CN103249152B - A kind of distribution method of adjacent cell interference threshold and device - Google Patents
A kind of distribution method of adjacent cell interference threshold and device Download PDFInfo
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- CN103249152B CN103249152B CN201210028578.9A CN201210028578A CN103249152B CN 103249152 B CN103249152 B CN 103249152B CN 201210028578 A CN201210028578 A CN 201210028578A CN 103249152 B CN103249152 B CN 103249152B
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Abstract
The invention provides a kind of distribution method and device of adjacent cell interference threshold, wherein method comprises: enter current n-th preset interference threshold adjustment cycle time, radio network controller (RNC) can send data volume R according to its each community managed in the expectation in this cycle
n, i, determine the new adjacent cell interference threshold of described each community in this cycle; For each described community, if the described new adjacent cell interference threshold of this community is different from the current adjacent cell interference threshold for dispatching in this community, then current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community by described RNC, and informs this community.Adopt the present invention, effectively can guarantee the lifting of the entire throughput of system.
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 cell interference threshold.
Background technology
In existing high speed uplink packet access (HSUPA) system, radio network controller (RNC) all can distribute an adjacent cell interference threshold (RoT thresholding) to each HSUPA community, scheduler is when distributing mandate to the user in this community, after ensureing that this community user is launched according to authorization power, this RoT thresholding can not be exceeded to the interference lifting that neighbor cell is caused.
Identical fixing RoT threshold value is all distributed in common RoT thresholding distribution method Shi Ge community.But real network Zhong Ge community its local area user and adjacent area user situation all different, if the RoT threshold value of distributing is less than normal, so just well can not utilize interface-free resources, upstream rate is restricted, if the value of distributing is bigger than normal, the uplink interference level lifting of whole system can be made again, affect overall rate.
As can be seen here, existing RoT thresholding distribution method can not configure suitable ROT thresholding for the concrete condition of every community, therefore can affect the up total throughout of whole system.
Summary of the invention
In view of this, main purpose of the present invention is the distribution method and the device that provide a kind of adjacent cell interference threshold, can improve the up total throughout of system.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A distribution method for adjacent cell interference threshold, the method comprises the following steps:
A, enter current n-th preset interference threshold adjustment cycle time, radio network controller can send data volume R according to its each community managed in the expectation in this cycle
n, i, determine the new adjacent cell interference threshold of described each community in this cycle;
B, for each described community, if the described new adjacent cell interference threshold of this community is different from the current adjacent cell interference threshold for dispatching in this community, then current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community by described RNC, and informs this community.
A distributor for adjacent cell interference threshold, described device is located in radio network controller (RNC), and this device comprises:
Interference threshold computing unit, for enter current n-th preset interference threshold adjustment cycle time, according to its management each community can send data volume R in the expectation in this cycle
n, i, determine the new adjacent cell interference threshold of described each community in this cycle;
Interference threshold dispensing unit, for for each described community, when described new adjacent cell interference threshold in this community is different from the current adjacent cell interference threshold for dispatching in this community, current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community, and informs this community.
In sum, the distribution method of the adjacent cell interference threshold that the present invention proposes and device, can send by the expectation periodically according to each community the dynamic-configuration that data volume carries out adjacent cell interference threshold, effectively can guarantee the lifting of the entire throughput of system.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention one;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the present invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, 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: RoT thresholding is used as RNC can to a kind of resource of each cell allocation, and RNC periodically to each cell allocation RoT thresholding under it, thus reaches the object of elevator system entire throughput.
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention one, and as shown in Figure 1, the method mainly comprises:
Step 101, enter current n-th preset interference threshold adjustment cycle time, radio network controller (RNC) can send data volume R according to its each community managed in the expectation in this cycle
n, i, determine the new adjacent cell interference threshold of described each community in this cycle.
Preferably, described RNC obtains described each community and can send data volume R in the expectation in this cycle
n, imethod be:
For each described community, the base station at this place, community is at (n-1)th described interference threshold adjustment cycle, according to the maximum adjacent cell interference threshold of this community preset and enhancing dedicated channel (EDCH) buffer status TEBS, the local area adjacent area path loss SNPL of the total of this intra-cell users and UE power headroom UPH, the expectation calculating this community interference threshold adjustment cycle described in n-th can send data volume R
n, i, and report described RNC.
Here, specifically how according to the maximum adjacent cell interference threshold of this community preset and TEBS, SNPL and UPH of this intra-cell users, described R is calculated
n, i, existing method can be adopted to realize, not repeat them here.
Preferably, following two kinds of methods can be adopted to determine the new adjacent cell interference threshold of described each community in this cycle:
First method is specifically as follows:
Data volume R can be sent for the described expectation in this cycle
n, ibe the community of zero, described RNC determines that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle;
Data volume R can be sent for the described expectation in this cycle
n, ithe community of non-zero, described RNC is according to described R
n, idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is described minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle.
Second method is specifically as follows:
First, when entering interference threshold adjustment cycle described in current n-th, for each described community, described RNC can according to the data volume Q sent actual in (n-1)th described interference threshold adjustment cycle
n-1, i, determine the average transmission data volume r that described each community is current
n, i.
Particularly, can 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 community is current
n, i, wherein, described a is default filtering factor, and concrete method to set up, with the filtering factor method to set up (such as, using filtering with the method adopted during undesired component in erasure signal in signal transacting) in existing system, does not repeat them here, r
n-1, ifor the average transmission data volume of this community calculated at (n-1)th described interference threshold adjustment cycle.
Then, RNC can based on the current average transmission data volume r in described each community
n, i, determine the new adjacent cell interference threshold of described each community in this cycle, concrete grammar can be:
For each described community, described RNC is according to P
n, i=R
n, i/ r
n, i, calculate the dispatching priority P of this community in this cycle
n, i;
For the described dispatching priority P in this cycle
n, ibe the community of zero, described RNC determines that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle;
For the described dispatching priority P in this cycle
n, ithe community of non-zero, described RNC is according to described P
n, idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle.
Above-mentioned for determining that described each community is in two kinds of methods of the new adjacent cell interference threshold in this cycle, adopt first method that the uplink throughput of whole RNC can be made to maximize; Adopt second method, then can reach balance between RNC throughput and each cell throughout fairness.
Step 102, for each described community, if the described new adjacent cell interference threshold of this community is different from the current adjacent cell interference threshold for dispatching in this community, then current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community by described RNC, and informs this community.
In technique scheme, described minimum adjacent cell interference threshold and maximum adjacent cell interference threshold, all can by those skilled in the art according to interference index acceptable in practical application and actual channel quality situation, by emulation, suitable value is set, in addition, described adjacent cell interference threshold and maximum adjacent cell interference threshold can also dynamically update, and time initial, the described adjacent cell interference threshold (or maximum adjacent cell interference threshold) of each community can be the same or different.
By such scheme, can find out, the present invention carries out the dynamic-configuration of adjacent cell interference threshold by the periodic actual amount of data current according to each community, effectively can guarantee the lifting of the entire throughput of system.
Fig. 2 is the apparatus structure schematic diagram corresponding with the method for above-described embodiment one, and described device is located in radio network controller (RNC), and this device comprises:
Interference threshold computing unit, for enter current n-th preset interference threshold adjustment cycle time, according to its management each community can send data volume R in the expectation in this cycle
n, i, determine the new adjacent cell interference threshold of described each community in this cycle;
Interference threshold dispensing unit, for for each described community, when described new adjacent cell interference threshold in this community is different from the current adjacent cell interference threshold for dispatching in this community, current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community, and informs this community.
Preferably, described interference threshold computing unit, is further used for obtaining described each community and can sends data volume R in the expectation in this cycle
n, i, wherein, obtain described R
n, ifor: for each described community, the base station NodeB at this place, community is at (n-1)th described interference threshold adjustment cycle, according to the maximum adjacent cell interference threshold of this community preset and TEBS, SNPL and UPH of this intra-cell users, the expectation calculating this community interference threshold adjustment cycle described in n-th can send data volume R
n, i, and report described RNC.
Preferably, described interference threshold computing unit, is further used for can sending data volume R for the described expectation in this cycle
n, ibe the community of zero, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle; Data volume R can be sent for the described expectation in this cycle
n, ithe community of non-zero, according to described R
n, idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is described minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle.
Preferably, described interference threshold computing unit, is further used for when entering interference threshold adjustment cycle described in current n-th, and for each described community, described RNC is according to the data volume Q sent actual in (n-1)th described interference threshold adjustment cycle
n-1, i, determine the average transmission data volume r that described each community is current
n, i; For each described community, according to P
n, i=R
n, i/ r
n, i, calculate the dispatching priority P of this community in this cycle
n, i; For the described dispatching priority P in this cycle
n, ibe the community of zero, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle; For the described dispatching priority P in this cycle
n, ithe community of non-zero, according to described P
n, idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold 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 community is current
n, i, wherein, described a is default filtering factor, r
n-1, ifor the average transmission data volume of this community calculated at (n-1)th described interference threshold adjustment cycle.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a distribution method for adjacent cell interference threshold, is characterized in that, the method comprises the following steps:
A, enter current n-th preset interference threshold adjustment cycle time, radio network controller (RNC) can send data volume R according to its each community managed in the expectation in this cycle
n,i, determine the new adjacent cell interference threshold of described each community in this cycle;
B, for each described community, if the described new adjacent cell interference threshold of this community is different from the current adjacent cell interference threshold for dispatching in this community, then current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community by described RNC, and informs this community.
2. method according to claim 1, is characterized in that, described RNC obtains described each community can send data volume R in the expectation in this cycle
n,imethod be:
For each described community, the base station at this place, community is at (n-1)th described interference threshold adjustment cycle, according to the maximum adjacent cell interference threshold of this community preset and enhancing dedicated channel buffer status TEBS, the local area adjacent area path loss SNPL of the total of this intra-cell users and UE power headroom UPH, the expectation calculating this community interference threshold adjustment cycle described in n-th can send data volume R
n,i, and report described RNC.
3. method according to claim 1 and 2, is characterized in that, determines that described each community at the new adjacent cell interference threshold in this cycle is described in step a:
Data volume R can be sent for the described expectation in this cycle
n,ibe the community of zero, described RNC determines that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle;
Data volume R can be sent for the described expectation in this cycle
n,ithe community of non-zero, described RNC is according to described R
n,idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is described minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle.
4. method according to claim 1 and 2, is characterized in that, described method comprises further:
When entering interference threshold adjustment cycle described in current n-th, for each described community, described RNC is according to the data volume Q sent actual in (n-1)th described interference threshold adjustment cycle
n-1, i, determine the average transmission data volume r that described each community is current
n,i;
Determine described in step a that described each community at the new adjacent cell interference threshold in this cycle is:
For each described community, described RNC is according to P
n,i=R
n,i/ r
n,i, calculate the dispatching priority P of this community in this cycle
n,i;
For the described dispatching priority P in this cycle
n,ibe the community of zero, described RNC determines that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle;
For the described dispatching priority P in this cycle
n,ithe community of non-zero, described RNC is according to described P
n,idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold 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 community is current
n,i, wherein, described a is default filtering factor, r
n-1, ifor the average transmission data volume of this community calculated at (n-1)th described interference threshold adjustment cycle.
6. a distributor for adjacent cell interference threshold, is characterized in that, described device is located in radio network controller (RNC), and this device comprises:
Interference threshold computing unit, for enter current n-th preset interference threshold adjustment cycle time, according to its management each community can send data volume R in the expectation in this cycle
n,i, determine the new adjacent cell interference threshold of described each community in this cycle;
Interference threshold dispensing unit, for for each described community, when described new adjacent cell interference threshold in this community is different from the current adjacent cell interference threshold for dispatching in this community, current for this community adjacent cell interference threshold for dispatching is updated to the described new adjacent cell interference threshold of this community, and informs this community.
7. device according to claim 6, is characterized in that, described interference threshold computing unit, is further used for obtaining described each community and can sends data volume R in the expectation in this cycle
n,i, wherein, obtain described R
n,ifor: for each described community, the base station NodeB at this place, community is at (n-1)th described interference threshold adjustment cycle, according to the maximum adjacent cell interference threshold of this community preset and enhancing dedicated channel buffer status TEBS, the local area adjacent area path loss SNPL of the total of this intra-cell users and UE power headroom UPH, the expectation calculating this community interference threshold adjustment cycle described in n-th can send data volume R
n,i, and report described RNC.
8. the device according to claim 6 or 7, is characterized in that, described interference threshold computing unit, is further used for can sending data volume R for the described expectation in this cycle
n,ibe the community of zero, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle; Data volume R can be sent for the described expectation in this cycle
n,ithe community of non-zero, according to described R
n,idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is described minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle.
9. the device according to claim 6 or 7, it is characterized in that, described interference threshold computing unit, be further used for when entering interference threshold adjustment cycle described in current n-th, for each described community, described RNC is according to the data volume Q sent actual in (n-1)th described interference threshold adjustment cycle
n-1, i, determine the average transmission data volume r that described each community is current
n,i; For each described community, according to P
n,i=R
n,i/ r
n,i, calculate the dispatching priority P of this community in this cycle
n,i; For the described dispatching priority P in this cycle
n,ibe the community of zero, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle; For the described dispatching priority P in this cycle
n,ithe community of non-zero, according to described P
n,idescending sort, and the adjacent cell interference threshold of described sequence Hou Ge community is determined successively according to preset strategy, described strategy is: if this community is arranged in before its all adjacent cell, then determine that this community is default maximum adjacent cell interference threshold at the new adjacent cell interference threshold in this cycle, otherwise, determine that this community is default minimum adjacent cell interference threshold at the new adjacent cell interference threshold 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 community is current
n,i, wherein, described a is default filtering factor, r
n-1, ifor the average transmission data volume of this community calculated at (n-1)th described interference threshold adjustment cycle.
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| 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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|---|---|---|---|
| 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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| CN103249152B true CN103249152B (en) | 2016-01-20 |
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| 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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