WO2013078592A1

WO2013078592A1 - Delay correction method, device and system

Info

Publication number: WO2013078592A1
Application number: PCT/CN2011/083046
Authority: WO
Inventors: 李玉林; 王勇
Original assignee: 华为技术有限公司
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2013-06-06
Also published as: CN102742174A; CN102742174B

Abstract

A delay correction method, device and system are provided in the present invention. The delay correction device includes: a first transceiver interface, used for communicating with a transceiver; a second transceiver interface, used for communicating with an antenna group; and a radio frequency unit, used for coupling a first radio frequency signal, which is transmitted from any one of transmission channels of the transceiver and received by the first transceiver interface, to the second transceiver interface, so that the first radio frequency signal is transmitted to the antenna group via the second transceiver interface; and used for mixing the first radio frequency signal returned from the antenna group and received by the second transceiver interface, and coupling an obtained second radio frequency signal to the first transceiver interface, so that the second radio frequency signal is transmitted to at least two reception channels of the transceiver separately via the first transceiver interface. The embodiment of the present invention improves the accuracy of the obtained delay of at least two reception channels or at least two transmission channels, increases the delay correction precision, and meets the delay error requirement of closed loop MIMO.

Description

The present invention relates to the field of communications technologies, and in particular, to a delay correction method, device, and system. Background technique

In wireless communication systems such as Wideband Code Division Multiple Access (WCDMA) and Long Term Evolution (LTE), Multiple-Input Multiple-Output (MIMO) systems have been used. The wider the role, the closed-loop MIMO technology requires very high latency consistency between multiple transmit channels or receive channels of the base station. Therefore, in order to meet the needs of the base station closed-loop MIMO delay, the delay correction of the transmit and receive channels is required.

The existing delay correction method corrects the delay between each transmitting channel or receiving channel in the RF module and the delay generated by the duplexer, but the correction accuracy is low, and the delay of the closed-loop MIMO of the base station cannot be satisfied. Claim. Summary of the invention

The embodiment of the invention provides a delay correction method, device and system, so as to improve the correction precision of the wireless communication system and meet the requirement of the base station closed-loop MIMO delay.

In one aspect, an embodiment of the present invention provides a delay correction apparatus, including:

a first transceiver interface, configured to communicate with the transceiver;

a second transceiver interface, configured to communicate with the antenna group;

a radio frequency unit, configured to couple a first radio frequency signal sent by any one of the transceiver channels received by the first transceiver interface to the second transceiver interface, so that the first radio frequency signal passes through The second transceiver interface is sent to the antenna group; and is configured to mix the first radio frequency signal returned by the antenna group received by the second transceiver interface, and couple the obtained second radio frequency signal to the The first transceiver interface is configured to send the second radio frequency signal to the at least two receiving channels of the transceiver through the first transceiver interface. According to an embodiment of the present invention, the delay correction device is disposed between a feeder connected to the transceiver and the antenna group.

According to an embodiment of the present invention, the first transceiver interface includes at least two first transceiver ports, and each of the first transceiver port and the transceiver is at least one pair of the transmission channels and Corresponding to the receiving channel; the second transceiver interface includes at least two second transceiver ports, each of the second transceiver ports corresponding to one of the first transceiver port and the antenna group .

According to an embodiment of the present invention, the radio frequency unit includes: a local frequency oscillator, a mixing device, a first power splitter, and at least two couplers; and the local frequency oscillator is configured to generate a local oscillator radio frequency Transmitting, and transmitting the local oscillator radio frequency signal to the mixing device; the mixing device, the first radio frequency signal returned by the antenna group received by the second transceiver interface, and the The local frequency RF signal generated by the local frequency oscillator is mixed to obtain the second radio frequency signal; the first power divider is configured to use the second radio frequency signal obtained by the mixing device according to power Allocating at least two signals, the allocated at least two signals respectively corresponding to the at least two receiving channels; at least one of the at least two couplers and at least one pair of the transceivers Transmitting a channel and a receiving channel, and corresponding to one of the antenna groups, for coupling the first radio frequency signal sent by the corresponding transmitting channel to the second transceiver And the first radio frequency signal is sent to the corresponding antenna through the second transceiver interface, and is configured to couple the first radio frequency signal returned by the corresponding antenna received by the second transceiver interface to the mixing device And at least two signals obtained by power distribution of the first power splitter from the second radio frequency signal are respectively coupled to the first transceiver interface, so that the at least two signals pass the The first transceiver interface is respectively sent to the corresponding at least two receiving channels.

According to an embodiment of the present invention, a second power splitter is disposed between any two of the couplers, and a first switching device is disposed between the second power splitter and each of the couplers Each of the first switching devices corresponds to a matching load; the second power divider is coupled to the mixing device; and any one of the two couplers passes through the first switching device When the second power splitter is connected, another coupler is connected to the corresponding matching load through the first switching device, so that the first RF signal returned by the antenna corresponding to one of the two couplers passes through the first RF signal. The second power splitter reaches the mixing device, and the first radio frequency signal returned by the antenna corresponding to the other coupler is absorbed by the matching load. According to an embodiment of the present invention, a second switching device is disposed between the second power splitter and the mixing device, and the second switching device corresponds to a mismatch load; the mixing device Connected to the second power splitter by the second switching device, the second power splitter transmits the first radio frequency signal to the mixing device; the mixing device passes the second The switching device is connected to the mismatched load, and the mismatched load is used to cause the second radio frequency signal obtained by mixing the mixing device to enter the first power splitter.

According to an embodiment of the present invention, the delay correction apparatus may further include: a receiving interface and a digital processing unit; the receiving interface, configured to receive power output by the transceiver, and receive the transceiver Sending a wake-up command or a start command; the digital processing unit, configured to receive, by the receiving interface, a power output by the transceiver; and switch from a power-saving mode to a normal according to the wake-up command received by the receiving interface Working mode, controlling, by the digital processing unit, the power output of the transceiver by the digital processing unit, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; and the starting according to the receiving interface And instructing, respectively, the first transceiver interface, the second transceiver interface, and the radio unit.

According to an embodiment of the present invention, the digital processing unit includes: a power conversion module, a power control module, and a processing module; the power conversion module is configured to output the transceiver received through the receiving interface The power supply voltage is changed to match the converted power supply voltage with the delay correction device; the power control module is configured to convert the power conversion module after the control module The power supply voltage outputted by the transceiver is output to the radio frequency unit; the processing module is configured to switch from the power saving mode to the normal working mode according to the wakeup command received by the receiving interface, and control the power control The module outputs a power voltage output by the transceiver converted by the power conversion module to the radio frequency unit, and controls the radio frequency unit to switch from a power saving mode to a normal working mode; according to the receiving interface The startup command outputs a switch control command to the radio frequency unit to control the Each switching device in the frequency unit is connected to the corresponding device to perform a corresponding operation; and is further configured to configure a frequency of the local oscillator radio frequency signal used for mixing the first radio frequency signal in the radio frequency unit, so that the second The frequency of the radio frequency signal matches the frequency of reception of the at least two receive channels.

According to an embodiment of the present invention, the delay correction apparatus may further include: a cascade interface, configured to receive a control command sent by the transceiver, and transparently transmit the control command to the delay Correct the next cascaded device to which the device is connected. According to an embodiment of the present invention, each of the first transceiver port and the at least one pair of the transmitting channel and the receiving channel of the transceiver are specifically: each of the first transceiver a port as an interface between the at least one pair of the transmitting channel and the receiving channel and the delay correction device; each of the second transceiver ports and one of the first transceiver port and the antenna group Corresponding to an antenna is specifically: after the first transceiver port receives the first radio frequency signal, the radio frequency unit couples the first radio frequency signal to the second transceiver port, so that the first A radio frequency signal is transmitted to the antenna through the second transceiver port.

The embodiment of the present invention further provides a delay correction system, including: a transceiver and an antenna group, and a delay correction device is disposed between the transceiver and the antenna;

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

a radio frequency unit, configured to couple a first radio frequency signal sent by any one of the transceiver channels received by the first transceiver interface to the second transceiver interface, so that the first radio frequency signal passes through The second transceiver interface is sent to the antenna group; and is configured to mix the first radio frequency signal returned by the antenna group received by the second transceiver interface, and couple the obtained second radio frequency signal to the The first transceiver interface is configured to send the second radio frequency signal to the at least two receiving channels of the transceiver through the first transceiver interface.

An embodiment of the present invention further provides an on-stage amplifier, including at least one filter bank and a delay correction device, where the delay correction device is connected to the at least one filter bank;

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

An embodiment of the present invention further provides a combiner, at least one filter and a delay correction device, The delay correction device is coupled to the at least one filter;

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

The embodiment of the invention further provides a delay correction method, including:

The delay correction device sends the first radio frequency signal sent by any one of the received transceivers to the antenna group;

The delay correction device mixes the first radio frequency signal returned by the antenna group to obtain a second radio frequency signal;

The delay correction device transmits the second radio frequency signal to at least two receive channels of the transceiver, respectively.

The delay correction method, device and system provided by the embodiment, the delay correction device, the tower amplifier of the integrated delay correction device or the combiner of the integrated delay correction device can send out any transmitting channel in the transceiver The RF signal is sequentially mixed by one or any of the functional units (devices) and the antenna group, which may be disposed between the feeder, the feeder, and the delay correction device, such as an on-stage amplifier, a base station external filter, a splitter, and the like. And returning the RF signal obtained after the mixing to at least two receiving channels in the transceiver, so that the transceiver can obtain the delay between the at least two receiving channels based on the transmitting time of the RF signal of the transmitting channel. Therefore, the accuracy of the obtained at least two receiving channel delays is improved, the delay correction accuracy is improved, and the delay error requirement of the closed-loop MIMO is satisfied.

On the other hand, an embodiment of the present invention further provides a delay correction device, including:

a first transceiver interface, configured to communicate with the transceiver;

a radio frequency unit, configured to send at least two of the transceivers received by the first transceiver interface The at least two third radio frequency signals sent by the transmitting channel are respectively coupled to the second transceiver interface, so that the at least two third radio frequency signals are respectively sent to the antenna group through the second transceiver interface; Performing, respectively, mixing at least two third radio frequency signals returned by the antenna group received by the second transceiver interface, and coupling the obtained at least two fourth radio frequency signals to the first transceiver interface, respectively. The at least two fourth radio frequency signals are respectively sent to any one of the transceiver channels through the first transceiver interface.

According to an embodiment of the embodiments of the present invention, a delay correction device is disposed between a feeder connected to the transceiver and the antenna group.

According to an embodiment of the present invention, the radio frequency unit includes: a local frequency oscillator, a mixing device, and at least two couplers; the local frequency oscillator is configured to generate a local oscillator radio frequency signal, and Transmitting a radio frequency signal to the mixing device, the mixing device, the at least two third radio frequency signals and the local oscillator radio frequency returned by the antenna group received by the second transceiver interface The signals are separately mixed to obtain the at least two fourth radio frequency signals, and the at least two fourth radio frequency signals are respectively sent to any one of the at least two couplers; in the at least two couplers Equivalent to any one of the transmitting channel and the receiving channel of the transceiver and one of the antenna groups for coupling the third radio frequency signal transmitted by the corresponding transmitting channel to the a second transceiver interface, configured to send the third radio frequency signal to the corresponding antenna through the second transceiver interface, and used to receive the corresponding day of the second transceiver interface Returning a third RF signal coupled to the mixing device; further configured to couple the fourth RF signal obtained by the mixing device to the first transceiver interface to pass the fourth RF signal The first transceiver interface is sent to a corresponding receiving channel.

According to an embodiment of the present invention, a second power splitter is disposed between any two of the couplers, and a first switching device is disposed between the second power splitter and each of the couplers Each of the first switching devices corresponds to a matching load; the second power divider is coupled to the mixing device; and any one of the two couplers passes through the first switching device When coupled to the second power splitter, another coupler is coupled to the corresponding matching load by the first switching device to cause a third RF signal returned by the antenna corresponding to one of the two couplers The second frequency divider reaches the mixing device, and the third RF signal returned by the antenna corresponding to the other coupler is absorbed by the matching load.

According to an embodiment of the present invention, a second switching device is disposed between the second power splitter and the mixing device, and the second switching device corresponds to a mismatch load; the mixing device Connected to the second power splitter by the second switching device, the second power splitter transmits the third radio frequency signal to the mixing device; the mixing device passes the second The switching device is coupled to the mismatched load, and the mismatched load is used to cause the fourth radio frequency signal obtained by mixing the mixing device to enter the coupler.

According to an embodiment of the present invention, the delay correction apparatus further includes: a receiving interface and a digital processing unit; the receiving interface is configured to receive power output by the transceiver, and receive the sending by the transceiver a wake-up command or a start command; the digital processing unit, configured to receive, by the receiving interface, a power output by the transceiver; and switch from a power-saving mode to a normal working mode according to the wake-up command received by the receiving interface Controlling, by the digital processing unit, the radio frequency unit to receive power output by the transceiver, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; according to the startup command received by the receiving interface, The first transceiver interface, the second transceiver interface, and the radio frequency unit are respectively activated.

According to an embodiment of the present invention, the digital processing unit includes: a power conversion module, a power control module, and a processing module; the power conversion module is configured to output the transceiver received through the receiving interface The power supply voltage is changed to match the converted power supply voltage with the delay correction device; the power control module is configured to convert the power conversion module after the control module The power supply voltage outputted by the transceiver is output to the radio frequency unit; the processing module is configured to switch from the power saving mode to the normal working mode according to the wakeup command received by the receiving interface, and control the power control The module outputs a power voltage output by the transceiver converted by the power conversion module to the radio frequency unit, and controls the radio frequency unit to switch from a power saving mode to a normal working mode; receiving according to the receiving interface The start command, outputting a switch control command to the radio unit to control the radio frequency Each element of the switching device is connected to the corresponding device performs the corresponding operation; for further local oscillator frequency signal RF third RF signal for the radio frequency unit of the mixes is arranged so that the first The frequency of the four radio frequency signals matches the reception frequency of the at least two receiving channels.

According to an embodiment of the present invention, the delay correction apparatus may further include: a cascade interface, configured to receive a control command sent by the transceiver, and transparently transmit the control command to the delay correction The next-level cascaded device to which the device is connected.

According to an embodiment of the present invention, each of the first transceiver port and the at least one pair of the transmitting channel and the receiving channel of the transceiver are specifically: each of the first transceiver a port as an interface between the at least one pair of the transmitting channel and the receiving channel and the delay correction device; each of the second transceiver ports and one of the first transceiver port and the antenna group An antenna corresponds to: after the first transceiver port receives the third radio frequency signal, the radio frequency unit couples the first radio frequency signal to the second transceiver port, so that the third A radio frequency signal is transmitted to the antenna through the second transceiver port.

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

a radio frequency unit, configured to couple at least two third radio frequency signals sent by at least two of the transceivers received by the first transceiver interface to the second transceiver interface, respectively, so that the at least The two third radio frequency signals are respectively sent to the antenna group through the second transceiver interface; and are used for respectively mixing at least two third radio frequency signals returned by the antenna group received by the second transceiver interface, And respectively, the obtained at least two fourth radio frequency signals are respectively coupled to the first transceiver interface, so that the at least two fourth radio frequency signals are respectively sent to any one of the transceivers through the first transceiver interface Receive channel.

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

a radio frequency unit, configured to couple at least two third radio frequency signals sent by at least two of the transceivers received by the first transceiver interface to the second transceiver interface, respectively, so that The at least two third radio frequency signals are respectively sent to the antenna group through the second transceiver interface; and configured to perform, respectively, on the at least two third radio frequency signals returned by the antenna group received by the second transceiver interface Mixing, the obtained at least two fourth radio frequency signals are respectively coupled to the first transceiver interface, so that the at least two fourth radio frequency signals are respectively sent to the transceiver through the first transceiver interface Any way to receive channels.

An embodiment of the present invention further provides a combiner, at least one filter and a delay correction device, wherein the delay correction device is connected to the at least one filter;

The delay correction device includes:

a first transceiver interface, configured to communicate with the transceiver;

The delay correction device sends the third radio frequency signal respectively sent by the at least two transmit channels in the received transceiver to the antenna group;

The delay correction device mixes at least two third radio frequency signals returned by the antenna group to obtain at least two fourth radio frequency signals respectively;

The delay correction device respectively transmits the at least two fourth radio frequency signals to any one of the transceivers.

The delay correction method, device and system provided by the embodiment, the delay correction device, the tower amplifier of the integrated delay correction device or the combiner of the integrated delay correction device can transmit at least two transmission channels in the transceiver The emitted RF signal is sequentially mixed by one or any of several functional units (devices) and antenna groups, such as an on-line amplifier, a base station external filter, a splitter, etc., which may be disposed between the feeder, the feeder, and the delay correction device. Frequency, the respective RF signals obtained after mixing are respectively returned to any receiving channel in the transceiver, so that the transceiver can receive the receiving channel The receiving time of one RF signal is used as a reference to obtain a delay between at least two transmitting channels, thereby improving the accuracy of the obtained delay of at least two transmitting channels, improving the accuracy of delay correction, and satisfying the closed-loop MIMO. Delay error requirements. DRAWINGS

The drawings used in the embodiments or the description of the prior art are briefly described. It is obvious that the drawings in the following description are some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a schematic structural diagram of an embodiment of a delay correction apparatus according to the present invention;

2 is a schematic structural diagram of still another embodiment of a delay correction apparatus according to the present invention; FIG. 3 is a schematic structural diagram of another embodiment of a delay correction apparatus according to the present invention; FIG. 4 is another time delay correction apparatus provided by the present invention. A schematic structural diagram of an embodiment; FIG. 5 is a schematic diagram of signal transmission between modules in a digital processing unit;

Figure 6 is a flow diagram showing one embodiment of a control operation performed by a processing module in a digital processing unit;

7 is a schematic structural diagram of an embodiment of a delay correction system provided by the present invention;

8 is a schematic structural diagram of still another embodiment of a delay correction system according to the present invention; FIG. 9 is a schematic structural diagram of an embodiment of an amplifier on a tower provided by the present invention;

10 is a schematic structural view of still another embodiment of an amplifier on a tower provided by the present invention;

11 is a flowchart of an embodiment of a delay correction method provided by the present invention;

FIG. 12 is a flow chart of another embodiment of a delay correction method provided by the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those skilled in the art are not making creative labors. All other embodiments obtained below are within the scope of the invention.

1 is a schematic structural diagram of an embodiment of a delay correction device according to the present invention. As shown in FIG. 1, the delay correction device includes: a first transceiver interface 1, a second transceiver interface 2, and a radio frequency unit 3;

The first transceiver interface 1 can be used to communicate with the transceiver A;

The second transceiver interface 2 can be used to communicate with the antenna group C;

The radio frequency unit 3 can be configured to couple the first radio frequency signal sent by any one of the transceiver channels A received by the first transceiver interface 1 to the second transceiver interface 2, so that the first radio frequency signal passes through the second transceiver interface. 2 is sent to the antenna group C; and can be used for mixing the first radio frequency signal returned by the antenna group C received by the second transceiver interface 2, and coupling the obtained second radio frequency signal to the first transceiver interface 1 to enable The two radio frequency signals are respectively sent to the at least two receiving channels in the transceiver A through the first transceiver interface 1. Thus, the transceiver A can determine the delay between at least two receiving channels according to the transmission time of any of the transmission channels and the reception time of at least two of the receiving channels.

In an implementation scenario of the embodiment, the delay correction device provided by the embodiment of the present invention may be disposed between the feeder B and the antenna group C connected to the transceiver A. In this implementation scenario, the first transceiver interface 1 may be an interface unit connected to the feeder B in the delay correction device, and configured to receive the first radio frequency signal sent by any one of the transceivers A from the feeder B. .

In another implementation scenario of the embodiment, one or any other functional units (devices) externally disposed on the transceiver A may be connected between the feeder B and the delay correction device, for example: an amplifier on the tower, a base station External filter, combiner, etc. In this implementation scenario, the first radio frequency signal transmitted by any of the transmitting channels of the transceiver A can be received by the first transceiver interface 1 after being transparently transmitted through the functional units (devices).

It can be understood that the delay correction device provided by the embodiment of the present invention can be independently set, or can be integrated into one device with one or any of several devices such as an amplifier on the tower, an external filter of the base station, and a splitter. After receiving the first radio frequency signal, the radio frequency unit 3 couples the first radio frequency signal to the second transceiver interface 2, so that the first radio frequency signal is sent to the antenna group C through the second transceiver interface 2. The second transceiver interface 2 is an interface unit between the delay correction device and the antenna group C. The second transceiver interface 2 sends the first radio frequency signal to the antenna group C. The antenna group C usually includes Two or more antennas may be used to transmit radio frequency signals between the antennas. The first radio frequency signals are transmitted between different antennas in the antenna group C, and then returned to the second transceiver interface 2. The radio frequency unit 3 mixes the first radio frequency signal returned by the antenna group C to obtain a second radio frequency signal, and couples the second radio frequency signal to the first transceiver interface 1 so that the second radio frequency signal passes through the first transceiver interface 1 They are sent to at least two of the transceivers A in the transceiver A. The transmitting channel and the receiving channel in the transceiver 可以 can be set in pairs, and the transmitting channel and the receiving channel correspondingly set in pairs can be connected to the same duplexer, that is, the RF signal sent by the transmitting channel is sent through the duplexer. For other devices connected to the transceiver A, the radio signals transmitted by the other devices to the transceiver A are received by the receiving channel via the duplexer. Therefore, the radio frequency unit 3 can generally send the second radio frequency signal to the receiving channel and other receiving channels that are paired with the transmitting channel through the first transceiver interface 1, or the radio frequency unit 3 can also pass the first transceiver interface 1 The two radio frequency signals are sent to the other at least two transmitting channels in the transceiver A corresponding to the set receiving channels.

If the delay correction device is directly connected to the feeder B, the second RF signal sent by the first transceiver interface 1 respectively reaches at least two receiving channels in the transceiver A via the feeder B; if the delay correction device and the feeder B are Also connected with one or any of several functional units (devices) such as an amplifier on the tower, an external filter of the base station, and a splitter, the second RF signal sent by the first transceiver interface 1 is transparent through the functional units (devices). After the transmission arrives at at least two receiving channels in the transceiver A.

It should be noted that, since the radio frequency signal and the received radio frequency signal transmitted by the transceiver A usually have different frequencies, the delay correction device needs to mix the first radio frequency signal returned by the antenna group C through the radio frequency unit 3, A second radio frequency signal is obtained (the frequency of the second radio frequency signal needs to match the receiving frequency of the transceiver A).

It can be seen that, in an implementation scenario provided by this embodiment, the first radio frequency signal sent by any one of the transmitting channels of the transceiver A passes through the feeder B, the feeder B and the delay correction device may be arranged on the tower. One or any of the functional units (devices) such as an amplifier, a base station external filter, and a splitter, and the delay correction device and each antenna in the antenna group C, return to the delay correction device, and the delay correction device The second radio frequency signal obtained by mixing the first radio frequency signal is respectively returned to at least two receiving channels in the transceiver A.

Since the second radio frequency signals received by the at least two receiving channels in the transceiver A respectively correspond to the first radio frequency signals transmitted by the same transmitting channel, the transmitting time of the first radio frequency signal can be transmitted by the transceiver A by using the transmitting channel. For the benchmark, compare the first received by at least two receiving channels The time difference between the two radio frequency signals is obtained, so that the delay between the at least two receiving channels is obtained, and then the delay correction of the at least two receiving channels may be performed based on the obtained delay of the at least two receiving channels.

The delay between the at least two receiving channels obtained by using the delay correction device provided by the embodiment of the present invention may include the delay of the feeder B connected to the transceiver A, the delay of the delay correction device itself, and the antenna group. The delay between the antennas in C; in addition, one or more of the optional on-column amplifier, base station external filter, and splitter, which are optionally arranged between the feeder B and the delay correction device The delay of the functional unit (device), therefore, improves the accuracy of the obtained delay between at least two receiving channels, thereby improving the delay correction accuracy and satisfying the delay error requirement of the closed-loop MIMO.

The delay correction device provided in this embodiment sequentially passes the radio frequency signal sent by any transmitting channel in the transceiver through the tower amplifier, the base station external filter, and the combined connection between the feeder, the feeder and the delay correction device. One or any of the functional units (devices) and the antenna group are mixed after the router, and the mixed RF signals are returned to at least two receiving channels in the transceiver, so that the transceiver can transmit The radio frequency signal transmission time of the channel is used as a reference to obtain a delay between at least two receiving channels, thereby improving the accuracy of the obtained at least two receiving channel delays, improving the delay correction accuracy, and satisfying the closed-loop MIMO timing. Delay error requirements. Since the transceiver A usually includes a pair of transmitting channels and receiving channels, and each pair of transmitting channels and receiving channels are usually connected to the same duplexer, the duplexer is a transmitting port and a receiving channel for transmitting a radio frequency signal to the transmitting channel. The receiving port that receives the RF signal. Therefore, in order to match the structure of the general transceiver A, the present invention also provides a further embodiment of the delay correction apparatus shown in Fig. 2, and see Fig. 1, wherein:

The first transceiver interface 1 may include at least two first transceiver ports 11 , each of the first transceiver ports 11 corresponding to at least one pair of transmit channels and receive channels in the transceiver A;

Correspondingly, the second transceiver interface 2 can include at least two second transceiver ports 21, and each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C. That is, in one implementation scenario, the number of the first transceiver port 11 and the number of the second transceiver port 21 are equal to the number of antennas in the antenna group C, respectively, and one first transceiver port 11 can be combined with a pair of transmission channels. Corresponding to the receiving channel, it can also correspond to multiple pairs of transmitting channels and receiving channels.

A specific structural embodiment of the radio frequency unit 3 is also provided in this embodiment, and the radio frequency unit 3 is provided. The method may include: a local frequency oscillator 31, a mixing device 32, a first power splitter 33, and at least two couplers 34;

The local frequency oscillator 31 can be used to generate a local oscillator RF signal, and send the local oscillator RF signal to the mixing device 32;

The mixing device 32 can be configured to mix the first RF signal returned by the antenna group C received by the second transceiver interface 2 and the local oscillator RF signal generated by the local frequency oscillator 31 to obtain a second RF signal.

The first power splitter 33 can be configured to divide the second radio frequency signal obtained by the mixing device 32 into at least two signals by power, and the at least two signals obtained by the distribution are respectively corresponding to at least two receiving channels;

Any one of the at least two couplers 34 corresponds to at least one of the transmit channel and the receive channel of the transceiver A and one of the antenna groups C, and may be used to transmit the first radio frequency of the corresponding transmit channel The signal is coupled to the second transceiver interface 2, so that the first radio frequency signal is sent to the corresponding antenna through the second transceiver interface 2, and can be used to couple the first radio frequency signal returned by the corresponding antenna received by the second transceiver interface 2 to The mixing device 32 is further configured to respectively couple at least two signals obtained by power distribution of the first power splitter 33 from the second radio frequency signal to the first transceiver interface 1 to pass the at least two signals through the first The transceiver interface 1 is respectively sent to the corresponding at least two receiving channels.

It should be noted that, in an implementation scenario of the embodiment of the present invention, each of the first transceiver ports 11 corresponds to at least one pair of transmit channels and receive channels in the transceiver A, for example: As shown in FIG. There are two pairs of transmitting channels and receiving channels in the transceiver A, which are: transmitting channel 1 and receiving channel 1, transmitting channel 2 and receiving channel 2. For example, as shown in FIG. 2, the first transceiver port 11a may correspond to the transmitting channel 1 and the receiving channel 1 as an interface unit of the transmitting channel 1 and the receiving channel 1 and the delay correction device; the first transceiver port 1 lb It can correspond to the transmitting channel 2 and the receiving channel 2 as an interface unit of the transmitting channel 2 and the receiving channel 2 and the delay correction device.

Each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C. For example, it is assumed that the antenna group C shown in FIG. 1 includes two antennas, respectively, an antenna C. 1 and antenna C2, the second transceiver port 21a shown in FIG. 2 can also correspond to the first transceiver port 11a and the antenna C1, respectively. After the first transceiver port 11a receives the first RF signal, the RF unit 3 The first radio frequency signal can be coupled to the second transceiver port 21a such that the second transceiver end The port 21a sends the first radio frequency signal to the antenna CI. Similarly, the second transceiver port 21b shown in FIG. 2 can correspond to the first transceiver port 1 ib and the antenna C2, respectively, when the first transceiver port l ib receives After the first radio frequency signal, the radio frequency unit 3 can couple the first radio frequency signal to the second transceiver port 21b, so that the second transceiver port 21b sends the first radio frequency signal to the antenna C2.

The first transceiver interface 1 may further include at least two first transceiver ports 11, and each of the first transceiver ports 11 corresponds to at least one pair of transmission channels and reception channels in the transceiver A; the second transceiver interface 2 may Further comprising at least two second transceiver ports 21, and each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C, respectively. Therefore, in the implementation scenario of the embodiment, a coupler 34 can correspond to a first transceiver port 11 and a second transceiver port 21. For example, the coupler 34a shown in FIG. 2 can couple the first radio frequency signal received by the corresponding first transceiver port 11a to the corresponding second transceiver port 21a, so that the first radio frequency signal is sent to the second transceiver port 21a to the second transceiver port 21a. Corresponding antenna C1, and the coupler 34a can couple the first radio frequency signal received by the corresponding second transceiver port 21a to the mixing device 32. Further, each coupler 34 can also couple at least two signals obtained by power distribution of the first power splitter 33 from the second radio frequency signal to the first transceiver port 11 corresponding to at least two receiving channels, for example: The coupler 34a shown in FIG. 2 can couple a signal obtained by power distribution of the first power splitter 33 from the second radio frequency signal to the corresponding first transceiver port 11a, so that the first transceiver port 11a signals the path. Sending to the corresponding receiving channel 1 , the coupler 34 b can couple the first power splitter 33 from the second RF signal to the corresponding first transceiver port 1 ib to make the first The transceiver port l ib sends the path signal to the corresponding receiving channel 2, so that at least two signals are respectively sent from the first transceiver port 11 corresponding to the at least two receiving channels to the at least two receiving channels.

The transceiver A still assumes the above assumptions includes two pairs of transmit channels and receive channels: transmit channel 1 and receive channel 1, and transmit channel 2 and receive channel 2; antenna group C includes 2 antennas: antenna C1 and antenna C2 are The example is explained. The first transceiver interface 1 shown in FIG. 2 includes two first transceiver ports 11 , which are respectively a first transceiver port 11 a and a first transceiver port 1 ib. The second transceiver interface 2 includes two second transceiver ports 21 , respectively It is a second transceiver port 21a and a second transceiver port 21b; the RF unit 3 includes two couplers 34, which are a coupler 34a and a coupler 34b, respectively. The transmitting channel 1 and the receiving channel 1 respectively correspond to the first transceiver port l la, the second transceiver port 21a, the antenna C1 and the coupler 34a; the transmitting channel 2 and the receiving channel 2 are respectively connected to the first transceiver port 1 lb, the second transceiver port 2 lb, the antenna C2, and the coupler 34b correspond.

The transmitting channel 1 in the transceiver A sends a first radio frequency signal, and the first radio frequency signal passes through an on-stage amplifier, a base station external filter, a splitter, etc., which may be disposed between the feeder line B and the delay correction device. Or any of the functional devices (devices), being received by the first transceiver port 11a, the coupler 34a coupling the first RF signal to the second transceiver port 21a, and transmitting the first RF signal to the second transceiver port 21a In the antenna C1, since each antenna in the antenna group C can receive the radio frequency signal transmitted by the other antenna through the electromagnetic wave, the antenna C2 can receive the first radio frequency signal sent by the antenna C1 through the electromagnetic wave, and the antenna C2 returns the first radio frequency signal to the antenna C1. The second transceiver port 21b, the coupler 34b couples the first RF signal returned by the second transceiver port 21b to the mixing device 32, and the mixing device 32 compares the first RF signal with the local oscillator RF generated by the local frequency oscillator 31. The signal is mixed to obtain a second RF signal (the frequency of the second RF signal matches the receiving frequency of the duplexer in the transceiver A), and the second shot is The frequency signal is sent to the first power splitter 33, and the first power splitter ₃₃ distributes the second radio frequency signal into two signals according to the set power, wherein one of the signals is sent to the coupler 34a, and the coupler 34a will The road signal is coupled to the first transceiver port 11a, so that the road signal is sent to the corresponding receiving channel 1 through the first transceiver port 11a; likewise, another signal distributed from the second RF signal is sent to the coupler 34b, coupled The device 34b couples the way signal to the first transceiver port 1 ib so that the way signal is sent to the receiving channel 2 through the first transceiver port 1 ib.

After the receiving channel 1 and the receiving channel 2 respectively receive the second radio frequency signal, the transceiver A can receive the second radio frequency signal according to the transmitting time of the transmitting channel 1 transmitting the first radio frequency signal, and according to the receiving channel 1 and the receiving channel 2. Time, correcting the delay between receiving channel 1 and receiving channel 2. The second radio frequency signals received by the receiving channel 1 and the receiving channel 2 are actually two signals obtained by the first power distributor 33 in the delay correction device after power distribution of the second radio frequency signal.

FIG. 2 only corrects the delay between the receiving channel 1 and the receiving channel 2 based on the transmission time of the first radio frequency signal transmitted by the transmitting channel 1. It can be understood that the transmission channel 2 can also be sent. The transmission time of the first radio frequency signal is used as a reference, and the delay between the receiving channel 1 and the receiving channel 2 is corrected.

Due to a certain port in the second transceiver interface 2, for example, after the second transceiver port 21a sends the first RF signal to the corresponding antenna C1, the first RF signal may also partially return to the second transceiver. Transmitting the port 21a and entering the mixer 32 through the coupler 34a, thereby causing an interference signal when the mixer 32 mixes the first radio frequency signal returned by the antenna C2 received by the second transceiver port 21b, according to which In another implementation scenario of the embodiment, a second power splitter 35 may be further disposed between any two couplers 34, and a first switch may be disposed between the second power splitter 35 and each coupler 34. Device 36, each of the first switching devices may correspond to a matching load 37; the second power divider 35 may be coupled to the mixing device 32;

Wherein, when any one of the two couplers 34 is connected to the second power splitter 35 through the first switching device 36, the other coupler is connected to the corresponding matching load 37 through the first switching device 36, so that two The first radio frequency signal returned by the antenna corresponding to one of the couplers 34 passes through the second power splitter 35 to the mixing device 32, and the first radio frequency signal returned by the corresponding antenna of the other coupler 34 is absorbed by the matching load 37. .

Still taking FIG. 2 as an example, a second power splitter 35 is disposed between the coupler 34a and the coupler 34b, and a first switching device 36a is disposed between the second power splitter 35 and the coupler 34a. The first switching device is provided. 36a also corresponds to a matching load 37a; likewise, a first switching device 36b is provided between the second power splitter 35 and the coupler 34b, the first switching device 36b also corresponding to a matching load 37b. In addition, the second power splitter 35 is also coupled to the mixing device 32.

When the time delay between the receiving channel 1 and the receiving channel 2 is corrected based on the transmission time of the first radio frequency signal transmitted by the transmitting channel 1, the first switching device 36a may be connected to the matching load 37a, and the matching load 37a is used. The first RF signal returned by the absorption antenna C1 is prevented from entering the mixing device 32 through the second power divider 35; the first switching device 36b is connected to the second power divider 35, so that the antenna C2 is returned. The first radio frequency signal to the second transceiver port 21b enters the mixing device 32 through the second power divider 35.

When the time delay between the receiving channel 1 and the receiving channel 2 is corrected based on the transmission time of the first radio frequency signal transmitted by the transmitting channel 2, the first switching device 36a and the second power distributor 35 may be turned on, A switching device 36b is coupled to the matching load 37b such that the first RF signal returned by the antenna C1 from the second transceiver port 21a passes through the second power divider 35 to the mixing device 32.

In an implementation scenario, a second switching device 38 may be further disposed between the second power divider 35 and the mixing device 32, the second switching device 38 also corresponding to a mismatch load 39; when the mixing device 32 Connected to the second power splitter 35 by the second switching device 38, the second power splitter 35 transmits the first radio frequency signal to the mixing device 32; when the mixing device 32 passes the second The switching device 38 is turned on with the mismatch load 39, and the mismatch load 39 can be used to cause the second RF signal obtained by mixing the mixing device 32 to enter the first power splitter 33.

For example, the coupler 34a shown in FIG. 2 is connected to the second power splitter 35 through the first switching device 36a, and the mixing device 32 can be first connected to the second power splitter 35 through the second switching device 38 to receive The first radio frequency signal of the coupler 34a. After the mixing device 32 mixes the first RF signal to obtain the second RF signal, the mixing device 32 can be connected to the mismatched load 39 through the second switching device 38, because the mismatched load 39 acts as a reflected signal. Therefore, the mismatch load 39 can sufficiently pass the second RF signal obtained by mixing the mixing device 32 into the first power splitter.

In the foregoing description, two pairs of transmitting channels and receiving channels are provided in the transceiver A, and two antennas are included in the antenna group C. The first transceiver interface 1 in the delay correction device includes two first transceiver ports 1 1 . The second transceiver interface 2 includes two second transceiver ports 21 as an example, and a feasible structure of the delay correction device is described in detail. However, this is not to be taken as a limitation of the delay correction device provided by the embodiment of the present invention. In another implementation scenario provided by the embodiment, the first transceiver port 11 may correspond to two or more pairs of transmit channels and receive channels in the transceiver A, for example: There are 4 pairs of transmitting channels and receiving channels in the letter A, the first transceiver port 11a shown in FIG. 2 and the transmitting channel 1 and receiving channel 1 in the 4 pairs of transmitting channels and receiving channels, and the transmitting channel 2 and the receiving channel Corresponding to, that is, the first transceiver port 11a can serve as an interface unit of the transmission channel 1 and the reception channel 1 and the delay correction device, or as an interface unit of the transmission channel 2 and the reception channel 2 and the delay correction device.

In this implementation scenario, the second transceiver port 21 still corresponds to a first transceiver port 11 and an antenna, and a coupler 34 can still correspond to a first transceiver port 1 1 and a second transceiver port 21, See the previous description for details.

In the prior art, when there are more than two pairs of transmit channels and receive channels in the transceiver A, multiple antennas can also be used. Therefore, in this implementation scenario, the delay correction device provided by the embodiment of the present invention is provided. The number of the first transceiver port 1 1 , the second transceiver port 21 , and the coupler 34 may be increased accordingly, so that the number of the first transceiver port 1 1 , the second transceiver port 21 , and the coupler 34 and the number of antennas are increased. Consistent.

As can be seen from the foregoing description, the first switching device 36, the second power divider 35, the matching load 37, and the second switching device 38 are auxiliary devices disposed between the two couplers 34, and thus, These devices also increase with the number of couplers 34 and correspondingly increase. The number of the local frequency oscillator 31, the mixing device 32, and the first power divider may be set to only one, or may be appropriately increased as the number of couplers 34 increases.

In an implementation scenario of this embodiment, it is assumed that the transceiver A has three pairs of transmit channels and receive channels, and the antenna group C has three antennas, and the first transceiver interface 1 of the delay correction device has three first interfaces. The transceiver port 1 1 has two second transceiver ports 21 in the second transceiver interface 2, and the delay correction device has three couplers 34. After the first transceiver port 11a receives the first RF signal sent by the transmission channel 1, the coupler 34a couples the first RF signal to the second transceiver port 21a, so that the first RF signal is sent through the second transceiver port 21a. For the antenna C1, since the antenna C2 and the antenna C3 transmit the first radio frequency signal through the electromagnetic wave transmission, in this case, since the first radio frequency signal returned by one antenna is mixed to obtain the second radio frequency signal, the second radio frequency signal can be obtained. The second radio frequency signal after the power allocation is returned to the at least two receiving channels of the three receiving channels. Therefore, in this implementation scenario, the coupler 34 corresponding to the antenna C2 or the antenna C3 can be turned off. The coupler 34 corresponding to the antenna C2 or the antenna C3 is no longer operated, so that the first radio frequency signal returned by the antenna C2 or the antenna C3 is no longer subjected to the mixing processing.

The delay correction device provided by each of the above embodiments sequentially passes the radio frequency signal sent by any one of the transmitting channels through the tower overhead amplifier, the base station external filter, and the possible connection between the feeder, the feeder and the delay correction device. One or any of the functional devices, such as a splitter, and the antenna group are then mixed, and the obtained signal is returned to at least two receiving channels in the transceiver, so that the transceiver can transmit the signal time of the transmitting channel. For the benchmark, obtain the delay between at least two receive channels.

It can be understood that, as another feasible implementation manner, the delay correction device may further pass the radio frequency signals sent by at least two transmitting channels in the transceiver through the possible connection between the feeder, the feeder, and the delay correction device. Mixing one or any other functional devices and antenna groups, such as an upper amplifier, a base station external filter, a splitter, etc., and then returning at least two signals obtained to any one of the transceiver channels, thereby The transceiver can obtain the delay between at least two transmit channels based on the reception time of one signal received by the receiving channel. Accordingly, the present invention further provides a further embodiment of the delay correction device. The structure of the delay correction device is as shown in FIG. 1. The delay correction device includes: a first transceiver interface 1, a second transceiver interface 2, and a radio frequency unit 3; :

The first transceiver interface 1 can be used to communicate with the transceiver; The second transceiver interface 2 can be used to communicate with the antenna group;

The radio frequency unit 3 can be configured to couple at least two third radio frequency signals sent by at least two transmit channels in the transceiver received by the first transceiver interface to the second transceiver interface, so that the at least two channels are third. The radio frequency signals are respectively sent to the antenna group through the second transceiver interface; and can be used to mix at least two third radio frequency signals returned by the antenna group received by the second transceiver interface, and at least two channels are obtained. The radio frequency signals are respectively coupled to the first transceiver interface, so that the at least two fourth radio frequency signals are respectively sent to any one of the transceivers through the first transceiver interface.

The difference between this embodiment and the embodiment shown in FIG. 1 is that the first transceiver interface 1 can be connected from the feeder B, and the tower amplifier, the base station external filter, and the joint between the feeder B and the delay correction device. At least two third RF signals are received by one or any other device (device) such as a router, wherein each third RF signal is from one of the transceiver channels A, and the third RF signal is for each channel. The radio frequency unit 3 is coupled to the second transceiving interface 2 to transmit the third radio frequency signal to the antenna group C through the second transceiving interface 2. Since the radio frequency signals can be transmitted through the electromagnetic waves between the antennas in the antenna group C, each of the third radio frequency signals is transmitted between the different antennas in the antenna group and then returned to the second transceiver interface 2.

The radio frequency unit 3 respectively mixes each third radio frequency signal returned by the antenna group received by the second transceiver interface 2, respectively obtains a fourth radio frequency signal corresponding to each third radio frequency signal, and obtains each fourth radio frequency signal. The radio frequency signal is coupled to the first transceiver interface 1 such that each fourth radio frequency signal is sent to any one of the transceiver channels A through the first transceiver interface 1 respectively. That is, there are several transmission channels transmitting the third RF signal, and the RF unit 3 obtains several fourth RF signals, and returns the obtained fourth RF signal to any of the transceiver channels in the transceiver A. The receiving channel may be a receiving channel that is paired with the transmitting channel that transmits the third radio frequency signal, and may also be a receiving channel that is paired with other transmitting channels. The frequency of the fourth RF signal matches the reception frequency of transceiver A.

It should be noted that, in the delay correction device provided in this embodiment, at least two transmit channels may respectively transmit a third radio frequency signal by means of time division multiplexing; if only two transmit channels transmit a third radio frequency signal, this The two transmit channels can also transmit two relatively orthogonal third RF signals.

It can be seen that the third radio frequency signal respectively sent by at least two transmitting channels in the transceiver A passes through the feeder B, the auxiliary amplifier and the base station which may be set between the feeder B and the delay correction device. After one or any of the functional units (devices), the delay correction device, and each antenna in the antenna group C, such as an external filter and a splitter, return to the delay correction device, and the delay correction device will The fourth RF signal obtained by mixing the three RF signals is respectively returned to any of the receiving channels in the transceiver A.

Since the transceiver A receives at least two fourth RF signals as the same receiving channel, the transceiver A can use the receiving time of any fourth RF signal received by the receiving channel as a reference. Obtaining a delay between each of the at least two transmitting channels and the receiving channel of the channel, and obtaining a delay between the fourth RF signals received by the receiving channel of the channel, thereby obtaining at least two paths The delay between the transmission channels, and thus the delay correction of at least two transmission channels based on the obtained delay. The delay between the at least two transmit channels obtained by the delay correction device provided by the embodiment of the present invention may include the delay of the feeder B connected to the transceiver A, the delay of the delay correction device itself, and the antenna group. The delay between the antennas in C; in addition, it may further include one or any of a plurality of tower amplifiers, base station external filters, and splitters that may be disposed between the feeder B and the delay correction device. The delay of the functional unit (device), therefore, improves the accuracy of the obtained delay between at least two transmission channels, thereby improving the delay correction accuracy and satisfying the delay error requirement of the closed-loop MIMO.

The delay correction device provided in this embodiment sequentially passes the radio frequency signals emitted by at least two transmitting channels in the transceiver through the feeder, the feeder and the delay correction device, and the external amplifier and the base station external filter. One or any of the functional units (devices) and the antenna group are mixed after the splitter, and the respective RF signals obtained after the mixing are respectively returned to any receiving channel in the transceiver, thereby enabling the transceiver The delay between at least two transmitting channels can be obtained based on the receiving time of one RF signal received by the receiving channel, thereby improving the accuracy of the obtained delay of at least two transmitting channels and improving the accuracy of delay correction. , meets the delay error requirements of closed-loop MIMO. Similar to the embodiment shown in FIG. 2, the embodiment of the present invention further provides another embodiment of a delay correction device for correcting at least two transmission channels based on any RF signal received by one receiving channel. For a structural diagram of an example, see FIG. 2, in the delay correction device:

The first transceiver interface 1 may include at least two first transceiver ports 11 , each of the first transceiver ports 11 corresponding to at least one pair of transmit channels and receive channels in the transceiver A; Correspondingly, the second transceiver interface 2 can include at least two second transceiver ports 21, and each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C. That is, the number of the first transceiver port 11 and the number of the second transceiver port 21 are equal to the number of antennas in the antenna group C, respectively, and one first transceiver port 11 can correspond to a pair of transmission channels and reception channels, It can correspond to multiple pairs of transmit channels and receive channels. In this embodiment, a specific structural embodiment of the radio frequency unit 3 is further provided. The radio frequency unit 3 may include: a local frequency oscillator 31, a mixing device 32, and at least two couplers 34;

The mixing device 32 can be configured to mix at least two third RF signals and the local oscillator RF signals returned by the antenna group C received by the second transceiver interface 2 to obtain at least two fourth RF signals, and respectively Transmitting at least two fourth RF signals to any one of the at least two couplers 34;

Either of the at least two couplers 34 corresponds to at least one of the transmit channel and the receive channel of the transceiver A and one of the antenna groups C, and may be used for transmitting the third RF of the corresponding transmit channel The signal is coupled to the second transceiver interface 2, so that the third RF signal is sent to the corresponding antenna through the second transceiver interface 2, and can be used to couple the third RF signal returned by the corresponding antenna received by the second transceiver interface 2 to The mixing device 32 can also be configured to couple the fourth RF signal obtained by the mixing device 32 to the first transceiver interface 1 to transmit the fourth RF signal to the corresponding receiving channel through the first transceiver interface 1.

It should be noted that, in an implementation scenario of the embodiment of the present invention, each first transceiver port

11 corresponds to at least one pair of transmitting channel and receiving channel in the transceiver A, for example: Assume that the transceiver A shown in FIG. 1 has two pairs of transmitting channels and receiving channels, respectively: transmitting channel 1 And receive channel 1, transmit channel 2 and receive channel 2. For example, as shown in FIG. 2, the first transceiver port 11a may correspond to the transmitting channel 1 and the receiving channel 1 as an interface unit of the transmitting channel 1 and the receiving channel 1 and the delay correction device; the first transceiver port 1 lb It can correspond to the transmitting channel 2 and the receiving channel 2 as an interface unit of the transmitting channel 2 and the receiving channel 2 and the delay correction device.

Each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C. For example, it is assumed that the antenna group C shown in FIG. 1 includes two antennas, respectively, an antenna C. 1 and the antenna C2, the second transceiver port 21a shown in FIG. 2 can also correspond to the first transceiver port 11a and the antenna C1 respectively. After the first transceiver port 11a receives the third RF signal, The radio frequency unit 3 can couple the third radio frequency signal to the second transceiver port 21a, so that the second transceiver port 21a sends the third radio frequency signal to the antenna C1. Similarly, the second transceiver port 21b shown in FIG. 2 can be respectively Corresponding to the first transceiver port 1 ib and the antenna C2, after the first transceiver port 1 ib receives the third RF signal, the RF unit 3 can couple the third RF signal to the second transceiver port 21b, so that the second transceiver Port 21b transmits the third radio frequency signal to antenna C2. The first transceiver interface 1 may further include at least two first transceiver ports 11, and each of the first transceiver ports 11 corresponds to at least one pair of transmission channels and reception channels in the transceiver A; the second transceiver interface 2 may Further comprising at least two second transceiver ports 21, and each of the second transceiver ports 21 corresponds to one of the first transceiver port 11 and the antenna group C, respectively. Therefore, in the implementation scenario of the embodiment, a coupler 34 can correspond to a first transceiver port 11 and a second transceiver port 21. For example, the coupler 34a shown in FIG. 2 can couple the third radio frequency signal received by the corresponding first transceiver port 11a to the corresponding second transceiver port 21a, so that the third radio frequency signal is sent to the second transceiver port 21a to the second transceiver port 21a. Corresponding antennas, and the coupler 34a can couple the third RF signal received by the corresponding second transceiver port 21a to the mixing device 32. Further, the coupler 34 can also couple the fourth radio frequency signal obtained by the mixing device 32 to the first transceiver port 11 corresponding to any receiving channel, so that the fourth radio frequency signal is received from the first transceiver port 11 Send to the receiving channel. For example, the coupler 34a shown in FIG. 2 can couple the fourth radio frequency signal obtained by the mixing device 32 to the corresponding first transceiver port 11a, so that the first transceiver port 11a sends the fourth radio frequency signal to the corresponding receiving. Channel 1.

In this embodiment, the fourth radio frequency signal obtained by mixing each of the third radio frequency signals is sent to the same receiving channel. Therefore, the first power splitter 33 may not be needed in this embodiment.

Still, the transceiver A includes two pairs of transmitting channels and receiving channels: transmitting channel 1 and receiving channel 1, and transmitting channel 2 and receiving channel 2; antenna group C includes 2 antennas: antenna C1 and antenna C2 are taken as an example for description . The first transceiver interface 1 shown in FIG. 2 includes two first transceiver ports 11, which are respectively a first transceiver port 11a and a first transceiver port 1 ib; and a second transceiver interface 2 includes two second transceiver ports 21, respectively It is a second transceiver port 21a and a second transceiver port 21b; the RF unit 3 includes two couplers 34, which are a coupler 34a and a coupler 34b, respectively. The transmitting channel 1 and the receiving channel 1 respectively correspond to the first transceiver port l la, the second transceiver port 21a, the antenna C1 and the coupler 34a; the transmitting channel 2 and the receiving channel 2 are respectively associated with the first transceiver port 11b, The second transceiver port 21b, the antenna C2, and the coupler 34b correspond to each other. The transmitting channel 1 in the transceiver A sends out a third RF signal through the feeder B, the feeder B and the delay correction device, which may be provided with an on-stage amplifier, a base station external filter, a splitter, etc. one or more After the functional device (device) is received by the first transceiver port 11a, the coupler 34a couples the third RF signal to the second transceiver port 21a, so that the third RF signal is transmitted to the antenna C1 through the second transceiver port 21a, and the antenna C2 can receive the third RF signal sent by the antenna C1 through the electromagnetic wave, the antenna C2 returns the third RF signal to the second transceiver port 21b, and the coupler 34b couples the third RF signal returned by the second transceiver port 21b to the hybrid The frequency component 32, the mixing device 32 mixes the third RF signal with the local oscillator RF signal generated by the local frequency oscillator 31 to obtain a fourth RF signal (the frequency of the fourth RF signal and the transceiver A The receiving frequency of the worker is matched, and the coupler 34a couples the fourth radio frequency signal to the first transceiver port 11a, so that the fourth radio frequency signal is sent to the corresponding interface through the first transceiver port 11a. Channel 1. Similarly, the third radio frequency signal sent by the transmitting channel 2 is received by the first transceiver port 1 ib, coupled to the second transceiver port 21b by the coupler 34b, and sent to the antenna C2 through the second transceiver port 21b, and the antenna C1 receives After the third RF signal is returned to the second transceiver port 21a, the coupler 34a sends the third RF signal to the mixing device 32 for mixing, and the coupler 34a couples the obtained fourth RF signal to The first transceiver port 11a is configured to send the fourth radio frequency signal to the corresponding receiving channel 1 through the first transceiver port 11a.

2 shows the case where the output of the mixing device 32 is connected to the coupler 34a, that is, the mixing device 32 sends each of the obtained fourth RF signals to the coupler 34a so that the coupler 34a will each The four radio frequency signals are all coupled to the first transceiver port 11a, so that each fourth radio frequency signal is sent to the receiving channel 1 through the first transceiver port 1 la, thereby implementing the transceiver A to receive any path received by the channel 1. The receiving time of the four radio frequency signals is used as a reference to correct the delay between the transmitting channel 1 and the transmitting channel 2; as another possible embodiment, the output of the mixing device 32 can also be connected to the coupler 34b. In an implementation scenario, the coupler 34b can couple each fourth RF signal to the first transceiver port 1 ib so that each fourth RF signal is sent to the receiving channel 2 through the first transceiver port 1 ib, thereby implementing The receiving time of the fourth radio frequency signal received by the receiving channel 2 is used as a reference, and the delay between the transmitting channel 1 and the transmitting channel 2 is corrected.

After the receiving channel 1 receives the fourth radio frequency signal corresponding to the third radio frequency signal transmitted by the transmitting channel 1 and the fourth radio frequency signal corresponding to the third radio frequency signal transmitted by the transmitting channel 2, the transceiver A can respectively obtain the transmitting channel 1 and Receive delay between channel 1, and transmit channel 2 and receive The delay between the channels 1 can also obtain the delay between the two fourth RF signals received by the receiving channel 1, and the receiving time of the fourth RF signal that any transceiver A can receive on the receiving channel 1 For the reference, the delay between the transmitting channel 1 and the transmitting channel 2 is obtained, and then the delay correction of the transmitting channel 1 and the transmitting channel 2 can be performed based on the obtained delay.

Due to a certain port in the second transceiver interface 2, for example, after the second transceiver port 21a sends a third RF signal to the corresponding antenna C1, the third RF signal may also partially return to the second transceiver port 21a and pass through The coupler 34a enters the mixing device 32, thereby causing an interference signal when the mixer 32 mixes the third RF signal returned by the antenna C2 received by the second transceiver port 21b, and accordingly, in the present embodiment In an implementation scenario, if at least two transmit channels in the transceiver A transmit the third RF signal in a time division multiplexing manner, the second power splitter 35 may be further disposed between any two couplers 34. A first switching device 36 may be disposed between the power splitter 35 and each coupler 34, each of the first switching devices may correspond to a matching load 37; the second power splitter 35 may be coupled to the mixing device 32;

Wherein, when any one of the two couplers 34 is connected to the second power splitter 35 through the first switching device 36, the other coupler is connected to the corresponding matching load 37 through the first switching device 36, so that two The third radio frequency signal returned by the antenna corresponding to one of the couplers 34 passes through the second power splitter 35 to the mixing device 32, and the third radio frequency signal returned by the corresponding antenna of the other coupler 34 is absorbed by the matching load 37. .

As shown in FIG. 2, a second power splitter 35 may be disposed between the coupler 34a and the coupler 34b. The first switch device 36a may be disposed between the second power splitter 35 and the coupler 34a. The first switch The device 36a also corresponds to a matching load 37a; likewise, a first switching device 36b is provided between the second power splitter 35 and the coupler 34b, the first switching device 36b also corresponding to a matching load 37b. In addition, the second power splitter 35 is also coupled to the mixing device 32.

When the transmitting channel 1 sends the third radio frequency signal to the delay correction device, the first switching device 36a can be connected to the matching load 37a, and the matching load 37a is used to absorb the third radio frequency signal returned by the antenna C1 to prevent the third radio frequency. The signal enters the mixing device 32 through the second power splitter 35; the first switching device 36b is coupled to the second power splitter 35 such that the third RF signal returned by the antenna C2 to the second transceiver port 21b passes the second power split The device 35 enters the mixing device 32.

When the transmitting channel 2 transmits the third radio frequency signal to the delay correction device, the first switching device 36a and the second power distributor 35 may be turned on, and the first switching device 36b is connected to the matching load 37b. Thereby, the third radio frequency signal returned by the antenna CI from the second transceiver port 21a passes through the second power divider 35 to the mixing device 32.

In still another implementation of this embodiment, a second switching device 38 may be further disposed between the second power splitter 35 and the mixing device 32, the second switching device 38 also corresponding to a mismatch load 39;

When the mixing device 32 is connected to the second power divider 35 through the second switching device 38, the second power divider 35 transmits the third RF signal to the mixing device 32; when the mixing device 32 passes through the second switching device 38 When the mismatch load 39 is turned on, the mismatch load 39 can be used to cause the fourth RF signal obtained by mixing the mixing device 32 to enter the coupler 34.

For example: the coupler 34a shown in Fig. 2 passes through the first switching device 36a and the second power splitter

35, the mixing device 32 can first be coupled to the second power splitter 35 via the second switching device 38 to receive the third RF signal from the coupler 34a. After the mixing device 32 mixes the third RF signal to obtain the fourth RF signal, the mixing device 32 can be connected to the mismatched load 39 through the second switching device 38, because the mismatched load 39 acts as a reflected signal. Therefore, the mismatch load 39 can sufficiently pass the fourth RF signal obtained by mixing the mixing device 32 into the coupler 34a. Based on the foregoing embodiments, the delay correction device provided by the embodiment of the present invention can start working under the trigger of the transceiver A. FIG. 3 is a schematic structural diagram of another embodiment of a delay correction apparatus according to the present invention. On the basis of the foregoing delay correction apparatus embodiment, in this embodiment, the delay correction apparatus may further include: a receiving interface 4 and The digital processing unit 5; wherein: the receiving interface 4 is configured to receive the power output of the transceiver A, and receive the wake-up command or the start command sent by the transceiver A;

The digital processing unit 5 can be configured to receive the power output of the transceiver through the receiving interface 4; switch from the power saving mode to the normal working mode according to the wake-up command received by the receiving interface 4, and control the radio frequency unit 3 to receive and receive through the digital processing unit 5. The power output of the letter A is controlled, and the radio frequency unit 3 is controlled to switch from the power saving mode to the normal working mode. According to the start command received by the receiving interface 4, the first transceiver interface 1, the second transceiver interface 2 and the radio frequency unit 3 are respectively activated.

The receiving interface 4 is an interface between the digital processing unit 5 and the transceiver A in the delay correction device, and the interface can follow the wireless interface standardization organization in an implementation scenario (Antenna) Interface Standards Group, AISG) protocol. If one or any of several functional devices (devices) such as an amplifier on the tower, an external filter of the base station, and a splitter are connected between the feeder B and the delay correction device, the transceiver A can also pass these functional devices. (Device) Transparently transmits a wake-up command and a start command to the delay correction device. In addition, it should be noted that the receiving interface 4 in the delay correction device can be connected to the power supply unit of the transceiver A through the power line, thereby receiving the power output from the power supply unit on the transceiver A. If one or any of several functional devices (devices) such as an amplifier on the tower, an external filter of the base station, and a splitter are connected between the feeder B and the delay correction device, the receiving interface 4 in the delay correction device is also It can be connected to the power supply interface of functional devices (devices) such as tower amplifier, base station external filter, and splitter through the power cable. The power supply interface of these devices can also be connected to the power supply unit of transceiver A through the power cable. So), the receiving interface 4 in the delay correction device can receive and receive the transceiver through the function device (device) such as the tower amplifier, the base station external filter or the splitter set between the feeder B and the delay correction device. The power output of machine A.

The digital processing unit 5 can be a Micro Control Unit (MCU), programmable logic (eg, Field-Programmable Gate Array (FPGA) or Erasable Programmable Logic (Erasable Programmable Logic). Devices such as Device, EPLD)) have digital processing functions.

As shown in FIG. 3, in the delay correction device provided in this embodiment, the receiving interface 4 serves as a power interface between the digital processing unit 5 and the transceiver A, and the power cable is connected between the receiving interface 4 and the transceiver A. Signal line connection (the power line and the signal line in Figure 3 are identified by a1); the digital processing unit 5 and the receiving interface 4 are connected by a power line and a signal line (the power line and the signal line are both identified by a2); the digital processing unit 5 is connected to the radio frequency unit 3 through a power line and a signal line (the power line and the signal line are both identified by a3); the digital processing unit 5 and the first transceiver interface 1 are identified by a signal line a4; the digital processing unit 5 and the The two transceiver interfaces 2 are identified by a signal line a5.

After the receiving interface 4 receives the wake-up command from the transceiver A through the signal line a1, the receiving interface 4 transmits the command to the digital processing unit 5 via the signal line a2, and the digital processing unit 5 can switch from the power-saving mode according to the wake-up command. Up to the normal working mode; the digital processing unit 5 can also cause the radio frequency unit 3 to receive the power output from the transceiver through the power line a3, and control the radio frequency unit 3 to switch from the power saving mode to the normal working mode through the signal line a3. After the receiving interface 4 receives the start command from the transceiver A, the digital processing unit 5 can start the first transceiver interface 1 through the signal line a4 to start receiving the first RF signal sent by the transceiver A or the first according to the start command. Three RF signals No., the second transceiver interface 2 is started to start working through the signal line a5, and the RF unit 3 is started to start working through the signal line a3.

In an implementation scenario of the embodiment, the delay correction device may further include a cascade interface 6 for receiving a control command sent by the transceiver A, and transparently transmitting the control command to the delay correction device. Primary cascade device. The next-stage cascading device may be a device or device such as a Tower Mounted Amplifier (TMA), a Remote Control Unit (RCU), or an antenna group. For example, in the implementation scenario where the next-stage cascade device is a tower, the control command sent by the transceiver A may be an ESC and a control command, and the ESC and control commands may be sent to the ESC and control interface in the tower. Instructing to perform the adjustment of the filter parameters in the tower, etc.; in the implementation scenario where the next-stage cascaded device is an antenna group, the control command sent by the transceiver A can be sent to the signaling interface in the antenna group, the control The command can be used to indicate that the downtilt angle of the antenna in the antenna group is adjusted. Other implementation scenarios are not - enumerated.

It should be noted that, in the implementation scenario where the tower B is disposed between the feeder B and the delay correction device, the ESC and control interface in the tower may not be directly connected to the transceiver A, but may be corrected with delay. The receiving interface 4 in the device is connected, so that the receiving command sent by the transceiver A is transparently transmitted through the receiving interface 4 in the delay correcting device. Therefore, in this implementation scenario, the tower can also be regarded as a time delay device. The next cascaded device connected.

The cascading interface 6 can serve as an interface for transmitting or transmitting messages between the delay correction device and the next cascading device. As a possible implementation, the cascading interface 6 can be connected to the command output port in the transceiver A, so as to directly transmit the control command sent by the transceiver A to the next cascading device; If one or any of several functional devices (devices) such as an amplifier on the tower, an external filter of the base station, and a splitter are connected between the feeder B and the delay correction device, the cascade interface 6 can also be connected to these functional devices. (Device) command output port connection, for example: Connect to the tuned and tower control interface of the amplifier on the tower. The command output port of these functional devices (devices) can transparently transmit the control commands sent by transceiver A to the delay correction. The cascade interface 6 of the device is configured to enable the cascade interface 6 of the delay correction device to transparently transmit the received control command to the next cascade device.

As another possible implementation, the cascade interface 6 can also be connected to the digital processing unit 5 in the delay correction device, and the digital processing unit 5 receives the control command issued by the transceiver A, or the feeder B and the delay correction. After a control command transmitted by one or more functional devices (devices), such as an amplifier on the tower, an external filter of the base station, and a splitter, which may be set between devices, the first decision may be made. The control command needs to be transparently transmitted to the next-level cascade device. If necessary, the control command is transparently transmitted to the next-level cascade device through the cascade interface 6.

Referring to the implementation of the foregoing embodiment, the embodiment of the present invention further provides a feasible structure of the digital processing unit. As shown in FIG. 4, the digital processing unit 5 may include: a power conversion module 51, a power control module 52, and a processing module 53. ; among them:

The power conversion module 51 can be configured to convert a power supply voltage outputted by the transceiver A received through the receiving interface 4 to match the converted power supply voltage with the delay correction device;

The power control module 52 can be used to output the power supply voltage outputted by the transceiver A converted by the power conversion module 51 to the radio frequency unit 3 under the control of the processing module 53;

The processing module 53 can be configured to switch from the power saving mode to the normal working mode according to the wakeup command received by the receiving interface 4, and control the power supply voltage outputted by the power supply control module 52 to be output by the transceiver A converted by the power conversion module 51. Giving the radio frequency unit 3, and controlling the radio frequency unit 3 to switch from the power saving mode to the normal working mode; outputting a switch control command to the radio frequency unit according to the start command received by the receiving interface, to control each of the switching devices in the radio frequency unit 3 to be connected to the corresponding The device performs corresponding operations; and can also be configured to configure a frequency of the local oscillator radio frequency signal used for mixing the third radio frequency signal in the radio frequency unit 3, so that the frequency of the fourth radio frequency signal is compared with the receiving frequency of at least two receiving channels. match.

FIG. 5 is a schematic diagram of signal transmission between modules in a digital processing unit. As shown in FIG. 5, in the digital processing unit 5, power is taken from the receiving interface 4 through the power line bl, and the power is obtained from the power line bl. The power supply voltage conversion is performed by the power conversion module 51, and then output to the processing module 53 through the power supply line b9 to match the converted power supply voltage with the processing module 53 in the delay correction device. After receiving the wake-up command or the start command sent by the transceiver A, the wake-up command or the start command is transmitted to the processing module 53 through the signal line b2. The processing module 53 controls the power supply control module 52 through the signal line b6, and the power supply voltage converted from the power supply line b5 and converted by the power conversion module 51 is output to the radio frequency unit 3 through the power supply line b9, so that the converted power supply voltage is timely. The radio frequency unit 3 in the delay correction device is matched. The processing module 53 can also output a switch control command to the radio frequency unit 3 through the signal line b7 to control each of the switching devices in the radio frequency unit 3 to be connected to the corresponding device to perform a corresponding operation. The processing module 53 can also output a configuration signal to the radio frequency unit 3 through the signal line b8 to configure the frequency of the local oscillator radio frequency signal for mixing the third radio frequency signal, so that the frequency of the fourth radio frequency signal and at least two channels are received. The receiving frequency of the channel matches. In addition, after receiving the control command sent by the transceiver A received by the interface 4, the power can be output to the cascade interface 6 through the power line b3, so that the cascade interface 6 can transparently transmit the control command. The receiving interface 4 can also transmit the control command to the processing module 53 through the signal line b2. The processing module 53 can determine whether the control command needs to be transparently transmitted to the next-stage cascade device. If necessary, the processing module 53 can pass the signal line b4. The control command is sent to the cascade interface 6 to enable the cascade interface to transparently transmit the control command to the next-level cascade device.

Referring to the foregoing delay correction device and its function implementation provided by the embodiment of the present invention, FIG. 6 is a flowchart of an embodiment of a processing operation performed by a processing module in a digital processing unit, as shown in FIG. 6, specifically including the following Steps:

S601. The control radio unit is powered on;

5602. Complete initialization state configuration.

Specifically, the operation includes: configuring a frequency of a local oscillator RF signal generated by the local frequency oscillator 31 in the radio frequency unit 3, and the like.

S603. The processing module enters a power saving mode waiting for a wake-up command or a start command.

S604. Determine whether the scan is completed, if yes, execute S605, otherwise return to execute S603;

The processing module may scan the port receiving the command at intervals to monitor whether the port receiving the command receives the wake-up command or the start command.

S605. The processing module configures the radio unit, the power conversion module, and the power control module to enter a power saving mode.

S606. The processing module acquires a wake-up command, and controls the power conversion module, the power control module, and the processing module to switch from the power saving mode to the normal working mode, and controls the power supply voltage output by the power control module to be converted by the power conversion module. Giving the radio frequency unit and controlling the radio frequency unit to switch from the power saving mode to the normal working mode;

S607. The processing module acquires a startup command sent by the transceiver.

S608. Output a switch control command to the radio frequency unit according to the start command, to control each switch device in the radio frequency unit to be connected to the corresponding device to perform a corresponding operation;

5609. Wait for other commands of the transceiver to start a timer.

5610. Determine whether a completion command sent by the transceiver is received, if yes, execute S605; otherwise, return to execute S61 1;

S61 1. Determine whether the timing condition is satisfied. If yes, return to execution S605, otherwise return to execute S609. Referring to the implementation of the foregoing embodiment, as shown in FIG. 7 and FIG. 8, FIG. 7 is a schematic structural diagram of an embodiment of a delay correction system according to the present invention, and FIG. 8 is still another embodiment of a delay correction system according to the present invention. Schematic. As shown in FIG. 7 and FIG. 8, the system includes: a transceiver A and an antenna group C, and a delay correction device D is disposed between the transceiver A and the antenna group C;

The delay correction device D includes: a first transceiver interface, a second transceiver interface, and a radio frequency unit; and a first transceiver interface, which can be used to communicate with the transceiver;

The second transceiver interface can be used to communicate with the antenna group;

As a possible implementation, the radio frequency unit may be configured to couple the first radio frequency signal sent by any one of the transceiver channels received by the first transceiver interface to the second transceiver interface to enable the first radio frequency signal. The second radio frequency signal is sent to the antenna group C through the second transceiver interface; and the first radio frequency signal returned by the antenna group C received by the second transceiver interface is mixed, and the obtained second radio frequency signal is coupled to the first transceiver interface. The second radio frequency signal is respectively sent to at least two receiving channels in the transceiver A through the first transceiver interface. Transceiver A Antenna Group C Antenna Group C Transceiver A Transceiver.

As another possible implementation manner, the radio frequency unit may be further configured to: couple at least two third radio frequency signals sent by at least two transmit channels in the transceiver A received by the first transceiver interface to the second transceiver interface So that at least two third radio frequency signals are respectively sent to the antenna group C through the second transceiver interface; and can be used to mix at least two third radio frequency signals returned by the antenna group C received by the second transceiver interface, respectively. And obtaining at least two fourth radio frequency signals respectively coupled to the first transceiver interface, so that at least two fourth radio frequency signals are respectively sent to any one of the transceiver channels A of the transceiver A through the first transceiver interface. Group C antenna group C transceiver A transceiver A.

The Base Band Unit (BBU) shown in Figures 7 and 8 is used to configure the transceiver, for example: configuring the frequency of each transmit channel or receive channel in the transceiver, and indicating the use of the transceiver Which channels and so on.

In an implementation scenario of this embodiment, in the delay correction system provided by the embodiment of the present invention, the delay correction device D may be disposed between the feeder B and the antenna group C connected to the transceiver A.

In another implementation scenario of this embodiment, one or any combination of the following types of devices may be connected between the feeder B and the delay correction device D connected to the transceiver A: Base station external filter and combiner. FIG. 7 shows a case where the delay correction device D is independently set. In other implementation scenarios of the embodiment, the delay correction device D can also be connected to the feeder B and the delay correction device D connected to the transceiver A. At least one device integration setting for the connection. These devices can be towers, base station external filters or splitters.

Figure 8 shows the integration of the delay correction device D with the tower. Among them, the electric control and tower discharge control interface in the tower is the interface of the tower to receive the control command issued by the transceiver A or the previous cascade of the tower. In an implementation scenario of the embodiment of the present invention, the ESC and the tower discharge control interface in the tower can be connected with the cascade interface that can be optionally set in the delay correction device provided by the embodiment of the present invention, and the ESC and the control in the tower discharge. The interface can transparently transmit the control commands sent by the transceiver A or the previous cascaded device of the tower to the cascade interface.

Transceiver A can use existing multi-media methods, for example: and calculate the delay between at least two transmit channels, or the delay between at least two receive channels, for performing an Error Vector Magnitude (EVM) .

For the specific structure and function of the delay correction device D, reference may be made to the delay correction device embodiment provided by the present invention, which is not described herein.

The delay correction system provided by this embodiment, the delay correction device, the tower amplifier of the integrated delay correction device, or the combiner of the integrated delay correction device, etc., can transmit the RF generated by any of the transmitting channels of the transceiver. The signal is sequentially mixed by one or any of the functional units (devices) and the antenna group, which may be disposed between the feeder, the feeder and the delay correction device, and the antenna group, and the antenna group. The RF signal obtained after mixing is returned to at least two receiving channels in the transceiver, so that the transceiver can obtain the delay between at least two receiving channels based on the transmitting time of the transmitting channel. The accuracy of the obtained delay of at least two receiving channels is improved, the delay correction accuracy is improved, and the delay error requirement of the closed-loop MIMO is satisfied. Alternatively, the delay correction device, the tower amplifier of the integrated delay correction device, or the combiner of the integrated delay correction device may also sequentially pass the RF signals emitted by at least two transmit channels in the transceiver through the feeder and the feeder. Mixing one or any of several functional units (devices) and antenna groups, such as an on-stage amplifier, a base station external filter, and a splitter, which may be provided between the delay correction device and the antenna group, and then mixing the obtained RF Each signal is returned to any of the receiving channels of the transceiver, so that the transceiver can obtain the delay between at least two transmitting channels based on the receiving time of one RF signal received by the receiving channel, thereby Increased at least two passes The accuracy of the channel delay improves the accuracy of delay correction and satisfies the delay error requirement of closed-loop MIMO. The delay correction device D can be integrated with at least one device connected between the feeder B and the delay correction device D connected to the transceiver A, and the present invention further provides an embodiment of the amplifier on the tower, with reference to the foregoing The delay correction device and its function implementation disclosed in the embodiment, as shown in FIG. 9, the tower amplifier may include: at least one filter bank E and a delay correction device D, a delay correction device D and at least one filter Group E connection.

The delay correction device D may include: a first transceiver interface 1, a second transceiver interface 2, and a radio frequency unit 3;

The first transceiver interface 1 can be used for communicating with the transceiver;

The second transceiver interface 2 can be used for communicating with the antenna group;

As a possible implementation, the radio frequency unit 3 can be configured to couple the first radio frequency signal sent by any one of the transceiver channels A received by the first transceiver interface 1 to the second transceiver interface 2, so that An RF signal is sent to the antenna group C through the second transceiver interface; and can be used for mixing the first RF signal returned by the antenna group C received by the second transceiver interface, and coupling the obtained second RF signal to the first transceiver. The interface is configured to send the second radio frequency signal to the at least two receiving channels in the transceiver A through the first transceiver interface.

As another possible implementation manner, the radio frequency unit 3 is further configured to: couple at least two third radio frequency signals sent by at least two transmit channels in the transceiver A received by the first transceiver interface 1 to the second Transceiving the interface 2, so that at least two third radio frequency signals are respectively sent to the antenna group C through the second transceiver interface 2; and can be used for at least two third radio frequency signals returned by the antenna group C received by the second transceiver interface 2 Performing mixing separately, and coupling the obtained at least two fourth radio frequency signals to the first transceiver interface 1 respectively, so that at least two fourth radio frequency signals are respectively sent to any one of the transceivers A through the first transceiver interface. aisle.

It should be noted that, in FIG. 9, a scenario in which the amplifier on the tower includes two sets of filter banks E, in this scenario, the first transceiver interface 1 may include a first transceiver port 11a and a first transceiver port 1 lb. That is, each group of filter banks E can correspond to a pair of transmit channels and receive channels in the transceiver A, and a first transceiver port, for example: the filter bank E1 shown in FIG. 9 can be used for FIG. 8 The radio frequency signal sent by the transmitting channel 1 is transparently transmitted to the first transceiver port 11a, and the filter bank E2 can be used to transparently transmit the radio frequency signal sent by the transmitting channel 2 to the first transceiver port 1 lb. As a possible implementation, the amplifier on the tower provided by the embodiment of the present invention can be directly connected to the delay correction device provided by the embodiment of the present invention by using an existing tower amplifier. For details, refer to the tower amplifier in FIG. The delay correction device is connected. In this implementation scenario, the overall structure of the existing tower amplifier and the complete structure of the delay correction device provided by the embodiment of the present invention are retained in the tower amplifier provided in this embodiment.

However, as another feasible implementation manner, after the delay correction device is integrated on the amplifier on the tower, the filter bank E and the delay correction device D as a whole, between the filter bank E and the radio frequency unit 3 The first transceiver interface 1 is no longer provided. In this implementation scenario, the first transceiver interface 1 can serve as an interface unit between the tower amplifier and the transceiver A formed by the filter bank E and the delay correction device. That is, the first transceiver interface 1 can be disposed between the transceiver A and the at least one filter group E. Therefore, in an implementation scenario of the embodiment, at least one filter bank E can receive the first radio frequency signal sent by any one of the transceiver channels in the first transceiver interface 1 and pass the first radio frequency signal. And transmitting to the radio frequency unit 3; and receiving the second radio frequency signal sent by the radio frequency unit 3, and transparently transmitting the second radio frequency signal to the first transceiver interface 1, so that the second radio frequency signal is separately sent to the transceiver through the first transceiver interface 1. At least two receiving channels in the letter A.

In another implementation scenario of the embodiment, at least one filter bank E can receive at least two third RF signals transmitted from at least two transmit channels in the transceiver A through the first transceiver interface 1, and the third The radio frequency signals are respectively transmitted to the radio frequency unit 3; and are used for receiving at least two fourth radio frequency signals sent by the radio frequency unit 3, and transparently transmitting at least two fourth radio frequency signals to the first transceiver interface 1 to enable at least two paths. The fourth radio frequency signal is sent to any of the transceiver channels in the transceiver A through the first transceiver interface 1 respectively.

It can be understood that, as another feasible implementation manner, the filter bank E and the delay correction device as a whole, the interface between the transceiver and the transceiver A can be reused in the existing tower amplifier and The interface between transceivers A. In this implementation scenario, the first transceiver interface 1 may not be provided in the delay correction device D, but the RF signal transmitted by the transceiver A is received by the filter bank E, and the transceiver group E is transmitted and received. Machine A sends a radio frequency signal.

In another embodiment of the tower amplifier provided by the present invention, as shown in FIG. 10, the on-stage amplifier may further include: an electrical adjustment and control interface F, the interface may be used to receive a wake-up command sent by the transceiver A or The command is started, and the wake-up command or the start command is transparently transmitted to the receiving interface 4 in the delay correction device D. In another implementation scenario, the ESC and control interface F can also be used to: receive a control command sent by the transceiver A, and transparently transmit the control command to the cascade interface 6 of the delay correction device D.

In addition to the basic structure of the transmitting channel and the receiving channel, the transceiver A is usually provided with a control unit or a processing unit, and can be used to send a wake-up command and a start command to each device connected to the transceiver A. Or control commands, etc., the ESC and control interface F in the amplifier on the tower can be connected to a control unit or processing unit (not shown) that issues various commands in the transceiver A to receive from the transceiver A. A wake-up command, a start command, or a control command. Similar to the cascade interface 6 in the delay correction device D, the ESC and control interface F in the amplifier on the tower can also follow the AISG protocol.

It should be noted that, in the embodiment of the tower amplifier provided by the present invention, the functional descriptions of other specific structures or components in the amplifier on the tower are omitted, and only the component descriptions related to the delay correction device D are provided, but The implementation of other normal functions of the amplifier on the tower provided by the present invention is not affected. In addition, other specific structures and functions of the delay correction device D can be referred to the embodiment of the delay correction device provided by the present invention, and details are not described herein again.

The amplifier on the tower provided in this embodiment can sequentially transmit the radio frequency signal sent by any one of the transmitting channels through the feeder, the external filter, the splitter, etc., which may be set between the feeder, the feeder and the delay correction device. Or any of the functional units (devices) and the antenna group are mixed, and the mixed RF signals are returned to at least two receiving channels in the transceiver, so that the transceiver can transmit the RF signals of the channel. The transmission time is used as a reference to obtain a delay between at least two receiving channels, thereby improving the accuracy of the obtained at least two receiving channel delays, improving the delay correction accuracy, and satisfying the delay error requirement of the closed-loop MIMO. The at least one device based on the connection between the delay correction device and the feeder and the delay correction device connected to the transceiver is integrated. Referring to the implementation of the delay correction device and its function disclosed in the foregoing embodiments, the present invention further provides An embodiment of a combiner, the combiner can include: at least one filter and a delay correction device coupled to the at least one filter.

The delay correction device may include: a first transceiver interface, a second transceiver interface, and a radio frequency unit;

The first transceiver interface can be used to communicate with the transceiver;

The second transceiver interface can be used to communicate with the antenna group; As a possible implementation, the radio frequency unit may be configured to couple the first radio frequency signal sent by any one of the transceivers received by the first transceiver interface to the second transceiver interface, so that the first radio frequency signal passes The second transceiver interface is sent to the antenna group; and the second RF signal returned by the antenna group received by the second transceiver interface is mixed, and the obtained second RF signal is coupled to the first transceiver interface, so that the second The radio frequency signals are respectively sent to at least two receiving channels in the transceiver through the first transceiver interface.

As another possible implementation manner, the radio frequency unit may be further configured to: couple at least two third radio frequency signals sent by at least two transmit channels in the transceiver received by the first transceiver interface to the second transceiver interface, respectively. The at least two third radio frequency signals are respectively sent to the antenna group through the second transceiver interface; and the at least two third radio frequency signals returned by the antenna group received by the second transceiver interface are separately mixed, and the obtained The at least two fourth radio frequency signals are respectively coupled to the first transceiver interface, so that the at least two fourth radio frequency signals are respectively sent to any one of the transceiver channels A through the first transceiver interface.

As a possible implementation, the combiner provided by the embodiment of the present invention can be directly connected to the delay correction device provided by the embodiment of the present invention by using an existing combiner. In this implementation scenario, the implementation is implemented. The complete structure of the existing combiner and the complete structure of the delay correction apparatus provided by the embodiment of the present invention are retained in the combiner provided by the example.

However, as another feasible implementation manner, after the delay correction device is integrated on the combiner, at least one filter and the delay correction device as a whole may be no longer between at least one filter and the radio frequency unit The first transceiver interface is set. In this implementation scenario, the first transceiver interface can serve as an interface unit between the tower amplifier and the transceiver formed by at least one filter and delay correction device. That is, the first transceiving interface can be disposed between the transceiver and the at least one filter. Therefore, in an implementation scenario of the embodiment, the at least one filter may receive the first radio frequency signal sent by any one of the transmitting channels of the transceiver through the first transceiver interface, and transparently transmit the first radio frequency signal to the radio frequency unit; The second radio frequency signal sent by the radio frequency unit is received, and the second radio frequency signal is transparently transmitted to the first transceiver interface, so that the second radio frequency signal is respectively sent to the at least two receiving channels in the transceiver through the first transceiver interface.

In another implementation scenario of the embodiment, the at least one filter may receive at least two third radio frequency signals sent by at least two transmit channels in the transceiver through the first transceiver interface, and transparently transmit the third radio frequency signals respectively. To the radio unit; and for receiving at least two channels of the radio unit to transmit And transmitting, by the radio frequency signal, the at least two fourth radio frequency signals to the first transceiver interface, so that at least two fourth radio frequency signals are respectively sent to any one of the transceiver channels through the first transceiver interface.

It can be understood that, as another feasible implementation manner, at least one filter and the delay correction device as a whole, the interface between the transceiver and the transceiver can be reused in the existing combiner and transmitted and received. The interface between the machines. In this implementation scenario, the first transceiver interface may not be provided in the delay correction device, but the RF signal transmitted by the transceiver is received by at least one filter, and the RF is transmitted to the transceiver through at least one filter. signal.

It should be noted that, in the embodiment of the combiner provided by the present invention, the functional descriptions of other specific structures or components in the combiner are omitted, and only the descriptions of the components related to the delay correction device are provided, but this is not Achieving the implementation of other normal functions of the combiner provided by the present invention. In addition, other specific structures and functions of the delay correction device can be referred to the embodiment of the delay correction device provided by the present invention, and details are not described herein again.

The combiner provided in this embodiment may sequentially pass the radio frequency signal sent by any one of the transmitting channels of the transceiver to the tower amplifier, the external filter of the base station, etc., which may be disposed between the feeder, the feeder and the delay correction device, or Any of the functional units (devices) and the antenna group are mixed, and the mixed RF signals are returned to at least two receiving channels in the transceiver, so that the transceiver can transmit the RF signals of the transmitting channel. The time is used as a reference to obtain a delay between at least two receiving channels, thereby improving the accuracy of the obtained at least two receiving channel delays, improving the delay correction accuracy, and satisfying the delay error requirement of the closed-loop MIMO. Referring to the technical solutions of the foregoing embodiments, FIG. 11 is a flowchart of an embodiment of a delay correction method provided by the present invention. As shown in FIG. 11, the method includes:

S101. The delay correction device sends the first radio frequency signal sent by any one of the received transceivers to the antenna group.

S102. The delay correction device mixes the first radio frequency signal returned by the antenna group to obtain a second radio frequency signal.

S103. The delay correction device sends the second radio frequency signal to at least two receiving channels in the transceiver respectively.

At least two receiving channels in the transceiver respectively receive the second shot sent by the delay correction device After the frequency signal, the transceiver can transmit the first radio frequency signal transmission time to the delay correction device according to any of the transmission channels, and the reception time of the second radio frequency signal sent by the delay correction device received by the at least two receiving channels respectively. , determine the delay between at least two receive channels. The transceiver can correct at least two receiving channels according to the delay between at least two receiving channels.

In an implementation scenario of the embodiment of the present invention, the delay correction device may start delay correction under the trigger of the transceiver, and specifically: the delay correction device receives the wake-up command from the transceiver output, and saves power The mode is switched to the normal working mode; the delay correction device receives the start command output by the transceiver, and starts receiving the first RF signal sent from any of the transmitting channels of the transceiver.

In another implementation scenario, the delay correction device may further configure a frequency of the local oscillator radio frequency signal used for mixing the first radio frequency signal, so that the frequency of the second radio frequency signal and the receiving frequency of the at least two receiving channels are Match.

For the specific implementation process of the time delay correction method provided in this embodiment, reference may be made to the description of the embodiment of the delay correction device provided by the present invention, and details are not described herein again.

In the delay correction method provided in this embodiment, the delay correction color set between the feeder and the antenna group connected to the transceiver is received, and the RF signal sent by any of the transmitting channels in the transceiver is sequentially passed through the feeder and the feeder. Mixing one or more functional units (devices) and antenna groups, such as an on-stage amplifier, a base station external filter, and a splitter, which may be set between the B and the delay correction device, and then mixing the obtained RF The signal is returned to at least two receiving channels in the transceiver, so that the transceiver can obtain the delay between at least two receiving channels based on the time of transmitting the radio frequency signal of the transmitting channel, thereby improving at least two obtained The accuracy of the channel receiving channel delay improves the delay correction accuracy and satisfies the delay error requirement of closed-loop MIMO.

Referring to the technical solution of the foregoing embodiment, FIG. 12 is a flowchart of another embodiment of a delay correction method according to the present invention. As shown in FIG. 12, the method includes:

The delay correction device sends the third radio frequency signal respectively sent by the at least two transmit channels of the received transceiver to the antenna group.

5202. The delay correction device mixes at least two third radio frequency signals returned by the antenna group to obtain at least two fourth radio frequency signals respectively.

5203. The delay correction device respectively sends at least two fourth radio frequency signals to any one of the transceiver channels.

Any of the receiving channels in the transceiver receives at least two of the fourth channels sent by the delay correction device Sending time of the third RF signal, and receiving time of the fourth RF signal obtained by mixing each of the third RF signals sent by the delay correction device by any of the receiving channels, determining between at least two transmitting channels Delay; further, the transceiver can also correct at least two transmit channels according to a delay between at least two transmit channels.

In an implementation scenario of the embodiment of the present invention, the delay correction device may start delay correction under the trigger of the transceiver, and specifically: the delay correction device receives the wake-up command from the transceiver output, and saves power The mode switches to the normal working mode; the delay correction device receives the start command from the transceiver output, and starts receiving at least two third RF signals transmitted from at least two of the transmitting channels of the transceiver.

In another implementation scenario, the delay correction device may further configure a frequency of the local oscillator radio frequency signal used for mixing the third radio frequency signal, so that the frequency of the fourth radio frequency signal is compared with the receiving frequency of any of the receiving channels. match.

The delay correction method provided in this embodiment is configured to provide a delay correction device between the feeder and the antenna group connected to the transceiver, and sequentially transmit the radio frequency signals sent by the at least two transmit channels in the transceiver through the feeder and the feeder B. Mixing one or more functional units (devices) and antenna groups, such as an on-stage amplifier, a base station external filter, and a splitter, which may be provided between the delay correction device and the antenna group, and mixing the obtained RF signals The road signals are respectively returned to any receiving channel in the transceiver, so that the transceiver can obtain the delay between at least two transmitting channels based on the receiving time of one RF signal received by the receiving channel, thereby improving The accuracy of the obtained delay of at least two transmission channels improves the accuracy of delay correction and satisfies the delay error requirement of closed-loop MIMO.

Based on all or part of the implementation scenarios of the foregoing embodiments, correspondingly, the present invention also provides the following embodiments:

A delay correction device, comprising: a first transceiver interface for communicating with the transceiver; a second transceiver interface for communicating with the antenna group; and a radio frequency unit, configured to: Transmitting, by the second transceiver interface, the first radio frequency signal sent by any one of the transceivers received by the transceiver interface to the antenna group; and using the antenna group received by the second transceiver interface Returning the first radio frequency signal for mixing, and passing the obtained second radio frequency signal through the first Transmitting and transmitting interfaces respectively sent to at least two receiving channels of the transceiver, so that the transceiver determines the at least according to a sending time of the any one of the transmitting channels and a receiving time of the at least two receiving channels The delay between the two receiving channels.

2. The delay correction device according to 1, disposed between the feeder connected to the transceiver and the antenna group.

3. The delay correction device according to 1 or 2, wherein the first transceiver interface comprises at least two first transceiver ports, and each of the first transceiver port and the transceiver is at least one pair a transmitting channel corresponding to the receiving channel; the second transceiver interface includes at least two second transceiver ports, each of the second transceiver ports and one of the first transceiver port and the antenna group The root antenna corresponds.

4. The delay correction device according to any one of items 1 to 3, wherein the radio frequency unit comprises: a local frequency oscillator, a mixing device, a first power divider, and at least two couplers; the local frequency oscillator And generating the local oscillator radio frequency signal, and sending the local oscillator radio frequency signal to the mixing device; the mixing device, configured to return the antenna group received by the second transceiver interface Mixing the first radio frequency signal with the local oscillator radio frequency signal generated by the local frequency oscillator to obtain the second radio frequency signal; the first power divider for obtaining the mixing device The second radio frequency signal is allocated by power into at least two signals, and the at least two signals obtained by the corresponding ones respectively correspond to the at least two receiving channels; any one of the at least two couplers and the transmitting and receiving Corresponding at least one pair of transmitting channels and receiving channels and one of the antenna groups, for coupling the first radio frequency signal sent by the corresponding transmitting channel to the second Transmitting the first radio frequency signal to the corresponding antenna through the second transceiver interface, and coupling the first radio frequency signal returned by the corresponding antenna received by the second transceiver interface to the mixing The device is further configured to respectively couple at least two signals obtained by power distribution of the first power splitter from the second radio frequency signal to the first transceiver interface, so that the at least two signals pass through The first transceiver interface is respectively sent to the corresponding at least two receiving channels.

5. According to the delay correction device, a second power splitter is disposed between any two of the couplers, and a first switch is respectively disposed between the second power splitter and each of the couplers. a device, each of the first switching devices corresponding to a matching load; the second power divider being coupled to the mixing device; and any one of the two couplers passing through the first switching device When the second power splitter is connected, another coupler is matched with the corresponding by the first switching device Load connecting, so that the first radio frequency signal returned by the antenna corresponding to one of the two couplers reaches the mixing device through the second power splitter, and the first antenna corresponding to the other coupler returns the first The RF signal is absorbed by the matched load.

6. The delay correction device according to 5, wherein a second switching device is disposed between the second power splitter and the mixing device, and the second switching device corresponds to a mismatch load; The frequency device is connected to the second power splitter by the second switching device, and the second power splitter transmits the first radio frequency signal to the mixing device; the mixing device passes the The second switching device is coupled to the mismatched load, and the mismatched load is used to cause the second radio frequency signal obtained by mixing the mixing device to enter the first power splitter.

7. The delay correction device according to any one of claims 1 to 6, further comprising: a receiving interface and a digital processing unit; the receiving interface, configured to receive power output by the transceiver, and receive the transceiver a wake-up command or a start command sent by the machine; the digital processing unit, configured to receive, by the receiving interface, the power output by the transceiver; and switch from the power-saving mode to the wake-up command received by the receiving interface a normal operation mode, controlling the radio frequency unit to receive power output by the transceiver through the digital processing unit, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; according to the receiving received by the receiving interface And initiating a command, respectively starting the first transceiver interface, the second transceiver interface, and the radio unit.

8. The delay correction device of claim 7, the digital processing unit comprising: a power conversion module, a power control module, and a processing module; the power conversion module, configured to receive the transceiver by the receiving interface The power supply voltage outputted by the machine is converted to match the converted power supply voltage with the delay correction device; the power control module is configured to be transformed by the power conversion module under the control of the processing module The power supply voltage outputted by the transceiver is output to the radio frequency unit; the processing module is configured to switch from a power saving mode to a normal working mode according to the wakeup command received by the receiving interface, and control the The power control module outputs a power supply voltage outputted by the transceiver converted by the power conversion module to the radio frequency unit, and controls the radio frequency unit to switch from a power saving mode to a normal working mode; receiving according to the receiving interface And the starting command to output a switch control command to the radio unit to control the radio frequency unit The switching device is connected to the corresponding device to perform a corresponding operation; and is further configured to configure a frequency of the local oscillator radio frequency signal used for mixing the first radio frequency signal in the radio frequency unit, so that the frequency of the second radio frequency signal is The receiving frequencies of the at least two receiving channels match. The delay correction device according to any one of the preceding claims, further comprising: a cascade interface, configured to receive a control command sent by the transceiver, and transparently transmit the control command to the The next-stage cascaded device to which the delay correction device is connected.

10. The delay correction device according to any one of the preceding claims, wherein each of the first transceiver port and the at least one pair of the transmission channels and the receiving channel of the transceiver are corresponding to: Each of the first transceiver ports serves as an interface between the at least one pair of the transmit channels and the receive channel and the delay correction device; each of the second transceiver ports and one of the first transceiver ports Corresponding to one antenna in the antenna group, the radio frequency unit couples the first radio frequency signal to the second transceiver port after receiving the first radio frequency signal by the first transceiver port. So that the first radio frequency signal is sent to the antenna through the second transceiver port.

A delay correction system, comprising: a transceiver and an antenna group, wherein the delay correction device according to any one of the above 1 to 10 is provided between the transceiver and the antenna.

12. The system according to 11, the transceiver is configured to: send a transmission time of the first radio frequency signal to the delay correction device according to any one of the transmission channels, and receive at least two reception channels respectively Determining a time delay between the at least two receiving channels by the receiving time of the second radio frequency signal sent by the calibration device; correcting the at least two receiving channels according to a delay between the at least two receiving channels .

13. The system according to 11 or 12, wherein one or any combination of the following devices is connected between the feeder connected to the transceiver and the delay correction device: an amplifier on the tower, and an external base station Filter and combine splitter.

14. The system according to 13, wherein the delay correction device is independently set or integrated with at least one device connected between the feeder connected to the transceiver and the delay correction device.

An on-column amplifier comprising at least one filter bank and the delay correction device of any one of 1-10, wherein the delay correction device is coupled to the at least one filter bank.

16. The amplifier on a tower according to 15, wherein a first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter bank; the at least one filter bank is configured to Receiving, by the first transceiver interface, a first radio frequency signal sent by any one of the transceiver channels, and transmitting the first radio frequency signal to the radio frequency unit; and receiving the radio frequency unit for sending Transmitting the second radio frequency signal to the first transceiver interface, so that the second radio frequency signal is separately sent to the transceiver through the first transceiver interface At least two of the receiving channels.

The amplifier on the tower according to 15 or 16, further comprising: an electrical adjustment and control interface, configured to receive a wake-up command or a start command sent by the transceiver, and transparently transmit the wake-up command or the start command A receiving interface in the delay correction device is provided.

18. The amplifier according to 17, wherein the electrical and control interface is further configured to: receive a control command sent by the transceiver, and transparently transmit the control command to a cascade of the delay correction device interface.

A combiner comprising: at least one filter and the delay correction device of any of 1-10, wherein the delay correction device is coupled to the at least one filter.

The first transceiver interface of the delay correction device is disposed between the transceiver and the at least one filter; the at least one filter is specifically configured to: Receiving, by the first transceiver interface, a first radio frequency signal sent by any one of the transceiver channels, and transmitting the first radio frequency signal to the radio frequency unit; and receiving the radio frequency unit for transmitting Transmitting the second radio frequency signal to the first transceiver interface, so that the second radio frequency signal is respectively sent to at least two of the transceivers through the first transceiver interface Road receiving channel.

A delay correction method, comprising: a delay correction device transmitting, to an antenna group, a first radio frequency signal sent by any one of the received transceivers; and the delay correction device returning to the antenna group The first radio frequency signal is mixed to obtain a second radio frequency signal; the delay correction device separately transmits the second radio frequency signal to at least two receiving channels in the transceiver.

According to the method, after the delay correction device sends the second radio frequency signal to at least two receiving channels in the transceiver, the method further includes: the transceiver according to the a transmission time of the first radio frequency signal transmitted by the one-way transmission channel to the delay correction device, and a reception time of the second radio frequency signal sent by the delay correction device respectively received by the at least two reception channels Determining a delay between the at least two receiving channels; the transceiver correcting the at least two receiving channels according to a delay between the at least two receiving channels.

The method of claim 21 or 22, before the delay correction device sends the first radio frequency signal sent by any one of the received transceivers to the antenna group, the method further includes: receiving, by the delay correction device The wake-up command output by the transceiver switches from the power saving mode to the normal working mode The delay correction device receives a start command output by the transceiver, and starts receiving a first radio frequency signal sent by any one of the transceiver channels.

The method of any one of 21 to 23, before the delay correction device mixes the first radio frequency signal returned by the antenna group, the method further includes: the delay correction device pair being used for the The radio frequency signal of the first-radio frequency signal is mixed to configure a frequency of the local radio frequency signal to match the frequency of the second radio frequency signal with the receiving frequency of the at least two receiving channels.

25. A delay correction device, comprising: a first transceiver interface for communicating with a transceiver; a second transceiver interface for communicating with an antenna group; and a radio frequency unit configured to receive the first transceiver interface At least two third radio frequency signals transmitted by the at least two transmit channels of the transceiver are respectively coupled to the second transceiver interface, so that the at least two third radio frequency signals respectively pass through the second transceiver interface And transmitting, to the antenna group, at least two third radio frequency signals returned by the antenna group received by the second transceiver interface, respectively, and respectively coupling the obtained at least two fourth radio frequency signals to the The first transceiver interface is configured to send the at least two fourth radio frequency signals to any one of the transceivers through the first transceiver interface.

26. The delay correction apparatus according to 25, disposed between the feeder connected to the transceiver and the antenna group.

27. The delay correction device of 25 or 26, wherein the first transceiver interface comprises at least two first transceiver ports, each of the first transceiver port and the transceiver being at least one of the transceivers a transmitting channel corresponding to the receiving channel; the second transceiver interface includes at least two second transceiver ports, each of the second transceiver ports and one of the first transceiver port and the antenna group The root antenna corresponds.

28. The delay correction apparatus according to any one of 25 to 27, wherein the radio frequency unit comprises: a local frequency oscillator, a mixing device, and at least two couplers; and the local frequency oscillator is configured to generate a local oscillator Transmitting a radio frequency signal, and transmitting the local oscillator radio frequency signal to the mixing device; the mixing device, configured to: return the at least two third radio frequencies returned by the antenna group received by the second transceiver interface The signal and the local oscillator radio frequency signal are separately mixed to obtain the at least two fourth radio frequency signals, and the at least two fourth radio frequency signals are respectively sent to any one of the at least two couplers; Either at least two couplers corresponding to at least one of the transmit and receive channels and one of the set of antennas for transmitting the corresponding transmit channel a third radio frequency signal coupled to the second transceiver interface to pass the third radio frequency signal through the The second transceiver interface is sent to the corresponding antenna, and is configured to couple the third radio frequency signal returned by the corresponding antenna received by the second transceiver interface to the mixing device; and is further used to obtain the The fourth radio frequency signal is coupled to the first transceiving interface, so that the fourth radio frequency signal is sent to the corresponding receiving channel through the first transceiving interface.

29. The delay correction device according to 28, wherein a second power splitter is disposed between any two of the couplers, and the first power splitter and each of the couplers are respectively provided with a first a switching device, each of the first switching devices corresponding to a matching load; the second power divider being coupled to the mixing device; and one of the two couplers passing through the first switching device When coupled to the second power splitter, another coupler is coupled to the corresponding matching load by the first switching device to cause a third RF signal returned by the antenna corresponding to one of the two couplers The second frequency divider reaches the mixing device, and the third RF signal returned by the antenna corresponding to the other coupler is absorbed by the matching load.

30. According to the delay correction device, a second switching device is disposed between the second power splitter and the mixing device, and the second switching device corresponds to a mismatch load; The device is connected to the second power splitter by the second switching device, and the second power splitter transmits the third radio frequency signal to the mixing device; the mixing device passes the The second switching device is connected to the mismatch load, and the mismatch load is used to cause the fourth radio frequency signal obtained by mixing the mixing device to enter the coupler.

The delay correction device of any of 25-30, further comprising: a receiving interface and a digital processing unit; the receiving interface, configured to receive power output by the transceiver, and receive the transceiver a wake-up command or a start command sent by the machine; the digital processing unit, configured to receive, by the receiving interface, a power output by the transceiver; and switch from a power-saving mode to a wake-up command received by the receiving interface a normal operation mode, controlling the radio frequency unit to receive power output by the transceiver through the digital processing unit, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; according to the receiving received by the receiving interface And initiating a command, respectively starting the first transceiver interface, the second transceiver interface, and the radio unit.

32. The delay correction device according to 31, wherein the digital processing unit comprises: a power conversion module, a power control module, and a processing module; and the power conversion module is configured to receive, by the receiving interface, the transceiver The power supply voltage outputted by the machine is converted to match the converted power supply voltage with the delay correction device; the power control module is configured to be under the control of the processing module Outputting, by the power conversion module, the power supply voltage outputted by the power conversion module to the radio frequency unit; the processing module, configured to: according to the wake-up command received by the receiving interface, from a power saving mode Switching to the normal working mode, controlling the power control module to output the power voltage output by the transceiver converted by the power conversion module to the radio frequency unit, and controlling the radio frequency unit to switch from the power saving mode to a normal operation mode; outputting, according to the start command received by the receiving interface, a switch control command to the radio frequency unit to control each switch device in the radio frequency unit to be connected to a corresponding device to perform a corresponding operation; The frequency of the local oscillator radio frequency signal used for mixing the third radio frequency signal in the radio frequency unit is configured to match the frequency of the fourth radio frequency signal with the receiving frequency of the at least two receiving channels.

The delay correction device according to any one of 24-32, further comprising: a cascade interface, configured to receive a control command sent by the transceiver, and transparently transmit the control command to the The next-stage cascaded device to which the delay correction device is connected.

The time delay correction device according to any one of the items 27-33, wherein each of the first transceiver port and the at least one pair of the transmission channels and the receiving channel of the transceiver are corresponding to: Each of the first transceiver ports serves as an interface between the at least one pair of the transmit channels and the receive channel and the delay correction device; each of the second transceiver ports and one of the first transceiver ports Corresponding to one antenna in the antenna group, the radio frequency unit couples the first radio frequency signal to the second transceiver port after the first transceiver port receives the third radio frequency signal. So that the third radio frequency signal is sent to the antenna through the second transceiver port.

35. A delay correction system, comprising: a transceiver and an antenna group, wherein the transceiver connection and the antenna are provided with a delay correction device as described in any one of 25-34.

36. The system according to 35, the transceiver is configured to: send, according to at least two transmit channels, a transmission time of a third radio frequency signal to the delay correction device, respectively, and receive, by each of the receive channels, respectively a receiving time of the fourth radio frequency signal obtained by mixing each of the third radio frequency signals sent by the delay correction device, determining a delay between the at least two transmitting channels; according to the at least two transmitting channels The delay is corrected for the at least two transmit channels.

37. The system according to 35 or 36, wherein one or any combination of the following devices is connected between the feeder connected to the transceiver and the delay correction device: an amplifier on the tower, and an external base station Filter and combine splitter.

38. The system according to 37, wherein the delay correction device is independently set, or At least one device integration setting between the feeder connected feeder and the delay correction device.

An overhead amplifier comprising at least one filter bank and a delay correction device according to any one of 25-34, wherein the delay correction device is coupled to the at least one filter bank.

40. The amplifier on a tower according to 39, wherein a first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter bank; the at least one filter bank is specifically used Receiving, by the first transceiver interface, at least two third radio frequency signals sent by at least two transmit channels in the transceiver, and transparently transmitting the third radio frequency signals to the radio frequency unit; Receiving at least two fourth radio frequency signals sent by the radio frequency unit, and transparently transmitting the at least two fourth radio frequency signals to the first transceiver interface, respectively, so that the at least two fourth radio frequency signals respectively pass The first transceiver interface sends to any one of the transceiver channels.

41. The amplifier on a tower of 39 or 40, further comprising: an electrical and control interface for receiving a wake-up command or a start command sent by the transceiver, and transparently transmitting the wake-up command or the start command A receiving interface in the delay correction device is provided.

42. The amplifier according to 41, wherein the ESC and control interface is further configured to: receive a control command sent by the transceiver, and transparently transmit the control command to a cascade of the delay correction device interface.

A combiner, comprising: at least one filter and the delay correction device of any one of 25-34, wherein the delay correction device is coupled to the at least one filter.

44. The combiner according to 43, the first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter; the at least one filter is specifically configured to: Receiving, by the first transceiver interface, at least two third radio frequency signals sent by at least two transmit channels in the transceiver, and transparently transmitting the third radio frequency signals to the radio frequency unit respectively; Transmitting at least two fourth radio frequency signals sent by the radio frequency unit, and transparently transmitting the at least two fourth radio frequency signals to the first transceiver interface, respectively, so that the at least two fourth radio frequency signals respectively pass the The first transceiver interface sends to any of the transceiver channels of the transceiver.

45. A delay correction method, comprising: a delay correction device transmitting, to an antenna group, a third radio frequency signal respectively sent by at least two transmit channels in a received transceiver; the delay correction device pairing the antenna group Returning at least two third RF signals for mixing, respectively obtaining at least two fourth RF signals; the delay correction device respectively transmitting the at least two fourth RF signals to the transceiver One wife receives the passage. According to the method, after the delay correction device separately sends the at least two fourth radio frequency signals to any one of the transceiver channels, the method further includes: the sending and receiving time, and Receiving, by each of the receiving channels, a receiving time of the fourth radio frequency signal obtained by mixing the third radio frequency signal sent by the delay correction device, and determining a delay between the at least two transmitting channels; The transceiver corrects the at least two transmit channels according to a delay between the at least two transmit channels.

47. The method according to 45 or 46, before the delay correction device sends the third radio frequency signal respectively sent by the at least two transmit channels in the received transceiver to the antenna group, the method further includes: the delay correction Receiving, by the device, a wake-up command output by the transceiver, from a power-saving mode to a normal working mode; the delay correction device receiving an activation command output by the transceiver, and starting to receive at least two channels in the transceiver At least two third RF signals transmitted by the transmitting channel.

48. The method according to any one of 45-47, before the delay correction device mixes the at least two third radio frequency signals returned by the antenna group, the method further includes: using the delay correction device The frequency of the localized radio frequency signal mixed with the third radio frequency signal is configured to match the frequency of the fourth radio frequency signal with the receiving frequency of the any of the receiving channels.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

A delay correction device, comprising:

a first transceiver interface for communicating with the transceiver;

a second transceiver interface, configured to communicate with an antenna group;

The delay correction apparatus according to claim 1, further comprising: a feeder connected to said transceiver and said antenna group.

The delay correction device according to claim 1 or 2, wherein the first transceiver interface comprises at least two first transceiver ports, each of the first transceiver ports and the transceiver At least one pair of the transmitting channels and the receiving channel corresponding to each other;

The second transceiver interface includes at least two second transceiver ports, each of the second transceiver ports corresponding to one of the first transceiver port and the antenna group.

The delay correction device according to any one of claims 1 to 3, wherein the radio frequency unit comprises: a local frequency oscillator, a mixing device, a first power splitter, and at least two couplers;

The local frequency oscillator is configured to generate a local oscillator radio frequency signal, and send the local oscillator radio frequency signal to the mixing device;

The mixing device is configured to mix the first radio frequency signal returned by the antenna group received by the second transceiver interface and the local oscillator radio frequency signal generated by the local frequency oscillator to obtain a Describe the second radio frequency signal;

The first power splitter is configured to allocate the second radio frequency signal obtained by the mixing device to at least two signals according to power, and the at least two signals obtained by the at least two channels are respectively received by the at least two channels. Corresponding to the channel;

Either one of the at least two couplers corresponds to at least one of the transmit and receive channels and one of the set of antennas for use in transmitting the corresponding one of the antennas The first radio frequency signal sent by the channel is coupled to the second transceiver interface, so that the first radio frequency signal is sent to the corresponding antenna through the second transceiver interface, and is used to receive the second transceiver interface. And a first radio frequency signal returned by the corresponding antenna is coupled to the mixing device; and configured to respectively couple at least two signals obtained by power distribution of the first power splitter from the second radio frequency signal to the The first transceiver interface is configured to send the at least two signals to the corresponding at least two receiving channels through the first transceiver interface.

The delay correction device according to claim 4, wherein a second power splitter is disposed between any two of the couplers, and the second power splitter and each of the couplers Providing a first switching device respectively, each of the first switching devices corresponding to a matching load; the second power distributor being connected to the mixing device;

When any one of the two couplers is connected to the second power splitter by the first switching device, another coupler is connected to the corresponding matching load through the first switching device, so that a first radio frequency signal returned by an antenna corresponding to one of the two couplers reaches the mixing device through the second power splitter, and a first radio frequency signal returned by the antenna corresponding to the other coupler is Match load absorption.

The delay correction device according to claim 5, wherein a second switching device is disposed between the second power distributor and the mixing device, and the second switching device and the mismatch load Corresponding;

The mixing device is connected to the second power splitter by the second switching device, and the second power splitter transmits the first radio frequency signal to the mixing device; the mixing device When the second switching device is turned on with the mismatch load, the mismatch load is used to cause the second radio frequency signal obtained by mixing the mixing device to enter the first power splitter.

The time delay correction device according to any one of claims 1 to 6, further comprising: a receiving interface and a digital processing unit;

The receiving interface is configured to receive power output by the transceiver, and receive a wake-up command or a start command sent by the transceiver;

The digital processing unit is configured to receive the power output of the transceiver through the receiving interface; switch from a power saving mode to a normal working mode according to the wakeup command received by the receiving interface, and control the radio frequency unit Receiving, by the digital processing unit, power output by the transceiver, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; Receiving the startup command received by the interface, respectively starting the first transceiver interface, the second transceiver interface, and the radio unit.

The time delay correction device according to claim 7, wherein the digital processing unit comprises: a power conversion module, a power control module, and a processing module;

The power conversion module is configured to convert a power supply voltage output by the transceiver received through the receiving interface, so that the converted power supply voltage is matched with the delay correction device;

The power control module is configured to output, by the processing module, a power supply voltage output by the transceiver converted by the power conversion module to the radio frequency unit; And switching, according to the wake-up command received by the receiving interface, from a power-saving mode to a normal working mode, and controlling the power control module to output a power voltage output by the transceiver converted by the power conversion module to The radio frequency unit controls the radio frequency unit to switch from the power saving mode to the normal working mode; and outputs a switch control command to the radio frequency unit according to the start command received by the receiving interface to control the radio frequency unit Each of the switching devices is connected to the corresponding device to perform a corresponding operation; and is further configured to configure a frequency of the local oscillator radio frequency signal used for mixing the first radio frequency signal in the radio frequency unit, so that the second radio frequency signal is The frequency matches the reception frequency of the at least two receive channels.

The delay correction device according to any one of claims 1-8, further comprising:

And a cascade interface, configured to receive a control command sent by the transceiver, and transparently transmit the control command to a next-level cascade device connected to the delay correction device.

The delay correction device according to any one of claims 3-9, wherein at least one pair of the transmitting channels and the receiving of each of the first transceiver port and the transceiver The channel corresponds to: each of the first transceiver ports serves as an interface between the at least one pair of the transmitting channels and the receiving channel and the delay correction device;

Each of the second transceiver ports is respectively corresponding to one of the first transceiver port and the antenna group, and the following is: after the first transceiver port receives the first RF signal, the The radio frequency unit couples the first radio frequency signal to the second transceiver port to transmit the first radio frequency signal to the antenna through the second transceiver port.

1 1. A delay correction system, comprising: a transceiver and an antenna group, A delay correction apparatus according to any one of claims 1 to 10 is provided between the transceiver and the antenna.

The system according to claim 11, wherein the transceiver is configured to: send a transmission time of the first radio frequency signal to the delay correction device according to any one of the transmission channels, and at least two receiving channels Receiving a receiving time of the second radio frequency signal sent by the delay correction device, determining a delay between the at least two receiving channels; and determining the at least according to a delay between the at least two receiving channels Two receiving channels are used for correction.

13. The system according to claim 11 or 12, characterized in that one or any combination of the following devices is connected between the feeder connected to the transceiver and the delay correction device: Upper amplifier, base station external filter and splitter.

14. The system according to claim 13, wherein the delay correction device is independently provided, or integrated with at least one device connected between a feeder connected to the transceiver and the delay correction device Settings.

An overhead amplifier, comprising: at least one filter bank and the delay correction device according to any one of claims 1 to 10, the delay correction device and the at least one filter bank connection.

The amplifier on the tower according to claim 15, wherein the first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter bank;

The at least one filter group is configured to: receive, by using the first transceiver interface, a first radio frequency signal sent by any one of the transceiver channels, and transparently transmit the first radio frequency signal to the radio frequency unit And receiving the second radio frequency signal sent by the radio frequency unit, and transparently transmitting the second radio frequency signal to the first transceiver interface, so that the second radio frequency signal is separately sent by using the first transceiver interface Giving at least two receive channels in the transceiver.

The amplifier on the tower according to claim 15 or 16, further comprising: an electrical adjustment and control interface, configured to receive a wake-up command or a start command sent by the transceiver, and to The startup command is transparently transmitted to a receiving interface in the delay correction device.

The pylon amplifier according to claim 17, wherein the ESC control interface is further configured to: receive a control command sent by the transceiver, and use the control command Transparently transmitted to the cascade interface of the delay correction device.

A combiner, comprising: at least one filter and the delay correction device according to any one of claims 1 to 10, wherein the delay correction device is connected to the at least one filter .

The combiner according to claim 19, wherein a first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter; the at least one The filter is specifically configured to: receive, by the first transceiver interface, a first radio frequency signal sent by any one of the transceiver channels, and transparently transmit the first radio frequency signal to the radio frequency unit; and receive The second radio frequency signal sent by the radio frequency unit is transparently transmitted to the first transceiver interface, so that the second radio frequency signal is separately sent to the transceiver through the first transceiver interface. At least two receiving channels in the letter machine.

21. A delay correction method, comprising:

The method according to claim 21, wherein after the delay correction device sends the second radio frequency signal to the at least two receiving channels of the transceiver, the method further includes:

Transmitting, by the transceiver, the sending time of the first radio frequency signal to the delay correction device according to the any one of the transmission channels, and sending the delay correction device received by the at least two receiving channels respectively Determining, by the receiving time of the second radio frequency signal, a delay between the at least two receiving channels;

The transceiver corrects the at least two receiving channels according to a delay between the at least two receiving channels.

The method according to claim 21 or 22, wherein before the delay correction device sends the first radio frequency signal sent by any one of the received transceivers to the antenna group, the method further includes: The delay correction device receives a wake-up command output by the transceiver, and switches from a power saving mode to a normal working mode;

The delay correction device receives a start command output by the transceiver, and starts receiving a first radio frequency signal sent by any one of the transceiver channels.

The method according to any one of claims 21 to 23, wherein before the delay correction device performs mixing on the first radio frequency signal returned by the antenna group, the method further includes:

The delay correction device configures a frequency of the local oscillator radio frequency signal used for mixing the first radio frequency signal to match a frequency of the second radio frequency signal with a receiving frequency of the at least two receiving channels .

25. A delay correction device, comprising:

a first transceiver interface for communicating with the transceiver;

a radio frequency unit, configured to couple at least two third radio frequency signals sent by at least two of the transceivers received by the first transceiver interface to the second transceiver interface, respectively, so that the at least The two third radio frequency signals are respectively sent to the antenna group through the second transceiver interface, and are used for mixing at least two third radio frequency signals returned by the antenna group received by the second transceiver interface. And respectively, the obtained at least two fourth radio frequency signals are respectively coupled to the first transceiver interface, so that the at least two fourth radio frequency signals are respectively sent to any one of the transceivers through the first transceiver interface Receive channel.

The delay correction device according to claim 25, further disposed between the feeder connected to the transceiver and the antenna group.

The delay correction device according to claim 25 or 26, wherein the first transceiver interface comprises at least two first transceiver ports, each of the first transceiver ports and the transceiver At least one pair of the transmitting channels and the receiving channel corresponding to each other;

The delay correction device according to any one of claims 25 to 27, wherein the radio frequency unit comprises: a local frequency oscillator, a mixing device, and at least two couplers;

The local frequency oscillator is configured to generate a local oscillator radio frequency signal, and send the local oscillator radio frequency signal to the mixing device; The mixing device is configured to mix the at least two third radio frequency signals and the local oscillator radio frequency signals returned by the antenna group received by the second transceiver interface to obtain the at least two paths a fourth radio frequency signal, and respectively transmitting the at least two fourth radio frequency signals to any one of the at least two couplers;

Any one of the at least two couplers corresponding to at least one of the transmit channel and the receive channel of the transceiver and one of the antenna groups, for transmitting the corresponding transmit channel The third radio frequency signal is coupled to the second transceiver interface, so that the third radio frequency signal is sent to the corresponding antenna through the second transceiver interface, and is used to return the corresponding antenna received by the second transceiver interface. And a third RF signal coupled to the mixing device; and configured to couple the fourth RF signal obtained by the mixing device to the first transceiver interface to pass the fourth RF signal through the The first transceiver interface is sent to the corresponding receiving channel.

The delay correction device according to claim 28, wherein a second power splitter is disposed between any two of the couplers, and the second power splitter and each of the couplers are Providing a first switching device respectively, each of the first switching devices corresponding to a matching load; the second power distributor being connected to the mixing device;

When any one of the two couplers is connected to the second power splitter by the first switching device, another coupler is connected to the corresponding matching load through the first switching device, so that a third radio frequency signal returned by an antenna corresponding to one of the two couplers reaches the mixing device through the second power splitter, and a third radio frequency signal returned by the antenna corresponding to the other coupler is Match load absorption.

The delay correction device according to claim 29, wherein a second switching device is disposed between the second power divider and the mixing device, and the second switching device and the mismatch load Corresponding;

The mixing device is connected to the second power splitter by the second switching device, and the second power splitter transmits the third radio frequency signal to the mixing device; the mixing device When the second switching device is turned on with the mismatch load, the mismatch load is used to cause the fourth radio frequency signal obtained by mixing the mixing device to enter the coupler.

The delay correction device according to any one of claims 25-30, further comprising: a receiving interface and a digital processing unit;

The receiving interface is configured to receive power output by the transceiver, and receive the receiving a wake-up command or a start command sent by the transmitter;

The digital processing unit is configured to receive the power output of the transceiver through the receiving interface; switch from a power saving mode to a normal working mode according to the wakeup command received by the receiving interface, and control the radio frequency unit Receiving, by the digital processing unit, the power output by the transceiver, and controlling the radio frequency unit to switch from a power saving mode to a normal working mode; respectively, starting the first according to the startup command received by the receiving interface a transceiver interface, a second transceiver interface, and the radio unit.

The time delay correction device according to claim 31, wherein the digital processing unit comprises: a power conversion module, a power control module, and a processing module;

The power control module is configured to output, by the processing module, a power supply voltage output by the transceiver converted by the power conversion module to the radio frequency unit; And switching, according to the wake-up command received by the receiving interface, from a power-saving mode to a normal working mode, and controlling the power control module to output a power voltage output by the transceiver converted by the power conversion module to The radio frequency unit controls the radio frequency unit to switch from the power saving mode to the normal working mode; and outputs a switch control command to the radio frequency unit according to the start command received by the receiving interface to control the radio frequency unit Each of the switching devices is connected to the corresponding device to perform a corresponding operation; and is further configured to configure a frequency of the local oscillator radio frequency signal used for mixing the third radio frequency signal in the radio frequency unit, so that the fourth radio frequency signal is configured The frequency matches the receiving frequency of the at least two receiving channels.

The delay correction device according to any one of claims 25 to 32, further comprising:

The delay correction device according to any one of claims 27 to 33, wherein at least one of the first transceiver port and the transceiver is in the transmission channel and the receiving The channel corresponds to: each of the first transceiver ports serves as an interface between the at least one pair of the transmitting channels and the receiving channel and the delay correction device; Corresponding to each of the first transceiver port and one of the antenna groups, the second transceiver port is specifically configured to: after the first transceiver port receives the third RF signal, The radio frequency unit couples the first radio frequency signal to the second transceiving port to transmit the third radio frequency signal to the antenna through the second transceiving port.

35. A delay correction system, comprising: a transceiver and an antenna group, wherein the transceiver connection and the antenna are provided with a delay correction according to any one of claims 25-34 device.

The system according to claim 35, wherein the transceiver is configured to: send a transmission time of the third radio frequency signal to the delay correction device according to at least two transmission channels, and receive any one of the channels The channel receives the receiving time of the fourth radio frequency signal obtained by mixing the third radio frequency signal sent by the delay correction device, and determines a delay between the at least two transmitting channels; The delay between the two transmit channels corrects the at least two transmit channels.

37. The system according to claim 35 or 36, wherein one or any combination of the following devices is further connected between the feeder connected to the transceiver and the delay correction device: Upper amplifier, base station external filter and splitter.

38. The system according to claim 37, wherein the delay correction device is independently provided or integrated with at least one device connected between a feeder connected to the transceiver and the delay correction device Settings.

39. An amplifier on a tower, comprising: at least one filter bank and the delay correction device according to any one of claims 25-34, the delay correction device and the at least one filter bank connection.

40. The pylon amplifier according to claim 39, wherein a first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter bank;

The at least one filter group is specifically configured to: receive, by using the first transceiver interface, at least two third radio frequency signals sent by at least two transmit channels in the transceiver, and transparently transmit the third radio frequency signals respectively. And transmitting to the radio frequency unit; and receiving at least two fourth radio frequency signals sent by the radio frequency unit, and transparently transmitting the at least two fourth radio frequency signals to the first transceiver interface, respectively, to enable the At least two fourth radio frequency signals are respectively sent through the first transceiver interface Send to any of the transceiver channels in the transceiver.

41. The pylon amplifier of claim 39 or 40, further comprising: an electrical and control interface for receiving a wake-up command or a start command sent by the transceiver, and The startup command is transparently transmitted to a receiving interface in the delay correction device.

The pylon amplifier according to claim 41, wherein the ESC control interface is further configured to: receive a control command sent by the transceiver, and transparently transmit the control command to the time A cascade interface for the delay correction device.

A combiner, comprising: at least one filter and the delay correction device according to any one of claims 25-34, wherein the delay correction device is connected to the at least one filter .

44. The combiner according to claim 43, wherein a first transceiver interface in the delay correction device is disposed between the transceiver and the at least one filter; the at least one The filter is specifically configured to: receive, by using the first transceiver interface, at least two third radio frequency signals sent by at least two transmit channels in the transceiver, and transparently transmit the third radio frequency signals to the radio frequency The unit is configured to receive at least two fourth radio frequency signals sent by the radio frequency unit, and transparently transmit the at least two fourth radio frequency signals to the first transceiver interface, so that the at least two channels are fourth. The radio frequency signals are respectively sent to any one of the transceiver channels through the first transceiver interface.

45. A delay correction method, comprising:

The delay correction device sends the third radio frequency signal respectively sent by the at least two transmit channels in the received transceiver to the antenna group; and mixes to obtain at least two fourth radio frequency signals respectively;

The delay correction device respectively transmits the at least two fourth radio frequency signals to any one of the transceiver channels.

The method according to claim 45, wherein the delay correction device separately sends the at least two fourth radio frequency signals to the receiving channel of the transceiver respectively, and further includes:

Transmitting the transceiver to the delay correction device according to at least two transmit channels The sending time of the third radio frequency signal, and the receiving time of the fourth radio frequency signal obtained by mixing each of the third radio frequency signals sent by the delay correction device respectively, and determining the at least two paths The delay between the transmitting channels;

The transceiver corrects the at least two transmit channels according to a delay between the at least two transmit channels.

The method according to claim 45 or 46, wherein the delay correction device further includes, before sending the third radio frequency signal respectively sent by the at least two transmit channels of the received transceiver to the antenna group, :

The delay correction device receives a wake-up command output by the transceiver, and switches from a power saving mode to a normal working mode;

The delay correction device receives an activation command output by the transceiver, and starts to receive at least two third radio frequency signals transmitted by at least two transmission channels in the transceiver.

The method according to any one of claims 45 to 47, wherein before the delay correction device performs mixing on the at least two third radio frequency signals returned by the antenna group, the method further includes:

The delay correction device configures a local oscillator RF signal frequency for mixing the third radio frequency signal to match a frequency of the fourth radio frequency signal with a reception frequency of the any of the receive channels.