CN104080177B - Cooperative multi-point dispatching method and base station - Google Patents
Cooperative multi-point dispatching method and base station Download PDFInfo
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Abstract
The present invention provides a kind of cooperative multi-point (CoMP) dispatching method and corresponding base stations.Specifically, which comprises determining that one or more CoMP user combinations in CoMP collaboration set；It is combined for each CoMP user and determines one or more transmission states, and calculate the dispatching priority of each transmission state；Highest priority is selected from the corresponding dispatching priority of one or more of transmission states that one or more of CoMP users combine, user's scheduling is carried out according to the corresponding transmission state of the highest priority.Method provided by the invention can reduce the scheduling complexity of communication system well.
Description
Technical field
The present invention relates to the communications field, espespecially a kind of cooperative multi-point (CoMP, coordinated multi-point) scheduling
Method, and realize the base station of this method.
Background technique
Cooperative multi-point (CoMP, coordinated multi-point) technology passes through the joint to multiple cells (cell)
It dispatches with cooperation transmission and reduces the interference of minizone, improve system performance.Theoretically, the multiple CoMP schemes of CoMP scheduling requirement
Between can flexibly, dynamically switch, to guarantee the optimal performance of CoMP.Specifically, CoMP scheme may include: that cooperation is adjusted
Degree/dynamic point is closed (CS/DPB, coordinated scheduling/dynamic point blanking), is dynamically clicked
/ dynamic point closing (DPS/DPB, dynamic point selection/dynamic point blanking), only DPS are selected,
And joint transmission (JT, joint transmission) etc..There are many possible transmission state, CoMP for each CoMP scheme
The target of scheduling is exactly to select optimal transmission state.
Ideal CoMP scheduling searches traversal thoroughly to the progress of all possible transmission state, is every kind of possible transmission state meter
Its dispatching priority is calculated, actual user's scheduling is carried out according to the transmission state of highest priority.It is not difficult to find out that though the above method
Preferably CoMP performance can be obtained, but complexity is higher.
Summary of the invention
The embodiment of the invention provides a kind of cooperative multi-point dispatching methods, and realize the base station of this method.
Specifically, the embodiment of the invention provides a kind of cooperative multi-point CoMP dispatching methods, comprising:
A, one or more CoMP user combinations in CoMP collaboration set are determined；
B, one or more transmission states are determined for the combination of each CoMP user, and the scheduling for calculating each transmission state is excellent
First grade；
C, one or more of transmission that all CoMP users combine from the combination of one or more of CoMP users
Highest priority is selected in the corresponding dispatching priority of state, user is carried out according to the corresponding transmission state of the highest priority
Scheduling.
Before step A, this method further comprises: the collaboration set in communication system being divided at least two and is virtually assisted
Work collects, using each virtual corporation collection as the CoMP collaboration set.
Wherein, step A includes:
It is determining according to the CoMP user number in the CoMP collaboration set size and/or the CoMP collaboration set at the same it is schedulable most
Big CoMP user number X_max, or preset while schedulable maximum CoMP user number X_max；
The CoMP user is selected from the CoMP user in the CoMP collaboration set according to the CoMP user number x of scheduling simultaneously
Combination, wherein the value of the CoMP user number x of scheduling simultaneously is from 0 to described while schedulable maximum CoMP user number
The integer of X_max.
Step B further comprises: the transmission of the CoMP user combination is selected according to pre-set CoMP scheme type
State abandons the transmission state with the CoMP scheme type mismatch.
Step B further comprises: selecting the CoMP according to number is collected for the different pre-set measurements of CoMP user
The transmission state of user's combination abandons transmission state corresponding with the CoMP user that the measurement collection number is not inconsistent.
Step B further comprises: clicking according to for the pre-set transmission for participating in cooperation transmission of different CoMP users
The transmission state for selecting the CoMP user combination, abandons the CoMP user and is participated in by other transfer points in the CoMP collaboration set
The corresponding transmission state of cooperation transmission.
This method further comprises: the CSI number of CoMP user feedback is preset, so that the CSI number is less than base station
Configurable CSI number upper limit value.
Specifically, the embodiment of the invention provides a kind of base stations, comprising:
User combines determining module, for determining one or more CoMP user combinations in CoMP collaboration set；
Transmission state determining module for determining one or more transmission states for the combination of each CoMP user, and calculates
The dispatching priority of each transmission state；
Cooperation transmission execution module, for CoMP users combinations all from the combination of one or more of CoMP users
Highest priority is selected in the corresponding dispatching priority of one or more of transmission states, it is corresponding according to the highest priority
Transmission state carry out user's scheduling.
Specifically, user combines determining module and is used for:
It is determining according to the CoMP user number in the CoMP collaboration set size and/or the CoMP collaboration set at the same it is schedulable most
Big CoMP user number X_max, or preset while schedulable maximum CoMP user number X_max；
The CoMP user is selected from the CoMP user in the CoMP collaboration set according to the CoMP user number x of scheduling simultaneously
Combination, wherein the value of the CoMP user number x of scheduling simultaneously is from 0 to described while schedulable maximum CoMP user number
The integer of X_max.
Specifically, transmission state determining module is used for:
The transmission state of CoMP user combination is selected according to pre-set CoMP scheme type, abandon with it is described
The transmission state of CoMP scheme type mismatch.
Specifically, transmission state determining module is used for:
According to the transmission shape for selecting the CoMP user combination for the different pre-set measurement collection numbers of CoMP user
State abandons transmission state corresponding with the CoMP user that the measurement collection number is not inconsistent.
Specifically, transmission state determining module is used for:
The CoMP user group is selected according to for the pre-set transfer point for participating in cooperation transmission of different CoMP users
The transmission state of conjunction abandons the CoMP user by other transfer points in the CoMP collaboration set and participates in the corresponding biography of cooperation transmission
Defeated state.
As can be seen that the CoMP dispatching method that the embodiment of the present invention proposes can reduce the complexity of poor search method, and connect
The attainable CoMP optimal performance of nearly poor search method institute.Further, the embodiment of the present invention can also greatly reduce scheduling
Complexity, while keeping the performance loss of communication system as small as possible.
Detailed description of the invention
Fig. 1 is the flow chart of cooperative multi-point (CoMP) dispatching method in one embodiment of the invention；
Fig. 2 shows an application scenarios of the CoMP dispatching method that the embodiment of the present invention proposes；
Fig. 3 is the flow chart of CoMP dispatching method in one embodiment of the invention；
Fig. 4 is the structural schematic diagram that the base station of dispatching method shown in Fig. 1 is realized in one embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
Traversal bring complexity is searched thoroughly in order to reduce, and the embodiment of the present invention proposes a kind of cooperative multi-point (CoMP) scheduling
Method, to reduce the complexity of CoMP scheduling.Further, the method that the embodiment of the present invention proposes can be approached largely
The optimal CoMP performance of poor search method.Specifically, the process such as Fig. 1 institute for the cooperative multi-point dispatching method that the embodiment of the present invention proposes
Show.
In step 101, CoMP collaboration set is determined.At one in the specific implementation, CoMP collaboration set includes at least two transfer point
(TP, transmission point), the transfer point can be base station (eNodeB) or radio frequency remoto module (RRE,
Radio Remote Unit) etc..For example, Fig. 2 shows CoMP collaboration set include 3 TP.
In step 102, one or more CoMP user combinations in the CoMP collaboration set are determined.
At one in the specific implementation, CoMP user combination can be according to the CoMP user in collaboration set size and/or collaboration set
Number determines.Specifically, the transfer point in CoMP collaboration set can dispatch 0, one or more CoMP users simultaneously, and every kind of scheduling is all
Constitute a CoMP user combination.
In step 103, one or more transmission states are determined for the combination of each CoMP user, and calculate each transmission state
Dispatching priority.
It may be noted that each CoMP user combination instruction is one group by the transfer point scheduling in CoMP collaboration set
CoMP user.There are at least two transfer point in CoMP collaboration set, these transfer points combined with the CoMP user in CoMP user
Between there may be a variety of corresponding relationships.For example, CoMP collaboration set includes TP1 and TP2, some CoMP user group be combined into UE1 and
UE2, then it is that TP1 dispatches UE1 and TP2 dispatches UE2 that the transmission state of the CoMP collaboration set, which includes: state 1,；State 2 is TP1 scheduling
UE2 and TP2 scheduling UE1.
After determining transmission state, its dispatching priority can be calculated according to the methods of ratio justice, poll, max carrier to interference
Grade, details are not described herein again.
In step 104, highest priority is selected from the corresponding dispatching priority of above-mentioned all transmission states, according to highest
The corresponding transmission state of priority carries out user's scheduling.
At one in the specific implementation, above-mentioned steps 101-104 can by CoMP collaboration set one of transfer point (such as
Base station etc.) it executes.On each running time-frequency resource, base station all can carry out user's scheduling by executing step 101-104.Practical communication
In, step 101 be quasi-static namely CoMP collaboration set once it is determined that, do not change within a certain period of time.Correspondingly,
The user that base station repeats step 102-104 and can be realized on each running time-frequency resource dispatches.
Fig. 2 shows an application scenarios of the CoMP dispatching method that the embodiment of the present invention proposes.In FIG. 2, it is assumed that TP1,
Corresponding three cells of TP2, TP3 are a CoMP collaboration set, or are scheduling collection (scheduling cluster).Wherein,
TP1 is base station (eNodeB), and TP2 and TP3 are RRE, and TP1 is connect with TP2, TP3 by optical fiber respectively.The service of UE1 and UE2
It is the serving cell of TP2, UE5 and UE6 is TP3 that cell, which is the serving cell of TP1, UE3 and UE4,.UE1 and UE5 is that single cell is used
Family (or being non-CoMP user), is indicated in Fig. 2 with solid square；Assuming that UE2, UE3 and UE4 are CoMP user and measurement collection
Size is 2, then these three users can be referred to as 2-TP CoMP user, it is assumed that UE6 is the CoMP user that measurement collection size is 3,
It is then referred to alternatively as 3-TP CoMP user, CoMP user is indicated with dashed lined box in Fig. 2.If using (serving cell, the
One cooperation cell, the second cooperation cell) form indicate the serving cell of CoMP user and cooperation cell in Fig. 2, then are as follows: UE2
(TP1, TP3), UE3 (TP2, TP1), UE4 (TP2, TP3), UE6 (TP3, TP2, TP1).Referring to Fig. 2 shows scene, say
The specific implementation of bright CoMP collaboration set combined dispatching on some running time-frequency resource.
In step 301, it determines collaboration set size M, and determines the CoMP user number N in the collaboration set.Correspondingly, the association
Make to collect under actual transmissions state while the CoMP user number x of scheduling may be 0,1,2 ..., X_max, wherein schedulable simultaneously
Maximum CoMP user number X_max=MIN (M, N).It is taken as can be seen that the CoMP user number x dispatched simultaneously shares 1+X_max kind
Value, X_max are determined by the relatively small parameter in this 2 parameters of the CoMP user number N in collaboration set size M and collaboration set.
Specifically, there are 4 CoMP users: UE2, UE3, UE4, UE6 in Fig. 2.Since the collaboration set size in Fig. 2 is 3, then
Maximum CoMP user number X_max schedulable simultaneously is 3 in one running time-frequency resource.That is, the CoMP of scheduling is used simultaneously in Fig. 2
Amount x may be 0,1,2,3.
In step 302, the 1+X_max kind possibility determined is traversed, for the CoMP user number x (x=of scheduling simultaneously
0,1,2 ..., X_max) each value, find out all possible CoMP user combination under the value.
It in Fig. 2, as x=0, is scheduled in CoMP collaboration set without CoMP user, each cell carries out single cell and passes
It is defeated.
As x=1, cooperation is concentrated with 1 CoMP user and is scheduled, then possible CoMP user combination has 4 kinds: UE2
Being scheduled to CoMP user, perhaps UE3 is scheduled to CoMP user perhaps UE4 is scheduled to CoMP user or UE6 and is adjusted
Spend into CoMP user.
As x=2, cooperation is concentrated with 2 CoMP users and is scheduled, then possible CoMP user combination has 6 kinds: UE2
Being scheduled to CoMP user with UE3, perhaps UE2 and UE4 is scheduled to CoMP user or UE2 and UE6 is scheduled to CoMP and uses
Perhaps UE3 and UE4 is scheduled to CoMP user perhaps UE3 and UE6 is scheduled to CoMP user or UE4 and UE6 and is adjusted at family
Spend into CoMP user.
As x=3, cooperation is concentrated with 3 CoMP users and is scheduled, then possible CoMP user combination have 4 kinds: UE2,
UE3, UE4 are scheduled to CoMP user, and perhaps UE2, UE3, UE6 are scheduled to CoMP user or UE2, UE4, UE6 are scheduled
CoMP user is scheduled at CoMP user or UE3, UE4, UE6.
As can be seen that CoMP user combination is selected in CoMP users all in collaboration set.
In step 303, every kind of CoMP user in step 302 is combined, traverses all possible transmission state, counted
Calculate the dispatching priority under every kind of transmission state.
In practical application, to reduce calculation times, reducing scheduling complexity, list cell transmission when x=0 can be first determined
Scheduling result.Specifically, dispatching priority when each user in each cell is scheduled to single cell transmission is calculated, is had most
The user of high priority is scheduled.Assuming that the scheduling result of single cell transmission are as follows: dispatch UE1 in TP1, dispatched in TP2
UE4 dispatches UE5 in TP3.
Further, when x is other values, for the TP not being related in CoMP user combination, single cell is kept to pass
Defeated scheduling result.For example, in x=1, the case where CoMP user is scheduled to for UE2, possible transmission state is being determined
And during calculating dispatching priority, since UE2 relates only to TP1 and TP3, then TP2 is scheduled according to single cell transmission,
Namely UE4 is dispatched in TP2.Referring to Fig. 2, the possible transmission state of the collaboration set has following 4 kinds: CS corresponding state, only DPS
The corresponding state of corresponding state, DPS/DPB, the corresponding state of JT.Specifically, the corresponding state of CS are as follows: dispatched in TP1
UE2, scheduling UE4, TP3 are in off status (muting) in TP2；The only corresponding state of DPS are as follows: in TP1 dispatch UE1,
UE4 is dispatched in TP2, UE2 is dispatched in TP3；The corresponding state of DPS/DPB are as follows: TP1 be in off status, in TP2 dispatch UE4,
UE2 is dispatched in TP3；The corresponding state of JT are as follows: dispatch UE2 simultaneously in TP1 and TP3, dispatch UE4 in TP2.
It is the case where UE6 is scheduled to CoMP user when for x=1, as shown in table 1, possible in a specific example
Transmission state has 17 kinds.Compared with poor search method, the significant lower transmission state of dispatching priority has been abandoned in table 1, than
Such as according to the dispatching priority of single cell transmission it is found that (2, muting, 6), (3, muting, 6), (muting, muting, 6)
The dispatching priority of these transmission states is certainly less than (1, muting, 6), thus in step 303 only retain transmission state 1 (1,
Muting, 6), and other three kinds of transmission states are abandoned, to reduce computation complexity.It should be noted that in computational chart
In 1 when the dispatching priority of every kind of transmission state, base station needs to obtain channel quality indicator of the UE6 under above-mentioned transmission state
(CQI, Channel Quality Indicator).Specifically, CQI can feed back to base station by UE6, be also possible to base station pair
Other multiple channel state informations (CSI, channel state information) of user feedback obtain after being updated.
If base station can not update the CQI under certain transmission state out, the transmission state will because can not calculating dispatching priority and
It is dropped.It, the case where UE2 and UE3 are scheduled to CoMP user when for x=2, as shown in table 2, can in another specific example
The transmission state of energy has 3 kinds.
1 UE6 of table is scheduled to possible transmission state in the case where CoMP user
Table 2 UE2 and UE3 is scheduled to possible transmission state in the case where CoMP user
| Transmission state number | TP1 | TP2 | TP3 |
| 1 | Off status | 3(CS) | 2(DPS/DPB) |
| 2 | 3(DPS/DPB) | Off status | 2 (only DPS) |
| 3 | 3 (only DPS) | 4 | 2 (only DPS) |
It may be noted that step 303 may include multiple sub-steps executed parallel, every sub-steps traverse a kind of CoMP use
The transmission state of family combination.For example, step 303 includes 17 sub-steps executed parallel for scene shown in Fig. 2.
In step 304, the dispatching priority of more all possible transmission state, by the corresponding transmission of highest priority
State is determined as the scheduling result of the CoMP collaboration set on the running time-frequency resource.
For each running time-frequency resource for needing to dispatch, for example it can be each broadband (wideband) or subband
(subband) or resource block (RB, resource block) or Transmission Time Interval (TTI, transmission
Time interval), the scheduling knot by executing search calculation process shown in Fig. 3, on available corresponding running time-frequency resource
Fruit.
As can be seen that can guarantee optimal CoMP performance using traditional search traversal method thoroughly and be scheduled, but complexity
It is very high.In comparison, the complexity of CoMP scheduling can be effectively reduced in the CoMP dispatching method that the embodiment of the present invention proposes, together
When guarantee system performance close to optimal CoMP performance.
Further, the embodiment of the present invention can further decrease under the premise of guaranteeing that performance loss is as small as possible
The complexity of CoMP scheduling.
For example, the embodiment of the present invention can do further maximum CoMP user number X_max schedulable simultaneously in step 301
Limitation.It is assumed that X_max is set in advance as 1, then as x=2, cooperation is concentrated with the feelings that 2 CoMP users are scheduled in Fig. 2
Condition, and cooperation is concentrated with the case where 3 CoMP users are scheduled without traversing again as x=3, can directly skip or
Person abandons.
For example, the embodiment of the present invention can collaboration set size M in conditioning step 301.For larger in communication system
Collaboration set, the scheduler in base station is classified as multiple small virtual corporation collection and is grouped scheduling.Correspondingly, each virtual
The CoMP dispatching method that Fig. 1-3 proposition all can be used in collaboration set is scheduled.For example, if a CoMP cooperation is concentrated with 9
Cell, CoMP user number are much larger than collaboration set size M, then the CoMP user number x of scheduling can be simultaneously on a running time-frequency resource
0,1,2,…,9.The value of the CoMP user number x dispatched simultaneously for every kind, possible CoMP user combination is very more, and every kind
CoMP user combine corresponding transmission state also there are many.If being 3 by 9 cell points using the above-mentioned packet scheduling referred to
A virtual corporation collection, each virtual corporation collection have 3 cell, then each virtual corporation collection is dispatched simultaneously on a running time-frequency resource
CoMP user number x value be 0,1,2,3.In this case, the number of CoMP user combination is greatly decreased, and results in the need for traversing
Transmission state also accordingly reduce, to reduce the complexity of scheduling.
For example, the embodiment of the present invention can limit dynamic CoMP scheme switching, only CoMP collaboration set is allowed to run a type
The CoMP scheme of type.For example, CoMP scheme to be limited to the state for only allowing to dispatch CS, then certain CoMP user is combined,
When executing step 103 or 303, the transmission state needed to be traversed for will greatly reduce.CoMP user is scheduled to UE6 in table 1
In case where, after CoMP scheme is limited to CS, it need to only calculate the dispatching priority of state 1-3, other 14 kinds of state (i.e. shapes
State 4-17) it is rejected.By taking table 2 as an example, after being limited to CS, this three state is rejected.
For example, since the parameters such as measurement collection number or the transfer point for participating in cooperation transmission are that each CoMP user requires
It is independently arranged, the embodiment of the present invention can limit the measurement collection number of each CoMP user or join for each CoMP user is specified
With the transfer point of cooperation transmission.It combines accordingly for certain CoMP user, when executing step 103 or 303, needs to be traversed for
Transmission state will greatly reduce.For example, in case where UE6 is scheduled to CoMP user in table 1, if CoMP measured
Collection number be limited to 2, then scheduling will be directed to 2-TP CoMP user, namely need to only calculate transmission state 1,4,6,12 scheduling it is excellent
First grade.For another example, if the transfer point for participating in cooperation transmission is limited to TP1 and TP3, it is meant that TP2 is according to single cell transmission
Without participating in cooperation transmission in this scheduling, i.e. TP2 dispatches UE4, then base station need to only calculate the tune of transmission state 2,5,7,14
Spend priority.For another example, by taking table 2 as an example, UE2 and UE3 are 2-TP CoMP user, if the measurement collection number of UE2 and UE3 limits
It is 2, the transmission state in table 2 is not necessarily to give up.It may be noted that identical or different measurement can be limited different CoMP users
Collect number, the transfer point of identical or different participation cooperation transmission can also be specified for different CoMP users.
For example, base station can limit the CSI number of CoMP user feedback when user's access base station configures feedback parameter, from
And reduce scheduling complexity.It may be noted that the configuration belongs to high-level signaling layer, can remain unchanged the long period.Specifically, when time
When going through possible transmission state under the combination of certain CoMP user, base station only obtains the corresponding CSI of the transmission state and could calculate
Dispatching priority.Therefore, the CSI number of CoMP user feedback is reduced, and the transmission state needed to be traversed for can also be reduced therewith.Than
Such as, when the CSI number of CoMP user feedback is limited to 1, certain CoMP user is combined, is traversing all possible transmission
When state, transmission state corresponding with the CSI of CoMP user feedback need to be only traversed.When the CSI number of CoMP user feedback
When being limited to 2 or 3, base station updates to obtain the CQI under other transmission states from the CSI of user feedback, so that base station needs to be traversed for
More transmission states.For example, base station not only needs to be traversed for the corresponding transmission state of CSI of feedback, it is also necessary to which traversal updates
The corresponding transmission state of the CQI arrived, calculates the dispatching priority of these transmission states.Under normal circumstances, the configurable CSI in base station
Number upper limit value is 4, then the CSI number that CoMP user is fed back can be set in advance as 1,2 or 3, to abandon a part of transmission
State achievees the effect that reduce complexity.
The above-mentioned dispatching method for further decreasing complexity can be individually used in Fig. 1-3, or be used in any combination, from
And preferably reduce the scheduling complexity of base station.
The embodiment of the invention also provides a kind of base stations, and structural schematic diagram is referring to fig. 4, comprising:
User combines determining module 401, for determining one or more CoMP user combinations in CoMP collaboration set；
Transmission state determining module 402 for determining one or more transmission states for the combination of each CoMP user, and is counted
Calculate the dispatching priority of each transmission state；
Cooperation transmission execution module 403, it is one or more of for being combined from one or more of CoMP users
Highest priority is selected in the corresponding dispatching priority of transmission state, is carried out according to the corresponding transmission state of the highest priority
User's scheduling.
As can be seen that scheduler increases in user's scheduling feature, using user for base station shown in Fig. 4
Combination determining module 401, transmission state determining module 402 and cooperation transmission execution module 403 are to reduce the complexity that CoMP is dispatched
Degree.Specifically, base station shown in Fig. 4 can be realized by the hardware configuration being made of processing units such as storage unit and CPU etc.
Function.
At one in the specific implementation, user's combination determining module 401 is used for:
It is determining according to the CoMP user number in the CoMP collaboration set size and/or the CoMP collaboration set at the same it is schedulable most
Big CoMP user number X_max, or preset while schedulable maximum CoMP user number X_max；
The CoMP user is selected from the CoMP user in the CoMP collaboration set according to the CoMP user number x of scheduling simultaneously
Combination, wherein the value of the CoMP user number x of scheduling simultaneously is from 0 to described while schedulable maximum CoMP user number
The integer of X_max.
At one in the specific implementation, transmission state determining module 402 is used for:
The transmission state of CoMP user combination is selected according to pre-set CoMP scheme type, abandon with it is described
The transmission state of CoMP scheme type mismatch.
At one in the specific implementation, transmission state determining module 402 is used for:
According to the transmission shape for selecting the CoMP user combination for the different pre-set measurement collection numbers of CoMP user
State abandons transmission state corresponding with the CoMP user that the measurement collection number is not inconsistent.
At one in the specific implementation, transmission state determining module 402 is used for:
The CoMP user group is selected according to for the pre-set transfer point for participating in cooperation transmission of different CoMP users
The transmission state of conjunction abandons the CoMP user by other transfer points in the CoMP collaboration set and participates in the corresponding biography of cooperation transmission
Defeated state.
In addition, the collaboration set in communication system further can be divided at least two virtual corporation collection by base station, then user group
Determining module 401 is closed using each virtual corporation collection as the CoMP collaboration set.Further more, CoMP user also can be preset in base station
The CSI number of feedback determines so that the CSI number is less than the CSI number upper limit value that base station can configure to control transmission state
Module 402 abandons a part of transmission state, achievees the effect that reduce complexity.
It may be noted that base station shown in Fig. 4 can be used for executing the scheduling flow that above method embodiment refers to, herein no longer
It repeats.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (12)
1. a kind of cooperative multi-point CoMP dispatching method characterized by comprising
A, one or more CoMP user combinations in CoMP collaboration set are determined；
B, one or more transmission states are determined for the combination of each CoMP user, and calculates the dispatching priority of each transmission state
Grade；
C, one or more of transmission states that all CoMP users combine from the combination of one or more of CoMP users
Highest priority is selected in corresponding dispatching priority, user's tune is carried out according to the corresponding transmission state of the highest priority
Degree.
2. the method according to claim 1, wherein further comprising before the step A: by communication system
In collaboration set be divided at least two virtual corporation collection, using each virtual corporation collection as the CoMP collaboration set.
3. the method according to claim 1, wherein the step A includes:
According to the determining while schedulable maximum of the CoMP user number in the CoMP collaboration set size and/or the CoMP collaboration set
CoMP user number X_max, or preset while schedulable maximum CoMP user number X_max；
The CoMP user group is selected from the CoMP user in the CoMP collaboration set according to the CoMP user number x of scheduling simultaneously
It closes, wherein the value of the CoMP user number x of scheduling simultaneously is from 0 to described while schedulable maximum CoMP user number X_
The integer of max.
4. method according to claim 1-3, which is characterized in that the step B further comprises: according to preparatory
The CoMP scheme type of setting selects the transmission state of the CoMP user combination, abandons and the CoMP scheme type mismatch
Transmission state.
5. method according to claim 1-3, which is characterized in that the step B further comprises: according to for not
The pre-set measurement collection number of same CoMP user selects the transmission state of the CoMP user combination, discarding and the measurement
The corresponding transmission state of CoMP user that collection number is not inconsistent.
6. method according to claim 1-3, which is characterized in that the step B further comprises: according to for not
The pre-set transfer point for participating in cooperation transmission of same CoMP user selects the transmission state of the CoMP user combination, abandons
The CoMP user participates in the corresponding transmission state of cooperation transmission by other transfer points in the CoMP collaboration set.
7. method according to claim 1-3, which is characterized in that further comprise: presetting CoMP user
The CSI number of feedback, so that the CSI number is less than the CSI number upper limit value that base station can configure.
8. a kind of base station characterized by comprising
User combines determining module, for determining one or more CoMP user combinations in CoMP collaboration set；
Transmission state determining module for determining one or more transmission states for the combination of each CoMP user, and calculates each
The dispatching priority of transmission state；
Cooperation transmission execution module, for described in CoMP user combinations all from the combination of one or more of CoMP users
Highest priority is selected in the corresponding dispatching priority of one or more transmission states, according to the corresponding biography of the highest priority
Defeated state carries out user's scheduling.
9. base station according to claim 8, which is characterized in that the user combines determining module and is used for:
According to the determining while schedulable maximum of the CoMP user number in the CoMP collaboration set size and/or the CoMP collaboration set
CoMP user number X_max, or preset while schedulable maximum CoMP user number X_max；
The CoMP user group is selected from the CoMP user in the CoMP collaboration set according to the CoMP user number x of scheduling simultaneously
It closes, wherein the value of the CoMP user number x of scheduling simultaneously is from 0 to described while schedulable maximum CoMP user number X_
The integer of max.
10. base station according to claim 8, which is characterized in that the transmission state determining module is used for:
The transmission state that the CoMP user combination is selected according to pre-set CoMP scheme type, abandons and the side CoMP
The transmission state of case type mismatch.
11. according to the described in any item base stations claim 8-10, which is characterized in that the transmission state determining module is used for:
According to the transmission state for selecting the CoMP user combination for the different pre-set measurement collection numbers of CoMP user, lose
Abandon transmission state corresponding with the CoMP user that the measurement collection number is not inconsistent.
12. according to the described in any item base stations claim 8-10, which is characterized in that the transmission state determining module is used for:
The CoMP user combination is selected according to for the pre-set transfer point for participating in cooperation transmission of different CoMP users
Transmission state abandons the CoMP user by other transfer points in the CoMP collaboration set and participates in the corresponding transmission shape of cooperation transmission
State.
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| CN105636219B (en) * | 2014-10-29 | 2019-04-05 | 华为技术有限公司 | Resource regulating method and device |
| WO2016090631A1 (en) * | 2014-12-12 | 2016-06-16 | Huawei Technologies Co., Ltd. | Base station, mobile station and method thereof |
| CN104639224B (en) * | 2015-02-12 | 2018-02-02 | 大唐移动通信设备有限公司 | A kind of down collaboration multi-point technology CoMP transmission method and apparatus of more cooperation cells |
| CN104780032B (en) * | 2015-04-14 | 2018-01-26 | 大唐移动通信设备有限公司 | A kind of adaptive descending CoMP transmission method and apparatus |
| JP6441785B2 (en) * | 2015-12-03 | 2018-12-19 | 日本電信電話株式会社 | Scheduling apparatus and method |
| JP6457379B2 (en) * | 2015-12-04 | 2019-01-23 | 日本電信電話株式会社 | Scheduling apparatus and method |
| JP6096952B1 (en) * | 2016-02-17 | 2017-03-15 | 日本電信電話株式会社 | Scheduling apparatus and method |
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| CN101668295A (en) * | 2009-05-31 | 2010-03-10 | 北京邮电大学 | Resource reuse method and system for supporting cooperative transmission in communication system |
| CN102056177A (en) * | 2010-12-16 | 2011-05-11 | 西安交通大学 | Coordinated node point selection and wireless resource dispatching method in coordinated multi-point transmission technology |
| CN102098737A (en) * | 2009-12-11 | 2011-06-15 | 中兴通讯股份有限公司 | Cell priority level based cooperation scheduling method and system |
| WO2012094608A2 (en) * | 2011-01-07 | 2012-07-12 | Interdigital Patent Holdings, Inc. | Communicating channel state information (csi) of multiple transmission points |
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| US8498647B2 (en) * | 2008-08-28 | 2013-07-30 | Qualcomm Incorporated | Distributed downlink coordinated multi-point (CoMP) framework |
| CN102655677B (en) * | 2011-03-02 | 2015-04-01 | 株式会社日立制作所 | Mobile communication system and far-end radio frequency unit clustering method thereof |
| JP5680483B2 (en) * | 2011-05-26 | 2015-03-04 | 京セラ株式会社 | base station |
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| CN101668295A (en) * | 2009-05-31 | 2010-03-10 | 北京邮电大学 | Resource reuse method and system for supporting cooperative transmission in communication system |
| CN102098737A (en) * | 2009-12-11 | 2011-06-15 | 中兴通讯股份有限公司 | Cell priority level based cooperation scheduling method and system |
| CN102056177A (en) * | 2010-12-16 | 2011-05-11 | 西安交通大学 | Coordinated node point selection and wireless resource dispatching method in coordinated multi-point transmission technology |
| WO2012094608A2 (en) * | 2011-01-07 | 2012-07-12 | Interdigital Patent Holdings, Inc. | Communicating channel state information (csi) of multiple transmission points |
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