US-20260128759-A1 - Terminal Device and Control Method

US20260128759A1US 20260128759 A1US20260128759 A1US 20260128759A1US-20260128759-A1

Abstract

A terminal device and a control method. The terminal device includes a power amplifier, a first circuit, a second circuit, a first antenna, a second antenna, a first frequency division switch, and a second frequency division switch; the first circuit includes N duplexers, and the second circuit includes M duplexers; the first frequency division switch includes N first output terminals, and the second frequency division switch includes M output terminals; the first antenna is connected to the first circuit, and the second antenna is connected to the second circuit; and the power amplifier is configured to access the first circuit to support the first antenna to send a signal, or access the second circuit to support the second antenna to send a signal.

Inventors

XINLI ZHANG
Zheng Li

Assignees

HONOR DEVICE CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20231025
Priority Date: 20221227

Claims (20)

1 . A terminal device, comprising: a first circuit comprising N duplexers; a second circuit comprising M duplexers; a first frequency division switch comprising N first output terminals, wherein first terminals of the N duplexers are respectively connected to the N first output terminals of the first frequency division switch; a second frequency division switch comprising M output terminals, wherein first terminals of the M duplexers are respectively connected to the M output terminals of the second frequency division switch, and wherein both N and M are natural numbers; a first antenna connected to the first circuit; a second antenna connected to the second circuit; and a power amplifier configured to access the first circuit to support the first antenna to send a signal, or access the second circuit to support the second antenna to send a signal.
2 . The terminal device of claim 1 , further comprising a first connecting line, wherein the second circuit is disposed at a location less than a preset distance from the second antenna, wherein the first frequency division switch further comprises a second output terminal, and wherein the power amplifier is connected to an input terminal of the first frequency division switch, the second output terminal is connected to one end of the first connecting line, and another end of the first connecting line is connected to an input terminal of the second frequency division switch.
3 . The terminal device of claim 2 , further comprising a second connecting line, wherein the first circuit further comprises: a first low noise amplifier; a third frequency division switch comprising Q+N input terminals, wherein the first low noise amplifier is connected to an output terminal of the third frequency division switch, and wherein second terminals of the N duplexers are respectively connected to the N input terminals of the third frequency division switch; a fourth frequency division switch comprising Q+N input terminals, wherein third terminals of the N duplexers are respectively connected to the N input terminals of the fourth frequency division switch, and wherein an output terminal of the fourth frequency division switch is connected to one end of the second connecting line, and the other end of the second connecting line is connected to the first antenna; and Q filters, wherein one terminal of each of the Q filters is respectively connected to the Q input terminals of the third frequency division switch, and wherein another terminal of each of the Q filters is respectively connected to the Q input terminals of the fourth frequency division switch, and wherein the second circuit further comprises: a second low noise amplifier; a fifth frequency division switch comprising L+M input terminals, wherein the second low noise amplifier is connected to an output terminal of the fifth frequency division switch, and wherein second terminals of the M duplexers are respectively connected to the M input terminals of the fifth frequency division switch; a sixth frequency division switch comprising L+M input terminals, wherein third terminals of the M duplexers are respectively connected to the M input terminals of the sixth frequency division switch, and wherein an output terminal of the sixth frequency division switch is connected to the second antenna; and L filters, wherein both Q and L are natural numbers, wherein one terminal of each of the L filters is respectively connected to the L input terminals of the fifth frequency division switch, and wherein another terminal of each of the L filters is respectively connected to the L input terminals of the sixth frequency division switch.
4 . The terminal device of claim 1 , further comprising a controller, wherein when a) a downlink reference signal received power of the first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, the controller is configured to control the power amplifier to access the first circuit by using any first output terminal of the first frequency division switch, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of the second antenna.
5 . The terminal device of claim 1 , further comprising a third connecting line and a fourth connecting line, wherein the first circuit is disposed at a location less than a preset distance from the first antenna, and the second circuit is disposed at a location less than a preset distance from the second antenna, and wherein one end of the third connecting line is connected to the power amplifier, another end of the third connecting line is connected to an input terminal of the first frequency division switch, one end of the fourth connecting line is connected to the power amplifier, and another end of the fourth connecting line is connected to an input terminal of the second frequency division switch.
6 . The terminal device of claim 5 , further comprising a selection switch, wherein the power amplifier is connected to a first terminal of the selection switch, a second terminal of the selection switch is connected to one end of the third connecting line, and a third terminal of the selection switch is connected to one end of the fourth connecting line.
7 . The terminal device of claim 5 , wherein the first circuit further comprises: a third low noise amplifier; a seventh frequency division switch comprising S+N input terminals, wherein the third low noise amplifier is connected to an output terminal of the seventh frequency division switch, and wherein second terminals of the N duplexers are respectively connected to the N input terminals of the seventh frequency division switch; an eighth frequency division switch comprising S+N input terminals, wherein third terminals of the N duplexers are respectively connected to the N input terminals of the eighth frequency division switch, and wherein an output terminal of the eighth frequency division switch is connected to the first antenna; and S filters, wherein one terminal of each of the S filters is respectively connected to the S input terminals of the seventh frequency division switch, and wherein another terminal of each of the S filters is respectively connected to the S input terminals of the eighth frequency division switch, and wherein the second circuit further comprises: a fourth low noise amplifier; a ninth frequency division switch comprising Z+M input terminals, wherein the fourth low noise amplifier is connected to an output terminal of the ninth frequency division switch, and wherein second terminals of the M duplexers are respectively connected to the M input terminals of the ninth frequency division switch; a tenth frequency division switch comprising Z+M input terminals, wherein third terminals of the M duplexers are respectively connected to the M input terminals of the tenth frequency division switch, and wherein an output terminal of the tenth frequency division switch is connected to the second antenna; and Z filters, wherein both S and Z are natural numbers, wherein one terminal of each of the Z filters is respectively connected to the Z input terminals of the ninth frequency division switch, and wherein another terminal of each of the Z filters is respectively connected to the Z input terminals of the tenth frequency division switch.
8 . The terminal device of claim 6 , further comprising a controller, wherein when a) a downlink reference signal received power of the first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, the controller is configured to control the second terminal of the selection switch to be in an on state, and control the power amplifier to access the first circuit by using the third connecting line and any first output terminal of the first frequency division switch, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of the second antenna.
9 . A method, comprising: controlling, when either a) a downlink reference signal received power of a first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, a power amplifier to access a first circuit by using any first output terminal of a first frequency division switch, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of a second antenna; or controlling, when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the power amplifier to access a second circuit by using any output terminal of a second frequency division switch.
10 . A terminal device, comprising: a fifth connecting line; a sixth connecting line; a first power amplifier; a second power amplifier; a first circuit comprising N duplexers a second circuit comprising M duplexers; a first frequency division switch comprising N output terminals, wherein an output terminal of the first power amplifier is connected to an input terminal of the first frequency division switch, and wherein first terminals of the N duplexers are respectively connected to the N output terminals of the first frequency division switch; a second frequency division switch comprising M output terminals, wherein both N and M are natural numbers, wherein an output terminal of the second power amplifier is connected to an input terminal of the second frequency division switch, and wherein first terminals of the M duplexers are respectively connected to the M output terminals of the second frequency division switch; a radio frequency chip, comprising: a first terminal that is connected to one end of the fifth connecting line, wherein another end of the fifth connecting line is connected to an input terminal of the first power amplifier, and; a second terminal that is connected to one end of the sixth connecting line, wherein another end of the sixth connecting line is connected to an input terminal of the second power amplifier; a first antenna that is connected to the first circuit; and a second antenna that is connected to the second circuit, wherein the first power amplifier is configured to access the first circuit to support the first antenna to send a signal, and wherein the second power amplifier is configured to access the second circuit to support the second antenna to send a signal.
11 . The terminal device of claim 10 , wherein the first circuit is disposed at a location less than a preset distance from the first antenna, wherein the second circuit is disposed at a location less than the preset distance from the second antenna, wherein the first power amplifier is disposed at a location less than the preset distance from the first circuit, and wherein the second power amplifier is disposed at a location less than the preset distance from the second circuit.
12 . The terminal device of claim 11 , wherein the first circuit further comprises: a fifth low noise amplifier; an eleventh frequency division switch comprising N+R input terminals, wherein the fifth low noise amplifier is connected to an output terminal of the eleventh frequency division switch, and wherein second terminals of the N duplexers are respectively connected to the N input terminals of the eleventh frequency division switch; a twelfth frequency division switch comprising N+R input terminals, wherein third terminals of the N duplexers are respectively connected to the N input terminals of the twelfth frequency division switch, and wherein an output terminal of the twelfth frequency division switch is connected to the first antenna; and R filters, wherein one terminal of each of the R filters is respectively connected to the R input terminals of the eleventh frequency division switch, and wherein another terminal of each of the R filters is respectively connected to the R input terminals of the twelfth frequency division switch, and wherein the second circuit further comprises: a sixth low noise amplifier; a thirteenth frequency division switch comprising M+T input terminals, wherein the sixth low noise amplifier is connected to an output terminal of the thirteenth frequency division switch, and wherein second terminals of the M duplexers are respectively connected to the M input terminals of the thirteenth frequency division switch; a fourteenth frequency division switch comprising M+T input terminals, wherein third terminals of the M duplexers are respectively connected to the M input terminals of the fourteenth frequency division switch, and wherein an output terminal of the fourteenth frequency division switch is connected to the second antenna; and T filters, wherein both R and T are natural numbers, wherein one terminal of each of the T filters is respectively connected to the T input terminals of the thirteenth frequency division switch, and wherein another terminal of each of the T filters is respectively connected to the T input terminals of the fourteenth frequency division switch.
13 . The terminal device of claim 10 , further comprising a controller, wherein when a) a downlink reference signal received power of the first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, the controller is configured to control the first terminal of the radio frequency chip to access a channel in which the first power amplifier is located, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of the second antenna, and wherein when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the controller is further configured to control the second terminal of the radio frequency chip to access a channel in which the second power amplifier is located.
14 - 17 . (canceled)
18 . The terminal device of claim 4 , wherein when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the controller is further configured to control the power amplifier to access the second circuit by using any output terminal of the second frequency division switch.
19 . The terminal device of claim 2 , further comprising a controller, wherein when a) a downlink reference signal received power of the first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, the controller is configured to control the power amplifier to access the first circuit by using any first output terminal of the first frequency division switch, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of the second antenna.
20 . The terminal device according to claim 19 , wherein when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the controller is further configured to control the power amplifier to access the second circuit by using any output terminal of the second frequency division switch.
21 . The terminal device of claim 6 , wherein the first circuit further comprises: a third low noise amplifier; a seventh frequency division switch comprising S+N input terminals, wherein the third low noise amplifier is connected to an output terminal of the seventh frequency division switch, and wherein second terminals of the N duplexers are respectively connected to the N input terminals of the seventh frequency division switch; an eighth frequency division switch comprising S+N input terminals, wherein third terminals of the N duplexers are respectively connected to the N input terminals of the eighth frequency division switch, and wherein an output terminal of the eighth frequency division switch is connected to the first antenna; and S filters, wherein one terminal of each of the S filters is respectively connected to the S input terminals of the seventh frequency division switch, and wherein another terminal of each of the S filters is respectively connected to the S input terminals of the eighth frequency division switch, and wherein the second circuit further comprises: a fourth low noise amplifier; a ninth frequency division switch comprising Z+M input terminals, wherein the fourth low noise amplifier is connected to an output terminal of the ninth frequency division switch, and wherein second terminals of the M duplexers are respectively connected to the M input terminals of the ninth frequency division switch; a tenth frequency division switch comprising Z+M input terminals, wherein third terminals of the M duplexers are respectively connected to the M input terminals of the tenth frequency division switch, and wherein an output terminal of the tenth frequency division switch is connected to the second antenna; and Z filters, wherein both S and Z are natural numbers, wherein one terminal of each of the Z filters is respectively connected to the Z input terminals of the ninth frequency division switch, and wherein another terminal of each of the Z filters is respectively connected to the Z input terminals of the tenth frequency division switch.
22 . The terminal device of claim 8 , wherein when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the controller is further configured to control the third terminal of the selection switch to be in an on state, and control the power amplifier to access the second circuit by using the fourth connecting line and any output terminal of the second frequency division switch.
23 . The terminal device of claim 7 , further comprising: a selection switch, wherein the power amplifier is connected to a first terminal of the selection switch, a second terminal of the selection switch is connected to one end of the third connecting line, and a third terminal of the selection switch is connected to one end of the fourth connecting line; and a controller, wherein when a) a downlink reference signal received power of the first antenna is greater than or equal to a first preset value, or b) when the downlink reference signal received power of the first antenna is less than the first preset value, and a first value is less than or equal to a second preset value, the controller is configured to control the second terminal of the selection switch to be in an on state, and control the power amplifier to access the first circuit by using the third connecting line and any first output terminal of the first frequency division switch, wherein the first value is a difference between the downlink reference signal received power of the first antenna and a downlink reference signal received power of the second antenna, and wherein when the downlink reference signal received power of the first antenna is less than the first preset value, and the first value is greater than the second preset value, the controller is further configured to control the third terminal of the selection switch to be in an on state, and control the power amplifier to access the second circuit by using the fourth connecting line and any output terminal of the second frequency division switch.

Description

This application claims priority to the Chinese Patent Application No. 202211686172.X, filed with China National Intellectual Property Administration on Dec. 27, 2022, and entitled “TERMINAL DEVICE AND CONTROL METHOD”, which is incorporated herein by reference in its entirety. TECHNICAL FIELD This application relates to the field of terminal technologies, and in particular, to a terminal device and a control method. BACKGROUND With development of terminal technologies, a radio frequency front-end circuit and an antenna are usually disposed in a terminal device, and the terminal device may implement communication by using the radio frequency front-end circuit and the antenna. In some implementations, the antenna may include a primary antenna and a diversity antenna, and the radio frequency front-end circuit may include a transmit circuit, a primary receive circuit, a diversity receive circuit, and an antenna switching switch. The transmit circuit and the primary receive circuit may be combined into a transceiver circuit, and the transceiver circuit may be connected to the primary antenna, so that a signal received by the primary antenna is transmitted to the primary receive circuit in the transceiver circuit by using the antenna switching switch. The diversity receive circuit may be connected to the diversity antenna, so that a signal received by the diversity antenna is transmitted to the diversity receive circuit by using the antenna switching switch. A transmit signal may be transmitted to the primary antenna by using the transmit circuit in the transceiver circuit and the antenna switching switch for transmission, or transmitted to the diversity antenna by using the transmit circuit in the transceiver circuit and the antenna switching switch for transmission. However, in the foregoing implementation, when the terminal device receives and sends signals, relatively large losses may be generated, which affects signal transmission efficiency. SUMMARY Embodiments of this application provide a terminal device and a control method, to reduce signal transmission losses and improve signal transmission efficiency. According to a first aspect, an embodiment of this application provides a terminal device. The terminal device includes a power amplifier, a first circuit, a second circuit, a first antenna, a second antenna, a first frequency division switch, and a second frequency division switch; the first circuit includes N duplexers, and the second circuit includes M duplexers; the first frequency division switch includes N first output terminals, and the second frequency division switch includes M output terminals; both N and M are natural numbers; first terminals of the N duplexers are respectively connected to the N first output terminals of the first frequency division switch, and first terminals of the M duplexers are respectively connected to the M output terminals of the second frequency division switch; the first antenna is connected to the first circuit, and the second antenna is connected to the second circuit; and the power amplifier is configured to access the first circuit to support the first antenna to send a signal, or access the second circuit to support the second antenna to send a signal. In this way, both the first circuit and the second circuit of the terminal device include a plurality of duplexers, so that both the first circuit and the second circuit can support signal sending and receiving. In addition, by multiplexing the power amplifier, when the terminal device sends a signal, the power amplifier may access the first circuit or the second circuit. In this way, there is no need to dispose an antenna switching switch after the first circuit and the second circuit, so that when a signal is transmitted between the first antenna and the first circuit, and when a signal is transmitted between the second antenna and the second circuit, the signal does not need to pass through the switching switch, which can reduce losses in a signal transmission process and improve signal transmission efficiency. In a possible implementation, the second circuit is disposed at a location less than a preset distance from the second antenna; the terminal device further includes a first connecting line; the first frequency division switch further includes a second output terminal; the power amplifier is connected to an input terminal of the first frequency division switch, the second output terminal is connected to one end of the first connecting line, and the other end of the first connecting line is connected to an input terminal of the second frequency division switch. In this way, a distance between the second circuit and the second antenna is shortened, and losses of a signal during transmission between the second circuit and the second antenna can be reduced. In addition, the power amplifier may access the second circuit by using the first frequency division switch, the first connecting line, and the second fr