CN1106718C - Method of controlling transmission output of radio - Google Patents
Method of controlling transmission output of radio Download PDFInfo
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- CN1106718C CN1106718C CN 98101229 CN98101229A CN1106718C CN 1106718 C CN1106718 C CN 1106718C CN 98101229 CN98101229 CN 98101229 CN 98101229 A CN98101229 A CN 98101229A CN 1106718 C CN1106718 C CN 1106718C
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- output
- emission
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- passage
- control channel
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Abstract
In a radio device, a transmitting circuit sends signals through a control channel or a call channel and intentionally changes the transmission output of the call channel. When the transmitting circuit sends the signals through the control channel, a closed loop is formed in order to feed back a detection output value transmitted and output by the control channel to a transmission output control part, and thereby, the transmission output of the control channel is controlled. When the transmitting circuit sends the signals through the call channel, the closed loop is canceled, and thereby, the transmission output of the call channel is controlled.
Description
Technical field
The present invention relates to control to the emission output of radio device.
Background technology
For must stably keeping launching the radio device of power output, importantly all stably keep at any time the gain of radiating circuit.
For realizing a kind of like this radio device, various emission output controls have been implemented at present.Emission output control can be divided into open ring type, wherein by temperature sensor or temperature detection part, for example the output of thermistor makes the gain of radiating circuit keep stable; And closed-loop type, wherein the output of the testing circuit of the afterbody by being arranged on radiating circuit makes the gain of radiating circuit keep stable.
Before a kind of advantage of launching output control be relatively simple, cost is low, and can be on purpose and easily change emission output.But, because the temperature characterisitic of the element of formation temperature detection part and radiating circuit is different, can not guarantee enough gain accuracies.Rear a kind ofly launch output control and need a testing circuit that is arranged on the afterbody of radiating circuit, this testing circuit is unique parts that might have a negative impact to gain accuracy.Therefore, closed-loop type emission output the gain accuracy that provides is provided is exported the gain accuracy height that control provides than the emission of open loop type.But the excursion of emission power output is to be determined by the detection range of testing circuit.Therefore, can on purpose change the radiating circuit complex structure of emission power output, cost an arm and a leg.
Send signal and can on purpose change the emission output radio device of the consistently emission of retentive control passage output simultaneously of calling out passage aforementioned prior art being applied to utilize a radiating circuit by control channel or call out passage, when for example being used on the base station of employing time-division multiplexing method of Simple portable phone, open-loop method can not obtain enough emission output accuracies.Then there is the restricted problem of excursion of emission output in closed-loop policy, perhaps each emission is all needed to monitor the detected value of exporting from testing circuit.
Summary of the invention
In order to address the above problem, according to one aspect of the invention, a kind of radio device is proposed, it utilizes a radiating circuit to send signal and can on purpose change the emission output of calling out passage by control channel or calling passage, it is characterized in that comprising: a closed loop, when sending signal, form this closed loop by control channel, so that the detection output valve that the emission of control channel is exported feeds back to the emission output control part, thereby the emission output of control control channel, when sending signal, passage cancelling this closed loop by calling out, thus the emission of controlling call passage output.
According to another aspect of the present invention, a kind of method of controlling the emission output of radio device is provided, this radio device utilizes a radiating circuit to send signal by control channel or calling passage, wherein but the output of this control method retentive control passage is constant and can on purpose change the emission output of calling out passage, it is characterized in that comprising:
A closed loop, when sending signal by control channel, form this closed loop, so that the detection output valve that the emission of radiating circuit is exported feeds back to the emission output control part, thereby the emission output of control control channel, cancelling this closed loop by calling out when passage sends signal, thereby the emission output of passage is called out in control.
Description of drawings
Fig. 1 is the flow chart that the method for exporting according to the emission of control radio device of the present invention is shown.
Fig. 2 is the block diagram that illustrates according to the transmitting block of the radio device of one embodiment of the invention, wherein forms a closed loop when sending signal by control channel.
Embodiment
Fig. 1 is the flow chart that the method for exporting according to the emission of control radio device of the present invention is shown.Fig. 2 is the block diagram that the transmission piece that has a closed loop is shown.Because control channel and calling passage all can be used to send signal, the mode of control emission output will depend on to adopt which kind of passage to send.Particularly, in step 1, emission output controll block 1 as shown in Figure 2 judges whether signal sends by control channel.If signal sends by control channel and carries out, processing procedure proceeds to step 2, detects the output of output detector 2 in this step.Then, in step 3, set emission output so that the output of control emission consistently according to the output valve that as above detects.In step 4, send according to aforementioned setting.If send by calling out passage at step 1 signal, then not execution in step 2 and 3 close loop maneuver (that is, closed loop is cancelled).So processing procedure proceeds to step 5, carry out emission output in this step and process, and send at step 4 executive signal.Be stored in the memory of emission output controll block 1 in the detected value of step 2.In situation about sending by calling passage executive signal, (that is, launching the output treatment step) exports according to the detection output valve setting emission that is stored in the memory in step 5.Therefore, when calling out passage and send signal, only transmit to control emission output by what use variable attenuator from be arranged on emission output controll block 1 or modulator output.
As previously mentioned, the signal of carrying out by control channel sends corresponding to predetermined emission output.Therefore, the detection output valve that is obtained by the output detector 2 shown in Fig. 2 is launched 1 supervision of output controll block, and sends signal according to launching to export to set.As a result, stablize the emission output gain, and kept its precision.The detection output valve of sending from the output detector shown in Fig. 22 only is monitored when sending signal by control channel.
Send corresponding to variable emission output by the signal of calling out the passage execution.The value of exporting and being monitored when sending signal by control channel from the output detector 2 shown in Fig. 2 is stored in the emission output controll block 1.Therefore, signal send to be that the emission power output wanted by calculating and power output valve handle that emission output carries out, thereby has stablized gain and kept the precision of emission output.
As mentioned above, in by the situation of exporting the control channel that executive signal sends with constant emission, carry out close loop maneuver.And in by the situation of exporting the calling passage that executive signal sends with variable emission, only by carrying out launch-control operations with being arranged on attenuator in the radiating circuit or the output signal of modulator, thereby keep the emission stable output.
The present invention has following advantage:
Can reduce the number for the monitor of the correction value relevant with the emission output accuracy;
Can simplify the emission output detection circuit;
The stable accuracy of emission output;
Can avoid controlling the interference that causes by emission output;
Can effectively utilize transmitted bandwidth by emission output control.
Claims (2)
1, a kind of method of controlling the emission output of radio device, this radio device utilizes a radiating circuit by control channel or calls out passage and sends signal, wherein but the output of this control method retentive control passage is constant and can on purpose change the emission output of calling out passage, it is characterized in that comprising:
A closed loop, when sending signal by control channel, form this closed loop, so that the detection output valve that the emission of radiating circuit is exported feeds back to the emission output control part, thereby the emission output of control control channel, cancelling this closed loop by calling out when passage sends signal, thereby the emission output of passage is called out in control.
2, the method for the emission of control radio device according to claim 1 output, wherein, launch the detection output valve of output control part storage, and when sending signal, launch output according to the detection output valve control of being stored by the calling passage by the emission output of the closed loop acquisition that when sending signal, forms by control channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101229 CN1106718C (en) | 1998-03-30 | 1998-03-30 | Method of controlling transmission output of radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101229 CN1106718C (en) | 1998-03-30 | 1998-03-30 | Method of controlling transmission output of radio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1230825A CN1230825A (en) | 1999-10-06 |
| CN1106718C true CN1106718C (en) | 2003-04-23 |
Family
ID=5216549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98101229 Expired - Fee Related CN1106718C (en) | 1998-03-30 | 1998-03-30 | Method of controlling transmission output of radio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106718C (en) |
-
1998
- 1998-03-30 CN CN 98101229 patent/CN1106718C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1230825A (en) | 1999-10-06 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |