CN107547096A - The AGC methods of adjustment of more radio-frequency channels - Google Patents
The AGC methods of adjustment of more radio-frequency channels Download PDFInfo
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- CN107547096A CN107547096A CN201610489195.XA CN201610489195A CN107547096A CN 107547096 A CN107547096 A CN 107547096A CN 201610489195 A CN201610489195 A CN 201610489195A CN 107547096 A CN107547096 A CN 107547096A
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Abstract
The invention provides a kind of AGC methods of adjustment of more radio-frequency channels, by the data receiver initial time for presetting each radio-frequency channel；Then, each radio-frequency channel is started working respectively according to respective data receiver initial time, and the time point of Mobile state AGC adjustment is entered with each radio-frequency channel of staggering；Mobile state AGC adjustment is independently entered in each radio-frequency channel according to respective initial AGC.Because the dynamic AGC adjustment realizations of each radio-frequency channel are avoided the peak hour progresss, so as to avoid the occurrence of the situation that DSP has little time processing, suitable for the dynamic AGC adjustment of more radio-frequency channels, meet actual demand.
Description
Technical field
The present invention relates to technical field of communication field, more particularly to a kind of AGC methods of adjustment of more radio-frequency channels.
Background technology
Wireless communication receiver carries out usually requiring to depend on AGC (Automatic Gain during rf signal reception
Control, automatic growth control) technology ensures a series of relatively stable reception signals of output, so as to it is follow-up further
Carry out signal transacting.AGC realization can be divided into hardware realization and software is realized, wherein AGC software is realized based on as shown in Figure 1
Digital AGC principle carry out.
When receiver is needing to receive a series of signals without the frequency of prior information (such as mobile terminal is being carried out
During the cell detection of cell searching or unknown frequency), it is necessary to be quickly found out metastable AGC value by AGC algorithms.Cause
This, this process need by a series of rapid feedbacks adjust process, that is, receive a bit of data assess immediately AGC adjustment amounts should
The a bit of data receiver under.This control method, commonly referred to as dynamic AGC adjust or adaptive AGC adjustment.
It is specific as shown in Fig. 2 first, radio-frequency channel receives one by taking software dynamic AGC adjustment on single radio-frequency channel as an example
Segment data, in receive process except most start when, using an initial AGC outside, at regular intervals (such as T time) progress one
Secondary AGC adjustment；Each AGC adjustment is adjusted based on the previous time T new AGC values being calculated；AGC adjusts interval time T
In the data received for the previous period be used for new AGC estimation.Specifically, being adjusted in AGC interval time T, radio frequency leads to
Road produces interruption when receiving the data of predetermined quantity, and the data received before notifying DSP that Rigen is according to interruption in remaining time are entered
The new AGC of row calculating, and new AGC is uploaded to radio-frequency channel and received for lower one piece of data.
With the development of carrier aggregation in mobile communication in recent years, new mobile communication terminal generally there are multiple radio frequencies to lead to
Road, mainly include the advantages of more radio-frequency channels：1) allow to carry out data receiver simultaneously, be advantageous to increase transmission rate；2) it is suitable
Apply to cell searching work, be advantageous to accelerate the process of cell searching.The performance of new mobile communication terminal is improved with AGC's
Adjust it is closely related, such as by single radio-frequency channel AGC methods of adjustment be applied to more radio-frequency channels AGC adjust when, each radio frequency leads to
Road enters Mobile state AGC adjustment respectively, in fact it could happen that phenomenon as shown in Figure 3, i.e. DSP have little time to handle radio-frequency channel 1 and radio frequency
The situation for the data that passage 2 receives.As can be seen here, single radio-frequency channel AGC methods of adjustment are not suitable for the AGC tune of more radio-frequency channels
Whole, therefore, the research and development for the AGC methods of adjustment of more radio-frequency channels turn into the task of top priority.
The content of the invention
It is an object of the invention to provide a kind of AGC methods of adjustment of more radio-frequency channels, with suitable for more radio-frequency channels
AGC is adjusted.
In order to solve the above technical problems, the present invention provides a kind of AGC methods of adjustment of more radio-frequency channels, more radio frequencies lead to
The AGC methods of adjustment in road include：
Set the data receiver initial time of each radio-frequency channel；
Each radio-frequency channel is started working respectively according to respective data receiver initial time, with each radio-frequency channel of staggering
Enter the time point of Mobile state AGC adjustment；
Mobile state AGC adjustment is independently entered in each radio-frequency channel according to respective initial AGC.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, the data receiver for setting each radio-frequency channel rises
The process of time beginning includes：
Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；
The ID of the data receiver initial time of single radio frequency passage and radio-frequency channel is bound；
The number of each radio-frequency channel is calculated according to the ID at the terminal time interval, the quantity of radio-frequency channel and radio-frequency channel
According to reception initial time.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, when the data receiver of each radio-frequency channel originates
Between meet following condition：
tstart=(nN+i) Ta,
Wherein, tstartRepresent data receiver initial time；N represents the quantity of radio-frequency channel；TaRepresent terminal time interval；
I represents the ID, 0≤i of each radio-frequency channel<N, the ID of the radio-frequency channel serial number since 0；N is the integer more than or equal to 0.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, the data receiver for setting each radio-frequency channel rises
The process of time beginning includes：
Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；
The ID for first of single radio frequency passage being played break period and radio-frequency channel is bound；
The of each radio-frequency channel is calculated according to the ID at the terminal time interval, the quantity of radio-frequency channel and radio-frequency channel
One is played the break period；
The break period anti-data receiver initial time for pushing away each radio-frequency channel is played according to the first of each radio-frequency channel.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, first of each radio-frequency channel rises when interrupting
Between meet following condition：
tint=(nN+i) Ta,
Wherein, tintRepresent that first is played the break period；N represents the quantity of radio-frequency channel；TaRepresent terminal time interval；i
Represent the ID of each radio-frequency channel, 0≤i<N, the ID of the radio-frequency channel serial number since 0；N is the integer more than or equal to 0.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, first according to each radio-frequency channel
Play the break period anti-data receiver initial time for pushing away each radio-frequency channel and use equation below：
tstart=tint–Tagc_rx,
Wherein, tstartRepresent data receiver initial time；tintRepresent that first is played the break period；Tagc_rxWhen representing first
Between section.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, the process bag at the division terminal time interval
Include：
Set time interval, first time period and the second time period of AGC adjustment, the time interval of the AGC adjustment etc.
In first time period and second time period sum, based on the data received in the first time period in the second time period
AGC is calculated, and the AGC of calculating is fed back into current radio frequency passage；
Time interval, first time period and the quantity set of the radio-frequency channel terminal time interval adjusted according to AGC, it is described
Interval was more than or equal to second time period and met all radio-frequency channels the needs of being staggered parallel terminal time.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, the terminal is to be moved with more radio-frequency channels
Terminal.
Optionally, in the AGC methods of adjustment of described more radio-frequency channels, the terminal is whole to support CA LTE movements
End.
In the AGC methods of adjustment of more radio-frequency channels provided by the present invention, by presetting each radio-frequency channel
Data receiver initial time；Then, each radio-frequency channel is started working respectively according to respective data receiver initial time, with mistake
Open the time point that Mobile state AGC adjustment is entered in each radio-frequency channel；Each radio-frequency channel is independently entered according to respective initial AGC
Mobile state AGC is adjusted.Because the dynamic AGC adjustment realizations of each radio-frequency channel are avoided the peak hour progress, have little time so as to avoid the occurrence of DSP
The situation of processing, adjusted suitable for the dynamic AGC of more radio-frequency channels, meet actual demand.
Brief description of the drawings
Fig. 1 is digital AGC principle schematic；
Fig. 2 is dynamic AGC processing software implementing course schematic diagrames；
When Fig. 3 is the AGC adjustment that single radio-frequency channel AGC methods of adjustment are applied to more radio-frequency channels, dynamic AGC processing softwares
Implementation process schematic diagram；
Fig. 4 is the flow chart of the AGC methods of adjustment of more radio-frequency channels of the present invention；
Fig. 5 is the AGC method of adjustment implementation process schematic diagrames of more radio-frequency channels in the embodiment of the present invention one；
Fig. 6 is the AGC method of adjustment implementation process schematic diagrames of more radio-frequency channels in the embodiment of the present invention two.
Embodiment
The AGC methods of adjustment of more radio-frequency channels proposed by the present invention are made below in conjunction with the drawings and specific embodiments further
Describe in detail.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that accompanying drawing
Non- accurately ratio is used using very simplified form and, only implemented conveniently, lucidly to aid in illustrating the present invention
The purpose of example.
The core concept of the present invention：Based on the starting working time for presetting each radio-frequency channel, with another each radio frequency
Passage according to it is respective starting the working time start working respectively, with each radio-frequency channel of staggering enter Mobile state AGC adjustment when
Between point, implementation avoid the peak hour dynamic AGC adjustment, and then avoid DSP have little time processing situation so that much dynamics of radio-frequency channel
The normal orderly progress of AGC adjustment.
Fig. 4 is refer to, it is the flow chart of the AGC methods of adjustment of more radio-frequency channels of the present invention.More radio-frequency channels
AGC methods of adjustment comprise the following steps：
First, step S1 is performed, sets the data receiver initial time of each radio-frequency channel；
Then, step S2 is performed, each radio-frequency channel is started working respectively according to respective data receiver initial time, with
Stagger each radio-frequency channel enter Mobile state AGC adjustment time point；
Then, step S3 is performed, each radio-frequency channel is independently entered Mobile state AGC according to respective initial AGC and adjusted.
In order to be better understood from obtaining the concrete scheme of the data receiver initial time of each radio-frequency channel in step S1, under
Request in person in conjunction with the embodiments one and the content of embodiment two understood.
Embodiment one
Fig. 5 is refer to, it is the AGC method of adjustment implementation process schematic diagrames of more radio-frequency channels in the present embodiment.With reference to Fig. 5
Understand, the present embodiment is realized each by the difference between directly presetting the data receiver initial time of each radio-frequency channel
The dynamic AGC adjustment work of individual radio-frequency channel is mutually staggered progress.
In the present embodiment, the process of the data receiver initial time of each radio-frequency channel of setting includes：
S10：Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；
Please continue to refer to Fig. 5, the process at the division terminal time interval includes：
Set time interval T, the first time period T of AGC adjustmentagc_rxAnd second time period Tagc_calc_rsv, the AGC tune
Whole time interval is equal to first time period and second time period sum (i.e. T=Tage_rx+Tagc_calc_rsv), at described second
Between section Tagc_calc_rsvIt is interior to be based on the first time period Tagc_rxThe data of interior reception calculate AGC, and the AGC of calculating is fed back to
Current radio frequency passage, for the AGC adjustment in the time interval T of next AGC adjustment, the time interval T of follow-up every AGC adjustment
In dynamic AGC adjustment according to this principle circulate carry out.The maximum demand time of actual DSP processing is set as Tagc_calc, it is desirable to
Tagc_calc≤Tagc_calc_rsv.Wherein, T, Tagc_rxAnd Tagc_calcIt is theory analysis and actually obtains set-point.
Time interval T, the first time period T adjusted according to AGCagc_rxBetween the quantity N setting terminal times of radio-frequency channel
Every Ta, wherein, TaMeet following condition：
1)Ta≥Tagc_calc, i.e., calculating and feedback of the reserved enough time for AGC；
2)Meet that N number of radio-frequency channel is staggered parallel；Wherein, the present invention is maximum allowable and Mobile state receives
Radio-frequency channel quantity
S11：The ID of the data receiver initial time of single radio frequency passage and radio-frequency channel is bound；So as to give each radio frequency
Passage is with different data receiver initial times, and the time point that different radio frequency passage starts to receive data is different, and then dynamic AGC
The time of adjustment changes therewith.
S12：According to the terminal time interval Ta, the quantity N of radio-frequency channel and the ID i of radio-frequency channel calculate and each penetrate
The data receiver initial time of frequency passage.Initial time tstartMeet condition：tstart=(nN+i) Ta, wherein, tstartRepresent number
According to reception initial time；N represents the quantity of radio-frequency channel；TaRepresent the terminal time interval of foregoing division；I represents each radio frequency
The ID of passage, it is assumed that each radio-frequency channel serial number since 0；N is the integer more than or equal to 0.By determining that suitable n is obtained
The initial time t of determinationstart, such as when it is implemented, it is expected obtain a tstart nearest apart from current time t, then may be used
To be determined by below equation
As shown in figure 5, N=2, it is assumed that i=0 corresponds to radio-frequency channel 1；I=1 corresponds to radio-frequency channel 2, radio-frequency channel 1 and penetrates
When frequency passage 2 carries out the adjustment of first time AGC, the situation that processing does not come is not present in DSP, and process is adjusted in the AGC of subsequent dynamic
In DSP processing situation about not coming also is not present.Thus, demonstrate based on more radio-frequency channels in the embodiment of the present invention one
AGC methods of adjustment enter the reliability of Mobile state AGC adjustment, meet the needs of actual.
Embodiment two
Fig. 6 is refer to, it is the AGC method of adjustment implementation process schematic diagrames of more radio-frequency channels in the present embodiment.With reference to Fig. 6
Understand, embodiment two is that the scheme for setting each radio-frequency channel data receiver initial time is different from the difference of embodiment one.
It is to play the break period by first obtaining the first of each radio-frequency channel in embodiment two, and then counter pushes away each radio-frequency channel data
Initial time is received, realizes that the dynamic AGC adjustment work of each radio-frequency channel is mutually staggered progress.
In the present embodiment, setting the process of the starting working time of each radio-frequency channel includes：
S20：Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；Due to S20
Specific implementation process it is identical with the S10 in embodiment one, do not do and excessively repeat herein.
S21：Break period t is played by first of single radio frequency passageintBound with the ID of radio-frequency channel；
S22：Each radio-frequency channel is calculated according to the ID at the terminal time interval, the quantity of radio-frequency channel and radio-frequency channel
First rise the break period；
S23：The break period anti-data receiver for pushing away each radio-frequency channel is played according to the first of each radio-frequency channel to originate
Time.First break period of each radio-frequency channel meets tint=(nN+i) Ta, wherein, tintRepresent that first is played interruption
Time；N represents the quantity of radio-frequency channel；TaRepresent terminal time interval；I represents the ID, 0≤i of each radio-frequency channel<N, radio frequency
The ID of passage serial numbers since 0；N is the integer more than or equal to 0.The initial time determined by determining suitable n
tint, and then the anti-initial time t for pushing away receptionstart, specifically use formula tstart=tint–Tagc_rxIt is counter to push away tstart, wherein,
Tagc_rxRepresent first time period.
Start the time interval that one piece of data is greater than AGC adjustment using the time of initial AGC value as shown in fig. 6, receiving
T, N=2, it is assumed that i=0 corresponds to radio-frequency channel 1；I=1 corresponds to radio-frequency channel 2, and radio-frequency channel 1 and radio-frequency channel 2 are carried out for the first time
When AGC is adjusted, the situation that processing does not come is not present in DSP, and DSP processing is also not present during the AGC adjustment of subsequent dynamic
Situation about not coming.Thus, the AGC methods of adjustment for demonstrating more radio-frequency channels in the embodiment of the present invention two enter Mobile state AGC
The reliability of adjustment, meets the needs of actual.
The terminal in embodiment one or embodiment two is with more radio-frequency channel mobile terminals, such as supports CA
(CarrierAggregation) LTE mobile terminal.
Method of adjustment based on embodiments of the invention one or embodiment two, each radio-frequency channel can independently enter Mobile state
AGC is adjusted, and the method for adjustment on single radio frequency passage is identical, is that the data received in the time interval T of latter AGC adjustment are adopted
AGC is the AGC for calculating and feeding back in the time interval T based on previous AGC adjustment, and simply different radio frequency passage starts to adjust
Time have differences.
To sum up, in the AGC methods of adjustment of more radio-frequency channels provided by the present invention, led to by presetting each radio frequency
The data receiver initial time in road；Then, each radio-frequency channel is started working respectively according to respective data receiver initial time,
Enter the time point of Mobile state AGC adjustment with each radio-frequency channel of staggering；Each radio-frequency channel is only according to respective initial AGC difference
Stand into Mobile state AGC and adjust.Because the dynamic AGC adjustment realizations of each radio-frequency channel are avoided the peak hour progresss, so as to avoid the occurrence of DSP
Not as good as the situation of processing, adjusted suitable for the dynamic AGC of more radio-frequency channels, meet actual demand.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (9)
- A kind of 1. AGC methods of adjustment of more radio-frequency channels, it is characterised in that including：Set the data receiver initial time of each radio-frequency channel；Each radio-frequency channel is started working respectively according to respective data receiver initial time, and to stagger, each radio-frequency channel is carried out The time point of dynamic AGC adjustment；Mobile state AGC adjustment is independently entered in each radio-frequency channel according to respective initial AGC.
- 2. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 1, it is characterised in that set each radio-frequency channel The process of data receiver initial time includes：Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；The ID of the data receiver initial time of single radio frequency passage and radio-frequency channel is bound；The data that each radio-frequency channel is calculated according to the ID at the terminal time interval, the quantity of radio-frequency channel and radio-frequency channel connect Receive initial time.
- 3. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 2, it is characterised in that the data of each radio-frequency channel Receive initial time and meet following condition：tstart=(nN+i) Ta,Wherein, tstartRepresent data receiver initial time；N represents the quantity of radio-frequency channel；TaRepresent terminal time interval；I tables Show the ID of each radio-frequency channel, 0≤i<N, the ID of the radio-frequency channel serial number since 0；N is the integer more than or equal to 0.
- 4. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 1, it is characterised in that set each radio-frequency channel The process of data receiver initial time includes：Terminal time interval is divided, the terminal time interval is by the way that terminal time equalization is separately won；The ID for first of single radio frequency passage being played break period and radio-frequency channel is bound；First of each radio-frequency channel is calculated according to the ID at the terminal time interval, the quantity of radio-frequency channel and radio-frequency channel Play the break period；The break period anti-data receiver initial time for pushing away each radio-frequency channel is played according to the first of each radio-frequency channel.
- 5. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 4, it is characterised in that the first of each radio-frequency channel Individual break period meets following condition：tint=(nN+i) Ta,Wherein, tintRepresent that first is played the break period；N represents the quantity of radio-frequency channel；TaRepresent terminal time interval；I is represented The ID of each radio-frequency channel, 0≤i<N, the ID of the radio-frequency channel serial number since 0；N is the integer more than or equal to 0.
- 6. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 5, it is characterised in that described to be led to according to each radio frequency First of road plays the break period anti-data receiver initial time for pushing away each radio-frequency channel and uses equation below：tstart=tint–Tagc_rx,Wherein, tstartRepresent data receiver initial time；tintRepresent that first is played the break period；Tagc_rxRepresent the very first time Section.
- 7. the AGC methods of adjustment of more radio-frequency channels as described in claim 2 or 4, it is characterised in that the division terminal time The process at interval includes：Set time interval, first time period and the second time period of AGC adjustment, the time interval of AGC adjustment is equal to the One period and second time period sum, are calculated in the second time period based on the data received in the first time period AGC, and the AGC of calculating is fed back into current radio frequency passage；Time interval, first time period and the quantity set of the radio-frequency channel terminal time interval adjusted according to AGC, the terminal Time interval is more than or equal to second time period and meets all radio-frequency channels the needs of being staggered parallel.
- 8. the AGC methods of adjustment of more radio-frequency channels as described in claim 2 or 4, it is characterised in that the terminal is with more Radio-frequency channel mobile terminal.
- 9. the AGC methods of adjustment of more radio-frequency channels as claimed in claim 8, it is characterised in that the terminal is support CA's LTE mobile terminal.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030203726A1 (en) * | 2002-04-30 | 2003-10-30 | Wolfram Kluge | Digital automatic gain control for transceiver devices |
| US20100159854A1 (en) * | 2008-12-19 | 2010-06-24 | Electronics And Telecommunications Research Institute | Method and apparatus for adaptively controlling received power of multi-antenna radio channel measurement equipment |
| CN105429716A (en) * | 2015-11-11 | 2016-03-23 | 西安华讯天基通信技术有限公司 | Rapid power detection and automatic gain system and method suitable for multiple channels |
-
2016
- 2016-06-28 CN CN201610489195.XA patent/CN107547096B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030203726A1 (en) * | 2002-04-30 | 2003-10-30 | Wolfram Kluge | Digital automatic gain control for transceiver devices |
| US20100159854A1 (en) * | 2008-12-19 | 2010-06-24 | Electronics And Telecommunications Research Institute | Method and apparatus for adaptively controlling received power of multi-antenna radio channel measurement equipment |
| CN105429716A (en) * | 2015-11-11 | 2016-03-23 | 西安华讯天基通信技术有限公司 | Rapid power detection and automatic gain system and method suitable for multiple channels |
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