CN102457315A - Antenna diversity device and antenna diversity method - Google Patents
Antenna diversity device and antenna diversity method Download PDFInfo
- Publication number
- CN102457315A CN102457315A CN2010105103148A CN201010510314A CN102457315A CN 102457315 A CN102457315 A CN 102457315A CN 2010105103148 A CN2010105103148 A CN 2010105103148A CN 201010510314 A CN201010510314 A CN 201010510314A CN 102457315 A CN102457315 A CN 102457315A
- Authority
- CN
- China
- Prior art keywords
- antenna
- signal
- switch
- group
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Radio Transmission System (AREA)
Abstract
The invention provides an antenna diversity device and an antenna diversity method. The antenna diversity device comprises a plurality of groups of antennas, a switching unit, a demodulation unit, an antenna switching and selecting unit and a control unit, wherein each group of antennas in the plurality of groups of antennas comprises at least one antenna; the control unit can comprise a received signal quality detection unit, a packet detection unit and an antenna determination unit; the antenna determination unit can be realized by hardware, firmware or software; and the antenna switching and selecting unit can be realized by hardware. Through the antenna diversity device and a related method provided by the invention, the defect of reduced data transmission rate caused by burst error of a packet can be avoided by using a quick antenna switching mode, and quick switching to a proper antenna can also be realized when a data transmission channel changes.
Description
Technical field
The present invention relates to a kind of antenna diversity arrangement and antenna collection method, refer to a kind of antenna diversity arrangement and antenna collection method of switched antenna fast especially.
Background technology
For the signal quality of which antenna of right judgement relatively good; Previous technology (Taiwan patent I256 for example; No. 205) be the package informatin (for example receiving signal strength signal intensity and received signal quality etc.) that receives one section special time at a certain antenna, and then determine whether switched antenna according to statistics.Because such prior art is to be fixed on a certain antenna to receive bag; If just be when choosing quality of reception poor antenna; Then in said one section special time, the burst error that will wrap (burst error) and cause the other side transmission end to reduce the data rate (data rate) that transmits bag.
Please refer to Fig. 1 and Fig. 2, shown in Fig. 1 is Taiwan patent I256, the simplification block schematic diagram of No. 205 antenna diversity arrangement 100, and shown in Fig. 2 is Taiwan patent I256, the flow chart of No. 205 antenna collection method.This antenna collection method is to receive one section special time in an initial antenna; And write down after the statistics of received signal quality of this initial antenna; Switch to an other antenna from this initial antenna again; And write down after the statistics of this other antenna, it is relatively good that relatively these two statisticses that antenna write down decide the received signal quality of which antenna, and control switch unit 130 switches to reasonable that antenna of received signal quality.In this antenna collection method; Because switch in this section special time of an antenna and have a plurality of bags; So might cause when control switch unit 130 switches to the bad antenna of received signal quality the burst error that can wrap and cause the reduction of transmit data rate.In addition, when data transmission channel changes, also need spend the time more of a specified duration just can pick up and switch to best antenna.
Summary of the invention
Given this, one of the object of the invention is to provide a kind of antenna diversity arrangement and antenna collection method of switched antenna fast, to solve the above problems.
According to claim of the present invention; It is to disclose a kind of antenna diversity arrangement; This antenna diversity arrangement includes: organize antenna, a switching unit, a demodulating unit, antenna switching selected cell and a control unit more; Wherein, each the group antenna package in these many group antennas contains at least one antenna; This switch unit is coupled to this many group antennas, and is used for selecting a group of received signal antenna to receive a transmission signals from these many group antennas; This demodulating unit is coupled to this switch unit, and this demodulating unit includes: a bag detector is used to detect this transmission signals to produce a bag detection signal; And this antenna switching selected cell is coupled to this bag detector in this switch unit and this demodulating unit; Be used for receiving this bag detection signal, and control this switch unit and organizing between antennas switching this more to produce an antenna switch-over control signal to change choosing of this group of received signal antenna according to this bag detection signal from this bag detector.
According to claim of the present invention, it also discloses a kind of antenna collection method, and this antenna collection method includes: an antenna settings signal is provided; Come from many groups antenna, to select a group of received signal antenna to receive a transmission signals according to this antenna settings signal, wherein each group antenna package contains at least one antenna; Detect this transmission signals to produce a bag detection signal; And produce an antenna switch-over control signal according to this bag detection signal and come to switch to change choosing of this group of received signal antenna between these many group antennas.
In sum; A kind of antenna diversity arrangement provided by the present invention and antenna collection method can utilize the mode of quick switched antenna to avoid the burst error (bursterror) of wrapping and cause reducing the shortcoming of transmit data rate; And when data transmission channel changes, also can switch to suitable antenna apace.
Description of drawings
Shown in Fig. 1 is the simplification block schematic diagram of the antenna diversity arrangement of prior art.
Shown in Fig. 2 is the flow chart of the antenna collection method of prior art.
Shown in Fig. 3 is the simplification block schematic diagram of the antenna diversity arrangement of one embodiment of the invention.
Shown in Fig. 4 is the simplification block schematic diagram of the antenna diversity arrangement of another embodiment of the present invention.
Shown in Fig. 5 is the simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Fig. 6 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Fig. 7 is the flow chart of summarizing the antenna collection method of one embodiment of the invention according to the function mode of the antenna diversity arrangement of the above embodiment of the present invention and Fig. 5 and Fig. 6.
Shown in Fig. 8 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Fig. 9 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Figure 10 is another simplification sequential sketch map of a plurality of bags 0～5, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Figure 11 is another simplification sequential sketch map of bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement of the present invention.
Shown in Figure 12 is the flow chart of summarizing the antenna collection method of another embodiment of the present invention according to the function mode of the antenna diversity arrangement of the above embodiment of the present invention and Figure 10 and Figure 11.
[main element symbol description]
100: receiver 110,120: antenna
130: switching device shifter 140: tuner
150: demodulator 160: control circuit
162: bag detecting unit 164: the decision unit
166: receive signal strength detection unit 300: antenna diversity arrangement
320: the second groups of antennas of 310: the first groups of antennas
330: switch unit 340: demodulating unit
342: bag detector 350: antenna switches selected cell
360: control unit 362: the received signal quality detecting unit
364: bag detecting unit 366: antenna decision unit
370: tuned cell 0～6: bag
P: bag detection signal D: restituted signal
S: antenna switch-over control signal E: control signal
C: antenna settings signal
Embodiment
In the middle of this specification and follow-up claim, used some vocabulary to censure specific element; Should understand and have common knowledge the knowledgeable in the affiliated field; Hardware manufacturer may be called same element with different nouns, and this specification and follow-up claim are not used as distinguishing the mode of element with the difference of title, but the criterion that is used as distinguishing with the difference of element on function; Be an open term mentioned " including " in the middle of specification and the follow-up request terms in the whole text; So should be construed to " include but be not limited to ", in addition, " coupling " speech this include any directly and the indirect means that are electrically connected; Therefore; Be coupled to one second device if describe one first device in the literary composition, then represent this first device can directly be electrically connected in this second device, or be electrically connected to this second device through other device or the intersegmental ground connection of connection hand.
Please refer to Fig. 3, shown in Fig. 3 is the simplification block schematic diagram of the antenna diversity arrangement 300 of one embodiment of the invention.As shown in Figure 3; Antenna diversity arrangement 300 includes: one first group of antenna 310, one second group of antenna 320, a switching unit 330, a demodulating unit 340, an antenna switch selected cell 350, a control unit 360 and a tuned cell 370; Wherein, first group of antenna 310 and second group of antenna 320 can include at least one antenna respectively; Switch unit 330 is coupled to first group of antenna 310 and second group of antenna 320, and is used for selecting a group of received signal antenna to receive a transmission signals from first group of antenna 310 and second group of antenna 320; Demodulating unit 340 is coupled to switch unit 330; And be used for this transmission signals of demodulation to produce a restituted signal D; Wherein demodulating unit 340 also includes a bag detector 342, and bag detector 342 is used to detect this transmission signals to produce a bag detection signal P (a for example CCA (clear channelassessment)); And antenna switching selected cell 350 is coupled to the bag detector 342 in switch unit 330 and the demodulating unit 340; And be used for receiving bag detection signal P from bag detector 342; When antenna switches after selected cell 350 gets into an antenna training mode, antenna switches selected cell 350 can be controlled switch unit 330 and between first group of antenna 310 and second group of antenna 320, constantly switch to change choosing of this group of received signal antenna to produce an antenna switch-over control signal S according to bag detection signal P.Wherein, Antenna switches arbitrary packet start time point that selected cell 350 can be provided according to bag detection signal P or arbitrary end-of-packet time point to be controlled switch unit 330 and between first group of antenna 310 and second group of antenna 320, constantly switches to change choosing of this group of received signal antenna to produce antenna switch-over control signal S; Perhaps, antenna switches each packet start time point that selected cell 350 also can be provided according to bag detection signal P or each end-of-packet time point and controls switch unit 330 and between first group of antenna 310 and second group of antenna 320, constantly switch to change choosing of this group of received signal antenna to produce antenna switch-over control signal S.Note that at this antenna switches selected cell and can be realized by a Digital Logical Circuits, this is because could quick switched antenna with hardware.
Note that at this above embodiments only illustrate as of the present invention, rather than restrictive condition of the present invention, for instance, please refer to Fig. 4, shown in Fig. 4 is the simplification block schematic diagram of the antenna diversity arrangement 300 of another embodiment of the present invention.As shown in Figure 4; Control unit 360 in the antenna diversity arrangement 300 of Fig. 3 can also include: a received signal quality detecting unit 362, wraps detecting unit 364 and antenna decision unit 366; Wherein, Antenna decision unit 366 can use hardware, firmware or software to realize, antenna switches selected cell 350 and then can use hardware to realize.Received signal quality detecting unit 362 is coupled to demodulating unit 340, and is used to detect the received signal quality of first group of antenna 310 and second group of antenna 320; Bag detecting unit 364 is coupled to demodulating unit 340, and is used to produce the bag testing result of first group of antenna 310 and second group of antenna 320; And antenna decision unit 366 is coupled to received signal quality detecting unit 362, bag detecting unit 364 and antenna switching selected cell 350; And being used to provide this antenna settings signal C to control choosing of this group of received signal antenna and producing this control signal E decides antenna switching selected cell 350 whether to get into or leave this antenna training mode; Wherein after antenna decision unit 366 control antennas switch selected cell 350 these antenna training modes of entering; Pairing this antenna training mode signal quality of antenna decision unit 366 record switch unit 330 selected these group of received signal antennas; And when antenna decision unit 366 control antennas switch selected cell 350 leave this antenna training mode after or before; Antenna decision unit 366 relatively first group of antenna 310 and 320 corresponding respectively received signal qualities of second group of antenna and bag testing result and upgrades this antenna settings signal C according to this comparative result and controls choosing of this group of received signal antenna to switch selected cell 350 via antenna with switch unit 330 producing a comparative result.Wherein, antenna decision unit 366 can determine whether that control antenna switches selected cell 350 and gets into the antenna training mode according to the received signal quality of this group of received signal antenna; Perhaps, antenna decision unit 366 can determine whether that control antenna switches selected cell 350 and gets into the antenna training mode according to a special time cycle.In addition; After antenna decision unit 366 control antennas switched selected cell 350 these antenna training modes of entering, this antenna switch-over control signal S that antenna switching selected cell 350 is produced can switch to first group of antenna 310 and second group of antenna 320 another group antenna wherein by first group of antenna 310 and second group of antenna 320, one group of antenna wherein at arbitrary end-of-packet time point control switch unit 330 of bag detection signal P; Perhaps, antenna switches this antenna switch-over control signal S that selected cell 350 produced and can switch to first group of antenna 310 and second group of antenna 320 another group antenna wherein by first group of antenna 310 and second group of antenna 320, one group of antenna wherein at each end-of-packet time point control switch unit 330 of bag detection signal P.In addition, antenna decision unit 366 can determine whether that control antenna switches selected cell 350 and leaves this antenna training mode according to another special time cycle.When antenna decision unit 366 control antennas switch selected cell 350 leave this antenna training mode after or before; Antenna decision unit 366 compares first group of antenna 310 and 320 corresponding respectively received signal qualities of second group of antenna and bag testing result to produce a comparative result; And upgrade this antenna settings signal C according to this comparative result and control choosing of this group of received signal antenna with switch unit 330 to switch selected cell 350 via antenna; Wherein, Received signal quality can include signal strength signal intensity (RSSI), signal noise ratio (SNR) and the channel condition information information such as (CSI) of receiving, and the bag testing result can include information such as bit error rate and packet error rate.
For the operation about the antenna diversity arrangement 300 of the above embodiment of the present invention further clearly is described; Please refer to Fig. 5, shown in Fig. 5 is the simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.As shown in Figure 5, for instance, the initial signal value of the antenna settings signal C that antenna decision unit 366 is provided is 0, just is to choose first group of antenna 310 to be used as this group of received signal antenna at the beginning; The initial signal value of the control signal E that antenna decision unit 366 is produced is 0, and just the selected cell 350 of antenna switching does not at the beginning also get into this antenna training mode; When not receiving bag, the signal value of bag detection signal P is 0, and in receiving the process of bag, the signal value of bag detection signal P is 1; Then, the signal value of the control signal E that is produced when antenna decision unit 366 is when 0 changes 1 into, and this representative antennas is switched selected cell 350 and begun to get into this antenna training mode; And after antenna switched selected cell 350 these antenna training modes of entering, bag 1 was by 310 receptions of first group of antenna, then; At bag 1 concluding time point, the signal value that antenna switches this antenna switch-over control signal S that selected cell 350 produced can change 1 into from 0, and just antenna switches this antenna switch-over control signal S that selected cell 350 produced and can control switch unit 330 and switch to second group of antenna 320 by first group of antenna 310; So wrapping 2 is by 320 receptions of second group of antenna, then, at the concluding time point of bag 2; The signal value of this antenna switch-over control signal S can change 0 into from 1, and just this antenna switch-over control signal S can control switch unit 330 and switch to first group of antenna 310 by second group of antenna 320, is by 310 receptions of first group of antenna so wrap 3; Then; At bag 3 concluding time point, the signal value of this antenna switch-over control signal S can change 1 into from 0, and just this antenna switch-over control signal S can control switch unit 330 and switch to second group of antenna 320 by first group of antenna 310; So wrapping 4 is by 320 receptions of second group of antenna; Then, at the concluding time point of bag 4, the signal value of this antenna switch-over control signal S can change 0 into from 1; Just this antenna switch-over control signal S can control switch unit 330 and switch to first group of antenna 310 by second group of antenna 320; So wrapping 5 is by 310 receptions of first group of antenna, then, at the concluding time point of bag 5; The signal value of this antenna switch-over control signal S can change 1 into from 0; Just this antenna switch-over control signal S can control switch unit 330 and switch to second group of antenna 320 by first group of antenna 310, and in this process, control unit 360 can detect and write down the antenna training mode signal quality of switch unit 330 selected first group of antenna 310 and second group of antenna 320 according to aforesaid restituted signal D; Then; The signal value of the control signal E that is produced when antenna decision unit 366 is when 1 changes 0 into, and this representative antennas is switched selected cell 350 and begun to leave this antenna training mode, and when antenna switches selected cell 350 and leaves this antenna training mode; The signal value of this antenna switch-over control signal S can change 0 into from 1; Just this antenna switch-over control signal S can control switch unit 330 and switch to first group of antenna 310 by second group of antenna 320, in other words, controls switch unit 330 exactly and switches back selected at the beginning that group of received signal antenna.And after antenna switching selected cell 350 leaves this antenna training mode; Control unit first group of antenna 310 of 360 comparisons and 320 two corresponding respectively antenna training mode signal qualitys of second group of antenna are to produce a comparative result; And upgrade the signal value of this antenna settings signal C according to this comparative result; The antenna training mode signal quality of supposing second group of antenna 320 is better than the antenna training mode signal quality of 310 second groups of antennas 320 of first group of antenna; So the signal value of this antenna settings signal C can be updated to 1, therefore, bag 6 can be by 320 receptions of second group of antenna.
In addition, please refer to Fig. 6, shown in Fig. 6 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.The difference of the simplification sequential sketch map of the simplification sequential sketch map of Fig. 6 and Fig. 5 is; In Fig. 6; After antenna switching selected cell 350 got into these antenna training modes, each packet start time point that antenna switches selected cell 350 to be provided according to bag detection signal P was controlled switch unit 330 with generation antenna switch-over control signal S and between first group of antenna 310 and second group of antenna 320, is constantly switched to change choosing of this group of received signal antenna.Owing to except above-mentioned different characteristic, do not have other different part between Fig. 6 and Fig. 5, therefore,, do not add to give unnecessary details the detailed content of Fig. 6 at this for for purpose of brevity.
Then; Please refer to Fig. 7, shown in Fig. 7 is to summarize the flow chart of the antenna collection method of one embodiment of the invention according to the function mode of the antenna diversity arrangement 300 of the above embodiment of the present invention and Fig. 5 and Fig. 6, if can obtain identical result substantially; Then the step in the flow process not necessarily need be shone order shown in Figure 7 and carried out; Also not necessarily need be continuous, that is to say, be the step that can insert other between these steps.The antenna collection method of present embodiment includes the following step:
Step 500: beginning.
Step 502: an antenna settings signal is provided.
Step 504: come from many groups antenna, to select a group of received signal antenna to receive a transmission signals according to this antenna settings signal, wherein each group antenna package contains at least one antenna.
Step 506: is this transmission signals of demodulation producing a restituted signal, and decision gets into an antenna training mode? If then execution in step 508; If not, rebound step 504 then.
Step 508: detect and write down the pairing antenna training mode signal quality of selected this group of received signal antenna according to this restituted signal, distinguished corresponding a plurality of antenna training mode signal qualitys to obtain these many group antennas.
Step 510: switch to another group antenna.
Is step 512: this antenna training mode left in decision? If then execution in step 514; If not, rebound step 508 then.
Step 514: be chosen in and get into this antenna training mode selected this group of received signal antenna before.
Step 516: relatively should be many group antennas institute respectively these a plurality of antenna training mode signal qualitys of correspondence to produce a comparative result.
Step 518: upgrade this antenna settings signal according to this comparative result.
Note that in the antenna collection method at Fig. 7 of the present invention that at this step 514 is to belong to optionally step, and is just omissible.Please refer to Fig. 8, shown in Fig. 8 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.The difference of the simplification sequential sketch map of the simplification sequential sketch map of Fig. 8 and Fig. 5 is, in Fig. 5, when antenna switching selected cell 350 leaves this antenna training mode; The signal value of this antenna switch-over control signal S is affected; In other words, before producing comparative result, antenna switch-over control signal S can be returned to and get into this antenna training mode set point before; And in Fig. 8; When antenna switching selected cell 350 left this antenna training mode, the signal value of this antenna switch-over control signal S was not affected, in other words; Before producing comparative result, antenna switch-over control signal S can keep the set point when leaving this antenna training mode.Owing to except above-mentioned different characteristic, do not have other different part between Fig. 8 and Fig. 5, therefore,, do not add to give unnecessary details the detailed content of Fig. 8 at this for for purpose of brevity.
In addition; In another embodiment, step 516 also can be accomplished before this antenna training mode is left in decision, for instance; Before leaving this antenna training mode; Method of the present invention can produce this comparative result after through a specific training time, also can after obtaining the antenna training mode signal quality of a specific quantity, produce this comparative result, in other words; In the present embodiment, method of the present invention will determine to leave this antenna training mode after producing this comparative result.Please refer to Fig. 9, shown in Fig. 9 is another simplification sequential sketch map of a plurality of bags 0～6, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.The difference of the simplification sequential sketch map of the simplification sequential sketch map of Fig. 9 and Fig. 8 is; In Fig. 9; Before antenna switching selected cell 350 leaves this antenna training mode; Control unit first group of antenna 310 of 360 comparisons and 320 two corresponding respectively antenna training mode signal qualitys of second group of antenna are to produce a comparative result; So the variation of antenna settings signal C can be switched at antenna and changed when selected cell 350 leaves this antenna training mode, and makes antenna switch-over control signal S control switch unit 330 according to antenna settings signal C, to select suitable antenna.Owing to except above-mentioned different characteristic, do not have other different part between Fig. 9 and Fig. 8, therefore,, do not add to give unnecessary details the detailed content of Fig. 9 at this for for purpose of brevity.
Please note at this; The above embodiments only illustrate as of the present invention; Rather than restrictive condition of the present invention; For instance, please refer to Figure 10, shown in Figure 10 is another simplification sequential sketch map of a plurality of bags 0～5, bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.As shown in Figure 9, for instance, the initial signal value of the antenna settings signal C that antenna decision unit 366 is provided is 0, just is to choose first group of antenna 310 to be used as this group of received signal antenna at the beginning; The initial signal value of the control signal E that antenna decision unit 366 is produced is 0, and just the selected cell 350 of antenna switching does not at the beginning also get into this antenna training mode; When not receiving bag; The signal value of bag detection signal P is 0; And in receiving the process of bag, the signal value of bag detection signal P is 1, simultaneously; Demodulating unit 340 can judge whether to receive any bag (just between given period, having judged whether to receive any transmission signals in the T) in the T between a given period; The signal value of the control signal E that is produced in antenna decision unit 366 is (just after antenna switches selected cell 350 these antenna training modes of entering) after 0 changes 1 into, receives bag (shown in figure 10) if demodulating unit 340 is judged in the T between given period, and then the operation of antenna diversity arrangement 300 is just identical with the description of this specification when describing the simplification sequential sketch map of Fig. 5; For for purpose of brevity, do not add to give unnecessary details at this; If judging in the T, demodulating unit 340 do not receive bag (shown in figure 10) between given period; The signal value of this antenna switch-over control signal S that antenna switching selected cell 350 is produced can change and (for example change 0 into from 1; Shown in figure 10); This antenna switch-over control signal S that the selected cell 350 of antenna switching is just produced can control switch unit 330 and switch reception signal antenna (for example switching to first group of antenna 310 by second group of antenna 320, shown in figure 10).
In addition, please refer to Figure 11, shown in Figure 11 is another simplification sequential sketch map of bag detection signal P, antenna switch-over control signal S, control signal E and antenna settings signal C in the antenna diversity arrangement 300 of the present invention.Shown in figure 11; For instance; When the signal value of the control signal E that is produced in antenna decision unit 366 maintains 0 (just when antenna switches selected cell 350 and do not get into this antenna training mode); If judging in the T, demodulating unit 340 do not receive bag (shown in figure 11) between given period; The signal value that antenna switches this antenna switch-over control signal S that selected cell 350 produced can change and (for example change 1 and change 0 into from 1 into from 0; Shown in figure 11), this antenna switch-over control signal S that the selected cell 350 of antenna switching is just produced can control switch unit 330 and switch reception signal antenna (for example switched to second group of antenna 320 and switched to first group of antenna 310 by second group of antenna 320 by first group of antenna 310, be shown in figure 11).
Then; Please refer to Figure 12, shown in Figure 12 is to summarize the flow chart of the antenna collection method of another embodiment of the present invention according to the function mode of the antenna diversity arrangement 300 of the above embodiment of the present invention and Figure 10 and Figure 11, if can obtain identical result substantially; Then the step in the flow process not necessarily need be shone order shown in Figure 12 and carried out; Also not necessarily need be continuous, that is to say, be the step that can insert other between these steps.The antenna collection method of present embodiment includes the following step:
Step 700: beginning.
Step 702: an antenna settings signal is provided.
Step 704: come from many groups antenna, to select a group of received signal antenna to receive a transmission signals according to this antenna settings signal, wherein each group antenna package contains at least one antenna.
Step 706: is this transmission signals of demodulation producing a restituted signal, and decision gets into an antenna training mode? If then execution in step 708; If not, execution in step 722 then.
Step 708: judged whether to receive any transmission signals between a given period? If then execution in step 710; If not, execution in step 712 then.
Step 710: detect according to this restituted signal how group antennas are distinguished corresponding a plurality of antenna training mode signal qualitys to obtain this with writing down the pairing antenna training mode signal quality of selected this group of received signal antenna.
Step 712: switch to another group antenna.
Is step 714: this antenna training mode left in decision? If then execution in step 716; If not, rebound step 708 then.
Step 716: be chosen in and get into this antenna training mode selected this group of received signal antenna before.
Step 718: relatively should be many group antennas institute respectively these a plurality of antenna training mode signal qualitys of correspondence to produce a comparative result.
Step 720: upgrade this antenna settings signal according to this comparative result.
Step 722: judged whether to receive any transmission signals between a given period? If then execution in step 704; If not, execution in step 724 then.
Step 724: switch to another group antenna.
Note that in the antenna collection method at Figure 12 of the present invention that at this step 716 is to belong to optionally step, and is just omissible.In addition; In another embodiment, step 718 also can be accomplished before this antenna training mode is left in decision, for instance; Before leaving this antenna training mode; Method of the present invention can produce this comparative result after through a specific training time, also can after obtaining the antenna training mode signal quality of a specific quantity, produce this comparative result, in other words; In the present embodiment, method of the present invention will determine to leave this antenna training mode after producing this comparative result.
In sum; A kind of antenna diversity arrangement provided by the present invention and correlation technique can utilize the mode of quick switched antenna to avoid the burst error (burst error) of wrapping and cause reducing the shortcoming of transmit data rate; And when data transmission channel changes, also can switch to suitable antenna apace.
The above is merely the preferred embodiments of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (16)
1. antenna diversity arrangement includes:
Many group antennas, each group antenna package contains at least one antenna;
One switching unit is coupled to said many group antennas, is used for selecting a group of received signal antenna to receive a transmission signals from said many group antennas;
One demodulating unit is coupled to said switch unit, and said demodulating unit comprises
One bag detector is used to detect said transmission signals to produce a bag detection signal; And
One antenna switches selected cell; Be coupled to the said bag detector in said switch unit and the said demodulating unit; Be used for receiving said bag detection signal, and control said switch unit and between said many group antennas, switch to produce an antenna switch-over control signal to change choosing of a said group of received signal antenna according to said bag detection signal from said bag detector.
2. antenna diversity arrangement according to claim 1; Also comprise a control unit; Be coupled to said demodulating unit and said antenna and switch selected cell; The control signal that produces said control unit decides said antenna to switch selected cell and whether gets into or leave an antenna training mode; When said antenna switched selected cell and gets into said antenna training mode, said antenna switches arbitrary packet start time point that selected cell provided according to said bag detection signal or arbitrary end-of-packet time point to be controlled said switch unit and between said many group antennas, switches to change choosing of a said group of received signal antenna to produce said antenna switch-over control signal.
3. antenna diversity arrangement according to claim 1; Also comprise a control unit; Be coupled to said demodulating unit and said antenna and switch selected cell; The control signal that produces said control unit decides said antenna to switch selected cell and whether gets into or leave an antenna training mode; When said antenna switched selected cell and gets into said antenna training mode, said antenna switches each packet start time point that selected cell provided according to said bag detection signal or each end-of-packet time point to be controlled said switch unit and between said many group antennas, switches to change choosing of said group of received signal antenna to produce said antenna switch-over control signal.
4. antenna diversity arrangement according to claim 1, wherein, said demodulating unit is used for the said transmission signals of demodulation producing a restituted signal, and said antenna diversity arrangement also includes:
One control unit; Be coupled to said demodulating unit and said antenna and switch selected cell; Be used for receiving said restituted signal and providing an antenna settings signal to control choosing of a said group of received signal antenna from said demodulating unit; And produce a control signal and decide said antenna to switch selected cell whether to get into or leave an antenna training mode; Wherein controlling said antenna when said control unit switches after selected cell gets into said antenna training mode; Said control unit detects and writes down the pairing antenna training mode signal quality of the selected said group of received signal antenna of said switch unit according to said restituted signal; And the corresponding respectively a plurality of antenna training mode signal qualitys of the more said many group antennas of said control unit institute to be producing a comparative result, and the said comparative result of foundation upgrades said antenna settings signal to determine choosing of a said group of received signal antenna.
5. antenna diversity arrangement according to claim 4, wherein, after said antenna switching selected cell got into said antenna training mode, said antenna switched selected cell and produces said antenna switch-over control signal according to said bag detection signal.
6. antenna diversity arrangement according to claim 4; Wherein, After said antenna switching selected cell left said antenna training mode, said antenna switched selected cell and produces said antenna switch-over control signal according to the said antenna settings signal after upgrading.
7. antenna diversity arrangement according to claim 4, wherein, each antenna training mode signal quality includes a received signal quality and a bag testing result, and said control unit includes:
One received signal quality detecting unit is coupled to said demodulating unit, is used to detect the received signal quality of said many group antennas;
One bag detecting unit is coupled to said demodulating unit, is used to produce the bag testing result of said many group antennas; And
One antenna decision unit; Be coupled to said received signal quality detecting unit, said bag detecting unit and said antenna and switch selected cell; And said antenna decision unit is used to provide said antenna settings signal to control choosing of said group of received signal antenna and produces said control signal and decides said antenna to switch selected cell whether to get into or leave said antenna training mode; Wherein after the said antenna switching of said antenna decision unit controls selected cell gets into said antenna training mode; The pairing said antenna training mode signal quality of the said antenna decision selected said group of received signal antenna of the said switch unit of unit record; And the corresponding respectively a plurality of antenna training mode signal qualitys of the more said many group antennas in said antenna decision unit institute to be producing a comparative result, and upgrade said antenna settings signal to control choosing of said group of received signal antenna via said antenna switching selected cell and said switch unit according to said comparative result.
8. antenna diversity arrangement according to claim 7, wherein, the received signal quality of the said group of received signal antenna of said antenna decision unit foundation determines whether controlling said antenna switching selected cell and gets into said antenna training mode.
9. antenna diversity arrangement according to claim 7, wherein, said antenna decision unit determines whether controlling said antenna switching selected cell according to a special time cycle and gets into said antenna training mode.
10. antenna diversity arrangement according to claim 4, wherein, said demodulating unit has judged whether to receive that any transmission signals produces one and judges that signal to said antenna switches selected cell in also between a given period; And when said antenna switch selected cell get into said antenna training mode after and said judgement signal when pointing out not receive any transmission signals in said demodulating unit is between said given period, said antenna switches selected cell can be controlled said switch unit and change choosing of a said group of received signal antenna.
11. antenna diversity arrangement according to claim 4, wherein, said demodulating unit has judged whether to receive that any transmission signals produces one and judges that signal to said antenna switches selected cell in also between a given period; And when said antenna switched selected cell and do not get into said antenna training mode and said judgement signal and point out not receive any transmission signals in said demodulating unit is between said given period, said antenna switches selected cell can be controlled said switch unit and change choosing of a said group of received signal antenna.
12. antenna diversity arrangement according to claim 1, wherein, said antenna switches selected cell to be realized by a Digital Logical Circuits.
13. an antenna collection method includes:
One antenna settings signal is provided;
Come from many groups antenna, to select a group of received signal antenna to receive a transmission signals according to said antenna settings signal, wherein each group antenna package contains at least one antenna;
Detect said transmission signals to produce a bag detection signal; And
Producing an antenna switch-over control signal according to said bag detection signal comes between said many group antennas, to switch to change choosing of a said group of received signal antenna.
14. antenna collection method according to claim 13 wherein, produces next between said many group antennas, the switching of an antenna switch-over control signal according to said bag detection signal and includes with the step of choosing that changes a said group of received signal antenna:
In an antenna training mode; According to arbitrary packet start time point or the arbitrary end-of-packet time point that said bag detection signal is provided, produce said antenna switch-over control signal and come between said many group antennas, to switch to change choosing of a said group of received signal antenna.
15. antenna collection method according to claim 13 wherein, produces next between said many group antennas, the switching of an antenna switch-over control signal according to said bag detection signal and includes with the step of choosing that changes a said group of received signal antenna:
In an antenna training mode,, produce said antenna switch-over control signal and between said many group antennas, switch to change choosing of a said group of received signal antenna according to a packet start time point or the end-of-packet time point that said bag detection signal is provided.
16. antenna collection method according to claim 13 also includes:
The said transmission signals of demodulation is to produce a restituted signal;
Whether decision gets into or leaves an antenna training mode;
After getting into said antenna training mode; Between said many group antennas, switch changing choosing of a said group of received signal antenna, and detect and write down the pairing antenna training mode signal quality of a selected said group of received signal antenna and distinguished corresponding a plurality of antenna training mode signal qualitys to obtain said many group antennas according to said restituted signal;
More said many group antennas institute respectively said a plurality of antenna training mode signal qualitys of correspondence to produce a comparative result; And
Upgrade said antenna settings signal to control choosing of a said group of received signal antenna according to said comparative result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510314.8A CN102457315B (en) | 2010-10-18 | 2010-10-18 | Antenna diversity device and antenna diversity method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010510314.8A CN102457315B (en) | 2010-10-18 | 2010-10-18 | Antenna diversity device and antenna diversity method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102457315A true CN102457315A (en) | 2012-05-16 |
| CN102457315B CN102457315B (en) | 2014-12-17 |
Family
ID=46040049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010510314.8A Active CN102457315B (en) | 2010-10-18 | 2010-10-18 | Antenna diversity device and antenna diversity method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102457315B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759271A (en) * | 2015-01-07 | 2016-07-13 | 通用汽车环球科技运作有限责任公司 | Spatial cognitive radar |
| CN103780299B (en) * | 2012-10-19 | 2017-04-12 | 松下知识产权经营株式会社 | Antenna switchover receiving system and transmitting system corresponding to same |
| CN106712800A (en) * | 2017-01-20 | 2017-05-24 | 广东欧珀移动通信有限公司 | WIFI antenna component and terminal device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200618514A (en) * | 2004-11-26 | 2006-06-01 | Realtek Semiconductor Corp | Method and apparatus for antenna diversity |
| CN1790944A (en) * | 2004-12-16 | 2006-06-21 | 松下电器产业株式会社 | Diversity receiver and diversity reception method |
| CN1976506A (en) * | 2001-08-06 | 2007-06-06 | 三洋电机株式会社 | Radio base station apparatus, radio terminal apparatus, mobile communication system, and reception operation control program |
| TW200740140A (en) * | 2006-04-04 | 2007-10-16 | Benq Corp | Method and apparatus for selecting antenna |
| US20090027260A1 (en) * | 2007-07-17 | 2009-01-29 | Viasat, Inc. | Robust Satellite Detection And Maintenance Using A Multi-Beam Antenna System |
| CN101527589A (en) * | 2008-03-06 | 2009-09-09 | 瑞昱半导体股份有限公司 | Receiving antenna selection device for multiple-input and multiple-output wireless system and method thereof |
| US8010056B2 (en) * | 2006-01-23 | 2011-08-30 | Sony Corporation | Method of selecting one of dual antennas |
| US20120087431A1 (en) * | 2010-10-08 | 2012-04-12 | Der-Zheng Liu | Antenna diversity apparatus and antenna diversity method |
-
2010
- 2010-10-18 CN CN201010510314.8A patent/CN102457315B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976506A (en) * | 2001-08-06 | 2007-06-06 | 三洋电机株式会社 | Radio base station apparatus, radio terminal apparatus, mobile communication system, and reception operation control program |
| TW200618514A (en) * | 2004-11-26 | 2006-06-01 | Realtek Semiconductor Corp | Method and apparatus for antenna diversity |
| CN1790944A (en) * | 2004-12-16 | 2006-06-21 | 松下电器产业株式会社 | Diversity receiver and diversity reception method |
| US8010056B2 (en) * | 2006-01-23 | 2011-08-30 | Sony Corporation | Method of selecting one of dual antennas |
| TW200740140A (en) * | 2006-04-04 | 2007-10-16 | Benq Corp | Method and apparatus for selecting antenna |
| US20090027260A1 (en) * | 2007-07-17 | 2009-01-29 | Viasat, Inc. | Robust Satellite Detection And Maintenance Using A Multi-Beam Antenna System |
| CN101527589A (en) * | 2008-03-06 | 2009-09-09 | 瑞昱半导体股份有限公司 | Receiving antenna selection device for multiple-input and multiple-output wireless system and method thereof |
| US20120087431A1 (en) * | 2010-10-08 | 2012-04-12 | Der-Zheng Liu | Antenna diversity apparatus and antenna diversity method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780299B (en) * | 2012-10-19 | 2017-04-12 | 松下知识产权经营株式会社 | Antenna switchover receiving system and transmitting system corresponding to same |
| CN105759271A (en) * | 2015-01-07 | 2016-07-13 | 通用汽车环球科技运作有限责任公司 | Spatial cognitive radar |
| US10247820B2 (en) | 2015-01-07 | 2019-04-02 | GM Global Technology Operations LLC | Spatial cognitive radar |
| CN106712800A (en) * | 2017-01-20 | 2017-05-24 | 广东欧珀移动通信有限公司 | WIFI antenna component and terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102457315B (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8665980B2 (en) | Antenna diversity apparatus and antenna diversity method | |
| CN100385832C (en) | Multiple RF signal switching apparatus | |
| US8131235B2 (en) | Radio receiver for hybrid broadcast systems | |
| US20090042529A1 (en) | Antenna diversity system for relatively broadband broadcast reception in vehicles | |
| US20060026315A1 (en) | Apparatus and method of establishing data transmission speed for serial advanced technology attachment interface | |
| CN101026406B (en) | Input channel switching method of space diversity receiving device | |
| CN101461160A (en) | Receiver | |
| CN101072381A (en) | Terminal control message processing method and message processor and media server | |
| CN102457315A (en) | Antenna diversity device and antenna diversity method | |
| CN102957640A (en) | Signal evaluation system and method | |
| KR101120019B1 (en) | Apparatus and method for receiving and reproducing broadcasting data through wireless communication | |
| CN102523474A (en) | Signal receiving test system based on digital television terrestrial broadcasting (DTTB) | |
| CN102457311B (en) | Antenna diversity system | |
| US8761279B2 (en) | Reception apparatus and method, demodulation apparatus and method, and program | |
| CN103152297B (en) | Narrowband interference detectors, signal receiver and arrowband interference detection method and signal acceptance method | |
| CN1988727B (en) | Wireless communication device | |
| JP4956127B2 (en) | Broadcast receiver | |
| US20090190041A1 (en) | Television Receiver | |
| CN101868922A (en) | Diversity reception device and diversity reception method | |
| CN201717871U (en) | Antenna selecting device in TV card module | |
| JP2008092383A (en) | System for measuring radio characteristic and its measuring method | |
| JP2002026755A (en) | Digital broadcast receiver | |
| JPH11252193A (en) | Digital radio communication system, digital radio communication method, and storage medium storing the digital radio communication method | |
| CN102957639A (en) | Signal evaluation system and method using channel estimation | |
| JP4537222B2 (en) | Digital broadcast receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |