CN102215578A - Method for allocating mobile communication resources - Google Patents

Method for allocating mobile communication resources Download PDF

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Publication number
CN102215578A
CN102215578A CN2010101459810A CN201010145981A CN102215578A CN 102215578 A CN102215578 A CN 102215578A CN 2010101459810 A CN2010101459810 A CN 2010101459810A CN 201010145981 A CN201010145981 A CN 201010145981A CN 102215578 A CN102215578 A CN 102215578A
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rep
subframe
take
repetition period
occupancy
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CN2010101459810A
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韦江贝
谢勇
王亮
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TD Tech Ltd
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TD Tech Ltd
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Abstract

The invention provides a method for allocating mobile communication resources. The mobile communication resources comprise subframes and channelized code resources, and user equipment (UE) which occupies the same channelized code resource occupies a subframe with length LRep in a repetition period (TRep), wherein LRep is smaller than TRep. The method comprises the following steps of: presetting an occupancy rate threshold of jointly occupied subframes of all UE which occupies the same channelized code resource, determining an occupancy rate of jointly occupied subframes of all UE which occupies the current channelized code resource, and when the determined occupancy rate exceeds the threshold, making the occupancy rate of the jointly occupied subframes of all UE which occupies the current channelized code resource not exceed the threshold by changing the repetition period TRep or the length LRep. By the method, the utilization rate of the mobile communication resources can be improved.

Description

A kind of distribution method of mobile communication resources
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of distribution method of mobile communication resources.
Background technology
In mobile communication system such as TD-SCDMA, in order to improve number of users and the resource utilization that carrier wave can hold, introduced the data-transmission mode of semi-continuous scheduling (SPS), be used to transmit high-level signaling or periodic professional, for example transmit the VoIP business.
The SPS pattern can be applied in up (UL) direction, also can be applied in descending (DL) direction.Under the SPS pattern, mobile communication system can be simultaneously for a plurality of UE provide the mobile communication service in a frame, and each UE is at each repetition period T RepIn use length to be L RepThe subframe transport service.
Particularly, under the SPS pattern, the Radio Resource of each frame comprises time slot and channel code, a plurality of UE can be by using the time interval resource of the different multiplexing same frames of channel code, promptly divide multiplexing mode to give a plurality of subscriber equipmenies (UE), in same frame, provide the mobile communication service for a plurality of UE simultaneously the allocation of radio resources under the SPS pattern by frame.
The parameter of SPS pattern comprises repetition period T RepWith repeat length L Rep, T RepAnd L RepBe respectively 2 nWith 2 mIndividual frame length, wherein n and m are natural numbers, and m≤n, usually, L RepEqual a sub-frame length.Each UE is at each T RepThe interior L that uses RepTime interval resource transmission high-level business or periodic professional.
When mobile communication system adopts the SPS pattern, if L RepNecessarily, repetition period T then RepDetermined the number of users that system can hold, T RepBig more, the number of users that system can hold is many more, T RepMore little, the number of users that system can hold is more little, simultaneously T RepAlso determined professional time delay, T RepBig more, service delay is big more, T RepMore little, service delay is more little.If T RepNecessarily, repeat length L RepDetermined the number of users that system can hold, L RepBig more, the number of users that system can hold is more little, L RepMore little, the number of users that system can hold is many more.
At present, the SPS pattern adopts static configuration usually, i.e. T under the SPS pattern RepAnd L RepIn case configuration finishes then can not change, system is according to this T RepAnd L RepFor UE distributes mobile communication resources.
The number of users of access mobile communication system changes at any time, when the SPS pattern adopts static configuration, if the number of users that request inserts is too much, surpass the number of users that the configuration of SPS pattern can be held, then will cause system to distribute mobile communication resources, and cause these certain customers can't obtain the mobile communication service, if the number of users that request inserts is very few for certain customers, be far smaller than the number of users that the configuration of SPS pattern can be held, then will cause waste of radio resources.Therefore when the user of request access was too much and very few, the mobile communication resources utilance was all lower.
Summary of the invention
In view of this, the invention provides a kind of distribution method of mobile communication resources, to improve the utilance of mobile communication resources.
Technical scheme of the present invention specifically is achieved in that
A kind of distribution method of mobile communication resources, described mobile communication resources comprises subframe and channelization code resource, the UE that takies the same channelization codes resource is at repetition period T RepIn to take length be L RepSubframe, L wherein RepLess than T Rep, this method comprises:
Preestablish the occupancy thresholding that all UE that take the same channelization codes resource take subframe altogether, all UE that determine to take current channelization code resource take the occupancy of subframe altogether, when the occupancy of determining surpasses described thresholding, by changing repetition period T RepPerhaps length L RepValue, the occupancy that makes all UE take current channelization code resource take subframe altogether is no more than described thresholding;
Described occupancy is a repetition period T RepIn take subframe and this repetition period T that all UE of same channelization codes resource take altogether RepThe ratio of all interior subframes.
As seen from the above technical solution, the present invention preestablishes the occupancy thresholding that all UE that take the same channelization codes resource take subframe altogether, all UE that determine to take current channelization code resource take the occupancy of subframe altogether, when the occupancy of determining surpasses described thresholding, by changing repetition period T RepPerhaps length L RepValue, the occupancy that makes all UE take current channelization code resource take subframe altogether is no more than described thresholding.That is to say that the present invention dynamically changes repetition period T according to intrasystem number of users RepPerhaps length L Rep, increase power system capacity more for a long time at number of users, increase to the mobile communication resources that each user distributes at number of users more after a little while, thereby can improve the mobile communication resources utilance.
Description of drawings
Fig. 1 is the distribution method flow chart of mobile communication resources provided by the invention.
Fig. 2 be first channel code the time interval resource occupancy more than or equal to before the Upper threshold and mobile communication resources afterwards distribute schematic diagram.
Fig. 3 is that the time interval resource occupancy of RU (1) is less than or equal to before the Upper threshold and mobile communication resources afterwards distributes schematic diagram.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
In the mobile communication resources distribution method provided by the invention, described mobile communication resources comprises subframe and channelization code resource, channelization code resource wherein can be a kind of channel code, also can comprise two or more channel codes, by plural UE by taking the multiplexing identical subframe of different channel codes, all UE that take same channelization codes adopt the SPS pattern to take subframe, and promptly each UE is respectively at each repetition period T RepIn to take length be L RepDifferent subframes, on the subframe that takies, send or receive business information.
Fig. 1 is the distribution method flow chart of mobile communication resources provided by the invention.
As shown in Figure 1, this method comprises:
Step 101 preestablishes the occupancy thresholding that all UE that take the same channelization codes resource take subframe altogether.
Step 102, all UE that determine to take current channelization code resource take the occupancy of subframe altogether.
Step 103, whether the occupancy that determining step 102 is determined surpasses the respective threshold that step 101 is set, if, execution in step 104, otherwise keep repetition period T RepAnd length L RepConstant, process ends.
Step 104 changes repetition period T RepPerhaps length L RepValue, the occupancy that makes all UE take current channelization code resource take subframe altogether is no more than described thresholding.
Occupancy among Fig. 1 is a repetition period T RepIn take subframe and this repetition period T that all UE of same channelization codes resource take altogether RepThe ratio of all interior subframes.
In step 102～104, network side receives the access request of UE, judge after this UE takies current channelization code resource, whether all UE that take current channelization code resource take the occupancy of subframe altogether above described thresholding, if, adjust the SPS pattern of current channelization code resource, promptly change repetition period T RepPerhaps length L RepValue, the repetition period T after utilize changing RepPerhaps length L RepFor all UE that take current channelization code resource redistribute subframe.
Network side specifically inserts the next frame of finishing the place frame from this UE, utilizes the repetition period T after changing RepPerhaps length L RepFor all UE that take current channelization code resource redistribute subframe, comprise the repetition period T after changing RepInformation or length L RepInformation issue UE by physical control channel, UE is according to the repetition period T after changing RepPerhaps length L RepTake corresponding subframe, on this subframe, send or receive business information.
In adjusting current channelization code resource process, promptly insert the next frame of finishing the place frame, the repetition period T after all sending change to all UE that take current channelization code resource from this UE RepInformation or length L RepInformation before, other UE of request access network side are assigned on other channelization code resource except that current channelization code resource.
The thresholding that is provided with in the step 101 generally includes Upper threshold and Lower Threshold, also can only comprise Upper threshold or Lower Threshold, described change repetition period T RepPerhaps length L RepValue comprise:
The occupancy that takies subframe altogether at all UE that take current channelization code resource increases repetition period T during more than or equal to Upper threshold RepValue or reduce repeat length L RepValue; When the occupancy that takies subframe altogether at all UE that take current channelization code resource is less than or equal to Lower Threshold, reduce repetition period T RepValue or increase repeat length L RepValue.
When the channelization code resource of mobile communication system comprises two or more channel codes, if a plurality of UE request access networks are arranged in same subframe, then judge successively according to predefined procedure whether the subframe occupancy that has new UE to insert each channel code of back surpasses predetermined threshold, the UE of request access network is linked into new UE access back subframe occupancy successively above on the channel code of predetermined threshold, if all channel codes are after having new UE to insert, subframe occupancy separately all surpasses predetermined threshold, then UE is linked on each channel code according to described predefined procedure, and to carrying out SPS pattern reprovision owing to newly inserted the channel code that UE causes the subframe occupancy to surpass predetermined threshold.
The mobile communication resources that provides with system comprises two kinds of channel codes below, and the L in the SPS pattern RepValue is that a sub-frame length is an example, and the present invention is changed repetition period T RepThe method of value describe.
Be collectively referred to as Resource Block RU for channel code and the time slot of a UE in each sub-frame allocation i jWherein, i and j are natural numbers, represent the numbering of channel code and the numbering of subframe respectively, when i one regularly, promptly at each channel code, all that take this channel code are enlivened the ratio that subframe that UE takies altogether all takies in the subframes and are called the occupancy that all UE that take this channel code take subframe under this channel code, for example, as repetition period T RepValue be 4 sub-frame lengths, L RepWhen value is a sub-frame length, have 3 if take the UE one of first channel code, the occupancy that all UE that then take this first channel code take subframe is 75%.The UE that enlivens wherein is meant the UE that is in the Cell_DCH attitude.
With repetition period T RepValue be N sub-frame length, L RepValue is that a sub-frame length SPS pattern is called the 1/N pattern, and the 1st～N subframe under first Resource Block in each repetition period is numbered RU respectively 1 0～RU 1 N-1, L wherein RepValue and T RepThe ratio of value is called frame and divides weights.The Upper threshold and the Lower Threshold of subframe occupancy are set in base station (NodeB), and this Upper threshold and Lower Threshold can pass through the network management system reprovision, below respectively with Upper threshold be 75%, to be limited to 25% be that example describes in the Xiamen.
When UE access network side, what suppose that UE that this request inserts takies is first channel code, if NodeB judges the subframe occupancy of first channel code and is greater than or equal to Upper threshold, then NodeB starts at the downward reprovision process of the SPS pattern of this first channel code, with the SPS pattern reprovision of first channel code is that frame divides weights littler sending mode, is 1/8 from 1/4 pattern reprovision for example.Particularly, NodeB indicates the UE that inserts on first channel code to use frame to divide weights littler SPS pattern by physical control channel, and each UE is according to originally at a repetition period T RepIn the subframe numbering that takies, take the repetition period T behind the reprovision successively RepInterior subframe.
Fig. 2 be first channel code the subframe occupancy more than or equal to before the Upper threshold and mobile communication resources afterwards distribute schematic diagram.
As shown in Figure 2, RU wherein (1) represents first channel code, RU (2) expression second channel sign indicating number.Before the SPS pattern of RU (1) is carried out downward reprovision, the repetition period T of RU (1) and RU (2) RepValue all be 4 sub-frame lengths, repeat length L RepAll be 1 sub-frame length, take each repetition period T on the RU (1) RepThe UE of interior the 1st, 2 and 3 subframe is respectively UE1, UE3 and UE5, takies each repetition period T on the RU (2) RepIn the UE of the 1st, 2 and 3 subframe be respectively UE2, UE4 and UE6, when UE7 request access network side, after NodeB judges UE7 and takies RU (1), if do not change repetition period T RepValue, will cause the subframe occupancy of RU (1) to reach 100%, surpass preset upper limit value 75%, so NodeB starts the SPS pattern reprovision process of RU (1), specifically comprise: next subframe of the subframe that UE5 is taken is distributed to UE7, and with repetition period T RepValue change to 8 sub-frame lengths, UE1, UE3 and UE5 take the 1st, 2 and 3 subframe of the repetition period after the change respectively, the SPS pattern that RU (2) goes up UE remains unchanged.
Suppose the request deviated from network UE takies is RU (1), if judging the subframe occupancy of RU (1), NodeB behind this UE deviated from network, will be less than or equal to Lower Threshold, then NodeB starts SPS pattern at this RU (1) the reprovision process that makes progress, with the SPS pattern reprovision of RU (1) is that frame divides weights bigger sending mode, is 1/4 from 1/8 pattern reprovision for example.Particularly, NodeB indicates the UE that inserts on first Resource Block to use frame to divide weights bigger SPS pattern by physical control channel, and each UE is according to originally at a repetition period T RepIn the subframe numbering that takies, take the repetition period T behind the reprovision successively RepInterior subframe.
Fig. 3 is that the subframe occupancy of RU (1) is less than or equal to before the Upper threshold and mobile communication resources afterwards distributes schematic diagram.
As shown in Figure 3, before the SPS pattern to RU (1) makes progress reprovision, the repetition period T of RU (1) and RU (2) RepValue all be 8 sub-frame lengths, repeat length L RepAll be 1 sub-frame length, take each repetition period T on the RU (1) RepThe UE of interior the 1st and 2 subframe is respectively UE1 and UE3, takies each repetition period T on the RU (2) RepThe UE of interior the 1st and 2 subframe is respectively UE2 and UE4, when UE3 request deviated from network side, after NodeB judges the UE3 deviated from network, if do not change repetition period T RepValue, will cause the subframe occupancy of RU (1) to reach 12.5%, less than predetermined lower limit value 25%, so NodeB starts the upwards reprovision process of the SPS pattern of first channel code, specifically comprises: with repetition period T RepValue change to 4 sub-frame lengths, UE1 takies the 1st subframe of the repetition period after the change, the SPS pattern that takies the UE of second channel code block remains unchanged.
In SPS pattern reprovision process, if receive the access request of UE, then this UE is linked on the channel code channel code in addition that carries out SPS pattern reprovision, for example, in Fig. 2, if in the SPS of first channel code pattern reprovision process, UE8 request access network is arranged again, then UE8 is linked on the second channel sign indicating number.
The present invention changes length L RepThe method of value and change repeat length T RepThe method of value is similar, for example, and in Fig. 3, if do not change repeat length T RepValue, then can be with length L RepValue change two sub-frame lengths into, to changing length L RepThe method of value repeats no more herein.
By the present invention, can make the mobile communication resources under the SPS pattern improve resource utilization, for example with customer service state dynamic assignment, when any active ues more after a little while, can be the more resources of user's dynamic assignment, improve user's throughput, reduce time delay, improve user's impression, when any active ues more for a long time, can be reduced to the resource that each user distributes in right amount, the number of users that the raising system can hold.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.

Claims (6)

1. the distribution method of a mobile communication resources is characterized in that, described mobile communication resources comprises subframe and channelization code resource, and the UE that takies the same channelization codes resource is at repetition period T RepIn to take length be L RepSubframe, L wherein RepBe not more than T Rep, this method comprises:
Preestablish the occupancy thresholding that all UE that take the same channelization codes resource take subframe altogether, all UE that determine to take current channelization code resource take the occupancy of subframe altogether, when the occupancy of determining surpasses described thresholding, by changing repetition period T RepPerhaps length L RepValue, the occupancy that makes all UE take current channelization code resource take subframe altogether is no more than described thresholding;
Described occupancy is a repetition period T RepIn take subframe and this repetition period T that all UE of same channelization codes resource take altogether RepThe ratio of all interior subframes.
2. method according to claim 1 is characterized in that,
Plural UE is by taking the multiplexing identical subframe of different channel codes.
3. method according to claim 2 is characterized in that, this method comprises:
Network side receives the access request of UE, judge after this UE takies current channelization code resource, whether all UE that take current channelization code resource take the occupancy of subframe altogether above described thresholding, if, insert the next frame of finishing the place frame from this UE, utilize the repetition period T after changing RepPerhaps length L RepFor all UE that take current channelization code resource redistribute subframe.
4. method according to claim 3 is characterized in that, describedly comprises for all UE that take current channelization code resource redistribute subframe:
Repetition period T after network side will change RepInformation or length L RepInformation issue UE by physical control channel, UE is according to the repetition period T after changing RepPerhaps length L RepTake corresponding subframe, on this time interval resource, send or receive business information.
5. method according to claim 4 is characterized in that, inserts the next frame of finishing the place frame, the repetition period T after all sending change to all UE that take current channelization code resource from this UE RepInformation or length L RepInformation before, other UE of request access network side are assigned on other channelization code resource except that current channelization code resource.
6. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that,
Described thresholding comprises Upper threshold and Lower Threshold; Described change repetition period T RepPerhaps length L RepValue comprise:
The occupancy that takies subframe altogether at all UE that take current channelization code resource increases repetition period T during more than or equal to Upper threshold RepValue or reduce length L RepValue;
When the occupancy that takies subframe altogether at all UE that take current channelization code resource is less than or equal to Lower Threshold, reduce repetition period T RepValue or increase length L RepValue.
CN2010101459810A 2010-04-09 2010-04-09 Method for allocating mobile communication resources Pending CN102215578A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103167552A (en) * 2011-12-16 2013-06-19 鼎桥通信技术有限公司 Semi-static physical resource dynamic coordinating method and scheduler

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CN101312589A (en) * 2007-05-21 2008-11-26 中兴通讯股份有限公司 Method for dynamic regulating repeated cycle of following special physical channel
CN101677466A (en) * 2008-09-19 2010-03-24 大唐移动通信设备有限公司 Method and apparatus for semi-persistent scheduling
WO2010031470A1 (en) * 2008-09-17 2010-03-25 Panasonic Corporation Semi-persistent scheduled resource release procedure in a mobile communication network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101047438A (en) * 2007-03-27 2007-10-03 中兴通讯股份有限公司 Method for transceiving MBMS data using reframe in TD-SCDMA
CN101312589A (en) * 2007-05-21 2008-11-26 中兴通讯股份有限公司 Method for dynamic regulating repeated cycle of following special physical channel
WO2010031470A1 (en) * 2008-09-17 2010-03-25 Panasonic Corporation Semi-persistent scheduled resource release procedure in a mobile communication network
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103167552A (en) * 2011-12-16 2013-06-19 鼎桥通信技术有限公司 Semi-static physical resource dynamic coordinating method and scheduler
CN103167552B (en) * 2011-12-16 2015-09-16 鼎桥通信技术有限公司 Semi-static physical resource dynamic coordinate method and scheduler

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Application publication date: 20111012