CN102932931B - Base station coordination method and device - Google Patents
Base station coordination method and device Download PDFInfo
- Publication number
- CN102932931B CN102932931B CN201110230080.6A CN201110230080A CN102932931B CN 102932931 B CN102932931 B CN 102932931B CN 201110230080 A CN201110230080 A CN 201110230080A CN 102932931 B CN102932931 B CN 102932931B
- Authority
- CN
- China
- Prior art keywords
- resource
- base stations
- base station
- cooperation
- specified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of base station coordination method and devices, this method comprises: the base station determination for initiating cooperation will distribute to the resource of UE；By COMP gather in the selection that cooperate in the UE of each Self management of other base stations in addition to the base station for initiating cooperation be suitable for the UE of resource, wherein including all base stations that can be allocated processing to resource in COMP set.There is no the constraint of priority in the condition that cooperation is initiated using the present invention, cooperation chance can be effectively increased.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of base station coordination method and device.
Background technique
As the standard of forth generation communication system (4G), IMT-Advanced (Intelligent Multimode
Terminal-Advanced, improved intelligent multi-control terminal) for the performance of system, more stringent requirements are proposed, especially
There is higher requirement to the frequency efficiency of uplink and downlink.
COMP (Coordinated multi-pointtransmission/reception, cooperative multipoint transmission) is one
The technology that kind can expand speed rates coverage area, improve cell edge service quality and handling capacity and throughput of system,
As the important technology for improving system spectrum utilization rate, extensive concern has been obtained.So-called cooperative multipoint transmission, i.e., multiple base stations
Cooperation transmission serves one or more UE (User Equipment, user equipment).The COMP that 3GPP is defined includes 2 kinds of fields
Scape, one is multipoint cooperative scheduling, i.e., by interaction scheduling information between adjacent node, reach between each cell transmission signal
Interfere coordination of attaining the Way；Another kind is multi-point joint processing, i.e., passes through shared data and CSI (Channel between multiple cooperative nodes
Situation Information, channel state information), scheduling information etc., combine and provide service for target user.Multiple spot association
It does not need to interact too many information between each node of the advantages of working as dispatcher, wireless interface does not influence, the disadvantage is that can not obtain
The raising of spectrum utilization efficiency is not contributed in cooperation transmission gain.Multi-point joint processing can obtain macro-diversity and cooperation passes
Defeated gain can obtain the processing gain of high-order antenna.The disadvantage is that the interaction of a large amount of data information and CSI information is needed,
Complexity is high.
Cooperative multipoint transmission architecture diagram is as shown in Figure 1, serving BS Serving eNode-B and cooperative base station
It is connected between Collaborative eNode-B by X2 Interface (optical port), two base stations are simultaneously UE0 and UE1 is mentioned
For resource, X2 interface is undefined at present.
User positioned at cell edge is comparable at a distance from neighboring community with the distance of serving cell, submits to net
The characteristics of network MIMO (Multi-Input Multi-Output, multiple-input and multiple-output).In addition, edge customer is main interference
Object (interference of the downlink by adjacent cells, while upper guild interferes adjacent cells).Currently mainly using FFR
The means of (Fractional Frequency Reuse, partial frequency multiplexing technology) and power control, FFR, which is mainly interfered, to hide
The strategy kept away if collaboration, can bring biggish performance boost in this manner for edge customer, while improving system
Overall performance.
Now the mode classification of COMP is described in detail:
(1) JP (Joint Processing, joint transmission) refers to that data can be used on the base station of collaboration set.Including 2 kinds of feelings
Condition:,
(a) data are transmitted to UE in joint transmission (JT), i.e., (all or part) base station in each collaboration set；
The base station of cooperation sends data (related or uncorrelated) to UE simultaneously, and Lai Tigao received signal quality or active disappear
Except the interference to other UE.
(b) DCS (Dynamic Channel Selection, dynamic channel selection), refers to a base station in COMP set
Data are sent to UE.
(2) CS/CB (Coordinated Scheduling/Beamforming, equivalent arrangements/same framework), refer to data
It is only available in serving BS, but user in cooperation centralized dispatching or carries out beamforming.
In addition, considering from link direction, COMP can also be divided into: uplink UL COMP and downlink DL COMP,
Leading at present to be applied is downlink COMP.
At present when standard discussion, the method for tending to that native region priority is arranged substantially, using priority to cell
It is divided, when dispatching resource for UE, the high cell of selection priority, the defect of this method are the reduction of COMP cooperation first
Chance.
In fact, the interference that the UE under different base station is received is not necessarily equity, needs to cooperate at this time and eliminate UE receiving
Interference, and the priority processing mode used in the related technology reduce COMP cooperation chance, may need to cooperate
The purpose is not achieved in the case where eliminating interference.For example, with reference to Fig. 2, UE a can also other than the signal a for receiving base station NB1
The wireless signal b that NB2 is sent enough is received, interference is formed to the signal a that NB1 is sent.And UE b not necessarily receives NB1's
Interference signal a, therefore the UE under two base stations receives that disturbed condition is different, to whether needing to cooperate and eliminate the requirement of interference
Also it is different.And to the example of Fig. 2, it is only necessary to eliminate interference that UE a is received can, in actual operation, need pair
Two UE carry out interference cancellation operation, cause the waste of resource.
Aiming at the problem that reducing the chance of COMP cooperation in the related technology, causing the waste of resource, not yet propose at present
Effective solution scheme.
Summary of the invention
The main purpose of the present invention is to provide a kind of base station coordination method and devices, at least to solve above-mentioned the relevant technologies
In reduce COMP cooperation chance, cause the problem of waste of resource.
According to an aspect of the invention, there is provided a kind of base station coordination method, comprising: the base station for initiating cooperation determines i.e.
The resource of user equipment (UE) will be distributed to；By other in cooperative multipoint transmission COMP set in addition to the base station for initiating cooperation
Base station cooperates in the UE of each Self management selects to be suitable for the UE of the resource, wherein includes all energy in the COMP set
Enough base stations that processing is allocated to the resource.
Preferably, the base station determination that the initiation cooperates will be distributed to before the predistribution resource of UE, further includes: each UE
Determine the measurement COMP set of itself, wherein include at least one sector in the measurement COMP set, the UE is able to detect
To the down public guide frequency signal of at least one sector, and the down public guide frequency signal strength of at least one sector
More than predetermined threshold value.
Preferably, by COMP gather in except it is described initiate cooperation base station in addition to other base stations assisted in the UE of each Self management
The UE to elect suitable for the resource, comprising: other described base stations judge whether the resource is pre-allocated to specified
One or more UE；Other described base stations are suitable for the UE of the resource according to judging result selection.
Preferably, other described base stations are suitable for the UE of the resource according to judging result selection, comprising: if the resource
It is not pre-allocated to specified UE, other described base stations never participate in selection UE in the UE of predistribution and match with other described base stations
It is right, and by the resource allocation to the UE of successful matching.
Preferably, other described base stations are suitable for the UE of the resource according to judging result selection, comprising: if the resource
It is pre-allocated to specified UE, other described base stations are matched with the specified UE.
Preferably, other described base stations are matched with the specified UE, comprising: if successful matching, other described bases
It stands erectly to connect and the pre-coding matrix of the resource is calculated according to the channel information of the UE of successful matching feedback；If pairing is unsuccessful,
Other described base stations are according to the channel information for matching unsuccessful UE feedback and the priority meter of the base station of the initiation cooperation
Calculate the pre-coding matrix.
Preferably, other described base stations calculate the precoding of the resource in conjunction with the priority of the base station for initiating cooperation
Matrix, comprising: when the priority of the base station for initiating cooperation is higher than the priority of other base stations, other base stations benefit
The pre-coding matrix is calculated with the channel information for not including the specified UE feedback；The priority of the base station for initiating cooperation
Lower than other base stations priority when, other described base stations carry out pressure pairing to the specified UE, and utilize the finger
The channel information for determining UE feedback calculates the pre-coding matrix.
According to another aspect of the present invention, a kind of base station collaboration system is provided, base station and association including initiating cooperation
Make other base stations in multicast communication COMP set in addition to the base station for initiating cooperation: the base station for initiating cooperation is used for
Determination will distribute to the resource of user equipment (UE)；Other described base stations are applicable in for the selection that cooperates in the UE of each Self management
In the UE of the resource, wherein include all base stations that can be allocated processing to the resource in the COMP set.
Preferably, the base station and other described base stations of initiating cooperation are also used to enable the measurement COMP collection of the UE of self-management
It closes, wherein include at least one sector in the measurement COMP set, the UE is able to detect that at least one sector
Down public guide frequency signal, and the down public guide frequency signal strength of at least one sector is more than predetermined threshold value.
Preferably, other described base stations are also used to judge whether the resource is pre-allocated to specified one or more
A UE；It is suitable for the UE of the resource according to judging result selection.
Preferably, it if other described base stations are also used to the resource and are not pre-allocated to specified UE, never participates in pre-
UE and other described base stations is selected to match in the UE of distribution, and by the resource allocation to the UE of successful matching.
Preferably, if other described base stations are also used to the resource and are pre-allocated to specified UE, with the specified UE
It is matched.
Preferably, if other described base stations are also used to successful matching, the channel directly fed back according to the UE of successful matching
Information calculates the pre-coding matrix of the resource；If pairing is unsuccessful, according to the channel information for matching unsuccessful UE feedback
And the priority of the base station for initiating cooperation calculates the pre-coding matrix.
Preferably, the priority that other described base stations are also used to the base station for initiating cooperation is higher than other base stations
When priority, the pre-coding matrix is calculated using the channel information for not including the specified UE feedback；The initiation cooperation
When the priority of base station is lower than the priority of other base stations, pressure pairing is carried out to the specified UE, and utilize the finger
The channel information for determining UE feedback calculates the pre-coding matrix.
In embodiments of the present invention, the base station determination for initiating cooperation will distribute to the resource of UE, by COMP gather in remove
Other base stations outside the base station of initiation cooperation cooperate in the UE of each Self management selects to be suitable for the UE of resource, that is, the present invention is real
Applying in example does not have the constraint of priority in the condition that cooperation is initiated, and can effectively increase cooperation chance.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the cooperative multipoint transmission architecture diagram according to the relevant technologies；
Fig. 2 is the asymmetric cooperation scene figure according to the relevant technologies；
Fig. 3 is the process flow diagram of base station coordination method according to an embodiment of the present invention；
Fig. 4 is the structural schematic diagram being arranged in embodiment one according to an embodiment of the present invention；
Fig. 5 is the implementation case scene figure of embodiment two according to an embodiment of the present invention；
Fig. 6 is the process flow diagram of embodiment two according to an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of base station collaboration system according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It mentions in the related technology, at present when standard discussion, the method for tending to that native region priority is arranged substantially, benefit
Cell is divided with priority, when dispatching resource for UE, the high cell of selection priority, the defect of this method are first
Reduce the chance of COMP cooperation.In fact, the interference that the UE under different base station is received is not necessarily equity, need to assist at this time
Make to eliminate the interference that UE receives, and the priority processing mode used in the related technology reduces the chance of COMP cooperation, it can
The purpose can be not achieved in the case where needing and cooperating and eliminate interference, and will cause the waste of resource.
In order to solve the above technical problems, the embodiment of the invention provides a kind of base station coordination method, process flow such as Fig. 3
It is shown, comprising:
Step S302, the base station determination for initiating cooperation will distribute to the resource of UE；
Step S304, by COMP gather in except initiate cooperation base station in addition to other base stations cooperate in the UE of each Self management
Selection is suitable for the UE of above-mentioned resource；
It wherein, include all base stations that processing can be allocated to above-mentioned resource in COMP set.
In embodiments of the present invention, the base station determination for initiating cooperation will distribute to the resource of UE, by COMP gather in remove
Other base stations outside the base station of initiation cooperation cooperate in the UE of each Self management selects to be suitable for the UE of resource, that is, the present invention is real
Applying in example does not have the constraint of priority in the condition that cooperation is initiated, and can effectively increase cooperation chance.
In a preferred embodiment, before the base station determination for initiating to cooperate will distribute to the predistribution resource of UE,
Each UE determine itself measurement COMP set, wherein measurement COMP set in include at least one sector, UE be able to detect that
The down public guide frequency signal of a few sector, and the down public guide frequency signal strength of at least one sector is more than pre-determined threshold
Value.When implementation, measurement COMP set is controlled by relative intensity thresholding, the cost of cooperation, additional income can be reduced.
When implementation, process as shown in Figure 3, step S304 by COMP gather in except initiate cooperation base station in addition to other base stations
Cooperation selection is suitable for the UE of above-mentioned resource in the UE of each Self management, and process flow is as follows: other base stations judge above-mentioned money
Whether source is pre-allocated to specified one or more UE, and is suitable for the UE of above-mentioned resource according to judging result selection.
In a preferred embodiment, other base stations can select the UE for being suitable for resource according to judging result, specifically,
If above-mentioned resource is not pre-allocated to specified UE, other base stations never participate in predistribution UE in selection UE and it is described its
He matches base station, and by above-mentioned resource allocation to the UE of successful matching.
When implementation, the corresponding channel information of different resource be it is different, therefore, can use letter during pairing
Road information is matched, if channel information can successful matching, just generation support resource can successful matching, and then may be by above-mentioned money
Distribute to the UE of successful matching in source.
Specifically, from the perspective of from another angle, if resource is pre-allocated to specified UE, other base stations and specified UE
It is matched.
When implementation, pairing result may be successful matching, it is also possible to match it is unsuccessful, according to pairing result difference,
Whether be UE scheduling pre-scheduling resource definitive result it is also different, when implementation, if successful matching, preferred processing mode packet
Include: if successful matching, other base stations directly calculate prelisting for above-mentioned resource according to the channel information that the UE of successful matching is fed back
Code matrix.
If configuration is unsuccessful, preferred processing mode includes: other base stations according to the channel for matching unsuccessful UE feedback
Information and the priority for initiating the base station to cooperate calculate the pre-coding matrix of above-mentioned resource.
Other base stations combine the pre-coding matrix for initiating the priority computing resource of base station of cooperation herein, preferably locate
Reason mode includes:
When the priority of the base station of initiation cooperation is higher than the priority of other base stations, it includes specified UE that other base stations, which utilize not,
The channel information of feedback calculates the pre-coding matrix of above-mentioned resource；
When the priority of the base station of initiation cooperation is lower than the priority of other base stations, specified UE is forced in other base stations
Pairing, and the channel information for utilizing specified UE to feed back calculates the pre-coding matrix of above-mentioned resource.
It is clearer to become apparent from the embodiment of the present invention with providing base station coordination method elaboration, now carried out with specific embodiment
Explanation.
Embodiment one
It is provided with structure as shown in Figure 4 in the present embodiment, specifically includes following each module, and list the function of each module
Can:
Pre-scheduling module: needing to change in original system, increases the predistribution function of interface-free resources；
Up channel data reception module: be responsible for receiving UE by eat dishes without rice or wine to be transmitted through come channel sounding data；
Downlink precoding module: being modified in original system, increases dynamic precoding function；
COMP module: newly-increased module safeguards UE collaboration set, resource collaboration collection, and pre-coding matrix W is calculated, and faces station interaction
The information such as resource, channel, time, precoding.
Up channel feedback module: the feedback to interference channel is completed；
Channel measurement module: the measurement to service station, jamming station channel is completed；
Based on above structure, base station coordination method provided in an embodiment of the present invention the following steps are included:
The first step, UE detect all down public guide frequency signal strengths；
If second step, some downlink signal are more than threshold value relative to the signal strength in service station, which is believed
Number carry out full bandwidth channel measurement, had more than thresholding base station composition UE measurement COMP collection；
Resource information, the channel data amount of third step, up channel feedback module channel data according to distribution carry out certainly
Channel data, is issued base station by dynamic particle size matching；
4th step, up channel data reception module detect channel data, issue COMP module；
5th step, COMP module safeguard resource collaboration collection, and notice scheduler module carries out pre-scheduling, and according to the COMP collection of UE
Resource information, channel information pre-scheduling, temporal information issue corresponding base station；
After 6th step, COMP module receive the information sent, gathered according to COMP, carry out following pairing algorithm:
If 1, corresponding resource is not pre-allocated, the user for never participating in predistribution selects user and COMP collection
Conjunction is matched；
If 2, corresponding resource is pre-allocated, and is matched using the user of the resource with COMP set,
If successful matching calculates w, scheduling of resource is carried out to UE using the sector of successful matching；
If 3, pairing is unsuccessful, and our station (i.e. sector) priority is high, then does not consider that our station is fed back when calculating w
The channel information to come over does not also carry out scheduling of resource to UE using our station；
If pairing is unsuccessful, and our station priority is low, forces pairing, calculates w, and carry out resource to UE using our station
Scheduling.
Determine successful matching or it is unsuccessful after, according to COMP gather in service station and other stations channel information
Calculate the downlink precoding matrix for the resource that can be dispatched.
Precoding information is issued downlink precoding module in scheduling of resource by the 7th step, COMP module.
The base station coordination method provided is implemented using the present invention and device has the advantage that compared with the relevant technologies
1, interference is eliminated with strong points, has interference just to eliminate, and is not interfered with and is then carried out according to original process, independence
By force, reaction is fast；
2, there is no the constraint of priority in the initiation condition that cooperates, cooperation chance can be effectively increased；
3, asymmetric cooperation reduces unnecessary information feedback；
4, asymmetric cooperation is taken based on cell of the common pilot signal relative intensity more than thresholding as the first of UE first
Beginning collaboration set, base station determine resource collaboration collection by resource allocation to carry out second of collaboration set control, two collaboration set controls
It is more flexible, UE can be made more smooth on collaboration mode and non-cooperating scheme control；
5, UE collaboration set is controlled by relative intensity thresholding, cooperation cost can be made small, income is big.
Embodiment two
Implementation case scene figure shown in Figure 5, wherein
There are CELLb, two sectors CELLc below NB2；
There is mono- sector CELLa below NB1；
The current serving cell of UEa is CELLa, the boundary in CELLa and CELLb, therefore can receive the interference of CELLb
Signal；
The current serving cell of UEb is CELLb；Boundary in CELLb and CELLc, therefore the interference of CELLc can be received
Signal；
The current serving cell of UEc is CELLc, the boundary in tri- cells of CELLa, CELLb, CELLc, therefore can receive
To the interference signal of CELLb, CELLa.
It is assumed that the resource that three UE are distributed all is overlapped, pre-coding matrix does not have to change if not being overlapped, still according to
The mode mentioned in the related technology is handled.
Specific collaboration method is as shown in Figure 6, comprising:
Step S602, RSRP (the Received Signal Code for all downlinks that UEa is observed to affiliated NB1 report
Other parameter replacements also can be used in Power, down public guide frequency signal strength), if it exceeds thresholding then believe by reporting channel
Breath, the channel information that this regular meeting reports our station and CELLb to stand simultaneously.
Step S604, the RSRP of all downlinks that UEb is observed to affiliated NB2 report, if it exceeds thresholding then on notify
Road information, the channel information that this example reports our station and CELLc to stand simultaneously.
Step S606, after NB1 (due to only including CELLa, also referred to as NBa) receives the report of UEa, to NB2-CELLb (letter
Claim NBb) send UEa measurement CELLb channel information, the resource allocation information of UEa.
Step S608, after NB2-CELLb receives the report of UEb, send what UEb was measured to NB2-CELLc b (abbreviation NBc)
The channel information of CELLc.
Step S610, the pre-coding matrix that NB1 still uses the mode of the relevant technologies to generate UEa.
Step S612, NB1 sends the resource allocation information of UEa to NB2-CELLb.
Step S614, the RSRP for all downlinks that UEc is observed to affiliated NB2-CELLc report, and our station is reported simultaneously
And the channel information at CELLb, CELLc two stations.
Step S616, after NB2-CELLc receives the report of UEc, the channel for the CELLb that UEc is measured is sent to NB2-CELLb
Information, the resource allocation information of UEc；The channel information for the CELLa that UEc is measured, the resource allocation of UEc are sent to NB1-CELLa
Information.
Step S618, NB2-CELLB is measured according to UEa UEb, and resource identical with UEa or UEc is distributed to
CELLb channel, UEc measurement CELLb channel, UEb measurement CELLb channel, according to maximum leakage than principle calculate UEb under
Capable pre-coding matrix.
Step S620, NB2-CELLc is to distributing to UEc, and the identical resource of UEc, according to the CELLc of UEb measurement,
The CELLc channel of UEc measurement, the pre-coding matrix of UEc downlink is calculated according to maximum leakage than principle.
Step S622, NB1-CELLa is to distributing to UEa, and the identical resource of UEc, according to the CELLa of UEc measurement,
The CELLa channel of UEa measurement, the pre-coding matrix of UEa downlink is calculated according to maximum leakage than principle.
Cooperation between wherein NB2CELLB, NB2-CELLC due under the same NB, by x2 interface into
Row cooperation, is carried out by modes such as shared variables；Cooperation between NB1 and NB2 is carried out by x2 interface.
Based on the same inventive concept, the embodiment of the invention also provides a kind of base station collaboration system, structural schematic diagram is such as
Shown in Fig. 7, including other in the base station 701 for initiating to cooperate and cooperative multipoint transmission COMP set in addition to the base station for initiating cooperation
Base station 702:
The base station 701 for initiating cooperation, the resource of user equipment (UE) will be distributed to for determination；
Other base stations 702 are connected with the base station 701 for initiating to cooperate, and are applicable in for the selection that cooperates in the UE of each Self management
In the UE of resource, wherein include all base stations that can be allocated processing to resource in COMP set.
In one embodiment, it is preferred that, the base station 701 and other base stations 702 for initiating cooperation can be also used for enabling certainly
The UE of barrel reason determines the measurement COMP set of itself, wherein includes at least one sector in measurement COMP set, UE can be examined
The down public guide frequency signal of at least one sector is measured, and the down public guide frequency signal strength of at least one sector is more than pre-
Gating limit value.
In one embodiment, it is preferred that, other base stations 702 can be also used for judging whether above-mentioned resource is divided in advance
It is assigned to specified one or more UE；It is suitable for the UE of above-mentioned resource according to judging result selection.
In one embodiment, it is preferred that, if other base stations 702 can not be pre-allocated with above-mentioned resource to specified
UE never participates in selection UE and other base stations in the UE of predistribution and matches, and by above-mentioned resource allocation to the UE of successful matching.
In one embodiment, it is preferred that, if other base stations 702 can have been pre-allocated with above-mentioned resource to specified
UE is matched with specified UE.
In one embodiment, it is preferred that, if other base stations 702 can be also used for successful matching, directly according to pairing
The pre-coding matrix of the channel information computing resource of successful UE feedback；If pairing is unsuccessful, according to the unsuccessful UE of pairing
The channel information of feedback and the priority for initiating the base station to cooperate calculate pre-coding matrix.
In one embodiment, it is preferred that, the priority that other base stations 702 can also initiate the base station 701 of cooperation is higher than
When the priority of other base stations 702, pre-coding matrix is calculated using the channel information for not including specified UE feedback；Initiate cooperation
When the priority of base station 701 is lower than the priority of other base stations 702, pressure pairing is carried out to specified UE, and anti-using specified UE
The channel information of feedback calculates pre-coding matrix.
It can be seen from the above description that the present invention realizes following technical effect:
In embodiments of the present invention, the base station determination for initiating cooperation will distribute to the resource of UE, by COMP gather in remove
Other base stations outside the base station of initiation cooperation cooperate in the UE of each Self management selects to be suitable for the UE of resource, that is, the present invention is real
Applying in example does not have the constraint of priority in the condition that cooperation is initiated, and can effectively increase cooperation chance.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of base station coordination method characterized by comprising
The base station determination for initiating cooperation will distribute to the resource of user equipment (UE)；
By other base stations in cooperative multipoint transmission COMP set in addition to the base station for initiating cooperation in the UE of each Self management
Cooperation selection is suitable for the UE of the resource, wherein can be allocated to the resource in the COMP set including all
The base station of processing.
2. the method according to claim 1, wherein the base station determination for initiating cooperation will distribute to UE's
Before resource, further includes:
Each UE determines the measurement COMP set of itself, wherein includes at least one sector, the UE in the measurement COMP set
It is able to detect that the down public guide frequency signal of at least one sector, and the down public guide frequency of at least one sector
Signal strength is more than predetermined threshold value.
3. the method according to claim 1, wherein by COMP gather in except it is described initiate cooperation base station in addition to
Other base stations cooperate in the UE of each Self management selects to be suitable for the UE of the resource, comprising:
Other described base stations judge whether the resource is pre-allocated to specified one or more UE；
Other described base stations are suitable for the UE of the resource according to judging result selection.
4. according to the method described in claim 3, it is characterized in that, other described base stations are suitable for institute according to judging result selection
State the UE of resource, comprising: if the resource is not pre-allocated to specified UE, other described base stations never participate in predistribution
UE and other described base stations is selected to match in UE, and by the resource allocation to the UE of successful matching.
5. according to the method described in claim 3, it is characterized in that, other described base stations are suitable for institute according to judging result selection
State the UE of resource, comprising: if the resource is pre-allocated to specified UE, other described base stations are matched with the specified UE
It is right.
6. according to the method described in claim 5, it is characterized in that, other described base stations are matched with the specified UE, packet
It includes:
If successful matching, other described base stations directly calculate the resource according to the channel information that the UE of successful matching is fed back
Pre-coding matrix；
If pairing is unsuccessful, other described base stations are assisted according to the channel information and the initiation that match unsuccessful UE feedback
The priority of the base station of work calculates the pre-coding matrix.
7. according to the method described in claim 6, it is characterized in that, other described base stations are in conjunction with the base station for initiating cooperation
Priority calculates the pre-coding matrix of the resource, comprising:
When the priority of the base station for initiating cooperation is higher than the priority of other base stations, other described base stations utilize and do not wrap
The channel information for including the specified UE feedback calculates the pre-coding matrix；
When the priority of the base station for initiating cooperation is lower than the priority of other base stations, other described base stations are to the finger
Determine UE and carry out pressure pairing, and calculates the pre-coding matrix using the channel information of the specified UE feedback.
8. a kind of base station collaboration system, which is characterized in that in base station and cooperative multipoint transmission COMP set including initiating cooperation
Other base stations in addition to the base station for initiating cooperation:
The base station for initiating cooperation, the resource of user equipment (UE) will be distributed to for determination；
Other described base stations, for UE of the cooperation selection suitable for the resource in the UE of each Self management, wherein the COMP
It include all base stations that processing can be allocated to the resource in set.
9. system according to claim 8, which is characterized in that the base station for initiating cooperation and other described base stations are also
For enabling the UE of self-management in determining that the measurement COMP of itself gathers, wherein including at least one in measurement COMP set
A sector, the UE are able to detect that the down public guide frequency signal of at least one sector, and at least one described sector
Down public guide frequency signal strength be more than predetermined threshold value.
10. system according to claim 8, which is characterized in that whether other described base stations are also used to judge the resource
It is pre-allocated to specified one or more UE；It is suitable for the UE of the resource according to judging result selection.
11. system according to claim 10, which is characterized in that if other described base stations be also used to the resource not by
It pre-allocates selection UE and other described base stations in the UE for never participating in predistribution to specified UE to match, and the resource is divided
The UE of dispensing successful matching.
12. system according to claim 10, which is characterized in that if other described base stations be also used to the resource by
Predistribution is matched to specified UE with the specified UE.
13. system according to claim 12, which is characterized in that if other described base stations are also used to successful matching, directly
Connect the pre-coding matrix that the resource is calculated according to the channel information of the UE of successful matching feedback；If pairing is unsuccessful, according to
The priority of the channel information and the base station for initiating cooperation that match unsuccessful UE feedback calculates the pre-coding matrix.
14. system according to claim 13, which is characterized in that other described base stations are also used to the base for initiating cooperation
When the priority stood is higher than the priority of other base stations, institute is calculated using the channel information for not including the specified UE feedback
State pre-coding matrix；When the priority of the base station for initiating cooperation is lower than the priority of other base stations, to described specified
UE carries out pressure pairing, and calculates the pre-coding matrix using the channel information of the specified UE feedback.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110230080.6A CN102932931B (en) | 2011-08-11 | 2011-08-11 | Base station coordination method and device |
| PCT/CN2012/073187 WO2012152148A1 (en) | 2011-08-11 | 2012-03-28 | Base station cooperation method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110230080.6A CN102932931B (en) | 2011-08-11 | 2011-08-11 | Base station coordination method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102932931A CN102932931A (en) | 2013-02-13 |
| CN102932931B true CN102932931B (en) | 2019-02-26 |
Family
ID=47138773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110230080.6A Active CN102932931B (en) | 2011-08-11 | 2011-08-11 | Base station coordination method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102932931B (en) |
| WO (1) | WO2012152148A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778428A (en) * | 2009-01-14 | 2010-07-14 | 大唐移动通信设备有限公司 | Method, system and device for determining time frequency resource |
| CN101784103A (en) * | 2009-01-19 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for scheduling users in a plurality of communities and wireless access network equipment thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9537613B2 (en) * | 2008-10-24 | 2017-01-03 | Qualcomm Incorporated | Acknowledgment based on short cell radio network temporary identifier |
| CN101741442B (en) * | 2008-11-20 | 2013-03-20 | 华为技术有限公司 | Method for confirming resource mapping in cooperative multicast transmission, network equipment and system |
| CN101820631B (en) * | 2009-02-27 | 2013-02-20 | 中国移动通信集团公司 | Method for performing coordinated scheduling among base stations in mobile communication system and base stations |
| CN101888665B (en) * | 2009-05-13 | 2013-03-13 | 普天信息技术研究院有限公司 | Local scheduler-based multi-point cooperative transmission method |
| CN101932111B (en) * | 2009-06-26 | 2015-04-01 | 中兴通讯股份有限公司 | Method and system for resource scheduling between enhanced base stations |
| CN101895940B (en) * | 2010-07-26 | 2013-01-09 | 北京邮电大学 | Method for distributing resources between main service cell and coordinate cells |
-
2011
- 2011-08-11 CN CN201110230080.6A patent/CN102932931B/en active Active
-
2012
- 2012-03-28 WO PCT/CN2012/073187 patent/WO2012152148A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778428A (en) * | 2009-01-14 | 2010-07-14 | 大唐移动通信设备有限公司 | Method, system and device for determining time frequency resource |
| CN101784103A (en) * | 2009-01-19 | 2010-07-21 | 大唐移动通信设备有限公司 | Method for scheduling users in a plurality of communities and wireless access network equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012152148A1 (en) | 2012-11-15 |
| CN102932931A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Qamar et al. | A comprehensive review on coordinated multi-point operation for LTE-A | |
| EP2288049B1 (en) | Method and device for user pairing for uplink multi-user MIMO under coordinated multiple point transmission scenario | |
| CN101651880B (en) | Multi-cell coordination sending method | |
| EP2582194B1 (en) | Wireless access method, equipment and system | |
| US8364162B2 (en) | UE initiated frequency partitioning based CoMP scheme for downlink cellular communications | |
| CN103620974A (en) | Method and apparatus for interference mitigation in wireless systems | |
| CN101860419B (en) | For reducing equipment and the method for the presence of intercell interference in multi-input multi-output system | |
| CN102065465B (en) | Method, system and device for transmitting data | |
| EP2525523B1 (en) | Load-aware dynamic cell selection with interference coordination by fractional reuse for cellular multi-user networks | |
| CN101998420A (en) | Method for setting up coordinated cell set in coordinated multi-point communication | |
| CN102457358B (en) | A kind of dispatching method of cooperative transmission and system | |
| Guimaraes et al. | Pricing-based distributed beamforming for dynamic time division duplexing systems | |
| GB2554698A (en) | Improvements in and relating to interference management in a communication network | |
| CN102548016A (en) | Method for achieving UE random access of user equipment and system | |
| CN102932938B (en) | The transmission method and device that up multiple-input and multiple-output is combined with uplink coordinated multiple spot | |
| CN102932931B (en) | Base station coordination method and device | |
| KR20130104369A (en) | Method for determining transmitting power in the mimo system based on cooperative transmitting | |
| CN107425885B (en) | CoMP (coordinated Multi-point) down-mixing dynamic clustering method based on coalition game | |
| CN105517161A (en) | Downlink resource distribution method and base station | |
| CN101931436A (en) | Method and device for joint transmission of downlink multiple cells and multiple users | |
| Xiong et al. | Centralized dynamic point blanking in LTE-advanced network for inter-cell interference mitigation | |
| CN105007628A (en) | Wireless resource distribution method and apparatus | |
| Gulia et al. | An investigation on the performance of intra-site and inter-site coordinated multipoint LTE-A networks | |
| CN103001731A (en) | Method and system for generating pre-coded matrixes for coordinated multi-point transmission | |
| Geraci et al. | Indoor massive MIMO deployments for uniformly high wireless capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201218 Address after: 224300 Dajian neighborhood committee, Haitong Town, Sheyang County, Yancheng City, Jiangsu Province Patentee after: Sheyang Tonghai Village Construction Development Co., Ltd Address before: 518057 No. 55 South Science and technology road, Shenzhen, Guangdong, Nanshan District Patentee before: ZTE Corp. |