CN102970671A - Communication data acquisition method, pseudo base station and pseudo terminal - Google Patents
Communication data acquisition method, pseudo base station and pseudo terminal Download PDFInfo
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- CN102970671A CN102970671A CN2012104914629A CN201210491462A CN102970671A CN 102970671 A CN102970671 A CN 102970671A CN 2012104914629 A CN2012104914629 A CN 2012104914629A CN 201210491462 A CN201210491462 A CN 201210491462A CN 102970671 A CN102970671 A CN 102970671A
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Abstract
The embodiments of the invention provide a communication data acquisition method, a pseudo base station and a pseudo terminal. According to the communication data acquisition method, the pseudo base station and the pseudo terminal, uplink communication data which is sent by a target terminal and received by the pseudo base station is forwarded to a base station of a public network through the pseudo terminal, and downlink communication data fed back by the base station of the public network is forwarded to the target terminal, so that the no-interruption of the communication between the target terminal and the public network is guaranteed while the communication data of the target terminal is acquired, and then, the target terminal can not perceive communication abnormality.
Description
Technical field
The present invention relates to the communications field, relate in particular to communication data acquisition methods and pseudo-base station, pseudo-terminal.
Background technology
In existing communication network, terminal communicates by base station and the external world, in some special situation, need to obtain the Content of Communication in terminal and the external world, for example, when army, public security or state security department are scouted sensitive target, need to obtain the communication data in target terminal and the external world.
The method of obtaining at present target terminal and extraneous communication data is: set up pseudo-base station, target terminal is taken under the control of pseudo-base station, after target terminal resides in pseudo-base station, the signaling of authentication and service request can be sent to terminal in pseudo-base station, obtain the part communication data of target terminal, such as: the identity information of target terminal, particular location, part Content of Communication etc.
But because pseudo-base station is with communicate by letter between the public network can not direct communication, therefore, target terminal has also just lost with the public network of communicating by letter and has contacted, thus cause easily target terminal can aware communication unusually.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of communication data acquisition methods and pseudo-base station, pseudo-terminal, and purpose is to solve the problem that the target terminal that exists in the existing communication data acquisition methods can't communicate with the public network of communicating by letter.
To achieve these goals, the embodiment of the invention has proposed following technical scheme:
A kind of communication data acquisition methods comprises:
The uplink communication data that the receiving target terminal sends, described uplink communication data are obtained and are sent by pseudo-base station;
Give the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
Receive the downlink communication data that described the first public network base station sends to described target terminal;
Give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
Preferably, definite method of described the first public network base station comprises:
Receive base station signal;
Remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal;
According to described public network base station signal, the signal strength signal intensity of public network base station is sorted;
The public network base station of signal strength signal intensity maximum is defined as the first public network base station.
Preferably, describedly comprise to the first public network base station described uplink communication data retransmission:
According to the state parameter of the first public network, change the parameter in the described uplink communication data;
Uplink communication data after the change parameter are sent to described the first public network base station.
Preferably, described the first public network base station of the described reception downlink communication data that send to described target terminal comprise:
Receive whole signals that described the first public network base station sends;
When receiving described the first public network base station and send to the signal of described target terminal, store the signal that described the first public network base station sends to described target terminal.
A kind of communication data acquisition methods comprises:
Obtain the uplink communication data that target terminal sends;
Described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
Described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
Give described target terminal with described downlink communication data retransmission.
Preferably, the described uplink communication data of obtaining the target terminal transmission comprise:
Characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
Send downstream signal to described target terminal, take over described target terminal;
Receive the uplink communication data that described target terminal sends.
Preferably, describedly comprise to described target terminal described downlink communication data retransmission:
Characteristic parameter in the described downlink communication data is changed to the characteristic parameter of described the second public network base station;
Downlink communication data behind the modification characteristic parameter are sent to described target terminal.
Preferably, described state parameter comprises:
Operating frequency; Perhaps,
The work code word.
A kind of pseudo-terminal comprises:
Receiver module is used for the uplink communication data that the receiving target terminal sends, and described uplink communication data are obtained and sent by pseudo-base station, and, receive the downlink communication data that described the first public network base station sends to described target terminal;
Forwarding module, be used for described uplink communication data retransmission to the first public network base station, described the first public network base station has different state parameters from described pseudo-base station, and, give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
Preferably, described pseudo-terminal also comprises:
The first public network base station determination module, be used for receiving base station signal, remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal, according to described public network base station signal, signal strength signal intensity to the public network base station sorts, and the public network base station of signal strength signal intensity maximum is defined as the first public network base station.
Preferably include:
The first parameter change unit is used for the state parameter according to the first public network, changes the parameter in the described uplink communication data;
The first transmitting element, the uplink communication data that are used for changing after the parameter send to described the first public network base station.
Preferably, described receiver module comprises:
Receiving element is used for receiving whole signals that described the first public network base station sends;
Memory cell is used for storing the signal that described the first public network base station sends to described target terminal when receiving described the first public network base station and send to the signal of described target terminal.
A kind of pseudo-base station comprises:
Acquisition module is used for obtaining the uplink communication data that target terminal sends, and described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
Sending module, be used for described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station, and, give described target terminal with described downlink communication data retransmission.
Preferably, described acquisition module comprises:
The camouflage unit is used for characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
Take over the unit, be used for sending downstream signal to described target terminal, take over described target terminal;
The uplink receiving unit is used for receiving the uplink communication data that described target terminal sends.
Preferably, described sending module comprises:
The second parameter change unit is for the characteristic parameter that the characteristic parameter of described downlink communication data is changed to described the second public network base station;
The second transmitting element, the downlink communication data that are used for revising behind the characteristic parameter send to described target terminal.
The communication data acquisition methods that the embodiment of the invention provides and pseudo-base station, pseudo-terminal, the uplink communication data communication device that the target terminal that pseudo-base station is received sends is crossed pseudo-terminal, be transmitted to the public network base station, and with the downlink communication data retransmission of public network base station feedback to target terminal, so that when obtaining the communication data of target terminal, guarantee that target terminal does not interrupt with communicating by letter of public network, thereby so that target terminal can aware communications unusually.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the disclosed a kind of communication data acquisition methods of the embodiment of the invention;
Fig. 2 is the flow chart of disclosed another the communication data acquisition methods of the embodiment of the invention;
Fig. 3 is the flow chart of disclosed another the communication data acquisition methods of the embodiment of the invention;
Fig. 4 is the flow chart of disclosed another the communication data acquisition methods of the embodiment of the invention;
Fig. 5 is the flow chart of disclosed another the communication data acquisition methods of the embodiment of the invention;
Fig. 6 is the signaling diagram that carries out data communication between target terminal, pseudo-base station and the pseudo-terminal in the disclosed a kind of communication data acquisition methods of the embodiment of the invention;
Fig. 7 is the structural representation of the disclosed a kind of pseudo-terminal of the embodiment of the invention;
Fig. 8 is the structural representation of the disclosed a kind of pseudo-base station of the embodiment of the invention.
Embodiment
The embodiment of the invention discloses a kind of communication data acquisition methods and system, pseudo-base station, pseudo-terminal, purpose is to solve in the process of the communication data that existing pseudo-base station obtains target terminal, the problem that target terminal is complete and the public network base station disconnects, to achieve these goals, in the embodiment of the invention, pseudo-terminal and public network base station communicate, pseudo-terminal will and the public network base station between communication data feed back to pseudo-base station, pseudo-base station sends to target terminal with the communication data of described public network base station again, thereby, in the communication data that obtains the purpose terminal, can guarantee target terminal and the communication of communicating by letter between public network, thereby so that the target terminal impression is unusual less than what communicate by letter.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The disclosed a kind of communication data acquisition methods of the embodiment of the invention is applied to pseudo-terminal, and as shown in Figure 1, described method comprises:
S101: the uplink communication data that the receiving target terminal sends, described uplink communication data are obtained and are sent by pseudo-base station;
Described pseudo-base station refers to the base station in the non-carrier network, pass through technological means, can make the emission of pseudo-base station and public network base station frequency band, the identical signal of standard, follow disclosed mobile communication protocol rules, make terminal think as broad as long with the base station of public network, but direct legal being linked in the public network in pseudo-base station.Terminal resides in after the pseudo-base station, and the signaling of authentication and service request can be sent to terminal in pseudo-base station.Corresponding with pseudo-base station, the public network base station refers to the legitimate base station in the carrier network.
S102: give the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
In the present embodiment, the preferred operating frequency of state parameter or work code word, in gsm system, state parameter is operating frequency, in cdma system, state parameter is the work code word.
S103: receive the downlink communication data that described the first public network base station sends to described target terminal;
S104: give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
Wherein, the uplink communication data can comprise uplink business data and signaling data, and the downlink communication data can comprise downlink service data and signaling data.
The described communication data acquisition methods of present embodiment, pseudo-terminal and the first public network base station communicate, and communication data is transmitted to pseudo-base station, so that pseudo-base station can further be transmitted to target terminal with described communication data, thereby can keep communication connection between target terminal and the public network, therefore, target terminal is " noninductive " for the data forwarding process of pseudo-base station and pseudo-terminal, the data forwarding process that is pseudo-base station and pseudo-terminal is " transparent " for target terminal, thereby is conducive to maintaining secrecy of communication data acquisition process.
Disclosed another the communication data acquisition methods of the embodiment of the invention is applied to pseudo-terminal, as shown in Figure 2, comprising:
S201: receive base station signal;
Described base station signal refers to receive all signals in the public network base station that obtains, for example, pseudo-terminal can receive the signal of public network base station B1, B2, B3, the base station signal that then receives is the signal that B1, B2 and B3 send, except the public network base station signal, pseudo-terminal can also receive the signal of pseudo-base station.
S202: remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal;
Remove the signal of pseudo-base station from base station signal, purpose is that so that the first public network base station has different state parameters from described pseudo-base station, namely pseudo-terminal is not in the control range of pseudo-base station.
S203: according to described public network base station signal, the signal strength signal intensity of public network base station is sorted;
S204: the public network base station of signal strength signal intensity maximum is defined as the first public network base station.
Existing terminal will be carried out the carrier network selection after start and the residential quarter is selected.In the carrier network choice phase, mainly be to select according to the operator's informaiton of SIM card storage.And in the residential quarter choice phase, terminal can be selected all frequencies in the current operator frequency range, selects the strongest base station of signal as the work at present base station, and this process can be carried out in the situation of starting up of terminal always.
Unlike the prior art be, the method that the described pseudo-terminal of present embodiment is selected the work at present base station is as described in the S201 to S204, the first public network base station of determining is the work at present base station of pseudo-terminal.
S205: the uplink communication data that the receiving target terminal sends, described uplink communication data are obtained and are sent by pseudo-base station;
S206: according to the state parameter of the first public network, change the parameter in the described uplink communication data;
S207: the uplink communication data that will change after the parameter send to described the first public network base station;
S208: receive whole signals that described the first public network base station sends;
S209: when receiving described the first public network base station and send to the signal of described target terminal, store the signal that described the first public network base station sends to described target terminal;
S210: give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
The described communication data retransmission method of present embodiment, pseudo-terminal selects a base station as the first public network base station from the public network base station, the uplink communication data of the target terminal that pseudo-base station is sent are issued the first public network base station, and give pseudo-base station with the downlink communication data retransmission of the first public network base station feedback, so that target terminal is issued with the downlink communication data of the first public network base station feedback in pseudo-base station, thereby so that target terminal can keep communicating by letter with the public network base station.
Disclosed another the communication data acquisition methods of the embodiment of the invention is applied to pseudo-base station, as shown in Figure 3, comprising:
S301: obtain the uplink communication data that target terminal sends;
S302: described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
S303: described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
S304: give described target terminal with described downlink communication data retransmission.
The described communication data acquisition methods of present embodiment, pseudo-base station give the first public network base station by pseudo-terminal with the uplink communication data retransmission after obtaining the uplink communication data of target terminal, thereby realized communicating by letter of target terminal and public network.
Disclosed another the communication data acquisition methods of the embodiment of the invention is applied to pseudo-base station, as shown in Figure 4, comprising:
S401: characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
The process of change characteristic parameter specifically comprises:
Pseudo-base station transmitting power is transferred to suitable intensity, pilot signal transmitted on pilot channel, the system message (particular content of each field is set according to actual conditions) shown in the structure table 1 sends this message at broadcast channel.The system message of structure mainly comprises system message 1, system message 2, system message 2bis, system message 2ter, system message 3, system message 4, system message 5, system message 5bis, system message 5ter, system message 6, system message 7, system message 8 and system message 9 etc.Send mode and the main contents of these system messages are as shown in table 1:
Table 1
S402: send downstream signal to described target terminal, take over described target terminal;
Finish the change of characteristic parameter when pseudo-base station after, send downstream signal to target terminal, target terminal thinks that namely the downstream signal that receives is that the second public network base station sends, and therefore, the adapter to target terminal is finished in pseudo-base station.
S403: receive the uplink communication data that described target terminal sends;
S404: described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, it is described that described the first public network base station and described pseudo-base station have different state parameters;
S405: described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
S406: the characteristic parameter that the characteristic parameter in the described downlink communication data is changed to described the second public network base station;
S407: the downlink communication data that will revise behind the characteristic parameter send to described target terminal.
Method described in the present embodiment, pseudo-base station keeps communicating by letter between target terminal and public network by pseudo-terminal, and what cause so that target terminal can not be experienced the factor data acquisition process is unusual, has better confidentiality.
Above-described embodiment is set forth the acquisition process of communication data from the angle of pseudo-terminal or pseudo-base station respectively, and the below will set forth the communication data acquisition methods that the present invention proposes from the angle of the data-acquisition system that comprises pseudo-terminal and pseudo-base station.
Disclosed another the communication data acquisition methods of the embodiment of the invention as shown in Figure 5, comprising:
S501: utilize pseudo-terminal to obtain the characteristic parameter of public network base station, pseudo-base station disguise as the second public network base station;
The detailed process of pretending of change characteristic parameter repeats no more here as described in the above-mentioned embodiment.
S502: pseudo-base station sends downstream signal to described target terminal, takes over described target terminal;
S503: pseudo-terminal is determined the first public network base station that self works;
Detailed process comprises: pseudo-terminal receives base station signal, remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal and according to described public network base station signal, the signal strength signal intensity of public network base station is sorted, and the public network base station of signal strength signal intensity maximum is defined as the first public network base station.
S504: the uplink communication data that pseudo-base station receiving target terminal sends;
S505: pseudo-base station sends to pseudo-terminal with the uplink communication data that target terminal sends;
S506: pseudo-terminal carries out described uplink communication data to issue the first public network base station after the characteristic parameter change;
S507: the first public network base station feedback downlink communication data are to pseudo-terminal;
S508: pseudo-terminal sends to pseudo-base station with described downlink communication data;
S509: pseudo-base station carries out described downlink communication data to send to target terminal after the characteristic parameter change.
Wherein, in the practical application, take gsm system as example, the detailed process of S504 to S506 comprises as shown in Figure 6 in the present embodiment:
(1) after wireless subsystem (Radio SubSystem, RSS) receives " channel request " message that MS sends out, sends " channel required " message to RRC State Machine (Radio Resource State Machine, RRSM).After RRSM receives, send out " channel required received " message to local resource manager (Cell Resource Manager, CRM).If CRM has resource to distribute, send out " channel assigned " message to RRSM.After RRSM receives, send out " channel activation " message to RSS, after RSS receives, send out " channel activation acknowledge " message to RRSM.Next, RRSM sends out " immediate assign command " to RSS, RSS issues MS(with this message and is allowing access channel (Accesss Grant Channel, AGCH) on), and begin to distribute Dedicated Control Channel, set up the signaling link between travelling carriage (Mobile Station, MS) and the base station sub-system (Base Station Subsystem, BSS).
(2) after signaling link was built up, MS sends out " CM service Request ", and message was to RS S (on SDCCH), and RSS issues RRSM with this message.RRSM sends out message on one side to RSS, requires the access power of MS is controlled; On one side by SCCP state machine (SCCP State Machine, SSM; SCCP:Signaling Connection Control Part SCCP) and Message Transfer Part (Message TransferPart, MTP) send out " CM service Request " message to (the Mobile Switching Center of mobile switching centre, MSC) (CR message), the request access service.After MSC accepted, a CC message to SSM, represented CONNect Acknowledgement by MTP.
(3) carry out authentication.MSC passes through MTP, SSM, RRSM, RSS to MS with authentication request.After the MS response, Authentication Response is issued MSC by these software modules.
(4) after the authentication success, begin to be encrypted.MSC passes through MTP, SSM, RRSM, RSS to MS with encrypted command.MS finishes message with encryption and issues MSC by these software modules after encrypting.
(5) MS sends out " set up " message to MSC by RSS, RRSM, SSM, MTP.After VLR issued MSC with " complete call " message, MSC sent out " call proceeding " message to MS response " set up " message by RSS, RRSM, SSM, MTP.
In realization, all parts on Um the right can be thought base station and network portion, pseudo-base station receives that these information just are transmitted to pseudo-terminal, and pseudo-terminal is transmitted to the public network base station after doing corresponding modify, naturally just can be dealt into the destination of message.
The main contents of message modification have: frequency point information, LAI.
Need to prove, for authentication, owing to can only carry out the base station to the authentication of terminal in the GSM system, and in message is transmitted with the total data transparent forwarding of authentication, the terminal authentication data that receive the base station are the same with the situation of not using pseudo-base station and pseudo-terminal to transmit, like this with regard to an authentication by the base station surely.
Embodiment is corresponding with said method, the embodiment of the invention also discloses a kind of pseudo-terminal, as shown in Figure 7, comprising:
Receiver module 701 is used for the uplink communication data that the receiving target terminal sends, and described uplink communication data are obtained and sent by pseudo-base station, and, receive the downlink communication data that described the first public network base station sends to described target terminal;
Further, described receiver module specifically comprises:
Receiving element 7011 is used for receiving whole signals that described the first public network base station sends;
Memory cell 7012 is used for storing the signal that described the first public network base station sends to described target terminal when receiving described the first public network base station and send to the signal of described target terminal.
Forwarding module 702, be used for described uplink communication data retransmission to the first public network base station, described the first public network base station has different state parameters from described pseudo-base station, and, give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
Further, described forwarding module can specifically comprise:
The first parameter change unit 7021 is used for the state parameter according to the first public network, changes the parameter in the described uplink communication data;
The first transmitting element 7022, the uplink communication data that are used for changing after the parameter send to described the first public network base station.
Preferably, the described pseudo-terminal of present embodiment can also comprise:
The first public network base station determination module 703, be used for receiving base station signal, remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal, according to described public network base station signal, signal strength signal intensity to the public network base station sorts, and the public network base station of signal strength signal intensity maximum is defined as the first public network base station.
The described pseudo-terminal of present embodiment, can with the public network base station communication, thereby can guarantee communicating by letter between target terminal and public network base station.
The embodiment of the invention also discloses a kind of pseudo-base station, as shown in Figure 8, comprising:
Acquisition module 801 is used for obtaining the uplink communication data that target terminal sends, and described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
Further, described acquisition module can preferably include:
Camouflage unit 8011 is used for characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
Take over unit 8012, be used for sending downstream signal to described target terminal, take over described target terminal;
Uplink receiving unit 8013 is used for receiving the uplink communication data that described target terminal sends.
Sending module 802, be used for described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station, and, give described target terminal with described downlink communication data retransmission.
Further, described sending module can preferably include:
The second parameter change unit 8021 is for the characteristic parameter that the characteristic parameter of described downlink communication data is changed to described the second public network base station;
The second transmitting element 8022, the downlink communication data that are used for revising behind the characteristic parameter send to described target terminal.
The described pseudo-base station of present embodiment, when taking over target terminal, target terminal by pseudo-terminal the data that target terminal sends sent to the public network base station, and the communication data of public network base station feedback is transmitted to target terminal, so that can not be interrupted with communicating by letter of public network.
In the prior art, when using pseudo-base station to obtain the communication data of target terminal, pseudo-base station is taken over target terminal and is got final product, and target terminal disconnects with communicating by letter of public network, when target terminal need to be with the public network data communication, the situation that communication abnormality can occur, therefore, target terminal is perceived unusually easily, and the described pseudo-base station of present embodiment and the described pseudo-terminal of a upper embodiment are used, can guarantee that in the situation of the data of obtaining target terminal the maintenance target terminal is communicated by letter with public network, thereby makes target terminal can not perceive pseudo-base station obtaining its communication data.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that same or similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (15)
1. a communication data acquisition methods is characterized in that, comprising:
The uplink communication data that the receiving target terminal sends, described uplink communication data are obtained and are sent by pseudo-base station;
Give the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
Receive the downlink communication data that described the first public network base station sends to described target terminal;
Give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
2. method according to claim 1 is characterized in that, definite method of described the first public network base station comprises:
Receive base station signal;
Remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal;
According to described public network base station signal, the signal strength signal intensity of public network base station is sorted;
The public network base station of signal strength signal intensity maximum is defined as the first public network base station.
3. method according to claim 1 and 2 is characterized in that, describedly comprises to the first public network base station described uplink communication data retransmission:
According to the state parameter of the first public network, change the parameter in the described uplink communication data;
Uplink communication data after the change parameter are sent to described the first public network base station.
4. method according to claim 1 and 2 is characterized in that, the downlink communication data that described the first public network base station of described reception sends to described target terminal comprise:
Receive whole signals that described the first public network base station sends;
When receiving described the first public network base station and send to the signal of described target terminal, store the signal that described the first public network base station sends to described target terminal.
5. a communication data acquisition methods is characterized in that, comprising:
Obtain the uplink communication data that target terminal sends;
Described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station;
Described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
Give described target terminal with described downlink communication data retransmission.
6. method according to claim 5 is characterized in that, the described uplink communication data of obtaining the target terminal transmission comprise:
Characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
Send downstream signal to described target terminal, take over described target terminal;
Receive the uplink communication data that described target terminal sends.
7. method according to claim 6 is characterized in that, describedly comprises to described target terminal described downlink communication data retransmission:
Characteristic parameter in the described downlink communication data is changed to the characteristic parameter of described the second public network base station;
Downlink communication data behind the modification characteristic parameter are sent to described target terminal.
8. method according to claim 1 or 5 is characterized in that described state parameter comprises:
Operating frequency; Perhaps,
The work code word.
9. a pseudo-terminal is characterized in that, comprising:
Receiver module is used for the uplink communication data that the receiving target terminal sends, and described uplink communication data are obtained and sent by pseudo-base station, and, receive the downlink communication data that described the first public network base station sends to described target terminal;
Forwarding module, be used for described uplink communication data retransmission to the first public network base station, described the first public network base station has different state parameters from described pseudo-base station, and, give described pseudo-base station with the downlink communication data retransmission of described target terminal, so that the described downlink communication data retransmission in described pseudo-base station is given described target terminal.
10. pseudo-base station according to claim 9 is characterized in that, also comprises:
The first public network base station determination module, be used for receiving base station signal, remove the pseudo-base station signal in the described base station signal, obtain the public network base station signal, according to described public network base station signal, signal strength signal intensity to the public network base station sorts, and the public network base station of signal strength signal intensity maximum is defined as the first public network base station.
11. pseudo-base station according to claim 9 is characterized in that, described forwarding module comprises:
The first parameter change unit is used for the state parameter according to the first public network, changes the parameter in the described uplink communication data;
The first transmitting element, the uplink communication data that are used for changing after the parameter send to described the first public network base station.
12. pseudo-base station according to claim 9 is characterized in that, described receiver module comprises:
Receiving element is used for receiving whole signals that described the first public network base station sends;
Memory cell is used for storing the signal that described the first public network base station sends to described target terminal when receiving described the first public network base station and send to the signal of described target terminal.
13. a pseudo-base station is characterized in that, comprising:
Acquisition module is used for obtaining the uplink communication data that target terminal sends, and described the first public network base station that receives described pseudo-terminal forwarding sends to the downlink communication data of described target terminal;
Sending module, be used for described uplink communication data are sent to pseudo-terminal, so that described pseudo-terminal is given the first public network base station with described uplink communication data retransmission, described the first public network base station has different state parameters from described pseudo-base station, and, give described target terminal with described downlink communication data retransmission.
14. pseudo-base station according to claim 13 is characterized in that, described acquisition module comprises:
The camouflage unit is used for characteristic parameter is revised as the characteristic parameter of the second public network base station at described target terminal place, with disguise as the second public network base station;
Take over the unit, be used for sending downstream signal to described target terminal, take over described target terminal;
The uplink receiving unit is used for receiving the uplink communication data that described target terminal sends.
15. pseudo-base station according to claim 13 is characterized in that, described sending module comprises:
The second parameter change unit is for the characteristic parameter that the characteristic parameter of described downlink communication data is changed to described the second public network base station;
The second transmitting element, the downlink communication data that are used for revising behind the characteristic parameter send to described target terminal.
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