CN101472284A - Complete machine automatic test equipment and method of global mobile commucation system base station - Google Patents
Complete machine automatic test equipment and method of global mobile commucation system base station Download PDFInfo
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- CN101472284A CN101472284A CNA2007101610457A CN200710161045A CN101472284A CN 101472284 A CN101472284 A CN 101472284A CN A2007101610457 A CNA2007101610457 A CN A2007101610457A CN 200710161045 A CN200710161045 A CN 200710161045A CN 101472284 A CN101472284 A CN 101472284A
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Abstract
The invention provides a device for automatically testing the complete machine of the base station of a global system for mobile communications and a method thereof. The device comprises a comprehensive tester, a main control device and a base station control device, wherein, the main control device which is connected with the comprehensive tester and the base station control device is used for controlling the base station control device and the comprehensive tester; the comprehensive tester is used for transmitting the uplink signal of a base station (BS) to the radio-frequency receiving port of the BS; the uplink signal is output from an Abis interface after being processed by the BS; and the comprehensive tester is further used for receiving the data transmitted from the down interface of the BS, and processes the data to obtain an uplink radio-frequency index of the BS; the BS control device is used for receiving uplink data frames output from the Abis interface of the BS, reconstitutes the uplink data frames as downlink data frames, and loops back the downlink data frames to the BS through the Abis interface; and the downlink data frames is transmitted to the comprehensive tester through the downlink interface after being processed by the BS.
Description
Technical field
The present invention relates to field of mobile communication, relate in particular to automatic testing equipment and method on the base station complete machine is produced in a kind of GSM (global system for mobile communications) system.
Background technology
During GSM base station complete machine was produced, the general use of radio-frequency (RF) index test surveyed instrument eventually, as R﹠amp; The E4406 of the CMD57 of S company, CMU300 or Agilent company (frequency spectrograph)+E4438 instrument such as (signal sources).
HomeBTS aims at small-sized, the short-range cellular base station that solves indoor covering research and development.Because the HomeBTS coverage is little, the base station is many, and by time-consuming, the effort of macro base station network planning network optimization method planning frequency of routine, so it possesses intelligent frequency search and frequency point setting function.That is to say, HomeBTS except with the up-downgoing air interface of terminal called, also have a uplink air interface that receives base station signal.
GSM standard is surveyed eventually instrument such as CMD57, CMU300 etc. can receive the downstream signal of eating dishes without rice or wine the base station with test downlink index in the system test of base station, also can give the base station by transmit uplink signal, the Abis interface of monitored base stations output (directly reading the code stream of Abis interface) is with the testing uplink index simultaneously.But standard is surveyed eventually the signal that instrument can not the transmitting base station band downlink, can't test the ascending idle port that HomeBTS receives base station signal.
Combined survey instrument eventually such as E4406 (frequency spectrograph)+E4438 (signal source) etc. can receive the downstream signal and the transmit uplink signal of eating dishes without rice or wine the base station equally and give the base station, and the signal of energy transmitting base station band downlink, can test the ascending idle port that HomeBTS receives base station signal.But this class instrument can not be monitored Abis interface (interface of base station transceiver and base station controller), and it requires base station demodulation, decoded upward signal to eat dishes without rice or wine loopback to whole survey instrument by downlink again, thereby finishes the test of received RF index.This loopback all is to finish at inside of base station now, obviously is not sufficiently complete concerning system test.
The complete machine production requirement test of GSM HomeBTS base station comprises the sensitivity index of downlink wireless index and up receiving terminal signal path, the sensitivity index of reception base station signal path from the complete path of the Abis mouth of eating dishes without rice or wine.Existing method of testing and device exist shortcoming to demand urgently improving.
Summary of the invention
The technical problem to be solved in the present invention provides the complete automatic test apparatus and method of base station in a kind of GSM mobile communcations system, the emission index of base station down path and the reception index of uplink are tested, overcome the limitation of existing means of testing and equipment, determine the integrity of base station software and hardware system.
In order to solve the problems of the technologies described above, the invention provides a kind of global system for mobile communications base station complete automatic test device, comprise and survey instrument eventually, master control set, base-station control apparatus, wherein,
Described master control set links to each other with described base-station control apparatus with the described instrument of surveying eventually, is used to control described base-station control apparatus and the described instrument of surveying eventually;
The described instrument of surveying eventually is used for the radio frequency receiving port of transmitting base station upward signal to described base station, after handle described base station, exports from Abis interface; Also be used to receive the data of described base station, survey instrument eventually and handle the up radio-frequency (RF) index that these data obtain the base station from the downlink space interface emission;
Described base-station control apparatus is used to receive the uplink data frames of described base station from Abis interface output, gives described base station by the Abis interface loopback after being reassembled as downlink data frame, handles the back through described base station and is transmitted to the described instrument of survey eventually by downlink space interface.
Further, described complete automatic test device also can have following characteristics, and described complete automatic test device is used to test indoor base station HomeBTS.
Further, described complete automatic test device also can have following characteristics, the described base station signal receiving port RXB that surveys instrument transmitting base station upward signal to described base station eventually, the up radio-frequency (RF) index of testing the RXB mouth of described base station; And/or
The described terminal signaling receiving port RXM that surveys instrument transmitting base station upward signal to described base station eventually, the up radio-frequency (RF) index of testing the RXM mouth of described base station.
Further, described complete automatic test device also can have following characteristics, and the described instrument of surveying eventually is also according to the data of described base station from the downlink space interface emission, the downlink radio frequency index of testing described base station.
Further, described complete automatic test device also can have following characteristics, and described base-station control apparatus further comprises main control unit, E1 interface and switched circuit, signal processor, operational processor, wherein,
Described main control unit links to each other with described master control set, is used to receive the test instruction of described master control set, is handed down to described signal processor, also is used to manage described base-station control apparatus;
Described E1 interface and switched circuit link to each other with the Abis interface of described base station, are used for by described Abis interface and base station exchange data frames and signaling data;
Described signal processor is used for the indication according to main control unit, and the link of foundation and maintenance and described base station issues the configuration information of described base station, operates and monitor the state of each channel of described base station;
Described operational processor is used to extract the uplink data frames that obtains from E1 interface and switched circuit, convert downlink data frame after the reorganization to, and the downlink data frame that will obtain after will recombinating is given described base station by described E1 interface and switched circuit loopback.
Further, described complete automatic test device also can have following characteristics, described base-station control apparatus also comprises the radio-frequency (RF) switch commutation circuit, is used for the described upward signal of surveying eventually the different frequency range that instrument sends is switched between the RXB of described base station interface and RXM interface.
A kind of global system for mobile communications base station complete automatic test method is applied to one and comprises survey instrument eventually, in the complete automatic test device of base-station control apparatus, master control set, comprises following steps:
(a) the described radio frequency receiving port of surveying instrument transmitting base station upward signal to described base station eventually;
(b) uplink data frames is formed after handling described base station upward signal in described base station, exports described base-station control apparatus to from Abis interface;
(c) described base-station control apparatus receives described uplink data frames, is reassembled as downlink data frame, by described Abis interface loopback to described base station;
(d) described base station is handled the back with described downlink data frame and is emitted to the described instrument of surveying eventually by eating dishes without rice or wine, and the described instrument of surveying eventually is by handling the up radio-frequency (RF) index that obtains described base station.
Further, described complete automatic test method also can have following characteristics, and the base station that described method is used to test is indoor base station HomeBTS.
Further, described complete automatic test method also can have following characteristics, in the step (a), the described base station signal receiving port RXB of instrument transmit uplink signal to the base station that survey eventually is in the step (d), obtain the up radio-frequency (RF) index of described RXB port, and/or, in the step (a), the described terminal signaling receiving port RXM of instrument transmit uplink signal that survey eventually to the base station, in the step (d), obtain the up radio-frequency (RF) index of described RXM port.
Further, described complete automatic test method also can have following characteristics, and the described instrument of surveying eventually is also according to the data of described base station from the downlink space interface emission, the downlink radio frequency index of testing base station.
Adopt apparatus and method of the present invention, can overcome the various limitations of instrument in the system test of HomeBTS base station of surveying eventually of existing GSM, can very intactly test the performance index that transmit and receive path of HomeBTS base station system.
Description of drawings
Fig. 1 is the theory diagram of device to test HomeBTS complete machine radio-frequency (RF) index of the present invention;
Fig. 2 is HomeBTS complete automatic test RXM of the present invention (terminal signaling receiving port) method of testing flow chart;
Fig. 3 is HomeBTS complete automatic test RXB of the present invention (base station signal receiving port) method of testing flow chart.
Embodiment
Automatic testing equipment of the present invention is made up of master control set (as PC), the combined instrument (as the E4406+E4438 of Agilent company) of survey eventually, base-station control apparatus, wherein,
Master control set is used to provide man-machine interface, and the control combination type is surveyed the measurement pattern of instrument eventually, and the operational group mould assembly is surveyed instrument and base-station control apparatus eventually and gathered measurement data, and master control set can pass through network interface or serial ports and base-station control apparatus interactive information; Can be by network interface or the combined instrument of surveying eventually of GPIB card/line traffic control;
The combined instrument of surveying eventually links to each other with base-station control apparatus with master control set, is used to test the radio-frequency (RF) index that transmits and receives of HomeBTS base station;
Survey instrument eventually and can send transmitting of terminal and transmitting of base station, thus the sensitivity of two receive paths of test HomeBTS; Can also receive the downstream signal test downlink radio frequency index of eating dishes without rice or wine the HomeBTS base station;
Base-station control apparatus, link to each other with the combined instrument of surveying eventually with master control set, be used to operate the running status of HomeBTS, finish configuration operation to HomeBTS, reception, reorganization, the loopback of channel status operation and business code flow trau frame, specifically comprise and receive TRAU (Transcoder Rate Adapter Unit, the code conversion Rate Adapter Unit) frame that HomeBTS uploads from Abis interface, be reassembled as the downlink data form and be descending trau frame again loopback give HomeBTS;
Described base-station control apparatus further comprises main control unit, signal processor, E1 interface and switched circuit, operational processor, clock circuit and radio-frequency (RF) switch commutation circuit, wherein:
Main control unit is used for the master control set interactive information and manages described base-station control apparatus, and the operation of other unit receives the instruction of master control set in the control base-station control apparatus, is handed down to signal processor;
E1 interface circuit and switched circuit link to each other with the Abis interface of HomeBTS, are used for and mutual signaling code stream in HomeBTS base station and business code flow (being trau frame), and pass to signal processor and operational processor; Or will pass to the HomeBTS base station from signaling code stream and the business code flow that signaling is handled itself and operational processor;
Signal processor is used for the indication according to main control unit, and the link of foundation and maintenance and HomeBTS issues the configuration information of HomeBTS, and the state of operation and each channel of monitoring HomeBTS is by E1 interface and switched circuit and HomeBTS interactive information;
Operational processor, be used to extract from E1 interface and the next uplink service code stream of switched circuit exchange, every 20ms forms a trau frame, and the form that converts descending trau frame to is given the HomeBTS base station by E1 interface and switched circuit loopback, is finally eated dishes without rice or wine to launch by the HomeBTS base station;
Clock circuit is used to that other all unit (processor chips, interface chip) provides reference clock on the plate.
Also need an extra part---radio-frequency (RF) switch commutation circuit in the base-station control apparatus among the present invention, the upward signal that is used for surveying eventually the different frequency range that instrument sends receives at HomeBTS between the ascending idle port of the ascending idle port of base station signal and receiving terminal signal and switches.This is the consideration for test automation, and the existence of radio-frequency (RF) switch commutation circuit has realized the automatic control of this switching.
Utilize the test process that carries out the HomeBTS complete automatic test of testing apparatus of the present invention as follows, in the present embodiment, master control set is a PC.
At first carry out the test of RXM (terminal signaling receiving port), as shown in Figure 2:
101, main control unit in the base-station control apparatus and PC interactive instruction, main control unit is handed down to that signal processor is set up and the Operation and Maintenance Unit of HomeBTS and the link of carrier frequency, activates or separate to close the Traffic Channel that will test.
102, survey instrument transmitting base station upward signal eventually by the RXM (terminal signaling receiving port) of radio-frequency (RF) switch commutation circuit to HomeBTS.
103, HomeBTS receives this base station upward signal, carries out the up trau frames of back composition such as demodulation, decoding, equilibrium, deinterleaving export base-station control apparatus to from Abis interface E1 interface and switched circuit.
104, operational processor receives from E1 interface and the next business code flow of switched circuit exchange in the base-station control apparatus, whenever collect (being generally 20ms) behind the up trau frame, the business datum of extracting described up trau frame reassembles into the form of descending trau frame, is returned to HomeBTS by described Abis choma by E1 interface and switched circuit again.So both intactly test the software and hardware system of HomeBTS base station, also satisfied the eat dishes without rice or wine requirement of loopback of whole survey instrument.
105, HomeBTS the data in the descending trau frame encode, interweave, modulation etc. is back launches from downlink space interface.
106, the whole up radio-frequency (RF) index (as the up reception error rate) of surveying instrument comparing data calculation base station RXM mouth.Survey instrument eventually and also receive the data of HomeBTS, the downlink radio frequency index of test HomeBTS base station from the downlink space interface emission.The test of downlink radio frequency index test and up radio-frequency (RF) index is independently.
Carry out the test of RXB (base station signal receiving port) below, concrete method of testing is similar to the test of RXM mouth, as shown in Figure 3:
107, survey instrument transmitting base station downstream signal eventually by the RXB (base station signal receiving port) of radio-frequency (RF) switch commutation circuit to HomeBTS.
108, HomeBTS receives this base station down signal, carries out the up trau frames of back composition such as demodulation, decoding, equilibrium, deinterleaving and goes out the base station from Abis interface.
109, operational processor receives from E1 interface and the next business code flow of switched circuit exchange in the base-station control apparatus, every 20ms collects a up trau frame, extracts the form that business datum reassembles into descending trau frame then, gives HomeBTS by E1 interface and switched circuit loopback again.
110, HomeBTS the digital coding in the descending trau frame, interweave, modulation etc. is back launches from downlink space interface, survey instrument eventually and receive this data.
111, the whole reception error rate of surveying instrument comparing data calculation base station RXB mouth.
112, up-downgoing radio-frequency (RF) index test result and PC that whole survey instrument is respectively eated dishes without rice or wine the base station are mutual.
In addition, above-mentioned RXB, the test of RXM port does not have ordinal relation, can test arbitrary port earlier.
Further specify GSM HomeBTS base station transceiver passage radio-frequency (RF) index test of the present invention below by an application example, specific as follows:
The signal source of surveying eventually in the instrument (E4438C) enters HomeBTS base station receiver RXM port with the level emission PN9 of setting or the up test signal of standard of PN15 code stream, and the up trau frames of back composition such as demodulation, decoding, equilibrium, deinterleaving go out the HomeBTS base station from Abis interface.
E1 interface and switched circuit are the frame clock with 8KHz in the base-station control apparatus.Each E1 frame of operational processor receives the 2bit code stream that exchange comes, receiving 160 times is that 20ms collects a up trau frame, extract of the form reorganization of the business datum of up trau frame then, give the HomeBTS base station by E1 interface and switched circuit loopback again by descending trau frame.
The HomeBTS base station downlink data encode, interweave, modulation etc. is back is transmitted to the frequency spectrograph of surveying eventually the instrument from transmission channel, surveys the radio-frequency (RF) index such as power, modulation accuracy, power temporal envelope, modulation spectrum, switching frequency spectrum of instrument test HomeBTS base station eventually; The radiofrequency signal that receives with time-frequency spectrometer is down-converted to the 216MHz intermediate frequency and gives signal source; The data of signal source and oneself emission compare the reception error rate of calculation base station RXM mouth.This test has covered whole emission, the reception path of tested HomeBTS base station substantially, and emission, receptivity index have been done accurate measurement.
The RXB receive path sensitivity test of GSM HomeBTS base station:
The signal source of surveying eventually in the instrument (E4438C) enters HomeBTS base station receiver RXB, the same the preceding paragraph of all the other processes with the level emission PN9 of setting or the standard base station down test signal of PN15 code stream.This test has been done accurate measurement to the sensitivity of the HomeBTS base station intelligent frequency search receive path that the preceding paragraph does not cover.
Complete automatic test apparatus and method of the present invention are not limited to above-mentioned HomeBTS base station, also can be used for the test of the base station of other types.
Claims (10)
1, a kind of global system for mobile communications base station complete automatic test device comprises and surveys instrument eventually, it is characterized in that, also comprises master control set, base-station control apparatus, wherein,
Described master control set links to each other with described base-station control apparatus with the described instrument of surveying eventually, is used to control described base-station control apparatus and the described instrument of surveying eventually;
The described instrument of surveying eventually is used for the radio frequency receiving port of transmitting base station upward signal to described base station, after handle described base station, exports from Abis interface; Also be used to receive the data of described base station, survey instrument eventually and handle the up radio-frequency (RF) index that these data obtain the base station from the downlink space interface emission;
Described base-station control apparatus is used to receive the uplink data frames of described base station from Abis interface output, gives described base station by the Abis interface loopback after being reassembled as downlink data frame, handles the back through described base station and is transmitted to the described instrument of survey eventually by downlink space interface.
2, automatic testing equipment as claimed in claim 1 is characterized in that, described complete automatic test device is used to test indoor base station HomeBTS.
3, complete automatic test device as claimed in claim 2 is characterized in that, the described base station signal receiving port RXB that surveys instrument transmitting base station upward signal to described base station eventually, the up radio-frequency (RF) index of testing the RXB mouth of described base station; And/or
The described terminal signaling receiving port RXM that surveys instrument transmitting base station upward signal to described base station eventually, the up radio-frequency (RF) index of testing the RXM mouth of described base station.
As claim 2 or 3 described automatic testing equipments, it is characterized in that 4, the described instrument of surveying eventually is also according to the data of described base station from the downlink space interface emission, the downlink radio frequency index of testing described base station.
As the arbitrary described automatic testing equipment of claim 1 to 3, it is characterized in that 5, described base-station control apparatus further comprises main control unit, E1 interface and switched circuit, signal processor, operational processor, wherein,
Described main control unit links to each other with described master control set, is used to receive the test instruction of described master control set, is handed down to described signal processor, also is used to manage described base-station control apparatus;
Described E1 interface and switched circuit link to each other with the Abis interface of described base station, are used for by described Abis interface and base station exchange data frames and signaling data;
Described signal processor is used for the indication according to main control unit, and the link of foundation and maintenance and described base station issues the configuration information of described base station, operates and monitor the state of each channel of described base station;
Described operational processor is used to extract the uplink data frames that obtains from E1 interface and switched circuit, convert downlink data frame after the reorganization to, and the downlink data frame that will obtain after will recombinating is given described base station by described E1 interface and switched circuit loopback.
6, as claim 1,2,3,5 arbitrary described automatic testing equipments, it is characterized in that, described base-station control apparatus also comprises the radio-frequency (RF) switch commutation circuit, is used for the described upward signal of surveying eventually the different frequency range that instrument sends is switched between the RXB of described base station interface and RXM interface.
7, a kind of global system for mobile communications base station complete automatic test method is applied to one and comprises and survey instrument eventually, in the complete automatic test device of base-station control apparatus, master control set, comprises following steps:
(a) the described radio frequency receiving port of surveying instrument transmitting base station upward signal to described base station eventually;
(b) uplink data frames is formed after handling described base station upward signal in described base station, exports described base-station control apparatus to from Abis interface;
(c) described base-station control apparatus receives described uplink data frames, is reassembled as downlink data frame, by described Abis interface loopback to described base station;
(d) described base station is handled the back with described downlink data frame and is emitted to the described instrument of surveying eventually by eating dishes without rice or wine, and the described instrument of surveying eventually is by handling the up radio-frequency (RF) index that obtains described base station.
8, complete automatic test method as claimed in claim 7 is characterized in that, the base station that described method is used to test is indoor base station HomeBTS.
9, as claim 7 or 8 described complete automatic test methods, it is characterized in that, in the step (a), the described base station signal receiving port RXB of instrument transmit uplink signal to the base station that survey eventually is in the step (d), obtain the up radio-frequency (RF) index of described RXB port, and/or, in the step (a), the described terminal signaling receiving port RXM of instrument transmit uplink signal that survey eventually to the base station, in the step (d), obtain the up radio-frequency (RF) index of described RXM port.
10, complete automatic test method as claimed in claim 9 is characterized in that, the described instrument of surveying eventually is also according to the data of described base station from the downlink space interface emission, the downlink radio frequency index of testing base station.
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| CN2007101610457A CN101472284B (en) | 2007-12-24 | 2007-12-24 | Complete machine automatic test equipment and method of global mobile communication system base station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889139A (en) * | 2016-09-30 | 2018-04-06 | 中国移动通信有限公司研究院 | A kind of signal test system and method |
| CN109600787A (en) * | 2018-12-12 | 2019-04-09 | 京信通信系统（中国）有限公司 | Base station is eated dishes without rice or wine throughput performance test method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1424864A1 (en) * | 2002-11-29 | 2004-06-02 | Siemens Mobile Communications S.p.A. | Method of resource indication in mobile communications systems having cells operating with different radio access techniques |
| CN100440767C (en) * | 2003-01-06 | 2008-12-03 | 华为技术有限公司 | Base station controller and forward frame synchronous transmission method between base station transceivers |
| CN100471320C (en) * | 2005-01-31 | 2009-03-18 | 华为技术有限公司 | System for conducting volume detection to base station apparatus and detection method thereof |
| CN100433852C (en) * | 2005-10-13 | 2008-11-12 | 中兴通讯股份有限公司 | Adaptive packet data transmission method for EGDE system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107889139A (en) * | 2016-09-30 | 2018-04-06 | 中国移动通信有限公司研究院 | A kind of signal test system and method |
| CN107889139B (en) * | 2016-09-30 | 2021-06-11 | 中国移动通信有限公司研究院 | Signal test system and method |
| CN109600787A (en) * | 2018-12-12 | 2019-04-09 | 京信通信系统（中国）有限公司 | Base station is eated dishes without rice or wine throughput performance test method, device and system |
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