CN104244282B - Wireless data transmission module auxiliary WCDMA signal source detection methods based on SDR platforms - Google Patents
Wireless data transmission module auxiliary WCDMA signal source detection methods based on SDR platforms Download PDFInfo
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- CN104244282B CN104244282B CN201410535957.6A CN201410535957A CN104244282B CN 104244282 B CN104244282 B CN 104244282B CN 201410535957 A CN201410535957 A CN 201410535957A CN 104244282 B CN104244282 B CN 104244282B
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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
WCDMA signal source detection methods are aided in the invention discloses a kind of wireless data transmission module based on SDR platforms, is related to detection and its tracking technique of the wireless signal of moving communicating field.By adding wireless data sending sending module and the addition wireless data sending receiver module in the indoor radio signal Acquisition Processor based on SDR platforms in the outdoor wireless signal acquiring processor based on SDR platforms, so as to effectively lift the energy capture rate and investigative range of detection system.Capture rate of the present invention is high, and the predicament that conventional detection method enters behind building not detecting completely target signal source is overcome completely；Capture range is wide, it is ensured that seamless WCDMA signal source detections are carried out in a kilometer range, and the disaster relief and colliery are speedily carried out rescue work etc. has good application prospect.
Description
Technical field
Detection and its tracking technique the present invention relates to the radio WCDMA signal sources in moving communicating field, especially relate to
And it is a kind of based on SDR（Software radio）The wireless data transmission module auxiliary WCDMA of platform（Wideband CDMA Technology）Signal source
Detection method, with detection, target WCDMA signal source energy capture rates are high, capture range wide and the quick advantage such as accurate of detection.
Background technology
With the increasingly popularization of the WCDMA terminals of 3G standards, increasing user carries out channel radio with WCDMA terminals
Letter, earthquake is speedily carried out rescue work to be needed accurately to detect target WCDMA signal sources with radio communication supervision department, due to wireless ring
Capture of the polytropy and its complexity in border to WCDMA target signal source energy generates detrimental effect, so as to influence right
The accurately detecting of WCDMA target signal sources.
Traditional detection mode is that the outdoor wireless signal acquiring processor based on SDR platforms is put into onboard special collection
Outdoor WCDMA base station signals, then obtain the upper of target WCMDA signal sources according to the outdoor WCDMA base station signals for collecting
Row scrambler and its synchronous point position, the uplink scrambling code according to target WCDMA signal sources and its synchronous point position calculate target thereafter
The ascending pilot frequency energy of WCDMA signal sources, it is achieved thereby that accurately being detected to target WCDMA signal sources；When outdoor nothing
Line signal acquisition process device detects target and then changes the indoor radio signal acquisition process based on SDR platforms after upstairs at that
Device carries out the base station signal collection of interior and its processes, and working method is simply entered as taken outdoors processor inside building
The detection of row WCDMA target signal sources；This mode is limited in that in actual conditions that most of building the inside is no room
Interior WCDMA base station signals covering covers very poor, and interior is carried out with the indoor radio signal Acquisition Processor based on SDR platforms
Can be very poor to the parsing of WCDMA base station signals when WCDMA echo signal source detections inside Lou Dong, so that it is difficult to basis
The result that WCDMA base stations parse obtains uplink scrambling code and its synchronous point position of WCDMA target signal sources, and then has a strong impact on
Energy capture rate when to WCDMA echo signal source detections；Moreover, traditional detection mode is on capture range
There is limitation, it is blind to there is covering in outdoor many places in remote districts and its mountain area and earthquake-stricken area WCDMA wireless base stations
, can still there is parsing less than WCDMA base stations when WCDMA signal source detections are carried out with outdoor signal Acquisition Processor in point
Information situation, so as to have impact on the capture range of detection.
It can be seen that traditional detection mode and system schema are very big to WCDMA target signal source detective limitations, to target
The capture rate and its coverage of WCDMA signal sources have very big inferior position, it is necessary to improve.
The content of the invention
The bright of this hair aims to overcome that existing detection mode is believed WCDMA targets under there is behind building environment indoors
Number source detection capture rate is low and investigative range small problem when outdoor WCDMA base stations covering difference, there is provided one kind is based on SDR
The wireless data transmission module auxiliary WCDMA signal source detection methods of platform.
Realizing the object of the invention technical scheme is：
By in the outdoor wireless signal acquiring processor based on SDR platforms add wireless data sending sending module and
Wireless data sending receiver module is added in indoor radio signal Acquisition Processor based on SDR platforms, so that effectively lifting detection
The energy capture rate and investigative range of system.
Specifically, this method comprises the following steps：
1. outdoor wireless signal acquiring processor and indoor radio signal Acquisition Processor are placed on outdoor together first
WCDMA base stations parse relatively good place and the Target cell of WCDMA base stations is synchronized, at outdoor wireless signal acquiring
Reason device is begun to the uplink scrambling code of WCDMA target signal sources and synchronous point position by without line number after parsing the cell of target
Sending module is passed to be transmitted；
2. the wireless data sending receiver module in indoor radio signal Acquisition Processor ought detect wireless data sending sending module
The wireless data sending signal for sending over then starts to receive and comes from the WCDMA targets that outdoor wireless signal acquiring processor is parsed
The uplink scrambling code of signal source and synchronous point position simultaneously pass to uplink synchronous point estimation module；Uplink synchronous point estimation module according to
It is same that the synchronous point position obtained from the 2nd descending base station signal processing module and uplink scrambling code and wireless data sending receiver module obtain
Beans-and bullets shooter position and scrambler are carried out to compared estimate, so as to obtain at outdoor wireless signal acquiring processor and indoor radio signal collection
Skew rule between reason device crystal oscillator, obtains bias estimation value；
3. the 2nd upward signal source signal energy computation module then connects according to the bias estimation value and wireless data sending being calculated
The synchronous point position that receipts module is received carries out being added the WCDMA mesh obtained corresponding to final indoor radio signal Acquisition Processor
Mark the synchronous point position of signal source；2nd upward signal source signal energy computation module is according to the synchronous point position for obtaining and thereon
Row scrambler parses the pilot data of WCDMA target signal sources, and then calculates pilot energy, realizes the work(of target acquisition
Energy；So that indoors under environment, no matter interior WCDMA base station signals cover how poor or blind area, indoor radio signal collection
Processor according to wireless data sending receiver module can capture the synchronous point position of target WCDMA signal sources and its up disturb
Code, so that beneficial to the energy for calculating WCDMA target signal sources.
4. by the energy that is calculated go to estimate WCDMA target signal sources from indoor radio signal Acquisition Processor away from
From distance, so as to accurately be detected to target.
The present invention has following advantages and good effect：
1. capture rate is high：By adding the transceiver module of wireless data sending, basic guarantee indoor wireless acquiring and processing device
WCDMA target signal sources are can be carried out in the case where having no indoor WCDMA wireless base station signals covering to be detected, completely
Overcome conventional detection method and enter the predicament not detected completely behind building；
2. capture range is wide：Being wirelessly transferred radius and can reach a kilometer range, base due to wireless data sending transceiver module
Pass through biography of the signal from outdoor wireless collection processor to indoor wireless Acquisition Processor with wireless data sending transceiver module in sheet
Pass, it is ensured that seamless signal source detection is carried out in a kilometer range, so as to expand capture range, the disaster relief and colliery are robbed
There is good application prospect danger etc..
Brief description of the drawings
Fig. 1 is the block diagram of the system；
In figure：
00-WCDMA wireless base stations；
10-outdoor wireless signal acquiring processor,
11-the 1 descending base station signal processing module,
12-the 1 upward signal source signal energy computation module,
13-wireless data sending sending module；
20-indoor radio signal Acquisition Processor,
21-wireless data sending receiver module,
22-uplink synchronous point estimation module,
23-the 2 descending base station signal processing module,
24-the 2 upward signal source signal energy computation module；
30-WCDMA target signal sources.
Fig. 2 is the workflow diagram of the 10 of outdoor wireless signal acquiring processor；
Fig. 3 is the workflow diagram of the 20 of indoor radio signal Acquisition Processor.
English to Chinese
1、SDR：Software Defined Radio, software radio.
2、WCDMA：Wideband Code Division Multiple Access, Wideband CDMA Technology.
3、TMSI：Temporary Mobile Subscriber Identity, interim identity.
Specific embodiment
Described in detail below in conjunction with drawings and Examples.
First, system
1st, it is overall
Such as Fig. 1, the system includes existing WCDMA wireless base stations 00 and WCDMA target signal sources 30；
It is provided with outdoor wireless signal acquiring processor 10 and indoor radio signal Acquisition Processor 20；
Described outdoor wireless signal acquiring processor 10 includes the 1st descending base station signal processing module 11, the 1st up letter
Number source signal energy computation module 12 and wireless data sending sending module 13, the 1st descending base station signal processing module 11 is respectively with the 1st
Upward signal source signal energy computation module 12 and wireless data sending sending module 13 are interacted；
Described indoor radio signal Acquisition Processor 20 includes wireless data sending receiver module 21, uplink synchronous point estimation mould
Block 22, the upward signal source signal energy computation module 24 of the 2nd descending base station signal processing module 23 and the 2nd, wireless data sending are received
The descending base station signal processing module 23 of module 21 and the 2nd is interacted with uplink synchronous point estimation module 22 respectively, and uplink synchronous point is estimated
The meter upward signal source signal energy computation module 24 of module 22 and the 2nd is interacted, the 2nd descending base station signal processing module 23 and the 2nd
Upward signal source signal energy computation module 24 is interacted；
WCDMA wireless base stations 00 send base station downlink signal and give the 1st descending base station signal processing module 11 and the 2nd descending base
Stand signal processing module 23；
WCDMA target signal sources 30 send upward signal on the 1st upward signal source signal energy computation module 12 and the 2nd
Row signal source signal energy computation module 24.
2nd, functional part
1）Outdoor wireless signal acquiring processor 10
Hardware configuration：Using the hardware frame based on software radio general-purpose platform, the software radio of USRP2 has been selected
Exploitation hardware configuration.
Embedded module includes the 1st descending base station signal processing module 11, the 1st upward signal source signal energy computation module
12 and wireless data sending sending module 13；
* the 1 descending base station signal processing module 11：Mainly the collection and its treatment of outdoor base station signal are realized, and obtain
The specifying information of outdoor base station signal.
* the 1 upward signal source signal energy computation module 12：The main calculating for realizing outdoor target signal source energy.
* wireless data sending sending module 13：The outdoor base station information that mainly outdoor base station signal processing module is obtained is led to
Cross wireless data sending signal and be sent to wireless data sending receiver module.
2）Indoor radio signal Acquisition Processor 20
Hardware configuration：Using the hardware frame based on software radio general-purpose platform, the software radio of USRP2 has been selected
Exploitation hardware configuration.
Embedded module includes wireless data sending receiver module 21, uplink synchronous point estimation module 22, the 2nd descending base station signal
The upward signal source signal energy computation module 24 of processing module 23 and the 2nd；
* wireless data sending receiver module 21：Mainly receive the number biography aerogram that wireless data sending sending module is sended over
Number.
* uplink synchronous point estimation module 22：Mainly treatment comes from the descending base of wireless data sending receiver module 21 and the 2nd
Stand the information of signal processing module 23, required for obtaining the 2nd upward signal source signal energy computation module 24 by calculating estimation
Synchronous point information.
* the 2 descending base station signal processing module 230：The main collection and its treatment for realizing indoor base station signal, and
To the specifying information of indoor base station signal.
* the 2 upward signal source signal energy computation module 24：The main meter for realizing interior WCDMA target signal source energy
Calculate.
3）WCDMA wireless base stations 00
WCDMA wireless base stations 00 are the general transmitting base stations based on world 3GPP standards, and the standard of base station is WCDMA marks
It is accurate.
4）WCDMA target signal sources 30
WCDMA target signal sources 30 are the terminals of the WCDMA standards based on world 3GPP standards, and needs are detected
Target terminal.
3rd, the working mechanism of the system：
When indoor WCDMA base station signals are covered under very poor or uncovered environment, indoor wireless data collection processor
10 WCDMA target signal source synchronous point positions that cannot be parsed according to the 2nd descending base station signal processing module 23 and its up
Scrambler goes to calculate the energy of pilot tone, so as to the detection of target signal source cannot be carried out；Because in order to WCDMA target signal sources 30
Accurately detecting must parse the pilot channel of target signal source, must in order to parse the pilot channel of WCDMA target signal sources 30
The uplink scrambling code of WCDMA target signal sources 30 is distributed in the synchronous point position and base station of notice road pilot channel, and the two are believed
Breath is parsed from WCDMA base station informations；Wireless data sending transmitting-receiving mould is introduced in order to overcome this kind of rough sledding, in design
Block and the aided detection of WCDMA signal sources is carried out using the constant-temperature crystal oscillator method that synchronizes of skew rule.Wireless data sending is
Being wirelessly transferred for short-distance and medium-distance is carried out by unlicensed band 433MHz, with the spy such as low cost, good stability, interface is simple
Point, it is achieved thereby that base station signal is from outdoor to indoor transmission；Constant-temperature crystal oscillator is the crystal oscillator type used in SDR platforms, tool
There is stability high, relative to reference clock offset direction and rate stabilization, the time for being especially suitable for carrying out between distinct device is same
Step；First in the good place of WCDMA outdoor covers by outdoor wireless signal acquiring processor 10 and indoor nothing in the system design
Line signal acquisition process device 20 carries out the synchronization of cell to same WCDMA base stations respectively, then according to the skew of constant-temperature crystal oscillator
Rule carries out the time synchronized of outdoor wireless signal acquiring processor 10 and indoor radio signal Acquisition Processor 20, synchronous rear chamber
Interior wireless signal acquiring processor 20 then completely can according to wireless data transmission module be transmitted through come WCDMA target signal sources 30 it is upper
Row scrambler and synchronous point position carry out the calculating of the pilot energy of WCDMA target signal sources 30, so as to realize the accurate spy of target
Survey.
2nd, method
1st, the workflow of outdoor wireless signal acquiring processor 10
Such as Fig. 2, the workflow of outdoor wireless signal acquiring processor 10 comprises the following steps：
WCDMA base station signals near a, the 1st base station signal processing module 11 pairs carry out cell searching -201, obtain equipment
The cell information on periphery；
B, judge the location of present equipment whether be -202 in cell range where WCDMA target signal sources 30,
It is then to enter step c, otherwise jumps to step a；
C, the data to Target cell carry out parsing 203, and all WCDMA signal sources under base station bottom are obtained by parsing
TMSI information；
Whether there is the TMSI-204 of WCDMA target signal sources 30 in the TMSI that d, judgement are parsed, be then to enter step e,
Otherwise jump to step c；
E, the uplink scrambling code to WCDMA target signal sources 30 and synchronous point position carry out parsing -205；
F, obtained according to synchronous point position and its uplink scrambling code WCDMA target signal sources 30 pilot channel data and count
Calculate pilot energy, so as to realize that the target signal source of outdoor is accurately detected, finally by digital transmission module by synchronous point position and
Its uplink scrambling code sends -206.
2nd, the workflow of outdoor wireless signal acquiring processor 20
Such as Fig. 3, the workflow of indoor radio signal Acquisition Processor 20 comprises the following steps：
A, wireless data sending receiver module 21 constantly detect aerial wireless data sending signal -301, when wireless data sending receiver module
21 detect wireless data sending signal on 433MHz frequency ranges can automatic identification；
B, judge whether to detect wireless data sending signal -302, be then to enter step C, otherwise jump to step A continue into
Row detection；
C, the target synchronization point position obtained to the 2nd descending base station signal processing module 23 and the target obtained from number biography are same
Beans-and bullets shooter position carried out estimating -303, and outdoor data acquisition processor 10 and indoor wireless are carried out according to the characteristics of constant-temperature crystal oscillator
The synchronous point estimation procedure of data collection processor 20, obtains two average offset values of crystal oscillator；
D, the mean deviation obtained according to synchronous point estimation be worth to the synchronous point position of WCDMA target signal sources 30-
304；
E, the synchronous point position and its uplink scrambling code value that are obtained according to estimation are gone to obtain the pilot data of target signal source, and
Energy -305 of pilot data are calculated, so as to realize accurate detection according to energy value size.
Claims (3)
1. a kind of wireless data transmission module based on SDR platforms aids in WCDMA signal source detection methods, it is characterised in that：
1. outdoor wireless signal acquiring processor (10) and indoor radio signal Acquisition Processor (20) are placed on room together first
Outer WCDMA base stations parse relatively good place and the Target cell of WCDMA base stations is synchronized, and outdoor wireless signal is adopted
Set processor (10) is begun to the uplink scrambling code of WCDMA target signal sources (30) and synchronous point position after parsing the cell of target
Put and be transmitted by wireless data sending sending module (13)；
2. the wireless data sending receiver module (21) in indoor radio signal Acquisition Processor (20) when detect wireless data sending send
The wireless data sending signal that module (13) is sended over then starts reception and comes from outdoor wireless signal acquiring processor (10) parsing
The uplink scrambling code of the WCDMA target signal sources (30) for going out and synchronous point position simultaneously pass to uplink synchronous point estimation module (22)；
Uplink synchronous point estimation module (22) is according to the WCDMA target signal sources obtained from the 2nd descending base station signal processing module (23)
The synchronous point position and uplink scrambling code that synchronous point position and uplink scrambling code and wireless data sending receiver module (21) obtain are contrasted
Estimate, so as to obtain between outdoor wireless signal acquiring processor (10) and indoor radio signal Acquisition Processor (20) crystal oscillator
Skew rule, obtains bias estimation value；
3. the 2nd upward signal source signal energy computation module (24) then connects according to the bias estimation value and wireless data sending being calculated
The synchronous point position that receipts module (21) are received be added and obtains corresponding to final indoor radio signal Acquisition Processor (20)
WCDMA target signal sources synchronous point position；2nd upward signal source signal energy computation module (24) is according to the synchronization for obtaining
Point position and its uplink scrambling code parse the pilot data of WCDMA target signal sources (30), and then calculate pilot energy, realize
The function of target acquisition；So that indoors under environment, no matter interior WCDMA base station signals cover how poor or blind area, room
Interior wireless signal acquiring processor (20) can capture WCDMA target signal sources according to wireless data sending receiver module (21)
(30) synchronous point position and its uplink scrambling code, so that beneficial to the energy for calculating WCDMA target signal sources；
4. the energy by being calculated goes to estimate WCDMA target signal sources (30) from indoor radio signal Acquisition Processor (20)
Distance distance, so as to accurately be detected to target.
2. a kind of wireless data transmission module as described in claim 1 aids in WCDMA signal source detection methods, it is characterised in that outdoor
The workflow of wireless signal acquiring processor (10) comprises the following steps：
A, the 1st base station signal processing module (11) carry out cell searching (201) to neighbouring WCDMA base station signals, obtain equipment
The cell information on periphery；
B, judge whether the location of present equipment is (202) in cell range where WCDMA target signal sources (30), be
Then enter step c, otherwise jump to step a；
C, the data to Target cell are parsed (203), and the TMSI of all WCDMA signal sources under base station bottom is obtained by parsing
Information；
Whether there is the TMSI-204 of WCDMA target signal sources (30) in d, the TMSI that parses of judgement, be then to enter step e, it is no
Then jump to step c；
E, the uplink scrambling code to WCDMA target signal sources and synchronous point position are parsed (205)；
F, obtained according to synchronous point position and its uplink scrambling code WCDMA target signal sources (30) pilot channel data and calculate
Pilot energy, so as to realize the accurate detection of outdoor, sends out synchronous point position and its uplink scrambling code finally by digital transmission module
See off (206).
3. a kind of wireless data transmission module as described in claim 1 aids in WCDMA signal source detection methods, it is characterised in that indoor
The workflow of wireless signal acquiring processor (20) comprises the following steps：
A, wireless data sending receiver module (21) constantly detect aerial wireless data sending signal (301), when wireless data sending receiver module
(21) wireless data sending signal is detected on 433MHz frequency ranges can automatic identification；
B, judge whether to detect wireless data sending signal (302), be then to enter step C, otherwise jump to step A and proceed inspection
Survey；
C, the target synchronization point position obtained to the 2nd descending base station signal processing module (23) and the object synchronization obtained from number biography
(303) are estimated in point position, and outdoor data acquisition processor (10) and indoor nothing are carried out according to the characteristics of constant-temperature crystal oscillator
The synchronous point estimation procedure of line data collection processor (20), obtains two average offset values of crystal oscillator；
D, the mean deviation obtained according to synchronous point estimation are worth to the synchronous point position (304) of WCDMA target signal sources (30)；
E, the synchronous point position and its uplink scrambling code value that are obtained according to estimation are gone to obtain the pilot data of WCDMA target signal sources,
And the energy (305) of pilot data is calculated, so as to realize accurate detection according to energy value size.
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| CN106357277B (en) * | 2016-08-29 | 2018-08-31 | 武汉虹旭信息技术有限责任公司 | Device is selected to enhance WCDMA infant laser signal detection methods with energy brush based on SDR platforms |
| CN107347180B (en) * | 2017-02-16 | 2020-05-15 | 上海白虹软件科技股份有限公司 | High-precision synchronous data transmission device and data transmission method |
| CN112737703B (en) * | 2020-12-21 | 2023-04-28 | 武汉虹旭信息技术有限责任公司 | Mobile communication signal source detection method and device, electronic equipment and storage medium |
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| US20100029295A1 (en) * | 2008-07-31 | 2010-02-04 | Assaf Touboul | Gps synchronization method for wireless cellular networks |
| CN102547828A (en) * | 2010-12-31 | 2012-07-04 | 中国移动通信集团江苏有限公司 | Device and method for testing performance of mobile communication network |
| CN102595480A (en) * | 2012-01-19 | 2012-07-18 | 大唐移动通信设备有限公司 | Position information determining method and device |
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| US20080039133A1 (en) * | 2006-08-08 | 2008-02-14 | Nortel Networks Limited | Method and system for wireless communication in multiple operating environments |
| US20100029295A1 (en) * | 2008-07-31 | 2010-02-04 | Assaf Touboul | Gps synchronization method for wireless cellular networks |
| CN102547828A (en) * | 2010-12-31 | 2012-07-04 | 中国移动通信集团江苏有限公司 | Device and method for testing performance of mobile communication network |
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