CN104301898B - A kind of resource allocation methods and system - Google Patents
A kind of resource allocation methods and system Download PDFInfo
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- CN104301898B CN104301898B CN201310306814.3A CN201310306814A CN104301898B CN 104301898 B CN104301898 B CN 104301898B CN 201310306814 A CN201310306814 A CN 201310306814A CN 104301898 B CN104301898 B CN 104301898B
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- 238000013468 resource allocation Methods 0.000 title claims abstract description 80
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- 238000009826 distribution Methods 0.000 claims abstract description 67
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/29—Control channels or signalling for resource management between an access point and the access point controlling device
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Abstract
This application provides a kind of resource allocation methods and systems.The method is applied to the wireless communication system of identical networking, which comprises the first transmitting node determines twoth UE same or similar with the downlink reception beam direction of the first UE；Wherein, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；The downlink reception wave beam of first UE is from second transmitting node to the downlink link of the first UE；Obtain the resource allocation information of the 2nd UE；According to the resource allocation information, first resource is distributed for the first UE, the first resource is different from the Secondary resource that second transmitting node is the 2nd UE distribution.Using the present processes or system, the problem of UE is interfered in the region CRE can solve.
Description
Technical field
This application involves mobile communication fields, more particularly to a kind of resource allocation methods and system.
Background technique
It take LTE (Long Term Evolution long term evolution) as the 4th generation cell mobile communication systems of representative, relatively
In third generation mobile communication systems, the transmission rate and efficiency of transmission of mobile communication system are greatly improved.In LTE system, have
A kind of networking mode is that the neighboring community for enabling the LTE system of certain area cover uses identical frequency.Region in this section
Networking mode is known as identical networking.
Under conditions of identical networking, since the frequency point of each cell is identical, so can be generated between adjacent cell same
Frequency interferes.In order to solve the problems, such as co-channel interference lower network limited performance, the networking mode of isomery is used in the prior art.It is different
It include macro station (Macro) and micro- station (Pico) in network forming network.Wherein, micro- station be low power transmissions node (Low Power Node,
LPN).The transmission power at micro- station is less than the transmission power of macro station.Heterogeneous network passes through the heat under the biggish macro station of coverage area
Point region increases multiple low power micro- stations, can greatly improve the transmittability of hot zones.
Specifically, being provided with micro- station in the coverage area of macro station in heterogeneous network under conditions of identical networking.When macro
Very much, or even close to when being saturated, micro- standing-meeting expands the covering model of itself to the user equipment (User Equipment, UE) for the service of standing
It encloses, the UE more than macro station service ability is adsorbed on micro- station, provide service by micro- station for above-mentioned UE.This method can mention
The UE quantity that height is serviced in the coverage area of macro station, to improve the service ability of network.
In the prior art, the mode for expanding micro- station coverage area is mainly that base station (including macro station or micro- station) receives on UE
The transmitted reference signal of report receives power (Reference Signal Received Power, RSRP).It determines doing switching base station
When plan, increases an offset Δ in the actual value of the RSRP from micro- station received and obtain RSRP2, base station will
RSRP2 is compared with the RSRP1 not comprising offset from macro station, then base station UE can be switched to RSRP value compared with
Big website.
Assuming that before the coverage area for expanding micro- station, the coverage area at micro- station is A, after the coverage area for expanding micro- station,
The coverage area at micro- station is B, then the difference range of B and A is known as CRE (Cell Range Expansion, cell extension region).
UE in CRE, belongs to micro- station, but the signal power at micro- station that the UE is an actually-received, can be than the signal from macro station
The low value of offset Δ above-mentioned of power.And in CRE, the signal of macro station is equivalent to interference signal, so at this point, in CRE
UE can not obtain the communication service of normal quality.
Summary of the invention
The purpose of the application is to provide a kind of resource allocation methods and system, can be by carrying out reasonable resource point to UE
Match, solves the problem of that macro station is interfered with micro- station UE in cell edge or the region CRE under heterogeneous network.
To achieve the above object, this application provides following schemes:
The possible implementation of according to a first aspect of the present application the first, the application provide a kind of resource allocation side
Method, the method are applied to the wireless communication system of identical networking, which comprises
First transmitting node determines twoth UE same or similar with the downlink reception beam direction of the first UE；Wherein, institute
It states the first UE and belongs to the first transmitting node, the 2nd UE belongs to the second transmitting website；The downlink reception of first UE
Wave beam is from second transmitting node to the downlink link of the first UE；
Obtain the resource allocation information of the 2nd UE；
According to the resource allocation information, first resource, the first resource and described second are distributed for the first UE
Transmitting node is that the Secondary resource of the 2nd UE distribution is different.
The possible implementation of second with reference to first aspect, the downlink reception beam direction of the determination and the first UE
The 2nd same or similar UE, comprising:
It is chosen in each UE for belonging to second transmitting node with the first UE with same or similar
Descending transmission channel information UE as the 2nd UE；
Wherein, the descending transmission channel information of the first UE is to be carried out by second transmitting node to the first UE
Channel state information measurement obtains.
The first specific implementation of the possible implementation of second with reference to first aspect, it is described selection with it is described
First UE has the UE of same or similar descending transmission channel information, comprising:
Obtain the first downlink precoding matrix of the first UE；
The downlink precoding matrix for belonging to each UE of second transmitting node is obtained, downlink precoding matrix is obtained
Set；
From the downlink precoding set of matrices, search under second to match with the first downlink precoding matrix
Row pre-coding matrix；It is described to match with the first downlink precoding matrix, refer in the second downlink precoding matrix
An at least column precoding vector it is same or similar at least column precoding vector in the first downlink precoding matrix；
Choose the corresponding UE of the second downlink precoding matrix.
Second of specific implementation of the possible implementation of second with reference to first aspect, it is described selection with it is described
First UE has the UE of same or similar descending transmission channel information, comprising:
Obtain the first fluxion of the first UE；
Obtain the fluxion for belonging to each UE of second transmitting node；
Choose the UE to be matched for belonging to second transmitting node；
When the fluxion of the UE to be matched is equal with first fluxion, the pre-coding matrix of the UE to be matched is judged
Indicated value it is whether same or similar with the indicated value of pre-coding matrix of the first UE；
If it is, choosing the UE to be matched.
The third specific implementation of the possible implementation of second with reference to first aspect, belongs to described second
The acquisition modes of the descending transmission channel information of each UE of transmitting node, comprising:
Receive the downlink transfer letter for each UE for belonging to second transmitting node that second transmitting node is sent
Road information；
The descending transmission channel information of each UE is to carry out channel to each UE by second transmitting node
Status information measurement obtains.
Any one in five kinds of possible implementations with reference to first aspect, the resource for obtaining the 2nd UE
Distribute information, comprising:
Obtain time-domain resource information, frequency domain resource information or the code domain resource information of the 2nd UE.
Any one in five kinds of possible implementations with reference to first aspect, it is described for the first UE distribution first
Resource, comprising:
The first subframe position is distributed for the first UE, first subframe position and second transmitting node are described
Second subframe position of the 2nd UE distribution is different；
Wherein, first subframe position is for indicating that first transmitting node and the first UE carry out air interface transmission
When, the position of the subframe numbers used in the time domain；Second subframe position for indicate second transmitting node with it is described
When 2nd UE carries out air interface transmission, the position of the subframe numbers used in the time domain.
Any one in five kinds of possible implementations with reference to first aspect, it is described for the first UE distribution first
Resource, comprising:
The first subband indicated value is distributed for the first UE, the first subband indicated value is with second transmitting node
Second subband indicated value of the 2nd UE distribution is different；
Wherein, the first subband indicated value is for indicating that first transmitting node carries out eating dishes without rice or wine to pass with the first UE
When defeated, the indicated value of the subband used on frequency domain；The second subband indicated value is for indicating second transmitting node and institute
When stating the 2nd UE progress air interface transmission, the indicated value of the subband used on frequency domain.
Any one in five kinds of possible implementations with reference to first aspect, it is described for the first UE distribution first
Resource, comprising:
For the first UE distribution the first spread spectrum code word indicated value, the first spread spectrum code word indicated value and second hair
It is different to penetrate the second spread spectrum code word indicated value that node is the 2nd UE distribution；
Wherein, the first spread spectrum code word indicated value is for indicating that it is empty that first transmitting node and the first UE carry out
When port transmission, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word indicated value is for indicating described second
When transmitting node and the 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain.
The possible implementation of according to a second aspect of the present application the first, the application provide a kind of resource allocation system
System, the system comprises:
User equipment determining module, for determining second same or similar with the downlink reception beam direction of the first UE
UE；Wherein, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；First UE
Downlink reception wave beam from second transmitting node to the downlink link of the first UE；
Resource allocation information obtains module, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module distributes first resource for the first UE for according to the resource allocation information, and described the
One resource is different from the Secondary resource that second transmitting node is the 2nd UE distribution.
In conjunction with second of possible implementation of second aspect, the user equipment determining module, comprising:
User equipment selection unit, in each UE for belonging to second transmitting node choose with it is described
First UE has the UE of same or similar descending transmission channel information as the 2nd UE；
Wherein, the descending transmission channel information of the first UE is to be carried out by second transmitting node to the first UE
Channel state information measurement obtains.
In conjunction with the first concrete implementation mode of second of possible implementation of second aspect, the user equipment
Selection unit, comprising:
First downlink precoding matrix obtains subelement, for obtaining the first downlink precoding matrix of the first UE；
Downlink precoding set of matrices obtains subelement, for obtaining each UE for belonging to second transmitting node
Downlink precoding matrix obtains downlink precoding set of matrices；
Second downlink precoding matrix searches subelement, is used for from the downlink precoding set of matrices, lookup and institute
State the second downlink precoding matrix that the first downlink precoding matrix matches；It is described with the first downlink precoding matrix phase
Matching refers to an at least column precoding vector and the first downlink precoding matrix in the second downlink precoding matrix
In an at least column precoding vector it is same or similar；
First user equipment chooses subelement, for choosing the corresponding UE of the second downlink precoding matrix.
In conjunction with second of concrete implementation mode of second of possible implementation of second aspect, the user equipment
Selection unit, comprising:
First fluxion acquiring unit, for obtaining the first fluxion of the first UE；
Second fluxion obtains subelement, for obtaining the fluxion for belonging to each UE of second transmitting node；
User equipment to be matched chooses subelement, belongs to the to be matched of second transmitting node for choosing one
UE；
Judgment sub-unit, for when the fluxion of the UE to be matched is equal with first fluxion, judgement it is described to
Whether the indicated value of the pre-coding matrix with UE is same or similar with the indicated value of pre-coding matrix of the first UE；
Second user equipment chooses subelement, for when the judging result of the judgment sub-unit, which is, is, described in selection
UE to be matched.
In conjunction with the third concrete implementation mode of second of possible implementation of second aspect, the user equipment
Selection unit, comprising:
Descending transmission channel information receiving subelement, for belonging to of receiving that second transmitting node sends described the
The descending transmission channel information of each UE of two transmitting nodes；
The descending transmission channel information of each UE is to carry out channel to each UE by second transmitting node
Status information measurement obtains.
In conjunction with second aspect five kinds of possible implementations in any one, the resource allocation information obtains mould
Block, comprising:
Resource allocation information acquiring unit, for obtain the time-domain resource information of the 2nd UE, frequency domain resource information or
Code domain resource information.
In conjunction with second aspect five kinds of possible implementations in any one, the resource distribution module, comprising:
First resource allocation unit, for for the first UE distribute the first subframe position, first subframe position with
Second transmitting node is that the second subframe position of the 2nd UE distribution is different；
Wherein, first subframe position is for indicating that first transmitting node and the first UE carry out air interface transmission
When, the position of the subframe numbers used in the time domain；Second subframe position for indicate second transmitting node with it is described
When 2nd UE carries out air interface transmission, the position of the subframe numbers used in the time domain.
In conjunction with second aspect five kinds of possible implementations in any one, the resource distribution module, comprising:
Secondary resource allocation unit, for distributing the first subband indicated value, the first subband instruction for the first UE
It is worth different from the second subband indicated value that second transmitting node is the 2nd UE distribution；
Wherein, the first subband indicated value is for indicating that first transmitting node carries out eating dishes without rice or wine to pass with the first UE
When defeated, the indicated value of the subband used on frequency domain；The second subband indicated value is for indicating second transmitting node and institute
When stating the 2nd UE progress air interface transmission, the indicated value of the subband used on frequency domain.
In conjunction with second aspect five kinds of possible implementations in any one, the resource distribution module, comprising:
Information resources allocation unit, for spreading code word indicated value, first spread spectrum for the first UE distribution first
Code word indicated value is different from the second spread spectrum code word indicated value that second transmitting node is the 2nd UE distribution；
Wherein, the first spread spectrum code word indicated value is for indicating that it is empty that first transmitting node and the first UE carry out
When port transmission, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word indicated value is for indicating described second
When transmitting node and the 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain.
According to specific embodiment provided by the present application, this application discloses following technical effects:
Resource allocation methods disclosed in the present application or system are identical as the downlink reception beam direction of the first UE by determination
Or similar 2nd UE, obtain the resource allocation information of the 2nd UE；It is the first UE according to the resource allocation information
First resource is distributed, first resource is different from the Secondary resource of the 2nd UE, can be to avoid the second transmitting node in the wave
The wireless signal emitted on Shu Fangxiang interference caused by the first UE, thus solve in micro- station edge or the region CRE UE by
To the problem of interference.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of the resource allocation methods embodiment 1 of the application；
Fig. 2 is the flow chart of the resource allocation methods embodiment 2 of the application；
Fig. 3 is the flow chart of the resource allocation methods embodiment 3 of the application；
Fig. 4 is the structure chart of the resource allocation system embodiment 1 of the application；
Fig. 5 is the structure chart of the resource allocation system embodiment 2 of the application；
Fig. 6 is the structure chart of the resource allocation system embodiment 3 of the application；
Fig. 7 is the structure chart of the calculate node of the application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing and it is specific real
Applying mode, the present application will be further described in detail.
The resource allocation methods of the application are mainly used in the wireless communication system of identical networking.The wireless communication system
System can be the wireless communication system comprising micro- station and macro station.The executing subject of the resource allocation methods of the application can be micro-
It stands, is also possible to macro station.
Fig. 1 is the flow chart of the resource allocation methods embodiment 1 of the application.As shown in Figure 1, the method may include:
Step 101: the first transmitting node determines twoth UE same or similar with the downlink reception beam direction of the first UE；
Wherein, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；Under first UE
Row receives wave beam from second transmitting node to the downlink link of the first UE；
Step 102: obtaining the resource allocation information of the 2nd UE；
Step 103: according to the resource allocation information, distribute first resource for the first UE, the first resource with
Second transmitting node is that the Secondary resource of the 2nd UE distribution is different.
In step 101, first transmitting node can be micro- station, be also possible to macro station.When first transmitting node
When for micro- station, second transmitting node is then macro station；When first transmitting node is macro station, first transmitting node
It is then micro- station.
Downlink reception wave beam typically refers to the wireless signal that transmitting node is sent to UE.In cell mobile communication systems,
Downlink reception wave beam is directive.
In the present embodiment, the downlink reception wave beam of the first UE is from second transmitting node to the downlink of the first UE
Emit link, that is to say, that the downlink reception wave beam of the first UE is that the second transmitting node is sent to the first UE.Under 2nd UE
It is that the second transmitting node is sent to the 2nd UE that row, which receives wave beam,.The downlink reception wave beam of two UE is saved from the same transmitting
Point.
Inventor has found that when the downlink reception beam direction of two UE is same or similar, the first UE and
Two UE have same or similar descending transmission channel information.Therefore, second transmitting node can be belonged to described
Choose in each UE has the UE of same or similar descending transmission channel information as the 2nd UE with the first UE.
Wherein, the first UE is located in micro- station edge or CRE.The descending transmission channel information of first UE can be by institute
It states the second transmitting node and downlink channel condition information (Channel State Information, CSI) is carried out to the first UE
Measurement obtains.The descending transmission channel information may include: order instruction (Rank Indicator, RI), and pre-coding matrix refers to
Show (Precoding matrix indicator, PMI), channel quality instruction (Channel Quality Indicator,
CQI) etc..
The acquisition modes of the descending transmission channel information of first UE can also be: first by second transmitting node to institute
It states the first UE progress uplink channel status information measurement and obtains the uplink channel status information of the first UE, further according to channel
Reciprocity determines the descending transmission channel information of the first UE.The reciprocity of channel refers to, the pre-coding matrix Hu of up channel with
The transposition of down channel pre-coding matrix Hd is identical.
It should also be noted that, the 2nd UE can be multiple, the first UE is also possible to multiple.
In step 102, the resource allocation information of the 2nd UE is obtained, may include: the time domain for obtaining the 2nd UE
Resource information, frequency domain resource information or code domain resource information.
It can be the first UE in step 103 according to the resource allocation information of the 2nd UE got in step 102
The first resource of distribution includes: time-domain resource, frequency domain resource or code domain resource.
Specifically, can learn that the second transmitting node is described second when getting the time-domain resource information of the 2nd UE
Second subframe position of UE distribution can distribute the first subframe position accordingly for the first UE.As long as the first subframe position with
Second subframe position is different.Wherein, first subframe position is for indicating first transmitting node and described first
When UE carries out air interface transmission, the position of the subframe numbers used in the time domain；Second subframe position is for indicating described second
When transmitting node and the 2nd UE carry out air interface transmission, the position of the subframe numbers used in the time domain.
When getting the frequency domain resource information of the 2nd UE, it can learn that the second transmitting node is the 2nd UE distribution
Second subband indicated value can distribute the first subband indicated value accordingly for the first UE.First subband indicated value and the second son
Band indicated value is different.Wherein, the first subband indicated value is for indicating that first transmitting node and the first UE carry out
When air interface transmission, the indicated value of the subband used on frequency domain；The second subband indicated value is for indicating the second transmitting section
When point carries out air interface transmission with the 2nd UE, the indicated value of the subband used on frequency domain.
When getting the code domain resource information of the 2nd UE, it can learn that the second transmitting node is the 2nd UE distribution
Second spread spectrum code word indicated value.It can be accordingly the first UE distribution the first spread spectrum code word indicated value.First spread spectrum code word refers to
Indicating value is different from the second spread spectrum code word indicated value.Wherein, the first spread spectrum code word indicated value is for indicating first transmitting
When node and the first UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word
When indicated value is for indicating that second transmitting node and the 2nd UE carry out air interface transmission, the spread spectrum code word that is used in code domain
Indicated value.
The principle of the present embodiment is illustrated below.Inventor has found that being located in micro- station edge or CRE
The first UE why will receive interference, be because the second transmitting node also send wireless signal on the direction of the first UE.
Originally the first UE that the wireless signal of the first transmitting node should be received, receives the second transmitting section in synchronization same frequency
After the wireless signal of point, the interference of the second transmitting node just will receive.It therefore, can be by determining the second transmitting node and the
Downlink reception beam direction between one UE, on the beam direction, enabling the first transmitting node is the resource of the first UE distribution,
It is orthogonal with resource of second transmitting node on the beam direction for the 2nd UE distribution, so that it may the second transmitting node be avoided to exist
The wireless signal emitted on the beam direction interference caused by the first UE.
Wherein, the first transmitting node is the resource of the first UE distribution, is on the beam direction with the second transmitting node
The resource of 2nd UE distribution, the two is orthogonal, refers to that the two is different in time domain, frequency domain or code domain.It is different in the time domain, then two
Person is the wireless signal of different moments；Different on frequency domain, then the two is the wireless signal of different frequency；It is different in code domain,
Then the two is the wireless signal of different coding；Above-mentioned three kinds of situations can be to avoid the second transmitting node on the beam direction
The wireless signal of transmitting is interfered caused by the first UE.
In conclusion the resource allocation methods of the present embodiment, pass through the determining downlink reception beam direction phase with the first UE
Same or similar 2nd UE, obtains the resource allocation information of the 2nd UE；It is described first according to the resource allocation information
UE distributes first resource, and first resource is different from the Secondary resource of the 2nd UE, can be to avoid the second transmitting node described
The wireless signal emitted on beam direction interference caused by the first UE, thus solve in micro- station edge or the region CRE UE by
To the problem of interference.
Fig. 2 is the flow chart of the resource allocation methods embodiment 2 of the application.In the present embodiment, using micro- station as executing master
Body is illustrated.That is the first transmitting node is micro- station, and the second transmitting node is macro station.As shown in Fig. 2, the method can wrap
It includes:
Step 201: obtaining the first downlink precoding matrix of the first UE；
In this step, the first downlink precoding matrix of the first UE be the first UE itself according to macro station to described first
The reference signal that UE is sent carries out what channel state information measurement obtained.Measurement result can be sent to micro- station by macro station.It can also
To be configured to the first UE, enable the first UE that measurement result is transmitted directly to micro- station.
It wherein, include multiple vectors in pre-coding matrix, under these vectors can be used for characterizing between macro station and UE
Row receives beam direction.
Step 202: obtaining the downlink precoding matrix for belonging to each UE of second transmitting node, it is pre- to obtain downlink
Encoder matrix set；
In this step, the descending transmission channel information of each UE is also to carry out channel shape to each UE by macro station
State information measurement obtains.Measurement result can be sent to micro- station by macro station.Each UE can also be configured, enable each UE
Measurement result is transmitted directly to micro- station.
Step 203: from the downlink precoding set of matrices, lookup matches with the first downlink precoding matrix
The second downlink precoding matrix；It is described to match with the first downlink precoding matrix, refer to that second downlink prelists
An at least column precoding vector in code matrix and at least column precoding vector phase in the first downlink precoding matrix
It is same or close；
An at least column precoding vector and the first downlink precoding matrix in the second downlink precoding matrix
In an at least column precoding vector it is whether close, can specifically be analyzed using following manner: according to two column precodings to
Amount, can calculate the angle between two column vectors, can with the minimum of the angle and macro station antenna (i.e. the second transmitting node)
Identification angle (angular resolution) is compared.If the angle is less than or equal to the minimum recognizable angle, recognize
It is similar for two column vectors, and then can determines the downlink reception wave beam of above-mentioned two column vector corresponding first UE and the 2nd UE
Direction is close.
Step 204: choosing the corresponding UE of the second downlink precoding matrix.
The second downlink precoding matrix can be multiple, each second downlink precoding matrix and a UE phase
It is corresponding.
Step 205: obtaining the resource allocation information of the 2nd UE；
Step 206: according to the resource allocation information, distribute first resource for the first UE, the first resource with
Second transmitting node is that the Secondary resource of the 2nd UE distribution is different.
In the present embodiment, obtained in step 205 in the mode and step 206 of the resource allocation information of the 2nd UE as institute
The mode for stating the first UE distribution first resource, can be identical as the mode in embodiment 1, and details are not described herein again.
Fig. 3 is the flow chart of the resource allocation methods embodiment 3 of the application.In the present embodiment, using macro station as executing master
Body is illustrated.That is the first transmitting node is macro station, and the second transmitting node is micro- station.As shown in figure 3, the method can wrap
It includes:
Step 301: obtaining the first fluxion of the first UE；
In LTE system, UE can have mutiple antennas, and each antenna can send different data flows simultaneously.UE makes
With the number for the data flow that different antennas is sent, referred to as fluxion.For example, UE sends two different data using two antennas
Stream, then the maximum fluxion of the UE is 2.
The first fluxion of first UE can carry out channel state information measurement to the first UE according to the second transmitting node and obtain
RI value obtain.
Step 302: obtaining the fluxion for belonging to each UE of second transmitting node；
In this step, channel state information can also be carried out to each UE according to second transmitting node and measured
The RI value of each UE arrived, gets the fluxion of each UE.
Step 303: choosing the UE to be matched for belonging to second transmitting node；
The UE for belonging to second transmitting node is UE to be matched.Belong to the UE to be matched of second transmitting node
It can be chosen get.
Step 304: when the fluxion of the UE to be matched is equal with first fluxion, judging that the UE's to be matched is pre-
Whether the indicated value of encoder matrix is same or similar with the indicated value of pre-coding matrix of the first UE；
In LTE system, pre-coding matrix can be identified with different serial numbers.This serial number is known as the finger of pre-coding matrix
Indicating value (Precoding matrix indicator, PMI).When fluxion is identical, PMI is identical, then it represents that corresponding precoding
Matrix is identical.When fluxion is close, PMI is close, can refer to that the absolute value of the difference of two PMI is 1.
Step 305: when the judgment result is yes, then choosing the UE to be matched.
The UE to be matched chosen in step 305 is the 2nd UE.
Step 306: obtaining the resource allocation information of the 2nd UE；
Step 307: according to the resource allocation information, distribute first resource for the first UE, the first resource with
Second transmitting node is that the Secondary resource of the 2nd UE distribution is different.
In the present embodiment, obtained in step 306 in the mode and step 307 of the resource allocation information of the 2nd UE as institute
The mode for stating the first UE distribution first resource, can also be identical as the mode in embodiment 1, and details are not described herein again.
It should be noted that in the present embodiment, when the fluxion of the UE to be matched is equal with first fluxion, judgement
Whether (PMI's indicated value of the pre-coding matrix of the UE to be matched is positive with the indicated value of the pre-coding matrix of the first UE
Integer) it is same or similar；Whether same or similar, the Ke Yijian without the column vector in two different pre-coding matrixes of analysis
In the resource allocation methods for changing the application, the judgement whether same or similar for the descending transmission channel information of two UE
Journey improves the efficiency of the resource allocation methods of the application.
Present invention also provides a kind of resource allocation systems.Fig. 4 is the structure of the resource allocation system embodiment 1 of the application
Figure.As shown in figure 4, the system may include:
User equipment determining module 401, for determining same or similar with the downlink reception beam direction of the first UE the
Two UE；Wherein, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；Described first
The downlink reception wave beam of UE is from second transmitting node to the downlink link of the first UE；
Resource allocation information obtains module 402, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module 403, for distributing first resource, institute for the first UE according to the resource allocation information
It is different from the Secondary resource that second transmitting node is the 2nd UE distribution to state first resource.
The user equipment determining module 401 may include:
User equipment selection unit, in each UE for belonging to second transmitting node choose with it is described
First UE has the UE of same or similar descending transmission channel information as the 2nd UE；
Wherein, the descending transmission channel information of the first UE is to be carried out by second transmitting node to the first UE
Channel state information measurement obtains.
The user equipment selection unit may include:
Descending transmission channel information receiving subelement, for belonging to of receiving that second transmitting node sends described the
The descending transmission channel information of each UE of two transmitting nodes；
The descending transmission channel information of each UE is to carry out channel to each UE by second transmitting node
Status information measurement obtains.
The resource distribution module 403 may include:
First resource allocation unit, for for the first UE distribute the first subframe position, first subframe position with
Second transmitting node is that the second subframe position of the 2nd UE distribution is different；
Wherein, first subframe position is for indicating that first transmitting node and the first UE carry out air interface transmission
When, the position of the subframe numbers used in the time domain；Second subframe position for indicate second transmitting node with it is described
When 2nd UE carries out air interface transmission, the position of the subframe numbers used in the time domain.
And/or Secondary resource allocation unit, for distributing the first subband indicated value, first son for the first UE
It is different from the second subband indicated value that second transmitting node is the 2nd UE distribution with indicated value；
Wherein, the first subband indicated value is for indicating that first transmitting node carries out eating dishes without rice or wine to pass with the first UE
When defeated, the indicated value of the subband used on frequency domain；The second subband indicated value is for indicating second transmitting node and institute
When stating the 2nd UE progress air interface transmission, the indicated value of the subband used on frequency domain.
And/or information resources allocation unit, for for the first UE distribution the first spread spectrum code word indicated value, described the
One spread spectrum code word indicated value is different from the second spread spectrum code word indicated value that second transmitting node is the 2nd UE distribution；
Wherein, the first spread spectrum code word indicated value is for indicating that it is empty that first transmitting node and the first UE carry out
When port transmission, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word indicated value is for indicating described second
When transmitting node and the 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain.
The resource allocation system of the present embodiment, it is same or similar with the downlink reception beam direction of the first UE by determination
2nd UE obtains the resource allocation information of the 2nd UE；According to the resource allocation information, for the first UE distribution first
Resource, first resource is different from the Secondary resource of the 2nd UE, can be to avoid the second transmitting node on the beam direction
The wireless signal of transmitting is interfered caused by the first UE, to solve the problems, such as that UE is interfered in the region CRE.
Fig. 5 is the structure chart of the resource allocation system embodiment 2 of the application.As shown in figure 5, the system may include:
First downlink precoding matrix obtains subelement 501, for obtaining the first downlink precoding square of the first UE
Battle array；
Downlink precoding set of matrices obtains subelement 502, belongs to each of second transmitting node for obtaining
The downlink precoding matrix of UE, obtains downlink precoding set of matrices；
Second downlink precoding matrix searches subelement 503, for from the downlink precoding set of matrices, search with
The second downlink precoding matrix that the first downlink precoding matrix matches；Described and the first downlink precoding matrix
Match, refers at least column precoding vector and the first downlink precoding square in the second downlink precoding matrix
An at least column precoding vector in battle array is same or similar；
First user equipment chooses subelement 504, for choosing the corresponding UE of the second downlink precoding matrix.
The corresponding UE of the second downlink precoding matrix after selection is the 2nd UE.
Resource allocation information obtains module 402, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module 403, for distributing first resource, institute for the first UE according to the resource allocation information
It is different from the Secondary resource that second transmitting node is the 2nd UE distribution to state first resource.
Fig. 6 is the structure chart of the resource allocation system embodiment 3 of the application.As shown in fig. 6, the system may include:
First fluxion acquiring unit 601, for obtaining the first fluxion of the first UE；
Second fluxion obtains subelement 602, for obtaining the fluxion for belonging to each UE of second transmitting node；
User equipment to be matched chooses subelement 603, for choose one belong to second transmitting node to
With UE；
Judgment sub-unit 604, for when the fluxion of the UE to be matched is equal with first fluxion, judgement it is described to
Whether the indicated value for matching the pre-coding matrix of UE is same or similar with the indicated value of pre-coding matrix of the first UE；
Second user equipment chooses subelement 605, for selecting when the judging result of the judgment sub-unit 604, which is, is
Take the UE to be matched.
The UE to be matched after selection is the 2nd UE.
Resource allocation information obtains module 402, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module 403, for distributing first resource, institute for the first UE according to the resource allocation information
It is different from the Secondary resource that second transmitting node is the 2nd UE distribution to state first resource.
In addition, calculate node may be the master comprising computing capability the embodiment of the present application also provides a kind of calculate node
Machine server personal computer PC or portable portable computer or terminal etc., the application are specifically real
Example is applied not limit the specific implementation of calculate node.
Fig. 7 is the structure chart of the calculate node of the application.As shown in fig. 7, calculate node 700 includes:
Processor (processor) 710, communication interface (Communications Interface) 720, memory
(memory) 730, bus 740.
Processor 710, communication interface 720, memory 730 complete mutual communication by bus 740.
Processor 710, for executing program 732.
Specifically, program 732 may include program code, and said program code includes computer operation instruction.
Processor 710 may be a central processor CPU or specific integrated circuit ASIC (Application
Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present application
Road.
Memory 730, for storing program 732.Memory 730 may include high speed RAM memory, it is also possible to further include
Nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.Program 732 specifically can wrap
It includes:
User equipment determining module 401, for determining same or similar with the downlink reception beam direction of the first UE the
Two UE；Wherein, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；Described first
The downlink reception wave beam of UE is from second transmitting node to the downlink link of the first UE；
Resource allocation information obtains module 402, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module 403, for distributing first resource, institute for the first UE according to the resource allocation information
It is different from the Secondary resource that second transmitting node is the 2nd UE distribution to state first resource.
Corresponding module or unit in program 732 in specific implementation referring to fig. 4-embodiment illustrated in fig. 6 of each module, herein
It does not repeat.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Through the above description of the embodiments, those skilled in the art can be understood that the application can be by
Software adds the mode of required hardware platform to realize, naturally it is also possible to all implemented by hardware, but in many cases before
Person is more preferably embodiment.Based on this understanding, the technical solution of the application contributes to background technique whole or
Person part can be embodied in the form of software products, which can store in storage medium, such as
ROM/RAM, magnetic disk, CD etc., including some instructions are used so that a computer equipment (can be personal computer, service
Device or the network equipment etc.) execute method described in certain parts of each embodiment of the application or embodiment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and above embodiments are said
It is bright to be merely used to help understand the present processes and its core concept；At the same time, for those skilled in the art, foundation
The thought of the application, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as the limitation to the application.
Claims (18)
1. a kind of resource allocation methods, which is characterized in that the method is applied to the wireless communication system of identical networking, the side
Method includes:
First transmitting node determines twoth UE same or similar with the downlink reception beam direction of the first UE；Wherein, described
One UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；The downlink reception wave beam of first UE
From second transmitting node to the downlink link of the first UE, first transmitting node is micro- station, described the
Two transmitting nodes are macro station or first transmitting node is macro station, and second transmitting node is micro- station；
Obtain the resource allocation information of the 2nd UE；
According to the resource allocation information, on the downlink reception beam direction, first resource, institute are distributed for the first UE
It is orthogonal with the Secondary resource that second transmitting node is the 2nd UE distribution to state first resource, and first transmitting node is
The first resource of the first UE distribution, is described second on the downlink reception beam direction with second transmitting node
Both Secondary resources of UE distribution are orthogonal, refer to that the two is different in time domain, frequency domain or code domain；It is different in the time domain, then two
Person is the wireless signal of different moments；Different on frequency domain, then the two is the wireless signal of different frequency；It is different in code domain,
Then the two is the wireless signal of different coding.
2. the method according to claim 1, wherein the downlink reception beam direction phase of the determination and the first UE
Same or similar 2nd UE, comprising:
Choosing in each UE for belonging to second transmitting node with the first UE there is same or similar downlink to pass
The UE of defeated channel information is as the 2nd UE；
Wherein, the descending transmission channel information of the first UE is to carry out channel to the first UE by second transmitting node
Status information measurement obtains.
3. according to the method described in claim 2, it is characterized in that, the selection is with the first UE with same or similar
The UE of descending transmission channel information, comprising:
Obtain the first downlink precoding matrix of the first UE；
The downlink precoding matrix for belonging to each UE of second transmitting node is obtained, downlink precoding matrix stack is obtained
It closes；
From the downlink precoding set of matrices, it is pre- to search the second downlink to match with the first downlink precoding matrix
Encoder matrix；It is described to match with the first downlink precoding matrix, refer in the second downlink precoding matrix extremely
A few column precoding vector is same or similar at least column precoding vector in the first downlink precoding matrix；
Choose the corresponding UE of the second downlink precoding matrix.
4. according to the method described in claim 2, it is characterized in that, the selection is with the first UE with same or similar
The UE of descending transmission channel information, comprising:
Obtain the first fluxion of the first UE；
Obtain the fluxion for belonging to each UE of second transmitting node；
Choose the UE to be matched for belonging to second transmitting node；
When the fluxion of the UE to be matched is equal with first fluxion, the finger of the pre-coding matrix of the UE to be matched is judged
Whether indicating value is same or similar with the indicated value of pre-coding matrix of the first UE；
If it is, choosing the UE to be matched.
5. according to the method described in claim 2, it is characterized in that, belonging to the downlink of each UE of second transmitting node
The acquisition modes of transmitting channel information, comprising:
Receive the descending transmission channel letter for each UE for belonging to second transmitting node that second transmitting node is sent
Breath；
The descending transmission channel information of each UE is to carry out channel status to each UE by second transmitting node
What information measurement obtained.
6. method according to claim 1-5, which is characterized in that the resource allocation for obtaining the 2nd UE
Information, comprising:
Obtain time-domain resource information, frequency domain resource information or the code domain resource information of the 2nd UE.
7. method according to claim 1-5, which is characterized in that described for the first money of the first UE distribution
Source, comprising:
The first subframe position is distributed for the first UE, first subframe position and second transmitting node are described second
Second subframe position of UE distribution is different；
Wherein, when first subframe position is for indicating that first transmitting node and the first UE carry out air interface transmission,
The position of the subframe numbers used in the time domain；Second subframe position is for indicating second transmitting node and described second
When UE carries out air interface transmission, the position of the subframe numbers used in the time domain.
8. method according to claim 1-5, which is characterized in that described for the first money of the first UE distribution
Source, comprising:
The first subband indicated value is distributed for the first UE, the first subband indicated value and second transmitting node are described
Second subband indicated value of the 2nd UE distribution is different；
Wherein, the first subband indicated value is for indicating that first transmitting node and the first UE carry out air interface transmission
When, the indicated value of the subband used on frequency domain；The second subband indicated value for indicate second transmitting node with it is described
When 2nd UE carries out air interface transmission, the indicated value of the subband used on frequency domain.
9. method according to claim 1-5, which is characterized in that described for the first money of the first UE distribution
Source, comprising:
For the first UE distribution the first spread spectrum code word indicated value, the first spread spectrum code word indicated value and second transmitting are saved
Point is that the second spread spectrum code word indicated value of the 2nd UE distribution is different；
Wherein, the first spread spectrum code word indicated value is for indicating that first transmitting node carries out eating dishes without rice or wine to pass with the first UE
When defeated, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word indicated value is for indicating second transmitting
When node and the 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain.
10. a kind of resource allocation system, which is characterized in that the system comprises:
User equipment determining module, for determining twoth UE same or similar with the downlink reception beam direction of the first UE；Its
In, the first UE belongs to the first transmitting node, and the 2nd UE belongs to the second transmitting website；The downlink of first UE
Wave beam is received from second transmitting node to the downlink link of the first UE, first transmitting node is micro-
It stands, second transmitting node is macro station or first transmitting node is macro station, and second transmitting node is micro- station；
Resource allocation information obtains module, for obtaining the resource allocation information of the 2nd UE；
Resource distribution module, for being described first on the downlink reception beam direction according to the resource allocation information
UE distributes first resource, and the first resource is orthogonal with the Secondary resource that second transmitting node is the 2nd UE distribution,
First transmitting node is the first resource of the first UE distribution, with second transmitting node in the downlink reception wave
It is that both Secondary resources of the 2nd UE distribution are orthogonal on Shu Fangxiang, refers to that the two is different in time domain, frequency domain or code domain；
Different in the time domain, then the two is the wireless signal of different moments；Different on frequency domain, then the two is the wireless communication of different frequency
Number；Different in code domain, then the two is the wireless signal of different coding.
11. system according to claim 10, which is characterized in that the user equipment determining module, comprising:
User equipment selection unit has for choosing in each UE for belonging to second transmitting node with the first UE
There is the UE of same or similar descending transmission channel information as the 2nd UE；
Wherein, the descending transmission channel information of the first UE is to carry out channel to the first UE by second transmitting node
Status information measurement obtains.
12. system according to claim 11, which is characterized in that the user equipment selection unit, comprising:
First downlink precoding matrix obtains subelement, for obtaining the first downlink precoding matrix of the first UE；
Downlink precoding set of matrices obtains subelement, for obtaining the downlink for belonging to each UE of second transmitting node
Pre-coding matrix obtains downlink precoding set of matrices；
Second downlink precoding matrix searches subelement, for from the downlink precoding set of matrices, searches and described the
The second downlink precoding matrix that one downlink pre-coding matrix matches；It is described with the first downlink precoding matrix phase
Match, refers in at least column precoding vector and the first downlink precoding matrix in the second downlink precoding matrix
An at least column precoding vector it is same or similar；
First user equipment chooses subelement, for choosing the corresponding UE of the second downlink precoding matrix.
13. system according to claim 11, which is characterized in that the user equipment selection unit, comprising:
First fluxion acquiring unit, for obtaining the first fluxion of the first UE；
Second fluxion obtains subelement, for obtaining the fluxion for belonging to each UE of second transmitting node；
User equipment to be matched chooses subelement, for choosing the UE to be matched for belonging to second transmitting node；
Judgment sub-unit, for judging the UE to be matched when the fluxion of the UE to be matched is equal with first fluxion
Pre-coding matrix indicated value it is whether same or similar with the indicated value of pre-coding matrix of the first UE；
Second user equipment chooses subelement, for when the judging result of the judgment sub-unit, which is, is, choose it is described to
With UE.
14. system according to claim 11, which is characterized in that the user equipment selection unit, comprising:
Descending transmission channel information receiving subelement belongs to second hair for receive that second transmitting node sends
Penetrate the descending transmission channel information of each UE of node；
The descending transmission channel information of each UE is to carry out channel status to each UE by second transmitting node
What information measurement obtained.
15. the described in any item systems of 0-14 according to claim 1, which is characterized in that the resource allocation information obtains module,
Include:
Resource allocation information acquiring unit, for obtaining time-domain resource information, frequency domain resource information or the code domain of the 2nd UE
Resource information.
16. the described in any item systems of 0-14 according to claim 1, which is characterized in that the resource distribution module, comprising:
First resource allocation unit, for for the first UE distribute the first subframe position, first subframe position with it is described
Second transmitting node is that the second subframe position of the 2nd UE distribution is different；
Wherein, when first subframe position is for indicating that first transmitting node and the first UE carry out air interface transmission,
The position of the subframe numbers used in the time domain；Second subframe position is for indicating second transmitting node and described second
When UE carries out air interface transmission, the position of the subframe numbers used in the time domain.
17. the described in any item systems of 0-14 according to claim 1, which is characterized in that the resource distribution module, comprising:
Secondary resource allocation unit, for for the first UE distribute the first subband indicated value, the first subband indicated value with
Second transmitting node is that the second subband indicated value of the 2nd UE distribution is different；
Wherein, the first subband indicated value is for indicating that first transmitting node and the first UE carry out air interface transmission
When, the indicated value of the subband used on frequency domain；The second subband indicated value for indicate second transmitting node with it is described
When 2nd UE carries out air interface transmission, the indicated value of the subband used on frequency domain.
18. the described in any item systems of 0-14 according to claim 1, which is characterized in that the resource distribution module, comprising:
Information resources allocation unit, for spreading code word indicated value for the first UE distribution first,
The first spread spectrum code word indicated value refers to the second spread spectrum code word that second transmitting node is the 2nd UE distribution
Indicating value is different；
Wherein, the first spread spectrum code word indicated value is for indicating that first transmitting node carries out eating dishes without rice or wine to pass with the first UE
When defeated, the indicated value of the spread spectrum code word used in code domain；The second spread spectrum code word indicated value is for indicating second transmitting
When node and the 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word used in code domain.
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| WO2018170673A1 (en) * | 2017-03-20 | 2018-09-27 | Oppo广东移动通信有限公司 | Method for transmitting data, terminal device and network device |
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| CN101854638A (en) * | 2009-03-30 | 2010-10-06 | 中兴通讯股份有限公司 | Resource block grouping and beam forming method and device |
| CN102065434A (en) * | 2011-01-06 | 2011-05-18 | 中兴通讯股份有限公司 | Coordinating method and device of downlink multi-base-station multi-input multi-output precoding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854638A (en) * | 2009-03-30 | 2010-10-06 | 中兴通讯股份有限公司 | Resource block grouping and beam forming method and device |
| CN102065434A (en) * | 2011-01-06 | 2011-05-18 | 中兴通讯股份有限公司 | Coordinating method and device of downlink multi-base-station multi-input multi-output precoding |
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