WO2018219219A1 - Tdd/fdd configurable device, method, radio frequency module and communication device - Google Patents

Abstract

A TDD/FDD configurable device, a method, a radio frequency module and a communication device. The configurable device comprises at least one double-channel switching module; the double-channel switching module comprises a first switching module and a second switching module; the first switching module comprises a first transmitting port, a first receiving port, a first switching circuit, a first filter and a first input/output port; the first switching circuit is connected with the first transmitting port and the first receiving port and is connected with the first input/output port via the first filter; the second switching module comprises a second transmitting port, a second receiving port, a second switching circuit, a second filter, a duplexer and a second input/output port; the second switching circuit is connected with the second transmitting port and the second receiving port and is connected with the second input/output port via the second filter, and is connected with the first input/output port via the duplexer. The configurable device can achieve switching between different communication systems.

Description

TDD/FDD configurable device, method, radio frequency module and communication device Technical field

The present application relates to the field of communications technologies, and in particular, to a TDD/FDD configurable device, method, radio frequency module, and communication device.

Background technique

With the development of wireless networks and the continuous release of wireless spectrum in different regions, more and more operators have both Time Division Duplexing (TDD) and Frequency Division Duplexing (FDD) spectrum. . For example, some operators have the spectrum of FDD 1.8 GHz and TDD F bands, and some operators have the spectrum of FDD 1.8 GHz band and TDD 1.9 GHz band, or TDD and FDD spectrum with 2.6 GHz band.

At present, in the construction of FDD and TDD network sites, FDD and TDD each set up independent RF modules, and two planes need to be set for FDD and TDD. The FDD surface is used to install FDD that supports FDD frequency band RF signal transmission and reception. Antenna, TDD surface is used to install TDD antenna supporting RF signal transmission and reception in TDD band. For the FDD or TDD network sites that have been built, if you want to add another type of network support, for example, if you add TDD standard network support to the established FDD network site, you need to add the TDD RF module and TDD days separately. Face, or the FDD RF module and the TDD RF module are combined by a combiner to share the antenna one day.

However, in some scenarios, the setting of the new sky surface may be limited by space, which increases the difficulty of building the network site and increases the operation and maintenance costs of the network site. In addition, although the combination of the combiner can achieve the sharing of the surface, the use of the combiner will bring additional power loss and reduce the coverage distance of the site. At the same time, as a single module, the combiner will increase the total number of modules in the station. In order to reduce the loss, the size and weight of the combiner are large, and the intermodulation performance of the combiner is high and the design is difficult. Increase the difficulty of installation and construction of the site.

Summary of the invention

The embodiment of the present application provides a TDD/FDD configurable device, a method, a radio frequency module, and a communication device, which implements switching between a TDD system and an FDD system through software configuration, and implements a common module of the TDD system and the FDD system. Surface design reduces the construction and operation and maintenance costs of network sites.

A first aspect of the present application provides a TDD/FDD configurable device, including: at least one dual channel switching module, where the dual channel switching module includes a first switching module and a second switching module; and the first switching module includes a first transmitting port. a first receiving port, a first switching circuit, a first filter, and a first input/output port. The first switching circuit is connected to the first transmitting port and the first receiving port, and is connected to the first input/output port through a first filter, and the first switching module is configured to implement the radio frequency of the TDD system according to the switching state of the first switching circuit. The transmission or reception of a signal. The second switching module includes a second transmitting port, a second receiving port, a second switching circuit, a second filter, a duplexer, and a second input/output port, and the second switching circuit and the second transmitting port and the second receiving port Connected and connected to the second input/output port through the second filter, and connected to the first input/output port through the duplexer; the second switching module is configured to implement the radio frequency of the TDD system according to the switching state of the second switching circuit Transmitting or receiving of the signal; or, transmitting and receiving the RF signal of the FDD system according to the switching state of the second switching circuit.

It can be seen that the above TDD/FDD configurable device sets at least one dual channel switching module, and sets the first switching circuit and the first filter in the first switching module of the dual channel switching module, and the second in the dual channel switching module The second switching circuit, the second filter and the duplexer are arranged in the switching module, so that the hardware configuration can be changed without changing the hardware structure, and the switching state of the first switching circuit and the second switching circuit can be changed by software configuration. The first switching module and the second switching module implement transmission or reception of the radio frequency signal of the TDD system, or implement transmission or reception of the radio frequency signal of the TDD system through the first switching module, and implement the radio frequency signal of the FDD system through the second switching module. The transmitting and receiving, and the FDD standard RF signal can share the first input/output port with the TDD standard RF signal, thereby realizing the common module and common antenna design of the FDD system and the TDD system, which is beneficial to reducing the construction and operation of the network site. Dimensional cost.

In an embodiment, the first switching circuit includes a first circulator and a first switching switch, the first port of the first circulator is connected to the first transmitting port, and the second port of the first circulator passes the first filter Connected to the first input/output port, the third port of the first circulator is connected to the first end of the first switch, and the second end of the first switch is used for grounding through the first load, the first switch The three ends are connected to the first receiving port. The first switch includes a first switch state and a second switch state, and can be switched between the first switch state and the second switch state by means of software configuration.

In this embodiment, the first switch is disposed at the third port of the first circulator, and the first receiving port and the first load are respectively connected to the two ends of the first switch, so that the first switch can be conveniently passed. The manner of the software configuration changes the switching state of the first switch to achieve the connection between the third port of the first circulator and the first receiving port, so as to implement the receiving of the radio frequency signal of the TDD system, or the first ring The third port of the device is grounded through the first load to facilitate the transmission of the radio frequency signal of the TDD system.

In an embodiment, the first switch is configured to establish a connection relationship between the third port of the first circulator and the first load in the first switching state, to implement the radio frequency of the TDD system by using the first switching module. The transmitting of the signal; or the first switching switch is configured to establish a connection relationship between the third port of the first circulator and the first receiving port in the second switching state, to implement the radio frequency of the TDD system by using the first switching module Signal reception.

In an embodiment, the second switching circuit includes a second circulator, a second switching switch, and a third switching switch, the first port of the second circulator is connected to the second transmitting port, and the second port of the second circulator Connected to the second input/output port through the second filter, the third port of the second circulator is connected to the first end of the second switch, and the second end of the second switch is used for grounding through the second load, The third end of the second switch is connected to the first end of the third switch, and the second end of the third switch is connected to the second receiving port. The second switching switch and the third switching switch respectively include a first switching state and a second switching state, and can be switched between the first switching state and the second switching state by means of software configuration.

In this embodiment, the second switch and the third switch that are connected to each other are disposed at the third port of the second circulator, and the second load is connected to the second switch, and the second receive port is connected to the second switch The three switch switches are connected, so that the switching state of the second switch and the third switch can be changed by software configuration, thereby establishing a connection relationship between the third port and the second receiving port of the second circulator. In order to realize the reception of the radio frequency signal of the TDD system, or the third port of the second circulator is grounded through the second load, in order to realize the transmission of the radio frequency signal of the TDD system.

In an embodiment, the second switch is configured to establish a connection relationship between the third port of the second circulator and the second load in the first switching state, to implement the radio frequency of the TDD system by using the second switching module. Transmitting a signal; or, the second switching switch is in the second switching state, and the third switching switch is used to establish a connection relationship between the third port and the second receiving port of the second circulator in the first switching state In order to realize the reception of the radio frequency signal of the TDD system through the second switching module.

In an embodiment, the second port of the second circulator is further connected to the first port of the duplexer, the third end of the third switch is connected to the second port of the duplexer, and the third of the duplexer The port is connected to the first input/output port. The second port of the second circulator is respectively connected to one end of the second filter and the first port of the duplexer through the cavity branch. The third port of the duplexer and the first filter are coupled to the first input/output port by cavity combining.

In this embodiment, the second port of the second circulator is respectively connected to one end of the second filter and the first port of the duplexer through the cavity shunt, so that the radio frequency signals of the second transmitting port can pass respectively The second filter and the duplexer are configured to implement the transmission of the radio frequency signal of the TDD system or the transmission of the radio frequency signal of the FDD system according to the system of the radio frequency signal of the second transmitting port. At the same time, by connecting the second port of the duplexer with the third end of the third switch, the connection relationship between the second port and the second receiving port of the duplexer can be conveniently established by software configuration. In order to realize the reception of the RF signal of the FDD system through the duplexer. In addition, by connecting the third port of the duplexer and the first filter to the first input/output port in a cavity, the RF signal transceiving and the second switching of the TDD system of the first switching module can be implemented. The common module and common antenna design between the RF signal transmission and reception of the module's FDD system is beneficial to reducing the number of modules required by the network site and reducing the construction and operation and maintenance cost of the network site.

In an embodiment, the second switch is configured to establish a connection relationship between the third port of the second circulator and the second load in the first switching state, and the third switch is in the second switching state. And establishing a connection relationship between the second receiving port and the second port of the duplexer to implement transmission and reception of the radio frequency signal of the FDD system by using the second switching module.

In one embodiment, the second input/output port is configured to connect to the third load, and the RF signal of the FDD system of the second switching module shares the first input/output port with the RF signal of the TDD system of the first switching module.

In an embodiment, the TDD/FDD configurable device further includes a control module connected to the dual channel switching module for controlling a switching state of the first switching module or the second switching module of the dual channel switching module.

In this embodiment, by setting the control module in the TDD/FDD configurable device, the control module can be configured by software, and then the first switching module or the second switching module of the dual channel switching module is implemented by the control module. Control of the switching state. In this way, the communication system supported by the first switching module can be configured by controlling the switching state of the first switching module, and/or the communication system supported by the second switching module can be configured by controlling the switching state of the second switching module, Meet the communication needs of the network site.

A second aspect of the present application provides a radio frequency module, including: a radio frequency signal transceiver and a TDD/FDD configurable device, where the radio frequency signal transceiver includes 2n radio frequency signal transceiving channels, and each radio frequency signal transceiving channel can be configured. To support the TDD system or support the FDD system, the TDD/FDD configurable device includes n dual-channel switching modules, each of the dual-channel switching modules includes a first switching module and a second switching module; the first switching module includes a first transmitting port, a first receiving port, a first switching circuit, a first filter and a first input/output port, the first switching circuit is connected to the first transmitting port and the first receiving port, and passes through the first filter and the first input/output The port is connected, the first transmitting port and the first receiving port are connected with one of the radio frequency signal transceivers configured to support the TDD standard radio frequency signal transceiving channel, and the first input/output port is configured to connect the first antenna, the first switching module The transmitting or receiving of the radio frequency signal of the TDD system is implemented according to the switching state of the first switching circuit; the second switching module includes the second sending a port, a second receiving port, a second switching circuit, a second filter, a duplexer, and a second input/output port, the second switching circuit is connected to the second transmitting port and the second receiving port, and passes through the second filter Connected to the second input/output port and connected to the first input/output port through the duplexer; the second transmit port and the second receive port and one of the radio frequency signal transceivers configured to support the radio frequency signal transmission and reception of the TDD system a channel connection, a second input/output port for connecting the second antenna, and a second switching module for transmitting or receiving the radio frequency signal of the TDD system according to the switching state of the second switching circuit; or, the second transmitting port and the second The receiving port is connected to a radio frequency signal transceiver channel of the radio frequency signal transceiver configured to support the FDD system, and the second switching module is configured to implement transmission and reception of the radio frequency signal of the FDD system according to the switching state of the second switching circuit.

The radio frequency module sets n two-channel switching modules in the TDD/FDD configurable device, and sets the first switching circuit and the first filter in the first switching module of the dual-channel switching module, and is in the second channel switching module. The second switching circuit, the second filter and the duplexer are arranged in the switching module, so that the switching state of the first switching circuit and the second switching circuit can be changed by software configuration without changing the hardware structure. Transmitting or receiving the radio frequency signal of the TDD system through the first switching module and the second switching module, or transmitting or receiving the radio frequency signal of the TDD system through the first switching module, and implementing the radio frequency of the FDD system through the second switching module The signal is transmitted and received, and the RF signal of the FDD system can share the first input/output port with the RF signal of the TDD system, thereby realizing the common module and the common surface design of the FDD system and the TDD system, which is beneficial to reducing the construction of the network site. And operation and maintenance costs.

In one embodiment, the TDD/FDD configurable device is a TDD/FDD configurable device as in the first aspect of the embodiments of the present application or any one of the embodiments.

In an embodiment, the radio frequency module includes a first working mode and a second working mode; in the first working mode, each radio frequency signal transceiving channel of the radio frequency signal transceiver is configured to support the TDD system, and each The RF signal transceiver channel is electrically connected to the corresponding antenna through the corresponding switching module, and the RF module can realize the transmission or reception of the TDN standard RF signal of 2n channels; in the second working mode, the odd number of the RF signal transceiver The RF signal transceiving channels are configured to support the TDD system, and are electrically connected to the corresponding odd-numbered antennas through corresponding switching modules, and the even-numbered RF signal transceiving channels are configured to support the FDD system and pass corresponding The switching module is electrically connected to the antenna of the previous odd-numbered bit, and the radio frequency module can realize the transmission or reception of the radio frequency signals of the N-channel TDD system, and realize the transmission and reception of the RF signals of the FDD standard of the n channels.

In an embodiment, the transmitting or receiving of the radio frequency signal corresponding to the TDD system of each dual channel switching module shares the antenna connected with the first switching module by transmitting and receiving the radio frequency signal of the FDD system, and the antenna of the odd bit is simultaneously supported. The radio frequency signals of the TDD frequency band and the FDD frequency band are transmitted and received, and the even-numbered antennas support the transmission and reception of the radio frequency signals of the TDD frequency band.

In this embodiment, the antenna of the odd-numbered bits is configured to simultaneously support the transmission and reception of the radio frequency signals in the TDD frequency band and the FDD frequency band, and the antennas of the even-numbered bits are configured to support the transmission and reception of the RF signals in the TDD frequency band, and each of the two-channel switching is performed. The transmitting or receiving of the radio frequency signal corresponding to the TDD system of the module shares the antenna corresponding to the first switching module with the transmitting and receiving of the radio frequency signal of the FDD system, so that the radio frequency signal of the n-channel TDD system can be transmitted or received through the radio frequency module. And realize the transmission and reception of the radio frequency signals of the FDD system of n channels, which can save half of the number of antennas, that is, only need to support the antennas for transmitting and receiving the radio frequency signals of the TDD frequency band and the FDD frequency band at the same time, which is beneficial to save Space in the sky and reduce the construction and operation and maintenance costs of the site.

In an embodiment, in the second mode of operation, the first filter is further configured to suppress an out-of-band blocking effect of the RF signal of the FDD system corresponding to the dual channel switching module on the reception of the radio frequency signal of the TDD system.

In an embodiment, in the second working mode, the first filter is further configured to suppress intermodulation between the RF signal of the FDD system corresponding to the dual channel switching module and the RF signal of the TDD system, and the RF signal of the TDD system. The effect of the receiving; the duplexer is also used to suppress the influence of the intermodulation between the RF signal of the FDD system corresponding to the dual channel switching module and the RF signal of the TDD system on the reception of the RF signal of the FDD system.

In one embodiment, the first filter and the second filter are TDD filters, and the duplexer is an FDD duplexer.

A third aspect of the present application provides a communication device, including the radio frequency module provided by the second aspect of the embodiment of the present application and any one of the embodiments.

In the embodiment of the present application, by setting a TDD/FDD configurable device between the RF signal transceiver and the antenna module, the RF signal transceiver channel of the FDD system and the RF signal transceiver channel of the TDD system can be realized by software configuration. The common module and the common surface design enable the organic integration of TDD and FDD networks, which can effectively reduce the number of modules in the network site, save site space, and reduce site construction and operation and maintenance costs.

The fourth aspect of the embodiments of the present application provides a TDD/FDD configurable method, which is applied to the communications device provided by the third aspect of the embodiments of the present application, where the method includes:

Acquiring a communication system of the first RF signal transceiver channel connected to the first switching module of the dual channel switching module, and acquiring a communication system of the second RF signal transceiver channel connected to the second switching module of the dual channel switching module; wherein, the communication The system includes TDD and FDD;

If the communication system of the first RF signal transceiver channel is a TDD system, configuring a switching state of the first switching circuit in the first switching module to implement transmission or reception of a TDD standard radio frequency signal by using the first switching module;

If the communication system of the second RF signal transceiver channel is a TDD system, configuring a switching state of the second switching circuit in the second switching module to implement transmission or reception of the TDD standard radio frequency signal by using the second switching module;

If the communication system of the second RF signal transceiver channel is an FDD system, the switching state of the second switching circuit in the second switching module is configured to implement transmission and reception of the RF signal of the FDD system through the second switching module.

The TDD/FDD configuration method is configured to connect two RF signal transceiver channels through the first switching module and the second switching module of the dual channel switching module, and can be configured to be connected to the RF transceiver channel according to the communication standard of each RF signal transceiver channel. The switching state of the switching circuit in the switching module, thereby configuring the communication system supported by the corresponding switching module. In this way, each dual-channel switching module can be configured to support the transmission or reception of the two-channel TDD radio frequency signal according to the radio frequency signal transmission and reception channel system, or each dual-channel switching module can be configured to support one channel. The transmission or reception of the RF signal of the TDD system and the transmission and reception of the RF signal of the FDD system of one channel, thereby realizing the switching of the communication system without changing the hardware structure, and realizing the commonality of the FDD system and the TDD system. The module and common antenna design are beneficial to reduce the construction and operation and maintenance costs of the network site.

In an embodiment, the switching state of the first switching circuit in the first switching module is configured to implement the transmitting or receiving of the radio frequency signal in the TDD system by using the first switching module, including:

And configuring a first switching switch in the first switching circuit to establish a connection relationship between the third port of the first circulator and the first load in the first switching module, to implement the TDD system by using the first switching module Emission of radio frequency signals; or,

And configuring a first switch in the first switching circuit to establish a connection relationship between the third port of the first circulator and the first receiving port of the first switching module in the second switching state, to pass the A switching module implements reception of a radio frequency signal in a TDD system.

In this embodiment, by configuring the first switching switch to be in the first switching state or the second switching state, the radio frequency signal transmitting or receiving channel of the first switching module in the TDD system can be conveniently configured, thereby implementing the first switching module. Transmission or reception of TDD standard RF signals.

In an embodiment, the switching state of the second switching circuit in the second switching module is configured to implement the transmitting or receiving of the radio frequency signal in the TDD system by using the second switching module, including:

And configuring a second switching switch in the second switching circuit to establish a connection relationship between the third port of the second circulator and the second load in the second switching module, to implement the TDD standard by using the second switching module Transmitting the radio frequency signal; or, configuring the second switching switch in the second switching circuit to be in the second switching state, and configuring the third switching switch in the second switching circuit to be in the first switching state, establishing the second switching module A connection relationship between the third port of the second circulator and the second receiving port of the second switching module to implement reception of the radio frequency signal of the TDD system by the second switching module.

In this embodiment, the second switch is configured to be in the first switching state, or the second switch is configured in the second switching state, and the third switch is configured in the first switching state, thereby conveniently The radio frequency signal transmitting or receiving channel of the second switching module in the TDD system is configured to implement the TDD radio frequency signal transmission or reception through the second switching channel. At the same time, combined with the radio frequency signal transmission or reception channel of the first switching module in the TDD system, the transmission or reception of the radio frequency signals of the two channels of the TDD system can be realized.

In an implementation manner, configuring a switching state of the second switching circuit in the second switching module to implement transmission and reception of the radio frequency signal in the FDD system by using the second switching module, including:

And configuring a second switch in the second switching circuit to establish a connection relationship between the third port of the second circulator and the second load in the second switching module;

Configuring a third switch in the second switching circuit to establish a connection relationship between the second receiving port of the second switching module and the second port of the duplexer in the second switching module in the second switching state, to pass the second The switching module implements transmission and reception of radio frequency signals in the FDD system.

In this embodiment, the second switching switch is configured to be in the first switching state, and the third switching switch is configured in the second switching state, so that the radio frequency signal transmitting and receiving channels of the second switching module in the FDD system can be conveniently configured. Therefore, the transmission and reception of the RF signal of the FDD system are implemented by the second switching module. At the same time, combined with the radio frequency signal transmitting or receiving channel of the first switching module in the TDD system, the transmitting or receiving of the radio frequency signal in the channel TDD system and the transmitting and receiving of the radio frequency signal of the FDD system of one channel can be realized, thereby The realization of the common module and common antenna design of the FDD system and the TDD system is beneficial to reducing the construction and operation and maintenance cost of the network site.

In a fifth aspect, an embodiment of the present application provides a server, including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus, when the server is running. The processor executes the computer-executable instructions stored by the memory to cause the server to perform the method of the fourth aspect above.

In a sixth aspect, an embodiment of the present application provides a computer readable storage medium for storing computer software instructions for use in the above apparatus, and when executed on a computer, causes the computer to perform the method of the fourth aspect.

In a seventh aspect, an embodiment of the present application provides a computer program product comprising instructions, which when executed on a computer, enable the computer to perform the method of the above fourth aspect.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the prior art and the description of the embodiments of the present application will be briefly described below.

1 is a schematic structural diagram of a TDD/FDD configurable device according to an embodiment of the present application;

2 is a schematic structural diagram of a TDD/FDD configurable device according to an embodiment of the present application in a first working state;

3 is a schematic structural diagram of a TDD/FDD configurable device according to an embodiment of the present application in a second working state;

4 is a schematic structural diagram of a TDD/FDD configurable device according to an embodiment of the present application in a third working state;

FIG. 5 is a schematic structural diagram of a TDD/FDD configurable device according to an embodiment of the present application in a fourth working state; FIG.

6 is a schematic structural diagram of a radio frequency module according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a first structure of a communication device according to an embodiment of the present disclosure;

FIG. 8 is a second schematic structural diagram of a communication device according to an embodiment of the present disclosure;

FIG. 9 is a schematic flowchart of a TDD/FDD configurable method provided by an embodiment of the present application.

detailed description

Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to FIG. 1 , in an embodiment of the present application, a TDD/FDD configurable device 100 is provided, which can be applied to a base station, a Radio Remote Unit (RRU), etc., to implement by software configuration. The network site switches between the TDD system and the FDD system, and implements the common module and the common surface design of the TDD system and the FDD standard network site, thereby reducing the construction and operation and maintenance cost of the network site.

The TDD/FDD configurable device 100 includes: at least one dual channel switching module 10, and the dual channel switching module 10 includes a first switching module 11 and a second switching module 13.

The first switching module 11 includes a first transmitting port 111, a first receiving port 113, a first switching circuit 115, a first filter 117, and a first input/output port 119. As shown, the first switching circuit 115 is connected to the first transmitting port 111 and the first receiving port 113, and is connected to the first input/output port 119 through the first filter 117. The first switching module 11 is configured to implement transmission or reception of a radio frequency signal of the TDD system according to a switching state of the first switching circuit 115.

The second switching module 13 includes a second transmitting port 131, a second receiving port 133, a second switching circuit 135, a second filter 137, a duplexer 138, and a second input/output port 139, and a second switching circuit 135 and a The second transmitting port 131 is connected to the second receiving port 133, and is connected to the second input/output port 139 through the second filter 137, and to the first input/output port 119 through the duplexer 138.

The second switching module 13 is configured to implement transmission or reception of the radio frequency signal of the TDD system according to the switching state of the second switching circuit 135; or implement transmission and reception of the radio frequency signal of the FDD system according to the switching state of the second switching circuit 135.

The first filter 117 and the second filter 137 are TDD filters, and the duplexer 138 is an FDD duplexer. The first switching circuit 115 includes a first circulator 1151 and a first switching switch 1153. The first port a1 of the first circulator 1151 is connected to the first transmitting port 111, and the second port a2 of the first circulator 1151 passes the first filtering. The first port of the first circulator 1151 is connected to the first end b1 of the first switch 1153, and the second end b2 of the first switch 1153 is used to pass the first The load R1 is grounded, and the third end b3 of the first changeover switch 1153 is connected to the first receiving port 113.

The second switching circuit 135 includes a second circulator 1351, a second switching switch 1353, and a third switching switch 1355. The first port c1 of the second circulator 1351 is connected to the second transmitting port 131, and the second circulator 1351 is second. The port c2 is connected to the second input/output port 139 through the second filter 137, the third port c3 of the second circulator 1351 is connected to the first end d1 of the second changeover switch 1353, and the second end of the second changeover switch 1353 D2 is used for grounding through the second load R2, the third end d3 of the second changeover switch 1353 is connected to the first end e1 of the third changeover switch 1355, and the second end e2 of the third changeover switch 1355 is connected to the second receive port 133. . The second port c2 of the second circulator 1351 is also connected to the first port p1 of the duplexer 138, and the third end e3 of the third changeover switch 1355 is connected to the second port p2 of the duplexer 138, the duplexer 138 The third port p3 is connected to the first input/output port 119.

In this embodiment, the first switching switch 1153, the second switching switch 1353, and the third switching switch 1355 can each change the switching state by means of software configuration, and each of the switching switches includes a first switching state and a second switching state. Each of the switch switches respectively implements different connection relationships in the first switching state and the second switching state. It can be understood that the TDD/FDD configurable device 100 can further include one or more control modules for controlling the switching states of the first changeover switch 1153, the second changeover switch 1353, and the third changeover switch 1355 in a software configured manner. For example, the switching states of the first switching switch 1153, the second switching switch 1353, and the third switching switch 1355 may be configured by one control module, or may be the first switching switch 1153, the second switching switch 1353, and the third switching switch 1355, respectively. Set a corresponding control module, or set a corresponding control module for each switching module to configure the switching state of the switching switch in the switching module.

The first switch 1153 is in the first switching state, and the second switch 1353 is in the first switching state, and the TDD/FDD configurable device 100 can implement the 2-channel TDD radio frequency signal transmission, as shown in FIG. 2 . As shown, the first changeover switch 1153 is in the second switching state, the second changeover switch 1353 is in the second switching state, and the third changeover switch 1355 is in the first switching state, and the 2nd channel can be implemented by the TDD/FDD configurable device 100. The receiving of the radio frequency signal of the TDD system is as shown in FIG. 3; the first switching switch 1153 is in the first switching state, the second switching switch 1353 is in the first switching state, and the third switching switch 1355 is in the second switching state, The TDD/FDD configurable device 100 can realize the transmission of the radio signal of the 1-channel TDD system and the transmission/reception of the RF signal of the 1-channel FDD system, as shown in FIG. 4; the first switching switch 1153 is in the second switching state. The second switch 1353 is in the first switching state, and the third switch 1355 is in the second switching state, and the TDD/FDD configurable device 100 can realize the reception of the radio signal of the 1-channel TDD system and the FDD of the 1 channel. system The receiving/transmitting of the RF signal is shown in Figure 5.

Specifically, referring to FIG. 2, in an embodiment, the first switch 1153 is in a first switching state, and the first end b1 and the second end b2 of the first switch 1153 are turned on for establishing the first The connection relationship between the third port a3 of the circulator 1151 and the first load R1. In the first switching state, the first switching switch 1153 can implement the transmission of the radio frequency signal of the TDD system through the first switching module 11.

Referring to FIG. 3, in the second switching state, the first switch b1 of the first switch 1153 is electrically connected to the third end b3 for establishing the third port a3 of the first circulator 1151. A connection relationship between the receiving ports 113. In the second switching state, the first switching switch 1153 can implement the receiving of the radio frequency signal of the TDD system through the first switching module 11.

In this embodiment, the first transmitting port 111 is configured to connect to the first signal transmitting port TX1 of the radio frequency signal transceiver, and the first receiving port 113 is configured to connect the first signal receiving port RX1 of the radio frequency signal transceiver, the first The input/output port 119 is for connecting the first antenna through a feeder. The first signal transmitting port TX1 and the first signal receiving port RX1 of the radio frequency signal transceiver are respectively used for transmitting and receiving the radio frequency signals of the TDD system. The first switching switch 1153 is configured to be in a first switching state or a second switching state by means of software configuration, and the transmitting or receiving of the radio frequency signal of the TDD system can be implemented by the first switching module 11.

Referring to FIG. 2 again, in an embodiment, the second switch 1353 is in a first switching state, and the first end d1 and the second end d2 of the second switch 1353 are turned on for establishing the second circulator. The connection relationship between the third port c3 of 1351 and the second load R2. In the first switching state, the second switching switch 1353 can implement the transmission of the radio frequency signal of the TDD system through the second switching module 13.

Referring to FIG. 3 again, in the second switching state, the first switch d1 and the third end d3 of the second switch 1353 are turned on, so that the first end d1 of the second switch 1353 is The first end e1 of the three-switching switch 1355 is turned on, and the third switch 1355 is configured to be in the first switching state, that is, the first end e1 and the second end e2 of the third switch 1355 are turned on, thereby establishing The connection relationship between the third port c3 of the second circulator 1351 and the second receiving port 133. Therefore, when the second switching switch 1353 is in the second switching state, and the third switching switch 1355 is in the first switching state, the receiving of the radio frequency signal of the TDD system can be implemented by the second switching module 13.

In this embodiment, the second transmitting port 131 is configured to connect to the second signal transmitting port TX2 of the radio frequency signal transceiver, and the second receiving port 133 is configured to connect the second signal receiving port RX2 of the radio frequency signal transceiver, and second The input/output port 139 is for connecting the second antenna through the feeder. The second signal transmitting port TX2 and the second signal receiving port RX2 of the radio frequency signal transceiver are respectively used for transmitting and receiving the radio frequency signals of the TDD system. The second switching switch 1353 is configured to be in a first switching state by means of a software configuration, and the second switching module 13 can be used to implement the transmission of the radio frequency signal of the TDD system; or the second switching switch 1353 can be configured to be in the second switching state. The third switching switch 1355 is configured to be in a first switching state, and the receiving of the radio frequency signal in the TDD system can be implemented by the second switching module 13. In this way, in combination with the first switching module 11 and the second switching module 13, the transmission or reception of the radio frequency signal of the 2-channel TDD system can be realized, that is, the design of the 2D (2-channel transmission) 2R (2-channel reception) TDD system is realized. .

Referring to FIG. 4 and FIG. 5 together, in an embodiment, the second switch 1353 is in a first switching state, and the first end d1 and the second end d2 of the second switch 1353 are turned on for establishing The connection relationship between the third port c3 of the second circulator 1351 and the second load R2. Further, by configuring the third switch 1355 to be in the second switching state, that is, the second end e2 and the third end e3 of the third switch 1355 are turned on, the second receiving port 133 and the duplexer 138 can be established. The connection relationship between the second port p2. Therefore, when the second switching switch 1353 is in the first switching state, and the third switching switch 1355 is in the second switching state, the transmitting and receiving of the RF signal of the FDD system can be implemented by the second switching module 13. At the same time, by configuring the first switching switch 1153 in the first switching module 11 to be in the first switching state or the second switching state, the first switching module 11 can also implement transmission or reception of the radio frequency signal of the TDD system.

In this embodiment, the second transmitting port 131 is configured to connect to the second signal transmitting port TX2 of the radio frequency signal transceiver, and the second receiving port 133 is configured to connect the second signal receiving port RX2 of the radio frequency signal transceiver, the radio frequency signal. The second signal transmitting port TX2 and the second signal receiving port RX2 of the transceiver are respectively used for transmitting and receiving the radio frequency signals of the FDD system. The second input/output port 139 is configured to connect the third load, and the RF signal of the FDD system of the second switching module 13 and the radio frequency signal of the TDD system of the first switching module 11 are combined by the cavity, and the first input/output is shared. Port 119 is output. In this way, in combination with the first switching module 11 and the second switching module 13, the transmission or reception of the radio frequency signal of the 1 channel TDD system and the transmission and reception of the radio frequency signal of the 1 channel FDD system can be realized, that is, the TDD system of 1T1R is realized. And the common module design of the 1T1R FDD system. At the same time, since the transmission or reception of the radio frequency signal of the TDD system and the transmission and reception of the radio frequency signal of the 1 channel FDD system share the first input/output port 119, that is, the first antenna is shared, thereby reducing the number of antennas and saving the surface. space.

It can be understood that the TDD/FDD configurable device 100 provided by the embodiment of the present application is not limited to including only one dual-channel switching module 10, but may include any number of dual-channel switching modules 10, thereby forming a multi-channel, software-configurable The TDD/FDD configurable device 100 further configures the switching state of the switching switches in the plurality of dual channel switching modules 10 by software configuration, thereby implementing a multi-channel TDD system and a multi-channel TDD+FDD system. Switch. For example, it is assumed that the TDD/FDD configurable device 100 includes n dual-channel switching modules 10, so that 2n radio frequency signal transceiving channels can be provided, and 2n radio frequency signal transceiving channels can be configured into a TDD system by software configuration, or The n RF signal transmission and reception channels are configured as a TDD system, and the other n RF signal first transmission channels are configured as an FDD system, as shown in Table 1.

Table 1 RF transceiver channel configuration table of multi-channel TDD/FDD configurable device

Number of RF transceiver channels	TDD system	TDD+FDD system
2T2R	2T2R	1T1R
4T4R	4T4R	2T2R
6T6R	6T6R	3T3R
8T8R	8T8R	4T4R
......	......	......
2nT2nR	2nT2nR	nTnR

It can be understood that after the RF signal transmission and reception channels of 2n TDD standards are configured as the radio frequency signal transceiving channels of n TDD standards and the radio frequency signal transceiving channels of n FDD systems, the radio frequency signal transceiving channel of the TDD system and the radio frequency of the FDD system are understood. The input/output ports are shared between the signal transceiving channels, thereby saving half of the number of antennas, which is beneficial to reducing the limitation of the installation space to the sky surface, and reducing the difficulty of construction of the network site and the operation and maintenance cost.

Referring to FIG. 6, in an embodiment of the present application, a radio frequency module 600 is provided, including: a radio frequency signal transceiver 610 and a TDD/FDD configurable device 630. The radio frequency signal transceiver 610 includes 2n radio frequency signal transceiving channels, and each radio frequency signal transceiving channel includes a signal transmitting port TX and a signal receiving port RX. As shown in FIG. 6, TX1, RX1, TX2, RX2, ..., TX2n, RX2n, wherein each of the RF signal transceiving channels can be configured to support the TDD system or support the FDD system. The TDD/FDD configurable device 630 may include n dual-channel switching modules 10 as shown in FIG. 1 , and each of the dual-channel switching modules 10 includes a first switching module 11 and a second switching module 13 . The related description in the embodiment shown in FIG. 5 will not be repeated here.

In this embodiment, the TDD/FDD configurable device 630 is configured to establish a connection relationship between the radio frequency signal transceiver 610 and the antenna module 650, and is configured according to each radio frequency signal transceiving channel of the radio frequency signal transceiver 610. The communication system (TDD system or FDD system) configures the switching state of the corresponding two-channel switching module 10 by means of software configuration to implement switching between the TDD system and the TDD+FDD system.

As shown in FIG. 6, in this embodiment, each pair of signal transmitting port TX and signal receiving port RX of the radio frequency signal transceiver 610 is electrically connected to a corresponding antenna on the antenna module 650 through a corresponding switching module. For example, the signal transmitting port TX1 and the signal receiving port RX1 can be configured to support the radio frequency signal transceiving of the TDD system, and can be electrically connected to the first antenna through the first switching module 11 in the first dual channel switching module 10, and further The transmitting or receiving of the radio frequency signal of the TDD system is implemented according to the switching state of the first switching module 11. The signal transmitting port TX2 and the signal receiving port RX2 can be configured to support the radio frequency signal transceiving of the TDD system, and can be electrically connected to the second antenna through the second switching module 13 in the first dual channel switching module 10, and then according to the The switching state of the switching module 13 realizes the transmission or reception of the radio frequency signal of the TDD system; or, the signal transmitting port TX2 and the signal receiving port RX2 can also be configured to support the FDD radio frequency signal transceiving, and can be switched through the first dual channel. The second switching module 13 in the module 10 is electrically connected to the first antenna, so that the RF signal of the FDD can be realized by the second switching module 13 while transmitting or receiving the radio frequency signal of the TDD system through the first switching module 11. Transmission and reception. Correspondingly, the signal transmitting port TX2n and the signal receiving port TX2n can also be configured to support the radio frequency signal transceiving of the TDD system or the radio frequency signal receiving and supporting the FDD system, and can pass the second switching module in the nth dual channel switching module 10. 13 is electrically connected to the 2nd antenna, and further, according to the switching state of the second switching module 13 in the n-th dual-channel switching module 10, transmitting or receiving the radio frequency signal of the TDD system, or implementing the radio frequency signal transmission of the FDD system. receive.

According to the foregoing configuration manner, the radio frequency module 600 can be configured to be in a first working mode or a second working mode. In the first working mode, each radio frequency signal transceiving channel of the radio frequency signal transceiver 610 is configured to support the TDD system, and each radio frequency signal transceiving channel is electrically connected to the corresponding antenna through the corresponding switching module. In turn, according to the switching state of the 2n switching modules, the transmission or reception of the TDD standard radio frequency signals of 2n channels can be realized. In the second mode of operation, the odd-numbered radio frequency signal transceiving channels of the radio frequency signal transceiver 610 are configured to support the TDD system, and are electrically connected to the corresponding odd-numbered antennas through the corresponding switching module, and the even-numbered radio frequencies. The signal transceiving channels are all configured to support the FDD system, and are electrically connected to the antenna of the previous odd-numbered antenna through the corresponding switching module, thereby realizing the radio frequency signals of the N-channel TDD system according to the switching state of the 2n switching modules. Transmit or receive, and realize the transmission and reception of radio signals of the FDD system of n channels. It can be understood that the transmission or reception of the radio frequency signal of the TDD system corresponding to each of the two-channel switching modules 10 and the transmission and reception of the radio frequency signals of the FDD system share the antenna connected to the first switching module 11. In this embodiment, the antenna of the odd-numbered antenna supports the transmission and reception of the radio frequency signals of the TDD frequency band and the FDD frequency band, and the antenna of the even-numbered bits supports the transmission and reception of the radio frequency signals of the TDD frequency band.

In the second mode of operation, the first filter 117 is further configured to suppress an out-of-band blocking effect of the RF signal of the FDD system corresponding to the dual-channel switching module 10 on the reception of the radio frequency signal of the TDD system. The first filter 117 is further configured to suppress the influence of the intermodulation between the RF signal of the FDD system corresponding to the dual channel switching module 10 and the radio frequency signal of the TDD system on the reception of the radio frequency signal of the TDD system; the duplexer 138 is also used for The effect of the intermodulation between the RF signal of the FDD system corresponding to the dual channel switching module 10 and the RF signal of the TDD system on the reception of the RF signal of the FDD system is suppressed.

In this embodiment, by setting the TDD/FDD configurable device 630 between the radio frequency signal transceiver 610 and the antenna module 650, the radio frequency signal transceiving channel of the radio frequency module 600 can be conveniently configured by software, and thus Switching between the TDD system and the TDD+FDD hybrid system without changing the hardware structure and increasing the number of antennas, and saving half of the number of antennas in the TDD and FDD hybrid system, is conducive to saving the construction of communication sites. And operation and maintenance costs.

Referring to FIG. 7, in an embodiment of the present application, a communication device 700 is provided. The communication device 700 includes a radio frequency module 710 and an antenna module 730. The antenna module 730 may include a plurality of antennas 733 disposed on the sky surface 731. The RF module 710 can be electrically connected to the plurality of antennas 733 through the plurality of RF feeders 711. In this embodiment, the radio frequency module 710 may be the radio frequency module 600 provided in the embodiment shown in FIG. 6 . For details, refer to the related description in the embodiment shown in FIG. 6 , and details are not described herein again. In this embodiment, the communication device may be, but not limited to, a base station or a radio remote unit.

In an embodiment, it is assumed that the radio frequency module 710 can be configured to support radio frequency signal transmission and reception of the 8T8R TDD standard 1.9 GHz band, or can be configured to support the 4T4R FDD standard 1.8 GHz band + 4T4R TDD standard 1.9 GHz band Radio frequency signal transceiving, by setting the TDD/FDD configurable device 630 in the embodiment of FIG. 6 to include four dual-channel switching modules 10 as shown in FIG. 1, that is, including an 8-channel TDD filter and a 4-channel FDD. The filter can further realize the common module design of the RF signal transmission and reception channel of the 8T8R TDD standard 1.9GHz frequency band and the 4T4R FDD standard 1.8GHz frequency band +4T4R TDD standard 1.9GHz frequency band, and can be configured by software. The manner changes the manner in which the communication device 700 operates.

Referring to FIG. 7 , in an embodiment, when the network site where the communication device 700 is located is initially constructed, the radio frequency module 710 is configured to support radio frequency signal transmission and reception in the TTD format 1.9 GHz band of the 8T8R, and the RF module 710 is 8 The input/output terminals can be connected to the corresponding antennas on the sky surface 731 through the eight RF feed lines 711, and the TDD/FDD configurable device of the RF module 710 can be configured to support the RF signal transmission and reception of the TDD standard of the 8T8R through software configuration. Switching status. On this basis, if the network site where the communication device 700 is located needs to support the RF signal transmission and reception of the 4T4R FDD standard 1.8 GHz frequency band and the 4T4R TDD standard 1.9 GHz frequency band, the TDD of the RF module 710 can be directly configured by software configuration. The /FDD configurable device is configured to support the switching state of the radio frequency signal transmission and reception of the 4D4R FDD system and the radio frequency signal transmission and reception of the 4T4R TDD system, and reduce the four RF feed lines 711, as shown in FIG.

It can be understood that, since the radio frequency signal of the FDD system forms an out-of-band interference to the reception of the radio frequency signal of the TDD system, in the embodiment, the TDD filter in each dual-channel switching module 10 can suppress the RF signal of the FDD system. Out-of-band interference to ensure that interference does not affect the TDD reception performance of the RF module. At the same time, the influence of the intermodulation of the radio frequency signals of the TDD and FDD systems on the reception of the RF signals of the respective standards can be suppressed by the respective TDD filters and FDD duplexers. In addition, in the mixed mode of TDD and FDD, the RF signal of the TDD system and the RF signal of the FDD system can be duplexed to avoid intermodulation interference between the two bands.

In the embodiment of the present application, by setting a TDD/FDD configurable device between the RF signal transceiver and the antenna module, the RF signal transceiver channel of the FDD system and the RF signal transceiver channel of the TDD system can be realized by software configuration. The common module and the common surface design realize the organic integration of TDD and FDD two standard networks, which can effectively reduce the number of modules at the network site, save site space, and reduce site construction and operation and maintenance costs.

Referring to FIG. 9, in an embodiment of the present application, a TDD/FDD configurable method is provided, which can be applied to the communication device 700 provided in the embodiment shown in FIG. 7 and FIG.

Step 901: Acquire a communication system of the first RF signal transceiver channel connected to the first switching module of the dual channel switching module, and obtain a communication standard of the second RF signal transceiver channel connected to the second switching module of the dual channel switching module. Among them, the communication system includes the TDD system and the FDD system;

Step 902: If the communication system of the first RF signal transceiver channel is a TDD system, configure a switching state of the first switching circuit in the first switching module to implement transmission or reception of a TDD standard radio frequency signal by using the first switching module;

Step 903: If the communication system of the second RF signal transceiving channel is a TDD system, configuring a switching state of the second switching circuit in the second switching module to implement transmission or reception of the TDD standard radio frequency signal by using the second switching module;

Step 904: If the communication system of the second RF signal transceiver channel is an FDD system, configure a switching state of the second switching circuit in the second switching module to implement transmission and reception of the RF signal of the FDD system by using the second switching module.

The TDD/FDD configurable method is configured to connect two radio frequency signal transceiving channels through the first switching module and the second switching module of the dual channel switching module, and can be configured to transmit and receive according to the communication standard of each radio frequency signal transceiving channel. The switching state of the switching circuit in the switching module of the channel connection configures the communication system supported by the corresponding switching module. In this way, each dual-channel switching module can be configured to support the transmission or reception of the two-channel TDD radio frequency signal according to the radio frequency signal transmission and reception channel system, or each dual-channel switching module can be configured to support one channel. The transmission or reception of the RF signal of the TDD system supports the transmission and reception of the RF signal of the FDD system of one channel, thereby realizing the switching of the communication system without changing the hardware structure, and realizing the commonality between the FDD system and the TDD system. The module and common antenna design are beneficial to reduce the construction and operation and maintenance costs of the network site.

It can be seen that the method provided in the embodiment of the present application can implement the flexible configuration of the TDD/FDD, thereby implementing the common module and the common antenna design of the FDD system and the TDD system, which is beneficial to reducing the construction and operation and maintenance cost of the network site.

It can be understood that the specific implementation manners of the steps in the TDD/FDD configurable method provided by the embodiment of the present application, for example, the specific structure of the dual-channel switching module and the connection relationship between the RF signal receiving channel and the antenna, etc. Referring to the related description in the embodiment shown in FIG. 1 to FIG. 8 , details are not described herein again.

Claims (23)

1. A time division duplex TDD/frequency division duplex FDD configurable device, comprising: at least one dual channel switching module, wherein the dual channel switching module comprises a first switching module and a second switching module;

   The first switching module includes a first transmitting port, a first receiving port, a first switching circuit, a first filter, and a first input/output port, the first switching circuit and the first transmitting port and the a first receiving port is connected, and is connected to the first input/output port through the first filter, where the first switching module is configured to implement a radio frequency signal of a TDD system according to a switching state of the first switching circuit. Transmit or receive;

   The second switching module includes a second transmitting port, a second receiving port, a second switching circuit, a second filter, a duplexer, and a second input/output port, the second switching circuit and the second transmitting a port is connected to the second receiving port, and is connected to the second input/output port through the second filter, and is connected to the first input/output port through the duplexer;

   The second switching module is configured to implement transmission or reception of a radio frequency signal of a TDD system according to a switching state of the second switching circuit; or, according to a switching state of the second switching circuit, implement transmission of a radio frequency signal of an FDD system receive.
2. The TDD/FDD configurable device according to claim 1, wherein said first switching circuit comprises a first circulator and a first switching switch, said first port of said first circulator and said first a transmitting port is connected, the second port of the first circulator is connected to the first input/output port through the first filter, and the third port of the first circulator and the first switch The first end is connected to the second end of the first switch, and the third end of the first switch is connected to the first receiving port.
3. The TDD/FDD configurable device according to claim 2, wherein the first switch is configured to establish a third port of the first circulator and the first load in a first switching state a connection relationship between the first switching module to implement the transmission of the radio frequency signal of the TDD system; or the first switching switch is used to establish the third of the first circulator in the second switching state a connection relationship between the port and the first receiving port to implement reception of a radio frequency signal of the TDD system by the first switching module.
4. The TDD/FDD configurable device according to any one of claims 1 to 3, wherein the second switching circuit comprises a second circulator, a second switching switch, and a third switching switch, the second ring The first port of the device is connected to the second transmitting port, and the second port of the second circulator is connected to the second input/output port through the second filter, the second circulator The third port is connected to the first end of the second switch, the second end of the second switch is used for grounding through the second load, and the third end of the second switch is connected to the third switch The first end is connected, and the second end of the third switch is connected to the second receiving port.
5. The TDD/FDD configurable device according to claim 4, wherein the second switch is configured to establish a third port of the second circulator and the second load in a first switching state a connection relationship between the radio frequency signals of the TDD system by the second switching module; or the second switching switch is in the second switching state, and the third switching switch is in the first switching state And a connection relationship between the third port of the second circulator and the second receiving port, to implement receiving the radio frequency signal of the TDD system by using the second switching module.
6. The TDD/FDD configurable device according to claim 4, wherein the second port of the second circulator is further connected to the first port of the duplexer, and the third port of the third switch The terminal is connected to the second port of the duplexer, and the third port of the duplexer is connected to the first input/output port.
7. The TDD/FDD configurable device according to claim 6, wherein the second switch is configured to establish a third port of the second circulator and the second load in a first switching state a connection relationship between the third switch in the second switching state, configured to establish a connection relationship between the second receiving port and the second port of the duplexer, to pass the The second switching module implements transmission and reception of the RF signal of the FDD system.
8. The TDD/FDD configurable device according to claim 7, wherein the second input/output port is configured to connect to a third load, and the RF signal of the FDD system of the second switching module is the first The radio frequency signals of the TDD system of the switching module share the first input/output port.
9. The TDD/FDD configurable device according to any one of claims 1 to 8, wherein the device further comprises a control module, the control module being connected to the dual channel switching module for controlling the a switching state of the first switching module or the second switching module of the dual channel switching module.
10. A radio frequency module, comprising: a radio frequency signal transceiver and a TDD/FDD configurable device, wherein the radio frequency signal transceiver comprises 2n radio frequency signal transceiving channels, and each of the radio frequency signal transceiving channels can be configured To support the TDD system or support the FDD system, the TDD/FDD configurable device includes n dual-channel switching modules, and each of the dual-channel switching modules includes a first switching module and a second switching module;

    The first switching module includes a first transmitting port, a first receiving port, a first switching circuit, a first filter, and a first input/output port, the first switching circuit and the first transmitting port and the a first receiving port is connected and connected to the first input/output port through the first filter, and the first transmitting port and the first receiving port are configured with one of the radio frequency signal transceivers The first input/output port is configured to connect the first antenna, and the first switching module is configured to implement the radio frequency signal of the TDD system according to the switching state of the first switching circuit, in order to support the radio frequency signal transceiving channel connection of the TDD system. Transmitting or receiving;

    The second switching module includes a second transmitting port, a second receiving port, a second switching circuit, a second filter, a duplexer, and a second input/output port, the second switching circuit and the second transmitting a port connected to the second receiving port, connected to the second input/output port by the second filter, and connected to the first input/output port by the duplexer; The second transmitting port and the second receiving port are connected to a radio frequency signal transceiving channel of the radio frequency signal transceiver configured to support a TDD system, and the second input/output port is configured to connect the second antenna, The second switching module is configured to implement transmission or reception of the radio frequency signal of the TDD system according to the switching state of the second switching circuit; or the second transmitting port and the second receiving port and the radio frequency signal transceiver One of the RF signal transceiving channel connections configured to support the FDD system, and the second switching module is configured to implement the RF signal of the FDD system according to the switching state of the second switching circuit And receiving.
11. The radio frequency module according to claim 10, wherein the TDD/FDD configurable device is the TDD/FDD configurable device according to any one of claims 2 to 9.
12. The radio frequency module according to claim 11, wherein the radio frequency module comprises a first working mode and a second working mode;

    In the first working mode, the radio frequency module implements 2n channels of TDD radio frequency signal transmission or reception;

    In the second working mode, the radio frequency module implements transmission or reception of radio signals of n channels of the TDD system, and implements transmission and reception of radio signals of the FDD system of n channels.
13. The radio frequency module according to claim 12, wherein in the second working mode, the transmitting or receiving of the radio frequency signal corresponding to the TDD system of each of the two-channel switching modules and the transmitting of the radio frequency signal of the FDD system And receiving an antenna connected to the first switching module.
14. The radio frequency module according to claim 12, wherein in the second working mode, the first filter is further configured to suppress a radio frequency signal of the FDD system corresponding to the dual channel switching module to the TDD The out-of-band blocking effect is formed by the reception of the RF signal.
15. The radio frequency module according to claim 12, wherein in the second working mode, the first filter is further configured to suppress a radio frequency signal and a TDD system of the FDD system corresponding to the dual channel switching module. The effect of the intermodulation between the radio frequency signals on the reception of the radio frequency signal of the TDD system; the duplexer is further configured to suppress the radio frequency signal of the FDD system corresponding to the dual channel switching module and the radio frequency signal of the TDD system The effect of intermodulation on the reception of the RF signal of the FDD system.
16. The radio frequency module according to claim 11, wherein said first filter and said second filter are TDD filters, and said duplexer is an FDD duplexer.
17. A communication device, comprising the radio frequency module according to any one of claims 10 to 16.
18. A TDD/FDD configurable method for use in a communication device according to claim 17, wherein the method comprises:

    Acquiring a communication system of the first radio frequency signal transceiving channel connected to the first switching module of the dual channel switching module, and acquiring a communication system of the second radio frequency signal transceiving channel connected to the second switching module of the dual channel switching module; The communication system includes a TDD system and an FDD system;

    If the communication system of the first RF signal transceiving channel is a TDD system, configuring a switching state of the first switching circuit in the first switching module to implement transmission of a TDD standard radio frequency signal by using the first switching module or receive;

    If the communication system of the second RF signal transceiving channel is a TDD system, configuring a switching state of the second switching circuit in the second switching module to implement the TDD standard radio frequency signal transmission or the second switching module receive;

    If the communication system of the second RF signal transceiving channel is an FDD system, configuring a switching state of the second switching circuit in the second switching module to implement transmission of the RF signal of the FDD system by using the second switching module receive.
19. The method according to claim 18, wherein the switching state of the first switching circuit in the first switching module is configured to implement transmission or reception of a radio frequency signal of the TDD system by the first switching module, include:

    Establishing a first switch in the first switching circuit in a first switching state, establishing a connection relationship between a third port of the first circulator and the first load in the first switching module, to pass the a switching module implements transmission of a radio frequency signal in a TDD system; or

    Establishing a first switch in the first switching circuit in a second switching state, establishing a third port of the first circulator in the first switching module and a first receiving port of the first switching module And connecting a relationship to implement receiving of the radio frequency signal of the TDD system by using the first switching module.
20. The method according to claim 18 or 19, wherein the switching state of the second switching circuit in the second switching module is configured to implement the transmission of the radio frequency signal of the TDD system by the second switching module or Receive, including:

    And configuring a second switch in the second switching circuit to establish a connection relationship between the third port of the second circulator and the second load in the second switching module, in the first switching state, to pass the The second switching module implements the transmission of the radio frequency signal of the TDD system; or

    Configuring the second switching switch in the second switching circuit to be in the second switching state, and configuring the third switching switch in the second switching circuit to be in the first switching state, and establishing the second ring in the second switching module A connection relationship between a third port of the device and a second receiving port of the second switching module to implement reception of a radio frequency signal of the TDD system by the second switching module.
21. The method according to claim 18 or 19, wherein the switching state of the second switching circuit in the second switching module is configured to implement the transmission of the RF signal of the FDD system by the second switching module. Receive, including:

    And configuring a second switch in the second switching circuit to establish a connection relationship between the third port of the second circulator and the second load in the second switching module;

    Configuring a third switch in the second switching circuit to establish a connection between the second receiving port of the second switching module and the second port of the duplexer in the second switching module in the second switching state a relationship to implement transmission and reception of a radio frequency signal of the FDD system by the second switching module.
22. A computer storage medium characterized by storing a program for implementing the method according to any one of claims 18 to 21.
23. A computer program product, characterized in that the program product comprises a program for implementing the method according to any one of claims 18 to 21.

Images