CN103067964B

CN103067964B - Coordination method and system for predicting interference

Info

Publication number: CN103067964B
Application number: CN201210573108.0A
Authority: CN
Inventors: 王江; 朱文升; 徐景; 滕勇; 卡里·霍内曼
Original assignee: Shanghai Research Center for Wireless Communications
Current assignee: Shanghai Research Center for Wireless Communications
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2017-02-22
Anticipated expiration: 2032-12-25
Also published as: CN103067964A

Abstract

The invention provides a coordination method and a system for predicting interference which are applied to a first base station communicating through a mobile relay and mobile equipment, and a system composed of a second base station which is switched over with the first base station along a mobile relaying moving track. Before the first base station is switched over with the second base station, the first base station or the second base station first obtains a first signal to interference plus noise power ratio (SINR) from the mobile relaying to the mobile equipment, power measuring parameters of the mobile equipment, and a received power measurement report of sending power of a current sent reference signal of the first base station; a second SINR from the second base station to the mobile equipment is predicted based on the received power measurement report; and when the difference value between the first SINR and the second SINR is larger than a preset threshold value, and sending power of a sent reference signal of the second base station is determined after the second base station is switched over. Therefore, the interference from the second base station to the mobile equipment is lowered.

Description

The coordination approach of predicted interference and system

Technical field

The present invention relates to a kind of coordination approach of predicted interference and system.

Background technology

With the operation of rapid, the people for taking this vehicles provide wireless communication, it has also become The focus of global concern.At present, conventional way is, installs mobile relay in a vehicle, and mobile relay is new as one The node introducing, with respect to base station can equivalent one-tenth mobile device, meanwhile, with respect to the mobile device in the vehicles, mobile Relaying equivalent one-tenth base station again, therefore, relaying and home cell user can be with the frequency spectrum resources of sharing base.Now, if base station Direct link to relaying（Direct link）And it is relayed to employing between the access link (Access link) of mobile device When multiplexing factor is 1, the descending interference that the mobile device in rapid receives from base station cannot be ignored.

In order to reduce the mobile device in the vehicles by the descending interference from base station, described base station is to described movement The Signal to Interference plus Noise Ratio of equipment can not be more than the Signal to Interference plus Noise Ratio to described mobile device for the mobile relay.

The current practice is that, when described mobile device is after mobile relay with base station communication, described base station is passed through to shifting The power measurement of dynamic equipment, to determine whether to reduce the transmit power of downlink reference signal.However, coming for rapid Say, because its speed of service is fast, current serving BS may not yet record the power measurement parameter of described mobile device, described Mobile device just leaves the region that this base station is serviced, so, although allow for mobile device can with base station communication, due to The power disturbance of downlink reference signal, described mobile device normally cannot be communicated with base station by mobile relay.Therefore Need existing disturbance coordination method is improved.

Content of the invention

The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of coordination approach of predicted interference And system, whether the transmit power sending reference signal for solving unpredictable base station in prior art be pointed to the vehicles The problem that interior mobile device interferes.

For achieving the above object and other related purposes, the present invention provides a kind of coordination approach of predicted interference, is applied to The first base station being communicated with mobile device by mobile relay, and along described mobile relay running orbit and will be with The system that the second base station that described first base station switches over is constituted, the coordination approach of described predicted interference at least includes：1） Before described first base station is switched over the second base station, described second base station obtains the reception work(from described first base station Rate measurement report, wherein, described receiving power measurement report at least includes：Described mobile relay to described mobile device first The transmit power of Signal to Interference plus Noise Ratio, the power measurement parameter of described mobile device and the currently transmitted reference signal of described first base station； And based on the prediction of described receiving power measurement report with current transmit power send during reference signal described in the second base station to institute State the second Signal to Interference plus Noise Ratio of mobile device；2）It is more than predetermined threshold value in the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio When, described second base station reduces the transmit power sending reference signal after handover.

Preferably, the mode that described second base station obtains the receiving power measurement report from described first base station includes： 1-1）The mobile relay described in power measurement parameter determination based on acquired described mobile device for the described mobile relay is to described First Signal to Interference plus Noise Ratio of mobile device, and by the power measurement parameter of described mobile device and described first Signal to Interference plus Noise Ratio send to Described first base station；1-2）Described first base station by the power measurement parameter of acquired described mobile device, described first letter The transmit power of dry when currently transmitted reference signal of making an uproar generates described receiving power measurement report, and sends to described the Two base stations.

Preferably, described second base station is predicted based on receiving power measurement report and is sent with current transmit power The mode of the second Signal to Interference plus Noise Ratio to described mobile device for the second base station described in during reference signal includes：Using formula：To determine described second Signal to Interference plus Noise Ratio SINR_p；

Wherein, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUEFor The carrier receiver signal strength of described mobile device, P_{Tx_DeNB2}Transmission work(for the currently transmitted reference signal in described second base station Rate, PL₂Send the path loss estimated value of reference signal extremely described mobile device, RSRP for described second base-station transmitting-power_{DeNB1_RUE} The receiving power of the currently received reference signal from described first base station of described mobile device.

Preferably, described second base station reduces after handover and sends the mode of transmit power of reference signal and include：Institute When stating the difference of the first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio and being more than predetermined threshold value, make an uproar according to the described first letter is dry in described second base station To determine that the transmission after switching is joined than with the difference of the second Signal to Interference plus Noise Ratio with the corresponding relation of the transmit power of sent reference signal Examine the transmit power of signal；And after handover, with determined by transmit power send reference signal.

Preferably, described step 2）Also include：Described second base station judge the current transmit power in described second base station and Determined by switch after transmit power difference whether more than the difference of current transmit power and default minimum transmit power, if More than the difference of current transmit power and default minimum transmit power, then send described after handover according to minimum transmit power Reference signal；If conversely, no more than current transmit power with default minimum transmit power difference, after handover according to institute The transmit power determining sends reference signal.

Based on above-mentioned purpose, the present invention also provides a kind of coordination system of predicted interference, and it at least includes：By in movement Continue the first base station being communicated with mobile device, and along described mobile relay running orbit and will be with described first base The second base station that station switches over；

Described second base station includes：Second Signal to Interference plus Noise Ratio processing unit, for entering with the second base station in described first base station Before row switching, obtain the receiving power measurement report from described first base station, wherein, described receiving power measurement report is extremely Few inclusion：Described mobile relay to the first Signal to Interference plus Noise Ratio of described mobile device, the power measurement parameter of described mobile device and The transmit power of the currently transmitted reference signal of described first base station；And predicted based on described receiving power measurement report with current Transmit power sends the second Signal to Interference plus Noise Ratio to described mobile device for second base station described in during reference signal；Second Power Processing list Unit, for receiving described second Signal to Interference plus Noise Ratio and first Signal to Interference plus Noise Ratio of described second Signal to Interference plus Noise Ratio processing unit, and described When the difference of the first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described second base station is controlled to reduce transmission after handover The transmit power of reference signal.

Preferably, described coordination system also includes：Positioned at the first acquisition processing unit of described mobile relay, for being based on The mobile relay described in power measurement parameter determination of acquired described mobile device believes dry making an uproar to the first of described mobile device Than, and the power measurement parameter of described mobile device and described first Signal to Interference plus Noise Ratio are sent to described first base station；Positioned at institute State the second acquisition processing unit of first base station, for by the power of the described mobile device acquired in described first acquisition unit The transmit power of measurement parameter, described first Signal to Interference plus Noise Ratio and currently transmitted reference signal generates described receiving power measurement Report, and send to described second Signal to Interference plus Noise Ratio processing unit.

Preferably, described second Signal to Interference plus Noise Ratio processing unit is additionally operable to utilize formula：

To predict described second Signal to Interference plus Noise Ratio SINR_p；Wherein, RSRP_{RN_RUE}For the currently transmitted reference signal of described first base station Transmit power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, P_{Tx_DeNB2}For described second base station The transmit power of currently transmitted reference signal, PL₂Send reference signal to described movement for described second base-station transmitting-power to set Standby path loss estimated value, RSRP_{DeNB1_RUE}The currently received reference signal from described first base station of described mobile device Receiving power.

Preferably, described second power processing unit is additionally operable to the difference in described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio During more than predetermined threshold value, difference and described second base station according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio send with reference to letter Number transmit power corresponding relation come to determine after switching described second base station send reference signal transmit power；And in switching Afterwards, with determined by transmit power send reference signal.

Preferably, described second power processing unit is additionally operable to judge the current transmit power in described second base station and institute really Whether the difference of the transmit power after fixed switching is more than the difference of current transmit power and default minimum transmit power, if being more than Current transmit power and the difference of default minimum transmit power, then control described second base station to send according to minimum after handover Power sends described reference signal；If conversely, no more than current transmit power and the difference of default minimum transmit power, controlling Make described second base station after handover according to determined by transmit power send reference signal.

Based on above-mentioned purpose, the present invention also provides a kind of coordination approach of predicted interference, be applied to by mobile relay with The first base station that mobile device is communicated, and enter will along described mobile relay running orbit and with described first base station The system that second base station of row switching is constituted, it at least includes：a）Switch over it in described first base station and the second base station Before, described first base station obtains the power measurement parameter of described mobile device and described mobile relay to described mobile device First Signal to Interference plus Noise Ratio；And the transmit power based on described power measurement parameter and the currently transmitted reference signal of described first base station is pre- Survey with current transmit power send during reference signal described in the second Signal to Interference plus Noise Ratio to described mobile device for second base station；b）? When the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described first base station calculates described second base station Send the transmit power of reference signal after handover, and acquired transmit power is sent to described second base station, for institute State the second base station and send reference signal according to acquired transmit power after handover.

Preferably, described first base station obtains the power measurement parameter of described mobile device, described mobile relay to described The mode of the first Signal to Interference plus Noise Ratio of mobile device includes：The power based on acquired described mobile device for the described mobile relay is surveyed First Signal to Interference plus Noise Ratio to described mobile device for the mobile relay described in amount parameter determination, and the power measurement by described mobile device Parameter and described first Signal to Interference plus Noise Ratio send to described first base station.

Preferably, described step a）Also include：Described first base station also obtains the currently transmitted reference in described second base station letter Number transmit power, and utilize formula：To determine State the second Signal to Interference plus Noise Ratio SINR_p.Wherein, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, P_{Tx_DeNB2}Currently transmitted for described second base station The transmit power of reference signal, PL₂Send reference signal for described second base-station transmitting-power to the path loss of described mobile device Estimated value, RSRP_{DeNB1_RUE}The reception work(of the currently received reference signal from described first base station of described mobile device Rate.

Preferably, described first base station calculates described second base station and sends transmit power during reference signal after handover Mode includes：Difference and described second base station according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio send sending out of reference signal Send the corresponding relation of the power transmit power to determine described second base station transmission reference signal after handover.

Preferably, described step b）Also include：Judge the current transmit power in described second base station and determined by switch Whether the difference of transmit power afterwards is more than current transmit power with the difference of default minimum transmit power however, it is determined that being more than described During the difference of the current transmit power in the second base station and default minimum transmit power, described minimum is sent work(by described first base station Rate sends to described second base station, so that described second base station to send reference signal according to minimum transmit power after handover； Conversely, by determined by described second base station switching after transmit power be supplied to described second base station.

Described first base station includes：First Signal to Interference plus Noise Ratio processing unit, for entering with the second base station in described first base station Before row switching, obtain the power measurement parameter of described mobile device and described mobile relay to described mobile device first Signal to Interference plus Noise Ratio；And based on described power measurement parameter and the currently transmitted reference signal of described first base station transmit power predict with Current transmit power sends the second Signal to Interference plus Noise Ratio to described mobile device for second base station described in during reference signal；First power Processing unit, for receiving described second Signal to Interference plus Noise Ratio and first Signal to Interference plus Noise Ratio of described first Signal to Interference plus Noise Ratio processing unit, and When the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, calculates described second base station and send out after handover Send the transmit power of reference signal, and acquired transmit power is sent to described second base station, for described second base station Send reference signal according to acquired transmit power after handover.

Preferably, described coordination system also includes：Positioned at the 3rd acquisition processing unit of described mobile relay, for being based on The mobile relay described in power measurement parameter determination of acquired described mobile device believes dry making an uproar to the first of described mobile device Than, and the power measurement parameter of described mobile device and described first Signal to Interference plus Noise Ratio are sent to described first Signal to Interference plus Noise Ratio process Unit.

Preferably, described first Signal to Interference plus Noise Ratio processing unit is additionally operable to obtain the currently transmitted reference signal in described second base station Transmit power；And utilize formula：Described to determine Second Signal to Interference plus Noise Ratio SINR_p；Wherein, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, P_{Tx_DeNB2}Currently transmitted for described second base station The transmit power of reference signal, PL₂Send reference signal for described second base-station transmitting-power to the path loss of described mobile device Estimated value, RSRP_{DeNB1_RUE}The reception work(of the currently received reference signal from described first base station of described mobile device Rate.

Preferably, described first power processing unit be additionally operable to according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio it The corresponding relation of the transmit power that difference sends reference signal with described second base station to determine described second base station after handover Send the transmit power of reference signal.

Preferably, described first power processing unit is additionally operable to judge the current transmit power in described second base station and institute really The difference of the transmit power after fixed switching whether more than current transmit power and default minimum transmit power difference however, it is determined that During the difference of the transmit power current more than described second base station and default minimum transmit power, described first base station by described Little transmit power sends to described second base station, so that described second base station to send reference signal with minimum transmit power；Instead It, transmit power determined by general is supplied to described second base station.

As described above, the coordination approach of the predicted interference of the present invention and system, have the advantages that：By first Before base station and the second base station switch over, power measurement parameter according to acquired mobile device and with described movement The transmit power of the first base station of equipment communication, to estimate the transmit power of the second base station that will switch, can switch in base station Determine that described second base station sends the transmit power of reference signal, after base station switches over, described second base station is with true before Transmit power after fixed sends reference signal, so can reduce the second base station to the interference of mobile device so that base station switches Afterwards, mobile device can carry out proper communication by mobile relay and described second base station；In addition, using rapid The fixing feature in track, default path loss estimated value, and the Signal to Interference plus Noise Ratio of the second base station is estimated using formula 1, solve existing It is necessary to just can determine that the shortcoming of path loss estimated value after described mobile device and the second base station are set up and communicated in technology；Additionally, When determined by switch after transmit power too small when, in order to ensure the basic service demand of described second base station return link, Described second base station will send reference signal with minimum transmit power.

Brief description

The flow chart that Fig. 1 is shown as a kind of embodiment of the coordination approach of the predicted interference of the present invention.

Fig. 2 is shown as a kind of structural representation of embodiment of the coordination system of the predicted interference of the present invention.

The flow chart that Fig. 3 is shown as another embodiment of the coordination approach of the predicted interference of the present invention.

Fig. 4 is shown as the structural representation of another embodiment of coordination system of the predicted interference of the present invention.

Component label instructions

Specific embodiment

Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by addition different concrete realities The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from Carry out various modifications and changes under the spirit of the present invention.

As shown in figure 1, the present invention provides a kind of coordination approach of predicted interference.Described coordination approach is applied to by movement Relay the first base station that communicated with mobile device, and along described mobile relay running orbit and will be with described first In the system that the second base station that base station switches over is constituted.Wherein, mobile relay may be mounted at the traffic work such as train, subway On tool, and run with the vehicles.Described mobile device is located in the described vehicles, and passes through described mobile relay and institute State first base station communication, wherein, described mobile device includes：2G mobile phone, 3G mobile etc..Described first base station and the second base station are Described mobile relay running orbit base station on the way, when described mobile relay is located in described first base station institute coverage, Described mobile device is communicated with described first base station by described mobile relay, when described mobile relay run to first base station with During the intersection region of the second base station all coverings, described first base station is switched over the second base station, so that described mobile device continues Continue and communicated with the second base station.

In step sl, before described first base station is switched over the second base station, described second base station obtains and is derived from The receiving power measurement report of described first base station, wherein, described receiving power measurement report at least includes：Described mobile relay Currently transmitted to the first Signal to Interference plus Noise Ratio of described mobile device, the power measurement parameter of described mobile device and described first base station The transmit power of reference signal；And reference signal is sent with current transmit power based on the prediction of described receiving power measurement report Second Signal to Interference plus Noise Ratio to described mobile device for Shi Suoshu second base station.

Specifically, before described first base station and the second base station switch over, described first base station is from communicating Obtain the power measurement parameter of described mobile relay and described mobile device at mobile relay, and be based on described power measurement parameter To determine described first Signal to Interference plus Noise Ratio, then by described first Signal to Interference plus Noise Ratio, the power measurement parameter of described mobile device and described The transmit power of the currently transmitted reference signal of first base station generates receiving power measurement report according to default form, and will be described Receiving power measurement report is sent to described second base station by interface；Described second base station measures report according to described receiving power Each value in announcement is determining itself the second Signal to Interference plus Noise Ratio to described mobile device.Wherein, the power measurement of described mobile device Parameter includes but is not limited to：Described mobile device receive receiving power during reference signal A that described first base station sent, Described mobile device receives receiving power and described mobile device during reference signal B that described mobile relay sent In receiver signal field intensity etc..

In the present embodiment, described second base station obtains the mode bag of the receiving power measurement report from described first base station Include：Step S11 and step S12（It is unillustrated）.

In step s 11, the power measurement parameter determination institute based on acquired described mobile device for the described mobile relay State the first Signal to Interference plus Noise Ratio to described mobile device for the mobile relay, and by the power measurement parameter of described mobile device and described One Signal to Interference plus Noise Ratio sends to described first base station.

Specifically, described mobile device by receive described first base station sent reference signal A when receiving power, connect Receive receiving power during reference signal B that described mobile relay sent and the receiver signal field in described mobile device Strong constant power measurement parameter is sent to described mobile relay, and described mobile relay calculates itself according to described power measurement parameter The first Signal to Interference plus Noise Ratio to described mobile device, and by acquired power measurement parameter and described first Signal to Interference plus Noise Ratio send to Described first base station.

In step s 12, described first base station by the power measurement parameter of acquired described mobile device, described first The transmit power of Signal to Interference plus Noise Ratio and currently transmitted reference signal generates described receiving power measurement report, and sends to described Second base station.

Specifically, the power measurement parameter of the described mobile device that described mobile relay is sent by described first base station, institute State the first Signal to Interference plus Noise Ratio and the transmit power of currently transmitted reference signal generates receiving power measurement according to default form Report, and described receiving power measurement report is supplied to by described second base station by the X2 interface with described second base station.Its In, preset format can be XML format or self-defining data packet format etc..

Then, described second base station is predicted based on described receiving power measurement report and is sent reference with current transmit power Second Signal to Interference plus Noise Ratio to described mobile device for second base station described in during signal.

Specifically, described second base station extracts described power measurement parameter and described from described receiving power measurement report The transmit power of the currently transmitted reference signal of first base station；And to calculate first base station to described mobile device according to above-mentioned numerical value The 3rd Signal to Interference plus Noise Ratio, and described 3rd Signal to Interference plus Noise Ratio is computed weighted, to estimate described second Signal to Interference plus Noise Ratio.

Preferably, described second base station utilizes formula 1：

To predict described second Signal to Interference plus Noise Ratio SINR_p.Wherein, RSRP_{RN_RUE}For described first base station currently transmitted reference letter Number transmit power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, P_{Tx_DeNB2}For described second The transmit power of the currently transmitted reference signal in base station, PL₂Send reference signal for described second base station to described mobile device Path loss estimated value, RSRP_{DeNB1_RUE}The reception of the currently received reference signal from described first base station of described mobile device Power.

Wherein, described path loss estimated value PL₂For default fixed value, also can be true according to the running orbit of described mobile relay Fixed described second base station sends reference signal to path loss estimated value PL of described mobile device₂.

Thus, if described second base station can estimate exactly sends reference signal according to current transmit power, its The second Signal to Interference plus Noise Ratio to described mobile device.

In step s 2, when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described the Diyl station reduces the transmit power sending reference signal after handover；And after handover, with determined by transmit power send ginseng Examine signal.Wherein, described threshold value is preferably 1.

Specifically, whether described second base station judges the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio more than default Threshold value, when more than described threshold value, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described second base station, and is calculated using formula 1 Go out the transmit power after switching；When no more than described threshold value, described second base station is after handover still with current transmit power Send reference signal.

For example, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described second base station, and formula 1 is transformed into formula 2：Wherein, SINR_TFor the first Signal to Interference plus Noise Ratio, P_{Tx_DeNB2}' for described second base station switching after transmit power, RSRP_{RN_RUE}For the currently transmitted reference signal of described first base station Transmit power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, PL₂For described second base station Transmit power sends the path loss estimated value of reference signal extremely described mobile device, RSRP_{DeNB1_RUE}Described mobile device is currently connect The receiving power of the reference signal from described first base station received.

Preferably, when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described second base The corresponding relation of the difference stood according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio and the transmit power of sent reference signal To determine the transmit power of the transmission reference signal after switching.Wherein, described corresponding relation can be linear relationship.

For example, described second base station utilizes formula 3：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-K(SINR_T-SINR_P), after determining switching Send the transmit power of reference signal.Wherein, K is weights, P_{Tx_DeNB2}' for described second base station switching after transmit power, P_{Tx_DeNB2}For the current transmit power in described second base station, SINR_pFor described second Signal to Interference plus Noise Ratio, SINR_TMake an uproar for the first letter is dry Than.

It is further preferable that described step S2 also includes：Described second base station judges its current transmit power and is determined Switching after transmit power difference whether more than the difference of current transmit power and default minimum transmit power, if more than working as Front transmit power and the difference of default minimum transmit power, then send described reference letter according to minimum transmit power after handover Number；If conversely, no more than current transmit power with default minimum transmit power difference, after handover according to determined by Transmit power sends reference signal.

In the present embodiment, described second base station utilizes formula 4：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-min{K(SINR_T-SINR_P), (P_{Tx_DeNB2}-P_Tmin) come to determine after handover send reference signal transmit power；Wherein, P_TminFor minimum transmit power.

Embodiment two

As shown in Fig. 2 the present invention also provides a kind of coordination system of predicted interference.Described coordination system 1 includes：By moving Disorder of internal organs is continued 2 first base stations 11 being communicated with mobile device 3, and along described mobile relay 2 running orbit and will be with institute State the second base station 12 that first base station 11 switches over.Wherein, described mobile relay 2 may be mounted at the traffic such as train, subway On instrument, and run with the vehicles.Described mobile device 3 is located in the described vehicles, and passes through described mobile relay 2 Communicate with described first base station 11, wherein, described mobile device 3 includes：2G mobile phone, 3G mobile etc..Described first base station 11 He Second base station 12 is described mobile relay 2 running orbit base station on the way, when described mobile relay 2 is located at described first base station 11 When in institute's coverage, described mobile device 3 is communicated with described first base station 11 by described mobile relay 2, when described movement Relaying 2 run to first base station 11 and the second base station 12 all the intersection region of covering when, described first base station 11 and the second base station 12 switch over, so that described mobile device 3 continues to be communicated with the second base station 12.

Described second base station 12 includes：Second Signal to Interference plus Noise Ratio processing unit 121, the second power processing unit 122.

Described second Signal to Interference plus Noise Ratio processing unit 121 is used for switching over it in described first base station 11 and the second base station 12 Before, described second base station 12 obtains the receiving power measurement report from described first base station 11, and wherein, described receiving power is surveyed Amount report at least includes：First Signal to Interference plus Noise Ratio to described mobile device 3 for the described mobile relay 2, the power of described mobile device 3 Measurement parameter and the transmit power of the currently transmitted reference signal of described first base station 11；And it is based on described receiving power measurement report Prediction with current transmit power send during reference signal described in the second base station 12 is dry to the second letter of described mobile device 3 makes an uproar Than.

Specifically, before described first base station 11 and the second base station 12 switch over, described second Signal to Interference plus Noise Ratio is processed Unit 121 obtains the power measurement parameter of described mobile relay 2 and described mobile device 3 at the mobile relay 2 communicating, And described first Signal to Interference plus Noise Ratio is determined based on described power measurement parameter, more described first Signal to Interference plus Noise Ratio, described movement are set Standby 3 power measurement parameter and the transmit power of the currently transmitted reference signal of described first base station 11 generate according to default form Receiving power measurement report, and it is single that described receiving power measurement report is sent to described second Signal to Interference plus Noise Ratio process by interface Unit 121；According to each value in described receiving power measurement report, described second Signal to Interference plus Noise Ratio processing unit 121 determines that itself is right Second Signal to Interference plus Noise Ratio of described mobile device 3.Wherein, the power measurement parameter of described mobile device 3 includes but is not limited to：Described Mobile device 3 receives receiving power during reference signal A that described first base station 11 sent, described mobile device 3 receives Receiving power during reference signal B being sent to described mobile relay 2 and the receiver signal in described mobile device 3 Field intensity etc..

In the present embodiment, described coordination system 1 also includes：The first acquisition processing unit positioned at described mobile relay 2（Not Give diagram）, be located at described first base station 11 second acquisition processing unit（It is unillustrated）.

Described first obtains processing unit is used for the power measurement parameter determination institute based on acquired described mobile device 3 State the first Signal to Interference plus Noise Ratio to described mobile device 3 for the mobile relay 2, and by the power measurement parameter of described mobile device 3 and institute State the first Signal to Interference plus Noise Ratio to send to described first base station 11.

Specifically, reception work(during reference signal A that the described first base station 11 of reception is sent by described mobile device 3 Receiving power during reference signal B that rate, the described mobile relay 2 of reception are sent and the receiver in described mobile device 3 Signal strength constant power measurement parameter is sent to described first acquisition processing unit, and described mobile relay 2 is surveyed according to described power Amount parameter calculating itself the first Signal to Interference plus Noise Ratio to described mobile device 3, and by acquired power measurement parameter and described First Signal to Interference plus Noise Ratio sends to described first base station 11.

Described second obtain processing unit be used for by the power measurement parameter of acquired described mobile device 3, described the The transmit power of one Signal to Interference plus Noise Ratio and currently transmitted reference signal generates described receiving power measurement report, and sends to institute State the second Signal to Interference plus Noise Ratio processing unit 121.

Specifically, the power of the described mobile device 3 that described mobile relay 2 is sent by described second acquisition processing unit is surveyed The transmit power of amount parameter, described first Signal to Interference plus Noise Ratio and currently transmitted reference signal generates according to default form and receives Power Measurement Report, and by the X2 interface with described second base station 12, described receiving power measurement report is supplied to described Two Signal to Interference plus Noise Ratio processing units 121.Wherein, preset format can be XML format or self-defining data packet format Deng.

Then, described second Signal to Interference plus Noise Ratio processing unit 121 determines described second based on described receiving power measurement report Second Signal to Interference plus Noise Ratio to described mobile device 3 for the base station 12.

Specifically, described second Signal to Interference plus Noise Ratio processing unit 121 extracts from described receiving power measurement report and is recorded Power measurement parameter and the currently transmitted reference signal of described first base station 11 transmit power；And to calculate according to above-mentioned numerical value 3rd Signal to Interference plus Noise Ratio to described mobile device 3 for the first base station 11, and described 3rd Signal to Interference plus Noise Ratio is computed weighted, to estimate Calculate described second Signal to Interference plus Noise Ratio.

Preferably, described second Signal to Interference plus Noise Ratio processes and is singly additionally operable to using formula 1：

To predict described second Signal to Interference plus Noise Ratio SINR_p.Wherein, RSRP_{RN_RUE}For the currently transmitted reference signal of described first base station 11 Transmit power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device 3, P_{Tx_DeNB2}For described second The transmit power of the currently transmitted reference signal in base station 12, PL₂Send reference signal to described movement for described second base station 12 to set Standby 3 path loss estimated value, RSRP_{DeNB1_RUE}The currently received reference letter from described first base station 11 of described mobile device 3 Number receiving power.

Wherein, described path loss estimated value PL₂For default fixed value, also can be according to the running orbit of described mobile relay 2 Determine that described second base station 12 sends reference signal to path loss estimated value PL of described mobile device 3₂.

Thus, if described second base station 12 can estimate exactly sends reference signal according to current transmit power, Its second Signal to Interference plus Noise Ratio to described mobile device 3.

Described second power processing unit 122 is used for receiving described the second of described second Signal to Interference plus Noise Ratio processing unit 121 Signal to Interference plus Noise Ratio and the first Signal to Interference plus Noise Ratio, and when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, Described second base station 12 is controlled to reduce the transmit power sending reference signal after handover；So that described second base station is after handover According to determined by transmit power send reference signal.Wherein, described threshold value is preferably 1.

Specifically, described second power processing unit 122 judges the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio Whether it is more than predetermined threshold value, when more than described threshold value, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described second base station 12, And the transmit power after switching is calculated using formula 1；When no more than described threshold value, control described second base station 12 in switching Still reference signal is sent with current transmit power afterwards.

For example, the first letter that described second Signal to Interference plus Noise Ratio processing unit 121 is obtained by described second power processing unit 122 Dry ratio of making an uproar substitutes into formula 1, and formula 1 is transformed into formula 2：

Wherein, SINR_TFor the first Signal to Interference plus Noise Ratio, P_{Tx_DeNB2}' for the transmit power after the switching of described second base station 12, RSRP_{RN_RUE} For the transmit power of the currently transmitted reference signal of described first base station 11, CarrierRSSI_RUECarrier wave for described mobile device 3 Receiver signal field intensity, PL₂The path loss sending reference signal extremely described mobile device 3 for described second base station 12 transmit power is estimated Evaluation, RSRP_{DeNB1_RUE}The reception work(of the currently received reference signal from described first base station 11 of described mobile device 3 Rate.

Preferably, described second power processing unit 122 is additionally operable in described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio Difference be more than predetermined threshold value when, the difference according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is sent with described second base station 12 The corresponding relation of the transmit power of reference signal sends the transmit power of reference signal determining described second base station 12 after switching. Wherein, described corresponding relation can be linear relationship.

For example, described second power processing unit 122 utilizes formula 3：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-K(SINR_T-SINR_P), To determine the transmit power sending reference signal after switching.Wherein, K is weights, P_{Tx_DeNB2}' it is after described second base station 12 switches Transmit power, P_{Tx_DeNB2}For the current transmit power in described second base station 12, SINR_pFor described second Signal to Interference plus Noise Ratio, SINR_T For the first Signal to Interference plus Noise Ratio.

As a kind of preferred version, described second power processing unit 122 is additionally operable to judge that described second base station 12 is current Transmit power and determined by switch after the difference of transmit power whether minimum send out with default more than current transmit power Send the difference of power, if more than the difference of current transmit power and default minimum transmit power, controlling described second base station 12 Send described reference signal according to minimum transmit power after handover；If conversely, no more than current transmit power with default The difference of minimum transmit power, then control described second base station 12 after handover according to determined by transmit power send with reference to letter Number.

In the present embodiment, described second power processing unit 122 utilizes formula 4：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-min{K (SINR_T-SINR_P),(P_{Tx_DeNB2}-P_Tmin) come to determine after handover send reference signal transmit power；Wherein, P_TminFor Little transmit power.

Embodiment three

As shown in figure 3, the present invention also provides a kind of coordination approach of predicted interference.Described coordination approach is applied to by moving Disorder of internal organs is continued the first base station being communicated with mobile device, and along described mobile relay running orbit and will be with described In the system that the second base station that one base station switches over is constituted.Wherein, described mobile relay, mobile device, first base station and Second base station, as described in embodiment one, will not be described in detail herein.

In step slo, before described first base station is switched over the second base station, described first base station obtains described The power measurement parameter of mobile device and described mobile relay the first Signal to Interference plus Noise Ratio to described mobile device；And based on described The transmit power prediction of power measurement parameter and the currently transmitted reference signal of described first base station is sent with current transmit power Second Signal to Interference plus Noise Ratio to described mobile device for second base station described in during reference signal.Wherein, the power of described mobile device is surveyed Amount parameter includes but is not limited to：Described mobile device receives reception work(during reference signal A that described first base station sent Rate, described mobile device receive receiving power during reference signal B that described mobile relay sent and described movement sets Receiver signal field intensity in standby etc..

Specifically, in described first base station with described second base station before the switch, described first base station is led to from Obtain the power measurement parameter of described mobile relay and described mobile device at the mobile relay of letter, and be based on described power measurement Parameter is determining described first Signal to Interference plus Noise Ratio.

In the present embodiment, described mobile device sends power measurement parameter to described mobile relay, described mobile relay Itself the first Signal to Interference plus Noise Ratio to described mobile device is calculated according to described power measurement parameter, and acquired power is surveyed Amount parameter and described first Signal to Interference plus Noise Ratio send to described first base station.

Then, the transmit power based on described power measurement parameter, currently transmitted reference signal for the described first base station is true Second Signal to Interference plus Noise Ratio to described mobile device for fixed described second base station.

Specifically, described first base station is according to the transmit power of described power measurement parameter, currently transmitted reference signal To calculate the 3rd Signal to Interference plus Noise Ratio to described mobile device for the first base station, and described 3rd Signal to Interference plus Noise Ratio computed weighted, To estimate described second Signal to Interference plus Noise Ratio.

Preferably, described first base station also obtains the transmit power of the currently transmitted reference signal in described second base station, and profit With formula 1：To determine described second Signal to Interference plus Noise Ratio SINR_p.

Wherein, described first base station obtains the currently transmitted reference in described second base station by the communication interface with the second base station The transmit power of signal.Described communication interface is preferably X2 interface.

Thus, if described first base station can estimate described second base station exactly and send according to current transmit power Reference signal, the second Signal to Interference plus Noise Ratio to described mobile device.

In step S20, when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described the One base station calculates the transmit power that described second base station sends reference signal after handover, and acquired transmit power is sent To described second base station, so that described second base station sends reference signal according to acquired transmit power after handover.Wherein, Described threshold value is preferably 1.

Specifically, whether described first base station judges the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio more than default Threshold value, when described difference is more than described threshold value, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described first base station, and utilizes Formula 1 calculates the transmit power that described second base station sends reference signal after handover；When described difference is not more than described threshold During value, described first base station determines that described second base station still sends reference signal with current transmit power after handover.

For example, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described first base station, and described formula 1 is transformed into formula 2：Wherein, SINR_TFor the first Signal to Interference plus Noise Ratio, P_{Tx_DeNB2}' for described second base station switching after transmit power, RSRP_{RN_RUE}For the currently transmitted reference signal of described first base station Transmit power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device, PL₂For described second base station Transmit power sends the path loss estimated value of reference signal extremely described mobile device, RSRP_{DeNB1_RUE}Described mobile device is currently connect The receiving power of the reference signal from described first base station received.

Preferably, when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described first base Stand according to the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio and the transmit power of described second base station transmission reference signal The transmit power to determine described second base station transmission reference signal after handover for the corresponding relation.Wherein, described corresponding pass System can be linear relationship.

For example, described first base station utilizes formula 3：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-K(SINR_T-SINR_P), to determine described Diyl station sends the transmit power of reference signal after handover.Wherein, K is weights, P_{Tx_DeNB2}' it is after described second base station switches Transmit power, P_{Tx_DeNB2}For the current transmit power in described second base station, SINR_pFor described second Signal to Interference plus Noise Ratio, SINR_TFor First Signal to Interference plus Noise Ratio.Then, by determined by described second base station send reference signal transmit power be supplied to described second Base station, so as described second base station according to determined by transmit power send reference signal after handover.

As a kind of preferred version, described step S20 also includes：Described first base station judges that described second base station is current Transmit power and determined by switch after the difference of transmit power whether minimum send with default more than current transmit power The difference of power is however, it is determined that during the difference of the transmit power current more than described second base station and default minimum transmit power, described First base station sends described minimum transmit power to described second base station, so that described second base station is after handover according to minimum Transmit power is sending reference signal；Conversely, transmit power determined by inciting somebody to action is supplied to described second base station, for described second Base station after handover according to determined by transmit power send reference signal.

In the present embodiment, described first base station utilizes formula 4：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-min{K(SINR_T-SINR_P), (P_{Tx_DeNB2}-P_Tmin) determining that described second base station sends the transmit power of reference signal after handover；Wherein, P_TminFor Little transmit power；And transmit power determined by inciting somebody to action is supplied to described second base station.

Example IV

As shown in figure 4, the present invention also provides a kind of coordination system of predicted interference.Described coordination system 1 includes：By moving Disorder of internal organs is continued 2 first base stations 11 being communicated with mobile device 3, and along described mobile relay 2 running orbit and will be with institute State the second base station that first base station 11 switches over.Wherein, described mobile relay 2, mobile device 3, first base station 11 and second Base station 12, as described in embodiment one, will not be described in detail herein.

Described first base station 11 includes：First Signal to Interference plus Noise Ratio processing unit 111, the first power processing unit 112.

Described first Signal to Interference plus Noise Ratio processing unit 111 is used for switching over it in described first base station 11 and the second base station 12 Before, obtain the power measurement parameter of described mobile device 3 and described mobile relay 2 believes dry making an uproar to the first of described mobile device 3 Than；And the transmit power prediction based on described power measurement parameter and the currently transmitted reference signal of described first base station 11 is with current Transmit power send reference signal when described in the second Signal to Interference plus Noise Ratio to described mobile device 3 for second base station 12.Wherein, described The power measurement parameter of mobile device 3 includes but is not limited to：Described mobile device 3 receives what described first base station 11 was sent Receiving power during reference signal A, described mobile device 3 receive connecing during reference signal B that described mobile relay 2 sent Receiver signal field intensity in receipts power and described mobile device 3 etc..

Specifically, in described first base station 11 with described second base station 12 before the switch, described first Signal to Interference plus Noise Ratio Processing unit 111 obtains the power measurement of described mobile relay 2 and described mobile device 3 at the mobile relay 2 communicating Parameter, and described first Signal to Interference plus Noise Ratio is determined based on described power measurement parameter.

In the present embodiment, also include in described coordination system 1：The 3rd acquisition processing unit positioned at described mobile relay 2.

Described 3rd obtains processing unit is used for the power measurement parameter determination institute based on acquired described mobile device 3 State the first Signal to Interference plus Noise Ratio to described mobile device 3 for the mobile relay 2, and by the power measurement parameter of described mobile device 3 and institute State the first Signal to Interference plus Noise Ratio to send to described first Signal to Interference plus Noise Ratio processing unit 111.

For example, described mobile device 3 sends power measurement parameter to the described 3rd acquisition processing unit, and the described 3rd obtains Take processing unit to calculate described mobile relay 2 according to described power measurement parameter and believe dry making an uproar to the first of described mobile device 3 Than, and acquired power measurement parameter and described first Signal to Interference plus Noise Ratio are sent to described first Signal to Interference plus Noise Ratio processing unit 111.

Then, described first Signal to Interference plus Noise Ratio processing unit 111 is based on described power measurement parameter, currently transmitted reference letter Number transmit power determine the second Signal to Interference plus Noise Ratio to described mobile device 3 for described second base station 12.

Specifically, described first Signal to Interference plus Noise Ratio processing unit 111 is according to described power measurement parameter, currently transmitted reference The transmit power of signal is calculating the 3rd Signal to Interference plus Noise Ratio to described mobile device 3 for the first base station 11 and dry to the described 3rd letter Ratio of making an uproar computes weighted, and estimates described second Signal to Interference plus Noise Ratio.

Preferably, described first Signal to Interference plus Noise Ratio processing unit 111 is additionally operable to obtain the currently transmitted ginseng in described second base station 12 Examine the transmit power of signal, and utilize formula 1：Come Predict described second Signal to Interference plus Noise Ratio SINR_p.Wherein, RSRP_{RN_RUE}Transmission for the currently transmitted reference signal of described first base station 11 Power, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device 3, P_{Tx_DeNB2}For described second base station 12 The transmit power of currently transmitted reference signal, PL₂Send reference signal for described second base station 12 transmit power to described movement Path loss estimated value during equipment 3, RSRP_{DeNB1_RUE}The currently received ginseng from described first base station 11 of described mobile device 3 Examine the receiving power of signal.

Wherein, described first Signal to Interference plus Noise Ratio processing unit 111 is by obtaining described the with the communication interface of the second base station 12 The transmit power of the currently transmitted reference signal in two base station 12.Described communication interface is preferably X2 interface.

Thus, if described first Signal to Interference plus Noise Ratio processing unit 111 can estimate exactly described second base station 12 according to Current transmit power sends reference signal, the second Signal to Interference plus Noise Ratio to described mobile device 3.

Described first power processing unit 112 is used for being more than in advance in the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio If during threshold value, calculate described second base station 12 and send transmit power during reference signal after handover, and by acquired transmission Power is sent to described second base station 12, so that described second base station 12 sends ginseng after handover according to acquired transmit power Examine signal.Wherein, described threshold value is preferably 1.

Specifically, described first power processing unit 112 judges the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio Whether it is more than predetermined threshold value, when described difference is more than described threshold value, described first base station 11 is by described first Signal to Interference plus Noise Ratio generation Enter formula 1, and calculate, using formula 1, the transmit power that described second base station 12 sends reference signal after handover；When described When difference is not more than described threshold value, described first base station 11 determines described second base station 12 after handover still with current transmission work( Rate sends reference signal.

For example, described first Signal to Interference plus Noise Ratio is substituted into formula 1 by described first power processing unit 112, and by described formula 1 It is transformed into formula 2：Wherein, SINR_TFor first Signal to Interference plus Noise Ratio, P_{Tx_DeNB2}' for the transmit power after the switching of described second base station 12, RSRP_{RN_RUE}Current for described first base station 11 Send the transmit power of reference signal, CarrierRSSI_RUEFor the carrier receiver signal strength of described mobile device 3, PL₂For Described second base station 12 transmit power sends the path loss estimated value of reference signal extremely described mobile device 3, RSRP_{DeNB1_RUE}Described The receiving power of the currently received reference signal from described first base station 11 of mobile device 3.

Preferably, when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described first work( Rate processing unit 112 is additionally operable to send with described second base station 12 according to the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio The corresponding relation of the transmit power of reference signal is determining the transmission of described second base station 12 transmission reference signal after handover Power.Wherein, described corresponding relation can be linear relationship.

For example, described first power processing unit 112 utilizes formula 3：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-K(SINR_T-SINR_P), To determine that described second base station 12 sends the transmit power of reference signal after handover.Wherein, K is weights, P_{Tx_DeNB2}' it is described Transmit power after the switching of second base station 12, P_{Tx_DeNB2}For the current transmit power in described second base station 12, SINR_pFor described Two Signal to Interference plus Noise Ratio, SINR_TFor the first Signal to Interference plus Noise Ratio.Then, transmit power determined by general is supplied to described second base station 12, with Toilet state the second base station 12 according to determined by transmit power send reference signal after handover.

As a kind of preferred version, described first power processing unit 112 is additionally operable to judge that described second base station 12 is current Transmit power and determined by switch after the difference of transmit power whether minimum send out with default more than current transmit power Send the difference of power however, it is determined that more than the current transmit power in described second base station 12 and default minimum transmit power difference when, Described first base station 11 sends described minimum transmit power to described second base station 12, so that described second base station 12 is in switching To send reference signal according to minimum transmit power afterwards；Conversely, transmit power determined by inciting somebody to action is supplied to described second base station 12, For described second base station 12 after handover according to determined by transmit power to send reference signal.

In the present embodiment, described first power processing unit 112 utilizes formula 4：P_{Tx_DeNB2}′=P_{Tx_DeNB2}-min{K (SINR_T-SINR_P),(P_{Tx_DeNB2}-P_Tmin) determining that described second base station 12 sends the transmission work(of reference signal after handover Rate；Wherein, P_TminFor minimum transmit power；And transmit power determined by inciting somebody to action is supplied to described second base station 12.

In sum, a kind of coordination approach of predicted interference of the present invention and system, by first base station and the second base station Before switching over, the power measurement parameter according to acquired mobile device and with described mobile device communication first The transmit power of base station estimating the transmit power of the second base station that will switch, can determine described the before the switching of base station Two base stations send the transmit power of reference signal, and after base station switches over, described second base station is with the transmit power after determining Send reference signal, so can reduce the second base station to the interference of mobile device so that mobile device can be by movement Continue and carry out proper communication with described second base station；In addition, using the fixing feature in the track of rapid, default path loss is estimated Evaluation, and to estimate the Signal to Interference plus Noise Ratio of the second base station using formula 1, solves in prior art it is necessary in described mobile device Set up the shortcoming that just can determine that path loss estimated value after communicating with the second base station；Additionally, when determined by switch after transmission work( When rate is too small, in order to ensure the basic service demand of described second base station return link, described second base station will be sent with minimum Power is sending reference signal.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial and utilize It is worth.

Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as All equivalent modifications becoming or change, must be covered by the claim of the present invention.

Claims

1. a kind of coordination approach of predicted interference, is applied to the first base station being communicated by mobile relay with mobile device, And along described mobile relay running orbit and the second base station that will switch over described first base station constituted be System is it is characterised in that the coordination approach of described predicted interference at least includes：

1) before described first base station is switched over the second base station, described second base station obtains from described first base station Receiving power measurement report, wherein, described receiving power measurement report at least includes：Described mobile relay is to described mobile device The first Signal to Interference plus Noise Ratio, the power measurement parameter of described mobile device and the currently transmitted reference signal of described first base station transmission Power；And based on the prediction of described receiving power measurement report with current transmit power send during reference signal described in the second base station The second Signal to Interference plus Noise Ratio to described mobile device；

2) when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described second base station is after handover Reduce the transmit power sending reference signal.

2. the coordination approach of predicted interference according to claim 1 is it is characterised in that described second base station obtains and is derived from institute The mode stating the reception receiving power measurement report of first base station includes：

1-1) the mobile relay pair described in power measurement parameter determination based on acquired described mobile device for the described mobile relay First Signal to Interference plus Noise Ratio of described mobile device, and the power measurement parameter of described mobile device and described first Signal to Interference plus Noise Ratio are sent out Deliver to described first base station；

1-2) described first base station by the power measurement parameter of acquired described mobile device, described first Signal to Interference plus Noise Ratio and is worked as The transmit power of front sent reference signal generates described receiving power measurement report, and sends to described second base station.

3. the coordination approach of predicted interference according to claim 1 is it is characterised in that described second base station is based on described connecing Receive Power Measurement Report prediction with current transmit power send during reference signal described in the second base station to described mobile device The mode of the second Signal to Interference plus Noise Ratio includes：

Using formula：Dry to predict described second letter Make an uproar and compare SINR_p；

Wherein, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUEFor described The carrier receiver signal strength of mobile device, P_{Tx_DeNB2}For the transmit power of the currently transmitted reference signal in described second base station, PL₂Send the path loss estimated value of reference signal extremely described mobile device, RSRP for described second base-station transmitting-power_{DeNB1_RUE}Institute State the receiving power of the currently received reference signal from described first base station of mobile device.

4. the coordination approach of predicted interference according to claim 1 is it is characterised in that described second base station drops after handover The mode of the low transmit power sending reference signal includes：It is more than pre- in the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio If during threshold value, described second base station is according to difference and the sent reference signal of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio The corresponding relation of transmit power is determining the transmit power of the transmission reference signal after switching；And after handover, with determined by Transmit power sends reference signal.

5. the coordination approach of predicted interference according to claim 4 is it is characterised in that described step 2) also include：Described Second base station judge current transmit power and determined by transmit power difference whether more than current transmit power with default Minimum transmit power difference, if more than the difference of current transmit power and default minimum transmit power, pressing after handover Send described reference signal according to minimum transmit power；If conversely, no more than current transmit power and default minimum transmission work( The difference of rate, then after handover according to determined by transmit power send reference signal.

6. a kind of coordination system of predicted interference is it is characterised in that at least include：

The first base station being communicated with mobile device by mobile relay, and along described mobile relay running orbit and be By the second base station switching over described first base station；

Described second base station includes：

Second Signal to Interference plus Noise Ratio processing unit, before being switched over the second base station in described first base station, is obtained and is derived from institute State the receiving power measurement report of first base station, wherein, described receiving power measurement report at least includes：Described mobile relay pair First Signal to Interference plus Noise Ratio of described mobile device, the power measurement parameter of described mobile device and the currently transmitted ginseng of described first base station Examine the transmit power of signal；And when reference signal is sent with current transmit power based on the prediction of described receiving power measurement report Second Signal to Interference plus Noise Ratio to described mobile device for described second base station；

Second power processing unit, for receiving described second Signal to Interference plus Noise Ratio and first of described second Signal to Interference plus Noise Ratio processing unit Signal to Interference plus Noise Ratio, and when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, control described second base Stand and reduce the transmit power sending reference signal after handover.

7. the coordination system of predicted interference according to claim 6 is it is characterised in that described coordination system also includes：

Positioned at the first acquisition processing unit of described mobile relay, for the power measurement based on acquired described mobile device First Signal to Interference plus Noise Ratio to described mobile device for the mobile relay described in parameter determination, and the power measurement ginseng by described mobile device Several and described first Signal to Interference plus Noise Ratio sends to described first base station；

Positioned at the second acquisition processing unit of described first base station, for by the described movement acquired in described first acquisition unit The transmit power of the power measurement parameter of equipment, described first Signal to Interference plus Noise Ratio and currently transmitted reference signal connects described in generating Receive Power Measurement Report, and send to described second Signal to Interference plus Noise Ratio processing unit.

8. the coordination system of predicted interference according to claim 6 is it is characterised in that described second Signal to Interference plus Noise Ratio processes list Unit is additionally operable to：

9. predicted interference according to claim 6 coordination system it is characterised in that described second power processing unit also For described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio difference be more than predetermined threshold value when, according to described first Signal to Interference plus Noise Ratio with The corresponding relation of the transmit power that the difference of the second Signal to Interference plus Noise Ratio sends reference signal with described second base station to determine institute after switching State the transmit power that the second base station sends reference signal；So that described second base station after handover according to determined by transmit power Send reference signal.

10. the coordination system of predicted interference according to claim 9 is it is characterised in that described second power processing unit Be additionally operable to judge the current transmit power in described second base station and determined by switch after transmit power difference whether more than working as Front transmit power and the difference of default minimum transmit power, if more than current transmit power and default minimum transmit power Difference, then control described second base station after handover according to minimum transmit power send described reference signal；If conversely, being not more than The difference of current transmit power and default minimum transmit power, then control described second base station after handover according to determined by Transmit power sends reference signal.

A kind of 11. coordination approachs of predicted interference, are applied to the first base station being communicated by mobile relay with mobile device, And along described mobile relay running orbit and the second base station that will switch over described first base station constituted be System is it is characterised in that the coordination approach of described predicted interference at least includes：

1) before described first base station is switched over the second base station, described first base station obtains the power of described mobile device Measurement parameter and described mobile relay the first Signal to Interference plus Noise Ratio to described mobile device；And based on described power measurement parameter and Described in the transmit power prediction of the currently transmitted reference signal of described first base station is sent during reference signal with current transmit power Second Signal to Interference plus Noise Ratio to described mobile device for second base station；

2) when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, described first base station calculates described Second base station sends the transmit power of reference signal after handover, and acquired transmit power is sent to described second base Stand, so that described second base station sends reference signal according to acquired transmit power after handover.

The coordination approach of 12. predicted interference according to claim 11 is it is characterised in that the acquisition of described first base station is described The mode of the power measurement parameter of mobile device, described mobile relay the first Signal to Interference plus Noise Ratio to described mobile device includes：Institute State mobile relay based on the mobile relay described in power measurement parameter determination of acquired described mobile device, described movement to be set The first standby Signal to Interference plus Noise Ratio, and the power measurement parameter of described mobile device and described first Signal to Interference plus Noise Ratio are sent to described One base station.

The coordination approach of 13. predicted interference according to claim 11 is it is characterised in that described step 1) also Including：Described first base station also obtains the transmit power of the currently transmitted reference signal in described second base station, and utilizes formula：To determine described second Signal to Interference plus Noise Ratio SINR_p；Its In, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUESet for described movement Standby carrier receiver signal strength, P_{Tx_DeNB2}For the transmit power of the currently transmitted reference signal in described second base station, PL₂For institute State the path loss estimated value that the second base-station transmitting-power sends reference signal extremely described mobile device, RSRP_{DeNB1_RUE}Described movement sets The receiving power of the standby currently received reference signal from described first base station.

The coordination approach of 14. predicted interference according to claim 11 is it is characterised in that the calculating of described first base station is described The mode that second base station sends transmit power during reference signal after handover includes：According to described first Signal to Interference plus Noise Ratio and second The corresponding relation of the transmit power that the difference of Signal to Interference plus Noise Ratio sends reference signal with described second base station to determine described second base station The transmit power of transmission reference signal after handover.

The coordination approach of 15. predicted interference according to claim 14 is it is characterised in that described step 2) also include：Sentence The current transmit power in described second base station of breaking and determined by switch after transmit power difference whether more than current transmission The difference of power and default minimum transmit power is however, it is determined that more than the current transmit power in described second base station and default minimum During the difference of transmit power, described first base station sends described minimum transmit power to described second base station, for described second Base station to send reference signal according to minimum transmit power after handover；Conversely, will determined by transmit power be supplied to described Second base station.

A kind of coordination system of 16. predicted interference is it is characterised in that at least include：

Described first base station includes：

First Signal to Interference plus Noise Ratio processing unit, before switching over the second base station in described first base station, obtains described shifting The power measurement parameter of dynamic equipment and described mobile relay the first Signal to Interference plus Noise Ratio to described mobile device；And it is based on described work( The transmit power prediction of rate measurement parameter and the currently transmitted reference signal of described first base station sends ginseng with current transmit power Examine the second Signal to Interference plus Noise Ratio to described mobile device for the second base station described in during signal；

First power processing unit, for receiving described second Signal to Interference plus Noise Ratio and first of described first Signal to Interference plus Noise Ratio processing unit Signal to Interference plus Noise Ratio, and when the difference of described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio is more than predetermined threshold value, calculate described second base Stand and send the transmit power of reference signal after handover, and acquired transmit power is sent to described second base station, for Described second base station sends reference signal according to acquired transmit power after handover.

The coordination system of 17. predicted interference according to claim 16 is it is characterised in that described coordination system also includes： Positioned at the 3rd acquisition processing unit of described mobile relay, for the power measurement parameter based on acquired described mobile device Determine the first Signal to Interference plus Noise Ratio to described mobile device for the described mobile relay, and by the power measurement parameter of described mobile device and Described first Signal to Interference plus Noise Ratio sends to described first Signal to Interference plus Noise Ratio processing unit.

The coordination system of 18. predicted interference according to claim 16 is it is characterised in that described first believes dry making an uproar It is additionally operable to obtain the transmit power of the currently transmitted reference signal in described second base station than processing unit；And utilize formula：To determine described second Signal to Interference plus Noise Ratio SINR_p；Its In, RSRP_{RN_RUE}For the transmit power of the currently transmitted reference signal of described first base station, CarrierRSSI_RUESet for described movement Standby carrier receiver signal strength, P_{Tx_DeNB2}For the transmit power of the currently transmitted reference signal in described second base station, PL₂For institute State the path loss estimated value that the second base-station transmitting-power sends reference signal extremely described mobile device, RSRP_{DeNB1_RUE}Described movement sets The receiving power of the standby currently received reference signal from described first base station.

The coordination system of 19. predicted interference according to claim 16 is it is characterised in that described first power processing unit It is additionally operable to the transmission of the difference according to described first Signal to Interference plus Noise Ratio and the second Signal to Interference plus Noise Ratio and described second base station transmission reference signal The corresponding relation of power is determining the transmit power of described second base station transmission reference signal after handover.

The coordination system of 20. predicted interference according to claim 19 is it is characterised in that described first power processing unit Be additionally operable to judge the current transmit power in described second base station and determined by switch after transmit power difference whether more than working as The difference of front transmit power and default minimum transmit power however, it is determined that more than the current transmit power in described second base station with pre- If the difference of minimum transmit power when, described first base station sends described minimum transmit power to described second base station, for Described second base station to send reference signal with minimum transmit power；Conversely, will determined by transmit power be supplied to described the Two base stations.