CN102369763B - 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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- CN102369763B CN102369763B CN2011800015285A CN201180001528A CN102369763B CN 102369763 B CN102369763 B CN 102369763B CN 2011800015285 A CN2011800015285 A CN 2011800015285A CN 201180001528 A CN201180001528 A CN 201180001528A CN 102369763 B CN102369763 B CN 102369763B
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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 present invention relates to communication technical field, relates in particular to frequency discrimination that a kind of automatic frequency controls acquisition methods, device and equipment as a result.
Background technology
High-speed packet access (High Speed Packet Access; Hereinafter to be referred as HSPA) system is Wideband Code Division Multiple Access (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) be mainly 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, the HSPA system just has two dedicated channels, a DPCH, and one is HS-PDSCH.DPCH supports soft hand-off, in corresponding soft switching process, due to subscriber equipment (User Equipment; Hereinafter to be referred as UE) with a plurality of communities of network side, keep communicating by letter simultaneously, and identical with the Content of Communication of each community.UE usually does to merge to the reception data of the plurality of community and processes to obtain gain.Adopt particularly following frequency detection mode to support above-mentioned soft handover: the automatic frequency of UE side is controlled (Auto Frequency Control; Hereinafter to be referred as AFC) equipment will be wherein the frequency discrimination result that obtains of frequency discriminator block merged the frequency discrimination result as AFC equipment.Frequency discriminator block in AFC equipment corresponding UE respectively can receive the community of data.The corresponding GeUEDe community of each frequency discriminator block.The frequency deviation of the frequency of these data that wherein frequency discriminator block corresponding to AFC equipment Zhong Dege community sends with respect to this community specifically for the frequency of the data obtaining UE and receive, this frequency departure comprises the poor and Doppler frequency deviation of the local frequency of base station, place, UEYu Gai community.Wherein Doppler frequency deviation refers to that there are caused by relative motion in UE and this antenna in cell, and there is deviation in the frequency that the frequency He Gai community that now UE receives data sends data.And the UE speed of related movement is faster, and Doppler frequency deviation is larger.Relative velocity is just (as UE when the community), and Doppler frequency deviation is also for just.The Doppler frequency deviation that relative velocity for example, causes for negative (when UE is away from community) is negative.
In realizing process of the present invention, the inventor finds that in prior art, at least there are the following problems: in the frequency discrimination scheme of above-mentioned support soft handover, the UE side is not considered the translational speed of UE, and directly the frequency discrimination result of all communities is done to merging in AFC, for example, when the UE relative moving speed is larger, Doppler frequency deviation can have a strong impact on the reception of HS-PDSCH in the HSPA system, thereby affects the HSPA systematic function, causes that communication stability is lower, data transmission performance is lower.
Summary of the invention
The embodiment of the present invention provides frequency discrimination that a kind of automatic frequency controls 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 prior art, cause the defect that HSPA system communication stability is lower, data transmission performance is lower.
The embodiment of the present invention provides frequency discrimination that a kind of automatic frequency controls acquisition methods as a result, comprising:
Obtain the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding from a plurality of frequency discriminator block; Described a plurality of community is that described subscriber equipment can receive community corresponding to data, and described a plurality of communities comprise the Serving cell of described subscriber equipment;
Be obtained from according to the magnitude relationship of the translational speed of described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled.
The embodiment of the present invention provides frequency discrimination that a kind of automatic frequency controls deriving means as a result, comprising:
The first acquisition module, for obtaining the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding from a plurality of frequency discriminator block; Described a plurality of community is that described subscriber equipment can receive community corresponding to data, and described a plurality of communities comprise the Serving cell of described subscriber equipment;
The second acquisition module, be obtained from for the magnitude relationship of the translational speed according to described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled.
The embodiment of the present invention also provides a kind of auto frequency control apparatus, comprises frequency discrimination that a plurality of frequency discriminator block, automatic frequency control deriving means, loop filter, processing module and VCXO as a result;
Described a plurality of frequency discriminator block, for obtaining the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding; Described a plurality of community is that described subscriber equipment can receive community corresponding to data; Described a plurality of community comprises the Serving cell of described subscriber equipment;
The frequency discrimination that described automatic frequency is controlled is deriving means as a result, is obtained from the frequency discrimination result of dynamic frequency control for translational speed and the magnitude relationship of predetermined threshold value of the frequency discrimination result of described a plurality of communities of getting according to described a plurality of frequency discriminator block and described subscriber equipment;
Described loop filter, the frequency discrimination result of controlling for the frequency discrimination described automatic frequency that deriving means obtains as a result that described automatic frequency is controlled is carried out filtering;
Described processing module, obtain a magnitude of voltage for the frequency discrimination result of controlling according to the filtered described automatic frequency of described loop filter;
Described VCXO, produce corresponding frequency oscillator signal for the described magnitude of voltage obtained according to described processing module, and described frequency oscillator signal is as the clock source of described subscriber equipment normal operation.
The frequency discrimination that the automatic frequency of the embodiment of the present invention is controlled is acquisition methods, device and equipment as a result, by obtain the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding from a plurality of frequency discriminator block; Described a plurality of community is that described subscriber equipment can receive community corresponding to data, and described a plurality of communities comprise the Serving cell of described subscriber equipment; Be obtained from according to the magnitude relationship of the translational speed of described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled.Changed the translational speed of not considering subscriber 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 present invention, considered the translational speed of subscriber equipment in soft switching process, and can obtain the frequency discrimination result that automatic frequency is controlled accurately according to the translational speed of subscriber equipment and the magnitude relationship of predetermined threshold value, can effectively improve communication stability and the data transmission performance of HSPA system; Thereby also can greatly improve the experience of subscriber equipment.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the AFC equipment that Fig. 1 is prior art;
The frequency discrimination that the automatic frequency that Fig. 2 provides for one embodiment of the invention is controlled is the flow chart of acquisition methods as a result;
The frequency discrimination that the automatic frequency that Fig. 3 provides for another embodiment of the present invention is controlled is the flow chart of acquisition methods as a result;
The frequency discrimination that the automatic frequency that Fig. 4 provides for one embodiment of the invention is controlled is the structural representation of deriving means as a result;
The frequency discrimination that the automatic frequency that Fig. 5 provides for another embodiment of the present invention is controlled 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 present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The DPCH channel is supported soft hand-off, and UE can keep communicating by letter with a plurality of communities of network side by DPCH simultaneously, and identical with the Content of Communication of each community.UE can carry out frequency discrimination to each community of soft handover, then these frequency discrimination results is merged as final frequency discrimination result, in the WCDMA system, is exactly for example to adopt this frequency detection mode to support soft handover.In the HSPA system, while using HS-PDSCH, DPCH also exists simultaneously, and now DPCH is mainly used to transmit 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 is higher, because the HS-PDSCH adopted in the HSPA system does not support soft hand-off, synchronization UE Yu Yige community (being current service cell) communicates.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 larger, and due to HS-PDSCH follow-up service community, the mode that now adopts above-mentioned frequency discrimination result to merge can not brought any gain to system, can have a strong impact on the HS-PDSCH communication performance on the contrary, cause that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of the following embodiment of the present invention can head it off.
The structural representation of the AFC equipment that Fig. 1 is 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, in prior art, in the UE side, adopt the AFC equipment shown in Fig. 1 to be adjusted the receive frequency of UE, in order to strengthen data transmission performance, raising soft handover efficiency.As shown in Figure 1, the corresponding Yi Ge of each frequency discriminator block 1 community.A plurality of frequency discriminator block 1 corresponding UE respectively can receive a plurality of communities of data.Each frequency discriminator block 1 sends the frequency departure of the frequency of data and default receive frequency as the frequency discrimination result for obtaining respective cell.Merge module 2 and be connected with a plurality of frequency discriminator block 1 respectively, merge module 2 and merged the frequency discrimination result as AFC for the frequency discrimination result that a plurality of frequency discriminator block 1 are obtained.Loop filter 3 with merge module 2 and be connected, loop filter 3 carries out the filtering processing for the frequency discrimination result of the AFC that is combined module 2 processing and obtains.Processing module 4 is connected with loop filter 3, and processing module 4 is obtained a magnitude of voltage for the frequency discrimination result of the AFC according to after loop filter 3 filtering processing.The for example current frequency addition of pre-stored in the frequency departure of the frequency discrimination result of the AFC of processing module 4 after can first processing as filtering and processing module 4, the frequency after being adjusted.The current frequency of this pre-stored is the frequency after last the adjustment.Processing module 4 is also a magnitude of voltage for the frequency map by after adjusting.VCXO5 is connected with processing module 4, and VCXO5 produces corresponding frequency oscillator signal for the magnitude of voltage obtained according to processing module 4, and this frequency oscillator signal is as the clock source of UE normal operation.
In above-mentioned prior art, do not consider the translational speed of UE, and the frequency discrimination result of corresponding a plurality of communities directly merges by this UE.For example, in the UE high-speed mobile process for connected state (carrying out voice or data transmission service), existence due to Doppler frequency deviation, traveling priority between UEZai Liang community A and B for example, now the Doppler frequency deviation frequency discrimination result of UEDui community A is 700Hz, the Doppler frequency deviation frequency discrimination result of the relative community 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 efficiency 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 frequency discrimination that the executive agent of acquisition methods is an AFC as a result is deriving means as a result.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 the present embodiment is acquisition methods as a result, specifically can comprise as follows:
100, obtain the frequency discrimination result of a plurality of communities that UE is corresponding from a plurality of frequency discriminator block;
Wherein the plurality of community is that UE can receive community corresponding to data, and wherein a plurality of communities comprise 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 communities.Each frequency discriminator block can be obtained the frequency of transmission data of Yi Ge community and the frequency departure of default receive frequency is the frequency discrimination result.
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 communities.
The frequency discrimination of the AFC of the present embodiment is acquisition methods as a result, by obtain the frequency discrimination result of a plurality of communities that UE is corresponding from a plurality of frequency discriminator block; 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 communities.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 the present embodiment, considered the translational speed of UE in 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 effectively improve communication stability and the data transmission performance of HSPA system; Thereby also can greatly improve the experience of UE.
Alternatively, above-described embodiment 100 before or between 100 and 101, also comprise: determine the translational speed of UE and the magnitude relationship of predetermined threshold value.For example can, by a speed detector is set in UE, detect the translational speed of UE.
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.Implement embodiment shown in Fig. 3 on above-mentioned basis embodiment illustrated in fig. 2, be further explained in detail the technical scheme of the embodiment of the present invention.As shown in Figure 3, the frequency discrimination of the AFC of the present embodiment is acquisition methods as a result, specifically can comprise as follows:
200, obtain the frequency discrimination result of a plurality of communities that UE is corresponding from a plurality of frequency discriminator block; Carry out 201;
Whether the translational speed that 201, judges UE is more than or equal to predetermined threshold value; When the translational speed of determining UE is more than or equal to predetermined threshold value, carries out 202, otherwise, when the translational speed of determining UE is less than predetermined threshold value, carry out 203;
Wherein 200 and 201 can not have sequencing.
202, obtain the frequency discrimination result of Serving cell from the frequency discrimination result of a plurality of communities; Carry out 204;
203, the frequency discrimination result of a plurality of communities is merged to the frequency discrimination result as AFC;
204, the frequency discrimination result using the frequency discrimination result of Serving cell as AFC;
Alternatively, after 203 and 204, further comprise following 205.In Fig. 3, be to take 205 to be positioned at after 204 be example, 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 to filtering, and obtain a magnitude of voltage by processing module according to the frequency discrimination result of filtered AFC, 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 normal operation.
In the present embodiment, when the translational speed of UE is less than predetermined threshold value, now described according to 203, the frequency discrimination result of a plurality of communities is merged to the frequency discrimination result as AFC.Now be equivalent to lower the probability that UE falls net by the mode that merges to obtain gain, improve the stability of data transmission performance and network.And when the translational speed of UE is less than predetermined threshold value, the gain that other communities in a plurality of communities outside Serving cell obtain with respect to the mode by merging the noise effect of Serving cell is less, therefore the frequency discrimination result of a plurality of communities can be merged to the frequency discrimination result as AFC.
When the translational speed of UE is more than or equal to predetermined threshold value, now according to described in 202, obtain the frequency discrimination result of Serving cell from the frequency discrimination result of a plurality of communities.Because the translational speed of UE now is larger, Doppler frequency deviation is larger on the impact of systematic function, and UE is with respect to the Doppler frequency deviation of certain community in a plurality of communities for just, and with respect to the Yu Gai community, the Doppler frequency deviation of another adjacent community just may be for negative so.If now still adopt, the frequency discrimination result of a plurality of communities being merged may be by the positive and negative counteracting of Doppler frequency deviation value of a plurality of communities, and the Doppler frequency deviation that obtains a plurality of communities is 0, has had a strong impact on systematic function.The gain that now in a plurality of communities, other communities outside Serving cell obtain with respect to the mode by merging the noise effect of Serving cell is larger, therefore can take to obtain the frequency discrimination result of Serving cell from the frequency discrimination result of a plurality of communities, therefore can filtering noise, improve the stability of data transmission performance and network.
But determining of the predetermined threshold value in above-described embodiment can be in the following way: this predetermined threshold value need to meet, when the translational speed of UE is got this predetermined threshold value, other communities in a plurality of communities outside Serving cell are crossed and just in time are equivalent to the gain that a plurality of communities are obtained in the mode merged the noise effect of Serving cell.
The frequency discrimination of the AFC of the 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 the present embodiment, considered the translational speed of UE in 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 effectively improve communication stability and the data transmission performance of HSPA system; Thereby also can greatly improve the experience of UE.
The technical scheme of the present invention of above-described embodiment can be applied to HSPA system high-speed mobile context.For example the typical case is as in the high ferro scene, and due to the general downline planning of network of high ferro, so UE often, in away from certain community A, near the motion state ，Zai community A of community B and the scope that B can cover, has just produced soft handover in moving process.If now adopt existing AFC frequency discrimination technology scheme, performance has even data transmission interrupt of greater loss.Adopt the technical scheme of the above embodiment of the present invention, UE can first closely follow carrier frequency (the frequency discrimination result of now UE employing community A of Serving cell A, with community, there is Doppler frequency deviation in B), after community B signal is strengthened to gradually network side and issues Serving cell change signaling, community B becomes Serving cell, UE becomes the frequency discrimination result that adopts community B, guarantees the carrier frequency immediately following Serving cell.Therefore adopt the technical scheme of the embodiment of the present invention, can effectively promote data transmission performance.
One of ordinary skill in the art will appreciate that: realize that the hardware that all or part of step of said method embodiment can be relevant by program command completes, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
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 the present embodiment is deriving means as a result, specifically can comprise: the first acquisition module 10 and the second acquisition module 11.
Wherein the first acquisition module 10 is for obtaining the frequency discrimination result of a plurality of communities that UE is corresponding from a plurality of frequency discriminator block; The plurality of community is that UE can receive all communities corresponding to data, and the plurality of community comprises the Serving cell of UE.The second acquisition module 11 is connected with the first acquisition module 10, and the frequency discrimination result of a plurality of communities that the second acquisition module 11 receives for the magnitude relationship of the translational speed according to UE and predetermined threshold value and the first acquisition module 10 is obtained the frequency discrimination result of AFC.
The frequency discrimination of the AFC of the present embodiment is deriving means as a result, frequency discrimination by adopting above-mentioned module the to realize AFC realization mechanism of acquisition methods as a result is identical with the realization mechanism of above-mentioned correlation technique embodiment, can, with reference to the record of above-mentioned correlation technique embodiment, not repeat them here in detail.
The frequency discrimination of the AFC of the present embodiment is deriving means as a result, by adopting above-mentioned module by receiving the frequency discrimination result of a plurality of communities that UE is corresponding; 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 communities.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 the present embodiment, considered the translational speed of UE in 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 effectively improve communication stability and the data transmission performance of HSPA system; 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 the 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 for the translational speed of definite UE and the magnitude relationship of predetermined threshold value.Now the second acquisition module 11 is connected with determination module 12, and the frequency discrimination result of a plurality of communities that the second acquisition module 11 receives for magnitude relationship and first acquisition module 10 of the translational speed of the UE definite according to determination module 12 and predetermined threshold value is obtained the frequency discrimination result of AFC.
Alternatively, at the frequency discrimination of the AFC of above-described embodiment, as a result on the basis of deriving means, when the translational speed of UE is more than or equal to predetermined threshold value, the second acquisition module 11 specifically can comprise acquiring unit 111 and processing unit 112.
Wherein acquiring unit 111 is connected with the first acquisition module 10 with determination module 12 respectively, acquiring unit 111, for when determination module 12 determines that the translational speed of UE is more than or equal to predetermined threshold value, obtains the frequency discrimination result of Serving cell the frequency discrimination result of a plurality of communities that receive from the first acquisition module 10.Processing unit 112 is connected with acquiring unit 111, and processing unit 112 is the frequency discrimination result as AFC for the frequency discrimination result of Serving cell that acquiring unit 111 is obtained.
Alternatively, at the frequency discrimination of the AFC of above-described embodiment, as a result on the basis of deriving means, when determination module 12 determines that the translational speed of UE is less than predetermined threshold value, the second acquisition module 11 does not comprise acquiring unit 111 and processing unit 112.Now the second acquisition module 11 is connected with determination module 12, not shown in Fig. 5.The second acquisition module 11, specifically for when determination module 12 determines that the translational speed of UE is less than predetermined threshold value, merges the frequency discrimination result as AFC using the frequency discrimination result of a plurality of communities.
Alternatively, at the frequency discrimination of the AFC of above-described embodiment, as a result on the basis of deriving means, the frequency discrimination of the AFC of the present embodiment deriving means as a result can also comprise sending module 13.This sending module 13 is for sending the frequency discrimination result of AFC to loop filter, for loop filter, the frequency discrimination result of AFC is carried out to filtering, and obtain a magnitude of voltage by processing module according to the frequency discrimination result of filtered AFC, 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 normal operation.When determination module 12 determines that the translational speed of UE is more than or equal to predetermined threshold value, as shown in Figure 5, sending module 13 is connected with processing unit 112, and sending module 13 is for the frequency discrimination result of the AFC that 112 processing obtain to loop filter transmission processing unit.When determination module 12 determines that the translational speed of UE is less than predetermined threshold value, sending module 13 should be connected with the second acquisition module 11, not shown, now sending module 13 is processed the frequency discrimination result of the AFC obtained for send the second acquisition module 11 to loop filter.
It should be noted that, adopt above-mentioned a plurality of possibility parallel modes in the present embodiment.In practical application, above-mentioned a plurality of possibilities can be separately as one embodiment of the present of invention.
The frequency discrimination of the AFC of the present embodiment is deriving means as a result, frequency discrimination by adopting above-mentioned module the to realize AFC realization mechanism of acquisition methods as a result is identical with the realization mechanism of above-mentioned correlation technique embodiment, can, with reference to the record of above-mentioned correlation technique embodiment, not repeat them here in detail.
The frequency discrimination of the AFC of the present embodiment is deriving means as a result, by having adopted above-mentioned module to change, does not consider the translational speed of UE in the prior art, causes that communication stability is lower, data transmission performance is lower.Adopt the technical scheme of the present embodiment, considered the translational speed of UE in 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 effectively improve communication stability and the data transmission performance of HSPA system; 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 present invention.As shown in Figure 6, the AFC equipment of the 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 for the frequency discrimination result of a plurality of communities of obtaining UE; The plurality of community is that UE can receive all communities corresponding to 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 AFC deriving means 30 as a result obtains the frequency discrimination result of AFC for the magnitude relationship of the translational speed of the frequency discrimination result of a plurality of communities of obtaining according to a plurality of frequency discriminator block 20 and UE and predetermined threshold value.The frequency discrimination of loop filter 40 and AFC deriving means 30 as a result is connected, and loop filter 40 carries out filtering for the frequency discrimination result of the AFC that deriving means 30 obtains as a result of the frequency discrimination to AFC.Processing module 50 is connected with loop filter 40, and processing module 50 is obtained a magnitude of voltage for the frequency discrimination result according to loop filter 40 filtered AFC.For example this processing module 50 can be first using the current frequency addition of pre-stored in the frequency departure of the frequency discrimination result as loop filter 40 filtered AFC and processing module 50, the frequency after being adjusted.The current frequency of this pre-stored is the frequency after last the adjustment.Processing module 50 is also a magnitude of voltage for the frequency map by after adjusting.Therefore this processing module 50 can adopt an accumulator and a transducer integrated.Accumulator is for the frequency after realizing being adjusted as the current frequency addition of the frequency departure of the frequency discrimination result of the AFC obtained after loop filter 40 filtering and pre-stored.It is a magnitude of voltage by the frequency map after the accumulator adjustment that transducer is used for.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 normal operation.This frequency oscillator signal that the default receive frequency for example, adopted when a plurality of frequency discriminator block 20 are obtained the frequency departure as the frequency discrimination result can produce according to VCXO60 produces.
Alternatively, the frequency discrimination of AFC in the present embodiment frequency discrimination that deriving means 30 can adopt above-mentioned Fig. 4 or AFC embodiment illustrated in fig. 5 as a result is deriving means as a result, the frequency discrimination that can adopt in detail above-mentioned Fig. 2 or AFC embodiment illustrated in fig. 3 the obtaining of frequency discrimination result that acquisition methods is realized AFC as a result, can, with reference to the record of above-mentioned related embodiment, not repeat them here in detail.
The AFC equipment of the present embodiment, frequency discrimination by 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 the present embodiment, considered the translational speed of UE in 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 effectively improve communication stability and the data transmission performance of HSPA system; Thereby also can greatly improve the experience of UE.
Device embodiment described above is only schematic, wherein the unit as the separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed at least two network element.Can select according to the actual needs some or all of module wherein to realize the purpose of the present embodiment scheme.Those of ordinary skills in the situation that do not pay performing creative labour, can understand and implement.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. the frequency discrimination that an automatic frequency is controlled is acquisition methods as a result, it is characterized in that, comprising:
Obtain the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding from a plurality of frequency discriminator block; Described a plurality of community is that described subscriber equipment can receive community corresponding to data, and described a plurality of communities comprise the Serving cell of described subscriber equipment;
Be obtained from according to the magnitude relationship of the translational speed of described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled, described predetermined threshold value meets: when the translational speed of described subscriber equipment is described predetermined threshold value, other communities in described a plurality of communities outside Serving cell just in time are equivalent to the noise effect of described Serving cell the gain that described a plurality of communities are obtained in the mode merged;
Be obtained from according to the magnitude relationship of the translational speed of described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled, comprise:
When the translational speed of described subscriber equipment is more than or equal to described predetermined threshold value, obtain the frequency discrimination result of described Serving cell from the frequency discrimination result of described a plurality of communities; And the frequency discrimination result that the frequency discrimination result of described Serving cell is controlled as described automatic frequency.
2. method according to claim 1, is characterized in that, also comprises:
Determine the translational speed of described subscriber equipment and the magnitude relationship of described predetermined threshold value.
3. according to the arbitrary described method of claim 1-2, it is characterized in that, also comprise:
Send to loop filter the frequency discrimination result that described automatic frequency is controlled, the frequency discrimination result of described automatic frequency being controlled for described loop filter is carried out filtering, and the frequency discrimination result of being controlled according to filtered described automatic frequency by processing module is obtained a magnitude of voltage, produce corresponding frequency oscillator signal by VCXO according to described magnitude of voltage again, described frequency oscillator signal is as the clock source of described subscriber equipment normal operation.
4. the frequency discrimination that an automatic frequency is controlled is deriving means as a result, it is characterized in that, comprising:
The first acquisition module, for obtaining the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding from a plurality of frequency discriminator block; Described a plurality of community is that described subscriber equipment can receive community corresponding to data, and described a plurality of communities comprise the Serving cell of described subscriber equipment;
The second acquisition module, be obtained from for the magnitude relationship of the translational speed according to described subscriber equipment and predetermined threshold value and the frequency discrimination result of described a plurality of communities the frequency discrimination result that dynamic frequency is controlled, described predetermined threshold value meets: when the translational speed of described subscriber equipment is described predetermined threshold value, other communities in described a plurality of communities outside Serving cell just in time are equivalent to the noise effect of described Serving cell the gain that described a plurality of communities are obtained in the mode merged;
Described the second acquisition module comprises:
Acquiring unit while for the translational speed when described subscriber equipment, being more than or equal to described predetermined threshold value, obtains the frequency discrimination result of described Serving cell from the frequency discrimination result of described a plurality of communities;
Processing unit, the frequency discrimination result of controlling as described automatic frequency for the frequency discrimination result using described Serving cell.
5. device according to claim 4, is characterized in that, also comprises:
Determination module, for the translational speed of definite described subscriber equipment and the magnitude relationship of described predetermined threshold value.
6. according to the arbitrary described device of claim 4-5, it is characterized in that, also comprise:
Sending module, for send the frequency discrimination result that described automatic frequency is controlled to loop filter, the frequency discrimination result of described automatic frequency being controlled for described loop filter is carried out filtering, and the frequency discrimination result of being controlled according to filtered described automatic frequency by processing module is obtained a magnitude of voltage, produce corresponding frequency oscillator signal by VCXO according to described magnitude of voltage again, described frequency oscillator signal is as the clock source of described subscriber equipment normal operation.
7. an auto frequency control apparatus, is characterized in that, comprises frequency discrimination that a plurality of frequency discriminator block, automatic frequency control deriving means, loop filter, processing module and VCXO as a result;
Described a plurality of frequency discriminator block, for obtaining the frequency discrimination result of a plurality of communities that subscriber equipment is corresponding; Described a plurality of community is that described subscriber equipment can receive community corresponding to data; Described a plurality of community comprises the Serving cell of described subscriber equipment;
The frequency discrimination that described automatic frequency is controlled is deriving means as a result, be obtained from the frequency discrimination result of dynamic frequency control for the translational speed of the frequency discrimination result of described a plurality of communities of getting according to described a plurality of frequency discriminator block and described subscriber equipment and the magnitude relationship of predetermined threshold value, described predetermined threshold value meets: when the translational speed of described subscriber equipment is described predetermined threshold value, other communities in described a plurality of communities outside Serving cell just in time are equivalent to the noise effect of described Serving cell the gain that described a plurality of communities are obtained in the mode merged;
Described loop filter, the frequency discrimination result of controlling for the frequency discrimination described automatic frequency that deriving means obtains as a result that described automatic frequency is controlled is carried out filtering;
Described processing module, obtain a magnitude of voltage for the frequency discrimination result of controlling according to the filtered described automatic frequency of described loop filter;
Described VCXO, produce corresponding frequency oscillator signal for the described magnitude of voltage obtained according to described processing module, and described frequency oscillator signal is as the clock source of described subscriber equipment normal operation;
The frequency discrimination that described automatic frequency is controlled is deriving means as a result, specifically for, when the translational speed of described subscriber equipment is more than or equal to described predetermined threshold value, obtain the frequency discrimination result of described Serving cell from the frequency discrimination result of described a plurality of communities; And the frequency discrimination result that the frequency discrimination result of described Serving cell is controlled as described automatic frequency.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 CN102369763A (en) | 2012-03-07 |
| CN102369763B true CN102369763B (en) | 2013-12-04 |
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| EP3310096B1 (en) * | 2015-07-31 | 2019-09-11 | Huawei Technologies Co., Ltd. | Method and apparatus for dynamically combining cells |
| CN111093148A (en) * | 2019-12-27 | 2020-05-01 | 惠州Tcl移动通信有限公司 | Signal frequency adjusting method and device, storage medium and terminal |
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| CN1490962A (en) * | 2002-10-15 | 2004-04-21 | 华为技术有限公司 | Automatic frequency controller and method thereof |
| CN101482573A (en) * | 2009-02-04 | 2009-07-15 | 北京天碁科技有限公司 | Detection method and apparatus for terminal high-speed moving state |
| CN101873285A (en) * | 2009-04-24 | 2010-10-27 | 中兴通讯股份有限公司 | Device and method for correcting frequency offset |
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| JP4563278B2 (en) * | 2005-08-03 | 2010-10-13 | 三菱電機株式会社 | Automatic frequency controller |
| CN100493224C (en) * | 2006-01-04 | 2009-05-27 | 华为技术有限公司 | Frequency correcting method and device |
| CN101667846A (en) * | 2008-09-03 | 2010-03-10 | 中兴通讯股份有限公司 | Method and device for automatically controlling frequency in TD-SCDMA system |
| CN101860499B (en) * | 2009-04-13 | 2014-11-05 | 中兴通讯股份有限公司 | Method and device for correcting frequency offset |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490962A (en) * | 2002-10-15 | 2004-04-21 | 华为技术有限公司 | Automatic frequency controller and method thereof |
| CN101482573A (en) * | 2009-02-04 | 2009-07-15 | 北京天碁科技有限公司 | Detection method and apparatus for terminal high-speed moving state |
| CN101873285A (en) * | 2009-04-24 | 2010-10-27 | 中兴通讯股份有限公司 | Device and method for correcting frequency offset |
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