CN101640560A - Confirmation method of wave beam weight and device - Google Patents
Confirmation method of wave beam weight and device Download PDFInfo
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- CN101640560A CN101640560A CN200810144297A CN200810144297A CN101640560A CN 101640560 A CN101640560 A CN 101640560A CN 200810144297 A CN200810144297 A CN 200810144297A CN 200810144297 A CN200810144297 A CN 200810144297A CN 101640560 A CN101640560 A CN 101640560A
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Abstract
The invention discloses a confirmation method of wave beam weight and a device. The method comprises confirming a plurality of coordination nodes; and respectively confirming the wave beam weight of each coordination node in the plurality of coordination nodes according to the network topology structure of the plurality of coordination nodes. In the invention, the wave beam weight of each coordination node can be confirmed by using the network topology relation of the plurality of coordination nodes in no need of channel information feedback by a user, thus reducing channel expenditure and avoiding quantification error generated by channel quantification.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of confirmation method of wave beam weight and device.
Background technology
At present, no matter the multipath selectivity decline that becomes when the principal element that influences Reliability of Wireless Communication is still, is the reliability that improves wireless channel, still reduces the error rate of multidiameter fading channel, all is difficult, for example, and for reaching 10
-2Or 10
-3Bit error probability (BitError Rate, abbreviate BER as), at no multipath white Gaussian noise (Additive WhiteGaussian Noise, abbreviate AWGN as) in the channel, the signal to noise ratio that may need 1dB or 2dB, and in multipath fading environments, reach the error rate of same magnitude, may need the SNR of 10dB.
A kind of technology that can effectively reduce the influence of multipath fading is the signal diversifying technology, and it is by merging the influence that reduces fading channel from the signal of different fading channels.In space diversity scheme, by introducing the effect that many transmit antennas obtain diversity, but need antenna distance must reach certain distance at transmit leg and/or recipient, different antennae can form separate channel like this.
Multiple-input and multiple-output (Multiple Input Out-put, abbreviating MIMO as) to form (beamforming) technology be effectively to improve two kinds of aerial array treatment technologies of channel capacity and wireless network performance for technology and wave beam, mainly comprise orthogonal space time packet (Orthogonal Space Time Block Codes at present, abbreviate OSTBC as), space-time block code (Space Time Trellis Codes, abbreviate STTC as), precoding (precoding), beamforming technology such as (wave beam formation).
Because capacity and the dimension that depends on bay of performance strictness and the correlation between antenna of mimo system, therefore many antennas and multi-antenna array have important function to improving power system capacity and performance, but in actual applications, the application of many antennas is subjected to the restriction of expense and physics restriction.
The collaboration MIMO technology of minizone can be under the situation that does not increase antenna amount and antenna distance, increases the quantity of antenna by the cooperation between a plurality of sub-districts, and for example, the antenna of two or more base stations is used for the MIMO emission jointly or receives.Multi-cell cooperating MIMO technology has advantage at the throughput and the aspect of performance that improve Cell Edge User.
At present, in multi-cell cooperating beamforming, mainly utilizing following two kinds of methods to carry out beamforming handles, the one, by control unit information data is carried out many antenna processing, and the signal that handled on each road is sent to cooperation cell carry out beamforming, the 2nd, each cooperation cell is carried out many antenna processing to information data separately, and beamforming is carried out on certain road handle, but in above-mentioned two kinds of methods, the wave beam weight of beamforming all is to obtain by the channel information that the contracted user feeds back, can increase the channel overhead that channel feedback is brought like this, easily produce the quantization error that channel quantitative is caused.
Summary of the invention
Consider that the channel overhead that causes when having standing wave beam weight really in the correlation technique reaches the problem of quantization error more greatly and proposes the present invention, for this reason, main purpose of the present invention is to provide a kind of confirmation method of wave beam weight and device, to address the above problem.
According to an aspect of the present invention, provide a kind of confirmation method of wave beam weight.
Confirmation method of wave beam weight according to the present invention comprises: determine a plurality of cooperative nodes; Determine the wave beam weight of each cooperative node in a plurality of cooperative nodes respectively according to the network topology structure of a plurality of cooperative nodes.
Wherein, determine that the processing of a plurality of cooperative nodes is specially:, select to satisfy the node of pre-provisioning request as a plurality of cooperative nodes according to the metrical information of targeted customer's feedback.
Metrical information be the node that measures in advance of targeted customer under the situation of targeted customer's power, the node that satisfies pre-provisioning request to targeted customer's power in all measured node is defined as cooperative node;
In metrical information is under the situation of the channel condition information that measures in advance of targeted customer, and the pairing node of the channel condition information that satisfies pre-provisioning request of targeted customer's feedback is defined as cooperative node;
In metrical information is under the situation of the channel quality information that measures in advance of targeted customer, and the node that satisfies pre-provisioning request to targeted customer's channel quality in all measured node is defined as cooperative node.
Wherein, utilizing metrical information to determine in the cooperative node process, under the situation of load greater than predetermined threshold of the cooperative node of determining, this cooperative node is being removed from a plurality of cooperative nodes of determining.
Preferably, determine respectively that according to the network topology structure of a plurality of cooperative nodes the processing of the wave beam weight of each cooperative node in a plurality of cooperative nodes is specially: according to the network topology structure of a plurality of cooperative nodes, estimation targeted customer's position; The position relation of targeted customer with respect to each cooperative node determined in the targeted customer's who obtains according to estimation position; Determine the wave beam weight of each cooperative node with respect to the position relation of each cooperative node according to the targeted customer.
In addition, the wave beam weight of determining each cooperative node in a plurality of cooperative nodes according to network topology respectively also comprises: after being estimated to targeted customer's position according to network topology structure and metrical information, obtain the position relation of targeted customer with respect to each cooperative node; Position relation according to targeted customer and each cooperative node, select design factor to calculate the wave beam weight of current cooperative node, wherein, whether design factor is adjusted with other targeted customers are multiplexing according to the load information or the cooperative node of network topology relation or cooperative node.
Wherein, network topology structure according to a plurality of cooperative nodes, estimation targeted customer's the processing of position is specially: according to the metrical information estimation targeted customer of targeted customer's the feedback distance to cooperative node, and utilize distance and network topology structure to estimate targeted customer's position, wherein, metrical information comprises one of following at least: the cooperative node that the targeted customer measures in advance is to targeted customer's power, the channel quality information that the targeted customer measures in advance, the channel condition information that the targeted customer measures in advance.
Preferably, after the wave beam weight according to each cooperative node in the definite respectively a plurality of cooperative nodes in targeted customer's position, method also comprises: according to metrical information, adjust the wave beam weight of cooperative node, wherein, metrical information comprises one of following at least: the cooperative node that the targeted customer measures in advance is to targeted customer's power, the channel quality information that the targeted customer measures in advance, the channel condition information that the targeted customer measures in advance; And/or according to the load-factor of cooperative node, adjust the beam property of cooperative node, wherein, beam property comprise following one of at least: beamwidth, beam angle, beam gain.
Wherein, cooperative node comprises one of following: sub-district, base station, relay station, remote radio unit (RRU).
According to an aspect of the present invention, provide a kind of confirmation method of wave beam weight.
Confirmation method of wave beam weight according to the present invention comprises: determine a plurality of cooperative nodes; For each cooperative node in a plurality of cooperative nodes, set in advance corresponding beam vector group respectively; For each cooperative node in a plurality of cooperative nodes, according to selecting a beam vector of coupling the most in the beam vector group of this cooperative node of position of targeted customer, and the data of this cooperative node are weighted emission with the beam vector of selection.
Preferably, under the quantity to the beam vector group of each cooperative node setting is a plurality of situation, further comprise: according to the character of cooperative node, from a plurality of beam vector groups, select the beam vector group of a beam vector group as current cooperative node, wherein, character comprises one of following at least: whether the load information of network topology structure, cooperative node, cooperative node be multiplexing with other targeted customers.
A kind of definite device of wave beam weight is provided according to an aspect of the present invention.
Definite device according to wave beam weight of the present invention comprises: first determination module is used for determining a plurality of cooperative nodes; Second determination module is used for determining respectively according to a plurality of cooperative node zone network topological structures the wave beam weight of a plurality of each cooperative node of cooperative node.
Wherein, second determination module also comprises: first determines submodule, is used for the network topology structure according to a plurality of cooperative nodes, estimation targeted customer's position; Second determines submodule, is used for the targeted customer's that obtains according to estimation position, determines the position relation of targeted customer with respect to each cooperative node; The 3rd determines submodule, is used for determining with respect to the position relation of each cooperative node according to the targeted customer wave beam weight of each cooperative node.
A kind of definite device of wave beam weight is provided according to an aspect of the present invention.
Definite device according to wave beam weight of the present invention comprises: determination module is used for determining a plurality of cooperative nodes; Module is set, is used for each cooperative node of a plurality of cooperative nodes is provided with corresponding beam vector group respectively; Transmitter module is used for each cooperative node for a plurality of cooperative nodes, selects the most a beam vector of coupling according to targeted customer's position from the beam vector group, and with the beam vector of selection the data of this cooperative node is weighted emission.
Wherein, module is set specifically comprises: submodule is set, is used for each cooperative node is provided with a plurality of beam vector groups respectively; Select module, be used for character according to cooperative node, from a plurality of beam vector groups, select the beam vector group of a beam vector group as current cooperative node, wherein, character comprises one of following at least: whether network topology relation, the load information of cooperative node, cooperative node be multiplexing with other targeted customers.
By above-mentioned at least one technical scheme of the present invention, determine the wave beam weight of each cooperative node by the network topology relation of a plurality of cooperative nodes, do not need the user feedback channel information, can reduce channel overhead, can avoid the quantization error that produces by channel quantitative simultaneously.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the confirmation method of wave beam weight of the inventive method embodiment;
Fig. 2 is the detailed process flow chart of the confirmation method of wave beam weight of the example one according to the present invention;
Fig. 3 (a) is that the network topology according to the embodiment of the invention concerns schematic diagram;
Fig. 3 (b) is the schematic diagram according to the fixed beam direction indication of the embodiment of the invention;
Fig. 4 is the detailed process flow chart of the confirmation method of wave beam weight of the example two according to the present invention;
Fig. 5 is the detailed process flow chart of the confirmation method of wave beam weight of the example three according to the present invention;
Fig. 6 is the structured flowchart according to definite device of the wave beam weight of the embodiment of the invention;
Fig. 7 is the structured flowchart according to the preferred structure of definite device of the wave beam weight of the embodiment of the invention;
Fig. 8 is the structured flowchart according to definite device of the wave beam weight of the embodiment of the invention.
Fig. 9 is the structured flowchart according to the preferred structure of definite device of the wave beam weight of the embodiment of the invention.
Embodiment
Functional overview
In the present invention, provide a kind of scheme that is used for determining wave beam weight, its network topology by a plurality of cooperative nodes concerns to determine the wave beam weight of each cooperative node.Cooperative node of mentioning hereinafter or cooperative node can be sub-district (Cell), base station (BaseStation, abbreviate BS as), relay station, remote radio unit (RRU) (RRU) etc., main control unit can be radio network controller (Radio Network Controller abbreviates RNC as), base station controller (Base Station Controller) etc.
Method embodiment one
According to the embodiment of the invention, provide a kind of confirmation method of wave beam weight.Fig. 1 is the flow chart according to the confirmation method of wave beam weight of the embodiment of the invention, and as shown in Figure 1, this method may further comprise the steps:
Step S102 determines a plurality of cooperative nodes (with reference to cooperative node); In present communication network, user's (that is, above-mentioned described targeted customer) need carry out Feedback of Power to the base station, and based on this, the cooperative node of mentioning here refers to its cooperative node of feedback power in preset range from the user that receives;
Step S104 is according to the wave beam weight of each cooperative node in the definite respectively a plurality of cooperative nodes of a plurality of cooperative node zone network topological structures.
By the technical scheme that the embodiment of the invention provides, can determine the wave beam weight of each cooperative node by the network topology relation of a plurality of cooperative nodes.
Wherein, in step S102, can be according to the metrical information of targeted customer's feedback, the node of selecting to satisfy pre-provisioning request specifically comprises following three kinds of modes as a plurality of cooperative nodes:
Mode one, metrical information be the node that measures in advance of targeted customer under the situation of targeted customer's power, the node that satisfies pre-provisioning request to targeted customer's power in all measured node is defined as cooperative node;
Mode two is under the situation of the channel condition information that measures in advance of targeted customer in metrical information, and the pairing node of the channel condition information that satisfies pre-provisioning request of targeted customer's feedback is defined as cooperative node;
Mode three is under the situation of the channel quality information that measures in advance of targeted customer in metrical information, and the node that satisfies pre-provisioning request to targeted customer's channel quality in all measured node is defined as cooperative node.
Need explanation to be, utilizing metrical information to determine in the cooperative node process, under the situation of load greater than predetermined threshold of the cooperative node of determining, this cooperative node is removed from a plurality of cooperative nodes of determining.
For each cooperative node, according to the network topology structure of a plurality of cooperative nodes, estimation targeted customer's position; The position relation of targeted customer with respect to each cooperative node determined in the targeted customer's who obtains according to estimation position; Determine the wave beam weight of each cooperative node with respect to the position relation of each cooperative node according to the targeted customer, wherein, can determine the position angle of user according to user's position, afterwards, further determine the wave beam weight of cooperative node according to position angle with respect to cooperative node.
Particularly, can utilize following processing to determine the wave beam weight of each cooperative node: for each cooperative node, according to network topology structure, be estimated to targeted customer's position in conjunction with metrical information after, obtain the position relation of user with respect to each cooperative node, and according to the position of targeted customer and cooperative node relation, select design factor to calculate the wave beam weight of current cooperative node, wherein, can concern according to network topology, the load information of cooperative node, cooperative node whether with the multiplexing aforementioned calculation parameter of selecting of other targeted customers.
In addition, can utilize following processing estimation targeted customer's position: according to the metrical information estimation targeted customer of targeted customer's feedback distance to cooperative node, and utilize distance and network topology structure to estimate targeted customer's position, wherein, metrical information comprises one of following at least: the cooperative node that the targeted customer measures in advance is to targeted customer's power, the channel quality information that the targeted customer measures in advance, the channel condition information that the targeted customer measures in advance.
For each cooperative node, after the wave beam weight of having determined this cooperative node, can also adjust wave beam weight.The mode of adjusting can have multiple, below provided the description of dual mode: mode one: according to metrical information, adjust the wave beam weight of cooperative node, wherein, it is one of following that metrical information comprises at least: the cooperative node that the targeted customer measures in advance is to targeted customer's power, the channel quality information that the targeted customer measures in advance, the channel condition information that the targeted customer measures in advance, for example, can utilize the wave beam weight of the distance adjustment cooperative node between user and the cooperative node according to the distance of above-mentioned metrical information estimation user and cooperative node; Mode two is adjusted the beam property of cooperative node according to the load-factor of cooperative node, wherein, beam property comprise following one of at least: beamwidth, beam angle, beam gain.
Describe with the processing in example one and two pairs of these methods of example below.
Example one
Fig. 2 is the detailed process flow chart according to the confirmation method of wave beam weight of the inventive method embodiment, and as shown in Figure 2, this method may further comprise the steps (step S202. step S212):
Step S202, main control unit obtains the targeted customer (promptly, user mentioned above) feedback measurement report, determining to satisfy under the situation of collaboration MIMO, the a plurality of cooperative nodes of its feedback power in preset range can be defined as the cooperative node that this participates in cooperation, and obtain the numbering of each cooperative node, obtain the network topological diagram (shown in Fig. 3 (a), will be described below) of above-mentioned a plurality of cooperative nodes simultaneously;
Step S204, main control unit is according to the network topology structure figure that obtains among the step S202, determine targeted customer's position, particularly, the polygonal center that a plurality of cooperative node can be formed is defined as targeted customer's position, can think that targeted customer's physical location is positioned near the scope in this center;
Step S206, for each cooperative node, main control unit is determined the position angle of user with respect to cooperative node respectively according to user's position, and determines the wave beam weight of cooperative node according to position angle.
The network topology that Fig. 3 (a) has provided each cooperative node concerns schematic diagram, wherein,
Represent the targeted customer, each hexagonal area is represented the coverage of a cooperative node, represents cooperative node with dark hexagon among the figure, and white hexagon represents not participate in the node of active user's business collaboration, and wherein, main control unit is independent of each cooperative node.Shown in Fig. 3 (a), with cooperative node 3 is example, according to other cooperative nodes (1,4,5) in network with the position of this cooperative node relation, main control unit can be determined the lower left direction of current goal user's home position for this node, calculates cooperative node 3 and targeted customer's position angle, and calculates the wave beam weight of current cooperative node according to this position angle;
Step S208, the wave beam weight of each cooperative node that main control unit will be determined send to corresponding cooperative node;
Step S210, each cooperative node obtains the emission data respectively, simultaneously according to targeted customer's present located sub-district design pilot tone, wherein, each cooperative node can be regarded an antenna port as, itself and other cooperative node constitutes many antenna ports system, wherein, corresponding one tunnel pilot signal of antenna port, for some cooperative nodes, the pilot tone of this antenna port correspondence is as the dedicated pilot of this node, and for the The whole control unit, each port is equivalent to the public guide frequency of cooperative system.
For obtaining of emission data, can realize by following dual mode at least.
Method 1: main control unit to data flow with STC (Space-time Code, Space Time Coding)/STBC (Space-time Block Code, Space-Time Block Coding)/STTC (SpaceTime Trellis Codes, space-time block code) mode is carried out the diversity coding, perhaps carrying out multithread precoding handles, and send corresponding data to cooperative node, for main control unit, each cooperative node is equivalent to the different antennae mouth of many antennas.
Method 2: control unit sends to each cooperative node with data flow, by each cooperative node data stream is carried out diversity or multiplexing and encoding processing, obtains corresponding data.
Step S212, each cooperative node utilize the wave beam weight of acquisition that the emission data are weighted emission respectively.
According to above implementation step,, determine the wave beam weight of each cooperative node by main control unit according to the network topology relation of a plurality of cooperative nodes, do not need the user feedback channel information, reduce channel overhead, avoided the quantization error that produces by channel quantitative, and realized the emission of data.
Example two
Fig. 4 is the detailed process flow chart according to the confirmation method of wave beam weight of the inventive method embodiment, and as shown in Figure 4, this method may further comprise the steps:
Step S402 is with above-mentioned step S202;
Step S404, main control unit sends to above-mentioned a plurality of cooperative node with the numbering and the network topological diagram of cooperative node definite among the step S402;
Step S406, each cooperative node determine the position angle of user with respect to self according to user's position respectively, afterwards, can determine the wave beam weight of cooperative node according to the position angle of determining;
After having determined wave beam weight, each cooperative node can also be adjusted the wave beam weight of cooperative node according to user and the distance between it; In addition, can also adjust the weighting parameter of the wave beam weight of cooperative node according to the load-factor of cooperative node;
Step S408 is with above-mentioned step S210;
Step S410, each cooperative node utilize definite wave beam weight that the emission data are weighted emission respectively.
By this embodiment, according to the network topology relation of a plurality of cooperative nodes, determine the wave beam weight of himself by each cooperative node, and do not need the user feedback channel information, reduced channel overhead, avoided the quantization error that produces by channel quantitative.
Method embodiment two
According to the embodiment of the invention, provide a kind of confirmation method of wave beam weight.
Determine that according to the wave beam weight of the embodiment of the invention method comprises: determine a plurality of cooperative nodes; For each cooperative node in described a plurality of cooperative nodes, set in advance corresponding beam vector group respectively, wherein, comprise a plurality of beam vector in the beam vector group; For each cooperative node in described a plurality of cooperative nodes, according to selecting a beam vector of coupling the most in the beam vector group of this cooperative node of position of targeted customer, and the data of this cooperative node are weighted emission with the described beam vector of selection.Like this, can from the beam vector group, select a corresponding beam vector, and determine the wave beam weight of cooperative node according to the beam vector of selecting according to user's position.
Described above is the situation that a beam vector group is set for each cooperative node, but the invention is not restricted to this, for each cooperative node, also can set in advance a plurality of beam vector groups respectively, afterwards according to the load information of this cooperative node, network topology relation, this cooperative node whether with factors such as other targeted customers are multiplexing, from a plurality of beam vector groups, select a beam vector group as an above-mentioned beam vector group of coupling the most.
In these cases, when selecting beam vector, can be in conjunction with the load-factor of cooperative node, from a plurality of beam vector groups, select a beam vector group as a beam vector group of mating the most, for example, load at cooperative node is lighter, and when difficulty obtains targeted customer's exact position according to the network topology of determining, can adopt the beam vector group of lobe broad and therefrom select beam vector, load at cooperative node is bigger, and can more accurately determine according to the network topology of determining under targeted customer's the situation of position, can select the narrower beam vector group of lobe and therefrom select beam vector.
Below describe further combined with the processing in three pairs of these methods of example.
Example three
Fig. 5 is the detailed process flow chart according to the confirmation method of wave beam weight of the inventive method embodiment, and as shown in Figure 5, this method comprises following processing:
Step S502 for each cooperative node, sets in advance corresponding beam vector group respectively, wherein, comprise a plurality of beam vector in the beam vector group, and the direction of each beam vector distributes evenly;
Step S504, main control unit obtains targeted customer's feedback measurement report, determining to satisfy under the situation of collaboration MIMO, the a plurality of cooperative nodes of its feedback power in preset range can be defined as the cooperative node that this participates in cooperation, and obtain the numbering of each cooperative node, obtain the network topological diagram of above-mentioned a plurality of cooperative nodes simultaneously;
Step S506, main control unit determine targeted customer's position according to the network topological diagram that obtains among the step S504, and particularly, the polygonal center that a plurality of cooperative node can be formed is defined as targeted customer's position;
Step S508 selects a corresponding beam vector according to user's position from the beam vector group, and determines the wave beam weight of cooperative node according to the beam vector of selecting.
For example, Fig. 3 (b) shows N the beam vector that cooperative node is provided with, suppose that the cooperative node 3 shown in Fig. 3 (a) has adopted the direction vector group shown in Fig. 3 (b), then can to judge N beam vector among direction vector Fig. 3 (b) be optimal direction vector to cooperative node 3, equally, other cooperative nodes (1,4,5) are according to just determining separately beam vector with cooperative node 3 similar methods.
Step S508 is with above-mentioned step S210;
Step S510, the wave beam weight that each cooperative node utilization is determined is weighted emission to the emission data.
Pass through the foregoing description, by the beam vector group being set and selecting beam vector, and each cooperative node concerns the flexible configuration beam vector according to network topology, can be so that cooperative node be determined the wave beam weight of himself, do not need the user feedback channel information, reduce channel overhead, avoided the quantization error that produces by channel quantitative simultaneously.
Device embodiment
According to the embodiment of the invention, provide a kind of definite device of wave beam weight.
Fig. 6 shows the structural framing figure according to definite device of the wave beam weight of the embodiment of the invention, and as shown in Figure 6, this device comprises first determination module 10 and second determination module 20, below each module is described:
First determination module 10 is used for determining a plurality of cooperative nodes;
Second determination module 20 is used for determining respectively according to a plurality of cooperative node zone network topological structures the wave beam weight of a plurality of each cooperative node of cooperative node, and this module can be connected to first determination module 10;
When determining wave beam weight according to user's position angle, as shown in Figure 7, second determination module 20 comprises that also first determines submodule 201, second definite submodule 202 and the 3rd definite submodule 203, first determines submodule 201, be used for network topology structure, estimation targeted customer's position according to a plurality of cooperative nodes; Second determines submodule 202, is used for the targeted customer's that obtains according to estimation position, determines the position relation of targeted customer with respect to each cooperative node; The 3rd determines submodule 203, is used for determining with respect to the position relation of each cooperative node according to the targeted customer wave beam weight of each cooperative node.
Fig. 8 shows the structural framing figure according to definite device of the wave beam weight of the embodiment of the invention, and as shown in Figure 7, this device comprises determination module 12 and module 14 and transmitter module 16 are set, below each module described:
Determination module 12 is used for determining a plurality of cooperative nodes;
Module 14 is set, is used for each cooperative node of a plurality of cooperative nodes is provided with corresponding beam vector group respectively, this module can be connected to determination module 12;
Transmitter module 16, be used for each cooperative node for a plurality of cooperative nodes, from the beam vector group, select a beam vector of coupling the most according to targeted customer's position, and the data of this cooperative node being weighted emission with the beam vector of selecting, this module can be connected to module 14 is set.
When the beam vector group being set determining wave beam weight, as shown in Figure 9, this is provided with module 14, can comprise submodule 141 being set and selecting module 142, wherein, submodule 141 is set is used for each cooperative node is provided with a plurality of beam vector groups respectively; Selection module 142 is used for the character according to cooperative node, from a plurality of beam vector groups, select the beam vector group of a beam vector group as current cooperative node, wherein, character comprises one of following at least: whether network topology relation, the load information of cooperative node, cooperative node be multiplexing with other targeted customers.
Definite device of the wave beam weight that provides by the embodiment of the invention, determine the wave beam weight of each cooperative node by the network topology relation of a plurality of cooperative nodes, do not need the user feedback channel information, reduced channel overhead, avoided the quantization error that produces by channel quantitative simultaneously.
As mentioned above, by means of confirmation method of wave beam weight provided by the invention and/or device, determine the wave beam weight of each cooperative node by the network topology relation of a plurality of cooperative nodes, do not need the user feedback channel information, reduce channel overhead, avoided the quantization error that produces by channel quantitative simultaneously.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a confirmation method of wave beam weight is characterized in that, comprising:
Determine a plurality of cooperative nodes;
Determine the wave beam weight of each cooperative node in described a plurality of cooperative nodes respectively according to the network topology structure of described a plurality of cooperative nodes.
2. method according to claim 1 is characterized in that, determines that the processing of described a plurality of cooperative nodes is specially:
According to the metrical information of described targeted customer's feedback, select to satisfy the node of pre-provisioning request as described a plurality of cooperative nodes.
3. method according to claim 2 is characterized in that,
Described metrical information be the node that measures in advance of described targeted customer under the situation of described targeted customer's power, the node that satisfies described pre-provisioning request to described targeted customer's power in all measured node is defined as cooperative node;
In described metrical information is under the situation of the channel condition information that measures in advance of described targeted customer, and the pairing node of the channel condition information that satisfies described pre-provisioning request of described targeted customer's feedback is defined as cooperative node;
In described metrical information is under the situation of the channel quality information that measures in advance of described targeted customer, and the node that satisfies pre-provisioning request to described targeted customer's channel quality in described all measured node is defined as cooperative node.
4. method according to claim 3, it is characterized in that, utilizing described metrical information to determine in the described cooperative node process, under the situation of load greater than predetermined threshold of the described cooperative node of determining, this cooperative node is being removed from described a plurality of cooperative nodes of determining.
5. method according to claim 1 is characterized in that, determines respectively that according to the network topology structure of described a plurality of cooperative nodes the processing of the wave beam weight of each cooperative node in described a plurality of cooperative nodes is specially:
According to the network topology structure of described a plurality of cooperative nodes, estimate described targeted customer's position;
The position relation of described targeted customer with respect to described each cooperative node determined in the described targeted customer's who obtains according to estimation position;
Determine the wave beam weight of described each cooperative node with respect to the position relation of described each cooperative node according to described targeted customer.
6. method according to claim 5 is characterized in that, determines respectively that according to described network topology the wave beam weight of each cooperative node in described a plurality of cooperative nodes also comprises:
After being estimated to described targeted customer's position according to described network topology structure and described metrical information, obtain the position relation of described targeted customer with respect to described each cooperative node;
Position relation according to described targeted customer and described each cooperative node, select design factor to calculate the wave beam weight of current cooperative node, wherein, whether described design factor is adjusted with other targeted customers are multiplexing according to the load information or the cooperative node of network topology relation or cooperative node.
7. method according to claim 5 is characterized in that, described network topology structure according to described a plurality of cooperative nodes estimates that the processing of described targeted customer's position is specially:
Estimate the distance of described targeted customer according to the metrical information of described targeted customer's feedback to described cooperative node, and utilize described distance and described network topology structure to estimate described targeted customer's position, wherein, described metrical information comprises one of following at least: the channel condition information that the channel quality information that the cooperative node that described targeted customer measures in advance measures in advance to described targeted customer's power, described targeted customer, described targeted customer measure in advance.
8. method according to claim 5 is characterized in that, after the wave beam weight according to each cooperative node in the definite respectively described a plurality of cooperative nodes in described targeted customer's position, described method also comprises:
According to described metrical information, adjust the wave beam weight of described cooperative node, wherein, described metrical information comprises one of following at least: the channel condition information that the channel quality information that the cooperative node that described targeted customer measures in advance measures in advance to described targeted customer's power, described targeted customer, described targeted customer measure in advance; And/or
According to the load-factor of described cooperative node, adjust the beam property of described cooperative node, wherein, described beam property comprise following one of at least: beamwidth, beam angle, beam gain.
9. according to each described method in the claim 1 to 8, it is characterized in that it is one of following that described cooperative node comprises: sub-district, base station, relay station, remote radio unit (RRU).
10. a confirmation method of wave beam weight is characterized in that, comprising:
Determine a plurality of cooperative nodes;
For each cooperative node in described a plurality of cooperative nodes, set in advance corresponding beam vector group respectively;
For each cooperative node in described a plurality of cooperative nodes, according to selecting a beam vector of coupling the most in the beam vector group of this cooperative node of position of targeted customer, and the data of this cooperative node are weighted emission with the described beam vector of selection.
11. method according to claim 10 is characterized in that, under the quantity to the described beam vector group of described each cooperative node setting is a plurality of situation, further comprises:
Character according to described cooperative node, from described a plurality of beam vector groups, select the beam vector group of a beam vector group as current cooperative node, wherein, described character comprises one of following at least: whether the load information of network topology structure, cooperative node, cooperative node be multiplexing with other targeted customers.
12. definite device of a wave beam weight is characterized in that, comprising:
First determination module is used for determining a plurality of cooperative nodes;
Second determination module is used for determining respectively according to described a plurality of cooperative node zone network topological structures the wave beam weight of described a plurality of each cooperative node of cooperative node.
13. device according to claim 12 is characterized in that, described second determination module also comprises:
First determines submodule, is used for the network topology structure according to described a plurality of cooperative nodes, estimation targeted customer's position;
Second determines submodule, is used for the described targeted customer's that obtains according to estimation position, determines the position relation of described targeted customer with respect to described each cooperative node;
The 3rd determines submodule, is used for determining with respect to the position relation of described each cooperative node according to described targeted customer the wave beam weight of described each cooperative node.
14. definite device of a wave beam weight is characterized in that, comprising:
Determination module is used for determining a plurality of cooperative nodes;
Module is set, is used for each cooperative node of described a plurality of cooperative nodes is provided with corresponding beam vector group respectively;
Transmitter module is used for each cooperative node for described a plurality of cooperative nodes, selects the most coupling according to targeted customer's position from described beam vector group
A beam vector, and the data of this cooperative node are weighted emission with the described beam vector of selecting.
15. device according to claim 14 is characterized in that, the described module that is provided with specifically comprises:
Submodule is set, is used for described each cooperative node is provided with a plurality of beam vector groups respectively;
Select module, be used for character according to described cooperative node, from described a plurality of beam vector groups, select the beam vector group of a beam vector group as current cooperative node, wherein, described character comprises one of following at least: whether network topology relation, the load information of cooperative node, cooperative node be multiplexing with other targeted customers.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298098A (en) * | 2012-02-24 | 2013-09-11 | 中兴通讯股份有限公司 | Data synchronization adjusting method and system in multi-base-station cooperation |
| CN106332180A (en) * | 2015-06-24 | 2017-01-11 | 中国移动通信集团江苏有限公司 | Load balancing method and device |
| WO2018126420A1 (en) * | 2017-01-05 | 2018-07-12 | 广东欧珀移动通信有限公司 | Communication method, terminal device, and network device |
| CN108377538A (en) * | 2016-11-22 | 2018-08-07 | 中兴通讯股份有限公司 | A kind of method and device of distribution wave beam |
| CN109565324A (en) * | 2016-08-12 | 2019-04-02 | 华为技术有限公司 | The system and method for user facility operation management |
| EP4340239A1 (en) * | 2022-08-15 | 2024-03-20 | The Boeing Company | System and method for coordinated beamforming among discrete communication devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100588130C (en) * | 2007-05-08 | 2010-02-03 | 电子科技大学 | Distribution multi-antenna communication method and system based on focus signal |
| CN101227242B (en) * | 2008-01-31 | 2011-06-01 | 西安交通大学 | Method for forming distributed aerial array beam based on channel correction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298098A (en) * | 2012-02-24 | 2013-09-11 | 中兴通讯股份有限公司 | Data synchronization adjusting method and system in multi-base-station cooperation |
| CN106332180A (en) * | 2015-06-24 | 2017-01-11 | 中国移动通信集团江苏有限公司 | Load balancing method and device |
| CN106332180B (en) * | 2015-06-24 | 2020-09-04 | 中国移动通信集团江苏有限公司 | Load balancing method and device |
| CN109565324A (en) * | 2016-08-12 | 2019-04-02 | 华为技术有限公司 | The system and method for user facility operation management |
| CN108377538A (en) * | 2016-11-22 | 2018-08-07 | 中兴通讯股份有限公司 | A kind of method and device of distribution wave beam |
| WO2018126420A1 (en) * | 2017-01-05 | 2018-07-12 | 广东欧珀移动通信有限公司 | Communication method, terminal device, and network device |
| EP4340239A1 (en) * | 2022-08-15 | 2024-03-20 | The Boeing Company | System and method for coordinated beamforming among discrete communication devices |
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