Patent Description:
The present disclosure relates to the field of communication technologies, and in particular, to a signal transceiving apparatus and a terminal device.

With the development of economy and technologies and the continuous advancement of science and technologies, users have more and more requirements for mobile communication technologies. For example, users require for high reliability and a low latency to meet applications requirements of Internet of Vehicles, autonomous driving, telemedicine, and the like; users require for a higher communication rate to support an application requirement of ultra-high-definition videos; users require for low power consumption, large-connection scenarios, high traffic density, and the like to meet the requirements for widespread coverage of the Internet of Things and hotspot communication in smart industry and agriculture, and the like. To meet these requirements, the fifth-generation (<NUM> for short) mobile communication technology appears. <NUM> introduces a new broadband spectrum, for example, a millimeter wave band and a band below <NUM> (sub <NUM> for short) meet broadband high-speed and low-latency coverage requirements, where sub <NUM> is divided into bands of <NUM> (<NUM> to <NUM>) and <NUM> (<NUM> to <NUM>). At the same time, a large-scale antenna technology, multiple access, beamforming, high-power terminal, and other technologies are further used to meet the above needs. At present, the <NUM> spectrum is planned as follows:.

It may be seen from the above list that the newly added sub <NUM> bands of <NUM>, that is, the n77, n78, and n79 bands all use time division duplexing (Time Division Duplexing, TDD) mode. Therefore, the proportion of TDD in <NUM> will increase, and more attention will be paid to the application of TDD. In addition, n1, n2, n3, n5, n7, n8, n38, n41, and other bands are all refarming (spectrum redeployment) bands of long term evolution (Long Term Evolution, LTE). Therefore, <NUM> and <NUM> will coexist for a long time. The terminal products tend to be lightweight and portable. The long-term coexistence of <NUM> and <NUM> will increase the printed circuit board (Printed Circuit Board, PCB) area and product weight of a terminal product. Therefore, decreasing the size and the weight of a terminal product is a major challenge at present. Because of the long-term coexistence of <NUM> and <NUM>, the large-scale access of <NUM>, and a high-power terminal technology, there are cases of transmitting by using one link and receiving by using four links (1T4R for short) and transmitting by using two links and receiving by using four links (2T4R for short). Therefore, the design of a radio frequency link becomes complicated. The realization of compatibility between multiple scenarios in a radio frequency architecture makes the design of a radio frequency link simple and convenient.

At present, the compatible solution of 1T4R and 2T4R has a complex design architecture, use immature materials such as 3P3T (the larger the number of T, the worse the performance), and the wire is long, which affects the overall transmitting and receiving performance. Performance of 3P3T or 4P4T is worse than that of double-pole-double-throw (double-pole-double-throw, DPDT) switch, resulting in a large overall loss on a receiving channel. In addition, due to the price effect of new materials, the costs are much higher than those of the DPDT. In addition, in the current design solution, there is a port that is not used, which is very wasteful and occupies a larger PCB area. This increases the complexity of the design and the costs of the terminal product.

D1 (<CIT>) discloses that a first transceiver unit includes a first radio frequency transceiver working on a first frequency band and a first modem, and the first radio frequency transceiver is connected to the first modem and a switching unit. A second transceiver unit includes a second radio frequency transceiver working on a second frequency band and a second modem, and the second radio frequency transceiver is connected to the second modem and the switching unit. The first modem may modulate and demodulate the uplink signal of the first frequency band to provide the waveform and data required by the uplink signal of the first frequency band, and the first radio frequency transceiver may perform up-down conversion and driving method on the uplink signal of the first frequency band, so as to realize that the first transceiver unit transmits the uplink signal on the first frequency band. Similarly, the second modem may modulate and demodulate the uplink signal of the second frequency band to provide the waveform and data required by the uplink signal of the second frequency band, and the second radio frequency transceiver can perform up-conversion and driving method on the uplink signal of the second frequency band, so as to realize that the first transceiver unit transmits the uplink signal on the second frequency band.

Document <CIT> discloses multipath selection switches for a mobile terminal.

The embodiments of the present disclosure provide a signal transceiving apparatus and a terminal device to solve the problem that a radio frequency transceiving system has a complex structure and a long wire, which affects transmitting and receiving performance, and causes high complexity of design and high costs of terminal products in the related technology.

To resolve the foregoing problems, the embodiments of the present disclosure are implemented as follows:.

According to a first aspect, an embodiment of the present disclosure provides a signal transceiving apparatus which is defined in claim <NUM>.

According to a second aspect, an embodiment of this disclosure provides a terminal device which is defined in claim <NUM>.

To describe the technical solutions of the embodiments of the present disclosure more clearly, the following briefly describes the accompanying drawings required for describing the embodiments of the present disclosure. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure. An embodiment of the present disclosure provides a signal transceiving apparatus. As shown in <FIG>, the apparatus includes:
a first communication module <NUM> and a second communication module <NUM>; a first switch <NUM> connected to a first terminal of the first communication module <NUM> and a first terminal of the second communication module <NUM>, respectively; a second switch <NUM> connected to a second terminal of the first communication module <NUM>, and a first antenna structure <NUM> connected to the second switch <NUM>; and a third switch <NUM> connected to a second terminal of the second communication module <NUM>, and a second antenna structure <NUM> connected to the third switch <NUM>.

The first communication module <NUM> corresponds to a first transmitting link and two receiving links, the second communication module <NUM> corresponds to a second transmitting link and two receiving links; in a case of signal transmission, at least one of the first transmitting link and the second transmitting link is in a conductive state, and in a case of signal reception, the two receiving links corresponding to the first communication module <NUM> and the two receiving links corresponding to the second communication module <NUM> are all in a conductive state.

The signal transceiving apparatus provided in the embodiments of the present disclosure includes: the first communication module <NUM>, the second communication module <NUM>, the first switch <NUM>, the second switch <NUM>, the third switch <NUM>, the first antenna structure <NUM>, and the second antenna structure <NUM>. The first terminal of the first communication module <NUM> and the first terminal of the second communication module <NUM> are both connected to the first switch <NUM>, the second terminal of the first communication module <NUM> is connected to the first antenna structure <NUM> through the second switch <NUM>, and the second terminal of the second communication module <NUM> is connected to the second antenna structure <NUM> through the third switch <NUM>.

The first communication module <NUM> corresponds to a first transmitting link and two receiving links, the second communication module <NUM> corresponds to a second transmitting link and two receiving links; in a case of signal transmission, the first transmitting link of the first communication module <NUM> and/or the second transmitting link of the second communication module <NUM> is conducted, and in a case of signal reception, the two receiving links of the first communication module <NUM> and the two receiving links of the second communication module <NUM> are all conducted.

In a case that the first transmitting link of the first communication module <NUM> or the second transmitting link of the second communication module <NUM> is conducted, and the two receiving links of the first communication module <NUM> and the two receiving links of the second communication module <NUM> are all conducted, the mode of transmitting by using one link and receiving by using four links (1T4R) may be implemented. In a case that the first transmitting link of the first communication module <NUM> and the second transmitting link of the second communication module <NUM> are conducted, and the two receiving links of the first communication module <NUM> and the two receiving links of the second communication module <NUM> are all conducted, the mode of transmitting by using two links and receiving by using four links (2T4R) may be implemented.

The signal transceiving apparatus of the present disclosure can ensure the compatibility between two modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links. In addition, the structural design can reduce insertion loss of the receiving link, improve performance of the transmitting link, shorten a wire length, and reduce the design complexity of the terminal device and reduce manufacturing costs.

As shown in <FIG>, the first switch <NUM>, the second switch <NUM>, and the third switch <NUM> are all double-pole-double-throw switches. The signal transceiving apparatus further includes: a modem <NUM>. A first terminal of the first switch <NUM> is connected to a first port and a second port of the modem <NUM>, and a second terminal of the first switch <NUM> is connected to a first transmitting port <NUM> of the first communication module <NUM> and a second transmitting port <NUM> of the second communication module <NUM>.

The first switch <NUM> is a double-pole-double-throw switch, the first switch <NUM> may be connected to the first communication module <NUM> and the second communication module <NUM>, and the first terminal of the first switch <NUM> is connected to the modem <NUM>, and specifically connected to the first port and the second port of the modem <NUM>. Herein, the first port and the second port are both transmitting ports. The first communication module <NUM> includes the first transmitting port <NUM>, the second communication module <NUM> includes the second transmitting port <NUM>. The first transmitting port <NUM> is located at the first terminal of the first communication module <NUM>, the second transmitting port <NUM> is located at the first terminal of the second communication module <NUM>. The second terminal of the first switch <NUM> is connected to the first transmitting port <NUM> of the first communication module <NUM> and the second transmitting port <NUM> of the second communication module <NUM>.

The first transmitting port <NUM> may be connected to the first non-movable terminal of the first switch <NUM>, the second transmitting port <NUM> is connected to the second non-movable terminal of the first switch <NUM>, the first movable terminal of the first switch <NUM> is connected to the first port of the modem <NUM>, and the second movable terminal of the first switch <NUM> is connected to the second port of the modem <NUM>. The first movable terminal of the first switch <NUM> may be connected to the first non-movable terminal, and the second movable terminal may be connected to the second non-movable terminal, so that the first transmitting port <NUM> is connected to the first port of the modem <NUM>, and the second transmitting port <NUM> is connected to the second port of the modem <NUM>. The first movable terminal of the first switch <NUM> may be connected to the second non-movable terminal, and the second movable terminal may be connected to the first non-movable terminal, so that the first transmitting port <NUM> is connected to the second port of the modem <NUM>, and the second transmitting port <NUM> is connected to the first port of the modem <NUM>.

The modem <NUM> may be connected to a baseband processor. In a case of signal transmission, the modem <NUM> converts a baseband signal transmitted by the baseband processor into a radio frequency signal, and sends the radio frequency signal through the first transmitting link and/or the second transmitting link; and in a case of signal reception, converts a received radio frequency signal into a baseband signal and transmits the baseband signal to the baseband processor, to implement processing of signal transmission and signal reception.

In the embodiments of the present disclosure, as shown in <FIG>, a first terminal of the second switch <NUM> is connected to a first transmitting/receiving port <NUM> and a first signal reception port <NUM> of the first communication module <NUM>, and a second terminal of the second switch <NUM> is connected to a first antenna <NUM> and a second antenna <NUM> of the first antenna structure <NUM>.

The first communication module <NUM> includes the first transmitting/receiving port <NUM> and the first signal reception port <NUM> located at the second terminal, the first antenna structure <NUM> includes the first antenna <NUM> and the second antenna <NUM>, and the second switch <NUM> is disposed between the first communication module <NUM> and the first antenna structure <NUM>. In addition, because the second switch <NUM> is a double-pole-double-throw switch, a first terminal of the second switch <NUM> may be connected to a first transmitting/receiving port <NUM> and a first signal reception port <NUM>, and a second terminal of the second switch <NUM> is connected to a first antenna <NUM> and a second antenna <NUM>.

The first transmitting/receiving port <NUM> is connected to the first movable terminal of the second switch <NUM>, the first signal reception port <NUM> is connected to the second movable terminal of the second switch <NUM>, and the first non-movable terminal and the second non-movable terminal of the second switch <NUM> are connected to the first antenna <NUM> and the second antenna <NUM> of the first antenna structure <NUM>. The first movable terminal of the second switch <NUM> may be connected to the first non-movable terminal, and the second movable terminal of the second switch <NUM> may be connected to the second non-movable terminal, so that the first transmitting/receiving port <NUM> is connected to the first antenna <NUM>, and the first signal reception port <NUM> is connected to the second antenna <NUM>. The first movable terminal of the second switch <NUM> further may be connected to the second non-movable terminal, and the second movable terminal may be connected to the first non-movable terminal, so that the first transmitting/receiving port <NUM> is connected to the second antenna <NUM>, and the first signal reception port <NUM> is connected to the first antenna <NUM>.

That is, the first transmitting/receiving port <NUM> may be connected to the first antenna <NUM>, and the first signal reception port <NUM> may be connected to the second antenna <NUM> by the second switch <NUM>, or the first transmitting/receiving port <NUM> may be connected to the second antenna <NUM>, and the first signal reception port <NUM> may be connected to the first antenna <NUM> by the second switch <NUM>.

In the embodiments of the present disclosure, a first terminal of the third switch <NUM> is connected to <NUM> a second transmitting/receiving port <NUM> and a second signal reception port <NUM> of the second communication module, and a second terminal of the third switch <NUM> is connected to a third antenna <NUM> and a fourth antenna <NUM> of the second antenna structure <NUM>.

The second communication module <NUM> includes the second transmitting/receiving port <NUM> and the second signal reception port <NUM> located at the second terminal, the second antenna structure <NUM> includes the third antenna <NUM> and the fourth antenna <NUM>, and the third switch <NUM> is disposed between the second communication module <NUM> and the second antenna structure <NUM>. In addition, because the third switch <NUM> is a double-pole-double-throw switch, a first terminal of the third switch <NUM> may be connected to a second transmitting/receiving port <NUM> and a second signal reception port <NUM>, and a second terminal of the third switch <NUM> is connected to a third antenna <NUM> and a fourth antenna <NUM>.

The second transmitting/receiving port <NUM> is connected to the first movable terminal of the third switch <NUM>, the second signal reception port <NUM> is connected to the second movable terminal of the third switch <NUM>, and the first non-movable terminal and the second non-movable terminal of the third switch <NUM> are connected to the third antenna <NUM> and the fourth antenna <NUM> of the second antenna structure <NUM>. The first movable terminal of the third switch <NUM> may be connected to the first non-movable terminal, and the second movable terminal of the third switch <NUM> may be connected to the second non-movable terminal, so that the second transmitting/receiving port <NUM> is connected to the third antenna <NUM>, and the second signal reception port <NUM> is connected to the fourth antenna <NUM>. The first movable terminal of the third switch <NUM> further may be connected to the second non-movable terminal, and the second movable terminal may be connected to the first non-movable terminal, so that the second transmitting/receiving port <NUM> is connected to the fourth antenna <NUM>, and the second signal reception port <NUM> is connected to the third antenna <NUM>.

That is, the second transmitting/receiving port <NUM> is connected to the third antenna <NUM>, and the second signal reception port <NUM> is connected to the fourth antenna <NUM> by the third switch <NUM>, or the second transmitting/receiving port <NUM> is connected to the fourth antenna <NUM>, and the second signal reception port <NUM> is connected to the third antenna <NUM> by the third switch <NUM>.

The mature double-pole-double-throw switch with advantages in both insertion loss and isolation is used to replace the 3P3T disposed between the communication module and the antenna structure, which can reduce insertion loss of a receiving path and reduce costs. At the same time, the double-pole-double-throw switch is added before the transmitting link (between the communication module and the modem), which can eliminate the insertion loss and load impact, improve the transmitting performance, and shorten the wire length. In addition, this can achieve compatibility between two modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links, and reduce the complexity of design of a radio frequency link.

In the embodiments of the present disclosure, as shown in <FIG>, the first communication module <NUM> further includes: the first power amplifier <NUM>, the first transmitting/receiving filter <NUM>, the first receiving filter <NUM>, the first transmission port <NUM>, the second transmission port <NUM>, and the first single-pole-double-throw switch <NUM>. The first power amplifier <NUM> is connected to the first transmitting port <NUM>, the first transmitting/receiving filter <NUM> is connected to the first transmitting/receiving port <NUM>, a first non-movable terminal of the first single-pole-double-throw switch <NUM> is connected to the first power amplifier <NUM>, a second non-movable terminal of the first single-pole-double-throw switch <NUM> is connected to the first transmission port <NUM>, a movable terminal of the first single-pole-double-throw switch <NUM> is connected to the first transmitting/receiving filter <NUM>, the second transmission port <NUM> is connected to the first signal reception port <NUM> through the first receiving filter <NUM>, and the first transmission port <NUM> and the second transmission port <NUM> are both connected to a receiving port of the modem <NUM>.

In addition to the first transmitting port <NUM>, the first transmitting/receiving port <NUM>, and the first signal reception port <NUM>, the first communication module <NUM> further includes: a first power amplifier <NUM> for power amplification connected to the first transmitting port <NUM>, a first transmitting/receiving filter <NUM> for transmitting and receiving multiplexing connected to the first transmitting/receiving port <NUM>, a first transmission port <NUM> and a second transmission port <NUM> located at the same terminal as that of the first transmitting port <NUM>, a first receiving filter <NUM> disposed between the second transmission port <NUM> and the first signal reception port <NUM> and connected to the second transmission port <NUM> and the first signal reception port <NUM>, and a first single-pole-double-throw switch <NUM> for switching between transmitting and receiving links. Two non-movable terminals of the first single-pole-double-throw switch <NUM> are connected to the first power amplifier <NUM> and the first transmission port <NUM>, and the movable terminal of the first single-pole-double-throw switch <NUM> is connected to the first transmitting/receiving filter <NUM>. Through switch switching of the first single-pole-double-throw switch <NUM>, the first transmitting/receiving filter <NUM> may be connected to the first power amplifier <NUM>, or the first transmitting/receiving filter <NUM> may be connected to the first transmission port <NUM>. The first transmission port <NUM> and the second transmission port <NUM> are receiving ports, and are both connected to the receiving port of the modem <NUM> to transmit a received radio frequency signal to the modem <NUM>.

In a case that the first transmitting link corresponding to the first communication module <NUM> is conducted, the movable terminal and the first non-movable terminal of the first single-pole-double-throw switch <NUM> are connected. At this time, the first single-pole-double-throw switch <NUM> connects the first power amplifier <NUM> to the first transmitting/receiving filter <NUM>. The modem <NUM>, the first switch <NUM>, the first transmitting port <NUM>, the first power amplifier <NUM>, the first single-pole-double-throw switch <NUM>, the first transmitting/receiving filter <NUM>, the first transmitting/receiving port <NUM>, the second switch <NUM>, and a first transmitting antenna are connected in sequence, and the first transmitting antenna is the first antenna <NUM> or the second antenna <NUM>.

In a case that the first single-pole-double-throw switch <NUM> connects the first power amplifier <NUM> to the first transmitting/receiving filter <NUM>, the modem <NUM>, the first switch <NUM>, the first transmitting port <NUM>, the first power amplifier <NUM>, the first single-pole-double-throw switch <NUM>, the first transmitting/receiving filter <NUM>, the first transmitting/receiving port <NUM>, the second switch <NUM>, and a first transmitting antenna are connected, so that the first transmitting link may be formed.

The first communication module <NUM> corresponds to the first receiving link and the second receiving link. In a case that the first receiving link corresponding to the first communication module <NUM> is conducted, the movable terminal of the first single-pole-double-throw switch <NUM> is connected to the second non-movable terminal, a first receiving antenna, the second switch <NUM>, the first transmitting/receiving port <NUM>, the first transmitting/receiving filter <NUM>, the first single-pole-double-throw switch <NUM>, the first transmission port <NUM>, and the modem <NUM> are connected in sequence. In a case that the second receiving link corresponding to the first communication module <NUM> is conducted, a second receiving antenna, the second switch <NUM>, the first signal reception port <NUM>, the first receiving filter <NUM>, the second transmission port <NUM>, and the modem <NUM> are connected in sequence. Each of the first receiving antenna and the second receiving antenna is one of the first antenna <NUM>, the second antenna <NUM>.

In a case that the first single-pole-double-throw switch <NUM> connects the first transmission port <NUM> to the first transmitting/receiving filter <NUM>, the first receiving antenna, the second switch <NUM>, the first transmitting/receiving port <NUM>, the first transmitting/receiving filter <NUM>, the first single-pole-double-throw switch <NUM>, the first transmission port <NUM>, and the modem <NUM> are connected, so that the first receiving link may be formed. The second receiving antenna, the second switch <NUM>, the first signal reception port <NUM>, the first receiving filter <NUM>, the second transmission port <NUM>, and the modem <NUM> are connected in sequence; and are always in a conductive state, so that the second receiving link may be formed. In a case that the first receiving link is conducted, the first power amplifier <NUM> may be in an off state.

Each of the first receiving antenna and the second receiving antenna is one of the first antenna <NUM> and the second antenna <NUM>, that is, in a case that the first receiving antenna is the first antenna <NUM>, the second receiving antenna is the second antenna <NUM>. Correspondingly, in a case that the first receiving antenna is the second antenna <NUM>, the second receiving antenna is the first antenna <NUM>.

In the embodiments of the present disclosure, as shown in <FIG>, the second communication module <NUM> further includes: a second power amplifier <NUM>, a second transmitting/receiving filter <NUM>, a second receiving filter <NUM>, a third transmission port <NUM>, a fourth transmission port <NUM>, and a second single-pole-double-throw switch <NUM>; where
the second power amplifier <NUM> is connected to the second transmitting port <NUM>, the second transmitting/receiving filter <NUM> is connected to the second transmitting/receiving port <NUM>, a first non-movable terminal of the second single-pole-double-throw switch <NUM> is connected to the second power amplifier <NUM>, a second non-movable terminal of the second single-pole-double-throw switch <NUM> is connected to the third transmission port <NUM>, a movable terminal of the second single-pole-double-throw switch <NUM> is connected to the second transmitting/receiving filter <NUM>, the fourth transmission port <NUM> is connected to the second signal reception port <NUM> through the second receiving filter <NUM>, and the third transmission port <NUM> and the fourth transmission port <NUM> are both connected to a receiving port of the modem <NUM>.

In addition to the second transmitting port <NUM>, the second transmitting/receiving port <NUM>, and the second signal reception port <NUM>, the second communication module <NUM> further includes: a second power amplifier <NUM> for power amplification connected to the second transmitting port <NUM>, a second transmitting/receiving filter <NUM> for transmitting and receiving multiplexing connected to the second transmitting/receiving port <NUM>, a third transmission port <NUM> and a fourth transmission port <NUM> located at the same terminal as the second transmitting port <NUM>, a second receiving filter <NUM> disposed between the fourth transmission port <NUM> and the second signal reception port <NUM> and connected to the fourth transmission port <NUM> and the second signal reception port <NUM>, and a second single-pole-double-throw switch <NUM> for switching a transmitting and receiving link. Two non-movable terminals of the second single-pole-double-throw switch <NUM> are connected to the second power amplifier <NUM> and the third transmission port <NUM>, and the movable terminal of the second single-pole-double-throw switch <NUM> is connected to the second transmitting/receiving filter <NUM>. Through state switching of the second single-pole-double-throw switch <NUM>, the second transmitting/receiving filter <NUM> may be connected to the second power amplifier <NUM>, or the second transmitting/receiving filter <NUM> may be connected to the third transmission port <NUM>. The third transmission port <NUM> and the fourth transmission port <NUM> are receiving ports, and are both connected to the receiving port of the modem <NUM>, to transmit a received radio frequency signal to the modem <NUM>.

In a case that the second transmitting link corresponding to the second communication module <NUM> is conducted, the movable terminal and the first non-movable terminal of the second single-pole-double-throw switch <NUM> are connected, the modem <NUM>, the first switch <NUM>, the second transmitting port <NUM>, the second power amplifier <NUM>, the second single-pole-double-throw switch <NUM>, the second transmitting/receiving filter <NUM>, the second transmitting/receiving port <NUM>, the third switch <NUM>, and a second transmitting antenna are connected in sequence, and the second transmitting antenna is the third antenna <NUM> or the fourth antenna <NUM>.

In a case that the second single-pole-double-throw switch <NUM> connects the second power amplifier <NUM> to the second transmitting/receiving filter <NUM>, the modem <NUM>, the first switch <NUM>, the second transmitting port <NUM>, the second power amplifier <NUM>, the second single-pole-double-throw switch <NUM>, the second transmitting/receiving filter <NUM>, the second transmitting/receiving port <NUM>, the third switch <NUM>, and a second transmitting antenna are connected, so that the second transmitting link may be formed.

The second communication module <NUM> corresponds to the third receiving link and the fourth receiving link. In a case that the third receiving link corresponding to the second communication module <NUM> is conducted, the movable terminal of the second single-pole-double-throw switch <NUM> is connected to the second non-movable terminal, a third receiving antenna, the third switch <NUM>, the second transmitting/receiving port <NUM>, the second transmitting/receiving filter <NUM>, the second single-pole-double-throw switch <NUM>, the third transmission port <NUM>, and the modem <NUM> are connected in sequence. In a case that the fourth receiving link corresponding to the second communication module <NUM> is conducted, a fourth receiving antenna, the third switch <NUM>, the second signal reception port <NUM>, the second receiving filter <NUM>, the fourth transmission port <NUM>, and the modem <NUM> are connected in sequence. Each of the third receiving antenna and the fourth receiving antenna is one of the third antenna <NUM> and the fourth antenna <NUM>.

In a case that the second single-pole-double-throw switch <NUM> connects the third transmission port <NUM> to the second transmitting/receiving filter <NUM>, the third receiving antenna, the third switch <NUM>, the second transmitting/receiving port <NUM>, the second transmitting/receiving filter <NUM>, the second single-pole-double-throw switch <NUM>, the third transmission port <NUM>, and the modem <NUM> are connected, so that the third receiving link may be formed. The fourth receiving antenna, the third switch <NUM>, the second signal reception port <NUM>, the second receiving filter <NUM>, the fourth transmission port <NUM>, and the modem <NUM> are connected in sequence; and are always in a conductive state, so that the fourth receiving link may be formed. In a case that the third receiving link is conducted, the second power amplifier <NUM> may be in an off state.

In a case that the third receiving antenna is the third antenna <NUM>, the fourth receiving antenna is the fourth antenna <NUM>. Correspondingly, in a case that the third receiving antenna is the fourth antenna <NUM>, the fourth receiving antenna is the third antenna <NUM>.

In the foregoing embodiments of the present disclosure, the first communication module <NUM> and the second communication module <NUM> are both <NUM> communication modules, which may realize compatibility of two modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links in <NUM> and <NUM> coexistence mode and <NUM> large-scale access. This reduces the design complexity of the terminal device, improves performance, and reduces manufacturing costs.

Optionally, the first communication module <NUM> and the second communication module <NUM> may be communication circuits or communication chips.

In the signal transceiving apparatus provided in the embodiments of the present disclosure, the first terminal of the first communication module and the first terminal of the second communication module are respectively connected to the first switch, the second switch is disposed between the second terminal of the first communication module and the first antenna structure, and the third switch is disposed between the second terminal of the second communication module and the second antenna structure. By setting connection states of the three switches, in a case of signal transmission, at least one of the first transmitting link corresponding to the first communication module and the second transmitting link corresponding to the second communication module is in a conductive state. In a case of signal reception, the two receiving links corresponding to the first communication module and the two receiving links corresponding to the second communication module are all in a conductive state. This can ensure the compatibility between modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links. In addition, the structural design can reduce insertion loss of the receiving link, improve performance of the transmitting link, shorten a wire length, and reduce the design complexity of the terminal device and reduce manufacturing costs.

An embodiment of this disclosure further provides a terminal device, including the signal transceiving apparatus. As shown in <FIG>, the terminal device further includes a processor <NUM>, which is connected to the signal transceiving apparatus, and may control the operation of the signal transceiving apparatus.

The processor <NUM> is specifically connected to the first switch <NUM>, the second switch <NUM>, the third switch <NUM>, the first communication module <NUM>, and the second communication module <NUM> of the signal transceiving apparatus. In the mode of transmitting by using two links and receiving by using four links, the processor <NUM> may determine the first transmitting antenna in the first antenna <NUM> and the second antenna <NUM>, and determine the second transmitting antenna in the third antenna <NUM> and the fourth antenna <NUM> according to an environmental reference signal. In the mode of transmitting by using one link and receiving by using four links, the processor <NUM> may determine the transmitting antenna in the first antenna <NUM>, the second antenna <NUM>, the third antenna <NUM>, and the fourth antenna <NUM> according to an environmental reference signal.

As shown in <FIG> and <FIG>, in the mode of transmitting by using two links and receiving by using four links, the processor <NUM> is connected to the network to monitor the environmental reference signal in real time. For the first communication module <NUM>, the processor <NUM> needs to determine an antenna with a better environmental reference signal in the first antenna <NUM> and the second antenna <NUM> as the first transmitting antenna. Then, the processor <NUM> sends a control signal to the second switch <NUM>, so that the first transmitting/receiving port <NUM> of the first communication module <NUM> is connected to the first transmitting antenna through the second switch <NUM>, and the first signal reception port <NUM> of the first communication module <NUM> is connected to another antenna through the second switch <NUM>.

The processor <NUM> may control the first switch <NUM> in advance to connect the first transmitting port <NUM> of the first communication module <NUM> to the first port or the second port of the modem <NUM>. In a case of signal transmission, the processor <NUM> controls the first single-pole-double-throw switch <NUM> to connect the first power amplifier <NUM> to the first transmitting/receiving filter <NUM>. At this time, a transmitted signal enters the first transmitting port <NUM> from the first port or the second port of the modem <NUM> through the first switch <NUM>, is transmitted by the first transmitting port <NUM> to the first power amplifier <NUM>, is amplified in the first power amplifier <NUM>, then is transmitted to the first transmitting/receiving filter <NUM>, is filtered in the first transmitting/receiving filter <NUM>, and is transmitted to the first transmitting antenna through the first transmitting/receiving port <NUM> and the second switch <NUM>. The signal is sent by the first transmitting antenna.

When receiving a radio frequency signal, the processor <NUM> can control the first power amplifier <NUM> to be in a turn-off state, and control the first single-pole-double-throw switch <NUM> to connect the first transmission port <NUM> to the first transmitting/receiving filter <NUM>. Based on an initial default configuration of the second switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the first transmitting/receiving filter <NUM> through the first transmitting/receiving port <NUM>, and then is transmitted to the first transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the second switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the first receiving filter <NUM> through the first signal reception port <NUM>, and then is transmitted to the second transmission port <NUM> after filtering is completed. The first transmission port <NUM> and the second transmission port <NUM> are connected to the receiving port of the modem <NUM>, to realize signal transmission to the modem <NUM>, and the modem <NUM> processes the received signal and then transmits the signal to the baseband processor.

It should be noted that a connection status of the first port and the second port of the modem <NUM> and the first communication module <NUM> and the second communication module <NUM> may be autonomously set by a user.

For the second communication module <NUM>, the processor <NUM> needs to determine an antenna with a better environmental reference signal in the third antenna <NUM> and the fourth antenna <NUM> as the second transmitting antenna. Then, the processor <NUM> sends a control signal to the third switch <NUM>, so that the second transmitting/receiving port <NUM> of the second communication module <NUM> is connected to the second transmitting antenna through the third switch <NUM>, and the second signal reception port <NUM> of the second communication module <NUM> is connected to another antenna through the third switch <NUM>.

The processor <NUM> may control the first switch <NUM> in advance to connect the second transmitting port <NUM> of the second communication module <NUM> to the second port or the first port of the modem <NUM>. In a case of signal transmission, the processor <NUM> controls the second single-pole-double-throw switch <NUM> to connect the second power amplifier <NUM> to the second transmitting/receiving filter <NUM>. At this time, a transmitted signal enters the second transmitting port <NUM> from the second port or the first port of the modem <NUM> through the first switch <NUM>, is transmitted by the second transmitting port <NUM> to the second power amplifier <NUM>, is amplified in the second power amplifier <NUM>, then is transmitted to the second transmitting/receiving filter <NUM>, is filtered in the second transmitting/receiving filter <NUM>, and is transmitted to the second transmitting antenna through the second transmitting/receiving port <NUM> and the third switch <NUM>. The signal is sent by the second transmitting antenna.

In the case of receiving a radio frequency signal, the processor <NUM> can control the second power amplifier <NUM> to be in a turn-off state, and control the second single-pole-double-throw switch <NUM> to connect the third transmission port <NUM> to the second transmitting/receiving filter <NUM>. Based on an initial default configuration of the third switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the second transmitting/receiving filter <NUM> through the second transmitting/receiving port <NUM>, and then is transmitted to the third transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the third switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the second receiving filter <NUM> through the second signal reception port <NUM>, and then is transmitted to the fourth transmission port <NUM> after filtering is completed. The third transmission port <NUM> and the fourth transmission port <NUM> are connected to the receiving port of the modem <NUM>, to transmit a signal to the modem <NUM>. The modem <NUM> processes the received signal and then transmits the signal to the baseband processor.

In the above process, the first transmitting antenna and the second transmitting antenna are determined by monitoring the environmental reference signal in real time, and the determined first transmitting antenna and second transmitting antenna are used for transmission, to achieve the mode of transmitting by using two links and receiving by using four links and improve communication quality.

As shown in <FIG> and <FIG>, in the mode of transmitting by using one link and receiving by using four links, the processor <NUM> is connected to the network to monitor the environmental reference signal in real time. An antenna with a better environmental reference signal is determined in the first antenna <NUM>, the second antenna <NUM>, the third antenna <NUM>, and the fourth antenna <NUM> as the transmitting antenna. In a case that the transmitting antenna is the first antenna <NUM> or the second antenna <NUM>, the processor <NUM> may control the second communication module <NUM> to be in a turn-off state to save power, and can still control the third switch <NUM> to connect the second transmitting/receiving port <NUM> of the second communication module <NUM> to the third antenna <NUM> or the fourth antenna <NUM>, and connect the second signal reception port <NUM> of the second communication module <NUM> to the fourth antenna <NUM> or the third antenna <NUM>.

The processor <NUM> controls the first communication module <NUM> to be in an active state, and a control signal is sent to the second switch <NUM>, so that the first transmitting/receiving port <NUM> of the first communication module <NUM> is connected to the transmitting antenna through the second switch <NUM>, and the first signal reception port <NUM> of the first communication module <NUM> is connected to another antenna through the second switch <NUM>.

The processor <NUM> may control the first switch <NUM> in advance to connect the first transmitting port <NUM> of the first communication module <NUM> to the first port or the second port of the modem <NUM> and connect the second transmitting port <NUM> of the second communication module <NUM> to the second port or the first port of the modem <NUM>.

In a case of signal transmission, the processor <NUM> controls the first single-pole-double-throw switch <NUM> to connect the first power amplifier <NUM> to the first transmitting/receiving filter <NUM>. At this time, a transmitted signal enters the first transmitting port <NUM> from the first port or the second port of the modem <NUM> through the first switch <NUM>, is transmitted by the first transmitting port <NUM> to the first power amplifier <NUM>, is amplified in the first power amplifier <NUM>, is transmitted to the first transmitting/receiving filter <NUM>, is filtered in the first transmitting/receiving filter <NUM>, and is transmitted to the transmitting antenna through the first transmitting/receiving port <NUM> and the second switch <NUM>. The signal is sent by the transmitting antenna.

In the case of receiving a radio frequency signal, the processor <NUM> can control the first power amplifier <NUM> to be in a turn-off state, control the first single-pole-double-throw switch <NUM> to connect the first transmission port <NUM> to the first transmitting/receiving filter <NUM>, control the second communication module <NUM> to turn on, and control the second single-pole-double-throw switch <NUM> to connect the third transmission port <NUM> to the second transmitting/receiving filter <NUM>. At this time, the processor <NUM> can control the first power amplifier <NUM> and the second power amplifier <NUM> to be in a turn-off state. For the first antenna <NUM> or the second antenna <NUM>, based on an initial default configuration of the second switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the first transmitting/receiving filter <NUM> through the first transmitting/receiving port <NUM>, and then is transmitted to the first transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the second switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the first receiving filter <NUM> through the first signal reception port <NUM>, and then is transmitted to the second transmission port <NUM> after filtering is completed. For the third antenna <NUM> or the fourth antenna <NUM>, based on an initial default configuration of the third switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the second transmitting/receiving filter <NUM> through the second transmitting/receiving port <NUM>, and then is transmitted to the third transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the third switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the second receiving filter <NUM> through the second signal reception port <NUM>, and then is transmitted to the fourth transmission port <NUM> after filtering is completed.

The first transmission port <NUM>, the second transmission port <NUM>, the third transmission port <NUM>, and the fourth transmission port <NUM> are connected to the receiving port of the modem <NUM>, to realize signal transmission to the modem <NUM>, and the modem <NUM> processes the received signal and then transmits the signal to the baseband processor.

In summary, in a transmitting phase, the processor may control the first transmitting link of the first communication module to achieve radio frequency signal transmission. In a receiving phase, the processor may control the first receiving link and the second receiving link of the first communication module to be conducted, control the second communication module to turn on, and control the third receiving link and the fourth receiving link of the second communication module to be conducted, to realize radio frequency signal reception.

In a case that the transmitting antenna is the third antenna <NUM> or the fourth antenna <NUM>, the processor <NUM> may control the first communication module <NUM> to be in a turn-off state to save power, and can still control the second switch <NUM> to connect the first transmitting/receiving port <NUM> of the first communication module <NUM> to the first antenna <NUM> or the second antenna <NUM>, and connect the first signal reception port <NUM> of the first communication module <NUM> to the second antenna <NUM> or the first antenna <NUM>.

The processor <NUM> controls the second communication module <NUM> to be in an active state, and a control signal is sent to the third switch <NUM>, so that the second transmitting/receiving port <NUM> of the second communication module <NUM> is connected to the transmitting antenna through the third switch <NUM>, and the second signal reception port <NUM> of the second communication module <NUM> is connected to another antenna through the third switch <NUM>.

In a case of signal transmission, the processor <NUM> controls the second single-pole-double-throw switch <NUM> to connect the second power amplifier <NUM> to the second transmitting/receiving filter <NUM>. At this time, a transmitted signal enters the second transmitting port <NUM> from the first port or the second port of the modem <NUM> through the first switch <NUM>, is transmitted by the second transmitting port <NUM> to the second power amplifier <NUM>, is amplified in the second power amplifier <NUM>, then is transmitted to the second transmitting/receiving filter <NUM>, is filtered in the second transmitting/receiving filter <NUM>, and is transmitted to the transmitting antenna through the second transmitting/receiving port <NUM> and the third switch <NUM>. The transmitting antenna performs signal transmission.

In the case of receiving a radio frequency signal, the processor <NUM> can control the second power amplifier <NUM> to be in a turn-off state, control the second single-pole-double-throw switch <NUM> to connect the third transmission port <NUM> to the second transmitting/receiving filter <NUM>, control the first communication module <NUM> to turn on, and control the first single-pole-double-throw switch <NUM> to connect the first transmission port <NUM> to the first transmitting/receiving filter <NUM>. At this time, the processor <NUM> can control the first power amplifier <NUM> and the second power amplifier <NUM> to be in a turn-off state. For the first antenna <NUM> or the second antenna <NUM>, based on an initial default configuration of the second switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the first transmitting/receiving filter <NUM> through the first transmitting/receiving port <NUM>, and then is transmitted to the first transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the second switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the first receiving filter <NUM> through the first signal reception port <NUM>, and then is transmitted to the second transmission port <NUM> after filtering is completed. For the third antenna <NUM> or the fourth antenna <NUM>, based on an initial default configuration of the third switch <NUM>, a channel of radio frequency signal received by the antenna is transmitted to the second transmitting/receiving filter <NUM> through the second transmitting/receiving port <NUM>, and then is transmitted to the third transmission port <NUM> after the filtering is completed. Based on an initial default configuration of the third switch <NUM>, another channel of radio frequency signal received by the antenna is transmitted to the second receiving filter <NUM> through the second signal reception port <NUM>, and then is transmitted to the fourth transmission port <NUM> after filtering is completed.

In summary, in a transmitting phase, the processor may control the second transmitting link of the second communication module to achieve radio frequency signal transmission. In a receiving phase, the processor may control the third receiving link and the fourth receiving link of the second communication module to be conducted, control the first communication module to turn on, and control the first receiving link and the second receiving link of the first communication module to be conducted, to realize radio frequency signal reception.

In the embodiments of the present disclosure, the first single-pole-double-throw switch <NUM> and the second single-pole-double-throw switch <NUM> are connected to the processor <NUM>, and may switch between states according to the control of the processor <NUM>, and the first power amplifier <NUM> and the second power amplifier <NUM> are connected to the processor <NUM>, and may switch between a working state and a non-working state according to the control of the processor <NUM>.

Through the cooperation of the first switch, the second switch, and the third switch, the modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links are compatible. At the same time, the transmitting antenna switches between the <NUM> antennas. Through the cooperation between the processor and the signal transceiving apparatus, an antenna with a better uplink may be selected according to the environmental reference signal, to ensure the communication quality of the signal transceiving apparatus and avoid the problem of poor communication quality in complex scenarios.

In summary, the implementation process of modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links is provided above. By disposing the first switch, the second switch, and the third switch, insertion loss of the receiving link may be reduced, performance of the transmitting link may be improved, and the wire length may be reduced. In addition, this can ensure the compatibility of modes of transmitting by using one link and receiving by using four links and transmitting by using two links and receiving by using four links, the selection of the uplink according to the environmental reference signal, and ensure the communication quality. Besides, the structural design may reduce the design complexity of the terminal device, improve the performance, and reduce manufacturing costs.

<FIG> is a schematic diagram of a hardware structure of a terminal device implementing the various embodiments of the present disclosure. The terminal device <NUM> includes, but not limited to: a radio frequency unit <NUM>, a network module <NUM>, an audio output unit <NUM>, an input unit <NUM>, a sensor <NUM>, a display unit <NUM>, a user input unit <NUM>, an interface unit <NUM>, a memory <NUM>, a processor <NUM>, a power supply <NUM>, and the like.

A person skilled in the art may understand that the structure of the terminal device shown in <FIG> does not constitute a limitation to the terminal device. The terminal device may include more or fewer components than that shown in the figure, or a combination of some components, or an arrangement of different components. In this embodiment of the present disclosure, the terminal device includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, or the like.

It should be understood that in this embodiment of this disclosure, the radio frequency unit <NUM> may be configured to receive and send signals in a process of receiving and sending information or calling. Specifically, the radio frequency unit <NUM> receives downlink data from a base station for processing by the processor <NUM>, and sends uplink data to the base station. Generally, the radio frequency unit <NUM> includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit <NUM> may further communicate with other devices through a wireless communications system and network.

The radio frequency unit <NUM> includes: a first communication module and a second communication module; a first switch connected to a first terminal of the first communication module and a first terminal of the second communication module; a second switch connected to a second terminal of the first communication module, and a first antenna structure connected to the second switch; and a third switch connected to a second terminal of the second communication module, and a second antenna structure connected to the third switch. The first communication module corresponds to a first transmitting link and two receiving links, the second communication module corresponds to a second transmitting link and two receiving links; in a case of signal transmission, at least one of the first transmitting link and the second transmitting link is in a conductive state, and in a case of signal reception, the two receiving links corresponding to the first communication module and the two receiving links corresponding to the second communication module are all in a conductive state.

The first switch, the second switch, and the third switch are all double-pole-double-throw switches.

The radio frequency module <NUM> further includes: a modem. A first terminal of the first switch is connected to a first port and a second port of the modem, and a second terminal of the first switch is connected to a first transmitting port of the first communication module and a second transmitting port of the second communication module.

A first terminal of the second switch is connected to a first transmitting/receiving port and a first signal reception port of the first communication module, and a second terminal of the second switch is connected to a first antenna and a second antenna of the first antenna structure.

A first terminal of the third switch is connected to a second transmitting/receiving port and a second signal reception port of the second communication module, and a second terminal of the third switch is connected to a third antenna and a fourth antenna of the second antenna structure.

The first communication module further includes: a first power amplifier, a first transmitting/receiving filter, a first receiving filter, a first transmission port, a second transmission port, and a first single-pole-double-throw switch. The first power amplifier is connected to the first transmitting port, the first transmitting/receiving filter is connected to the first transmitting/receiving port, a first non-movable terminal of the first single-pole-double-throw switch is connected to the first power amplifier, a second non-movable terminal of the first single-pole-double-throw switch is connected to the first transmission port, a movable terminal of the first single-pole-double-throw switch is connected to the first transmitting/receiving filter, the second transmission port is connected to the first signal reception port through the first receiving filter, and the first transmission port and the second transmission port are both connected to a receiving port of the modem.

In a case that the first transmitting link corresponding to the first communication module is conducted, the movable terminal and the first non-movable terminal of the first single-pole-double-throw switch are connected, the modem, the first switch, the first transmitting port, the first power amplifier, the first single-pole-double-throw switch, the first transmitting/receiving filter, the first transmitting/receiving port, the second switch, and a first transmitting antenna are connected in sequence, and the first transmitting antenna is the first antenna or the second antenna.

The first communication module corresponds to the first receiving link and the second receiving link. In a case that the first receiving link corresponding to the first communication module is conducted, the movable terminal and the second non-movable terminal of the first single-pole-double-throw switch are connected, and the first receiving antenna, the second switch, the first transmitting/receiving port, the first transmitting/receiving filter, the first single-pole-double-throw switch, the first transmission port, and the modem are connected in sequence;.

In a case that the second receiving link corresponding to the first communication module is conducted, the second receiving antenna, the second switch, the first signal reception port, the first receiving filter, the second transmission port, and the modem are connected in sequence; and
each of the first receiving antenna and the second receiving antenna is one of the first antenna and the second antenna.

The second communication module further includes: a second power amplifier, a second transmitting/receiving filter, a second receiving filter, a third transmission port, a fourth transmission port, and a second single-pole-double-throw switch; where
the second power amplifier is connected to the second transmitting port, the second transmitting/receiving filter is connected to the second transmitting/receiving port, a first non-movable terminal of the second single-pole-double-throw switch is connected to the second power amplifier, a second non-movable terminal of the second single-pole-double-throw switch is connected to the third transmission port, a movable terminal of the second single-pole-double-throw switch is connected to the second transmitting/receiving filter, the fourth transmission port is connected to the second signal reception port through the second receiving filter, and the third transmission port and the fourth transmission port are both connected to a receiving port of the modem.

In a case that the second transmitting link corresponding to the second communication module is conducted, the movable terminal and the first non-movable terminal of the second single-pole-double-throw switch are connected, the modem, the first switch, the second transmitting port, the second power amplifier, the second single-pole-double-throw switch, the second transmitting/receiving filter, the second transmitting/receiving port, the third switch, and a second transmitting antenna are connected in sequence, and the second transmitting antenna is the third antenna or the fourth antenna.

The second communication module corresponds to the third receiving link and the fourth receiving link. In a case that the third receiving link corresponding to the second communication module is conducted, the movable terminal and the second non-movable terminal of the second single-pole-double-throw switch are connected, and the third receiving antenna, the third switch, the second transmitting/receiving port, the second transmitting/receiving filter, the second single-pole-double-throw switch, the third transmission port, and the modem are connected in sequence;.

In a case that the fourth receiving link corresponding to the second communication module is conducted, the fourth receiving antenna, the third switch, the second signal reception port, the second receiving filter, the fourth transmission port, and the modem are connected in sequence; and
each of the third receiving antenna and the fourth receiving antenna is one of the third antenna and the fourth antenna.

The first communication module and the second communication module are both <NUM> communication modules.

The processor <NUM> is connected to the first switch, the second switch, the third switch, the first communication module, and the second communication module.

The terminal device provides a user with wireless broadband Internet access through the network module <NUM>, for example, helps the user send and receive emails, browse web pages, and access streaming media.

The audio output unit <NUM> can convert audio data received by the radio frequency unit <NUM> or the network module <NUM> or stored in the memory <NUM> into an audio signal, and output the audio signal as sound. In addition, the audio output unit <NUM> may further provide audio output (for example, call signal receiving sound or message receiving sound) related to a specific function performed by the terminal device <NUM>. The audio output unit <NUM> includes a speaker, a buzzer, a telephone receiver, and the like.

The input unit <NUM> is configured to receive audio or video signals. The input unit <NUM> may include a graphics processing unit (Graphics Processing Unit, GPU) <NUM> and a microphone <NUM>. The graphics processing unit <NUM> processes image data of a static image or a video obtained by an image capturing apparatus (for example, a camera) in a video capturing mode or an image capturing mode. A processed image frame may be displayed on the display unit <NUM>. The image frame processed by the graphics processing unit <NUM> may be stored in the memory <NUM> (or another storage medium) or sent through the radio frequency unit <NUM> or the network module <NUM>. The microphone <NUM> may receive a sound and can process such sound into audio data. Processed audio data may be converted, in telephone call mode, into a format that may be sent to a mobile communication base station via the radio frequency unit <NUM> for output.

The terminal device <NUM> further includes at least one sensor <NUM>, such as an optical sensor, a motion sensor, and other sensors. Specifically, the optical sensor includes an ambient optical sensor and a proximity sensor. The ambient optical sensor may adjust luminance of the display panel <NUM> based on brightness of ambient light. The proximity sensor may turn off the display panel <NUM> and/or backlight when the terminal device <NUM> approaches an ear. As a type of the motion sensor, an accelerometer sensor may detect an acceleration in each direction (generally, three axes), and detect a value and a direction of gravity when the accelerometer sensor is static, and may be used to recognize a terminal device posture (such as screen switching between landscape and portrait modes, a related game, or magnetometer posture calibration), a function related to vibration recognition (such as a pedometer or a knock), and the like. The sensor <NUM> may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor.

The display unit <NUM> is configured to display information input by a user or information provided to a user. The display unit <NUM> may include a display panel <NUM>, and the display panel <NUM> may be configured in a form of liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The user input unit <NUM> may be configured to receive input numeral or character information, and generate key signal input related to user setting and function control of the terminal device. Specifically, the user input unit <NUM> includes a touch panel <NUM> and another input device <NUM>. The touch panel <NUM> is also referred to as a touchscreen, and may collect a touch operation performed by a user on or near the touch panel <NUM> (such as an operation performed by a user on the touch panel <NUM> or near the touch panel <NUM> by using any proper object or accessory, such as a finger or a stylus). The touch panel <NUM> may include two parts: a touch detection apparatus and a touch controller. The touch detection apparatus detects a touch position of the user, detects a signal brought by the touch operation, and transmits the signal to the touch controller. The touch controller receives touch information from the touch detection apparatus, converts the touch information into contact coordinates, transmits the contact coordinates to the processor <NUM>, receives a command sent by the processor <NUM>, and executes the command. In addition, the touch panel <NUM> may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel <NUM>, the user input unit <NUM> may also include the another input device <NUM>. Specifically, the another input device <NUM> may include, but not limited to, a physical keyboard, a function key (for example, a volume control key or a switch key), a trackball, a mouse, and a joystick.

Further, the touch panel <NUM> may cover the display panel <NUM>. In the case of detecting a touch operation on or near the touch panel <NUM>, the touch panel <NUM> transmits the touch operation to the processor <NUM> to determine a type of a touch event. Then the processor <NUM> provides corresponding visual output on the display panel <NUM> based on the type of the touch event. Although in <FIG>, the touch panel <NUM> and the display panel <NUM> are configured as two independent components to implement input and output functions of the terminal device, in some embodiments, the touch panel <NUM> and the display panel <NUM> may be integrated to implement the input and output functions of the terminal device. Details are not limited herein.

The interface unit <NUM> is an interface for connecting an external apparatus to the terminal device <NUM>. For example, the external apparatus may include a wired or wireless headset jack, an external power supply (or a battery charger) port, a wired or wireless data port, a storage card port, a port for connecting an apparatus having an identification module, an audio input/output (I/O) port, a video I/O port, a headset jack, or the like. The interface unit <NUM> may be configured to receive an input (for example, data information or power) from an external apparatus and transmit the received input to one or more elements in the terminal device <NUM>, or transmit data between the terminal device <NUM> and the external apparatus.

The memory <NUM> may be configured to store a software program and various data. The memory <NUM> may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function and an image playback function), and the like. The data storage area may store data (such as audio data and an address book) created based on the use of the mobile phone, and the like. In addition, the memory <NUM> may include a high-speed random access memory or a nonvolatile memory, for example, at least one disk storage device, a flash memory, or another volatile solid-state storage device.

The processor <NUM> is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and circuits, and performs various functions of the terminal device and processes data by running or executing the software programs and/or the modules stored in the memory <NUM> and invoking data stored in the memory <NUM>, so as to monitor the terminal device as a whole. The processor <NUM> may include one or more processing units. Optionally, the processor <NUM> may be integrated with an application processor and a modem processor. The application processor mainly processes an operating system, a user interface, an application program, and the like, and the modem processor mainly processes wireless communication. It may be understood that alternatively, the modem processor may not be integrated into the processor <NUM>.

The terminal device <NUM> may further include the power supply <NUM> (such as a battery) that supplies power to each component. Optionally, the power supply <NUM> may be logically connected to the processor <NUM> by using a power management system, to implement functions such as charging, discharging, and power consumption management by using the power management system.

It should be noted that, in this specification, the terms "include", "comprise", or any of their variants are intended to cover a non-exclusive inclusion, such that a process, a method, an article, or an apparatus that includes a list of elements not only includes those elements but also includes other elements that are not expressly listed, or further includes elements inherent to such a process, method, article, or apparatus. In the absence of more restrictions, an element defined by the statement "including a. " does not exclude another same element in a process, method, article, or apparatus that includes the element. The use of "at least one of A and B" in the specification and the claims should be understood as "only A exists, only B exists, or both A and B exist".

Based on the foregoing descriptions of the embodiments, a person skilled in the art may clearly understand that the method in the foregoing embodiment may be implemented by software in addition to a necessary universal hardware platform or by hardware only. In most circumstances, the former is a preferred implementation manner. Based on such an understanding, the technical solutions of the present disclosure essentially or the part contributing to related technologies may be implemented in a form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (Read-only Memory, ROM)/random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disc) and includes several instructions for instructing user equipment (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods described in the embodiments of the present disclosure.

Claim 1:
A signal transceiving apparatus, characterized by comprising:
a first communication module (<NUM>) and a second communication module (<NUM>);
a first switch (<NUM>) connected to a first terminal of the first communication module (<NUM>) and a first terminal of the second communication module (<NUM>) , respectively;
a second switch (<NUM>) connected to a second terminal of the first communication module (<NUM>), a first antenna structure (<NUM>) connected to the second switch (<NUM>);
a third switch (<NUM>) connected to a second terminal of the second communication module (<NUM>), and a second antenna structure (<NUM>) connected to the third switch (<NUM>); wherein
the first switch (<NUM>), the second switch (<NUM>), and the third switch (<NUM>) are all double-pole-double-throw switches; wherein
the signal transceiving apparatus further comprises: a modem (<NUM>);
a first terminal of the first switch (<NUM>) is connected to a first port and a second port of the modem (<NUM>);
a second terminal of the first switch (<NUM>) is connected to a first transmitting port (<NUM>) of the first communication module (<NUM>) and a second transmitting port (<NUM>) of the second communication module (<NUM>); and
the first communication module (<NUM>) is configured to form a first transmitting path and two receiving paths with the modem (<NUM>), the first switch (<NUM>), the second switch (<NUM>) and the first antenna structure (<NUM>), the second communication module (<NUM>) is configured to form a second transmitting path and two receiving paths with the modem (<NUM>), the first switch (<NUM>), the third switch (<NUM>) and the second antenna structure (<NUM>); in a case of signal transmission, at least one of the first transmitting path and the second transmitting path is in a conductive state, and in a case of signal reception, the two receiving paths corresponding to the first communication module (<NUM>) and the two receiving paths corresponding to the second communication module (<NUM>) are all in a conductive state.