CN102802219A - Coordinated-multiple-point (Comp)-based service switching method and system - Google Patents
Coordinated-multiple-point (Comp)-based service switching method and system Download PDFInfo
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- CN102802219A CN102802219A CN2011101401655A CN201110140165A CN102802219A CN 102802219 A CN102802219 A CN 102802219A CN 2011101401655 A CN2011101401655 A CN 2011101401655A CN 201110140165 A CN201110140165 A CN 201110140165A CN 102802219 A CN102802219 A CN 102802219A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
Abstract
The invention discloses a coordinated-multiple-point (Comp)-based service switching method and a Comp-based service switching system. By the method and the system, when a cell which serves for a service is insufficient in resources, the service can be switched to a target cell which meets resource requirements in a Comp cell cluster to which the cell serving for the service belongs. By using a Comp-based service switching technology, the service can be switched in the multiple point coordination operating process, service quality can be improved, the throughput of the edge of a cell can be increased, and the satisfaction degree of users can be improved.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of business switch method and system based on multipoint cooperative (Comp).
Background technology
Multipoint cooperative transmission and reception technique (Coordinated Multiple Point Transmission and Reception) are in order further to satisfy LTE (long term evolution; Long Term Evolution) system proposes for edge customer throughput, edge customer frequency efficiency and entire system performance; This technological core concept is: a plurality of transmission points with locus adjacency are simultaneously to a user or a plurality of user service, and its principle schematic is as shown in Figure 1.
Compared to existing LTE network frame and design concept; The maximum that multipoint cooperative transmission and reception technique are introduced change be UE (User Equipment, subscriber equipment) will be simultaneously with a plurality of locus on adjacent sub-district carry out the operation of Data Receiving and transmission.In this case; The collaborative work of how coordinating between the sub-district of a plurality of position separating, independent operating just seems very important; Need to introduce the notion of centralized management this moment, promptly has master control sub-district and assisted cell, and the former is responsible for the selection of the sub-district of all collaborative works, the contents such as assignment that state is collected, analyzed, dispatches; Carry out with user's data alternately simultaneously, function is comparatively complicated; And the latter mainly be responsible for the mutual of oneself state and with contents such as user data is mutual, function is comparatively simple; And, both under certain conditions the role can exchange, for different users, same sub-district possibly taken on two kinds of different roles simultaneously.
In the LTE system; When user's business is not being met or service quality when descending in current service cell; Generally can take to exclude or reduce the way of service quality; This causes multipoint cooperative transmission and the edge customer throughput that receives under the scene reduces, the reduction of this service quality and then reduced user satisfaction.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of business switch method and system based on Comp, improves the edge customer throughput, improves service quality and user satisfaction.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of business switch method based on multipoint cooperative Comp, this method comprises:
When inadequate resource occurring, in the Comp cell set under the said sub-district that is business service, said business is switched to the Target cell that satisfies resource requirement for the sub-district of business service.
Said Target cell confirms that through selecting said system of selection is:
Mode one, according to the information of other sub-districts in the Comp sub-district, filter out the cell set that surplus resources satisfies said business, therefrom select the sub-district satisfy resource requirement, with this sub-district as professional switching target small area;
Perhaps,
Mode two, according to the information of other sub-districts in the Comp sub-district, the sub-district that the sub-district surplus resources of receiving is the earliest satisfied said business is as the Target cell of choosing.
In the mode one, the operation of said screening cell set is carried out by the sub-district that is business service, and said selection is satisfied the operation of sub-district of resource requirement by user equipment (UE) or for carrying out the sub-district of business service.
This method also comprises:
In the mode one, when handoff failure, surplus resources is satisfied time good sub-district of channel quality in the cell set of said business, carry out business switching as Target cell.
This method also comprises:
In the mode two, be that the feedback information of other sub-district in the follow-up said Comp cell set of receiving is stored in the said sub-district of business service, so that behind said professional handoff failure, carry out being directed against the switching of Target cell next time.
A kind of service switchover system based on Comp, this system comprises resource statistics unit, Comp sub-district switch unit; Wherein,
Said resource statistics unit, inadequate resource appears in the sub-district that is used to confirm as business service, and gives said Comp sub-district switch unit with this advisory;
Said Comp sub-district switch unit is used in for the Comp cell set under the said sub-district of business service, said business being switched to the Target cell that satisfies resource requirement.
Said Target cell confirms that through selecting said Comp sub-district switch unit is used for when carrying out said selection:
Mode one, according to the information of other sub-districts in the Comp sub-district, filter out the cell set that surplus resources satisfies said business so that therefrom select the sub-district satisfy resource requirement, with this sub-district as professional switching target small area;
Perhaps,
Mode two, according to the information of other sub-districts in the Comp sub-district, the sub-district that the sub-district surplus resources of receiving is the earliest satisfied said business is as the Target cell of choosing.
In the mode one, said Comp sub-district switch unit is filtering out after surplus resources satisfies the cell set of said business, also is used for:
Satisfy from the surplus resources that filters out and to select the sub-district of satisfying resource requirement the cell set of said business, with this sub-district as professional switching target small area;
Perhaps, the cell set that the surplus resources that filters out is satisfied said business sends to UE, trigger UE and from the cell set of receiving, select the sub-district of satisfying resource requirement, with this sub-district as professional switching target small area.
Said Comp sub-district switch unit also is used for:
In the mode one, when handoff failure, surplus resources is satisfied time good sub-district of channel quality in the cell set of said business, carry out business switching as Target cell.
Said Comp sub-district switch unit also is used for:
In the mode two, store the feedback information of other sub-district in the follow-up said Comp cell set of receiving, so that behind said professional handoff failure, carry out being directed against the switching of Target cell next time.
The present invention is based on the professional handoff technique of Comp, all solved and how to have carried out the professional problem of switching in the multipoint cooperative operation, can improve quality of service, improve the cell edge throughput, improve user satisfaction.
Description of drawings
Fig. 1 is the multipoint cooperative principle schematic;
Fig. 2 is the professional switching principle sketch map that the present invention is based on Comp;
Fig. 3 is the professional switching flow figure based on Comp of the embodiment of the invention 1;
Fig. 4 is the professional switching flow figure based on Comp of the embodiment of the invention 2;
Fig. 5 is the professional switching flow figure based on Comp of the embodiment of the invention 3;
Fig. 6 is the professional switching flow sketch based on Comp of the embodiment of the invention;
Fig. 7 is the service switchover system figure based on Comp of the embodiment of the invention.
Embodiment
When practical application, can carry out flow process as shown in Figure 2, this flow process may further comprise the steps:
Step 201: to carry out the surplus resources statistics for the sub-district of business service.
Step 202: whether the surplus resources of sub-district that is judged as business service is sufficient, if sufficient, returns step 201; Otherwise, get into step 203.
Step 203: whether the sub-district that is judged as business service belongs to the CoMP sub-district; If belong to the CoMP sub-district; Then in the Comp cell set under the said sub-district that is business service, said business is switched to the Target cell that satisfies resource requirement, and got into step 204; Otherwise, get into step 210.
Step 204: judge whether the CoMP Zone switches successful, if step 201 is returned in success; Otherwise, get into step 210.
Step 210: carry out subsequent operation of the prior art, as discharge business or reduce service quality.
Below in conjunction with accompanying drawing the present invention is described in detail.
Embodiment 1, situation about being not being met for downlink business;
Need to prove, the mutual cell information in each minizone in the Comp cell set, cell information comprises surplus resources at least;
As shown in Figure 3, embodiment 1 said situation specifically may further comprise the steps:
Step 1: UE carries out business in the main plot;
Step 2: the main plot detects this UE and carries out professional service quality (Qos) and can not be met;
Step 3: the main plot filters out surplus resources and satisfies the cell set that this UE carries out professional Qos resource requirement according to the information of other sub-districts in the Comp sub-district that obtains, and with this cell set notice UE, supplies UE to select the sub-district that will switch;
Step 4: UE selects the best sub-district of channel quality according to channel quality from the cell set of receiving, professional handover request as professional switching target small area, and is sent to the main plot in this sub-district;
Step 5: professional handoff request is sent to said Target cell after receiving the professional handover request of this UE in the main plot, and the request target sub-district is carried out professional the switching and prepared; The Qos information of the business that said professional handoff request comprises this UE at least to be switched;
Step 6: the Qos information that is comprised in the professional handoff request that Target cell is sent according to the main plot is set up service bearer for this UE, and sends response message to the main plot setting up successfully the back;
This step relates to the Universal Terrestrial Radio Access Network RAB (E_RAB) of evolution and sets up request and E_RAB foundation response.
Step 7: the main plot discharges the information of said business on the main plot of this UE;
Step 8: UE carries out business at Target cell.
Embodiment 2, situation about being not being met for uplink service;
Need to prove, the periodically mutual cell information in each minizone in the Comp cell set, cell information comprises surplus resources, channel quality at least;
As shown in Figure 4, embodiment 2 said situation specifically may further comprise the steps:
Step 1: UE carries out business in the main plot;
Step 2: the main plot detects this UE and carries out professional Qos and can not be met;
Step 3: the main plot filters out surplus resources and satisfies the cell set that this UE carries out professional Qos resource requirement, and according to channel quality sorted in the sub-district in the cell set according to the information of other sub-districts, Comp sub-district that obtained;
Step 4: professional handoff request is at first sent to the best sub-district of channel quality (with this sub-district as professional switching target small area) in the main plot; The Qos information of the business that said professional handoff request comprises this UE at least to be switched;
Step 5: Target cell is received professional handoff request; At this moment; The surplus resources that Target cell detects self satisfies the Qos resource requirement of the business that this UE switches, and then for this UE sets up service bearer, and sends representative to the main plot and sets up successful response message setting up successfully the back;
This step relates to E_RAB and sets up request and E_RAB foundation response.
Step 6: the main plot discharges the information of said business on the main plot of this UE;
Step 7: UE carries out business at Target cell.
In step 5, if detecting the surplus resources of self, Target cell do not satisfy the demands, then reply the response message of representative refusal; Professional handoff request is sent to channel quality time good sub-district after receiving this response message in the main plot, and process afterwards is identical to the process of step 7 with step 5.
Embodiment 3, situation about being not being met for uplink service;
Need to prove, the periodically mutual cell information in each minizone in the Comp cell set, cell information comprises surplus resources at least;
As shown in Figure 5, embodiment 3 said situation specifically may further comprise the steps:
Step 1: UE carries out business in the main plot;
Step 2: the main plot detects this UE and carries out professional Qos and can not be met;
Step 3: the professional Target cell that switches is carried out according to the Information Selection of other sub-districts in the Comp sub-district that obtains in the main plot, and the sub-district surplus resources of receiving is the earliest satisfied the sub-district of Qos resource requirement that this UE carries out business as the Target cell of choosing; Before the main plot obtains the response message of handover success, can store the follow-up sub-district surplus resources of receiving and satisfy the cell ID that this UE carries out professional Qos resource requirement, so that behind professional handoff failure, carry out the selection of Target cell next time quickly;
Step 4: professional handoff request is sent to Target cell immediately in the main plot after choosing the Target cell that satisfies business demand; The Qos information of the business that said professional handoff request comprises this UE at least to be switched;
Step 5: Target cell is received professional handoff request, for this UE sets up service bearer, and after setting up successfully, sends representative to the main plot and sets up successful response message;
This step relates to E_RAB and sets up request and E_RAB foundation response.
Step 6: the main plot discharges the information of said business on the main plot of this UE;
Step 7: UE carries out business at Target cell.
In the step 5, do not satisfy business demand if Target cell detects the self residual resource, then reply the response message of representing handoff failure, this moment, the main plot selected next Target cell and execution in step four to step 7.
Need to prove that among the above embodiment, the main plot is to be the sub-district of business service, Target cell is a cooperation cell.But in practical application, be that the sub-district of business service might be main plot or cooperation cell, Target cell might be main plot or cooperation cell equally.
Visible in conjunction with above embodiment, the professional handover operation thinking that the present invention is based on Comp can be represented flow process as shown in Figure 6, and this flow process may further comprise the steps:
Step 610: the situation of inadequate resource appears in the sub-district of confirming as business service.
Step 620: in the Comp cell set under the said sub-district that is business service, said business is switched to the Target cell that satisfies resource requirement.
In order to guarantee that above-mentioned each embodiment and operation thinking can realize smoothly, can carry out setting as shown in Figure 7.Referring to Fig. 7, Fig. 7 is the service switchover system figure based on Comp of the embodiment of the invention, and this system comprises continuous resource statistics unit, Comp sub-district switch unit.
When practical application, the situation of inadequate resource appears in the sub-district that business service can be confirmed as in the resource statistics unit, and gives Comp sub-district switch unit with this advisory; In the Comp cell set of Comp sub-district switch unit under the said sub-district that is business service, said business is switched to the Target cell that satisfies resource requirement.
Visible in sum, no matter be method or system, the present invention is based on the professional handoff technique of Comp, all solved and how to have carried out the professional problem of switching in the multipoint cooperative operation, can improve quality of service, improve the cell edge throughput, improve user satisfaction.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the business switch method based on multipoint cooperative Comp is characterized in that, this method comprises:
When inadequate resource occurring, in the Comp cell set under the said sub-district that is business service, said business is switched to the Target cell that satisfies resource requirement for the sub-district of business service.
2. method according to claim 1 is characterized in that, said Target cell confirms that through selecting said system of selection is:
Mode one, according to the information of other sub-districts in the Comp sub-district, filter out the cell set that surplus resources satisfies said business, therefrom select the sub-district satisfy resource requirement, with this sub-district as professional switching target small area;
Perhaps,
Mode two, according to the information of other sub-districts in the Comp sub-district, the sub-district that the sub-district surplus resources of receiving is the earliest satisfied said business is as the Target cell of choosing.
3. method according to claim 2 is characterized in that,
In the mode one, the operation of said screening cell set is carried out by the sub-district that is business service, and said selection is satisfied the operation of sub-district of resource requirement by user equipment (UE) or for carrying out the sub-district of business service.
4. according to claim 2 or 3 described methods, it is characterized in that this method also comprises:
In the mode one, when handoff failure, surplus resources is satisfied time good sub-district of channel quality in the cell set of said business, carry out business switching as Target cell.
5. according to claim 2 or 3 described methods, it is characterized in that this method also comprises:
In the mode two, be that the feedback information of other sub-district in the follow-up said Comp cell set of receiving is stored in the said sub-district of business service, so that behind said professional handoff failure, carry out being directed against the switching of Target cell next time.
6. the service switchover system based on Comp is characterized in that, this system comprises resource statistics unit, Comp sub-district switch unit; Wherein,
Said resource statistics unit, inadequate resource appears in the sub-district that is used to confirm as business service, and gives said Comp sub-district switch unit with this advisory;
Said Comp sub-district switch unit is used in for the Comp cell set under the said sub-district of business service, said business being switched to the Target cell that satisfies resource requirement.
7. system according to claim 6 is characterized in that, said Target cell confirms that through selecting said Comp sub-district switch unit is used for when carrying out said selection:
Mode one, according to the information of other sub-districts in the Comp sub-district, filter out the cell set that surplus resources satisfies said business so that therefrom select the sub-district satisfy resource requirement, with this sub-district as professional switching target small area;
Perhaps,
Mode two, according to the information of other sub-districts in the Comp sub-district, the sub-district that the sub-district surplus resources of receiving is the earliest satisfied said business is as the Target cell of choosing.
8. system according to claim 7 is characterized in that,
In the mode one, said Comp sub-district switch unit is filtering out after surplus resources satisfies the cell set of said business, also is used for:
Satisfy from the surplus resources that filters out and to select the sub-district of satisfying resource requirement the cell set of said business, with this sub-district as professional switching target small area;
Perhaps, the cell set that the surplus resources that filters out is satisfied said business sends to UE, trigger UE and from the cell set of receiving, select the sub-district of satisfying resource requirement, with this sub-district as professional switching target small area.
9. according to claim 7 or 8 described systems, it is characterized in that said Comp sub-district switch unit also is used for:
In the mode one, when handoff failure, surplus resources is satisfied time good sub-district of channel quality in the cell set of said business, carry out business switching as Target cell.
10. according to claim 7 or 8 described systems, it is characterized in that said Comp sub-district switch unit also is used for:
In the mode two, store the feedback information of other sub-district in the follow-up said Comp cell set of receiving, so that behind said professional handoff failure, carry out being directed against the switching of Target cell next time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101401655A CN102802219A (en) | 2011-05-27 | 2011-05-27 | Coordinated-multiple-point (Comp)-based service switching method and system |
| PCT/CN2012/071623 WO2012163116A1 (en) | 2011-05-27 | 2012-02-24 | Comp based service switching method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101401655A CN102802219A (en) | 2011-05-27 | 2011-05-27 | Coordinated-multiple-point (Comp)-based service switching method and system |
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| CN102802219A true CN102802219A (en) | 2012-11-28 |
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| CN2011101401655A Pending CN102802219A (en) | 2011-05-27 | 2011-05-27 | Coordinated-multiple-point (Comp)-based service switching method and system |
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| WO (1) | WO2012163116A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304341A (en) * | 2015-05-13 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of cooperation implementation method and device |
| CN108243505A (en) * | 2016-12-26 | 2018-07-03 | 中国移动通信集团广东有限公司 | A kind of resource regulating method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2359634B1 (en) * | 2008-09-30 | 2012-11-07 | Telefonaktiebolaget L M Ericsson (PUBL) | Methods and arrangements for dynamically adjusting the rate of sub cell searching in coordinated multiple point transmission/reception, comp, cells |
| US8737296B2 (en) * | 2008-10-24 | 2014-05-27 | Qualcomm Incorporated | Method and apparatus for anchor cell designation in network MIMO |
| KR101572891B1 (en) * | 2009-01-30 | 2015-11-30 | 엘지전자 주식회사 | Method of adaptive selecting of CoMP scheme |
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2011
- 2011-05-27 CN CN2011101401655A patent/CN102802219A/en active Pending
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2012
- 2012-02-24 WO PCT/CN2012/071623 patent/WO2012163116A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304341A (en) * | 2015-05-13 | 2017-01-04 | 中兴通讯股份有限公司 | A kind of cooperation implementation method and device |
| CN108243505A (en) * | 2016-12-26 | 2018-07-03 | 中国移动通信集团广东有限公司 | A kind of resource regulating method and device |
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| Publication number | Publication date |
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| WO2012163116A1 (en) | 2012-12-06 |
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Application publication date: 20121128 |