CN111800158B - Electronic equipment - Google Patents

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Publication number
CN111800158B
CN111800158B CN202010613966.8A CN202010613966A CN111800158B CN 111800158 B CN111800158 B CN 111800158B CN 202010613966 A CN202010613966 A CN 202010613966A CN 111800158 B CN111800158 B CN 111800158B
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signal
frequency band
transceiver
radio frequency
frequency
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CN111800158A (en
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洪晓锋
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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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
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides an electronic device, including: a main antenna for receiving a first signal of a first frequency band and a first signal of a second frequency band; a diversity antenna for receiving a second signal of the first frequency band and a second signal of the second frequency band; the radio frequency circuit is used for sending a first signal of a first frequency band and a first signal of a second frequency band to a transceiver by a first radio frequency channel and sending a second signal of the first frequency band and a second signal of the second frequency band to the transceiver by a second radio frequency channel under the condition that the current main carrier is determined to be the first frequency band according to the frequency band information of the signals; or, when it is determined that the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through a third radio frequency channel, and sending the second signal of the first frequency band and the second signal of the second frequency band to the transceiver through a fourth radio frequency channel.

Description

Electronic equipment
Technical Field
The present invention relates to the field of communications, and in particular, to an electronic device.
Background
To meet the peak rate per user and system capacity increase, one of the most straightforward approaches is to increase the system transmission bandwidth. Therefore, The LTE-Advanced system introduces a technology for increasing transmission bandwidth, that is, Carrier Aggregation (CA), but The prior art cannot simultaneously meet The requirement of an operator on Over The Air technology test (OTA) of a single frequency band and optimize The signal loss of each frequency band when The CA is implemented.
Disclosure of Invention
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
according to an aspect of the present application, there is provided an electronic device including:
a main antenna for receiving a first signal of a first frequency band and a first signal of a second frequency band;
a diversity antenna for receiving a second signal of the first frequency band and a second signal of the second frequency band;
a radio frequency circuit, configured to send a first signal of the first frequency band and a first signal of the second frequency band to a transceiver through a first radio frequency channel and send a second signal of the first frequency band to the transceiver through a second radio frequency channel when determining that the current main carrier is the first frequency band according to the frequency band information of the signal
Or, when it is determined that the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through a third radio frequency channel, and sending the second signal of the first frequency band and the second signal of the second frequency band to the transceiver through a fourth radio frequency channel.
In the above scheme, the radio frequency circuit includes: the path switcher is used for switching on the first radio frequency path between the main antenna and the first signal processor under the condition that the current main carrier is determined to be a first frequency band according to the frequency band information of the signal; and the second radio frequency path between the diversity antenna and a second signal processor; or, when it is determined that the current main carrier is the second frequency band, the third radio frequency path between the main antenna and the second signal processor is switched on; and turning on the fourth radio frequency path between the diversity antenna and the first signal processor;
the first signal processor is configured to send a first signal in a first frequency band and a first signal in a second frequency band to the transceiver through the first radio frequency channel when the current host carrier is in the first frequency band; or, when the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through the third radio frequency channel;
a second signal processor, configured to send a second signal in the first frequency band and a second signal in a second frequency band to the transceiver through the second radio frequency channel when the current host carrier is in the first frequency band; or, when the current main carrier is the second frequency band, the second signal of the first frequency band and the second signal of the second frequency band are sent to the transceiver through the fourth radio frequency channel.
In the foregoing solution, the first signal processor is further configured to filter the first signal in the first frequency band and the first signal in the second frequency band, and send the filtered first signal in the first frequency band and the filtered first signal in the second frequency band to the transceiver;
the second signal processor is further configured to filter the second signal in the first frequency band and the second signal in the second frequency band, and send the filtered second signal in the first frequency band and the filtered second signal in the second frequency band to the transceiver.
In the foregoing solution, the first signal processor includes:
a first phase-shift matcher, configured to perform phase-shift matching on the first signal in the first frequency band and the first signal in the second frequency band;
the first duplexer is used for filtering the first signal of the first frequency band after phase shift matching;
and the first filter is used for filtering the first signal of the second frequency band after phase shift matching.
In the foregoing solution, the second signal processor includes:
a second phase shift matcher, configured to perform phase shift matching on a second signal in the first frequency band and a second signal in the second frequency band;
the second duplexer is used for filtering the second signal of the second frequency band after phase shift matching;
and the second filter is used for filtering the second signal of the first frequency band after phase shift matching.
In the foregoing solution, the electronic device further includes:
the transceiver is configured to receive the first signal in the first frequency band, the first signal in the second frequency band, the second signal in the first frequency band, and the second signal in the second frequency band, which are sent by the radio frequency circuit.
In the foregoing solution, the radio frequency circuit is further configured to receive a third signal sent by the transceiver, and send the third signal to the main antenna through the first radio frequency path when determining that the transceiver is currently operating in the first frequency band according to the frequency band information of the third signal;
or, the third signal is sent to the main antenna through the third radio frequency channel under the condition that the current work in the second frequency band is determined according to the frequency band information of the third signal.
In the foregoing solution, the electronic device further includes:
a power amplifier for power amplifying the third signal;
the radio frequency circuit is used for sending the third signal after power amplification to the main antenna.
In the above scheme, the power amplifier is a multiband power amplifier.
In the above scheme, the path switcher is a double-pole double-throw switch.
The application provides an electronic device, including: an electronic device, comprising: a main antenna for receiving a first signal of a first frequency band and a first signal of a second frequency band; a diversity antenna for receiving a second signal of the first frequency band and a second signal of the second frequency band; the radio frequency circuit is used for sending a first signal of a first frequency band and a first signal of a second frequency band to a transceiver by a first radio frequency channel and sending a second signal of the first frequency band and a second signal of the second frequency band to the transceiver by a second radio frequency channel under the condition that the current main carrier is determined to be the first frequency band according to the frequency band information of the signals; or, when it is determined that the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through a third radio frequency channel, and sending the second signal of the first frequency band and the second signal of the second frequency band to the transceiver through a fourth radio frequency channel. Therefore, the receiving signal and the transmitting signal of the first frequency band and the receiving signal of the second frequency band are transmitted through the same radio frequency channel according to the frequency band information of the signals, and the receiving signal and the transmitting signal of the second frequency band and the receiving signal of the first frequency band are transmitted through the same radio frequency channel, so that two radio frequency channels of the same frequency band in different states can be separated, the OTA requirement of an operator on a single frequency band can be met, and the loss of signals of each frequency band can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of an electronic device according to the present application;
fig. 2 is a schematic flow chart of processing a received signal by an electronic device according to the present application.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
Fig. 1 is a schematic structural component diagram of an electronic device in the present application, for example, the electronic device may be a mobile phone, a computer, a digital broadcast terminal, an information transceiver device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like. As shown in fig. 1, the electronic device includes: a main antenna 10, a diversity antenna 20, radio frequency circuitry 30 and a transceiver 40.
The main antenna 10 is configured to receive a first signal in a first frequency band and a first signal in a second frequency band, which are sent by a base station; the diversity antenna 20 is used for receiving the second signal of the first frequency band and the second signal of the second frequency band transmitted by the base station.
Here, the first signal of the first frequency band and the second signal of the first frequency band may refer to different contents of the same frequency band, or may refer to the same content of the same frequency band. Similarly, the first signal of the second frequency band and the second signal of the second frequency band may refer to different contents of the same frequency band, or may refer to the same content of the same frequency band.
Specifically, when the network where the electronic device is located reaches a preset speed, the representation of the current network environment is better, and the first signal of the first frequency band and the second signal of the first frequency band received by the electronic device may refer to different contents of the same frequency band, so that the information acquisition amount of the electronic device may be increased; when the network where the electronic device is located does not reach the preset speed, the representation of the current network environment is poor, and the first signal of the first frequency band and the second signal of the first frequency band received by the electronic device may refer to the same content of the same frequency band, so that the information receiving sensitivity of the electronic device may be improved. Similarly, when the network where the electronic device is located reaches the preset speed, the representation of the current network environment is better, and the first signal of the second frequency band and the second signal of the second frequency band received by the electronic device may refer to different contents of the same frequency band, so that the information acquisition amount of the electronic device may be increased; when the network where the electronic device is located does not reach the preset speed, the representation of the current network environment is poor, and the first signal of the second frequency band and the second signal of the second frequency band received by the electronic device may refer to the same content of the same frequency band, so that the information receiving sensitivity of the electronic device may be improved.
In the present application, the signals received by the main antenna 10 and the diversity antenna 20 carry frequency band information, and when the main antenna 10 and the diversity antenna 20 receive the signals sent by the base station, the radio frequency circuit 30 is triggered.
The radio frequency circuit 30 may send a first signal of the first frequency band and a first signal of the second frequency band to the transceiver 40 through the first radio frequency channel when determining that the current main carrier is the first frequency band according to the frequency band information of the received signal; and transmitting a second signal of the first frequency band and a second signal of the second frequency band to the transceiver 40 with a second radio frequency path; or, in a case that it is determined that the current main carrier is the second frequency band, the first signal of the first frequency band and the first signal of the second frequency band are sent to the transceiver 40 by using a third radio frequency channel, and the second signal of the first frequency band and the second signal of the second frequency band are sent to the transceiver 40 by using a fourth radio frequency channel. When the transceiver 40 receives the first signal of the first frequency band, the first signal of the second frequency band, the second signal of the first frequency band, and the second signal of the second frequency band sent by the radio frequency circuit 30, the first signal of the first frequency band, the first signal of the second frequency band, the second signal of the first frequency band, and the second signal of the second frequency band may also be subjected to analog conversion to obtain a signal that can be identified by the electronic device.
For example, when the current base station transmits signals to the electronic device in a CA combination of the intermediate band + the intermediate band (BX + BY), and BX is used as a main carrier, the main antenna 10 of the electronic device can receive BX RX1(BX first signal) and BY RX1(BY first signal) transmitted BY the base station; the diversity antenna 20 is able to receive BX RX2(BX second signal) and BY RX2(BY second signal) transmitted BY the base station. When the radio frequency circuit 30 determines that the current BX is the main carrier according to the frequency band information carried BY the signal transmitted BY the base station, it transmits a BX RX1(BX first signal) and a BY RX1(BY first signal) to the transceiver 40 through the first radio frequency path; and transmitting BX RX2(BX second signal) and BY RX2(BY second signal) to transceiver 40 over a second radio frequency path.
Here, the rf circuit 30 is further configured to receive a third signal sent by the transceiver 40, and send the third signal to the main antenna 10 through the first rf path when determining that the current operation is in the first frequency band according to the frequency band information of the third signal; or, in the case of determining that the current operation is in the second frequency band according to the frequency band information of the third signal, the third signal is transmitted to the main antenna 10 through the third rf channel.
Here, the main antenna 10 has not only a signal receiving function but also a signal transmitting function, and the diversity antenna 20 has only a signal receiving function and does not have a signal transmitting function.
For example, when BX is the main carrier and the BY RX1(BX first signal) and BY RX1(BY first signal) transmitted BY the base station and received BY the main antenna 10 are transmitted to the transceiver 40 BY the rf circuit 30 through the first rf path, the BX TX (BX transmit signal) transmitted BY the transceiver 40 may be received BY the rf circuit 30, transmitted to the main antenna 10 through the first rf path, and transmitted to the base station BY the main antenna 10. Since the BX TX (BX transmit signal), the BX RX1(BX receive signal), and the BY RX1(BY receive signal) are transmitted in the same rf path (first rf path), when signals are matched in the rf circuit 30, the BX TX (BX transmit signal) can be directly adjusted based on preset parameters, so that the minimum loss is achieved when the BX TX (BX transmit signal) is transmitted through the main antenna 10.
When the BY RX1(BX first signal) and the BY RX1(BY first signal) transmitted BY the base station and received BY the main antenna 10 are transmitted BY the radio frequency circuit 30 to the transceiver 40 through the third radio frequency path with the BY as the main carrier, the radio frequency circuit 30 may also receive the BY TX (BY transmit signal) transmitted BY the transceiver 40 and transmit the BY TX (BY transmit signal) to the main antenna 10 through the third radio frequency path, and then the BY TX (BY transmit signal) is transmitted BY the main antenna 10 to the base station. Since the BY TX (BY transmission signal), the BX RX1(BX reception signal), and the BY RX1(BY reception signal) are transmitted in the same rf path (third rf path), when signals are matched in the rf circuit 30, signal adjustment and calibration can be directly performed on the BY TX (BY transmission signal) based on preset parameters, so that the minimum loss is achieved when the BY TX (BY transmission signal) is transmitted through the main antenna 10.
In the present application, the transceiver 40 may specifically be a modem. When transceiver 40 receives BX RX2(BX second signal) and BY RX2(BY second signal); alternatively, when BX RX1(BX first signal) and BY RX1(BY first signal) are received, BX RX2(BX second signal) and BY RX2(BY second signal) may also be paired; alternatively, BX RX1(BX first signal) and BY RX1(BY first signal) are signal converted to obtain a digital signal that can be recognized BY the electronic device. And when the transceiver 40 transmits the BY TX (BY transmit signal) or the BX TX (BX transmit signal) to the main antenna, the BY TX (BY transmit signal) or the BX TX (BX transmit signal) may be converted into an analog signal capable of being transmitted along the cable and transmitted to the base station.
In this application, the electronic device further includes: a power amplifier 50.
Specifically, when the transceiver 40 transmits the third signal to the main antenna 10, the third signal needs to be power-amplified by the power amplifier 50, and after the power amplifier 50 power-amplifies the third signal transmitted by the transceiver 40, the radio frequency circuit 30 is triggered, and the radio frequency circuit 30 transmits the power-amplified third signal to the main antenna 10.
Here, the power amplifier 50 may be specifically a multiband power amplifier.
In this application, the rf circuit 30 specifically includes: a path switch 301, a first signal processor 302 and a second signal processor 303.
The path switch 301 is configured to, according to the frequency band information of the signal, turn on a first radio frequency path between the main antenna 10 and the first signal processor 302 when determining that the current main carrier is the first frequency band; and turning on a second radio frequency path between the diversity antenna 20 and the second signal processor 303; or, the path switch 301, when determining that the current main carrier is the second frequency band according to the frequency band information of the signal, switches on the third radio frequency path between the main antenna 10 and the second signal processor 303; and a fourth radio frequency path between the diversity antenna 20 and the first signal processor 302. In case the path switch 301 switches on the first and second radio frequency paths, the first and second signal processors 302 and 303 are triggered. Transmitting, by the first signal processor 302, a first signal of the first frequency band and a first signal of the second frequency band to the transceiver 40 through the first radio frequency path when the current host carrier is the first frequency band; and transmitting a second signal of the first frequency band and a second signal of the second frequency band to the transceiver 40 through the second radio frequency path by the second signal processor 303 in case that the current host carrier is the first frequency band.
Alternatively, in the case where the path switch 301 turns on the third and fourth rf paths, the first and second signal processors 302 and 303 are triggered. The first signal of the first frequency band and the first signal of the second frequency band are transmitted to the transceiver 40 through the third rf channel by the first signal processor 302 in the case where the current host carrier is the second frequency band. And transmitting a second signal of the first frequency band and a second signal of the second frequency band to the transceiver 40 through the fourth radio frequency path by the second signal processor 303 when the current main carrier is the second frequency band.
Here, the path switcher 301 may be a double-pole double-throw switch, and may be a multi-pole multi-throw switch.
In this application, when the first signal processor 302 sends the first signal of the first frequency band and the first signal of the second frequency band to the transceiver 40, the first signal of the first frequency band and the first signal of the second frequency band may be filtered separately, and the first signal of the first frequency band and the first signal of the second frequency band after being filtered are sent to the transceiver 40. Similarly, when the second signal processor 303 sends the second signal of the first frequency band and the second signal of the second frequency band to the transceiver 40, the second signal processor 303 may further filter the second signal of the first frequency band and the second signal of the second frequency band, and send the filtered second signal of the first frequency band and the filtered second signal of the second frequency band to the transceiver 40.
In this application, the first signal processor 302 may include: a first phase-shift matcher 3021, a first duplexer 3022, and a first filter 3023.
The first phase shift matcher 3021 is configured to perform phase shift matching on a first signal in a first frequency band and a first signal in a second frequency band; and triggers the first duplexer 3022 and the first filter 3023 after matching is completed; the first duplexer 3022 filters the phase-shifted and matched first signal of the first frequency band, and transmits the filtered first signal of the first frequency band to the transceiver 40; the phase-shift matched first signal of the second frequency band is filtered by the first filter 3023, and then the filtered first signal of the second frequency band is transmitted to the transceiver 40.
Here, the first duplexer 3022 is also configured to filter the third signal of the first frequency band transmitted from the transceiver 40 to the main antenna 10. This third signal is specifically the signal transmitted by the main antenna 10 to the base station.
In this application, the second signal processor 303 may include: a second phase shift matcher 3031, a second duplexer 3032, and a second filter 3033. The second phase shift matcher 3031 is configured to perform phase shift matching on the second signal in the first frequency band and the second signal in the second frequency band; and triggers the second duplexer 3032 and the second filter 3033 after matching is completed. Filtering, by the second duplexer 3032, the phase-shifted and matched second signal in the second frequency band, and sending the filtered second signal in the second frequency band to the transceiver 40; the second signal of the first frequency band after the phase shift matching is filtered by the second filter 3033, and the filtered second signal of the first frequency band is transmitted to the transceiver 40.
Here, the second duplexer 3032 is also used to filter the third signal of the second frequency band transmitted from the transceiver 40 to the main antenna 10. The third signal is specifically a signal transmitted from the main antenna 10 to the base station.
This application can satisfy the operator to the OTA requirement of single-frequency channel through the transmitting signal of sending different frequency channels at different radio frequency access to the basic station, can reduce the loss of each frequency channel signal again.
Fig. 2 is a schematic flow chart of the electronic device processing the received signal in the present application, as shown in fig. 2:
when the base station operates with the CA combination of BX + BY and BX as the main carrier (i.e., TX is done BY BX), the main antenna 10 receives the BX RX1 signal and the BY RX1 signal transmitted BY the base station, and the diversity antenna 20 receives the BX RX2 signal and the BY RX2 signal transmitted BY the base station. At this time, the path switch 301 (i.e. the double pole double throw switch) conducts the first rf path (i.e. the 1-2 port is conducted) and the second rf path (i.e. the 3-4 port is conducted). The BX RX1 signal and the BY RX1 signal are transmitted to a first phase-shift matcher 3021 (also referred to as a first phase-shift matching circuit) through a first radio frequency path. After phase-shift matching is performed on the BX RX1 signal and the BY RX1 signal BY the first phase-shift matcher 3021, the BX RX1 signal after phase-shift matching is filtered BY the first duplexer 3022, and the filtered BX RX1 signal is transmitted to the transceiver 40. The BY RX1 signal is filtered BY the second filter 3033, and the filtered BY RX1 signal is transmitted to the transceiver 40. After receiving the BX RX1 signal and the BY RX1 signal, the transceiver 40 performs analog-to-digital conversion on the BX RX1 signal and the BY RX1 signal to obtain signals that can be recognized BY the electronic device.
The BX RX2 signal and the BY RX2 signal are transmitted to the second phase shift matching circuit 3031 through the second radio frequency path. After phase shift matching is performed on the BX RX2 signal and the BY RX2 signal BY the second phase shift matching circuit 3031, the BY RX2 signal after phase shift matching is filtered BY the second duplexer 3032, and the filtered BY RX2 signal is transmitted to the transceiver 40. The BX RX2 signal is filtered by the first filter 3023 and the filtered BX RX2 signal is transmitted to the transceiver 40. After receiving the BX RX2 signal and the BY RX2 signal, the transceiver 40 performs analog-to-digital conversion on the BX RX2 signal and the BY RX2 signal to obtain signals that can be recognized BY the electronic device.
Here, the transceiver 40 may further transmit a BX TX signal to the main antenna 10, where the BX TX signal is power-amplified by the power amplifier 50 and then transmitted to the first duplexer 3022, the BX TX signal is filtered by the first duplexer 3022 and then transmitted to the first phase-shift matcher 3021 (which may also be referred to as a first phase-shift matching circuit) by the first duplexer 3022, and the first phase-shift matcher 3021 performs tuning in a direction in which the BX TX signal loss is small, so that the BX TX loss is smaller than 0.5 dB. And the adjusted BX TX signal is sent to the main antenna 10 through the first radio frequency channel, and then the main antenna 10 sends the BX TX signal to the base station.
When the base station operates with the CA combination of BX + BY and BY as the primary carrier (i.e., TX is done BY), the primary antenna 10 receives the BY RX1 signal and the BX RX1 signal transmitted BY the base station, and the diversity antenna 20 receives the BX RX2 signal and the BY RX2 signal transmitted BY the base station. At this time, the path switch 301 (i.e., the double pole double throw switch) turns on the third rf path (i.e., the 1-4 port is turned on) and the fourth rf path (i.e., the 3-2 port is turned on). The BX RX1 signal and the BY RX1 signal are transmitted to the second phase shift matching circuit 3031 through a third radio frequency path. After phase shift matching is performed on the BX RX1 signal and the BY RX1 signal BY the second phase shift matching circuit 3031, the BY RX1 signal after phase shift matching is filtered BY the second duplexer 3032, and the filtered BY RX1 signal is transmitted to the transceiver 40. The BX RX1 signal is filtered by the first filter 3023 and the filtered BX RX1 signal is transmitted to the transceiver 40. After receiving the BX RX1 signal and the BY RX1 signal, the transceiver 40 performs analog-to-digital conversion on the BX RX1 signal and the BY RX1 signal to obtain signals that can be recognized BY the electronic device.
The BX RX2 signal and the BY RX2 signal are transmitted to the first phase shifter 3021 through the fourth rf path. After phase-shift matching is performed on the BX RX2 signal and the BY RX2 signal BY the first phase-shift matcher 3021, the BX RX2 signal after phase-shift matching is filtered BY the first duplexer 3022, and the filtered BX RX2 signal is transmitted to the transceiver 40. The BY RX2 signal is filtered BY the second filter 3033, and the filtered BY RX2 signal is transmitted to the transceiver 40. After receiving the BX RX2 signal and the BY RX2 signal, the transceiver 40 performs analog-to-digital conversion on the BX RX2 signal and the BY RX2 signal to obtain signals that can be recognized BY the electronic device.
Here, the transceiver 40 may further transmit a BY TX signal to the main antenna 10, where the BY TX signal is power-amplified BY the power amplifier 50 and then transmitted to the second duplexer 3032, the second duplexer 3032 filters the BY TX signal, and then the second duplexer 3032 transmits the BY TX signal to the second phase shift matcher 3031 (also referred to as a first phase shift matching circuit), and the first phase shift matcher 3031 performs tuning in a direction biased BY the BY TX signal in a small loss direction, so that the loss of the BY TX signal is less than 0.5 dB. And the adjusted BY TX is sent to the main antenna 10 through the third rf path, and then the main antenna 10 sends the BY TX signal to the base station.
According to the method and the device, the receiving signals (downlink data) of two different frequency bands and the transmitting signals (uplink data) of one frequency band are transmitted through one radio frequency channel, and the direction with small loss of the transmitting signals can be deviated, so that the requirement of an operator on a single frequency band is met, and the design cost can be reduced.
In the present application, when the base station operates in a BX single band, the main antenna 10 receives a BX RX1 signal transmitted by the base station, and the diversity antenna 20 receives a BX RX2 signal transmitted by the base station. At this time, the path switch 301 (i.e. the double pole double throw switch) conducts the first rf path (i.e. the 1-2 port is conducted) and the second rf path (i.e. the 3-4 port is conducted). The BX RX1 signal is transmitted to the first phase-shift matcher 3021 through a first radio frequency path. After phase-shift matching is performed on the BX RX1 signal by the first phase-shift matcher 3021, the phase-shift matched BX RX1 signal is filtered by the first duplexer 3022, and the filtered BX RX1 signal is transmitted to the transceiver 40. The transceiver 40 receives the BX RX1 signal and performs analog-to-digital conversion on the BX RX1 signal to obtain a signal that can be recognized by the electronic device.
The BX RX2 signal is transmitted to the second phase shift matching circuit 3031 via the second rf path. After phase shift matching of the BX RX2 signal by the second phase shift matching circuit 3031, the BX RX2 signal is filtered by the first filter 3023, and the filtered BX RX2 signal is transmitted to the transceiver 40. The transceiver 40 receives the BX RX2 signal and performs analog-to-digital conversion on the BX RX2 signal to obtain a signal that can be recognized by the electronic device.
Here, the transceiver 40 may further transmit a BX TX signal to the main antenna 10, where the BX TX signal is power-amplified by the power amplifier 50 and then transmitted to the first duplexer 3022, the BX TX signal is filtered by the first duplexer 3022 and then transmitted to the first phase-shift matcher 3021 (which may also be referred to as a first phase-shift matching circuit) by the first duplexer 3022, and the first phase-shift matcher 3021 performs tuning in a direction in which the BX TX signal loss is small, so that the BX TX loss is smaller than 0.5 dB. And the adjusted BX TX signal is sent to the main antenna 10 through the first radio frequency channel, and then the main antenna 10 sends the BX TX signal to the base station.
When the base station operates in a BY single band, the main antenna 10 receives a BY RX1 signal transmitted BY the base station, and the diversity antenna 20 receives a BY RX2 signal transmitted BY the base station. At this time, the path switch 301 (i.e., the double pole double throw switch) turns on the third rf path (i.e., the 1-4 port is turned on) and the fourth rf path (i.e., the 3-2 port is turned on). The BY RX1 signal is transmitted through the third rf path to the second phase shift matching circuit 3031. After the BY RX1 signal is phase-shifted and matched BY the second phase shift matching circuit 3031, the BY RX1 signal after phase shift matching is filtered BY the second duplexer 3032, and the filtered BY RX1 signal is sent to the transceiver 40. Transceiver 40 receives the BY RX1 signal and performs analog-to-digital conversion on the BY RX1 signal to obtain a signal that can be recognized BY the electronic device.
The BY RX2 signal is transmitted to the first phase-shift matcher 3021 through a fourth radio frequency path. After the BY RX2 signal is phase-shifted and matched BY the first phase-shift matcher 3021, the BY RX2 signal is filtered BY the second filter 3033, and the filtered BY RX2 signal is sent to the transceiver 40. Transceiver 40 receives the BY RX2 signal and performs analog-to-digital conversion on the BY RX2 signal to obtain a signal that can be recognized BY the electronic device.
Here, the transceiver 40 may further transmit a BY TX signal to the main antenna 10, where the BY TX signal is power-amplified BY the power amplifier 50 and then transmitted to the second duplexer 3032, the second duplexer 3032 filters the BY TX signal, and then the second duplexer 3032 transmits the BY TX signal to the second phase shift matcher 3031 (also referred to as a first phase shift matching circuit), and the first phase shift matcher 3031 performs tuning in a direction biased BY the BY TX signal in a small loss direction, so that the loss of the BY TX signal is less than 0.5 dB. And the adjusted BY TX is sent to the main antenna 10 through the third rf path, and then the main antenna 10 sends the BY TX signal to the base station.
This application can be partial to the direction that this transmission signal loss is little to carry out the timing through the received signal (down data) that sends two different frequency channels and the transmitting signal (up data) of a frequency channel at a radio frequency access to reduced the timing degree of difficulty to this transmitting signal, can satisfy the operator to the requirement of single-frequency channel promptly, can reduce design cost again.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. An electronic device, comprising:
a main antenna for receiving a first signal of a first frequency band and a first signal of a second frequency band;
a diversity antenna for receiving a second signal of the first frequency band and a second signal of the second frequency band;
the radio frequency circuit is used for sending a first signal of a first frequency band and a first signal of a second frequency band to a transceiver by a first radio frequency channel and sending a second signal of the first frequency band and a second signal of the second frequency band to the transceiver by a second radio frequency channel under the condition that the current main carrier is determined to be the first frequency band according to the frequency band information of the signals;
or, when it is determined that the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through a third radio frequency channel, and sending the second signal of the first frequency band and the second signal of the second frequency band to the transceiver through a fourth radio frequency channel.
2. The electronic device of claim 1, the radio frequency circuitry, comprising:
the path switcher is used for switching on the first radio frequency path between the main antenna and the first signal processor under the condition that the current main carrier is determined to be a first frequency band according to the frequency band information of the signal; and the second radio frequency path between the diversity antenna and a second signal processor;
or, when it is determined that the current main carrier is the second frequency band, the third radio frequency path between the main antenna and the second signal processor is switched on; and turning on the fourth radio frequency path between the diversity antenna and the first signal processor;
the first signal processor is configured to send a first signal in a first frequency band and a first signal in a second frequency band to the transceiver through the first radio frequency channel when the current host carrier is in the first frequency band; or, when the current main carrier is the second frequency band, sending the first signal of the first frequency band and the first signal of the second frequency band to the transceiver through the third radio frequency channel;
a second signal processor, configured to send a second signal in the first frequency band and a second signal in a second frequency band to the transceiver through the second radio frequency channel when the current host carrier is in the first frequency band; or, when the current main carrier is the second frequency band, the second signal of the first frequency band and the second signal of the second frequency band are sent to the transceiver through the fourth radio frequency channel.
3. The electronic device of claim 2, wherein the first signal processor is further configured to filter the first signal in the first frequency band and the first signal in the second frequency band, and send the filtered first signal in the first frequency band and the filtered first signal in the second frequency band to the transceiver;
the second signal processor is further configured to filter the second signal in the first frequency band and the second signal in the second frequency band, and send the filtered second signal in the first frequency band and the filtered second signal in the second frequency band to the transceiver.
4. The electronic device of claim 2, the first signal processor, comprising:
a first phase-shift matcher, configured to perform phase-shift matching on the first signal in the first frequency band and the first signal in the second frequency band;
the first duplexer is used for filtering the first signal of the first frequency band after phase shift matching;
and the first filter is used for filtering the first signal of the second frequency band after phase shift matching.
5. The electronic device of claim 2, the second signal processor, comprising:
a second phase shift matcher, configured to perform phase shift matching on a second signal in the first frequency band and a second signal in the second frequency band;
the second duplexer is used for filtering the second signal of the second frequency band after phase shift matching;
and the second filter is used for filtering the second signal of the first frequency band after phase shift matching.
6. The electronic device of claim 1, further comprising:
the transceiver is configured to receive the first signal in the first frequency band, the first signal in the second frequency band, the second signal in the first frequency band, and the second signal in the second frequency band, which are sent by the radio frequency circuit.
7. The electronic device of claim 1, wherein the radio frequency circuit is further configured to receive a third signal sent by the transceiver, and send the third signal to the main antenna through the first radio frequency path when determining that the electronic device is currently operating in the first frequency band according to frequency band information of the third signal;
or, the third signal is sent to the main antenna through the third radio frequency channel under the condition that the current work in the second frequency band is determined according to the frequency band information of the third signal.
8. The electronic device of claim 7, further comprising:
a power amplifier for power amplifying the third signal;
the radio frequency circuit is used for sending the third signal after power amplification to the main antenna.
9. The electronic device of claim 8, the power amplifier is a multi-band power amplifier.
10. The electronic device of claim 2, the path switcher being a double pole double throw switch.
CN202010613966.8A 2020-06-30 2020-06-30 Electronic equipment Active CN111800158B (en)

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