CN102026274A - Method and device for selecting coordinated points in heterogeneous network - Google Patents
Method and device for selecting coordinated points in heterogeneous network Download PDFInfo
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- CN102026274A CN102026274A CN2010105852705A CN201010585270A CN102026274A CN 102026274 A CN102026274 A CN 102026274A CN 2010105852705 A CN2010105852705 A CN 2010105852705A CN 201010585270 A CN201010585270 A CN 201010585270A CN 102026274 A CN102026274 A CN 102026274A
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Abstract
The invention discloses a method and device for selecting coordinated points in a heterogeneous network. The method for selecting coordinated points in the heterogeneous network comprises: a base station determines the region in which a client is located and a position message parameter and configures a threshold of the position message parameter; the base station compares a measured position message parameter value with the threshold of the position message parameter, so as to determine a coordinated point selection policy; and the base station determines the coordinated points according to the coordinated point selection policy. Compared with the prior art, the technical scheme in the invention limits regions requiring CoMP (coordinated multi-point) by effective division on coverage area, thus obviously reducing the spending of information needing to be interacted among all the coordinated points in CoMP and further reducing system spending by the combination of dynamic selection and static selection of coordinated points, and a coordinated controller is arranged for coordinated points of different types in the heterogeneous network, thus effectively reducing the spending of information needing to be interacted on related coordinated points when the coordinated points are required to be selected and switched again.
Description
Technical field
The present invention relates to communication technical field, relate in particular to cooperation point system of selection and device in a kind of heterogeneous network.
Background technology
In follow-on broadband wireless communication network, solve user terminal (User Equipment in minizone in the cordless communication network, UE) throughput and average user terminal throughput, the particularly throughput of Cell Edge User terminal and peak rate are key factors and are faced with formidable challenges.
At present, (Collaborative Multiple Point, CoMP) method of transmission/reception solves this problem all to propose to adopt the multipoint cooperative multiple spot in IEEE 802.16j, IMT-Advanced, WINNER.
The basic conception of CoMP transmission/reception is that (BaseStation, uniting BS) and between sole user's terminal sends and receive for the base station of a plurality of cooperations on identical Radio Resource.Two essential characteristics are arranged:
(1) each user terminal can be on identical Radio Resource by base station collaboration by a plurality of base stations united services.By such way, presence of intercell interference can be alleviated, or changes into useful signal power.
(2) a plurality of user terminals can be served in each base station on identical Radio Resource.By such way.All sector throughput are enhanced.
But in CoMP transmission/reception implementation process, using identical resource in a plurality of base stations of cooperation is a subscriber terminal service, can cause the waste of resource; In having the up link of presence of intercell interference, when selecting simultaneously when the user terminal of cell edge carries out CoMP transmission/reception, may cause serious presence of intercell interference, and then cell edge throughput, peak rate and average cell throughout are significantly reduced.
Summary of the invention
For achieving the above object, the present invention proposes cooperation point system of selection and device in a kind of heterogeneous network.
Cooperation point system of selection in a kind of heterogeneous network, described method comprises:
User side region and location message parameter are determined in the base station, and the location message parameter threshold is set;
Base station contrast location message measured value of parameters and location message parameter threshold are determined the cooperation point selection strategy;
Cooperation point is determined according to the cooperation point selection strategy in the base station.
Further, described cooperation point is according to other cooperation points of measurement Dynamic Selection to different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
Parameter when further, area dividing is determined in described base station is also determined the area dividing threshold value according to parameter; Described user side is measured the definite location message parameter of determining the base station of area dividing parameter and base station, and reporting base station; Described base station measurement of comparison value and area dividing threshold value, and definite user side region.
Further, described base station is provided with the user side location message according to the parameter of determining; Described location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime.
Further, described base station was provided with the cooperation point selection strategy of zones of different before determining the cooperation point selection strategy; For the sub-district inner region, select the highest static cooperation point of spectrum efficiency; For the zone, minizone, adopt dynamical fashion, at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, then selecting the higher cooperation point of spectrum efficiency, is less cooperation point of disturbance regime and the less cooperation point of base station load secondly.
Cooperation point choice device in a kind of heterogeneous network, it comprises the affirmation module, module and determination module is set;
Described affirmation module is confirmed user side region and location message parameter;
The described module that is provided with is provided with the location message parameter threshold;
Described determination module contrast location message measured value of parameters and location message parameter threshold are determined the cooperation point selection strategy; And determine cooperation point according to the cooperation point selection strategy.
Further, described device also comprises the selection module, and it is used for described cooperation point according to other cooperation points of measurement Dynamic Selection to different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
Parameter when further, described affirmation module is confirmed area dividing is also determined the area dividing threshold value according to parameter.
Further, described base station is provided with the user side location message according to the parameter of determining; Described location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime.
Further, described base station was provided with the cooperation point selection strategy of zones of different before determining the cooperation point selection strategy; For the sub-district inner region, select the highest static cooperation point of spectrum efficiency; For the zone, minizone, adopt dynamical fashion, at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, then selecting the higher cooperation point of spectrum efficiency, is less cooperation point of disturbance regime and the less cooperation point of base station load secondly.
The invention has the beneficial effects as follows: compared with prior art, technical solution of the present invention is by effective division of overlay area, limited qualification has been carried out in the zone that needs CoMP, need be between all cooperation points when significantly having reduced CoMP the expense of mutual information, cooperation point dynamically/static select unite use, further reduced overhead, simultaneously, dissimilar cooperation points are provided with collaborative controller in the heterogeneous network, have effectively reduced in cooperation point and need reselect the expense that needs mutual information when switching on relevant cooperation point.
Description of drawings
Fig. 1 is a cooperation point system of selection schematic flow sheet in the embodiment of the invention heterogeneous network;
Fig. 2 is that cooperation point selects to form schematic diagram in the embodiment of the invention heterogeneous network.
Embodiment
Main thought of the present invention is:.
Coordinate multipoint transmission/reception by according to the user side location message overlay area being divided the base station, for example, is divided into zone, minizone, sub-district inner region down.Location message according to service quality (Quality of Service, QoS), long-term or short-term spectrum efficient, base station load, disturbance regime etc. determine.
The base station is that different cooperation point selection strategies is selected in different zones, for the sub-district inner region, because the presence of intercell interference situation is less, service quality is better, therefore, unless specific demand is arranged, for example, the base station load is heavier, high spectrum efficiency, the user side performance requirement of needs increase substantially these situations, otherwise, does not adopt coordinate multipoint transmission/reception, if but adopt the CoMP technology, so, should select the highest cooperation point of spectrum efficiency, and be static, that is, do not change after the selection.
For the zone, minizone, because in heterogeneous network, the transmitting power of dissimilar base stations, Femto sub-district, Home eNodeB etc., performance etc. have very big difference, therefore, when selecting cooperation point, to consider the compromise of user side performance requirement, spectrum efficiency, base station load, disturbance regime etc.For example, specifically can adopt following method: at first select to reach the cooperation point of user side top performance,, select the higher cooperation point of spectrum efficiency so if the cooperation point number does not reach requirement; Secondly be less cooperation point of disturbance regime and the less cooperation point of base station load, simultaneously, adopt dynamic mode, promptly select the back can change dynamically according to user side and cooperation point situation, and, consider the characteristic of heterogeneous network in dissimilar cooperation points, collaborative controller to be set, according to measurement Dynamic Selection cooperation point, and notify other cooperation point and user side selection and the switching of finishing cooperation point to different cooperation points and user side performance.Effective division by the overlay area, limited qualification has been carried out in the zone that needs CoMP, need be between all cooperation points when significantly having reduced CoMP the expense of mutual information, cooperation point dynamically/static select unite use, further reduced overhead, simultaneously, dissimilar cooperation points are provided with collaborative controller in the heterogeneous network, have effectively reduced in cooperation point and need reselect the expense that needs mutual information when switching on relevant cooperation point.
Below in conjunction with the drawings and specific embodiments technical solution of the present invention is described in further detail.
Please refer to shown in Figure 1ly, is cooperation point system of selection schematic flow sheet in the embodiment of the invention heterogeneous network, and it comprises the steps:
S101: the parameter when area dividing is determined in the base station;
Parameter when area dividing is determined in the base station comprises parameters such as interference measure, path loss.
S102: the area dividing threshold value is determined according to parameter in the base station;
S103: user side is measured the area dividing parameter that the base station is determined, and reporting base station;
S104: base station measurement of comparison value and area dividing threshold value, and definite user side region;
S105: the base station is provided with the user side location message according to the parameter of determining;
The base station is provided with the user side location message according to the parameter of determining, location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime etc.
S106: user side is measured the location message parameter that the base station is determined, and reporting base station;
S107: the base station is provided with the location message parameter threshold;
S108: the base station is provided with the cooperation point selection strategy of zones of different;
The base station is provided with the cooperation point selection strategy of zones of different, for the sub-district inner region, because the presence of intercell interference situation is less, service quality is better, therefore, unless specific demand is arranged, for example, the base station load is heavier, high spectrum efficiency, the user side performance requirement of needs increase substantially these situations, otherwise, does not adopt coordinate multipoint transmission/reception, if but adopt the CoMP technology, so, should select the highest cooperation point of spectrum efficiency, and be static, that is, do not change after the selection.
For the zone, minizone, because in heterogeneous network, dissimilar base stations, the Femto sub-district, the transmitting power of Home eNodeB etc., performances etc. have very big difference, therefore, when selecting cooperation point, to consider the user side performance requirement, spectrum efficiency, the base station load, the compromise of disturbance regime etc., at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, select the higher cooperation point of spectrum efficiency so, secondly be less cooperation point of disturbance regime and the less cooperation point of base station load, simultaneously, adopt dynamic mode, promptly select the back can change dynamically according to user side and cooperation point situation.
S109: base station contrast location message measured value of parameters and location message parameter threshold, determine the cooperation point selection strategy;
S110: cooperation point is determined according to the cooperation point selection strategy in the base station, and notifies all cooperation points and user side;
S111: in the dissimilar cooperation points collaborative controller is set;
Consider the characteristic of heterogeneous network, in dissimilar cooperation points, collaborative controller is set.
S112: cooperation point is according to the measurement Dynamic Selection cooperation point of different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
According to measurement Dynamic Selection cooperation point, and notify other cooperation point and user side selection and the switching of finishing cooperation point to different cooperation points and user side performance.
Please refer to shown in Figure 2ly, is that the cooperation point choice device is formed schematic diagram in the embodiment of the invention heterogeneous network, and it comprises confirms that module, threshold value divide module, reporting module, comparison module, module, determination module and selection module are set.
Parameter when said affirmation module is confirmed area dividing.Parameter when area dividing is determined in the base station comprises parameters such as interference measure, path loss.
Described threshold value is divided module and is determined the area dividing threshold value according to parameter.
Described reporting module is measured the area dividing reporting parameters base station that the base station is determined with user side, and user side is measured the location message reporting parameters base station that the base station is determined.
Described comparison module measurement of comparison value and area dividing threshold value, and definite user side region.
The described module that is provided with is provided with in the cooperation point selection strategy of user side location message, location message parameter threshold, zones of different and the dissimilar cooperation point according to the parameter of determining collaborative controller is set.The base station is provided with the user side location message according to the parameter of determining, location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime etc.The base station is provided with the cooperation point selection strategy of zones of different, for the zone, minizone, because in heterogeneous network, dissimilar base stations, the Femto sub-district, the transmitting power of Home eNodeB etc., performances etc. have very big difference, therefore, when selecting cooperation point, to consider the user side performance requirement, spectrum efficiency, the base station load, the compromise of disturbance regime etc., at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, select the higher cooperation point of spectrum efficiency so, secondly be less cooperation point of disturbance regime and the less cooperation point of base station load, simultaneously, adopt dynamic mode, promptly select the back can change dynamically according to user side and cooperation point situation.
Described determination module contrast location message measured value of parameters and location message parameter threshold are determined the cooperation point selection strategy.Cooperation point is determined according to the cooperation point selection strategy in the base station, and notifies all cooperation points and user side.
Described selection module is according to the measurement Dynamic Selection cooperation point to different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
Technical solution of the present invention is by effective division of overlay area, limited qualification has been carried out in the zone that needs CoMP, need be between all cooperation points when significantly having reduced CoMP the expense of mutual information, cooperation point dynamically/static select unite use, further reduced overhead, simultaneously, dissimilar cooperation points are provided with collaborative controller in the heterogeneous network, have effectively reduced in cooperation point and need reselect the expense that needs mutual information when switching on relevant cooperation point.
Described above only is preferred embodiments of the present invention; certainly can not limit interest field of the present invention with this; therefore; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. cooperation point system of selection in the heterogeneous network is characterized in that described method comprises:
User side region and location message parameter are determined in the base station, and the location message parameter threshold is set;
Base station contrast location message measured value of parameters and location message parameter threshold are determined the cooperation point selection strategy;
Cooperation point is determined according to the cooperation point selection strategy in the base station.
2. the method for claim 1 is characterized in that, described cooperation point is according to other cooperation points of measurement Dynamic Selection to different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
3. the method for claim 1 is characterized in that, the parameter when area dividing is determined in described base station is also determined the area dividing threshold value according to parameter; Described user side is measured the definite location message parameter of determining the base station of area dividing parameter and base station, and reporting base station; Described base station measurement of comparison value and area dividing threshold value, and definite user side region.
4. method as claimed in claim 3 is characterized in that, described base station is provided with the user side location message according to the parameter of determining; Described location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime.
5. the method for claim 1 is characterized in that, described base station was provided with the cooperation point selection strategy of zones of different before determining the cooperation point selection strategy; For the sub-district inner region, select the highest static cooperation point of spectrum efficiency; For the zone, minizone, adopt dynamical fashion, at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, then selecting the higher cooperation point of spectrum efficiency, is less cooperation point of disturbance regime and the less cooperation point of base station load secondly.
6. cooperation point choice device in the heterogeneous network, it comprises confirms module, module and determination module is set;
Described affirmation module is confirmed user side region and location message parameter;
The described module that is provided with is provided with the location message parameter threshold;
Described determination module contrast location message measured value of parameters and location message parameter threshold are determined the cooperation point selection strategy; And determine cooperation point according to the cooperation point selection strategy.
7. device as claimed in claim 6, it is characterized in that, described device also comprises the selection module, and it is used for described cooperation point according to other cooperation points of measurement Dynamic Selection to different cooperation points and user side performance, and notifies other cooperation point and user side selection and the switching of finishing cooperation point.
8. device as claimed in claim 6 is characterized in that, the parameter when described affirmation module is confirmed area dividing is also determined the area dividing threshold value according to parameter.
9. device as claimed in claim 8 is characterized in that, described base station is provided with the user side location message according to the parameter of determining; Described location message is determined according to service quality, long-term or short-term spectrum efficient, base station load, disturbance regime.
10. as each described device of claim 6-9, it is characterized in that described base station was provided with the cooperation point selection strategy of zones of different before determining the cooperation point selection strategy; For the sub-district inner region, select the highest static cooperation point of spectrum efficiency; For the zone, minizone, adopt dynamical fashion, at first select to reach the cooperation point of user side top performance, if the cooperation point number does not reach requirement, then selecting the higher cooperation point of spectrum efficiency, is less cooperation point of disturbance regime and the less cooperation point of base station load secondly.
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| WO2012022268A1 (en) * | 2010-08-20 | 2012-02-23 | 中兴通讯股份有限公司 | Method and device for selection of collaborative point |
| CN103281706A (en) * | 2013-06-04 | 2013-09-04 | 北京邮电大学 | Two-double dynamic CoMP communication cooperation cluster partition method |
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Cited By (3)
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| WO2012022268A1 (en) * | 2010-08-20 | 2012-02-23 | 中兴通讯股份有限公司 | Method and device for selection of collaborative point |
| CN103281706A (en) * | 2013-06-04 | 2013-09-04 | 北京邮电大学 | Two-double dynamic CoMP communication cooperation cluster partition method |
| CN103281706B (en) * | 2013-06-04 | 2016-06-01 | 北京邮电大学 | The dynamic CoMP communication cooperation cluster partition method of a kind of bilayer |
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Application publication date: 20110420 |