CN102742174B - Time delay correction method, time delay correction apparatus and time delay correction system - Google Patents

Time delay correction method, time delay correction apparatus and time delay correction system Download PDF

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Publication number
CN102742174B
CN102742174B CN201180003007.3A CN201180003007A CN102742174B CN 102742174 B CN102742174 B CN 102742174B CN 201180003007 A CN201180003007 A CN 201180003007A CN 102742174 B CN102742174 B CN 102742174B
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time delay
receiving
delay adjustment
transmitting
transceiver
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CN102742174A (en
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李玉林
王勇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention provides a time delay correction method, a time delay correction apparatus and a time delay correction system. The time delay correction apparatus comprises a first transmit-receive interface which is used for communication of a transceiver; a second transmit-receive interface which is used for communicating with an antenna group; a radio frequency unit which is used for coupling a first radio frequency signals sent by any transmission channel of the transceiver and received by the first transmit-receive interface to the second transmit-receive interface to make the first radio frequency signals sent to the antenna group, and which is used for frequency mixing of the first radio frequency signals received by the second transmit-receive interface and returned by the antenna group, and coupling obtained second radio frequency signals to the first transmit-receive interface to make the second radio frequency signals sent to at least two receiving channels of the transceiver respectively through the first transmit-receive interface. The embodiments of the invention increase time delay accuracy of the obtained at least two receiving channels and at least two sending channels, improve the time delay correction accuracy, and meet the time delay error requirements of MIMO closed rings.

Description

Time delay adjustment method, equipment and system
Technical field
The present invention relates to communication technical field, relate in particular to a kind of time delay adjustment method, equipment and system.
Background technology
At broadband CDMA (Wideband Code Division Multiple Access, and Long Term Evolution (Long Term Evolution WCDMA), etc. LTE) in radio communication standard, multi-input multi-output antenna system (Multiple-Input Multiple-Output, MIMO) obtained acting on more and more widely, closed-loop MIMO technology is very high to the time delay coherence request between the multiple transmission channels in base station or receive path, therefore, in order to meet the demand of base station closed-loop MIMO to time delay, need to carry out delay correction to transceiver channel.
Existing time delay adjustment method, the time delay of the time delay between each transmission channel or receive path in radio-frequency module and duplexer generation is proofreaied and correct, but correction accuracy is low, cannot meet the requirement of base station closed-loop MIMO to time delay.
Summary of the invention
The embodiment of the present invention provides a kind of time delay adjustment method, equipment and system, to improve the correction accuracy of wireless communication system, meets the requirement of base station closed-loop MIMO to time delay.
On the one hand, the embodiment of the present invention provides a kind of time delay adjustment equipment, comprising:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, be coupled to described the second transmitting-receiving interface, so that described the first radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
According to the embodiment of the present invention execution mode, described time delay adjustment equipment is arranged between the feeder line and described antenna sets being connected with described transceiver.
According to the embodiment of the present invention execution mode, described the first transmitting-receiving interface comprises at least two first transmitting-receiving ports, and each described the first transmitting-receiving port is corresponding with transmission channel described at least one pair of in described transceiver and described receive path; Described the second transmitting-receiving interface comprises at least two second transmitting-receiving ports, and each described the second transmitting-receiving port is corresponding with an antenna in a described first transmitting-receiving port and described antenna sets respectively.
According to the embodiment of the present invention execution mode, described radio frequency unit comprises: local frequency oscillator, mixing device, the first power divider and at least two couplers; Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal; Described mixing device, the described local oscillator radiofrequency signal that described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received and described local frequency oscillator produce is carried out mixing, obtains described the second radiofrequency signal; Described the first power divider, becomes at least two paths of signals for described the second radiofrequency signal that described mixing device is obtained by power division, distributes the described at least two paths of signals obtaining corresponding with described at least two-way receive path respectively; Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, be coupled to described the second transmitting-receiving interface for described the first radiofrequency signal that corresponding transmission channel is sent, so that described the first radiofrequency signal is sent to corresponding antenna by described the second transmitting-receiving interface, and the first radiofrequency signal of returning for the corresponding antenna that described the second transmitting-receiving interface is received is coupled to described mixing device; Also be coupled respectively to described the first transmitting-receiving interface at least two paths of signals that described the first power divider is obtained by power division from described the second radiofrequency signal, so that described at least two paths of signals is sent to respectively corresponding at least two-way receive path by described the first transmitting-receiving interface.
According to the embodiment of the present invention execution mode, between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device; When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the first radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the first radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
According to the embodiment of the present invention execution mode, between described the second power divider and described mixing device, be provided with second switch device, described second switch device is corresponding with mismatch load; Described mixing device is connected with described the second power divider by described second switch device, and described the first radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the second radiofrequency signal that the mixing of described mixing device obtains enter described the first power divider.
According to the embodiment of the present invention execution mode, this time delay adjustment equipment can also comprise: receiving interface and digital processing element; Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends; Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
According to the embodiment of the present invention execution mode, described digital processing element comprises: power conversion module, energy supply control module and processing module; Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment; Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion; Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
According to the embodiment of the present invention execution mode, this time delay adjustment equipment can also comprise: subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
According to the embodiment of the present invention execution mode, each described the first transmitting-receiving port is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches port as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of; Each described the second transmitting-receiving port respectively with corresponding being specially of antenna in described first transmitting-receiving port and a described antenna sets: a described first transmitting-receiving port receives after described the first radiofrequency signal, described the first radiofrequency signal is coupled to described the second transmitting-receiving port by described radio frequency unit, so that described the first radiofrequency signal sends to described antenna by described the second transmitting-receiving port.
The embodiment of the present invention also provides a kind of time delay adjustment system, comprising: transceiver and antenna sets, be provided with time delay adjustment equipment between described transceiver and described antenna;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, be coupled to described the second transmitting-receiving interface, so that described the first radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
The embodiment of the present invention also provides amplifier on a kind of tower, comprises at least one bank of filters and time delay adjustment equipment, and described time delay adjustment equipment is connected with described at least one bank of filters;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, be coupled to described the second transmitting-receiving interface, so that described the first radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
The embodiment of the present invention also provides a kind of mixer, at least one filter and time delay adjustment equipment, and described time delay adjustment equipment is connected with described at least one filter;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, be coupled to described the second transmitting-receiving interface, so that described the first radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
The embodiment of the present invention also provides a kind of time delay adjustment method, comprising:
The first radiofrequency signal that time delay adjustment equipment sends arbitrary road transmission channel in the transceiver of reception sends to antenna sets;
The first radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains the second radiofrequency signal;
Described the second radiofrequency signal is sent to respectively at least two-way receive path in described transceiver by described time delay adjustment equipment.
The time delay adjustment method that the present embodiment provides, equipment and system, time delay adjustment equipment, the mixer of amplifier or integrated time delay adjustment equipment on the tower of integrated time delay adjustment equipment, the radiofrequency signal that in transceiver, arbitrary transmission channel sends can be passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
On the other hand, the embodiment of the present invention also provides a kind of time delay adjustment equipment, comprising:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is distinguished mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
According to the embodiment of the present invention execution mode, time delay adjustment equipment is arranged between the feeder line and described antenna sets being connected with described transceiver.
According to the embodiment of the present invention execution mode, described the first transmitting-receiving interface comprises at least two first transmitting-receiving ports, and each described the first transmitting-receiving port is corresponding with transmission channel described at least one pair of in described transceiver and described receive path; Described the second transmitting-receiving interface comprises at least two second transmitting-receiving ports, and each described the second transmitting-receiving port is corresponding with an antenna in a described first transmitting-receiving port and described antenna sets respectively.
According to the embodiment of the present invention execution mode, described radio frequency unit comprises: local frequency oscillator, mixing device and at least two couplers; Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal; Described mixing device, described at least two-way the 3rd radiofrequency signal and the described local oscillator radiofrequency signal returned for the described antenna sets that described the second transmitting-receiving interface is received are carried out respectively mixing, two-way the 4th radiofrequency signal at least described in obtaining, and respectively described at least two-way the 4th radiofrequency signal is sent to any at least two couplers; Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, for extremely described the second transmitting-receiving interface of described the 3rd radio frequency signal coupling that corresponding transmission channel is sent, so that described the 3rd radiofrequency signal sends to corresponding antenna by described the second transmitting-receiving interface, and the 3rd radio frequency signal coupling returning for the corresponding antenna that described the second transmitting-receiving interface is received is to described mixing device; Also be coupled to described the first transmitting-receiving interface for described the 4th radiofrequency signal that described mixing device is obtained, so that described the 4th radiofrequency signal is sent to corresponding receive path by described the first transmitting-receiving interface.
According to the embodiment of the present invention execution mode, between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device; When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the 3rd radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the 3rd radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
According to the embodiment of the present invention execution mode, between described the second power divider and described mixing device, be provided with second switch device, described second switch device is corresponding with mismatch load; Described mixing device is connected with described the second power divider by described second switch device, and described the 3rd radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the 4th radiofrequency signal that the mixing of described mixing device obtains enter described coupler.
According to the embodiment of the present invention execution mode, time delay adjustment equipment also comprises: receiving interface and digital processing element; Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends; Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
According to the embodiment of the present invention execution mode, described digital processing element comprises: power conversion module, energy supply control module and processing module; Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment; Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion; Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
According to the embodiment of the present invention execution mode, time delay adjustment equipment can also comprise: subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
According to the embodiment of the present invention execution mode, each described the first transmitting-receiving port is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches port as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of; Each described the second transmitting-receiving port respectively with corresponding being specially of antenna in described first transmitting-receiving port and a described antenna sets: a described first transmitting-receiving port receives after described the 3rd radiofrequency signal, described the first radiofrequency signal is coupled to described the second transmitting-receiving port by described radio frequency unit, so that described the 3rd radiofrequency signal sends to described antenna by described the second transmitting-receiving port.
The embodiment of the present invention also provides a kind of time delay adjustment system, comprising: transceiver and antenna sets, be provided with time delay adjustment equipment between described transceiver and described antenna;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is distinguished mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
The embodiment of the present invention also provides amplifier on a kind of tower, comprises at least one bank of filters and time delay adjustment equipment, and described time delay adjustment equipment is connected with described at least one bank of filters;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is distinguished mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
The embodiment of the present invention also provides a kind of mixer, at least one filter and time delay adjustment equipment, and described time delay adjustment equipment is connected with described at least one filter;
Described time delay adjustment equipment comprises:
First transmitting-receiving interface, for described transceiver communication;
The second transmitting-receiving interface, for communicating by letter with described antenna sets;
Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is distinguished mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
The embodiment of the present invention also provides a kind of time delay adjustment method, comprising:
The 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets by time delay adjustment equipment;
At least two-way the 3rd radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains respectively at least two-way the 4th radiofrequency signal;
Described time delay adjustment equipment sends to respectively arbitrary road receive path in described transceiver by described at least two-way the 4th radiofrequency signal respectively.
The time delay adjustment method that the present embodiment provides, equipment and system, time delay adjustment equipment, the mixer of amplifier or integrated time delay adjustment equipment on the tower of integrated time delay adjustment equipment, the radiofrequency signal that in transceiver, at least two-way transmission channel sends can be passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, each the radio frequency obtaining after mixing road signal is returned to respectively to the arbitrary road receive path in transceiver, thereby make time of reception that transceiver can receive Yi road radiofrequency signal taking receive path as benchmark, obtain at least time delay between two-way transmission channel, thereby improve the accuracy of at least two-way transmission channel time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of an embodiment of time delay adjustment equipment provided by the invention;
Fig. 2 is the structural representation of another embodiment of time delay adjustment equipment provided by the invention;
Fig. 3 is the structural representation of another embodiment of time delay adjustment equipment provided by the invention;
Fig. 4 is the structural representation of another embodiment of time delay adjustment equipment provided by the invention;
Figure 5 shows that the transmission of the signal between each module schematic diagram in digital processing element;
Figure 6 shows that the flow chart of an embodiment of the processing module executive control operation in digital processing element;
Fig. 7 is the structural representation of an embodiment of time delay adjustment system provided by the invention;
Fig. 8 is the structural representation of another embodiment of time delay adjustment system provided by the invention;
Fig. 9 is the structural representation of an embodiment of amplifier on tower provided by the invention;
Figure 10 is the structural representation of another embodiment of amplifier on tower provided by the invention;
Figure 11 is the flow chart of an embodiment of time delay adjustment method provided by the invention;
Figure 12 is the flow chart of another embodiment of time delay adjustment method provided by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the structural representation of an embodiment of time delay adjustment equipment provided by the invention, and as shown in Figure 1, this time delay adjustment equipment comprises: the first transmitting-receiving interface 1, the second transmitting-receiving interface 2 and radio frequency unit 3; Wherein:
The first transmitting-receiving interface 1, can be for communicating by letter with transceiver A;
The second transmitting-receiving interface 2, can be for communicating by letter with antenna sets C;
Radio frequency unit 3, first radiofrequency signal that can send for arbitrary road transmission channel in the transceiver A that the first transmitting-receiving interface 1 is received, is coupled to the second transmitting-receiving interface 2, so that the first radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface 2; And the first radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface 2 is received is carried out mixing, the second radiofrequency signal obtaining is coupled to the first transmitting-receiving interface 1, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver A by the first transmitting-receiving interface 1.Like this, transceiver A can according to the transmitting time of arbitrary road transmission channel and at least the time of reception of two-way receive path determine the time delay between two-way receive path at least.
Implement under scene for one at the present embodiment, the time delay adjustment equipment that the embodiment of the present invention provides, can be arranged between the feeder line B and antenna sets C being connected with transceiver A.Under this enforcement scene, the first transmitting-receiving interface 1 can be in time delay adjustment equipment, and the interface unit being connected with feeder line B, for receiving the first radiofrequency signal that the arbitrary transmission channel of transceiver A sends from feeder line B.
Under another enforcement scene of the present embodiment, between feeder line B and time delay adjustment equipment, can also be connected one or any several functional unit (device) that other are placed on transceiver A, for example: amplifier, the external filter in base station, combiner-divider etc. on tower.Under this enforcement scene, the first radiofrequency signal that in transceiver A, arbitrary transmission channel sends, can, after the transparent transmission of these functional units (device), be received by the first transmitting-receiving interface 1.
Be understandable that, the time delay adjustment equipment that the embodiment of the present invention provides, can independently arrange, also can with one or the integrated equipment integratings of being arranged to of any several device such as amplifier, the external filter in base station, combiner-divider on tower.
Radio frequency unit 3 receives after the first radiofrequency signal at the first transmitting-receiving interface 1, and this first radiofrequency signal is coupled to the second transmitting-receiving interface 2, so that this first radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface 2.Wherein, the second transmitting-receiving interface 2 is the interface unit between time delay adjustment equipment and antenna sets C, the first radiofrequency signal is sent to antenna sets C by the second transmitting-receiving interface 2, in antenna sets C, generally include more than two or two antenna, between each antenna, can transmit radiofrequency signal by electromagnetic wave, this first radiofrequency signal is back to the second transmitting-receiving interface 2 after transmitting between different antennae in antenna sets C.The first radiofrequency signal that radio frequency unit 3 returns antenna sets C carries out obtaining the second radiofrequency signal after mixing, and this second radiofrequency signal is coupled to the first transmitting-receiving interface 1, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver A by the first transmitting-receiving interface 1.Transmission channel in transceiver A and receive path corresponding setting in pairs, corresponding transmission channel and the receive path arranging can be connected to same duplexer conventionally in pairs,, the radiofrequency signal that transmission channel sends sends to other equipment that are connected with transceiver A by this duplexer, other equipment send to the radiofrequency signal of transceiver A, receive via the received passage of this duplexer.Therefore, radio frequency unit 3 can send to the second radiofrequency signal and transmission channel receive path and other receive paths of corresponding setting in pairs by the first transmitting-receiving interface 1 conventionally, or radio frequency unit 3 also can send to other receive paths that at least two-way transmission channel difference correspondence arranges in transceiver A by the second radiofrequency signal by the first transmitting-receiving interface 1.
If time delay adjustment equipment is directly connected with feeder line B, the second radiofrequency signal that the first transmitting-receiving interface 1 sends arrives respectively at least two-way receive path in transceiver A via feeder line B; If be also connected with one or any several functional units (device) such as amplifier on tower, the external filter in base station, combiner-divider between time delay adjustment equipment and feeder line B, after the transparent transmission of the second radiofrequency signal that the first transmitting-receiving interface 1 sends via these functional units (device), arrive at least two-way receive path in transceiver A.
It should be noted that, because the radiofrequency signal of transceiver A transmitting and the radiofrequency signal of reception have different frequencies conventionally, therefore, the first radiofrequency signal that time delay adjustment equipment need to return antenna sets C by radio frequency unit 3 is carried out mixing, obtains the second radiofrequency signal (frequency of this second radiofrequency signal need to match with the receive frequency of transceiver A).
Can find out, implement in scene for one that provides at the present embodiment, the first radiofrequency signal that in transceiver A, arbitrary transmission channel sends, pass through successively feeder line B, amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, one of combiner-divider etc. or any several functional unit (device), and after each antenna in time delay adjustment equipment and antenna sets C, be back to time delay adjustment equipment, this second radiofrequency signal that time delay adjustment equipment obtains the first radiofrequency signal mixing returns to respectively at least two-way receive path in transceiver A.
Due to all the first radiofrequency signals of corresponding same transmission channel transmitting of the second radiofrequency signal that in transceiver A, at least two-way receive path receives respectively, therefore, the transmitting time that transceiver A can launch the first radiofrequency signal taking this transmission channel is as benchmark, the time difference of the second radiofrequency signal that more at least two-way receive path receives respectively, thereby obtain at least time delay between two-way receive path, and then can described at least two-way receive path be carried out delay correction the time delay of at least two-way receive path based on obtaining.
Time delay between at least two-way receive path that the time delay adjustment equipment that provides of the embodiment of the present invention obtains is provided, can comprises the time delay of the feeder line B being connected with transceiver A, the time delay between the each antenna in time delay and the antenna sets C of time delay adjustment equipment itself; In addition, can further include the time delay of of amplifier, the external filter in base station, combiner-divider etc. on the tower of optional setting between feeder line B and time delay adjustment equipment or any several functional unit (device), therefore, improve the accuracy of time delay between at least two-way receive path obtaining, thereby improve time delay adjustment precision, met the time delay error demand of closed-loop MIMO.
The time delay adjustment equipment that the present embodiment provides, the radiofrequency signal that in transceiver, arbitrary transmission channel sends is passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
Owing to generally including transmission channel and the receive path of paired setting in transceiver A, and the every pair of transmission channel and receive path are connected to same duplexer conventionally, this duplexer is the transmit port of transmission channel emitting radio frequency signal and the receiving port of receive path received RF signal.Therefore, in order to match with the structure of general transceiver A, the present invention also provides another embodiment of time delay adjustment equipment as shown in Figure 2, simultaneously referring to Fig. 1, wherein:
In the first transmitting-receiving interface 1, can comprise at least two first transmitting-receiving ports 11, each the first transmitting-receiving port 11 is corresponding with at least one pair of transmission channel and receive path in transceiver A;
Accordingly, in the second transmitting-receiving interface 2, can comprise at least two second transmitting-receiving ports 21, each the second transmitting-receiving port 21 is corresponding with an antenna in one first transmitting-receiving port 11 and antenna sets C respectively.; implement in scene at one; the number of the number of the first transmitting-receiving port 11 and the second transmitting-receiving port 21 equates with the antenna radical in antenna sets C respectively; one first transmitting-receiving port 11 can be corresponding with a pair of transmission channel and receive path, also can be corresponding with multipair transmission channel and receive path.
The concrete structure embodiment that radio frequency unit 3 is also provided in the present embodiment, this radio frequency unit 3 can comprise: local frequency oscillator 31, mixing device 32, the first power divider 33 and at least two couplers 34; Wherein:
Local frequency oscillator 31, can be for generation of local oscillator radiofrequency signal, and local oscillator radiofrequency signal is sent to mixing device 32;
Mixing device 32, the local oscillator radiofrequency signal that the first radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface 2 is received and local frequency oscillator 31 produce is carried out mixing, obtains the second radiofrequency signal;
The first power divider 33, can become at least two paths of signals by power division for the second radiofrequency signal that mixing device 32 is obtained, and two-way receive path is corresponding respectively with at least to distribute at least two paths of signals obtaining;
Any at least two couplers 34 is corresponding with an antenna at least one pair of transmission channel and receive path and antenna sets C in transceiver A, can be coupled to the second transmitting-receiving interface 2 for the first radiofrequency signal that corresponding transmission channel is sent, so that the first radiofrequency signal is sent to corresponding antenna by the second transmitting-receiving interface 2, and the first radiofrequency signal that can return for the corresponding antenna that the second transmitting-receiving interface 2 is received is coupled to mixing device 32; At least two paths of signals that can also be used for that the first power divider 33 is obtained by power division from the second radiofrequency signal is coupled respectively to the first transmitting-receiving interface 1 so that this at least two paths of signals be sent to respectively corresponding at least two-way receive path by the first transmitting-receiving interface 1.
It should be noted that, implement in scene for one in the embodiment of the present invention, each the first transmitting-receiving port 11 is with at least one pair of transmission channel in transceiver A and receive path is corresponding refers to, for example: suppose to be provided with 2 pairs of transmission channels and receive path in the transceiver A shown in Fig. 1, be respectively: transmission channel 1 and receive path 1, transmission channel 2 and receive path 2., also Figure 2 shows that example, the first transmitting-receiving port 11a can be corresponding with transmission channel 1 and receive path 1, as the interface unit of transmission channel 1 and receive path 1 and time delay adjustment equipment; The first transmitting-receiving port 11b can be corresponding with transmission channel 2 and receive path 2, as the interface unit of transmission channel 2 and receive path 2 and time delay adjustment equipment.
Each the second transmitting-receiving port 21 respectively with corresponding referring to of antenna in one first transmitting-receiving port 11 and antenna sets C, for example: suppose that the antenna sets C shown in Fig. 1 comprises two antennas, be respectively antenna C1 and antenna C2, also can be corresponding with the first transmitting-receiving port 11a and antenna C1 respectively with the transmitting-receiving of second shown in Fig. 2 port 21a, when the first transmitting-receiving port 11a receives after the first radiofrequency signal, radio frequency unit 3 can be coupled to this first radiofrequency signal the second transmitting-receiving port 21a, make the second transmitting-receiving port 21a that this first radiofrequency signal is sent to antenna C1, same, shown in Fig. 2 second transmitting-receiving port 21b can be corresponding with the first transmitting-receiving port 11b and antenna C2 respectively, when the first transmitting-receiving port 11b receives after the first radiofrequency signal, radio frequency unit 3 can be coupled to this first radiofrequency signal the second transmitting-receiving port 21b, makes the second transmitting-receiving port 21b that this first radiofrequency signal is sent to antenna C2.
Because the first transmitting-receiving interface 1 may further include at least two first transmitting-receiving ports 11, and each the first transmitting-receiving port 11 is corresponding with at least one pair of transmission channel and receive path in transceiver A; The second transmitting-receiving interface 2 may further include at least two second transmitting-receiving ports 21, and each the second transmitting-receiving port 21 is corresponding with an antenna in one first transmitting-receiving port 11 and antenna sets C respectively.Therefore,, under the enforcement scene of the present embodiment, a coupler 34 can corresponding one first transmitting-receiving port 11 and one second transmitting-receiving port 21.For example: the first radiofrequency signal that the coupler 34a shown in Fig. 2 can receive the first transmitting-receiving port 11a of correspondence is coupled to the second corresponding transmitting-receiving port 21a, so that the first radiofrequency signal is sent to corresponding antenna C1 by the second transmitting-receiving port 21a, and the first radiofrequency signal that coupler 34a can receive the second transmitting-receiving port 21a of correspondence is coupled to mixing device 32.Further, each coupler 34 can also obtain the first power divider 33 from the second radiofrequency signal at least two paths of signals by power division is coupled respectively at least the first transmitting-receiving port 11 corresponding to two-way receive path, for example: the coupler 34a shown in Fig. 2 can obtain Yi road signal coupling to the first corresponding transmitting-receiving port 11a by power division by the first power divider 33 from the second radiofrequency signal, so that the first transmitting-receiving port 11aJiang Gai road signal sends to corresponding receive path 1, same, coupler 34b can obtain Yi road signal coupling to the first corresponding transmitting-receiving port 11b by power division by the first power divider 33 from the second radiofrequency signal, so that the first transmitting-receiving port 11bJiang Gai road signal sends to corresponding receive path 2, thereby realize at least two paths of signals and send at least two-way receive path from the first transmitting-receiving port 11 that at least two-way receive path is corresponding respectively.
Still comprise 2 pairs of transmission channels and receive path with the transceiver A of aforementioned hypothesis: transmission channel 1 and receive path 1, and transmission channel 2 and receive path 2; Antenna sets C comprises 2 antennas: antenna C1 and antenna C2 are that example describes.Shown in Fig. 2 first transmitting-receiving interface 1 comprises two first transmitting-receiving ports 11, is respectively the first transmitting-receiving port 11a and the first transmitting-receiving port 11b; The second transmitting-receiving interface 2 comprises two second transmitting-receiving ports 21, is respectively the second transmitting-receiving port 21a and the second transmitting-receiving port 21b; Radio frequency unit 3 comprises two couplers 34, is respectively coupler 34a and coupler 34b.Wherein, transmission channel 1 and receive path 1 are corresponding with the first transmitting-receiving port 11a, the second transmitting-receiving port 21a, antenna C1 and coupler 34a respectively; Transmission channel 2 and receive path 2 are corresponding with the first transmitting-receiving port 11b, the second transmitting-receiving port 21b, antenna C2 and coupler 34b respectively.
Transmission channel 1 in transceiver A sends the first radiofrequency signal, this first radiofrequency signal is through feeder line B, amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several function device (device), received by the first transmitting-receiving port 11a, this first radiofrequency signal is coupled to the second transmitting-receiving port 21a by coupler 34a, make this first radiofrequency signal send to antenna C1 by the second transmitting-receiving port 21a, because each antenna in antenna sets C can receive the radiofrequency signal that other antennas send by electromagnetic wave, therefore, antenna C2 can receive by electromagnetic wave the first radiofrequency signal that antenna C1 sends, this first radiofrequency signal is returned to the second transmitting-receiving port 21b by antenna C2, the first radiofrequency signal that coupler 34b returns to this second transmitting-receiving port 21b is coupled to mixing device 32, the local oscillator radiofrequency signal that mixing device 32 produces this first radiofrequency signal and local frequency oscillator 31 is carried out mixing, obtain the second radiofrequency signal (in the frequency of this second radiofrequency signal and transceiver A, the receive frequency of duplexer matches), and this second radiofrequency signal is sent in the first power divider 33, the first power divider 33 becomes two paths of signals to the second radiofrequency signal according to the power division of setting, wherein a road signal sends to coupler 34a, coupler 34a Jiang Congjianggai road signal coupling to the first transmitting-receiving port 11a, so that this road signal is sent to corresponding receive path 1 by the first transmitting-receiving port 11a, equally, distribute another road signal obtaining to send to coupler 34b from the second radiofrequency signal, coupler 34bJiang Gai road signal coupling to the first transmitting-receiving port 11b, so that this road signal is sent to corresponding receive path 2 by the first transmitting-receiving port 11b.
Receive path 1 and receive path 2 receive respectively after the second radiofrequency signal, the transmitting time that transceiver A can launch the first radiofrequency signal taking transmission channel 1 is as benchmark, receive the time of the second radiofrequency signal according to receive path 1 and receive path 2, the time delay between receive path 1 and receive path 2 is proofreaied and correct.Wherein, the second radiofrequency signal that receive path 1 and receive path 2 receive is in fact respectively that in time delay adjustment equipment, the first power divider 33 carries out the two paths of signals obtaining after power division to the second radiofrequency signal.
Shown in Fig. 2, only the transmitting time for the first radiofrequency signal of sending taking transmission channel 1 is benchmark, time delay between receive path 1 and receive path 2 is proofreaied and correct, be understandable that, the transmitting time of first radiofrequency signal that can also send taking transmission channel 2 is benchmark, and the time delay between receive path 1 and receive path 2 is proofreaied and correct.
Due to certain port in the second transmitting-receiving interface 2, for example: the second transmitting-receiving port 21a sends after the first radiofrequency signal to corresponding antenna C1, this first radiofrequency signal also may have part to turn back to this second transmitting-receiving port 21a, and enter in frequency mixer 32 by coupler 34a, thereby when carrying out mixing, the first radiofrequency signal that the antenna C2 the second transmitting-receiving port 21b being received at frequency mixer 32 returns brings interference signal, accordingly, implement under scene at the another kind of the present embodiment, between any two couplers 34, the second power divider 35 can be further set, between the second power divider 35 and each coupler 34, can be provided with the first switching device 36, each the first switching device can be corresponding with matched load 37, the second power divider 35 can be connected with mixing device 32,
Wherein, when any one coupler in two couplers 34 is connected with the second power divider 35 by the first switching device 36, another coupler connects with corresponding matched load 37 by the first switching device 36, so that the first radiofrequency signal that in two couplers 34, the antenna of coupler 34 correspondences returns arrives mixing device 32 by the second power divider 35, the first radiofrequency signal that the antenna of another coupler 34 correspondences returns is absorbed by matched load 37.
Still, taking Fig. 2 as example, be provided with between the second power divider 35, the second power dividers 35 and coupler 34a and be provided with the first switching device 36a between coupler 34a and coupler 34b, this first switching device 36a is also corresponding with a matched load 37a; Equally, be provided with the first switching device 36b between the second power divider 35 and coupler 34b, this first switching device 36b is also corresponding with a matched load 37b.In addition, the second power divider 35 is also connected with mixing device 32.
When the transmitting time of first radiofrequency signal of launching taking transmission channel 1 is benchmark, proofread and correct the time time delay between receive path 1 and receive path 2, the first switching device 36a can be connected with matched load 37a, this matched load 37a, for absorbing the first radiofrequency signal that antenna C1 returns, prevents that this first radiofrequency signal from entering mixing device 32 by the second power divider 35; The first switching device 36b is connected with the second power divider 35, thereby the first radiofrequency signal that makes antenna C2 return to the second transmitting-receiving port 21b enters mixing device 32 by the second power divider 35.
When the transmitting time of first radiofrequency signal of launching taking transmission channel 2 is benchmark, proofread and correct the time time delay between receive path 1 and receive path 2, the first switching device 36a and the second power divider 35 can be connected, the first switching device 36b and matched load 37b connect, thereby the first radiofrequency signal that antenna C1 returns from the second transmitting-receiving port 21a arrives mixing device 32 by the second power divider 35.
Implement, in scene, between the second power divider 35 and mixing device 32, second switch device 38 can also be further set at one, this second switch device 38 is also corresponding with a mismatch load 39;
When mixing device 32 is connected with the second power divider 35 by second switch device 38, the first radiofrequency signal is sent to mixing device 32 by the second power divider 35; Connect by second switch device 38 and mismatch load 39 when mixing device 32, mismatch load 39 can enter the first power divider 33 for the second radiofrequency signal that 32 mixing of mixing device are obtained.
For example: the coupler 34a shown in Fig. 2 is connected with the second power divider 35 by the first switching device 36a, first mixing device 32 can be connected with the second power divider 35 by second switch device 38, to receive the first radiofrequency signal from coupler 34a.Treat that mixing device 32 carries out after mixing obtains the second radiofrequency signal this first radiofrequency signal, mixing device 32 can be connected with mismatch load 39 by second switch device 38, because the effect of reflected signal is played in mismatch load 39, therefore the second radiofrequency signal that, mismatch load 39 can obtain 32 mixing of mixing device can fully enter the first power divider.
In description above to be provided with 2 pairs of transmission channels and receive path in transceiver A, antenna sets C comprises two antennas, in time delay adjustment equipment first transmitting-receiving interface 1 comprises two first transmitting-receiving ports 11, the second transmitting-receiving interface 2 comprises that two second transmitting-receiving ports 21, for example, have been described in detail a kind of feasible configurations of time delay adjustment equipment.But, the not restriction using this as the time delay adjustment equipment that the embodiment of the present invention is provided.The another kind providing at the present embodiment is implemented under scene, the first transmitting-receiving port 11 can be corresponding with transmission channel and the receive path of 2 couple in transceiver A or more than 2 pairs corresponding setting, for example: suppose in transceiver A, to there is 4 pairs of transmission channels and receive path, shown in Fig. 2 first transmitting-receiving port 11a can with 4 pairs of transmission channels and receive path in transmission channel 1 and receive path 1, and transmission channel 2 and receive path 2 correspondences, , the first transmitting-receiving port 11a both can be used as the interface unit of transmission channel 1 and receive path 1 and time delay adjustment equipment, also can be used as the interface unit of transmission channel 2 and receive path 2 and time delay adjustment equipment.
Under this enforcement scene, the second transmitting-receiving port 21 is still corresponding with one first transmitting-receiving port 11 and an antenna, and a coupler 34 also still can one first of correspondence be received and dispatched port 11 and one second transmitting-receiving port 21, specifically can be referring to description above.
In prior art, in the time there is more than 2 pairs transmission channel and receive path in transceiver A, conventionally also can adopt many antennas, therefore, under this enforcement scene, the time delay adjustment equipment that the embodiment of the present invention provides also can increase the number of the first transmitting-receiving port 11, the second transmitting-receiving port 21 and coupler 34 accordingly, makes the first transmitting-receiving port 11, the second transmitting-receiving port 21 and the number of coupler 34 and the radical of antenna consistent.
As can be seen from the foregoing description, the first switching device 36, the second power divider 35, matched load 37, and second switch device 38 is for to be arranged on two additional devices between coupler 34, therefore, these devices are also along with increase and the corresponding increase of coupler 34 numbers.And the number of local frequency oscillator 31, mixing device 32 and the first power divider can only arrange one, also can be along with the number increase of coupler 34 also suitably increases.
Implement under scene for one at the present embodiment, suppose that transceiver A has 3 pairs of transmission channels and receive path, in antenna sets C, there are 3 antennas, in first of time delay adjustment equipment the transmitting-receiving interface 1, there are 3 first transmitting-receiving ports 11, in the second transmitting-receiving interface 2, there are 3 second transmitting-receiving ports 21, and time delay adjustment equipment have 3 couplers 34.The first transmitting-receiving port 11a receives after the first radiofrequency signal that transmission channel 1 sends, this first radiofrequency signal is coupled to the second transmitting-receiving port 21a by coupler 34a, so that this first radiofrequency signal sends to antenna C1 by the second transmitting-receiving port 21a, because antenna C2 and antenna C3 all can receive the first radiofrequency signal by electromagnetic transmission, in this case, because the first radiofrequency signal that an antenna is returned is carried out mixing and is obtained the second radiofrequency signal, just can realize at least two receive paths in 3 receive paths and return to respectively the second radiofrequency signal after power division, therefore, under this enforcement scene, antenna C2 or coupler 34 corresponding to antenna C3 can be turn-offed, so that coupler 34 corresponding to antenna C2 or antenna C3 no longer worked, and then make the first radiofrequency signal that antenna C2 or antenna C3 return no longer carry out Frequency mixing processing.
The time delay adjustment equipment that each embodiment provides above, by the radiofrequency signal that in transceiver, arbitrary transmission channel sends successively by one or any several function elements such as amplifier, the external filter in base station, combiner-dividers on the tower that may arrange between feeder line, feeder line and time delay adjustment equipment, and antenna sets is carried out mixing afterwards, the signal obtaining is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the signal sending time of transmission channel as benchmark, obtain at least time delay between two-way receive path.
Be understandable that, as the feasible execution mode of another kind, time delay adjustment equipment can also pass through feeder line successively by the radiofrequency signal that in transceiver, at least two-way transmission channel sends, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or arbitrarily several other function elements and antenna sets, carry out mixing, the at least two paths of signals obtaining is returned to the arbitrary road receive path in transceiver, thereby make time of reception that transceiver can receive Yi road signal taking receive path as benchmark, obtain at least time delay between two-way transmission channel.Accordingly, the present invention also provides time delay adjustment equipment another embodiment, and its structure can be shown in Figure 1, and this time delay adjustment equipment comprises: the first transmitting-receiving interface 1, the second transmitting-receiving interface 2 and radio frequency unit 3; Wherein:
First transmitting-receiving interface 1, can for transceiver communication;
The second transmitting-receiving interface 2, can be for communicating by letter with antenna sets;
Radio frequency unit 3, can be at least two-way the 3rd radiofrequency signal that in the transceiver that the first transmitting-receiving interface is received, at least two-way transmission channel sends, be coupled respectively to the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal that can return for the antenna sets that the second transmitting-receiving interface is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver by described the first transmitting-receiving interface respectively.
The present embodiment and difference embodiment illustrated in fig. 1 are, the first transmitting-receiving interface 1 can be from feeder line B, and amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, on one of combiner-divider etc. or any several other equipment (device), receive at least two-way the 3rd radiofrequency signal, wherein, each road the 3rd radiofrequency signal is penetrated passage from riches all the way in transceiver A, for each road the 3rd radiofrequency signal, radio frequency unit 3 is all coupled to the second transmitting-receiving interface 2, so that the 3rd radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface 2.Owing to can transmitting radiofrequency signal by electromagnetic wave between each antenna in antenna sets C, therefore, each road the 3rd radiofrequency signal is back to the second transmitting-receiving interface 2 after transmitting between different antennae in antenna sets.
The antenna sets that radio frequency unit 3 receives the second transmitting-receiving interface 2 is respectively returned to Mei road the 3rd radiofrequency signal and is carried out respectively mixing, obtain respectively the 4th radiofrequency signal corresponding to every road the 3rd radiofrequency signal, and will obtain Mei road the 4th radiofrequency signal and be coupled to the first transmitting-receiving interface 1, so that every road the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver A by the first transmitting-receiving interface 1 respectively.That is, You Ji road transmission channel transmitting the 3rd radiofrequency signal, radio frequency unit 3 will obtain several roads the 4th radiofrequency signal, and the 4th radiofrequency signal obtaining is returned to the arbitrary road receive path in transceiver A.Wherein, receive path can be and the transmission channel receive path of corresponding setting in pairs of transmitting the 3rd radiofrequency signal, can certainly be and other transmission channels receive path of corresponding setting in pairs.The receive frequency of the frequency of the 4th radiofrequency signal and transceiver A matches.
It should be noted that, in the time delay adjustment equipment that the present embodiment provides, at least two-way transmission channel can adopt time-multiplexed mode to launch respectively the 3rd radiofrequency signal; If only there is two-way transmission channel transmitting the 3rd radiofrequency signal, this two-way transmission channel also can be launched the 3rd relatively orthogonal radiofrequency signal of two-way.
Can find out, the 3rd radiofrequency signal that in transceiver A, at least two-way transmission channel sends respectively, pass through successively feeder line B, after each antenna on the tower that may arrange between feeder line B and time delay adjustment equipment in one of amplifier, the external filter in base station, combiner-divider etc. or any several functional unit (device), time delay adjustment equipment and antenna sets C, be back to time delay adjustment equipment, the 4th radiofrequency signal that the 3rd radiofrequency signal mixing of time delay adjustment equipment Jiang Mei road obtains returns to respectively the arbitrary road receive path in transceiver A.
Be same road receive path due to what receive two-way the 4th radiofrequency signal at least in transceiver A, therefore, the time of reception of arbitrary road the 4th radiofrequency signal that transceiver A can Yi Gai road receive path receives is benchmark, can obtain respectively at least time delay between the receive path of two-way transmission channel Zhong Mei road transmission channel Yu Gai road, can also obtain this road receive path and receive the time delay between the 4th radiofrequency signal of Ge road, thereby obtain at least time delay between two-way transmission channel, and then can two-way transmission channel at least be carried out delay correction the time delay based on obtaining.Time delay between at least two-way transmission channel that the time delay adjustment equipment providing due to the embodiment of the present invention obtains, can comprise the time delay of the feeder line B being connected with transceiver A, the time delay between the each antenna in time delay and the antenna sets C of time delay adjustment equipment itself; In addition, also may further comprise the time delay of one of amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, combiner-divider etc. or any several each and every one functional units (device), therefore, improve the accuracy of time delay between at least two-way transmission channel obtaining, thereby improve time delay adjustment precision, met the time delay error demand of closed-loop MIMO.
The time delay adjustment equipment that the present embodiment provides, the radiofrequency signal that in transceiver, at least two-way transmission channel sends is passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, each the radio frequency obtaining after mixing road signal is returned to respectively to the arbitrary road receive path in transceiver, thereby make time of reception that transceiver can receive Yi road radiofrequency signal taking receive path as benchmark, obtain at least time delay between two-way transmission channel, thereby improve the accuracy of at least two-way transmission channel time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
With embodiment illustrated in fig. 2 similar, it is benchmark that the embodiment of the present invention also provides Liao Yi arbitrary road radiofrequency signal that mono-road receive path receives, proofread and correct at least another embodiment of the time delay adjustment equipment of two-way transmission channel, the structural representation of this embodiment can be referring to Fig. 2, in this time delay adjustment equipment:
In the first transmitting-receiving interface 1, can comprise at least two first transmitting-receiving ports 11, each the first transmitting-receiving port 11 is corresponding with at least one pair of transmission channel and receive path in transceiver A;
Accordingly, in the second transmitting-receiving interface 2, can comprise at least two second transmitting-receiving ports 21, each the second transmitting-receiving port 21 is corresponding with an antenna in one first transmitting-receiving port 11 and antenna sets C respectively.; the number of the number of the first transmitting-receiving port 11 and the second transmitting-receiving port 21 equates with the antenna radical in antenna sets C respectively; one first transmitting-receiving port 11 can be corresponding with a pair of transmission channel and receive path, also can be corresponding with multipair transmission channel and receive path.The concrete structure embodiment that radio frequency unit 3 is also provided in the present embodiment, this radio frequency unit 3 can comprise: local frequency oscillator 31, mixing device 32 and at least two couplers 34; Wherein:
Local frequency oscillator 31, can be for generation of local oscillator radiofrequency signal, and local oscillator radiofrequency signal is sent to mixing device 32;
Mixing device 32, at least two-way the 3rd radiofrequency signal and the local oscillator radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface 2 is received are carried out respectively mixing, obtain at least two-way the 4th radiofrequency signal, and respectively two-way the 4th radiofrequency signal is at least sent to any at least two couplers 34;
Any at least two couplers 34 is corresponding with an antenna at least one pair of transmission channel and receive path and antenna sets C in transceiver A, can be for the 3rd radio frequency signal coupling to the second transmitting-receiving interface 2 that corresponding transmission channel is sent, so that the 3rd radiofrequency signal sends to corresponding antenna by the second transmitting-receiving interface 2, and the 3rd radio frequency signal coupling that can return for the corresponding antenna that the second transmitting-receiving interface 2 is received is to mixing device 32; The 4th radiofrequency signal that can also be used for mixing device 32 to obtain is coupled to the first transmitting-receiving interface 1, so that the 4th radiofrequency signal is sent to corresponding receive path by the first transmitting-receiving interface 1.
It should be noted that, implement in scene for one in the embodiment of the present invention, each the first transmitting-receiving port 11 is with at least one pair of transmission channel in transceiver A and receive path is corresponding refers to, for example: suppose to be provided with 2 pairs of transmission channels and receive path in the transceiver A shown in Fig. 1, be respectively: transmission channel 1 and receive path 1, transmission channel 2 and receive path 2., also Figure 2 shows that example, the first transmitting-receiving port 11a can be corresponding with transmission channel 1 and receive path 1, as the interface unit of transmission channel 1 and receive path 1 and time delay adjustment equipment; The first transmitting-receiving port 11b can be corresponding with transmission channel 2 and receive path 2, as the interface unit of transmission channel 2 and receive path 2 and time delay adjustment equipment.
Each the second transmitting-receiving port 21 respectively with corresponding referring to of antenna in one first transmitting-receiving port 11 and antenna sets C, for example: suppose that the antenna sets C shown in Fig. 1 comprises two antennas, be respectively antenna C1 and antenna C2, also can be corresponding with the first transmitting-receiving port 11a and antenna C1 respectively with the transmitting-receiving of second shown in Fig. 2 port 21a, when the first transmitting-receiving port 11a receives after the 3rd radiofrequency signal, radio frequency unit 3 can be by the 3rd radio frequency signal coupling to the second transmitting-receiving port 21a, make the second transmitting-receiving port 21a that the 3rd radiofrequency signal is sent to antenna C1, same, shown in Fig. 2 second transmitting-receiving port 21b can be corresponding with the first transmitting-receiving port 11b and antenna C2 respectively, when the first transmitting-receiving port 11b receives after the 3rd radiofrequency signal, radio frequency unit 3 can, by the 3rd radio frequency signal coupling to the second transmitting-receiving port 21b, make the second transmitting-receiving port 21b that the 3rd radiofrequency signal is sent to antenna C2.Because the first transmitting-receiving interface 1 may further include at least two first transmitting-receiving ports 11, and each the first transmitting-receiving port 11 is corresponding with at least one pair of transmission channel and receive path in transceiver A; The second transmitting-receiving interface 2 may further include at least two second transmitting-receiving ports 21, and each the second transmitting-receiving port 21 is corresponding with an antenna in one first transmitting-receiving port 11 and antenna sets C respectively.Therefore,, under the enforcement scene of the present embodiment, a coupler 34 can corresponding one first transmitting-receiving port 11 and one second transmitting-receiving port 21.For example: the 3rd radio frequency signal coupling that the coupler 34a shown in Fig. 2 can receive the first transmitting-receiving port 11a of correspondence is to the second corresponding transmitting-receiving port 21a, so that the 3rd radiofrequency signal is sent to corresponding antenna by the second transmitting-receiving port 21a, and the 3rd radio frequency signal coupling that coupler 34a can receive the second transmitting-receiving port 21a of correspondence is to mixing device 32.Further, the 4th radiofrequency signal that coupler 34 can also obtain mixing device 32 is coupled to the first transmitting-receiving port 11 that arbitrary receive path is corresponding, so that the 4th radiofrequency signal sends to receive path from the first transmitting-receiving port 11 corresponding to receive path.For example: the 4th radiofrequency signal that the coupler 34a shown in Fig. 2 can obtain mixing device 32 is coupled to the first corresponding transmitting-receiving port 11a, so that the 4th radiofrequency signal is sent to corresponding receive path 1 by the first transmitting-receiving port 11a.
The 4th radiofrequency signal obtaining due to the 3rd radiofrequency signal mixing of the present embodiment Shi Jiangmei road all sends to same road receive path, therefore, in the present embodiment, can not need the first power divider 33.
Still comprise 2 pairs of transmission channels and receive path with transceiver A: transmission channel 1 and receive path 1, and transmission channel 2 and receive path 2; Antenna sets C comprises 2 antennas: antenna C1 and antenna C2 are that example describes.Shown in Fig. 2 first transmitting-receiving interface 1 comprises two first transmitting-receiving ports 11, is respectively the first transmitting-receiving port 11a and the first transmitting-receiving port 11b; The second transmitting-receiving interface 2 comprises two second transmitting-receiving ports 21, is respectively the second transmitting-receiving port 21a and the second transmitting-receiving port 21b; Radio frequency unit 3 comprises two couplers 34, is respectively coupler 34a and coupler 34b.Wherein, transmission channel 1 and receive path 1 are corresponding with the first transmitting-receiving port 11a, the second transmitting-receiving port 21a, antenna C1 and coupler 34a respectively; Transmission channel 2 and receive path 2 are corresponding with the first transmitting-receiving port 11b, the second transmitting-receiving port 21b, antenna C2 and coupler 34b respectively.
Transmission channel 1 in transceiver A sends the 3rd radiofrequency signal through feeder line B, amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several function device (device), received by the first transmitting-receiving port 11a, coupler 34a is by the 3rd radio frequency signal coupling to the second transmitting-receiving port 21a, so that the 3rd radiofrequency signal sends to antenna C1 by the second transmitting-receiving port 21a, antenna C2 can receive by electromagnetic wave the 3rd radiofrequency signal that antenna C1 sends, the 3rd radiofrequency signal is returned to the second transmitting-receiving port 21b by antenna C2, the 3rd radio frequency signal coupling that coupler 34b returns to this second transmitting-receiving port 21b is to mixing device 32, the local oscillator radiofrequency signal that mixing device 32 produces the 3rd radiofrequency signal and local frequency oscillator 31 is carried out mixing, obtain the 4th radiofrequency signal (in the frequency of the 4th radiofrequency signal and transceiver A, the receive frequency of duplexer matches), the 4th radiofrequency signal is coupled to the first transmitting-receiving port 11a by coupler 34a, so that the 4th radiofrequency signal is sent to corresponding receive path 1 by the first transmitting-receiving port 11a.Similarly, after the 3rd radiofrequency signal that transmission channel 2 sends is received by the first transmitting-receiving port 11b, be coupled device 34b and be coupled to the second transmitting-receiving port 21b, and send to antenna C2 by the second transmitting-receiving port 21b, antenna C1 returns to the second transmitting-receiving port 21a by this radiofrequency signal after receiving the 3rd radiofrequency signal, the 3rd radiofrequency signal is sent to mixing device 32 by coupler 34a carries out after mixing, the 4th radiofrequency signal obtaining is coupled to the first transmitting-receiving port 11a by coupler 34a, so that the 4th radiofrequency signal is sent to corresponding receive path 1 by the first transmitting-receiving port 11a.
Figure 2 shows that the situation that the output of mixing device 32 is connected with coupler 34a, be that mixing device 32 will obtain Mei road the 4th radiofrequency signal and all send to coupler 34a, so that coupler 34aJiang Mei road the 4th radiofrequency signal is all coupled to the first transmitting-receiving port 11a, so that every road the 4th radiofrequency signal all sends to receive path 1 by the first transmitting-receiving port 11a, thereby the time of reception of realizing arbitrary road the 4th radiofrequency signal that transceiver A receives taking receive path 1 is benchmark, the time delay between correct transmission passage 1 and transmission channel 2; As the feasible embodiment of another kind, the output of mixing device 32 can also be connected with coupler 34b, under this enforcement scene, coupler 34b can Jiang Mei road the 4th radiofrequency signal be coupled to the first transmitting-receiving port 11b, so that every road the 4th radiofrequency signal all sends to receive path 2 by the first transmitting-receiving port 11b, thereby the time of reception of realizing arbitrary road the 4th radiofrequency signal receiving taking receive path 2 is benchmark, the time delay between correct transmission passage 1 and transmission channel 2.
Receive path 1 receives respectively after the 4th radiofrequency signal corresponding to the 3rd radiofrequency signal that the 4th radiofrequency signal corresponding to the 3rd radiofrequency signal that transmission channel 1 launches and transmission channel 2 launch, transceiver A can obtain respectively the time delay between transmission channel 1 and receive path 1, and time delay between transmission channel 2 and receive path 1, can also obtain the time delay between two-way the 4th radiofrequency signal that receive path 1 receives, the time of reception of arbitrary road the 4th radiofrequency signal that transceiver A can receive taking receive path 1 is benchmark, obtain the time delay between transmission channel 1 and transmission channel 2, and then can transmission channel 1 and transmission channel 2 be carried out delay correction the time delay based on obtaining.
Due to certain port in the second transmitting-receiving interface 2, for example: the second transmitting-receiving port 21a sends after the 3rd radiofrequency signal to respective antenna C1, the 3rd radiofrequency signal also may have part to turn back to this second transmitting-receiving port 21a, and enter in mixing device 32 by coupler 34a, thereby when carrying out mixing, the 3rd radiofrequency signal that the antenna C2 the second transmitting-receiving port 21b being received at frequency mixer 32 returns brings interference signal, accordingly, implement under scene at the another kind of the present embodiment, if at least two-way transmission channel in transceiver A adopts time division multiplexing mode to send the 3rd radiofrequency signal, between any two couplers 34, the second power divider 35 can be further set, between the second power divider 35 and each coupler 34, can be provided with the first switching device 36, each the first switching device can be corresponding with matched load 37, the second power divider 35 can be connected with mixing device 32,
Wherein, when any one coupler in two couplers 34 is connected with the second power divider 35 by the first switching device 36, another coupler connects with corresponding matched load 37 by the first switching device 36, so that the 3rd radiofrequency signal that in two couplers 34, the antenna of coupler 34 correspondences returns arrives mixing device 32 by the second power divider 35, the 3rd radiofrequency signal that the antenna of another coupler 34 correspondences returns is absorbed by matched load 37.
As shown in Figure 2, can be provided with between the second power divider 35, the second power dividers 35 and coupler 34a and can be provided with the first switching device 36a between coupler 34a and coupler 34b, this first switching device 36a is also corresponding with a matched load 37a; Equally, be provided with the first switching device 36b between the second power divider 35 and coupler 34b, this first switching device 36b is also corresponding with a matched load 37b.In addition, the second power divider 35 is also connected with mixing device 32.
In the time that transmission channel 1 sends the 3rd radiofrequency signal to time delay adjustment equipment, the first switching device 36a can be connected with matched load 37a, this matched load 37a, for absorbing the 3rd radiofrequency signal that antenna C1 returns, prevents that the 3rd radiofrequency signal from entering mixing device 32 by the second power divider 35; The first switching device 36b is connected with the second power divider 35, thereby the 3rd radiofrequency signal that makes antenna C2 return to the second transmitting-receiving port 21b enters mixing device 32 by the second power divider 35.
In the time that transmission channel 2 sends the 3rd radiofrequency signal to time delay adjustment equipment, the first switching device 36a and the second power divider 35 can be connected, the first switching device 36b and matched load 37b connect, thereby the 3rd radiofrequency signal that antenna C1 returns from the second transmitting-receiving port 21a arrives mixing device 32 by the second power divider 35.
In another enforcement scene of the present embodiment, between the second power divider 35 and mixing device 32, second switch device 38 can be further set, this second switch device 38 is also corresponding with a mismatch load 39;
When mixing device 32 is connected with the second power divider 35 by second switch device 38, the 3rd radiofrequency signal is sent to mixing device 32 by the second power divider 35; Connect by second switch device 38 and mismatch load 39 when mixing device 32, mismatch load 39 can be for making the 4th radiofrequency signal that 32 mixing of mixing device obtain enter coupler 34.
For example: the coupler 34a shown in Fig. 2 is connected with the second power divider 35 by the first switching device 36a, first mixing device 32 can be connected with the second power divider 35 by second switch device 38, to receive the 3rd radiofrequency signal from coupler 34a.Treat that mixing device 32 carries out after mixing obtains the 4th radiofrequency signal the 3rd radiofrequency signal, mixing device 32 can be connected by second switch device 38 and mismatch load 39, because the effect of reflected signal is played in mismatch load 39, therefore the 4th radiofrequency signal that, mismatch load 39 can obtain 32 mixing of mixing device can fully enter coupler 34a.
On the basis of the various embodiments described above, the time delay adjustment equipment that the embodiment of the present invention provides, can startup work under the triggering of transceiver A.Fig. 3 is the structural representation of another embodiment of time delay adjustment equipment provided by the invention, and on the basis of above-mentioned time delay adjustment apparatus embodiments, in the present embodiment, time delay adjustment equipment can further include: receiving interface 4 and digital processing element 5; Wherein:
Receiving interface 4, the power supply that can export for receiving transceiver A, and receive wake command or the starting command that transceiver A sends;
Digital processing element 5, can be for receiving the power supply of transceiver output by receiving interface 4; The wake command receiving according to receiving interface 4, switches to normal mode of operation from energy-saving mode, controls radio frequency unit 3 and receives the power supply of transceiver A output by digital processing element 5, and control radio frequency unit 3 and switch to normal mode of operation from energy-saving mode; The starting command receiving according to receiving interface 4, starts respectively the first transmitting-receiving interface 1, the second transmitting-receiving interface 2 and radio frequency unit 3.
Wherein, receiving interface 4 is in time delay adjustment equipment, the interface that digital processing element 5 is connected with transceiver A, this interface is implemented can follow air interface standardization tissue (Antenna Interface Standards Group, AISG) agreement under scene in one.If be also connected with one or any several function devices (device) such as amplifier on tower, the external filter in base station, combiner-divider between feeder line B and time delay adjustment equipment, transceiver A can also be by these function devices (device) to time delay adjustment equipment transparent transmission wake command and starting command.In addition, it should be noted that, the receiving interface 4 in time delay adjustment equipment can be connected on the power supply unit of transceiver A by power line, thereby receives the power supply of the upper power supply unit output of transceiver A.If be also connected with amplifier on tower between feeder line B and time delay adjustment equipment, the external filter in base station, one of combiner-divider etc. or any several function device (device), the receiving interface 4 in time delay adjustment equipment also can be connected to amplifier on tower by power line, the external filter in base station, on the power supply interface of the function devices such as combiner-divider (device) (power supply interface of these equipment also can be connected on the power supply unit of transceiver A by power line), thereby the receiving interface 4 of realizing in time delay adjustment equipment can be by amplifier on the tower arranging between feeder line B and time delay adjustment equipment, the function devices (device) such as the external filter in base station or combiner-divider receive the power supply of transceiver A output.
Digital processing element 5 can be for being micro-control unit (Micro Control Unit, MCU), FPGA (Field Programmable Gate Array) (for example: field programmable gate array (Field-Programmable Gate Array, FPGA) or erasable Programmadle logic device (Erasable Programmable Logic Device, EPLD)) etc. there is the device of digital processing function.
As shown in Figure 3, in the time delay adjustment equipment that the present embodiment provides, receiving interface 4, as the power interface between digital processing element 5 and transceiver A, is connected (in Fig. 3, power line and holding wire are all with a1 mark) by power line and holding wire between receiving interface 4 and transceiver A; Between digital processing element 5 and receiving interface 4, be connected (power line and holding wire are all with a2 mark) by power line and holding wire; Between digital processing element 5 and radio frequency unit 3, be connected (power line and holding wire are all with a3 mark) by power line and holding wire; Between digital processing element 5 and the first transmitting-receiving interface 1, identify by holding wire a4; Between digital processing element 5 and the second transmitting-receiving interface 2, identify by holding wire a5.
Receiving interface 4 receives after the wake command from transceiver A by holding wire a1, receiving interface 4 by holding wire a2 by this command transfer to digital processing element 5, digital processing element 5 can, according to wake command, switch to normal mode of operation from energy-saving mode; Digital processing element 5 can also make radio frequency unit 3 receive the power supply of transceiver output by power line a3, and switches to normal mode of operation by holding wire a3 control radio frequency unit 3 from energy-saving mode.When receiving interface 4 receives after the starting command from transceiver A, digital processing element 5 can be according to this starting command, start the first transmitting-receiving interface 1 by holding wire a4 and start to receive the first radiofrequency signal or the 3rd radiofrequency signal that transceiver A sends, start the second transmitting-receiving interface 2 by holding wire a5 and start working, start radio frequency unit 3 by holding wire a3 and start working.
Implement under scene at one of the present embodiment, this time delay adjustment equipment can also comprise subtending port 6, the control command sending for receiving transceiver A, and control command is passed through and the next stage cascade device of time delay adjustment equipment connection.Wherein, next stage cascade device can be that tower is put equipment or the devices such as (Tower Mounted Amplifier, TMA), Remote Control Unit (Remote Control Unit, RCU) or antenna sets.For example: be under the tower enforcement scene of putting at next stage cascade device, the control command that transceiver A sends can be electricity mediation control command, this electricity is in harmonious proportion control command and can sends to the electricity of tower in putting to be in harmonious proportion control interface, is used to indicate operations such as adjusting the filter parameter of tower in putting; Be under the enforcement scene of antenna sets at next stage cascade device, the control command that transceiver A sends can send to the signaling interface in antenna sets, and this control command can be used to indicate the angle of declination of adjusting antenna in antenna sets.Other are implemented scene and do not enumerate.
It should be noted that, between feeder line B and time delay adjustment equipment, be provided with under the enforcement scene that tower puts, the electricity of tower in putting is in harmonious proportion control interface and also can be directly connected with transceiver A, but can be connected with the receiving interface 4 in time delay adjustment equipment, thereby the control command sending by the receiving interface 4 transparent transmission transceiver A in time delay adjustment equipment, therefore,, under this enforcement scene, tower is put and also be can be regarded as the next stage cascade device that time delay calibration equipment connects.
Subtending port 6 can be used as the interface of transparent transmission between time delay adjustment equipment and next stage cascade device or message transfer.As a kind of feasible execution mode, subtending port 6 can be connected with the order output terminal mouth in transceiver A, to realize after the control command that receives transceiver A transmission, directly passes through next stage cascade device, if be also connected with amplifier on tower between feeder line B and time delay adjustment equipment, the external filter in base station, one of combiner-divider etc. or any several function device (device), subtending port 6 can also be connected with the order output terminal mouth of these function devices (device), for example: put control interface with the electricity mediation tower of amplifier on tower and be connected, the control command that the order output terminal mouth of these function devices (device) can send transceiver A passes through the subtending port 6 of time delay adjustment equipment, so that the subtending port 6 of time delay adjustment equipment is by the control command transparent transmission next stage cascade device of receiving.
As the feasible execution mode of another kind, subtending port 6 can also be connected with the digital processing element 5 in time delay adjustment equipment, digital processing element 5 receives the control command that transceiver A sends, or amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, after the control command of one or more function devices such as combiner-divider (device) transparent transmission, can first judge whether this control command needs to pass through next stage cascade device, if needed, this control command is passed through to next stage cascade device by subtending port 6.
With reference to the realization of previous embodiment, the embodiment of the present invention also provides a kind of feasible structure of digital processing element, and as shown in Figure 4, digital processing element 5 can comprise: power conversion module 51, energy supply control module 52 and processing module 53; Wherein:
Power conversion module 51, can convert for the supply voltage of the transceiver A output to receiving by receiving interface 4, so that the supply voltage after conversion mates with time delay adjustment equipment;
Energy supply control module 52, can, under the control in processing module 53, export to radio frequency unit 3 by the supply voltage of the transceiver A output after power conversion module 51 converts;
Processing module 53, can be for the wake command receiving according to receiving interface 4, switch to normal mode of operation from energy-saving mode, control energy supply control module 52 supply voltage of the transceiver A output after power conversion module 51 converts is exported to radio frequency unit 3, and control radio frequency unit 3 and switch to normal mode of operation from energy-saving mode; The starting command receiving according to receiving interface, to radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in radio frequency unit 3; The local oscillator radio frequency signal frequency that can also be used for radio frequency unit 3 to carry out mixing for the 3rd radiofrequency signal is configured, so that the frequency of the 4th radiofrequency signal and at least receive frequency of two-way receive path match.
Figure 5 shows that the transmission of the signal between each module schematic diagram in digital processing element, as shown in Figure 5, in digital processing element 5, by power line b1 power taking from receiving interface 4, the power supply obtaining from power line b1 need to carry out supply voltage conversion through power conversion module 51, export to processing module 53 by power line b9 again, so that the supply voltage after conversion and the processing module 53 in time delay adjustment equipment match.When after wake command or starting command that the transceiver A that receiving interface 4 receives sends, by holding wire b2, this wake command or starting command are transferred to processing module 53.Processing module 53 is controlled energy supply control module 52 by holding wire b6, by the supply voltage after power conversion module 51 converts obtaining from power line b5, export to radio frequency unit 3 by power line b9, so that the supply voltage after conversion and the radio frequency unit 3 in time delay adjustment equipment match.Processing module 53 can also, by holding wire b7 to radio frequency unit 3 output switch control commands, be connected to respective devices execution corresponding operating with each switching device of controlling in radio frequency unit 3.Processing module 53 can also be exported configuration signal to radio frequency unit 3 by holding wire b8, so that the local oscillator radio frequency signal frequency of carrying out mixing for the 3rd radiofrequency signal is configured, so that the frequency of the 4th radiofrequency signal and at least receive frequency of two-way receive path match.
In addition, when after the control command that the transceiver A that receiving interface 4 receives sends, can be by power line b3 to subtending port 6 out-put supplies, so that subtending port 6 can transparent transmission control command.Receiving interface 4 can also be transferred to processing module 53 by holding wire b2 by control command, processing module 53 can judge whether this control command needs to pass through next stage cascade device, if needed, processing module 53 can be sent to subtending port 6 by this control command by holding wire b4, so that this control command is passed through next stage cascade device by subtending port.
The time delay adjustment equipment providing with reference to the aforementioned embodiment of the present invention and the realization of function thereof, Figure 6 shows that and as shown in Figure 6, specifically comprise the following steps the flow chart of an embodiment of the processing module executive control operation in digital processing element:
S601, control radio frequency unit power on ready;
S602, complete init state configuration;
Specifically comprise: to operations such as the local oscillator radio frequency signal frequency that in radio frequency unit 3, local frequency oscillator 31 produces are configured.
S603, processing module enter the energy-saving mode of wake-up waiting order or starting command;
S604, having judged whether scanning, is to carry out S605, carries out S603 otherwise return;
Wherein, processing module can scan the port that receives order at set intervals, and whether the port that receives order to monitor receives wake command or starting command.
S605, processing module configuration radio frequency unit, power conversion module and energy supply control module enter energy-saving mode;
S606, processing module are obtained wake command, control power conversion module, energy supply control module and processing module and switch to normal mode of operation from energy-saving mode, and control energy supply control module and will export to radio frequency unit through the supply voltage of the transceiver output after power conversion module conversion, and control radio frequency unit and switch to normal mode of operation from energy-saving mode;
S607, processing module are obtained the starting command that transceiver sends;
S608, according to starting command, to radio frequency unit output switch control command, be connected to respective devices and carry out corresponding operating to control each switching device in radio frequency unit;
Other orders of S609, wait transceiver, start timer;
S610, judging whether to receive the order that completes that transceiver sends, is to carry out S605, carries out S611 otherwise return;
S611, judge whether to meet timing condition, be, return and carry out S605, carry out S609 otherwise return.
With reference to the realization of previous embodiment, as shown in Figure 7 and Figure 8, Fig. 7 is the structural representation of an embodiment of time delay adjustment system provided by the invention, and Fig. 8 is the structural representation of another embodiment of time delay adjustment system provided by the invention.As shown in Figure 7 and Figure 8, this system comprises: transceiver A and antenna sets C, be provided with time delay adjustment equipment D between transceiver A and antenna sets C;
Time delay adjustment equipment D comprises: the first transmitting-receiving interface, the second transmitting-receiving interface and radio frequency unit;
First transmitting-receiving interface, can for transceiver communication;
The second transmitting-receiving interface, can be for communicating by letter with antenna sets;
As a kind of feasible execution mode, radio frequency unit, can, for the first radiofrequency signal that in the transceiver A that the first transmitting-receiving interface is received, arbitrary road transmission channel sends, be coupled to the second transmitting-receiving interface, so that the first radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface; And the first radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to the first transmitting-receiving interface, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver A by the first transmitting-receiving interface.Transceiver A antenna sets C antenna sets C transceiver A transceiver A.
As the feasible execution mode of another kind, radio frequency unit can also be used for: the transceiver A that the first transmitting-receiving interface is received at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, be coupled respectively to the second transmitting-receiving interface, so that at least two-way the 3rd radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to the first transmitting-receiving interface, so that at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path transceiver A antenna sets C antenna sets C transceiver A transceiver A in transceiver A by the first transmitting-receiving interface respectively.
Baseband processing unit shown in Fig. 7 and Fig. 8 (Base band Unit, BBU) for transceiver is configured, for example: the frequency of each transmission channel or receive path in configuration transceiver, and instruction transceiver uses which passage etc.
Implement under scene for one at the present embodiment, in the time delay adjustment system that the embodiment of the present invention provides, time delay adjustment equipment D can be arranged between the feeder line B and antenna sets C being connected with transceiver A.
Implement under scene at another of the present embodiment, between the feeder line B being connected with transceiver A and time delay adjustment equipment D, can also be connected with a kind of in following equipment or arbitrarily several types combine: tower is put, the external filter in base station and combiner-divider.Figure 7 shows that the situation that time delay adjustment equipment D independently arranges, under other enforcement scenes of the present embodiment, at least one the integration of equipments setting connecting between the feeder line B that time delay adjustment equipment D can also and be connected with transceiver A and time delay adjustment equipment D.These equipment can be that tower is put, the external filter in base station or combiner-divider etc.
Figure 8 shows that time delay adjustment equipment D and tower put the situation that integrates setting.Wherein, the electricity of tower in putting is in harmonious proportion tower, and to put control interface be during tower is put, and receives the interface of the control command that previous stage cascade device that transceiver A or tower put sends.Implement under scene for one in the embodiment of the present invention, the electricity of tower in putting is in harmonious proportion the subtending port that tower puts optional setting in the time delay adjustment equipment that control interface can provide with the embodiment of the present invention and is connected, the control command that the previous stage cascade device that the electricity mediation control interface of tower in putting can be put to subtending port transparent transmission transceiver A or tower sends.
Transceiver A can adopt existing many middle methods, for example: and to carrying out appropriate amplitude error (Error Vector Magnitude, EVM) calculate at least time delay between two-way transmission channel, or the time delay between two-way receive path at least.
The concrete structure of time delay adjustment equipment D and function can, referring to time delay adjustment apparatus embodiments provided by the invention, not repeat them here.
The time delay adjustment system that the present embodiment provides, time delay adjustment equipment, the device such as mixer of amplifier or integrated time delay adjustment equipment on the tower of integrated time delay adjustment equipment, the radiofrequency signal that in transceiver, arbitrary transmission channel sends can be passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.Or, time delay adjustment equipment, the device such as mixer of amplifier or integrated time delay adjustment equipment on the tower of integrated time delay adjustment equipment, the radiofrequency signal that in transceiver, at least two-way transmission channel sends can also be passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, the external filter in base station, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, each the radio frequency obtaining after mixing road signal is returned to respectively to the arbitrary road receive path in transceiver, thereby make time of reception that transceiver can receive Yi road radiofrequency signal taking receive path as benchmark, obtain at least time delay between two-way transmission channel, thereby improve the accuracy of at least two-way transmission channel time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
At least one the integration of equipments setting connecting between the feeder line B can and being connected with transceiver A based on time delay adjustment equipment D and time delay adjustment equipment D, the present invention also further provides the embodiment of amplifier on a kind of tower, the time delay adjustment equipment disclosing with reference to previous embodiment and the realization of function thereof, as shown in Figure 9, on this tower, amplifier can comprise: at least one bank of filters E and time delay adjustment equipment D, time delay adjustment equipment D is connected with at least one bank of filters E.
Wherein: time delay adjustment equipment D can comprise: the first transmitting-receiving interface 1, the second transmitting-receiving interface 2 and radio frequency unit 3;
First transmitting-receiving interface 1, can for transceiver communication;
The second transmitting-receiving interface 2, can be for communicating by letter with antenna sets;
As a kind of feasible execution mode, radio frequency unit 3, first radiofrequency signal that can send for arbitrary road transmission channel in the transceiver A that the first transmitting-receiving interface 1 is received, is coupled to the second transmitting-receiving interface 2, so that the first radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface; And the first radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to the first transmitting-receiving interface, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver A by the first transmitting-receiving interface.
As the feasible execution mode of another kind, radio frequency unit 3 can also be used for: the transceiver A that the first transmitting-receiving interface 1 is received at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, be coupled respectively to the second transmitting-receiving interface 2, so that at least two-way the 3rd radiofrequency signal sends to antenna sets C by the second transmitting-receiving interface 2 respectively; And at least two-way the 3rd radiofrequency signal that can return for the antenna sets C that the second transmitting-receiving interface 2 is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to the first transmitting-receiving interface 1, so that at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver A by the first transmitting-receiving interface respectively.
It should be noted that, Figure 9 shows that amplifier on tower comprises the scene of two groups of bank of filters E, under this scene, in the first transmitting-receiving interface 1, can comprise the first transmitting-receiving port 11a and the first transmitting-receiving port 11b, , every group of bank of filters E can with transceiver A in a pair of transmission channel and receive path, and one first transmitting-receiving port is corresponding, for example: the bank of filters E1 shown in Fig. 9 can pass through the first transmitting-receiving port 11a for the radiofrequency signal that the transmission channel shown in Fig. 81 is sent, bank of filters E2 can pass through the first transmitting-receiving port 11b for the radiofrequency signal that transmission channel 2 is sent.
As a kind of feasible execution mode, the time delay adjustment equipment that on the tower that the embodiment of the present invention provides, amplifier can provide with the embodiment of the present invention by amplifier on existing tower is directly connected to realize, specifically can be referring to the connected mode of amplifier time delay adjustment equipment on tower in Fig. 7.Under this enforcement scene, on the tower that the present embodiment provides, in amplifier, retain the complete structure of the complete structure of amplifier on existing tower and the time delay adjustment equipment that the embodiment of the present invention provides.
But as another kind of feasible execution mode, after integrated time delay adjustment equipment on amplifier on tower, bank of filters E and time delay adjustment equipment D are as one generally speaking, between bank of filters E and radio frequency unit 3, the first transmitting-receiving interface 1 can be no longer set, under this enforcement scene, the first transmitting-receiving interface 1 can be used as the interface unit between amplifier and transceiver A on the tower that bank of filters E and time delay adjustment equipment forms., the first transmitting-receiving interface 1 can be arranged between transceiver A and at least one bank of filters E.Thereby implement under scene at one of the present embodiment, at least one bank of filters E can by time first receive and dispatch interface 1 and receive the first radiofrequency signal sending from arbitrary road transmission channel in transceiver A, and the first radiofrequency signal is passed through to radio frequency unit 3; And the second radiofrequency signal can received RF unit 3 sending, and the second radiofrequency signal is passed through to the first transmitting-receiving interface 1, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver A by the first transmitting-receiving interface 1.
Under another enforcement scene of the present embodiment, at least one bank of filters E can receive from least two-way the 3rd radiofrequency signal that in transceiver A, at least two-way transmission channel sends by the first transmitting-receiving interface 1, and the 3rd radiofrequency signal is passed through respectively to radio frequency unit 3; And at least two-way the 4th radiofrequency signal sending for received RF unit 3, and at least two-way the 4th radiofrequency signal passes through respectively the first transmitting-receiving interface 1, so that at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver A by the first transmitting-receiving interface 1 respectively.
Be understandable that, as another feasible execution mode, bank of filters E and time delay adjustment equipment as one generally speaking, the interface between itself and transceiver A can multiplexing existing tower on interface in amplifier and between transceiver A.Under this enforcement scene, in time delay adjustment equipment D, the first transmitting-receiving interface 1 can be set, but by bank of filters E being received to the radiofrequency signal of transceiver A transmitting, and send radiofrequency signal by bank of filters E to transceiver A.
On tower provided by the invention in the another kind of embodiment of amplifier, as shown in figure 10, on tower, amplifier can also comprise: electricity mediation control interface F, wake command or starting command that this interface can send for receiving transceiver A, and wake command or starting command are passed through to the receiving interface 4 in time delay adjustment equipment D.
Implement under scene at another kind, electricity mediation control interface F can also be used for: receive the control command that transceiver A sends, and this control command is passed through to the subtending port 6 of time delay adjustment equipment D.
Wherein, in transceiver A except transmission channel and this basic structure of receive path; conventionally be also provided with the parts such as control unit or processing unit; can be for sending wake command, starting command or control command etc. to each equipment being connected with transceiver A; electricity mediation control interface F on tower in amplifier can be connected (not shown) with the control unit or the processing unit that issue various command in transceiver A, receives the wake command, starting command or the control command that issue from transceiver A.Similar with the subtending port 6 in time delay adjustment equipment D, the electricity mediation control interface F on tower in amplifier also can follow AISG agreement.
It should be noted that, on tower provided by the invention in the embodiment of amplifier, omit the functional description of other in amplifier concrete structure on tower or parts, only provide the component representation relevant to time delay adjustment equipment D, but this does not affect the realization of other normal functions of amplifier on tower provided by the invention.In addition, other concrete structures of time delay adjustment equipment D and function can, referring to time delay adjustment apparatus embodiments provided by the invention, not repeat them here.
Amplifier on the tower that the present embodiment provides, the radiofrequency signal that in transceiver, arbitrary transmission channel sends can be passed through to feeder line successively, the external filter in base station that may arrange between feeder line and time delay adjustment equipment, after one of combiner-divider etc. or any several functional unit (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
At least one the integration of equipments setting connecting between the feeder line can and being connected with transceiver based on time delay adjustment equipment and time delay adjustment equipment, the time delay adjustment equipment disclosing with reference to previous embodiment and the realization of function thereof, the present invention also further provides a kind of embodiment of mixer, this mixer can comprise: at least one filter and time delay adjustment equipment, time delay adjustment equipment is connected with at least one filter.
Wherein: time delay adjustment equipment can comprise: the first transmitting-receiving interface, the second transmitting-receiving interface and radio frequency unit;
First transmitting-receiving interface, can for transceiver communication;
The second transmitting-receiving interface, can be for communicating by letter with antenna sets;
As a kind of feasible execution mode, radio frequency unit, can, for the first radiofrequency signal that in the transceiver that the first transmitting-receiving interface is received, arbitrary road transmission channel sends, be coupled to the second transmitting-receiving interface, so that the first radiofrequency signal sends to antenna sets by the second transmitting-receiving interface; And the first radiofrequency signal that can return for the antenna sets that the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to the first transmitting-receiving interface, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver by the first transmitting-receiving interface.
As the feasible execution mode of another kind, radio frequency unit can also be used for: the transceiver that the first transmitting-receiving interface is received at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, be coupled respectively to the second transmitting-receiving interface, so that at least two-way the 3rd radiofrequency signal sends to antenna sets by the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal that can return for the antenna sets that the second transmitting-receiving interface is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to the first transmitting-receiving interface, so that at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver A by the first transmitting-receiving interface respectively.
As a kind of feasible execution mode, the time delay adjustment equipment that the mixer that the embodiment of the present invention provides can provide with the embodiment of the present invention by existing mixer is directly connected to realize, under this enforcement scene, in the mixer that the present embodiment provides, retain the complete structure of the complete structure of existing mixer and the time delay adjustment equipment that the embodiment of the present invention provides.
But as another kind of feasible execution mode, after integrated time delay adjustment equipment on mixer, at least one filter and time delay adjustment equipment are as one generally speaking, between at least one filter and radio frequency unit, the first transmitting-receiving interface can be no longer set, under this enforcement scene, the first transmitting-receiving interface can be used as the interface unit between amplifier and transceiver on the tower that at least one filter and time delay adjustment equipment forms., the first transmitting-receiving interface can be arranged between transceiver and at least one filter.Thereby one at the present embodiment is implemented under scene, at least one filter can receive the first radiofrequency signal that in transceiver, arbitrary road transmission channel sends by the first transmitting-receiving interface, and the first radiofrequency signal is passed through to radio frequency unit; And the second radiofrequency signal can received RF unit sending, and the second radiofrequency signal is passed through to the first transmitting-receiving interface, so that the second radiofrequency signal sends to respectively at least two-way receive path in transceiver by the first transmitting-receiving interface.
Under another enforcement scene of the present embodiment, at least one filter can receive at least two-way the 3rd radiofrequency signal that in transceiver, at least two-way transmission channel sends by the first transmitting-receiving interface, and the 3rd radiofrequency signal is passed through respectively to radio frequency unit; And at least two-way the 4th radiofrequency signal sending for received RF unit, and at least two-way the 4th radiofrequency signal passes through respectively the first transmitting-receiving interface, so that at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in transceiver by the first transmitting-receiving interface respectively.
Be understandable that, as another feasible execution mode, at least one filter and time delay adjustment equipment as one generally speaking, the interface between itself and transceiver can multiplexing existing mixer in and interface between transceiver.Under this enforcement scene, in time delay adjustment equipment, the first transmitting-receiving interface can be set, but by least one filter being received to the radiofrequency signal of transceiver transmit, and send radiofrequency signal by least one filter to transceiver.
It should be noted that, in the embodiment of mixer provided by the invention, omit other concrete structures in mixer or the functional description of parts, only provide and the device-dependent component representation of time delay adjustment, but this has not affected the realization of other normal functions of mixer provided by the invention.In addition, other concrete structures of time delay adjustment equipment and function can, referring to time delay adjustment apparatus embodiments provided by the invention, not repeat them here.
The mixer that the present embodiment provides, the radiofrequency signal that in transceiver, arbitrary transmission channel sends can be passed through to feeder line successively, amplifier on the tower that may arrange between feeder line and time delay adjustment equipment, after one, the external filter in base station etc. or any several functional unit (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
With reference to the technical scheme of previous embodiment, corresponding, Figure 11 is the flow chart of an embodiment of time delay adjustment method provided by the invention, as shown in figure 11, comprising:
The first radiofrequency signal that S101, time delay adjustment equipment send arbitrary road transmission channel in the transceiver of reception sends to antenna sets.
The first radiofrequency signal that S102, time delay adjustment equipment return antenna sets is carried out mixing, obtains the second radiofrequency signal.
The second radiofrequency signal is sent to respectively at least two-way receive path in transceiver by S103, time delay adjustment equipment.
At least two-way receive path in transceiver receives respectively after the second radiofrequency signal of time delay adjustment equipment transmission, transceiver can be launched according to arbitrary road transmission channel the transmitting time of the first radiofrequency signal to time delay adjustment equipment, and the time of reception of the second radiofrequency signal of the time delay adjustment equipment that at least two-way receive path receives respectively transmission, determine at least time delay between two-way receive path.Transceiver can be according to the time delay between two-way receive path at least, and two-way receive path is at least proofreaied and correct.
Implement under scene in the one of the embodiment of the present invention, time delay adjustment equipment can start time delay adjustment under the triggering of transceiver, can be specifically: time delay adjustment equipment receives the wake command from transceiver output, switches to normal mode of operation from energy-saving mode; Time delay adjustment equipment receives the starting command of transceiver output, starts and receives the first radiofrequency signal sending from arbitrary road transmission channel in transceiver.
Implement under scene at another kind, time delay adjustment equipment can also be configured the local oscillator radio frequency signal frequency of carrying out mixing for the first radiofrequency signal, so that the frequency of the second radiofrequency signal and at least receive frequency of two-way receive path match.
The time delay adjustment method that the present embodiment provides, its specific implementation process can, referring to the description of time delay adjustment apparatus embodiments provided by the invention, not repeat them here.
The time delay adjustment method that the present embodiment provides, be arranged on the time delay adjustment look meeting quilt between feeder line and the antenna sets being connected with transceiver, the radiofrequency signal that in transceiver, arbitrary transmission channel sends is passed through to feeder line successively, amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, after one or more functional units such as combiner-divider (device) and antenna sets, carry out mixing, the radiofrequency signal obtaining after mixing is returned to at least two-way receive path in transceiver, thereby make the transceiver can be taking the radiofrequency signal transmitting time of transmission channel as benchmark, obtain at least time delay between two-way receive path, thereby improve the accuracy of at least two-way receive path time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
With reference to the technical scheme of previous embodiment, Figure 12 is the flow chart of another embodiment of time delay adjustment method provided by the invention, as shown in figure 12, comprising:
The 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets by S201, time delay adjustment equipment.
At least two-way the 3rd radiofrequency signal that S202, time delay adjustment equipment return antenna sets is carried out mixing, obtains respectively at least two-way the 4th radiofrequency signal.
S203, time delay adjustment equipment are incited somebody to action respectively at least two-way the 4th radiofrequency signal and are sent to respectively arbitrary road receive path in transceiver.
After arbitrary road receive path in transceiver receives at least two-way the 4th radiofrequency signal of time delay adjustment equipment transmission, transceiver can send respectively according to two-way transmission channel at least the transmitting time of the 3rd radiofrequency signal to time delay adjustment equipment, and arbitrary road receive path receives respectively time delay adjustment equipment and send the time of reception of the 4th radiofrequency signal that obtains of Mei road the 3rd radiofrequency signal mixing, determine at least time delay between two-way transmission channel; Further, transceiver can also be according to the time delay between two-way transmission channel at least, and two-way transmission channel is at least proofreaied and correct.
Implement under scene in the one of the embodiment of the present invention, time delay adjustment equipment can start time delay adjustment under the triggering of transceiver, can be specifically: time delay adjustment equipment receives the wake command from transceiver output, switches to normal mode of operation from energy-saving mode; Time delay adjustment equipment receives the starting command from transceiver output, starts at least two-way the 3rd radiofrequency signal receiving from least two-way transmission channel is launched in transceiver.
Implement under scene at another kind, time delay adjustment equipment can also be configured the local oscillator radio frequency signal frequency of carrying out mixing for the 3rd radiofrequency signal, so that the receive frequency of the frequency of the 4th radiofrequency signal and arbitrary road receive path matches.
The time delay adjustment method that the present embodiment provides, its specific implementation process can, referring to the description of time delay adjustment apparatus embodiments provided by the invention, not repeat them here.
The time delay adjustment method that the present embodiment provides, be arranged on the time delay adjustment equipment between feeder line and the antenna sets being connected with transceiver, the radiofrequency signal that in transceiver, at least two-way transmission channel sends is passed through to feeder line successively, amplifier on the tower that may arrange between feeder line B and time delay adjustment equipment, the external filter in base station, after one or more functional units such as combiner-divider (device) and antenna sets, carry out mixing, each the radio frequency obtaining after mixing road signal is returned to respectively to the arbitrary road receive path in transceiver, thereby make time of reception that transceiver can receive Yi road radiofrequency signal taking receive path as benchmark, obtain at least time delay between two-way transmission channel, thereby improve the accuracy of at least two-way transmission channel time delay obtaining, improve time delay adjustment precision, meet the time delay error demand of closed-loop MIMO.
Based on previous embodiment realize in whole or in part scene, corresponding, the present invention also provides following embodiment:
1, a time delay adjustment equipment, comprising: first transmitting-receiving interface, for described transceiver communication; The second transmitting-receiving interface, for communicating by letter with described antenna sets; Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is sent to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface so that described transceiver determine according to the time of reception of the transmitting time of described arbitrary road transmission channel and described at least two-way receive path described in the time delay between two-way receive path at least.
2,, according to the time delay adjustment equipment described in 1, be arranged between the feeder line and described antenna sets being connected with described transceiver.
3, according to the time delay adjustment equipment described in 1 or 2, described the first transmitting-receiving interface comprises at least two first transmitting-receiving ports, and each described the first transmitting-receiving port is corresponding with transmission channel described at least one pair of in described transceiver and described receive path; Described the second transmitting-receiving interface comprises at least two second transmitting-receiving ports, and each described the second transmitting-receiving port is corresponding with an antenna in a described first transmitting-receiving port and described antenna sets respectively.
4, according to the time delay adjustment equipment described in 1-3 any one, described radio frequency unit comprises: local frequency oscillator, mixing device, the first power divider and at least two couplers; Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal; Described mixing device, the described local oscillator radiofrequency signal that described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received and described local frequency oscillator produce is carried out mixing, obtains described the second radiofrequency signal; Described the first power divider, becomes at least two paths of signals for described the second radiofrequency signal that described mixing device is obtained by power division, distributes the described at least two paths of signals obtaining corresponding with described at least two-way receive path respectively; Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, be coupled to described the second transmitting-receiving interface for described the first radiofrequency signal that corresponding transmission channel is sent, so that described the first radiofrequency signal is sent to corresponding antenna by described the second transmitting-receiving interface, and the first radiofrequency signal of returning for the corresponding antenna that described the second transmitting-receiving interface is received is coupled to described mixing device; Also be coupled respectively to described the first transmitting-receiving interface at least two paths of signals that described the first power divider is obtained by power division from described the second radiofrequency signal, so that described at least two paths of signals is sent to respectively corresponding at least two-way receive path by described the first transmitting-receiving interface.
5, according to described time delay adjustment equipment, between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device; When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the first radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the first radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
6, according to the time delay adjustment equipment described in 5, between described the second power divider and described mixing device, be provided with second switch device, described second switch device is corresponding with mismatch load; Described mixing device is connected with described the second power divider by described second switch device, and described the first radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the second radiofrequency signal that the mixing of described mixing device obtains enter described the first power divider.
7, according to the time delay adjustment equipment described in 1-6 any one, also comprise: receiving interface and digital processing element; Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends; Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
8, according to the time delay adjustment equipment described in 7, described digital processing element comprises: power conversion module, energy supply control module and processing module; Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment; Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion; Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
9, according to the time delay adjustment equipment described in 1-8 any one, can also comprise: subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
10, according to the time delay adjustment equipment described in 3-9 any one, each described the first transmitting-receiving port is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches port as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of; Each described the second transmitting-receiving port respectively with corresponding being specially of antenna in described first transmitting-receiving port and a described antenna sets: a described first transmitting-receiving port receives after described the first radiofrequency signal, described the first radiofrequency signal is coupled to described the second transmitting-receiving port by described radio frequency unit, so that described the first radiofrequency signal sends to described antenna by described the second transmitting-receiving port.
11, a time delay adjustment system, comprising: transceiver and antenna sets, be provided with the time delay adjustment equipment described in any one in 1-10 as previously described between described transceiver and described antenna.
12, according to the system described in 11, described transceiver is used for: the transmitting time that sends the first radiofrequency signal according to arbitrary road transmission channel to described time delay adjustment equipment, and at least two-way receive path receives respectively the time of reception of the second radiofrequency signal that described time delay adjustment equipment sends, the time delay between two-way receive path at least described in determining; According to the time delay between described at least two-way receive path, described at least two-way receive path is proofreaied and correct.
13,, according to the system described in 11 or 12, between the feeder line being connected with described transceiver and described time delay adjustment equipment, be also connected with one or any kind combination in following equipment: amplifier, the external filter in base station and combiner-divider on tower.
14,, according to the system described in 13, described time delay adjustment equipment independently arranges, or and the feeder line that is connected with described transceiver and described time delay adjustment equipment between at least one integration of equipments setting of connecting.
15, an amplifier on tower, comprises at least one bank of filters and the time delay adjustment equipment as described in 1-10 any one, and described time delay adjustment equipment is connected with described at least one bank of filters.
16,, according to amplifier on the tower described in 15, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one bank of filters; Described at least one bank of filters is used for: receive by described the first transmitting-receiving interface the first radiofrequency signal that the arbitrary road of described transceiver transmission channel sends, and described the first radiofrequency signal is passed through to described radio frequency unit; And the second radiofrequency signal sending for receiving described radio frequency unit, and described the second radiofrequency signal is passed through to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
17, according to amplifier on the tower described in 15 or 16, also comprise: electricity mediation control interface, the wake command or the starting command that send for receiving described transceiver, and described wake command or described starting command are passed through to the receiving interface in described time delay adjustment equipment.
18, according to amplifier on the tower described in 17, described electricity be in harmonious proportion control interface also for: receive the control command that described transceiver sends, and described control command passed through to the subtending port of described time delay adjustment equipment.
19, a mixer, comprising: at least one filter and the time delay adjustment equipment as described in 1-10 any one, described time delay adjustment equipment is connected with described at least one filter.
20,, according to the mixer described in 19, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one filter; Described at least one filter specifically for: receive by described the first transmitting-receiving interface the first radiofrequency signal that arbitrary road transmission channel in described transceiver sends, and described the first radiofrequency signal passed through to described radio frequency unit; And the second radiofrequency signal sending for receiving described radio frequency unit, and described the second radiofrequency signal is passed through to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
21, a time delay adjustment method, comprising: the first radiofrequency signal that time delay adjustment equipment sends arbitrary road transmission channel in the transceiver of reception sends to antenna sets; The first radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains the second radiofrequency signal; Described the second radiofrequency signal is sent to respectively at least two-way receive path in described transceiver by described time delay adjustment equipment.
22, according to described method, after described the second radiofrequency signal is sent to respectively at least two-way receive path in described transceiver by described time delay adjustment equipment, also comprise: described transceiver is launched the transmitting time of described the first radiofrequency signal to described time delay adjustment equipment according to described arbitrary road transmission channel, and the time of reception of described the second radiofrequency signal of sending of the described time delay adjustment equipment that receives respectively of described at least two-way receive path, the time delay between two-way receive path at least described in determining; Described transceiver, according to the time delay between described at least two-way receive path, is proofreaied and correct described at least two-way receive path.
23, according to the method described in 21 or 22, before the first radiofrequency signal that described time delay adjustment equipment sends arbitrary road transmission channel in the transceiver of reception sends to antenna sets, also comprise: described time delay adjustment equipment receives the wake command of described transceiver output, switches to normal mode of operation from energy-saving mode; Described time delay adjustment equipment receives the starting command of described transceiver output, starts and receives the first radiofrequency signal that in described transceiver, arbitrary road transmission channel sends.
24, according to the method described in 21-23 any one, before the first radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, also comprise: described time delay adjustment equipment is configured the local oscillator radio frequency signal frequency of carrying out mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
25, a time delay adjustment equipment, comprising: first transmitting-receiving interface, for transceiver communication; The second transmitting-receiving interface, for communicating by letter with antenna sets; Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
26,, according to the time delay adjustment equipment described in 25, be arranged between the feeder line and described antenna sets being connected with described transceiver.
27, according to the time delay adjustment equipment described in 25 or 26, described the first transmitting-receiving interface comprises at least two first transmitting-receiving ports, and each described the first transmitting-receiving port is corresponding with transmission channel described at least one pair of in described transceiver and described receive path; Described the second transmitting-receiving interface comprises at least two second transmitting-receiving ports, and each described the second transmitting-receiving port is corresponding with an antenna in a described first transmitting-receiving port and described antenna sets respectively.
28, according to the time delay adjustment equipment described in 25-27 any one, described radio frequency unit comprises: local frequency oscillator, mixing device and at least two couplers; Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal; Described mixing device, described at least two-way the 3rd radiofrequency signal and the described local oscillator radiofrequency signal returned for the described antenna sets that described the second transmitting-receiving interface is received are carried out respectively mixing, two-way the 4th radiofrequency signal at least described in obtaining, and respectively described at least two-way the 4th radiofrequency signal is sent to any at least two couplers; Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, for extremely described the second transmitting-receiving interface of described the 3rd radio frequency signal coupling that corresponding transmission channel is sent, so that described the 3rd radiofrequency signal sends to corresponding antenna by described the second transmitting-receiving interface, and the 3rd radio frequency signal coupling returning for the corresponding antenna that described the second transmitting-receiving interface is received is to described mixing device; Also be coupled to described the first transmitting-receiving interface for described the 4th radiofrequency signal that described mixing device is obtained, so that described the 4th radiofrequency signal is sent to corresponding receive path by described the first transmitting-receiving interface.
29, according to the time delay adjustment equipment described in 28, between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device; When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the 3rd radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the 3rd radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
30, according to described time delay adjustment equipment, between described the second power divider and described mixing device, be provided with second switch device, described second switch device is corresponding with mismatch load; Described mixing device is connected with described the second power divider by described second switch device, and described the 3rd radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the 4th radiofrequency signal that the mixing of described mixing device obtains enter described coupler.
31, according to the time delay adjustment equipment described in 25-30 any one, also comprise: receiving interface and digital processing element; Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends; Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
32, according to the time delay adjustment equipment described in 31, described digital processing element comprises: power conversion module, energy supply control module and processing module; Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment; Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion; Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
33, according to the time delay adjustment equipment described in 24-32 any one, can also comprise: subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
34, according to the time delay adjustment equipment described in 27-33 any one, each described the first transmitting-receiving port is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches port as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of; Each described the second transmitting-receiving port respectively with corresponding being specially of antenna in described first transmitting-receiving port and a described antenna sets: a described first transmitting-receiving port receives after described the 3rd radiofrequency signal, described the first radiofrequency signal is coupled to described the second transmitting-receiving port by described radio frequency unit, so that described the 3rd radiofrequency signal sends to described antenna by described the second transmitting-receiving port.
35, a time delay adjustment system, comprising: transceiver and antenna sets, described transceiver connects between described antenna and is provided with the time delay adjustment equipment as described in 25-34 any one.
36, according to the system described in 35, described transceiver is used for: the transmitting time that sends respectively the 3rd radiofrequency signal according to two-way transmission channel at least to described time delay adjustment equipment, and arbitrary road receive path receives respectively described time delay adjustment equipment and sends the time of reception of the 4th radiofrequency signal that the 3rd radiofrequency signal mixing obtains described in Mei road, the time delay between two-way transmission channel at least described in determining; According to the time delay between described at least two-way transmission channel, described at least two-way transmission channel is proofreaied and correct.
37,, according to the system described in 35 or 36, between the feeder line being connected with described transceiver and described time delay adjustment equipment, be also connected with one or any kind combination in following equipment: amplifier, the external filter in base station and combiner-divider on tower.
38,, according to the system described in 37, described time delay adjustment equipment independently arranges, or and the feeder line that is connected with described transceiver and described time delay adjustment equipment between at least one integration of equipments setting of connecting.
39, an amplifier on tower, comprises at least one bank of filters and the time delay adjustment equipment as described in 25-34 any one, and described time delay adjustment equipment is connected with described at least one bank of filters.
40,, according to amplifier on the tower described in 39, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one bank of filters; Described at least one bank of filters specifically for: receive in described transceiver by described the first transmitting-receiving interface at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, and described the 3rd radiofrequency signal passed through respectively to described radio frequency unit; And at least two-way the 4th radiofrequency signal sending for receiving described radio frequency unit, and described at least two-way the 4th radiofrequency signal is passed through respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
41, according to amplifier on the tower described in 39 or 40, also comprise: electricity mediation control interface, the wake command or the starting command that send for receiving described transceiver, and described wake command or described starting command are passed through to the receiving interface in described time delay adjustment equipment.
42, according to amplifier on the tower described in 41, described electricity be in harmonious proportion control interface also for: receive the control command that described transceiver sends, and described control command passed through to the subtending port of described time delay adjustment equipment.
43, a mixer, comprising: at least one filter and the time delay adjustment equipment as described in 25-34 any one, described time delay adjustment equipment is connected with described at least one filter.
44,, according to the mixer described in 43, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one filter; Described at least one filter specifically for: receive in described transceiver by described the first transmitting-receiving interface at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, and described the 3rd radiofrequency signal passed through respectively to described radio frequency unit; And at least two-way the 4th radiofrequency signal sending for receiving described radio frequency unit, and described at least two-way the 4th radiofrequency signal is passed through respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
45, a time delay adjustment method, comprising: the 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets by time delay adjustment equipment; At least two-way the 3rd radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains respectively at least two-way the 4th radiofrequency signal; Described time delay adjustment equipment sends to respectively arbitrary road receive path in described transceiver by described at least two-way the 4th radiofrequency signal respectively.
46, according to described method, described time delay adjustment equipment sends to described at least two-way the 4th radiofrequency signal respectively respectively in described transceiver after the receive path of arbitrary road, also comprise: described transceiver sends respectively the transmitting time of the 3rd radiofrequency signal to described time delay adjustment equipment according to two-way transmission channel at least, and arbitrary road receive path receives respectively described time delay adjustment equipment and sends the time of reception of the 4th radiofrequency signal that the 3rd radiofrequency signal mixing obtains described in Mei road, the time delay between two-way transmission channel at least described in determining; Described transceiver, according to the time delay between described at least two-way transmission channel, is proofreaied and correct described at least two-way transmission channel.
47, according to the method described in 45 or 46, before the 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets by described time delay adjustment equipment, also comprise: described time delay adjustment equipment receives the wake command of described transceiver output, switches to normal mode of operation from energy-saving mode; Described time delay adjustment equipment receives the starting command of described transceiver output, starts and receives at least two-way the 3rd radiofrequency signal that in described transceiver, at least two-way transmission channel is launched.
48, according to the method described in 45-47 any one, before at least two-way the 3rd radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, also comprise: described time delay adjustment equipment is configured the local oscillator radio frequency signal frequency of carrying out mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described arbitrary road receive path matches.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (88)

1. a time delay adjustment equipment, is characterized in that, comprising:
First transmitting-receiving interface, for transceiver communication;
The second transmitting-receiving interface, for communicating by letter with antenna sets;
Radio frequency unit, the first radiofrequency signal sending for the arbitrary road of the described transceiver transmission channel that described the first transmitting-receiving interface is received, be coupled to described the second transmitting-receiving interface, so that described the first radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface; And described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out mixing, the second radiofrequency signal obtaining is coupled to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface;
Described radio frequency unit comprises: local frequency oscillator, mixing device, the first power divider and at least two couplers;
Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal;
Described mixing device, the described local oscillator radiofrequency signal that described the first radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received and described local frequency oscillator produce is carried out mixing, obtains described the second radiofrequency signal;
Described the first power divider, becomes at least two paths of signals for described the second radiofrequency signal that described mixing device is obtained by power division, distributes the described at least two paths of signals obtaining corresponding with described at least two-way receive path respectively;
Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, be coupled to described the second transmitting-receiving interface for described the first radiofrequency signal that corresponding transmission channel is sent, so that described the first radiofrequency signal is sent to corresponding antenna by described the second transmitting-receiving interface, and the first radiofrequency signal of returning for the corresponding antenna that described the second transmitting-receiving interface is received is coupled to described mixing device; Also be coupled respectively to described the first transmitting-receiving interface at least two paths of signals that described the first power divider is obtained by power division from described the second radiofrequency signal, so that described at least two paths of signals is sent to respectively corresponding at least two-way receive path by described the first transmitting-receiving interface;
Between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device;
When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the first radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the first radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
2. time delay adjustment equipment according to claim 1, is characterized in that, is arranged between the feeder line and described antenna sets being connected with described transceiver.
3. time delay adjustment equipment according to claim 1, it is characterized in that, described the first transmitting-receiving interface comprises at least two first transmitting-receiving interfaces, and each described the first transmitting-receiving interface is corresponding with transmission channel described at least one pair of in described transceiver and described receive path;
Described the second transmitting-receiving interface comprises at least two second transmitting-receiving interfaces, and each described the second transmitting-receiving interface is corresponding with an antenna in a described first transmitting-receiving interface and described antenna sets respectively.
4. time delay adjustment equipment according to claim 2, it is characterized in that, described the first transmitting-receiving interface comprises at least two first transmitting-receiving interfaces, and each described the first transmitting-receiving interface is corresponding with transmission channel described at least one pair of in described transceiver and described receive path;
Described the second transmitting-receiving interface comprises at least two second transmitting-receiving interfaces, and each described the second transmitting-receiving interface is corresponding with an antenna in a described first transmitting-receiving interface and described antenna sets respectively.
5. time delay adjustment equipment according to claim 1, is characterized in that, between described the second power divider and described mixing device, is provided with second switch device, and described second switch device is corresponding with mismatch load;
Described mixing device is connected with described the second power divider by described second switch device, and described the first radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the second radiofrequency signal that the mixing of described mixing device obtains enter described the first power divider.
6. time delay adjustment equipment according to claim 1, is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
7. time delay adjustment equipment according to claim 2, is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
8. time delay adjustment equipment according to claim 3, is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
9. time delay adjustment equipment according to claim 4, is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
10. time delay adjustment equipment according to claim 5, is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
11. time delay adjustment equipment according to claim 6, is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
12. time delay adjustment equipment according to claim 7, is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
13. time delay adjustment equipment according to claim 8, is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
14. time delay adjustment equipment according to claim 9, is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
15. time delay adjustment equipment according to claim 10, is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after described power conversion module conversion is exported to described radio frequency unit, control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
16. time delay adjustment equipment according to claim 1, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
17. time delay adjustment equipment according to claim 2, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
18. time delay adjustment equipment according to claim 3, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
19. time delay adjustment equipment according to claim 4, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
20. time delay adjustment equipment according to claim 5, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
21. time delay adjustment equipment according to claim 6, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
22. time delay adjustment equipment according to claim 7, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
23. time delay adjustment equipment according to claim 8, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
24. time delay adjustment equipment according to claim 9, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
25. time delay adjustment equipment according to claim 10, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
26. time delay adjustment equipment according to claim 11, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
27. time delay adjustment equipment according to claim 12, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
28. time delay adjustment equipment according to claim 13, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
29. time delay adjustment equipment according to claim 14, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
30. time delay adjustment equipment according to claim 15, is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
31. according to the time delay adjustment equipment described in claim 3-30 any one, it is characterized in that,
Each described the first transmitting-receiving interface is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches interface as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of;
Each described the second transmitting-receiving interface respectively with corresponding being specially of antenna in described first transmitting-receiving interface and a described antenna sets: a described first transmitting-receiving interface receives after described the first radiofrequency signal, described the first radiofrequency signal is coupled to described the second transmitting-receiving interface by described radio frequency unit, so that described the first radiofrequency signal sends to described antenna by described the second transmitting-receiving interface.
32. 1 kinds of time delay adjustment systems, is characterized in that, comprising: transceiver and antenna sets, be provided with the time delay adjustment equipment as described in claim 1-31 any one between described transceiver and described antenna sets.
33. systems according to claim 32, it is characterized in that, described transceiver is used for: the transmitting time that sends the first radiofrequency signal according to arbitrary road transmission channel to described time delay adjustment equipment, and at least two-way receive path receives respectively the time of reception of the second radiofrequency signal that described time delay adjustment equipment sends, the time delay between two-way receive path at least described in determining; According to the time delay between described at least two-way receive path, described at least two-way receive path is proofreaied and correct.
34. according to the system described in claim 32 or 33, it is characterized in that, between the feeder line being connected with described transceiver and described time delay adjustment equipment, be also connected with one or any kind combination in following equipment: amplifier, the external filter in base station and combiner-divider on tower.
35. systems according to claim 34, is characterized in that, described time delay adjustment equipment independently arranges, or and the feeder line that is connected with described transceiver and described time delay adjustment equipment between at least one integration of equipments setting of connecting.
Amplifier on 36. 1 kinds of towers, is characterized in that, comprises at least one bank of filters and the time delay adjustment equipment as described in claim 1-31 any one, and described time delay adjustment equipment is connected with described at least one bank of filters.
Amplifier on 37. towers according to claim 36, is characterized in that, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one bank of filters;
Described at least one bank of filters is used for: receive by described the first transmitting-receiving interface the first radiofrequency signal that the arbitrary road of described transceiver transmission channel sends, and described the first radiofrequency signal is passed through to described radio frequency unit; And the second radiofrequency signal sending for receiving described radio frequency unit, and described the second radiofrequency signal is passed through to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
38. according to amplifier on the tower described in claim 36 or 37, it is characterized in that, also comprises:
Electricity mediation control interface, the wake command or the starting command that send for receiving described transceiver, and described wake command or described starting command are passed through to the receiving interface in described time delay adjustment equipment.
39. according to amplifier on the tower described in claim 38, it is characterized in that, described electricity be in harmonious proportion control interface also for: receive the control command that described transceiver sends, and described control command passed through to the subtending port of described time delay adjustment equipment.
40. 1 kinds of mixers, is characterized in that, comprising: at least one filter and the time delay adjustment equipment as described in claim 1-31 any one, described time delay adjustment equipment is connected with described at least one filter.
41. according to the mixer described in claim 40, it is characterized in that, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one filter;
Described at least one filter specifically for: receive by described the first transmitting-receiving interface the first radiofrequency signal that arbitrary road transmission channel in described transceiver sends, and described the first radiofrequency signal passed through to described radio frequency unit; And the second radiofrequency signal sending for receiving described radio frequency unit, and described the second radiofrequency signal is passed through to described the first transmitting-receiving interface, so that described the second radiofrequency signal sends to respectively at least two-way receive path in described transceiver by described the first transmitting-receiving interface.
42. 1 kinds of time delay adjustment methods, is characterized in that, comprising:
The first radiofrequency signal that time delay adjustment equipment sends arbitrary road transmission channel in the transceiver of reception sends to antenna sets;
The first radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains the second radiofrequency signal;
Described the second radiofrequency signal is sent to respectively at least two-way receive path in described transceiver by described time delay adjustment equipment;
Described transceiver is launched the transmitting time of described the first radiofrequency signal to described time delay adjustment equipment according to described arbitrary road transmission channel, and the time of reception of described the second radiofrequency signal of sending of the described time delay adjustment equipment that receives respectively of described at least two-way receive path, the time delay between two-way receive path at least described in determining;
Described transceiver, according to the time delay between described at least two-way receive path, is proofreaied and correct described at least two-way receive path.
43. according to the method described in claim 42, it is characterized in that, the first radiofrequency signal that described time delay adjustment equipment sends arbitrary road transmission channel in the transceiver of reception also comprises before sending to antenna sets:
Described time delay adjustment equipment receives the wake command of described transceiver output, switches to normal mode of operation from energy-saving mode;
Described time delay adjustment equipment receives the starting command of described transceiver output, starts and receives the first radiofrequency signal that in described transceiver, arbitrary road transmission channel sends.
44. according to the method described in claim 42-43 any one, it is characterized in that, the first radiofrequency signal that described time delay adjustment equipment returns described antenna sets also comprises before carrying out mixing:
Described time delay adjustment equipment is configured the local oscillator radio frequency signal frequency of carrying out mixing for described the first radiofrequency signal, so that the receive frequency of the frequency of described the second radiofrequency signal and described at least two-way receive path matches.
45. 1 kinds of time delay adjustment equipment, is characterized in that, comprising:
First transmitting-receiving interface, for transceiver communication;
The second transmitting-receiving interface, for communicating by letter with antenna sets;
Radio frequency unit, for described transceiver at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends that described the first transmitting-receiving interface is received, be coupled respectively to described the second transmitting-receiving interface, so that described at least two-way the 3rd radiofrequency signal sends to described antenna sets by described the second transmitting-receiving interface respectively; And at least two-way the 3rd radiofrequency signal of returning for the described antenna sets that described the second transmitting-receiving interface is received is carried out respectively mixing, the at least two-way obtaining the 4th radiofrequency signal is coupled respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively;
Described radio frequency unit comprises: local frequency oscillator, mixing device and at least two couplers;
Described local frequency oscillator, for generation of local oscillator radiofrequency signal, and is sent to described mixing device by described local oscillator radiofrequency signal;
Described mixing device, described at least two-way the 3rd radiofrequency signal and the described local oscillator radiofrequency signal returned for the described antenna sets that described the second transmitting-receiving interface is received are carried out respectively mixing, two-way the 4th radiofrequency signal at least described in obtaining, and respectively described at least two-way the 4th radiofrequency signal is sent to any at least two couplers;
Any in described at least two couplers is corresponding with an antenna at least one pair of transmission channel and receive path and described antenna sets in described transceiver, for extremely described the second transmitting-receiving interface of described the 3rd radio frequency signal coupling that corresponding transmission channel is sent, so that described the 3rd radiofrequency signal sends to corresponding antenna by described the second transmitting-receiving interface, and the 3rd radio frequency signal coupling returning for the corresponding antenna that described the second transmitting-receiving interface is received is to described mixing device; Also be coupled to described the first transmitting-receiving interface for described the 4th radiofrequency signal that described mixing device is obtained, so that described the 4th radiofrequency signal is sent to corresponding receive path by described the first transmitting-receiving interface;
Between any two described couplers, be provided with the second power divider, between described the second power divider and each described coupler, be respectively equipped with the first switching device, each described the first switching device is corresponding with matched load; Described the second power divider is connected with described mixing device;
When any one coupler in two described couplers is connected with described the second power divider by described the first switching device, another coupler connects with corresponding matched load by described the first switching device, so that the 3rd radiofrequency signal that in two described couplers, an antenna corresponding to coupler returns arrives described mixing device by described the second power divider, the 3rd radiofrequency signal that the antenna that another coupler is corresponding returns is absorbed by described matched load.
46. according to the time delay adjustment equipment described in claim 45, it is characterized in that, is arranged between the feeder line and described antenna sets being connected with described transceiver.
47. according to the time delay adjustment equipment described in claim 45, it is characterized in that, described the first transmitting-receiving interface comprises at least two first transmitting-receiving interfaces, and each described the first transmitting-receiving interface is corresponding with transmission channel described at least one pair of in described transceiver and described receive path;
Described the second transmitting-receiving interface comprises at least two second transmitting-receiving interfaces, and each described the second transmitting-receiving interface is corresponding with an antenna in a described first transmitting-receiving interface and described antenna sets respectively.
48. according to the time delay adjustment equipment described in claim 46, it is characterized in that, described the first transmitting-receiving interface comprises at least two first transmitting-receiving interfaces, and each described the first transmitting-receiving interface is corresponding with transmission channel described at least one pair of in described transceiver and described receive path;
Described the second transmitting-receiving interface comprises at least two second transmitting-receiving interfaces, and each described the second transmitting-receiving interface is corresponding with an antenna in a described first transmitting-receiving interface and described antenna sets respectively.
49. according to the time delay adjustment equipment described in claim 45, it is characterized in that, between described the second power divider and described mixing device, is provided with second switch device, and described second switch device is corresponding with mismatch load;
Described mixing device is connected with described the second power divider by described second switch device, and described the 3rd radiofrequency signal is sent to described mixing device by described the second power divider; Described mixing device is connected by described second switch device and described mismatch load, and described mismatch load is for making described the 4th radiofrequency signal that the mixing of described mixing device obtains enter described coupler.
50. according to the time delay adjustment equipment described in claim 45, it is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
51. according to the time delay adjustment equipment described in claim 46, it is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
52. according to the time delay adjustment equipment described in claim 47, it is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
53. according to the time delay adjustment equipment described in claim 48, it is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
54. according to the time delay adjustment equipment described in claim 49, it is characterized in that, also comprises: receiving interface and digital processing element;
Described receiving interface, for receiving the power supply of described transceiver output, and receives wake command or the starting command that described transceiver sends;
Described digital processing element, for receiving the power supply of described transceiver output by described receiving interface; The described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described radio frequency unit and receive the power supply of described transceiver output by described digital processing element, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, starts respectively described the first transmitting-receiving interface, the second transmitting-receiving interface and described radio frequency unit.
55. according to the time delay adjustment equipment described in claim 50, it is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
56. according to the time delay adjustment equipment described in claim 51, it is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
57. according to the time delay adjustment equipment described in claim 52, it is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
58. according to the time delay adjustment equipment described in claim 53, it is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
59. according to the time delay adjustment equipment described in claim 54, it is characterized in that, described digital processing element comprises: power conversion module, energy supply control module and processing module;
Described power conversion module, for the supply voltage of the described transceiver output receiving by described receiving interface is converted, so that the supply voltage after conversion mates with described time delay adjustment equipment;
Described energy supply control module, under the control of described processing module, exports to described radio frequency unit by the supply voltage of the described transceiver output after described power conversion module conversion;
Described processing module, for the described wake command receiving according to described receiving interface, switch to normal mode of operation from energy-saving mode, control described energy supply control module the supply voltage of the described transceiver output after the conversion of described power conversion module is exported to described radio frequency unit, and control described radio frequency unit and switch to normal mode of operation from energy-saving mode; The described starting command receiving according to described receiving interface, to described radio frequency unit output switch control command, is connected to respective devices execution corresponding operating with each switching device of controlling in described radio frequency unit; Also be configured for the local oscillator radio frequency signal frequency that described radio frequency unit is carried out to mixing for described the 3rd radiofrequency signal, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described at least two-way receive path matches.
60. according to the time delay adjustment equipment described in claim 45, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
61. according to the time delay adjustment equipment described in claim 46, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
62. according to the time delay adjustment equipment described in claim 47, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
63. according to the time delay adjustment equipment described in claim 48, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
64. according to the time delay adjustment equipment described in claim 49, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
65. according to the time delay adjustment equipment described in claim 50, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
66. according to the time delay adjustment equipment described in claim 51, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
67. according to the time delay adjustment equipment described in claim 52, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
68. according to the time delay adjustment equipment described in claim 53, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
69. according to the time delay adjustment equipment described in claim 54, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
70. according to the time delay adjustment equipment described in claim 55, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
71. according to the time delay adjustment equipment described in claim 56, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
72. according to the time delay adjustment equipment described in claim 57, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
73. according to the time delay adjustment equipment described in claim 58, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
74. according to the time delay adjustment equipment described in claim 59, it is characterized in that, can also comprise:
Subtending port, the control command sending for receiving described transceiver, and described control command is passed through and the next stage cascade device of described time delay adjustment equipment connection.
75. according to the time delay adjustment equipment described in claim 47-74 any one, it is characterized in that,
Each described the first transmitting-receiving interface is with transmission channel described at least one pair of in described transceiver and described receive path is corresponding is specially: each described first receives and dispatches interface as the described interface of transmission channel and described receive path and described time delay adjustment equipment described at least one pair of;
Each described the second transmitting-receiving interface respectively with corresponding being specially of antenna in described first transmitting-receiving interface and a described antenna sets: a described first transmitting-receiving interface receives after described the 3rd radiofrequency signal, described radio frequency unit to described the second transmitting-receiving interface, sends to described antenna so that described the 3rd radiofrequency signal is received and dispatched interface by described second by described the 3rd radio frequency signal coupling.
76. 1 kinds of time delay adjustment systems, is characterized in that, comprising: transceiver and antenna sets, be provided with the time delay adjustment equipment as described in claim 45-75 any one between described transceiver and described antenna sets.
77. according to the system described in claim 76, it is characterized in that, described transceiver is used for:
Send respectively the transmitting time of the 3rd radiofrequency signal to described time delay adjustment equipment according to two-way transmission channel at least, and arbitrary road receive path receives respectively described time delay adjustment equipment and sends the time of reception of the 4th radiofrequency signal that the 3rd radiofrequency signal mixing obtains described in Mei road, the time delay between two-way transmission channel at least described in determining; According to the time delay between described at least two-way transmission channel, described at least two-way transmission channel is proofreaied and correct.
78. according to the system described in claim 76 or 77, it is characterized in that, between the feeder line being connected with described transceiver and described time delay adjustment equipment, be also connected with one or any kind combination in following equipment: amplifier, the external filter in base station and combiner-divider on tower.
79. according to the system described in claim 78, it is characterized in that, described time delay adjustment equipment independently arranges, or and the feeder line that is connected with described transceiver and described time delay adjustment equipment between at least one integration of equipments setting of connecting.
Amplifier on 80. 1 kinds of towers, is characterized in that, comprises at least one bank of filters and the time delay adjustment equipment as described in claim 45-75 any one, and described time delay adjustment equipment is connected with described at least one bank of filters.
81. amplifiers on the tower described in 0 according to Claim 8, is characterized in that, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one bank of filters;
Described at least one bank of filters specifically for: receive in described transceiver by described the first transmitting-receiving interface at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, and described the 3rd radiofrequency signal passed through respectively to described radio frequency unit; And at least two-way the 4th radiofrequency signal sending for receiving described radio frequency unit, and described at least two-way the 4th radiofrequency signal is passed through respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
82. amplifiers on the tower described in 0 or 81 according to Claim 8, is characterized in that, also comprise:
Electricity mediation control interface, the wake command or the starting command that send for receiving described transceiver, and described wake command or described starting command are passed through to the receiving interface in described time delay adjustment equipment.
83. amplifiers on the tower described in 2 according to Claim 8, is characterized in that, described electricity be in harmonious proportion control interface also for: receive the control command that described transceiver sends, and described control command passed through to the subtending port of described time delay adjustment equipment.
84. 1 kinds of mixers, is characterized in that, comprising: at least one filter and the time delay adjustment equipment as described in claim 45-75 any one, described time delay adjustment equipment is connected with described at least one filter.
85. mixers described in 4 according to Claim 8, is characterized in that, the transmitting-receiving of first in described time delay adjustment equipment interface is arranged between described transceiver and described at least one filter;
Described at least one filter specifically for: receive in described transceiver by described the first transmitting-receiving interface at least two-way the 3rd radiofrequency signal that at least two-way transmission channel sends, and described the 3rd radiofrequency signal passed through respectively to described radio frequency unit; And at least two-way the 4th radiofrequency signal sending for receiving described radio frequency unit, and described at least two-way the 4th radiofrequency signal is passed through respectively to described the first transmitting-receiving interface, so that described at least two-way the 4th radiofrequency signal sends to the arbitrary road receive path in described transceiver by described the first transmitting-receiving interface respectively.
86. 1 kinds of time delay adjustment methods, is characterized in that, comprising:
The 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets by time delay adjustment equipment;
At least two-way the 3rd radiofrequency signal that described time delay adjustment equipment returns described antenna sets is carried out mixing, obtains respectively at least two-way the 4th radiofrequency signal;
Described time delay adjustment equipment sends to respectively arbitrary road receive path in described transceiver by described at least two-way the 4th radiofrequency signal respectively;
Described transceiver sends respectively the transmitting time of the 3rd radiofrequency signal to described time delay adjustment equipment according to two-way transmission channel at least, and arbitrary road receive path receives respectively described time delay adjustment equipment and sends the time of reception of the 4th radiofrequency signal that the 3rd radiofrequency signal mixing obtains described in Mei road, the time delay between two-way transmission channel at least described in determining;
Described transceiver, according to the time delay between described at least two-way transmission channel, is proofreaied and correct described at least two-way transmission channel.
87. methods described in 6 according to Claim 8, is characterized in that, described time delay adjustment equipment also comprises before the 3rd radiofrequency signal that in the transceiver of reception, at least two-way transmission channel sends is respectively sent to antenna sets:
Described time delay adjustment equipment receives the wake command of described transceiver output, switches to normal mode of operation from energy-saving mode;
Described time delay adjustment equipment receives the starting command of described transceiver output, starts and receives at least two-way the 3rd radiofrequency signal that in described transceiver, at least two-way transmission channel is launched.
88. methods described in 6-87 any one according to Claim 8, is characterized in that, at least two-way the 3rd radiofrequency signal that described time delay adjustment equipment returns described antenna sets also comprises before carrying out mixing:
Described time delay adjustment equipment is to carrying out the local oscillator radio frequency letter of mixing for described the 3rd radiofrequency signal
Number frequency is configured, so that the receive frequency of the frequency of described the 4th radiofrequency signal and described arbitrary road receive path matches.
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