CN101895994A - 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
CoMP (Coordinated Multi-Point, multipoint cooperative) utilizes a plurality of sectors of base station or a plurality of base station that transmission/received signal is carried out a technology of Combined Treatment, can reach and improve edge customer speed, promotes the purpose of cell throughout.
Because the sensing difference of the antenna for base station radiation direction of different sectors, may there be 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, therefore the received signal that can unite two sectors detects, and gains with obtained performance.Meanwhile, sector-edge user may 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 carries out Combined Treatment to the received signal of a plurality of sectors in the same base station 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 at user place; 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, 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 for disturbing inhibition in follow-up testing process.
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 be subjected to the user profile that CoMP user disturbs and to upgrade the CoMP collection, disturb so that suppress in follow-up testing process.
On the one hand, provide a kind of multipoint cooperative set update method, having comprised:
According to scheduling result, determine the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection to the user;
Determine on the cooperation sector of the CoMP user's correspondence among the described CoMP user who is dispatched to, the second overlapping user arranged with a described CoMP CU time resource and/or frequency resource;
With the described CoMP user who is dispatched to, serving sector corresponding and cooperation sector with the described CoMP user who is dispatched to, described second user, described second user's serving sector and described second user's cooperation sector is added the 2nd CoMP collection to, wherein, a described 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 described CoMP user who is dispatched to, described second user does not belong to the described CoMP user who is dispatched to, and described second user's cooperation sector comprises a described CoMP user's serving sector.
On the one hand, provide a kind of multi-point cooperative set updating device, having comprised:
First determination module is used for determining the CoMP user who is dispatched in the CoMP collection according to the scheduling result to the user;
Second determination module, be used for determining CoMP user's correspondence of the described CoMP user who is dispatched to the cooperation sector, with a described CoMP CU time resource and/or frequency resource the second overlapping user is arranged;
First update module is used for adding the described CoMP user who is dispatched to, serving sector and cooperation sector, described second user, described second user's serving sector and described second user's the cooperation sector corresponding with the described CoMP user who is dispatched to the 2nd CoMP collection;
Wherein, a described 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 described CoMP user who is dispatched to, described second user does not belong to the described CoMP user who is dispatched to, and described second user's cooperation sector comprises a described CoMP user's serving sector
On the one hand, provide a kind of base station, comprised above-described multi-point cooperative set updating device.
Embodiment of the invention multipoint cooperative set update method and device, the base station, according to scheduling result to the user, determine the CoMP user that is dispatched in the CoMP collection, on the cooperation sector of the CoMP user's correspondence among the CoMP user who determines to be dispatched to, with a CoMP CU time resource and/or frequency resource the second overlapping user is arranged, with the described CoMP user who is dispatched to, serving sector corresponding and cooperation sector with the described CoMP user who is dispatched to, described second user, described second user's serving sector and described second user's cooperation sector is added the 2nd CoMP collection to.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 are subjected to CoMP user's interference to the CoMP collection, thereby can effectively utilize the user profile that is subjected to 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, apparently, 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 schematic diagram that Fig. 4 provides for one embodiment of the invention;
The apparatus structure schematic diagram that Fig. 5 provides for another embodiment of the present invention;
The apparatus structure schematic diagram that Fig. 6 provides for yet another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, 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 belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
For the advantage that makes technical solution of the present invention is clearer, the present invention is elaborated below in conjunction with drawings and Examples.
One embodiment of the invention provides a kind of multipoint cooperative set update method, and as shown in Figure 1, this method can comprise:
101,, determine the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection according to scheduling result to the user.
In the present embodiment, the existing C oMP collection before upgrading can be called a CoMP collection, the CoMP collection after upgrading is called the 2nd CoMP collection.A CoMP collection herein can be the CoMP collection selection criterion that adopts based on the signal received power, and perhaps a CoMP collection of determining 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.
Scheduling herein is meant that relevant information according to each user (for example modulating-coding form etc.) determines that next is constantly by which time resource of which CU and/or frequency resource (can be determined also can be determined 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, determine on the cooperation sector of the CoMP user's correspondence among the described CoMP user who is dispatched to, the second overlapping user arranged with a described CoMP CU time resource and/or frequency resource.
Wherein, herein 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.
By determining the second overlapping user to be arranged with a described CoMP CU time resource that is dispatched to and/or frequency resource, thus other users that the CoMP user that can determine to be scheduled for disturbs.
103, add the described CoMP user who is dispatched to, serving sector and cooperation sector, described second user, described second user's serving sector and described second user's the cooperation sector corresponding to the 2nd CoMP collection with the described CoMP user who is dispatched to.
Herein, the one CoMP user can among the CoMP user who is dispatched in 101 any one or a plurality of, in the present embodiment, if exist on the cooperation sector among the CoMP user who is dispatched to who in 101, determines overlapping user is arranged, this class user can be called a CoMP user with its holding time resource and/or frequency resource.For example, suppose that a described CoMP user is CoMP user A, and second user is user B, user B does not belong to the concentrated user of CoMP who determines in 101, if time resource that user B takies and/or frequency resource and user A's is overlapping, the serving sector of user B and user B can 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 described user B.
Wherein, the cooperation sector of described CoMP user's correspondence is to point to the non-serving sector that CoMP user provides cooperation.The CoMP collection selection criterion based on the signal received power can be adopted in the cooperation sector of described CoMP user's correspondence, perhaps determines 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 finished a CoMP collection.
Need to prove, in the present embodiment, can be periodically the CoMP collection to be upgraded, and also can be by 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 by 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, determine the CoMP user that is dispatched in the CoMP collection, on the cooperation sector of the CoMP user's correspondence among the CoMP user who determines to be dispatched to, with a CoMP CU time resource and/or frequency resource the second overlapping user is arranged, with the described CoMP user who is dispatched to, serving sector corresponding and cooperation sector with the described CoMP user who is dispatched to, described second user, described second user's serving sector and described second user's cooperation sector is added the 2nd CoMP collection to.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 are subjected to CoMP user's interference to the CoMP collection, thereby can effectively utilize the user profile that is subjected to 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 herein.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 as follows:
Obtain the SINR (Signal to Interferenceplus Noise Ratio, Signal to Interference plus Noise Ratio) that detects generation according to described the 2nd CoMP collection;
According to described 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 described 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 described the 2nd CoMP collection that can to bring SINR gain be that example describes, in fact, also can consider to produce other whens gain when described the 2nd CoMP collection detects, MCS or time resource and/or frequency resource etc. are adjusted, and 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 by optical fiber radio frequency unit remote technology.
As shown in Figure 2, this method can comprise:
201, obtain scheduling result to the user.
By this step, can know 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 scheduling result herein 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, determine the CoMP user who is dispatched in the CoMP collection to the user.
A CoMP collection herein can be the CoMP collection selection criterion that adopts based on the signal received power, perhaps determines based on the CoMP collection selection criterion of propagated loss.
(1) determine 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,
Be respectively adjacent sectors, serving sector and receive same user's signal received power,
Less than
Be negative value.
(2) determine 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,
Be respectively adjacent sectors, serving sector and receive same user's propagated loss,
Greater than
For on the occasion of.
Certainly, determine that the mode of a CoMP collection is not limited to above-mentioned two kinds, can be alternate manner yet, present embodiment does not exemplify 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 determining initial CoMP collection, and in follow-up CoMP collection upgrades, the CoMP collection that upgrades based on the last time gets final product, 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 determine 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, determine an existing C oMP collection with definite mode of an above-mentioned CoMP collection at every turn.
203, determine on the cooperation sector of the CoMP user's correspondence among the described CoMP user who is dispatched to, the second overlapping user arranged with a described 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: the part 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 is identical, 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, CoMP user A holding time resource and/or frequency resource are identical with a part in 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 described CoMP user who is dispatched to, serving sector and cooperation sector, described second user, described second user's serving sector and described second user's the cooperation sector corresponding to the 2nd CoMP collection with the described CoMP user who is dispatched to.
Wherein, second user does not herein 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 by 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 determines 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 described 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 finishing the 2nd CoMP collection, present embodiment can also comprise:
207, detect according to described the 2nd CoMP collection.
The mode that detects can have multiple, for example can repeat no more with reference to prior art herein.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 as follows:
208, obtain the SINR that detects generation according to described 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 described 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 described SINR second user and the 4th CoMP user's modulating-coding form is adjusted.
Herein, 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, the base station can be according to this SINR, in described mapping table, search corresponding modulating-coding form, 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 described the 2nd CoMP collection that can to bring SINR gain be that example describes, in fact, also can consider to produce other whens gain when described the 2nd CoMP collection detects, MCS or time resource and/or frequency resource etc. are adjusted, and 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 scheduling result after changing can be sent to the user by 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 are subjected to CoMP user's interference to the CoMP collection, thereby can be in carrying out the base station effectively utilize during joint-detection and be subjected to 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 by optical fiber radio frequency unit remote technology.
As shown in Figure 3, this method can comprise:
301, obtain scheduling result to the user.
By this step, can know 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 scheduling result herein 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, determine the CoMP user who is dispatched in the CoMP collection to the user.
Wherein, the mode of determining the CoMP user that is dispatched in the CoMP collection can not repeat them here referring to step 202.
303, determine on the cooperation sector of the CoMP user's correspondence among the described CoMP user who is dispatched to, the second overlapping user arranged with a described CoMP CU time resource and/or frequency resource.
Specifically can not repeat them here referring to step 203.
304, add the described CoMP user who is dispatched to, serving sector and cooperation sector, described second user, described second user's serving sector and described second user's the cooperation sector corresponding to the 2nd CoMP collection with the described CoMP user who is dispatched to.
Wherein, second user does not herein belong to the CoMP user who is dispatched to described in 302.
Specifically can not repeat them here referring to step 204.
In addition, can also upgrade the 2nd CoMP collection by 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 determines 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 not repeat them here referring to step 206.
Wherein, the order between described 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 by 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 the 5th user who in the adjacent base station a plurality of sectors, this base station is caused interference, determine to have the 6th user of this overlapping base station with described the 5th CU time resource and/or frequency resource.
308, add described the 6th user, described the 6th user's serving sector and described the 6th user's cooperation sector to described the 2nd CoMP collection.
Wherein, the 6th user does not herein 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 described the 6th user's serving sector in a plurality of sectors, described this base station as the 6th user's cooperation sector, the 6th user's cooperation sector comprises the sector except that described the 6th user's serving sector in a plurality of sectors, described this base station so.
Wherein, for this base station user, in a plurality of sectors, described 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 come to determine a plurality of sectors of adjacent base station are caused the user of interference in the following way: the user is by measuring down-bound pilot frequency signal, select the cooperation sector, and the cooperation sector that will select sends to the base station, the base station judges whether user-selected cooperation sector 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, determine 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.
Optionally, 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 select one to carry out in 305-306 or 307-308.
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 finishing the 2nd CoMP collection, present embodiment can also comprise:
309, detect according to described the 2nd CoMP collection.
The mode that detects can have multiple, for example can repeat no more with reference to prior art herein.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 as follows:
310, obtain the SINR that detects generation according to described the 2nd CoMP collection.
Specifically can not repeat them here referring to step 208.
311, according to described SINR second user, the 4th CoMP user and the 6th user's modulating-coding form is adjusted.
Specifically can not repeat them here 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 are subjected to CoMP user's interference to the CoMP collection, thereby can when carrying out joint-detection between the base station, effectively utilize and be subjected to 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 as shown in Figure 4, this device can comprise:
Wherein, the cooperation sector of described CoMP user's correspondence is to point to the non-serving sector that CoMP user provides cooperation.
Scheduling herein is meant that relevant information according to each user (for example modulating-coding form etc.) determines that next is constantly by which time resource of which CU and/or frequency resource (can be determined also can be determined by scheduler by the base station), in the present embodiment, existing C oMP collection before upgrading can be called a CoMP collection, the CoMP collection after upgrading is called the 2nd CoMP collection.
Wherein, a described 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 described CoMP user who is dispatched to, described second user does not belong to the described CoMP user who is dispatched to, and described second user's cooperation sector comprises a described 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 the second user B or CoMP user C being added to described the 2nd CoMP concentrates, add the serving sector of this second user B or CoMP user C to the 2nd CoMP collection, with the serving sector of CoMP user A correspondence cooperation sector as the second user B or CoMP user C.
Embodiment of the invention multi-point cooperative set updating device, on the cooperation sector of the CoMP user's correspondence among the CoMP user who determines to be dispatched to, the second overlapping user is arranged, add the described CoMP user who is dispatched to, the serving sector corresponding and cooperate sector, described second user, described second user's serving sector and described second user's cooperation sector to the 2nd CoMP collection with the described 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 are subjected to CoMP user's interference to the CoMP collection, thereby can effectively utilize the user profile that is subjected to 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 as shown in Figure 5, 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 determining that described 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 between a plurality of sectors of same base station carrying out the multi-point cooperative set renewal between multi-point cooperative set renewal and a plurality of sectors of consideration in a plurality of base stations, 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 described 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 described second user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to described SINR, perhaps, according to described SINR described second user and described 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 are subjected to CoMP user's interference to the CoMP collection, thereby can be in carrying out the base station effectively utilize during joint-detection and be subjected to 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 cooperating between the base station 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 the 5th user who in the adjacent base station a plurality of sectors, this base station is caused interference, determine to have the 6th user of this overlapping base station with described the 5th CU time resource and/or frequency resource;
The 3rd update module 411, be used for adding described the 6th user, described the 6th user's serving sector and described the 6th user's cooperation sector to described the 2nd CoMP collection, wherein, described the 6th user does not belong to the described CoMP user who is dispatched to, and described the 6th user's cooperation sector comprises the sector except that described 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 between a plurality of sectors of same base station carrying out the multi-point cooperative set renewal between multi-point cooperative set renewal and a plurality of sectors of consideration in a plurality of base stations, 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 are subjected to CoMP user's interference to the CoMP collection, thereby can when carrying out joint-detection between the base station, effectively utilize and be subjected to 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 specific implementation form of described 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 described 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 provided for 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 multipoint cooperative transmission in the base station or between 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 finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as 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; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art 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, determine the CoMP user who is dispatched in first multipoint cooperative (CoMP) collection to the user;
Determine on the cooperation sector of the CoMP user's correspondence among the described CoMP user who is dispatched to, the second overlapping user arranged with a described CoMP CU time resource and/or frequency resource;
With the described CoMP user who is dispatched to, serving sector corresponding and cooperation sector with the described CoMP user who is dispatched to, described second user, described second user's serving sector and described second user's cooperation sector is added the 2nd CoMP collection to, wherein, a described 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 described CoMP user who is dispatched to, described second user does not belong to the described CoMP user who is dispatched to, and described second user's cooperation sector comprises a described CoMP user's serving sector.
2. method according to claim 1 is characterized in that, described method also comprises:
Determine among the described 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 described the 3rd CoMP user's serving sector is not described the 4th CoMP user's cooperation sector, add described the 3rd CoMP user's serving sector to described the 2nd CoMP collection as described the 4th CoMP user's cooperation sector.
3. method according to claim 1 and 2 is characterized in that, when the collection of cooperating between the base station upgraded, described 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 the 5th user who in the adjacent base station a plurality of sectors, this base station is caused interference;
Determine to have the 6th user of this overlapping base station with described the 5th CU time resource and/or frequency resource;
Add described the 6th user, described the 6th user's serving sector and described the 6th user's cooperation sector to described the 2nd CoMP collection, wherein, described the 6th user does not belong to the described CoMP user who is dispatched to, and described the 6th user's cooperation sector comprises the sector except that described the 6th user's serving sector in a plurality of sectors, described this base station.
4. method according to claim 1 and 2 is characterized in that, described method also comprises:
Detect according to described the 2nd CoMP collection.
5. method according to claim 4 is characterized in that, described detect according to described the 2nd CoMP collection after, described method also comprises:
Obtain the SINR (Signal to Interference plus Noise Ratio) that detects generation according to described the 2nd CoMP collection;
According to described SINR described second user's modulating-coding form and/or time resource and/or frequency resource are adjusted, perhaps, according to described SINR described second user and described 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, described method also comprises:
Detect according to described the 2nd CoMP collection.
7. method according to claim 6 is characterized in that, described detect according to described the 2nd CoMP collection after, described method also comprises:
Obtain the SINR that detects generation according to described the 2nd CoMP collection;
According to described SINR described second user and described the 6th user's modulating-coding form and/or time resource and/or frequency resource are adjusted, perhaps, according to described SINR described second user, the 4th CoMP user and described 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 described basis to the user, before the CoMP user who determines 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 determining the CoMP user who is dispatched in the CoMP collection according to the scheduling result to the user;
Second determination module, be used for determining CoMP user's correspondence of the described CoMP user who is dispatched to the cooperation sector, with a described CoMP CU time resource and/or frequency resource the second overlapping user is arranged;
First update module is used for adding the described CoMP user who is dispatched to, serving sector and cooperation sector, described second user, described second user's serving sector and described second user's the cooperation sector corresponding with the described CoMP user who is dispatched to the 2nd CoMP collection;
Wherein, a described 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 described CoMP user who is dispatched to, described second user does not belong to the described CoMP user who is dispatched to, and described second user's cooperation sector comprises a described CoMP user's serving sector.
10. device according to claim 9 is characterized in that, also comprises:
The 3rd determination module is used for determining that described 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 described the 3rd CoMP user's serving sector is not described the 4th CoMP user's cooperation sector, adds described the 3rd CoMP user's serving sector to described the 2nd CoMP collection as described the 4th CoMP user's cooperation sector.
11., it is characterized in that when the collection of cooperating upgraded, described device also comprised according to claim 9 or 10 described devices between the base station:
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 the 5th user who in the adjacent base station a plurality of sectors, this base station is caused interference, determine to have the 6th user of this overlapping base station with described the 5th CU time resource and/or frequency resource;
The 3rd update module, be used for adding described the 6th user, described the 6th user's serving sector and described the 6th user's cooperation sector to described the 2nd CoMP collection, wherein, described the 6th user does not belong to the described CoMP user who is dispatched to, and described the 6th user's cooperation sector comprises the sector except that described the 6th user's serving sector in a plurality of sectors, described this base station.
12. according to claim 9 or 10 described devices, it is characterized in that, also comprise:
First detection module is used for detecting according to described 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 described the 2nd CoMP collection;
First adjusting module, be used for described second user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to described SINR, perhaps, according to described SINR described second user and described 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 described 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 described the 2nd CoMP collection;
Second adjusting module, be used for described second user and described the 6th user's modulating-coding form and/or time resource and/or frequency resource being adjusted according to described SINR, perhaps, according to described SINR described second user, the 4th CoMP user and described 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 described 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 described first determination module according to scheduling result to the user, determine 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 as claim 9-16.
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| WO2015168839A1 (en) * | 2014-05-05 | 2015-11-12 | 华为技术有限公司 | Base station system and device and coordinated multiple point processing method |
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