CN1177868A - Transmitting-power tracing device adopting business information - Google Patents
Transmitting-power tracing device adopting business information Download PDFInfo
- Publication number
- CN1177868A CN1177868A CN97116147A CN97116147A CN1177868A CN 1177868 A CN1177868 A CN 1177868A CN 97116147 A CN97116147 A CN 97116147A CN 97116147 A CN97116147 A CN 97116147A CN 1177868 A CN1177868 A CN 1177868A
- Authority
- CN
- China
- Prior art keywords
- power
- transmitting power
- sender
- channel
- transmitting
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
To provide a method of tracing emission power by cellular communication network, the said device has transmitter with variable attenuator and unit for detection of power to be emitted. Corresponding method involves triggering said unit for detection of power to be emitted, receiving measured value of emission power, comparison of emission power to corresponding value for idle channel, and regulation of variable attenuator in order to increase or decrease emission power of said transmitter by level of difference between two said values, in case if they differ.
Description
The present invention relates to a kind of transmitting-power tracing device and the method for the mobile telecommunication system of honeycomb fashion.Specifically, the present invention relates to a kind of usefulness, promptly measure the Tx power of channel and the tracking means and the method for the Tx power of correction channel when not detecting any service message so that transmitting power (Tx power) reaches optimum state.
Usually, honeycomb fashion flow telecommunication system follow the tracks of send/receive the intensity of signal to reach the purpose that the ability that makes system reaches optimum state.A kind of method of tracking signal is to adopt transmitting power track loop (TPTL).Code division multiple access (CDMA) is the mobile telecommunication system of wherein a kind of honeycomb fashion that uses at present.In this manual, suppose that the mobile telecommunication system of honeycomb fashion is a cdma system.In cdma system, no matter how As time goes on hardware change, and the TX power of base station must be constant.
Because cdma system is being controlled the Tx power of each signal between base station and terminal, thereby professional the variation.Whether accurate for examining the present Tx power of base station, Tx power be according to the factor (for example traffic carrying capacity, business activity amount, digital gain, extra channel information and radio frequency (RF) transmission gain) of influential Tx power calculate, again result of calculation is compared with actual value.When carrying out these operations, collect by a processor carrying out Tx power tracking algorithm through the data that each processor is handled.For utilizing arithmetic result, the message of change in gain must be sent to a processor of control transmission gain.
The conventional method of aforementioned calculation Tx power can be represented with following (1) formula:
((P
iG)
2+ (S
yG)
2+ (P
aG)
2+ ∑ ((TG)
2 *VA)) (1) formula P wherein
iG is the pilot channel digital gain, S
yG is the synchronizing channel digital gain, and TG is the Traffic Channel digital gain, and VA is a Traffic Channel voice activity coefficient.When system sets, from the P of extra channel
iG, S
yG and P
aG is constant.TG and VA are the variable factors, change when Tx power uses in pre-specified time (being 20 milliseconds in this manual).Traffic carrying capacity also is a variable.When following the tracks of TX power, must per 20 milliseconds operate with (1) formula.
In the general TPTL method that cdma system uses, mass data is transmitted between many processors, and carries out complicated algorithm throughout between the reason machine to reach the purpose of following the tracks of transmitting power.Lot of data and complex calculations are burdens to system.This overload problem can solve by the time that prolongs between each TPTL operation.Yet in TPTL operating period, the data of transmitting between the reason machine are a lot of throughout, and data volume or amount of calculation do not reduce, the communication meeting phase mutual interference between each one of construction system.
Address the above problem, can calculate Tx power with the mixed number of channel in (1) formula.If adopt such as pilot tone, the P that respectively gains of extra channel synchronously and the paging channel
iG, S
yG and P
aG follows the tracks of the Tx power of CDMA sender, can address the above problem.Adopt this method, the Tx power of base station sender is measured with above-mentioned fixed value.Because the Tx power of base station sender is according to known extra channel information calculations, thereby the Tx power by measuring each channel and when not detecting service message, the Tx power of measuring compared with the constant Tx power of extra channel and just need not to calculate the transfer of data of Tx power or handle and operate when using TPTL.Adopt this method, during without any business, the Tx power of channel is constant, thereby need not per 20 milliseconds and make each several part synchronized with each other.
The purpose of this invention is to provide a kind of apparatus and method that produce best Tx power in honeycomb fashion flows telecommunication system, the concrete practice is when not detecting any service message benchmark Tx power to be compared with the channel value of measuring.
Another object of the present invention provides a kind of apparatus and method of the Tx of making power stability, and the concrete practice is when not detecting any service message a certain constant extra channel value to be compared with the Tx power of a certain channel of measuring and the transmission error of sender is proofreaied and correct.
For reaching above-mentioned purpose of the present invention, the method for tracking cellular telecommunication system transmitting power provided by the invention is equipped with sender and sender transmitting power testing circuit of a band adjustable attenuator.Described method drives described transmitting power testing circuit when comprising the following steps: not have business; Receive transmitting power; Transmitting power is compared with the extra channel value; The control adjustable attenuator is equivalent to the difference of described two values when unbecoming so that wireless signal transmission power is increased or reduce.
The many advantages that can understand the present invention better and more comprehensively and follow referring to following detailed description in conjunction with the accompanying drawings.In the accompanying drawing, identical numbering or similar elements identical with symbolic representation wherein:
Fig. 1 is the block diagram of the present invention in order to the transmission system of tracking Tx power;
Fig. 2 is the flow chart that the present invention follows the tracks of Tx power.
Describe content of the present invention in detail referring to accompanying drawing below.
As shown in fig. 1, master controller 11 is the master processors that adopt TPTL.The Tx power that master controller 11 will determine in the time of will not detecting service message is compared with the extra channel value, proofreaies and correct with regard to its mistake then.Signal processing unit 12 is digital units of removing from the intermediate frequency of base station sender.Signal processing unit 12 is made up of element in channel, modulator-demodulator and signal processing controller, and its effect is that digital signal is modulated into transmission signals.The transmission signals of transmitter unit 13 received signal processing units 12 produces radiofrequency signal thereby improve its frequency.The output of transmitter unit 13 has an adjustable attenuator 10.Adjustable attenuator 10 is regulated the gain of radiofrequency signal according to the control command that master controller 11 produces.Amplifier 14 amplifies the radiofrequency signal that transmitter unit 13 sends.Amplifier 14 is linear power amplifiers.Coupling unit 15 couples together amplifier 14 and antenna, and its effect is a radiofrequency signal of extracting amplifier 14.Coupling unit 15 can adopt directional coupler.Transmitting power detector 16 detects the electrical power of the radiofrequency signal of coupling unit 15 transmission.
Fig. 2 is the flow chart that the present invention measures correct errors process after the radiofrequency signal Tx power that sender produces.Master controller is handled this process.
Referring now to the transmitting power algorithmic descriptions preferred embodiment of the present invention of Fig. 1 and Fig. 2, the course of work.In TPTL method of the present invention, when not detecting any message in sender, controller receives fixing Tx performance number and determines whether to need to regulate Tx power then.Just need not to carry out complicated data shift or calculating with this method, because the tracking of Tx power is to finish by Tx performance number more known and that mensuration is come out.The preferred embodiments of the present invention are calculated Tx power with following (2) formula:
((P
iG)
2+ (S
yG)
2+ (P
AG)
2) (2) formula P wherein
iG represents pilot channel digital gain, S
yThe gain of G synchronizing signal, P
aThe gain of G paging channel.P from extra channel
iG, S
yG and P
aG is constant when setting in system.Therefore, because base station constant Tx power when not having business is known, thereby can carry out TPTL effectively when not having business.
In a preferred embodiment of the invention, give master controller 11 transmission information when signal element does not have business in that frequency is arranged, and master controller 11 is the processors of fulfiling TPTL.Master controller 11 is received and is carried out TPTL when not having professional message.Whether master controller 11 usefulness transmitting power detectors 16 detect current Tx power, match by relatively examining detected Tx power and extra channel value, regulate adjustable attenuator 10 in the transmitter unit 13 then so that correct errors.
The service message (step 211) that the element in channel of master controller 11 detection signal processing units 12 sends.Master controller 11 receive (step 213) when not having professional message from signal processing unit 12 thus control transmitting power detector 16 begins to carry out the Tx power that the TPTL operation detects the radiofrequency signal that sender produces.Master controller 11 sends to adjustable attenuator 10 with the decay control command of relevant channel.Transmitter unit 13 produces the radiofrequency signal of channel, and adjustable attenuator is then regulated the transmission signals gain according to the decay control data.Transmitting power detector 16 detects the Tx power of coupling unit 15 transmission, and sends it to master controller.Master controller 11 receives the performance number of the radiofrequency signal of transmission, and this performance number is really to measure (step 217) by transmitting power detector 16.Master controller 11 is with the Tx power that determines compare with the extra channel value of system (step 219).This two value is when step 219 matches, and master controller 11 determines that Tx power is normal (step 221), thereby intactly keeps decay control data (step 231) at that time and reset beginning said process again.
When measured value and constant extra channel are worth when unbecoming, master controller 11 defines mistake and produces (step 221), so the error value control data of decaying is accordingly sent to the adjustable attenuator 10 (step 223) of transmitter unit 13.The decay control of correct errors is by the gain increase or the value of reducing errors of relevant frequency are carried out.Adjustable attenuator 10 is regulated the frequency gain of radiofrequency signal according to the decay control command.The radiofrequency signal of gain through regulating sends transmitting power detector 16 to by coupling unit 15.Transmitting power detector 16 is measured the Tx power of the radiofrequency signal of gain through regulating, and sends it to master controller 11.Master controller 11 is carried out with step 217 to 221 identical steps 225 and so that regulate the Tx power of radiofrequency signal itself and the extra channel value of fixing is matched to 229.
In sum, the present invention does not compare fixing extra channel value when having business with the Tx performance number of sender.When two values are unbecoming, the Tx performance number is increased or reduces the difference that is equivalent to this two value so that the Tx power of the radiofrequency signal that sender produces reaches optimum state.The present invention need not to carry out complicated data shift or calculating thereby can produce best Tx power soon and do not cause system overload.
Therefore, it should be understood that the present invention is not limited to here as the disclosed specific embodiment of preferred embodiment, or rather, the present invention is not limited to the described specific embodiment of this specification, but the exception in the appended claims.
Claims (6)
1. the honeycomb fashion a kind of transmitting-power tracing device of telecommunication system that flows, sender and a circuit that detects described sender transmitting power of a band adjustable attenuator be equipped with, it is characterized in that, described device is controlled described circuit and is received transmitting power it is compared with the extra channel value when not having business, controlling described adjustable attenuator then increases the power of described sender or reduce the difference of this two value when unbecoming.
2. device as claimed in claim 1 is characterized in that, described extra channel is represented pilot tone, synchronous and paging channel.
3. the honeycomb fashion a kind of transmitting-power tracing device of telecommunication system that flows is characterized in that it comprises:
A signal processing unit is made up of in order to the element in channel of examining service message some;
A sender has adjustable attenuator for improving frequency from described signal processing unit to produce radio-frequency transmission signals, is regulated the gain of described transmission signals according to the decay control command by described adjustable attenuator;
A coupling unit is connected with the output of described sender;
A transmitting power detector is in order to measure the transmitting power by described coupling unit in tracing process; With
A major control device, in order to when element in channel can not detect business, to receive transmission power information, transmitting power is compared with the extra channel value, and regulate described adjustable attenuator the transmitting power of described sender is increased or reduces the difference between transmitting power and the extra channel.
4. device as claimed in claim 3 is characterized in that, described extra channel is pilot tone, synchronous and paging channel.
5. follow the tracks of the flow method of telecommunication system transmitting power of honeycomb fashion for one kind, sender and a circuit that detects the transmitting power of described sender of a band adjustable attenuator be equipped with, it is characterized in that, drive described circuit when it comprises the following steps: not have business; Receive the transmitting power measured value; Transmitting power is compared with the extra channel value; With regulate the radio signal transmitting power of described variable attenuator and increase or reduce the difference of described two values when unbecoming described sender.
6. method as claimed in claim 5 is characterized in that, described extra channel is pilot tone, synchronous and paging channel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR32663/96 | 1996-08-05 | ||
| KR1019960032663A KR19980013942A (en) | 1996-08-05 | 1996-08-05 | Transmission power tracking method using traffic message |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1177868A true CN1177868A (en) | 1998-04-01 |
| CN1088293C CN1088293C (en) | 2002-07-24 |
Family
ID=19468863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97116147A Expired - Fee Related CN1088293C (en) | 1996-08-05 | 1997-07-31 | Transmitting-power tracing device adopting business information |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3103785B2 (en) |
| KR (1) | KR19980013942A (en) |
| CN (1) | CN1088293C (en) |
| RU (1) | RU2124809C1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100396777B1 (en) * | 2001-06-08 | 2003-09-02 | 엘지전자 주식회사 | Output power controlling circuit |
| KR100446742B1 (en) * | 2001-12-24 | 2004-09-01 | 엘지전자 주식회사 | Tx power automatic control apparatus for frequency up converter |
| JP4418416B2 (en) | 2005-09-08 | 2010-02-17 | 独立行政法人労働者健康福祉機構 | Modular prosthetic leg cover |
| US7438725B2 (en) | 2005-12-21 | 2008-10-21 | Prosthetic Design, Inc. | Knee cosmesis |
| EP2469721B1 (en) * | 2010-12-22 | 2014-04-23 | NTT DoCoMo, Inc. | Apparatus and method for controlling a node of a wireless communication system |
| RU2463704C1 (en) * | 2011-06-22 | 2012-10-10 | Открытое акционерное общество "Государственный Рязанский приборный завод" (ОАО "ГРПЗ") | Microwave transmitter with optimal setting of output capacity |
| US9628204B2 (en) | 2013-03-11 | 2017-04-18 | Nec Corporation | Communication device, reception power monitoring device, and communication device system |
| RU2632477C1 (en) * | 2016-05-25 | 2017-10-05 | Акционерное общество Центральное конструкторское бюро аппаратостроения | Monopulse radar location station with automatic calibration |
-
1996
- 1996-08-05 KR KR1019960032663A patent/KR19980013942A/en not_active Application Discontinuation
-
1997
- 1997-07-30 RU RU97113090A patent/RU2124809C1/en not_active IP Right Cessation
- 1997-07-31 CN CN97116147A patent/CN1088293C/en not_active Expired - Fee Related
- 1997-08-05 JP JP09210444A patent/JP3103785B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3103785B2 (en) | 2000-10-30 |
| CN1088293C (en) | 2002-07-24 |
| RU2124809C1 (en) | 1999-01-10 |
| JPH1084292A (en) | 1998-03-31 |
| KR19980013942A (en) | 1998-05-15 |
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| C06 | Publication | ||
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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 |