CN109787666A - A kind of frequency domain dispatching method, device and equipment - Google Patents
A kind of frequency domain dispatching method, device and equipment Download PDFInfo
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Abstract
The invention discloses a kind of frequency domain dispatching method, device and equipment, belong to wireless communication technology field, this method comprises: obtaining the simulation precoding weight of each user using mixing precoding to the user in millimeter wave multiaerial system；All users are divided into frequency division multiplexing user group and user group to be selected according to the simulation precoding weight；Using the frequency division multiplexing user group as a Virtual User, space division multiplexing scheduling is carried out together with the user group to be selected, pass through the selection of different multiplex modes, the handling capacity of millimeter-wave communication system can be obviously improved, the interference between spatial reuse user is reduced, the performance gain of frequency division multiplexing user is improved.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of frequency domain dispatching methods, device and equipment.
Background technique
Wavelength is that 1~10 millimeter of electromagnetic wave is known as millimeter wave, and millimeter wave will discharge the new frequency spectrum of 30-300GHz, become
5G realizes the necessary condition of GBPS (Gigabits per second) transmission rate, extensive MIMO (Multiple-Input Multiple-
Output, multi-antenna technology) path loss of millimetre-wave attenuator can be overcome, and also millimetre wavelength is short, is extensive MIMO's
Realization is provided convenience condition, therefore the extensive MIMO of millimeter wave is the important implementation of 5G wireless communication system.
Pure digi-tal precoding is used in existing mimo system, MIMO processing is completed in base band.It is extensive in millimeter wave
In mimo system, in order to reduce the cost and power consumption of RF power amplification, frequently with analog to digital mixing precoding, i.e. number prelists
Code is realized in base band, and is simulated precoding and realized after IFFT (inversefouriertransform) in analog domain.
Millimeter-wave systems will provide the big bandwidth of 1GHz or more, and under the scene of microcellulor base station and terminal room letter
Road is there are multipath, therefore millimeter wave channel is by frequency of occurrences Selective intensity, and frequency domain dispatching will dispatch over the whole width it is more
Different users is dispatched on the best physical resource of channel quality, can significantly improve power system capacity by a user.
But in the extensive mimo system of millimeter wave, simulating the processing of precoding is identical over the whole width, and
Scheduling on different channel multiple users simulation precoding phase it is not necessarily identical, it is therefore desirable to consider mixing precoding and
The combined optimization of frequency domain dispatching designs.
Summary of the invention
In view of this, passing through different multiplexings the purpose of the present invention is to provide a kind of frequency domain dispatching method, device and equipment
The selection of mode can be obviously improved the handling capacity of millimeter-wave communication system, reduce the interference between spatial reuse user, improve frequency division
The performance gain of users multiplexing.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
According to an aspect of the present invention, a kind of frequency domain dispatching method provided, comprising:
To the user in millimeter wave multiaerial system using mixing precoding, the simulation for obtaining each user prelists code weight
Value；
All users are divided into frequency division multiplexing user group and user group to be selected according to the simulation precoding weight；
Space division multiplexing is carried out together using the frequency division multiplexing user group as a Virtual User and the user group to be selected
Scheduling.
According to another aspect of the present invention, a kind of frequency domain dispatching device provided, comprising:
Precoding module is mixed, for, using mixing precoding, obtaining each to the user in millimeter wave multiaerial system
The simulation precoding weight of user；
Frequency division multiplexing module, for all users to be divided into frequency division multiplexing user according to the simulation precoding weight
Group and user group to be selected；
Space division multiplexing module, for using the frequency division multiplexing user group as a Virtual User and the user to be selected
Group carries out space division multiplexing scheduling together.
According to a further aspect of the invention, a kind of frequency domain dispatching equipment provided, including memory, processor and at least
One is stored in the memory and is configured as the application program executed by the processor, and the application program is matched
It is set to for executing above-described frequency domain dispatching method.
A kind of frequency domain dispatching method, device and the equipment of the embodiment of the present invention, this method comprises: to millimeter wave multiple antennas system
User in system obtains the simulation precoding weight of each user using mixing precoding；According to the simulation precoding weight
All users are divided into frequency division multiplexing user group and user group to be selected；It is virtual using the frequency division multiplexing user group as one
User and the user group to be selected carry out space division multiplexing scheduling together, by the selection of different multiplex modes, can be obviously improved milli
The handling capacity of metric wave communication system reduces the interference between spatial reuse user, improves the performance gain of frequency division multiplexing user.
Detailed description of the invention
Fig. 1 is a kind of frequency domain dispatching method flow chart that the embodiment of the present invention one provides；
Fig. 2 is the operation principle schematic diagram for the millimeter wave large-scale multi-antenna system that the embodiment of the present invention one provides；
Fig. 3 is the method flow diagram of step S20 in Fig. 1；
Fig. 4 is the schematic diagram for multi-user's frequency division multiplexing that the embodiment of the present invention one provides；
Fig. 5 is the method flow diagram of step S30 in Fig. 1；
Fig. 6 is a kind of frequency domain dispatching method flow chart provided by Embodiment 2 of the present invention；
Fig. 7 is a kind of frequency domain dispatching device exemplary block diagram that the embodiment of the present invention three provides；
Fig. 8 is the exemplary block diagram of frequency division Multiplexing module in Fig. 7；
Fig. 9 is the exemplary block diagram of space division Multiplexing module in Fig. 7；
Figure 10 is a kind of frequency domain dispatching device exemplary block diagram that the embodiment of the present invention four provides.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Embodiment one
As shown in Figure 1, a kind of frequency domain dispatching method, comprising:
S10, mixing precoding is used to the user in millimeter wave multiaerial system, obtain the simulation precoding of each user
Weight；
S20, all users are divided by frequency division multiplexing user group and user to be selected according to the simulation precoding weight
Group；
S30, space division is carried out together using the frequency division multiplexing user group as a Virtual User and the user group to be selected
Multiplexing scheduling.
In the present embodiment, by the selection of different multiplex modes, it can be obviously improved the handling capacity of millimeter-wave communication system,
The interference between spatial reuse user is reduced, the performance gain of frequency division multiplexing user is improved.
In the present embodiment, this method is suitable for millimeter wave multiaerial system and similar multi-antenna multi-user communication system
In, each step in this method is completed by millimeter wave multiaerial system.
In the present embodiment, in millimeter wave large-scale multi-antenna system, communication link has frequency selective fading,
That is, since millimeter wave is to the sensibility of frequency, so that certain band frequencies in whole bandwidth decline unstable, thus can
Lead to common frequency division multiplexing or code division multiplexing all and can not achieve the maximization of system velocity, and then the best appearance of system is not achieved
It measures, in this case in such a way that frequency division multiplexing combines, so that it may improve the handling capacity of communication system.
In the present embodiment, when the simple precoding processing using simulation, weight over the whole width be it is identical, it is unfavorable
The scheduling of frequency division multiplexing is carried out according to the weight of simulation precoding in us, therefore, in the present embodiment, using mixing precoding
Processing mode, namely in such a way that digital precode and simulation precoding combine, so that the simulation precoding of each user
Weight is no longer identical.
As shown in Fig. 2, be millimeter wave large-scale multi-antenna system operation principle schematic diagram, the system include transmitter,
Baseband channel and receiver, baseband channel are connect with transmitter and receiver by several radio frequency links, are set in baseband channel
It is equipped with multiple antennas mimo channel, is provided with precoder in transmitter.
In the present embodiment, the simulation precoding weight can be expressed by channel relevancy, due to millimeter wave channel
Sparse characteristic, the energy of each user is only focusing only on certain points in space, and the energy on other regions is seldom.
When the channel of multi-user is uncorrelated, they respectively correspond different wave beams, mitigate the interference between user whereby.Therefore, channel
Correlation can be used as judge user between with the presence or absence of interference evaluation criteria.
As shown in figure 3, in the present embodiment, the step S20 includes:
S21, the channel relevancy for obtaining every two user；
S22, judge whether the channel relevancy is greater than preset correlation thresholding；
If so, entering step S23, described two users being assigned to the same frequency division multiplexing user group；
Otherwise, it enters step S24, user group to be selected will be assigned to the incoherent user of frequency division multiplexing user group.
In the present embodiment, the user sharing whole bandwidth in the frequency division multiplexing user group, is dispatched respectively in link matter
It measures and sends respective signal in best frequency domain resource.
As shown in figure 4, be a schematic diagram of multi-user's frequency division multiplexing, in a scheduling time window, multiple spatial division multiplexings
Over the entire frequency band with user's group scheduling, wherein each member of user group has same space characteristic and distributes in different frequencies
It in rate subband, is interfered with each other to eliminate, includes K user on the frequency band, by believing between every two user as shown in Figure 4
The calculating of road correlation learns that the correlation between user 1, user 3 and user 5 is greater than preset correlation threshold value, this three
A user forms a frequency division multiplexing user group, also referred to as Virtual User group 1, and the correlation between user 2 and user 4 is also big
In preset correlation threshold value, then the two users form another frequency division multiplexing user group, also referred to as Virtual User group 2 its
All do not have correlation between his user and between other users and above-mentioned two frequency division multiplexing user group, is then all assigned to
User group to be selected.
In the embodiment shown in fig. 4, the user 1 in Virtual User group 1, user 3 and user 5 constitute frequency division multiplexing user
Group shares whole bandwidth, dispatches send respective signal in the best frequency domain resource of link-quality respectively；Virtual User group 2
Interior user 2, user 4 constitute frequency division multiplexing user group, share whole bandwidth, dispatch the frequency domain money best in link-quality respectively
Respective signal is sent on source.
As shown in figure 5, in the present embodiment, the step S30 includes:
S31, using the frequency division multiplexing user group as a Virtual User, calculate the synthesis of the frequency division multiplexing user group
Channel gain；
S32, the channel gain for calculating all users to be selected；
S33, selection channel gain is best from the channel gain of the comprehensive channel gain and all users to be selected
First user of the user as space division multiplexing；
S34, the user that space division multiplexing is chosen according to the maximum principle of summation rate, the number of users of the space division multiplexing are equal to
The rf chain number of millimeter wave multiaerial system.
In the present embodiment, the purpose of space division multiplexing user selection is to realize the maximization of summation rate, in order to improve
The handling capacity of system is given the optimal user of channel gain and is preferentially selected to reduce the complexity of spatial reuse user selection
Power selects the maximum user of Signal to Noise Ratio (SNR) as first user, the selection of remaining space division multiplexing user can also be according to summation
Rate calculations formula is calculated, and the number of users of the space division multiplexing is equal to rf chain number K, that is, in addition to first user,
K-1 calculating is also carried out, selects corresponding space division multiplexing user, and be scheduled according to selection result.
In the present embodiment, after the step S30 further include:
Over the whole width according to the different different modulation coding schemes for waiting ranks of channel quality instruction selection.For example,
When channel quality is higher, using high order modulation coded format, when channel quality is lower, using low-order-modulated coded format, this
Sample also contributes to further increasing the handling capacity of system.
In the present embodiment, it can be automatically selected not by millimeter wave multiaerial system according to different channel quality instructions
The modulation coding scheme of same rank；Different Deng ranks can also be manually selected by the manager or operator of millimeter wave multiaerial system
Modulation coding scheme.
Embodiment two
As shown in fig. 6, in the present embodiment, the simulation precoding weight can be expressed by beam direction, and accordingly, institute
Stating step S20 includes:
S201, the beam direction for obtaining each user；
S202, the identical user of beam direction is assigned to frequency division multiplexing user group；
S203, the beam direction user different from the beam direction of the frequency division multiplexing user group is assigned to user to be selected
Group.
In the present embodiment, the user sharing whole bandwidth in the frequency division multiplexing user group, is dispatched respectively in link matter
It measures and sends respective signal in best frequency domain resource.
As shown in figure 5, in the present embodiment, the step S30 includes:
S31, using the frequency division multiplexing user group as a Virtual User, calculate the synthesis of the frequency division multiplexing user group
Channel gain；
S32, the channel gain for calculating all users to be selected；
S33, selection channel gain is best from the channel gain of the comprehensive channel gain and all users to be selected
First user of the user as space division multiplexing；
S34, the user that space division multiplexing is chosen according to the maximum principle of summation rate, the number of users of the space division multiplexing are equal to
The rf chain number of millimeter wave multiaerial system.
In the present embodiment, the purpose of space division multiplexing user selection is to realize the maximization of summation rate, in order to improve
The handling capacity of system is given the optimal user of channel gain and is preferentially selected to reduce the complexity of spatial reuse user selection
Power selects the maximum user of Signal to Noise Ratio (SNR) as first user, the selection of remaining space division multiplexing user can also be according to summation
Rate calculations formula is calculated, and the number of users of the space division multiplexing is equal to rf chain number K, that is, in addition to first user,
K-1 calculating is also carried out, selects corresponding space division multiplexing user, and be scheduled according to selection result.
In the present embodiment, after the step S30 further include:
Over the whole width according to the different different modulation coding schemes for waiting ranks of channel quality instruction selection.For example,
When channel quality is higher, using high order modulation coded format, when channel quality is lower, using low-order-modulated coded format, this
Sample also contributes to further increasing the handling capacity of system.
Embodiment three
As shown in fig. 7, in the present embodiment, a kind of frequency domain dispatching device, comprising:
Precoding module 10 is mixed, for, using mixing precoding, obtaining every to the user in millimeter wave multiaerial system
The simulation precoding weight of a user；
Frequency division multiplexing module 20 is used for all users to be divided into frequency division multiplexing according to the simulation precoding weight
Family group and user group to be selected；
Space division multiplexing module 30, for using the frequency division multiplexing user group as a Virtual User and described wait select
Family group carries out space division multiplexing scheduling together.
In the present embodiment, by the selection of different multiplex modes, it can be obviously improved the handling capacity of millimeter-wave communication system,
The interference between spatial reuse user is reduced, the performance gain of frequency division multiplexing user is improved.
In the present embodiment, in millimeter wave large-scale multi-antenna system, communication link has frequency selective fading,
That is, since millimeter wave is to the sensibility of frequency, so that certain band frequencies in whole bandwidth decline unstable, thus can
Lead to common frequency division multiplexing or code division multiplexing all and can not achieve the maximization of system velocity, and then the best appearance of system is not achieved
It measures, in this case in such a way that frequency division multiplexing combines, so that it may improve the handling capacity of communication system.
In the present embodiment, when the simple precoding processing using simulation, weight over the whole width be it is identical, it is unfavorable
The scheduling of frequency division multiplexing is carried out according to the weight of simulation precoding in us, therefore, in the present embodiment, using mixing precoding
Processing mode, namely in such a way that digital precode and simulation precoding combine, so that the simulation precoding of each user
Weight is no longer identical.
As shown in Fig. 2, be millimeter wave large-scale multi-antenna system operation principle schematic diagram, the system include transmitter,
Baseband channel and receiver, baseband channel are connect with transmitter and receiver by several radio frequency links, are set in baseband channel
It is equipped with multiple antennas mimo channel, is provided with precoder in transmitter.
In the present embodiment, the simulation precoding weight can be expressed by channel relevancy, due to millimeter wave channel
Sparse characteristic, the energy of each user is only focusing only on certain points in space, and the energy on other regions is seldom.
When the channel of multi-user is uncorrelated, they respectively correspond different wave beams, mitigate the interference between user whereby.Therefore, channel
Correlation can be used as judge user between with the presence or absence of interference evaluation criteria.
As shown in figure 8, in the present embodiment, the frequency division multiplexing module includes:
Correlation acquiring unit 21, for obtaining the channel relevancy of every two user；
Judging unit 22, for judging whether the channel relevancy is greater than preset correlation thresholding；
First frequency division multiplexing unit 23 is used for when channel relevancy is greater than preset correlation thresholding, will be described two
User is assigned to the same frequency division multiplexing user group；
First subscriber unit 24 to be selected is used for when channel relevancy is not more than preset correlation thresholding, will be with frequency division
The incoherent user of users multiplexing group is assigned to user group to be selected.
In the present embodiment, the user sharing whole bandwidth in the frequency division multiplexing user group, is dispatched respectively in link matter
It measures and sends respective signal in best frequency domain resource.
As shown in figure 4, be a schematic diagram of multi-user's frequency division multiplexing, in a scheduling time window, multiple spatial division multiplexings
Over the entire frequency band with user's group scheduling, wherein each member of user group has same space characteristic and distributes in different frequencies
It in rate subband, is interfered with each other to eliminate, includes K user on the frequency band, by believing between every two user as shown in Figure 4
The calculating of road correlation learns that the correlation between user 1, user 3 and user 5 is greater than preset correlation threshold value, this three
A user forms a frequency division multiplexing user group, also referred to as Virtual User group 1, and the correlation between user 2 and user 4 is also big
In preset correlation threshold value, then the two users form another frequency division multiplexing user group, also referred to as Virtual User group 2 its
All do not have correlation between his user and between other users and above-mentioned two frequency division multiplexing user group, is then all assigned to
User group to be selected.
In the embodiment shown in fig. 4, the user 1 in Virtual User group 1, user 3 and user 5 constitute frequency division multiplexing user
Group shares whole bandwidth, dispatches send respective signal in the best frequency domain resource of link-quality respectively；Virtual User group 2
Interior user 2, user 4 constitute frequency division multiplexing user group, share whole bandwidth, dispatch the frequency domain money best in link-quality respectively
Respective signal is sent on source.
As shown in figure 9, in the present embodiment, the space division multiplexing module includes:
Channel gain computing unit 31, for using the frequency division multiplexing user group as a Virtual User, described in calculating
The comprehensive channel gain of frequency division multiplexing user group；Calculate the channel gain of all users to be selected；
First user selection unit 32, for from the channel gain of the comprehensive channel gain and all users to be selected
Choose first user of the optimal user of channel gain as space division multiplexing；
Space division multiplexing user selecting unit 33, for choosing the user of space division multiplexing according to the maximum principle of summation rate,
The number of users of the space division multiplexing is equal to the rf chain number of millimeter wave multiaerial system.
In the present embodiment, the purpose of space division multiplexing user selection is to realize the maximization of summation rate, in order to improve
The handling capacity of system is given the optimal user of channel gain and is preferentially selected to reduce the complexity of spatial reuse user selection
Power selects the maximum user of Signal to Noise Ratio (SNR) as first user, the selection of remaining space division multiplexing user can also be according to summation
Rate calculations formula is calculated, and the number of users of the space division multiplexing is equal to rf chain number K, that is, in addition to first user,
K-1 calculating is also carried out, selects corresponding space division multiplexing user, and be scheduled according to selection result.
In the present embodiment, the frequency domain dispatching device further include:
Module is adjusted, for over the whole width according to the different different modulating-codings for waiting ranks of channel quality instruction selection
Mode.For example, when channel quality is higher, using high order modulation coded format, when channel quality is lower, using low-order-modulated
Coded format also contributes to the handling capacity for further increasing system in this way.
Example IV
As shown in Figure 10, in the present embodiment, the frequency division multiplexing module includes:
Beam direction acquiring unit 201, for obtaining the beam direction of each user；
Second frequency division multiplexing unit 202, for the identical user of beam direction to be assigned to frequency division multiplexing user group；
Second subscriber unit 203 to be selected, for beam direction is different from the beam direction of the frequency division multiplexing user group
User be assigned to user group to be selected.
In the present embodiment, the user sharing whole bandwidth in the frequency division multiplexing user group, is dispatched respectively in link matter
It measures and sends respective signal in best frequency domain resource.
As shown in figure 9, in the present embodiment, the space division multiplexing module includes:
Channel gain computing unit 31, for using the frequency division multiplexing user group as a Virtual User, described in calculating
The comprehensive channel gain of frequency division multiplexing user group；Calculate the channel gain of all users to be selected；
First user selection unit 32, for from the channel gain of the comprehensive channel gain and all users to be selected
Choose first user of the optimal user of channel gain as space division multiplexing；
Space division multiplexing user selecting unit 33, for choosing the user of space division multiplexing according to the maximum principle of summation rate,
The number of users of the space division multiplexing is equal to the rf chain number of millimeter wave multiaerial system.
In the present embodiment, the purpose of space division multiplexing user selection is to realize the maximization of summation rate, in order to improve
The handling capacity of system is given the optimal user of channel gain and is preferentially selected to reduce the complexity of spatial reuse user selection
Power selects the maximum user of Signal to Noise Ratio (SNR) as first user, the selection of remaining space division multiplexing user can also be according to summation
Rate calculations formula is calculated, and the number of users of the space division multiplexing is equal to rf chain number K, that is, in addition to first user,
K-1 calculating is also carried out, selects corresponding space division multiplexing user, and be scheduled according to selection result.
Embodiment five
In the present embodiment, a kind of frequency domain dispatching equipment, including memory, processor and at least one be stored in it is described
In memory and it is configured as the application program executed by the processor, the application program is configurable for executing implementation
Frequency domain dispatching method described in example one, two.
It should be noted that above-mentioned apparatus embodiment and embodiment of the method belong to same design, specific implementation process is detailed
See embodiment of the method, and the technical characteristic in embodiment of the method is corresponding applicable in Installation practice, which is not described herein again.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to be realized by hardware, but very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
Preferred embodiments of the present invention have been described above with reference to the accompanying drawings, not thereby limiting the scope of the invention.This
Field technical staff without departing from the scope and spirit of the invention in made by any modifications, equivalent replacements, and improvements, should all this
Within the interest field of invention.
Claims (12)
1. a kind of frequency domain dispatching method characterized by comprising
To the user in millimeter wave multiaerial system using mixing precoding, the simulation precoding weight of each user is obtained；
All users are divided into frequency division multiplexing user group and user group to be selected according to the simulation precoding weight；
Space division multiplexing tune is carried out together using the frequency division multiplexing user group as a Virtual User and the user group to be selected
Degree.
2. a kind of frequency domain dispatching method according to claim 1, which is characterized in that described to simulate the code weight that prelists according to described
All users are divided into frequency division multiplexing user group to value and user group to be selected includes:
Obtain the channel relevancy of every two user；
Judge whether the channel relevancy is greater than preset correlation thresholding；
If so, described two users are assigned to the same frequency division multiplexing user group；
Otherwise, user group to be selected will be assigned to the incoherent user of frequency division multiplexing user group.
3. a kind of frequency domain dispatching method according to claim 1, which is characterized in that described to simulate the code weight that prelists according to described
All users are divided into frequency division multiplexing user group to value and user group to be selected includes:
Obtain the beam direction of each user；
The identical user of beam direction is assigned to frequency division multiplexing user group；
The beam direction user different from the beam direction of the frequency division multiplexing user group is assigned to user group to be selected.
4. a kind of frequency domain dispatching method according to claim 2 or 3, which is characterized in that in the frequency division multiplexing user group
User sharing whole bandwidth, dispatch send respective signal in the best frequency domain resource of link-quality respectively.
5. a kind of frequency domain dispatching method according to claim 2 or 3, which is characterized in that described to use the frequency division multiplexing
Family group carries out space division multiplexing scheduling as a Virtual User and the user group to be selected together
Using the frequency division multiplexing user group as a Virtual User, the comprehensive channel for calculating the frequency division multiplexing user group increases
Benefit；
Calculate the channel gain of all users to be selected；
Make from the optimal user of channel gain is chosen in the channel gain of the comprehensive channel gain and all users to be selected
For the first user of space division multiplexing；
The user of space division multiplexing is chosen according to the maximum principle of summation rate, it is more that the number of users of the space division multiplexing is equal to millimeter wave
The rf chain number of antenna system.
6. a kind of frequency domain dispatching method according to claim 1, which is characterized in that described by the frequency division multiplexing user group
After carrying out space division multiplexing scheduling together as a Virtual User and the user group to be selected further include:
Over the whole width according to the different different modulation coding schemes for waiting ranks of channel quality instruction selection.
7. a kind of frequency domain dispatching device characterized by comprising
Precoding module is mixed, for, using mixing precoding, obtaining each user to the user in millimeter wave multiaerial system
Simulation precoding weight；
Frequency division multiplexing module, for according to the simulation precoding weight by all users be divided into frequency division multiplexing user group and
User group to be selected；
Space division multiplexing module, for using the frequency division multiplexing user group as a Virtual User and the user group to be selected one
It rises and carries out space division multiplexing scheduling.
8. a kind of frequency domain dispatching device according to claim 7, which is characterized in that the frequency division multiplexing module includes:
Correlation acquiring unit, for obtaining the channel relevancy of every two user；
Judging unit, for judging whether the channel relevancy is greater than preset correlation thresholding；
First frequency division multiplexing unit, for when channel relevancy is greater than preset correlation thresholding, described two users to be divided
It is fitted on the same frequency division multiplexing user group；
First subscriber unit to be selected, for that will be used with frequency division multiplexing when channel relevancy is not more than preset correlation thresholding
Group incoherent user in family is assigned to user group to be selected.
9. a kind of frequency domain dispatching device according to claim 7, which is characterized in that the frequency division multiplexing module includes:
Beam direction acquiring unit, for obtaining the beam direction of each user；
Second frequency division multiplexing unit, for the identical user of beam direction to be assigned to frequency division multiplexing user group；
Second subscriber unit to be selected, for dividing the beam direction user different from the beam direction of the frequency division multiplexing user group
It is fitted on user group to be selected.
10. a kind of frequency domain dispatching device according to claim 8 or claim 9, which is characterized in that in the frequency division multiplexing user group
User sharing whole bandwidth, dispatch send respective signal in the best frequency domain resource of link-quality respectively.
11. a kind of frequency domain dispatching device according to claim 8 or claim 9, which is characterized in that the space division multiplexing module packet
It includes:
Channel gain computing unit, for it is multiple to calculate the frequency division using the frequency division multiplexing user group as a Virtual User
With the comprehensive channel gain of user group；Calculate the channel gain of all users to be selected；
First user selection unit, for choosing letter from the channel gain of the comprehensive channel gain and all users to be selected
First user of the gain optimal user in road as space division multiplexing；
Space division multiplexing user selecting unit, for choosing the user of space division multiplexing, the sky according to the maximum principle of summation rate
The rf chain number for dividing the number of users of multiplexing to be equal to millimeter wave multiaerial system.
12. a kind of frequency domain dispatching equipment, including memory, processor and at least one be stored in the memory and matched
It is set to the application program executed by the processor, which is characterized in that the application program is configurable for perform claim and wants
Seek the described in any item frequency domain dispatching methods of 1-6.
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