CN103249152A - Allocation method and device of adjacent cell interference thresholds - Google Patents
Allocation method and device of adjacent cell interference thresholds Download PDFInfo
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- CN103249152A CN103249152A CN2012100285789A CN201210028578A CN103249152A CN 103249152 A CN103249152 A CN 103249152A CN 2012100285789 A CN2012100285789 A CN 2012100285789A CN 201210028578 A CN201210028578 A CN 201210028578A CN 103249152 A CN103249152 A CN 103249152A
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Abstract
The invention provides an allocation method and device of adjacent cell interference thresholds. The method includes the steps as follows: when entering the adjusting period of an nth current preset interference threshold, an RNC (Radio Network Controller) determines an adjacent cell interference threshold of each cell in the period according to the predicted sendable data volume R<n,i> of each cell managed by the RNC in the period; if the new adjacent cell interference thresholds of the cells are different from those used for scheduling by the cells at present, the RNC updates the adjacent cell interference thresholds used for scheduling by the cells at present to be the new adjacent cell interference thresholds of the cells and informs the cells of the new adjacent cell interference thresholds. With the adoption of the allocation method and device, the increasing of the whole throughput of a system can be effectively guaranteed.
Description
Technical field
The present invention relates to the radio resource management techniques of mobile communication system, particularly relate to a kind of distribution method and device of adjacent area interference thresholding.
Background technology
Existing high speed uplink packet inserts in (HSUPA) system, radio network controller (RNC) all can distribute an adjacent area interference thresholding (RoT thresholding) for each HSUPA residential quarter, scheduler is to the user's assigns authorized in this residential quarter the time, after guaranteeing that this community user is according to the authorization power emission, the interference lifting that neighbor cell is caused can not surpass this RoT thresholding.
Common RoT thresholding distribution method is that identical fixedly RoT threshold value is all distributed in each residential quarter.But each residential quarter its local area user and adjacent area user situation are all different in real network, if the RoT threshold value of distributing is less than normal, so just can not well utilize interface-free resources, upstream rate is restricted, if the value of distributing is bigger than normal, can make the uplink interference level lifting of whole system again, influence overall rate.
This shows that therefore existing RoT thresholding distribution method can not can influence the up total throughout of whole system at the concrete condition configuration suitable R OT thresholding of every residential quarter.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of distribution method and device of adjacent area interference thresholding, can improve the up total throughout of system.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of distribution method of adjacent area interference thresholding, this method may further comprise the steps:
A, when entering the default interference threshold adjustment cycle of current n, radio network controller can send data volume R according to the expectation of each residential quarter in this cycle of its management
N, i, determine the new adjacent area interference thresholding of described each residential quarter in this cycle;
B, for each described residential quarter, if the described new adjacent area interference thresholding of this residential quarter is different with the current adjacent area interference thresholding for scheduling in this residential quarter, then described RNC is updated to the described new adjacent area interference thresholding of this residential quarter with the current adjacent area interference thresholding for scheduling in this residential quarter, and is notified to this residential quarter.
A kind of distributor of adjacent area interference thresholding, described device is located in the radio network controller (RNC), and this device comprises:
The interference threshold computing unit is used for when entering current n default interference threshold adjustment cycle, can send data volume R according to the expectation of each residential quarter in this cycle of its management
N, i, determine the new adjacent area interference thresholding of described each residential quarter in this cycle;
The interference threshold dispensing unit, be used for for each described residential quarter, described new adjacent area interference thresholding and this residential quarter in this residential quarter are current for the adjacent area interference thresholding of dispatching not simultaneously, the current adjacent area interference thresholding for scheduling in this residential quarter is updated to the described new adjacent area interference thresholding of this residential quarter, and is notified to this residential quarter.
In sum, distribution method and the device of the adjacent area interference thresholding that the present invention proposes can send the dynamic-configuration that data volume is carried out adjacent area interference thresholding by the expectation according to each residential quarter periodically, can effectively guarantee the lifting of the entire throughput of system.
Description of drawings
Fig. 1 is the method flow schematic diagram of the embodiment of the invention one;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: the RoT thresholding is used as a kind of resource that RNC can give each cell allocation, and RNC is periodically to each the cell allocation RoT thresholding under it, thereby reaches the purpose of elevator system entire throughput.
Fig. 1 is the method flow schematic diagram of the embodiment of the invention one, and as shown in Figure 1, this method mainly comprises:
Preferably, described RNC obtains the expectation of described each residential quarter in this cycle and can send data volume R
N, iMethod be:
For each described residential quarter, the base station at this place, residential quarter is at n-1 described interference threshold adjustment cycle, total enhancing dedicated channel (EDCH) buffer status TEBS, local area adjacent area path loss SNPL and UE power headroom UPH according to user in the maximum adjacent area interference thresholding of this default residential quarter and this residential quarter calculate this residential quarter and can send data volume R in the expectation of n described interference threshold adjustment cycle
N, i, and report described RNC.
Here, specifically how according to TEBS, SNPL and the UPH of user in the maximum adjacent area interference thresholding of this default residential quarter and this residential quarter, calculate described R
N, i, can adopt existing method to realize, do not repeat them here.
Preferably, can adopt following two kinds of methods to determine the new adjacent area interference thresholding of described each residential quarter in this cycle:
First method is specifically as follows:
Can send data volume R for described expectation in this cycle
N, iBe zero residential quarter, described RNC determines that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle;
Can send data volume R for described expectation in this cycle
N, iThe residential quarter of non-zero, described RNC is according to described R
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is the adjacent area interference thresholding of described minimum at the new adjacent area interference thresholding in this cycle.
Second method is specifically as follows:
At first, when entering the described interference threshold adjustment cycle of current n, for each described residential quarter, described RNC can be according to the actual data volume Q that sends in n-1 the described interference threshold adjustment cycle
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i
Particularly, can be according to r
N, i=(1-a) * r
N-1, i+ a*Q
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i, wherein, described a is default filtering factor, concrete method to set up does not repeat them here r with the filtering factor method to set up in the existing system (for example, using the method for filtering to be adopted during undesired component in the erasure signal during signal is handled)
N-1, iAverage transmission data volume for this residential quarter of calculating at n-1 described interference threshold adjustment cycle.
Then, RNC can be based on the current average transmission data volume r in described each residential quarter
N, i, determine described each residential quarter at the new adjacent area interference thresholding in this cycle, concrete grammar can for:
For each described residential quarter, described RNC is according to P
N, i=R
N, i/ r
N, i, calculate the dispatching priority P of this residential quarter in this cycle
N, i
For described dispatching priority P in this cycle
N, iBe zero residential quarter, described RNC determines that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle;
For described dispatching priority P in this cycle
N, iThe residential quarter of non-zero, described RNC is according to described P
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle.
Above-mentioned for determining the two kind methods of described each residential quarter at the new adjacent area interference thresholding in this cycle, adopt first method can make the uplink throughput maximization of whole RNC; Adopt second method, then can between RNC throughput and each cell throughout fairness, reach balance.
In the technique scheme, the adjacent area interference thresholding of described minimum and maximum adjacent area interference thresholding, all can be by those skilled in the art according to acceptable interference index and actual channel quality situation in the practical application, by emulation suitable value is set, in addition, described adjacent area interference thresholding and maximum adjacent area interference thresholding can also dynamically update, and when initial, the described adjacent area interference thresholding of each residential quarter (or maximum adjacent area interference thresholding) can be the same or different.
By such scheme, as can be seen, the present invention can effectively guarantee the lifting of the entire throughput of system by periodically carry out the dynamic-configuration of adjacent area interference thresholding according to the current actual amount of data in each residential quarter.
Fig. 2 is the apparatus structure schematic diagram corresponding with the method for above-described embodiment one, and described device is located in the radio network controller (RNC), and this device comprises:
The interference threshold computing unit is used for when entering current n default interference threshold adjustment cycle, can send data volume R according to the expectation of each residential quarter in this cycle of its management
N, i, determine the new adjacent area interference thresholding of described each residential quarter in this cycle;
The interference threshold dispensing unit, be used for for each described residential quarter, described new adjacent area interference thresholding and this residential quarter in this residential quarter are current for the adjacent area interference thresholding of dispatching not simultaneously, the current adjacent area interference thresholding for scheduling in this residential quarter is updated to the described new adjacent area interference thresholding of this residential quarter, and is notified to this residential quarter.
Preferably, described interference threshold computing unit is further used for obtaining the expectation of described each residential quarter in this cycle and can sends data volume R
N, i, wherein, obtain described R
N, iFor: for each described residential quarter, the base station node B at this place, residential quarter is at n-1 described interference threshold adjustment cycle, TEBS, SNPL and UPH according to user in the maximum adjacent area interference thresholding of this default residential quarter and this residential quarter calculate this residential quarter and can send data volume R in the expectation of n described interference threshold adjustment cycle
N, i, and report described RNC.
Preferably, described interference threshold computing unit is further used for can sending data volume R for described expectation in this cycle
N, iBe zero residential quarter, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle; Can send data volume R for described expectation in this cycle
N, iThe residential quarter of non-zero is according to described R
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is the adjacent area interference thresholding of described minimum at the new adjacent area interference thresholding in this cycle.
Preferably, described interference threshold computing unit is further used for when entering the described interference threshold adjustment cycle of current n, and for each described residential quarter, described RNC is according to the actual data volume Q that sends in n-1 the described interference threshold adjustment cycle
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, iFor each described residential quarter, according to P
N, i=R
N, i/ r
N, i, calculate the dispatching priority P of this residential quarter in this cycle
N, iFor described dispatching priority P in this cycle
N, iBe zero residential quarter, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle; For described dispatching priority P in this cycle
N, iThe residential quarter of non-zero is according to described P
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle.
Preferably, described interference threshold computing unit is further used for according to r
N, i=(1-a) * r
N-1, i+ a*Q
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i, wherein, described a is default filtering factor, r
N-1, iAverage transmission data volume for this residential quarter of calculating at n-1 described interference threshold adjustment cycle.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the distribution method of an adjacent area interference thresholding is characterized in that, this method may further comprise the steps:
A, when entering the default interference threshold adjustment cycle of current n, radio network controller (RNC) can send data volume R according to the expectation of each residential quarter in this cycle of its management
N, i, determine the new adjacent area interference thresholding of described each residential quarter in this cycle;
B, for each described residential quarter, if the described new adjacent area interference thresholding of this residential quarter is different with the current adjacent area interference thresholding for scheduling in this residential quarter, then described RNC is updated to the described new adjacent area interference thresholding of this residential quarter with the current adjacent area interference thresholding for scheduling in this residential quarter, and is notified to this residential quarter.
2. method according to claim 1 is characterized in that, described RNC obtains the expectation of described each residential quarter in this cycle can send data volume R
N, iMethod be:
For each described residential quarter, the base station node B at this place, residential quarter is at n-1 described interference threshold adjustment cycle, total enhancing dedicated channel buffer status TEBS, local area adjacent area path loss SNPL and UE power headroom UPH according to user in the maximum adjacent area interference thresholding of this default residential quarter and this residential quarter calculate this residential quarter and can send data volume R in the expectation of n described interference threshold adjustment cycle
N, i, and report described RNC.
3. method according to claim 1 and 2 is characterized in that, determines described in the step a that the new adjacent area interference thresholding of described each residential quarter in this cycle is:
Can send data volume R for described expectation in this cycle
N, iBe zero residential quarter, described RNC determines that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle;
Can send data volume R for described expectation in this cycle
N, iThe residential quarter of non-zero, described RNC is according to described R
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is the adjacent area interference thresholding of described minimum at the new adjacent area interference thresholding in this cycle.
4. method according to claim 1 and 2 is characterized in that, described method further comprises:
When entering the described interference threshold adjustment cycle of current n, for each described residential quarter, described RNC is according to the actual data volume Q that sends in n-1 the described interference threshold adjustment cycle
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i
Determine described in the step a that the new adjacent area interference thresholding of described each residential quarter in this cycle is:
For each described residential quarter, described RNC is according to P
N, i=R
N, i/ r
N, i, calculate the dispatching priority P of this residential quarter in this cycle
N, i
For described dispatching priority P in this cycle
N, iBe zero residential quarter, described RNC determines that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle;
For described dispatching priority P in this cycle
N, iThe residential quarter of non-zero, described RNC is according to described P
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle.
5. method according to claim 4 is characterized in that, according to r
N, i=(1-a) * r
N-1, i+ a*Q
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i, wherein, described a is default filtering factor, r
N-1, iAverage transmission data volume for this residential quarter of calculating at n-1 described interference threshold adjustment cycle.
6. the distributor of an adjacent area interference thresholding is characterized in that, described device is located in the radio network controller (RNC), and this device comprises:
The interference threshold computing unit is used for when entering current n default interference threshold adjustment cycle, can send data volume R according to the expectation of each residential quarter in this cycle of its management
N, i, determine the new adjacent area interference thresholding of described each residential quarter in this cycle;
The interference threshold dispensing unit, be used for for each described residential quarter, described new adjacent area interference thresholding and this residential quarter in this residential quarter are current for the adjacent area interference thresholding of dispatching not simultaneously, the current adjacent area interference thresholding for scheduling in this residential quarter is updated to the described new adjacent area interference thresholding of this residential quarter, and is notified to this residential quarter.
7. device according to claim 6 is characterized in that, described interference threshold computing unit is further used for obtaining the expectation of described each residential quarter in this cycle and can sends data volume R
N, i, wherein, obtain described R
N, iFor: for each described residential quarter, the base station node B at this place, residential quarter is at n-1 described interference threshold adjustment cycle, total enhancing dedicated channel buffer status TEBS, local area adjacent area path loss SNPL and UE power headroom UPH according to user in the maximum adjacent area interference thresholding of this default residential quarter and this residential quarter calculate this residential quarter and can send data volume R in the expectation of n described interference threshold adjustment cycle
N, i, and report described RNC.
8. according to claim 6 or 7 described devices, it is characterized in that described interference threshold computing unit is further used for can sending data volume R for described expectation in this cycle
N, iBe zero residential quarter, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle; Can send data volume R for described expectation in this cycle
N, iThe residential quarter of non-zero is according to described R
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is the adjacent area interference thresholding of described minimum at the new adjacent area interference thresholding in this cycle.
9. according to claim 6 or 7 described devices, it is characterized in that, described interference threshold computing unit, be further used for when entering the described interference threshold adjustment cycle of current n, for each described residential quarter, described RNC is according to the actual data volume Q that sends in n-1 the described interference threshold adjustment cycle
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, iFor each described residential quarter, according to P
N, i=R
N, i/ r
N, i, calculate the dispatching priority P of this residential quarter in this cycle
N, iFor described dispatching priority P in this cycle
N, iBe zero residential quarter, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle; For described dispatching priority P in this cycle
N, iThe residential quarter of non-zero is according to described P
N, iDescending sort, and according to each the adjacent cells of cells interference threshold after the preset strategy definite described ordering successively, described strategy is: if this residential quarter is arranged in the front of its all adjacent residential quarters, determine that then this residential quarter is default maximum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle, otherwise, determine that this residential quarter is default minimum adjacent area interference thresholding at the new adjacent area interference thresholding in this cycle.
10. device according to claim 9 is characterized in that, described interference threshold computing unit is further used for according to r
N, i=(1-a) * r
N-1, i+ a*Q
N-1, i, determine the average transmission data volume r that described each residential quarter is current
N, i, wherein, described a is default filtering factor, r
N-1, iAverage transmission data volume for this residential quarter of calculating at n-1 described interference threshold adjustment cycle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028578.9A CN103249152B (en) | 2012-02-09 | 2012-02-09 | A kind of distribution method of adjacent cell interference threshold and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028578.9A CN103249152B (en) | 2012-02-09 | 2012-02-09 | A kind of distribution method of adjacent cell interference threshold and device |
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| CN103249152A true CN103249152A (en) | 2013-08-14 |
| CN103249152B CN103249152B (en) | 2016-01-20 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2359452A (en) * | 2000-02-17 | 2001-08-22 | Motorola Inc | Allocation of channels in a pico-cell system |
| CN101035353A (en) * | 2006-03-06 | 2007-09-12 | 西门子（中国）有限公司 | Radio resource multiplexing method and allocation method in the radio mobile communication system |
| WO2009060303A2 (en) * | 2007-11-09 | 2009-05-14 | Nortel Networks Limited | UPLINK POWER CONTROL WITH INTERFERENCE-OVER-THERMAL (LoT) LOAD CONTROL |
| CN101521942A (en) * | 2008-02-26 | 2009-09-02 | 鼎桥通信技术有限公司 | Method for dispatching high-speed uplink package access system |
-
2012
- 2012-02-09 CN CN201210028578.9A patent/CN103249152B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2359452A (en) * | 2000-02-17 | 2001-08-22 | Motorola Inc | Allocation of channels in a pico-cell system |
| CN101035353A (en) * | 2006-03-06 | 2007-09-12 | 西门子（中国）有限公司 | Radio resource multiplexing method and allocation method in the radio mobile communication system |
| WO2009060303A2 (en) * | 2007-11-09 | 2009-05-14 | Nortel Networks Limited | UPLINK POWER CONTROL WITH INTERFERENCE-OVER-THERMAL (LoT) LOAD CONTROL |
| CN101521942A (en) * | 2008-02-26 | 2009-09-02 | 鼎桥通信技术有限公司 | Method for dispatching high-speed uplink package access system |
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