CN101895994B - Method, device and base station for updating multi-point cooperative set - Google Patents
Method, device and base station for updating multi-point cooperative set Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, a device and a base station for updating a multi-point cooperative set. The method comprises the following steps of: determining scheduled CoMP users in a first CoMP set according to scheduling results of users; determining a second user who has time resources and/or frequency resources overlapped with those occupied by a first CoMP user on a cooperative sector corresponding to the first CoMP user among the scheduled CoMP users; and adding the scheduled CoMP users, service sectors and cooperative sectors corresponding to the scheduled CoMP users, the second user, a service sector of the second user and a cooperative sector of the second user to a second CoMP set. The scheme of the embodiment of the invention can be applicable to multi-point cooperative transmission in the base station or among base stations.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of multipoint cooperative set update method and device, base station.
Background technology
To be a plurality of sectors or a plurality of base station that utilize the base station carry out a technology of Combined Treatment to transmission/reception signal to CoMP (Coordinated Multi-Point, multipoint cooperative), can reach and improve edge customer speed, promotes the purpose of cell throughout.
Because the sensing of the antenna for base station radiation direction of different sectors is different; Possibly there is bigger difference in the signal power that the different sectors of base station receive same user; If the user is at the boundary vicinity of two sectors; Two sectors can both receive this user's signal so, and the reception signal that therefore can unite two sectors detects, and gains with obtained performance.Meanwhile, sector-edge user possibly produce larger interference to the adjacent area user who takies identical time resource and/or frequency resource, thereby greatly reduces adjacent area user's detection performance.
CoMP is that reception signal to a plurality of sectors in the same base station carries out Combined Treatment in the up base station.CoMP user is meant that the base station adopts the user of many sectors Combined Treatment to this user's signal; CoMP user's serving sector is meant the sector that the user belongs to; CoMP user's cooperation sector is to point to the non-serving sector that the user provides cooperation; The CoMP collection is meant the set that all users that need joint-detection and corresponding joint-detection sector are formed.
At present, the common CoMP collection system of selection of adopting based on pilot reception power or propagated loss.
When in the base station, carrying out joint-detection; Received power/path loss that adjacent sectors receives certain user satisfies when setting thresholding with respect to the difference of the received power/path loss of this user's serving sector; This user is chosen as CoMP user, and corresponding sector is chosen as this CoMP user's cooperation sector.When between the base station, carrying out joint-detection; Up many sectors are united reception and can be adopted to unite with descending many sectors and send identical CoMP collection; The user utilizes the down-bound pilot frequency signal of a plurality of sub-districts of downlink broadcast channel measurement; The difference of the signal received power/propagated loss of other sub-district and service cell signal received power/propagated loss satisfies when setting thresholding; This user is chosen as CoMP user, and other corresponding sub-district is chosen as cooperation cell, and the user reports the cooperation cell of selecting to the base station.The selected CoMP collection of CoMP collection system of selection is a gradual semi-static set at present, is unfavorable in follow-up testing process, disturbing inhibition.
Summary of the invention
Embodiments of the invention provide a kind of multipoint cooperative set update method and device, base station, can effectively utilize to receive the user profile that CoMP user disturbs and upgrade the CoMP collection, disturb so that in follow-up testing process, suppress.
On the one hand, a kind of multipoint cooperative set update method is provided, has comprised:
According to scheduling result, confirm the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection to the user;
Confirm on the corresponding cooperation sector of a CoMP user among the said CoMP user who is dispatched to, the second overlapping user arranged with a said CoMP CU time resource and/or frequency resource;
Add the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding to the 2nd CoMP collection with the said CoMP user who is dispatched to; Wherein, A said CoMP user is for existing the CoMP user that overlapping user is arranged with its holding time resource and/or frequency resource on the cooperation sector among the said CoMP user who is dispatched to; Said second user does not belong to the said CoMP user who is dispatched to, and said second user's cooperation sector comprises a said CoMP user's serving sector.
On the one hand, a kind of multi-point cooperative set updating device is provided, has comprised:
First determination module is used for confirming the CoMP user who is dispatched in the CoMP collection according to the scheduling result to the user;
Second determination module is used for confirming the corresponding cooperation sector of the said CoMP user's who is dispatched to a CoMP user, with a said CoMP CU time resource and/or frequency resource the second overlapping user is arranged;
First update module is used for adding the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding with the said CoMP user who is dispatched to the 2nd CoMP collection;
Wherein, A said CoMP user is for existing the CoMP user that overlapping user is arranged with its holding time resource and/or frequency resource on the cooperation sector among the said CoMP user who is dispatched to; Said second user does not belong to the said CoMP user who is dispatched to, and said second user's cooperation sector comprises a said CoMP user's serving sector
On the one hand, a kind of base station is provided, has comprised above-described multi-point cooperative set updating device.
Embodiment of the invention multipoint cooperative set update method and device, base station; According to scheduling result to the user; Confirm the CoMP user that is dispatched in the CoMP collection; On the corresponding cooperation sector of a CoMP user among the CoMP user who confirms to be dispatched to, the second overlapping user is arranged, add the said CoMP user who is dispatched to, the serving sector corresponding and cooperate sector, said second user, said second user's serving sector and said second user's cooperation sector to the 2nd CoMP collection with the said CoMP user who is dispatched to a CoMP CU time resource and/or frequency resource.The CoMP set update method of the embodiment of the invention and device, base station; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can effectively utilize the user profile that receives CoMP user's interference to upgrade the CoMP collection, disturb so that in follow-up testing process, suppress.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The method flow diagram that Fig. 1 provides for one embodiment of the invention;
The method flow diagram that Fig. 2 provides for another embodiment of the present invention;
The method flow diagram that Fig. 3 provides for yet another embodiment of the invention;
The apparatus structure sketch map that Fig. 4 provides for one embodiment of the invention;
The apparatus structure sketch map that Fig. 5 provides for another embodiment of the present invention;
The apparatus structure sketch map that Fig. 6 provides for yet another embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making all other embodiment that obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
For the advantage that makes technical scheme of the present invention is clearer, the present invention is elaborated below in conjunction with accompanying drawing and embodiment.
One embodiment of the invention provides a kind of multipoint cooperative set update method, and is as shown in Figure 1, and this method can comprise:
101,, confirm the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection according to scheduling result to the user.
In the present embodiment, can the existing C oMP collection before upgrading be called a CoMP collection, the CoMP collection after upgrading is called the 2nd CoMP collection.CoMP collection here can be the CoMP collection selection criterion that adopts based on the signal received power, and a CoMP collection of perhaps confirming based on the CoMP collection selection criterion of propagated loss also can be an existing C oMP collection before upgrading.Specifically can be with reference to the description of back embodiment.
The scheduling here is meant that relevant information according to each user (for example modulating-coding form etc.) confirms that next is constantly by which time resource of which CU and/or frequency resource (can confirmed also can be confirmed by scheduler by the base station); In this step; According to can knowing to user's scheduling result which user existing C oMP concentrates be scheduled for, thereby can upgrade the CoMP collection according to the user who is dispatched to.
102, confirm on the corresponding cooperation sector of a CoMP user among the said CoMP user who is dispatched to, the second overlapping user arranged with a said CoMP CU time resource and/or frequency resource.
Wherein, here overlapping include but are not limited to overlap, fully overlapping or identical.And holding time resource and/or frequency resource have and overlappingly can be following any situation: the time resource that takies has overlapping; Perhaps, the frequency resource that takies has overlapping; Perhaps, time resource that takies and frequency resource all have overlapping.
Through confirming the second overlapping user to be arranged with a said CoMP CU time resource that is dispatched to and/or frequency resource, thus other users that the CoMP user that can confirm to be scheduled for disturbs.
103, add the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding to the 2nd CoMP collection with the said CoMP user who is dispatched to.
Here; The one CoMP user can be among the CoMP user who is dispatched in 101 one or more arbitrarily; In the present embodiment; If exist on the cooperation sector among the CoMP user who is dispatched to who in 101, confirms overlapping user is arranged, can this type user be called a CoMP user with its holding time resource and/or frequency resource.For example; Suppose that a said CoMP user is CoMP user A; And second user is user B, and user B does not belong to the concentrated user of CoMP who confirms in 101, if time resource that user B takies and/or frequency resource and user A's is overlapping; Can the serving sector of user B and user B be added to a CoMP collection so, and add the serving sector of user A to the 2nd CoMP collection as the cooperation sector of said user B.
Wherein, the cooperation sector that said CoMP user is corresponding is to point to the non-serving sector that CoMP user provides cooperation.Said CoMP user can adopt the CoMP collection selection criterion based on the signal received power in corresponding cooperation sector, perhaps confirms based on the CoMP collection selection criterion of propagated loss.Specifically can be with reference to the description of back embodiment.
And when considering second user's cooperation sector, can be with a CoMP user serving sector cooperation sector as second user, second user's cooperation sector comprises a CoMP user serving sector so.
So far, can think the renewal of having accomplished a CoMP collection.
Need to prove, in the present embodiment, can be periodically the CoMP collection to be upgraded, and also can be through the renewal of Event triggered to the CoMP collection.When periodically the CoMP collection being upgraded, this cycle can be provided with according to actual needs, is the cycle with a time slot for example, thereby can realizes the renewal to the CoMP collection relatively in real time.When through Event triggered during to the renewal of CoMP collection, can compare the scheduling result in current scheduling scheduling result constantly and a last scheduling moment, if variation has taken place dispatched users, then trigger renewal to the CoMP collection.More than taken place to change as triggering the incident that the CoMP collection upgrades with dispatched users to be example describes, can also to be other incident that present embodiment is not given an example one by one.
Can after knowing the incident generation that triggers the renewal of CoMP collection or when knowing that the CoMP collection update cycle arrives, carry out above-mentioned CoMP collection renewal process so.
Embodiment of the invention multipoint cooperative set update method; According to scheduling result to the user; Confirm the CoMP user that is dispatched in the CoMP collection; On the corresponding cooperation sector of a CoMP user among the CoMP user who confirms to be dispatched to, the second overlapping user is arranged, add the said CoMP user who is dispatched to, the serving sector corresponding and cooperate sector, said second user, said second user's serving sector and said second user's cooperation sector to the 2nd CoMP collection with the said CoMP user who is dispatched to a CoMP CU time resource and/or frequency resource.The CoMP set update method of present embodiment; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can effectively utilize the user profile that receives CoMP user's interference to upgrade the CoMP collection, disturb so that in follow-up testing process, suppress.
Further, the CoMP set update method of the foregoing description can also comprise: detect according to the 2nd CoMP collection.The mode that detects can have multiple, for example can repeat no more with reference to prior art here.And after detecting, can further user's modulation coding mode be adjusted, thereby can increase the transmission rate that the concentrated relative CoMP collection of the 2nd CoMP has the user of renewal, specifically can be following:
Obtain the SINR (Signal to Interferenceplus Noise Ratio, Signal to Interference plus Noise Ratio) that detects generation according to said the 2nd CoMP collection;
According to said SINR second user's that adds the 2nd CoMP to and concentrate modulating-coding form and/or time resource and/or frequency resource are adjusted.
Particularly, can be provided with the mapping table between SINR and the modulating-coding form in the base station, the modulating-coding form that the SINR of different interval values is corresponding different, corresponding modulating-coding form can be searched according to this SINR in the base station in said mapping table.
Need to prove,, also can concentrate shared time resource and/or the frequency resource of second user to adjust to the 2nd CoMP according to this SINR except concentrating second user's modulating-coding form to adjust to the 2nd CoMP according to this SINR.
Need to prove; The foregoing description is to detect with said the 2nd CoMP collection that can to bring SINR gain be that example describes; In fact; Can consider can produce other whens gain when said the 2nd CoMP collection detects yet, MCS or time resource and/or frequency resource etc. are adjusted, present embodiment is not given an example one by one.
Another embodiment of the present invention provides a kind of multipoint cooperative set update method; In the present embodiment; The multi-point cooperative set renewal is carried out in consideration between a plurality of sectors of same base station, a plurality of sectors here also can comprise a plurality of sectors of the base band Combined Treatment that realizes through optical fiber radio frequency unit remote technology.
As shown in Figure 2, this method can comprise:
201, obtain scheduling result to the user.
Through this step; Can know that which user is the user who is scheduled for; Be assigned to the user that the user of time resource and/or frequency resource just is scheduled for, and the scheduling result here includes but not limited to the user that is dispatched to, user's modulating-coding form (MCS; Modulation Coding Scheme), the time resource of CU and/or frequency resource etc.
202, according to scheduling result, confirm the CoMP user who is dispatched in the CoMP collection to the user.
CoMP collection here can be the CoMP collection selection criterion that adopts based on the signal received power, perhaps confirms based on the CoMP collection selection criterion of propagated loss.
(1) confirm a CoMP collection based on the CoMP collection selection criterion of signal received power:
Adjacent sectors receives the received power of certain user A with respect to the satisfied thresholding of setting of the difference of the received power of this user's serving sector; Then this user A just is chosen as CoMP user; Corresponding adjacent sectors is chosen as this CoMP user's cooperation sector, for example can be shown below:
Wherein, The sector adjacent with the serving sector of user A is called adjacent sectors;
is respectively the signal received power that adjacent sectors, serving sector receive same user, and
is negative value less than
.
(2) confirm a CoMP collection based on the CoMP collection selection criterion of propagated loss:
Adjacent sectors receives the propagated loss of certain user B with respect to the satisfied thresholding of setting of the difference of the propagated loss of this user's serving sector; Then this user B just is chosen as CoMP user; Corresponding adjacent sectors is chosen as this CoMP user's cooperation sector, for example can be shown below:
Wherein, The sector adjacent with the serving sector of user B is called adjacent sectors;
is respectively the propagated loss that adjacent sectors, serving sector receive same user,
greater than
be on the occasion of.
Certainly, confirm that the mode of a CoMP collection is not limited to above-mentioned two kinds, can be alternate manner yet, present embodiment is not given an example one by one.
In the CoMP set update method in embodiments of the present invention; Definite mode of an above-mentioned CoMP collection can be to be used for confirming initial CoMP collection; And in follow-up CoMP collection upgraded, the CoMP collection that upgrades based on the last time got final product, and that is to say when not being to upgrade the CoMP collection at every turn; All use definite mode of an above-mentioned CoMP collection to confirm an existing C oMP collection, but the CoMP collection that directly last time is upgraded is as a CoMP collection; When upgrading the CoMP collection in other words, confirm an existing C oMP collection with definite mode of an above-mentioned CoMP collection at every turn.
203, confirm on the corresponding cooperation sector of a CoMP user among the said CoMP user who is dispatched to, the second overlapping user arranged with a said CoMP CU time resource and/or frequency resource.
Wherein, Holding time resource and/or frequency resource have and overlappingly include but are not limited to the holding time resource and/or frequency resource is overlapped, fully overlapping or holding time resource and/or frequency resource are identical; For example; CoMP user A has overlapping can comprising with the second user B holding time resource and/or frequency resource: a part of identical in the part in CoMP user A holding time resource and/or the frequency resource and the second user B holding time resource and/or the frequency resource; Perhaps; Part in CoMP user A holding time resource and/or the frequency resource is identical with the second user B holding time resource and/or frequency resource, perhaps, and a part of identical in CoMP user A holding time resource and/or frequency resource and the second user B holding time resource and/or the frequency resource; Perhaps, CoMP user A holding time resource and/or frequency resource are identical with the second user B holding time resource and/or frequency resource.
204, add the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding to the 2nd CoMP collection with the said CoMP user who is dispatched to.
Wherein, second user does not here belong to the CoMP user who is dispatched to described in 202.
When considering second user's cooperation sector, can be with a CoMP user serving sector cooperation sector as second user, second user's cooperation sector comprises a CoMP user serving sector so.
In addition, can also upgrade the 2nd CoMP collection through the 205-206 mode:
205, holding time resource and/or frequency resource have the 3rd overlapping CoMP user and the 4th CoMP user among the CoMP user who confirms to be dispatched to.
206,, add the 3rd CoMP user's serving sector to the 2nd CoMP collection as the 4th CoMP user's cooperation sector if the 3rd CoMP user's serving sector is not the 4th CoMP user's cooperation sector.
For example; In the CoMP user who is dispatched to; Determining CoMP user C holding time resource and/or frequency resource and CoMP user D holding time resource and/or frequency resource has overlapping; If the serving sector of CoMP user C is not the cooperation sector of CoMP user D, add the serving sector of CoMP user C to the 2nd CoMP collection as the cooperation sector of CoMP user D.
Wherein, the order between said step 203-204 and the step 205-206 is not limited thereto, and also can carry out simultaneously, and perhaps, step 203-204 carries out after step 205-206.
Further; After adopting above-mentioned CoMP set update method that the CoMP collection is upgraded; Can detect according to the CoMP collection after upgrading; Thereby can effectively utilize the user profile of the CoMP user's interference that is dispatched to, the interference that the CoMP user who effectively suppresses to be dispatched to causes other users improves the performance that multi-point joint detects.
Further, after the renewal of accomplishing the 2nd CoMP collection, present embodiment can also comprise:
207, detect according to said the 2nd CoMP collection.
The mode that detects can have multiple, for example can repeat no more with reference to prior art here.And after detecting according to the mode of this step, can also further user's modulation coding mode be adjusted, thereby can increase the 2nd CoMP concentrates a relative CoMP collection that the user's of renewal transmission rate is arranged, and specifically can be following:
208, obtain the SINR that detects generation according to said the 2nd CoMP collection.
Owing to compare with a CoMP collection; The 2nd CoMP concentrates to some extent and upgrades; For example added new CoMP user or to a CoMP centralized dispatching to user's cooperation sector upgrade, when carrying out joint-detection, can produce SINR according to said the 2nd CoMP collection.The SINR that this SINR produces when carrying out joint-detection according to a CoMP collection compares, and can bring the SINR gain.
209, according to said SINR second user and the 4th CoMP user's modulating-coding form is adjusted.
Here, because the 4th CoMP user's cooperation sector is upgraded to some extent, therefore, the 4th CoMP user also belongs to the 2nd CoMP and concentrates a relative CoMP collection that the user of renewal is arranged.Particularly; Can be provided with the mapping table between SINR and the modulating-coding form in the base station; The modulating-coding form that the SINR of different interval values is corresponding different, corresponding modulating-coding form can be searched according to this SINR in the base station in said mapping table; When SINR increased, pairing second user of modulating-coding form who finds according to this SINR or the 4th CoMP user's transmission rate also can increase thereupon.
Need to prove; Except concentrating second user and the 4th CoMP user's modulating-coding form to adjust to the 2nd CoMP, also can concentrate second user and shared time resource and/or the frequency resource of the 4th CoMP user to adjust to the 2nd CoMP according to this SINR according to this SINR.
Need to prove; The foregoing description is to detect with said the 2nd CoMP collection that can to bring SINR gain be that example describes; In fact; Can consider can produce other whens gain when said the 2nd CoMP collection detects yet, MCS or time resource and/or frequency resource etc. are adjusted, present embodiment is not given an example one by one.
Because to MCS, perhaps time resource and/or frequency resource etc. are adjusted, and mean that just variation has taken place scheduling result.Follow-uply can the scheduling result after changing be sent to the user through down link, the user can carry out up transmission according to the scheduling result after changing.
Embodiment of the invention multipoint cooperative set update method; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can be in carrying out the base station effectively utilize during joint-detection to receive the user profile that CoMP user disturbs and upgrade the CoMP collection, effectively suppress the interference that CoMP user causes other users, improve the performance that multi-point joint detects.
Yet another embodiment of the invention provides a kind of multipoint cooperative set update method; In the present embodiment; The multi-point cooperative set renewal is carried out in consideration between a plurality of sectors of a plurality of base stations, a plurality of sectors here also can comprise a plurality of sectors of the base band Combined Treatment that realizes through optical fiber radio frequency unit remote technology.
As shown in Figure 3, this method can comprise:
301, obtain scheduling result to the user.
Through this step; Can know that which user is the user who is scheduled for; Be assigned to the user that the user of time resource and/or frequency resource just is scheduled for; And the scheduling result here includes but not limited to the user that is dispatched to, user's MCS, the time resource of CU and/or frequency resource etc.
302, according to scheduling result, confirm the CoMP user who is dispatched in the CoMP collection to the user.
Wherein, the CoMP user's who confirms to be dispatched in the CoMP collection mode can repeat no more at this referring to step 202.
303, confirm on the corresponding cooperation sector of a CoMP user among the said CoMP user who is dispatched to, the second overlapping user arranged with a said CoMP CU time resource and/or frequency resource.
Specifically can repeat no more at this referring to step 203.
304, add the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding to the 2nd CoMP collection with the said CoMP user who is dispatched to.
Wherein, second user does not here belong to the CoMP user who is dispatched to described in 302.
Specifically can repeat no more at this referring to step 204.
In addition, can also upgrade the 2nd CoMP collection through the 305-306 mode:
305, holding time resource and/or frequency resource have the 3rd overlapping CoMP user and the 4th CoMP user among the CoMP user who confirms to be dispatched to.
306,, add the 3rd CoMP user's serving sector to the 2nd CoMP collection as the 4th CoMP user's cooperation sector if the 3rd CoMP user's serving sector is not the 4th CoMP user's cooperation sector.
Specifically can repeat no more at this referring to step 206.
Wherein, the order between said step 303-304 and the step 305-306 is not limited thereto, and also can carry out simultaneously, and perhaps, step 303-304 carries out after step 305-306.
In addition, can also upgrade the 2nd CoMP collection through the 307-308 mode:
307, according to adjacent base station the user's of interference schedule information is caused in a plurality of sectors, this base station; Obtain in the adjacent base station the 5th user who a plurality of sectors, this base station is caused interference, confirm to have the 6th user of this overlapping base station with said the 5th CU time resource and/or frequency resource.
308, add said the 6th user, said the 6th user's serving sector and said the 6th user's cooperation sector to said the 2nd CoMP collection.
Wherein, the 6th user does not here belong to the CoMP user who is dispatched to described in 302.
When considering the 6th user's cooperation sector; Can be with the sector except that said the 6th user's serving sector in a plurality of sectors, said this base station as the 6th user's cooperation sector, the 6th user's cooperation sector comprises the sector except that said the 6th user's serving sector in a plurality of sectors, said this base station so.
Wherein, for this base station user, in a plurality of sectors, said this base station, one of them sector is this this base station user's a serving sector, and remaining sector is this this base station user's cooperation sector.
Wherein, Can confirm a plurality of sectors of adjacent base station are caused the user of interference through following mode: the user is through measuring down-bound pilot frequency signal; Select the cooperation sector; And the cooperation sector that will select sends to the base station, and whether the user-selected cooperation sector of base station judges has comprised a plurality of sectors of adjacent base station, when user-selected cooperation sector has comprised a plurality of sector of adjacent base station; Confirm that this user causes interference to a plurality of sectors of above-mentioned adjacent base station; These cause the user's of interference schedule information can send to relevant base station to a plurality of sectors of adjacent base station, just can know that so also adjacent base station causes the user's of interference schedule information to a plurality of sectors, this base station, thereby can carry out the renewal of CoMP collection.
Optional, the order of step 307-308 and step 303-304 and 305-306 is not limited thereto, and also can carry out simultaneously; Perhaps; Step 307-308 carries out after step 303-304 or 305-306, perhaps, also can in 305-306 or 307-308, select one of which to carry out.
Further; After adopting above-mentioned CoMP set update method that the CoMP collection is upgraded; Can detect according to the CoMP collection after upgrading; Thereby can effectively utilize the antenna of these a plurality of sectors, base station, the interference that the CoMP user that effective inhibition is positioned at the serving BS edge causes this base station improves the performance that this base station is detected.
Further, after the renewal of accomplishing the 2nd CoMP collection, present embodiment can also comprise:
309, detect according to said the 2nd CoMP collection.
The mode that detects can have multiple, for example can repeat no more with reference to prior art here.And after detecting according to the mode of this step, can also further user's modulation coding mode be adjusted, thereby can be so that increase the CoMP user's who adds the 2nd CoMP collection to transmission rate, specifically can be following:
310, obtain the SINR that detects generation according to said the 2nd CoMP collection.
Specifically can repeat no more at this referring to step 208.
311, according to said SINR second user, the 4th CoMP user and the 6th user's modulating-coding form is adjusted.
Specifically can repeat no more at this referring to step 209.
Embodiment of the invention multipoint cooperative set update method; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can when carrying out joint-detection between the base station, effectively utilize to receive the user profile that CoMP user disturbs and upgrade the CoMP collection, effectively suppress the interference that CoMP user causes other users, improve the performance that multi-point joint detects.
One embodiment of the invention provides a kind of multi-point cooperative set updating device, and is as shown in Figure 4, and this device can comprise:
Wherein, the cooperation sector that said CoMP user is corresponding is to point to the non-serving sector that CoMP user provides cooperation.
The scheduling here is meant that relevant information according to each user (for example modulating-coding form etc.) confirms that next is constantly by which time resource of which CU and/or frequency resource (can confirmed also can be confirmed by scheduler by the base station); In the present embodiment; Can the existing C oMP collection before upgrading be called a CoMP collection, the CoMP collection after upgrading is called the 2nd CoMP collection.
Wherein, A said CoMP user is for existing the CoMP user that overlapping user is arranged with its holding time resource and/or frequency resource on the cooperation sector among the said CoMP user who is dispatched to; Said second user does not belong to the said CoMP user who is dispatched to, and said second user's cooperation sector comprises a said CoMP user's serving sector.
For example, the CoMP user A that concentrates for a CoMP is if the user who takies identical time resource and/or frequency resource with CoMP user A is the second user B; Perhaps; The user who takies identical time resource and/or frequency resource with CoMP user A is CoMP user C; And the cooperation sector of CoMP user C does not comprise the serving sector of CoMP user A; Then add the second user B or CoMP user C to said the 2nd CoMP and concentrate, add the serving sector of this second user B or CoMP user C to the 2nd CoMP collection, the serving sector that CoMP user A is corresponding is as the cooperation sector of the second user B or CoMP user C.
Embodiment of the invention multi-point cooperative set updating device; On the corresponding cooperation sector of a CoMP user among the CoMP user who confirms to be dispatched to, the second overlapping user is arranged, add the said CoMP user who is dispatched to, the serving sector corresponding and cooperate sector, said second user, said second user's serving sector and said second user's cooperation sector to the 2nd CoMP collection with the said CoMP user who is dispatched to a CoMP CU time resource and/or frequency resource.The CoMP collection updating device of present embodiment; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can effectively utilize the user profile that receives CoMP user's interference to upgrade the CoMP collection, disturb so that in follow-up testing process, suppress.
Another embodiment of the present invention provides a kind of multi-point cooperative set updating device, and is as shown in Figure 5, and this device comprises aforesaid first determination module 401, second determination module 402 and first update module 403.
Further, as shown in Figure 5, this device can also comprise:
The 3rd determination module 404 is used for confirming that said CoMP user's holding time resource that is dispatched to and/or frequency resource have the 3rd overlapping CoMP user and the 4th CoMP user;
Further, as shown in Figure 5, this device can also comprise:
Need to prove; Consideration is when carrying out the multi-point cooperative set renewal and considering to carry out the multi-point cooperative set renewal between a plurality of sectors in a plurality of base stations between a plurality of sectors of same base station; First detection module 406 in the present embodiment can be to detect according to the 2nd CoMP collection that first update module 403 obtains, and perhaps first detection module 406 can be to detect according to the 2nd CoMP collection that obtains after first update module 403 and second update module, 405 common the processing.
Further, as shown in Figure 5, this device can also comprise:
Owing to compare with a CoMP collection; The 2nd CoMP concentrates to some extent and upgrades; For example be added new CoMP user or to a CoMP centralized dispatching to user's cooperation sector upgrade, when carrying out joint-detection, can produce SINR according to said the 2nd CoMP collection.The SINR that this SINR produces when carrying out joint-detection according to a CoMP collection compares, and can bring the SINR gain.
First adjusting module 408; Be used for said second user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to said SINR; Perhaps, according to said SINR said second user and said the 4th CoMP user's modulating-coding form and/or time resource and/or frequency resource are adjusted.
Further, as shown in Figure 5, this device can also comprise:
Embodiment of the invention multi-point cooperative set updating device; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can be in carrying out the base station effectively utilize during joint-detection to receive the user profile that CoMP user disturbs and upgrade the CoMP collection, effectively suppress the interference that CoMP user causes other users, improve the performance that multi-point joint detects.
Yet another embodiment of the invention provides a kind of multi-point cooperative set updating device; As shown in Figure 6, this device can comprise aforesaid first determination module 401, second determination module 402, first update module 403, the 3rd determination module 404, second update module 405 and know module 409.
Further, as shown in Figure 6, when the collection of between the base station, cooperating upgraded, this device can also comprise:
The 4th determination module 410; Be used for the user's of interference schedule information being caused in a plurality of sectors, this base station according to adjacent base station; Obtain in the adjacent base station the 5th user who a plurality of sectors, this base station is caused interference, confirm to have the 6th user of this overlapping base station with said the 5th CU time resource and/or frequency resource;
The 3rd update module 411; Be used for adding said the 6th user, said the 6th user's serving sector and said the 6th user's cooperation sector to said the 2nd CoMP collection; Wherein, Said the 6th user does not belong to the said CoMP user who is dispatched to, and said the 6th user's cooperation sector comprises the sector except that said the 6th user's serving sector in a plurality of sectors, this base station.
Further, as shown in Figure 6, this device can also comprise:
Need to prove; Consideration is when carrying out the multi-point cooperative set renewal and considering to carry out the multi-point cooperative set renewal between a plurality of sectors in a plurality of base stations between a plurality of sectors of same base station; Second detection module 412 in the present embodiment can be to detect according to the 2nd CoMP collection that first update module 403 and the 3rd update module 411 obtain, and perhaps second detection module 412 can be to detect according to the 2nd CoMP collection that obtains after first update module 403, second update module 405 and second update module, 411 common the processing.
Further, as shown in Figure 6, this device can also comprise:
The implementation of each module of the multi-point cooperative set updating device of Fig. 4 of the present invention-6 and the reciprocal process associated description in can reference method embodiment.
Embodiment of the invention multi-point cooperative set updating device; Can upgrade the CoMP collection according to CoMP user's schedule information and the time resource that takies and/or frequency resource information; Add the user and the relevant sectors that receive CoMP user's interference to the CoMP collection; Thereby can when carrying out joint-detection between the base station, effectively utilize to receive the user profile that CoMP user disturbs and upgrade the CoMP collection, effectively suppress the interference that CoMP user causes other users, improve the performance that multi-point joint detects.
Respectively install among the embodiment above, the concrete way of realization of said multi-point cooperative set updating device can be the base station, also can be the part of base station.
One embodiment of the invention provides a kind of base station, and said base station comprises the described multi-point cooperative set updating device of the arbitrary embodiment of Fig. 4-6.
The above-mentioned method embodiment that provides can be realized in the multi-point cooperative set updating device that the embodiment of the invention provides, base station.Multipoint cooperative set update method that the embodiment of the invention provides and device, base station go for the perhaps transmission of the multipoint cooperative between the base station in the base station, but are not limited only to this.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (17)
1. a multipoint cooperative set update method is characterized in that, comprising:
According to scheduling result, confirm the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection to the user;
Confirm on the corresponding cooperation sector of a CoMP user among the said CoMP user who is dispatched to, the second overlapping user arranged with a said CoMP CU time resource and/or frequency resource;
Add the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding to the 2nd CoMP collection with the said CoMP user who is dispatched to; Wherein, A said CoMP user is for existing the CoMP user that overlapping user is arranged with its holding time resource and/or frequency resource on the cooperation sector among the said CoMP user who is dispatched to; Said second user does not belong to the said CoMP user who is dispatched to, and said second user's cooperation sector comprises a said CoMP user's serving sector.
2. method according to claim 1 is characterized in that, said method also comprises:
Confirm among the said CoMP user who is dispatched to that holding time resource and/or frequency resource have the 3rd overlapping CoMP user and the 4th CoMP user;
If said the 3rd CoMP user's serving sector is not said the 4th CoMP user's cooperation sector, add said the 3rd CoMP user's serving sector to said the 2nd CoMP collection as said the 4th CoMP user's cooperation sector.
3. method according to claim 2 is characterized in that, when the collection of between the base station, cooperating upgraded, said method also comprised:
According to adjacent base station the user's of interference schedule information is caused in a plurality of sectors, this base station, obtain in the adjacent base station the 5th user who a plurality of sectors, this base station is caused interference;
Confirm to have the 6th user of this overlapping base station with said the 5th CU time resource and/or frequency resource;
Add said the 6th user, said the 6th user's serving sector and said the 6th user's cooperation sector to said the 2nd CoMP collection; Wherein, Said the 6th user does not belong to the said CoMP user who is dispatched to, and said the 6th user's cooperation sector comprises the sector except that said the 6th user's serving sector in a plurality of sectors, said this base station.
4. method according to claim 2 is characterized in that, said method also comprises:
Detect according to said the 2nd CoMP collection.
5. method according to claim 4 is characterized in that, said detect according to said the 2nd CoMP collection after, said method also comprises:
Obtain the SINR (Signal to Interference plus Noise Ratio) that detects generation according to said the 2nd CoMP collection;
According to said SINR said second user's modulating-coding form and/or time resource and/or frequency resource are adjusted; Perhaps, according to said SINR said second user and said the 4th CoMP user's modulating-coding form and/or time resource and/or frequency resource are adjusted.
6. method according to claim 3 is characterized in that, said method also comprises:
Detect according to said the 2nd CoMP collection.
7. method according to claim 6 is characterized in that, said detect according to said the 2nd CoMP collection after, said method also comprises:
Obtain the SINR that detects generation according to said the 2nd CoMP collection;
According to said SINR said second user and said the 6th user's modulating-coding form and/or time resource and/or frequency resource are adjusted; Perhaps, according to said SINR said second user, the 4th CoMP user and said the 6th user's modulating-coding form and/or time resource and/or frequency resource are adjusted.
8. method according to claim 1 is characterized in that, in the scheduling result of said basis to the user, before the CoMP user who confirms to be dispatched in the CoMP collection, also comprises:
Know that the incident that triggers the multi-point cooperative set renewal takes place or know that the multi-point cooperative set update cycle arrives.
9. a multi-point cooperative set updating device is characterized in that, comprising:
First determination module is used for confirming the CoMP user who is dispatched in the CoMP collection according to the scheduling result to the user;
Second determination module is used for confirming the corresponding cooperation sector of the said CoMP user's who is dispatched to a CoMP user, with a said CoMP CU time resource and/or frequency resource the second overlapping user is arranged;
First update module is used for adding the said CoMP user who is dispatched to, serving sector and cooperation sector, said second user, said second user's serving sector and said second user's the cooperation sector corresponding with the said CoMP user who is dispatched to the 2nd CoMP collection;
Wherein, A said CoMP user is for existing the CoMP user that overlapping user is arranged with its holding time resource and/or frequency resource on the cooperation sector among the said CoMP user who is dispatched to; Said second user does not belong to the said CoMP user who is dispatched to, and said second user's cooperation sector comprises a said CoMP user's serving sector.
10. device according to claim 9 is characterized in that, also comprises:
The 3rd determination module is used for confirming that said CoMP user's holding time resource that is dispatched to and/or frequency resource have the 3rd overlapping CoMP user and the 4th CoMP user;
Second update module is used for when said the 3rd CoMP user's serving sector is not said the 4th CoMP user's cooperation sector, adds said the 3rd CoMP user's serving sector to said the 2nd CoMP collection as said the 4th CoMP user's cooperation sector.
11. device according to claim 10 is characterized in that, when the collection of between the base station, cooperating upgraded, said device also comprised:
The 4th determination module; Be used for the user's of interference schedule information being caused in a plurality of sectors, this base station according to adjacent base station; Obtain in the adjacent base station the 5th user who a plurality of sectors, this base station is caused interference, confirm to have the 6th user of this overlapping base station with said the 5th CU time resource and/or frequency resource;
The 3rd update module; Be used for adding said the 6th user, said the 6th user's serving sector and said the 6th user's cooperation sector to said the 2nd CoMP collection; Wherein, Said the 6th user does not belong to the said CoMP user who is dispatched to, and said the 6th user's cooperation sector comprises the sector except that said the 6th user's serving sector in a plurality of sectors, said this base station.
12. device according to claim 10 is characterized in that, also comprises:
First detection module is used for detecting according to said the 2nd CoMP collection.
13. device according to claim 12 is characterized in that, also comprises:
First acquisition module is used to obtain the SINR (Signal to Interference plus Noise Ratio) that detects generation according to said the 2nd CoMP collection;
First adjusting module; Be used for said second user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to said SINR; Perhaps, according to said SINR said second user and said the 4th CoMP user's modulating-coding form and/or time resource and/or frequency resource are adjusted.
14. device according to claim 11 is characterized in that, also comprises:
Second detection module is used for detecting according to said the 2nd CoMP collection.
15. device according to claim 14 is characterized in that, also comprises:
Second acquisition module is used to obtain the SINR that detects generation according to said the 2nd CoMP collection;
Second adjusting module; Be used for said second user and said the 6th user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to said SINR; Perhaps, according to said SINR said second user, the 4th CoMP user and said the 6th user's modulating-coding form and/or time resource and/or frequency resource are adjusted.
16. device according to claim 9 is characterized in that, also comprises:
Know module, be used to know whether the incident that triggers the multi-point cooperative set renewal takes place or know whether the multi-point cooperative set update cycle arrives;
When the said incident of knowing that module knows that the triggering multi-point cooperative set upgrades takes place or knows that the multi-point cooperative set update cycle arrives, trigger the scheduling result of said first determination module basis to the user, confirm the CoMP user who is dispatched in the CoMP collection.
17. a base station is characterized in that, comprises the described multi-point cooperative set updating device like one of claim 9-16.
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| CN102487534A (en) * | 2010-12-03 | 2012-06-06 | 中国移动通信集团公司 | Interference control method and device |
| CN102056177B (en) * | 2010-12-16 | 2013-08-28 | 西安交通大学 | Coordinated node point selection and wireless resource dispatching method in coordinated multi-point transmission technology |
| US8873462B2 (en) * | 2011-05-18 | 2014-10-28 | Nokia Siemens Networks Oy | Reduced complexity receiver for UL CoMP |
| CN103228000B (en) * | 2012-01-31 | 2016-09-07 | 上海贝尔股份有限公司 | For safeguarding the method and apparatus of multipoint cooperative |
| CN104918256B (en) * | 2014-03-14 | 2018-09-11 | 电信科学技术研究院 | A kind of transmission dispatching method and device |
| CN105393592B (en) * | 2014-05-05 | 2019-08-16 | 华为技术有限公司 | Base station system, equipment and multi-point cooperative processing method |
| KR20160089486A (en) | 2014-10-27 | 2016-07-27 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Method and device for adaptive modulation and coding |
| US10039125B2 (en) * | 2016-07-18 | 2018-07-31 | Ambit Microsystems (Shanghai) Ltd. | Data communication method and network device using the method |
| CN111385040B (en) * | 2018-12-27 | 2021-10-29 | 大唐移动通信设备有限公司 | Method and device for determining MCS value |
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