CN111327344B - Radio frequency system and electronic equipment - Google Patents
Radio frequency system and electronic equipment Download PDFInfo
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- CN111327344B CN111327344B CN202010115934.5A CN202010115934A CN111327344B CN 111327344 B CN111327344 B CN 111327344B CN 202010115934 A CN202010115934 A CN 202010115934A CN 111327344 B CN111327344 B CN 111327344B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
Abstract
The application provides a radio frequency system and electronic equipment, which comprise a radio frequency transceiver, a radio frequency processing circuit, a change-over switch module, a first antenna and a second antenna; the radio frequency processing circuit comprises a first transmitting module, a diversity receiving module, a first triplexer, a directional coupler, a second transmitting module, a main set receiving module and a second triplexer; when the radio frequency system is in a non-independent networking working mode, the first antenna is used for transmitting of a first low-frequency band and diversity reception of a combination of the first low-frequency band and a second low-frequency band, and the second antenna is used for transmitting of the second low-frequency band and main collection reception of the combination of the first low-frequency band and the second low-frequency band. The dual-low-frequency-band non-independent networking system can adopt two triplexers and a combined radio frequency circuit design and carry out antenna combination design by using special devices, so that the dual-low-frequency-band non-independent networking can be completed by two antennas, and the universality of the dual-low-frequency-band non-independent networking on electronic equipment is greatly improved.
Description
Technical Field
The present application relates to the field of radio frequency technologies, and in particular, to a radio frequency system and an electronic device.
Background
With the widespread use of a large number of electronic devices such as smart phones, smart phones have more and more applications and more powerful functions, and smart phones are developed towards diversification and personalization directions and become indispensable electronic products in user life. Electronic devices in The fourth Generation (4G) mobile communication system generally adopt a single-antenna or dual-antenna rf system architecture. The radio frequency framework of the 4G scheme is simple and comprises a transmitting device, a receiving device, a switch and an antenna. The transmitting device may include a Low Band (LB) transmitting module and a Medium High Band (MHB) transmitting module, and the receiving device may include a Primary Receive (PRX) module and a Diversity Receive (DRX) module.
The double-low-frequency-band non-independent networking means that a 4G low-frequency band and a 5G low-frequency band work together, two power amplifiers are required to work simultaneously to transmit signals, and the 4G low-frequency band and the 5G low-frequency band both need two antennas respectively, so that 4 antennas are required. But the low band antenna is too large in size and a small electronic device cannot accommodate 4 antennas.
Disclosure of Invention
Based on the above problem, this application has provided a radio frequency system and electronic equipment, can adopt two triplexers and combination radio frequency circuit design to close the antenna design with special device, make two antennas just can accomplish the non-independent network deployment of dual low frequency channel, promoted the general usefulness of the non-independent network deployment of dual low frequency channel on electronic equipment greatly.
In a first aspect, an embodiment of the present application provides a radio frequency system, where the radio frequency system includes a radio frequency transceiver, a radio frequency processing circuit, a switch module, a first antenna, and a second antenna, and the radio frequency transceiver is connected to the radio frequency processing circuit;
the radio frequency processing circuit comprises a first transmitting module, a diversity receiving module, a first triplexer, a directional coupler, a second transmitting module, a main set receiving module and a second triplexer;
the first port of the radio frequency transceiver is connected with the first port of the first transmitting module, the second port of the first transmitting module is connected with the first port of the first triplexer, the second port of the first triplexer is connected with the change-over switch module through the directional coupler, the third port of the first triplexer is connected with the third port of the diversity receiving module, the first port of the diversity receiving module is connected with the third port of the radio frequency transceiver, the second port of the diversity receiving module is connected with the change-over switch module, the second port of the radio frequency transceiver is connected with the first port of the second transmitting module, the second port of the second transmitting module is connected with the third port of the second triplexer, the third port of the second transmitting module is connected with the second port of the second triplexer, and the fourth port of the second transmitting module is connected with the change-over switch module, a fifth port of the second transmitting module is connected with a third port of the master set receiving module, a first port of the second triplexer is connected with a second port of the master set receiving module, the first port of the master set receiving module is connected with a fourth port of the radio frequency transceiver, and the change-over switch module is connected with the first antenna and the second antenna;
when the radio frequency system is in a non-independent networking working mode, the first antenna is used for transmitting of a first low-frequency band and diversity reception of a combination of the first low-frequency band and a second low-frequency band, and the second antenna is used for transmitting of the second low-frequency band and main collection reception of the combination of the first low-frequency band and the second low-frequency band.
In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the radio frequency system described in any one of the first aspect of the embodiment of the present application, and when the radio frequency system is in a non-independent networking operating mode, the radio frequency system is configured to implement transmission and reception of the first low frequency band and transmission and reception of the second low frequency band.
It can be seen that, in the embodiment of the application, two triplexers and a combined radio frequency circuit can be adopted, and a special device is used for designing a combined antenna, so that the two antennas can complete dual-low-frequency-band non-independent networking, and the universality of the dual-low-frequency-band non-independent networking on electronic equipment is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a radio frequency system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a triplexer according to an embodiment of the present disclosure;
fig. 3a is a schematic structural diagram of a radio frequency system in which a switch module is a 3P3T switch according to an embodiment of the present disclosure;
fig. 3b is a schematic structural diagram of a radio frequency system in which a switch module is a SP2T and DPDT combination switch according to an embodiment of the present disclosure;
fig. 3c is a schematic structural diagram of a radio frequency system in which a switch module is a DP4T switch according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, system, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The electronic Device according to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., Mobile phones), Mobile Stations (MS), Terminal devices (Terminal devices), and so on. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency system according to an embodiment of the present disclosure, in which the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, a switch module 13, a first antenna 141 and a second antenna 142, the radio frequency transceiver 11 is connected to the radio frequency processing circuit 12;
specifically, the rf processing circuit includes a first transmitting module 121, a diversity receiving module 122, a first triplexer 123, a directional coupler 124, a second transmitting module 125, a main set receiving module 126, and a second triplexer 127;
the first port 111 of the rf transceiver is connected to the first port 1211 of the first transmitter module 121, the second port 1212 of the first transmitter module 121 is connected to the first port 1231 of the first triplexer 123, the second port 1232 of the first triplexer 123 is connected to the switcher module 13 through the directional coupler 124, the third port 1233 of the first triplexer 123 is connected to the third port 1223 of the diversity receiver module 122, the first port 1221 of the diversity receiver module 122 is connected to the third port 113 of the rf transceiver 11, the second port 1222 of the diversity receiver module 122 is connected to the switcher module 13, the second port 112 of the rf transceiver 11 is connected to the first port 1251 of the second transmitter module 125, the second port 1252 of the second transmitter module 125 is connected to the third port 1273 of the second triplexer 127, the third port 1253 of the second transmitter module 125 is connected to the second port 1272 of the second duplexer 127, the fourth port 1254 of the second transmitter module 125 is connected to the switch module 13, the fifth port 1255 of the second transmitter module 125 is connected to the third port 1263 of the main transceiver module 126, the first port 1271 of the second triplexer 127 is connected to the second port 1262 of the main transceiver module 126, the first port 1261 of the main transceiver module 126 is connected to the fourth port 114 of the rf transceiver 11, and the switch module 13 is connected to the first antenna 141 and the second antenna 142.
When the radio frequency system 100 is in a Non-independent Networking (NSA) operating mode, the first antenna 141 is used for transmitting in a first low frequency band and diversity receiving in a combination of the first low frequency band and a second low frequency band, and the second antenna 142 is used for transmitting in the second low frequency band and main diversity receiving in a combination of the first low frequency band and the second low frequency band.
In the embodiment of the application, the NSA working mode comprises any one of an EN-DC framework, an NE-DC framework and an NGEN-DC framework.
Under an EN-DC framework, the electronic equipment is connected with a 4G core network, a 4G base station is a main station, and a 5G base station is an auxiliary station;
under an NE-DC framework, a 5G core network is introduced, a 5G base station is a main station, and a 4G base station is an auxiliary station;
under the NGEN-DC framework, a 5G core network is introduced, a 4G base station is a main station, and a 5G base station is an auxiliary station.
Wherein DC represents Dual Connectivity, i.e., Dual Connectivity (DC); e represents Evolved-UMTS Terrestrial Radio Access (E-UTRA or EUTRA), namely a 4G Radio Access network; n stands for (New Radio, NR), i.e. 5G New Radio; NG stands for (Next Generation, NG) Next Generation core network, i.e. 5G core network.
EN-DC refers to dual connectivity of a 4G radio access network with a 5G NR, NE-DC refers to dual connectivity of a 5G NR with a 4G radio access network, and NGEN-DC refers to dual connectivity of a 4G radio access network with a 5G NR under a 5G core network.
For convenience of explanation, the following non-independent networking mode is described by taking an EN-DC architecture as an example.
Under an EN-DC framework, the radio frequency system of the embodiment of the present application supports dual Low frequency (LB) non-independent networking, that is, LB + LB NSA, where LB + LB NSA refers to LB Long Term Evolution (LTE) + LB NR working together, and two Power amplifiers (Power amplifiers, PA) are required to work simultaneously to Transmit signals, and LB LTE and NR both require two antennas, one antenna is used for transmission (Transmit, TX) or Primary Receive (PRX), and the other antenna is used for Diversity Receive (DRX). Therefore, to implement LB + LBNSA, 4 antennas are required. Because the size of the LB antenna is too large, for small-sized electronic devices (e.g., mobile phones), the headroom reserved for the LB antenna is small, and it is difficult to simultaneously meet the requirements of the headroom of 4 LB antennas, so that it is difficult to make an LB antenna with good efficiency for 4 antennas, and in order to ensure the reliability of uplink signals. Two antennas with better antenna efficiency in 4 antennas can be used for transmitting the LB LTE signal and the LB NR signal.
In the embodiment of the present application, the first low frequency band may include a B20 band (an uplink: 832 + 862MHz, a downlink: 791 + 821MHz), the second low frequency band may include a B28 band (an uplink: 703 + 748MHz, a downlink: 758 + 803MHz), the B28 band may include a B28A band (an uplink: 703 + 733MHz, a downlink: 758 + 788MHz), and the second low frequency band may further include an N28A band (an uplink: 703 + 733MHz, a downlink: 758 + 788 MHz). It should be noted that the frequency band ranges of the B28A of the 4G frequency band and the N28A of the 5G frequency band are the same, and those skilled in the art can recognize that the two frequency bands are the same frequency band with different names in different network systems.
Under an EN-DC framework, the first antenna 141 is used for transmitting in a B20 frequency band and diversity receiving in a combination of a B20 frequency band and an N28A frequency band, and the second antenna 142 is used for transmitting in an N28A frequency band and main set receiving in a combination of a B20 frequency band and an N28A frequency band.
In the embodiment of the present application, when the radio frequency system is in the NSA operation mode,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the first transmission module 121 → the first triplexer 123 → the directional coupler 124 → the switcher module 13 → the first antenna 141;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the first antenna 141 → the switcher module 13 → the directional coupler 124 → the first triplexer 123 → the diversity reception module 122 → the radio frequency transceiver 11;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the switcher module 13 → the second antenna 142;
a primary set reception (PRX) path of a combination of the first low frequency band and the second low frequency band includes: the second antenna 142 → the switch module 13 → the second transmitting module 125 → the second triplexer 127 → the main set receiving module 126 → the rf transceiver 11.
Optionally, when the radio frequency system 100 is only in the LTE operating mode, the first antenna 141 is used for transmitting the first low frequency band and the second low frequency band, and for receiving the main set of the first low frequency band and the main set of the second low frequency band, and the second antenna 142 is used for diversity reception of a combination of the first low frequency band and the second low frequency band.
When the radio frequency system is in the LTE only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the switch module 13 → the first antenna 141;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the switcher module 13 → the first antenna 141;
a primary set reception (PRX) path of the first low frequency band comprising: the first antenna 141 → the switch module 13 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
a primary set reception (PRX) path of the second low frequency band comprising: the first antenna 141 → the switch module 13 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the second antenna 142 → the switch module 13 → the diversity receiving module 122 → the rf transceiver 11.
As shown in fig. 2, fig. 2 is a schematic structural diagram of a triplexer provided in this embodiment, where the triplexer includes an antenna ANT port, a receiving RX port, a Ground group port, and two transmitting TX ports, that is, a first TX port in a first low-frequency band (B20) and a second TX port in a second low-frequency band (B28A). It is to be understood that the first triplexer 123 and the second triplexer 127 are essentially identical triplexers, the first triplexer 123 needs to use a first TX port, an antenna ANT port, and a receiving RX port of the illustrated triplexer, the second triplexer needs to use a second TX port, an antenna ANT port, and a receiving RX port of the illustrated triplexer, and for convenience of distinction, the ports used by the first triplexer 123 may be named as a first transmit port, a first receive port, and a first antenna port, and the ports used by the second triplexer 127 may be named as a second transmit port, a second receive port, and a second antenna port. Specifically, the first transmitting port may correspond to the first port 1231 of the first triplexer 123 in fig. 1, the first antenna port may correspond to the second port 1232 of the first triplexer 123 in fig. 1, and the first receiving port may correspond to the third port 1233 of the first triplexer 123 in fig. 1; the second transmit port may correspond to the third port 1273 of the second triplexer 127 of fig. 1, the second antenna port may correspond to the second port 1272 of the second triplexer 127 of fig. 1, and the second receive port may correspond to the first port 1271 of the second triplexer 127 of fig. 1.
The first transmitting port is configured to circulate a transmitting signal of the first low frequency band B20, the first receiving port is configured to circulate a receiving signal of a combination of the first low frequency band and the second low frequency band, the first antenna port is configured to simultaneously circulate a transmitting signal of the first low frequency band and the receiving signal, the second transmitting port is configured to circulate a transmitting signal of the second low frequency band, the second receiving port is configured to circulate a receiving signal of a combination of the first low frequency band and the second low frequency band, and the second antenna port is configured to simultaneously circulate a transmitting signal of the second low frequency band and the receiving signal.
Through the triplexer, the first low-frequency band and the second low-frequency band can be combined to work simultaneously.
The first transmitting module 121 in the embodiment of the application may include a Multi-mode Multi-band Power Amplifier (MMPA), and a PA, a switch, and the like may be integrated in the MMPA.
The second transmitting module 125 of the embodiment of the present application may include PAMID, which is a radio frequency integrated module that integrates PA, duplexer, filter, and transmitting switch.
The diversity receiving module 122 in the embodiment of the present application may include an L-DRX, where the L-DRX is a receiving module integrating a Surface Acoustic Wave (SAW) filter and an LNA, and its component devices may include a Phase7 lite device, which is used to implement filtering and amplification of an RX signal.
The main set receiving module 126 of the embodiment of the present application may include a Micro Low Noise Amplifier (MLNA), and a Low Noise Amplifier (Low Noise Amplifier, LNA) may be integrated inside the MLNA, so as to realize amplification of RX signals.
The directional coupler 124 in this embodiment may mix the two rf signals and output the mixed rf signal. Optionally, directional coupler 124 may also have a power distribution function, for dividing the power of the input signal into several paths to be fed back to the corresponding receiving port of rf transceiver 11, so that rf transceiver 11 can adjust the power of the rf signal transmitted by rf transceiver 11.
The switch module 13 of the embodiment of the present application can be any one of a three-pole three-throw 3P3T switch, a double-pole double-throw DPDT and single-pole double-throw SP2T combination switch, or a double-pole four-throw DP4T switch.
As shown in fig. 3a, fig. 3a is a schematic structural diagram of a radio frequency system with a switch module being a 3P3T switch according to an embodiment of the present disclosure, the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, a 3P3T switch 13, a first antenna 141 and a second antenna 142, the radio frequency transceiver 11 is connected to the radio frequency processing circuit 12;
specifically, the rf processing circuit includes a first transmitting module 121, a diversity receiving module 122, a first triplexer 123, a directional coupler 124, a second transmitting module 125, a main set receiving module 126, and a second triplexer 127;
the first port 111 of the rf transceiver is connected to the first port 1211 of the first transmitter module 121, the second port 1212 of the first transmitter module 121 is connected to the first port 1231 of the first triplexer 123, the second port 1232 of the first triplexer 123 is connected to the first T-port T1 of the 3P3T switch 13 through the directional coupler 124, the third port 1233 of the first triplexer 123 is connected to the third port 1223 of the diversity receiver module 122, the first port 1221 of the diversity receiver module 122 is connected to the third port 113 of the rf transceiver 11, the second port 1222 of the diversity receiver module 122 is connected to the third T-port T3 of the 3P3T switch 13, the second port 112 of the rf transceiver 11 is connected to the first port 1251 of the second transmitter module 125, and the second port 1252 of the second transmitter module 125 is connected to the third port 1273 of the third duplexer 127, the third port 1253 of the second transmitter module 125 is connected to the second port 1272 of the second triplexer 127, the fourth port 1254 of the second transmitter module 125 is connected to the second T-port T2 of the 3P3T switch 13, the fifth port 1255 of the second transmitter module 125 is connected to the third port 1263 of the master receiver module 126, the first port 1271 of the second triplexer 127 is connected to the second port 1262 of the master receiver module 126, the first port 1261 of the master receiver module 126 is connected to the fourth port 114 of the rf transceiver 11, the first P port P1 of the 3P3T switch 13 is connected to the first antenna 141, and the second P port P2 of the 3P3T switch 13 is connected to the second antenna 142.
When the radio frequency system is in the NSA only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the first transmission module 121 → the first triplexer 123 → the directional coupler 124 → the 3P3T switch 13 → the first antenna 141;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the first antenna 141 → 3P3T switch 13 → directional coupler 124 → first triplexer 123 → diversity reception module 122 → radio frequency transceiver 11;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the 3P3T switch 13 → the second antenna 142;
a primary set reception (PRX) path of a combination of the first low frequency band and the second low frequency band includes: the second antenna 142 → 3P3T switch 13 → the second transmitting module 125 → the second triplexer 127 → the main set receiving module 126 → the rf transceiver 11.
When the radio frequency system is in the LTE only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the 3P3T switch 13 → the first antenna 141;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the 3P3T switch 13 → the first antenna 141;
a primary set reception (PRX) path of the first low frequency band comprising: the first antenna 141 → 3P3T switch 13 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
a primary set reception (PRX) path of the second low frequency band comprising: the first antenna 141 → 3P3T switch 13 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the second antenna 142 → 3P3T switch 13 → the diversity receiving module 122 → the radio frequency transceiver 11.
Optionally, referring to fig. 3b, fig. 3b is a schematic structural diagram of a radio frequency system in which a switch module is a SP2T and DPDT combination switch according to an embodiment of the present disclosure, where the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, a SP2T switch 131, a DPDT switch 132, a first antenna 141, and a second antenna 142, and the radio frequency transceiver 11 is connected to the radio frequency processing circuit 12;
specifically, the rf processing circuit includes a first transmitting module 121, a diversity receiving module 122, a first triplexer 123, a directional coupler 124, a second transmitting module 125, a main set receiving module 126, and a second triplexer 127;
the first port 111 of the radio frequency transceiver is connected to the first port 1211 of the first transmission module 121, the second port 1212 of the first transmission module 121 is connected to the first port 1231 of the first triplexer 123, the second port 1232 of the first triplexer 123 is connected to the first T port T11 of the SP2T switch 131 through the directional coupler 124, the third port 1233 of the first triplexer 123 is connected to the third port 1223 of the diversity reception module 122, the first port 1221 of the diversity reception module 122 is connected to the third port 113 of the radio frequency transceiver 11, the second port 1222 of the diversity reception module 122 is connected to the second T port T12 of the SP2T switch 131, the P port P11 of the SP2T switch 131 is connected to the second T port T22 of the DPDT switch 132, and the second port 112 of the radio frequency transceiver 11 is connected to the first port 1251 of the second transmission module 125, the second port 1252 of the second transmitter module 125 is connected to the third port 1273 of the second triplexer 127, the third port 1253 of the second transmitter module 125 is connected to the second port 1272 of the second triplexer 127, the fourth port 1254 of the second transmitter module 125 is connected to the first T port T21 of the DPDT switch 132, the fifth port 1255 of the second transmitter module 125 is connected to the third port 1263 of the main set receiver module 126, the first port 1271 of the second triplexer 127 is connected to the second port 1262 of the main set receiver module 126, the first port 1261 of the main set receiver module 126 is connected to the fourth port 114 of the radio transceiver 11, the first P port P21 of the DPDT switch 132 is connected to the first antenna 141, and the second P port P22 of the DPDT switch 132 is connected to the second antenna 39142.
When the radio frequency system is in the NSA only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the first transmission module 121 → the first triplexer 123 → the directional coupler 124 → the SP2T (131) and DPDT (132) combined switch → the first antenna 141;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the first antenna 141 → SP2T (131) and DPDT (132) combined switch → the directional coupler 124 → the first triplexer 123 → the diversity reception module 122 → the radio frequency transceiver 11;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the SP2T (131) and DPDT (132) combined switch → the second antenna 142;
a primary set reception (PRX) path of a combination of the first low frequency band and the second low frequency band includes: the second antenna 142 → SP2T (131) and DPDT (132) combined switch → the second transmitting module 125 → the second triplexer 127 → the main set receiving module 126 → the radio frequency transceiver 11.
When the radio frequency system is in the LTE only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the SP2T (131) and DPDT (132) combined switch → the first antenna 141;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the SP2T (131) and DPDT (132) combined switch → the first antenna 141;
a primary set reception (PRX) path of the first low frequency band comprising: the first antenna 141 → SP2T (131) and DPDT (132) combined switch → the second transmitting module 125 → the main set receiving module 126 → the radio frequency transceiver 11;
a primary set reception (PRX) path of the second low frequency band comprising: the first antenna 141 → SP2T (131) and DPDT (132) combined switch → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the main set receiving module 126 → the radio frequency transceiver 11;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the second antenna 142 → SP2T (131) and DPDT (132) are combined for switching → the diversity receiving module 122 → the rf transceiver 11.
Optionally, as shown in fig. 3c, fig. 3c is a schematic structural diagram of a radio frequency system in which a switch module is a DP4T switch according to an embodiment of the present disclosure, where the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, a DP4T switch 13, a first antenna 141, and a second antenna 142, and the radio frequency transceiver 11 is connected to the radio frequency processing circuit 12;
specifically, the rf processing circuit includes a first transmitting module 121, a diversity receiving module 122, a first triplexer 123, a directional coupler 124, a second transmitting module 125, a main set receiving module 126, and a second triplexer 127;
the first port 111 of the rf transceiver is connected to the first port 1211 of the first transmitter module 121, the second port 1212 of the first transmitter module 121 is connected to the first port 1231 of the first triplexer 123, the second port 1232 of the first triplexer 123 is connected to the first T-port T1 of the DP4T switch 13 via the directional coupler 124, the third port 1233 of the first triplexer 123 is connected to the third port 1223 of the diversity receiver module 122, the first port 1221 of the diversity receiver module 122 is connected to the third port 113 of the rf transceiver 11, the second port 1222 of the diversity receiver module 122 is connected to the third T-port T3 of the DP4T switch 13, the second port 112 of the rf transceiver 11 is connected to the first port 1251 of the second transmitter module 125, and the second port 1252 of the second transmitter module 125 is connected to the third port 1273 of the second triplexer 127, the third port 1253 of the second transmitter module 125 is connected to the second port 1272 of the second triplexer 127, the fourth port 1254 of the second transmitter module 125 is connected to the second T-port T2 of the DP4T switch 13, the fifth port 1255 of the second transmitter module 125 is connected to the third port 1263 of the master receiver module 126, the first port 1271 of the second triplexer 127 is connected to the second port 1262 of the master receiver module 126, the first port 1261 of the master receiver module 126 is connected to the fourth port 114 of the rf transceiver 11, the first P-port P1 of the DP4T switch 13 is connected to the first antenna 141, and the second P-port P2 of the DP4T switch 13 is connected to the second antenna 142.
When the radio frequency system is in the NSA only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the first transmission module 121 → the first triplexer 123 → the directional coupler 124 → the DP4T switch 13 → the first antenna 141;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the first antenna 141 → the DP4T switch 13 → the directional coupler 124 → the first triplexer 123 → the diversity reception module 122 → the radio frequency transceiver 11;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the DP4T switch 13 → the second antenna 142;
a primary set reception (PRX) path of a combination of the first low frequency band and the second low frequency band includes: the second antenna 142 → the DP4T switch 13 → the second transmitting module 125 → the second triplexer 127 → the main set receiving module 126 → the rf transceiver 11.
When the radio frequency system is in the LTE only mode of operation,
a Transmit (TX) path of the first low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the DP4T switch 13 → the first antenna 141;
a Transmit (TX) path of the second low frequency band includes: the radio frequency transceiver 11 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the DP4T switch 13 → the first antenna 141;
a primary set reception (PRX) path of the first low frequency band comprising: the first antenna 141 → the DP4T switch 13 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
a primary set reception (PRX) path of the second low frequency band comprising: the first antenna 141 → the DP4T switch 13 → the second transmitting module 125 → the second triplexer 127 → the second transmitting module 125 → the main set receiving module 126 → the rf transceiver 11;
the Diversity Reception (DRX) path of the combination of the first low frequency band and the second low frequency band comprises: the second antenna 142 → the DP4T switch 13 → the diversity receiving module 122 → the rf transceiver 11.
The 3P3T switch may include 3 In ports and 3 OUT ports, and may realize 3-3 arbitrary connection switching by In-OUT; the SP2T switch can comprise 1 In port and 2 OUT ports, 1 port can be intelligently connected with In-OUT, the DPDT switch can comprise 2 In ports and 2 OUT ports, and 2-2 cross connection switching can be realized by In-OUT; the DP4T switch may include 4 In ports and 2 OUT ports, and 2-2 inter-line connection switching may be achieved with In-OUT.
Above-mentioned radio frequency system can adopt two triplexers and combination radio frequency circuit design to close the antenna design with special device, make two antennas just can accomplish the non-independent network deployment of two low-frequency ranges, promoted the general usefulness of the non-independent network deployment of two low-frequency ranges on electronic equipment greatly.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, as shown in fig. 4, the electronic device 10 may include a radio frequency system 100, where the radio frequency system 100 includes a radio frequency transceiver 11, a radio frequency processing circuit 12, a switch module 13, a first antenna 141 and a second antenna 142, the radio frequency transceiver 11 is connected to the radio frequency processing circuit 12;
specifically, the rf processing circuit includes a first transmitting module 121, a diversity receiving module 122, a first triplexer 123, a directional coupler 124, a second transmitting module 125, a main set receiving module 126, and a second triplexer 127;
the first port 111 of the rf transceiver is connected to the first port 1211 of the first transmitter module 121, the second port 1212 of the first transmitter module 121 is connected to the first port 1231 of the first triplexer 123, the second port 1232 of the first triplexer 123 is connected to the switcher module 13 through the directional coupler 124, the third port 1233 of the first triplexer 123 is connected to the third port 1223 of the diversity receiver module 122, the first port 1221 of the diversity receiver module 122 is connected to the third port 113 of the rf transceiver 11, the second port 1222 of the diversity receiver module 122 is connected to the switcher module 13, the second port 112 of the rf transceiver 11 is connected to the first port 1251 of the second transmitter module 125, the second port 1252 of the second transmitter module 125 is connected to the third port 1273 of the second triplexer 127, the third port 1253 of the second transmitter module 125 is connected to the second port 1272 of the second duplexer 127, the fourth port 1254 of the second transmitter module 125 is connected to the switch module 13, the fifth port 1255 of the second transmitter module 125 is connected to the third port 1263 of the main transceiver module 126, the first port 1271 of the second triplexer 127 is connected to the second port 1262 of the main transceiver module 126, the first port 1261 of the main transceiver module 126 is connected to the fourth port 114 of the rf transceiver 11, and the switch module 13 is connected to the first antenna 141 and the second antenna 142.
When the radio frequency system 100 is in a Non-independent Networking (NSA) operating mode, the first antenna 141 is used for transmitting in a first low frequency band and diversity receiving in a combination of the first low frequency band and a second low frequency band, and the second antenna 142 is used for transmitting in the second low frequency band and main diversity receiving in a combination of the first low frequency band and the second low frequency band.
The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.
Claims (10)
1. A radio frequency system is characterized by comprising a radio frequency transceiver, a radio frequency processing circuit, a change-over switch module, a first antenna and a second antenna, wherein the radio frequency transceiver is connected with the radio frequency processing circuit;
the radio frequency processing circuit comprises a first transmitting module, a diversity receiving module, a first triplexer, a directional coupler, a second transmitting module, a main set receiving module and a second triplexer;
the first port of the radio frequency transceiver is connected with the first port of the first transmitting module, the second port of the first transmitting module is connected with the first port of the first triplexer, the second port of the first triplexer is connected with the change-over switch module through the directional coupler, the third port of the first triplexer is connected with the third port of the diversity receiving module, the first port of the diversity receiving module is connected with the third port of the radio frequency transceiver, the second port of the diversity receiving module is connected with the change-over switch module, the second port of the radio frequency transceiver is connected with the first port of the second transmitting module, the second port of the second transmitting module is connected with the third port of the second triplexer, the third port of the second transmitting module is connected with the second port of the second triplexer, and the fourth port of the second transmitting module is connected with the change-over switch module, a fifth port of the second transmitting module is connected with a third port of the master set receiving module, a first port of the second triplexer is connected with a second port of the master set receiving module, the first port of the master set receiving module is connected with a fourth port of the radio frequency transceiver, and the change-over switch module is connected with the first antenna and the second antenna;
when the radio frequency system is in a non-independent networking working mode, the first antenna is used for transmitting of a first low-frequency band and diversity reception of a combination of the first low-frequency band and a second low-frequency band, and the second antenna is used for transmitting of the second low-frequency band and main collection reception of the combination of the first low-frequency band and the second low-frequency band.
2. The radio frequency system according to claim 1,
when the radio frequency system is in a long term evolution network working mode, the first antenna is used for transmitting the first low frequency band and the second low frequency band, receiving the main set of the first low frequency band and receiving the main set of the second low frequency band, and the second antenna is used for diversity reception of the combination of the first low frequency band and the second low frequency band.
3. A radio frequency system according to claim 1 or 2, wherein the first triplexer comprises a first transmit port, a first receive port, and a first antenna port, and the second triplexer comprises a second transmit port, a second receive port, and a second antenna port;
the first transmitting port is used for circulating transmitting signals of the first low-frequency band, the first receiving port is used for circulating receiving signals of the combination of the first low-frequency band and the second low-frequency band, the first antenna port is used for circulating transmitting signals of the first low-frequency band and receiving signals at the same time, the second transmitting port is used for circulating transmitting signals of the second low-frequency band, the second receiving port is used for circulating receiving signals of the combination of the first low-frequency band and the second low-frequency band, and the second antenna port is used for circulating transmitting signals of the second low-frequency band and receiving signals at the same time.
4. The RF system of claim 3, wherein the switch module comprises any one of a three-pole three-throw 3P3T switch, a double-pole double-throw DPDT and single-pole double-throw SP2T combination switch, or a double-pole four-throw DP4T switch.
5. The radio frequency system according to claim 4,
when the switch module is the 3P3T switch, the first antenna port of the first triplexer is connected to the first T port of the 3P3T switch through the directional coupler, the fourth port of the second transmitter module is connected to the second T port of the 3P3T switch, the second port of the diversity receiver module is connected to the third T port of the 3P3T switch, the first P port of the 3P3T is connected to the first antenna, and the second P port of the 3P3T switch is connected to the second antenna;
when the switch module is the DPDT and SP2T combined switch, the first antenna port of the first triplexer is connected to the first T port of the SP2T switch through the directional coupler, the second port of the diversity receiving module is connected to the second T port of the SP2T switch, the fourth port of the second transmitting module is connected to the first T port of the DPDT switch, the P port of the SP2T switch is connected to the second T port of the DPDT switch, the first P port of the DPDT switch is connected to the first antenna, and the second P port of the DPDT switch is connected to the second antenna;
when the switch module is the DT4T switch, the first antenna port of the first triplexer is connected to the first T port of the DP4T switch through the directional coupler, the fourth port of the second transmitter module is connected to the second T port of the DP4T switch, the second port of the diversity receiver module is connected to the third T port of the DP4T switch, the first P port of the DP4T switch is connected to the first antenna, and the second P port of the DP4T switch is connected to the second antenna.
6. The rf system of claim 3, wherein the first transmit module comprises a multi-mode multi-band power amplifier, the second transmit module comprises a power amplifier, a duplexer, a filter and a transmit switch, the diversity receive module comprises a saw filter and a noise floor amplifier, and the main set receive module comprises a noise floor amplifier.
7. The radio frequency system of claim 3, wherein the constituent devices of the diversity receive module comprise Phase7 lite devices.
8. The radio frequency system of claim 3, wherein the first antenna and the second antenna are low frequency antennas.
9. The radio frequency system according to claim 1, wherein the first low frequency band comprises a B20 band and the second low frequency band comprises an N28A band.
10. An electronic device, comprising the radio frequency system of any one of claims 1 to 9, wherein the radio frequency system is configured to implement transmission and reception of the first low frequency band and transmission and reception of the second low frequency band when the radio frequency system is in a non-independent networking operation mode.
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| CN202010115934.5A CN111327344B (en) | 2020-02-25 | 2020-02-25 | Radio frequency system and electronic equipment |
| PCT/CN2021/071720 WO2021143756A1 (en) | 2020-01-17 | 2021-01-14 | Radio frequency system and electronic device |
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| CN202010115934.5A CN111327344B (en) | 2020-02-25 | 2020-02-25 | Radio frequency system and electronic equipment |
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| CN111327344B true CN111327344B (en) | 2021-08-10 |
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| GB2601434B (en) | 2020-06-29 | 2023-02-01 | Skyworks Solutions Inc | Dual connectivity power amplifier system |
| CN111970022B (en) * | 2020-08-24 | 2022-03-15 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
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| CN112398491B (en) * | 2020-11-17 | 2022-03-11 | 维沃移动通信有限公司 | Electronic device |
| CN114553250B (en) * | 2020-11-25 | 2023-11-10 | Oppo广东移动通信有限公司 | Radio frequency system and communication device |
| CN114640358B (en) * | 2020-12-16 | 2023-10-03 | Oppo广东移动通信有限公司 | Radio frequency PA Mid device, radio frequency receiving and transmitting system and communication equipment |
| CN114759943B (en) * | 2020-12-29 | 2023-06-02 | 华为技术有限公司 | Radio frequency front end module, and method and device for controlling radio frequency front end module |
| CN112737604B (en) * | 2020-12-29 | 2022-06-21 | Oppo广东移动通信有限公司 | Antenna switching circuit and method and electronic equipment |
| CN112751584B (en) * | 2020-12-29 | 2023-07-25 | 深圳市锐尔觅移动通信有限公司 | Switch, radio frequency circuit and terminal equipment |
| CN112769447B (en) * | 2020-12-31 | 2022-09-02 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN112769450B (en) * | 2021-01-21 | 2022-08-02 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN112994729B (en) * | 2021-02-03 | 2023-02-03 | 昆山睿翔讯通通信技术有限公司 | Mobile terminal radio frequency module and mobile terminal |
| CN113037323B (en) * | 2021-02-26 | 2022-10-18 | 维沃移动通信有限公司 | Radio frequency circuit, control method of radio frequency circuit and electronic equipment |
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