CN102369763A - Frequency discrimination acquiring method, apparatus and device controlled by automatic frequency - Google Patents
Frequency discrimination acquiring method, apparatus and device controlled by automatic frequency Download PDFInfo
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- CN102369763A CN102369763A CN2011800015285A CN201180001528A CN102369763A CN 102369763 A CN102369763 A CN 102369763A CN 2011800015285 A CN2011800015285 A CN 2011800015285A CN 201180001528 A CN201180001528 A CN 201180001528A CN 102369763 A CN102369763 A CN 102369763A
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- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
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- H03J7/02—Automatic frequency control
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Abstract
The embodiment of the invention provides a frequency discrimination result acquiring method, an apparatus and a device controlled by an automatic frequency. The method comprises the steps of acquiring the frequency discrimination results of a plurality of cells corresponding to a user device from a plurality of frequency discrimination modules, wherein, the plurality of cells are the corresponding cells from which the user device can receive data, and comprise the service cell of the user device; acquiring the frequency discrimination results controlled by the automatic frequency according to the relationship of the moving speed of the user device and the preset threshold value and the frequency discrimination results of the plurality of cells. By employing the technical scheme of the embodiment of the invention, the communication stability of an HSPA system and the data transmission performance can be improved effectively.
Description
Technical field
The embodiment of the invention relates to communication technical field, and the frequency discrimination that relates in particular to the control of a kind of automatic frequency is acquisition methods, device and equipment as a result.
Background technology
High-speed packet inserts (High Speed Packet Access; Hereinafter to be referred as HSPA) system is WCDMA (Wideband Code Division Multiple Access; Hereinafter to be referred as WCDMA) upgrading of system, with respect to (the DedicatePhysical Channel of the DPCH in the WCDMA system; Hereinafter to be referred as DPCH) mainly be to have increased high-speed physical downlink shared channel (HS-PDSCH) (High Speed-Physical Downlink Shared Channel; Hereinafter to be referred as HS-PDSCH) to support high speed business.Like this, just there are two dedicated channels in the HSPA system, a DPCH, and one is HS-PDSCH.DPCH supports soft hand-off, in the corresponding soft switching process, because subscriber equipment (User Equipment; Hereinafter to be referred as UE) keep simultaneously communicating by letter with a plurality of sub-districts of network side, and all identical with the Content of Communication of each sub-district.UE does to merge to the reception data of these a plurality of sub-districts usually and handles to obtain gain.Adopt following frequency detection mode to support above-mentioned soft handover particularly: automatic frequency control (the Auto Frequency Control of UE side; Hereinafter to be referred as AFC) equipment will be wherein the frequency discrimination result that obtains of frequency discriminator block merge frequency discrimination result as AFC equipment.Frequency discriminator block in AFC equipment corresponding UE respectively can receive the sub-district of data.The sub-district of the corresponding UE of each frequency discriminator block.Wherein the corresponding frequency discriminator block in each sub-district in the AFC equipment specifically is used to obtain the frequency deviation of the data frequency of UE reception with respect to this data frequency of this sub-district transmission, and this frequency departure comprises the local frequency difference and the Doppler frequency deviation of UE and base station, place, this sub-district.Wherein Doppler frequency deviation is meant that there are caused by relative motion in UE and this antenna in cell, and UE received data frequency and sent data frequency with this sub-district and have deviation this moment.And the UE speed of related movement is fast more, and Doppler frequency deviation is big more.Relative velocity is just (like UE near the sub-district time), and Doppler frequency deviation is also for just.The Doppler frequency deviation that relative velocity causes for negative (when for example UE is away from the sub-district) is negative.
In realizing process of the present invention; The inventor finds to exist at least in the prior art following problem: in the frequency discrimination scheme of above-mentioned support soft handover, the UE side is not considered the translational speed of UE, and directly in AFC, the frequency discrimination result of all sub-districts is done merging; For example when the UE relative moving speed is big; Doppler frequency deviation can have a strong impact on the reception of HS-PDSCH in the HSPA system, thereby influences the HSPA systematic function, causes that communication stability is lower, data transmission performance is lower.
Summary of the invention
The frequency discrimination that the embodiment of the invention provides the control of a kind of automatic frequency is acquisition methods, device and equipment as a result; In order to not consider the translational speed of UE in the soft switching process that solves HSPA system in the prior art, cause the defective that HSPA system communication stability is lower, data transmission performance is lower.
The frequency discrimination that the embodiment of the invention provides the control of a kind of automatic frequency is acquisition methods as a result, comprising:
From a plurality of frequency discriminator block, obtain the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district, comprises the Serving cell of said subscriber equipment in said a plurality of sub-districts;
Be obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts.
The frequency discrimination that the embodiment of the invention provides the control of a kind of automatic frequency is deriving means as a result, comprising:
First acquisition module is used for obtaining from a plurality of frequency discriminator block the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district, comprises the Serving cell of said subscriber equipment in said a plurality of sub-districts;
Second acquisition module is used for being obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts.
The embodiment of the invention also provides a kind of auto frequency control apparatus, and the frequency discrimination that comprises the control of a plurality of frequency discriminator block, automatic frequency is deriving means, loop filter, processing module and VCXO as a result;
Said a plurality of frequency discriminator block is used to obtain the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district; The Serving cell that comprises said subscriber equipment in said a plurality of sub-district;
The frequency discrimination of said automatic frequency control is deriving means as a result, and the frequency discrimination result of the said a plurality of sub-districts that are used for getting access to according to said a plurality of frequency discriminator block and the magnitude relationship of said moving user equipment and predetermined threshold value are obtained from the frequency discrimination result that dynamic frequency is controlled;
Said loop filter is used for the frequency discrimination result of the frequency discrimination of the said automatic frequency control deriving means said automatic frequency control of obtaining is as a result carried out filtering;
Said processing module is used for obtaining a magnitude of voltage according to the frequency discrimination result of the filtered said automatic frequency control of said loop filter;
Said VCXO is used for producing corresponding frequency oscillator signal according to the said magnitude of voltage that said processing module is obtained, and said frequency oscillator signal is as the clock source of said subscriber equipment operate as normal.
The frequency discrimination of the automatic frequency control of the embodiment of the invention is acquisition methods, device and equipment as a result, through from a plurality of frequency discriminator block, obtaining the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district, comprises the Serving cell of said subscriber equipment in said a plurality of sub-districts; Be obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts.Changed and do not considered moving user equipment in the prior art, caused that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of the embodiment of the invention; Considered moving user equipment in the soft switching process; And can obtain the frequency discrimination result of automatic frequency control accurately according to the magnitude relationship of moving user equipment and predetermined threshold value, can improve the communication stability and the data transmission performance of HSPA system effectively; Thereby also can greatly improve the experience of subscriber equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the AFC equipment of prior art;
The frequency discrimination of the automatic frequency control that Fig. 2 provides for one embodiment of the invention is the flow chart of acquisition methods as a result;
The frequency discrimination of the automatic frequency control that Fig. 3 provides for another embodiment of the present invention is the flow chart of acquisition methods as a result;
The frequency discrimination of the automatic frequency control that Fig. 4 provides for one embodiment of the invention is the structural representation of deriving means as a result;
The frequency discrimination of the automatic frequency control that Fig. 5 provides for another embodiment of the present invention is the structural representation of deriving means as a result;
The structural representation of the auto frequency control apparatus that Fig. 6 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The DPCH channel is supported soft hand-off, and UE can keep communicating by letter with a plurality of sub-districts of network side through DPCH simultaneously, and all identical with the Content of Communication of each sub-district.UE can carry out frequency discrimination to each sub-district of soft handover, then these frequency discriminations result is merged as final frequency discrimination result, for example is exactly to adopt this frequency detection mode to support soft handover in the WCDMA system.In the HSPA system, when using HS-PDSCH, DPCH also exists simultaneously, and this moment, DPCH mainly was used for transmitting signaling and power control command.When the UE translational speed is low; The mode that adopts above-mentioned frequency discrimination result to merge also has gain; But when the translational speed of UE was higher, because the HS-PDSCH that adopts in the HSPA system does not support soft hand-off, synchronization UE only communicated with a sub-district (being current service cell).When the UE high-speed mobile; The Doppler frequency deviation that the UE high-speed mobile is brought will cause the frequency deviation of UE and Serving cell bigger; And because HS-PDSCH follow-up service sub-district; The mode that adopt above-mentioned frequency discrimination result to merge this moment can not brought any gain to system, can have a strong impact on the HS-PDSCH communication performance on the contrary, causes that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of the following embodiment of the invention can head it off.
Fig. 1 is the structural representation of the AFC equipment of prior art.As shown in Figure 1, the AFC equipment of prior art can comprise a plurality of frequency discriminator block 1, merge module 2, loop filter 3, processing module 4 and VCXO (Voltage-controlled Crystal oscillator; Hereinafter to be referred as VCXO) 5.
At soft switching process, adopt AFC equipment shown in Figure 1 that the receive frequency of UE is adjusted in the UE side in the prior art, so that strengthen data transmission performance, raising soft handover efficient.As shown in Figure 1, each frequency discriminator block 1 corresponding sub-district.A plurality of frequency discriminator block 1 corresponding UE respectively can receive a plurality of sub-districts of data.Each frequency discriminator block 1 is used to obtain frequency departure that respective cell sends data frequency and preset receive frequency as the frequency discrimination result.Merge module 2 and be connected with a plurality of frequency discriminator block 1 respectively, merge module 2 and be used for the frequency discrimination result that a plurality of frequency discriminator block 1 obtain is merged the frequency discrimination result as AFC.Loop filter 3 with merge module 2 and be connected, the frequency discrimination result that loop filter 3 is used to be combined the AFC that module 2 processing obtain carries out Filtering Processing.Processing module 4 is connected with loop filter 3, and processing module 4 is used for obtaining a magnitude of voltage according to the frequency discrimination result of the AFC after loop filter 3 Filtering Processing.For example processing module 4 can be earlier with current frequency addition as pre-stored in the frequency discrimination result's of the AFC after the Filtering Processing frequency departure and the processing module 4, obtain adjusted frequency.The current frequency of this pre-stored is last adjusted frequency.It is a magnitude of voltage that processing module 4 also is used for adjusted frequency map.VCXO5 is connected with processing module 4, and the magnitude of voltage that VCXO5 is used for obtaining according to processing module 4 produces corresponding frequency oscillator signal, and this frequency oscillator signal is as the clock source of UE operate as normal.
In the above-mentioned prior art, do not consider the translational speed of UE, and the frequency discrimination result of a plurality of sub-districts that this UE is corresponding merges directly.For example from the UE high-speed mobile process of connected state (carrying out voice or data transmission service), because the existence of Doppler frequency deviation, for example UE straight line between two sub-district A and B moves; This moment, UE was 700Hz to the Doppler frequency deviation frequency discrimination result of sub-district A; The Doppler frequency deviation frequency discrimination result of the relative sub-district B of UE is-700Hz that the result of merging is that the frequency discrimination result of AFC is 0, thereby causes VCXO not adjust; Cause data transmission performance lower, soft handover efficient is lower.
The frequency discrimination of the AFC that Fig. 2 provides for one embodiment of the invention is the flow chart of acquisition methods as a result.The frequency discrimination of the AFC of the present embodiment executive agent of acquisition methods as a result is the frequency discrimination deriving means as a result of an AFC.The frequency discrimination of this AFC deriving means as a result can be arranged in the AFC equipment of UE side.As shown in Figure 2, the frequency discrimination of the AFC of present embodiment is acquisition methods as a result, specifically can comprise as follows:
100, from a plurality of frequency discriminator block, obtain the frequency discrimination result of the corresponding a plurality of sub-districts of UE;
Wherein these a plurality of sub-districts are that UE can receive the data corresponding district, comprise in wherein a plurality of sub-districts that the Serving cell of UE and the non-service cell of this UE are the adjacent area of UE.Wherein a plurality of frequency discriminator block in the present embodiment are corresponding one by one with a plurality of sub-districts.The transmission data frequency that each frequency discriminator block can be obtained a sub-district is the frequency discrimination result with the frequency departure of preset receive frequency.
101, obtain the frequency discrimination result of AFC according to the frequency discrimination result of the magnitude relationship of the translational speed of UE and predetermined threshold value and a plurality of sub-districts.
The frequency discrimination of the AFC of present embodiment is acquisition methods as a result, through from a plurality of frequency discriminator block, obtaining the frequency discrimination result of the corresponding a plurality of sub-districts of UE; Obtain the frequency discrimination result of AFC according to the frequency discrimination result of the magnitude relationship of the translational speed of UE and predetermined threshold value and a plurality of sub-districts.Changed the translational speed of not considering UE in the prior art, caused that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of present embodiment; Considered the translational speed of UE in the soft switching process and can obtain the frequency discrimination result of AFC accurately, can improve the communication stability and the data transmission performance of HSPA system effectively according to the translational speed of UE and the magnitude relationship of predetermined threshold value; Thereby also can greatly improve the experience of UE.
Alternatively, also comprise before or between 100 and 101 at 100 of the foregoing description: confirm the translational speed of UE and the magnitude relationship of predetermined threshold value.For example can detect the translational speed of UE in UE through a speed detector is set.
The frequency discrimination of the AFC that Fig. 3 provides for another embodiment of the present invention is the flow chart of acquisition methods as a result.Enforcement embodiment shown in Figure 3 on above-mentioned basis embodiment illustrated in fig. 2, the further technical scheme of the illustrated in detail embodiment of the invention.As shown in Figure 3, the frequency discrimination of the AFC of present embodiment is acquisition methods as a result, specifically can comprise as follows:
200, from a plurality of frequency discriminator block, obtain the frequency discrimination result of the corresponding a plurality of sub-districts of UE; Carry out 201;
Whether the translational speed of 201, judging UE is more than or equal to predetermined threshold value; When the translational speed of confirming UE during more than or equal to predetermined threshold value, carry out 202, otherwise when the translational speed of confirming UE during less than predetermined threshold value, execution 203;
Wherein 200 and 201 can not have sequencing.
202, from the frequency discrimination result of a plurality of sub-districts, obtain the frequency discrimination result of Serving cell; Carry out 204;
203, the frequency discrimination result with a plurality of sub-districts merges the frequency discrimination result as AFC;
204, with the frequency discrimination result of Serving cell frequency discrimination result as AFC;
Alternatively, after 203 and 204, further comprise following 205.Be that to be positioned at after 204 with 205 be example among Fig. 3, in like manner, this 205 also can be positioned at after 203.
205, send the frequency discrimination result of AFC to loop filter; For loop filter the frequency discrimination result of AFC is carried out filtering; And obtain a magnitude of voltage according to the frequency discrimination result of filtered AFC by processing module; Produce corresponding frequency oscillator signal by VCXO according to this magnitude of voltage again, this frequency oscillator signal is as the clock source of UE operate as normal.
In the present embodiment, when the translational speed of UE during less than predetermined threshold value, this moment is said according to 203, and the frequency discrimination result of a plurality of sub-districts is merged the frequency discrimination result as AFC.Be equivalent to this moment and can lower the probability that UE falls net, improve data transmission performance and stability of network through the mode that merges to obtain gain.And the translational speed of UE is during less than predetermined threshold value; Other sub-districts in a plurality of sub-districts outside the Serving cell are less with respect to the gain of obtaining through the mode that merges to the noise effect of Serving cell, therefore can the frequency discrimination result of a plurality of sub-districts be merged the frequency discrimination result as AFC.
When the translational speed of UE during more than or equal to predetermined threshold value, from the frequency discrimination result of a plurality of sub-districts obtain the frequency discrimination result of Serving cell according to described in 202 this moment.Because this moment, the translational speed of UE was bigger; Doppler frequency deviation is bigger to the influence of systematic function; And UE with respect to the Doppler frequency deviation of certain sub-district in a plurality of sub-districts for just, so just maybe be for negative with respect to the Doppler frequency deviation of another sub-district adjacent with this sub-district.This moment may be with the positive and negative counteracting of Doppler frequency deviation value of a plurality of sub-districts with the frequency discrimination result merging of a plurality of sub-districts if still adopt, and the Doppler frequency deviation that obtains a plurality of sub-districts is 0, has had a strong impact on systematic function.Other sub-districts outside the Serving cell are bigger with respect to the gain of obtaining through the mode that merges to the noise effect of Serving cell in a plurality of sub-districts at this moment; Therefore can take from the frequency discrimination result of a plurality of sub-districts, to obtain the frequency discrimination result of Serving cell; Therefore can filtering noise, improve data transmission performance and stability of network.
But confirming of the predetermined threshold value in the foregoing description can be through following mode: this predetermined threshold value need satisfy; When the translational speed of UE was got this predetermined threshold value, other sub-districts in a plurality of sub-districts outside the Serving cell were crossed the noise effect of Serving cell and just in time are equivalent to gain that a plurality of sub-districts are obtained with the mode that merges.
The frequency discrimination of the AFC of present embodiment is acquisition methods as a result, has changed the translational speed of not considering UE in the prior art, causes that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of present embodiment; Considered the translational speed of UE in the soft switching process; And can obtain the frequency discrimination result of AFC accurately according to the translational speed of UE and the magnitude relationship of predetermined threshold value, can improve the communication stability and the data transmission performance of HSPA system effectively; Thereby also can greatly improve the experience of UE.
The technical scheme of the present invention of the foregoing description can be applied to the HSPA system high-speed and move scene.For example the typical case is as in the high ferro scene, because the general downline of the network of high ferro plans, so UE often is in away from certain sub-district A in moving process, and near the motion state of sub-district B, the scope that A and B can both cover in the sub-district has just produced soft handover.If adopt existing AFC Frequency discrimination technology scheme this moment, performance has greater loss even the number crossing is disconnected.Adopt the technical scheme of the above embodiment of the present invention; UE can closely follow carrier frequency (the frequency discrimination result of UE employing this moment sub-district A of Serving cell A earlier; There is Doppler frequency deviation in B with the sub-district), after sub-district B signal was strengthened to network side gradually and issues Serving cell change signaling, sub-district B became Serving cell; UE becomes the frequency discrimination result who adopts sub-district B, guarantees the carrier frequency immediately following Serving cell.Therefore adopt the technical scheme of the embodiment of the invention, can effectively promote data transmission performance.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The frequency discrimination of the AFC that Fig. 4 provides for one embodiment of the invention is the structural representation of deriving means as a result.As shown in Figure 4, the frequency discrimination of the AFC of present embodiment is deriving means as a result, specifically can comprise: first acquisition module 10 and second acquisition module 11.
Wherein first acquisition module 10 is used for obtaining from a plurality of frequency discriminator block the frequency discrimination result of the corresponding a plurality of sub-districts of UE; These a plurality of sub-districts are that UE can receive all corresponding sub-districts of data, comprise the Serving cell of UE in these a plurality of sub-districts.Second acquisition module 11 is connected with first acquisition module 10, and second acquisition module 11 is used for obtaining according to the frequency discrimination result of a plurality of sub-districts of the magnitude relationship of the translational speed of UE and predetermined threshold value and 10 receptions of first acquisition module frequency discrimination result of AFC.
The frequency discrimination of the AFC of present embodiment is deriving means as a result; The realization mechanism of acquisition methods is identical with the realization mechanism of above-mentioned correlation technique embodiment as a result through adopting frequency discrimination that above-mentioned module realizes AFC; Can repeat no more at this with reference to the record of above-mentioned correlation technique embodiment in detail.
The frequency discrimination of the AFC of present embodiment is deriving means as a result, through adopting above-mentioned module through receiving the frequency discrimination result of the corresponding a plurality of sub-districts of UE; Obtain the frequency discrimination result of AFC according to the frequency discrimination result of the magnitude relationship of the translational speed of UE and predetermined threshold value and a plurality of sub-districts.Changed the translational speed of not considering UE in the prior art, caused that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of present embodiment; Considered the translational speed of UE in the soft switching process; And can obtain the frequency discrimination result of AFC accurately according to the translational speed of UE and the magnitude relationship of predetermined threshold value, can improve the communication stability and the data transmission performance of HSPA system effectively; Thereby also can greatly improve the experience of UE.
The frequency discrimination of the AFC that Fig. 5 provides for another embodiment of the present invention is the structural representation of deriving means as a result.As shown in Figure 5, the frequency discrimination of the AFC of present embodiment as a result deriving means on above-mentioned basis embodiment illustrated in fig. 4, only can also comprise determination module 12.This determination module 12 is used for confirming the translational speed of UE and the magnitude relationship of predetermined threshold value.This moment, second acquisition module 11 was connected with determination module 12, and second acquisition module 11 is used for obtaining according to the frequency discrimination result of a plurality of sub-districts of the magnitude relationship of the translational speed of the definite UE of determination module 12 and predetermined threshold value and 10 receptions of first acquisition module frequency discrimination result of AFC.
Alternatively, at the frequency discrimination of the AFC of the foregoing description as a result on the basis of deriving means, when the translational speed of UE during more than or equal to predetermined threshold value, second acquisition module 11 specifically can comprise acquiring unit 111 and processing unit 112.
Wherein acquiring unit 111 is connected with first acquisition module 10 with determination module 12 respectively; The translational speed that acquiring unit 111 is used for confirming UE when determination module 12 is obtained the frequency discrimination result of Serving cell during more than or equal to predetermined threshold value from the frequency discrimination result of a plurality of sub-districts that first acquisition module 10 receives.Processing unit 112 is connected with acquiring unit 111, and the frequency discrimination result of the Serving cell that processing unit 112 is used for acquiring unit 111 is obtained is as the frequency discrimination result of AFC.
Alternatively, at the frequency discrimination of the AFC of the foregoing description as a result on the basis of deriving means, the translational speed of confirming UE when determination module 12 is during less than predetermined threshold value, and second acquisition module 11 does not comprise acquiring unit 111 and processing unit 112.This moment, second acquisition module 11 was connected with determination module 12, and is not shown among Fig. 5.The translational speed that second acquisition module 11 specifically is used for confirming UE when determination module 12 is during less than predetermined threshold value, and the frequency discrimination result of a plurality of sub-districts is merged the frequency discrimination result as AFC.
Alternatively, as a result on the basis of deriving means, the frequency discrimination of the AFC of present embodiment deriving means as a result can also comprise sending module 13 at the frequency discrimination of the AFC of the foregoing description.This sending module 13 is used for sending to loop filter the frequency discrimination result of AFC; For loop filter the frequency discrimination result of AFC is carried out filtering; And obtain a magnitude of voltage according to the frequency discrimination result of filtered AFC by processing module; Produce corresponding frequency oscillator signal by VCXO according to this magnitude of voltage again, this frequency oscillator signal is as the clock source of UE operate as normal.The translational speed of confirming UE when determination module 12 is during more than or equal to predetermined threshold value, and as shown in Figure 5, sending module 13 is connected with processing unit 112, the frequency discrimination result of the AFC that sending module 13 is used for obtaining to 112 processing of loop filter transmission processing unit.The translational speed of confirming UE when determination module 12 is during less than predetermined threshold value; Sending module 13 should be connected with second acquisition module 11; Not shown, this moment, sending module 13 was used for sending the frequency discrimination result that second acquisition module 11 is handled the AFC that obtains to loop filter.
Need to prove, adopt above-mentioned a plurality of possibility parallel modes in the present embodiment.Above-mentioned a plurality of possibilities can be separately as one embodiment of the present of invention in the practical application.
The frequency discrimination of the AFC of present embodiment is deriving means as a result; The realization mechanism of acquisition methods is identical with the realization mechanism of above-mentioned correlation technique embodiment as a result through adopting frequency discrimination that above-mentioned module realizes AFC; Can repeat no more at this with reference to the record of above-mentioned correlation technique embodiment in detail.
The frequency discrimination of the AFC of present embodiment is deriving means as a result, can change the translational speed of not considering UE in the prior art through adopting above-mentioned module, causes that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of present embodiment; Considered the translational speed of UE in the soft switching process; And can obtain the frequency discrimination result of AFC accurately according to the translational speed of UE and the magnitude relationship of predetermined threshold value, can improve the communication stability and the data transmission performance of HSPA system effectively; Thereby also can greatly improve the experience of UE.
The structural representation of the AFC equipment that Fig. 6 provides for the embodiment of the invention.As shown in Figure 6, the AFC equipment of present embodiment, the frequency discrimination that comprises a plurality of frequency discriminator block 20, AFC is deriving means 30, loop filter 40, processing module 50 and VCXO60 as a result;
Wherein a plurality of frequency discriminator block 20 are used to obtain the frequency discrimination result of a plurality of sub-districts of UE; These a plurality of sub-districts are that UE can receive all corresponding sub-districts of data.The frequency discrimination of AFC deriving means 30 as a result is connected with a plurality of frequency discriminator block 20, and the frequency discrimination of the AFC magnitude relationship of translational speed and the predetermined threshold value of frequency discrimination result and the UE of deriving means 30 a plurality of sub-districts of being used for obtaining according to a plurality of frequency discriminator block 20 as a result obtains the frequency discrimination result of AFC.The frequency discrimination of loop filter 40 and AFC deriving means 30 as a result is connected, loop filter 40 be used for to the frequency discrimination of AFC as a result the frequency discrimination result of the AFC that obtains of deriving means 30 carry out filtering.Processing module 50 is connected with loop filter 40, and processing module 50 is used for obtaining a magnitude of voltage according to the frequency discrimination result of loop filter 40 filtered AFC.For example this processing module 50 can be earlier with current frequency addition as pre-stored in the frequency discrimination result's of loop filter 40 filtered AFC frequency departure and the processing module 50, obtain adjusted frequency.The current frequency of this pre-stored is last adjusted frequency.It is a magnitude of voltage that processing module 50 also is used for adjusted frequency map.Therefore this processing module 50 can adopt an accumulator and a transducer integrated.Accumulator is used to realize and will obtains adjusted frequency as the frequency discrimination result's of the AFC that obtains after loop filter 40 filtering the frequency departure and the current frequency addition of pre-stored.It is a magnitude of voltage that transducer is used for the adjusted frequency map of accumulator.VCXO60 is connected with processing module 50, and the magnitude of voltage that VCXO60 obtains according to processing module 50 produces corresponding frequency oscillator signal, and this frequency oscillator signal is as the clock source of UE operate as normal.The preset receive frequency that for example a plurality of frequency discriminator block 20 adopt when obtaining as frequency discrimination result's frequency departure can produce according to this frequency oscillator signal that VCXO60 produces.
Alternatively; The frequency discrimination of AFC in the present embodiment is the deriving means 30 frequency discrimination deriving means as a result that can adopt above-mentioned Fig. 4 or AFC embodiment illustrated in fig. 5 as a result; The frequency discrimination that can adopt above-mentioned Fig. 2 or AFC embodiment illustrated in fig. 3 in detail is acquisition methods the obtaining of frequency discrimination result of realizing AFC as a result; Can repeat no more at this with reference to the record of above-mentioned related embodiment in detail.
The AFC equipment of present embodiment; Frequency discrimination through adopting above-mentioned a plurality of frequency discriminator block 20, AFC deriving means 30, loop filter 40, processing module 50 and VCXO60 as a result can change the translational speed of not considering UE in the prior art, causes that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of present embodiment; Considered the translational speed of UE in the soft switching process; And can obtain the frequency discrimination result of AFC accurately according to the translational speed of UE and the magnitude relationship of predetermined threshold value, can improve the communication stability and the data transmission performance of HSPA system effectively; Thereby also can greatly improve the experience of UE.
Device embodiment described above only is schematic; Wherein the unit as the separating component explanation can or can not be physically to separate also; The parts that show as the unit can be or can not be physical locations also; Promptly can be positioned at a place, perhaps also can be distributed at least two NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of module wherein of reality.Those of ordinary skills promptly can understand and implement under the situation of not paying performing creative labour.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (11)
1. the frequency discrimination of automatic frequency control acquisition methods as a result is characterized in that, comprising:
From a plurality of frequency discriminator block, obtain the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district, comprises the Serving cell of said subscriber equipment in said a plurality of sub-districts;
Be obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts.
2. method according to claim 1 is characterized in that, also comprises:
Confirm the magnitude relationship of said moving user equipment and said predetermined threshold value.
3. method according to claim 1 is characterized in that, is obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts, comprising:
When said moving user equipment during, from the frequency discrimination result of said a plurality of sub-districts, obtain the frequency discrimination result of said Serving cell more than or equal to said predetermined threshold value; And with the frequency discrimination result of said Serving cell frequency discrimination result as said automatic frequency control.
4. method according to claim 1 is characterized in that, is obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts, comprising:
When said moving user equipment during, the frequency discrimination result of said a plurality of sub-districts is merged the frequency discrimination result as said automatic frequency control less than said predetermined threshold value.
5. according to the arbitrary described method of claim 1-4, it is characterized in that, also comprise:
Send the frequency discrimination result of said automatic frequency control to loop filter; The frequency discrimination result who said automatic frequency is controlled for said loop filter carries out filtering; And the frequency discrimination result who is controlled according to filtered said automatic frequency by processing module obtains a magnitude of voltage; Produce corresponding frequency oscillator signal by VCXO according to said magnitude of voltage again, said frequency oscillator signal is as the clock source of said subscriber equipment operate as normal.
6. the frequency discrimination of automatic frequency control deriving means as a result is characterized in that, comprising:
First acquisition module is used for obtaining from a plurality of frequency discriminator block the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district, comprises the Serving cell of said subscriber equipment in said a plurality of sub-districts;
Second acquisition module is used for being obtained from the frequency discrimination result that dynamic frequency is controlled according to the magnitude relationship of said moving user equipment and predetermined threshold value and the frequency discrimination result of said a plurality of sub-districts.
7. device according to claim 6 is characterized in that, also comprises:
Determination module is used for confirming the magnitude relationship of said moving user equipment and said predetermined threshold value.
8. device according to claim 6 is characterized in that, said second acquisition module comprises:
Acquiring unit is used for from the frequency discrimination result of said a plurality of sub-districts, obtaining the frequency discrimination result of said Serving cell when said moving user equipment during more than or equal to said predetermined threshold value;
Processing unit is used for the frequency discrimination result as said automatic frequency control with the frequency discrimination result of said Serving cell.
9. device according to claim 6; It is characterized in that; Said second acquisition module specifically is used for when said moving user equipment during less than said predetermined threshold value, and the frequency discrimination result of said a plurality of sub-districts is merged the frequency discrimination result as said automatic frequency control.
10. according to the arbitrary described device of claim 6-9, it is characterized in that, also comprise:
Sending module; Be used for sending the frequency discrimination result of said automatic frequency control to loop filter; The frequency discrimination result who said automatic frequency is controlled for said loop filter carries out filtering; And obtain a magnitude of voltage according to the frequency discrimination result of filtered said automatic frequency control by processing module, and producing corresponding frequency oscillator signal by VCXO according to said magnitude of voltage again, said frequency oscillator signal is as the clock source of said subscriber equipment operate as normal.
11. an auto frequency control apparatus is characterized in that, the frequency discrimination that comprises the control of a plurality of frequency discriminator block, automatic frequency is deriving means, loop filter, processing module and VCXO as a result;
Said a plurality of frequency discriminator block is used to obtain the frequency discrimination result of the corresponding a plurality of sub-districts of subscriber equipment; Said a plurality of sub-district is that said subscriber equipment can receive the data corresponding district; The Serving cell that comprises said subscriber equipment in said a plurality of sub-district;
The frequency discrimination of said automatic frequency control is deriving means as a result, and the frequency discrimination result of the said a plurality of sub-districts that are used for getting access to according to said a plurality of frequency discriminator block and the magnitude relationship of said moving user equipment and predetermined threshold value are obtained from the frequency discrimination result that dynamic frequency is controlled;
Said loop filter is used for the frequency discrimination result of the frequency discrimination of the said automatic frequency control deriving means said automatic frequency control of obtaining is as a result carried out filtering;
Said processing module is used for obtaining a magnitude of voltage according to the frequency discrimination result of the filtered said automatic frequency control of said loop filter;
Said VCXO is used for producing corresponding frequency oscillator signal according to the said magnitude of voltage that said processing module is obtained, and said frequency oscillator signal is as the clock source of said subscriber equipment operate as normal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/079094 WO2012119426A1 (en) | 2011-08-30 | 2011-08-30 | Method, device and apparatus for obtaining frequency discrimination result of auto frequency control |
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| CN102369763A true CN102369763A (en) | 2012-03-07 |
| CN102369763B CN102369763B (en) | 2013-12-04 |
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| WO2012119426A1 (en) | 2012-09-13 |
| CN102369763B (en) | 2013-12-04 |
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