CN102651879B - Method for selecting cooperative cells based on UE intelligent association and cooperative user equipment - Google Patents
Method for selecting cooperative cells based on UE intelligent association and cooperative user equipment Download PDFInfo
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- CN102651879B CN102651879B CN201110047906.5A CN201110047906A CN102651879B CN 102651879 B CN102651879 B CN 102651879B CN 201110047906 A CN201110047906 A CN 201110047906A CN 102651879 B CN102651879 B CN 102651879B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- 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
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- 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
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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Abstract
The invention relates to a method for selecting cooperative cells based on UE intelligent association and cooperative user equipment. The method comprises the steps as follows: as cooperative user equipment, receiving load state information of all adjacent cells of a serving cell and supportable service information of the adjacent cells that are collected and delivered through a broadcast message by the serving cell; performing priority queuing on the adjacent cells according to the load state information and the supportable service information, and selecting a cooperative cell set according to the queuing information; and reporting information about the cooperative cell set to a base station. The method and the equipment improve the efficiency of selecting cooperative cells and reduce information exchange between the UE and the network, thereby achieving the purpose of increasing system throughput.
Description
Technical field
The present invention relates to communication technical field, specifically it is based on UE (user equipment) intelligent association selecting collaboration minilocus approach
And collaboration user equipment.
Background technology
In existing mobile communication system, presence of intercell interference is the main cause of impact edge throughput, and is directed to LTE
For (Long Term Evolution) system, the interference of minizone is especially aobvious prominent, is IMT-Advanced with ITU (International Telecommunication Union)
The performance indications that (IMT-Advanced) system proposes, 3GPP (3G (Third Generation) Moblie partner program) proposes
LTE-Advanced technology, solving area interference becomes heat subject, and introduces COMP in LTE-Advanced
(Cooperative Multi-Point, multipoint cooperative) technology, for reducing neighbor cell interference, improves user's receipt signal matter
Measurer has milestone significance.COMP principle is such that between different base station passing through collaborative process interference, or avoids interference, or
Interference is converted into useful signal by person, and COMP can be divided into two classes by the angle processing from interference：One class is to be entered by base station end
The rational precoding of row makes signal spatially be spaced from each other, or passes through coordinated scheduling, allows different districts to try one's best same
Avoiding on time dispatching the user in same direction, thus reducing the co-channel interference of minizone it is ensured that the link-quality of user, carrying
High demodulation performance, this technology be referred to as cooperative scheduling/collaborative wave beam forming (Coordinate Schedule/Beamforming,
CS/CB)；An other class is the useful signal by the interference signal of other cells is converted into this community user, by lifting
Ensureing demodulation performance, this technology is referred to as Combined Treatment (Joint Processing, JP) to the signal to noise ratio of user.
In COMP technology, cooperation between all of transfer point is provided that very big cell edge and average cell are handled up
Amount, but need in the data sharing/CSI (Channel StateIndicator, channel condition information) of all of transfer point
Passback capacity that will be very high, complexity too high-leveled and difficult in realization.For reduce complexity, cooperation can only a limited number of transfer point it
Between be specific UE service.It is thus necessary to determine which transfer point forms a cooperation cell set and according to what principle
Form the set of this cooperation cell, set target in design cooperation cell is in an acceptable scheduling complexity and passback capacity
Under the premise of maximize cell throughout.
After introducing COMP transmission technology in LTE_A (senior long term evolution), the selection of cooperation cell is then the pass of research
Key point and focus.The method general idea come for collaboration user selecting collaboration collection currently for network side is：Based on each UE
Depending on strong interference source.The UE carrying out COMP must measure and report strong jamming set to the Serving cell of oneself, according to one
Determining threshold value selects suitable number of cell to make cooperation cell set.According to user to network side feedack, by network side
Chosen, be typically based on RSRP (Reference Signal Receiving Power, Reference Signal Received Power) report
Or long-term CSI statistical information come to obtain cooperation cell set.From the point of view of scheduling, the method is extremely complex.
On the other hand, COMP user needs more channel conditions of cell around measurement or disturbed condition, to network side feedback quantity
Ratio is larger, and network overhead ratio is larger, and complexity is higher.
Content of the invention
The main object of the present invention is to provide one kind to set based on UE intelligent association selecting collaboration minilocus approach and collaboration user
Standby, improve the selection efficiency of cooperation cell, reduce the information exchange of UE and network, improve throughput of system purpose to reach.
The technical solution adopted for the present invention to solve the technical problems is：
One kind is based on UE intelligent association selecting collaboration minilocus approach, and it includes：
Collaboration user reception Serving cell is collected by all neighbor cells of this Serving cell that broadcast issues
Business information can be supported in load status information and neighbor cell；
According to described load status information and can support that business information carries out priority queueing to described neighbor cell, and root
According to described queueing message selecting collaboration cell set；
Report described cooperation cell collection information to base station.
Preferably, described according to described load status information and can support that business information enters row major to described neighbor cell
Level is queued up.Specifically include：
Collaboration user according to described load status information and can support that business information carries out each phase using the method for weighted sum
The priority queueing of adjacent cell, forms the first priority query.
Preferably, described formation the first priority query, afterwards, further includes：
Collaboration user measures to all neighbor cells according to neighbor cell list, by the RSRP of described measurement result
Value and CSI value are estimated to the channel quality of each neighbor cell, and the method adopting weighted sum according to the quality of described channel
Each neighbor cell is carried out with the queuing of channel quality, forms the second priority query.
Preferably, after described formation the second priority query, further include：
By the channel quality of described each neighbor cell, described load status information with business information can be supported, described
The method carrying out identical PCI priority summation on the basis of first priority query and described second priority query is again to individual
Neighbor cell carries out priority queueing, forms third priority queue.
Preferably, described report described cooperation cell collection information to base station, specifically include：
Described cooperation cell collection information is reported by newly-increased signaling or is reported by the measurement signaling in signaling process
Described cooperation cell collection information.
Preferably, described report described cooperation cell collection information to base station, further include before：
According to collaboration user to cooperation cell number of sets change or can according to UE choose type of service change and
Cooperation cell collection need to be updated to trigger the described process reporting described cooperation cell collection information to base station.
A kind of collaboration user equipment, it includes：
Information receiving unit, is collected by, for receiving Serving cell, all phases of this Serving cell that broadcast issues
Business information can be supported in the load status information of adjacent cell and neighbor cell；
Queue up and choose unit, for according to described load status information and can support that business information is entered to described neighbor cell
Row major level is queued up, and according to described queueing message selecting collaboration cell set；
Information reporting unit, for reporting described cooperation cell collection information to base station.
Preferably, described queuing chooses unit, also includes：
First queue forms subelement, for according to described load status information and can support that business information adopts weighted sum
Method carry out the priority queueing of each neighbor cell, form the first priority query.
Preferably, described queuing chooses unit, also includes：Second queue forms subelement, for being arranged according to neighbor cell
Table measures to all neighbor cells, by the RSRP value and CSI value of the described measurement result channel matter to each neighbor cell
Amount is estimated, and using the method for weighted sum, each neighbor cell is carried out with the row of channel quality according to the quality of described channel
Team, forms the second priority query.
Preferably, described queuing chooses unit, also includes：3rd queue forms subelement,
By the channel quality of described each neighbor cell, described load status information with business information can be supported, described
The method carrying out identical PCI priority summation on the basis of first priority query and described second priority query is again to individual
Neighbor cell carries out priority queueing, forms third priority queue.
Implement technical scheme, have the advantages that：What the present invention provided is chosen based on UE intelligent association
Cooperation cell method and collaboration user equipment by the load of neighbor cell, Serving cell letter residing for professional ability and UE can be supported
Number quality information is associated, with selecting collaboration cell, it is possible to reduce the feedback quantity to cooperation cell channel quality for the UE, reaches and carries
Rise the purpose of handling capacity, also can reduce cooperation cell number simultaneously, save available resources, increase number of users, improve operator
Economic benefit.
Brief description
Fig. 1 is method flow diagram provided in an embodiment of the present invention；
Fig. 2 is the particular flow sheet of step S120 of Fig. 1；
Fig. 3 is device structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the structural representation of the queuing selection unit of Fig. 3；
Fig. 5 determines interaction figure for initial collaboration set of cells provided in an embodiment of the present invention；
Fig. 6 is that the changing load of cooperation cell provided in an embodiment of the present invention set cell updates cooperation cell set interaction
Figure；
Fig. 7 is that collaboration user provided in an embodiment of the present invention chooses business change renewal cooperation cell set interaction figure；
Fig. 8 is that interaction figure is gathered in collaboration user collaboration region provided in an embodiment of the present invention mobile update cooperation cell；
Fig. 9 is collaboration user removal collaboration region renewal cooperation cell set interaction figure provided in an embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides one kind to be based on UE intelligent association selecting collaboration minilocus approach, as shown in figure 1, the method bag
Include step：
S110, collaboration user receive Serving cell, and to be collected by this Serving cell that broadcast issues all adjacent little
Business information can be supported in the load status information in area and neighbor cell；
In this step S110, Serving cell collects the load status information of all neighbor cells and neighbor cell can be supported
Business information, the adjacent cell information collected and the information on load of oneself and the business information that can support are passed through by Serving cell
Broadcast is sent to collaboration user, and in LTE system information SIB1, (SystemInformation Block Type1, system is believed
Breath block 1) in cell-AccessRelatedInfo (cell access relevant information) information in add load status information and energy
Support type of service and both corresponding weight coefficient fields of difference.It is also required in homogeneous-frequency adjacent-domain information SIB4 (System simultaneously
Information-BlockType4, system information block 4) in Intra Freq Neigh Cell Info (homogeneous-frequency adjacent-domain is believed
Breath) increase load status information in information and type of service two field can be supported.Under system broadcasts for COMP Serving cell
Send out and still carry out by LTE standard.
S120, according to described load status information with can support that business information carries out priority row to described neighbor cell
Team, and according to described queueing message selecting collaboration cell set；
In other examples, more specifically, described step S120, according to described load status information with can support
Business information carries out priority queueing to described neighbor cell.As shown in Fig. 2 specifically including：
S121, collaboration user according to described load status information and can support that business information is carried out using the method for weighted sum
The priority queueing of each neighbor cell, forms the first priority query.
In this step S121, after collaboration user parses the load of each adjacent area and supports traffic type information, cooperation is used
Family carries out each priority of adjacent domain queuing using weighted sum method, and with PCI, (Phsyical CellIdentify, physical area is marked
Know) make a distinction for identifier, before the high person of priority comes, formation the first priority query.Collaboration user is first excellent by this
First level queue caching is first cached, the relevant parameter chosen as follow-up collaboration user selecting collaboration cell.
In addition, in other examples, further, as shown in Fig. 2 described formed in step S121 first preferential
After level queue, further include step：
S122, collaboration user measure to all neighbor cells according to neighbor cell list, by described measurement result
RSRP value and CSI value the channel quality of each neighbor cell is estimated, and weighted sum is adopted according to the quality of described channel
Method each neighbor cell is carried out with the queuing of channel quality, form the second priority query.
In this step S122, collaboration user measures to all neighbor cells according to neighbor cell list, to measurement
Result RSRP value and CSI value carry out each neighboring cell channel quality and are estimated, and the method for weighted sum can be adopted to carry out adjacent little
The channel quality in area is queued up, matter is measured come before, form the second priority query, equally can be identified with PCI.
In addition, in other examples, further, as shown in Fig. 2 described formed in step S122 second preferential
After level queue, further include step：
S123, the channel quality by described each neighbor cell, described load status information and business information can be supported,
Carry out the method for identical PCI priority summation again on the basis of described first priority query and described second priority query
Individual neighbor cell is carried out with priority queueing, forms third priority queue.
For collaboration user, it has had each neighboring cell channel quality condition information, also has each adjacent simultaneously
Local resource using and information on load, but also have the traffic type information that each neighbor cell can be supported, for having these
Information, the method carrying out identical PCI priority summation using above existing first priority query and the second priority query,
Again priority queueing is carried out to each neighbor cell, before the high person of priority comes, form third priority queue, same use
PCI is identified.Now, collaboration user can determine cooperation cell number according to oneself in the SINR value of Serving cell,
SINR value is higher, and required cooperation cell is fewer, and vice versa.
S130, report described cooperation cell collection information to base station.
In this step S130, specifically, described cooperation cell collection information is reported or by letter by newly-increased signaling
The measurement signaling in flow process is made to report described cooperation cell collection information.
In addition, in the above-described embodiments, further, according to collaboration user to cooperation cell number of sets change or can
Need to update with the type of service change chosen according to UE that cooperation cell collection triggers step S130 reports described association to base station
Make the process of cell set information.
The present invention provide method by the load of neighbor cell, serving cell signal residing for professional ability and UE can be supported
Quality information is associated, with selecting collaboration cell, it is possible to reduce the feedback quantity to cooperation cell channel quality for the UE, reaches lifting
The purpose of handling capacity, also can reduce cooperation cell number simultaneously, save available resources, increase number of users, improve the warp of operator
Ji benefit.
The more specifically Application Example of said method is provided below.
Application Example one：
Fig. 5 determines interaction figure for initial collaboration set of cells, and this process includes step：
301st, UE (user equipment) initial access network；When UE initial access network, UE attribute has not determined, now
Just there is not cooperation cell set.
302nd, determine collaboration user；When the attribute of UE is defined as collaboration user, just enters cooperation cell set and choose.
303rd, Serving cell carries out information exchange by X2 mouth and neighbor cell, obtains information on load and the energy of neighbor cell
Traffic type information supported etc..
304th, the adjacent cell information collected is handed down to collaboration user by system broadcast information by Serving cell；
305th, collaboration user parses the information on load after this broadcast message store queue；
After collaboration user parses the load of each adjacent area and supports traffic type information, each neighbour is carried out using weighted sum method
Area's priority queueing, before the high person of priority comes.
306th, collaboration user measurement, and the channel quality of each cell of queuing up；
Collaboration user measures to all neighbor cells according to neighbor cell list, to measurement result RSRP value and CSI
Value carries out each neighboring cell channel quality and is estimated, and the method for weighted sum can be adopted to carry out cell signal quality queuing, quality
Good come before.
307th, collaboration user selecting collaboration cell；
Collaboration user has each cell signal quality condition information, also has each local resource simultaneously and believes using with load
Breath, but also have the traffic type information that each cell can be supported, for having these information, weighted sum can be reused
Method, carries out priority queueing to each cell again, before the high person of priority comes, is equally identified using PCI.Now,
Collaboration user can determine cooperation cell number according to oneself in the SINR value of Serving cell, and the set of final cooperation cell will be by
Select.
308th, collaboration user reports cooperation cell aggregate information；
Collaboration user by the cooperation cell selected aggregate information, by measurement report or newly-increased to signal service little
Area, by X2 mouth, Serving cell signals which adjacent area becomes cooperation cell again.
309th, Serving cell and neighbor cell carry out information exchange by X2 mouth, and Serving cell can ask cooperation cell to be gone
Scheduling collaboration user.
Application Example two：
As shown in fig. 6, updating cooperation cell set interaction figure for the changing load of cooperation cell set cell, this process is：
When the traffic overload of certain cell in the concentration cooperation cell of cooperation cell, now need to update cooperation cell set.As：No. #3
Cell is former cooperation cell set cell, and now this cell load overload uses it is impossible to be re-used as cooperation cell, and collaboration user needs
Again reception system information, more each adjacent area is pressed with the method queuing of above-mentioned Application Example one, finally according to queuing priority more
The set of new cooperation cell, after renewal, cooperation cell aggregated result is：Source cooperation cell collection is：#1 (represents that numbering is：No. 1
Cooperation cell, similarly hereinafter), #2, #3 are updated to new cooperation cell collection and are：#1、#2、#7.This process specifically includes step：
401st, Serving cell carries out information exchange by X2 mouth and neighbor cell, obtains information on load and the energy of neighbor cell
Traffic type information supported etc..
402nd, cooperation cell concentrates cell cooperative to change；
403rd, the adjacent cell information collected is handed down to collaboration user by system broadcast information by Serving cell；
404th, collaboration user parses the information on load after this broadcast message store queue；
After collaboration user parses the load of each adjacent area and supports traffic type information, each neighbour is carried out using weighted sum method
Area's priority queueing, before the high person of priority comes.
405th, collaboration user measurement, and the channel quality of each cell of queuing up；
Collaboration user measures to all neighbor cells according to neighbor cell list, to measurement result RSRP value and CSI
Value carries out each neighboring cell channel quality and is estimated, and the method for weighted sum can be adopted to carry out cell signal quality queuing, quality
Good come before.
406th, collaboration user selecting collaboration cell；
Collaboration user has each cell signal quality condition information, also has each local resource simultaneously and believes using with load
Breath, but also have the traffic type information that each cell can be supported, for having these information, weighted sum can be reused
Method, carries out priority queueing to each cell again, before the high person of priority comes, is equally identified using PCI.Now,
Collaboration user can determine cooperation cell number according to oneself in the SINR value of Serving cell, and the set of final cooperation cell will be by
Select.
407th, collaboration user reports cooperation cell aggregate information；
Collaboration user by the cooperation cell selected aggregate information, by measurement report or newly-increased to signal service little
Area.
408th, Serving cell carries out the renewal of cooperation cell collection again by X2 mouth and neighbor cell.
409th, Serving cell and neighbor cell carry out information exchange by X2 mouth, and Serving cell can ask cooperation cell to be gone
Scheduling collaboration user.
Application Example three：
Fig. 7 chooses business for collaboration user and changes renewal cooperation cell set interaction figure, and this process is：When collaboration user choosing
When the business taking changes, for example, need special VIP business, because cooperation cell concentrates some cell a variety of causes not support this
Business, or when this business resource requirement cooperation cell concentrates some cells to be unsatisfactory for, collaboration user needs renewal cooperation little
Area gathers, and this scene needs the weighted value of type of service is reselected, and for example, type of service weights are predefined as general service
Weights and particular service weights, press above-mentioned Application Example one method selecting collaboration cell set again, this scheme through collaboration user
The cooperation cell set meeting collaboration user specific demand more can be chosen.Cooperation cell set needs to update result, such as：Source cooperates
Cell set is：#1, #2, #3, and for some reason, #2, #3 can not meet the specific demand of this collaboration user new business, assisted
Making user needs selecting collaboration set of cells again, and the cooperation cell collection after renewal is：#1、#4、#7.This process includes step：
501st, Serving cell carries out information exchange by X2 mouth and neighbor cell, obtains information on load and the energy of neighbor cell
Traffic type information supported etc..
502nd, the adjacent cell information collected is handed down to collaboration user by system broadcast information by Serving cell；
503rd, collaboration user parses the information on load after this broadcast message store queue；
After collaboration user parses the load of each adjacent area and supports traffic type information, each neighbour is carried out using weighted sum method
Area's priority queueing, before the high person of priority comes.
504th, collaboration user measurement, and the channel quality of each cell of queuing up；
Collaboration user measures to all neighbor cells according to neighbor cell list, to measurement result RSRP value and CSI
Value carries out each neighboring cell channel quality and is estimated, and the method for weighted sum can be adopted to carry out cell signal quality queuing, quality
Good come before.
505th, collaboration user is chosen business and is changed, and modification type of service weighted value is carried out again to all neighbor cells
Queue up, choose new cooperation cell collection.
506th, collaboration user reports cooperation cell aggregate information；
Collaboration user by the cooperation cell selected aggregate information, by measurement report or newly-increased to signal service little
Area.
507th, Serving cell carries out the renewal of cooperation cell collection again by X2 mouth and neighbor cell.
508th, Serving cell and neighbor cell carry out information exchange by X2 mouth, and Serving cell can ask cooperation cell to be gone
Scheduling collaboration user.
Application Example four：
Fig. 8 is that interaction figure is gathered in collaboration user collaboration region mobile update cooperation cell, and this process is：When collaboration user exists
When moving in collaboration region, the measurement result of collaboration user will move with and changes, this be initially accessed after determine cooperate little
The SINR value of the cell channel quality (RSRP and CSI) of area's set and collaboration user is entirely different, now needs collaboration user weight
New measurement.According to up-to-date measurement result, by the method selecting collaboration set of cells again of Application Example one, finally cooperation is used
Family reports the cooperation cell aggregate information of renewal to Serving cell.It is to gather source cooperation cell that cooperation cell set updates result
For：#1, #2, #3, are updated to：Cooperation cell collection after collaboration user mobile update is combined into：#1、#2、#7.
This process specifically includes：
601st, Serving cell carries out information exchange by X2 mouth and neighbor cell, obtains information on load and the energy of neighbor cell
Traffic type information supported etc..
602nd, the adjacent cell information collected is handed down to collaboration user by system broadcast information by Serving cell；
603rd, collaboration user parses the information on load after this broadcast message store queue；
After collaboration user parses the load of each adjacent area and supports traffic type information, each neighbour is carried out using weighted sum method
Area's priority queueing, before the high person of priority comes.
604th, collaboration user moves in collaboration region, and the RSRP of each adjacent area changes, SINR and CSI of collaboration user sends out
Raw change.
605th, collaboration user remeasures, and the channel quality of each cell of queuing up.
606th, collaboration user selecting collaboration cell.
607th, collaboration user reports cooperation cell aggregate information；
Collaboration user by the cooperation cell selected aggregate information, by measurement report or newly-increased to signal service little
Area.
608th, Serving cell carries out the renewal of cooperation cell collection again by X2 mouth and neighbor cell.
609th, Serving cell and neighbor cell carry out information exchange by X2 mouth, and Serving cell can ask cooperation cell to be gone
Scheduling collaboration user.
Embodiment five：
Fig. 9 gathers interaction figure for collaboration user removal collaboration region renewal cooperation cell, and this process is：When collaboration user from
When collaboration region moves on to Serving cell central area, collaboration user need to remeasure, and the up-to-date measurement knot according to Serving cell
Fruit RSRP and SINR value confirm that oneself has met central user standard, if it is satisfied, then deleting cooperation cell collection information, converge simultaneously
Offer Serving cell it is desirable to service cell updating cooperation cell aggregate information, it is collaboration user that last Serving cell cancels this UE.
Because source cooperation cell collection is combined into by collaboration user removal collaboration region renewal cooperation cell collection schematic diagram：#1, #2, #3, update
For：Cooperation cell collection after collaboration user mobile update is combined into：Empty set.This process specifically includes step：
701st, Serving cell carries out information exchange by X2 mouth and neighbor cell, obtains information on load and the energy of neighbor cell
Traffic type information supported etc..
702nd, the adjacent cell information collected is handed down to collaboration user by system broadcast information by Serving cell；
703rd, collaboration user parses the information on load after this broadcast message store queue.
After collaboration user parses the load of each adjacent area and supports traffic type information, each neighbour is carried out using weighted sum method
Area's priority queueing, before the high person of priority comes.
704th, collaboration user moves into Serving cell center by collaboration region.
705th, collaboration user remeasures, and determines that oneself moves into Serving cell center by collaboration region according to SINR value.
706th, collaboration user deletes cooperation cell.
707th, collaboration user reports cooperation cell aggregate information；
Collaboration user by the cooperation cell selected aggregate information, by measurement report or newly-increased to signal service little
Area.
708th, Serving cell (deletes cooperation cell letter by the renewal that X2 mouth and neighbor cell carry out cooperation cell collection again
Breath).
709th, cancel collaboration user.
The embodiment of the present invention also provides a kind of collaboration user equipment, as shown in figure 3, including：
Information receiving unit 210, is collected by, for receiving Serving cell, this Serving cell institute that broadcast issues
There are the load status information of neighbor cell and neighbor cell can support business information；
Queue up and choose unit 220, for according to described load status information and business information can be supported to described adjacent little
Area carries out priority queueing, and according to described queueing message selecting collaboration cell set；
Information reporting unit 230, for reporting described cooperation cell collection information to base station.
In other examples, more specifically, described queuing chooses unit 220, as shown in figure 4, also including：
First queue formed subelement 221, for according to described load status information and can support business information using plus
The method of power sum carries out the priority queueing of each neighbor cell, forms the first priority query.
In other examples, further, described queuing chooses unit 220, as shown in figure 4, also including：Second
Queue forms subelement 222, for being measured to all neighbor cells according to neighbor cell list, by described measurement result
RSRP value and CSI value the channel quality of each neighbor cell is estimated, and weighted sum is adopted according to the quality of described channel
Method each neighbor cell is carried out with the queuing of channel quality, form the second priority query.
Described queuing chooses unit 220, as shown in figure 4, also including：3rd queue forms subelement 223, for by institute
State the channel quality of each neighbor cell, described load status information and business information can be supported, in described first priority query
With the method carrying out the summation of identical PCI priority on the basis of described second priority query again individual neighbor cell is carried out excellent
First level is queued up, and forms third priority queue.
The collaboration user equipment that the present invention provides by the load of neighbor cell, service can be supported residing for professional ability and UE
Cell signal quality information is associated, with selecting collaboration cell, it is possible to reduce the feedback quantity to cooperation cell channel quality for the UE,
Reach the purpose of lifting handling capacity, also can reduce cooperation cell number simultaneously, save available resources, increase number of users, improve fortune
The economic benefit of battalion business.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Any modification, equivalent and improvement of being made within principle etc., should be included within the scope of the present invention.
Claims (6)
1. one kind is based on UE intelligent association selecting collaboration minilocus approach it is characterised in that including：
Collaboration user receives the load that Serving cell is collected by all neighbor cells of this Serving cell that broadcast issues
Business information can be supported in status information and neighbor cell；
According to described load status information and can support that business information carries out priority queueing to described neighbor cell, and according to institute
State queueing message selecting collaboration cell set；
Report described cooperation cell collection information to base station；
Wherein, described according to described load status information and can support that business information carries out priority row to described neighbor cell
Team, specifically includes：
According to described load status information and to support that business information is carried out using the method for weighted sum each adjacent little for collaboration user
The priority queueing in area, forms the first priority query；
Collaboration user measures to all neighbor cells according to neighbor cell list, by the reference signal of described measurement result
Related power RSRP value and channel condition information CSI value are estimated to the channel quality of each neighbor cell, and according to described letter
The quality in road carries out the queuing of channel quality using the method for weighted sum to each neighbor cell, forms the second priority query.
2. method as claimed in claim 1 is it is characterised in that after described formation second priority query, further include：
By the channel quality of described each neighbor cell, described load status information with business information can be supported, described first
The method carrying out identical PCI priority summation on the basis of priority query and described second priority query is again to each adjacent
Cell carries out priority queueing, forms third priority queue.
3. method as claimed in claim 1, it is characterised in that described report described cooperation cell collection information to base station, is specifically wrapped
Include：
Described cooperation cell collection information is reported by newly-increased signaling or is reported by the measurement signaling in signaling process described
Cooperation cell collection information.
4. method as claimed in claim 3, it is characterised in that described report described cooperation cell collection information to base station, is entered before
One step includes：
According to collaboration user, cooperation cell number of sets is changed or can be needed more according to the type of service change that UE chooses
New cooperation cell collection is triggering the described process reporting described cooperation cell collection information to base station.
5. a kind of collaboration user equipment is it is characterised in that include：
Information receiving unit, for receiving Serving cell, to be collected by this Serving cell that broadcast issues all adjacent little
Business information can be supported in the load status information in area and neighbor cell；
Queue up and choose unit, for according to described load status information with to support that business information is carried out to described neighbor cell excellent
First level is queued up, and according to described queueing message selecting collaboration cell set；
Information reporting unit, for reporting described cooperation cell collection information to base station；
Wherein, described queuing chooses unit, also includes：
First queue forms subelement, for according to described load status information and can support that business information adopts the side of weighted sum
Method carries out the priority queueing of each neighbor cell, forms the first priority query；
Second queue forms subelement, for being measured to all neighbor cells according to neighbor cell list, by described survey
The reference signal related power RSRP value of amount result and channel condition information CSI value are commented to the channel quality of each neighbor cell
Estimate, and using the method for weighted sum, each neighbor cell is carried out according to the quality of described channel with the queuing of channel quality, form the
Two priority queries.
6. collaboration user equipment as claimed in claim 5, it is characterised in that unit is chosen in described queuing, also includes：3rd queue
Form subelement,
By the channel quality of described each neighbor cell, described load status information with business information can be supported, described first
The method carrying out identical PCI priority summation on the basis of priority query and described second priority query is again to each adjacent
Cell carries out priority queueing, forms third priority queue.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110047906.5A CN102651879B (en) | 2011-02-28 | 2011-02-28 | Method for selecting cooperative cells based on UE intelligent association and cooperative user equipment |
| PCT/CN2011/082490 WO2012116556A1 (en) | 2011-02-28 | 2011-11-18 | Method for selecting cooperative cells based on ue intelligent association and cooperative user equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110047906.5A CN102651879B (en) | 2011-02-28 | 2011-02-28 | Method for selecting cooperative cells based on UE intelligent association and cooperative user equipment |
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| CN102651879A CN102651879A (en) | 2012-08-29 |
| CN102651879B true CN102651879B (en) | 2017-02-08 |
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| CN105307149A (en) * | 2014-06-13 | 2016-02-03 | 中兴通讯股份有限公司 | Method and device for managing neighbour relationships |
| CN106604311B (en) * | 2015-10-13 | 2020-11-17 | 华为技术有限公司 | Method and device for selecting transmission node participating in coordinated multi-point transmission |
| CN115066004A (en) * | 2016-01-21 | 2022-09-16 | 索尼公司 | Electronic device and communication method |
| CN109889238B (en) * | 2019-03-13 | 2021-08-13 | 西安交通大学 | Multi-cell cooperative transmission method based on interference utilization |
| WO2022183407A1 (en) * | 2021-03-03 | 2022-09-09 | Oppo广东移动通信有限公司 | Communication method, device and storage medium |
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| WO2012116556A1 (en) | 2012-09-07 |
| CN102651879A (en) | 2012-08-29 |
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