency according to the present invention is following
Several aspects:
1) firstly the need of determining that the service micro-power radio frequency of user-center zooms out the micro- of a radius for mRRH group and interference
Power radio-frequency zooms out a radius for mRRH group.
According to the present invention method and analyzer among implement Signal to Interference plus Noise Ratio SINR according to each user equipment and move
The micro-power radio frequency for servicing and interfering is selected to state to zoom out a mRRH.
2) it is answered secondly, zooming out the selection of a mRRH according to above-mentioned micro-power radio frequency to implement the frequency of user-center
With.
Once being determined that the service micro-power radio frequency of user-center zooms out the half of a mRRH group for corresponding user equipment
Diameter and the micro-power radio frequency of interference zoom out a radius for mRRH group, then different groups will will form a biggish matrix.Such as
The different user equipment of fruit belongs to different micro-power radio frequencies and zooms out a mRRH group, then these user equipmenies will belong to completely every
From to (certainly completely isolated is an opposite concept, since the completely isolated signal strength for indicating interference herein is lower than pre-
Threshold value is determined, however, the threshold value also can be able to be adjusted according to algorithm optimization come the performance based on whole network), so
These channelings between can be very simply achieved.Will be primarily upon among the present invention interfere jointly it is micro-
Power radio-frequency zooms out the channeling among the range of a mRRH.
Among the range that the micro-power radio frequency interfered jointly zooms out a mRRH, it will determine corresponding user equipment or
Resource block used in remote radio head RRH, it is only necessary to which accordingly decreasing the power on corresponding resource block just can reach drop
The low purpose interfered each other after reducing the power on corresponding resource block, then can specifically done jointly
The micro-power radio frequency disturbed zooms out and realizes complete channeling among the range of a mRRH.
In conclusion method and analyzer according to the present invention can obtain completely isolated group of user equipments, in this way
Group of user equipments between, each user equipment be able to use all frequency resources and also not by other users equipment or
The interference of remote radio head；In addition, method and analyzer according to the present invention can obtain partially isolated group of user equipments,
Between such group of user equipments, corresponding user equipment can allow corresponding remote radio head on the subcarrier of interference
Reduce the power on the subcarrier to can also achieve the effect that channeling.In conclusion side according to the present invention
Method and analyzer can form the solution of channeling between completely isolated and partially isolated group of user equipments, thus
It substantially increases the utilization rate of frequency and does not generate any unfavorable interference at the same time.
Detailed description of the invention
The following detailed description to non-limiting embodiment, other spies of the invention are read by referring to accompanying drawing
Sign, objects and advantages will become more apparent upon.
Fig. 1 show according to the present invention it is described in the baseband processing unit pond of wireless communication system for dynamic implementation
The flow chart 100 of the method for channeling；
A radius for mRRH group is zoomed out Fig. 2 shows the service micro-power radio frequency of user-center and the micropower of interference is penetrated
Frequency zooms out a schematic diagram for the determination of the radius of mRRH group 200；
Fig. 3 shows the schematic diagram 300 of the channeling among the mRRH application scenarios interfered jointly；
Fig. 4 shows a kind of application scenarios 400 of method according to the present invention；And
Fig. 5 shows completely isolated group of user equipments UE4 and UE5 and partially isolated group of user equipments UE2 and UE4
Schematic diagram 500.
Run through different diagrams in the figure, same or similar appended drawing reference indicates the same or similar device (module)
Or step.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.
Fig. 1 show according to the present invention it is described in the baseband processing unit pond of wireless communication system for dynamic implementation
The flow chart 100 of the method for channeling, as shown in Figure 1, this method comprises:
Firstly, the baseband processing unit pond is analyzed according to uplink channel assignment information among method and step 110
The relationship information of user equipment (UE) and remote radio head RRH；
Then, among method and step 120, the baseband processing unit pond according to relationship information formed user equipment (UE) with
The service matrix and interference matrix of remote radio head RRH；And
Finally, frequency is implemented according to service matrix and interference matrix in the baseband processing unit pond among method and step 130
Multiplexing.
Method according to the present invention can obtain completely isolated group of user equipments, between such group of user equipments,
Each user equipment is able to use all frequency resources and not by the interference of other users equipment or remote radio head；
In addition, method according to the present invention can obtain partially isolated group of user equipments, between such group of user equipments, accordingly
User equipment corresponding remote radio head can be allowed to reduce the power on the subcarrier on the subcarrier of interference
To can also achieve the effect that channeling.In conclusion method according to the present invention can completely isolated and part every
From group of user equipments between form the solution of channeling, to substantially increase the utilization rate of frequency and same with this
Shi Bingwei generates any unfavorable interference.
The core process for zooming out the solution that a mRRH is selected for micro-power radio frequency according to the present invention is following
Several aspects:
1) firstly the need of determining that the service micro-power radio frequency of user-center zooms out the micro- of a radius for mRRH group and interference
Power radio-frequency zooms out a radius for mRRH group.
According to the present invention method and analyzer among implement Signal to Interference plus Noise Ratio SINR according to each user equipment and move
The micro-power radio frequency for servicing and interfering is selected to state to zoom out a mRRH.Fig. 2 shows the service micro-power radio frequencies of user-center
It zooms out a radius for mRRH group and the micro-power radio frequency of interference zooms out a schematic diagram for the determination of the radius of mRRH group 200.Such as Fig. 2
Shown, γ indicates the radius of service mRRH, and the micro-power radio frequency that annulus shown by d- γ is interference zooms out a mRRH group
Range.
2) it is answered secondly, zooming out the selection of a mRRH according to above-mentioned micro-power radio frequency to implement the frequency of user-center
With.
Once being determined that the service micro-power radio frequency of user-center zooms out the half of a mRRH group for corresponding user equipment
Diameter and the micro-power radio frequency of interference zoom out a radius for mRRH group, then different groups will will form a biggish matrix.Such as
The different user equipment of fruit belongs to different micro-power radio frequencies and zooms out a mRRH group, then these user equipmenies will belong to completely every
From to (certainly completely isolated is an opposite concept, since the completely isolated signal strength for indicating interference herein is lower than pre-
Threshold value is determined, however, the threshold value also can be able to be adjusted according to algorithm optimization come the performance based on whole network), so
These channelings between can be very simply achieved.Will be primarily upon among the present invention interfere jointly it is micro-
Power radio-frequency zooms out the channeling among the range of a mRRH.
Fig. 3 shows the schematic diagram 300 of the channeling among the mRRH application scenarios interfered jointly.As shown in figure 3,
The pond baseband processing unit BBU zooms out a mRRH with three micro-power radio frequencies with optical fiber and is connected, and user equipment (UE) -1, UE-2 and
UE-3 is within the coverage area of mRRH-2, the Dot system of situation shown in Fig. 3 and Ericsson or Huawei
Lampsite system is similar.For example, user equipment (UE) -1,2,3 belong to the service that micro-power radio frequency zooms out a mRRH-2 first
Among range (a simple example is illustrated only herein, it is clear that under conditions of intensive, service mRRH is not single
One but mRRH group, but this has no effect on the analysis of group rank).Among the range that UE-1 is moved to mRRH-3 and
When UE-2 is moved among the range of mRRH-1, they are unable to frequency of use multiplexing, this is because UE-1 can connect from mRRH-1
Interference signal is received and UE-2 can receive interference signal from mRRH-3, so they are pairs interfered jointly.According to tradition
Algorithm under this application scenarios can not frequency of use multiplexing.But if having adjusted the physics among different mRRH
On resource block (PRB) output power, such as can adjust mRRH-3's within the scope of the PRB of UE-2 as shown in Figure 3
Output power, same adjustment equally can carry out mRRH-1 in the range of the resource block PRB of UE-1, just be able to achieve frequency in this way
Rate multiplexing.The power regulation for implementing much degree can be determined based on the seriousness interfered jointly.Certainly, if at two
There are when serious interference between mRRH/mRRH group, such algorithm can not be implemented.
Fig. 4 shows a kind of application scenarios 400 of method according to the present invention.As shown in figure 4, the user of UE1 to UE5 sets
Standby service micro-power radio frequency is zoomed out a mRRH and is shown by means of dotted line frame, it can be seen from the figure that the micro- function of the service of UE1
Rate remote radio head mRRH is mRRH5, mRRH8；And the service micro-power radio frequency of UE2 zoom out a mRRH be mRRH4, mRRH5,
MRRH7 and mRRH8；It is mRRH8 and mRRH9 that the service micro-power radio frequency of UE3, which zooms out a mRRH,；The service micro-power radio frequency of UE42
Zooming out a mRRH is mRRH6 and mRRH9；And it is mRRH1 and mRRH2 that the service micro-power radio frequency of UE5, which zooms out a mRRH,.Thus
It is serviced shown in the following matrix of matrix out:
Equally from Fig. 4, it can be seen that the interference micro-power radio frequency of UE1 zoom out a mRRH be mRRH1, mRRH4, mRRH6,
MRRH7 and mRRH9；And it is mRRH1, mRRH2, mRRH6 and mRRH9 that the interference micro-power radio frequency of UE2, which zooms out a mRRH,；UE3's
It is mRRH5, mRRH6 and mRRH7 that interference micro-power radio frequency, which zooms out a mRRH,；The interference micro-power radio frequency of UE42 zooms out a mRRH
MRRH3, mRRH5 and mRRH8；And it is mRRH3, mRRH4 and mRRH5 that the interference micro-power radio frequency of UE5, which zooms out a mRRH,.Thus
To interference matrix as shown in following matrix:
Fig. 5 shows completely isolated group of user equipments UE4 and UE5 and partially isolated group of user equipments UE2 and UE4
Schematic diagram 500.It can be seen from the figure that UE4 and UE5 are completely isolated, i.e., among a kind of embodiment according to the present invention,
Among step 130, if judging that the first user equipment and second is used according to service matrix and interference matrix and isolation threshold
Family equipment is completely isolated state, then the first user equipment and second user equipment can be multiplexed all frequency money completely
Source.
It is also shown in FIG. 5, user equipment (UE) 2 and the isolation of 4 part of user equipment (UE), according to the method among the prior art
It can not implement channeling；And the method can realize channeling in a manner of reducing power according to the present invention, i.e.,
Among a kind of embodiment according to the present invention, among step 130, if according to service matrix, interference matrix, isolation threshold
And interference threshold judges that the first user equipment and second user equipment are part isolation, then the first user equipment and
Second user equipment can be the case where reducing power of the corresponding remote radio head on the first subcarrier with the first coefficient
It is multiplexed all frequency resources completely down.
Among a kind of embodiment according to the present invention, the first coefficient is that isolation threshold and the first user equipment and second are used
The difference of relative signal-to-noise ratio between the equipment of family.That is:
β=Isolation_threshold-rSNR2&4, wherein Isolation_threshold is isolation threshold, and
rSNR2&4For the relative signal-to-noise ratio between the first user equipment (UE) 2 and second user equipment UE4.
Opposite noise among a kind of embodiment according to the present invention, between the first user equipment and second user equipment
It is set with second user equipment relative to the first user than the relative signal-to-noise ratio for the first user equipment relative to second user equipment
The average value of the sum of standby relative signal-to-noise ratio.That is:
rSNR2,4=(rSNRUE2&UE4+rSNRUE4&UE2)/2, wherein rSNRUE2&UE4For the first user equipment (UE) 2 relative to
The relative signal-to-noise ratio of second user equipment UE4, and rSNRUE4&UE2It is second user equipment UE4 relative to the first user equipment (UE) 2
Relative signal-to-noise ratio.
And according to above service matrix and interference matrix, the first user equipment (UE) 2 is relative to second user equipment UE4's
Relative signal-to-noise ratio rSNRUE2&UE4It is calculated by the following formula and obtains, it may be assumed that
And according to above service matrix and interference matrix, second user equipment UE4 is relative to the first user equipment (UE) 2
Relative signal-to-noise ratio rSNRUE4&UE2It is calculated by the following formula and obtains, it may be assumed that
Among a kind of embodiment according to the present invention, remote radio head RRH is that micro-power radio frequency zooms out a mRRH.
Among a kind of embodiment according to the present invention, baseband processing unit pond includes at least one baseband processing unit.
Correspondingly, the second aspect of the present invention proposes a kind of is used in the baseband processing unit pond of wireless communication system
The analyzer of dynamic implementation channeling, the analyzer include:
Analytical unit, which analyzes user equipment (UE) according to uplink channel assignment information and radio frequency is drawn
The relationship information of remote head (RRH)；
Determination unit, the determination unit form the user equipment (UE) and the remote radio head according to relationship information
(RRH) service matrix and interference matrix；And
Execution unit, the execution unit implement channeling according to the service matrix and the interference matrix.
Analyzer according to the present invention can obtain completely isolated group of user equipments, such group of user equipments it
Between, each user equipment is able to use all frequency resources and is not done by other users equipment or remote radio head
It disturbs；In addition, analyzer according to the present invention can obtain partially isolated group of user equipments, such group of user equipments it
Between, corresponding user equipment can allow corresponding remote radio head to reduce on the subcarrier on the subcarrier of interference
Power to can also achieve the effect that channeling.To sum up should, analyzer according to the present invention can completely isolated and
Between partially isolated group of user equipments formed channeling solution, thus substantially increase the utilization rate of frequency and
Any unfavorable interference is not generated at the same time.
Among a kind of embodiment according to the present invention, among the execution unit, if according to the service matrix and be somebody's turn to do
Interference matrix and isolation threshold judge that the first user equipment and second user equipment are completely isolated state, then this first
User equipment and the second user equipment can be multiplexed all frequency resources completely.
Among a kind of embodiment according to the present invention, among the execution unit, if according to the service matrix, this is dry
It disturbs matrix, isolation threshold and interference threshold and judges that the first user equipment and second user equipment are part isolation, that
First user equipment and the second user equipment can reduce corresponding remote radio head in the first son with the first coefficient
All frequency resources are multiplexed in the case where power on carrier wave completely.
Among a kind of embodiment according to the present invention, first coefficient be the isolation threshold and first user equipment and
The difference of relative signal-to-noise ratio between the second user equipment.
It is opposite between first user equipment and the second user equipment among a kind of embodiment according to the present invention
Signal-to-noise ratio be first user equipment relative to the second user equipment relative signal-to-noise ratio and the second user equipment relative to
The average value of the sum of the relative signal-to-noise ratio of first user equipment.
Among the range that the micro-power radio frequency interfered jointly zooms out a mRRH, it will determine corresponding user equipment or
Resource block used in remote radio head RRH, it is only necessary to which accordingly decreasing the power on corresponding resource block just can reach drop
The low purpose interfered each other after reducing the power on corresponding resource block, then can specifically done jointly
The micro-power radio frequency disturbed zooms out and realizes complete channeling among the range of a mRRH.
In conclusion method and analyzer according to the present invention can obtain completely isolated group of user equipments, in this way
Group of user equipments between, each user equipment be able to use all frequency resources and also not by other users equipment or
The interference of remote radio head；In addition, method and analyzer according to the present invention can obtain partially isolated group of user equipments,
Between such group of user equipments, corresponding user equipment can allow corresponding remote radio head on the subcarrier of interference
Reduce the power on the subcarrier to can also achieve the effect that channeling.In conclusion side according to the present invention
Method and analyzer can form the solution of channeling between completely isolated and partially isolated group of user equipments, thus
It substantially increases the utilization rate of frequency and does not generate any unfavorable interference at the same time.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (12)
1. a kind of method for being used for dynamic implementation channeling in the baseband processing unit pond of wireless communication system, the method
Include:
B) the baseband processing unit pond analyzes user equipment (UE) and remote radio according to uplink channel assignment information
The relationship information of head (RRH)；
C) the baseband processing unit pond forms the user equipment (UE) and the remote radio according to the relationship information
The service matrix and interference matrix of head (RRH)；And
D) the baseband processing unit pond is according to the service matrix and the interference matrix completely isolated and partially isolated
Implement channeling between group of user equipments.
2. according to the method described in claim 1, wherein, in the step D) among, if according to the service matrix and institute
It states interference matrix and isolation threshold judges the first user equipment and second user equipment is completely isolated state, then described
First user equipment and the second user equipment can be multiplexed all frequency resources completely.
3. according to the method described in claim 1, wherein, in the step D) among, if according to the service matrix, described
Interference matrix, isolation threshold and interference threshold judge the first user equipment and second user equipment is part isolation,
So described first user equipment and the second user equipment can exist reducing corresponding remote radio head with the first coefficient
All frequency resources are multiplexed in the case where power on first subcarrier completely.
4. according to the method described in claim 3, wherein, first coefficient is that the isolation threshold is set with first user
The difference of relative signal-to-noise ratio between the standby and described second user equipment.
5. according to the method described in claim 4, wherein, the phase between first user equipment and the second user equipment
Signal-to-noise ratio is set relative to the relative signal-to-noise ratio of the second user equipment with the second user for first user equipment
The average value of the sum of the standby relative signal-to-noise ratio relative to first user equipment.
6. according to the method described in claim 1, wherein, the remote radio head (RRH) is that micro-power radio frequency zooms out head
(mRRH)。
7. according to the method described in claim 1, wherein, the baseband processing unit pond includes at least one Base-Band Processing list
Member.
8. a kind of analyzer that dynamic implementation channeling is used in the baseband processing unit pond of wireless communication system, described point
Parser includes:
Analytical unit, the analytical unit analyze user equipment (UE) and remote radio according to uplink channel assignment information
The relationship information of head (RRH)；
Determination unit, the determination unit form the user equipment (UE) and the remote radio head according to relationship information
(RRH) service matrix and interference matrix；And
Execution unit, the execution unit is according to the service matrix and the interference matrix completely isolated and partially isolated
Implement channeling between group of user equipments.
9. analyzer according to claim 8, wherein among the execution unit, if according to the service matrix
The first user equipment is judged with the interference matrix and isolation threshold and second user equipment is completely isolated state, then
First user equipment and the second user equipment can be multiplexed all frequency resources completely.
10. analyzer according to claim 8, wherein among the execution unit, if according to the service square
Battle array, the interference matrix, isolation threshold and interference threshold judge the first user equipment and second user equipment for part every
From state, then first user equipment and the second user equipment can be drawn reducing corresponding radio frequency with the first coefficient
It is multiplexed all frequency resources completely in the case where power of the remote head on the first subcarrier.
11. analyzer according to claim 10, wherein first coefficient is that the isolation threshold and described first are used
The difference of relative signal-to-noise ratio between family equipment and the second user equipment.
12. analyzer according to claim 11, wherein between first user equipment and the second user equipment
Relative signal-to-noise ratio be first user equipment relative to the second user equipment relative signal-to-noise ratio and it is described second use
The average value of the sum of relative signal-to-noise ratio of the family equipment relative to first user equipment.
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| WO2011100492A1 (en) * | 2010-02-12 | 2011-08-18 | Interdigital Technology Corporation | Data split between multiple sites |
| CN103220719A (en) * | 2012-01-20 | 2013-07-24 | 普天信息技术研究院有限公司 | Carrier resource planning method under carrier aggregation scene |
| CN104247359A (en) * | 2012-04-04 | 2014-12-24 | 三星电子株式会社 | Apparatus and method for supporting high-order multiple-user multiple-input multiple-output operation for wireless communication systems |
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