CN104301898A - Resource allocation method and system - Google Patents
Resource allocation method and system Download PDFInfo
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- CN104301898A CN104301898A CN201310306814.3A CN201310306814A CN104301898A CN 104301898 A CN104301898 A CN 104301898A CN 201310306814 A CN201310306814 A CN 201310306814A CN 104301898 A CN104301898 A CN 104301898A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
Abstract
The invention provides a resource allocation method and system. The method is applied to a wireless communication system of co-frequency network. The method comprises that a first emission node determines second UE, the direction of the second UE is identical with or similar to that of down wave beams of first UE, the first UE belongs to the first emission node, the second UE belongs to a second emission node, and the down wave beams of first UE are from a down emission link from the second emission node to the first UE; resource allocation information of the second UE is obtained; and according to the resource allocation information, a first resource is allocated for the first UE, the second emission node allocates a second resource for the second UE, and the second resource is different from the first resource. The method and system can solve the problem that UE in a CRE area is interfered.
Description
Technical field
The application relates to moving communicating field, particularly relates to a kind of resource allocation methods and system.
Background technology
With LTE(Long Term Evolution Long Term Evolution) for representative the 4th generation cell mobile communication systems, relative to third generation mobile communication systems, drastically increase transmission rate and the efficiency of transmission of mobile communication system.In LTE system, a kind of networking mode is had to be that the neighbor cell making the LTE system of certain area cover uses identical frequency.The networking mode in region is called identical networking in this section.
Under the condition of identical networking, because the frequency of each community is identical, so can co-channel interference be produced between adjacent community.In order to solve the problem of co-channel interference lower network limited performance, in prior art, have employed the networking mode of isomery.Heterogeneous network comprises macro station (Macro) and micro-station (Pico).Wherein, micro-station is low power transmissions node (Low Power Node, LPN).The transmitting power at micro-station is less than the transmitting power of macro station.Heterogeneous network increases multiple low power micro-station by the hot spot region under the macro station that coverage is larger, greatly can improve the transmittability of hot zones.
Concrete, in the heterogeneous network under the condition of identical networking, in the coverage of macro station, be provided with micro-station.When the subscriber equipment (User Equipment, UE) of macro station service is a lot, even close to time saturated, the coverage of micro-standing-meeting expansion self, is adsorbed onto the UE exceeding macro station service ability on micro-station, by micro-station for above-mentioned UE provides service.This method can improve UE quantity serviced in the coverage of macro station, thus improves the service ability of network.
In prior art, expand the mode of micro-station coverage mainly, base station (comprising macro station or micro-station) receives the transmitted reference signal received power (Reference Signal Received Power, RSRP) that UE reports.Base station is when doing handover decisions, the actual value of the RSRP from micro-station received increases an offset Δ and obtains RSRP2, RSRP2 and the RSRP1 not comprising side-play amount from macro station compare by base station, and then UE just can be switched to the larger website of RSRP value by base station.
Before supposing to expand the coverage at micro-station, the coverage at micro-station is A, and after expanding the coverage at micro-station, the coverage at micro-station is B, then the difference range of B and A is called CRE(Cell Range Expansion, cell extension region).UE in CRE, belongs to micro-station, but the signal power at the actual micro-station received of this UE, can than from the low value of aforesaid offset Δ of the signal power of macro station.And in CRE, the signal of macro station is equivalent to interference signal, so now, the UE in CRE cannot obtain the communication service of normal quality.
Summary of the invention
The object of the application is to provide a kind of resource allocation methods and system, can, by carrying out rational Resourse Distribute to UE, solve under heterogeneous network, macro station and micro-ly stand in the problem that in cell edge or CRE region, UE is interfered.
For achieving the above object, this application provides following scheme:
According to the first possible implementation of the first aspect of the application, the application provides a kind of resource allocation methods, and described method is applied to the wireless communication system of identical networking, and described method comprises:
First transmitting node determines two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Obtain the resource allocation information of described 2nd UE;
According to described resource allocation information, for a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In conjunction with the implementation that the second of first aspect is possible, describedly determine two UE identical or close with the downlink reception beam direction of a UE, comprising:
At the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE;
Wherein, the descending transmission channel information of a described UE is carried out channel condition information measurement by described second transmitting node to a described UE and is obtained.
In conjunction with the first specific implementation of the possible implementation of the second of first aspect, described in choose the UE with a described UE with identical or close descending transmission channel information, comprising:
Obtain the first downlink precoding matrix of a described UE;
Obtain the downlink precoding matrix belonging to each UE of described second transmitting node, obtain downlink precoding set of matrices;
From described downlink precoding set of matrices, search the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
Choose the UE that described second downlink precoding matrix is corresponding.
In conjunction with the second specific implementation of the possible implementation of the second of first aspect, described in choose the UE with a described UE with identical or close descending transmission channel information, comprising:
Obtain first fluxion of a described UE;
Obtain the fluxion belonging to each UE of described second transmitting node;
Choose the UE to be matched that belongs to described second transmitting node;
When the fluxion of described UE to be matched is equal with described first fluxion, judge that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
If so, then described UE to be matched is chosen.
In conjunction with the third specific implementation of the possible implementation of the second of first aspect, belong to the obtain manner of the descending transmission channel information of each UE of described second transmitting node, comprising:
Receive the descending transmission channel information belonging to each UE of described second transmitting node that described second transmitting node sends;
The descending transmission channel information of each UE described is carried out channel condition information measurement by described second transmitting node to each UE described and is obtained.
In conjunction with any one in five kinds of first aspect possible implementations, the resource allocation information of described 2nd UE of described acquisition, comprising:
Obtain the time-domain resource information of described 2nd UE, frequency domain resource information or code domain resource information.
In conjunction with any one in five kinds of first aspect possible implementations, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first subframe position, described first subframe position and described second transmitting node are that the second subframe position that described 2nd UE distributes is different;
Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
In conjunction with any one in five kinds of first aspect possible implementations, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first subband indicated value, described first subband indicated value and described second transmitting node are that the second subband indicated value that described 2nd UE distributes is different;
Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
In conjunction with any one in five kinds of first aspect possible implementations, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first spread spectrum code word indicated value, described first spread spectrum code word indicated value and described second transmitting node are that the second spread spectrum code word indicated value that described 2nd UE distributes is different;
Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
According to the first possible implementation of the second aspect of the application, the application provides a kind of resource allocation system, and described system comprises:
Subscriber equipment determination module, for determining two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Resource allocation information acquisition module, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In conjunction with the implementation that the second of second aspect is possible, described subscriber equipment determination module, comprising:
Unit chosen by subscriber equipment, at the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE;
Wherein, the descending transmission channel information of a described UE is carried out channel condition information measurement by described second transmitting node to a described UE and is obtained.
In conjunction with the first concrete implementation of the possible implementation of the second of second aspect, unit chosen by described subscriber equipment, comprising:
First downlink precoding matrix obtains subelement, for obtaining the first downlink precoding matrix of a described UE;
Downlink precoding set of matrices obtains subelement, for obtaining the downlink precoding matrix of each UE belonging to described second transmitting node, obtains downlink precoding set of matrices;
Second downlink precoding matrix searches subelement, for from described downlink precoding set of matrices, searches the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
First user equipment chooses subelement, for choosing UE corresponding to described second downlink precoding matrix.
In conjunction with the implementation that the second of the possible implementation of the second of second aspect is concrete, unit chosen by described subscriber equipment, comprising:
First fluxion acquiring unit, for obtaining first fluxion of a described UE;
Second fluxion obtains subelement, for obtaining the fluxion of each UE belonging to described second transmitting node;
Subelement chosen by subscriber equipment to be matched, for choosing the UE to be matched that belongs to described second transmitting node;
Judgment sub-unit, for when the fluxion of described UE to be matched is equal with described first fluxion, judges that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
Subelement chosen by second subscriber equipment, for when the judged result of described judgment sub-unit is for being, chooses described UE to be matched.
In conjunction with the third concrete implementation of the possible implementation of the second of second aspect, unit chosen by described subscriber equipment, comprising:
Descending transmission channel receives information subelement, for receiving the descending transmission channel information belonging to each UE of described second transmitting node that described second transmitting node sends;
The descending transmission channel information of each UE described is carried out channel condition information measurement by described second transmitting node to each UE described and is obtained.
In conjunction with any one in five kinds of second aspect possible implementations, described resource allocation information acquisition module, comprising:
Resource allocation information acquiring unit, for obtaining the time-domain resource information of described 2nd UE, frequency domain resource information or code domain resource information.
In conjunction with any one in five kinds of second aspect possible implementations, described resource distribution module, comprising:
First resource allocation units, for distributing the first subframe position for a described UE, described first subframe position and described second transmitting node are that the second subframe position that described 2nd UE distributes is different;
Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
In conjunction with any one in five kinds of second aspect possible implementations, described resource distribution module, comprising:
Secondary resource allocation units, for distributing the first subband indicated value for a described UE, described first subband indicated value and described second transmitting node are that the second subband indicated value that described 2nd UE distributes is different;
Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
In conjunction with any one in five kinds of second aspect possible implementations, described resource distribution module, comprising:
Information resources allocation units, for distributing the first spread spectrum code word indicated value for a described UE, described first spread spectrum code word indicated value and described second transmitting node are that the second spread spectrum code word indicated value that described 2nd UE distributes is different;
Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
According to the specific embodiment that the application provides, this application discloses following technique effect:
Resource allocation methods disclosed in the present application or system, by determining two UE identical or close with the downlink reception beam direction of a UE, obtain the resource allocation information of described 2nd UE; According to described resource allocation information, for a described UE distributes first resource, first resource is different from the Secondary resource of described 2nd UE, the interference that the wireless signal that the second transmitting node can be avoided to launch on described beam direction causes a UE, thus the problem solving that in edge, micro-station or CRE region, UE is interfered.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying 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 computing node of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
For enabling above-mentioned purpose, the feature and advantage of the application more become apparent, below in conjunction with the drawings and specific embodiments, the application is described in further detail.
The resource allocation methods of the application, is mainly used in the wireless communication system of identical networking.Described wireless communication system can be the wireless communication system comprising micro-station and macro station.The executive agent of the resource allocation methods of the application can be micro-station, also can be macro station.
Fig. 1 is the flow chart of the resource allocation methods embodiment 1 of the application.As shown in Figure 1, described method can comprise:
Step 101: the first transmitting node determines two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Step 102: the resource allocation information obtaining described 2nd UE;
Step 103: according to described resource allocation information, for a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In step 101, described first transmitting node can be micro-station, also can be macro station.When described first transmitting node is micro-station, described second transmitting node is then macro station; When described first transmitting node is macro station, described first transmitting node is then micro-station.
Downlink reception wave beam typically refers to the wireless signal that transmitting node sends to UE.In cell mobile communication systems, downlink reception wave beam is directive.
In the present embodiment, the downlink reception wave beam of a UE is from the downlink link of described second transmitting node to a described UE, and that is the downlink reception wave beam of a UE is that the second transmitting node sends to a UE.The downlink reception wave beam of the 2nd UE is that the second transmitting node sends to the 2nd UE.The downlink reception wave beam of two UE is from same transmitting node.
Inventor finds through research, and when the downlink reception beam direction of two UE is identical or close, a UE has identical or close descending transmission channel information with the 2nd UE.Therefore, can at the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE.
Wherein, a UE is arranged in edge, micro-station or CRE.The descending transmission channel information of a described UE can be carried out downlink channel condition information (Channel State Information, CSI) measurement by described second transmitting node to a described UE and be obtained.Described descending transmission channel information can comprise: order instruction (Rank Indicator, RI), pre-coding matrix instruction (Precoding matrix indicator, PMI), channel quality instruction (Channel Quality Indicator, CQI) etc.
The obtain manner of the descending transmission channel information of a described UE may also be: first carry out to a described UE uplink channel status information that uplink channel status information measurement obtains a described UE by described second transmitting node, again according to the reciprocity of channel, determine the descending transmission channel information of a UE.The reciprocity of channel refers to, the pre-coding matrix Hu of up channel is identical with the transposition of down channel pre-coding matrix Hd.
Also it should be noted that, the 2nd UE can be multiple, and a UE also can be multiple.
In step 102, obtain the resource allocation information of described 2nd UE, can comprise: obtain the time-domain resource information of described 2nd UE, frequency domain resource information or code domain resource information.
According to the resource allocation information of the 2nd UE got in step 102, in step 103, the first resource that can distribute for a described UE comprises: time-domain resource, frequency domain resource or code domain resource.
Concrete, when getting the time-domain resource information of the 2nd UE, can learn that the second transmitting node is the second subframe position that described 2nd UE distributes, the first subframe position can be distributed for a described UE accordingly.As long as the first subframe position is different from the second subframe position.Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
When getting the frequency domain resource information of the 2nd UE, can learn that the second transmitting node is the second subband indicated value that described 2nd UE distributes, the first subband indicated value can be distributed for a described UE accordingly.First subband indicated value is different from the second subband indicated value.Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
When getting the code domain resource information of the 2nd UE, can learn that the second transmitting node is the second spread spectrum code word indicated value that described 2nd UE distributes.The first spread spectrum code word indicated value can be distributed accordingly for a described UE.First spread spectrum code word indicated value is different from the second spread spectrum code word indicated value.Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
Below the principle of the present embodiment is described.Inventor finds through research, and why the UE being arranged in edge, micro-station or CRE can be interfered, and is because the second transmitting node also sends wireless signal on the direction of a UE.Originally should receive a UE of the wireless signal of the first transmitting node, after the same frequency reception of synchronization to the wireless signal of the second transmitting node, the interference of the second transmitting node will be subject to.Therefore, can by determining the downlink reception beam direction between the second transmitting node and a UE, on described beam direction, the first transmitting node is made to be the resource that a UE distributes, be that the resource that the 2nd UE distributes is orthogonal on described beam direction with the second transmitting node, the interference that the wireless signal that the second transmitting node just can be avoided to launch on described beam direction causes a UE.
Wherein, the first transmitting node is the resource that a UE distributes, and be the resource that the 2nd UE distributes on described beam direction with the second transmitting node, both are orthogonal, refers to both different in time domain, frequency domain or code domain.Different in time domain, then both are not wireless signals in the same time; Different on frequency domain, then both are wireless signals of different frequency; Different in code domain, then both are wireless signals of different coding; The interference that the wireless signal that above-mentioned three kinds of situations all can avoid the second transmitting node to launch on described beam direction causes a UE.
In sum, the resource allocation methods of the present embodiment, by determining two UE identical or close with the downlink reception beam direction of a UE, obtains the resource allocation information of described 2nd UE; According to described resource allocation information, for a described UE distributes first resource, first resource is different from the Secondary resource of described 2nd UE, the interference that the wireless signal that the second transmitting node can be avoided to launch on described beam direction causes a UE, thus the problem solving that in edge, micro-station or CRE region, UE is interfered.
Fig. 2 is the flow chart of the resource allocation methods embodiment 2 of the application.In the present embodiment, be described using micro-station as executive agent.Namely the first transmitting node is micro-station, and the second transmitting node is macro station.As shown in Figure 2, described method can comprise:
Step 201: the first downlink precoding matrix obtaining a described UE;
In this step, the first downlink precoding matrix of a described UE is that a UE self carries out channel condition information measurement according to macro station to the reference signal that a described UE sends and obtains.Measurement result can be sent to micro-station by macro station.Also can arrange a UE, make a UE that measurement result is directly sent to micro-station.
Wherein, include multiple vector in pre-coding matrix, these vectors may be used for characterizing the downlink reception beam direction between macro station and UE.
Step 202: obtain the downlink precoding matrix belonging to each UE of described second transmitting node, obtain downlink precoding set of matrices;
In this step, the descending transmission channel information of each UE described is also carried out channel condition information measurement by macro station to each UE described and is obtained.Measurement result can be sent to micro-station by macro station.Also can arrange each UE, make each UE that measurement result is directly sent to micro-station.
Step 203: from described downlink precoding set of matrices, searches the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
Whether at least one row precoding vector at least one row precoding vector in described second downlink precoding matrix and described first downlink precoding matrix is close, specifically following manner analysis can be adopted: according to two row precoding vectors, the angle between two column vectors can be calculated, compare with the minimum identifiable design angle (angular resolution) of described angle and macro station antenna (i.e. the second transmitting node).If described angle is less than or equal to described minimum identifiable design angle, then think that two column vectors are close, and then can determine that the downlink reception beam direction of the UE that above-mentioned two column vectors are corresponding and the 2nd UE is close.
Step 204: choose the UE that described second downlink precoding matrix is corresponding.
Described second downlink precoding matrix can be multiple, and each described second downlink precoding matrix is corresponding with a UE.
Step 205: the resource allocation information obtaining described 2nd UE;
Step 206: according to described resource allocation information, for a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In the present embodiment, in step 205, obtain the mode of the resource allocation information of the 2nd UE, and be the mode that a described UE distributes first resource in step 206, can be identical with the mode in embodiment 1, repeat no more herein.
Fig. 3 is the flow chart of the resource allocation methods embodiment 3 of the application.In the present embodiment, be described using macro station as executive agent.Namely the first transmitting node is macro station, and the second transmitting node is micro-station.As shown in Figure 3, described method can comprise:
Step 301: the first fluxion obtaining a described UE;
In LTE system, UE can have multiple antenna, and each antenna can send different data flow simultaneously.The number of the data flow that UE uses different antennas to send, is called fluxion.Such as, UE adopts two antennas to send two different data flow, then the maximum fluxion of this UE is 2.
First fluxion of the one UE, can carry out to a UE RI value that channel condition information measurement obtains according to the second transmitting node and obtain.
Step 302: obtain the fluxion belonging to each UE of described second transmitting node;
In this step, the RI value also can carrying out to each UE described each UE that channel condition information measurement obtains according to described second transmitting node, gets the fluxion of each UE.
Step 303: choose the UE to be matched that belongs to described second transmitting node;
The UE belonging to described second transmitting node is UE to be matched.The UE to be matched belonging to described second transmitting node all can selectedly get.
Step 304: when the fluxion of described UE to be matched is equal with described first fluxion, judges that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
In LTE system, pre-coding matrix can identify by different sequence numbers.This sequence number is called the indicated value (Precoding matrix indicator, PMI) of pre-coding matrix.When fluxion is identical, PMI is identical, then represent that corresponding pre-coding 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 judged result is for being, then choose described UE to be matched.
The UE described to be matched chosen in step 305 is described 2nd UE.
Step 306: the resource allocation information obtaining described 2nd UE;
Step 307: according to described resource allocation information, for a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In the present embodiment, in step 306, obtain the mode of the resource allocation information of the 2nd UE, and be the mode that a described UE distributes first resource in step 307, also can be identical with the mode in embodiment 1, repeat no more herein.
It should be noted that, in the present embodiment, when the fluxion of described UE to be matched is equal with described first fluxion, judge that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value (PMI is positive integer) of the pre-coding matrix of a described UE; And whether the column vector need not analyzed in two different pre-coding matrixes is identical or close, can simplify in the resource allocation methods of the application, for the deterministic process whether the descending transmission channel information of two UE is identical or close, improve the efficiency of the resource allocation methods of the application.
Present invention also provides a kind of resource allocation system.Fig. 4 is the structure chart of the resource allocation system embodiment 1 of the application.As shown in Figure 4, described system can comprise:
Subscriber equipment determination module 401, for determining two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Resource allocation information acquisition module 402, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module 403, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
Described subscriber equipment determination module 401, can comprise:
Unit chosen by subscriber equipment, at the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE;
Wherein, the descending transmission channel information of a described UE is carried out channel condition information measurement by described second transmitting node to a described UE and is obtained.
Unit chosen by described subscriber equipment, can comprise:
Descending transmission channel receives information subelement, for receiving the descending transmission channel information belonging to each UE of described second transmitting node that described second transmitting node sends;
The descending transmission channel information of each UE described is carried out channel condition information measurement by described second transmitting node to each UE described and is obtained.
Described resource distribution module 403, can comprise:
First resource allocation units, for distributing the first subframe position for a described UE, described first subframe position and described second transmitting node are that the second subframe position that described 2nd UE distributes is different;
Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
And/or, Secondary resource allocation units, for distributing the first subband indicated value for a described UE, described first subband indicated value and described second transmitting node are that the second subband indicated value that described 2nd UE distributes is different;
Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
And/or, information resources allocation units, for distributing the first spread spectrum code word indicated value for a described UE, described first spread spectrum code word indicated value and described second transmitting node are that the second spread spectrum code word indicated value that described 2nd UE distributes is different;
Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
The resource allocation system of the present embodiment, by determining two UE identical or close with the downlink reception beam direction of a UE, obtains the resource allocation information of described 2nd UE; According to described resource allocation information, for a described UE distributes first resource, first resource is different from the Secondary resource of described 2nd UE, the interference that the wireless signal that the second transmitting node can be avoided to launch on described beam direction causes a UE, thus the problem solving that in CRE region, UE is interfered.
Fig. 5 is the structure chart of the resource allocation system embodiment 2 of the application.As shown in Figure 5, described system can comprise:
First downlink precoding matrix obtains subelement 501, for obtaining the first downlink precoding matrix of a described UE;
Downlink precoding set of matrices obtains subelement 502, for obtaining the downlink precoding matrix of each UE belonging to described second transmitting node, obtains downlink precoding set of matrices;
Second downlink precoding matrix searches subelement 503, for from described downlink precoding set of matrices, searches the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
First user equipment chooses subelement 504, for choosing UE corresponding to described second downlink precoding matrix.
The UE that described second downlink precoding matrix after choosing is corresponding is described 2nd UE.
Resource allocation information acquisition module 402, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module 403, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
Fig. 6 is the structure chart of the resource allocation system embodiment 3 of the application.As shown in Figure 6, described system can comprise:
First fluxion acquiring unit 601, for obtaining first fluxion of a described UE;
Second fluxion obtains subelement 602, for obtaining the fluxion of each UE belonging to described second transmitting node;
Subelement 603 chosen by subscriber equipment to be matched, for choosing the UE to be matched that belongs to described second transmitting node;
Judgment sub-unit 604, for when the fluxion of described UE to be matched is equal with described first fluxion, judges that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
Subelement 605 chosen by second subscriber equipment, for when the judged result of described judgment sub-unit 604 is for being, chooses described UE to be matched.
UE described to be matched after choosing is described 2nd UE.
Resource allocation information acquisition module 402, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module 403, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In addition, the embodiment of the present application additionally provides a kind of computing node, computing node may be the host server comprising computing capability, or personal computer PC, or portable portable computer or terminal etc., the application's specific embodiment does not limit the specific implementation of computing node.
Fig. 7 is the structure chart of the computing node of the application.As shown in Figure 7, computing node 700 comprises:
Processor (processor) 710, communication interface (Communications Interface) 720, memory (memory) 730, bus 740.
Processor 710, communication interface 720, memory 730 completes mutual communication by bus 740.
Processor 710, for executive program 732.
Particularly, program 732 can comprise program code, and described program code comprises computer-managed instruction.
Processor 710 may be a central processor CPU, or specific integrated circuit ASIC(Application Specific Integrated Circuit), or be configured to the one or more integrated circuits implementing the embodiment of the present application.
Memory 730, for depositing program 732.Memory 730 may comprise high-speed RAM memory, still may comprise nonvolatile memory (non-volatile memory), such as at least one magnetic disc store.Program 732 specifically can comprise:
Subscriber equipment determination module 401, for determining two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Resource allocation information acquisition module 402, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module 403, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
In program 732, the specific implementation of each module is see the corresponding module in Fig. 4-embodiment illustrated in fig. 6 or unit, is not repeated herein.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add required hardware platform by software and realize, can certainly all be implemented by hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, what the technical scheme of the application contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the application or embodiment.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Apply specific case herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications.In sum, this description should not be construed as the restriction to the application.
Claims (18)
1. a resource allocation methods, is characterized in that, described method is applied to the wireless communication system of identical networking, and described method comprises:
First transmitting node determines two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Obtain the resource allocation information of described 2nd UE;
According to described resource allocation information, for a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
2. method according to claim 1, is characterized in that, describedly determines two UE identical or close with the downlink reception beam direction of a UE, comprising:
At the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE;
Wherein, the descending transmission channel information of a described UE is carried out channel condition information measurement by described second transmitting node to a described UE and is obtained.
3. method according to claim 2, is characterized in that, described in choose the UE with a described UE with identical or close descending transmission channel information, comprising:
Obtain the first downlink precoding matrix of a described UE;
Obtain the downlink precoding matrix belonging to each UE of described second transmitting node, obtain downlink precoding set of matrices;
From described downlink precoding set of matrices, search the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
Choose the UE that described second downlink precoding matrix is corresponding.
4. method according to claim 2, is characterized in that, described in choose the UE with a described UE with identical or close descending transmission channel information, comprising:
Obtain first fluxion of a described UE;
Obtain the fluxion belonging to each UE of described second transmitting node;
Choose the UE to be matched that belongs to described second transmitting node;
When the fluxion of described UE to be matched is equal with described first fluxion, judge that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
If so, then described UE to be matched is chosen.
5. method according to claim 2, is characterized in that, belongs to the obtain manner of the descending transmission channel information of each UE of described second transmitting node, comprising:
Receive the descending transmission channel information belonging to each UE of described second transmitting node that described second transmitting node sends;
The descending transmission channel information of each UE described is carried out channel condition information measurement by described second transmitting node to each UE described and is obtained.
6. the method according to any one of claim 1-5, is characterized in that, the resource allocation information of described 2nd UE of described acquisition, comprising:
Obtain the time-domain resource information of described 2nd UE, frequency domain resource information or code domain resource information.
7. the method according to any one of claim 1-5, is characterized in that, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first subframe position, described first subframe position and described second transmitting node are that the second subframe position that described 2nd UE distributes is different;
Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
8. the method according to any one of claim 1-5, is characterized in that, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first subband indicated value, described first subband indicated value and described second transmitting node are that the second subband indicated value that described 2nd UE distributes is different;
Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
9. the method according to any one of claim 1-5, is characterized in that, described is that a described UE distributes first resource, comprising:
For a described UE distributes the first spread spectrum code word indicated value, described first spread spectrum code word indicated value and described second transmitting node are that the second spread spectrum code word indicated value that described 2nd UE distributes is different;
Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
10. a resource allocation system, is characterized in that, described system comprises:
Subscriber equipment determination module, for determining two UE identical or close with the downlink reception beam direction of a UE; Wherein, a described UE belongs to the first transmitting node, and described 2nd UE belongs to the second transmitting website; The downlink reception wave beam of a described UE is from the downlink link of described second transmitting node to a described UE;
Resource allocation information acquisition module, for obtaining the resource allocation information of described 2nd UE;
Resource distribution module, for according to described resource allocation information, be that a described UE distributes first resource, described first resource and described second transmitting node are that the Secondary resource that described 2nd UE distributes is different.
11. systems according to claim 10, is characterized in that, described subscriber equipment determination module, comprising:
Unit chosen by subscriber equipment, at the described UE that chooses and there is with a described UE identical or close descending transmission channel information of belonging in each UE of described second transmitting node as described 2nd UE;
Wherein, the descending transmission channel information of a described UE is carried out channel condition information measurement by described second transmitting node to a described UE and is obtained.
12. systems according to claim 11, is characterized in that, unit chosen by described subscriber equipment, comprising:
First downlink precoding matrix obtains subelement, for obtaining the first downlink precoding matrix of a described UE;
Downlink precoding set of matrices obtains subelement, for obtaining the downlink precoding matrix of each UE belonging to described second transmitting node, obtains downlink precoding set of matrices;
Second downlink precoding matrix searches subelement, for from described downlink precoding set of matrices, searches the second downlink precoding matrix matched with described first downlink precoding matrix; Described and described first downlink precoding matrix matches, and refers to that at least one row precoding vector in described second downlink precoding matrix is identical or close with at least one row precoding vector in described first downlink precoding matrix;
First user equipment chooses subelement, for choosing UE corresponding to described second downlink precoding matrix.
13. systems according to claim 11, is characterized in that, unit chosen by described subscriber equipment, comprising:
First fluxion acquiring unit, for obtaining first fluxion of a described UE;
Second fluxion obtains subelement, for obtaining the fluxion of each UE belonging to described second transmitting node;
Subelement chosen by subscriber equipment to be matched, for choosing the UE to be matched that belongs to described second transmitting node;
Judgment sub-unit, for when the fluxion of described UE to be matched is equal with described first fluxion, judges that whether the indicated value of the pre-coding matrix of described UE to be matched is identical or close with the indicated value of the pre-coding matrix of a described UE;
Subelement chosen by second subscriber equipment, for when the judged result of described judgment sub-unit is for being, chooses described UE to be matched.
14. systems according to claim 11, is characterized in that, unit chosen by described subscriber equipment, comprising:
Descending transmission channel receives information subelement, for receiving the descending transmission channel information belonging to each UE of described second transmitting node that described second transmitting node sends;
The descending transmission channel information of each UE described is carried out channel condition information measurement by described second transmitting node to each UE described and is obtained.
15. systems according to any one of claim 10-14, it is characterized in that, described resource allocation information acquisition module, comprising:
Resource allocation information acquiring unit, for obtaining the time-domain resource information of described 2nd UE, frequency domain resource information or code domain resource information.
16. systems according to any one of claim 10-14, it is characterized in that, described resource distribution module, comprising:
First resource allocation units, for distributing the first subframe position for a described UE, described first subframe position and described second transmitting node are that the second subframe position that described 2nd UE distributes is different;
Wherein, when described first subframe position is for representing that described first transmitting node and a described UE carry out air interface transmission, the position of the subframe numbers that time domain uses; When described second subframe position is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the position of the subframe numbers that time domain uses.
17. systems according to any one of claim 10-14, it is characterized in that, described resource distribution module, comprising:
Secondary resource allocation units, for distributing the first subband indicated value for a described UE, described first subband indicated value and described second transmitting node are that the second subband indicated value that described 2nd UE distributes is different;
Wherein, when described first subband indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the subband that frequency domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the subband that frequency domain uses.
18. systems according to any one of claim 10-14, it is characterized in that, described resource distribution module, comprising:
Information resources allocation units, for distributing the first spread spectrum code word indicated value for a described UE, described first spread spectrum code word indicated value and described second transmitting node are that the second spread spectrum code word indicated value that described 2nd UE distributes is different;
Wherein, when described first spread spectrum code word indicated value is for representing that described first transmitting node and a described UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses; When described second subband indicated value is for representing that described second transmitting node and described 2nd UE carry out air interface transmission, the indicated value of the spread spectrum code word that code domain uses.
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Effective date of registration: 20210421 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |