CN101478342B - Method for cooperative scheduling between multiple districts in multi-antenna cellular communication system - Google Patents
Method for cooperative scheduling between multiple districts in multi-antenna cellular communication system Download PDFInfo
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- CN101478342B CN101478342B CN 200910077815 CN200910077815A CN101478342B CN 101478342 B CN101478342 B CN 101478342B CN 200910077815 CN200910077815 CN 200910077815 CN 200910077815 A CN200910077815 A CN 200910077815A CN 101478342 B CN101478342 B CN 101478342B
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Abstract
The invention relates to a method for cooperating and scheduling multiple cells in a multi-antennae cellular communication system, and belongs to the technical field of communication. The method comprises the following steps: all the cells are clustered in the multi-antennae cellular communication system, wherein each cluster contains multiple cells, each cell contains a base station and multiple users and the base station transmits the data by use of the beams matching with the user channel; the priority sequence of the multiple cells in the individual clusters is randomly designated respectively; and the data is transmitted to the users in the individual cells respectively in each cluster according to the levels of the designated priority sequence of cell, wherein the user meets the requirement that the beam used in the base station of the cell has minimal interference to the selected users in the cluster. The method effectively reduces the interference among cells in the scheduling phase and achieves the effect of low complexity. Compared with the prior multi-cell combined signal processing project, the method doesn't need to change the structure of the existing cellular network and is put into practice more quickly.
Description
Technical field
The present invention relates in a kind of many antenna cellular communication systems the method for cooperative scheduling between many residential quarters, belong to communication technical field.
Background technology
In recent years, along with the wireless and rapidly development mobile communication business demand, the performance requirement of future wireless is also improved constantly, wherein a very important index is the traffic rate that Cell Edge User can obtain.Because the performance of Cell Edge User mainly is subject to adjacent cell and disturbs, and sends the reduction presence of intercell interference so academia has proposed multi-plot joint.In the system that adopts multi-cell cooperating to send, each base station can be regarded virtual-antenna as, it is one or more users' services that the transmission technology that utilization is similar to multiple-input, multiple-output (MIMO) can realize using a plurality of base stations, thereby can be converted to useful signal to the adjacent cell interference signal, improve the performance of Cell Edge User.
Although sending, multi-plot joint can obtain larger gain, but will realize still acquiring a certain degree of difficulty in real system: each base station that at first participates in the associating transmission all needs to obtain all users' packet, can require the supporting network between the base station to have larger capacity when user rate is higher; At user side the signal that comes from a plurality of base stations is carried out the also relatively more difficult synchronously of time and frequency in addition.
On the other hand, in many antenna cellular communication systems, beam forming is the lower delivery plan of a kind of implementation complexity, by using the transmission wave beam that is complementary with serviced subscriber channel, can maximize available signal power, improves service quality.But this transmission wave beam may cause to the user that other residential quarters in the system are served larger interference.
Summary of the invention
The objective of the invention is to propose in a kind of many antenna cellular communication systems the method for cooperative scheduling between many residential quarters, with lower implementation complexity, reduce sending the interference that wave beam causes other community users in the system.
The method of cooperative scheduling between many residential quarters in many antenna cellular communication systems that the present invention proposes may further comprise the steps:
(1) sub-clustering is carried out in all residential quarters in many antenna cellular communication systems, comprise a plurality of residential quarters in each bunch, comprise a base station and a plurality of user in each residential quarter, the base station uses the wave beam that is complementary with subscriber channel to send data;
(2) respectively to any assigned priority order in a plurality of residential quarters in above-mentioned each bunch;
(3) respectively according to the height of the priority orders of the residential quarter of above-mentioned appointment, in each bunch, select successively a residential quarter, in the residential quarter of this selection, select a user to send data, this user satisfy wave beam that cell base station uses to bunch in selecteed user's interference minimum, detailed process is as follows:
Communication system comprises N residential quarter, wherein each residential quarter comprises that one has the base station of many antennas and the user of K outfit single antenna or many antennas, communication system is carried out sub-clustering, adjacent a plurality of residential quarters form one bunch, 19 adjacent residential quarters form one bunch, use respectively C-0 to represent to C-6,19 residential quarters in bunch use 0～18 as the residential quarter label; Residential quarter assigned priority order at first being bunch, the priority orders of residential quarter is specified arbitrarily in bunch; Priority orders according to 0～18 is dispatched, and at first dispatch residential quarter 0, does not consider the interference of user in 1～18 pair of residential quarter 0, residential quarter this moment, and the highest user of residential quarter 0 selective channel gain serves, and remembers that this user is
Namely
Wherein
Channel between the base station in k user and the residential quarter 0 in the expression residential quarter 0; Afterwards residential quarter 0 by the wired connection net between the base station the user
Channel condition information
Notice is to residential quarter 1; Residential quarter 1 obtains h
0After, search in this residential quarter, find to meet
The user
Serve, simultaneously will
With
Notice is to residential quarter 2; 2 of residential quarters are selected and are met
Finish the scheduling of residential quarter 3～18 according to similar step.The method of cooperative scheduling between many residential quarters in many antenna cellular communication systems that the present invention proposes by mutual exchange message between the residential quarter, just can effectively reduce the interference of minizone at scheduling phase, and implementation complexity is lower.Compare with existing multi-plot joint signal processing scheme, the method need not to change the structure of existing cellular network, therefore can be applied more rapidly.
Description of drawings
Fig. 1 is the schematic network structure of the inventive method.
Fig. 2 is bunch inner structure schematic diagram in the network shown in Figure 1.
Embodiment
The method of cooperative scheduling between many residential quarters in many antenna cellular communication systems that the present invention proposes, its network configuration may further comprise the steps as shown in Figure 1:
(1) sub-clustering is carried out in all residential quarters in many antenna cellular communication systems, comprise a plurality of residential quarters in each bunch, comprise a base station and a plurality of user in each residential quarter, the base station uses the wave beam that is complementary with subscriber channel to send data;
(2) respectively to any assigned priority order in a plurality of residential quarters in above-mentioned each bunch;
(3) respectively according to the height of the priority orders of the residential quarter of above-mentioned appointment, in each bunch, select successively a residential quarter, in the residential quarter of this selection, select a user to send data, this user satisfy wave beam that cell base station uses to bunch in selecteed user's interference minimum, detailed process is as follows:
Communication system comprises N residential quarter, wherein each residential quarter comprises that one has the base station of many antennas and the user of K outfit single antenna or many antennas, communication system is carried out sub-clustering, adjacent a plurality of residential quarters form one bunch, 19 adjacent residential quarters form one bunch, use respectively C-0 to represent to C-6,19 residential quarters in bunch use 0～18 as the residential quarter label; Residential quarter assigned priority order at first being bunch, the priority orders of residential quarter is specified arbitrarily in bunch; Priority orders according to 0～18 is dispatched, and at first dispatch residential quarter 0, does not consider the interference of user in 1～18 pair of residential quarter 0, residential quarter this moment, and the highest user of residential quarter 0 selective channel gain serves, and remembers that this user is
Namely
Wherein
Channel between the base station in k user and the residential quarter 0 in the expression residential quarter 0; Afterwards residential quarter 0 by the wired connection net between the base station the user
Channel condition information
Notice is to residential quarter 1; Residential quarter 1 obtains h
0After, search in this residential quarter, find to meet
The user
Serve, simultaneously will
With
Notice is to residential quarter 2; 2 of residential quarters are selected and are met
Finish the scheduling of residential quarter 3～18 according to similar step.
The cellular communication system of the below in Fig. 1 be institute of the present invention extracting method as example illustrates.In this example, wireless communication system comprises N residential quarter, and wherein each residential quarter comprises that one has the base station of many antennas and the user of K outfit single antenna or many antennas.
At first the cellular communication system among Fig. 1 is carried out sub-clustering, adjacent a plurality of residential quarters form one bunch, and the rule of sub-clustering can be static constant, also can be dynamic change.Adjacent 19 residential quarters form one bunch in this example, use respectively C-0 to represent to C-6, the border of using the overstriking frame to represent bunch in Fig. 1.Structural representation in Fig. 2 has provided one bunch, wherein circle represents cell base station, and square represents the user in the residential quarter, and 19 residential quarters in bunch use 0～18 as the residential quarter label.Residential quarter assigned priority order at first being bunch, the priority orders of residential quarter can be specified arbitrarily in bunch.Priority orders according to 0～18 in this example is dispatched, and at first dispatch residential quarter 0, and need not to consider the interference of user in 1～18 pair of residential quarter 0, residential quarter this moment, so residential quarter 0 can the highest user of selective channel gain serve, and remembers that this user is
Namely
Wherein
Channel between the base station in k user and the residential quarter 0 in the expression residential quarter 0.Afterwards residential quarter 0 by the wired connection net between the base station the user
Channel condition information
Notice is to residential quarter 1.Residential quarter 1 obtains h
0After, search in this residential quarter, find to meet
The user
Serve, simultaneously will
With
Notice is to residential quarter 2.2 of residential quarters are selected and are met
Finish the scheduling of residential quarter 3～18 according to similar step.
Claims (1)
1. the method for cooperative scheduling between many residential quarters in the antenna cellular communication system more than a kind is characterized in that the method may further comprise the steps:
(1) sub-clustering is carried out in all residential quarters in many antenna cellular communication systems, comprise a plurality of residential quarters in each bunch, comprise a base station and a plurality of user in each residential quarter, the base station uses the wave beam that is complementary with subscriber channel to send data;
(2) respectively to any assigned priority order in a plurality of residential quarters in above-mentioned each bunch;
(3) respectively according to the height of the priority orders of the residential quarter of above-mentioned appointment, in each bunch, select successively a residential quarter, in the residential quarter of this selection, select a user to send data, this user satisfy wave beam that cell base station uses to bunch in selecteed user's interference minimum, detailed process is as follows:
Communication system comprises N residential quarter, wherein each residential quarter comprises that one has the base station of many antennas and the user of K outfit single antenna or many antennas, communication system is carried out sub-clustering, and 19 adjacent residential quarters form one bunch, and 19 residential quarters in bunch use 0～18 as the residential quarter label; Residential quarter assigned priority order at first being bunch, priority orders according to 0～18 is dispatched, and at first dispatch residential quarter 0, does not consider the interference of user in 1～18 pair of residential quarter 0, residential quarter this moment, the residential quarter the highest user of 0 selective channel gain serves, and remembers that this user is
Namely
Wherein
Channel between the base station in k user and the residential quarter 0 in the expression residential quarter 0; Afterwards residential quarter 0 by the wired connection net between the base station the user
Channel condition information
Notice is to residential quarter 1; Residential quarter 1 obtains
After, search in this residential quarter, find to meet
The user
Serve, simultaneously will
With
Notice is to residential quarter 2; 2 of residential quarters are selected and are met
Finish the scheduling of residential quarter 3～18, wherein k according to similar step
1K user in the expression residential quarter 1, k
2K user in the expression residential quarter 2, K
1User's number in the expression residential quarter 1, K
2User's number in the expression residential quarter 2,
K user's channel condition information in the expression residential quarter 1,
K user's channel condition information in the expression residential quarter 2.
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| CN 200910077815 CN101478342B (en) | 2009-01-22 | 2009-01-22 | Method for cooperative scheduling between multiple districts in multi-antenna cellular communication system |
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| CN 200910077815 CN101478342B (en) | 2009-01-22 | 2009-01-22 | Method for cooperative scheduling between multiple districts in multi-antenna cellular communication system |
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| CN101478342B true CN101478342B (en) | 2013-04-03 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958738B (en) * | 2009-07-20 | 2016-08-03 | 华为技术有限公司 | A kind of mthods, systems and devices of the pretreatment of collaboration communication |
| US8923844B2 (en) * | 2009-08-14 | 2014-12-30 | Futurewei Technologies, Inc. | Coordinated beam forming and multi-user MIMO |
| US9037174B2 (en) * | 2009-09-02 | 2015-05-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for improving radio network characteristics |
| CN102098737B (en) * | 2009-12-11 | 2014-02-26 | 中兴通讯股份有限公司 | Cell priority level based cooperation scheduling method and system |
| CN102098736B (en) * | 2009-12-11 | 2015-06-03 | 中兴通讯股份有限公司 | User scheduling method and base station in cooperation scheduling |
| CN102104963B (en) * | 2009-12-17 | 2014-03-12 | 中兴通讯股份有限公司 | Method and system for coordinately scheduling in multi-point coordinated transmission |
| CN102158974B (en) * | 2010-02-11 | 2014-03-26 | 华为技术有限公司 | Cooperative resource scheduling method, device, base station and system |
| CN102158962B (en) * | 2010-02-11 | 2014-01-01 | 华为技术有限公司 | Clustering method, resource allocation method and related equipment for base station cooperation |
| CN102215585B (en) * | 2010-04-02 | 2015-04-15 | 电信科学技术研究院 | Method and device for pairing multiple users |
| CN102170704B (en) * | 2011-05-25 | 2013-11-06 | 北京工业大学 | Uplink multi-cell base station cooperative user scheduling method |
| CN103281702B (en) * | 2013-05-31 | 2015-10-28 | 东南大学 | A kind of collaboration communication method based on multiple cell dynamic clustering |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1968239A (en) * | 2005-11-17 | 2007-05-23 | 松下电器产业株式会社 | Carrier allocation method for multi-cell orthogonal frequency division multiple address system |
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| CN1968239A (en) * | 2005-11-17 | 2007-05-23 | 松下电器产业株式会社 | Carrier allocation method for multi-cell orthogonal frequency division multiple address system |
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| M. KEMAL KARAKAYALI等.NETWORK COORDINATION FOR SPECTRALLY EFFICIENT COMMUNICATIONS IN CELLULAR SYSTEMS.《IEEE》.2006,56-61. * |
| 彭聪、姚彦.基于网络编码的新型协作分集方案.《IEEE》.2008,第24卷(第5-3期),105-106、168. * |
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