CN104168595A - Multipoint cooperative transmission method, device and system - Google Patents
Multipoint cooperative transmission method, device and system Download PDFInfo
- Publication number
- CN104168595A CN104168595A CN201410427829.XA CN201410427829A CN104168595A CN 104168595 A CN104168595 A CN 104168595A CN 201410427829 A CN201410427829 A CN 201410427829A CN 104168595 A CN104168595 A CN 104168595A
- Authority
- CN
- China
- Prior art keywords
- signal
- quality
- transmission
- cooperation
- service
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The embodiment of the invention provides a multipoint cooperative transmission method, device and system, and relates to the technical field of communications. The multipoint cooperative transmission method, device and system solve the problems that the utilization rate of network spectrums is low and the network capacity is low. The method comprises the steps that measuring information sent by UE is received; the UE is determined to be cell edge UE according to the signal strengths, carried in the measuring information and received by the UE, of two adjacent cells of the UE; if the maximum value of the service quality of the UE is less than or equal to a preset first service quality threshold, cooperative UE of the UE is determined, wherein the cooperative UE is UE located in one of the two adjacent cells, the received signal strength of the corresponding adjacent cell is greater than or equal to a first signal strength threshold and the maximum value of the service quality is less than or equal to a preset second service quality threshold; identical time-frequency resources used for transmitting signals to be transmitted by the UE and signals to be transmitted by the cooperative UE are distributed to the UE and the cooperative UE in the two adjacent cells.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of coordinated multi-point transmission method, Apparatus and system.
Background technology
In communication system, co-channel interference is the key factor that affects LTE (Long Term Evolution, Long Term Evolution) network performance.In order to solve problem of co-channel interference, 3GPP (The 3rd Generation Partnership Project, third generation partner program) LTE-A (LTE-Advanced, the evolution version of LTE) a kind of CoMP (Coordinated Multipoint based on minizone cooperation proposed, collaborative multicast communication) technology, this CoMP technology is by suppressing or utilize the interference of minizone, can promote the subscriber equipment (English: user equipment, abbreviation: received signal to noise ratio UE) that is positioned at cell edge.Wherein, CoMP technology is divided into up CoMP associating reception technique and downstream signal Combined Treatment technology.
In prior art, the major way of realizing up CoMP associating reception technique is: a Serving cell and multiple cooperation cell receive the UE that is positioned at cell edge simultaneously, it is the signal of cell edge UE transmission, then the signal that multiple cooperation cell are received respectively again sends to this Serving cell, the multiple signals that these different districts received by this Serving cell merge reception, thereby can improve the up signal to noise ratio of accepting of this cell edge UE.Wherein, this Serving cell and multiple cooperation cell can be the different districts of a base station or the different districts of different base station.
But, although above-mentioned up CoMP associating reception technique has ensured the uplink receiving signal to noise ratio of cell edge UE, but because a cell edge UE need to take the uplink running time-frequency resource (comprising time-domain resource and frequency domain resource) of two or more communities, therefore the utilance of network spectrum and network capacity are lower.
Summary of the invention
Embodiments of the invention provide a kind of coordinated multi-point transmission method, Apparatus and system, have solved utilance and the lower problem of network capacity of network spectrum.
For achieving the above object, the present invention adopts following technical scheme:
First aspect, the invention provides a kind of coordinated multi-point transmission method, comprising:
Receive the metrical information that user equipment (UE) sends, described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception;
The signal strength signal intensity of two neighbor cells of the described UE receiving according to described UE, determines that described UE is cell edge UE;
If the maximum of the quality of service of described UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value;
In described two neighbor cells, be described UE and described cooperation UE distributes identical running time-frequency resource, for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission.
Second aspect, the invention provides a kind of coordinated multipoint transmission device, comprising:
Receiving element, the metrical information sending for receiving user equipment (UE), described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception;
Determining unit, the signal strength signal intensity of two neighbor cells of the described UE receiving for the described UE receiving according to described receiving element, determine that described UE is cell edge UE, if and the maximum of the quality of service of described UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value,
Allocation units, distribute identical running time-frequency resource for be described determining unit definite described UE and described cooperation UE in described two neighbor cells, and described running time-frequency resource is used for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission.
The third aspect, the invention provides a kind of multipoint cooperative transmission system, comprising:
Coordinated multipoint transmission device as described in above-mentioned second aspect and at least one and as described in coordinated multipoint transmission device carry out the user equipment (UE) of transfer of data.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, Apparatus and system, the metrical information sending by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine that this UE is cell edge UE, if and the maximum of the quality of service of this UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of this UE, and in these two neighbor cells, be this UE and this cooperation UE and distribute identical running time-frequency resource, for transmitting this UE signal waiting for transmission and this cooperation UE signal waiting for transmission.By this scheme, in the time of UE signal to be transmitted, because base station can first determine that this UE is cell edge UE, if and the maximum of the quality of service of this cell edge UE is less than or equal to the first default quality of service, base station for this UE determine one cooperation UE, and base station is that this UE and this cooperation UE all distribute identical running time-frequency resource in these two neighbor cells, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Brief description of the drawings
The block diagram one of the multipoint cooperative transmission system that Fig. 1 provides for the embodiment of the present invention;
The block diagram two of the multipoint cooperative transmission system that Fig. 2 provides for the embodiment of the present invention;
The flow chart one of a kind of coordinated multi-point transmission method that Fig. 3 provides for the embodiment of the present invention;
The interaction figure one of a kind of coordinated multi-point transmission method that Fig. 4 provides for the embodiment of the present invention;
The flowchart 2 of a kind of coordinated multi-point transmission method that Fig. 5 provides for the embodiment of the present invention;
The coordinated multipoint transmission apparatus structure schematic diagram one that Fig. 6 provides for the embodiment of the present invention;
The coordinated multipoint transmission apparatus structure schematic diagram two that Fig. 7 provides for the embodiment of the present invention;
A kind of architecture of base station block diagram that Fig. 8 provides for the embodiment of the present invention;
The block diagram three of the multipoint cooperative transmission system that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the specific embodiment of the invention and embodiment, technical scheme of the present invention is done to further detailed, complete description, obviously, described embodiment is only the schematic part embodiment of the present invention, instead of whole embodiment.
In following embodiments of the invention, two neighbor cells of described cell edge UE can be two different districts of same base station, or are two different districts of different base station.If two two different districts that neighbor cell is same base station, the multipoint cooperative transmission system block diagram providing in the embodiment of the present invention as shown in Figure 1, between Liang Ge community, can pass through the high speed I/O (English: input/output of inside of base station, abbreviation: I/O) interface carries out data interaction, thereby the two paths of signals of the cell edge UE that Dui Liangge community, base station receives merges reception.If two neighbor cells are two different districts of two different base stations, the multipoint cooperative transmission system block diagram providing in the embodiment of the present invention as shown in Figure 2, between Liang Ge community, can carry out data interaction by the X2 interface between two base stations, thereby the two paths of signals of the cell edge UE being received by the Dui Liangge community, a base station in two different base stations merges reception.Wherein, merge to receive and refer to the two paths of signals of base station to this cell edge UE receiving, by adopting maximum ratio to merge (English: maximal ratio combining, abbreviation: MRC), adopt equal gain combining (English: equal gain combining, abbreviation: EGC), or adopt selection combination (English: selection combining, SC) abbreviation: the merging mode such as, obtains the process of the signal of this cell edge UE transmission.
Embodiment mono-
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, and as shown in Figure 3, the method can comprise:
S101, base station receive the metrical information that UE sends, and this metrical information comprises the signal strength signal intensity of two neighbor cells of this UE of this UE reception.
The signal strength signal intensity of two neighbor cells of this UE that S102, base station receive according to this UE, determines that this UE is cell edge UE.
If the maximum of the quality of service of this UE of S103 is less than or equal to the first default quality of service threshold value, determine the cooperation UE of this UE, this cooperation UE is in a neighbor cell in these two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value.
S104, base station are this UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, for transmitting this UE signal waiting for transmission and this cooperation UE signal waiting for transmission.
In embodiments of the present invention, UE reports principle according to the metrical information of base station configuration, sends metrical information to base station.Concrete, UE detects the signal strength signal intensity of adjacent several communities of this UE of this UE reception, and select the signal strength signal intensity of two neighbor cells that signal strength signal intensity is the strongest the signal strength signal intensity of adjacent several communities of this UE receiving from this UE, and the signal strength signal intensity of these two neighbor cells is carried in the metrical information of this UE and sends to base station.After base station receives the signal strength signal intensity of two neighbor cells of this UE of this UE reception of this UE transmission, contrast respectively the signal strength signal intensity of two neighbor cells and the size of default secondary signal intensity threshold of this UE that this UE receives, if the signal strength signal intensity of two neighbor cells of this UE that UE receives is all less than default secondary signal intensity threshold, base station can determine that this UE is cell edge UE.
Optionally, the signal strength signal intensity providing in the embodiment of the present invention can be Reference Signal Received Power (English: Reference Signal Receiving Power, abbreviation: RSRP); Also can be signal and interference and noise ratio (English: Signal to Interference and Noise Ratio, abbreviation: SINR), can also can represent for other parameter of the signal strength signal intensity of the adjacent Liang Ge community of this UE of UE reception.For example, if the signal strength signal intensity that the hypothesis embodiment of the present invention provides is RSRP, and the RSRP of the adjacent Liang Ge community of this UE of UE reception is respectively RSRP
1and RSRP
2, default secondary signal intensity threshold is RSRP
th, work as RSRP
1<RSRP
th, and RSRP
2<RSRP
thtime, base station can determine that this UE is cell edge UE.
In the embodiment of the present invention, after base station determines that this UE is cell edge UE, the quality of service requirement of all business that this UE asks need be determined according to the value of all quality of services of this UE in base station.Concrete, can preset a first quality of service threshold value, base station judges the quality of service requirement of this UE by contrasting the size of maximum in all quality of services of this UE and the first quality of service threshold value, in the time that the maximum of the quality of service of this UE is less than or equal to the first quality of service threshold value, base station can determine that this UE is the UE of low quality of service requirement.The value of this quality of service can identify by service quality rating (English: QoS Class Identifier, abbreviation: the design parameter QCI) characterizes, as packet loss, at least one in packet delay, the error rate and priority etc., can also characterize by the transmission rate of this UE institute requested service.For example, suppose to characterize with packet loss the value of the quality of service of this UE, the packet loss of the business that this UE asks is less, and the value of quality of service that characterizes the business that this UE asks is larger, and the quality of service requirement of the business that this UE asks is higher.The business of packet loss minimum in all business that this UE asks, the business of the value maximum of quality of service in all business of asking for this UE.If presetting the threshold value of the packet loss for characterizing the first quality of service threshold value is 10
-5, when the minimum value in the packet loss of all business that this UE asks is more than or equal to 10
-5time, base station can determine that the maximum of the quality of service of this UE is less than or equal to the first quality of service threshold value, base station determines that this UE is the UE of low quality of service requirement.
Again for example, suppose to characterize with transmission rate the value of the quality of service of this UE, the transmission rate of the business that this UE asks is larger, and the value of quality of service that characterizes the business that this UE asks is larger, and the quality of service requirement of the business that this UE asks is higher.The business of transmission rate maximum in all business that this UE asks, the business of the value maximum of quality of service in all business of asking for this UE.Be 3 megabit per seconds (unit symbols: Mbps) if preset the threshold value of the transmission rate for characterizing the first quality of service threshold value, in the time that the maximum in the transmission rate of all business that this UE asks is less than or equal to 3Mbps, base station can determine that the maximum of the quality of service of this UE is less than or equal to the first quality of service threshold value, and base station determines that this UE is the UE of low quality of service requirement.
In the design parameter of the QCI providing in the embodiment of the present invention, other parameters except packet loss, as packet delay, the error rate, priority etc., characterize the mode of value of the quality of service of this UE with above-mentioned two kinds of characteristic manner, do not repeat them here.Further, the value of the quality of service of this UE also can characterize by the multiple parameters in above-mentioned parameter.The value that for example characterizes the quality of service of this UE with the transmission rate of this UE institute requested service and packet loss, the threshold value of default transmission rate is 3Mbps, and the threshold value of packet loss is 10
-5to characterize respectively the first quality of service threshold value, when the minimum value in the packet loss of all business that this UE asks is more than or equal to 10
-5, and maximum in the transmission rate of this UE all business of asking is while being less than or equal to 3Mbps, and base station can determine that the maximum of the quality of service of this UE is less than or equal to the first quality of service threshold value, and base station determines that this UE is the UE of low quality of service requirement.
In the time that base station determines that this UE is the UE of low quality of service requirement, base station is required to be this UE and selects a cooperation UE, this cooperation UE can be in a neighbor cell in these two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is more than or equal to the UE of default first signal intensity threshold, and the maximum of the quality of service of this UE is less than or equal to the second default quality of service threshold value.Concrete, base station is first in a neighbor cell in these two neighbor cells, the signal strength signal intensity of neighbor cell of this of selective reception is more than or equal to all UE of first signal intensity threshold, base station in all UE, selects the maximum of quality of service to be less than or equal to the UE of the second default quality of service threshold value again.Base station can determine that this UE is in these two neighbor cells, the UE that signal quality is good and quality of service requirement is lower, and cooperation UE using this UE as this cell edge UE.Or, base station also can first select the maximum in all quality of services in a neighbor cell in these two neighbor cells to be less than or equal to all UE of the second quality of service threshold value, the maximum of base station in all quality of services is less than or equal in all UE of the second quality of service threshold value, the signal strength signal intensity of neighbor cell of this of selective reception is more than or equal to the UE of first signal intensity threshold, base station can determine that this UE is in these two neighbor cells, signal quality better and the lower UE of quality of service requirement, and is selected the cooperation UE of this UE as this cell edge UE.Wherein, the occurrence of this first signal intensity threshold and the second quality of service threshold value can arrange according to actual needs.For example, suppose that first signal intensity threshold is SINR
th, SINR is set
thbeing 18 decibels (unit symbols: db), is 10 for the threshold value of the packet loss that characterizes the second quality of service threshold value
-6, the SINR of this neighbor cell that this UE receives is more than or equal to 18db, and base station can determine that this UE is the good UE of signal quality, and the minimum value in the packet loss of all business of this UE is more than or equal to 10
-6, base station can determine that this UE is the UE that quality of service requirement is lower, the cooperation UE of this UE as this cell edge UE can be selected in base station so.Further, multiple if the cooperation UE that base station is determined has, the cooperation UE of a cooperation UE as cell edge UE can be selected at random in base station from the plurality of cooperation UE.Wherein, this second quality of service threshold value is by the characteristic manner of design parameter, identical with the mode that characterizes the first quality of service threshold value by design parameter, does not again repeat them here.And in embodiments of the present invention, signal quality is signal strength signal intensity.
Base station is being this UE, and cell edge UE selects after a cooperation UE, and for this cell edge UE and this cooperation UE distribute identical running time-frequency resource, for transmitting this cell edge UE signal waiting for transmission and this cooperation UE signal waiting for transmission.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, the metrical information sending by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine that this UE is cell edge UE, if and the maximum of the quality of service of this UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of this UE, and in these two neighbor cells, be this UE and this cooperation UE and distribute identical running time-frequency resource, for transmitting this UE signal waiting for transmission and this cooperation UE signal waiting for transmission.By this scheme, in the time of UE signal to be transmitted, because base station can first determine that this UE is cell edge UE, if and the maximum of the quality of service of this cell edge UE is less than or equal to the first default quality of service threshold value, base station for this UE determine one cooperation UE, and base station is this UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Embodiment bis-
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, and as shown in Figure 4, the method can comprise:
S201, UE send metrical information to base station, and this metrical information comprises the signal strength signal intensity of two neighbor cells of this UE of this UE reception.
S202, base station contrast respectively the signal strength signal intensity of two neighbor cells of this UE that this UE receives and default secondary signal intensity threshold.
If the signal strength signal intensity of two neighbor cells of this UE that this UE of S203 receives is all less than or equal to this secondary signal intensity threshold, base station determines that this UE is cell edge UE.
Maximum in all quality of services of S204, base station contrast cell edge UE and the first default quality of service threshold value.
If the maximum in all quality of services of this cell edge of S205 UE is less than or equal to this first quality of service threshold value, the cooperation UE of this cell edge UE is determined in base station, this cooperation UE is in a neighbor cell in these two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value.
S206, base station are this cell edge UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, for transmitting this cell edge UE signal waiting for transmission and this cooperation UE signal waiting for transmission.
S207, this cell edge UE send this cell edge UE signal waiting for transmission to base station, and this cooperation UE sends this cooperation UE signal waiting for transmission to base station.
S208, base station all receive the up multipoint reception signal of this cell edge UE and this cooperation UE in these two neighbor cells, and this ascending multi-point collaboration signal is carried out to serial interference elimination, obtain respectively the signal of this cell edge UE transmission and the signal of this cooperation UE transmission.
In embodiments of the present invention, UE detects the signal strength signal intensity of several neighbor cells of this UE of this UE reception, and the signal strength signal intensity of several neighbor cells of this UE receiving from this UE, select the signal strength signal intensity of two neighbor cells that signal strength signal intensity is the strongest, be carried in the metrical information of this UE, UE, according to the principle that reports of the measurement report of base station configuration, sends metrical information to base station.Base station contrasts respectively the signal strength signal intensity of two neighbor cells of this UE that this UE receives and default secondary signal intensity threshold, if base station judges the signal strength signal intensity of two neighbor cells of this UE that this UE receives and be all less than or equal to this secondary signal intensity threshold, base station can determine that this UE is cell edge UE; Have at least a signal strength signal intensity to be greater than this secondary signal intensity threshold if base station judges in the signal strength signal intensity of two neighbor cells of this UE that this UE receives, base station judges that this UE is not cell edge UE.For example, the metrical information that UE sends to base station comprises the RSRP of the adjacent Liang Ge community of this UE of this UE reception, is respectively RSRP
1and RSRP
2, and default secondary signal intensity threshold is RSRP
thif, RSRP so
1and RSRP
2all be less than or equal to RSRP
th, base station can determine that this UE is cell edge UE; If RSRP
1and RSRP
2in have at least one to be greater than RSRP
th, base station can determine that this UE is not cell edge UE.Wherein, this signal strength signal intensity can also can represent for other parameter of the signal strength signal intensity of the adjacent Liang Ge community of this UE of UE reception, the SINR of the adjacent Liang Ge community of this UE that for example this UE receives etc.
In the embodiment of the present invention, after base station determines that this UE is cell edge UE, the quality of service requirement of all business that this cell edge UE asks need be determined according to the value of all quality of services of this cell edge UE in base station.Concrete, by judging whether maximum in all quality of services of this cell edge UE is less than or equal to the first quality of service threshold value and determines whether this cell edge UE is the UE of low quality of service requirement.If base station is determined the maximum in all quality of services of this UE and is less than or equal to the first quality of service threshold value, the UE that this cell edge UE is low quality of service requirement is determined in base station, thereby can being this cell edge UE, base station selects a cooperation UE, this cooperation UE is in a neighbor cell in these two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value.
Wherein, base station is the selection course that this cell edge UE selects cooperation cell, specifically can, referring to selection course that S103 describes in embodiment mono-, not repeat them here.
When base station is that this cell edge UE selects after a cooperation UE, base station is this cell edge UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, be used for transmitting this cell edge UE signal waiting for transmission and this cooperation UE signal waiting for transmission, thereby can make this cell edge UE and this cooperation UE on a running time-frequency resource, transmit signal waiting for transmission at the same time, and then can improve the utilance of network spectrum, improve network capacity.When base station all receives after the up multipoint reception signal of this cell edge UE and this cooperation UE transmission in these two neighbor cells, serial interference elimination operation can be carried out to the up multipoint reception signal of this cell edge UE and this cooperation UE in base station, to obtain respectively the signal of this cell edge UE transmission and the signal of this cooperation UE transmission.
Concrete, two neighbor cells supposing above-mentioned cell edge UE are respectively No. 1 community and No. 2 communities, and the Serving cell of this cooperation UE is No. 2 communities, the Serving cell of this cell edge UE is No. 1 community, and base station is that this cell edge UE and this cooperation UE distribute identical running time-frequency resource in No. 1 community and No. 2 communities, and this cell edge UE sends this cell edge UE signal waiting for transmission by the running time-frequency resource of base station assigns to base station, and this cooperation UE sends this cooperation UE signal waiting for transmission by the running time-frequency resource of base station assigns to base station, thereby the up multipoint reception signal of this cell edge UE that base station receives in No. 1 community and No. 2 communities and this cooperation UE transmission is:
y
1＝h
11x
1+h
12x
2+n
1
y
2＝h
21x
1+h
22x
2+n
2
Wherein, x
1the signal of this cell edge UE transmission, x
2the signal of this cooperation UE transmission, y
1that base station is from this cell edge UE of No. 1 community reception and the up multipoint reception signal of this cooperation UE transmission, y
2that base station is from this cell edge UE of No. 2 community receptions and the up multipoint reception signal of this cooperation UE transmission, n
i, i=1, the reception noise of the 2nd, i community, h
ij, i=1,2; J=1, the 2nd, i community is to the frequency domain channel state information of j UE.Base station is by the up multipoint reception signal y receiving
1and y
2carry out serial interference elimination, can obtain respectively the signal x of this cell edge UE transmission
1signal x with this cooperation UE transmission
2.Concrete, base station obtains x
1and x
2process as follows:
(1) base station detects the signal y receiving
2the signal x that middle signal strength signal intensity is the strongest
2, by y
2in do not comprise x
2remainder fall as noise cancellation, decoding obtains the signal x of this cooperation UE transmission
2.
(2) the signal x of the cooperation UE transmission that base station goes out according to decoding
2, by the signal x of cooperation UE transmission
2at signal y
2comprise x
2part carry out disturbance reconstruction counteracting, obtain signal y
2at the signal x that eliminates cooperation UE transmission
2rear remaining signal
this signal
for the equivalence of cell edge UE receives signal.
Further, if the different districts that No. 1 community and No. 2 communities are same base station, as shown in Figure 1, No. 2 communities are by the high-speed i/o interface in base station, by the signal x of cooperation UE transmission so
2receive signal with the equivalence of cell edge UE
be transferred to community No. 1.If the different districts that No. 1 community and No. 2 communities are different base station as shown in Figure 2, is that No. 2 base stations are by the X2 interface between No. 2 base stations and No. 1 base station, by the signal x of cooperation UE transmission so
2receive signal with the equivalence of cell edge UE
be transferred to base station No. 1.Wherein, community provides service for No. 2 for No. 2 base stations, and community provides service for No. 1 for No. 1 base station.
(3) base station receives the signal x of cooperation UE transmission
2receive signal with the equivalence of cell edge UE
after, by the signal x of cooperation UE transmission
2the signal y receiving No. 1 community
1comprise x
2part carry out disturbance reconstruction counteracting, obtain signal y
1at the signal x that eliminates cooperation UE transmission
2rear remaining signal
this signal
also the equivalence that is cell edge UE receives signal.Wherein
i=1,2 is y to received signal
1and y
2in the signal x of cooperation UE transmission
2carry out the noise of equal value after disturbance reconstruction counteracting.
(4) equivalence of cell edge UE is received signal by base station
with
merge reception, obtain the signal x of this cell edge UE transmission
1.
Further, in above-mentioned steps (4), base station receives signal to the equivalence of cell edge UE
with
merge the mode receiving and can adopt MRC, also can adopt EGC, or adopt SC etc.Base station is by receiving signal to the equivalence of cell edge UE
with
merging reception & disposal, can reach the object of the signal to noise ratio that improves this cell edge UE.
In embodiments of the present invention, before serial interference elimination is carried out to the up multipoint reception signal of this cell edge UE receiving and this cooperation UE in base station, because base station selected this cooperation UE can be in these two neighbor cells, the signal strength signal intensity of a neighbor cell in these two neighbor cells that receive is greater than default first signal intensity threshold, and the maximum of quality of service is less than or equal to the UE of the second default quality of service threshold value, this cooperation UE is in two neighbor cells, and signal quality better and the lower UE of quality of service requirement.
Further, in a neighbor cell in base station selected two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is greater than the UE of a default signal strength threshold as the cooperation UE of cell edge UE, in order to ensure that base station receives after the up multipoint reception signal of cell edge UE and cooperation UE, when serial interference elimination is carried out to this up multipoint reception signal in base station, the error rate of the error rate of the signal of this cell edge UE transmission solving and the signal of this cooperation UE transmission is less, thereby can ensure that the accurate decoding in base station goes out the signal of this cell edge UE transmission and the signal of this cooperation UE transmission.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 the cooperation UE of cell edge UE, in order to ensure that cell edge UE and cooperation UE are when the cooperation transmission data, can not affect the transfer of data of this cooperation UE, thereby in the case of ensureing the transfer of data of this cooperation UE, complete the transfer of data of cell edge UE.
Further, in the serial interference elimination operation that completes for the first time the signal of this cell edge UE transmission and the signal of this cooperation UE transmission, after being decoded operation, also may there is certain error rate in the signal of the signal of this cell edge UE transmission and this cooperation UE transmission, therefore after decoded operation completes, can also be by the mode of iterative decoding between No. 1 community and No. 2 communities, further improve the accuracy that receives the signal of this cell edge UE transmission and the signal of this cooperation UE transmission.
Further, in the coordinated multi-point transmission method providing in the embodiment of the present invention, select in a neighbor cell in these two neighbor cells, the signal strength signal intensity of this neighbor cell receiving is more than or equal to a UE of first signal intensity threshold, can improve the accuracy that base station receives the signal of this cell edge UE transmission, ensure the signal to noise ratio of the signal of this cell edge UE transmission, simultaneously again because base station is this cell edge UE in these two neighbor cells and this cooperation UE has distributed identical running time-frequency resource, be used for transmitting this cell edge UE signal waiting for transmission and this cooperation U signal waiting for transmission, therefore make this cell edge UE and this cooperation UE can be to base-station transmission signal on same running time-frequency resource, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Further, as shown in Figure 5, the coordinated multi-point transmission method that the embodiment of the present invention provides, after above-mentioned S204, can also comprise:
If the maximum in all quality of services of this cell edge of S209 UE is greater than this first quality of service threshold value, identical running time-frequency resource is distributed for this cell edge UE in base station in these two neighbor cells, for transmitting this cell edge UE signal waiting for transmission.
S210, this cell edge UE send this cell edge UE signal waiting for transmission to base station.
S211, base station receive the signal of this cell edge UE transmission.
In embodiments of the present invention, after base station determines that this UE is cell edge UE, by contrasting maximum and the first default quality of service threshold value in all quality of services of this cell edge UE, if the maximum in all quality of services of definite this cell edge UE is greater than the first quality of service threshold value, base station can determine that this cell edge UE is the UE of high quality-of-service requirement, thereby identical running time-frequency resource can be distributed for this cell edge UE in base station in these two neighbor cells, for transmitting this cell edge UE signal waiting for transmission, to meet the high quality-of-service requirement of this cell edge UE.
Concrete, suppose that these two neighbor cells are respectively No. 1 community and No. 2 communities.Base station is that this cell edge UE distributes identical running time-frequency resource in No. 1 community and No. 2 communities, this cell edge UE sends this cell edge UE signal waiting for transmission by the running time-frequency resource of base station assigns to base station, the signal of this cell edge UE transmission that base station receives in No. 1 community and No. 2 communities is:
y
1＝h
1x+n
1
y
2＝h
2x+n
2
Wherein h
i, i=1, the 2nd, i community is to the frequency domain channel state information of this cell edge UE, and x is the signal of this cell edge UE transmission, n
i, i=1, the reception noise of the 2nd, i community, y
1the signal of base station from this cell edge UE transmission of No. 1 community reception, y
2the signal of base station from this cell edge UE transmission of No. 2 community receptions.If the different districts that No. 1 community and No. 2 communities are same base station, as shown in Figure 1, No. 2 communities are by the High Speed I/O interface in base station, by the signal y receiving so
2be transferred to community No. 1, then by base station, the signal of this cell edge of the two-way receiving UE transmission merged to reception, obtain the signal of this cell edge UE transmission.If the different districts that No. 1 community and No. 2 communities are different base station, as shown in Figure 2, No. 2 base stations are by the X2 interface between No. 2 base stations and No. 1 base station so, the signal y of this cell edge UE transmission that No. 2 communities are received
2be transferred to base station No. 1.By No. 1 base station, the two paths of signals of this cell edge UE receiving is done to merge receiving, obtain the signal of this cell edge UE transmission.Wherein the merging mode of the two paths of signals of base station to the cell edge UE receiving can adopt MRC, also can adopt EGC, or adopts SC etc.Base station is by the reception signal y to cell edge UE
1and y
2merging receive, can reach the object of the signal to noise ratio that improves this cell edge UE.
Further, in the coordinated multi-point transmission method that the embodiment of the present invention provides, after above-mentioned S201, can also comprise:
If the signal strength signal intensity of two neighbor cells of this UE that this UE of S212 receives has at least one to be greater than this secondary signal intensity threshold, base station determines that this UE is not cell edge UE.
Between S213, this UE and base station, establish a connection, carry out transfer of data.
In embodiments of the present invention, have at least one to be greater than this secondary signal intensity threshold if the signal strength signal intensity in the metrical information that this UE sends is determined in base station, can determine that this UE is not cell edge UE.For example, the metrical information that UE reports to base station comprises the RSRP of the adjacent Liang Ge community of this UE of UE reception, is respectively RSRP
1and RSRP
2, and default signal strength threshold is RSRP
th, work as so RSRP
1be more than or equal to RSRP
thtime, or RSRP
2be more than or equal to RSRP
thtime, base station can determine that this UE is not cell edge UE.This UE can be by carrying out community selection, establishes a connection, to carry out transfer of data between cell initial access and transmission Attach Request message etc. and base station.
The embodiment of the present invention provides a kind of coordinated multi-point transmission method, the metrical information that base station sends by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine whether this UE is cell edge UE, and then configure different transmission means signal transmissions for this UE.Concrete, in the time that this UE is not cell edge UE, base station can adopt non-cooperation transmission mode to transmit the signal of this UE for this UE configuration.In the time that this UE is cell edge UE, base station can also be by judging that the value of quality of service of this cell edge UE determines the quality of service requirement of this cell edge UE, in the time that base station judges that maximum in all quality of services of this cell edge UE is greater than the first quality of service threshold value, base station can determine that this cell edge UE is the UE of high quality-of-service requirement, identical running time-frequency resource can be distributed for this cell edge UE in base station in these two neighbor cells, for transmitting this cell edge UE signal waiting for transmission, thereby to improve the received signal to noise ratio of this cell edge UE, ensure the high operation quality requirement of this cell edge UE, in the time that base station determines that maximum in all quality of services of this cell edge UE is less than or equal to the first quality of service threshold value, base station can determine that this cell edge UE is the UE of low quality of service requirement, base station can be this cell edge UE and selects a cooperation UE, and in these two neighbor cells, be this cell edge UE and this cooperation UE and distribute identical running time-frequency resource, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.The coordinated multi-point transmission method that provides of the embodiment of the present invention is provided, and base station can configure different transmission meanss for different UE, thus can ensure UE accept signal to noise ratio in, utilance and the network capacity of raising network.
Embodiment tri-
The embodiment of the present invention provides a kind of coordinated multipoint transmission device, and as shown in Figure 6, this coordinated multipoint transmission device can comprise:
Receiving element 10, the metrical information sending for receiving UE, described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception, determining unit 11, the signal strength signal intensity of two neighbor cells of the described UE receiving for the described UE receiving according to described receiving element 10, determine that described UE is cell edge UE, if and the maximum of the quality of service of described UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value, allocation units 12, distribute identical running time-frequency resource for be described determining unit 11 definite described UE and described cooperation UE in described two neighbor cells, described running time-frequency resource is used for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission.
Optionally, described determining unit 11, specifically for contrasting respectively the signal strength signal intensity of two neighbor cells of the described UE that described UE receives and default secondary signal intensity threshold, if and the signal strength signal intensity of two neighbor cells of the described UE that receives of described UE is all less than described secondary signal intensity threshold, determine that described UE is described cell edge UE.
Optionally, as shown in Figure 7, described coordinated multipoint transmission device also comprises processing unit 13,
Described receiving element 10 also, for being after described UE and described cooperation UE distribute identical running time-frequency resource at described allocation units 12, all receives the up multipoint reception signal of described UE and described cooperation UE transmission in described two neighbor cells; Described processing unit 13, carries out serial interference elimination for the described up multipoint reception signal that described receiving element 10 is received, and obtains respectively the signal of described UE transmission and the signal of described cooperation UE transmission.
Optionally, described allocation units 12 if be also greater than described the first quality of service threshold value for the maximum of the quality of service of described UE, distribute identical running time-frequency resource for described UE, for transmitting described UE signal waiting for transmission in described two neighbor cells.
Optionally, described receiving element 10, also, for before determining the cooperation UE of described UE in described determining unit 11, receives multiple quality of services of the described UE of described UE transmission; Described determining unit 11, also for determining the maximum of multiple quality of services of the described UE that receives of described receiving element 10, and contrasts maximum and the described first quality of service threshold value of the quality of service of described UE.
In embodiments of the present invention, this coordinated multipoint transmission device can be base station.Concrete, this base station can comprise indoor base station processing unit (English: Building Base band Unit, abbreviation: BBU) and far-end RF module (English: Remote Radio Unit, abridge: RRU) etc.
The embodiment of the present invention provides a kind of coordinated multipoint transmission device, the metrical information that this coordinated multipoint transmission device sends by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine that this UE is cell edge UE, if and the maximum of the quality of service of this UE is less than or equal to the first default quality of service threshold value, this coordinated multipoint transmission device is determined the cooperation UE of this UE, and in these two neighbor cells, be this UE and this cooperation UE and distribute identical running time-frequency resource, for transmitting this UE signal waiting for transmission and this cooperation UE signal waiting for transmission.By this scheme, in the time of UE signal to be transmitted, because this coordinated multipoint transmission device can first determine that this UE is cell edge UE, if and the maximum of the quality of service of this cell edge UE is less than or equal to the first default quality of service threshold value, this coordinated multipoint transmission device for this UE determine one cooperation UE, and this coordinated multipoint transmission device is this UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Embodiment tetra-
The embodiment of the present invention provides a kind of base station, and as shown in Figure 8, this base station can comprise: receiver 14, processor 15, transmitter 16, memory 17, communication bus 18.Wherein, above-mentioned receiver 14 and transmitter 16 can, for receiver and the transmitter of independently setting up respectively in base station, can be also the transceiver of integrated setting in base station; Processor 15 can be a processor of setting up separately in base station, also can be integration realization in other modules in base station, this processor 15 can be a central processing unit (Central Processing Unit, CPU), or specific integrated circuit (Application Specific Integrated Circuit,, or be configured to implement one or more integrated circuits of the embodiment of the present invention ASIC); The software program of required execution while carrying out the coordinated multi-point transmission method that the embodiment of the present invention provides that this memory 17 can be used for storage of processor 15, and the code of processor 15 required various message while carrying out the method, thereby processor 15, by carrying out these software programs and calling these codes, completes the coordinated multi-point transmission method that the embodiment of the present invention provides.Between receiver 14, processor 15, transmitter 16 and memory 17, connect by communication bus 18 and complete mutual communication, wherein, receiver 14 and transmitter 16 can be a communication interface.Receiver 14, processor 15 and transmitter 16 can complete to the method flow as shown in arbitrary in Fig. 4 the coordinated multi-point transmission method that the embodiment of the present invention provides as Fig. 3 by carrying out.
Described receiver 14, the metrical information sending for receiving UE, described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception, described processor 15, the signal strength signal intensity of two neighbor cells of the described UE receiving for the described UE receiving according to described receiver 14, determine that described UE is cell edge UE, if and and the maximum of the quality of service of described UE be less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, and in described two neighbor cells, be described UE and described cooperation UE distributes identical running time-frequency resource, described running time-frequency resource is used for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value, described memory 17, for storing the code of described metrical information, described first signal intensity threshold, the first quality of service threshold value and the second quality of service threshold value.
Optionally, described processor 15, also for contrasting respectively the signal strength signal intensity of two neighbor cells of the described UE that described UE receives and default secondary signal intensity threshold, if and the signal strength signal intensity of two neighbor cells of the described UE that receives of described UE is all less than described secondary signal intensity threshold, determine that described UE is described cell edge UE.
Optionally, described receiver 14 also, for being after described UE and described cooperation UE distribute identical running time-frequency resource at described processor 15, all receives the up multipoint reception signal of described UE and described cooperation UE transmission in described two neighbor cells; Described processor 15, also carries out serial interference elimination for the described up multipoint reception signal that described receiver 14 is received, and obtains respectively the signal of described UE transmission and the signal of described cooperation UE transmission.
Optionally, described processor 15 if be also greater than described the first quality of service threshold value for the maximum of the quality of service of described UE, distributes identical running time-frequency resource for described UE, for transmitting described UE signal waiting for transmission in described two neighbor cells.
Optionally, described receiver 14, also, for before determining the cooperation UE of described UE at described processor 15, receives multiple quality of services of the described UE of described UE transmission; Described processor 15, also for determining the maximum of multiple quality of services of the described UE that receives of described receiver 14, and contrasts maximum and the described first quality of service threshold value of the quality of service of described UE.
Optionally, described transmitter 16, for reporting principle to described UE and described cooperation UE transmission metrical information, and sends the running time-frequency resource of described processor 15 for described UE and described cooperation UE distribution to described UE and described cooperation UE.
The embodiment of the present invention provides a kind of base station, the metrical information that this base station sends by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine that this UE is cell edge UE, if and the maximum of the quality of service of this UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of this UE, and in these two neighbor cells, be this UE and this cooperation UE and distribute identical running time-frequency resource, for transmitting this UE signal waiting for transmission and this cooperation UE signal waiting for transmission.By this scheme, in the time of UE signal to be transmitted, because this base station can first determine that this UE is cell edge UE, if and the maximum of the quality of service of this cell edge UE is less than or equal to the first default quality of service threshold value, this base station for this UE determine one cooperation UE, and this base station is this UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Embodiment five
The embodiment of the present invention provides a kind of multipoint cooperative transmission system, and as shown in Figure 9, this multipoint cooperative transmission system comprises:
Coordinated multipoint transmission device described in above-described embodiment three and at least one and this coordinated multipoint transmission device carry out the UE of transfer of data; Or the UE of transfer of data is carried out in the base station described in above-described embodiment four and at least one and this base station.
In a kind of multipoint cooperative transmission system that the embodiment of the present invention provides, base station sends metrical information to UE and reports principle, UE reports principle to send metrical information to base station according to this metrical information, and this metrical information comprises the signal strength signal intensity of two neighbor cells of this UE of this UE reception.The metrical information that base station sends by receiving UE, and the signal strength signal intensity of two neighbor cells of this UE receiving according to this UE carrying in metrical information, determine that this UE is cell edge UE.And if the maximum of the quality of service of this UE is less than or equal to the first default quality of service threshold value, the cooperation UE of this UE is determined in base station, and in these two neighbor cells, be this UE and this cooperation UE and distribute identical running time-frequency resource, this UE and this cooperation UE transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission by the running time-frequency resource of base station assigns.Thereby base station all receives after the up multipoint reception signal of this cell edge UE and this cooperation UE transmission in these two neighbor cells, serial interference elimination is carried out to this up multipoint reception signal in base station, thereby obtains the signal of this cell edge UE transmission and the signal of this cooperation UE transmission.
The multipoint cooperative transmission system that the embodiment of the present invention provides, in the time of UE signal to be transmitted, because base station can first determine that this UE is cell edge UE, if and the maximum of the quality of service of this cell edge UE is less than or equal to the first default quality of service threshold value, base station for this UE determine one cooperation UE, and base station is this UE in these two neighbor cells and this cooperation UE distributes identical running time-frequency resource, to transmit this UE signal waiting for transmission and this cooperation UE signal waiting for transmission on this identical running time-frequency resource simultaneously, while having solved a cell edge UE signal transmission in prior art, need take the running time-frequency resource of multiple communities simultaneously, therefore the lower problem of the utilance of network spectrum and network capacity, thereby can improve utilance and the network capacity of network spectrum.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described module or unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized and during as production marketing independently or use, can be stored in a computer read/write memory medium using the form of SFU software functional unit.Based on such understanding, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) or processor carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (English full name: Read-Only Memory, english abbreviation: ROM), the various media that can be program code stored such as random access memory (English full name: Random Access Memory, english abbreviation: RAM), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (11)
1. a coordinated multi-point transmission method, is characterized in that, comprising:
Receive the metrical information that user equipment (UE) sends, described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception;
The signal strength signal intensity of two neighbor cells of the described UE receiving according to described UE, determines that described UE is cell edge UE;
If the maximum of the quality of service of described UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value;
In described two neighbor cells, be described UE and described cooperation UE distributes identical running time-frequency resource, for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission.
2. coordinated multi-point transmission method according to claim 1, is characterized in that, the signal strength signal intensity of two neighbor cells of the described described UE receiving according to described UE determines that described UE is cell edge UE, comprising:
Contrast respectively the signal strength signal intensity of two neighbor cells of the described UE that described UE receives and default secondary signal intensity threshold;
If the signal strength signal intensity of two neighbor cells of the described UE that described UE receives is all less than or equal to described secondary signal intensity threshold, determine that described UE is described cell edge UE.
3. coordinated multi-point transmission method according to claim 1 and 2, is characterized in that, described is that after described UE and described cooperation UE distribute identical running time-frequency resource, described method also comprises:
In described two neighbor cells, all receive the up multipoint reception signal of described UE and described cooperation UE transmission;
Described up multipoint reception signal is carried out to serial interference elimination, obtain respectively the signal of described UE transmission and the signal of described cooperation UE transmission.
4. according to the coordinated multi-point transmission method described in claim 1-3 any one, it is characterized in that, described method also comprises:
If the maximum of the quality of service of described UE is greater than described the first quality of service threshold value, in described two neighbor cells, distribute identical running time-frequency resource for described UE, for transmitting described UE signal waiting for transmission.
5. according to the coordinated multi-point transmission method described in claim 1-4 any one, it is characterized in that, before the described cooperation UE that determines described UE, described method also comprises:
Receive multiple quality of services of the described UE of described UE transmission;
Determine the maximum in multiple quality of services of described UE;
Contrast maximum and the described first quality of service threshold value of the quality of service of described UE.
6. a coordinated multipoint transmission device, is characterized in that, comprising:
Receiving element, the metrical information sending for receiving user equipment (UE), described metrical information comprises the signal strength signal intensity of two neighbor cells of the described UE of described UE reception;
Determining unit, the signal strength signal intensity of two neighbor cells of the described UE receiving for the described UE receiving according to described receiving element, determine that described UE is cell edge UE, if and the maximum of the quality of service of described UE is less than or equal to the first default quality of service threshold value, determine the cooperation UE of described UE, described cooperation UE is in a neighbor cell in described two neighbor cells, the signal strength signal intensity of the described neighbor cell receiving is more than or equal to first signal intensity threshold, and the maximum of quality of service is less than or equal to a UE of the second default quality of service threshold value,
Allocation units, distribute identical running time-frequency resource for be described determining unit definite described UE and described cooperation UE in described two neighbor cells, and described running time-frequency resource is used for transmitting described UE signal waiting for transmission and described cooperation UE signal waiting for transmission.
7. coordinated multipoint transmission device according to claim 6, is characterized in that,
Described determining unit, specifically for contrasting respectively the signal strength signal intensity of two neighbor cells of the described UE that described UE receives and default secondary signal intensity threshold, if and the signal strength signal intensity of two neighbor cells of the described UE that receives of described UE is all less than or equal to described secondary signal intensity threshold, determine that described UE is described cell edge UE.
8. according to the coordinated multipoint transmission device described in claim 6 or 7, it is characterized in that, described coordinated multipoint transmission device also comprises processing unit,
Described receiving element also for being after described UE and described cooperation UE distribute identical running time-frequency resource at described allocation units, all receives the up multipoint reception signal of described UE and described cooperation UE transmission in described two neighbor cells;
Described processing unit, carries out serial interference elimination for the described up multipoint reception signal that described receiving element is received, and obtains respectively the signal of described UE transmission and the signal of described cooperation UE transmission.
9. according to the coordinated multipoint transmission device described in claim 6-8 any one, it is characterized in that,
Described allocation units if be also greater than described the first quality of service threshold value for the maximum of the quality of service of described UE, distribute identical running time-frequency resource for described UE, for transmitting described UE signal waiting for transmission in described two neighbor cells.
10. according to the coordinated multipoint transmission device described in claim 6-9 any one, it is characterized in that,
Described receiving element, also for before determining the cooperation UE of described UE in described determining unit, receives multiple quality of services of the described UE of described UE transmission;
Described determining unit, also for determining the maximum of multiple quality of services of the described UE that described receiving element receives, and contrasts maximum and the described first quality of service threshold value of the quality of service of described UE.
11. 1 kinds of multipoint cooperative transmission systems, is characterized in that, comprising:
Coordinated multipoint transmission device as described in claim 6-10 any one and at least one and as described in coordinated multipoint transmission device carry out the user equipment (UE) of transfer of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427829.XA CN104168595B (en) | 2014-08-27 | 2014-08-27 | A kind of coordinated multi-point transmission method, apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427829.XA CN104168595B (en) | 2014-08-27 | 2014-08-27 | A kind of coordinated multi-point transmission method, apparatus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104168595A true CN104168595A (en) | 2014-11-26 |
| CN104168595B CN104168595B (en) | 2017-10-10 |
Family
ID=51912187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410427829.XA Active CN104168595B (en) | 2014-08-27 | 2014-08-27 | A kind of coordinated multi-point transmission method, apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104168595B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109314613A (en) * | 2016-06-15 | 2019-02-05 | 诺基亚通信公司 | Method and apparatus for executing the communication of uplink cooperative multi-point |
| CN110572847A (en) * | 2019-09-29 | 2019-12-13 | 京信通信系统（中国）有限公司 | Data transmission method, system, computer device and storage medium |
| WO2021056844A1 (en) * | 2019-09-29 | 2021-04-01 | 京信通信系统（中国）有限公司 | Data processing method, host unit, base station system and storage medium |
| WO2023241172A1 (en) * | 2022-06-15 | 2023-12-21 | Huawei Technologies Co., Ltd. | Systems and methods for ue cooperative mimo |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883402A (en) * | 2009-05-07 | 2010-11-10 | 中兴通讯股份有限公司 | Cooperative data transmission method and system |
| 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 |
| US20140018115A1 (en) * | 2012-07-16 | 2014-01-16 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for reducing inter-cell interference using intra-enb downlink coordinated multipoint services |
| CN103703855A (en) * | 2013-09-02 | 2014-04-02 | 华为技术有限公司 | Uplink collaborative transmitting method and apparatus |
-
2014
- 2014-08-27 CN CN201410427829.XA patent/CN104168595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883402A (en) * | 2009-05-07 | 2010-11-10 | 中兴通讯股份有限公司 | Cooperative data transmission method and system |
| 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 |
| US20140018115A1 (en) * | 2012-07-16 | 2014-01-16 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for reducing inter-cell interference using intra-enb downlink coordinated multipoint services |
| CN103703855A (en) * | 2013-09-02 | 2014-04-02 | 华为技术有限公司 | Uplink collaborative transmitting method and apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109314613A (en) * | 2016-06-15 | 2019-02-05 | 诺基亚通信公司 | Method and apparatus for executing the communication of uplink cooperative multi-point |
| CN110572847A (en) * | 2019-09-29 | 2019-12-13 | 京信通信系统（中国）有限公司 | Data transmission method, system, computer device and storage medium |
| WO2021056844A1 (en) * | 2019-09-29 | 2021-04-01 | 京信通信系统（中国）有限公司 | Data processing method, host unit, base station system and storage medium |
| WO2023241172A1 (en) * | 2022-06-15 | 2023-12-21 | Huawei Technologies Co., Ltd. | Systems and methods for ue cooperative mimo |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104168595B (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10117107B2 (en) | Method, apparatus, system and computer program | |
| US20120322484A1 (en) | Controlling Communication Devices | |
| US8934361B2 (en) | Downlink inter-cell interference coordination method and eNB | |
| KR101813822B1 (en) | Sending method and sending device for d2d discovery signal | |
| JP6719393B2 (en) | Method and device for determining a remote radio unit | |
| WO2019080119A1 (en) | Method and apparatus for adjusting broadcast beam domains | |
| JP6437094B2 (en) | Discovery signal transmission method, cell discovery method and apparatus | |
| US20180310311A1 (en) | Carrier aggregation implementation method on multiple carriers and base station | |
| CN105052044A (en) | Method, base station and user equipment for transmitting information | |
| US10560979B2 (en) | Measurement result reporting method, method for counting by timer, apparatus, and user equipment | |
| CN102014440A (en) | Method, device and system for inter-cell interference coordination (ICIC) | |
| CN113872905B (en) | Resource allocation method, device and system | |
| CN104168595A (en) | Multipoint cooperative transmission method, device and system | |
| US11196522B2 (en) | Enhanced sounding reference signal scheme | |
| EP2681951B1 (en) | Scheduling in coordinated multi-point transmission scheme | |
| CN108513728B (en) | System information sending method, system information receiving method and device | |
| EP2692081B1 (en) | Selection of a secondary component carrier based on interference information | |
| CN111919472B (en) | Random access response for BWP | |
| CN106416400B (en) | Method and apparatus for wireless communication and corresponding computer readable storage medium | |
| CN108293189A (en) | A kind of accidental access method and device | |
| CN103974291A (en) | Method, device and system for selecting coordinated multi-point transmission set | |
| Liu et al. | Optimizing channel allocation for D2D overlaying multi-channel downlink cellular networks | |
| CN111918333B (en) | Data transmission method and equipment | |
| CN103581919A (en) | Frequency selection method, user equipment and base station | |
| CN109818711B (en) | Method for determining bundling size, user terminal and network side equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |