CN101330701B - Method and system for off-lining debugging and measuring GSM radio frequency far-pulling system - Google Patents

Method and system for off-lining debugging and measuring GSM radio frequency far-pulling system Download PDF

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Publication number
CN101330701B
CN101330701B CN2007101115214A CN200710111521A CN101330701B CN 101330701 B CN101330701 B CN 101330701B CN 2007101115214 A CN2007101115214 A CN 2007101115214A CN 200710111521 A CN200710111521 A CN 200710111521A CN 101330701 B CN101330701 B CN 101330701B
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data
test
radio frequency
mode
frequency
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CN101330701A (en
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郭锋
赵志勇
王心宇
宗柏青
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ZTE Corp
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ZTE Corp
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    • 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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Abstract

The invention discloses an off-line adjusting and test method for a GSM remote radio system and a GSM remote radio off-line adjusting and test system. The method comprises the following steps: (1) after a system is self-checked for startup, if the self-loop of an optical fiber port in the remote system is checked, the system enters the adjusting and test mode; (2) in the adjusting and test mode, the system runs according to defaulted configuration parameters and generates test data; (3) according to the clock arrangement, the test data are transmitted in a circular way at the minimum power through a radio unit according to fixed frequency points at each carrier frequency; (4) a test terminal checks test information through receiving the test data signals sent by the carrier frequency, and determines the mode of operation of the system in the adjusting and test mode. By adopting the method and the system disclosed by the invention, data are not required to be configured in advance, thus bringing great flexibility to engineering construction and maintenance, as well as reducing the engineering construction and maintenance consumption.

Description

A kind of off-lining debugging and measuring method and system of GSM radio frequency stretch system
Technical field
The present invention relates to a kind of off-lining debugging and measuring method and system thereof of GSM radio frequency stretch system, relate more specifically under the situation of a kind of radio frequency stretch system disconnection network connection, transfer survey to check whether normally adjusting, measuring method of radio-frequency head equipment work by this locality, and finish the off-lining debugging and measuring system that this transfers brake.
Background technology
Make the field at communication apparatus of new generation, radio frequency stretch system is caused concern gradually, typical framework is that base transceiver station BTS is divided into two part: BBU (Base Band Unit Base Band Unit)+RRU (Remote Radio Unit Remote Radio Unit), in this framework, often adopt high speed media such as optical fiber to transmit between central apparatus and the radio frequency that zooms out.Radio frequency stretch system is saved the radio frequency feed line cost reducing the machine room space hold, and the base-band resource pool technology is used or the like the aspect significant advantage is arranged.But radio system is installed on the outdoor pylon, must bring the new problem in the installation and maintenance.
Under the framework that radio frequency zooms out, radio-frequency apparatus is placed on the pylon by far-end, dispersed placement is in each place, do not have the system that separates, more parts to be placed at a distance on the pylon (as combiner-divider etc.) compared to the base band radio frequency, the connection of any mistake, perhaps parts is unusual, if wait the system of arriving open-minded, BSC (Base Station Controller base station controller) and BBU software completely move, just be found, in engineering construction, can cause very big inconvenience.
Whether the RRU that how to test installation can use substantially, such as having an initial available version at least; And do not need to wait for that whole network system software moves just can watch; Best and succinct mode, the operation that powers on exactly, the situations such as power emission that independently can watch this carrier frequency in this locality with testing mobile phone.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of off-lining debugging and measuring method of GSM radio frequency stretch system, disconnect under the situation of network connection to solve at radio frequency stretch system, the operation that powers on, the situations such as power emission that can independently can watch this carrier frequency in this locality with testing mobile phone.
In order to address the above problem, the invention provides a kind of off-lining debugging and measuring method of GSM radio frequency stretch system, may further comprise the steps:
(1) after the system start-up self check,, then enters to transfer and survey mode of operation if check out this far-drawing system inner fiber port from ring;
(2) transfer under the survey mode of operation, system is according to the configuration parameter operation of acquiescence, and the generation test data;
(3) arrange according to clock, with test data at each carrier frequency according to fixing frequency, launch with the minimum power circulation by radio frequency unit;
(4) detecting information is watched by receiving the data signal under test that this carrier frequency sends in the test terminal, judges the operation conditions of surveying system under the mode of operation transferring;
Further, method of the present invention, wherein, this far-drawing system physically comprises two fiber ports at least;
Further, method of the present invention, wherein, described test data is descending IQ data;
Method of the present invention wherein, generates the step of test data described in the step (2), comprising:
Under the system comissioning mode of operation, after the descending IQ data extract of 0 time slot of the carrier frequency that will receive from optical fiber is come out, be kept in the internal memory, and will call in this descending IQ data load of internal memory to FPGA (Field-Programmable Gate Array field programmable gate array) chip through powering on;
Further, method of the present invention, wherein, described step (3) comprising: transferring the work of surveying under the mode of operation, fpga chip is arranged according to clock that this chip produced, at wireless 0 time slot of carrier frequency according to fixing frequency, with this descending IQ data-signal of minimum power circulation transmission;
Further, method of the present invention, wherein, detecting information described in the step (4) comprises: the BSIC sign indicating number (Base Station Identity Code base station identity code) that obtains after power level, frequency point information and the decoding;
In order to address the above problem, the present invention also provides a kind of GSM radio frequency to zoom out the off-lining debugging and measuring system, be used for the operation conditions that off-lining debugging and measuring GSM radio frequency zooms out hardware device, it is characterized in that, comprising: transfer and survey mode of operation startup module, data generation module, circulation transmitter module and data judge module:
Transfer and survey mode of operation startup module, be used for fiber port and be set to the entry condition of off-lining debugging and measuring system from ring, and check that the GSM radio frequency zooms out hardware device inner fiber port from the ring situation, the trigger data generation module starts;
Data generation module is used for zooming out software systems at the GSM radio frequency and transfer surveys under the mode of operation, after the test data of the carrier frequency that will receive from optical fiber extracts, is kept in the internal memory, and is loaded into fpga chip through this test data of will call in internal memory that powers on;
The circulation transmitter module is used to receive the test data that data generation module produces, and each carrier frequency according to fixing frequency, by radio frequency unit with lowest power circulation transmission;
The data judge module is used to read the test data that the circulation transmitter module is launched, and is converted into detecting information and shows, judges the operation conditions of surveying system under the mode of operation transferring;
Further, system of the present invention, wherein, this GSM radio frequency zooms out hardware device and comprises two fiber ports at least;
Further, system of the present invention, wherein, described test data is descending IQ data.
Adopt scheme of the present invention, at this radio frequency remote equipment, after project installation was finished, the workmen can move debugging on pylon, through the carrier frequency power of overdamping even be lower than the mobile phone transmitting power, bring harmful effect can not for operator's person.Through the system of this operation test, later on as long as can guarantee substantially after optical fiber is communicated with that operation is normal.
The Installation and Debugging of RRU piece-rate system can independently be carried out, and data configuration does not need in advance yet.Giving engineering construction and safeguarding provides very big flexibility, also helps reducing the consumption of engineering construction and maintenance.
Description of drawings
Fig. 1 is the flow chart of the off-lining debugging and measuring method of a kind of GSM radio frequency stretch system in the embodiment of the invention;
Fig. 2 zooms out the structure chart of off-lining debugging and measuring system for a kind of GSM radio frequency in the embodiment of the invention;
Fig. 3 zooms out the flow chart that the off-lining debugging and measuring system finishes the off-lining debugging and measuring function for radio frequency in the embodiment of the invention;
Fig. 4 is for generating test I Q data and finishing the method flow diagram that sends test in the embodiment of the invention.
Embodiment
The present invention is in order to solve the drawback that conventional solution exists, further set forth the off-lining debugging and measuring method of a kind of GSM radio frequency stretch system of the present invention by following specific embodiment, below embodiment is described in detail, but not as a limitation of the invention.
As shown in Figure 1, the flow chart for the off-lining debugging and measuring method of a kind of GSM radio frequency stretch system in the embodiment of the invention may further comprise the steps:
Step 101 after the system start-up self check, if check out this far-drawing system inner fiber port from ring, then enters to transfer and surveys mode of operation; This far-drawing system physically has two fiber ports at least;
Step 102 is transferred and is surveyed under the mode of operation, and software is according to the configuration operation of acquiescence, after 0 time slot data of the carrier frequency that will receive from optical fiber extract, be kept in the internal memory, and pass through the data load that will call in internal memory that powers on and arrive fpga chip, test data is ready; Test data is descending IQ data;
The clock that step 103, fpga chip are produced according to this chip oneself is arranged, with test data at each carrier frequency according to fixing frequency, launch with the minimum power circulation by radio frequency unit at wireless 0 time slot of carrier frequency;
Step 104, detecting information is watched by accepting the data signal under test that this carrier frequency sends in the test terminal, judges and transferring under the survey mode of operation that system's operation is normal; These detecting informations comprise: the BSIC sign indicating number that obtains after power level, frequency point information and the decoding.
As shown in Figure 2, for a kind of GSM radio frequency in the embodiment of the invention zooms out the structure chart of off-lining debugging and measuring system, this off-lining debugging and measuring system, be used for the operation conditions that off-lining debugging and measuring GSM radio frequency zooms out hardware device, comprise: transfer and survey mode of operation startup module 201, data generation module 202, circulation transmitter module 203 and data judge module 204:
Transfer and survey mode of operation startup module 201, be used for fiber port and be set to the entry condition of off-lining debugging and measuring system from ring, and check that the GSM radio frequency zooms out hardware device inner fiber port from the ring situation, trigger data generation module 202 starts;
Data generation module 202 is used for zooming out software systems at the GSM radio frequency and transfer surveys under the mode of operation, after the test data of the carrier frequency that will receive from optical fiber extracts, is kept in the internal memory, and is loaded into fpga chip through this test data of will call in internal memory that powers on;
Circulation transmitter module 203 is used to receive the test data that data generation module 202 produces, and each carrier frequency according to fixing frequency, by radio frequency unit with lowest power circulation transmission;
Data judge module 204 is used to read the test data that circulation transmitter module 203 is launched, and is converted into detecting information and shows, judges transferring and surveys the operation conditions that zooms out hardware device under the mode of operation.
As shown in Figure 3, for radio frequency in the embodiment of the invention zooms out the flow chart that the off-lining debugging and measuring system finishes the off-lining debugging and measuring function, its step is as follows:
Step 301 transfers survey mode of operation startup module that the condition that fiber port starts as accent survey mode of operation from ring is set; Because it is interconnected that present RRU (Remote Radio Unit Remote Radio Unit) generally needs, physically there are two fiber ports in bottom line, does not need hardware spending of auxiliary switch and so on or the like;
Step 302 after the system start-up self check, if check out fiber port from ring, then enters to transfer and surveys mode of operation;
Step 303 is transferred and is surveyed under the mode of operation, and operation of RRU software and hardware and normal mode are basic identical, and optical fiber is behind ring, and software is according to a cover configuration data operation of acquiescence; Transfer and survey under the mode of operation, the generation of test data is finished by data generation module, at first the data that leave in advance in the flash memory is called in internal memory; Tell that then FPGA takes out, send by radio frequency unit and get final product;
The source of store data is exactly the IQ data in advance, because only need the mobile phone for measuring downstream signal, only needs to prepare descending IQ data, is 5Kbyte according to each time slot of capacity of calculating descending IQ data; The data volume of so minimum one time 51 multi-frame is 51*5K=255Kbyte; Duration 51*4.615ms=240ms; Get off for abundant transmitting system message, in Installed System Memory, prepare the data in 10 seconds; Needing the space of internal storage data storage is 10Mbyte;
Step 304, the circulation transmitter module receives the test data that data generation module produces, and fpga chip is these IQ data, according to the clock (at this moment not having condition to extract from optical interface) of fpga chip oneself generation, at wireless 0 time slot of this carrier frequency, pressing fixedly, the frequency circulation sends the data of this 10M;
Step 305, the data judge module can be testing mobile phone physically, by accepting the data signal under test that this carrier frequency sends, watch power level and information such as BSIC sign indicating number (Base Station Identity Code base station identity code) that after decoding, obtains and frequency; Judgement is being transferred under the survey mode of operation, and the hardware device operation is normal.
As shown in Figure 4, for generating test I Q data in the embodiment of the invention and finishing the method flow diagram that sends test.The method step that generates test I Q data is as follows:
Step 401 is recorded under system's normal operation mode, and the parameter setting of system configuration is surveyed the parameter that mode of operation needs for transferring; FPGA is kept in the internal memory after 0 time slot data of this BCCH that receives on the optical fiber (Broadcast Control Channel Broadcast Control Channel) carrier frequency are extracted in addition; Carry out unloading by software then;
Step 402, RRU is under this mode of operation, and rf transmitter unit is launched with minimum power; Minimum power settings is to decay static 6 grades and dynamic 15 grades on maximum power P0 basis, 21 grades altogether; With maximum power P0 40w is benchmark, and the base station power output after overdamping is reduced to 2 milliwatts at least;
Near step 403, the frequency that testing mobile phone is set wireless mouthful reception condition RRU;
The design rule of carrier frequency frequency point information: the 900M frequency range, fixedly frequency is 1; The 1800M frequency range, fixedly frequency is 512; The 1900M frequency range, fixedly frequency is 975; The fixedly frequency of BSIC is 11; System message is configured generation according to system's O1 site type;
Step 404, testing mobile phone receive frequency point information within 2 minutes after the RRU pattern of testing oneself powers on, BSIC is decoded as 11; Show that RRU equipment installs (comprise co-shunt, and antenna feeder etc.), and equipment operation is normal substantially.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims (8)

1. the off-lining debugging and measuring method of a GSM radio frequency stretch system is characterized in that, may further comprise the steps:
(1) after the system start-up self check,, then enters to transfer and survey mode of operation if check out this far-drawing system inner fiber port from ring;
(2) transfer under the survey mode of operation, system is according to the configuration parameter operation of acquiescence, and generation test data: under the system comissioning mode of operation, after the descending IQ data extract of 0 time slot of the carrier frequency that will receive from optical fiber is come out, be kept in the internal memory, and will call in this descending IQ data load of internal memory to fpga chip through powering on;
(3) arrange according to clock, with test data at each carrier frequency according to fixing frequency, launch with the minimum power circulation by radio frequency unit;
(4) detecting information is watched by receiving the data signal under test that this carrier frequency sends in the test terminal, judges the operation conditions of surveying system under the mode of operation transferring.
2. the method for claim 1 is characterized in that, this far-drawing system physically comprises two fiber ports at least.
3. the method for claim 1 is characterized in that, described test data is descending IQ data.
4. method as claimed in claim 3 is characterized in that, described step (3) comprising:
Transfer to survey under the mode of operation, fpga chip is arranged according to the clock that this chip produced, at 0 time slot of carrier frequency according to fixing frequency, with this descending IQ data-signal of minimum power circulation transmission.
5. the method for claim 1 is characterized in that, in the step (4), described detecting information comprises: the BSIC sign indicating number that obtains after power level, frequency point information and the decoding.
6. a GSM radio frequency zooms out the off-lining debugging and measuring system, is used for the operation conditions that off-lining debugging and measuring GSM radio frequency zooms out hardware device, it is characterized in that, comprising: transfer and survey mode of operation startup module, data generation module, circulation transmitter module and data judge module:
Transfer and survey mode of operation startup module, be used for fiber port and be set to the entry condition of off-lining debugging and measuring system from ring, and check that the GSM radio frequency zooms out hardware device inner fiber port from the ring situation, the trigger data generation module starts;
Data generation module is used for zooming out software systems at the GSM radio frequency and transfer surveys under the mode of operation, after the test data of the carrier frequency that will receive from optical fiber extracts, is kept in the internal memory, and is loaded into fpga chip through this test data of will call in internal memory that powers on;
The circulation transmitter module is used to receive the test data that data generation module produces, and each carrier frequency according to fixing frequency, by radio frequency unit with lowest power circulation transmission;
The data judge module is used to read the test data that the circulation transmitter module is launched, and is converted into detecting information and shows, judges the operation conditions of surveying system under the mode of operation transferring.
7. system as claimed in claim 6 is characterized in that, this GSM radio frequency zooms out hardware device and comprises two fiber ports at least.
8. system as claimed in claim 6 is characterized in that, described test data is descending IQ data.
CN2007101115214A 2007-06-19 2007-06-19 Method and system for off-lining debugging and measuring GSM radio frequency far-pulling system Expired - Fee Related CN101330701B (en)

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CN102111786A (en) * 2009-12-25 2011-06-29 华为技术有限公司 Method, device and system for monitoring remote carrier-frequency power supply
CN103368663B (en) * 2012-03-28 2015-08-05 普天信息技术研究院有限公司 A kind of commissioning method for testing for radio frequency remote base station and system
CN107438253A (en) * 2016-05-26 2017-12-05 中兴通讯股份有限公司 A kind of hardware detection method, apparatus of base station and base station
CN107786261A (en) * 2016-08-24 2018-03-09 中兴通讯股份有限公司 RRU hardware checks triggering method and RRU hardware check systems

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