The content of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of data transfer based on carrier aggregationMethod and device.
A kind of data transmission method based on carrier aggregation, methods described includes：
Network side decision-making is the user equipment (UE) for supporting carrier aggregation CA using more than two carrier unitsAt least one carrier units are chosen when sending same data, in the carrier units more than described two to transmitThe same data；
What is sent in the network lateral UE instructions at least one carrier units is same data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
The network side indicates at least one carrier units by Downlink Control Information DCI to the UEMiddle transmission is same data；
Or, the network side indicates described at least one to carry by Downlink Control Information DCI to the UEWhat is sent in ripple unit is same data, and, during same data are at least one carrier unitsCertain carrier units data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
The network side is believed by the descending control in each carrier units at least one carrier unitsIdentical specific fields in breath DCI are same to what is sent in UE instruction at least one carrier unitsThe data of sample；
Or, the network side is by descending in each carrier units at least one carrier unitsIdentical specific fields in control information DCI indicate to be sent at least one carrier units to the UEBe same data, and, the same data are certain loads at least one carrier unitsThe data of ripple unit.
Used as a kind of implementation, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
The network side chooses a carrier units at least one carrier units and sends multiple DCI,It is same data with indicate to send at least one carrier units；
Or, the network side chooses a carrier units at least one carrier units and sends multipleDCI, is same data with indicate to send at least one carrier units, and, it is described sameData be certain carrier units at least one carrier units data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
When at least one carrier units include more than two carrier units, the network side is described sameMultiple DCI is sent on carrier units belonging to the data of sample, with indicating at least one carrier unitsWhat other carrier units sent is the same data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
The network side is indicated by the control unit MAC CE of specific medium education to the UEWhat is sent at least one carrier units is same data；
Or, the network side is by the control unit MAC CE of specific medium education to describedWhat is sent in UE instructions at least one carrier units is same data, and, same data are institutesState the data of certain carrier units at least one carrier units.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier unitsWhat is sent is same data, including：
The network side indicates at least one carrier wave list by specific configuration signal message to the UEWhat is sent in unit is same data；
Or, the network side indicates described at least one by specific configuration signal message to the UEWhat is sent in carrier units is same data, and, same data are at least one carrier unitsIn certain carrier units data.
A kind of data transmission method based on carrier aggregation, methods described includes：
User equipment (UE) receives the configured information that network side sends；
The UE determines the data transmitted in the multiple carrier units in polymerization carrier wave according to the instruction messageIt is identical.
Used as a kind of implementation, methods described also includes：
During the UE determines that the same data are the multiple carrier units according to the instruction messageThe data of certain carrier units.
Used as a kind of implementation, the UE is demodulated to the data of the multiple carrier units, works as solutionRecall a carrier units data it is correct when, not other carrier units in the multiple carrier units of re-demodulationData.
As a kind of implementation, after the UE demodulates the data of the multiple carrier units, institute is only chosenThe correct data of demodulation result stated in multiple carrier units are used, and to the network side feedback dataReceive correct；In the multiple carrier units during data correct without demodulation result, fed back to the network sideData reception errors.
A kind of data transmission device based on carrier aggregation, described device includes：Decision package, select unit,Transmission unit and indicating member, wherein：
Decision package, sends same for decision-making using the UE that more than two carrier units are support CAData；
Select unit, for choosing at least one carrier units in the carrier units more than described two；
Transmission unit, for transmitting the same data using at least one carrier units；
Indicating member, for being same to what is sent in UE instruction at least one carrier unitsData.
Used as a kind of implementation, the indicating member is additionally operable to by Downlink Control Information DCI to describedWhat is sent in UE instructions at least one carrier units is same data；
Or, indicate to be sent out at least one carrier units to the UE by Downlink Control Information DCIWhat is sent is same data, and, same data are certain carrier waves at least one carrier unitsThe data of unit.
Used as a kind of implementation, the indicating member is additionally operable to by least one carrier unitsThe identical specific fields in Downlink Control Information DCI in each carrier units indicate described to the UEWhat is sent at least one carrier units is same data；
Or, by the Downlink Control Information in each carrier units at least one carrier unitsIdentical specific fields in DCI are same to what is sent in UE instruction at least one carrier unitsData, and, the same data are certain carrier units at least one carrier unitsData.
Used as a kind of implementation, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, the indicating member is additionally operable to be selected at least one carrier unitsTake carrier units and send multiple DCI, be same with indicate transmission at least one carrier unitsData；
Or, multiple DCI is sent for choosing a carrier units at least one carrier units,It is same data with indicate to send at least one carrier units, and, the same dataIt is the data of certain carrier units at least one carrier units.
Used as a kind of implementation, the indicating member, being additionally operable at least one carrier units includes twoDuring the carrier units of the individual above, multiple DCI is sent on the carrier units belonging to the same data, withIndicate that other carrier units at least one carrier units send is all the same data.
Used as a kind of implementation, the indicating member is additionally operable to the control by specific medium educationUnit MAC CE processed are described same to what is sent in UE instruction at least one carrier unitsData；
Or, indicated to the UE by the control unit MAC CE of specific medium education describedWhat is sent at least one carrier units is same data, and, same data are described at least oneThe data of certain carrier units in carrier units.
Used as a kind of implementation, the indicating member is additionally operable to by specific configuration signal message to instituteState that UE indicates to send at least one carrier units is same data；
Or, by specific configuration signal message in UE instruction at least one carrier unitsWhat is sent is same data, and, same data are certain loads at least one carrier unitsThe data of ripple unit.
A kind of data transmission device based on carrier aggregation, described device includes：Receiving unit and determining unit,Wherein：
Receiving unit, the instruction message for receiving network side transmission；
Determining unit, for being determined to be transmitted in the multiple carrier units in polymerization carrier wave according to the instruction messageData it is identical.
As a kind of implementation, the determining unit, be additionally operable to according to the instruction message judge whetherIndicate the data that the same data are certain carrier units.
Used as a kind of implementation, described device also includes：
Demodulating unit, is demodulated for the data to the multiple carrier units, when demodulating a carrier waveWhen the data of unit are correct, not in the multiple carrier units of re-demodulation other carrier units data.
Used as a kind of implementation, described device also includes：
Feedback unit is chosen, for after the data that the demodulating unit demodulates the multiple carrier units, onlyThe correct data of demodulation result chosen in the multiple carrier units are used, and anti-to the network sideFeedback data receiver is correct；In the multiple carrier units during data correct without demodulation result, to the networkSide feedback data receives mistake.
In the technical scheme of the embodiment of the present invention, when network side decision-making is UE using more than two carrier unitsWhen sending same data, at least one carrier units are chosen from more than two carrier units and sends sameThe data of sample, and need to by indicate message to UE indicate at least one carrier units send be same numberAccording to, and the identical data are the data of certain carrier units at least one carrier units.So,UE is after receiving and indicating message, you can it is determined that transmitted in multiple carrier units in polymerization carrier wave for sameData, when the data for demodulating a carrier units are correct, not in the multiple carrier units of re-demodulationThe data of other carrier units.Using technical scheme so that UE is obtained in that mono- better than CAThe transmission performance of individual carrier units, can be used to evade the application scenarios such as co-channel interference, lifting cell-edge performance.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawingsRealization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used forLimit the embodiment of the present invention.
It is the downlink data for overcoming the weak covering of LTE cell edges present in prior art and co-channel interference to bringThe problem of transmission reliability difference, the embodiment of the present invention provides a kind of data transmission method based on carrier aggregation,Including：Decision-making CA in base station will transmit same data using multiple carrier units, and transmission is CAThe data of certain carrier units, base station indicates UE, and what is issued in many carrier units of CA is same data,And can be explicitly indicated be certain specific carriers unit data.UE indicates to judge many of CA according to base stationWhat is received in carrier units is identical data, and judge whether to specify be which carrier units data.The multiple carrier units data of UE demodulation, only choose the correct data of demodulation result and use, and anti-to base stationFeedback data receiver is correct.If without the correct data of demodulation result, to base station feedback Data reception errors.
Below by way of specific example, the essence of the technical scheme of embodiment that the present invention is furture elucidated.
Fig. 1 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention one, such asShown in Fig. 1, the data transmission method based on carrier aggregation of this example is comprised the following steps：
Step 101, network side decision-making is that the UE for supporting CA sends same using more than two carrier unitsData.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present inventionIllustrated as a example by standing, be not for limiting protection scope of the present invention.
When base station decision-making needs to use multiple carrier units for the same data of UE transmissions, it is necessary in UEPolymerization carrier wave in carried out data transmission from some channel qualities preferably channel, and non-selected all polymerizationsCarrier wave carries out data transmission, and now, the data that the multiple carrier waves selected by base station send are on certain carrier waveData, these data are identical datas.
Step 102, network side chooses at least one carrier units hair in the carrier units more than described twoSend the same data.
In the embodiment of the present invention, base station is based on UE to measurement result of carrier units etc., for UE institutes it is trueChannel quality more preferably carrier units transmission data are chosen in fixed polymerization carrier units.For UE determines biography, it is necessary to relevant information is notified into UE after the carrier units of transmission of data.
Step 103, what is sent in the network lateral UE instructions at least one carrier units is sameData.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
Base station is by Downlink Control Information (DCI, Downlink Control Information) to the UEIndicate to send at least one carrier units is same data；Or, except indicate described at leastWhat is sent in one carrier units is that outside same data, it is at least one load also to indicate same dataThe data of certain carrier units in ripple unit.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
Base station is by identical specific in the DCI in each carrier units at least one carrier unitsField is same data to what is sent in UE instruction at least one carrier units；Or, removeWhat is sent in instruction at least one carrier units is outside same data, also indicate same data to beThe data of certain carrier units at least one carrier units.The specific fields are indicated including carrier waveDomain (CIF, Carrier Indicator Field) field.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
Base station chooses a carrier units at least one carrier units and sends multiple DCI, to indicateWhat is sent at least one carrier units is same data；Or, except indicating described at least oneWhat is sent in carrier units is that outside same data, it is at least one carrier wave list also to indicate same dataThe data of certain carrier units in unit.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
When at least one carrier units are two or more, base station is in the carrier wave belonging to the same dataMultiple DCI is sent on unit, to indicate what other carrier units at least one carrier units sentAll it is the same data.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
Base station by the control unit MAC CE of specific medium education to the UE indicate described in extremelyWhat is sent in few carrier units is same data；Or, except indicating at least one carrier wave listWhat is sent in unit is also to indicate outside same data during same data are at least one carrier unitsThe data of certain carrier units.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of networkWhat is sent in individual carrier units is same data, including：
Base station indicates to be sent out at least one carrier units by specific configuration signal message to the UEWhat is sent is same data；Or, it is same except indicate to send at least one carrier unitsOutside data, the data that same data are certain carrier units at least one carrier units are also indicated.
In the embodiment of the present invention, base station can also indicate UE using other modes, in multiple carrier unitsWhat is issued is same data, and is the data of which specific carriers unit.
Fig. 2 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention two, such asShown in Fig. 2, the data transmission method based on carrier aggregation of this example is comprised the following steps：
Step 201, UE receives the instruction message that network side sends.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present inventionIllustrated as a example by standing, be not for limiting protection scope of the present invention.
In the embodiment of the present invention, base station sends to UE and indicates message, can specifically be accomplished in the following manner.
Base station can indicate UE by DCI, and what is issued in multiple carrier units is same data, andIt is the data of which specific carriers unit.
Base station uses the specific fields in DCI, such as multi-carrier indicator (CIF, Carrier Indicator Field)During indicating, each carrier units for issuing same data has DCI to be handed down to same UE, in DCICarry identical CIF fields indicate be which specific carriers unit data, and be shown to be same data.
When base station issues multiple DCI to indicate using same carrier units, can be in the load belonging to dataTransmission multiple DCI on ripple unit, the DCI of the affiliated carrier units of data are referred to by the particular value of certain fieldShow, what is transmitted on other carrier units is also the same data of this carrier units.
Base station can indicate UE by specific MAC CE, and what is issued in multiple carrier units is sameData, and be the data of which specific carriers unit.Which carrier units is identified in MAC CE isData etc..
Base station can indicate UE by specific configuration signal message, and what is issued in multiple carrier units is sameThe data of sample, and be the data of which specific carriers unit.
Base station can also indicate UE using other modes, and what is issued in multiple carrier units is same numberAccording to, and be the data of which specific carriers unit.
What base station can only indicate to issue in many carrier units of UE is identical data, and it is which to be not required to instructionThe data of individual specific carriers unit.
Step 202, UE is according to the instruction message, it is determined that being transmitted in multiple carrier units in polymerization carrier waveData it is identical.
UE is according to the DCI for issuing of base station, or MAC CE, or configuration signal message, Huo ZheqiIts information, judge to transmit in multiple carrier units is same data, and whether also judge to indicate isThe data of which specific carriers unit.
During the data of the multiple carrier units of UE demodulation, if there is the correct data of demodulation result, other transmissionThe data of the carrier units of identical data can be without re-demodulation.
After the data of the multiple carrier units of UE demodulation, only choose the correct data of demodulation result and use, andIt is correct to base station feedback data receiver.If without the correct data of demodulation result, to base station feedback data receiverMistake.
Technical scheme according to embodiments of the present invention, when network side decision-making is using more than two carrier unitsWhen UE sends same data, the transmission of at least one carrier units is chosen from more than two carrier unitsSame data, and need to by indicate message to UE indicate at least one carrier units send be sameData, and the identical data are the data of certain carrier units at least one carrier units.ThisSample, UE receive indicate message after, you can it is determined that polymerization carrier wave in multiple carrier units in transmit beSame data, when the data for demodulating a carrier units are correct, not the multiple carrier wave list of re-demodulationThe data of other carrier units in unit.Using technical scheme so that UE is obtained in that better than CAThe transmission performance of single carrier wave unit, can be used to evade the applied fields such as co-channel interference, lifting cell-edge performanceScape.
Fig. 3 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention threeFigure, as shown in figure 3, the data transmission device based on carrier aggregation of this example includes decision package 30, choosingUnit 31, transmission unit 32 and indicating member 33 are selected, wherein：
Decision package 30, it is same for user equipment (UE) sends using more than two carrier units for decision-makingData；
Select unit 31, for choosing at least one carrier units in the carrier units more than described two；
Transmission unit 32, for transmitting the same data using at least one carrier units；
Indicating member 33, for being same to what is sent in UE instruction at least one carrier unitsData.
Indicating member 33, is additionally operable to indicate described at least one to the UE by Downlink Control Information DCIWhat is sent in carrier units is same data；
Or, indicate to be sent out at least one carrier units to the UE by Downlink Control Information DCIWhat is sent is same data, and, same data are certain carrier waves at least one carrier unitsThe data of unit.
Used as a kind of implementation, indicating member 33 is additionally operable to by every at least one carrier unitsIdentical specific fields in Downlink Control Information DCI in one carrier units to the UE indicate described in extremelyWhat is sent in few carrier units is same data；
Or, by the Downlink Control Information in each carrier units at least one carrier unitsIdentical specific fields in DCI are same to what is sent in UE instruction at least one carrier unitsData, and, the same data are certain carrier units at least one carrier unitsData.Here, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, indicating member 33 is additionally operable to be chosen at least one carrier unitsOne carrier units send multiple DCI, are same with indicate transmission at least one carrier unitsData；
Or, multiple DCI is sent for choosing a carrier units at least one carrier units,It is same data with indicate to send at least one carrier units, and, the same dataIt is the data of certain carrier units at least one carrier units.
As a kind of implementation, indicating member 33, in the carrier units belonging to the same dataUpper transmission multiple DCI, be all with indicate other carrier units at least one carrier units to sendThe same data.
Used as a kind of implementation, indicating member 33 is additionally operable to the control by specific medium educationUnit MAC CE are same data to what is sent in UE instruction at least one carrier units；
Or, indicated to the UE by the control unit MAC CE of specific medium education describedWhat is sent at least one carrier units is same data, and, same data are described at least oneThe data of certain carrier units in carrier units.
Used as a kind of implementation, indicating member 33 is additionally operable to by specific configuration signal message to describedWhat is sent in UE instructions at least one carrier units is same data；
Or, by specific configuration signal message in UE instruction at least one carrier unitsWhat is sent is same data, and, same data are certain loads at least one carrier unitsThe data of ripple unit.
In the technical scheme of the embodiment of the present invention, when network side decision-making is UE using more than two carrier unitsWhen sending same data, at least one carrier units are chosen from more than two carrier units and sends sameThe data of sample, and need to by indicate message to UE indicate at least one carrier units send be same numberAccording to, and the identical data are the data of certain carrier units at least one carrier units.So,UE is after receiving and indicating message, you can it is determined that transmitted in multiple carrier units in polymerization carrier wave for sameData, when the data for demodulating a carrier units are correct, not in the multiple carrier units of re-demodulationThe data of other carrier units.Using technical scheme so that UE is obtained in that mono- better than CAThe transmission performance of individual carrier units, can be used to evade the application scenarios such as co-channel interference, lifting cell-edge performance.
It will be appreciated by those skilled in the art that above-mentioned each unit realizes that function can refer to foregoing embodimentsAssociated description based on the data transmission method of carrier aggregation and understand.The function of above-mentioned each unit can be by fortuneRow is realized in the program in processing module, can also realized by specific logic circuit.Such as above-mentioned decision-makingUnit 30, select unit 31 etc. can be realized by FPGA, microprocessor and DSP, the He of transmission unit 32Indicating member can be realized by antenna system.
Fig. 4 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention threeFigure, as shown in figure 4, the data transmission device based on carrier aggregation of this example includes：Receiving unit 40With determining unit 41, wherein：
Receiving unit 40, the instruction message for receiving network side transmission；
Determining unit 41, for according to it is described instruction message judge be polymerized carrier wave in multiple carrier units inTransmission is same data.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present inventionIllustrated as a example by standing, be not for limiting protection scope of the present invention.
In the embodiment of the present invention, base station sends to UE and indicates message, can specifically be accomplished in the following manner.
Base station can indicate UE by DCI, and what is issued in multiple carrier units is same data, andIt is the data of which specific carriers unit.
Base station uses the specific fields in DCI, such as multi-carrier indicator (CIF, Carrier Indicator Field)During indicating, each carrier units for issuing same data has DCI to be handed down to same UE, in DCICarry identical CIF fields indicate be which specific carriers unit data, and be shown to be same data.
When base station issues multiple DCI to indicate using same carrier units, can be in the load belonging to dataTransmission multiple DCI on ripple unit, the DCI of the affiliated carrier units of data are referred to by the particular value of certain fieldShow, what is transmitted on other carrier units is also the same data of this carrier units.
Base station can indicate UE by specific MAC CE, and what is issued in multiple carrier units is sameData, and be the data of which specific carriers unit.Which carrier units is identified in MAC CE isData etc..
Base station can indicate UE by specific configuration signal message, and what is issued in multiple carrier units is sameThe data of sample, and be the data of which specific carriers unit.
Base station can also indicate UE using other modes, and what is issued in multiple carrier units is same numberAccording to, and be the data of which specific carriers unit.
What base station can only indicate to issue in many carrier units of UE is identical data, and it is which to be not required to instructionThe data of individual specific carriers unit.
In the embodiment of the present invention, the determining unit 41 is additionally operable to determine whether to refer to according to the instruction messageShow that the same data are the data of certain carrier units.
On the basis of the data transmission device based on carrier aggregation shown in Fig. 4, this example based on carrier waveThe data transmission device of polymerization also includes：
Demodulating unit (not shown in Fig. 4), is demodulated for the data to the multiple carrier units, whenDemodulate a carrier units data it is correct when, not other carrier wave lists in the multiple carrier units of re-demodulationThe data of unit.
On the basis of the data transmission device based on carrier aggregation shown in Fig. 4, this example based on carrier waveThe data transmission device of polymerization also includes：
Feedback unit (not shown in Fig. 4) is chosen, for demodulating the multiple carrier wave list in the demodulating unitAfter the data of unit, the correct data of demodulation result only chosen in the multiple carrier units are used, andReceive correct to the network side feedback data；Without the correct data of demodulation result in the multiple carrier unitsWhen, receive mistake to the network side feedback data.
It will be appreciated by those skilled in the art that above-mentioned each unit realizes that function can refer to foregoing embodimentsAssociated description based on the data transmission method of carrier aggregation and understand.The function of above-mentioned each unit can be by fortuneRow is realized in the program in processing module, can also realized by specific logic circuit.It is defined aboveThe grade of unit 41 can realize that the grade of receiving unit 40 can be by aerial system by FPGA, microprocessor and DSPUnite and realize etc..
Using the technical scheme of the embodiment of the present invention, compared with prior art, on multiple carrier units of CATransmission is identical data, and UE receives the data of multiple carrier units, after demodulation, therefrom have selected oneOptimal result.Using the transmission performance being obtained in that the invention enables UE better than CA single carrier wave units,Can be used to evade the scenes such as co-channel interference, lifting cell-edge performance.
Between technical scheme described in the embodiment of the present invention, in the case where not conflicting, can be in any combination.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine,Can realize by another way.Apparatus embodiments described above are only schematical, for example,The division of the unit, only a kind of division of logic function, can there is other division side when actually realizingFormula, such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features canTo ignore, or do not perform.In addition, the coupling or straight each other of shown or discussed each partConnect coupling or communication connection can be the INDIRECT COUPLING or communication connection of equipment or unit by some interfaces,Can be electrical, machinery or other forms.
It is above-mentioned as separating component illustrate unit can be or may not be it is physically separate, asThe part that unit shows can be or may not be physical location, you can positioned at a place, also may be usedTo be distributed on multiple NEs；Part or all of unit therein can be according to the actual needs selectedRealize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing listIn unit, or each unit is individually as a unit, it is also possible to two or more unit collectionInto in a unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardPart adds the form of SFU software functional unit to realize.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited toThis, any one skilled in the art the invention discloses technical scope in, can readily occur inChange or replacement, should all be included within the scope of the present invention.