CN112751584B - Switch, radio frequency circuit and terminal equipment - Google Patents
Switch, radio frequency circuit and terminal equipment Download PDFInfo
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- CN112751584B CN112751584B CN202011598515.8A CN202011598515A CN112751584B CN 112751584 B CN112751584 B CN 112751584B CN 202011598515 A CN202011598515 A CN 202011598515A CN 112751584 B CN112751584 B CN 112751584B
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Classifications
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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
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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- Transceivers (AREA)
Abstract
The embodiment of the invention discloses a switch, a radio frequency circuit and terminal equipment, which are used for transmitting signals in different frequency bands when the switch is switched to different ports, and particularly the switch can support the transmission of MHB signals without using a combiner. The embodiment of the invention can comprise the following steps: a first port, a second port, a third port, a fourth port, and a fifth port; the first port is used for receiving and transmitting a first full-frequency band signal; the second port is used for receiving and transmitting a second full-frequency band signal; the third port is used for transmitting a middle-high band MHB signal; the fourth port is used for transmitting an N77 frequency band signal; and the fifth port is used for transmitting an N79 frequency band signal.
Description
Technical Field
The present invention relates to the field of terminal devices, and in particular, to a switch, a radio frequency circuit, and a terminal device.
Background
In the prior art, if the radio frequency circuit is to realize the co-transmission of the medium-high frequency band signal and the N77 frequency band signal, or to realize the co-transmission of the medium-high frequency band signal and the N79 frequency band signal, a combiner is needed to be used for carrying out, however, the addition of the combiner in the radio frequency circuit can cause a certain insertion loss of the transmission frequency band. Moreover, the switch connected to the N77 band receiving module or the switch connected to the N79 band receiving module cannot transmit the medium-high band signal.
Disclosure of Invention
The embodiment of the invention provides a switch, a radio frequency circuit and terminal equipment, which are used for transmitting signals in different frequency bands when the switch is switched to different ports, and particularly the switch can support the transmission of MHB signals without using a combiner.
In view of this, a first aspect of the present invention provides a switch, which may include: a first port, a second port, a third port, a fourth port, and a fifth port;
the first port is used for receiving and transmitting a first full-frequency band signal;
the second port is used for receiving and transmitting a second full-frequency band signal;
the third port is used for transmitting the middle-high band MHB signal;
the fourth port is used for transmitting an N77 frequency band signal;
the fifth port is used for transmitting an N79 frequency band signal;
wherein the first full band signal and the second full band signal comprise the MHB signal, the N77 band signal and the N79 band signal.
A second aspect of an embodiment of the present invention provides a radio frequency circuit, which may include: the switch according to the first aspect of the embodiment of the invention.
A third aspect of an embodiment of the present invention provides a terminal device, which may include: the switch according to the first aspect of the embodiment of the invention, or the radio frequency circuit according to the second aspect of the embodiment of the invention.
From the above technical solutions, the embodiment of the present invention has the following advantages:
in an embodiment of the present application, the switch includes a first port, a second port, a third port, a fourth port, and a fifth port; the first port is used for receiving and transmitting a first full-frequency band signal; the second port is used for receiving and transmitting a second full-frequency band signal; the third port is used for transmitting a middle-high band MHB signal; the fourth port is used for transmitting an N77 frequency band signal; the fifth port is configured to transmit an N79 frequency band signal; wherein the first full band signal and the second full band signal comprise the MHB signal, the N77 band signal and the N79 band signal. When the switch is switched to a different port, different frequency band signals can be transmitted, and particularly, the switch can support the transmission of MHB signals without using a combiner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments and the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings.
FIG. 1 is a schematic diagram of one embodiment of a prior art RF circuit;
FIG. 2 is a schematic diagram of one embodiment of a prior art switch;
FIG. 3 is a schematic diagram of another embodiment of a prior art RF circuit;
FIG. 4 is a schematic diagram of one embodiment of a switch in an embodiment of the invention;
FIG. 5 is a schematic diagram of another embodiment of a switch according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an embodiment of a radio frequency circuit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another embodiment of a radio frequency circuit according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of another embodiment of a radio frequency circuit according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another embodiment of a radio frequency circuit according to an embodiment of the present invention;
fig. 10 is a schematic diagram of an embodiment of a terminal device according to an embodiment of the present invention;
fig. 11 is a schematic diagram of another embodiment of a terminal device in an embodiment of the present invention;
FIG. 12 is a schematic diagram of one embodiment of a method of switch connection in an embodiment of the present invention;
fig. 13 is a schematic diagram of another embodiment of a method for connecting a switch according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a switch, a radio frequency circuit and terminal equipment, which are used for transmitting signals in different frequency bands when the switch is switched to different ports, and particularly the switch can support the transmission of MHB signals without using a combiner.
In order that those skilled in the art will better understand the present invention, reference will now be made to the accompanying drawings in which embodiments of the invention are illustrated, it being apparent that the embodiments described are only some, but not all, of the embodiments of the invention. Based on the embodiments of the present invention, it should be understood that the present invention is within the scope of protection.
The following will first make a brief description of the terms involved in the embodiments of the present invention, as follows:
5G technology: the 5th Generation Mobile Networks technology is the latest generation of cellular mobile communication technology, and the performance goals of the 5G technology may be high data rates, reduced latency, energy conservation, reduced cost, increased system capacity, and large-scale device connectivity.
MIMO: multi Input Multi Output, mimo, is an antenna system in which a plurality of antennas are used at both a transmitting end and a receiving end to form a plurality of channels between transmission and reception in order to greatly improve channel capacity. The MIMO system has the obvious characteristics of extremely high spectrum utilization efficiency, and gains in reliability and effectiveness are obtained by utilizing space resources on the basis of fully utilizing the existing spectrum resources.
RX: a Receiver receives; TX: transmitter, transmit. Wherein X is a pictographic symbol representing the intersection. RX and TX are in pairs in the light.
SRS: sounding Reference Signal, an uplink sounding reference signal, which is used for estimating uplink channel frequency domain information and performing frequency selective scheduling; and/or the method is used for estimating an uplink channel and performing downlink beam shaping. The SRS function is a new function of the 5G technology, and SRS signals transmitted by the base station when the base station would be 1T4R are sequentially transmitted on the 4 receiving antennas once, so that the base station knows the downlink channel conditions corresponding to the 4 receiving antennas after receiving the SRS signals, and then performs downlink MIMO better. Similarly, when 2T4R is used, each transmitting antenna corresponds to 2 receiving antennas, and when the base station performs downlink DL MIMO channel, the base station can know the DL MIMO channel condition in advance.
PRX: primary reception, the Primary set, for an antenna, which can transmit and Receive signals. The number of antennas of the main set antenna may be one or more, and is not particularly limited herein.
DRX: diversity Receive diversity, which is an antenna that can only receive signals. The number of diversity antennas may be one or plural, and is not particularly limited herein.
TDD: time Division Duplexing, time division duplex, means that uplink and downlink are transmitted in the same frequency band, that is, the reciprocity of uplink and downlink channels is provided, that is, the propagation characteristics of the uplink and downlink channels are consistent.
NR: new Radio, new air interface, is brand New air interface, is the loop Radio frequency part between terminal equipment and active base station.
HB: the High Band, HB Band range is 2300MHz-2690MHz.
MB: mid Band, MB Band range is 1710MHz-2170MHz.
LB: low Band, low Band, LB Band range is 663MHz-960MHz.
PA: and the amplifier is used for amplifying the frequency band signal power of different frequency bands and ensuring that the frequency band signal can be fed to the antenna for transmission.
PCB: printed Circuit Board A printed circuit board, also called a printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.
In one implementation, as shown in fig. 1, a diagram of one embodiment of a prior art radio frequency circuit is shown. In fig. 1, the radio frequency circuit may include: antenna 101, test seat 102, combiner 103, single-pole double-throw SP2T switch 104, specific frequency band amplifier PA module 105, middle-high frequency band MHB receiving RX module 106, N77 frequency band RX module 107, N79 frequency band RX module 108, switch 109, N77 frequency band PA module 110, N79 frequency band PA module 111.
When the single-pole double-throw SP2T switch 104 is connected to the specific frequency band PA module 105, the antenna 101 is configured to receive and transmit a specific frequency band signal; when SP2T104 is connected to MHB RX module 106, antenna 101 is configured to receive MHB signals; antenna 101 is also configured to receive and transmit an N77 band signal, and/or an N79 band signal. Wherein the specific frequency band signal may include, but is not limited to, at least one of: an N1 band signal, an N3 band signal, an N38 band signal, an N40 band signal, an N41 band signal, and the like.
Test socket 102 is used to test radio frequency circuitry for fault conditions including open circuits, and/or short circuits.
And the combiner 103 is used for combining the input multi-band signals together and outputting the signals to the same indoor distribution system.
A single pole double throw SP2T switch 104 for connecting the specific frequency band PA module 105 and the combiner 103; or, the MHB RX module 106 and the combiner 103 are connected.
The specific frequency band PA module 105 is configured to transmit and receive a specific frequency band signal.
The middle-high band MHB receive RX module 106 is configured to receive the middle-high band MHB signal and transmit the MHB signal to the transceiver. Wherein the transceiver is configured to perform analog-to-digital conversion or digital-to-analog conversion on the MHB signal.
An N77 band RX module 107, configured to receive the N77 band signal.
The N79 band RX module 108 is configured to receive the N79 band signal.
A switch 109, configured to connect the N77 band RX module 107 and the combiner 103; or, connecting the N79 frequency band RX module 108 with the combiner 103; or, connecting the N77 band PA module 110 with the combiner 103; or, the N79-band PA module 111 is connected to the combiner 103.
The N77 band PA module 110 is configured to receive and transmit an N77 band signal.
And the N79-band PA module 111 is used for receiving and transmitting signals in the N79-band.
As shown in fig. 2, one embodiment of a prior art switch is shown. In fig. 2, the switch 109 may include: a first port 1091, a second port 1092, a third port 1093, a fourth port 1094, a fifth port 1095, and a sixth port 1096.
The first port 1091 is connected to the combiner 103, and the first port 1091 is configured to receive and transmit an N77 band signal and/or an N79 band signal.
The second port 1092 is connected to the combiner 103, and the second port 1092 is configured to receive and transmit an N77 band signal and/or an N79 band signal.
It should be noted that, when the first port 1091 and the second port 1092 are one port, the ports may be used to transmit and receive signals in the N77 band and/or signals in the N79 band. When the first port 1091 is configured to receive an N77 band signal, the second port 1092 is configured to transmit an N77 band signal; when the first port 1091 is configured to receive an N79 band signal, the second port 1092 is configured to transmit an N79 band signal; when the second port 1092 is configured to receive an N77 band signal, the first port 1091 is configured to transmit an N77 band signal; the first port 1091 is configured to transmit an N77 band signal when the second port 1092 is configured to receive an N77 band signal.
The third port 1093 is an air port. The fourth port 1094 is connected to the N77 band RX module 107, and the fourth port 1094 is configured to transmit an N77 band signal.
The fifth port 1095 is connected to the N79 band RX module 108, and the fifth port 1095 is configured to transmit an N79 band signal.
The sixth port 1096 is connected to the N77 band PA module 110, and the sixth port 1096 is configured to receive and transmit an N77 band signal; and/or, the sixth port 1096 is connected to the N79-band PA module 111, and the sixth port 1096 is configured to receive and transmit an N79-band signal.
Fig. 3 shows another embodiment of a prior art rf circuit. In fig. 3, the radio frequency circuit may include: combiner 103, N77 band RX module 107, N79 band RX module 108, first port 1091, second port 1092, third port 1093, fourth port 1094, fifth port 1095, sixth port 1096, N77 band PA module 110, N79 band PA module 111.
Illustratively, when antenna 101 receives an MHB RX signal, the MHB RX signal is transmitted to test seat 102; test socket 102 transmits the MHB RX signal to combiner 103; combiner 103 transmits the MHB RX signal to SP2T switch 104; the SP2T switch 104 transmits the MHB RX signal to the MHB RX module 106; the MHB RX module 106 transmits the MHB RX signal to the transceiver. The transceiver processes the MHB RX signal, either analog-to-digital or digital-to-analog.
Illustratively, the band-specific PA module 105 transmits TX signals to the SP2T switch 104; the SP2T switch 104 sends the TX signal to the combiner 103; the combiner 103 sends the TX signal to the test socket 102; test socket 102 transmits the TX signal to antenna 101. The TX signal may be an SRS signal.
In the following, by way of example, the technical solution of the present invention is further described, as shown in fig. 4, which is a schematic diagram of an embodiment of a switch in the embodiment of the present invention, where the switch may include: a first port 1091, a second port 1092, a third port 1093, a fourth port 1094, and a fifth port 1095;
a first port 1091 for receiving and transmitting a first full band signal;
a second port 1092 for receiving and transmitting a second full band signal;
a third port 1093 for transmitting mid-high band MHB signals;
a fourth port 1094 configured to transmit an N77 band signal;
a fifth port 1095 configured to transmit an N79 band signal;
wherein the first full band signal and the second full band signal may include, but are not limited to: the MHB signal, the N77 band signal, and the N79 band signal.
Illustratively, the first full band signal may have a band range of 617MHz to 5925MHz; the explanation of the second full-band signal is similar to that of the first full-band signal, and detailed description is omitted here; the frequency range of the MHB signal can be 1710MHz-2690MHz; the frequency range of the N77 frequency band signal can be 3300MHz-4200MHz; the frequency range of the N79 frequency band signal can be 4400MHz-5000MHz.
In this embodiment, when the switch is switched to a different port, signals of different frequency bands can be transmitted, and in particular, the switch can support the transmission of MHB signals without using a combiner.
The connection between the first port 1091 and the third port 1093, the fourth port 1094, or the fifth port 1095 is implemented inside the switch 109, or the connection between the second port 1092 and the third port 1093, the fourth port 1094, or the fifth port 1095 is implemented inside the switch 109 by switching.
Optionally, a first port 1091 is coupled to the first antenna 1011 and a second port 1092 is coupled to the second antenna 1012.
Wherein the first port 1091 and the second port 1092 may be the same port. When the first port 1091 and the second port 1092 are the same port, the first antenna 1011 and the second antenna 1012 are the same antenna. The first antenna 1011 and the second antenna 1012 are both for transmitting full band signals.
In this embodiment, when the first antenna 1011 and the second antenna 1012 receive signals in different frequency bands, the switch can switch to the port corresponding to the signal, so that the signal can be transmitted. The switch can support the transmission of the MHB signal without using a combiner, can reduce the insertion loss of a channel where the MHB signal is located, and can reduce the insertion loss of a channel where the N77 frequency band signal or the N79 frequency band signal is located, thereby improving the sensitivity of the channel where the signals of different frequency bands are located when receiving the signals of corresponding frequency bands.
Optionally, the third port 1093 is connected to the middle-high band MHB receiving RX module 106; a third port 1093 for transmitting MHB signals to the mid-high band MHB receive RX module 106.
It should be noted that the MHB RX module 106 may include a first PA1061 and/or a first filter 1062. Wherein the first PA1061 is used to amplify the MHB signal; first filter 1062 filters the MHB signal.
In this embodiment, when the switch is switched to the third port 1093, the transmission of the MHB signal may be supported without using a combiner, i.e., the MHB signal may be transmitted to the mid-high band MHB receiving RX module 106.
Optionally, the fourth port 1094 is connected to the N77 band RX module 107; a fourth port 1094 configured to transmit an N77 band signal to the N77 band RX module 107.
It should be noted that the N77 band RX module 107 may include a second PA1071 and/or a second filter 1072. The second PA1071 is configured to amplify an N77 band signal; a second filter 1072, configured to filter the N77 band signal.
In this embodiment, when the switch is switched to the fourth port 1094, the transmission of the N77 band signal may be supported without using a combiner, that is, the N77 band signal may be transmitted to the N77 band RX module 107.
Optionally, the fifth port 1095 is connected to the N79 band RX module 108; a fifth port 1095 is configured to transmit an N79 band signal to the N79 band RX module 108.
It should be noted that the N79 band RX module 108 may include a third PA1081 and/or a third filter 1082. The third PA1081 is configured to amplify an N79-band signal; and a third filter 1082 for filtering the N79 band signal.
In this embodiment, when the switch is switched to the fifth port 1095, the transmission of the N79 frequency band signal may be supported without using a combiner, that is, the N79 frequency band signal may be transmitted to the N79 frequency band RX module 108.
Optionally, the third port 1093 is further configured to transmit a low-band LB signal.
For example, the LB signal may have a frequency band ranging from 663MHz to 915MHz. In this embodiment, the third port 1093 may be used to transmit not only the mid-high band MHB signal but also the low band LB signal.
Optionally, the third port 1093 is connected to the LB RX module 301; the third port 1093 is also configured to transmit LB signals to the LB RX module 301.
Note that the LB RX module 301 may include a fourth PA3011 and/or a fourth filter 3012. A fourth PA3011 for amplifying the LB signal; and a fourth filter 3012 for filtering the LB signal.
In this embodiment, when the switch is switched to the third port 1093, the transmission of the LB signal may be supported without using a combiner, and the LB signal may be transmitted to the LB RX module 301. Meanwhile, the insertion loss of the path where the LB signal is located can be reduced, so that the sensitivity of the path where the LB signal is located when receiving the LB signal is improved.
As shown in fig. 5, which is a schematic diagram of another embodiment of a switch according to an embodiment of the present invention, the switch may include: a first port 1091, a second port 1092, a third port 1093, a fourth port 1094, and a fifth port 1095; the switch may further include: a sixth port 1096 and a seventh port 1097;
a first port 1091 for receiving and transmitting a first full band signal;
a second port 1092 for receiving and transmitting a second full band signal;
a third port 1093 for transmitting mid-high band MHB signals;
a fourth port 1094 configured to transmit an N77 band signal;
a fifth port 1095 configured to transmit an N79 band signal;
a sixth port 1096, configured to receive and transmit an N77 band signal and/or an N79 band signal;
a seventh port 1097, configured to receive and transmit signals in a specific frequency band;
wherein the first full band signal and the second full band signal comprise the MHB signal, the N77 band signal, the N79 band signal, and the specific band signal.
It should be noted that the first port 1091 and the second port 1092 may be one port. In this embodiment, the explanation of the first port 1091, the second port 1092, the third port 1093, the fourth port 1094 and the fifth port 1095 is similar to that of the first port 1091, the second port 1092, the third port 1093, the fourth port 1094 and the fifth port 1095 of the switch shown in fig. 4, and will not be repeated here.
It will be appreciated that the switch in this embodiment is a DP4T switch, and a port is added to the switch to change the switch into a DP5T switch, and the operating range of the DP5T switch is larger than that of the DP4T switch. The operating range of the DP5T switch may be 617MHz-5925MHz, for example.
The connection between the first port 1091 and the sixth port 1096 or the seventh port 1097 is performed inside the switch 109, or the connection between the second port 1092 and the sixth port 1096 or the seventh port 1097 is performed inside the switch 109 by switching.
Optionally, the sixth port 1096 is connected to the N77 band PA module 110; a sixth port 1096 is configured to transmit an N77 band signal to the N77 band PA module 110.
Note that the N77 band PA module 110 may include a fifth PA1101. The fifth PA1101 is configured to amplify an N77 band signal.
Optionally, the sixth port 1096 is connected to the N79 band PA module 111; a sixth port 1096 is configured to send and receive an N79 frequency band signal to the N79 frequency band PA module 111.
Note that the N79-band PA module 111 may include a sixth PA1111. The sixth PA1111 is configured to amplify an N79 frequency band signal.
In this embodiment, when the switch is switched to the sixth port 1096, the transmission of the N77 band signal may be supported without using a combiner, that is, the N77 band signal transmitted by the N77 band PA module 110 may be received, or the N77 band signal may be transmitted to the N77 band PA module 110; and/or support the transmission of the N79-band signal, i.e., may receive the N79-band signal transmitted by the N79-band PA module 111, or may transmit the N79-band signal to the N79-band PA module 111.
Optionally, the seventh port 1097 is connected to the specific band PA module 105; a seventh port 1097 is configured to transmit and receive a band-specific signal to the band-specific PA module 105.
It should be noted that the specific band PA module 105 may include a seventh PA1051. And a seventh PA1051 for amplifying the specific frequency band signal.
In this embodiment, when the switch is switched to the seventh port 1097, the transmission of the specific frequency band signal may be supported without using a combiner, that is, the specific frequency band signal transmitted by the specific frequency band PA module 105 may be received, and the specific frequency band signal may also be transmitted to the specific frequency band PA module 105.
Optionally, in the case where the switch 109 is set to transmit the MHB signal, the first port 1091 or the second port 1092 is used to receive the MHB signal; a third port 1093 for transmitting the MHB signal.
In this embodiment, the switch may support transmission of the MHB signal without using a combiner, so as to improve sensitivity of a path where the MHB signal is located in receiving the MHB signal.
Optionally, in the case that the switch 109 is configured to transmit an N77 band signal, the first port 1091, the second port 1092, or the sixth port 1096 is configured to receive the N77 band signal; and a fourth port 1094 for transmitting the N77 band signal.
Optionally, in the case where the switch 109 is configured to transmit the N77 band signal, the first port 1091, the second port 1092, or the sixth port 1096 may be configured to receive the N77 band signal, which may include, but is not limited to, the following implementations:
implementation 1: a first port 1091 configured to receive an N77 band signal; a second port 1092 or a sixth port 1096 for transmitting the N77 band signal.
Implementation 2: a second port 1092 configured to receive an N77 band signal; a first port 1091 or a sixth port 1096 for transmitting the N77 band signal.
Implementation 3: a sixth port 1096 configured to receive an N77 band signal; a first port 1091 or a second port 1092 for transmitting the N77 band signal.
Implementation 4: when the first port 1091 and the second port 1092 are the same port, the port is configured to receive an N77 band signal; a sixth port 1096 is configured to transmit the N77 band signal.
Optionally, in the case where the switch 109 is configured to transmit the N77 band signal, the first port 1091, the second port 1092, or the sixth port 1096 may be configured to transmit the N77 band signal, which may include, but is not limited to, the following implementations:
implementation 1: a first port 1091 configured to transmit an N77 band signal; a second port 1092 or a sixth port 1096 for receiving the N77 band signal.
Implementation 2: a second port 1092 configured to transmit an N77 band signal; a first port 1091 or a sixth port 1096 for receiving the N77 band signal.
Implementation 3: a sixth port 1096 configured to transmit an N77 band signal; a first port 1091 or a second port 1092 for receiving the N77 band signal.
Implementation 4: a sixth port 1096 configured to receive an N77 band signal; when the first port 1091 and the second port 1092 are the same port, the ports are used for transmitting the N77 band signal.
In this embodiment, the switch may support transmission of the N77 band signal without using a combiner, so as to improve sensitivity of a path where the N77 band signal is located in receiving and transmitting the N77 band signal.
Optionally, in the case that the switch 109 is configured to transmit an N79 frequency band signal, the first port 1091, the second port 1092, or the sixth port 1096 is configured to receive the N79 frequency band signal; and a fifth port 1095 for transmitting the N79 band signal.
Optionally, in the case where the switch 109 is configured to transmit the N79 frequency band signal, the first port 1091, the second port 1092, or the sixth port 1096 may be configured to receive the N79 frequency band signal, which may include, but is not limited to, the following implementations:
implementation 1: a first port 1091 configured to receive an N79 frequency band signal; a second port 1092 or a sixth port 1096 for transmitting the N79 band signal.
Implementation 2: a second port 1092 configured to receive an N79 frequency band signal; a first port 1091 or a sixth port 1096 for transmitting the N79 band signal.
Implementation 3: a sixth port 1096 configured to receive an N79 band signal; a first port 1091 or a second port 1092 for transmitting the N79 band signal.
Implementation 4: a sixth port 1096 configured to receive an N79 band signal; when the first port 1091 and the second port 1092 are the same port, the port is used to transmit the N79 band signal.
Optionally, in the case where the switch 109 is configured to transmit an N79 frequency band signal, the first port 1091, the second port 1092, or the sixth port 1096 may be configured to transmit an N79 frequency band signal, which may include, but is not limited to, the following implementations:
implementation 1: a first port 1091 configured to transmit an N79 frequency band signal; a second port 1092 or a sixth port 1096 for receiving the N79 band signal.
Implementation 2: a second port 1092 configured to transmit an N79 frequency band signal; a first port 1091 or a sixth port 1096 for receiving the N79 band signal.
Implementation 3: a sixth port 1096 configured to transmit an N79 band signal; a first port 1091 or a second port 1092 for receiving the N79 band signal.
Implementation 4: when the first port 1091 and the second port 1092 are the same port, the port is configured to receive an N79 frequency band signal; and a sixth port 1096 configured to transmit the N79 band signal.
In this embodiment, the switch may support transmission of the N79 frequency band signal without using a combiner, so as to improve sensitivity of a path where the N79 frequency band signal is located in receiving and transmitting the N79 frequency band signal.
Optionally, in the case where the switch 109 is configured to transmit a specific frequency band signal, the first port 1091, the second port 1092, or the seventh port 1097 may be configured to receive a specific frequency band signal, which may include, but is not limited to, the following implementations:
Implementation 1: a first port 1091 configured to receive a specific frequency band signal; a second port 1092 or a seventh port 1097 for transmitting the particular frequency band signal.
Implementation 2: a second port 1092 for receiving signals in a specific frequency band; a first port 1091 or a seventh port 1097 for transmitting the particular frequency band signal.
Implementation 3: a seventh port 1097 configured to receive a signal in a specific frequency band; a first port 1091 or a second port 1092 for transmitting the particular frequency band signal.
Implementation 4: a seventh port 1097 configured to transmit a specific frequency band signal; when the first port 1091 and the second port 1092 are the same port, the ports are used for receiving the signals in the specific frequency band.
Optionally, in the case where the switch 109 is configured to transmit a specific frequency band signal, the first port 1091, the second port 1092, or the seventh port 1097 may be configured to transmit a specific frequency band signal, which may include, but is not limited to, the following implementations:
implementation 1: a first port 1091 for transmitting a particular frequency band signal; a second port 1092 or a seventh port 1097 for receiving the particular frequency band signal.
Implementation 2: a second port 1092 for transmitting a particular frequency band signal; a first port 1091 or a seventh port 1097 for receiving the particular frequency band signal.
Implementation 3: a seventh port 1097 configured to transmit a specific frequency band signal; a first port 1091 or a second port 1092 for receiving the particular frequency band signal.
Implementation 4: when the first port 1091 and the second port 1092 are the same port, the ports are used for transmitting signals in a specific frequency band; a seventh port 1097 for receiving the particular frequency band signal.
In this embodiment, the switch may support transmission of the specific frequency band signal without using a combiner, so as to improve sensitivity of a path where the specific frequency band signal is located in receiving and transmitting the specific frequency band signal.
As shown in fig. 6, which is a schematic diagram of an embodiment of a radio frequency circuit according to an embodiment of the present invention, the radio frequency circuit may include a switch 109 as shown in fig. 4 or fig. 5. The switch 109 as shown in fig. 4 may include: a first port 1091, a second port 1092, a third port 1093, a fourth port 1094, and a fifth port 1095; the switch 109 as shown in fig. 5 may include: a first port 1091, a second port 1092, a third port 1093, a fourth port 1094, a fifth port 1095, a sixth port 1096, and a seventh port 1097.
Fig. 7 is a schematic diagram of another embodiment of a radio frequency circuit according to an embodiment of the present invention. When the rf circuit shown in fig. 7 includes the switch 109 shown in fig. 4, the rf circuit may further include a first antenna 1011, a second antenna 1012, a mid-high frequency receiving module 106, an N77 band receiving module 107, and an N79 band receiving module 108.
Fig. 8 is a schematic diagram of another embodiment of a radio frequency circuit according to an embodiment of the present invention. When the switch 109 shown in fig. 5 is included in the radio frequency circuit shown in fig. 8, the radio frequency circuit may further include a first antenna 1011, a second antenna 1012, a specific band PA module 105, an MHB RX module 106, an N77 band RX module 107, an N79 band RX module 108, an N77 band PA module 110, and an N79 band PA module 111.
Illustratively, when the first port 1091 and the third port 1093 are on inside the switch, the first port 1091 transmits MHB signals to the third port 1093, and the third port 1093 receives the MHB signals and transmits the MHB signals to the MHB RX module 106.
Illustratively, when the second port 1092 and the fourth port 1094 are on inside the switch, the second port 1092 transmits MHB signals to the fourth port 1094, the fourth port 1094 receives the MHB signals, and transmits the MHB signals to the N77 band RX module 107. Wherein the N77 band signal on the sixth port 1096 is unaffected by the other port signals.
As shown in fig. 9, another embodiment of the rf circuit according to the present invention is shown, and the rf circuit may include the switch 109 shown in fig. 4 or fig. 5; the radio frequency circuit may further include: test seat 102. The test socket 102 is configured to detect a fault condition of the rf circuit. The fault condition may be an open circuit or a short circuit.
In this embodiment, compared with the rf circuit in the prior art, the circuit shown in fig. 7 in the embodiment of the present invention does not use the SP2T switch and the combiner, which not only effectively reduces the cost of components in the rf circuit, but also effectively increases the area of the PCB board, and increases the usage space for other components. When the switch is switched to a different port, different frequency band signals can be transmitted, and particularly, the switch can support the transmission of MHB signals without using a combiner. For the path of the MHB signal, when the SP2T switch and the combiner are reduced, the insertion loss of 0.8-1 dB can be reduced, so that the sensitivity of the path of the MHB signal in receiving the MHB signal is improved; for the channel where the N77 frequency band signal is or the channel where the N79 frequency band signal is, the insertion loss of the SP2T switch and the combiner can be reduced by 0.85 dB when the SP2T switch and the combiner are reduced, so that the sensitivity of the channel where the N77 frequency band signal is received is improved, or the sensitivity of the channel where the N79 frequency band signal is received is improved.
As shown in fig. 10, which is a schematic diagram of an embodiment of the terminal device according to the present invention, the terminal device may include the switch 109 shown in fig. 4 or 5.
Fig. 11 is a schematic diagram of another embodiment of a terminal device according to an embodiment of the present invention, where the terminal device may include a radio frequency circuit as shown in any of fig. 6-9.
In this embodiment, when the terminal device includes a switch as shown in fig. 4 or 5, or when the terminal device may include a radio frequency circuit as shown in any one of fig. 6 to 9, the terminal device may support transmission of full-band signals without using a combiner, which not only reduces insertion loss of paths where signals in different frequency bands are located, but also saves use power consumption of the terminal device.
It will be appreciated that the terminal devices involved in embodiments of the present invention may include general hand-held, on-screen electronic terminal devices such as cell phones, smart phones, portable terminals, personal digital assistants (Personal Digital Assistant, PDA), portable multimedia player (Personal Media Player, PMP) devices, notebook computers, notebook (Note Pad), wireless broadband (Wireless Broadband, wibro) terminals, tablet computers (Personal Computer, PC), smart PCs, point of sale (POS), and car computers, among others.
The terminal device may also comprise a wearable device. The wearable device may be worn directly on the user or be a portable electronic device integrated into the user's clothing or accessories. The wearable device is not only a hardware device, but also can realize powerful intelligent functions through software support and data interaction and cloud interaction, such as: the mobile phone terminal has the advantages of calculating function, positioning function and alarming function, and can be connected with mobile phones and various terminals. Wearable devices may include, but are not limited to, wrist-supported watch types (e.g., watches, wrist products, etc.), foot-supported shoes (e.g., shoes, socks, or other leg wear products), head-supported Glass types (e.g., glasses, helmets, headbands, etc.), and smart apparel, school bags, crutches, accessories, etc. in various non-mainstream product forms.
As shown in fig. 12, an embodiment of a method for connecting a switch in an embodiment of the present invention is shown, where the method embodiment is applied to a radio frequency circuit, and the radio frequency circuit may include a switch as shown in fig. 4, and the switch may include: a first port, a second port, a third port, a fourth port, and a fifth port; the method embodiment can comprise the following steps:
1201. receiving and transmitting a first full-frequency band signal through a first port;
1202. receiving and transmitting a second full-frequency band signal through a second port;
1203. transmitting a middle-high band MHB signal through a third port;
1204. transmitting an N77 frequency band signal through a fourth port;
1205. transmitting an N79 frequency band signal through a fifth port;
wherein the first full band signal and the second full band signal comprise the MHB signal, the N77 band signal and the N79 band signal.
It should be noted that, when the switch is switched to the third port, that is, when the first port or the second port is connected to the third port, the switch may receive the MHB signal through the first port or the second port and transmit the MHB signal to the third port, and the third port receives the MHB signal and transmits the MHB signal to the MHB RX module connected to the third port.
Wherein the first port and the second port may be one port.
It should be noted that, when the switch is switched to the fourth port, that is, when the first port or the second port is connected to the fourth port, the switch may receive the N77 band signal through the first port or the second port and transmit the N77 band signal to the fourth port, and the fourth port receives the N77 band signal and transmits the N77 band signal to the N77 band RX module connected to the fourth port.
It should be noted that, when the switch is switched to the fifth port, that is, when the first port or the second port is connected to the fifth port, the switch may receive the N79 frequency band signal through the first port or the second port and transmit the N79 frequency band signal to the fifth port, and the fifth port receives the N79 frequency band signal and transmits the N79 frequency band signal to the N79 frequency band RX module connected to the fifth port.
In this embodiment, when the switch is switched to the third port, the switch can support transmission of MHB signals without using a combiner; when the switch is switched to the fourth port, the switch can support the transmission of the N77 frequency band signal under the condition of not using a combiner; when the switch is switched to the fifth port, the switch can support the transmission of the N79 frequency band signal without using a combiner. Therefore, when the switch transmits signals in different frequency bands, the insertion loss of the channel where the signals in different frequency bands are located can be reduced, and the sensitivity of the channel where the signals in different frequency bands are located when the signals are received is improved.
As shown in fig. 13, another embodiment of a method for connecting a switch in an embodiment of the present invention is shown, where the method embodiment is applied to a radio frequency circuit, and the radio frequency circuit may include a switch as shown in fig. 5, and the switch may include: a first port, a second port, a third port, a fourth port, and a fifth port, a sixth port, and a seventh port; the method embodiment can comprise the following steps:
1301. receiving and transmitting a first full-frequency band signal through a first port;
1302. receiving and transmitting a second full-frequency band signal through a second port;
1303. transmitting a middle-high band MHB signal through a third port;
1304. transmitting an N77 frequency band signal through a fourth port;
1305. transmitting an N79 frequency band signal through a fifth port;
1306. receiving and transmitting an N77 frequency band signal and/or an N79 frequency band signal through a sixth port;
1307. receiving and transmitting a signal of a specific frequency band through a seventh port;
wherein the first full band signal and the second full band signal comprise the MHB signal, the N77 band signal, the N79 band signal, and the specific band signal.
It should be noted that, steps 1301-1305 in this embodiment are similar to steps 1201-1205 in fig. 12, and detailed descriptions thereof are omitted herein.
It should be noted that, when the switch is switched to the sixth port, that is, when the first port or the second port is connected to the sixth port, the switch may receive the N77 band signal through the first port or the second port and transmit the N77 band signal to the sixth port, and the sixth port receives the N77 band signal and transmits the N77 band signal to the N77 band RX module connected to the sixth port. Or when the first port or the second port is connected with the sixth port, the sixth port receives the N77 frequency band signal and transmits the N77 frequency band signal to the first port or the second port, and the first port or the second port receives the N77 frequency band signal and transmits the N77 frequency band signal to an antenna connected with the first port or the second port.
It should be noted that, when the switch is switched to the sixth port, that is, when the first port or the second port is connected to the sixth port, the switch may receive the N79 frequency band signal through the first port or the second port and transmit the N79 frequency band signal to the sixth port, and the sixth port receives the N79 frequency band signal and transmits the N79 frequency band signal to the N79 frequency band RX module connected to the sixth port. Or when the first port or the second port is connected with the sixth port, the sixth port receives the N79 frequency band signal and transmits the N79 frequency band signal to the first port or the second port, and the first port or the second port receives the N79 frequency band signal and transmits the N79 frequency band signal to an antenna connected with the first port or the second port.
It should be noted that, when the switch is switched to the seventh port, that is, when the first port or the second port is connected to the seventh port, the switch may receive the specific frequency band signal through the first port or the second port and transmit the specific frequency band signal to the seventh port, and the seventh port receives the specific frequency band signal and transmits the specific frequency band signal to the specific frequency band RX module connected to the seventh port. Or when the first port or the second port is connected with the seventh port, the seventh port receives the specific frequency band signal and transmits the specific frequency band signal to the first port or the second port, and the first port or the second port receives the specific frequency band signal and transmits the specific frequency band signal to an antenna connected with the first port or the second port.
In this embodiment, the switch may support transmission of MHB signals, N77 band signals, and N79 band signals without using a combiner. The switch can also support the transmission of the N77 frequency band signal and/or the N79 frequency band signal without using a combiner when the switch is switched to the sixth port; the switch may also support transmission of signals of a specific frequency band without using a combiner when the switch is switched to the seventh port. Therefore, when the switch transmits signals in different frequency bands, the insertion loss of the channel where the signals in different frequency bands are located can be reduced, and the sensitivity of the channel where the signals in different frequency bands are located when the signals are received is improved.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.
The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A switch, comprising: the first port, the second port, the third port, the fourth port and the fifth port, wherein the third port is connected with the middle-high frequency band MHB receiving RX module;
the first port is used for receiving and transmitting a first full-frequency band signal;
the second port is used for receiving and transmitting a second full-frequency band signal;
the third port is configured to transmit a middle-high band MHB signal to the middle-high band MHB receiving RX module;
the fourth port is used for transmitting an N77 frequency band signal;
the fifth port is configured to transmit an N79 frequency band signal;
wherein the first full-band signal and the second full-band signal include the MHB signal, the N77 band signal, and the N79 band signal.
2. A switch as claimed in claim 1, wherein,
the third port is further configured to transmit a low-band LB signal.
3. The switch of claim 2, further comprising: a sixth port and a seventh port;
the sixth port is configured to receive and transmit an N77 frequency band signal, and/or an N79 frequency band signal;
the seventh port is configured to receive and transmit a specific frequency band signal, where the specific frequency band signal includes at least one of an N1 frequency band signal, an N3 frequency band signal, an N38 frequency band signal, an N40 frequency band signal, and an N41 frequency band signal.
4. A switch according to claim 3, wherein,
the first port or the second port being configured to receive the MHB signal if the switch is configured to transmit the MHB signal; the third port is used for transmitting the MHB signal;
the first port, the second port, or the sixth port is configured to receive the N77 band signal when the switch is configured to transmit the N77 band signal; the fourth port is configured to transmit the N77 band signal;
the first port, the second port, or the sixth port is configured to receive the N79 frequency band signal when the switch is configured to transmit the N79 frequency band signal; and the fifth port is used for transmitting the N79 frequency band signal.
5. The switch of claim 1, wherein the first port is connected to a first antenna and the second port is connected to a second antenna, the first port and the second port being the same port, the first antenna and the second antenna being the same antenna.
6. A radio frequency circuit comprising a switch as claimed in any one of claims 1 to 5, and further comprising a mid-high band MHB receive RX module for receiving mid-high band MHB signals.
7. The radio frequency circuit of claim 6, wherein the radio frequency circuit comprises,
the middle-high band MHB receiving RX module is also used for amplifying and/or filtering the MHB signals.
8. Terminal device, characterized by comprising a switch according to any of claims 1-5, or a radio frequency circuit according to any of claims 6-7.
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| CN202011598515.8A CN112751584B (en) | 2020-12-29 | 2020-12-29 | Switch, radio frequency circuit and terminal equipment |
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