CN103281139B - Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment - Google Patents
Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment Download PDFInfo
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- CN103281139B CN103281139B CN201310172512.1A CN201310172512A CN103281139B CN 103281139 B CN103281139 B CN 103281139B CN 201310172512 A CN201310172512 A CN 201310172512A CN 103281139 B CN103281139 B CN 103281139B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
The invention discloses a method for detecting output power of dual-mode RRU (remote radio unit) equipment. The method comprises the following steps of according to the cell carrier wave and power conditions of the existing TD-SCDMA (time division-synchronization code division multiple access) and TD-LTE (time division-long term evolution), selecting a dual-mode training sequence in the output power detection mode, wherein the dual-mode training sequence is the same as the cell frequency feature; in the next preset cycle, according to the TD-LET time slot, sending the dual-mode training sequence in the coincided time period of TD-SCDMA guard period and TD-LTE guard period in the time axis, sampling data, calculating the accumulative sum, and repeating the step for multiple times; converting the accumulative sum obtained by multiple data sampling into the power value, and calculating the feedback average power; and according to the feedback average power, calculating the output power. The method has the advantage that when the RRU equipment simultaneously works in the TD-SCDMA mode and the TD-LTE mode, the output power can be accurately and completely detected.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of bimodulus RRU device power output detection method and system.
Background technology
Remote Radio Unit (RRU) is a kind of remote device, can by detecting the quality of the mode checkout equipment transmission channel hardware of RRU power output, and can realize providing management station to inquire about and reporting equipment power low alarm time abnormal by the mode of the detection RRU power output of RRU device.
In existing implementation, RRU device works in TD SDMA (TimeDivision-Synchronous Code Division Multiple Access respectively, TD-SCDMA) and timesharing Long Term Evolution (Time Division Long Term Evolution, TD-LTE) two kinds of standards time have respective RRU power output to detect implementation method.
It is mode by detected cells descending pilot frequency time slot (Downlink Pilot Time Slot, DW) signal that RRU power output when RRU device works in TD-SCDMA detects implementation method.In hardware designs, adopt the direct feedback link in power amplifier the Feedback of Power of transmitting chain to be returned, and by the feedback link of digital main board, feedback data is delivered in data processing module.This power output feedback is adopted several hardware designs and is generally adopted in various detection method, all adopts this simple saying of number by power output feedback hereinafter.On Software for Design, idiographic flow is as follows:
1) multiple radio-frequency (RF) switch is set to power output detecting pattern.This step is slightly said later as putting feedback switch.
2) after receiving detection triggering, by the 5ms cycle, repeatedly by the cumulative sum of sometime adopting number calculated data of time slot at DW time slot.DW time slot is a part for special subframe in TD-SCDMA structure of time slot.
3), after receiving detection stopping, stopping adopting number.
4) be converted to performance number by repeatedly adopting several results by corresponding relation, and calculate feedback power mean value.This step is slightly said later as calculating feedback average power.
5) according to each several part link gain of feedback link, feedback power mean value is substituted into feedback power-power output and calculates formula, calculate the power output of specifying feedback power corresponding under assigned temperature.This step is slightly said later as calculating power output.
It is mode by detecting TD-LTE training sequence signal that RRU power output when RRU device works in TD-LTE detects implementation method.In hardware designs, power output feedback is adopted to adopt several mode.On Software for Design, idiographic flow is as follows:
1) feedback switch is put.
2), after receiving detection triggering, in the next 10ms cycle, press time slot protecting the TD-LTE training sequence of transmission sometime of time slot (Guard Period, GP) and adopting number calculating cumulative sum.GP time slot is a part for special subframe in TD-LTE structure of time slot.
3) repeatedly 2 are repeated) step.
4) feedback average power is calculated.
5) power output is calculated.
It is not identical that community due to these two kinds of standards sends signal, accurately, intactly cannot detect power output when RRU device works under TD-SCDMA and TD-LTE two kinds of standards simultaneously.
Summary of the invention
(1) technical problem that will solve
How accurately the technical problem to be solved in the present invention is: when RRU device works in TD-SCDMA and TD-LTE two kinds of standards simultaneously, intactly detect the power output of RRU.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of bimodulus RRU device power output detection method, comprising step:
The bimodulus training sequence identical with cell frequency feature is selected according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern;
In next predetermined period, within the time period that the protection time slot of TD-SCDMA and the protection time slot of TD-LTE overlap on a timeline, send described bimodulus training sequence by TD-LTE time slot and adopt number and calculate cumulative sum, repeatedly repeat this step;
Be converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculate feedback average power;
Power output is calculated according to described feedback average power.
Wherein, the described step according to described feedback average power calculating power output specifically comprises: feedback power mean value is substituted into feedback average power-power output and calculate formula, calculate the power output that appointment feedback power is corresponding under assigned temperature.
Wherein, described predetermined period is 10ms.
Present invention also offers a kind of bimodulus RRU device power output detection system, comprising:
Training sequence selects module, for selecting the bimodulus training sequence identical with cell frequency feature according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern;
Training sequence sending module, calculate cumulative sum for sending described bimodulus training sequence by TD-LTE time slot within the time period that the protection time slot of TD-SCDMA and the protection time slot of TD-LTE overlap on a timeline and adopt number in next predetermined period, repeatedly repeat this step;
Average power calculates module, for being converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculates feedback average power;
Power output calculates module, for calculating power output according to described feedback average power.
Wherein, described power output calculates module and calculates formula specifically for feedback power mean value being substituted into feedback average power-power output, calculates the power output of specifying feedback power corresponding under assigned temperature.
Wherein, described predetermined period is 10ms.
(3) beneficial effect
The present invention is sent bimodulus training sequence sometime by what overlap on a timeline at the GP time slot of TD-SCDMA and the GP time slot of TD-LTE by TD-LTE time slot and is adopted the power output that the mode counting calculating cumulative sum detects RRU, also accurately, intactly can detect power output when RRU device is worked under TD-SCDMA and TD-LTE two kinds of standards simultaneously.
Accompanying drawing explanation
Fig. 1 is RRU device ouput power detection circuit structural representation;
Fig. 2 is a kind of bimodulus RRU device power output detection method flow chart of the embodiment of the present invention;
Fig. 3 is a kind of bimodulus RRU device power output detection system structural representation of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, be RRU device ouput power detection circuit structural representation that bimodulus RRU device power output detection method of the present invention adopts.Output signal is after digital processing chip FPGA sends, through digital to analog converter (DAC), local oscillator modulator, numeral board filter, numeral board emission amplifier, power amplifier PA amplifier, power amplifier circulator, signal is imported into power amplifier Coupled Feedback link through coupling circuit at the circulator of power amplifier, signal is selected to select mainboard feedback link to be connected with power amplifier Coupled Feedback link between the direct feedback link of power amplifier with power amplifier Coupled Feedback link by SWITCH2 before entering digital main board afterwards, signal passes through frequency mixer again at digital main board, database card reception amplifier, analog to digital converter (ADC), by giving digital processing chip FPGA by digital feedback signal after the analog-to-digital conversion of ADC.
The bimodulus RRU device power output detection method flow process of the device based on Fig. 1 of the present invention as shown in Figure 2, comprising:
Step S210, selects the bimodulus training sequence identical with cell frequency feature according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern.In the present embodiment, the process of selection is actual is the process of a simulation calculation, and by understanding current cell parameters, simulation calculation goes out the bimodulus training sequence of a cell signal of can comparing.
The actual signal of bimodulus community itself cannot detect due to the time domain synergistic effect of bimodulus to use the reason of bimodulus training sequence to be, and bimodulus training sequence contains the complete information of community, bimodulus cell signal can be simulated as far as possible, therefore can according to the number of carriers of community, the type of frequency determination sequence, can according to the size of the power grade determination sequence of community.Such bimodulus training sequence is selected to be use the method substituted, by detecting that the signal similar with cell signal infers the situation of cell signal.
Step S220, in next predetermined period (as: 10ms), by TD-LTE time slot, at the GP time slot of TD-SCDMA, (in GP time slot, choosing of moment is the restriction of dual mode system, only in this moment, training sequence could be sent out, other moment, various useful time slots, can not cover) and time period of overlapping on a timeline of the GP time slot of TD-LTE in (certain that can choose arbitrarily in section reclosing time is a bit of) send bimodulus training sequence and adopt number and calculate cumulative sum, repeatedly repeat this step, concrete number of times depends on demand and the strategy of concrete equipment.The concrete time point sending bimodulus training sequence at GP is variable, can determine, different time slots according to the time slot of bimodulus community, and GP length is different, and it is also different that bimodulus training sequence sends position.
Step S230, is converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculates feedback average power, obtains by adopting for each time to be averaged after several cumulative sums transfers power to.
Step S240, calculates power output according to described feedback average power.Specifically feedback power mean value is substituted into feedback average power-power output and calculate formula, calculate the power output of specifying feedback power corresponding under assigned temperature.This feedback average power-power output calculates formula and to calculate from test point to ADC this section of link (from Fig. 1 after circulator coupling according to thermometer, through switch 2, frequency mixer, amplifier and the filter link to ADC) gain at the expectation link gain of variations in temperature, then feedback average power and this link gain are added and obtain power output.
The present invention is sent bimodulus training sequence sometime by what overlap on a timeline at the GP time slot of TD-SCDMA and the GP time slot of TD-LTE by TD-LTE time slot and is adopted the power output that the mode counting calculating cumulative sum detects RRU, also accurately, intactly can detect power output when RRU device is worked under TD-SCDMA and TD-LTE two kinds of standards simultaneously.
As shown in Figure 3, present invention also offers a kind of bimodulus RRU device power output detection system, comprising:
Training sequence selects module 310, for selecting the bimodulus training sequence identical with cell frequency feature according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern.
Training sequence sending module 320; calculate cumulative sum for sending described bimodulus training sequence by TD-LTE time slot within the time period that the protection time slot of TD-SCDMA and the protection time slot of TD-LTE overlap on a timeline and adopt number in next predetermined period, repeatedly repeat this step.
Average power calculates module 330, for being converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculates feedback average power.
Power output calculates module 340, for calculating power output according to described feedback average power.
Further, power output calculates module 340 and calculates formula specifically for feedback power mean value being substituted into feedback average power-power output, calculates the power output of specifying feedback power corresponding under assigned temperature.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (6)
1. a bimodulus RRU device power output detection method, is characterized in that, comprise step:
The bimodulus training sequence identical with cell frequency feature is selected according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern;
In next predetermined period, within the time period that the protection time slot of TD-SCDMA and the protection time slot of TD-LTE overlap on a timeline, send described bimodulus training sequence by TD-LTE time slot and adopt number and calculate cumulative sum, repeatedly repeat this step;
Be converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculate feedback average power;
Power output is calculated according to described feedback average power.
2. bimodulus RRU device power output detection method as claimed in claim 1, it is characterized in that, the described step according to described feedback average power calculating power output specifically comprises: will feed back average power and substitute into feedback average power-power output calculating formula, and calculate the power output that appointment feedback power is corresponding under assigned temperature.
3. bimodulus RRU device power output detection method as claimed in claim 1, it is characterized in that, described predetermined period is 10ms.
4. a bimodulus RRU device power output detection system, is characterized in that, comprising:
Training sequence selects module, for selecting the bimodulus training sequence identical with cell frequency feature according to the cell carrier of current TD-SCDMA with TD-LTE and power situation under power output detecting pattern;
Training sequence sending module, cumulative sum is calculated, the repeatedly repetitive operation of described training sequence sending module for sending described bimodulus training sequence by TD-LTE time slot within the time period that the protection time slot of TD-SCDMA and the protection time slot of TD-LTE overlap on a timeline and adopt number in next predetermined period;
Average power calculates module, for being converted to performance number by repeatedly adopting several cumulative sums by corresponding relation, and calculates feedback average power;
Power output calculates module, for calculating power output according to described feedback average power.
5. bimodulus RRU device power output detection system as claimed in claim 4, it is characterized in that, described power output calculates module and substitutes into feedback average power-power output calculating formula specifically for feeding back average power, calculates the power output of specifying feedback power corresponding under assigned temperature.
6. bimodulus RRU device power output detection system as claimed in claim 4, it is characterized in that, described predetermined period is 10ms.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172512.1A CN103281139B (en) | 2013-05-10 | 2013-05-10 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
| PCT/CN2013/090262 WO2014180148A1 (en) | 2013-05-10 | 2013-12-23 | Method and system for detecting output power of dual mode rru device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310172512.1A CN103281139B (en) | 2013-05-10 | 2013-05-10 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
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| CN103281139A CN103281139A (en) | 2013-09-04 |
| CN103281139B true CN103281139B (en) | 2015-05-13 |
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| CN201310172512.1A Active CN103281139B (en) | 2013-05-10 | 2013-05-10 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
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| WO (1) | WO2014180148A1 (en) |
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| CN103281139B (en) * | 2013-05-10 | 2015-05-13 | 大唐移动通信设备有限公司 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
| CN106507462B (en) * | 2015-09-07 | 2019-11-29 | 大唐移动通信设备有限公司 | A kind of detection method and device of radio frequency remote unit RRU descending power |
| CN105262504B (en) * | 2015-11-11 | 2018-02-16 | 中国电子科技集团公司第四十一研究所 | The time and frequency measurement circuit and method of a kind of wide interval frequency hopping signal |
| CN116298497A (en) * | 2023-05-16 | 2023-06-23 | 合肥联宝信息技术有限公司 | Power detection method, device and system of electronic equipment and storage medium |
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| US8081711B2 (en) * | 2008-04-04 | 2011-12-20 | Panasonic Corporation | Predistortion methods and apparatus for polar modulation transmitters |
| CN102014401B (en) * | 2009-09-07 | 2013-05-08 | 鼎桥通信技术有限公司 | Channel estimate method and system in multi-antenna descending system, and base station as well as terminal thereof |
| CN102065531B (en) * | 2009-11-13 | 2014-06-11 | 中兴通讯股份有限公司 | Power calibrating method and device |
| CN101951674B (en) * | 2010-09-16 | 2013-03-27 | 新邮通信设备有限公司 | Method and device for calibrating downlink channel gain |
| CN102412855B (en) * | 2010-09-20 | 2015-03-25 | 大唐移动通信设备有限公司 | Determination method of impedance match situation and equipment |
| US8682251B2 (en) * | 2011-03-21 | 2014-03-25 | Telefonaktiebolaget L M Ericsson (Publ) | Apparatus and methods for estimation of a subchannel power imbalance ratio (SCPIR) |
| CN103024770A (en) * | 2011-09-21 | 2013-04-03 | 意法-爱立信有限公司 | Dual-mode terminal and measuring method thereof |
| CN102711261B (en) * | 2012-05-24 | 2014-10-15 | 大唐移动通信设备有限公司 | Sub-frame configuration method and device used in dual-mode RRU (radio remote unit) |
| CN102710387B (en) * | 2012-06-27 | 2015-01-21 | 华为技术有限公司 | Method for increasing length of common GP (guard period) regions of TD-SCDMA (time division-synchronous code division multiplex access) and LTE-TDD (long term evolution-time division duplex) subframes and evolved Node |
| CN103281139B (en) * | 2013-05-10 | 2015-05-13 | 大唐移动通信设备有限公司 | Method and system for detecting output power of dual-mode RRU (remote radio unit) equipment |
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- 2013-12-23 WO PCT/CN2013/090262 patent/WO2014180148A1/en active Application Filing
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| WO2014180148A1 (en) | 2014-11-13 |
| CN103281139A (en) | 2013-09-04 |
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