CN101316432B - Method for controlling ascending load of cell - Google Patents
Method for controlling ascending load of cell Download PDFInfo
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- CN101316432B CN101316432B CN2007101052874A CN200710105287A CN101316432B CN 101316432 B CN101316432 B CN 101316432B CN 2007101052874 A CN2007101052874 A CN 2007101052874A CN 200710105287 A CN200710105287 A CN 200710105287A CN 101316432 B CN101316432 B CN 101316432B
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Abstract
The invention provides a method used for controlling the uplink load of a cell, which comprises the steps: step S102, a wireless network controller is controlled to reconfigure the target power ratio of the non-service E-DCH relative to all E-DCH and the target RTWP of the cell by a physical shared channel; step S104, a node B measures the RTWP of the cell; when the RTWP measured is larger than the target RTWP, the step S106 is carried out; and step S106, the power ratio of the non-service E-DCH relative to all E-DCH is higher than or equals to the target power ratio, a command for reducing authorization is sent to non-service user equipment.
Description
Technical field
The present invention relates to the communications field, relate in particular to Wideband Code Division Multiple Access (WCDMA) and insert (WCDMA, Wideband Code Division Multiple Access) wireless communication system high speed upstream packet inserts (HSUPA, High Speed Uplink Packet Access) Ye Wu scheduling, particularly, relate to the method that is used to control ascending load of cell.
Background technology
The third generation (3G) wireless mobile communications is among the continuous evolution variation, constantly introduce new demand and realized low cost and high-performance, at the 5th edition (R5, Release5) and sixth version (R6, Release6) introduced high speed downlink packet access (HSDPA in respectively, High Speed Downlink Packet Access) and HSUPA, its purpose mainly is to improve the wireless frequency spectrum utilance, and improves the overall performance of system.
HSUPA is the enhancement techniques of WCDMA system to the uplink ability, mainly introduced three kinds of technology: physical layer is mixed automatic repeat requests (HARQ, Hybrid AutomaticRepeat Request), based on the fast dispatch of base station (Node B), the short frame transmission of 2 milliseconds of (ms) Transmission Time Intervals (TTI, Transmission Time Interval).Compare the transmission performance of traditional WCDMA version at uplink service, be significantly improved on the HSUPA systematic function, the increase of nearly 50%-70% on power system capacity has the minimizing of 20%-55% in the delay of end-to-end grouping bag, and 50% the increase of on the user grouping calling flow, having an appointment.
Use the WCDMA system of HSUPA technology to comprise: radio network controller (RNC, Radio Network Controller), Node B, subscriber equipment (UE, UserEquipment).
Node B is by measure the upstream noise lifting (RoT of each sub-district in good time, Rise overThermal), the uplink signal-channel quality of UE, by strengthening dedicated channel (E-DCH, Enhanced Dedicated Channel) upstream data obtains the dispatch request information of UE, determine to distribute to the scheduling authorization of each UE according to information such as the priority of the dispatch request information of the uplink signal-channel quality of the RoT situation of sub-district, UE, UE, UE, scheduling strategy that Node B scheduler adopts and algorithms, send corresponding dispatching command then to corresponding UE; UE is according to scheduling authorization and the non-scheduling authorization of RNC configuration and the buffer state of UE of Node B, in enhancing dedicated channel transport format combination (E-TFC, the E-DCH Transport Format Combination) table of the pre-configured UE of giving of RNC, select suitable transformat to merge and send up E-DCH data to Node B.
In HSUPA, can send mandate to UE by following three kinds of modes:
One, when Radio Link is set up, distribute initial mandate by service Node B (Serving Node B), pass to UE by RNC, this is authorized and is absolute grant;
Two, Serving Node B sends by E-DCH absolute grant channel (E-AGCH, E-DCH Absolute Grant Channel) and licenses to UE, and this is authorized and is absolute grant;
Three, Serving Node B and non-service Node B (Non-Serving Node B) are by E-DCH relative authorization channel (E-RGCH, E-DCH Relative GrantChannel) transmission licenses to UE, this is authorized and is relative authorization, can send mandate (UP), the mandate (DOWN) that reduces a step-length that improves a step-length and keep present mandate no change (HOLD) for Serving Node B, can send DOWN and HOLD for Non-Serving Node B, wherein concrete step-length is by the configuration decision of RNC.
For the UE of Non-Serving, Node B will send RG DOWN must satisfy following two conditions:
1. total reception broadband gross power (RTWP, Received Total Wide BandPower)〉control RNC (CRNC, Control RNC) configuration target RTWP;
2.Non-Serving E-DCH power is with respect to the power ratio of all E-DCH〉the E-DCH target power ratio of CRNC configuration.
Obviously, if the target power ratio of the E-DCH of control RNC configuration is 100%, then can not satisfy second condition, causing the UE in the sub-district all is Non-Serving UE, when perhaps the load of Non-Serving UE itself has surpassed the load that the maximum of sub-district allows, the load of the uncontrollable sub-district of Node B causes that at last the Radio Resource of sub-district worsens, and causes the unstable even collapse of system.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, the present invention aims to provide a kind of scheme that can effectively control ascending load of cell, and it has realized the effective control to ascending load of cell by suitably revising the condition that sends RG DOWN to non-service-user equipment.
According to the embodiment of the invention, a kind of method that is used to control ascending load of cell is provided, this method comprises following processing:
Step S102, the control radio network controller reconfigures non-service E-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel;
Step S104, Node B is measured the RTWP of sub-district; Under the situation of RTWP of measuring, proceed to step S106 greater than target RTWP; And
Step S106 under power ratio the situation more than or equal to target power ratio of non-service E-DCH with respect to all E-DCH, sends the order that reduces mandate to non-service-user equipment.
Wherein, between step S102 and step S104, comprise following processing: Node B is returned Physical Shared Channel to the control radio network controller and is reconfigured success.
Afterwards, after step S104, be not more than at RTWP under the situation of target RTWP, and after step S106, carry out following processing: Node B is dispatched service-user equipment.
According to embodiments of the invention, a kind of method that is used to control ascending load of cell is provided again, this method comprises following processing:
Step S302, the control radio network controller reconfigures non-service E-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel, and wherein, target power is than being 0%-A%, and A is the integer less than 100;
Step S304, Node B is measured the RTWP of sub-district; Under the situation of RTWP of measuring, proceed to step S306 greater than target RTWP;
Step S306 under power ratio the situation greater than target power ratio of non-service E-DCH with respect to all E-DCH, sends the order that reduces mandate to non-service-user equipment.
Wherein, between step S302 and step S304, comprise following processing: Node B is returned Physical Shared Channel to the control radio network controller and is reconfigured success.
Afterwards, after step S304, be not more than at RTWP under the situation of target RTWP, and after step S306, carry out following processing: Node B is dispatched service-user equipment.
By technique scheme of the present invention, send the condition of RG DOWN or revise the scope of non-service E-DCH by revising non-service-user equipment with respect to the target power ratio of all E-DCH, make Node B under any circumstance can both control the load of sub-district effectively, thereby system can be run well.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of method that is used to control ascending load of cell according to the inventive method embodiment one;
Fig. 2 is the detailed process flow chart of method that is used to control ascending load of cell according to the inventive method embodiment one;
Fig. 3 is the flow chart of method that is used to control ascending load of cell according to the inventive method embodiment two; And
Fig. 4 is the detailed process flow chart of method that is used to control ascending load of cell according to the inventive method embodiment two.
Embodiment
As mentioned above, for the UE of Non-Serving, Node B will send RG DOWN must satisfy following two conditions:
1. total reception broadband gross power (RTWP, Received Total Wide BandPower)〉control RNC (CRNC, Control RNC) configuration target RTWP;
2.Non-Serving E-DCH power is with respect to the power ratio of all E-DCH〉the E-DCH target power ratio of CRNC configuration.
In order to make Node B under any circumstance can both control the load of sub-district effectively, the present invention realizes by revising above-mentioned two conditions respectively.For this reason, the invention provides following two kinds of schemes avoids Non-Serving E-DCH power can not satisfy with respect to the power ratio of all E-DCH〉100% situation:
Scheme 1: revise second condition that Non-Serving UE sends RG DOWN;
Scheme 2, the scope of the E-DCH target power ratio of modification CRNC configuration.
In the following embodiments, respectively two kinds of above-mentioned schemes are described in detail.
Below will describe embodiments of the invention in detail with reference to accompanying drawing respectively, wherein, provide following embodiment with provide to of the present invention comprehensively and thorough, rather than the present invention carried out any restriction.
Method embodiment one
In the present embodiment, provide a kind of method that is used to control ascending load of cell, it adopts first kind of scheme,, revises second condition that Non-Serving UE sends RG DOWN that is.
This method can be divided into two processes carries out, that is, (1) reconfigures flow process by Physical Shared Channel and carries out the layoutprocedure of Non-Serving E-DCH with respect to the information such as power ratio of all E-DCH; (2) scheduling process of Node B.
As shown in Figure 1, usually, this method comprises following processing:
Step S102, CRNC reconfigures Non-ServingE-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel;
Step S104, Node B measures the RTWP of sub-district; Under the situation of RTWP of measuring, proceed to step S106 greater than target RTWP; And
Step S106 under power ratio the situation more than or equal to target power ratio of Non-Serving E-DCH with respect to all E-DCH, sends the order (RG DOWN) that reduces mandate to (part or all of) Non-ServingUE.
Wherein, between step S102 and step S104, comprise following processing: Node B returns Physical Shared Channel to CRNC and reconfigures success.
Afterwards, after step S104, be not more than at RTWP under the situation of target RTWP, and after step S106, carry out following processing: Node B dispatches Serving UE.
Based on foregoing, the detailed process process of this method has been shown among Fig. 2.As shown in Figure 2, comprise following processing:
Process 1
1, CRNC reconfigures Non-Serving E-DCH with respect to the power ratio of all E-DCH, the information such as RTWP desired value of sub-district by Physical Shared Channel;
2, Node B returns the success of Physical Shared Channel reprovision to CRNC;
Process 2
1, Node B measures the RTWP of sub-district;
If the RTWP of 2 sub-districts greater than the RTWP desired value of CRNC configuration, then continues to carry out, otherwise carries out for the 4th step;
If the power of 3 Non-Serving E-DCH and the power ratio of all E-DCH then send RG DOWN to some or all Non-Serving UE more than or equal to the Non-Serving E-DCH of the CRNC configuration power ratio with respect to all E-DCH;
4, the HSUPA scheduler normal consistency of Node B promptly, is dispatched Serving UE.
Method embodiment two
In the present embodiment, provide a kind of method that is used to control ascending load of cell, it adopts second kind of scheme,, revises the scope of the E-DCH target power ratio of CRNC configuration that is.
Similar with first embodiment, this method can be divided into two processes equally carries out, that is, (1) reconfigures flow process by Physical Shared Channel and carries out the layoutprocedure of Non-Serving E-DCH with respect to the information such as power ratio of all E-DCH; (2) scheduling process of Node B.
As shown in Figure 3, usually, this method comprises following processing:
Step S302, CRNC reconfigures Non-ServingE-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel, and wherein, the target power ratio is 0%-A%, and A is the integer less than 100;
Step S304, Node B measures the RTWP of sub-district; Under the situation of RTWP of measuring, proceed to step S306 greater than target RTWP; And
Step S306 under power ratio the situation greater than target power ratio of Non-Serving E-DCH with respect to all E-DCH, sends the order (RG DOWN) that reduces mandate to (part or all of) Non-Serving UE.
Wherein, between step S302 and step S304, comprise following processing: Node B returns Physical Shared Channel to CRNC and reconfigures success.
Afterwards, after step S304, be not more than at RTWP under the situation of target RTWP, and after step S306, carry out following processing: Node B dispatches Serving UE.
Based on foregoing, the detailed process process of this method has been shown among Fig. 4.As shown in Figure 4, comprise following processing:
Process 1
1, CRNC reconfigures Non-Serving E-DCH with respect to the target power of all E-DCH information such as RTWP desired value than (0%-A%, A are the integer less than 100), sub-district by Physical Shared Channel, and its message format is as shown in table 1:
Table 1
Wherein, field in the form of the end row in the last table is the field that the embodiment of the invention is revised its span, wherein, the concrete definition of IE " Target Non-Serving E-DCH to TotalE-DCH Power ratio Non-Serving E-DCH " is as shown in table 2:
| InformationElement/GroupName information element/group name claims | Presence selects | The Range scope | Type and Reference reftype | The explanation of the SemanticsDescription meaning of one's words |
| Target Non-servingE-DCH to TotalE-DCH Power RatioNon-ServingE-DCH is with respect to the target power ratio of all E-DCH | INTEGER (0..A) integer (0..A) | Unit:%Range:0..A%Step:1% unit: % scope: 0..A% step-length: 1% |
Table 2
Wherein, A is the integer less than 100.
2, Node B returns the success of Physical Shared Channel reprovision to CRNC;
Process 2
1, Node B measures the RTWP of sub-district;
If the RTWP of 2 sub-districts greater than the RTWP desired value of CRNC configuration, then continues to carry out, otherwise carries out for the 4th step;
If the power of 3 Non-Serving E-DCH and the power ratio of all E-DCH then send RG DOWN to some or all Non-Serving UE greater than the Non-Serving E-DCH of the CRNC configuration power ratio with respect to all E-DCH;
4, the HSUPA scheduler normal consistency of Node B promptly, is dispatched Serving UE.
By technique scheme of the present invention, can effectively control the load of sub-district, thereby improve the stability of system.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method that is used to control ascending load of cell is characterized in that, comprises following processing:
Step S102, the control radio network controller reconfigures non-service E-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel;
Step S104, Node B is measured the RTWP of sub-district;
Under the situation of described RTWP of measuring, proceed to step S106 greater than described target RTWP; And
Described step S106 under power ratio the situation more than or equal to described target power ratio of non-service E-DCH with respect to all E-DCH, sends the order that reduces mandate to non-service-user equipment.
2. the method that is used to control ascending load of cell according to claim 1 is characterized in that, between described step S102 and described step S104, comprises following processing:
Described Node B is returned Physical Shared Channel to described control radio network controller and is reconfigured success.
3. the method that is used to control ascending load of cell according to claim 2 is characterized in that, after described step S104, is not more than at described RTWP under the situation of described target RTWP, carries out following processing:
Described Node B is dispatched service-user equipment.
4. the method that is used to control ascending load of cell according to claim 2 is characterized in that, after described step S106, carries out following processing:
Described Node B is dispatched service-user equipment.
5. a method that is used to control ascending load of cell is characterized in that, comprises following processing:
Step S302, the control radio network controller reconfigures non-service E-DCH with respect to the target power ratio of all E-DCH, the target RTWP of sub-district by Physical Shared Channel, and wherein, described target power is than being 0%-A%, and A is the integer less than 100;
Step S304, Node B is measured the RTWP of sub-district;
Under the situation of described RTWP of measuring, proceed to step S306 greater than described target RTWP; And
Described step S306 under power ratio the situation greater than described target power ratio of non-service E-DCH with respect to all E-DCH, sends the order that reduces mandate to non-service-user equipment.
6. the method that is used to control ascending load of cell according to claim 5 is characterized in that, between described step S302 and described step S304, comprises following processing:
Described Node B is returned Physical Shared Channel to described control radio network controller and is reconfigured success.
7. the method that is used to control ascending load of cell according to claim 6 is characterized in that, after described step S304, is not more than at described RTWP under the situation of described target RTWP, carries out following processing:
Described Node B is dispatched service-user equipment.
8. the method that is used to control ascending load of cell according to claim 6 is characterized in that, after described step S306, carries out following processing:
Described Node B is dispatched service-user equipment.
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| CN2007101052874A CN101316432B (en) | 2007-05-31 | 2007-05-31 | Method for controlling ascending load of cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787682A (en) * | 2004-12-07 | 2006-06-14 | 华为技术有限公司 | Method for controlling up-link load of base station |
| CN1885961A (en) * | 2005-06-23 | 2006-12-27 | 华为技术有限公司 | Uplink load controlling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1787682A (en) * | 2004-12-07 | 2006-06-14 | 华为技术有限公司 | Method for controlling up-link load of base station |
| CN1885961A (en) * | 2005-06-23 | 2006-12-27 | 华为技术有限公司 | Uplink load controlling method |
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