CN104168595B - A kind of coordinated multi-point transmission method, apparatus and system - Google Patents
A kind of coordinated multi-point transmission method, apparatus and system Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, apparatus and system, is related to communication technical field, the problem of solving the utilization rate and relatively low network capacity of network spectrum.This method includes：Receive the metrical information that UE is sent；According to the signal intensity of the UE received of UE in metrical information two neighbor cells, it is cell edge UE to determine UE；If the maximum of UE quality of service is less than or equal to default first quality of service threshold value, then determine UE cooperation UE, cooperation UE is in a neighbor cell in two neighbor cells, the signal intensity of the neighbor cell received is more than or equal to the first signal strength threshold, and a UE of the maximum less than or equal to default second quality of service threshold value of quality of service；It is UE and cooperation UE distribution identical running time-frequency resources in two neighbor cells, for transmitting UE signals waiting for transmission and cooperation UE signals waiting for transmission.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of coordinated multi-point transmission method, apparatus and system.
Background technology
In a communications system, co-channel interference is influence LTE (Long Term Evolution, Long Term Evolution) network performance
Key factor.In order to solve problem of co-channel interference, 3GPP (The 3rd Generation Partnership Project,
Third generation partner program) LTE-A (LTE-Advanced, LTE evolution version) propose it is a kind of based on minizone cooperation
CoMP (Coordinated Multipoint, cooperate with multicast communication) technology, the CoMP technologies are by suppressing or using small
Interval interference, can lift the user equipment (English positioned at cell edge：User equipment, abbreviation：UE reception)
Signal to noise ratio.Wherein, CoMP technologies are divided into up CoMP joint reception techniques and downstream signal joint processing technology.
In the prior art, realize that the major way that up CoMP combines reception technique is：One serving cell and multiple associations
Make cell while receiving the UE positioned at cell edge, i.e. the signal of cell edge UE transmission, then multiple cooperation cells are respectively again
The signal received is sent to the serving cell, and the multiple signals received by the serving cell to these different districts enter
Row, which merges, to be received, and signal to noise ratio is received so as to improve the up of cell edge UE.Wherein, the serving cell and multiple cooperations
Cell can for base station different districts or the different districts of different base station.
However, although above-mentioned up CoMP joints reception technique ensure that cell edge UE uplink receiving signal to noise ratio, but
It is due to that a cell edge UE needs to take uplink running time-frequency resource (including the time-domain resource of two or more cells
And frequency domain resource), therefore the utilization rate and network capacity of network spectrum are relatively low.
The content of the invention
Embodiments of the invention provide a kind of coordinated multi-point transmission method, apparatus and system, solve the profit of network spectrum
The problem of with rate and relatively low network capacity.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
In a first aspect, the present invention provides a kind of coordinated multi-point transmission method, including：
The metrical information that user equipment (UE) is sent is received, the metrical information includes the two of the UE that the UE is received
The signal intensity of individual neighbor cell；
According to the signal intensity of the UE UE received two neighbor cells, it is cell edge to determine the UE
UE；
If the maximum of the quality of service of the UE is less than or equal to default first quality of service threshold value, it is determined that the UE
Cooperation UE, during the cooperation UE is a neighbor cell in described two neighbor cells, reception it is one adjacent small
The signal intensity in area is more than or equal to the first signal strength threshold, and the maximum of quality of service is less than or equal to default second business
One UE of quality threshold；
It is the UE and cooperation UE distribution identical running time-frequency resources in described two neighbor cells, for transmitting
The UE signals waiting for transmission and the cooperation UE signals waiting for transmission.
Second aspect, the present invention provides a kind of coordinated multipoint transmission device, including：
Receiving unit, the metrical information for receiving user equipment (UE) transmission, the metrical information includes the UE and connect
The signal intensity of the UE received two neighbor cells；
Determining unit, two neighbor cells for the UE that the UE for being received according to the receiving unit is received
Signal intensity, determine the UE be cell edge UE, and if the UE quality of service maximum be less than or equal to it is default
First quality of service threshold value, it is determined that the cooperation UE, the cooperation UE of the UE is a phase in described two neighbor cells
In adjacent cell, the signal intensity of one neighbor cell of reception is more than or equal to the first signal strength threshold, and quality of service
Maximum be less than or equal to default second quality of service threshold value a UE；
Allocation unit, for the UE in described two neighbor cells being the determining unit determination and the association
Make UE distribution identical running time-frequency resources, the running time-frequency resource is used to transmit UE signals waiting for transmission and the cooperation UE is to be passed
Defeated signal.
The third aspect, the present invention provides a kind of multipoint cooperative transmission system, including：
Coordinated multipoint transmission device and at least one and the coordinated multipoint transmission device as described in above-mentioned second aspect
The user equipment (UE) carried out data transmission.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, apparatus and system, by the measurement for receiving UE transmissions
Information, and the signal intensity of two neighbor cells according to the UE carried in metrical information UE received, determine that the UE is
Cell edge UE, and if the quality of service of the UE maximum be less than or equal to default first quality of service threshold value, it is determined that should
UE cooperation UE, and be that the UE and cooperation UE distributes identical running time-frequency resource in two neighbor cells, for passing
Defeated UE signals waiting for transmission and cooperation UE signals waiting for transmission.By the program, in UE signals to be transmitted, due to base station
It is cell edge UE that the UE, which can first be determined, and if the maximum of cell edge UE quality of service is less than or equal to default the
One quality of service, then base station is that the UE determines a cooperation UE, and base station is that the UE and cooperation UE are adjacent small at this two
Identical running time-frequency resource is distributed in area, with simultaneous transmission UE signals waiting for transmission on the identical running time-frequency resource and the association
Make UE signals waiting for transmission, need to be while taking multiple cells when solving cell edge UE transmission signal in the prior art
Running time-frequency resource, therefore the problem of the utilization rate and relatively low network capacity of network spectrum, so as to improve the utilization of network spectrum
Rate and network capacity.
Brief description of the drawings
Fig. 1 is the block diagram one of multipoint cooperative transmission system provided in an embodiment of the present invention；
Fig. 2 is the block diagram two of multipoint cooperative transmission system provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart one of coordinated multi-point transmission method provided in an embodiment of the present invention；
Fig. 4 is a kind of interaction figure one of coordinated multi-point transmission method provided in an embodiment of the present invention；
Fig. 5 is a kind of flowchart 2 of coordinated multi-point transmission method provided in an embodiment of the present invention；
Fig. 6 is coordinated multipoint transmission apparatus structure schematic diagram one provided in an embodiment of the present invention；
Fig. 7 is coordinated multipoint transmission apparatus structure schematic diagram two provided in an embodiment of the present invention；
Fig. 8 is a kind of architecture of base station block diagram provided in an embodiment of the present invention；
Fig. 9 is the block diagram three of multipoint cooperative transmission system provided in an embodiment of the present invention.
Embodiment
Technical scheme is done further in detail with reference to the accompanying drawing in the specific embodiment of the invention and embodiment
Carefully, complete description, it is clear that described embodiment is only section Example of the invention schematical, rather than whole realities
Apply example.
In embodiment of the invention below, described cell edge UE two neighbor cells can be same base station
Two different districts, or for different base station two different districts.If two neighbor cells are two of same base station
Different districts, then the multipoint cooperative transmission system block diagram provided in the embodiment of the present invention are as shown in figure 1, can be between two cells
Pass through the high speed input/output (English of inside of base station：Input/output, abbreviation：I/O) interface carries out data interaction, so that
The two paths of signals for the cell edge UE that base station is received to two cells merges reception.If two neighbor cells be two not
With two different districts of base station, then the multipoint cooperative transmission system block diagram provided in the embodiment of the present invention is as shown in Fig. 2 two
Data interaction can be carried out by the X2 interface between two base stations between cell, so that by a base in two different base stations
The cell edge UE received to two cells the two paths of signals of standing merges reception.Wherein, merge reception and refer to base station pair
The cell edge UE received two paths of signals, by using Maximal ratio combiner (English：maximal ratio
Combining, abbreviation：MRC), using equal gain combining (English：Equal gain combining, abbreviation：EGC), or adopt
With selection combination (English：Selection combining, abbreviation：) etc. SC merge mode, obtain cell edge UE transmission
Signal process.
Embodiment one
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, as shown in figure 3, this method can include：
S101, base station receive the metrical information that UE is sent, and the metrical information includes the UE of UE receptions two phases
The signal intensity of adjacent cell.
S102, base station are according to the signal intensity of the UE UE received two neighbor cells, and it is cell side to determine the UE
Edge UE.
If the maximum of S103, the UE quality of service is less than or equal to default first quality of service threshold value, it is determined that should
UE cooperation UE, cooperation UE be two neighbor cells in a neighbor cell in, a neighbor cell for reception
Signal intensity is more than or equal to the first signal strength threshold, and the maximum of quality of service is less than or equal to default second quality of service
One UE of threshold value.
S104, base station are the UE and cooperation UE distribution identical running time-frequency resources in two neighbor cells, are used for
Transmit UE signals waiting for transmission and cooperation UE signals waiting for transmission.
In embodiments of the present invention, the metrical information that UE is configured according to base station reports principle, and metrical information is sent to base station.
Specifically, UE detect the UE receive the UE adjacent several cells signal intensity, and from the UE receive the UE it is adjacent
The signal intensity of selection signal intensity most strong two neighbor cells in the signal intensity of several cells, and the two are adjacent
The signal intensity of cell carries and is sent to base station in the metrical information of the UE.What the UE that base station receives UE transmissions was received
After the signal intensity of two neighbor cells of the UE, the signal that the UE of UE receptions two neighbor cells are contrasted respectively is strong
The size of degree and default secondary signal intensity threshold, if the signal intensity of two neighbor cells for the UE that UE is received is all small
In default secondary signal intensity threshold, then base station can determine that the UE is cell edge UE.
Optionally, the signal intensity provided in the embodiment of the present invention can be Reference Signal Received Power (English：
Reference Signal Receiving Power, abbreviation：RSRP)；Can also be signal and interference and noise ratio (English：
Signal to Interference and Noise Ratio, abbreviation：SINR), it can also can represent that UE receives for other
The UE two neighboring cell signal intensity parameter.If for example, assuming that signal intensity provided in an embodiment of the present invention is
RSRP, and the RSRP of the UE of UE receptions two neighboring cell is respectively RSRP1And RSRP2, default secondary signal intensity threshold
It is worth for RSRPth, then RSRP is worked as1<RSRPth, and RSRP2<RSRPthWhen, base station can determine that the UE is cell edge UE.
In the embodiment of the present invention, after it is cell edge UE that base station, which determines the UE, base station need to be according to all industry of the UE
The value of business quality determines the quality of service requirement for all business that the UE is asked.Specifically, first business can be preset
Maximum in quality threshold, all quality of services of the base station by contrasting the UE is sentenced with the size of the first quality of service threshold value
Disconnected UE quality of service requirement, when the maximum of the quality of service of the UE is less than or equal to the first quality of service threshold value, base station
The UE that the UE is low quality of service requirement can be determined.The value of the quality of service can identify (English with service quality rating：
QoS Class Identifier, abbreviation：QCI the design parameter in) is characterized, such as packet loss, packet delay, the bit error rate and excellent
At least one in first level etc., can also be characterized with the transmission rate of the UE institutes requested service.For example, it is assumed that with packet loss
The value of the quality of service of the UE is characterized, then the packet loss for the business that the UE is asked is smaller, characterize the business that the UE is asked
The value of quality of service is bigger, and the quality of service requirement for the business that the UE is asked is higher.That is in all business that the UE is asked
The maximum business of the value of quality of service in the minimum business of packet loss, all business asked for the UE.If presetting for table
The threshold value for levying the packet loss of the first quality of service threshold value is 10-5, the minimum in the packet loss of the UE all business asked
Value is more than or equal to 10-5When, base station can determine that the maximum of the quality of service of the UE is less than or equal to the first quality of service threshold value, then
Base station determines the UE that the UE is low quality of service requirement.
For another example assuming to characterize the transmission of the value, the then business that the UE is asked of the quality of service of the UE with transmission rate
Speed is bigger, and the value for characterizing the quality of service for the business that the UE is asked is bigger, and the service quality for the business that the UE is asked will
Ask higher.That is industry in the maximum business of transmission rate, all business asked for the UE in all business that the UE is asked
The maximum business of the value for quality of being engaged in.If the threshold value for presetting the transmission rate for characterizing the first quality of service threshold value is 3 megabit per seconds
(unit symbol：Mbps), when the maximum in the transmission rate of the UE all business asked is less than or equal to 3Mbps, base
Stand the quality of service that can determine the UE maximum be less than or equal to the first quality of service threshold value, then base station determine the UE be low clothes
The UE of business quality requirement.
In QCI provided in an embodiment of the present invention design parameter, the other specification in addition to packet loss, such as Bao Yan
When, the bit error rate, priority etc. characterizes the mode of value of the quality of service of the UE with above two characteristic manner, no longer goes to live in the household of one's in-laws on getting married herein
State.Further, the value of the quality of service of the UE can also be characterized with the multiple parameters in above-mentioned parameter.For example with the UE
The transmission rate and packet loss of institute's requested service characterize the value of the quality of service of the UE, and the threshold value of Preset Transfer speed is 3Mbps,
And the threshold value of packet loss is 10-5To characterize the first quality of service threshold value respectively, when the packet loss of the UE all business asked
In minimum value be more than or equal to 10-5, and maximum in the transmission rates of all business asked of the UE is less than or equal to 3Mbps
When, base station can determine that the maximum of the quality of service of the UE is less than or equal to the first quality of service threshold value, then base station determines the UE
For the UE of low quality of service requirement.
When base station determines the UE that the UE is low quality of service requirement, base station need to select a cooperation UE, the association for the UE
In making UE and being a neighbor cell in two neighbor cells, the signal intensity of a neighbor cell of reception is more than
Maximum equal to the UE of default first signal strength threshold, and the quality of service of the UE is less than or equal to default second business
Quality threshold.Specifically, base station can in a neighbor cell first in two neighbor cells, select to receive this one
The signal intensity of individual neighbor cell is more than or equal to all UE of the first signal strength threshold, and base station in all UE, selects industry again
The maximum for quality of being engaged in is less than or equal to the UE of default second quality of service threshold value.Then base station can determine that the UE is two phases
In adjacent cell, the UE that signal quality is good and quality of service requirement is relatively low, and using the UE as cell edge UE cooperation UE.Or
Person, base station can also first select the maximum in a neighbor cell in two neighbor cells in all quality of services to be less than
Equal to all UE of the second quality of service threshold value, maximum of the base station in all quality of services is less than or equal to the second quality of service
In all UE of threshold value, the signal intensity of the neighbor cell received is selected to be more than or equal to the first signal strength threshold
UE, then base station can determine the UE be two neighbor cells in, the UE that signal quality is preferable and quality of service requirement is relatively low, and
The UE is selected as cell edge UE cooperation UE.Wherein, first signal strength threshold and the second quality of service threshold value
Occurrence can be configured according to being actually needed.For example, it is assumed that the first signal strength threshold is SINRth, SINR is setthFor
18 decibels of (unit symbols：), db the threshold value of the packet loss for characterizing the second quality of service threshold value is 10-6, then the UE receive
The SINR of one neighbor cell is more than or equal to 18db, then base station can determine that the UE is the preferable UE of signal quality, the UE's
Minimum value in the packet loss of all business is more than or equal to 10-6, then base station can determine the UE for quality of service requirement it is relatively low
UE, then base station can select the UE as cell edge UE cooperation UE.Further, if the cooperation UE that base station is determined
Have multiple, then base station can randomly choose a cooperation UE as cell edge UE cooperation UE from the plurality of cooperation UE.Its
In, the second quality of service threshold value characterizes the first quality of service threshold by the characteristic manner of design parameter with passing through design parameter
The mode of value is identical, will not be repeated here again.And in embodiments of the present invention, signal quality is signal intensity.
Base station selects after a cooperation UE for the UE, i.e. cell edge UE, and is cell edge UE and cooperation UE
Identical running time-frequency resource is distributed, for transmitting cell edge UE signals waiting for transmission and cooperation UE signals waiting for transmission.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, by receiving the metrical information of UE transmissions, and according to
The signal intensity of two neighbor cells for the UE that the UE carried in metrical information is received, it is cell edge UE to determine the UE,
And if the maximum of the quality of service of the UE is less than or equal to default first quality of service threshold value, it is determined that the cooperation UE of the UE,
And be that the UE and cooperation UE distributes identical running time-frequency resource in two neighbor cells, it is to be transmitted for transmitting the UE
Signal and cooperation UE signals waiting for transmission.By the program, in UE signals to be transmitted, because base station can first determine this
UE be cell edge UE, and if cell edge UE quality of service maximum be less than or equal to default first quality of service threshold
Value, then base station is that the UE determines a cooperation UE, and base station is UE points of the UE and the cooperation in two neighbor cells
It is to be passed with simultaneous transmission UE signals waiting for transmission on the identical running time-frequency resource and cooperation UE with identical running time-frequency resource
Defeated signal, need to be while take the time-frequency money of multiple cells when solving a cell edge UE transmission signal in the prior art
Source, therefore the problem of the utilization rate and relatively low network capacity of network spectrum, so as to improve the utilization rate and net of network spectrum
Network capacity.
Embodiment two
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, as shown in figure 4, this method can include：
S201, UE send metrical information to base station, and the metrical information includes the two adjacent small of the UE of UE receptions
The signal intensity in area.
S202, base station contrast the signal intensity and the default second letter of the UE of UE receptions two neighbor cells respectively
Number intensity threshold.
If the signal intensity of two neighbor cells for the UE that S203, the UE are received, which is respectively less than, is equal to the secondary signal intensity
Threshold value, then base station determine the UE be cell edge UE.
S204, the maximum in base station contrast cell edge UE all quality of services and default first quality of service threshold
Value.
If the maximum in S205, cell edge UE all quality of services is less than or equal to the first quality of service threshold
Value, then base station determine cell edge UE cooperation UE, during cooperation UE is a neighbor cell in two neighbor cells,
The signal intensity of the neighbor cell received is more than or equal to the first signal strength threshold, and the maximum of quality of service is less than
Equal to a UE of default second quality of service threshold value.
S206, base station are cell edge UE and cooperation UE distribution identical time-frequency moneys in two neighbor cells
Source, for transmitting cell edge UE signals waiting for transmission and cooperation UE signals waiting for transmission.
S207, cell edge UE send cell edge UE signals waiting for transmission to base station, and cooperation UE is to base
Stand and send cooperation UE signals waiting for transmission.
S208, base station receive cell edge UE in two neighbor cells and cooperation UE up multiple spot connects
The collection of letters number, and serial interference elimination is carried out to the ascending multi-point collaboration signal, the signal of cell edge UE transmission is obtained respectively
The signal transmitted with cooperation UE.
In embodiments of the present invention, UE detect the UE receive the UE several neighbor cells signal intensity, and from this
The signal of selection signal intensity most strong two neighbor cells is strong in the signal intensity of the several neighbor cells for the UE that UE is received
Degree, is carried in the metrical information of the UE, and measurement report that UE is configured according to base station reports principle, and measurement letter is sent to base station
Breath.Base station contrasts the signal intensity and default secondary signal intensity threshold of the UE of UE receptions two neighbor cells respectively
Value, if base station, which judges that the signal intensity of two neighbor cells for the UE that the UE is received is respectively less than, is equal to the secondary signal intensity threshold
It is worth, then base station can determine that the UE is cell edge UE；If base station judges the letter of two neighbor cells for the UE that the UE is received
At least one signal intensity is more than the secondary signal intensity threshold in number intensity, then base station judges that the UE is not cell edge
UE.For example, the metrical information that UE is sent to base station includes the RSRP of the UE of UE receptions two neighboring cell, it is respectively
RSRP1And RSRP2, and default secondary signal intensity threshold is RSRPthIf, then RSRP1And RSRP2Respectively less than it is equal to
RSRPth, then base station can determine the UE be cell edge UE；If RSRP1And RSRP2In at least one be more than RSRPth, then base
Standing can determine that the UE is not cell edge UE.Wherein, the signal intensity can also can represent the UE that UE is received for other
Two neighboring cell signal intensity parameter, such as the UE receive the UE two neighboring cell SINR.
In the embodiment of the present invention, after it is cell edge UE that base station, which determines the UE, base station need to be according to cell edge UE
The values of all quality of services determine the quality of service requirements of all business that cell edge UE is asked.Specifically, passing through
Judge whether the maximum in cell edge UE all quality of services is less than or equal to the first quality of service threshold value to determine this
Cell edge UE whether be low quality of service requirement UE.If the base station determine that the maximum in all quality of services of the UE is small
In equal to the first quality of service threshold value, then base station determines the UE that cell edge UE is low quality of service requirement, so that base station can
Think that cell edge UE selects cooperation a UE, cooperation UE in a neighbor cell in two neighbor cells, to connect
Receive a neighbor cell signal intensity be more than or equal to the first signal strength threshold, and quality of service maximum be less than etc.
In a UE of default second quality of service threshold value.
Wherein, base station is the selection course that cell edge UE selects cooperation cell, specifically be may refer in embodiment one
Selection course described by S103, will not be repeated here.
After base station is that cell edge UE selects a cooperation UE, base station is the cell in two neighbor cells
Edge UE and cooperation UE distributes identical running time-frequency resource, for transmitting cell edge UE signals waiting for transmission and cooperation UE
Signal waiting for transmission so that cell edge UE and cooperation UE transmitted at the same time on a running time-frequency resource it is to be passed
Defeated signal, and then the utilization rate of network spectrum can be improved, improve network capacity.When base station in two neighbor cells
Receive after the up multipoint reception signal that cell edge UE and cooperation UE is transmitted, base station can be to cell edge UE and this
Cooperation UE up multipoint reception signal carries out serial interference elimination operation, to obtain the signal of cell edge UE transmission respectively
The signal transmitted with cooperation UE.
Specifically, two neighbor cells for assuming above-mentioned cell edge UE are respectively No. 1 cell and No. 2 cells, and the association
The serving cell for making UE is No. 2 cells, and cell edge UE serving cell is No. 1 cell, and base station is the cell edge
UE and cooperation UE distribute identical running time-frequency resource in No. 1 cell and No. 2 cells, and cell edge UE is distributed by base station
Running time-frequency resource send cell edge UE signals waiting for transmission, and the running time-frequency resource that cooperation UE is distributed by base station to base station
Cooperation UE signals waiting for transmission are sent to base station, so that the cell edge UE that base station is received in No. 1 cell and No. 2 cells
It is with the cooperation UE up multipoint reception signals transmitted：
y1=h11x1+h12x2+n1
y2=h21x1+h22x2+n2
Wherein, x1It is the signal of cell edge UE transmission, x2It is the signal of cooperation UE transmission, y1It is that base station is small from No. 1
The up multipoint reception signal that the cell edge UE and cooperation UE that area is received are transmitted, y2It is that base station is received from No. 2 cells
The up multipoint reception signal that cell edge UE and cooperation UE is transmitted, ni, i=1,2 be the reception noise of i cells, hij,
I=1,2；J=1,2 is frequency domain channel state information of the i cells to j-th of UE.Base station passes through the up multiple spot to receiving
Receive signal y1And y2Serial interference elimination is carried out, the signal x of cell edge UE transmission can be obtained respectively1With cooperation UE
The signal x of transmission2.Specifically, base station obtains x1And x2Process it is as follows：
(1) base station detects the signal y received2Middle signal intensity most strong signal x2, by y2In not include x2Remaining
Part is fallen as noise cancellation, and decoding obtains the signal x of cooperation UE transmission2。
(2) the signal x that base station is transmitted according to the cooperation UE decoded out2, by the signal x of UE transmission that cooperates2In signal y2Middle bag
Include x2Part carry out disturbance reconstruction counteracting, obtain signal y2Eliminating the signal x of cooperation UE transmission2Remaining signal afterwardsThe signalOf equal value for cell edge UE receives signal.
Further, if No. 1 cell and the different districts that No. 2 cells are same base station, as shown in Figure 1, then No. 2
Cell is by the high-speed i/o interface in base station, by the signal x of UE transmission that cooperates2Of equal value with cell edge UE receives signal
It is transferred to No. 1 cell.If No. 1 cell and the different districts that No. 2 cells are different base station, as shown in Figure 2, then for No. 2 bases
Stand by the X2 interface between No. 2 base stations and No. 1 base station, by the signal x of UE transmission that cooperates2Received with cell edge UE equivalence
SignalIt is transferred to No. 1 base station.Wherein, No. 2 base stations provide service for No. 2 cells, and No. 1 base station provides service for No. 1 cell.
(3) base station receives the signal x of cooperation UE transmission2Of equal value with cell edge UE receives signalAfterwards, by the UE that cooperates
The signal x of transmission2The signal y received in No. 1 cell1Include x2Part carry out disturbance reconstruction counteracting, obtain signal y1
Eliminate the signal x of cooperation UE transmission2Remaining signal afterwardsThe signalAlso connect for cell edge UE equivalence
The collection of letters number.WhereinI=1,2 is docking collection of letters y1And y2In cooperation UE transmission signal x2Carry out after disturbance reconstruction counteracting
Equivalent noise.
(4) the of equal value of cell edge UE is received signal by base stationWithReception is merged, cell edge UE biographies are obtained
Defeated signal x1。
Further, in above-mentioned steps (4), base station receives signal to the of equal value of cell edge UEWithMerge
The mode of reception can use MRC, it would however also be possible to employ EGC, or using SC etc..Base station is connect by the equivalence to cell edge UE
The collection of letters numberWithMerging reception processing, the purpose for the signal to noise ratio for improving cell edge UE can be reached.
In embodiments of the present invention, base station is believed the cell edge UE and cooperation UE up multipoint reception that receive
Before number carrying out serial interference elimination, in being two neighbor cells due to base station selected cooperation UE, reception should
The signal intensity of a neighbor cell in two neighbor cells is more than default first signal strength threshold, and quality of service
Maximum is less than or equal to the UE of default second quality of service threshold value, i.e. cooperation UE is in two neighbor cell, signal quality
The preferable and relatively low UE of quality of service requirement.
Further, in a neighbor cell in base station selected two neighbor cells, a neighbor cell for reception
Signal intensity be more than the UE of a default signal strength threshold as cell edge UE cooperation UE, be to ensure base station
After the up multipoint reception signal for receiving cell edge UE and cooperation UE, base station carries out serial to the up multipoint reception signal
Interference eliminate when, solve the cell edge UE transmission signal the bit error rate and cooperation UE transmit signal the bit error rate compared with
It is small, so as to ensure that base station accurately decodes out the signal that the signal and cooperation UE of cell edge UE transmission are transmitted.Accordingly
, in base station selected two neighbor cells, the maximum of quality of service is less than or equal to the UE of the second quality of service threshold value as small
Area edge UE cooperation UE, be in order to ensure cell edge UE and cooperation UE in cooperation transmission data, do not interfere with the cooperation
UE data transfer, so as in the case where ensureing cooperation UE data transfer, complete cell edge UE data transfer.
Further, the serial of the signal of the signal of cell edge UE transmission and cooperation UE transmission is completed for the first time
After interference cancellation operation, i.e. decoded operation, the signal that the signal and cooperation UE of cell edge UE transmission are transmitted is also possible to deposit
In certain bit error rate, therefore after decoded operation is completed, it can also be translated between No. 1 cell and No. 2 cells by iteration
The accuracy of the mode of code, the further signal that the signal and cooperation UE of raising reception cell edge UE transmission are transmitted.
Further, selected in coordinated multi-point transmission method provided in an embodiment of the present invention in two neighbor cells
In one neighbor cell, the signal intensity of a neighbor cell of reception is more than or equal to one of the first signal strength threshold
UE, it is possible to increase base station receives the accuracy of the signal of cell edge UE transmission, it is ensured that the signal of cell edge UE transmission
Signal to noise ratio, while again due to base station is cell edge UE in two neighbor cells and cooperation UE be assigned with it is identical
Running time-frequency resource, for transmitting cell edge UE signals waiting for transmission and cooperation U signals waiting for transmission, hence in so that this is small
Area edge UE and cooperation UE can be solved one small in the prior art on same running time-frequency resource to base station transmission signal
Area edge UE need to take the running time-frequency resource of multiple cells, therefore the utilization rate and network capacity of network spectrum simultaneously when transmitting signal
Relatively low the problem of, so as to improve the utilization rate and network capacity of network spectrum.
Further, as shown in figure 5, coordinated multi-point transmission method provided in an embodiment of the present invention, after above-mentioned S204,
It can also include：
If the maximum in S209, cell edge UE all quality of services is more than the first quality of service threshold value,
Identical running time-frequency resource is distributed in base station in two neighbor cells for cell edge UE, is treated for transmitting cell edge UE
The signal of transmission.
S210, cell edge UE send cell edge UE signals waiting for transmission to base station.
S211, base station receive the signal of cell edge UE transmission.
In embodiments of the present invention, base station determine the UE be cell edge UE after, by the institute for contrasting cell edge UE
There are the maximum and default first quality of service threshold value in quality of service, if it is determined that cell edge UE all business matter
Maximum in amount is more than the first quality of service threshold value, then base station can determine that cell edge UE is high quality-of-service requirement
UE, so that base station can distribute identical running time-frequency resource for cell edge UE in two neighbor cells, for transmission
Cell edge UE signals waiting for transmission, to meet cell edge UE high quality-of-service requirement.
Specifically, assuming that two neighbor cells are respectively No. 1 cell and No. 2 cells.Base station is cell edge UE 1
Distribute identical running time-frequency resource in number cell and No. 2 cells, the running time-frequency resource that cell edge UE is distributed by base station is to base station
Cell edge UE signals waiting for transmission are sent, the cell edge UE transmission that base station is received in No. 1 cell and No. 2 cells
Signal is:
y1=h1x+n1
y2=h2x+n2
Wherein hi, i=1,2 be frequency domain channel state information of the i cells to cell edge UE, and x is the cell edge
The signal of UE transmission, ni, i=1,2 be the reception noise of i cells, y1It is the cell edge UE that base station is received from No. 1 cell
The signal of transmission, y2It is the signal for the cell edge UE transmission that base station is received from No. 2 cells.If No. 1 cell and No. 2 cells
For the different districts of same base station, as shown in Figure 1, then No. 2 cells are by the high-speed I/O interface in base station, by what is received
Signal y2No. 1 cell is transferred to, then the signal of two-way cell edge UE transmission by base station to receiving merges reception,
Obtain the signal of cell edge UE transmission.If No. 1 cell and the different districts that No. 2 cells are different base station, such as Fig. 2 institutes
Show, then No. 2 base stations are by the X2 interface between No. 2 base stations and No. 1 base station, and the cell edge UE that No. 2 cells are received is passed
Defeated signal y2It is transferred to No. 1 base station.The two paths of signals of cell edge UE by No. 1 base station to receiving does merging and received,
Obtain the signal of cell edge UE transmission.Wherein base station can to the merging mode of the cell edge UE received two paths of signals
To use MRC, it would however also be possible to employ EGC, or using SC etc..Base station passes through the reception signal y to cell edge UE1And y2Conjunction
And receive, the purpose for the signal to noise ratio for improving cell edge UE can be reached.
Further, in coordinated multi-point transmission method provided in an embodiment of the present invention, after above-mentioned S201, it can also wrap
Include：
If S212, the UE receive the UE two neighbor cells signal intensity at least one be more than the secondary signal
Intensity threshold, then base station determine that the UE is not cell edge UE.
Establish a connection, carry out data transmission between S213, the UE and base station.
In embodiments of the present invention, if base station determine signal intensity in the metrical information transmitted by the UE at least one
More than the secondary signal intensity threshold, then it is not cell edge UE that can determine the UE.For example, the measurement that UE is reported to base station is believed
Breath includes the RSRP, respectively RSRP of the UE of UE receptions two neighboring cell1And RSRP2, and default signal intensity threshold
It is worth for RSRPth, then work as RSRP1More than or equal to RSRPthWhen, or RSRP2More than or equal to RSRPthWhen, base station can determine this
UE is not cell edge UE.Then the UE can be by carrying out cell selection, cell initial access and transmission Attach Request message
Deng being established a connection between base station, to carry out data transmission.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, base station by receiving the metrical informations of UE transmissions, and
Whether according to the signal intensity of the UE carried in metrical information UE received two neighbor cells, it is cell to determine the UE
Edge UE, and then be the different transmission means transmission signals of UE configurations.Specifically, when the UE is not cell edge UE, base
The signal that the UE is transmitted using non-cooperating transmission means can be configured for the UE by standing.When the UE is cell edge UE, base station is also
Cell edge UE quality of service requirement can be determined by the value for the quality of service for judging cell edge UE, when base station is sentenced
When maximum in disconnected cell edge UE all quality of services is more than the first quality of service threshold value, base station can determine that this is small
Area edge UE is the UE of high quality-of-service requirement, then base station can be identical for cell edge UE distribution in two neighbor cells
Running time-frequency resource, for transmitting cell edge UE signals waiting for transmission, with so as to improve cell edge UE reception believe
Make an uproar ratio, it is ensured that cell edge UE high operation quality requirement；When in all quality of services that base station determines cell edge UE
Maximum be less than or equal to the first quality of service threshold value when, base station can determine that cell edge UE is low quality of service requirement
UE, then base station can be one cooperation UE of cell edge UE selections, and be cell edge UE in two neighbor cells
With cooperation UE distribute identical running time-frequency resource, with the identical running time-frequency resource simultaneous transmission UE signals waiting for transmission and
Cooperation UE signals waiting for transmission, need to be while take multiple small when solving cell edge UE transmission signal in the prior art
The running time-frequency resource in area, therefore the problem of the utilization rate and relatively low network capacity of network spectrum, so as to improve network spectrum
Utilization rate and network capacity.Using coordinated multi-point transmission method provided in an embodiment of the present invention, base station can match somebody with somebody for different UE
Different transmission means are put, so as to ensure while receiving signal to noise ratio of UE, the utilization rate and net of network are improved
Network capacity.
Embodiment three
The embodiment of the present invention provides a kind of coordinated multipoint transmission device, as shown in fig. 6, the coordinated multipoint transmission device can be with
Including：
Receiving unit 10, the metrical information for receiving UE transmissions, the metrical information includes the institute that the UE is received
State the signal intensity of UE two neighbor cells；Determining unit 11, the UE for being received according to the receiving unit 10 connects
Receive the UE two neighbor cells signal intensity, determine the UE be cell edge UE, and if the UE business
The maximum of quality is less than or equal to default first quality of service threshold value, it is determined that the cooperation UE, the cooperation UE of the UE be
In a neighbor cell in described two neighbor cells, the signal intensity of one neighbor cell of reception is more than or equal to the
One signal strength threshold, and a UE of the maximum less than or equal to default second quality of service threshold value of quality of service；Distribution
Unit 12, for being that the UE and the cooperation UE that the determining unit 11 is determined are distributed in described two neighbor cells
Identical running time-frequency resource, the running time-frequency resource is used to transmit UE signals waiting for transmission and cooperation UE letters waiting for transmission
Number.
Optionally, the determining unit 11, specifically for contrasting the two adjacent small of the UE that the UE is received respectively
The signal intensity in area and default secondary signal intensity threshold, and if the UE two neighbor cells of the UE for receiving
Signal intensity is respectively less than the secondary signal intensity threshold, it is determined that the UE is the cell edge UE.
Optionally, as shown in fig. 7, the coordinated multipoint transmission device also includes processing unit 13,
The receiving unit 10, is additionally operable to when the allocation unit 12 is the UE and cooperation UE distribution identicals
After frequency resource, the up multipoint reception letter of the UE and cooperation UE transmission is received in described two neighbor cells
Number；The processing unit 13, the up multipoint reception signal for being received to the receiving unit 10 carries out serial interference
Eliminate, the signal of the UE transmission and the signal of cooperation UE transmission are obtained respectively.
Optionally, the allocation unit 12, if the maximum for being additionally operable to the quality of service of the UE is more than first industry
Business quality threshold, then be the UE distribution identical running time-frequency resource in described two neighbor cells, treated for transmitting the UE
The signal of transmission.
Optionally, the receiving unit 10, is additionally operable to before the determining unit 11 determines the cooperation UE of the UE, connects
Receive the multiple quality of services for the UE that the UE is sent；The determining unit 11, is additionally operable to determine that the receiving unit 10 connects
Maximum in the UE received multiple quality of services, and contrast the maximum and first industry of the quality of service of the UE
Business quality threshold.
In embodiments of the present invention, the coordinated multipoint transmission device can be base station.Specifically, the base station can include room
Interior base station processing unit (English：Building Base band Unit, abbreviation：BBU) and far-end RF module (English：
Remote Radio Unit, abbreviation：RRU) etc..
The embodiment of the present invention provides a kind of coordinated multipoint transmission device, and the coordinated multipoint transmission device is sent by receiving UE
Metrical information, and the signal intensity of two neighbor cells according to the UE that is carried in the metrical information UE received, it is determined that
The UE be cell edge UE, and if the quality of service of the UE maximum be less than or equal to default first quality of service threshold value, should
Coordinated multipoint transmission device then determines the cooperation UE of the UE, and is that the UE and cooperation UE is distributed in two neighbor cells
Identical running time-frequency resource, for transmitting UE signals waiting for transmission and cooperation UE signals waiting for transmission.By the program,
During UE signals to be transmitted, because the coordinated multipoint transmission device can first determine that the UE is cell edge UE, and if the cell side
The maximum of edge UE quality of service is less than or equal to default first quality of service threshold value, then the coordinated multipoint transmission device is to be somebody's turn to do
UE determines a cooperation UE, and the coordinated multipoint transmission device is UE points of the UE and the cooperation in two neighbor cells
It is to be passed with simultaneous transmission UE signals waiting for transmission on the identical running time-frequency resource and cooperation UE with identical running time-frequency resource
Defeated signal, need to be while take the time-frequency money of multiple cells when solving a cell edge UE transmission signal in the prior art
Source, therefore the problem of the utilization rate and relatively low network capacity of network spectrum, so as to improve the utilization rate and net of network spectrum
Network capacity.
Example IV
The embodiment of the present invention provides a kind of base station, as shown in figure 8, the base station can include：Receiver 14, processor 15,
Transmitter 16, memory 17, communication bus 18.Wherein, above-mentioned receiver 14 and transmitter 16 can be only respectively in a base station
Erect vertical receiver and transmitter, or integrally disposed transceiver in a base station；Processor 15 can be in base station
In a processor individually setting up, or integration realization in other modules in a base station, the processor 15 can be
One central processing unit (Central Processing Unit, CPU), or specific integrated circuit (Application
Specific Integrated Circuit, ASIC), or be arranged to implement the one or more of the embodiment of the present invention
Integrated circuit；When the memory 17 performs coordinated multi-point transmission method provided in an embodiment of the present invention available for storage processor 15
The software program of required execution, and processor 15 perform the code of various message required during this method, so that processor 15 is logical
Cross and perform these software programs and call these codes, complete coordinated multi-point transmission method provided in an embodiment of the present invention.Receive
Connected between device 14, processor 15, transmitter 16 and memory 17 by communication bus 18 and complete mutual communication, its
In, receiver 14 and transmitter 16 can be a communication interface.Receiver 14, processor 15 and transmitter 16 can be by performing
Such as Fig. 3 to the method flow completion coordinated multi-point transmission method provided in an embodiment of the present invention as shown in any in Fig. 4.
The receiver 14, the metrical information for receiving UE transmissions, the metrical information includes what the UE was received
The signal intensity of two neighbor cells of the UE；The processor 15, for the UE received according to the receiver 14
The signal intensity of the UE received two neighbor cells, it is cell edge UE to determine the UE, and if the and UE
The maximum of quality of service is less than or equal to default first quality of service threshold value, it is determined that the cooperation UE of the UE, and in institute
It is the UE and cooperation UE distribution identical running time-frequency resources to state in two neighbor cells, and the running time-frequency resource is used to transmit
The UE signals waiting for transmission and the cooperation UE signals waiting for transmission, the cooperation UE are one in described two neighbor cells
In individual neighbor cell, the signal intensity of one neighbor cell of reception is more than or equal to the first signal strength threshold, and business
The maximum of quality is less than or equal to a UE of default second quality of service threshold value；The memory 17, it is described for storing
The code of metrical information, first signal strength threshold, the first quality of service threshold value and the second quality of service threshold value.
Optionally, the processor 15, is additionally operable to contrast two neighbor cells for the UE that the UE is received respectively
Signal intensity and default secondary signal intensity threshold, and if the signals of two neighbor cells of the UE that receive of the UE
Intensity is respectively less than the secondary signal intensity threshold, it is determined that the UE is the cell edge UE.
Optionally, the receiver 14, it is that the UE is identical with the cooperation UE distribution to be additionally operable in the processor 15
Running time-frequency resource after, received in described two neighbor cells the UE and the cooperation UE transmission up multipoint reception
Signal；The processor 15, the up multipoint reception signal for being additionally operable to receive the receiver 14 carries out serial interference
Eliminate, the signal of the UE transmission and the signal of cooperation UE transmission are obtained respectively.
Optionally, the processor 15, if the maximum for being additionally operable to the quality of service of the UE is more than first business
Quality threshold, then be the UE distribution identical running time-frequency resource in described two neighbor cells, to be passed for transmitting the UE
Defeated signal.
Optionally, the receiver 14, is additionally operable to before the processor 15 determines the cooperation UE of the UE, receives institute
State the UE of UE transmissions multiple quality of services；The processor 15, is additionally operable to determine the described of the reception of receiver 14
Maximum in UE multiple quality of services, and contrast the maximum and the first quality of service threshold of the quality of service of the UE
Value.
Optionally, the transmitter 16, principle is reported for sending metrical information to the UE and cooperation UE, and
The running time-frequency resource that the processor 15 distributes for the UE and cooperation UE is sent to the UE and cooperation UE.
The embodiment of the present invention provides a kind of base station, and the base station is believed by receiving the metrical information of UE transmissions according to measurement
The signal intensity of two neighbor cells for the UE that the UE carried in breath is received, it is cell edge UE to determine the UE, and if should
The maximum of UE quality of service is less than or equal to default first quality of service threshold value, it is determined that the cooperation UE of the UE, and at this
It is that the UE and cooperation UE distributes identical running time-frequency resource in two neighbor cells, for transmitting UE signals waiting for transmission
With cooperation UE signals waiting for transmission.By the program, in UE signals to be transmitted, because the base station can first determine that the UE is
Cell edge UE, and if cell edge UE quality of service maximum be less than or equal to default first quality of service threshold value,
Then the base station is that the UE determines a cooperation UE, and the base station is UE points of the UE and the cooperation in two neighbor cells
It is to be passed with simultaneous transmission UE signals waiting for transmission on the identical running time-frequency resource and cooperation UE with identical running time-frequency resource
Defeated signal, need to be while take the time-frequency money of multiple cells when solving a cell edge UE transmission signal in the prior art
Source, therefore the problem of the utilization rate and relatively low network capacity of network spectrum, so as to improve the utilization rate and net of network spectrum
Network capacity.
Embodiment five
The embodiment of the present invention provides a kind of multipoint cooperative transmission system, as shown in figure 9, the multipoint cooperative transmission system bag
Include：
Coordinated multipoint transmission device and at least one and the coordinated multipoint transmission device as described in above-mentioned embodiment three
The UE carried out data transmission；Or base station as described in above-mentioned example IV and at least one carry out data transmission with the base station
UE.
In a kind of multipoint cooperative transmission system provided in an embodiment of the present invention, base station sends metrical information to UE and reports original
Then, UE reports principle to send metrical information to base station according to the metrical information, and the metrical information includes the UE of UE receptions
Two neighbor cells signal intensity.Base station is by receiving the metrical informations of UE transmissions, and according to carrying in metrical information
The signal intensity of two neighbor cells for the UE that the UE is received, it is cell edge UE to determine the UE.And if the business matter of the UE
The maximum of amount is less than or equal to default first quality of service threshold value, then base station determines the cooperation UE of the UE, and in two phases
It is that the UE and cooperation UE distributes identical running time-frequency resource, the time-frequency that the UE and cooperation UE are distributed by base station in adjacent cell
Resource transmission UE signals waiting for transmission and cooperation UE signals waiting for transmission.So as to which base station connects in two neighbor cells
Receive after the up multipoint reception signal that cell edge UE and cooperation UE is transmitted, base station is entered to the up multipoint reception signal
Row serial interference elimination, so that the signal that the signal and cooperation UE that obtain cell edge UE transmission are transmitted.
Multipoint cooperative transmission system provided in an embodiment of the present invention, in UE signals to be transmitted, because base station can be first true
The fixed UE is cell edge UE, and if the maximum of cell edge UE quality of service is less than or equal to default first business matter
Threshold value is measured, then base station is that the UE determines a cooperation UE, and base station is the UE and the cooperation in two neighbor cells
UE distributes identical running time-frequency resource, with simultaneous transmission UE signals waiting for transmission on the identical running time-frequency resource and cooperation UE
Signal waiting for transmission, need to be while take the time-frequency of multiple cells when solving cell edge UE transmission signal in the prior art
Resource, the therefore the problem of utilization rate and relatively low network capacity of network spectrum, so as to improve network spectrum utilization rate and
Network capacity.
It is apparent to those skilled in the art that, for convenience and simplicity of description, only with above-mentioned each function
The division progress of module is for example, in practical application, as needed can distribute above-mentioned functions by different function moulds
Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of work(described above
Energy.The specific work process of the system, apparatus, and unit of foregoing description, may be referred to corresponding in preceding method embodiment
Journey, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the module or
The division of unit, only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units
Or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, institute
Display or the coupling each other discussed or direct-coupling or communication connection can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially
The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer
Described in equipment (can be personal computer, server, or network equipment etc.) or computing device each embodiment of the invention
The all or part of step of method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (English full name：
Read-Only Memory, english abbreviation：ROM), random access memory (English full name：Random Access Memory,
English abbreviation：RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (11)
1. a kind of coordinated multi-point transmission method, it is characterised in that including：
The metrical information that user equipment (UE) is sent is received, the metrical information includes two phases for the UE that the UE is received
The signal intensity of adjacent cell；
According to the signal intensity of the UE UE received two neighbor cells, it is cell edge UE to determine the UE；
If the maximum of the quality of service of the UE is less than or equal to default first quality of service threshold value, it is determined that the association of the UE
Make UE, during the cooperation UE is a neighbor cell in described two neighbor cells, one neighbor cell of reception
Signal intensity is more than or equal to the first signal strength threshold, and the maximum of quality of service is less than or equal to default second quality of service
One UE of threshold value；
It is the UE and cooperation UE distribution identical running time-frequency resources in described two neighbor cells, it is described for transmitting
UE signals waiting for transmission and the cooperation UE signals waiting for transmission；
Wherein, the signal intensity of two neighbor cells according to the UE UE received, it is cell to determine the UE
Edge UE, including：It is strong according to the signal intensity and default secondary signal of the UE UE received two neighbor cells
Threshold value is spent, it is cell edge UE to determine the UE.
2. coordinated multi-point transmission method according to claim 1, it is characterised in that described according to being received the UE
The signal intensity of UE two neighbor cells and default secondary signal intensity threshold, it is cell edge UE, bag to determine the UE
Include：
The signal intensity and default secondary signal intensity threshold of two neighbor cells for the UE that the UE is received are contrasted respectively
Value；
If the signal intensity of two neighbor cells for the UE that the UE is received, which is respectively less than, is equal to the secondary signal intensity threshold
Value, it is determined that the UE is the cell edge UE.
3. coordinated multi-point transmission method according to claim 1 or 2, it is characterised in that described is the UE and the association
Make after UE distribution identical running time-frequency resources, methods described also includes：
The up multipoint reception signal of the UE and cooperation UE transmission is received in described two neighbor cells；
Serial interference elimination is carried out to the up multipoint reception signal, the signal of the UE transmission and the cooperation are obtained respectively
The signal of UE transmission.
4. the coordinated multi-point transmission method according to any one of claim 1 or 2, it is characterised in that methods described also includes：
If the maximum of the quality of service of the UE is more than the first quality of service threshold value, in described two neighbor cells
Identical running time-frequency resource is distributed for the UE, for transmitting UE signals waiting for transmission.
5. the coordinated multi-point transmission method according to any one of claim 1 or 2, it is characterised in that the determination UE
Cooperation UE before, methods described also includes：
Receive the multiple quality of services for the UE that the UE is sent；
Determine the maximum in multiple quality of services of the UE；
Contrast the maximum and the first quality of service threshold value of the quality of service of the UE.
6. a kind of coordinated multipoint transmission device, it is characterised in that including：
Receiving unit, the metrical information for receiving user equipment (UE) transmission, the metrical information includes what the UE was received
The signal intensity of two neighbor cells of the UE；
Determining unit, the signal of two neighbor cells for the UE that the UE for being received according to the receiving unit is received
Intensity, determine the UE be cell edge UE, and if the UE quality of service maximum be less than or equal to default first
Quality of service threshold value, it is determined that the cooperation UE, the cooperation UE of the UE is one adjacent small in described two neighbor cells
Qu Zhong, the signal intensity of one neighbor cell of reception is more than or equal to the first signal strength threshold, and quality of service is most
A UE of the big value less than or equal to default second quality of service threshold value；
Allocation unit, the UE and the cooperation UE in described two neighbor cells being the determining unit determination
Identical running time-frequency resource is distributed, the running time-frequency resource is used to transmit UE signals waiting for transmission and the cooperation UE is waiting for transmission
Signal；
Wherein, the determining unit, specifically for two of the UE received according to the receiving unit the UE received
The signal intensity of neighbor cell and default secondary signal intensity threshold, it is cell edge UE to determine the UE.
7. coordinated multipoint transmission device according to claim 6, it is characterised in that
The determining unit, specifically for contrast respectively the UE that the UE is received two neighbor cells signal intensity with
Default secondary signal intensity threshold, and if the signal intensities of two neighbor cells of the UE that receive of the UE be respectively less than
Equal to the secondary signal intensity threshold, it is determined that the UE is the cell edge UE.
8. the coordinated multipoint transmission device according to claim 6 or 7, it is characterised in that the coordinated multipoint transmission device
Also include processing unit,
The receiving unit, be additionally operable to the allocation unit be the UE and cooperation UE distribution identical running time-frequency resource it
Afterwards, the up multipoint reception signal of the UE and cooperation UE transmission is received in described two neighbor cells；
The processing unit, the up multipoint reception signal for being received to the receiving unit carries out serial interference and disappeared
Remove, the signal of the UE transmission and the signal of cooperation UE transmission are obtained respectively.
9. the coordinated multipoint transmission device according to any one of claim 6 or 7, it is characterised in that
The allocation unit, if the maximum for being additionally operable to the quality of service of the UE is more than the first quality of service threshold value,
It is the UE distribution identical running time-frequency resource in described two neighbor cells, for transmitting UE signals waiting for transmission.
10. the coordinated multipoint transmission device according to any one of claim 6 or 7, it is characterised in that
The receiving unit, is additionally operable to before the determining unit determines the cooperation UE of the UE, receives what the UE was sent
Multiple quality of services of the UE；
The determining unit, is additionally operable to determine the maximum in the multiple quality of services for the UE that the receiving unit is received,
And contrast the maximum and the first quality of service threshold value of the quality of service of the UE.
11. a kind of multipoint cooperative transmission system, it is characterised in that including：
Coordinated multipoint transmission device as described in claim any one of 6-10 and at least one filled with the coordinated multipoint transmission
Put the user equipment (UE) carried out data transmission.
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| CN110662235B (en) * | 2019-09-29 | 2021-04-27 | 京信通信系统（中国）有限公司 | Data processing method, host unit, base station system, and storage medium |
| CN110572847B (en) * | 2019-09-29 | 2021-05-28 | 京信通信系统（中国）有限公司 | Data transmission method, system, computer device and storage medium |
| WO2023241172A1 (en) * | 2022-06-15 | 2023-12-21 | Huawei Technologies Co., Ltd. | Systems and methods for ue cooperative mimo |
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| CN103703855A (en) * | 2013-09-02 | 2014-04-02 | 华为技术有限公司 | Uplink collaborative transmitting method and apparatus |
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| CN101997583A (en) * | 2009-08-21 | 2011-03-30 | 索尼株式会社 | Method and device for pairing uplink multi-user multi-input multi-output (MIMO) users supporting cooperation multi-point transmission |
| CN102118754A (en) * | 2011-03-29 | 2011-07-06 | 西安交通大学 | Partitioning method of dynamic cooperation sets in CoMP technology |
| CN102761353A (en) * | 2011-04-27 | 2012-10-31 | 中兴通讯股份有限公司 | Selection method and system of cooperative nodes and paired users |
| CN103703855A (en) * | 2013-09-02 | 2014-04-02 | 华为技术有限公司 | Uplink collaborative transmitting method and apparatus |
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