CN101984715A - Method and device for controlling auxiliary carrier of double carriers - Google Patents
Method and device for controlling auxiliary carrier of double carriers Download PDFInfo
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- CN101984715A CN101984715A CN2010105409064A CN201010540906A CN101984715A CN 101984715 A CN101984715 A CN 101984715A CN 2010105409064 A CN2010105409064 A CN 2010105409064A CN 201010540906 A CN201010540906 A CN 201010540906A CN 101984715 A CN101984715 A CN 101984715A
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- 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
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Abstract
The invention discloses a method and a device for controlling an auxiliary carrier of double carriers. The method comprises the following steps: a scheduler of a base station acquires a data amount to be sent corresponding to a terminal within a designated time, wherein the terminal is a dual-carrier terminal; the scheduler determines a control mode on the auxiliary carrier of the terminal according to the data amount, and the control mode comprises: activating the auxiliary carrier and deactivating the auxiliary carrier; and the scheduler controls the auxiliary carrier according to the determined control mode. The invention solves the problem that the system performance is influenced by additional network control overhead due to the frequent transmission of HS-SCCH order in the relevant technology and at the same time, saves wireless resources and reduces consumption of the battery power of the terminal.
Description
Technical field
The present invention relates to the downstream data traffic field in the 3G (Third Generation) Moblie technology, in particular to a kind of method and apparatus that the auxilliary carrier wave of two carrier waves is controlled.
Background technology
At WCDMA (Wireless Code Division Multiple Access, the wireless code division multiple address access) HSDPA (the High Speed Downlink Packet Access in, the high speed downlink packet access) in the technology, the major-minor ZAP that relates to DC (Dual Carrier/Dual Cell, two carrier waves).The R8 agreement has been introduced FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) double small district (carrier wave) HSDPA function in March, 2009, and the peak rate of user equipment (UE) is brought up to 2 * 21.6M=43.2M.
In order to improve user's throughput, DC-HSDPA carries out data simultaneously by two adjacent carriers and transmits.For supporting two carrier wave UE, descending two sub-districts, a Serving cell and an auxilliary Serving cell, up still sub-district, Serving cell has corresponding up channel, and auxilliary Serving cell does not have corresponding up channel.Serving cell has and the identical ability in former single carrier HSDPA sub-district, in the auxilliary Serving cell, only be useful on the physical channel that the HSDPA transmission needs, be CPICH (Common Pilot Channel, Common Pilot Channel), HS-PDSCH (Physical Downlink Shared Channel, the Physical Downlink Shared Channel Physical Downlink Shared Channel) and HS-SCCH (SharingControl Channel, shared control channel).
When RNC (Radio Network Controller, radio network controller) side waits that the UE data volume of sending out is big, adopt major-minor sub-district to send simultaneously, can bring very big gain like this; And the data volume that need send as UE if UE is in auxilliary Serving cell and activates down, will be brought unnecessary Radio Resource expense when fewer like this, and this moment can be with the auxilliary Serving cell deexcitation of UE, thereby saves the battery power consumption of UE.Because under the situation that auxilliary Serving cell activates, UE need consume more power from two sub-district receiving downlinks.When the UE up-link power is limited, if being in auxilliary Serving cell, UE activates down, this moment also can be with the auxilliary Serving cell deexcitation of UE.Auxilliary Serving cell activation deactivating operation in the correlation technique is that the order (HS-SCCH order) by High-Speed Shared Control Channel is notified to UE, can bring additional network control expense yet send HS-SCCH order continually, influences the performance of system.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and apparatus that the auxilliary carrier wave of two carrier waves is controlled, to solve the above-mentioned problem that HS-SCCH order brings additional network control expense that sends continually at least.
According to an aspect of the present invention, provide a kind of method that the auxilliary carrier wave of two carrier waves is controlled, having comprised: the scheduler of base station obtains the to be sent data volume corresponding with terminal in the fixed time, and wherein, terminal is two carrier terminals; This scheduler determines that according to data volume wherein, this control mode comprises to the control mode of the auxilliary carrier wave of terminal: activate the auxilliary carrier wave of auxilliary carrier wave and deexcitation; This scheduler is controlled auxilliary carrier wave according to the control mode of determining.
According to a further aspect in the invention, provide a kind of device that the auxilliary carrier wave of two carrier waves is controlled, having comprised: the data volume acquisition module, be used to obtain the to be sent data volume corresponding in the fixed time with terminal, wherein, terminal is two carrier terminals; The control mode determination module, the data volume that is used for obtaining according to the data volume acquisition module determines that wherein, this control mode comprises to the control mode of the auxilliary carrier wave of terminal: activate the auxilliary carrier wave of auxilliary carrier wave and deexcitation; Control module, the control mode that is used for determining according to above-mentioned control mode determination module is controlled auxilliary carrier wave.
By the present invention, adopt the data volume of at the appointed time interior statistics terminal, start the control command of assisting carrier wave according to statistics, solved correlation technique and brought additional network control expense because of sending HS-SCCH order continually, influence the problem of systematic function.By control, saved Radio Resource and saved the battery power consumption of terminal simultaneously the auxilliary carrier wave of terminal.
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 method flow diagram of controlling according to the auxilliary carrier wave to two carrier waves of the embodiment of the invention 1;
Fig. 2 is the method flow diagram of controlling according to the auxilliary carrier wave to two carrier waves of the embodiment of the invention 2;
Fig. 3 is the structured flowchart of the device controlled according to the auxilliary carrier wave to two carrier waves of the embodiment of the invention 3.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention is primarily aimed at the auxilliary carrier wave of two carrier terminals and controls, in order to save the battery power consumption of Radio Resource and saving UE.Wherein, two carrier terminals refer to support the terminal of two ZAP.The embodiment of the invention is mainly by under appropriate condition, and the scheduler of base station (Node b) sends the auxilliary Serving cell of HSSCCH order order activation UE, and then the auxilliary carrier wave of control UE.Based on this, provide a kind of method and apparatus that the auxilliary carrier wave of two carrier waves is controlled.
Fig. 1 shows the method flow diagram of controlling according to the auxilliary carrier wave to two carrier waves of the embodiment of the invention, and this method may further comprise the steps:
Step S102, the scheduler of base station obtain the to be sent data volume corresponding with terminal in the fixed time, and wherein, terminal is two carrier terminals;
Wherein, the length of fixed time can rule of thumb be set, and for example sets the fixed time for specifying the dispatching cycle of number (500), and be 2ms the dispatching cycle of scheduler usually.Based on this, scheduler obtain data volume process can for: this scheduler statistics specify in the dispatching cycle of number with terminal corresponding cache district in the number of times of data to be sent is arranged; Determine that according to this number of times the to be sent data volume corresponding with terminal accounts for the whole statistics ratio of dispatching cycle.
Preferably, the statistic processes of above-mentioned number of times is as follows:
Scheduler determines that the buffer area of the to be sent data corresponding with terminal is N, and wherein, N is the integer more than or equal to 1; Scheduler is provided with number of times St for each buffer area, t=1, and 2 ..., N; Wherein, the initial value of St is 0; In each dispatching cycle of the dispatching cycle of specifying number, scheduler travels through each buffer area, determines whether each buffer area has data, if having, the number of times St of correspondence is added 1, if do not have, St is constant.
And the definite of data volume can have dual mode, and mode one is: when the number of dispatching cycle reached appointment number T, the base station was calculated the non-NULL corresponding with terminal and is compared γ
t=St/T is with γ
tIn maximum as the non-NULL ratio that to be sent data volume number of times arranged corresponding with terminal.
Mode two is: when the number of dispatching cycle reached appointment number T, scheduler calculated the non-NULL corresponding with terminal and compares γ
t=St/T is to γ
tCarry out smoothing processing, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t, wherein, the α value is 0.1, γ
pInitial value be 1, with γ
pIn maximum as the non-NULL ratio that to be sent data volume number of times arranged corresponding with terminal.
For the situation of N=1, above-mentioned γ
tOr γ
pThe number of value will be 1, at this moment, γ
tOr γ
pIn maximum be γ
tOr γ
pSelf.
Step S104, scheduler determines that according to data volume wherein, control mode comprises to the control mode of the auxilliary carrier wave of terminal: activate the auxilliary carrier wave of auxilliary carrier wave and deexcitation;
If data volume is less than first set point, and the auxilliary carrier wave of terminal is in state of activation, and scheduler determines that the control mode to the auxilliary carrier wave of terminal is the auxilliary carrier wave of deexcitation;
If data volume is more than or equal to second set point, and the auxilliary carrier wave of terminal is in deactivation status, and scheduler determines that control mode to the auxilliary carrier wave of terminal is for activating auxilliary carrier wave;
If data volume is greater than first set point, and less than second set point, scheduler determines that the control mode to the auxilliary carrier wave of terminal is that auxilliary carrier wave remains unchanged;
Wherein, first set point is less than second set point.The size of first set point and second set point can rule of thumb be set.
Step S106, this scheduler is controlled above-mentioned auxilliary carrier wave according to the control mode of determining.
Concrete control is as follows: when control mode is the auxilliary carrier wave of deexcitation, scheduler sends the auxilliary carrier commands of deexcitation by High-Speed Shared Control Channel to terminal, after terminal receives the auxilliary carrier commands of deexcitation, stop auxilliary carrier wave behind the first appointment Transmission Time Interval (TTI) and receive data; Control mode is when activating auxilliary carrier wave, and scheduler sends to terminal by High-Speed Shared Control Channel and activates auxilliary carrier commands, and after terminal received and activates auxilliary carrier commands, second specified and start auxilliary carrier wave behind the TTI and receive data.Wherein, the individual number with second an appointment TTI of first appointment can be identical, for example all is 4 TTI.
Mentioned order can be realized by HSSCCH order.
The data volume of statistics terminal started the control command of assisting carrier wave according to statistics in present embodiment passed through at the appointed time, had solved correlation technique and had brought additional network control expense because of sending HS-SCCHorder continually, influenced the problem of systematic function.By control, saved Radio Resource and saved the battery power consumption of terminal simultaneously the auxilliary carrier wave of terminal.
Embodiment 2
Present embodiment provides a kind of auxilliary carrier wave to two carrier waves to carry out control method, and this method can realize that these modules can be arranged on the base station by following module, and the module that is specifically related to is as follows:
1) scheduler module of HSDPA scheduler;
2) the HSDPCCH demodulation module of HSDPA scheduler;
3) algoritic module of HSDPA scheduler;
The scheduler module of scheduler can judge in the 2ms scheduling at first whether the HSSCCH order cycle that sends the auxilliary carrier wave activation of DC arrives, satisfy if send the HSSCCHorder cycle, will judge whether carrier wave is assisted in the needs deexcitation to this DC UE according to the respective algorithms that algoritic module provides; Satisfy if send the condition of the auxilliary carrier wave of HSSCCH order deexcitation, then the scheduler module of scheduler can send the auxilliary accordingly carrier wave of HSSCCH order order notice UE deexcitation to this UE and receive data.
UE receives after the mentioned order whether to have received the HSSCCHorder order to the scheduler feedback, and stops the Data Receiving of auxilliary carrier wave in the corresponding moment.
After the HSDPCCH of scheduler demodulation module was received the feedback information of UE, if the UE response is positive feedback information, then scheduler can stop the data transmission of auxilliary carrier wave; If what UE responded is negative-feedback information, show that the UE side correctly do not receive HSSCCHorder, then scheduler can resend this HSSCCH order next Transmission Time Interval (Transmission Time Interval abbreviates TTI as) and orders.The corresponding auxilliary Serving cell that activates UE also is corresponding handling process.
Referring to Fig. 2, the method that the auxilliary carrier wave of two carrier waves is controlled mainly comprises following step:
Step S202, scheduler are that each formation of UE is provided with a variable St and is used to write down the number of times that this formation has data.
Step S204, judges in each formation of UE whether data are arranged, if do not have data, execution in step S206 at every 2ms dispatching cycle; If data are arranged, execution in step S208; Repeating step S204 finishes the calculating of St until all formations; After statistics St finishes, execution in step S210;
Step S206, the St value remains unchanged, i.e. St=St;
Step S208 has data, St=St+1 in the current queue;
Step S210, scheduler judge whether the number of times of dispatching cycle reaches T time, if, execution in step S212 if not, does not then need UE is produced the HS-SCCH order that is used for auxilliary carrier wave activation and deexcitation, after arrive in next dispatching cycle, return step S204;
Step S212 calculates the statistic MaxRp of UE, and St is put 0;
Step S214 judges whether to satisfy MaxRp＜k
l, and the auxilliary carrier wave activation of UE, if, execution in step S216; If not, execution in step S218;
Step S216 sends the auxilliary carrier commands of deexcitation UE, for example sends the HS-SCCH order that is used for the auxilliary carrier wave of deexcitation;
Step S218 judges whether to satisfy MaxRp＞kp, and the auxilliary carrier wave deexcitation of UE, if, execution in step S220; If not, return step S204;
Step S220 sends and activates the auxilliary carrier commands of UE, for example sends the HS-SCCH order that is used to activate auxilliary carrier wave;
After step S216 and the step S220, execution in step S222 finishes current control cycle, enters next control cycle, i.e. T dispatching cycle.
During actual the realization, have a plurality of sub-districts below the scheduler, need all sub-districts under this scheduler of traversal this moment, and find each DPA UE under each sub-district to be cached with the number of times St of data among the Que in period T, the non-NULL that obtains each priority query of UE compares γ
t=S
t/ T, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t(the α value is 0.1), γ
pInitial value be 1, St is re-set as 0, the maximum Max γ of the duty ratio after sliding of making even
p
As Max γ
pLess than k
l, and the auxilliary carrier wave of UE is when being in state of activation, and explanation this moment data volume of UE in a period of time is fewer, and can fall this moment with assisting the carrier wave deexcitation, and scheduler need produce the HS-SCCH order that is used for the auxilliary carrier wave of deexcitation, otherwise changes step G over to;
As Max γ
pBe greater than or equal to k
h, and the auxilliary carrier wave of UE illustrate that the data volume of UE is bigger in period T when being in unactivated state, can activate auxilliary carrier wave by sending the order order, scheduler need produce and be used to activate the HS-SCCH order that assists carrier wave, otherwise changes step H over to;
As Max γ
pDo not satisfy condition when above-mentioned, auxilliary carrier wave keeps original state constant, and scheduler will not produce HS-SCCH order and be used for auxilliary carrier wave is activated or deexcitation.
According to above judgement, send the order of the auxilliary carrier wave of activation or deexcitation, notice UE handles accordingly.When UE received HSSCCH order and can correctly solve, UE can produce positive feedback information and give scheduler, and stopped or starting the Data Receiving of auxilliary carrier wave in certain moment; When UE can not correctly solve HSSCCH order, at this moment can produce negative-feedback information and give scheduler, at this moment UE does not carry out any processing.
After scheduler sends HSSCCH order, can receive the feedback information of UE at 6 TTI.If what the base station solved the UE response is positive feedback information, then scheduler can stop the scheduling of auxilliary carrier wave simultaneously, the auxilliary carrier wave deexcitation of UE; If what the base station solved that UE responds is negative-feedback information, then scheduler can retransmit this HSSCCH order order, and maximum retransmission is 3, surpass 3 times after scheduler can lose this bag.
Finished a complete handling process this moment.
The relevant parameter value: T gets 500, even can be longer;
k
l=15%, k
h=60% (k
l, k
hWhat all be provided with is lower, can be in two carrier wave states of activation so that UE is easier, thereby guarantee that UE can have higher speed).
Describe with the next two carrier wave UE scheduling in a sub-district below: parameter T=500 is set, k
l=15%, k
h=60%;
The first step: owing to the scheduler schedules cycle is 2ms, so when each 2ms, write down the number of times St that data are arranged in this pair carrier wave UE Que buffer area, i.e. St=St+1;
Second step: judge when every 2ms whether the T cycle arrive, arrive, enter function DPAALGO_SecondCellActiveOrNot this moment and judge whether two carrier wave UE satisfy and send HSSCCH order and activate the condition that carrier wave is assisted in deexcitation if satisfy the T cycle;
Concrete operations: travel through all sub-districts under this scheduler, and find under each sub-district each two carrier wave UE to be cached with the number of times St of data among the Que in period T, the non-NULL that obtains each priority query of UE compares γ
t=S
t/ T, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t(the α value is 0.1), γ
pInitial value be 1, St is re-set as 0, the maximum Max γ of the duty ratio after sliding of making even
p
The 3rd step: as Max γ
pLess than k
l, and the auxilliary carrier wave of two carrier wave UE is when being in state of activation, and the data volume of explanation this moment two carrier wave UE in a period of time is fewer, and can fall this moment with assisting the carrier wave deexcitation, and scheduler need produce the HS-SCCHorder that is used for the auxilliary carrier wave of deexcitation;
The 4th step: as Max γ
pBe greater than or equal to k
h, and the auxilliary carrier wave of two carrier wave UE illustrate that the data volume of two carrier wave UE in period T is bigger when being in unactivated state, can activate auxilliary carrier wave by sending the order order, scheduler need produce and be used to activate the HS-SCCH order that assists carrier wave;
The 5th step: as Max γ
pWhen not satisfying condition with λ, auxilliary carrier wave keeps original state constant, and scheduler will not produce HS-SCCH order and be used for auxilliary carrier wave is activated or deexcitation;
The 6th step: according to above judgement, send the order order of the auxilliary carrier wave of activation or deexcitation, the two carrier wave UE of notice handle accordingly.When two carrier wave UE received HSSCCHorder and can correctly solve, two carrier wave UE can produce positive feedback information and give the base station, and stopped or starting the Data Receiving of auxilliary carrier wave behind 4 TTI; When UE can not correctly solve HSSCCH order, at this moment can produce negative-feedback information and give the base station, at this moment two carrier wave UE do not carry out any processing.
The 7th step: after scheduler sends HSSCCH order, can receive the feedback information of UE at 6 TTI.If what the base station solved two carrier wave UE responses is positive feedback information, scheduler can stop the scheduling of auxilliary carrier wave simultaneously, the auxilliary carrier wave deexcitation of two carrier wave UE; If what the base station solved two carrier wave UE responses is negative-feedback information, then scheduler can retransmit this HSSCCH order order, and maximum retransmission is 3.Scheduler can be lost this order bag after surpassing 3 times.
The 8th step: after keeping the 1s end cycle, return the first step and begin the execution that circulates repeatedly.
Adopt the method for present embodiment, can activate the auxilliary carrier dispatching of the two carrier wave UE of deexcitation by HSSCCH order, obtained the progress that the CPC technology is used in the DC-HSDPA of 3-G (Generation Three mobile communication system), the base station can adopt the data of two carrier waves or single carrier to send according to the size of data volume, can save the down transmitting power of base station and the battery power consumption of saving UE like this, improve the HSPA systematic function.
Embodiment 3
Fig. 3 shows the structured flowchart of the device of controlling according to the auxilliary carrier wave to two carrier waves of the embodiment of the invention, this device can be arranged on the scheduler of base station, and this device comprises: data volume acquisition module 32, control mode determination module 34 and control module 36; Each functions of modules is as follows:
Data volume acquisition module 32 is used to obtain the to be sent data volume corresponding with terminal in the fixed time, and wherein, terminal is two carrier terminals;
Control mode determination module 34 links to each other with data volume acquisition module 32, and the data volume that is used for obtaining according to data volume acquisition module 32 determines that wherein, control mode comprises to the control mode of the auxilliary carrier wave of terminal: activate the auxilliary carrier wave of auxilliary carrier wave and deexcitation;
Wherein, the length of fixed time can rule of thumb be set, and for example sets the fixed time for specifying the dispatching cycle of number (500), and be 2ms the dispatching cycle of base station usually.Based on this, data volume acquisition module 32 comprises: the number of times statistic unit is used for adding up the number of times that data to be sent were arranged with terminal corresponding cache district in the dispatching cycle of specifying number; Determining unit is used for determining that according to the number of times of number of times statistic unit statistics the to be sent data volume corresponding with terminal accounts for the whole statistics ratio of dispatching cycle.
Preferably, the number of times statistic unit comprises: subelement is set, is used for determining that the buffer area of the to be sent data corresponding with terminal is N, wherein, N is the integer more than or equal to 1; And for each buffer area is provided with number of times St, t=1,2 ..., N; Wherein, the initial value of St is 0; Count sub-element was used for traveling through each buffer area in each dispatching cycle of the dispatching cycle of specifying number, determined whether each buffer area has data, if having, the number of times St of correspondence was added 1, if do not have, St is constant.
In the present embodiment really order unit can realize by following dual mode:
Mode one: determining unit comprises: first computation subunit is used for calculating the non-NULL corresponding with terminal and comparing γ when the number of dispatching cycle reaches appointment number T
t=St/T; First determines subelement, is used for γ
tIn maximum as the non-NULL ratio that to be sent data volume arranged corresponding with terminal.
Mode two: determining unit comprises: second computation subunit, be used for when the number of dispatching cycle reaches appointment number T, and the base station is calculated the non-NULL corresponding with terminal and is compared γ
t=St/T; The smoothing processing subelement is used for γ
tCarry out smoothing processing, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t, wherein, the α value is 0.1, γ
pInitial value be 1; Second determines subelement, is used for γ
pIn maximum as the non-NULL ratio that to be sent data volume arranged corresponding with terminal.
Based on the above-mentioned data volume of obtaining, control mode determination module 34 comprises:
The first control mode determining unit, if be used for data volume less than first set point, and the auxilliary carrier wave of terminal is in state of activation, determines that the control mode to the auxilliary carrier wave of terminal is the auxilliary carrier wave of deexcitation;
The second control mode determining unit, if be used for data volume more than or equal to second set point, and the auxilliary carrier wave of terminal is in deactivation status, determines that control mode to the auxilliary carrier wave of terminal is for activating auxilliary carrier wave;
The 3rd control mode determining unit if be used for data volume greater than first set point, and less than second set point, determines that the control mode to the auxilliary carrier wave of terminal is that auxilliary carrier wave remains unchanged;
Wherein, first set point is less than second set point.
The above-mentioned parameter value: T gets 500, even can be longer; First set point=15%, the second set point=60%.Wherein, it is low that first set point and second set point can all be provided with, and make like this that terminal is easier to be in two carrier wave states of activation, thereby the assurance terminal can have higher speed.
After control mode is determined, control module 36 control of will be correlated with, for example: when control mode was the auxilliary carrier wave of deexcitation, control module 36 was assisted carrier commands by High-Speed Shared Control Channel to terminal transmission deexcitation.After terminal receives the auxilliary carrier commands of deexcitation, stop auxilliary carrier wave behind the first appointment TTI and receive data; When control mode was assisted carrier wave for activating, control module 36 sent to terminal by the high speed signaling control channel and activates auxilliary carrier commands.After terminal receives and activates auxilliary carrier commands, start auxilliary carrier wave behind the second appointment TTI and receive data.Wherein, the individual number with second an appointment TTI of first appointment can be identical, for example all is 4 TTI.
The data volume of statistics terminal started the control command of assisting carrier wave according to statistics in present embodiment passed through at the appointed time, had solved correlation technique and had brought additional network control expense because of sending HS-SCCHorder continually, influenced the problem of systematic function.By control, saved Radio Resource and saved the battery power consumption of terminal simultaneously the auxilliary carrier wave of terminal.
As can be seen from the above description, the present invention mainly assists the transmission frequency of carrier commands by the control activation, and then make the control of auxilliary carrier wave is more optimized, at Radio Resource with save on the basis of battery power consumption of terminal, also can take into account terminal can have higher speed.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
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 (13)
1. the method that the auxilliary carrier wave of two carrier waves is controlled is characterized in that, comprising:
The scheduler of base station obtains the to be sent data volume corresponding with terminal in the fixed time, and wherein, described terminal is two carrier terminals;
Described scheduler determines that according to described data volume wherein, described control mode comprises: activate the described auxilliary carrier wave of described auxilliary carrier wave and deexcitation to the control mode of the auxilliary carrier wave of described terminal;
Described scheduler is controlled described auxilliary carrier wave according to the described control mode of determining.
2. method according to claim 1 is characterized in that, the scheduler of described base station obtains the interior to be sent data volume corresponding with terminal of fixed time and comprises:
The scheduler of described base station is being specified the number of times that data to be sent were arranged in the statistics and described terminal corresponding cache district in the dispatching cycle of number;
Determine that according to described number of times the have to be sent data volume corresponding with described terminal accounts for the whole statistics ratio of dispatching cycle.
3. method according to claim 2 is characterized in that, the scheduler of described base station has the number of times of data to be sent to comprise in the statistics and described terminal corresponding cache district specifying in the dispatching cycle of number:
The scheduler of described base station determines that the buffer area of the to be sent data corresponding with described terminal is N, and wherein, N is the integer more than or equal to 1;
Described scheduler is provided with number of times St for each buffer area, t=1, and 2 ..., N; Wherein, the initial value of St is 0;
In each dispatching cycle of the dispatching cycle of specifying number, described scheduler travels through each buffer area, determines whether each buffer area has data, if having, the number of times St of correspondence is added 1, if do not have, St is constant.
4. method according to claim 3 is characterized in that, determines corresponding with described terminal to have data volume to be sent to account for whole ratio of adding up dispatching cycle to comprise according to described number of times:
When the number of dispatching cycle reached appointment number T, the scheduler of described base station calculated the non-NULL corresponding with described terminal and compares γ
t=St/T is with described γ
tIn maximum as the non-NULL ratio of the number of times that to be sent data volume arranged corresponding with described terminal.
5. method according to claim 3 is characterized in that, determines corresponding with described terminal to have data volume to be sent to account for whole ratio of adding up dispatching cycle to comprise according to described number of times:
When the number of dispatching cycle reached appointment number T, the scheduler of described base station calculated the non-NULL corresponding with described terminal and compares γ
t=St/T is to γ
tCarry out smoothing processing, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t, wherein, the α value is 0.1, γ
pInitial value be 1, with described γ
pIn maximum as the non-NULL ratio of the number of times that to be sent data volume arranged corresponding with described terminal.
6. according to each described method of claim 1-5, it is characterized in that described scheduler is determined the control mode of the auxilliary carrier wave of described terminal is comprised according to described data volume:
If described data volume is less than first set point, and the auxilliary carrier wave of described terminal is in state of activation, and described scheduler determines that the control mode to the auxilliary carrier wave of described terminal is the described auxilliary carrier wave of deexcitation;
If described data volume is more than or equal to second set point, and the auxilliary carrier wave of described terminal is in deactivation status, and described scheduler determines that control mode to the auxilliary carrier wave of described terminal is for activating described auxilliary carrier wave;
If described data volume is greater than described first set point, and less than described second set point, described scheduler determines that the control mode to the auxilliary carrier wave of described terminal is that described auxilliary carrier wave remains unchanged;
Wherein, described first set point is less than described second set point.
7. according to each described method of claim 1-5, it is characterized in that described scheduler is controlled described auxilliary carrier wave according to the described control mode of determining and comprised:
When described control mode is the described auxilliary carrier wave of deexcitation, described scheduler sends the described auxilliary carrier commands of deexcitation by High-Speed Shared Control Channel to described terminal, after described terminal receives the described auxilliary carrier commands of deexcitation, behind first an appointment Transmission Time Interval TTI, stop described auxilliary carrier wave and receive data;
Described control mode is when activating described auxilliary carrier wave, described base station dispatcher sends to described terminal by described High-Speed Shared Control Channel and activates described auxilliary carrier commands, after described terminal receives and activates described auxilliary carrier commands, behind second an appointment TTI, start described auxilliary carrier wave and receive data.
8. the device that the auxilliary carrier wave of two carrier waves is controlled is characterized in that, comprising:
The data volume acquisition module is used to obtain the to be sent data volume corresponding with terminal in the fixed time, and wherein, described terminal is two carrier terminals;
The control mode determination module, the data volume that is used for obtaining according to described data volume acquisition module determines that wherein, described control mode comprises: activate the described auxilliary carrier wave of described auxilliary carrier wave and deexcitation to the control mode of the auxilliary carrier wave of described terminal;
Control module is used for according to the described control mode that described control mode determination module is determined described auxilliary carrier wave being controlled.
9. device according to claim 8 is characterized in that, described data volume acquisition module comprises:
The number of times statistic unit is used for adding up the number of times that data to be sent were arranged with described terminal corresponding cache district in the dispatching cycle of specifying number;
Determining unit is used for determining that according to the described number of times of described number of times statistic unit statistics the have to be sent data volume corresponding with described terminal accounts for the whole statistics ratio of dispatching cycle.
10. device according to claim 9 is characterized in that, described number of times statistic unit comprises:
Subelement is set, is used for determining that the buffer area of the to be sent data corresponding with described terminal is N, wherein, N is the integer more than or equal to 1; And for each buffer area is provided with number of times St, t=1,2 ..., N; Wherein, the initial value of St is 0; Count sub-element was used for traveling through each buffer area in each dispatching cycle of the dispatching cycle of specifying number, determined whether each buffer area has data, if having, the number of times St of correspondence was added 1, if do not have, St is constant.
11. device according to claim 10 is characterized in that, described determining unit comprises:
First computation subunit is used for calculating the non-NULL corresponding with described terminal and comparing γ when the number of dispatching cycle reaches appointment number T
t=St/T;
First determines subelement, is used for described γ
tIn maximum as the non-NULL ratio that to be sent data volume arranged corresponding with described terminal.
12. device according to claim 10 is characterized in that, described determining unit comprises:
Second computation subunit is used for when the number of dispatching cycle reaches appointment number T, and described base station is calculated the non-NULL corresponding with described terminal and compared γ
t=St/T;
The smoothing processing subelement is used for γ
tCarry out smoothing processing, level and smooth non-NULL afterwards compares γ
p=(1-α) γ
p+ α γ
t, wherein, the α value is 0.1, γ
pInitial value be 1;
Second determines subelement, is used for described γ
pIn maximum as the non-NULL ratio that to be sent data volume arranged corresponding with described terminal.
13. each described device is characterized in that according to Claim 8-12, described control mode determination module comprises:
The first control mode determining unit, if be used for described data volume less than first set point, and the auxilliary carrier wave of described terminal is in state of activation, determines that the control mode to the auxilliary carrier wave of described terminal is the described auxilliary carrier wave of deexcitation;
The second control mode determining unit, if be used for described data volume more than or equal to second set point, and the auxilliary carrier wave of described terminal is in deactivation status, determines that control mode to the auxilliary carrier wave of described terminal is for activating described auxilliary carrier wave;
The 3rd control mode determining unit if be used for described data volume greater than described first set point, and less than described second set point, determines that the control mode to the auxilliary carrier wave of described terminal is that described auxilliary carrier wave remains unchanged;
Wherein, described first set point is less than described second set point.
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