CN102378381A - Resource distribution method and device for service access - Google Patents

Resource distribution method and device for service access Download PDF

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Publication number
CN102378381A
CN102378381A CN2010102643144A CN201010264314A CN102378381A CN 102378381 A CN102378381 A CN 102378381A CN 2010102643144 A CN2010102643144 A CN 2010102643144A CN 201010264314 A CN201010264314 A CN 201010264314A CN 102378381 A CN102378381 A CN 102378381A
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time slot
carrier wave
resource allocation
descending
confirm
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CN102378381B (en
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张晟
石浩
肖建华
贾思远
杜金宇
康绍莉
赵孟凯
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China Mobile Communications Group Co Ltd
Datang Mobile Communications Equipment Co Ltd
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China Mobile Communications Group Co Ltd
Datang Mobile Communications Equipment Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention provides a resource distribution method and device for service access, wherein the resource distribution method comprises the steps of: determining at least one standby cell according to a received RRC (Regional Resource Center) connection request comprising cell information; correspondingly determining a downlink power factor value at each uniform downlink time slot of each same frequency carrier according to a carrier emission power value of the at least one standby cell at each uniform downlink time slot of each same frequency carrier; and determining a resource distribution priority according to the downlink power factor value at each uniform downlink time slot of each same frequency carrier, and then performing the resource distribution operation. In the invention, the resource with less downlink interference is selected for use, so that a received strong interference or a generated strong interference is avoided; the quality of service is increased; and the access efficiency is improved.

Description

The resource allocation methods of service access and device
Technical field
The present invention relates to the wireless network technical field, be specifically related to a kind of resource allocation methods and device of service access.
Background technology
Insert (TD-SCDMA, Time Division-SynchronousCode MoltipleAccess can abbreviate TD as) system for TD SDMA and (comprise protocol edition 4 (R4; Release 4) and high-speed packet access (HSPA; High Speed Packet Access)), network side is to new subscriber equipment (UE, User Equipment; Be commonly referred to as the terminal) before the resource allocation when inserting; Generally at first alternative resource is carried out the ordering of priority according to certain criterion, begin traversal from the highest alternative resource of priority again, promptly attempt resource allocation one by one up to successfully inserting.The implementation of current traversal is generally: successively travel through according to carrier wave priority query and time slot priority query respectively; Wherein, The account form of carrier wave and time slot priority query has following three kinds: (OAMS, Operation And Maintenance Supervise) is provided with permanent order through oam; Sort according to power resource; Wherein, up based on base station reception broadband gross power or slot interfering signal of time sign indicating number power (ISCP, Interfere Signal Code Power); Descending based on the base station gross power; During concrete operations, through the priority query that the up-downgoing weighted calculation draws carrier wave, the time slot priority query that draws each carrier wave afterwards again; Sort according to the sign indicating number occupation condition.
Because the short code characteristic of TD system and frequency resource lack, cause interference-limitedly at present, generally confirm the resource allocation foundation according to power division or interference measure.For mode according to the power resource ordering; The actual loading situation (for example basic resource unit (BRU, BasicResource Unit) takies situation or power division situation) that needs to consider uplink and downlink is made a strategic decision, because this decision-making is generally carried out at RNC; So uplink interference information is more abundant; Descending interfere information is then difficult to be obtained, and it is insufficient to cause descending interfere information to obtain, and then makes that the resource decision of descending distribution is inaccurate; Cause the quality of new UE service access to descend, access efficiency is low.
Summary of the invention
First purpose of the present invention is the resource allocation methods that proposes the high service access of a kind of efficient.
Second purpose of the present invention is the resource allocation device that proposes the high service access of a kind of efficient.
For realizing above-mentioned first purpose; The invention provides a kind of resource allocation methods of service access; Comprise: according to the RRC connection request that comprises cell information that receives; Confirm at least one alternative cell, and according at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently; Confirm priority of resource allocation according to each with the descending power factor values of each identical descending time slot of frequency carrier wave, carry out resource allocation operations.
For realizing above-mentioned second purpose; The invention provides a kind of resource allocation device of service access; Comprise: processing module is used for confirming at least one alternative cell according to the RRC connection request that comprises cell information that receives; And according at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently; Resource distribution module is used for confirming priority of resource allocation with the descending power factor values of each identical descending time slot of frequency carrier wave according to each, carries out resource allocation operations.
Among each embodiment of the present invention; Through the available neighboring BS information of considering when the service access to exist in the pilot measurement information that UE reports; Promptly combine the resource sort by of the TCP value of each alternative cell as downlink interference collaboration; The descending power situation of considering the adjacent area makes that new UE assessment to descending interference when the Target cell Resources allocation is more accurate, realizes selecting the littler resource of descending interference to use, thereby has avoided receiving strong jamming or produced strong jamming; Promote quality of service, promote access efficiency.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention in the lump with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is embodiment one flow chart of the resource allocation methods of service access of the present invention;
Fig. 2 is embodiment two flow charts of the resource allocation methods of service access of the present invention;
Fig. 3 is the example structure figure of the resource allocation device of service access of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Method embodiment
Fig. 1 is embodiment one flow chart of the resource allocation methods of service access of the present invention.As shown in Figure 1, present embodiment comprises:
Step S102:, confirm at least one alternative cell according to the RRC connection request that comprises cell information that receives; Detailed explaining referring to step 201 among Fig. 2 and 202;
Step S104: according at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently; Detailed explaining referring to step 203 among Fig. 2 and 204;
Step S106: confirm priority of resource allocation according to each with the descending power factor values of each identical descending time slot of frequency carrier wave, carry out resource allocation operations; Detailed explaining referring to step 205 among Fig. 2.
The available neighboring BS information of present embodiment through existing in the pilot measurement information of considering UE when the service access and reporting; Carrier transmit power (the TCP that promptly combines each alternative cell; Transmit CarrierPower) value is as the resource sort by of downlink interference collaboration; The descending power situation of considering the adjacent area makes that new UE assessment to descending interference when the Target cell Resources allocation is more accurate, realizes selecting the littler resource of descending interference to use, thereby has avoided receiving strong jamming or produced strong jamming; Promote quality of service, promote access efficiency.
Fig. 2 is embodiment two flow charts of the resource allocation methods of service access of the present invention.As shown in Figure 2, present embodiment comprises:
Step 201 confirms that according to RRC (Radio Resource Control, the Radio Resource control) connection request that UE sends target inserts sub-district (promptly receiving the current service cell of this RRC request), and this RRC connection request comprises cell information and pilot strength information;
Step 202 according to cell information and pilot strength information, is confirmed alternative cell; Specifically can comprise:
At first, all the sub-district notes in the UE pilot report in this RRC connection request are made AdjCellList;
Secondly,,, will differ within the specific limits sub-district as alternative cell, specifically be expressed as: PCCPCH_RSCP with current area pilot tone (dB value) according to predefined thresholding InterfCellTh in order better to confirm the scope of alternative cell Targ etCell-PCCPCH_RSCP OtherCell-i＜InterfCellTh; Wherein, PCCPCH_RSCP Targ ellBe the pilot measurement end value of current area, PCCPCH_RSCP OtherCell-iIt is the pilot measurement end value of i adjacent area;
Once more, during concrete operations, can increase switch in advance newly and " whether consider current area during access ", if this switch is configured to " being ", then with the interpolation current area as alternative cell;
It will be appreciated by those skilled in the art that; During concrete operations; Can also be provided with if do not carry the pilot report of any sub-district in the RRC connection request; Or only carried the pilot frequency information of current area, then carry out resource selection according to present SDCA (Slow Dynamic Channel Allocation, slow dynamic channel allocation) algorithm;
Step 203, according to circuit loss value TCP (carrier transmit power) measured value of each descending time slot of each alternative cell is revised, specifically comprised:
At first, " whether use the path loss weighting " according to preset switches be configured to " being " time, according to the circuit loss value that the pilot strength information and the radio transmission power of each alternative cell are confirmed corresponding alternative cell, computing formula is following:
α i＝(PCCPCH_RSCP i-PCCPCH_Power i)-(PCCPCH_RSCP t-PCCPCH_Power i) (1)
Wherein PCCPCH Power representes the radio transmission power of this sub-district, allows the broadcasting power of each sub-district different; Under be designated as i and represent i alternative cell, being designated as t representes current sub-district to be accessed down, each parameter is the dB value;
Secondly, be that corresponding alternative cell is in each carrier transmit performance number weighting with each identical descending time slot of frequency carrier wave, that is: by this circuit loss value
TCP i , j , h ′ = TCP i , j , h × 10 α i 10 - - - ( 2 )
Need to prove that step 203 is carried out path loss according to pilot tone and is modified to preferred version, if do not adopt this optimal way can directly use current TCP value, i.e. TCP ' I, j, h=TCP I, j, h
Step 204 according to the carrier transmit performance number sum of at least one alternative cell after each is with the weighting of each identical descending time slot of carrier wave frequently, correspondingly confirms that each is with descending power factor values of each identical descending time slot of carrier wave frequently; Specifically comprise:
According to the control of measured value and two switches of TCP (promptly whether with current area as alternative cell and whether consider path loss); H the total interference value (being the descending power factor values) of descending time slot statistics to j carrier wave of Target cell; Wherein, N is for disturbing the adjacent area number, and formula (3) is not for to consider that current area TCP is the situation of alternative cell, and formula (4) is for considering that current area TCP is the situation of alternative cell;
P j , h = Σ i = 1 N TCP i , j , h × 10 MaxTransPow er i + α i 10 Σ i = 1 N 10 MaxTransPow er i + α i 10 - - - ( 3 )
P j , h = TCP t , j , h × 10 MaxTransP ower i 10 + Σ i = 1 N TCP i , j , h × 10 MaxTransP ower i + α i 10 10 MaxTransP ower t 10 + Σ i = 1 N 10 MaxTrans Power i + α i 10 - - - ( 4 )
Step 205, each the descending power factor values that calculates according to step 204, and existing SDCA carrier wave, time slot queuing criterion, weighting draws the priority query of alternative resource: idiographic flow can comprise:
At first, according to each mean value, confirm carrier wave priority query with the descending power factor values of each descending time slot of frequency carrier wave; During concrete operations; At first according to the mean value of each same descending power factor values of each descending time slot of carrier wave frequently and the mean value of the ascending power factor values of each each ascending time slot of carrier wave that uses traditional SDCA algorithm to obtain; Again the mean value of the mean value of each descending power factor values and ascending power factor values is carried out linear weighted function and obtain the carrier power factor (method of weighting is identical with traditional SDCA algorithm); According to the carrier power factor, confirm carrier wave priority query then;
Secondly, according to the descending power factor values of each descending time slot, confirm time slot priority query; During concrete operations, can also combine the descending power factor values of each definite descending time slot of various embodiments of the present invention and the ascending power factor values that traditional SDCA algorithm is confirmed, confirm time slot priority query;
Once more, according to carrier wave priority query and time slot priority query traversal, carry out resource allocation operations;
Need to prove, during concrete operations, can also be before carrying out above-mentioned steps 202-step 205; Judge whether the current area pilot frequency intensity is higher than preset pilot threshold, when the current area pilot frequency intensity in the UE report is higher than this thresholding, regard as center of housing estate; Use original SDCA algorithm; When being lower than this thresholding, regard as cell edge, use the interference coordination algorithm; Like this, realized the user who inserts at center of housing estate is used the interference coordination algorithm, having solved the user possibly insert at center of housing estate, and disturb its influence and little situation the adjacent area;
When service access; For RAB (Radio Access Bare; Unlimited access bearer) assigns, set a time delay timer TRAB, when the time interval of RAB appointment and RRC connection request is grown less than this timer; Pilot frequency information when RAB assigns is taken from the pilot report in the RRC request, and public metrical informations such as TCP read the up-to-date value of reporting of NB; When RAB assign with the RRC connection request when long, use existing SDCA algorithm operating interval greater than this timer when RAB assigns, like this, solved the identical situation of resource ordering strategy that present RRC connects employing when setting up with RAB; In addition, when reorientation,, therefore can't use the interference coordination algorithm, still get final product according to original SDCA algorithm operating owing to can't obtain measurement result between RNC.
The available neighboring BS information of present embodiment through existing in the pilot measurement information of considering UE when the service access and reporting; Promptly combine the resource sort by of the TCP value of each alternative cell as downlink interference collaboration; The descending power situation of considering the adjacent area makes that new UE assessment to descending interference when the Target cell Resources allocation is more accurate, realizes selecting the littler resource of descending interference to use, thereby has avoided receiving strong jamming or produced strong jamming; Promote quality of service, promote access efficiency; Select alternative cell and carry out the processing of path loss according to pilot tone simultaneously, further improved access efficiency; Setting up the time interval that RRC connects and RAB assigns according to UE, selecting the method for different resources ordering strategy, solving the identical situation of resource ordering strategy that adopts when present RRC connection is set up with RAB; Being provided with of pilot threshold solved the user and possibly insert at center of housing estate, and disturb its influence and little situation the adjacent area.
Device embodiment
Fig. 3 is the example structure figure of the resource allocation device of service access of the present invention.Each method embodiment shown in Fig. 1 and 2 is all applicable to present embodiment.Present embodiment comprises: processing module 32; Be used for according to the RRC connection request that comprises cell information that receives; Confirm at least one alternative cell; And according at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently; Resource distribution module 34 is used for confirming priority of resource allocation with the descending power factor values of each identical descending time slot of frequency carrier wave according to each, carries out resource allocation operations.
During concrete operations, this processing module 32 can comprise:
Cell selecting submodule 322 is used for the pilot strength information that comprises according to cell information and RRC connection request, confirms the pilot frequency intensity of current area and other sub-districts; The difference of pilot frequency intensity in other sub-districts and current area pilot frequency intensity is confirmed as at least one alternative cell less than the sub-district of preset value;
The sub-district increases submodule 324, is used for current area is confirmed as alternative cell;
Path loss processing sub 326 is used for the circuit loss value of confirming corresponding alternative cell according to the pilot strength information and the radio transmission power of each alternative cell;
Power Processing submodule 328 is used for according to circuit loss value, is the carrier transmit performance number weighting of corresponding alternative cell at each identical descending time slot of each same frequency carrier wave; According to the carrier transmit performance number sum of at least one alternative cell after each is with the weighting of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently.
This resource distribution module 34 can comprise:
Carrier wave submodule 342; Be used for mean value according to the descending power factor values of each descending time slot of each carrier wave (during concrete operations; It is also conceivable that the mean value of the ascending power factor values of each each ascending time slot of carrier wave that the traditional SDCA algorithm of use obtains; See explaining of step 205 for details), confirm carrier wave priority query; Time slot submodule 344 is used for the descending power factor values (during concrete operations, it is also conceivable that the ascending power factor values of using traditional SDCA algorithm to obtain, see explaining of step 205 for details) according to each descending time slot, confirms time slot priority query; Traversal distribution sub module 346 is used for carrying out resource allocation operations according to carrier wave priority query and time slot priority query traversal.
Need to prove that the resource allocation device of service access can be arranged among the RNC.
In the present embodiment; Consider the available neighboring BS information that exists in the pilot measurement information that UE reports when the service access through processing module 32; Promptly combine the resource sort by of the TCP value of each alternative cell as downlink interference collaboration; The descending power situation of considering the adjacent area makes that new UE assessment to descending interference when the Target cell Resources allocation is more accurate, realizes selecting the littler resource of descending interference to use, thereby has avoided receiving strong jamming or produced strong jamming; Promote quality of service, promote access efficiency.
What should explain at last is: more than be merely the preferred embodiments of the present invention; Be not limited to the present invention; Although the present invention has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. the resource allocation methods of a service access is characterized in that, comprising:
According to the RRC connection request that comprises cell information that receives; Confirm at least one alternative cell; And according to said at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently;
Confirm priority of resource allocation according to said each same descending power factor values of each identical descending time slot of carrier wave frequently, carry out resource allocation operations.
2. the resource allocation methods of service access according to claim 1 is characterized in that, according to the RRC connection request that comprises cell information that receives, confirms that the step of at least one alternative cell comprises according to said:
According to the pilot strength information that said cell information and said RRC connection request comprise, confirm the pilot frequency intensity of current area and other sub-districts;
The difference of pilot frequency intensity and said current area pilot frequency intensity in said other sub-districts is confirmed as said at least one alternative cell less than the sub-district of preset value.
3. the resource allocation methods of service access according to claim 2 is characterized in that, also comprises: said current area is confirmed as alternative cell.
4. require the resource allocation methods of the described service access of 1-3 item according to aforesaid right; It is characterized in that; Said according to said at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each comprises with step of the descending power factor values of each identical descending time slot of carrier wave frequently:
The circuit loss value of confirming corresponding alternative cell according to the pilot strength information and the radio transmission power of each alternative cell;
According to said circuit loss value, be of the carrier transmit performance number weighting of corresponding alternative cell at each identical descending time slot of each same frequency carrier wave;
According to the carrier transmit performance number sum of said at least one alternative cell after each is with the weighting of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently.
5. require the resource allocation methods of each described service access among the 1-3 according to aforesaid right; It is characterized in that; Said according to said each confirm priority of resource allocation with descending power factor values of each identical descending time slot of carrier wave frequently, the step of carrying out resource allocation operations comprises:
According to each mean value, confirm carrier wave priority query with the descending power factor values of each descending time slot of frequency carrier wave;
According to the descending power factor values of each descending time slot, confirm time slot priority query;
According to said carrier wave priority query and time slot priority query traversal, carry out resource allocation operations.
6. require the resource allocation methods of each described service access among the 1-3 according to aforesaid right, it is characterized in that, according to the RRC connection request that comprises cell information that receives, confirm that the step of at least one alternative cell comprises before said:
According to the pilot strength information that said cell information and said RRC connection request comprise, confirm the pilot frequency intensity of current area;
When the pilot frequency intensity of current area is lower than preset pilot threshold, carries out the said RRC connection request that comprises cell information according to reception, confirm the step of at least one alternative cell.
7. the resource allocation device of a service access is characterized in that, comprising:
Processing module; Be used for according to the RRC connection request that comprises cell information that receives; Confirm at least one alternative cell; And according to said at least one alternative cell at each with the carrier transmit performance number of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently;
Resource distribution module is used for confirming priority of resource allocation according to said each same descending power factor values of each identical descending time slot of carrier wave frequently, carries out resource allocation operations.
8. the resource allocation device of service access according to claim 7 is characterized in that, said processing module comprises:
The cell selecting submodule is used for the pilot strength information that comprises according to said cell information and said RRC connection request, confirms the pilot frequency intensity of current area and other sub-districts; The difference of pilot frequency intensity and said current area pilot frequency intensity in said other sub-districts is confirmed as said at least one alternative cell less than the sub-district of preset value;
The sub-district increases submodule, is used for said current area is confirmed as alternative cell.
9. according to the resource allocation device of claim 7 or 8 described service accesses, it is characterized in that said processing module also comprises:
The path loss processing sub is used for the circuit loss value of confirming corresponding alternative cell according to the pilot strength information and the radio transmission power of each alternative cell;
The Power Processing submodule is used for according to said circuit loss value, is the carrier transmit performance number weighting of corresponding alternative cell at each identical descending time slot of each same frequency carrier wave; According to the carrier transmit performance number sum of said at least one alternative cell after each is with the weighting of each identical descending time slot of carrier wave frequently, correspondingly confirm that each is with descending power factor values of each identical descending time slot of carrier wave frequently.
10. according to the resource allocation device of claim 7 or 8 described service accesses, it is characterized in that said resource distribution module comprises:
The carrier wave submodule is used for the mean value according to the descending power factor values of each descending time slot of each carrier wave, confirms carrier wave priority query;
The time slot submodule is used for the descending power factor values according to each descending time slot, confirms time slot priority query;
The traversal distribution sub module is used for carrying out resource allocation operations according to said carrier wave priority query and time slot priority query traversal.
11. the resource allocation device according to claim 7 or 8 described service accesses is characterized in that it is arranged among the RNC.
CN201010264314.4A 2010-08-26 2010-08-26 Resource distribution method and device for service access Active CN102378381B (en)

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CN111953468A (en) * 2014-12-26 2020-11-17 北京三星通信技术研究有限公司 Method and device for configuring uplink and downlink carriers

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CN101656979A (en) * 2008-08-19 2010-02-24 华为技术有限公司 Method, device and system for managing resources in multi-carrier system
CN101765164A (en) * 2008-12-23 2010-06-30 中兴通讯股份有限公司 Downlink resource allocation method for multi-carrier time division duplex system

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CN1571574A (en) * 2004-05-09 2005-01-26 中兴通讯股份有限公司 A wireless communication system access control method
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CN111953468A (en) * 2014-12-26 2020-11-17 北京三星通信技术研究有限公司 Method and device for configuring uplink and downlink carriers
CN111953468B (en) * 2014-12-26 2023-12-01 北京三星通信技术研究有限公司 Method and device for configuring uplink and downlink carriers
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CN105050192B (en) * 2015-06-04 2018-10-12 重庆邮电大学 Interference management method based on virtual subdistrict in dense network

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