CN104869627A

CN104869627A - Signal amplification gain adjustment method, device and related equipment

Info

Publication number: CN104869627A
Application number: CN201410066951.9A
Authority: CN
Inventors: 闫渊; 王军; 程广辉
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2014-02-26
Filing date: 2014-02-26
Publication date: 2015-08-26
Anticipated expiration: 2034-02-26
Also published as: CN104869627B

Abstract

The invention discloses a signal amplification gain adjustment method, a signal amplification gain adjustment device and related equipment. The signal amplification gain adjustment method comprises the steps of: monitoring receiving power of a sending-back antenna of a wireless repeater for receiving a downlink signal sent by a base station, wherein the receiving power serves as first receiving power; determining power obtained by amplifying the first receiving power by using preset downlink amplification gain, wherein the power serves as a transmitting power of an access antenna of the wireless repeater for transmitting the downlink signal; determining receiving power of the sending-back antenna for receiving the downlink signal sent by the access antenna, wherein the receiving power serves as second receiving power; determining a difference value between the transmitting power of the access antenna for transmitting the downlink signal and the second receiving power as the isolation of the wireless repeater; and adjusting downlink amplification gain of the wireless repeater according to the isolation of the wireless repeater. Since the wireless repeater can determine the actual isolation of the sending-back antenna and the access antenna, the downlink amplification gain is adjusted appropriately, so that the self-excitation phenomenon can be avoided.

Description

A kind of signal gain amplifier method of adjustment, device and relevant device

Technical field

The present invention relates to wireless communication field, particularly relate to a kind of signal gain amplifier method of adjustment, device and relevant device.

Background technology

Wireless signal can be decayed gradually along with the increase of propagation distance, and make the signal of the edge customer of the network coverage of base station and blind area user more weak, communication quality is poor.In tdd systems, high frequency band signal can meet the planning requirement of the network coverage usually in outdoor, when high frequency band signal carries out in-door covering through building, due to the propagation loss of high frequency band signal and penetration loss all larger, make signal attenuation very large, cause the internal home network degree of depth to cover not enough.

Covering not enough problem to overcome the internal home network degree of depth, using wireless discharging-directly station to carry out in-door covering.By the passback astronomical cycle of wireless discharging-directly station in outdoor, access astronomical cycle is in indoor, and passback antenna is used for wireless discharging-directly station and Signal transmissions is carried out in base station, and access antenna is used for wireless discharging-directly station and user equipment (UE) carries out Signal transmissions.Wireless discharging-directly station carries out Bi-directional amplifier to the signal transmission between base station and mobile terminal and forwards, the downstream signal of base station passes through access antenna transmission to UE after wireless discharging-directly station amplifies, the upward signal of UE passes through passback antenna transmission to base station after wireless discharging-directly station amplifies, thus achieves the expansion of the network coverage to base station.

At present, wireless discharging-directly station is when amplifying upward signal and downstream signal, usually pre-set up gain amplifier and descending gain amplifier, use fixing up gain amplifier and fixing descending gain amplifier to amplify upward signal and downstream signal respectively.

When wireless discharging-directly station amplifies downstream signal, while passback antenna receives the downstream signal of base station transmission, also can repeat to receive the downstream signal from access antenna transmission, if wireless discharging-directly station returns antenna and access antenna isolation because construction wrong causes is inadequate, to the input power returning antenna be enlarged markedly, now, if use fixing descending gain amplifier to amplify downstream signal, can cause straight-forward station self-excitation phenomenon, power tube is burnt.

Whether current wireless discharging-directly station is lighted by the self-excitation stand by lamp installed judges whether self-excitation to occur, when the input power of the passback antenna of wireless discharging-directly station is excessive, expression lighted by self-excitation stand by lamp will there is self-excitation, once self-excitation stand by lamp is lighted, wireless discharging-directly station can reduce larger descending gain amplifier rapidly, prevent power tube from damaging, but reduce larger descending gain amplifier to reduce, may cause can not effectively amplifying downstream signal, cause communication quality to decline, therefore need to carry out suitable adjustment to descending gain amplifier.

When wireless discharging-directly station amplifies upward signal, the noise of upward signal is also exaggerated, thus made an uproar lifting in the end of base station input, up gain amplifier is larger, the noise that base station receives is also larger, and gain amplifier is generally consider that the requirement of limit coverage condition is carried out arranging, in practical application, so large up gain amplifier may not be needed, too much noise jamming is produced to base station.

Summary of the invention

The embodiment of the present invention provides a kind of signal gain amplifier method of adjustment, device and relevant device, in order to solve the problem causing wireless discharging-directly station generation self-excitation phenomena because descending gain amplifier is excessive existed in prior art.

The embodiment of the present invention provides a kind of signal gain amplifier method of adjustment, comprising:

When the descending amplification channel of wireless discharging-directly station is not opened, the passback antenna of monitoring described wireless discharging-directly station receives the received power of the downstream signal that base station sends, as the first received power;

When the descending amplification channel of described wireless discharging-directly station is opened, determine to use default descending gain amplifier to amplify to described first received power the power obtained, the access antenna as described wireless discharging-directly station sends the transmitting power of described downstream signal;

Determine that described passback antenna receives the received power of the described downstream signal that described access antenna sends, as the second received power;

Described access antenna is sent the transmitting power of described downstream signal and the difference of described second received power, be defined as the isolation of described wireless discharging-directly station;

Adjust the descending gain amplifier of described wireless discharging-directly station according to the isolation of described wireless discharging-directly station, and described isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value.

Adopt the said method that the embodiment of the present invention provides, because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurs.

Further, said method, also comprises:

When the descending amplification channel of described wireless discharging-directly station is not opened, receive the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal, for determining the opening time of described descending amplification channel.

Further, determine that described passback antenna receives the received power of the described downstream signal that described access antenna sends, specifically comprise:

When the descending amplification channel of described wireless discharging-directly station is opened, monitor described passback antenna receives the received power of the described downstream signal that the downstream signal of the current transmission in base station and described access antenna send and value;

By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

The embodiment of the present invention additionally provides a kind of signal gain amplifier adjusting device, comprising:

Monitoring means, for when the descending amplification channel of wireless discharging-directly station is not opened, the passback antenna of monitoring described wireless discharging-directly station receives the received power of the downstream signal that base station sends, as the first received power;

First determining unit, for when the descending amplification channel of described wireless discharging-directly station is opened, determine to use default descending gain amplifier to amplify to described first received power the power obtained, the access antenna as described wireless discharging-directly station sends the transmitting power of described downstream signal;

Second determining unit, for determining that described passback antenna receives the received power of the described downstream signal that described access antenna sends, as the second received power;

3rd determining unit, for described access antenna being sent the transmitting power of described downstream signal and the difference of described second received power, is defined as the isolation of described wireless discharging-directly station;

Adjustment unit, for adjusting the descending gain amplifier of described wireless discharging-directly station according to the isolation of described wireless discharging-directly station, and described isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value.

Adopt the said apparatus that the embodiment of the present invention provides, because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurs.

Further, said apparatus, also comprises:

Receiving element, for when the descending amplification channel of described wireless discharging-directly station is not opened, receive the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal, for determining the opening time of described descending amplification channel.

Further, described second determining unit, specifically for when the descending amplification channel of described wireless discharging-directly station is opened, monitor described passback antenna receives the received power of the described downstream signal that the downstream signal of the current transmission in base station and described access antenna send and value; By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

The embodiment of the present invention additionally provides a kind of wireless discharging-directly station and comprises: passback antenna, terminal module, control module, descending amplification channel and access antenna, wherein:

Described passback antenna, for receiving the downstream signal that base station sends; Receive the downstream signal that described access antenna sends; Downstream signal is sent to described descending amplification channel;

Described terminal module, the passback antenna for monitoring the described wireless discharging-directly station when the descending amplification channel of wireless discharging-directly station is not opened receives the received power of the downstream signal that base station sends, as the first received power; Described first received power is sent to described control module;

Described control module, for receiving described first received power that described terminal module sends; Determine to use default descending gain amplifier to amplify to described first received power the power obtained when the descending amplification channel of described wireless discharging-directly station is opened, the access antenna as described wireless discharging-directly station sends the transmitting power of described downstream signal; Determine that described passback antenna receives the received power of the described downstream signal that described access antenna sends, as the second received power; Described access antenna is sent the transmitting power of described downstream signal and the difference of described second received power, be defined as the isolation of described wireless discharging-directly station; According to the isolation of the described wireless discharging-directly station descending gain amplifier with the described wireless discharging-directly station of adjustment, and described isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value;

Described descending amplification channel, for receiving the described downstream signal that described passback antenna sends; Transmit described downstream signal; Described downstream signal is sent to described access antenna;

Described access antenna, for sending described downstream signal.

Adopt the above-mentioned wireless discharging-directly station that the embodiment of the present invention provides, because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurs.

Further, described terminal module, also for receiving the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal; Described change-over time is sent to described control module;

Described control module, also for receiving the described change-over time that described terminal module sends; The opening time of descending amplification channel is controlled according to described change-over time.

Further, described terminal module, receive specifically for monitoring described passback antenna when the descending amplification channel of described wireless discharging-directly station is opened the received power of the downstream signal of the current transmission in base station and the described downstream signal of described access antenna transmission and value; Described and value are sent to described control module;

Described control module, specifically for receiving described in the transmission of described terminal module and value; By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

The embodiment of the present invention also provides a kind of signal gain amplifier method of adjustment, device and relevant device, in order to solve increasing due to the excessive signal noise that causes of up gain amplifier of existing in prior art, and then the problem of the lifting that causes making an uproar at the bottom of the input of base station.

Embodiments provide a kind of signal gain amplifier method of adjustment, comprising:

The received power of the current reception upward signal of access antenna of monitoring wireless repeater;

Determine to use current up gain amplifier described received power to be amplified to the power obtained, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal;

Determine that the passback antenna of the described wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power;

When described first transmitting power is greater than described second transmitting power, and when difference is greater than the first pre-determined threshold, preset step-length according to first and reduce described current up gain amplifier, as the up gain amplifier after adjustment;

When described first transmitting power is less than described second transmitted power, and when difference is greater than the second pre-determined threshold, preset step-length according to second and increase described current up gain amplifier, as the up gain amplifier after adjustment.

Adopt the said method that the embodiment of the present invention provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Further, before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, also comprise:

Wireless discharging-directly station receives the power control command that base station sends, and described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal;

Determine that subscriber equipment sends the difference of the default greatest path loss between the default maximum transmission power of described upward signal and described subscriber equipment and described wireless discharging-directly station to described wireless discharging-directly station, receive as described wireless discharging-directly station the received power that described subscriber equipment sends described upward signal;

The passback antenna described wireless discharging-directly station being received the received power and described wireless discharging-directly station that subscriber equipment sends described upward signal will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of described wireless discharging-directly station.

Monitoring means, the received power of the current reception upward signal of the access antenna for monitoring wireless repeater;

First determining unit, use current up gain amplifier described received power to be amplified to the power obtained for determining, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal;

Second determining unit, for determining that the passback antenna of the described wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power;

First adjustment unit, for being greater than described second transmitting power when described first transmitting power, and when difference is greater than the first pre-determined threshold, presetting step-length according to first and reducing described current up gain amplifier, as the up gain amplifier after adjustment;

Second adjustment unit, for being less than described second transmitted power when described first transmitting power, and when difference is greater than the second pre-determined threshold, presetting step-length according to second and increasing described current up gain amplifier, as the up gain amplifier after adjustment.

Adopt the said apparatus that the embodiment of the present invention provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Further, said apparatus, also comprises:

Receiving element, for before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, wireless discharging-directly station receives the power control command that base station sends, and described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal;

3rd determining unit, for determining that subscriber equipment sends the difference of the default greatest path loss between the default maximum transmission power of described upward signal and described subscriber equipment and described wireless discharging-directly station to described wireless discharging-directly station, receive as described wireless discharging-directly station the received power that described subscriber equipment sends described upward signal;

4th determining unit, passback antenna for described wireless discharging-directly station being received the received power and described wireless discharging-directly station that subscriber equipment sends described upward signal will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of described wireless discharging-directly station.

The embodiment of the present invention also provides a kind of wireless discharging-directly station, comprising: access antenna, terminal module, control module, up amplification channel and passback antenna, wherein:

Described access antenna, for receiving the upward signal that subscriber equipment sends; Described upward signal is sent to described up amplification channel;

Described terminal module, the received power of the current reception upward signal of the access antenna for monitoring wireless repeater, and this received power is sent to described control module; Determine that the passback antenna of the described wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power; Described second transmitting power is sent to described control module;

Described control module, for receiving the received power of the current reception upward signal of access antenna of the wireless discharging-directly station that described terminal module sends; Determine to use current up gain amplifier described received power to be amplified to the power obtained, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal; Receive described second transmitting power that described terminal module sends; When described first transmitting power is greater than described second transmitting power, and when difference is greater than the first pre-determined threshold, preset step-length according to first and reduce described current up gain amplifier, as the up gain amplifier after adjustment; When described first transmitting power is less than described second transmitted power, and when difference is greater than the second pre-determined threshold, preset step-length according to second and increase described current up gain amplifier, as the up gain amplifier after adjustment.

Described up amplification channel, connects the described upward signal passing antenna and send described in receiving; Transmit described upward signal; Described upward signal is sent to described passback antenna;

Described passback antenna, for launching described upward signal.

Adopt the above-mentioned wireless discharging-directly station that the embodiment of the present invention provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Further, described terminal module, also for before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, receive the power control command that base station sends, described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal; The transmitting power that the passback antenna of described wireless discharging-directly station will send upward signal is sent to described control module;

Described control module, the passback antenna also for receiving the described wireless discharging-directly station that described terminal module sends will send the transmitting power of upward signal; Determine that subscriber equipment sends the difference of the default greatest path loss between the default maximum transmission power of described upward signal and described subscriber equipment and described wireless discharging-directly station to described wireless discharging-directly station, receive as described wireless discharging-directly station the received power that described subscriber equipment sends described upward signal; The passback antenna described wireless discharging-directly station being received the received power and described wireless discharging-directly station that subscriber equipment sends described upward signal will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of described wireless discharging-directly station.

The further feature of the application and advantage will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the application.The object of the application and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.

Accompanying drawing explanation

Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with the embodiment of the present invention one.In the accompanying drawings:

The flow chart of the signal gain amplifier method of adjustment that Fig. 1 provides for the embodiment of the present invention;

The structural representation of the wireless discharging-directly station that Fig. 2 provides for the embodiment of the present invention 1;

The flow chart of the signal gain amplifier method of adjustment that Fig. 3 provides for the embodiment of the present invention 2;

The structural representation of the signal gain amplifier adjusting device that Fig. 4 provides for the embodiment of the present invention 3;

The flow chart of the signal gain amplifier method of adjustment that Fig. 5 provides for the embodiment of the present invention 4;

The structural representation of the wireless discharging-directly station that Fig. 6 provides for the embodiment of the present invention 5;

The flow chart of the signal gain amplifier method of adjustment that Fig. 7 provides for the embodiment of the present invention 6;

The structural representation of the signal gain amplifier adjusting device that Fig. 8 provides for the embodiment of the present invention 7.

Embodiment

The descending gain amplifier of wireless discharging-directly station suitably be adjusted in order to provide thus avoid self-excitation phenomena and ensure the implementation of communication quality, embodiments provide a kind of signal gain amplifier method of adjustment, device and relevant device, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

The embodiment of the present invention provides a kind of signal gain amplifier method of adjustment, as shown in Figure 1, comprising:

Step 101, when the descending amplification channel of wireless discharging-directly station is not opened, the passback antenna of monitoring this wireless discharging-directly station receives the received power of downstream signal that base station sends, as the first received power.

Step 102, when the descending amplification channel of this wireless discharging-directly station is opened, determine use preset descending gain amplifier this first received power is amplified to the power obtained, the access antenna as this wireless discharging-directly station sends the transmitting power of this downstream signal.

Step 103, determine the received power of this downstream signal that this passback antenna receives this access antenna and sends, as the second received power.

Step 104, this access antenna is sent the transmitting power of this downstream signal and the difference of this second received power, be defined as the isolation of this wireless discharging-directly station.

Step 105, adjust the descending gain amplifier of this wireless discharging-directly station according to the isolation of this wireless discharging-directly station, and this isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value.

In the said method that the embodiment of the present invention provides, when the downstream signal sent to subscriber equipment by wireless discharging-directly station repeating base station, the passback antenna of this wireless discharging-directly station receives the downstream signal of base station transmission, after the received power receiving the downstream signal that base station sends being amplified in descending amplification channel, by the access antenna of this wireless discharging-directly station, this downstream signal is sent to this subscriber equipment.This wireless discharging-directly station is arranged on indoor, and the passback astronomical cycle of this wireless discharging-directly station is in outdoor, and access astronomical cycle is in indoor, and this passback antenna is connected by feeder line with this wireless discharging-directly station.

Below in conjunction with accompanying drawing, with specific embodiment, method provided by the invention and device and relevant device are described in detail.

Embodiment 1:

The embodiment of the present invention 1 provides a kind of wireless discharging-directly station, and its structural representation as shown in Figure 2, comprising: passback antenna 201, terminal module 202, control module 203, descending amplification channel 204 and access antenna 205, wherein:

Described passback antenna 201, for receiving the downstream signal that base station sends; Receive the downstream signal that described access antenna sends; Downstream signal is sent to described descending amplification channel;

Described terminal module 202, the passback antenna for monitoring the described wireless discharging-directly station when the descending amplification channel of wireless discharging-directly station is not opened receives the received power of the downstream signal that base station sends, as the first received power; Described first received power is sent to described control module;

Described control module 203, for receiving described first received power that described terminal module sends; Determine to use default descending gain amplifier to amplify to described first received power the power obtained when the descending amplification channel of described wireless discharging-directly station is opened, the access antenna as described wireless discharging-directly station sends the transmitting power of described downstream signal; Determine that described passback antenna receives the received power of the described downstream signal that described access antenna sends, as the second received power; Described access antenna is sent the transmitting power of described downstream signal and the difference of described second received power, be defined as the isolation of described wireless discharging-directly station; According to the isolation of the described wireless discharging-directly station descending gain amplifier with the described wireless discharging-directly station of adjustment, and described isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value;

Described descending amplification channel 204, for receiving the described downstream signal that described passback antenna sends; Transmit described downstream signal; Described downstream signal is sent to described access antenna;

Described access antenna 205, for sending described downstream signal.

Further, described terminal module 202, also for receiving the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal; Described change-over time is sent to described control module;

Described control module 203, also for receiving the described change-over time that described terminal module sends; The opening time of descending amplification channel is controlled according to described change-over time.

Further, described terminal module 202, receive specifically for monitoring described passback antenna when the descending amplification channel of described wireless discharging-directly station is opened the received power of the downstream signal of the current transmission in base station and the described downstream signal of described access antenna transmission and value; Described and value are sent to described control module;

Described control module 203, specifically for receiving described in the transmission of described terminal module and value; By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

By the wireless discharging-directly station that the above embodiment of the present invention 1 provides, because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurring and ensureing communication quality.

Embodiment 2:

The modules of combining wireless repeater, the embodiment of the present invention 2 provides a kind of signal gain amplifier method of adjustment, as shown in Figure 3, specifically comprises following handling process:

Step 301, when the descending amplification channel of wireless discharging-directly station is not opened, terminal module receives the synchronizing signal that base station sends, and sends to control module.

Wherein, this synchronizing signal carries the change-over time that base station sends downstream signal and receives upward signal, for determining the opening time of this descending amplification channel.

Step 302, after control module receives this synchronizing signal that this terminal module sends, send downstream signal according to the base station of carrying in synchronizing signal and receive the change-over time of upward signal, controlling the opening time of descending amplification channel.

Step 303, when the descending amplification channel of wireless discharging-directly station is not opened, terminal module monitoring self receives the received power RSRP0 of downstream signal that base station sends, and this received power is sent to control module.

In the embodiment of the present invention, when base station sends downstream signal, if the descending amplification channel of wireless discharging-directly station is not opened, the passback antenna of wireless discharging-directly station receives only the downstream signal of base station transmission, wireless discharging-directly station does not amplify the received power receiving the downstream signal that base station sends, and now the access antenna of wireless discharging-directly station does not send downstream signal to subscriber equipment.The terminal module of wireless discharging-directly station and descending amplification channel share passback antenna, and passback antenna is connected by feeder line with between terminal module and descending amplification channel.

In this step, when not considering the feeder loss between terminal module and passback antenna, this terminal module monitors the received power RSRP0 that self receives the downstream signal that base station sends, this RSRP0 can be received the received power of the downstream signal that base station sends as passback antenna, as the first received power; Further, when considering the feeder loss L1 between terminal module and passback antenna, then the received power in fact returning the downstream signal that antenna reception base station sends is RSRP0+L1, and as the first received power, wherein, this L1 is known in advance.

There is no strict sequencing between above-mentioned steps 301-302 and step 303, below to consider the situation of the feeder loss L1 between terminal module and passback antenna, describe the concrete treatment step of the descending gain amplifier of adjustment.

Step 304, this control module receive this received power RSRP0, determine that the received power returning the downstream signal that antenna reception base station sends is RSRP0+L1, i.e. the first received power=RSRP0+L1.

Step 305, when the descending amplification channel of wireless discharging-directly station is opened, this control module is determined to use default descending gain amplifier GD0 this first received power to be amplified to the power obtained, and the access antenna as this wireless discharging-directly station sends the transmitting power of this downstream signal.

Wherein, presetting descending gain amplifier GD0 can be arranged flexibly according to practical experience and needs, such as, generally this GD0 can be set to the maximum downstream gain amplifier that design wireless discharging-directly station normally works.

In this step, this control module determines that using default descending gain amplifier GD0 to amplify to this first received power the power obtained is RSRP0+L1+GD0.

Step 306, when the descending amplification channel of this wireless discharging-directly station is opened, the monitoring of this terminal module self receive the received power of the downstream signal that the downstream signal of the current transmission in base station and this access antenna send with value RSRP1, and this and value are sent to this control module.

In the embodiment of the present invention, when base station sends downstream signal, if the descending amplification channel of wireless discharging-directly station is opened, the access antenna of wireless discharging-directly station starts to send downstream signal to subscriber equipment, by the mode of Space Coupling, the downstream signal that access antenna sends can be received by passback antenna, the downstream signal that the downstream signal that now the passback antenna of wireless discharging-directly station receives the current transmission in base station sends with access antenna.

Step 307, after this control module receives this and value, determine the received power of downstream signal that this terminal module receives this access antenna and sends.

In this step, this and value RSRP1 and terminal module are monitored the difference that self receives the received power RSRP0 of the downstream signal that base station sends by this control module, are defined as the received power RSRP2=RSRP1-RSRP0 that this terminal module receives the downstream signal that this access antenna sends.

Further, consider the situation of feeder loss L1 between terminal module and passback antenna, this control module determines that the received power that this passback antenna receives the downstream signal that this access antenna sends is RSRP2+L1, as the second received power.

This access antenna is sent the transmitting power of downstream signal and the difference of this second received power by step 308, this control module, is defined as the isolation of this wireless discharging-directly station.

In this step, the isolation of this wireless discharging-directly station is the actual isolation of this wireless discharging-directly station when normal work.The transmitting power sending downstream signal according to this access antenna of step 305 is RSRP0+L1+GD0, then the isolation ISO=(RSRP0+L1+GD0 of this wireless discharging-directly station)-(RSRP2+L1)=RSRP0+GD0-RSRP2.

Step 309, this control module are according to the descending gain amplifier of the isolation adjustment wireless discharging-directly station of this wireless discharging-directly station.

In this step, the difference of the descending gain amplifier after this isolation deducts adjustment is not less than default minimal difference threshold value m, and wherein this default minimal difference threshold value can be arranged flexibly according to practical experience and needs, such as, in Practical Project, this default minimal difference threshold value is generally m=15dB.The descending gain amplifier GD=RSRP0+GD0-RSRP2-m of the wireless discharging-directly station after adjustment, this control module can carry out power amplification according to the descending gain amplifier after adjustment to the downstream signal in descending amplification channel, and is sent by access antenna.

Further, this control module can be revised descending gain amplifier according to default redundancy n, revised descending gain amplifier GD=RSRP0+GD0-RSRP2-m-n, this default redundancy can be arranged flexibly according to practical experience and needs, and the object arranging redundancy is that the various errors avoiding wireless discharging-directly station to exist in reality normally works further may cause GD arrange excessive thus self-excitation phenomena occurs.

Further, the terminal module of this wireless discharging-directly station can monitor according to predetermined period the received power RSRP0 that self receives the downstream signal that base station sends, and then determine the isolation of this wireless discharging-directly station, this predetermined period can be arranged flexibly according to practical experience and needs, such as, this predetermined period can be 2 days.

Further, this wireless discharging-directly station repeatedly can also calculate isolation, using the isolation of the mean value of multiple isolation as this wireless discharging-directly station.

In the embodiment of the present invention 2, due in actual applications, GD0 is traditionally arranged to be the maximum downstream gain amplifier that design wireless discharging-directly station normally works, therefore, general, GD<GD0.

By the method that the above embodiment of the present invention 2 provides, because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurring and ensureing communication quality.

Embodiment 3:

Based on same inventive concept, according to the signal gain amplifier method of adjustment that the above embodiment of the present invention provides, correspondingly, another embodiment of the present invention additionally provides a kind of signal gain amplifier adjusting device, and its structural representation as shown in Figure 4, specifically comprises:

Monitoring means 401, for when the descending amplification channel of wireless discharging-directly station is not opened, the passback antenna of monitoring described wireless discharging-directly station receives the received power of the downstream signal that base station sends, as the first received power;

First determining unit 402, for when the descending amplification channel of described wireless discharging-directly station is opened, determine to use default descending gain amplifier to amplify to described first received power the power obtained, the access antenna as described wireless discharging-directly station sends the transmitting power of described downstream signal;

Second determining unit 403, for determining that described passback antenna receives the received power of the described downstream signal that described access antenna sends, as the second received power;

3rd determining unit 404, for described access antenna being sent the transmitting power of described downstream signal and the difference of described second received power, is defined as the isolation of described wireless discharging-directly station;

Adjustment unit 405, for adjusting the descending gain amplifier of described wireless discharging-directly station according to the isolation of described wireless discharging-directly station, and described isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value.

Further, said apparatus, also comprises:

Receiving element 406, for when the descending amplification channel of described wireless discharging-directly station is not opened, receive the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal, for determining the opening time of described descending amplification channel.

Further, second determining unit 403, specifically for when the descending amplification channel of described wireless discharging-directly station is opened, monitor described passback antenna receives the received power of the described downstream signal that the downstream signal of the current transmission in base station and described access antenna send and value; By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

The function of above-mentioned each unit may correspond to the respective handling step in flow process shown in Fig. 1 or Fig. 3, does not repeat them here.

Embodiment 4:

The flow chart of a kind of signal gain amplifier method of adjustment that Fig. 5 provides for the embodiment of the present invention 4, specifically comprises following treatment step:

The received power of the current reception upward signal of access antenna of step 501, monitoring wireless repeater.

Step 502, determine use current up gain amplifier this received power is amplified to the power obtained, as the first transmitting power, the passback antenna for this wireless discharging-directly station sends described upward signal.

Step 503, determine that the passback antenna of this wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power.

Step 504, be greater than this second transmitting power when this first transmitting power, and when difference is greater than the first pre-determined threshold, according to first preset step-length reduce deserve before up gain amplifier, as the up gain amplifier after adjustment.

Step 505, be less than this second transmitted power when this first transmitting power, and when difference is greater than the second pre-determined threshold, according to second preset step-length increase deserve before up gain amplifier, as the up gain amplifier after adjustment.

In the said method that the embodiment of the present invention provides, when being forwarded the upward signal that subscriber equipment sends to base station by wireless discharging-directly station, the access antenna of this wireless discharging-directly station receives the upward signal of subscriber equipment transmission, after amplifying the received power of the upward signal that subscriber equipment sends in up amplification channel, there is the passback antenna of this wireless discharging-directly station that this upward signal is sent to base station.This wireless discharging-directly station is arranged on indoor, and the passback astronomical cycle of this wireless discharging-directly station is in outdoor, and access astronomical cycle is in indoor, and this passback antenna is connected by feeder line with this wireless discharging-directly station.

By the method that above-described embodiment 4 provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Embodiment 5:

The embodiment of the present invention 5 provides a kind of wireless discharging-directly station, and its structural representation as shown in Figure 6, comprising: access antenna 601, terminal module 602, control module 603, up amplification channel 604 and passback antenna 605, wherein:

Described access antenna 601, for receiving the upward signal that subscriber equipment sends; Described upward signal is sent to described up amplification channel.

Described terminal module 602, the received power of the current reception upward signal of the access antenna for monitoring wireless repeater, and this received power is sent to described control module; Determine that the passback antenna of the described wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power; Described second transmitting power is sent to described control module.

Described control module 603, for receiving the received power of the current reception upward signal of access antenna of the wireless discharging-directly station that described terminal module sends; Determine to use current up gain amplifier described received power to be amplified to the power obtained, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal; Receive described second transmitting power that described terminal module sends; When described first transmitting power is greater than described second transmitting power, and when difference is greater than the first pre-determined threshold, preset step-length according to first and reduce described current up gain amplifier, as the up gain amplifier after adjustment; When described first transmitting power is less than described second transmitted power, and when difference is greater than the second pre-determined threshold, preset step-length according to second and increase described current up gain amplifier, as the up gain amplifier after adjustment.

Described up amplification channel 604, connects the described upward signal passing antenna and send described in receiving; Transmit described upward signal; Described upward signal is sent to described passback antenna.

Described passback antenna 605, for launching described upward signal.

Further, described terminal module 602, also for before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, receive the power control command that base station sends, described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal; The transmitting power that the passback antenna of described wireless discharging-directly station will send upward signal is sent to described control module;

Described control module 603, the passback antenna also for receiving the described wireless discharging-directly station that described terminal module sends will send the transmitting power of upward signal; Determine that subscriber equipment sends the difference of the default greatest path loss between the default maximum transmission power of described upward signal and described subscriber equipment and described wireless discharging-directly station to described wireless discharging-directly station, receive as described wireless discharging-directly station the received power that described subscriber equipment sends described upward signal; The passback antenna described wireless discharging-directly station being received the received power and described wireless discharging-directly station that subscriber equipment sends described upward signal will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of described wireless discharging-directly station.

By the wireless discharging-directly station that the above embodiment of the present invention 1 provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Embodiment 6:

The modules of combining wireless repeater, the embodiment of the present invention 6 provides a kind of signal gain amplifier method of adjustment, as shown in Figure 7, specifically comprises following handling process:

The terminal module of step 701, wireless discharging-directly station receives the power control command of base station transmission, and by this power control command transmitting to control module.

Wherein, power control command carries the transmitting power P1 indicating the passback antenna of this wireless discharging-directly station will send upward signal.

Step 702, this control module determination subscriber equipment send the difference of the default greatest path loss between the default maximum transmission power of this upward signal and this subscriber equipment and this wireless discharging-directly station to this wireless discharging-directly station, receive as this wireless discharging-directly station the received power that this subscriber equipment sends this upward signal.

In this step, the default maximum transmission power that subscriber equipment sends this upward signal to this wireless discharging-directly station is Pmax, such as: Pmax is generally 23dBm, default greatest path loss between this subscriber equipment and this wireless discharging-directly station is PL0, PL0 is what estimate in advance, be a known fixed value, then this wireless discharging-directly station receives this subscriber equipment and sends the received power of this upward signal for (Pmax-PL0).

The passback antenna of received power and this wireless discharging-directly station that this wireless discharging-directly station reception subscriber equipment is sent this upward signal by step 703, this control module will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of this wireless discharging-directly station.

In this step, the initial up gain amplifier GU=P1-(Pmax-PL0 of this wireless discharging-directly station)=P1-Pmax+PL0.

Further, consider the feeder loss L1 between terminal module and passback antenna, and default redundancy R, the initial up gain amplifier of this wireless discharging-directly station is P1-Pmax+PL0-L1+R.

Further, after determining the initial up gain amplifier of this wireless discharging-directly station, can also carry out real-time to this up gain amplifier or periodically adjust, concrete processing procedure following steps 704-710.

The received power P2 of the current reception upward signal of access antenna of step 704, this terminal module monitoring wireless repeater, and this received power is sent to control module.

In this step, terminal module can be real-time or according to the received power of the current reception upward signal of the access antenna of predetermined period monitoring wireless repeater, wherein, this predetermined period can be arranged flexibly according to practical experience and needs.

After step 705, this control module receive the received power of the current reception upward signal of access antenna that terminal module sends, determine to use current up gain amplifier this received power to be amplified to the power obtained, as the first transmitting power, the passback antenna for this wireless discharging-directly station sends this upward signal.

In this step, this first transmitting power is P2+GU.

Step 706, this terminal module receive the up-to-date power control command that base station sends, and give this control module by this up-to-date power control command transmitting

Step 707, when this control module receive this terminal module send up-to-date power control command after, and the passback antenna of this wireless discharging-directly station indicated in determining this up-to-date power control command will send the transmitting power of upward signal, as the second transmitting power.

Step 708, determine the magnitude relationship of this first transmitting power and this second transmitting power and the difference of this first transmitting power and this second transmitting power.

Step 709, be greater than this second transmitting power when this first transmitting power, and when difference is greater than the first pre-determined threshold, this control module according to first preset step-length reduce deserve before up gain amplifier, as the up gain amplifier after adjustment.

In this step, this first default step-length can be arranged flexibly according to practical experience and needs.

Step 710, when this first transmitting power is less than this second transmitted power, when determining whether the difference of this first transmitting power and the second transmitting power is greater than the second pre-determined threshold, this control module is preset step-length increase according to second and is deserved front up gain amplifier, as the up gain amplifier after adjustment.

In this step, this second default step-length can be arranged flexibly according to practical experience and needs.In actual applications, general, consider the requirement now needing to meet rapidly uplink transmission power, can arrange the second default step-length and be greater than the first default step-length, such as: the second default step-length can be 5dB, the first default step-length can be 2dB.

Further, when this first transmitting power equals this second transmitted power, this control module does not need to adjust up gain amplifier, illustrate and adopt up gain amplifier now to carry out power amplification to upward signal, the transmitting power that passback alignment base station, sky sends upward signal equals to require in the power control command of base station that wireless discharging-directly station sends the transmitting power of upward signal.

By the method that the above embodiment of the present invention 6 provides, because by the passback antenna transmission actual emission power of upward signal and the power control command of base station, wireless discharging-directly station requires that the transmitting power that this wireless discharging-directly station sends upward signal compares, according to comparative result, up gain amplifier is adjusted, make to require that the difference that this wireless discharging-directly station sends the transmitting power of upward signal diminishes in the actual emission power of passback antenna transmission upward signal and this power control command, reduce and the noise of upward signal is amplified, effectively inhibit the low noise lifting of base station input.

Embodiment 7:

Based on same inventive concept, according to the signal gain amplifier method of adjustment that the above embodiment of the present invention provides, correspondingly, another embodiment of the present invention additionally provides a kind of signal gain amplifier adjusting device, and its structural representation as shown in Figure 8, specifically comprises:

Monitoring means 801, the received power of the current reception upward signal of the access antenna for monitoring wireless repeater;

First determining unit 802, use current up gain amplifier described received power to be amplified to the power obtained for determining, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal;

Second determining unit 803, for determining that the passback antenna of the described wireless discharging-directly station indicated in the power control command of the up-to-date transmission in base station received will send the transmitting power of upward signal, as the second transmitting power;

First adjustment unit 804, for being greater than described second transmitting power when described first transmitting power, and when difference is greater than the first pre-determined threshold, presetting step-length according to first and reducing described current up gain amplifier, as the up gain amplifier after adjustment;

Second adjustment unit 805, for being less than described second transmitted power when described first transmitting power, and when difference is greater than the second pre-determined threshold, presetting step-length according to second and increasing described current up gain amplifier, as the up gain amplifier after adjustment.

Further, said apparatus, also comprises:

Receiving element 806, for before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, wireless discharging-directly station receives the power control command that base station sends, and described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal;

3rd determining unit 807, for determining that subscriber equipment sends the difference of the default greatest path loss between the default maximum transmission power of described upward signal and described subscriber equipment and described wireless discharging-directly station to described wireless discharging-directly station, receive as described wireless discharging-directly station the received power that described subscriber equipment sends described upward signal;

4th determining unit 808, passback antenna for described wireless discharging-directly station being received the received power and described wireless discharging-directly station that subscriber equipment sends described upward signal will send the difference of the transmitting power of upward signal, be defined as the initial up gain amplifier of described wireless discharging-directly station.

The function of above-mentioned each unit may correspond to the respective handling step in flow process shown in Fig. 5 or Fig. 7, does not repeat them here.

In the above embodiment of the present invention, after a wireless discharging-directly station adjusts up gain amplifier and descending gain amplifier respectively, general in Practical Project, up gain amplifier after adjustment is not more than descending gain amplifier, i.e. GU≤GD, this also ensure that wireless discharging-directly station self-excitation phenomena can not occur when carrying out power amplification to upward signal simultaneously.

In sum, the scheme that the embodiment of the present invention provides, comprising: when the descending amplification channel of wireless discharging-directly station is not opened, and the passback antenna of monitoring this wireless discharging-directly station receives the received power of the downstream signal that base station sends, as the first received power; When the descending amplification channel of this wireless discharging-directly station is opened, determine to use default descending gain amplifier this first received power to be amplified to the power obtained, the access antenna as this wireless discharging-directly station sends the transmitting power of this downstream signal; Determine that this passback antenna receives the received power of this downstream signal that this access antenna sends, as the second received power; This access antenna is sent the transmitting power of this downstream signal and the difference of this second received power, be defined as the isolation of this wireless discharging-directly station; Adjust the descending gain amplifier of this wireless discharging-directly station according to the isolation of this wireless discharging-directly station, and this isolation deduct adjustment after the difference of descending gain amplifier be not less than default minimal difference threshold value.Because wireless discharging-directly station can determine the actual isolation of passback antenna and access antenna, the descending gain amplifier of suitable adjustment, thus can avoid self-excitation phenomena occurring and ensureing communication quality.

The signal gain amplifier adjusting device that the embodiment of the application provides realizes by computer program.Those skilled in the art should be understood that; above-mentioned Module Division mode is only the one in numerous Module Division mode; if be divided into other modules or do not divide module, as long as signal gain amplifier adjusting device has above-mentioned functions, all should within the protection range of the application.

The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. a signal gain amplifier method of adjustment, is characterized in that, comprising:

2. the method for claim 1, is characterized in that, also comprises:

3. the method for claim 1, is characterized in that, determines that described passback antenna receives the received power of the described downstream signal that described access antenna sends, specifically comprises:

4. a signal gain amplifier adjusting device, is characterized in that, comprising:

5. device as claimed in claim 4, is characterized in that, also comprise:

6. device as claimed in claim 4, it is characterized in that, described second determining unit, specifically for when the descending amplification channel of described wireless discharging-directly station is opened, monitor described passback antenna receives the received power of the described downstream signal that the downstream signal of the current transmission in base station and described access antenna send and value; By described and value and described first received power difference, be defined as the received power that described passback antenna receives the described downstream signal that described access antenna sends.

7. a wireless discharging-directly station, is characterized in that, comprising: passback antenna, terminal module, control module, descending amplification channel and access antenna, wherein:

Described access antenna, for sending described downstream signal.

8. wireless discharging-directly station as claimed in claim 7, is characterized in that, described terminal module, and also for receiving the synchronizing signal that described base station sends, described synchronizing signal carries the change-over time that described base station sends downstream signal and receives upward signal; Described change-over time is sent to described control module;

9. wireless discharging-directly station as claimed in claim 7, it is characterized in that, described terminal module, receive specifically for monitoring described passback antenna when the descending amplification channel of described wireless discharging-directly station is opened the received power of the downstream signal of the current transmission in base station and the described downstream signal of described access antenna transmission and value; Described and value are sent to described control module;

10. a signal gain amplifier method of adjustment, is characterized in that, comprising:

11. methods as claimed in claim 10, is characterized in that, before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, also comprise:

12. 1 kinds of signal gain amplifier adjusting devices, is characterized in that, comprising:

13. devices as claimed in claim 12, is characterized in that, also comprise:

14. 1 kinds of wireless discharging-directly stations, is characterized in that, comprising: access antenna, terminal module, control module, up amplification channel and passback antenna, wherein:

Described control module, for receiving the received power of the current reception upward signal of access antenna of the wireless discharging-directly station that described terminal module sends; Determine to use current up gain amplifier described received power to be amplified to the power obtained, as the first transmitting power, the passback antenna for described wireless discharging-directly station sends described upward signal; Receive described second transmitting power that described terminal module sends; When described first transmitting power is greater than described second transmitting power, and when difference is greater than the first pre-determined threshold, preset step-length according to first and reduce described current up gain amplifier, as the up gain amplifier after adjustment; When described first transmitting power is less than described second transmitted power, and when difference is greater than the second pre-determined threshold, preset step-length according to second and increase described current up gain amplifier, as the up gain amplifier after adjustment;

Described passback antenna, for launching described upward signal.

15. wireless discharging-directly stations as claimed in claim 14, it is characterized in that, described terminal module, also for before the received power of the current reception upward signal of the access antenna of monitoring wireless repeater, receive the power control command that base station sends, described power control command carries the transmitting power indicating the passback antenna of described wireless discharging-directly station will send upward signal; The transmitting power that the passback antenna of described wireless discharging-directly station will send upward signal is sent to described control module;