CN103546260A - Multi-radio remote unit cell-shared coordinating multipoint transmission method and device - Google Patents
Multi-radio remote unit cell-shared coordinating multipoint transmission method and device Download PDFInfo
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- CN103546260A CN103546260A CN201210237441.4A CN201210237441A CN103546260A CN 103546260 A CN103546260 A CN 103546260A CN 201210237441 A CN201210237441 A CN 201210237441A CN 103546260 A CN103546260 A CN 103546260A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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Abstract
The invention discloses a multi-radio remote unit cell-shared coordinating multipoint transmission method and device, and relates to the technical field of communication network technology; uplink demodulation performance can be improved, and user dropped calls can be reduced. According to an embodiment, the method includes a target RRU of a user device according to at least two radio remote units of a same base station; determining a coordinating RRU of the user device according to the target RRU and other RRU except for the target RRU; performing coordinating multipoint transmission CoMP equalization processing on received user data by the target RRU and the coordinating RRU, and acquiring demodulation data of the user device. The scheme provided by the embodiment is adaptable to multi-radio remote unit cell-shared uplink coordinating multipoint transmission.
Description
Technical field
The present invention relates to communication network technology field, relate in particular to method and the device of a kind of many remote radio unit common communities cooperative multipoint transmission.
Background technology
At present, many Remote Radio Unit (Radio Remote Unit, RRU) community is for to merge into same community by a plurality of RRU coverage cell altogether, and the Zone switched same community relay point that becomes between original so a plurality of communities, has reduced switching, expanded single station coverage distance, reduce the cell reselection of subscriber equipment (User Equipment, UE) in network, the probability that switch community, promote terminal use's call successful rate, reduce call drop probability, effectively promote user and experience and network quality.
In prior art when the information that adopts DuoRRUGong community mode uplink receiving UE to send, the RRU of this UE information of all receptions measures up Signal to Interference plus Noise Ratio (the Signal-to-Interference plus Noise Ratio of UE, SINR), selecting the wherein RRU of SINR maximum is UE service, receives the information of UE transmission and carries out demodulation.
Yet when adopting prior art receive UE information and separate timing, because the imbricate region distance base station that a plurality of RRU cover is distant, signal is poor, causes uplink demodulation poor-performing, and user's drop rate is higher.
Summary of the invention
Embodiments of the invention provide method and the device of a kind of many remote radio unit common communities cooperative multipoint transmission, can improve uplink demodulation performance, and reduce user's drop rate.
On the one hand, embodiments of the invention provide the method for a kind of many remote radio unit common communities cooperative multipoint transmission, comprising:
According at least two of same base station radio frequency remote unit RRU, determine the target RRU of subscriber equipment;
According to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment;
By described target RRU and described cooperation RRU, the user data receiving is carried out to cooperative multipoint transmission CoMP equilibrium treatment, to obtain the demodulating data of described subscriber equipment.
In another embodiment of the present invention, describedly according at least two of same base station RRU, determine that the target RRU of subscriber equipment comprises: obtain the up Signal to Interference plus Noise Ratio SINR that at least two RRU of same base station measure; Determine the target RRU that RRU corresponding to upstream sinr maximum in described upstream sinr is subscriber equipment.
In another embodiment of the present invention, described according to described target RRU and the RRU except described target RRU, the cooperation RRU that determines described subscriber equipment comprises: according to the up RSRP of the uplink reference signals received power RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; Or, according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment.
On the other hand, embodiments of the invention provide the device of a kind of many remote radio unit common communities cooperative multipoint transmission, comprising:
Processor, for determining the target RRU of subscriber equipment according at least two radio frequency remote unit RRU; And according to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment;
Described target RRU, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU.
In another embodiment of the present invention, described processor is used for: obtain the up Signal to Interference plus Noise Ratio SINR that at least two RRU measure; And the target RRU that in definite described upstream sinr, maximum RRU corresponding to upstream sinr is subscriber equipment.
In another embodiment of the present invention, described processor comprises: the first determination module, for according to the up RSRP of the up RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; Or the second determination module, for according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment.
The embodiment of the present invention provides method and the device of a kind of many remote radio unit common communities cooperative multipoint transmission, by determine the target RRU of subscriber equipment according at least two of same base station radio frequency remote unit RRU; According to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; By described target RRU and described cooperation RRU, the user data receiving is carried out to cooperative multipoint transmission CoMP equilibrium treatment, to obtain the demodulating data of described subscriber equipment.With in prior art, receive UE information and separate timing, because the imbricate regional signal that a plurality of RRU cover is poor, cause uplink demodulation poor-performing, and user's drop rate is higher compares, the present embodiment is by target RRU and cooperation RRU Combined Treatment, can improve uplink demodulation performance, and reduce user's drop rate.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the method for a kind of many remote radio unit common communities cooperative multipoint transmission that Fig. 1 provides for the embodiment of the present invention 1;
The block diagram of the device of a kind of many remote radio unit common communities cooperative multipoint transmission that Fig. 2 provides for the embodiment of the present invention 1;
The flow chart of the method for a kind of definite cooperation RRU that Fig. 3 provides for the embodiment of the present invention 2;
The another kind that Fig. 4 provides for the embodiment of the present invention 2 is determined the flow chart of the method for cooperation RRU;
The target RRU that Fig. 5 provides for the embodiment of the present invention 2 and cooperation RRU carry out the schematic diagram of CoMP equilibrium treatment to the user data receiving;
The target RRU that Fig. 6 provides for the embodiment of the present invention 2 and cooperation RRU carry out another schematic diagram of CoMP equilibrium treatment to the user data receiving;
The target RRU that Fig. 7 provides for the embodiment of the present invention 2 and cooperation RRU carry out another schematic diagram of CoMP equilibrium treatment to the user data receiving;
The block diagram of the device of a kind of many remote radio unit common communities cooperative multipoint transmission that Fig. 8 provides for the embodiment of the present invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The embodiment of the present invention provides the method for a kind of many remote radio unit common communities cooperative multipoint transmission, and the executive agent of the method is base station, and as shown in Figure 1, the method comprises the following steps:
It should be noted that, at least two RRU are configured to same logic district, at least two RRU belong to same base station, wherein at least comprise target RRU and the RRU that cooperates.
Optionally, obtain the up Signal to Interference plus Noise Ratio SINR of at least two radio frequency remote unit RRU measurements of same base station; Determine the target RRU that RRU corresponding to upstream sinr maximum in described upstream sinr is subscriber equipment.
Optionally, according to the up RSRP of the up RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment;
Concrete, calculate respectively the absolute value of up RSRP that described target RRU measures and the difference of the up RSRP of each RRU measurement except described target RRU; According to the absolute value of described difference, determine the cooperation RRU of described subscriber equipment.
Wherein, according to the absolute value of described difference, determine that the cooperation RRU of described subscriber equipment comprises following several mode:
When the absolute value of at least two described differences is less than or equal to default CoMP (Coordinated Multi-Point transmission cooperative multipoint transmission) thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of same antenna number, the cooperation RRU that in the absolute value of definite at least two described differences, the RRU corresponding to absolute value of minimal difference is described subscriber equipment;
When the absolute value of at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of different antennae number, the upstream sinr of measuring according to RRU corresponding to the absolute value of at least two described differences, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment;
When only there being the absolute value of a described difference to be less than or equal to default CoMP thresholding, the cooperation RRU that RRU corresponding to absolute value that determines described difference is described subscriber equipment;
When the absolute value of all described differences is greater than default CoMP thresholding, described subscriber equipment is non-CoMP user, exits handling process.
Optionally, according to the upstream sinr of the upstream sinr of described target RRU and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment.
Concrete, calculate respectively the difference of upstream sinr that described target RRU measures and the upstream sinr of RRU measurement except described target RRU; When described difference is less than or equal to default upstream sinr difference threshold, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
Optionally, when described target RRU and described cooperation RRU are the RRU of same antenna number, described cooperation RRU in base station carries out discrete Fourier transform DFT processing by the user data receiving, and CoMP data that obtain are sent to the described target RRU in described base station;
Described target RRU carries out DFT processing by the user data receiving, and obtains the 2nd CoMP data, and disturbs inhibition to merge processing described CoMP data and described the 2nd CoMP data.
Optionally, when described target RRU and described cooperation RRU are the RRU of different antennae number, described cooperation RRU in base station by the antenna reception of preset number to user data carry out DFT processing, the 3rd CoMP data that obtain are sent to the described target RRU in described base station; Described target RRU carries out DFT processing by the user data receiving, and obtains the 2nd CoMP data, and disturbs inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data; Or,
Described target RRU in base station carries out DFT processing by the user data receiving, and the 2nd CoMP data by obtaining, send to the described cooperation RRU in described base station; Described cooperation RRU by the antenna reception of preset number to user data carry out DFT processing, obtain the 3rd CoMP data, and will described the 3rd CoMP data and described the 2nd CoMP data disturbs and suppresses merging processing; Or,
When described target RRU and described cooperation RRU are the RRU of different antennae number, described cooperation RRU in base station carries out the user data receiving successively DFT processing, disturbs and suppress to merge after processing and inverse discrete Fourier transform IDFT, obtain the 5th CoMP data, and described the 5th CoMP data are sent to described target RRU; Described target RRU in base station carries out the user data receiving successively DFT processing, disturbs and suppress to merge after processing and IDFT simultaneously, obtains the 6th CoMP data; Described target RRU carries out high specific merging processing by described the 5th CoMP data and described the 6th CoMP data.
The embodiment of the present invention provides the method for a kind of many remote radio unit common communities cooperative multipoint transmission, by determining respectively target RRU and cooperation RRU, then the user data that target RRU and cooperation RRU combine receiving carries out cooperative multipoint transmission CoMP equilibrium treatment, can improve uplink demodulation performance, and reduce user's drop rate.
The embodiment of the present invention provides the device of a kind of many remote radio unit common communities cooperative multipoint transmission, and this device can be base station, and as shown in Figure 2, this device comprises: processor 201, target RRU202, cooperation RRU203;
It should be noted that, at least two RRU are configured to same logic district, at least two RRU belong to same base station, at least comprise target RRU and the RRU that cooperates.
Optionally, described processor 201 for: obtain the up Signal to Interference plus Noise Ratio upstream sinr that at least two RRU measure; And the target RRU that in definite described upstream sinr, maximum RRU corresponding to upstream sinr is subscriber equipment.
Optionally, the first determination module in described processor 201, for according to the up RSRP of the up RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment; Or the second determination module in described processor 201, for according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment.
Further, the calculating sub module in described the first determination module, for calculating respectively the absolute value of up RSRP that described target RRU measures and the difference of the up RSRP of each RRU measurement except described target RRU; Really stator modules in described the first determination module, for determining the cooperation RRU of described subscriber equipment according to the absolute value of described difference.
Further, described definite submodule is used for:
When the absolute value of at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of same antenna number, the cooperation RRU that in the absolute value of definite at least two described differences, the RRU corresponding to absolute value of minimal difference is described subscriber equipment;
And absolute value that ought at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of different antennae number, the upstream sinr of measuring according to RRU corresponding to the absolute value of at least two described differences, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment;
And the absolute value that ought only have a described difference is less than or equal to default CoMP thresholding, the cooperation RRU that RRU corresponding to absolute value that determines described difference is described subscriber equipment;
And when the absolute value of all described differences is greater than default CoMP thresholding, described subscriber equipment is non-CoMP user, exits handling process.
Further, the calculating sub module in described the second determination module, for calculating respectively the difference of upstream sinr and the upstream sinr that the RRU except described target RRU measures of described target RRU measurement; Really stator modules in described the second determination module, while presetting upstream sinr difference threshold for being less than or equal to when described difference, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
Described target RRU202, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU203.
Further, when described target RRU202 is the RRU of same antenna number with the described RRU203 of cooperation, described cooperation RRU203, for the user data receiving being carried out to discrete Fourier transform DFT processing, sends to described target RRU202 by CoMP data that obtain;
Described target RRU202, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described CoMP data and described the 2nd CoMP data.
Further, when described target RRU and described cooperation RRU are the RRU of different antennae number,
Described cooperation RRU203, for by the antenna reception of preset number to user data carry out DFT processing, the 3rd CoMP data that obtain are sent to described target RRU202; Described target RRU202, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data; Or,
Described target RRU202, for the user data receiving is carried out to DFT processing, the 2nd CoMP data by obtaining, send to described cooperation RRU203; Described cooperation RRU203, for by the antenna reception of preset number to user data carry out DFT processing, obtain the 3rd CoMP data, and described the 3rd CoMP data and described the 2nd CoMP data disturbed to suppress to merge and process; Or,
Described cooperation RRU203, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and inverse discrete Fourier transform IDFT, obtains the 5th CoMP data, and described the 5th CoMP data is sent to described target RRU202; Described target RRU202, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and IDFT, obtains the 6th CoMP data; And described the 5th CoMP data and described the 6th CoMP data are carried out to high specific merging processing.
It should be noted that, described target RRU202 can independently exist as two equipment respectively with the described RRU203 that cooperates, but described target RRU202 belongs to a base station with the described RRU203 of cooperation.
The embodiment of the present invention provides the device of a kind of many remote radio unit common communities cooperative multipoint transmission, by processor, for determine the target RRU of subscriber equipment according at least two of same base station radio frequency remote unit RRU; And according to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; Described target RRU, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU, can improve uplink demodulation performance, and reduce user's drop rate.
Embodiment 2
The embodiment of the present invention provides the method for a kind of many remote radio unit common communities cooperative multipoint transmission, and the executive agent of the method is base station, and shown in Fig. 1, the method comprises:
It should be noted that, at least two RRU are configured to same logic district, at least two RRU belong to same base station, at least comprise target RRU and the RRU that cooperates.
Optionally, obtain the up Signal to Interference plus Noise Ratio upstream sinr of at least two radio frequency remote unit RRU measurements of same base station; Determine the target RRU that RRU corresponding to upstream sinr maximum in described upstream sinr is subscriber equipment.
This step can adopt following two kinds of modes to determine cooperation RRU:
Mode one: uplink reference signals received power (the Reference signal received power measuring according to described target RRU, RSRP) the up RSRP that RRU and except described target RRU measures, determines the cooperation RRU of described subscriber equipment.As shown in Figure 3, comprise the following steps:
Optionally, presetting CoMP thresholding can be 6dB or 10dB.
It should be noted that, when the RRU that meets default CoMP thresholding is during at least two, need further to judge D[i] whether the RRU of correspondence be the RRU of same antenna number; When the RRU of satisfied default CoMP thresholding is only one, directly determine that this RRU satisfying condition is the RRU that cooperates.
The RRU of same antenna number can be the RRU of 2 antennas, or can be the RRU of 8 antennas.
The RRU of different antennae number can be the RRU of 2 antennas and the RRU of 8 antennas.
Mode two: according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; As shown in Figure 4, comprise the following steps:
Step 401, calculates respectively the difference of upstream sinr that described target RRU measures and the upstream sinr of RRU measurement except described target RRU;
Step 402, whether the described difference that judgement is calculated is less than or equal to default upstream sinr difference threshold;
Step 403, when described difference is less than or equal to default upstream sinr difference threshold, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
Step 404, when described difference is greater than default upstream sinr difference threshold, described subscriber equipment is non-CoMP user, exits handling process.
This step can adopt following two kinds of equalization schemes according to the number of antennas of target RRU and cooperation RRU:
Optionally, when target RRU is the RRU of same antenna number with cooperation RRU, for example, when target RRU and cooperation RRU are 2 antenna RRU, as shown in Figure 5, cooperation RRU by 2 antenna receptions to user data carry out discrete Fourier transform DFT processing, be about to time domain data and be transformed into frequency domain, obtain CoMP data, and CoMP data that obtain are sent to target RRU;
In cooperation when RRU processes the user data receiving, target RRU by 2 antenna receptions to user data carry out DFT processing, obtain the 2nd CoMP data; Target RRU receives the CoMP data that cooperation RRU sends, and disturb inhibition to merge (Interference Rejection Combining described CoMP data and described the 2nd CoMP data, IRC) process, the RRU that is about to 4 antennas combines IRC equilibrium.
It should be noted that, carry out after equilibrium treatment, target RRU carries out inverse discrete Fourier transform (Inverse Discrete Fourier Transform successively, IDFT), quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM), deinterleaving computing, mixed automatic retransmission request (Hybrid Automatic Requestor, HARQ) merge Combine and turbine decode Turbo Decode, obtain the demodulating data of subscriber equipment.
Optionally, when described target RRU and described cooperation RRU are the RRU of different antennae number, for example, target RRU is 2 antenna RRU, and cooperation RRU is 8 antenna RRU, as shown in Figure 6, cooperation RRU by the antenna reception of preset number to user data carry out DFT processing, be about to time domain data and be transformed into frequency domain, optional, by optional 6 antenna receptions in 8 antenna RRU to user data carry out DFT processing, obtain the 3rd CoMP data; The 3rd CoMP data that obtain are sent to target RRU; In cooperation when RRU carries out DFT processing by the user data receiving, described target RRU by 2 antenna receptions to user data carry out DFT processing, obtain the 2nd CoMP data; Target RRU receives the 3rd CoMP data that cooperation RRU sends, and disturbs inhibition merging to process described the 3rd CoMP data and described the 2nd CoMP data;
Or, target RRU by 2 antenna receptions to user data carry out DFT processing, obtain the 2nd CoMP data; Target RRU, by the 2nd CoMP data that obtain, sends to cooperation RRU; When target RRU carries out DFT processing by the user data receiving, described cooperation RRU by the antenna reception of preset number to user data carry out DFT processing, optionally, by optional 6 antenna receptions in 8 antennas in RRU to user data carry out DFT processing, obtain the 3rd CoMP data; The 2nd CoMP data that cooperation RRU receiving target RRU sends, and disturb inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data.
It should be noted that, carry out after equilibrium treatment, target RRU carries out IDFT, QAM, deinterleaving computing, HARQ merging Combine and turbine decode Turbo Decode successively, obtains the demodulating data of subscriber equipment.
Optionally, when described target RRU and described cooperation RRU are the RRU of different antennae number, for example, target RRU is 2 antenna RRU, and cooperation RRU is 8 antenna RRU, can also adopt method described below to carry out CoMP equilibrium treatment, as shown in Figure 7, cooperation RRU by 8 antenna receptions to user data carry out successively DFT processing, disturb to suppress merge process and inverse discrete Fourier transform IDFT after, obtain the 5th CoMP data, and described the 5th CoMP data sent to target RRU; Cooperation RRU by 8 antenna receptions to user data process in, target RRU by 2 antenna receptions to user data carry out successively DFT processing, disturb to suppress merge process and IDFT, obtain the 6th CoMP data; Target RRU receives the 5th CoMP data that cooperation RRU sends, and described the 5th CoMP data and described the 6th CoMP data are carried out to high specific merging (Maximum Ratio Combining, MRC) processing;
It should be noted that, carry out after equilibrium treatment, target RRU carries out QAM, deinterleaving computing, HARQ merging Combine and turbine decode Turbo Decode successively, obtains the demodulating data of subscriber equipment.
The method of a kind of many remote radio unit common communities cooperative multipoint transmission that the embodiment of the present invention provides, by up a plurality of RRU, combine and receive UE data and process, can further promote RRU overlay region user's uplink demodulation performance, and reduce user's drop rate.
The embodiment of the present invention provides the device of a kind of many remote radio unit common communities cooperative multipoint transmission, this device can be base station, and as shown in Figure 8, this device comprises: processor 801, the first determination module 8011, calculating sub module 80111, determines submodule 80112, the second determination modules 8012, calculating sub module 80121, determine submodule 80122, target RRU802, cooperation RRU803;
At least two radio frequency remote unit RRU belong to the device of many remote radio unit common communities cooperative multipoint transmission of the present embodiment, belong to a base station.
Further, described processor 801 for: obtain the up Signal to Interference plus Noise Ratio upstream sinr that at least two RRU measure; And the target RRU that in definite described upstream sinr, maximum RRU corresponding to upstream sinr is subscriber equipment.
Further, the first determination module 8011 in described processor 801, for according to the up RSRP of the up RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment; Or,
The second determination module 8012 in described processor 801, for according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment.
It should be noted that, processor 801 comprises at least one in the first determination module 8011, the second determination module 8012.
Further, the calculating sub module 80111 in described the first determination module 8011, for calculating respectively the absolute value of up RSRP that described target RRU measures and the difference of the up RSRP of each RRU measurement except described target RRU;
Really stator modules 80112 in described the first determination module 8011, for determining the cooperation RRU of described subscriber equipment according to the absolute value of described difference.Concrete, described definite submodule 80112 is less than or equal to default CoMP thresholding for absolute value that ought at least two described differences, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of same antenna number, the cooperation RRU that in the absolute value of definite at least two described differences, the RRU corresponding to absolute value of minimal difference is described subscriber equipment; And absolute value that ought at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of different antennae number, the upstream sinr of measuring according to RRU corresponding to the absolute value of at least two described differences, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment; And the absolute value that ought only have a described difference is less than or equal to default CoMP thresholding, the cooperation RRU that RRU corresponding to absolute value that determines described difference is described subscriber equipment; And when the absolute value of all described differences is greater than default CoMP thresholding, described subscriber equipment is non-CoMP user, exits handling process.
Further, the calculating sub module 80121 in described the second determination module 8012, for calculating respectively the difference of upstream sinr and the upstream sinr that the RRU except described target RRU measures of described target RRU measurement;
Really stator modules 80122 in described the second determination module 8012, while presetting upstream sinr difference threshold for being less than or equal to when described difference, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
Described target RRU802, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU803.
Further, when described target RRU802 and described cooperation RRU803 are the RRU of same antenna number, described cooperation RRU803, for the user data receiving being carried out to discrete Fourier transform DFT processing, sends to described target RRU802 by CoMP data that obtain;
Described target RRU802, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described CoMP data and described the 2nd CoMP data.
Further, when described target RRU802 and described cooperation RRU803 are the RRU of different antennae number, described cooperation RRU803, for by the antenna reception of preset number to user data carry out DFT processing, the 3rd CoMP data that obtain are sent to described target RRU802; Described target RRU802, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data; Or,
Described target RRU802, for the user data receiving is carried out to DFT processing, the 2nd CoMP data by obtaining, send to described cooperation RRU803; Described cooperation RRU803, for by the antenna reception of preset number to user data carry out DFT processing, obtain the 3rd CoMP data, and described the 3rd CoMP data and described the 2nd CoMP data disturbed to suppress to merge and process; Or,
Described cooperation RRU803, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and inverse discrete Fourier transform IDFT, obtains the 5th CoMP data, and described the 5th CoMP data is sent to described target RRU802; Described target RRU802, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and IDFT, obtains the 6th CoMP data; And described the 5th CoMP data and described the 6th CoMP data are carried out to high specific merging processing.
It should be noted that, described target RRU802 can independently exist as two equipment respectively with the described RRU803 that cooperates, but described target RRU802 belongs to a base station with the described RRU803 of cooperation.
The embodiment of the present invention provides the device of a kind of many remote radio unit common communities cooperative multipoint transmission, by processor, for determine the target RRU of subscriber equipment according at least two of same base station radio frequency remote unit RRU; And according to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; Described target RRU, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU, can improve uplink demodulation performance, and reduce user's drop rate.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection range with claim.
Claims (16)
1. a method for the cooperative multipoint transmission of remote radio unit common community more than, is characterized in that, comprising:
According at least two of same base station radio frequency remote unit RRU, determine the target RRU of subscriber equipment;
According to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment;
By described target RRU and described cooperation RRU, the user data receiving is carried out to cooperative multipoint transmission CoMP equilibrium treatment, to obtain the demodulating data of described subscriber equipment.
2. method according to claim 1, is characterized in that, describedly according at least two of same base station radio frequency remote unit RRU, determines that the target RRU of subscriber equipment comprises:
Obtain the up Signal to Interference plus Noise Ratio SINR of at least two RRU measurements of same base station;
Determine the target RRU that RRU corresponding to upstream sinr maximum in described upstream sinr is subscriber equipment.
3. method according to claim 2, is characterized in that, described according to described target RRU and the RRU except described target RRU, determines that the cooperation RRU of described subscriber equipment comprises:
According to the up RSRP of the uplink reference signals received power RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment; Or,
According to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment.
4. method according to claim 3, is characterized in that, the up RSRP that the described up RSRP measuring according to described target RRU and the RRU except described target RRU measure determines that the cooperation RRU of described subscriber equipment comprises:
Calculate respectively the absolute value of up RSRP that described target RRU measures and the difference of the up RSRP of each RRU measurement except described target RRU;
According to the absolute value of described difference, determine the cooperation RRU of described subscriber equipment.
5. method according to claim 4, is characterized in that, the described absolute value according to described difference determines that the cooperation RRU of described subscriber equipment comprises:
When the absolute value of at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of same antenna number, the cooperation RRU that in the absolute value of definite at least two described differences, the RRU corresponding to absolute value of minimal difference is described subscriber equipment;
When the absolute value of at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of different antennae number, the upstream sinr of measuring according to RRU corresponding to the absolute value of at least two described differences, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment;
When only there being the absolute value of a described difference to be less than or equal to default CoMP thresholding, the cooperation RRU that RRU corresponding to absolute value that determines described difference is described subscriber equipment;
When the absolute value of all described differences is greater than default CoMP thresholding, described subscriber equipment is non-CoMP user, exits handling process.
6. method according to claim 3, is characterized in that, the upstream sinr that the described upstream sinr of measuring according to described target RRU and the RRU except described target RRU measure determines that the cooperation RRU of described subscriber equipment comprises:
Calculate respectively the difference of upstream sinr and the upstream sinr that the RRU except described target RRU measures of described target RRU measurement;
When described difference is less than or equal to default upstream sinr difference threshold, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
7. method according to claim 1, it is characterized in that, when described target RRU and described cooperation RRU are the RRU of same antenna number, describedly by described target RRU and described cooperation RRU, the user data receiving are carried out to cooperative multipoint transmission CoMP equilibrium treatment and comprises:
Described cooperation RRU in base station carries out discrete Fourier transform DFT processing by the user data receiving, and CoMP data that obtain are sent to the described target RRU in described base station;
Described target RRU carries out DFT processing by the user data receiving, and obtains the 2nd CoMP data, and disturbs inhibition to merge processing described CoMP data and described the 2nd CoMP data.
8. method according to claim 1, it is characterized in that, when described target RRU and described cooperation RRU are the RRU of different antennae number, describedly by described target RRU and described cooperation RRU, the user data receiving are carried out to cooperative multipoint transmission CoMP equilibrium treatment and comprises:
Described cooperation RRU in base station by the antenna reception of preset number to user data carry out DFT processing, the 3rd CoMP data that obtain are sent to the described target RRU in described base station; Described target RRU carries out DFT processing by the user data receiving, and obtains the 2nd CoMP data, and disturbs inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data; Or,
Described target RRU in base station carries out DFT processing by the user data receiving, and the 2nd CoMP data by obtaining, send to the described cooperation RRU in described base station; Described cooperation RRU by the antenna reception of preset number to user data carry out DFT processing, obtain the 3rd CoMP data, and will described the 3rd CoMP data and described the 2nd CoMP data disturbs and suppresses merging processing; Or,
Described cooperation RRU in base station carries out the user data receiving successively DFT processing, disturbs and suppress to merge after processing and inverse discrete Fourier transform IDFT, obtains the 5th CoMP data, and described the 5th CoMP data are sent to described target RRU; Described target RRU in base station carries out the user data receiving successively DFT processing, disturbs and suppress to merge after processing and IDFT simultaneously, obtains the 6th CoMP data; Described target RRU carries out high specific merging processing by described the 5th CoMP data and described the 6th CoMP data.
9. a device for the cooperative multipoint transmission of remote radio unit common community more than, is characterized in that, comprising:
Processor, for determining the target RRU of subscriber equipment according at least two radio frequency remote unit RRU; And according to described target RRU and the RRU except described target RRU, determine the cooperation RRU of described subscriber equipment;
Described target RRU, carries out cooperative multipoint transmission CoMP equilibrium treatment for the user data of combining receiving with described cooperation RRU.
10. device according to claim 9, is characterized in that, described processor is used for:
Obtain the up Signal to Interference plus Noise Ratio SINR that at least two RRU measure; And the target RRU that in definite described upstream sinr, maximum RRU corresponding to upstream sinr is subscriber equipment.
11. devices according to claim 10, is characterized in that, described processor comprises:
The first determination module, for according to the up RSRP of the up RSRP of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment; Or,
The second determination module, for according to the upstream sinr of the upstream sinr of described target RRU measurement and the measurement of the RRU except described target RRU, determines the cooperation RRU of described subscriber equipment.
12. devices according to claim 11, is characterized in that, described the first determination module comprises:
Calculating sub module, for calculating respectively the absolute value of up RSRP that described target RRU measures and the difference of the up RSRP of each RRU measurement except described target RRU;
Determine submodule, for determine the cooperation RRU of described subscriber equipment according to the absolute value of described difference.
13. devices according to claim 12, is characterized in that, described definite submodule is used for:
When the absolute value of at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of same antenna number, the cooperation RRU that in the absolute value of definite at least two described differences, the RRU corresponding to absolute value of minimal difference is described subscriber equipment;
And absolute value that ought at least two described differences is less than or equal to default CoMP thresholding, and when the RRU that the absolute value of at least two described differences is corresponding is the RRU of different antennae number, the upstream sinr of measuring according to RRU corresponding to the absolute value of at least two described differences, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment;
And the absolute value that ought only have a described difference is less than or equal to default CoMP thresholding, the cooperation RRU that RRU corresponding to absolute value that determines described difference is described subscriber equipment;
And when the absolute value of all described differences is greater than default CoMP thresholding, described subscriber equipment is non-CoMP user, exits handling process.
14. devices according to claim 11, is characterized in that, described the second determination module comprises:
Calculating sub module, for calculating respectively the difference of SINR and the SINR that the RRU except described target RRU measures of described target RRU measurement;
Determine submodule, when being less than or equal to default upstream sinr difference threshold when described difference, the upstream sinr of measuring according to RRU corresponding to described difference, determines the cooperation RRU that RRU that maximum upstream sinr is corresponding is described subscriber equipment.
15. devices according to claim 9, is characterized in that, when described target RRU and described cooperation RRU are the RRU of same antenna number,
Described cooperation RRU, for the user data receiving being carried out to discrete Fourier transform DFT processing, sends to described target RRU by CoMP data that obtain;
Described target RRU, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described CoMP data and described the 2nd CoMP data.
16. methods according to claim 9, is characterized in that, when described target RRU and described cooperation RRU are the RRU of different antennae number,
Described cooperation RRU, for by the antenna reception of preset number to user data carry out DFT processing, the 3rd CoMP data that obtain are sent to described target RRU; Described target RRU, for the user data receiving is carried out to DFT processing, obtains the 2nd CoMP data, and disturbs inhibition to merge processing described the 3rd CoMP data and described the 2nd CoMP data; Or,
Described target RRU, for the user data receiving is carried out to DFT processing, the 2nd CoMP data by obtaining, send to described cooperation RRU; Described cooperation RRU, for by the antenna reception of preset number to user data carry out DFT processing, obtain the 3rd CoMP data, and described the 3rd CoMP data and described the 2nd CoMP data disturbed to suppress to merge and process; Or,
Described cooperation RRU, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and inverse discrete Fourier transform IDFT, obtains the 5th CoMP data, and described the 5th CoMP data is sent to described target RRU; Described target RRU, for the user data receiving being carried out successively to DFT processing, disturbing and suppress to merge after processing and IDFT, obtains the 6th CoMP data; And described the 5th CoMP data and described the 6th CoMP data are carried out to high specific merging processing.
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| PCT/CN2012/085610 WO2014008735A1 (en) | 2012-07-10 | 2012-11-30 | Method and device for coordinated multiple point transmission in multi-remote radio unit cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992229A (en) * | 2015-02-27 | 2016-10-05 | 上海贝尔股份有限公司 | Method and device for enforcement of district segmentation in wireless communication network |
| WO2024108533A1 (en) * | 2022-11-25 | 2024-05-30 | 深圳市运联通通信服务有限公司 | Signal processing method and apparatus, and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218981B (en) * | 2014-08-26 | 2018-03-20 | 大唐移动通信设备有限公司 | The combination treatment method and equipment of a kind of multiple antennas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101583161A (en) * | 2009-05-26 | 2009-11-18 | 北京邮电大学 | Cooperative node unit selection method and device |
| CN101982995A (en) * | 2010-10-29 | 2011-03-02 | 华为技术有限公司 | Communication method, device and system |
| US20110275376A1 (en) * | 2008-12-30 | 2011-11-10 | Mauro Boldi | Method for adaptive distributed mobile communications, corresponding system and computer program product |
| CN102484551A (en) * | 2009-08-21 | 2012-05-30 | 高通股份有限公司 | Multipoint equalization framework for coordinated multipoint transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195760A (en) * | 2010-03-16 | 2011-09-21 | 松下电器产业株式会社 | Wireless communication system, base station, terminal and method for generating codebook |
| CN102324954B (en) * | 2011-05-18 | 2013-12-25 | 西安电子科技大学 | Cooperation combination preferable method based on synchronous constraint and signal channel energy rules |
-
2012
- 2012-07-10 CN CN201210237441.4A patent/CN103546260B/en active Active
- 2012-11-30 WO PCT/CN2012/085610 patent/WO2014008735A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110275376A1 (en) * | 2008-12-30 | 2011-11-10 | Mauro Boldi | Method for adaptive distributed mobile communications, corresponding system and computer program product |
| CN101583161A (en) * | 2009-05-26 | 2009-11-18 | 北京邮电大学 | Cooperative node unit selection method and device |
| CN102484551A (en) * | 2009-08-21 | 2012-05-30 | 高通股份有限公司 | Multipoint equalization framework for coordinated multipoint transmission |
| CN101982995A (en) * | 2010-10-29 | 2011-03-02 | 华为技术有限公司 | Communication method, device and system |
Non-Patent Citations (2)
| Title |
|---|
| 华为等: "Analysis on uplink/downlink time delay issue for distributed antenna system", 《3GPP TSG RAN WG1#55 R1-084336》 * |
| 张从青: "LTE-Advanced***中分布式站点设置与选择机制研究", 《北京邮电大学硕士论文》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992229A (en) * | 2015-02-27 | 2016-10-05 | 上海贝尔股份有限公司 | Method and device for enforcement of district segmentation in wireless communication network |
| CN105992229B (en) * | 2015-02-27 | 2019-08-27 | 上海诺基亚贝尔股份有限公司 | A kind of method and its equipment for implementing cell segmentation within a wireless communication network |
| WO2024108533A1 (en) * | 2022-11-25 | 2024-05-30 | 深圳市运联通通信服务有限公司 | Signal processing method and apparatus, and storage medium |
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