CN101420716B - Method, system and device for uplink interference source detection - Google Patents

Method, system and device for uplink interference source detection Download PDF

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Publication number
CN101420716B
CN101420716B CN2007101881764A CN200710188176A CN101420716B CN 101420716 B CN101420716 B CN 101420716B CN 2007101881764 A CN2007101881764 A CN 2007101881764A CN 200710188176 A CN200710188176 A CN 200710188176A CN 101420716 B CN101420716 B CN 101420716B
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China
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described
base station
terminal
interference source
neighbours base
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CN2007101881764A
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Chinese (zh)
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CN101420716A (en
Inventor
冯淑兰
刘劲楠
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华为技术有限公司
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Priority to CN200710181732 priority
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Publication of CN101420716A publication Critical patent/CN101420716A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/345Interference values
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Abstract

The invention discloses a method used for detecting uplink interference source, comprising the steps as follows: a base station receives a downlink interference detection result reported by a terminal; the downlink interference detection result is the detection result of the downlink interference source signal of the neighbor base station detected by the terminal; the base station determines the terminal as the uplink interference source of the neighbor base station according to the downlink interference detection result. The embodiment of the invention needs not to transmit uplink interference signal by dividing additional uplink interference transmission interval correspondingly to the uplink interference source detection, thus saving the air interface resource, improving the air interface efficiency and reducing the realization complexity of the base station and the terminal at the same time.

Description

A kind of detection method of interference source in up going route, system and device

Technical field

The present invention relates to communication technical field, particularly a kind of detection method of interference source in up going route, system and device.

Background technology

Along with development of wireless communication devices, more and more stronger to the demand of wireless frequency spectrum.But according to ITU (International Telecommunication Union, International Telecommunications Union) radio regulation(s) frequency partition, the scope of the operable radio frequency of present various wireless traffics is that 9KHz is to 275GHz.Because the finiteness of radio spectrum resources, radio spectrum resources becomes a kind of more and more rare resource.In order to improve wireless frequency spectrum better, particularly authorize the availability of frequency spectrum of frequency range, cognitive radio technology was proposed in recent years, support the wireless device of cognitive radio technology to want dynamic perception surrounding environment, and according to its internal state of the adaptive adjustment of the variation of environment, thereby effectively utilize idle frequency spectrum, and avoid the interference of the interference to other system, particularly authorized user.On the other hand, because radio spectrum resources is very valuable, particularly in the frequency range that does not have well to plan the zone or do not have permission, tending to has a plurality of wireless device operations at identical channel, therefore, system needs real-time detection and judges interference source, and holds consultation with interference source, to evade interference, guarantee communication quality.

Prior art is divided into descending interference and uplink interference with interference relationships, and descending interference is meant that terminal detects the descending interference from the neighbours base station, and uplink interference is meant that the base station detects the uplink interference from the terminal of neighbours system.For correct detection and judgement down interference source, prior art adopts at predefined time slot (being called descending compossibility message interval or descending compossibility signaling at interval), the base station sends and comprises base station IDs (Identifier, identify) and out of Memory, the signal (being called descending compossibility message or signaling) of base station IP (Internet Protocol, Internet Protocol) address information for example.If terminal can be at these predetermined time slots, receive signal from other system base-station, and obtain the base station IDs wherein comprised, and/or base station IP address information, and/or the IP address of acting on behalf of Proxy of base station, then terminal can be judged the descending interference that oneself is subjected to from institute's base stations detected.For correct detection and judgement interference source in up going route, prior art adopts at predefined time slot (being called up compossibility message interval), terminal sends and comprises Termination ID and Terminal Service base station IDs and out of Memory, for example signal of base station IP address information (being called up compossibility message).If the base station can detect signal from other system terminal at these up compossibility message intervals, and obtain the information that wherein comprised, then the uplink interference that oneself is subjected to from the terminal of received signal can be judged in the base station.

The inventor finds that therefore, the interface-free resources that takies is more owing to be used to detect the signal demand of down interference source and interference source in up going route and send at different time slots respectively, and efficient is lower.In addition, base station and terminal need be carried out corresponding signal transmission and detection at two kinds of Interference Detection, have increased the complexity of base station and terminal.

The method of the another kind of detection and Identification interference source in up going route that prior art proposes is to send the time slot that is used to discern interference source in up going route in predefine, each terminal respectively in certain location with the maximum power transmission energy pulse.The neighbours base station is after this time slot detects energy pulse, and record is greater than the residing position of energy pulse of certain thresholding, and this thresholding can think base station oneself is caused the thresholding of effective interference.The neighbours base station also sends to the position of all detected effective interference the serving BS of these interfered with terminal.The positional information that the serving BS of interfered with terminal sends according to the neighbours base station can be judged which terminal causes interference to the neighbours base station, thereby can take measures necessary, disturbs and evades.But this method also needs to reserve interface-free resources and sends the signal that is used for the uplink interference detection, therefore, has taken certain interface-free resources.Base station and terminal need detect at uplink interference carries out corresponding signal transmission and detection, has increased the complexity of base station and terminal equally.In addition, this method base station at first needs to be informed in specific time slot, is that the terminal of which system is sending interference signal, otherwise can't finds the neighbours base station, should use certain limitation.

Therefore, the method that interference source in up going route detects in the prior art need be used extra interface-free resources, transmit and be used for the signal that interference source in up going route detects, interface-free resources has been caused certain waste, and base station and terminal also need to increase functions such as certain uplink signal transmissions and detection, have increased the complexity of base station and terminal.

Summary of the invention

The problem that the embodiment of the invention will solve provides a kind of detection method, system and device of interference source in up going route, finishes the detection to interference source in up going route to realize the outer interface-free resources of occupying volume not.

For achieving the above object, the embodiment of the invention provides a kind of detection method of interference source in up going route on the one hand, may further comprise the steps: the descending interference detection results that the base station receiving terminal reports, described descending interference detection results are the testing result of described terminal to the down interference source signal of neighbours base station; Described base station determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station; Described base station determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station, specifically comprise: the received power of described neighbours base station to described terminal signaling determined according to described descending interference detection results in described base station, and judge that whether described received power is greater than predetermined threshold, if greater than, then described base station determines that described terminal is the interference source in up going route of described neighbours base station; The received power of described neighbours base station to described terminal signaling determined according to described descending interference detection results in described base station, specifically comprise: described base station is according to the received signal power of the described terminal of obtaining from described descending interference detection results to described neighbours base station, and the effective isotropic radiated power EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling; If the gain of the dual-mode antenna of described terminal is identical, then described base station is according to the received signal power of the described terminal of obtaining from described descending interference detection results to described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal and the receiving antenna gain of described neighbours base station are determined the received power of described neighbours base station to described terminal signaling.

On the other hand, the embodiment of the invention also provides a kind of detection system of interference source in up going route, comprise: terminal, be used to detect the down interference source signal of neighbours base station, and to report descending interference detection results, described descending interference detection results be the testing result of described terminal to the down interference source signal of neighbours base station; The base station is used to receive the descending interference detection results of described terminal to report, and determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station; Described base station comprises: receiver module as a result is used to receive the descending interference detection results of described terminal to report; The interference source determination module is used for determining that according to the descending interference detection results that described receiver module as a result receives described terminal is the interference source in up going route of described neighbours base station; Described interference source determination module comprises: directly determine submodule, being used in described descending interference detection results is described terminal when having detected the down interference source signal of described neighbours base station, determines that described terminal is the interference source in up going route of described neighbours base station; Power is determined submodule, be used for according to the received signal power of the described terminal of obtaining from described descending interference detection results described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling, and judge described neighbours base station to the received power of described terminal signaling whether greater than predetermined threshold, if greater than, determine that then described terminal is the interference source in up going route of described neighbours base station.

Again on the one hand, the embodiment of the invention also provides a kind of base station, comprising: receiver module as a result is used for the descending interference detection results that receiving terminal reports; The interference source determination module is used for determining that according to the descending interference detection results that described receiver module as a result receives described terminal is the interference source in up going route of described neighbours base station; Described interference source determination module comprises: directly determine submodule, being used in described descending interference detection results is described terminal when having detected the down interference source signal of described neighbours base station, determines that described terminal is the interference source in up going route of described neighbours base station; Power is determined submodule, be used for according to the received signal power of the described terminal of obtaining from described descending interference detection results described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling, and judge described neighbours base station to the received power of described terminal signaling whether greater than predetermined threshold, if greater than, determine that then described terminal is the interference source in up going route of described neighbours base station.

By the embodiment of the invention, the base station judges to the testing result of the down interference source signal of neighbours base station whether this terminal is the interference source in up going route of this neighbours base station according to terminal.Therefore, need not detect the extra uplink interference transmission intercal of division and transmit the uplink interference signal, save interface-free resources, also reduce the implementation complexity of base station and terminal at interference source in up going route.

Description of drawings

Fig. 1 is the flow chart of the detection method embodiment one of interference source in up going route of the present invention;

Fig. 2 is the flow chart of the detection method embodiment two of interference source in up going route of the present invention;

Fig. 3 is the flow chart of the detection method embodiment three of interference source in up going route of the present invention;

Fig. 4 is the flow chart of the detection method embodiment four of interference source in up going route of the present invention;

Fig. 5 is the structure chart of the detection system of embodiment of the invention interference source in up going route.

Embodiment

The embodiment of the invention provides a kind of detection method of interference source in up going route, pass through the embodiment of the invention, the base station judges according to the down interference source signal whether terminal detects the neighbours base station whether this terminal is the interference source in up going route of this neighbours base station, thereby need not detect and send special detection signal at interference source in up going route, do not need the outer interface-free resources of occupying volume yet, improve the efficient of eating dishes without rice or wine, also reduced the Interference Detection complexity.

As shown in Figure 1, the flow chart for the detection method embodiment one of interference source in up going route of the present invention specifically may further comprise the steps:

Step S101, terminal detects the down interference source signal from the neighbours base station.After the down interference source signal that detects from the neighbours base station, terminal is determined the ID of down interference source neighbours base station according to the information that is comprised in this down interference source signal, and detects the received signal power of this down interference source neighbours base station.

Step S102, terminal reports descending interference detection results the serving BS of this terminal.This descending interference detection results comprises the ID of the detected down interference source neighbours of terminal base station, and this terminal is to the received signal power of this down interference source neighbours base station.

This descending interference detection results further can also comprise the information of detected other neighbours base stations of terminal, the IP address that comprises the agency of the IP address of above-mentioned neighbours base station or neighbours base station, the EIRP of above-mentioned neighbours base station (Effective Isotropic Radiated Power, effective isotropic radiated power) and antenna gain information, the for example antenna ID of this neighbours base station, and/or the information such as receiving antenna gain of this neighbours base station.

Step S103, serving BS determine the interference source in up going route of this terminal for this neighbours base station according to the descending interference detection results of terminal to report.

As shown in Figure 2, the flow chart for the detection method embodiment two of interference source in up going route of the present invention specifically may further comprise the steps:

Step S201, terminal detects the down interference source signal from the neighbours base station.After the down interference source signal that detects from the neighbours base station, terminal is determined the ID of down interference source neighbours base station according to the information that is comprised in this down interference source signal, and detects the received signal power of this down interference source neighbours base station.

Step S202, terminal reports descending interference detection results the serving BS of this terminal.This descending interference detection results comprises the ID of the detected down interference source neighbours of terminal base station, and this terminal is to the received signal power of this down interference source neighbours base station.

This descending interference detection results further also may comprise the information of detected other neighbours base stations of terminal, the IP address that comprises the agency of the IP address of above-mentioned neighbours base station or neighbours base station, the EIRP of above-mentioned neighbours base station and antenna gain information, the for example antenna ID of this neighbours base station, and/or the information such as receiving antenna gain of this neighbours base station.

Step S203, serving BS is determined the received power of neighbours base station to this terminal signaling according to the descending interference detection results of terminal to report.Concrete implementation method is as follows:

Serving BS according to the neighbours base station of this terminal to report at the received signal power of this terminal, the EIRP of neighbours base station, the maximum transmission power of this terminal, the receiving antenna gain of this neighbours base station, information such as the dual-mode antenna gain of this terminal are determined the received power of this neighbours base station to this terminal signaling.

Suppose the power of neighbours base station incoming terminal, promptly to receive the received signal power of this neighbours base station be P to this terminal RX_NBS, the EIRP of neighbours base station is P EIRP_NBS, the receiving antenna gain of neighbours base station is G RX_NBS, the maximum transmission power of terminal is P MAX_TX_SS, the receiving antenna gain of terminal is G RX_SS, the transmitter antenna gain (dBi) of terminal is G TX_SS, then the neighbours base station is to the received power P of this terminal signaling RX_SSFor:

P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS+(G TX_SS-G RX_SS)

(1)

Further, as the receiving antenna gain G of terminal RX_SSEqual terminal transmitter antenna gain (dBi) G TX_SSThe time, then the neighbours base station is to the received power P of this terminal signaling RX_SSCalculating can further be reduced to:

P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS (2)

Wherein, information such as the EIRP of neighbours base station, antenna gain, the base station can obtain from the end of the down interference source signal that detects the neighbours base station, also can adopt other method to obtain these information of this neighbours base station, for example: the base station obtains these information by backbone network to neighbours' base station requests.

If the receiving antenna gain G of terminal RX_SSWith terminal transmitter antenna gain (dBi) G TX_SSDifference, then the base station further requires this terminal receiving antenna gain of terminal to report G RX_SSWith terminal transmitter antenna gain (dBi) G TX_SSValue give the base station.If the receiving antenna gain of terminal equals the terminal transmitter antenna gain (dBi), then terminal can not report the dual-mode antenna of oneself to gain to the base station.The receiving antenna gain of base station acquiescence terminal equals the transmitter antenna gain (dBi) of terminal, if promptly terminal does not gain to the dual-mode antenna of own serving base stations report oneself, then this serving BS thinks that the dual-mode antenna of terminal gains identical.

Step S204, the base station judge the neighbours base station to the received power of terminal signaling whether greater than predetermined threshold, if greater than, determine that then this terminal is the interference source in up going route of this neighbours base station.If this neighbours base station is not more than predetermined threshold to the received power of terminal signaling, then this base station determines that this terminal is not the interference source in up going route of this neighbours base station.

As shown in Figure 3, the flow chart for the detection method embodiment three of interference source in up going route of the present invention specifically may further comprise the steps:

Step S301, the base station judges whether the terminal of serving this base station has detected the down interference source signal from the neighbours base station.The terminal that the base station is served detects and receives the down interference source signal from the neighbours base station.If certain terminal that the base station is served has detected the down interference source signal from the neighbours base station, then this base station judges that this terminal may be the interference source in up going route of this neighbours base station simultaneously.The terminal that does not detect neighbours' base station down interference source signal is judged in the base station, is not the interference source in up going route of neighbours base station.

Step S302, if detected down interference source signal from the neighbours base station, the received power of neighbours base station to terminal signaling determined in the base station.

After the down interference source signal that has detected from the neighbours base station, the relevant information of all other neighbours base stations that comprised in the down interference source signal of terminal with the received signal power of detected down interference source neighbours base station and this neighbours base station, for example: the ID of neighbours base station, and/or the IP address of neighbours base station, and/or the agency's of neighbours base station IP address, and EIRP of neighbours base station, antenna gain information etc., report oneself serving BS.

Serving BS is receiving the down interference source of this terminal to report, be after the information of neighbours base station, according to the neighbours base station of this terminal to report receiving antenna gain in the maximum transmission power of the received signal power of this terminal, the EIRP of neighbours base station, described terminal, described neighbours base station, information such as the dual-mode antenna gain of described terminal are determined the received power of described neighbours base station to described terminal signaling.

Suppose the power of neighbours base station incoming terminal, promptly to receive the received signal power of this neighbours base station be P to this terminal RX_NBS, the EIRP of neighbours base station is P EIRP_NBS, the receiving antenna gain of neighbours base station is G RX_NBS, the maximum transmission power of terminal is P MAX_TX_SS, the receiving antenna gain of terminal is G RX_SS, the terminal transmitter antenna gain (dBi) is G TX_SS, then the neighbours base station is to the received power P of this terminal signaling RX_SSFor:

P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS+(G TX_SS-G RX_SS)

Further, as the receiving antenna gain G of terminal RX_SSEqual terminal transmitter antenna gain (dBi) G TX_SSThe time, then the neighbours base station is to the received power P of this terminal signaling RX_SSCalculating can further be reduced to:

P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS

Wherein, information such as the EIRP of neighbours base station, antenna gain, the base station can obtain from the end of the down interference source signal that detects the neighbours base station, also can adopt other method to obtain these information of this neighbours base station, for example: the base station obtains these information by backbone network to neighbours' base station requests.

If the receiving antenna gain G of terminal RX_SSWith terminal transmitter antenna gain (dBi) G TX_SSDifference, then the base station further requires this terminal receiving antenna gain of terminal to report G RX_SSWith terminal transmitter antenna gain (dBi) G TX_SSValue give the base station.If the receiving antenna gain of terminal equals the terminal transmitter antenna gain (dBi), then terminal can not report the dual-mode antenna of oneself to gain to the base station.The receiving antenna gain of base station acquiescence terminal equals the transmitter antenna gain (dBi) of terminal, if promptly terminal does not gain to the dual-mode antenna of own serving base stations report oneself, then this serving BS thinks that the dual-mode antenna of terminal gains identical.

Step S303, the base station judge the neighbours base station to the received power of terminal signaling whether greater than predetermined threshold, if greater than, determine that then this terminal is the interference source in up going route of this neighbours base station.If this neighbours base station is not more than predetermined threshold to the received power of terminal signaling, then this base station determines that this terminal is not the interference source in up going route of this neighbours base station.

The detection method of above-mentioned interference source in up going route, the interference source in up going route of this terminal for the neighbours base station can directly be judged in the base station after terminal detects down interference source signal from the neighbours base station; Also can determine that greater than predetermined threshold this terminal is the interference source in up going route of this neighbours base station to the received power of terminal signaling by judging this neighbours base station.The detection method of above-mentioned interference source in up going route need not detect at interference source in up going route and send special detection signal, does not need the outer interface-free resources of occupying volume yet, has improved the efficient of eating dishes without rice or wine, and has reduced the implementation complexity of base station and terminal simultaneously.

As shown in Figure 4, the flow chart for the detection method embodiment four of interference source in up going route of the present invention specifically may further comprise the steps:

Step S401, the base station judges by the method for embodiment one, embodiment two or embodiment three whether the terminal of serving this base station is the interference source in up going route of neighbours base station, if, then further execution in step S402; If not, determine that then terminal is not the interference source in up going route of neighbours base station.

Step S402, the base station notice is judged as the interference source in up going route of neighbours base station by this base station terminal sends the uplink interference identification signal.After the terminal of the information of utilizing base station and service terminal the to be obtained interference source in up going route that to have judged a terminal be the neighbours base station, these terminals are notified in the base station, send uplink interference identification signal, for example up compossibility message or energy pulse at the predetermined interference time slot.If the neighbours base station has received signal from this terminal at the predetermined interference time slot, then the uplink interference that oneself has been subjected to from this terminal can be judged in this neighbours base station.For the own judgement in base station is not the terminal of neighbours' base station down interference source signal, and the base station does not require that it sends the uplink interference identification signal.

The detection method of above-mentioned interference source in up going route, the base station is after having judged the terminal of interference source in up going route that certain or some terminals are the neighbours base stations, notify this or these terminal to send the uplink interference identification signal at the predetermined interference time slot, at this moment, the neighbours base station can judge whether these terminals are the interference source in up going route of this neighbours base station by the signal that detects these terminals transmissions.The detection method of above-mentioned interference source in up going route, reduced the quantity that detects the special detection signal that sends at interference source in up going route, reduced taking to interface-free resources, thereby improved the efficient of eating dishes without rice or wine, and need not calculate the received power of neighbours base station, reduce the Interference Detection complexity terminal signaling.

Determining terminal for after the interference source in up going route of neighbours base station, serving BS is further to adjusting the transmitting power and the launch time of above-mentioned terminal, to remove the interference of above-mentioned terminal to this neighbours base station.

The descending interference detection results of the terminal to report that the embodiment of the invention one, embodiment two and embodiment three all are serving BSs to be served according to this serving BS judges whether this terminal is the interference source in up going route of neighbours base station.In the embodiment of the invention five, serving BS or terminal can be with the down interference source testing results, and relevant information, as the neighbours base station at the received signal power of this terminal, the maximum transmission power of terminal, and/or the information such as dual-mode antenna gain of terminal, report the neighbours base station, judge by the neighbours base station whether terminal is the interference source in up going route of this neighbours base station, its determination methods is identical with the determination methods of serving BS among embodiment one, embodiment two or the embodiment three.Wherein, serving BS or terminal are with the down interference source testing result, and relevant information reports the method for neighbours base station to be: terminal will detect descending interference detection results earlier, and the information of being correlated with reports the serving BS of this terminal, be transmitted to the neighbours base station by serving BS; Perhaps, terminal is directly utilized chamber mouth resource, and with descending interference detection results, and relevant information reports the neighbours base station.

As shown in Figure 5, the structure chart for the detection system of embodiment of the invention interference source in up going route comprises: terminal 1 and base station 2.Terminal 1 is used to detect the down interference source signal of neighbours base station, and reports descending interference detection results, and this descending interference detection results comprises the testing result of the down interference source signal of 1 pair of neighbours base station of terminal; Base station 2 is used for the descending interference detection results that receiving terminal 1 reports, and determines that according to this descending interference detection results terminal 1 is the interference source in up going route of neighbours base station.

Wherein, terminal 1 comprises: detection module 11 is used to detect the down interference source signal of neighbours base station.

Wherein, terminal 1 also comprises: reporting module 12, be connected with detection module 11, and be used for testing result reporting base station with the down interference source signal of 11 pairs of neighbours base stations of detection module.

Wherein, base station 2 comprises: receiver module 21 as a result, are used for the descending interference detection results that receiving terminal 1 reports;

Interference source determination module 22 is used for determining that according to the descending interference detection results of receiver module 21 receptions as a result terminal 1 is the interference source in up going route of neighbours base station.

Wherein, interference source determination module 22 comprises: directly determine submodule 221, when being used for descending interference detection results and being terminal 1 and having detected the down interference source signal of neighbours base stations, determine that terminal 1 is the interference source in up going route of this neighbours base station;

Power is determined submodule 222, be used for according to received signal power from 1 pair of neighbours base station of terminal that descending interference detection results is obtained, and the EIRP of this neighbours base station, the maximum transmission power of terminal 1, the receiving antenna gain of this neighbours base station and the dual-mode antenna gain of terminal 1, determine the received power of this neighbours base station to terminal 1 signal, and judge this neighbours base station to the received power of terminal 1 signal whether greater than predetermined threshold, if greater than, determine that then terminal 1 is the interference source in up going route of this neighbours base station.

Wherein, base station 2 also comprises: notification module 23, the terminal 1 of the interference source in up going route that is used to notify disturbed source determination module 22 to be defined as the neighbours base station sends the uplink interference identification signal.

Wherein, terminal 1 also comprises: signal transmitting module 13, be used for after the notice that receives base station 2, and send the uplink interference identification signal at the predetermined interference time slot.

The detection system of above-mentioned interference source in up going route, base station 2 can judge that directly this terminal 1 is the interference source in up going route of neighbours base station after terminal 1 detects down interference source signal from the neighbours base station; Also can determine the interference source in up going route that this terminal 1 is this neighbours base station to the received power of terminal 1 signal greater than predetermined threshold by judging this neighbours base station.The detection system of above-mentioned interference source in up going route need not detect at interference source in up going route and send special detection signal, does not need the outer interface-free resources of occupying volume yet, has improved the efficient of eating dishes without rice or wine, and has reduced the implementation complexity of base station 1 and terminal 2 simultaneously.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (13)

1. the detection method of an interference source in up going route is characterized in that, may further comprise the steps:
The descending interference detection results that the base station receiving terminal reports, described descending interference detection results are the testing result of described terminal to the down interference source signal of neighbours base station;
Described base station determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station;
Described base station determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station, specifically comprises:
The received power of described neighbours base station to described terminal signaling determined according to described descending interference detection results in described base station, and judge that whether described received power is greater than predetermined threshold, if greater than, then described base station determines that described terminal is the interference source in up going route of described neighbours base station;
The received power of described neighbours base station to described terminal signaling determined according to described descending interference detection results in described base station, specifically comprises:
Described base station is according to the received signal power of the described terminal of obtaining from described descending interference detection results to described neighbours base station, and the effective isotropic radiated power EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling;
If the gain of the dual-mode antenna of described terminal is identical, then described base station is according to the received signal power of the described terminal of obtaining from described descending interference detection results to described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal and the receiving antenna gain of described neighbours base station are determined the received power of described neighbours base station to described terminal signaling.
2. the detection method of interference source in up going route according to claim 1 is characterized in that described definite neighbours base station specifically comprises the received power of described terminal signaling:
When described terminal is P to the received signal power of described neighbours base station RX_NBS, the EIRP of described neighbours base station is P EIRP_NBS, the receiving antenna gain of described neighbours base station is G RX_NBS, the maximum transmission power of described terminal is P MAX_TX_SS, the receiving antenna gain of described terminal is G RX_SS, the transmitter antenna gain (dBi) of described terminal is G TX_SSThe time, described neighbours base station is to the received power P of described terminal signaling RX_SSFor:
P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS+(G TX_SS-G RX_SS)。
3. as the detection method of interference source in up going route as described in the claim 2, it is characterized in that when the dual-mode antenna of described terminal gains when identical, described neighbours base station is to the received power P of described terminal signaling RX_SSFor:
P RX_SS=P MAX_TX_SS+G RX_NBS-P EIRP_NBS+P RX_NBS
4. the detection method of interference source in up going route according to claim 1, it is characterized in that, after described base station determines that described terminal is the interference source in up going route of described neighbours base station, also comprise: described base station notice is judged as the interference source in up going route of described neighbours base station by described base station terminal sends the uplink interference identification signal.
5. the detection method of interference source in up going route according to claim 1 is characterized in that described base station specifically comprises: the neighbours base station of the serving BS of described terminal or described terminal.
6. the detection method of interference source in up going route according to claim 1 is characterized in that, described descending interference detection results specifically comprises the sign ID of described neighbours base station and the described terminal received signal power to described neighbours base station.
7. the detection method of interference source in up going route according to claim 1, it is characterized in that described neighbours base station comprises the received power of described terminal signaling: described neighbours base station is to the received power of described terminal with the signal of maximum transmission power emission.
8. the detection system of an interference source in up going route is characterized in that, comprising:
Terminal is used to detect the down interference source signal of neighbours base station, and reports descending interference detection results, and described descending interference detection results is the testing result of described terminal to the down interference source signal of neighbours base station;
The base station is used to receive the descending interference detection results of described terminal to report, and determines that according to described descending interference detection results described terminal is the interference source in up going route of described neighbours base station;
Described base station comprises:
Receiver module as a result is used to receive the descending interference detection results of described terminal to report;
The interference source determination module is used for determining that according to the descending interference detection results that described receiver module as a result receives described terminal is the interference source in up going route of described neighbours base station;
Described interference source determination module comprises:
Directly determine submodule, being used in described descending interference detection results is described terminal when having detected the down interference source signal of described neighbours base station, determines that described terminal is the interference source in up going route of described neighbours base station;
Power is determined submodule, be used for according to the received signal power of the described terminal of obtaining from described descending interference detection results described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling, and judge described neighbours base station to the received power of described terminal signaling whether greater than predetermined threshold, if greater than, determine that then described terminal is the interference source in up going route of described neighbours base station.
9. as the detection system of interference source in up going route as described in the claim 8, it is characterized in that described terminal comprises:
Detection module is used to detect the down interference source signal of neighbours base station;
Reporting module is connected with described detection module, is used for described detection module is reported described base station to the down interference source signal detecting result of described neighbours base station.
10. as the detection system of interference source in up going route as described in the claim 8, it is characterized in that, described base station also comprises: notification module is used to notify the terminal transmission uplink interference identification signal that is defined as the interference source in up going route of described neighbours base station by described interference source determination module.
11. the detection system as interference source in up going route as described in the claim 10 is characterized in that described terminal also comprises: signal transmitting module, be used for after receiving the notice of described base station, send the uplink interference identification signal.
12. a base station is characterized in that, comprising:
Receiver module is used for the descending interference detection results that receiving terminal reports as a result;
The interference source determination module is used for determining that according to the descending interference detection results that described receiver module as a result receives described terminal is the interference source in up going route of described neighbours base station;
Described interference source determination module comprises:
Directly determine submodule, being used in described descending interference detection results is described terminal when having detected the down interference source signal of described neighbours base station, determines that described terminal is the interference source in up going route of described neighbours base station;
Power is determined submodule, be used for according to the received signal power of the described terminal of obtaining from described descending interference detection results described neighbours base station, and the EIRP of described neighbours base station, the maximum transmission power of described terminal, the receiving antenna gain of described neighbours base station and the dual-mode antenna gain of described terminal, determine the received power of described neighbours base station to described terminal signaling, and judge described neighbours base station to the received power of described terminal signaling whether greater than predetermined threshold, if greater than, determine that then described terminal is the interference source in up going route of described neighbours base station.
13. as base station as described in the claim 12, it is characterized in that, also comprise: notification module is used to notify the terminal that is defined as the interference source in up going route of described neighbours base station by described interference source determination module to send the uplink interference identification signal.
CN2007101881764A 2007-10-23 2007-11-13 Method, system and device for uplink interference source detection CN101420716B (en)

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