Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system that detect interference source in up going route, to solve the problem of the terminal that can't determine to produce interference during uplink interference detects in the prior art.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method that detects interference source in up going route, described method comprises: serving BS is subordinate's terminal configuration interference parameter and interference triggered incident; Described terminal detects the power parameter of neighbours base station in real time; Described terminal is according to the power parameter of detecting neighbours base station, the interference parameter that has disposed and the transmitting power of self, determine whether to satisfy described interference triggered incident, if, then determine certainly as interference source, and report interferometry to report to described serving BS, otherwise, do not report described interferometry report.
In such scheme, described serving BS for the interference parameter of subordinate's terminal configuration and the interference triggered incident is specially following combination one or more: described interference parameter comprises neighbours' base station down power threshold and terminal transmit power threshold value, and the interference triggered incident comprises: the descending power of the neighbours base station that terminal receives greater than the transmitting power of neighbours' base station down power threshold and terminal self greater than the terminal transmit power threshold value; The terminal that comprises described interference parameter arrives the interfering signal power threshold value of neighbours base station, and described interference triggered incident comprises: terminal arrives the interfering signal power threshold value of neighbours base station greater than terminal to the interfering signal power of neighbours base station; Described interference parameter comprises total interfering signal power of neighbours base station and the interference ratio threshold value that terminal arrives the neighbours base station, and described interference triggered incident comprises: terminal arrives the interference ratio threshold value of neighbours base station greater than terminal to the interference ratio of neighbours base station.
In such scheme, before described serving BS was described terminal configuration interference parameter and interference triggered incident, described method also comprised: serving BS is by determining described interference parameter and interference triggered incident with described neighbours' base station negotiate.
In such scheme, described serving BS is the process of described terminal configuration interference parameter and interference triggered incident, is specially: serving BS is described terminal configuration interference parameter and interference triggered incident by the configuration messages in the radio resource control or by public broadcasting message.
In such scheme, described terminal detects the process of the power parameter of neighbours base station, be specially: terminal receives the message of neighbours' base station broadcast, and detects the power parameter of the transmitting power of the descending power that comprises the neighbours base station and/or neighbours base station from this message.
In such scheme, in described terminal after the report of described serving base stations report interferometry, described method also comprises: described serving BS sends the Interference Control message that comprises described interferometry report to described neighbours base station, to notify the described terminal in described neighbours base station interference has been caused in the neighbours base station.
In such scheme, the report of described interferometry comprise following parameter any one or a plurality of: the physical label or the cell name of that terminal interferes with, neighbours base station institute coverage cell, and the transmitting power of the transmitting power of the descending power of neighbours base station, terminal self, neighbours base station, terminal are to the path loss of neighbours base station.
The present invention also provides a kind of system that detects interference source in up going route, and described system comprises: serving BS and terminal, and wherein: described serving BS is used to described terminal configuration interference parameter and interference triggered incident; Described terminal, be used for detecting in real time the power parameter of neighbours base station, and according to the power parameter of detecting neighbours base station, the interference parameter of described serving BS configuration and the transmitting power of self, determine whether to satisfy described interference triggered incident, if then determine to report interferometry to report to described serving BS from as interference source, otherwise, do not report described interferometry to report to described serving BS.
In such scheme, described serving BS also is used for: by determining described interference parameter and interference triggered incident with described neighbours' base station negotiate.
In such scheme, described serving BS also is used for: after the interferometry report that receives described terminal to report, send the Interference Control message that comprises this interferometry report to described neighbours base station.
The method and system of detection interference source in up going route provided by the present invention, give terminal configuration interference parameter and interference triggered incident by serving BS, terminal is behind the power parameter that detects the neighbours base station, judge according to interference parameter that is disposed and interference triggered incident whether self causes uplink interference to the neighbours base station, and give serving BS with the interferometry report reporting, make serving BS and neighbours base station can know the interference source of uplink interference.The present invention provides a kind of solution route for detecting interference source in up going route, for Interference Control handle effectively, lay a good foundation fast.
Embodiment
Basic thought of the present invention is: serving BS is used to judge whether to produce the interference parameter of interference for subordinate's terminal configuration, and interference triggered incident, after terminal detects the power parameter of neighbours base station, according to the interference parameter that is disposed, judge whether to satisfy the interference triggered incident that is disposed, if, then terminal is determined certainly as interference source, reporting measurement reports is given serving BS, serving BS receives the measurement report of terminal to report, can determine that then described terminal has produced uplink interference to the neighbours base station, otherwise terminal not reporting measurement reports is given serving BS, and then described terminal does not produce uplink interference to the neighbours base station.
A kind of method that detects interference source in up going route of the present invention with reference to shown in Figure 2, mainly may further comprise the steps:
Step 201: serving BS is subordinate's terminal configuration interference parameter, an interference triggered incident;
Step 202: described terminal detects the power parameter of neighbours base station in real time;
Step 203-204: described terminal is according to the power parameter of detecting neighbours base station, the transmitting power of self and the interference parameter that has disposed, determine whether to satisfy described interference triggered incident, if, then continue step 204, determine certainly as interference source, and report interferometry to report to described serving BS, finish the current detection process, otherwise, do not report described interferometry report, directly finish the current detection process.
The report of described interferometry is meant that specifically terminal is detecting when itself being interference source, and measured measurement of correlation report can comprise wireless environment signal message, the cell ID that is interfered with, frequency information etc.
Here, the interferometry report belongs to specific messages, can comprise the sign of terminal, if serving BS has been known the sign of terminal, also can not comprise terminal iidentification in the interferometry report; In addition, described cell ID is specially the sign of the sub-district that terminal interferes with, that the neighbours base station is covered.
Wherein, in described terminal after serving base stations report interferometry report, described method also comprises: described serving BS sends the Interference Control message that comprises described interferometry report to described neighbours base station, to notify the described terminal in described neighbours base station interference has been caused in the neighbours base station.
Wherein, in the described step 201, serving BS is before described terminal configuration interference parameter and the interference triggered incident, and described method also comprises:
Serving BS is by determining described interference parameter and interference triggered incident with described neighbours' base station negotiate.
For realizing said method, the present invention also provides a kind of system that detects interference source in up going route, and with reference to shown in Figure 3, described system comprises: serving BS 31 and terminal 32, wherein: described serving BS 31 is used to described terminal configuration interference parameter and interference triggered incident; Described terminal 32, be used for detecting in real time the power parameter of neighbours base station, and according to the power parameter of detecting neighbours base station, the interference parameter of described serving BS 31 configurations and the transmitting power of self, determine whether to reach described interference triggered incident, if then determine to report interferometry to report to described serving BS 31 from as interference source, otherwise, do not report described interferometry to report to described serving BS 31.
Wherein, described serving BS 31 can also be used for: by determining described interference parameter and interference triggered incident with described neighbours' base station negotiate.
Wherein, described serving BS 31 can also be used for: after receiving the interferometry report that described terminal 32 reports, send the Interference Control message that comprises this interferometry report to described neighbours base station, so that the interference source of self can be learnt in described neighbours base station is described terminal 32, handles so that carry out follow-up Interference Control.
In the practical application, serving BS 31 can be Home eNodeB or macro base station, and described neighbours base station also can be Home eNodeB or macro base station.Terminal can be mobile device in Home eNodeB or macro base station institute coverage cell such as mobile phone etc.
Realize that to using the present invention the specific implementation of the testing process of interference source in up going route is described in further details below in conjunction with accompanying drawing.
Embodiment one
The descending power threshold value by the neighbours base station and the transmitting power threshold value of terminal are finished the testing process of interference source in up going route, and with reference to shown in Figure 4, idiographic flow is as follows:
Step 401: the neighbours base station of the serving BS of this sub-district and neighbor cell is determined interference parameter and interference triggered incident through consultation;
Wherein, determined interference parameter comprises neighbours' base station down power threshold Th1, terminal transmit power threshold value Th2, determined interference triggered incident is specially: the descending power of the neighbours base station that terminal receives is greater than the transmitting power of Th1 and terminal self during greater than Th2, then terminal causes interference to the neighbours base station, need report the interferometry report, otherwise terminal does not cause interference to the neighbours base station, does not need to report the interferometry report.
Here, Th1, Th2's determines and can be realized alternately by X2 mouth or S1 mouth ground side flow process by serving BS and neighbours base station.The concrete value of Th1, Th2 is calculated according to the transmitting power of self and the transmitting power of each terminal in self institute's coverage etc. by the neighbours base station.
Step 402: serving BS connects reprovision (RRC Connection Reconfiguration) message to determined interference parameter of terminal configuration and interference triggered incident in this sub-district by configuration messages in Radio Resource control (RRC, Radio Resource Control) agreement such as RRC;
Step 403: terminal receives the message of neighbours' base station broadcast in real time, from this message, detect neighbours' base station power parameter, wherein, the power parameter of neighbours base station comprises the descending power Rx_Power of neighbours base station, and obtains physical label or cell name that terminal may interfere with, neighbours base station institute coverage cell from the message of neighbours' base station broadcast;
Step 404: terminal is according to interference parameter and interference triggered incident that serving BS disposed, judge whether the descending power Rx_Power of detected neighbours base station and the transmitting power Tx_Power of terminal self all satisfy formula (1), if then continue step 405; Otherwise, finish current flow process;
Rx_Power>Th1,Tx_Power>Th2 (1)
Step 405: terminal determines that self has produced interference to the neighbours base station, and determines to report to the serving base stations report interferometry from as interference source;
Wherein, the report of this interferometry is that terminal interferes with except that comprising, the physical label or cell name of neighbours base station institute coverage cell, can also comprise following parameter any one or a plurality of: the descending power Rx_Power of neighbours base station, the transmitting power Tx_Power of terminal self etc.
Here, terminal can be carried this interferometry by arbitrary existing signaling in the RRC agreement and be reported to serving BS, perhaps terminal can send this signaling to serving BS according to the RRC agreement by consulting to define the signaling that this interferometry report is transmitted in new being used to serving BS in the RRC agreement.
Step 406: serving BS receives the interferometry report of described terminal to report, determines the interference source of described terminal for the neighbours base station, sends Interference Control message to the neighbours base station.Wherein, described Interference Control message comprises described interferometry report.
Afterwards, neighbours base station and serving BS are finished follow-up Interference Control processing more through consultation.
Embodiment two
Finish the testing process of interference source in up going route by terminal to the interfering signal power threshold value of neighbours base station, with reference to shown in Figure 5, idiographic flow is as follows:
Step 501: identical with step 401, different is, here determined interference parameter is the interfering signal power threshold value Th that terminal arrives the neighbours base station, the interference triggered incident is specially terminal to the interfering signal power of neighbours base station during greater than Th, then terminal causes interference to the neighbours base station, need report the interferometry report, otherwise, terminal does not cause interference to the neighbours base station, does not need to report the interferometry report.
Here, terminal is specially the power of neighbours base station interference signal that receive, that come self terminal to the interfering signal power of neighbours base station.
Step 502: serving BS connects by configuration messages in the RRC agreement such as RRC reshuffles (RRCConnection Reconfiguration) message or gives determined interference parameter Th of terminal configuration and interference triggered incident by public broadcasting message such as SIB1 (SystemInformation Block Type1);
Step 503: terminal receives the message of neighbours' base station broadcast in real time, from this message, detect neighbours' base station power parameter, wherein, the power parameter of neighbours base station comprises the descending power Rx_Power of neighbours base station and the transmitting power Tx_N of neighbours base station, and obtains physical label or cell name that terminal may interfere with, neighbours base station institute coverage cell from the message of neighbours' base station broadcast;
Wherein, also can determine in the process of interference parameter in neighbours base station and serving BS, the neighbours base station sends to serving BS with this self transmitting power Tx_N, be in the process of terminal configuration interference parameter at serving BS then, serving BS sends to described terminal with the transmitting power Tx_N of neighbours base station again.
Step 504: terminal is according to the interference parameter Th and the interference triggered incident of configuration, obtain the interfering signal power Delta of terminal by the transmitting power Tx_N of the descending power Rx_Power of detected neighbours base station, neighbours base station, self transmitting power Tx_Power according to formula (2) to the neighbours base station, and judge that whether resulting Delta is greater than the Th that has disposed, if, then continue step 505, otherwise finish current flow process;
Delta=Tx_Power-(Tx_N-Rx_Power) (2)
Step 505: identical with step 405, different is, here the interferometry of terminal to report report is that terminal interferes with except that comprising, the physical label or cell name of neighbours base station institute coverage cell, can also comprise following parameter any one or a plurality of: the transmitting power Tx_N of the descending power Rx_Power of neighbours base station, the transmitting power Tx_Power of terminal self, neighbours base station, terminal are to the path loss of neighbours base station, the physical label of neighbours base station etc.
Wherein, terminal is the transmitting power Tx_Power of terminal self and the difference that terminal arrives the interfering signal power Delta of neighbours base station to the path loss of neighbours base station, is calculated by terminal.
Step 506: identical with step 406.
Embodiment three
Finish the testing process of interference source in up going route by interference ratio, with reference to shown in Figure 6, idiographic flow is as follows:
Step 601: identical with step 401, different is that the interference parameter here comprises: total interfering signal power No of neighbours base station and terminal are to the interference ratio threshold value Pth of neighbours base station; The interference triggered incident be specially terminal to the interference ratio of neighbours base station greater than Pth, then terminal causes interference to the neighbours base station, need report the interferometry report, otherwise terminal does not cause interference to the neighbours base station, does not need to report the interferometry report;
Wherein, No is an interfering signal power summation up reception in neighbours base station, except that self subordinate terminal signal transmitted, all, comprise that described terminal sends to the power of the uplink interference signal of neighbours base station, can directly inform serving BS by the neighbours base station; To be terminal account for the threshold value of proportion of the power summation of all interference signals that the neighbours base station receives to the interfering signal power of neighbours base station to Pth.
Step 602: serving BS connects by configuration messages in the RRC agreement such as RRC reshuffles (RRCConnection Reconfiguration) message or gives determined interference parameter Th of terminal configuration and interference triggered incident by public broadcasting message such as SIB1;
Step 603: terminal receives the message of neighbours' base station broadcast in real time, from this message, detect neighbours' base station power parameter, wherein, the power parameter of neighbours base station comprises the descending power Rx_Power of neighbours base station and the transmitting power Tx_N of neighbours base station, and obtains physical label or cell name that terminal may interfere with, neighbours base station institute coverage cell from the message of neighbours' base station broadcast;
Step 604: terminal is according to the interference parameter and the interference triggered incident that have disposed, by the descending power Rx_Power of described detected neighbours base station, the transmitting power Tx_N of neighbours base station and the transmitting power Tx_Power of self, obtain the interfering signal power Delta of terminal according to formula (2) to the neighbours base station, obtain the interference ratio Pth_U of terminal by the Delta that obtains according to formula (3) again to the neighbours base station, and judge that whether resulting Pth_U is greater than Pth, if, then continue step 605, otherwise, finish current flow process;
Pth_U=Delta/No (3)
Step 605: identical with step 505;
Step 606: identical with step 506.
Need to prove that in actual applications, any one of the interference parameter that can be as required mention among above-mentioned three embodiment of configuration and interference triggered composition of matter or multiple makes the easier realization of testing process of described interference source in up going route in terminal.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.