CN115398811A

CN115398811A - Switching device, communication method and related equipment

Info

Publication number: CN115398811A
Application number: CN202180005197.6A
Authority: CN
Inventors: 吕清; 史坡; 邱丹; 荆伟涛; 邹俊浩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2022-11-25
Anticipated expiration: 2041-03-24
Also published as: CN115398811B; WO2022198513A1

Abstract

The embodiment of the application discloses a switching device, a communication method and related equipment, wherein the switching device comprises N + X first ports, K + N second ports and N combiners; the K second ports are respectively connected with the K antennas one by one; the N second ports are respectively connected with the first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with the N first ports one by one; the switching device is used for: the method comprises the steps that the ith first port in N first ports and the jth second port in K second ports are conducted, and first-class signals are transmitted through a jth antenna; and when the second-class signals need to be transmitted through the jth antenna, conducting the s-th first port of the X first ports and the ith second port of the N second ports, and transmitting the second-class signals through the jth antenna. By adopting the embodiment of the application, the circuit area can be reduced and the manufacturing cost can be reduced under the condition of realizing antenna switching and normal work.

Description

Switching device, communication method and related equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a switching device, a communication method and related equipment.

Background

Firstly, in order to solve the problem of 'death and holding' of a mobile phone terminal, a Transmit Antenna Selection (TAS) technology is widely used nowadays, but with more and more application scenes such as horizontal screen games and videos, the probability that a user uses a mobile phone horizontal screen is higher and higher, so that the possibility that the upper and lower antennas of the mobile phone are both 'held' by both hands of the user is caused, and the use experience of the user is seriously influenced. Therefore, referring to fig. 1, fig. 1 is a schematic diagram of a multi-antenna switching circuit of LTE, and as shown in fig. 1, a multi-antenna selection (MAS) technology adds a left antenna and a right antenna on the basis of an upper antenna and a lower antenna, so that transmission of a Long Term Evolution (LTE) main diversity signal can be selected among a lower left antenna (ANT 0), a lower right antenna (ANT 2), an upper left antenna (ANT 1), and an upper right antenna (ANT 3), thereby reducing the probability that the antennas are seized by a user and ensuring the user experience. Then, referring to fig. 2, fig. 2 is a schematic diagram of an NR multi-antenna switching circuit, as shown in fig. 2, in general, a New Radio (NR) of a mobile terminal needs to support one Sounding Reference Signal (SRS) for transmitting and receiving four signals (1 transmit 4 receiver,1t4 r), that is, SRS signals need to be transmitted on 4 antennas (e.g., ANT4, ANT5, ANT6, and ANT7 shown in fig. 2) in turn, so that a base station can perform quality estimation and the like on a downlink channel of the mobile terminal through the SRS signals.

As described above, when the LTE main diversity signal needs to be switched between 4 antennas for transmission, and the SRS signal of NR needs to be transmitted between 4 antennas by turns, a total of 8 physical antennas are required. Therefore, in order to reduce the number of antennas and the production cost, a scheme of sharing 4 antennas by LTE and NR is often adopted. However, although the number of antennas is directly reduced by half in the conventional LTE and NR antenna sharing technology, in order to ensure normal operation when antennas are switched between LTE and NR, more additional components are added, and on the contrary, the circuit layout area and manufacturing cost are increased, which is greatly contradictory to the purpose of originally providing a shared antenna scheme.

Therefore, how to further reduce the circuit layout area and reduce the manufacturing cost under the condition of ensuring the common antenna of LTE and NR, and realizing reasonable antenna switching and normal operation is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a switching device, a communication method and related equipment, which can further reduce the circuit layout area and reduce the manufacturing cost under the condition of realizing antenna switching and normal work.

In a first aspect, an embodiment of the present application provides a switching device, which is applied to a communication device, where the communication device includes an antenna system, where the antenna system includes K antennas; the switch device comprises N + X first ports, K + N second ports and N combiners; k second ports of the K + N second ports are respectively connected with the K antennas one by one; n second ports of the K + N second ports are respectively connected with the first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with N first ports of the N + X first ports one by one; n, X and K are integers which are more than or equal to 1; the switching device is used for: conducting the ith first port of the N first ports and the jth second port of the K second ports, and transmitting a first type of signal through the corresponding jth antenna; i is an integer greater than or equal to 1 and less than or equal to N, j is an integer greater than or equal to 1 and less than or equal to K; when a second-type signal needs to be transmitted through the jth antenna, conducting an s-th first port of the X first ports and an i-th second port of the N second ports, conducting the s-th first port to the jth second port through an i-th combiner connected with the i-th second port and the i-th first port connected with the i-th combiner, and transmitting the second-type signal through the jth antenna; s is an integer greater than or equal to 1 and less than or equal to X.

In an embodiment of the present application, a switching device is provided that includes a plurality of first ports, a plurality of second ports, and a plurality of combiners. Wherein a portion of the first ports of the plurality of first ports are used for transmitting a first type of signal (e.g., LTE primary set transmit signal, LTE primary set receive signal, and LTE diversity receive signal), and the remaining portion of the first ports of the plurality of first ports are used for transmitting a second type of signal (e.g., NR primary set transmit signal, NR primary set receive signal, and NR diversity receive signal). Some of the second ports may be connected to the plurality of antennas one by one, and the remaining second ports may be connected to the first ports for transmitting the first type of signals one by one through the combiner. Thus, for example, a first port for transmitting the first type of signal and a second port connected to the first antenna may be turned on by the switch device, so that the first type of signal may be transmitted through the first antenna. And if a second type signal also needs to be transmitted through the first antenna at this time, the first port for transmitting the second type signal and a corresponding second port, which is a second port connected to the first port for transmitting the first type signal through the combiner, may be turned on through the switching device, so that the first port for transmitting the second type signal may be indirectly turned on to the second port connected to the first antenna in a case where the first port and the second port connected to the first antenna are already turned on, so that the second type signal may also be transmitted through the first antenna. Compared with the prior art, the scheme ensures that two types of signals share one antenna system, namely, under the condition of reducing the number of the antennas, both sides can select any antenna in the shared antenna system to transmit signals, and the requirement that when the first type of signals occupy the antenna to transmit is met, the second type of signals can select the same antenna to transmit through the switch device according to actual requirements, so that the transmission of the other side cannot be interrupted due to the fact that one side occupies the antenna, the interference does not exist between the two sides, and the number of the combiners is further reduced, thereby reducing the circuit layout area and the production cost.

In a possible embodiment, the switching device is further configured to: when the second-class signal needs to be transmitted through a j 'th antenna, conducting an s' th first port of the X first ports and a j 'th second port of the K second ports, and transmitting the second-class signal through a corresponding j' th antenna; j 'is an integer greater than or equal to 1 and less than or equal to K, j is not equal to j'.

In this embodiment, when the first type of signal occupies the antenna for transmission, if the second type of signal needs to be transmitted through another antenna, the switch device may turn on the second port, where the first port for transmitting the second type of signal is connected to another antenna, so that the first signal may be transmitted through another antenna. Therefore, in combination with the content of the first aspect, the embodiment of the application can meet the requirement that when the first-type signal is transmitted by occupying an antenna, the second-type signal can be transmitted by selecting the same antenna or other antennas through the switch device according to actual requirements, the two-type signal can be transmitted by sharing one antenna system, the two-type signal selects the antenna and is transmitted without mutual interference, the transmission of the other party cannot be interrupted because one party occupies the antenna, the performance of signal transmission is improved, and the use experience of a user is guaranteed.

In one possible embodiment, the switching device comprises a first double pole double throw switch DPDT, a second DPDT, a third DPDT and a double pole four throw switch DP4T; the N first ports include two P ports of a first of the DPDTs; the X first ports comprise two P ports in the DP4T; the K second ports include two T ports in the second DPDT and two T ports in the third DPDT; the N second ports include two T ports of the DP 4T.

In the embodiment of the present application, the switch device may specifically include 3 double-pole double-throw switches, 1 double-pole four-throw switch, and the plurality of combiners. Therefore, the antenna system shared by the two types of signals can be realized through the simple switch device, the circuit area and the production cost are further reduced under the condition that the two types of signals are guaranteed to be transmitted without mutual interference, and the actual production and use requirements are met.

In a possible embodiment, each of the first DPDT, the second DPDT and the third DPDT includes a first P port, a second P port, a first T port and a second T port; the DP4T comprises a first P port, a second P port, a first T port, a second T port, a third T port and a fourth T port;

a first T port of the first DPDT is connected to a first P port of the second DPDT; a first T port of the second DPDT is connected to a first antenna of the K antennas; a second T port of the first DPDT is connected to a first P port of the third DPDT; a first T port of the third DPDT is connected to a second antenna of the K antennas; a second T port of the DP4T is connected to a second P port of the second DPDT; a second T port of the second DPDT is connected to a third antenna of the K antennas; a third T port of the DP4T is connected to a second P port of the third DPDT; and a second T port of the third DPDT is connected to a fourth antenna of the K antennas.

In the embodiment of the application, the corresponding ports of the existing double-pole double-throw switch and the existing double-pole four-throw switch can be connected with 4 antennas in the antenna system, so that the first-class signal and the second-class signal can be transmitted by selecting the antennas through the conduction condition among the ports of the switches. Therefore, the first-class signals and the second-class signals can share one antenna system, and on the premise that the number of the antennas is greatly reduced, the first-class signals and the second-class signals can be further ensured to be capable of selecting any antenna in the shared antenna system to carry out signal transmission, and mutual interference does not exist.

In one possible implementation, the communication device further comprises radio frequency circuitry comprising a first class of circuitry and a second class of circuitry; the first class of circuits comprises a first main set transmitting circuit, a first main set receiving circuit and a first diversity receiving circuit; the second class of circuits comprises a second main set transmitting circuit, a second main set receiving circuit and a second diversity receiving circuit; the N combiners comprise a first combiner and a second combiner; the first diversity receiving circuit is connected with the second input end of the first combiner; the first master set transmitting circuit and the first master set receiving circuit are connected with the second input end of the second combiner; the second diversity receiving circuit is connected with a first P port of the DP4T; the second master set transmit circuit and the second master set receive circuit are connected to a second P-port of the DP 4T.

In an embodiment of the present application, the communication device may further include radio frequency circuitry, which may specifically include LTE primary set transmit circuitry (e.g., first primary set transmit circuitry), LTE primary set receive circuitry (e.g., first primary set receive circuitry), and LTE diversity receive circuitry (e.g., first diversity receive circuitry), and NR primary set transmit circuitry (e.g., second primary set transmit circuitry), NR primary set receive circuitry (e.g., second primary set receive circuitry), and NR diversity receive circuitry (e.g., second diversity receive circuitry). And the circuits are respectively connected with corresponding ports of the double-pole double-throw switch and the double-pole four-throw switch, so that an LTE system and an NR system can share one antenna system, an LTE controller in the LTE system can select an antenna in the antenna system through the switches for signal transmission, and an NR controller in the NR system can alternately transmit SRS signals and receive corresponding signals on a plurality of antennas of the antenna system. Meanwhile, the antenna switching of the LTE and the SRS round transmission of the NR are not interfered with each other through the two combiners, and the use experience of a user is guaranteed.

In one possible embodiment, the first class of signals comprises a first dominant set of transmitted signals, a first dominant set of received signals, and a first diversity received signal; the second class of signals comprises a second primary set transmit signal, a second primary set receive signal, and a second diversity receive signal; the first input ends of the first and second combiners are high-frequency ends, and the second input ends of the first and second combiners are low-frequency ends.

In the embodiment of the present application, the first type of signals may include LTE primary set transmission signals, LTE primary set reception signals, and LTE diversity reception signals, and the second type of signals may include NR primary set transmission signals, NR primary set reception signals, and NR diversity reception signals, for example. The LTE main set transmission signal (for example, SRS signal), the LTE main set reception signal, and the LTE diversity reception signal may pass through a low frequency end of the combiner, and the NR main set transmission signal, the NR main set reception signal, and the NR diversity reception signal may pass through a high frequency end of the combiner. Therefore, the embodiment of the application can realize that the signal transmission of LTE and the SRS polling of NR share one antenna system, and through the arrangement of the two combiners, mutual interference is avoided, and the use experience of users is ensured.

In a possible embodiment, the switching device further comprises: a first single pole double throw switch SPDT and a second SPDT; the first SPDT and the second SPDT respectively comprise a P port, a first T port and a second T port; wherein a first T port of the DP4T is connected with a first T port of the first SPDT; the P port of the first SPDT is connected with the first input end of the first combiner; the output end of the first combiner is connected with a first P port of the first DPDT; a fourth T port of the DP4T is connected with the first T port of the second SPDT; the P port of the second SPDT is connected with the first input end of the second combiner; and the output end of the second combiner is connected with the second P port of the first DPDT.

In this embodiment, the switch device may further include 2 single-pole double-throw switches, where the 2 single-pole double-throw switches are respectively used to connect corresponding ports in the two combiners and the two-pole double-throw switch, so that when a first type of signal occupies an antenna for transmission, if a second type of signal needs to be transmitted through the same antenna at this time, the second type of signal may be transmitted to the same antenna by turning on the corresponding ports in the double-pole double-throw switch and the single-pole double-throw switch, and through the combiner connected to the second type of switch, and the turning-on line of the first type of signal. Therefore, the first-type signal and the second-type signal can be transmitted by selecting any antenna in a shared antenna system, mutual interference does not exist, the number of combiners is reduced, and therefore circuit layout area and production cost are reduced.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a second T port, a second P port in the first DPDT to be conducted with a first T port, a first P port in the second DPDT to be conducted with a first T port, a second P port in the second DPDT to be conducted with a second T port, a first P port in the third DPDT to be conducted with a first T port, and a second P port in the third DPDT to be conducted with a second T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the first antenna, the first diversity receiving circuit is connected to the second antenna, the second T port in the DP4T is connected to the third antenna, and the third T port in the DP4T is connected to the fourth antenna; wherein the first primary set transmit circuit is configured to transmit the first primary set transmit signal via the first antenna; the first primary set receiving circuit is configured to receive the first primary set received signal via the first antenna; the first diversity receive circuit is configured to receive the first diversity receive signal via the second antenna.

In this embodiment of the present application, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in a cross-conduction state (for example, the first P port and the second T port in the first DPDT are conducted, and the second P port and the first T port are conducted), the second DPDT is controlled to be in a through state (for example, the first P port and the first T port in the second DPDT are conducted, and the second P port and the second T port are conducted), and the third DPDT is controlled to be in a through state (for example, the first P port and the first T port in the third DPDT are conducted, and the second P port and the second T port are conducted), based on the connection relationship among the switches, the antennas, and the circuits, the first main set transmitting circuit and the first main set receiving circuit may be connected to the first antenna, and the first diversity receiving circuit may be connected to the second antenna. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a second T port, a second P port in the first DPDT to be conducted with a first T port, a first P port in the second DPDT to be conducted with a first T port, a second P port in the second DPDT to be conducted with a second T port, a first P port in the third DPDT to be conducted with a second T port, and a second P port in the third DPDT to be conducted with a first T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the first antenna, the first diversity receiving circuit is connected to the fourth antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the second antenna; wherein the first primary set transmit circuit is configured to transmit the first primary set transmit signal via the first antenna;

the first dominant set receiving circuit is configured to receive the first dominant set receiving signal through the first antenna; the first diversity receive circuit is configured to receive the first diversity receive signal through the fourth antenna.

In this embodiment of the present application, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in a cross-conducting state, the second DPDT is controlled to be in a through state, and the third DPDT is controlled to be in a cross-conducting state, based on the connection relationships among the switches, the antennas, and the circuits, the first main set transmitting circuit and the first main set receiving circuit may be connected to the first antenna, and the first diversity receiving circuit may be connected to the fourth antenna. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a first T port, a second P port in the first DPDT to be conducted with a second T port, a first P port in the second DPDT to be conducted with a first T port, a second P port in the second DPDT to be conducted with a second T port, a first P port in the third DPDT to be conducted with a first T port, and a second P port in the third DPDT to be conducted with a second T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the second antenna, the first diversity receiving circuit is connected to the first antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the fourth antenna; wherein the first primary set transmit circuit is configured to transmit the first primary set transmit signal via the second antenna; the first dominant set receiving circuit is configured to receive the first dominant set receiving signal through the second antenna; the first diversity receive circuit is configured to receive the first diversity receive signal through the first antenna.

In this embodiment, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in the through state, the second DPDT is controlled to be in the through state, and the third DPDT is controlled to be in the through state, the first main set transmitting circuit and the first main set receiving circuit may be connected to the second antenna and the first diversity receiving circuit may be connected to the first antenna based on the connection relationships among the switches, the antennas, and the circuits. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a first T port, a second P port in the first DPDT to be conducted with a second T port, a first P port in the second DPDT to be conducted with a second T port, a second P port in the second DPDT to be conducted with a first T port, a first P port in the third DPDT to be conducted with a first T port, and a second P port in the third DPDT to be conducted with a second T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the second antenna, the first diversity receiving circuit is connected to the third antenna, the second T port in the DP4T is connected to the first antenna, and the third T port in the DP4T is connected to the fourth antenna; wherein the first primary set transmit circuit is configured to transmit the first primary set transmit signal via the second antenna; the first primary set receiving circuit is configured to receive the first primary set received signal via the second antenna; the first diversity receiving circuit is configured to receive the first diversity receiving signal through the third antenna.

In this embodiment of the present application, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in the through state, the second DPDT is controlled to be in the cross-conducting state, and the third DPDT is controlled to be in the through state, the first main set transmitting circuit and the first main set receiving circuit may be connected to the second antenna and the first diversity receiving circuit may be connected to the third antenna based on the connection relationships among the switches, the antennas, and the circuits. Therefore, according to the embodiment of the application, antenna selection and first-class signal transmission among a plurality of antennas can be realized by connecting a plurality of simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a second T port, a second P port in the first DPDT to be conducted with a first T port, a first P port in the second DPDT to be conducted with a second T port, a second P port in the second DPDT to be conducted with a first T port, a first P port in the third DPDT to be conducted with a first T port, and a second P port in the third DPDT to be conducted with a second T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the third antenna, the first diversity receiving circuit is connected to the second antenna, the second T port in the DP4T is connected to the first antenna, and the third T port in the DP4T is connected to the fourth antenna; wherein the first dominant set transmitting circuit is configured to transmit the first dominant set transmitting signal through the third antenna; the first dominant set receiving circuit is configured to receive the first dominant set receiving signal through the third antenna; the first diversity receive circuit is configured to receive the first diversity receive signal via the second antenna.

In this embodiment of the present application, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in the cross conduction state, the second DPDT is controlled to be in the cross conduction state, and the third DPDT is controlled to be in the through state, the first main set transmitting circuit and the first main set receiving circuit may be connected to the third antenna and the first diversity receiving circuit may be connected to the second antenna based on the connection relationships among the switches, the antennas, and the circuits. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a second T port, a second P port in the first DPDT to be conducted with a first T port, a first P port in the second DPDT to be conducted with a second T port, a second P port in the second DPDT to be conducted with a first T port, a first P port in the third DPDT to be conducted with a second T port, and a second P port in the third DPDT to be conducted with a first T port; at this time, the first active set transmitting circuit and the first active set receiving circuit are respectively connected to the third antenna, the first diversity receiving circuit is connected to the fourth antenna, the second T port of the DP4T is connected to the first antenna, and the third T port of the DP4T is connected to the second antenna; wherein the first dominant set transmitting circuit is configured to transmit the first dominant set transmitting signal through the third antenna; the first dominant set receiving circuit is configured to receive the first dominant set receiving signal through the third antenna; the first diversity receive circuit is configured to receive the first diversity receive signal through the fourth antenna.

In this embodiment, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in a cross-conduction state, the second DPDT is controlled to be in a cross-conduction state, and the third DPDT is controlled to be in a cross-conduction state, based on the connection relationships among the switches, the antennas, and the circuits, the first main set transmitting circuit and the first main set receiving circuit may be connected to the third antenna, and the first diversity receiving circuit may be connected to the fourth antenna. Therefore, according to the embodiment of the application, antenna selection and first-class signal transmission among a plurality of antennas can be realized by connecting a plurality of simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a first T port, a second P port in the first DPDT to be conducted with a second T port, a first P port in the second DPDT to be conducted with a first T port, a second P port in the second DPDT to be conducted with a second T port, a first P port in the third DPDT to be conducted with a second T port, and a second P port in the third DPDT to be conducted with a first T port; at this time, the first active set transmitting circuit and the first active set receiving circuit are respectively connected to the fourth antenna, the first diversity receiving circuit is connected to the first antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the second antenna; wherein the first primary set transmit circuit is configured to transmit the first primary set transmit signal via the fourth antenna; the first primary set receiving circuit is configured to receive the first primary set received signal via the fourth antenna; the first diversity receive circuit is configured to receive the first diversity receive signal through the first antenna.

In this embodiment, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in the through state, the second DPDT is controlled to be in the through state, and the third DPDT is controlled to be in the cross-conduction state, based on the connection relationships among the switches, the antennas, and the circuits, the first main set transmitting circuit and the first main set receiving circuit may be connected to the fourth antenna, and the first diversity receiving circuit may be connected to the first antenna. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, the switching device is specifically configured to: controlling a first P port in the first DPDT to be conducted with a first T port, a second P port in the first DPDT to be conducted with a second T port, a first P port in the second DPDT to be conducted with a second T port, a second P port in the second DPDT to be conducted with a first T port, a first P port in the third DPDT to be conducted with a second T port, and a second P port in the third DPDT to be conducted with a first T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the fourth antenna, the first diversity receiving circuit is connected to the third antenna, the second T port in the DP4T is connected to the first antenna, and the third T port in the DP4T is connected to the second antenna; wherein the first dominant set transmitting circuit is configured to transmit the first dominant set transmitting signal through the fourth antenna; the first primary set receiving circuit is configured to receive the first primary set received signal via the fourth antenna; the first diversity receiving circuit is configured to receive the first diversity receiving signal through the third antenna.

In this embodiment of the present application, the first main set transmitting circuit, the first main set receiving circuit, and the first diversity receiving circuit may be respectively connected to corresponding antennas through respective conducting states of the three double-pole double-throw switches, so as to respectively transmit and receive corresponding signals through the corresponding antennas. For example, when the first DPDT is controlled to be in the through state, the second DPDT is controlled to be in the cross-conduction state, and the third DPDT is controlled to be in the cross-conduction state, based on the connection relationships among the switches, the antennas, and the circuits, the first main set transmitting circuit and the first main set receiving circuit may be connected to the fourth antenna, and the first diversity receiving circuit may be connected to the third antenna. Therefore, according to the embodiment of the application, the antenna selection and the first-class signal transmission among the multiple antennas can be realized by connecting the multiple simple switches between the radio frequency circuit and the antennas and controlling the conducting state of each switch.

In a possible embodiment, K is equal to 4, and the switching device is particularly adapted to: when the second-class signal needs to be transmitted through the jth antenna, if the jth antenna is connected to the first diversity receiving circuit, controlling the P port of the first SPDT to be conducted with the first T port of the first SPDT, and controlling the first P port of the DP4T to be conducted with the first T port of the DP4T, so as to connect the second diversity receiving circuit to the jth antenna; or, the second P port of the DP4T is controlled to be connected to the first T port of the DP4T, and the second master set transmitting circuit and the second master set receiving circuit are connected to the jth antenna; if the jth antenna is connected to the first main set transmitting circuit and the first main set receiving circuit, controlling the P port of the second SPDT to be conducted with the first T port of the second SPDT, and controlling the first P port of the DP4T to be conducted with the fourth T port of the DP4T, so as to connect the second diversity receiving circuit to the jth antenna; or, the second P port of the DP4T is controlled to be conducted with the fourth T port of the DP4T, and the second main set transmitting circuit and the second main set receiving circuit are connected to the jth antenna; the second primary set transmitting circuit is configured to transmit the second primary set transmitting signal through the jth antenna; the second primary set receiving circuit is configured to receive the second primary set received signal through the jth antenna; the second diversity receiving circuit is configured to receive the second diversity receive signal through the jth antenna.

In the embodiment of the present application, as described above, when the circuit corresponding to the first type signal is connected to any antenna in the antenna system, if the second type signal needs to be transmitted through the same antenna, the ports corresponding to the double-pole-four-throw switch and the single-pole-double-throw switch may be turned on, and the second type signal is turned on to the same antenna through the combiner and the conducting line of the first type signal for transmission. Therefore, when any antenna is selected for signal transmission in LTE, the NR controller can be ensured to transmit SRS on 4 antennas in turn.

In a possible embodiment, K is equal to 4, and the switching device is particularly configured to: when the second type of signals need to be transmitted through a j ' th antenna, if the j ' th antenna is connected with the second T port of the DP4T, controlling the conduction of the first P port of the DP4T and the second T port of the DP4T, and connecting the second diversity receiving circuit to the j ' th antenna; or, controlling the second P port of the DP4T to be conducted with the second T port of the DP4T, and connecting the second main set transmitting circuit and the second main set receiving circuit to the jth antenna; if the j 'th antenna is connected with the third T port of the DP4T, controlling the conduction of the first P port of the DP4T and the third T port of the DP4T, and connecting the second diversity receiving circuit to the j' th antenna; or, controlling a second P port of the DP4T to be conducted with a third T port of the DP4T, and connecting the second main set transmitting circuit and the second main set receiving circuit to the jth antenna; the second dominant set transmitting circuit is configured to transmit the second dominant set transmitting signal through the jth antenna; the second dominant set receiving circuit is configured to receive the second dominant set receiving signal through the jth antenna; the second diversity receiving circuit is configured to receive the second diversity received signal through the jth antenna.

In the embodiment of the present application, as described above, when the circuit corresponding to the first type signal is connected to any antenna in the antenna system, if the second type signal needs to be transmitted through another antenna, the port connected to the corresponding double-pole double-throw switch in the double-pole four-throw switch may be turned on, and the corresponding double-pole double-throw switch is a double-pole double-throw switch connected to the another antenna, so that the second type signal may be turned on to the another antenna for transmission. Therefore, when any antenna is selected for signal transmission in LTE, the NR controller can be ensured to transmit SRS on 4 antennas in turn.

In a possible implementation manner, the K antennas are all antennas supporting a long term evolution LTE frequency band and a 5G new air interface NR frequency band.

Correspondingly, the first master set transmitting circuit is an LTE master set transmitting circuit, the first master set receiving circuit is an LTE master set receiving circuit, and the first diversity receiving circuit is an LTE diversity receiving circuit; the second main set transmitting circuit is an NR main set transmitting circuit, the second main set receiving circuit is an NR main set receiving circuit, and the second diversity receiving circuit is an NR diversity receiving circuit; the first primary set transmitting signal is an LTE primary set transmitting signal, the first primary set receiving signal is an LTE primary set receiving signal, and the first diversity receiving signal is an LTE diversity receiving signal; the second main set transmission signal is an NR main set transmission signal (or sounding reference signal SRS), the second main set reception signal is an NR main set reception signal, and the second diversity reception signal is an NR diversity reception signal.

In the embodiment of the application, the antennas are antennas supporting an LTE frequency band and a 5G NR frequency band, so that the LTE system and the NR system can share one antenna system, and it is ensured that LTE signals can be antenna-selected and transmitted among the antennas, and that NR SRS can be alternately transmitted among the antennas, thereby greatly reducing the number of antennas, and reducing the circuit area and the production cost.

In a second aspect, an embodiment of the present application provides a communication method, which is applied to a communication device, where the communication device includes an antenna system and a switch apparatus, where the antenna system includes K antennas; the switch device comprises N + X first ports, K + N second ports and N combiners; k second ports of the K + N second ports are respectively connected with the K antennas one by one; n second ports of the K + N second ports are respectively connected with the first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with N first ports of the N + X first ports one by one; n, X and K are integers which are more than or equal to 1; the method comprises the following steps: conducting an ith first port of the N first ports and a jth second port of the K second ports through the switch device, and transmitting a first-class signal through a corresponding jth antenna; i is an integer greater than or equal to 1 and less than or equal to N, j is an integer greater than or equal to 1 and less than or equal to K; by the switching device, when a second-class signal needs to be transmitted through the jth antenna, conducting an s-th first port of the X first ports and an i-th second port of the N second ports, conducting the s-th first port to the jth second port through an i-th combiner connected with the i-th second port and the i-th first port connected with the i-th combiner, and transmitting the second-class signal through the jth antenna; s is an integer greater than or equal to 1 and less than or equal to X.

In one possible embodiment, the method further comprises: by the switching device, when the second-class signal needs to be transmitted through a j ' th antenna, conducting an s-th first port of the X first ports and a j ' th second port of the K second ports, and transmitting the second-class signal through a corresponding j ' th antenna; j 'is an integer greater than or equal to 1 and less than or equal to K, j is not equal to j'.

In one possible embodiment, the switching device comprises a first double pole double throw switch DPDT, a second DPDT, a third DPDT and a double pole four throw switch DP4T; the N first ports comprise two P ports of a first DPDT; the X first ports comprise two P ports in the DP4T; the K second ports include two T ports in the second DPDT and two T ports in the third DPDT; the N second ports include two T ports of the DP 4T.

In a possible embodiment, each of the first DPDT, the second DPDT and the third DPDT includes a first P port, a second P port, a first T port and a second T port; the DP4T comprises a first P port, a second P port, a first T port, a second T port, a third T port and a fourth T port; a first T port of the first DPDT is connected to a first P port of the second DPDT; a first T port of the second DPDT is connected to a first antenna of the K antennas; a second T port of the first DPDT is connected to a first P port of the third DPDT; a first T port of the third DPDT is connected to a second antenna of the K antennas; a second T port of the DP4T is connected to a second P port of the second DPDT; a second T port of the second DPDT is connected to a third antenna of the K antennas; a third T port of the DP4T is connected to a second P port of the third DPDT; and a second T port of the third DPDT is connected to a fourth antenna of the K antennas.

In one possible embodiment, the first class of signals includes a first primary set of transmitted signals, a first primary set of received signals, and a first diversity received signal; the second type of signals comprises a second dominant set transmission signal, a second dominant set reception signal and a second diversity reception signal; the first input ends of the first combiner and the second combiner are high-frequency ends, and the second input ends of the first combiner and the second combiner are low-frequency ends.

In a possible embodiment, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port in the first DPDT to be connected to a second T port, a second P port in the first DPDT to be connected to a first T port, a first P port in the second DPDT to be connected to a first T port, a second P port in the second DPDT to be connected to a second T port, a first P port in the third DPDT to be connected to a first T port, and a second P port in the third DPDT to be connected to a second T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the first antenna, the first diversity receiving circuit is connected to the second antenna, the second T port in the DP4T is connected to the third antenna, and the third T port in the DP4T is connected to the fourth antenna; transmitting, by the first dominant set transmit circuit, the first dominant set transmit signal via the first root antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the first root antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the second antenna.

In a possible implementation manner, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port of the first DPDT to be connected to a second T port, a second P port of the first DPDT to be connected to a first T port, a first P port of the second DPDT to be connected to a first T port, a second P port of the second DPDT to be connected to a second T port, a first P port of the third DPDT to be connected to a second T port, and a second P port of the third DPDT to be connected to a first T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the first antenna, the first diversity receiving circuit is connected to the fourth antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the second antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the first root antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the first root antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the fourth antenna.

In a possible implementation manner, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port in the first DPDT to be in conduction with a first T port, a second P port in the first DPDT to be in conduction with a second T port, a first P port in the second DPDT to be in conduction with a first T port, a second P port in the second DPDT to be in conduction with a second T port, a first P port in the third DPDT to be in conduction with a first T port, and a second P port in the third DPDT to be in conduction with a second T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the second antenna, the first diversity receiving circuit is connected to the first antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the fourth antenna; transmitting, by the first dominant set transmit circuit, the first dominant set transmit signal via the second antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the second antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the first root antenna.

In a possible embodiment, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port in the first DPDT to be in conduction with a first T port, a second P port in the first DPDT to be in conduction with a second T port, a first P port in the second DPDT to be in conduction with a second T port, a second P port in the second DPDT to be in conduction with a first T port, a first P port in the third DPDT to be in conduction with a first T port, and a second P port in the third DPDT to be in conduction with a second T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the second antenna, the first diversity receiving circuit is connected to the third antenna, the second T port of the DP4T is connected to the first antenna, and the third T port of the DP4T is connected to the fourth antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the second antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the second antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the third antenna.

In a possible implementation manner, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port of the first DPDT to be connected to a second T port, a second P port of the first DPDT to be connected to a first T port, a first P port of the second DPDT to be connected to a second T port, a second P port of the second DPDT to be connected to a first T port, a first P port of the third DPDT to be connected to a first T port, and a second P port of the third DPDT to be connected to a second T port; at this time, the first master integrated transmitting circuit and the first master integrated receiving circuit are respectively connected to the third antenna, the first diversity receiving circuit is connected to the second antenna, the second T port of the DP4T is connected to the first antenna, and the third T port of the DP4T is connected to the fourth antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the third antenna; receiving, by the first dominant set receive circuit, the first dominant set receive signal via the third antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the second antenna.

In a possible implementation manner, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port of the first DPDT to be connected to a second T port, a second P port of the first DPDT to be connected to a first T port, a first P port of the second DPDT to be connected to a second T port, a second P port of the second DPDT to be connected to a first T port, a first P port of the third DPDT to be connected to a second T port, and a second P port of the third DPDT to be connected to a first T port; at this time, the first master set transmitting circuit and the first master set receiving circuit are respectively connected to the third antenna, the first diversity receiving circuit is connected to the fourth antenna, the second T port in the DP4T is connected to the first antenna, and the third T port in the DP4T is connected to the second antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the third antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the third antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the fourth antenna.

In a possible implementation manner, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port in the first DPDT to be in conduction with a first T port, a second P port in the first DPDT to be in conduction with a second T port, a first P port in the second DPDT to be in conduction with a first T port, a second P port in the second DPDT to be in conduction with a second T port, a first P port in the third DPDT to be in conduction with a second T port, and a second P port in the third DPDT to be in conduction with a first T port; at this time, the first active set transmitting circuit and the first active set receiving circuit are respectively connected to the fourth antenna, the first diversity receiving circuit is connected to the first antenna, the second T port of the DP4T is connected to the third antenna, and the third T port of the DP4T is connected to the second antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the fourth antenna; receiving, by the first dominant set reception circuitry, the first dominant set reception signal via the fourth antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the first root antenna.

In a possible embodiment, the turning on, by the switching device, an ith first port of the N first ports and a jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna includes: controlling, by the switch device, a first P port of the first DPDT to be connected to a first T port, a second P port of the first DPDT to be connected to a second T port, a first P port of the second DPDT to be connected to a second T port, a second P port of the second DPDT to be connected to a first T port, a first P port of the third DPDT to be connected to a second T port, and a second P port of the third DPDT to be connected to the first T port; at this time, the first active set transmitting circuit and the first active set receiving circuit are respectively connected to the fourth antenna, the first diversity receiving circuit is connected to the third antenna, the second T port of the DP4T is connected to the first antenna, and the third T port of the DP4T is connected to the second antenna; transmitting, by the first primary set transmit circuit, the first primary set transmit signal via the fourth antenna; receiving, by the first primary set receive circuit, the first primary set receive signal via the fourth antenna; receiving, by the first diversity receive circuit, the first diversity receive signal via the third antenna.

In one possible embodiment, K is equal to 4; the switching device, when a second type of signal needs to be transmitted through the jth antenna, turns on an s-th first port of the X first ports and an i-th second port of the N second ports, turns on the s-th first port to the jth second port via an i-th combiner connected to the i-th second port and the i-th first port connected to the i-th combiner, and transmits the second type of signal through the jth antenna, including: through the switch device, when the second-class signal needs to be transmitted through the jth antenna, if the jth antenna is connected with the first diversity receiving circuit, controlling the P port of the first SPDT to be conducted with the first T port of the first SPDT, and controlling the first P port of the DP4T to be conducted with the first T port of the DP4T, so as to connect the second diversity receiving circuit to the jth antenna; or, the second P port of the DP4T is controlled to be connected to the first T port of the DP4T, and the second master set transmitting circuit and the second master set receiving circuit are connected to the jth antenna; if the jth antenna is connected to the first master set transmitter circuit and the first master set receiver circuit, controlling the P port of the second SPDT to be conducted with the first T port of the second SPDT, controlling the first P port of the DP4T to be conducted with the fourth T port of the DP4T, and connecting the second diversity receiver circuit to the jth antenna; or, the second P port of the DP4T is controlled to be conducted with the fourth T port of the DP4T, and the second main set transmitting circuit and the second main set receiving circuit are connected to the jth antenna; transmitting, by the second primary set transmit circuit, the second primary set transmit signal via the jth antenna; receiving, by the second primary set receive circuit, the second primary set receive signal via the jth antenna; receiving, by the second diversity receive circuit, the second diversity receive signal via the jth antenna.

In one possible embodiment, K is equal to 4; when the second-type signal needs to be transmitted through a j ' th antenna by the switch device, turning on an s-th first port of the X first ports and a j ' th second port of the K second ports, and transmitting the second-type signal through a corresponding j ' th antenna, includes: through the switch device, when the second-class signal needs to be transmitted through a j ' th antenna, if the j ' th antenna is connected with the second T port of the DP4T, controlling the conduction of the first P port of the DP4T and the second T port of the DP4T, and connecting the second diversity receiving circuit to the j ' th antenna; or, controlling the second P port of the DP4T to be conducted with the second T port of the DP4T, and connecting the second main set transmitting circuit and the second main set receiving circuit to the jth antenna; if the j 'th antenna is connected with the third T port of the DP4T, controlling the conduction of the first P port of the DP4T and the third T port of the DP4T, and connecting the second diversity receiving circuit to the j' th antenna; or controlling the second P port of the DP4T to be connected to the third T port of the DP4T, and connecting the second master set transmitting circuit and the second master set receiving circuit to the jth antenna; transmitting, by the second primary set transmit circuit, the second primary set transmit signal via the jth antenna; receiving, by the second dominant set receive circuit, the second dominant set receive signal via the jth antenna; receiving, by the second diversity receive circuit, the second diversity receive signal via the jth antenna.

In a third aspect, an embodiment of the present application provides a switch device, which is applied to a communication device, where the switch device includes a first combiner, a second combiner, a first SPDT, a second SPDT, a first DPDT, a second DPDT, a third DPDT, and a UPVT; the first combiner and the second combiner respectively comprise a first input end, a second input end and an output end; the first and second SPDTs each comprise a P port and 2T ports; the first DPDT, the second DPDT, and the third DPDT each include 2P ports and 2T ports; the UPVT comprises U P ports and V T ports, wherein U and V are integers which are more than or equal to 1; a P port of the first SPDT is connected to a first input end of the first combiner, and an output end of the first combiner is connected to a first P port of the first DPDT; the P port of the second SPDT is connected to the first input end of the second combiner, and the output end of the second combiner is connected to the second P port of the first DPDT; a first T port of the first DPDT is connected to a first P port of the second DPDT, and a second T port of the first DPDT is connected to a first P port of the third DPDT; a second P port of the second DPDT is connected to a second T port of the UPVT, and a second P port of the third DPDT is connected to a third T port of the UPVT; the first T port of the UPVT is connected with the first T port of the first SPDT, and the fourth T port of the UPVT is connected with the first T port of the second SPDT.

In one possible implementation, the communication device includes an antenna system including 4 antennas; a first T port of the second DPDT is connected with a first antenna; a first T port of the third DPDT is connected with a second antenna; a second T port of the second DPDT is connected with a third antenna; and a second T port of the third DPDT is connected to a fourth antenna.

In one possible embodiment, the UPVT is DP4T, and the DP4T includes 2P ports and 4T ports.

In one possible embodiment, the UPVT is 4P4T, the 4P4T comprising 4P ports and 4T ports; the switching device further comprises a DP4T, the DP4T comprising 2P ports and 4T ports; wherein the first P port of the DP4T is connected to the second T port of the first SPDT, and the second P port of the DP4T is connected to the second T port of the second SPDT.

In a fourth aspect, an embodiment of the present application provides a radio frequency system, which is applied to a communication device, and the radio frequency system may include a radio frequency circuit, an antenna system, and the switch device described in any of the first aspects, and is configured to implement the functions related to the communication method flow described in any of the second aspects.

In a fifth aspect, an embodiment of the present application provides a communication device, which may include a radio frequency circuit, an antenna system, and the switch apparatus described in any of the above first aspects, and is configured to implement the functions related to the communication method flow described in any of the above second aspects.

In a sixth aspect, the present application provides a communication device, where the communication device includes a processor, and the processor is configured to support the communication device to implement corresponding functions in the communication method provided in the second aspect. The communication device may also include a memory, coupled to the processor, that retains program instructions and data necessary for the communication device. The terminal device may also include a communication interface for the communication device to communicate with other devices or a communication network.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the flow of the communication method in any one of the foregoing second aspects is implemented. The processor may be one or more processors, among others.

In an eighth aspect, the present application provides a computer program, where the computer program includes instructions, and when the computer program is executed by a computer, the computer can execute the flow of the communication method in any one of the second aspects.

In a ninth aspect, an embodiment of the present application provides a chip system, where the chip system may include the switch apparatus described in any one of the above first aspects, and is configured to implement the functions related to the communication method flow described in any one of the above second aspects. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the tuning method. The chip system may be constituted by a chip, or may include a chip and other discrete devices.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the background of the present application will be described below.

Fig. 1 is a schematic diagram of a multi-antenna switching circuit of LTE.

Fig. 2 is a schematic diagram of a NR multi-antenna switching circuit.

Fig. 3 is a diagram of an exemplary allocation of terminal antennas.

Fig. 4a is a circuit diagram of an LTE and NR shared antenna.

Fig. 4b is an equivalent circuit schematic diagram of an LTE and NR shared antenna provided in an embodiment of the present application.

Fig. 5a is a circuit schematic diagram of another LTE and NR common antenna.

Fig. 5b is a schematic diagram of the circuit connection in a switched state.

Fig. 5c is a schematic diagram of the circuit connection in another switching state.

Fig. 6 is a functional block diagram of a communication device according to an embodiment of the present application.

Fig. 7 is a block diagram of a software structure of a communication device according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a switching device 001 according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of another switching device provided in the embodiment of the present application.

Fig. 10a to 10h are schematic diagrams of a set of antenna selection circuits provided in an embodiment of the present application.

Fig. 11a to fig. 11d are schematic circuit diagrams of a set of SRS rounds provided by an embodiment of the present application.

Fig. 12a is a schematic diagram of an application scenario provided in an embodiment of the present application.

Fig. 12b is a schematic diagram of another application scenario provided in an embodiment of the present application.

Fig. 13 is a schematic diagram of an equivalent circuit provided in an embodiment of the present application.

Fig. 14 a-14 d are schematic diagrams of antenna selection of a set of equivalent circuits provided in an embodiment of the present application.

Fig. 15 is a schematic structural diagram of another switching device provided in the embodiment of the present application.

Fig. 16 is a schematic structural diagram of another switching device provided in the embodiment of the present application.

Fig. 17 is a flowchart illustrating a communication method according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

The terms "first," "second," "third," and "fourth," as well as "first," "second," "third," and "fourth," etc., in the description and claims of the invention and in the drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "T-port" and "P-port" in the present specification and claims are only used to distinguish the contacts that can be conducted on two sides of such a switch, such as a double-pole-four-throw switch, a double-pole-double-throw switch, or a single-pole-double-throw switch, rather than to describe a specific port of the switch, and in some possible embodiments, the "T-port" may be used as the "P-port" and the "P-port" may also be used as the "T-port". The ports such as "a", "B", "C", and "D" and the ports such as "1", "2", "3", and "4" in the switches of the drawings of the present invention are the same as those described above, and will not be described again here. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another at a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

First, some terms in the present application are explained so as to be easily understood by those skilled in the art.

(1) Multiple Antenna Selection (MAS) techniques. As shown in fig. 1, in order to avoid the situation that when a user holds a mobile phone across a screen, the antenna of the mobile phone is "held" by the user, thereby affecting the user experience, a communication device such as a mobile phone may be provided with 4 antennas, namely, a lower left antenna (ANT 0), a lower right antenna (ANT 2), an upper left antenna (ANT 1), and an upper right antenna (ANT 3), so that the LTE main diversity signal may be selected among the 4 antennas through a Double Pole Double Throw (DPDT) and a plurality of Single Pole Double Throw (SPDT) switches as shown in fig. 1. For example, when a user operates a game on a landscape screen, if the ANT1, ANT2, and ANT3 antennas are held by both hands of the user and the signals are poor, then the antenna ANT0 with the better signals can be selected by the DPDT, the SPDT1, and the SPDT2 to transmit LTE master Transmit (TX) signals, so that data transmission can be performed on the antenna with the best signal quality at any time, and the user experience is improved.

(2) Sounding Reference Signal (SRS), which is alternatively referred to as an uplink sounding signal. The fifth generation mobile communication technology (5 th-generation, 5G) and the like support beamforming (beamforming) technology, and can transmit directionally to a terminal. To transmit directionally, the base station first detects the location of the terminal and the quality of the transmission path, so that the resources of the base station are more accurately allocated to each terminal. The terminal transmits an SRS signal, which is one of the methods for the base station to detect the terminal position and the channel quality.

As described above, the functions of the SRS may simply include the following points:

a. the method is used for estimating the quality of the uplink channel, and thus is used for uplink scheduling, uplink synchronization (TA), uplink wave velocity management and the like.

b. In the case of reciprocity of uplink and downlink channels in Time Division Duplexing (TDD), the downlink channel quality is estimated using channel symmetry, such as weight calculation in a downlink Multiple Input Multiple Output (MIMO) antenna system. The MIMO technology uses a plurality of transmitting antennas and receiving antennas at a transmitting end and a receiving end, respectively, so that signals are transmitted and received through the plurality of antennas at the transmitting end and the receiving end, thereby improving communication quality, and the like, and will not be described in detail herein.

In order to implement the above functions, SRS transmission is first implemented, where SRS transmission refers to that a terminal transmits SRS signals in turn on different physical antennas. The SRS capability defined by the current protocol is mainly three of 1T2R,1T4R and 2T 4R. Thus, the hardware requirements for SRS round-robin are mainly that the transmitted signal can be switched between different antennas. It should be noted that, the more the number of antennas capable of participating in sending SRS signals is, the more accurate the channel estimation is, and the higher the rate that can be obtained is; if only transmitting on fixed antennas, other antenna information is lost, the antennas are not fully utilized, and it is difficult to obtain the highest rate.

A 5G terminal is generally equipped with multiple transmit-receive antennas, and currently, a mainstream 5G mobile phone and Customer Premise Equipment (CPE) and the like all employ 2 transmit antennas and 4 receive antennas (i.e., 2T 4R). If the multiple antennas of the 5G terminal are fully utilized to report the channel information in turn (namely, SRS transmission is performed in turn), the information acquired by the base station can be more comprehensive, and more accurate data transmission can be performed. The main mode of SRS round can be as follows:

1T1R, only fixed on one antenna and feeding back SRS signals to the base station, namely, the SRS forwarding is not supported.

1T2R, the terminal transmits SRS signals on 2 antennas in turn, and 1 antenna is selected at a time to transmit

1T4R, the terminal transmits SRS signals on 4 antennas in turn, and 1 antenna is selected for transmission at one time.

2T4R, the terminal transmits SRS signals on 4 antennas in a rotating mode, and 2 antennas are selected at a time to transmit. Among them, a terminal in a non-independent Networking (NSA) mode usually employs 1T4R, and a terminal in an independent networking (SA) mode usually employs 2T4R, and so on, which will not be described in detail herein.

As shown in fig. 2, the specification of SRS round transmission that can be realized by the NR multi-antenna switching circuit is 1T4R, and the round transmission of NR TX to 4 antennas ANT4, ANT5, ANT6, and ANT7, that is, the round transmission of SRS signals to 4 antennas can be realized by switching a plurality of double pole four throw switches (DP 4T) such as DP4T1 and DP4T2 shown in fig. 2.

It should be noted that fig. 1 and fig. 2 are only exemplary to illustrate one possible LTE multi-antenna switching circuit and NR multi-antenna switching circuit, and in some possible embodiments, more or fewer components or even different components may be included than those in fig. 1 or fig. 2, and the present application is not limited in this respect.

As described above, when the LTE main diversity signal needs to be switched between 4 antennas and the NR SRS signal needs to be transmitted between 4 antennas in turn, a total of 8 physical antennas are required, so that the circuit layout area and the production cost are increased. Further, referring to fig. 3, fig. 3 is a diagram illustrating an exemplary allocation of terminal antennas. As shown in fig. 3, with the current mobile phone terminal having higher communication specifications, especially under the new application scenarios such as the increase of frequency bands in the 5G era and wireless fidelity (WIFI), 5G, etc., the corresponding antenna types and numbers are also increasing (for example, the GPS antenna, the WIFI antenna, the sub6G-1 antenna, the sub6G-2 antenna, the sub6G-3 antenna, etc. in fig. 3). Thus, the layout stack design and the production cost of the mobile phone terminal are challenged, and if the antenna is added without restriction, the circuit layout area and the production cost are greatly increased. In this case, the antenna multiplexing technology (or referred to as antenna sharing technology) is proposed to effectively solve the problem of a large number of physical antennas at present.

In summary, to facilitate understanding of the embodiments of the present application, the technical problems to be solved by the present application are further analyzed and presented. In the prior art, the common antenna technology for LTE and NR includes various technical solutions, and the following two general solutions are exemplified below.

The first scheme is as follows: referring to fig. 4a, fig. 4a is a circuit diagram of an LTE and NR common antenna. As shown in fig. 4a, in the conventional LTE and NR antenna sharing scheme, a diplexer (diplexer), or so-called combiner, is used to combine the LTE and NR antennas. Each antenna of ANT1, ANT2, ANT3 and ANT4 is connected with a combiner, so that LTE and NR are independent of each other and can transmit signals through any one of 4 antennas. The combiner can combine signals with different frequencies of NR and LTE, so that the two signals with different frequencies can be transmitted or received simultaneously by using the same antenna. Among them, the LTE generally walks the low frequency channel of the combiner, and the NR generally walks the high frequency channel of the combiner.

Further, please refer to fig. 4b, where fig. 4b is a schematic diagram of an equivalent circuit of an LTE and NR shared antenna according to an embodiment of the present application. As shown in fig. 4b, the switches DP4T1, DP4T2, SPDT1, SPDT2, DPDT, etc. in fig. 4a can be implemented as one 6P8T switch. Obviously, as shown in fig. 4b, LTETX and LTE Primary Receiver (PRX) may both select antenna ANT1, ANT2, ANT3, or ANT4 to transmit signals through conduction between port a and port 2, port 4, port 6, or port 8 in 6P 8T; LTE Diversity Receive (DRX) may select an antenna ANT1, ANT2, ANT3, or ANT4 to transmit a signal through conduction between port B and port 2, port 4, port 6, or port 8 in 6P 8T; NRTX and NRPRX may both select antenna ANT1, ANT2, ANT3, or ANT4 to transmit signals through conduction between port C and port 1, port 3, port 5, or port 7 in 6P 8T; NRDRX may select an antenna ANT1, ANT2, ANT3, or ANT4 to transmit a signal through conduction between port D and port 1, port 3, port 5, or port 7 in 6P 8T; the NR mimo rx may select the antenna ANT1, ANT2, ANT3, or ANT4 to transmit a signal through conduction between the port E and the port 1, port 3, port 5, or port 7 in the 6P 8T; the NR mimo rx may select the antenna ANT1, ANT2, ANT3, or ANT4 to transmit a signal through conduction between the port F and the port 1, port 3, port 5, or port 7 in the 6P 8T.

As described above, for example, when the user is playing a game on the landscape screen, the antenna signal of ANT1 alone is currently good due to holding the mobile phone on the landscape screen, and the SRS is currently being transmitted to ANT1 in turn, that is, when both LTE TX and NR TX require signal transmission through ANT1. Signal transmission can be performed simultaneously via the ANT1 by turning on the port a and the port 2, and turning on the port C and the port 1, through the combiner 1 connected to the port 1 and the port 2. Therefore, the situation that one party occupies the antenna and the other party cannot transmit signals through the same antenna is avoided, namely, the situation that the work is interrupted mutually due to the antenna switching is avoided, the mutual independence between the LTE and the NR is realized, the antenna switching of the LTE and the SRS sending of the NR are not influenced mutually under the situation that the LTE and the NR share the antenna, and the normal work of the two parties is ensured.

The first scheme has the following defects: as shown in fig. 4a and 4b, after the LTE multi-antenna circuit and the NR multi-antenna circuit are combined, 4 combiners are required for 4 antennas. Although half of the number of antennas is directly reduced, the additionally added multiple combiners also greatly increase the circuit layout area and the production cost of communication equipment such as mobile phones, which are inconsistent with the original purpose of reducing the circuit layout area and the production cost through an antenna sharing technology, and cannot meet the actual requirements.

Scheme II: referring to fig. 5a, fig. 5a is a circuit diagram of another LTE and NR common antenna. As shown in fig. 5a, antenna multiplexing can also be achieved by connecting LTE and NR to four antennas through a 4P4T switch circuit. Referring to fig. 5b, fig. 5b is a circuit connection diagram in a switch state. As shown in FIG. 5B, the switch state of 4P4T is turned on at 1-A/2-B/3-C/4-D by default. At this time, the LTE TX/PRX and NR MIMO PRX work at ANT0 through the combiner 1; the LTE DRX and the NR MIMO DRX work at an ANT1 through a combiner 2; NR TX/PRX works at ANT2; NR DRX operates at ANT3.

The second scheme has the following defects: scheme two also realizes that LTE and NR share four antennas, and also reduces the quantity of combiners and switches compared with scheme one. However, SRS round and LTE antenna switching in the second scheme may interrupt each other, resulting in performance loss. For example, referring to fig. 5c, fig. 5c is a circuit connection diagram in another switch state. Referring to fig. 5b and 5C, when NR transmits SRS to ANT0, it is necessary to switch the 3-C conduction from the default state to the 3-a conduction state, so that NR TX can transmit SRS through ANT 0. However, as shown in fig. 5C, since NR performs antenna switching at SRS transmission, LTE TX is turned on from 1-a in the default state, passively switched to 1-C, and passively performs signal transmission through ANT2. Therefore, LTE not only needs to perform TX-blanking during handover to cause performance loss, but also further affects user experience if the antenna signal quality of ANT2 is poor.

In summary, in the first solution in the prior art, although the LTE and NR shared antennas can be better implemented, and are independent from each other and do not affect each other, and the antenna switching of LTE and the SRS transmission of NR are guaranteed to be normally performed, the circuit is complex, and the problems of increased circuit area and increased production cost are brought; in the second scheme, although the LTE and NR shared antenna can be realized by simply using two combiners and one 4P4T switch, the circuit is simple, interference exists between LTE and NR, SRS transmission and LTE antenna switching are interrupted mutually, and performance loss is caused. Thus, the problems of the working performance and the production cost faced by the LTE and NR common antennas are not really solved in the prior art. Therefore, in order to solve the problem that the current shared antenna technology of LTE and NR does not meet the actual service requirements, the technical problems to be actually solved by the present invention include the following aspects: based on the existing communication equipment, by means of more reasonable switch selection and circuit layout, the LTE and the NR can be enabled to carry out normal antenna switching and SRS transmission on the basis of sharing the antenna, and circuit area and production cost are further reduced.

Referring to fig. 6, fig. 6 is a functional block diagram of a communication device according to an embodiment of the present disclosure. The following specifically describes an embodiment of the present application by taking the communication device 100 as an example. It should be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the communication apparatus 100. In some possible embodiments, the communication device 100 may have more or fewer components than shown in the figures, or combine certain components, or split certain components, or a different arrangement of components. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

The communication device 100 may include: the mobile terminal includes a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, a mobile communication module 150, an antenna system 151, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller may be, among other things, a neural center and a command center of the communication device 100. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose-input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

It should be understood that the connection relationship between the modules according to the embodiment of the present invention is only illustrative, and does not limit the structure of the communication device 100. In other embodiments of the present application, the communication device 100 may also adopt different interface connection manners or a combination of a plurality of interface connection manners in the above embodiments.

The charging management module 140 is configured to receive a charging input from a charger. The charger can be a wireless charger or a wired charger.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, and the like.

The wireless communication function of the communication device 100 may be implemented by the antenna system 151, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like. The mobile communication module 150 may include a radio frequency circuit, specifically, an LTE primary set transmitting circuit, an LTE primary set receiving circuit, an LTE diversity receiving circuit, an NR primary set transmitting circuit, an NR primary set receiving circuit, an NR diversity receiving circuit, and the like, and may further include a switch device. Wherein the switching device may comprise a plurality of ports. The antenna system 151 may include multiple antennas, and in some possible embodiments, may specifically include 4 antennas supporting a 4G LTE frequency band and a 5G NR frequency band. Optionally, in some embodiments of the present application, the radio frequency circuit and antenna system 151 may be connected to a switch device, so that the LTE system and the NR system may share the 4 antennas. Optionally, by turning on and off the ports in the switch device, the LTE controller may select a better antenna among the 4 antennas to transmit and receive signals, and by turning on and off the ports in the switch device, the NR SRS signal may be transmitted on the 4 antennas in turn (i.e., 1T4R or 2T4R is implemented).

The communication device 100 implements display functions via the GPU, the display screen 194, and the application processor, among other things. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the communication device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The communication device 100 may implement a camera function via the ISP, camera 193, video codec, GPU, display screen 194, application processor, etc. In some embodiments, the communication device 100 may include one or more cameras 193.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and contrast of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to be converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. The camera 193 may be located on the front side of the communication device, such as above the touch screen, or may be located in other positions, such as the back side of the communication device. In addition, the camera 193 may further include a camera, such as an infrared camera or other cameras, for capturing images required for face recognition. The camera for acquiring the image required by the face recognition is generally located on the front side of the communication device, for example, above the touch screen, and may also be located at other positions, for example, on the back side of the communication device. In some embodiments, the communication device 100 may include other cameras. The communication device may further comprise a dot matrix emitter (not shown) for emitting light.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the communication device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The communication device 100 may support one or more video codecs. In this way, the communication device 100 can play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor, which processes input information quickly by referring to a biological neural network structure, for example, by referring to a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent awareness of the communication device 100 can be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the communication device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The processor 110 executes various functional applications of the communication device 100 and data processing by executing instructions stored in the internal memory 121. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, applications (such as a communication function, a face recognition function, a video recording function, a video playing function, a photographing function, an image processing function, and the like) required by at least one function, and the like. The storage data area may store data created during use of the communication device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like.

The communication device 100 may implement audio functions via the audio module 170, speaker 170A, receiver 170B, microphone 170C, headset interface 170D, and application processor, among others. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals.

The earphone interface 170D is used to connect a wired earphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile communication equipment platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used for sensing a pressure signal, and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A can be of a variety of types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like.

The gyro sensor 180B may be used to determine the motion attitude of the communication device 100. In some embodiments, the angular velocity of the communication device 100 about three axes (i.e., x, y, and z axes) may be determined by the gyroscope sensor 180B.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode.

The ambient light sensor 180L is used to sense the ambient light level. The communication device 100 may adaptively adjust the brightness of the display screen 194 based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust the white balance when taking a picture.

The fingerprint sensor 180H is used to collect a fingerprint. The communication device 100 can utilize the collected fingerprint characteristics to implement fingerprint unlocking, access application lock, fingerprint photographing, fingerprint incoming call answering, and the like. The fingerprint sensor 180H may be disposed below the touch screen, the communication device 100 may receive a touch operation of a user on the touch screen in an area corresponding to the fingerprint sensor, and the communication device 100 may collect fingerprint information of a finger of the user in response to the touch operation, so as to implement a related function.

The temperature sensor 180J is used to detect temperature. In some embodiments, the communication device 100 implements a temperature handling strategy using the temperature detected by the temperature sensor 180J.

The touch sensor 180K is also referred to as a "touch panel". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided via the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the communication device 100, different from the position of the display screen 194.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The communication device 100 may receive a key input, and generate a key signal input related to user setting and function control of the communication device 100.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the communication apparatus 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. In some embodiments, the communication device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the communication device 100 and cannot be separated from the communication device 100.

The communication device 100 may be a smart phone, a smart wearable device, a tablet computer, a laptop computer, or the like, which has the above functions, and this is not limited in this embodiment.

Referring to fig. 7, fig. 7 is a block diagram of a software structure of a communication device according to an embodiment of the present disclosure.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android (Android) system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom. It should be understood that the software structure shown in fig. 7 is only an illustrative example, and in some possible embodiments, the communication device 100 may have more or less structures than those shown in the figure, and so on, which is not specifically limited in the embodiment of the present application.

The application layer may include a series of application packages.

As shown in fig. 7, the application package may include applications (also referred to as applications) such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc. The method can further comprise related communication application related to the application, and the communication application can be used for realizing LTE antenna switching and NR SRS transmission in turn on the basis of an LTE and NR shared antenna without mutual interference. Therefore, on the one hand, the data transmission is guaranteed to be always carried out through the antenna with better signals through the LTE antenna switching, the user experience is guaranteed, on the other hand, the SRS sending is guaranteed to be carried out reliably, and the base station is guaranteed to estimate the channel quality of the communication equipment.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 7, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

Content providers are used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and answered, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide the communication functions of the communication device 100. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to notify download completion, message alerts, etc. The notification manager may also be a notification that appears in a graphical or scrollbar text form in a status bar at the top of the system, such as a notification of a running application in the background, or may be a notification that appears on the screen in a dialog interface. Such as prompting for text messages in the status bar, sounding a prompt tone, vibrating the communication device, flashing an indicator light, etc.

The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules, such as: surface managers (surface managers), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc. The video formats referred to in this application may be, for example, RM, RMVB, MOV, MTV, AVI, AMV, DMV, FLV, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software, and at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a switching device 001 according to an embodiment of the present disclosure. As shown in fig. 8, the switching device 1001 may be applied to a communication apparatus (e.g., the communication apparatus 100 shown in fig. 6), which may include an antenna system 002 as shown in fig. 8. Alternatively, the antenna system 002 and the switching device 001 may be located in the antenna system 151 in the communication system 100 shown in fig. 6 described above. The antenna system 002 may include K antennas, such as antennas 002a, 002b, 002c and 002d shown in fig. 8, and the antennas 002a, 002b, 002c and 002d may be antennas supporting LTE bands and 5G NR bands. As shown in fig. 8, the switching device 001 may include N + X first ports, K + N second ports, and N combiners; wherein N, X and K are integers which are more than or equal to 1. As shown in fig. 8, K second ports of the K + N second ports are respectively connected to the K antennas one by one; n second ports of the K + N second ports are respectively connected with the first input ends of the N combiners one by one; the respective output ends of the N combiners are respectively connected with the N first ports of the N + X first ports one by one.

As shown in fig. 8, the switch device 001 may be configured to turn on an ith first port of the N first ports and a jth second port of the K second ports, so as to transmit a first type of signal (e.g., an LTE active set transmit signal, etc.) through a jth antenna connected to the jth second port. Wherein i is an integer greater than or equal to 1 and less than or equal to N, and j is an integer greater than or equal to 1 and less than or equal to K.

Moreover, when a second type of signal (e.g., an NR main set transmission signal, or a sounding reference signal SRS, etc.) also needs to be transmitted through the jth antenna (e.g., SRS is transmitted to the jth antenna), an s-th first port of the X first ports of the switch device and an i-th second port of the N second ports may be turned on, and the s-th first port may be turned on to the j-th second port via an i-th combiner connected to the i-th second port and the i-th first port connected to the i-th combiner, so as to transmit the second type of signal through the jth antenna. Wherein s is an integer greater than or equal to 1 and less than or equal to X.

In addition, when the second type of signal needs to be transmitted through the jth antenna (for example, when the SRS is sent to the jth antenna in turn), the s-th first port of the X first ports of the switching device and the jth second port of the K second ports may be turned on, and the second type of signal is transmitted through the corresponding jth antenna; j 'is an integer greater than or equal to 1 and less than or equal to K, j is not equal to j'.

Therefore, the antenna system is ensured to be shared by two types of signals, namely, under the condition that the number of the antennas is reduced, both the two sides can select any antenna in the shared antenna system to transmit signals, the requirement that when the first type of signals occupy the antenna to transmit is met, the second type of signals can select the same antenna or other antennas to transmit through the switch device according to actual requirements, the transmission of the other side cannot be interrupted because one side occupies the antenna, and mutual interference does not exist.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another switching device according to an embodiment of the present disclosure. As shown in fig. 9, the communication device may further include a radio frequency circuit, wherein the radio frequency circuit may include a first type circuit and a second type circuit. Specifically, the first class of circuits may include a first master set transmitting circuit (e.g., LTE TX1 in fig. 9), a first master set receiving circuit (e.g., LTE PRX1 in fig. 9), and a first diversity receiving circuit (e.g., LTE DRX1 in fig. 9), where, as shown in fig. 9, the LTE TX1 and the LTE PRX1 may be combined through a duplexer (not shown in the figure). Specifically, the second class of circuits may include a second main set transmitting circuit (e.g., NR TX2 in fig. 9), a second main set receiving circuit (e.g., NR PRX2 in fig. 9), and a second diversity receiving circuit (e.g., NR DRX2 in fig. 9), where, as shown in fig. 9, NR TX2 and NR PRX2 may also be combined by a duplexer (not shown in the figure). Optionally, as shown in fig. 9, the radio frequency circuitry may further include NR MIMO PRX2 and NR MIMO DRX2. Optionally, each of the LTE TX1 and NR TX2 may include a power amplifier, each of the LTE PRX1, LTE DRX1, NR PRX2, NR DRX2, NR MIMO PRX2, and NR MIMO DRX2 may include a low noise amplifier, and so on. Optionally, each of the above circuits may be connected to a radio frequency transceiver (not shown), which is not described in detail herein.

Please refer to fig. 9 together with the description of the corresponding embodiments of fig. 1 and fig. 2, it should be noted that, in general, both LTE and NR require 4 antennas, that is, the antenna system in the embodiment of the present application may include 4 antennas (that is, K may be equal to 4), and specifically may include ANT1, ANT2, ANT3, and ANT4 shown in fig. 9. As shown in fig. 9, the switch device may specifically include 2 single-pole double-throw switches (SPDT 101 and SPDT 102), 2 combiners (combiner 201 and combiner 202), 3 double-pole double-throw switches (DPDT 301, DPDT302, and DPDT 303), and one double-pole four-throw switch (DP 4T 401). Wherein, each of the

SPDTs

101 and 102 may include one P port (e.g., port a in the SPDT101 and SPDT102 shown in fig. 9) and 2T ports (e.g., port 1 and port 2 in the SPDT101 and SPDT102 shown in fig. 9); each of DPDT301, DPDT302, and DPDT303 may include 2P ports (e.g., port a and port B of DPDT301, DPDT302, and DPDT303 shown in fig. 9) and 2T ports (e.g., port 1 and port 2 of DPDT301, DPDT302, and DPDT303 shown in fig. 9); the DP4T401 may include 2P ports (e.g., port a and port B in the DP4T401 of fig. 9) and 4T ports (e.g., port 1, port 2, port 3, and port 4 in the DP4T401 of fig. 9). Further, as shown in fig. 9, each of the combiner 201 and the combiner 202 may include two input terminals, a high frequency terminal (i.e., a first input terminal in the embodiment corresponding to fig. 8) and a low frequency terminal (i.e., a second input terminal in the embodiment corresponding to fig. 8).

Referring to fig. 8 and 9 together, the N combiners may include a combiner 201 and a combiner 202; the N first ports may include a port a and a port B of the DPDT 301; the X first ports may include port a and port B of DP4T 401; the K second ports may include port 1 and port 2 of the DPDT302, and port 1 and port 2 of the DPDT 303; the N second ports may include port 1 and port 4 of DP4T 401.

As shown in fig. 9, the NR MIMO DRX2 is connected to the port 2 of the SPDT101, the port a of the SPDT101 is connected to the high frequency end of the combiner 201, the LTE DRX1 is connected to the low frequency end of the combiner 201 (it can be understood that the frequency band of LTE is often lower than that of NR), the output end of the combiner 201 is connected to the port a of the DPDT301, the port 1 of the DPDT301 is connected to the port a of the DPDT302, and the port 1 of the DPDT302 is connected to the antenna ANT1.

As shown in fig. 9, the NR MIMO PRX2 is connected to port 2 of the SPDT102, port a of the SPDT102 is connected to the high frequency end of the combiner 202, LTE TX1/PRX1 is connected to the low frequency end of the combiner 202, the output end of the combiner 202 is connected to port B of the DPDT301, port 2 of the DPDT301 is connected to port a of the DPDT303, and port 1 of the DPDT303 is connected to the antenna ANT2.

As shown in fig. 9, NR DRX2 is connected to port a of DP4T401, port 1 of DP4T401 is connected to port 1 of SPDT101, port 2 of DP4T401 is connected to port B of DPDT302, and port 2 of DPDT302 is connected to antenna ANT3.

As shown in fig. 9, NR TX2/PRX2 is connected to port B of DP4T, port 4 of DP4T is connected to port 1 of SPDT102, port 3 of DP4T401 is connected to port B of DPDT303, and port 2 of DPDT303 is connected to antenna ANT4.

In the following, the functions of each device will be described in detail by combining the above brief introduction of each device in the switching device and the circuit connection relationship between the rf circuit and each device:

SPDT101: the port a can only be conducted with one of the port 1 and the port 2, and can be used for conducting the port a and the port 1 when SRS is transmitted (i.e. when NR TX2 transmits a signal), at this time, a path between the port a and the port 2 is disconnected, and the NR MIMO DRX2 does not work, so that a channel is assigned to SRS and a corresponding antenna is transmitted.

The SPDT102: the port a can only be conducted with one of the port 1 and the port 2, and can be used for conducting the port a and the port 1 when SRS is transmitted in turn, at this time, a path between the port a and the port 2 is disconnected, and the NR MIMO PRX2 does not work, so that a channel is assigned to the SRS and a corresponding antenna is transmitted.

A combiner 201: the signal regions of different frequencies of NR and LTE are combined, so that the signals of two different frequencies can be transmitted by using the same antenna (i.e. NR and LTE transmit or receive signals simultaneously by using the same antenna). As described above, among others, the NR MIMO DRX2 goes through the high frequency channel in the combiner 201, and the LTE DRX1 goes through the low frequency channel.

The combiner 202: and combining the signal areas of the NR and LTE with different frequencies, so that the signals of the two different frequencies can be transmitted by using the same antenna. Simultaneously transmit or receive. As described above, among others, the NR MIMO PRX2 path combiner 202 has a high frequency channel, and the LTE TX1/PRX1 path has a low frequency channel.

DPDT301: there are two states of through and cross conduction. The direct conduction state is A-1\ B-2 conduction, and the cross conduction state is A-2/B-1 conduction. As shown in fig. 9, the DPDT301 may be controlled by a TAS ctrl (e.g., a processor or a controller connected to the switching device, or a portion thereof, etc.) to implement a TAS switching function, such that LTE signals are switched between the upper antennas (ANT 1, ANT 3) and the lower antennas (ANT 2, ANT 4).

DPDT302: there are two states of through and cross conduction. The direct conduction state is A-1\ B-2 conduction, and the cross conduction state is A-2/B-1 conduction. As shown in fig. 9, the DPDT302 can be controlled by MAS _ ctrl _1 to implement a MAS switching function, so that LTE signals can be switched between the left and right antennas (ANT 1, ANT 3) of the upper antenna.

DPDT303: there are two states of through and cross conduction. The direct conduction state is A-1\ B-2 conduction, and the cross conduction state is A-2/B-1 conduction. As shown in fig. 9, the MAS switching function can be realized by controlling the DPDT303 with MAS _ ctrl _2, and LTE signals can be switched between the left and right antennas (ANT 2, ANT 3) of the lower antenna.

DP4T401: ports a and B may be in communication with any two different ports between

ports

1, 2, 3 and 4. DP4T401 mainly implements connection of NR primary diversity (i.e., NR TX2/PRX2, NR DRX 2) with antennas, and enables NR TX2 to do SRS round over antennas ANT1, ANT3, ANT2, and ANT4 through DP4T 401.

Based on the description of the corresponding embodiments of fig. 8 and 9, how the switching device provided by the present application implements an LTE and NR shared antenna without interfering with each other will be further described in detail below through the details of various situations. Referring to fig. 10a to 10h, fig. 10a to 10h are schematic diagrams of a set of antenna selection circuits according to an embodiment of the present application.

(1) As shown in FIG. 10a, in the default state, the LTE controller controls DPDT301 to be turned through (A-1/B-2 conducting), DPDT302 to be turned through (A-1/B-2 conducting), DPDT303 to be turned through (A-1/B-2 conducting), and SPDT101 to be turned on A-2 (i.e. port A in SPDT101 is turned on with port 2), and SPDT102 to be turned on A-2. As shown in fig. 10a, at this time, the LTE DRX1 is connected to the antenna ANT1 via the low frequency end and the output end of the combiner 201, the port a of the DPDT301, the port 1, the port a of the DPDT302, and the port 1, that is, the LTE diversity operates at ANT1, and receives the LTE diversity receive signal through ANT1; the LTE TX1/PRX1 is connected to the antenna ANT2 via the low frequency end and the output end of the combiner 202, the port B of the DPDT301, the port 2, the port a of the DPDT303, and the port 1, that is, the LTE master set operates at ANT2, and transmits an LTE master set transmission signal and receives an LTE master set reception signal through ANT2; the NR MIMO DRX2 is connected to the antenna ANT1 via the port 2 and the port a of the SPDT101, the high frequency end and the output end of the combiner 201, the port a of the DPDT301, the port 1, and the port a and the port 1 of the DPDT302, that is, the NR MIMO DRX2 operates at the ANT1; the NR MIMO PRX2 is connected to the antenna ANT2 via the port 2 and the port a of the SPDT102, the high frequency end and the output end of the combiner 202, the port B of the DPDT301, the port 2, and the port a and the port 1 of the DPDT303, that is, the NR MIMO PRX2 operates at the ANT2.

As described above, in the LTE antenna selection state shown in fig. 10a, if NR 1t4r SRS is initiated at this time, it is possible to realize this by controlling DP4T 401. Referring to fig. 11a to 11d, fig. 11a to 11d are schematic circuit diagrams of a set of SRS rounds provided by an embodiment of the present application.

SRS1: as shown in fig. 11a, DP4T401 is controlled to be on B-3 (i.e. port B of DP4T401 is on with port 3), and at this time, NR TX2 is connected to antenna ANT4 via port B of DP4T, port 3, port B of DPDT303, and port 2. As shown in fig. 11a, SRS1 is now transmitted on ANT4.

SRS2: as shown in fig. 11B, DP4T401 is controlled to be on B-2, and NR TX2 is connected to antenna ANT3 through port B and port 2 of DP4T and port B and port 2 of DPDT 302. As shown in fig. 11b, SRS2 is now transmitted on ANT3. It should be noted that, referring to fig. 11a and fig. 11B, if the initial state or the history state of the DP4T401 is a-2 conduction, the original a-2 conduction can be directly covered by B-2 conduction, or as shown in fig. 11B, the DP can be switched to a-3 conduction, and so on. It can be understood that, since the NR adopts the TDD operation mode, its transmission and reception are not performed simultaneously, and when the NR TX2 needs to occupy a channel to perform SRS transmission through a corresponding antenna, the NR DRX2 may not operate and make way.

SRS3: as shown in fig. 11c, DP4T401 is controlled to be turned on at B-4, and at the same time, SPDT102 is controlled to be turned on at a-1, and at this time, NR TX2 is connected to antenna ANT2 via port B of DP4T, port 4, port 1 and port a of SPDT102, the high frequency end and output end of combiner 202, port B of DPDT301, port 2, and port a and port 1 of DPDT 303. As shown in fig. 11c, SRS3 is now transmitted on ANT2. As described above, since NR adopts the TDD operation mode, its transmission and reception are not performed simultaneously, and when NR TX2 needs to occupy a channel to perform SRS transmission through a corresponding antenna, NR MIMO PRX2 may not operate and yield the channel.

And SRS4: as shown in fig. 11d, DP4T401 is controlled to be on B-1, and SPDT101 is controlled to be on a-1 at the same time, at this time, NR TX2 is connected to antenna ANT1 via port B of DP4T, port 1 of SPDT101, port a, the high frequency end and the output end of combiner 201, port a of DPDT301, port 1, port a of DPDT302, and port 1. SRS4 is now transmitted on ANT1 as shown in fig. 11 d. As described above, since NR adopts the TDD operation mode, its transmission and reception are not performed simultaneously, and when NR TX2 needs to occupy a channel to perform SRS transmission through a corresponding antenna, NR MIMO DRX2 may not operate and yield the channel.

As described above, in the default state, that is, in the case where the DPDT301, the DPDT302, and the DPDT303 are through, B-3 → B-2 → B-4 → B-1 may be alternately turned on by controlling the DP4T401, so that the NR controller may alternately perform SRS round of 1T4R on the antennas ANT4 → ANT3 → ANT2 → ANT1. Optionally, a developer may also change an antenna sequence used in the SRS round-robin transmission by changing the conduction sequence of DP4T, for example, if the DP4T is controlled to conduct B-1 → B-2 → B-3 → B-4 in turn, the NR controller may perform the SRS round-robin transmission of 1T4R on the antennas ANT1 → ANT3 → ANT4 → ANT2 in turn, and so on, which is not specifically limited in this embodiment of the application, and the following fig. 10B to fig. 10h are the same and are not described again.

(2) As shown in fig. 10b, when the antenna switching occurs in LTE, for example, please refer to fig. 12a, fig. 12a is a schematic diagram of an application scenario provided in this embodiment of the present application, and as shown in fig. 12a, when a user holds a mobile phone across a screen to watch a video, LTE antenna switching may be performed in a case where signals of the antennas ANT2 and ANT4 are extremely weak due to hand occlusion. As shown in fig. 12a, the LTE master set signal may be selected to be transmitted through the ANT1 with the better signal among ANT1 and ANT3, so as to ensure the user experience. As shown in FIG. 10B, at this time, the LTE controller can control DPDT301 to cross-conduct (A-2/B-1 conducting), DPDT302 to pass through (A-1/B-2 conducting), DPDT303 to pass through (A-1/B-2 conducting), and SPDT101 to be A-2 conducting and SPDT102 to be A-2 conducting. As shown in fig. 10B, at this time, the LTE TX1/PRX1 is connected to the antenna ANT1 via the low frequency end and the output end of the combiner 202, the port B of the DPDT301, the port 1, the port a of the DPDT302, and the port 1, that is, the LTE master set operates at ANT1, and transmits a LTE master set transmit signal and receives a LTE master set receive signal through ANT1; the LTE DRX1 is connected to the antenna ANT2 via the low frequency end and the output end of the combiner 201, the port a of the DPDT301, the port 2, the port a of the DPDT303, and the port 1, that is, the LTE diversity operates at ANT2, and receives LTE diversity reception signals through ANT2; the NR MIMO PRX2 is connected to the antenna ANT1 via the port 2 and the port a of the SPDT102, the high frequency end and the output end of the combiner 202, the port B of the DPDT301, the port 1, the port a of the DPDT302, and the port 1, that is, the NR MIMO PRX2 operates at the ANT1; the NR MIMO DRX2 is connected to the antenna ANT2 via the port 2 of the SPDT101, the port a, the high frequency end of the combiner 201, the output end, the port a of the DPDT301, the port 2, the port a of the DPDT303, and the port 1, that is, the NR MIMO DRX2 operates at the ANT2.

As described above, in the LTE antenna selection state shown in fig. 10b, similarly, if the 1t4r SRS for NR is initiated at this time, the NR can be also initiated by controlling the DP4T 401. For specific control, reference may be made to the corresponding description in the default state of the above-mentioned (1), and only a brief summary is made below: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can perform SRS round of 1T4R on the antenna ANT4 → ANT3 → ANT1 → ANT2 in turn, and so on, which will not be described herein.

(3) As shown in fig. 10c, on the premise that the LTE TX1 is guaranteed to transmit a signal on ANT1, that is, on the premise that the DPDT301 is controlled to be in cross conduction (a-2/B-1 conduction) and the DPDT302 is controlled to be in through conduction (a-1/B-2 conduction), the DPDT303 may be switched to a cross conduction state (a-2/B-1 conduction), at this time, both LTE TX1/PRX1 and NR MIMO PRX2 operate at ANT1, and both LTE DRX1 and NR MIMO DRX2 operate at ANT4.

Similarly, in the LTE antenna selection state shown in fig. 10c, if NR 1t4r SRS is initiated at this time, DP4T401 may be controlled to implement this. The specific control can refer to the corresponding description in the default state of (1) above, and the following is only briefly summarized: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can take turns of SRS transmission of 1T4R on the antenna ANT2 → ANT3 → ANT1 → ANT4 in turn, and so on, which will not be described herein.

(4) As shown in fig. 10d, if the signal of the antenna ANT2 is strong at this time, in order to enable the LTE TX1 to transmit a signal through the ANT2, the states in (2) and (3) above may be directly switched back to the default state in (1), and the DPDT302 may be switched to the cross-conducting state (a-2/B-1 conducting) on the premise of controlling the DPDT301 to pass through and the DPDT303 to pass through. As shown in fig. 10d, in this case, LTE TX1/PRX1 and NR MIMO PRX2 operate at ANT2, and LTE DRX1 and NR MIMO DRX2 operate at ANT3.

Similarly, in the LTE antenna selection state shown in fig. 10d, if NR 1t4r SRS is initiated at this time, DP4T401 may be controlled to implement this. For specific control, reference may be made to the corresponding description in the default state of the above-mentioned (1), and only a brief summary is made below: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can take turns of SRS transmission of 1T4R on the antenna ANT4 → ANT1 → ANT2 → ANT3 in turn, and so on, which will not be described herein.

(5) As shown in fig. 10e, when the LTE needs to perform antenna switching again, for example, please refer to fig. 12b, fig. 12b is a schematic diagram of another application scenario provided in this embodiment of the present application, and as shown in fig. 12b, when a user holds a mobile phone across a screen to operate a game, LTE antenna switching may be performed under the condition that signals of the antennas ANT1 and ANT2 are extremely weak due to hand shielding. As shown in fig. 12b, an ANT3 with a better signal among ANTs 3 and ANT4 may be selected to transmit the LTE master set signal, thereby ensuring the user experience. As shown in FIG. 10e, at this time, the LTE controller can control DPDT301 to cross-conduct (A-2/B-1 conducting), DPDT302 to cross-conduct (A-2/B-1 conducting), DPDT303 to pass through (A-1/B-2 conducting), and SPDT101 to be A-2 conducting and SPDT102 to be A-2 conducting. As shown in fig. 10e, at this time, LTE TX1/PRX1 and NR MIMO PRX2 both operate at ANT3, and LTE DRX1 and NR MIMO DRX2 both operate at ANT2.

Similarly, in the LTE antenna selection state shown in fig. 10e, if the NR 1t4r SRS is initiated at this time, the method can also be implemented by controlling the DP4T 401. The specific control can refer to the corresponding description in the default state of (1) above, and the following is only briefly summarized: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can take turns of SRS transmission of 1T4R on the antenna ANT4 → ANT1 → ANT3 → ANT2 in turn, and so on, which will not be described herein.

(6) As shown in fig. 10f, on the premise that the LTE TX1 is guaranteed to transmit a signal on ANT1, that is, on the premise that the DPDT301 is controlled to be turned on cross (a-2/B-1 is turned on) and the DPDT302 is controlled to be turned on cross (a-2/B-1 is turned on), the DPDT303 may be switched to a cross-on state (a-2/B-1 is turned on), at this time, both LTE TX1/PRX1 and NR MIMO PRX2 operate at ANT3, and both LTE DRX1 and NR DRX MIMO 2 operate at ANT4.

Similarly, in the LTE antenna selection state shown in fig. 10f, if NR 1t4r SRS is initiated at this time, the NR may be controlled to be DP4T 401. The specific control can refer to the corresponding description in the default state of (1) above, and the following is only briefly summarized: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can take turns of SRS transmission of 1T4R on the antenna ANT2 → ANT1 → ANT3 → ANT4 in turn, and so on, which will not be described herein.

(7) As shown in fig. 10g, if it is detected that the signal of the antenna ANT4 is strong at this time, in order to enable the LTE TX1 to transmit the signal through the ANT4 and ensure the user experience, the LTE controller may switch to the ANT4 to transmit the LTE master signal. As shown in FIG. 10g, at this time the LTE controller can control DPDT301 to pass through (A-1/B-2 on), DPDT302 to pass through (A-1/B-2 on), DPDT303 to cross-conduct (A-2/B-1 on), and SPDT101 to be A-2 on and SPDT102 to be A-2 on. As shown in fig. 10e, both LTE TX1/PRX1 and NR MIMO PRX2 operate at ANT4, and both LTE DRX1 and NR MIMO DRX2 operate at ANT1.

Similarly, in the LTE antenna selection state shown in fig. 10g, if the NR 1t4r SRS is initiated at this time, the operation can be realized by controlling the DP4T 401. The specific control can refer to the corresponding description in the default state of (1) above, and the following is only briefly summarized: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can take turns of SRS transmission of 1T4R on the antenna ANT2 → ANT3 → ANT4 → ANT1 in turn, and so on, which will not be described herein.

(8) As shown in fig. 10h, on the premise that the LTE TX1 is ensured to transmit a signal on ANT4, that is, on the premise that the DPDT301 is controlled to be through (a-1/B-2 turned on) and the DPDT303 is controlled to be cross-turned on (a-2/B-1 turned on), the DPDT302 may be switched to a cross-turned on state (a-2/B-1 turned on), at this time, LTE TX1/PRX1 and NR MIMO PRX2 both operate at ANT4, and LTE DRX1 and NR MIMO DRX2 both operate at ANT3.

Similarly, in the LTE antenna selection state shown in fig. 10h, if NR 1t4r SRS is initiated at this time, DP4T401 may be controlled to implement this. The specific control can refer to the corresponding description in the default state of (1) above, and the following is only briefly summarized: b-3 → B-2 → B-4 → B-1 can be turned on by controlling DP4T401 in turn, so that the NR controller can perform SRS round of 1T4R on the antenna ANT2 → ANT1 → ANT4 → ANT3 in turn, and so on, which will not be described herein.

To sum up, through more reasonable device selection and circuit connection, the embodiment of the application can realize that when LTE performs any antenna switching, that is, when LTE selects any antenna through each switch to perform signal transmission, NR SRS transmission is not interrupted to LTE main diversity reception, and LTE does not need to perform TX-blanking, and two sets of LTE and NR systems realize non-conflict coexistence. Meanwhile, as shown in table 1 below, compared with the first solution in the prior art, in the embodiment of the present application, after multiplexing of the LTE four-antenna and the NR four-antenna is implemented, only 2 combiners and 1 DP4T are used in a circuit, so that the total area of a circuit device layout is greatly reduced, and the manufacturing cost is reduced accordingly.

TABLE 1

Contrast item	Scheme one	This application is a
SP2T	2 are provided with	2 are provided with
Combiner	4 are provided with	2 are provided with
DP4T	2 are provided with	1 is provided with
DPDT	1 piece of	3 are provided with
Total area of	31.19mm ²	20.94mm ²

Alternatively, please refer to fig. 13, where fig. 13 is a schematic diagram of an equivalent circuit according to an embodiment of the present application. As shown in fig. 13, the equivalent circuit of the switching device may include an SPDT101, an SPDT102, a combiner 201, a combiner 202, and a four-pole, six-throw switch (4P 6T 501). Referring to fig. 4b and fig. 13 together, it is apparent that the embodiment of the present application simplifies the circuit, reduces the number of combiners, and reduces the manufacturing cost compared with the first conventional solution. Referring to fig. 8 together, it is apparent that, as shown in fig. 8 and 13, the N first ports may be port a and port B in 4P6T, the X first ports may be port C and port D in 4P6T, the K second ports may be port 1, port 2, port 3 and port 4 in 4P6T, and the N second ports may be port 5 and port 6 in 4P 6T. Referring to fig. 9, as shown in fig. 9 and 13, the equivalent circuit is equivalent to DPDT301, DPDT302, DPDT303 and DP4T401 as 4P6T501. It will be appreciated that the equivalent circuit performs functions consistent with the description of the corresponding embodiments of fig. 8 and 9 above.

For example, please refer to fig. 14a to 14d, fig. 14a to 14d are schematic diagrams illustrating antenna selection of a set of equivalent circuits according to an embodiment of the present application. As shown in fig. 14a to 14d, when the LTE main diversity operates on ANT2 and ANT1, respectively, C-3 → C-5 → C-6 → C-4 can be turned on by controlling the 4P6T in turn to realize that the SRS of NR is transmitted on the antenna ANT3 → ANT1 → ANT2 → ANT4 in turn, and so on, which will not be described herein again.

Further, please refer to fig. 15, fig. 15 is a schematic structural diagram of another switching device according to an embodiment of the present application. As shown in FIG. 15, the extension circuit supports a second path of NR bands, namely, NR2 TX3/PRX3, NR2 DRX3, NR2 MIMO PRX3 and NR2 MIMO DRX3 as shown in FIG. 15 are added. Accordingly, as shown in fig. 15, the switching device includes SPDT101, SPDT102, combiner 201, combiner 202, DPDT301, DPDT302, DPDT303, DP4T402, and 4P4T601. Port a of DP4T402 is connected to port 2 of SPDT101, port B of DP4T402 is connected to port 2 of SPDT102, port 1 of DP4T402 is connected to NR2 MIMO DRX3, port 2 is connected to NR2 MIMO PRX3, port 3 is connected to NR1 MIMO DRX2, and port 4 is connected to NR1 MIMO PRX 2. The port a of the 4P4T601 is connected to the NR2 DRX3, the port B is connected to the NR2 TX3/PRX3, the port C is connected to the NR1 DRX2, and the port D is connected to the NR1 TX2/PRX2, and the rest of the connection relationships may refer to the description of the embodiment corresponding to fig. 9, which is not repeated herein.

As shown in fig. 15, the DP4T402 is set up so that the circuit supports the master diversity transceiving of the second NR, and the newly added 4P4T601 makes the circuit support the master diversity receiving of the second NR MIMO. The frequency bands covered by NR1 and NR2 are different and do not operate at the same time, and NR1 and NR2 may respectively implement the same function as that in the embodiment corresponding to fig. 9, that is, when LTE performs antenna switching at will, NR1 or NR2 may perform SRS transmission in turn and may not interfere with antenna switching of LTE. For example, when NR1 works, port D in 4P4T601 may be controlled to alternately conduct among port 1, port 2, port 3, and port 4 according to a certain sequence, so as to implement SRS transmission by NR1, which may specifically refer to the embodiments corresponding to fig. 10a to 10h, and details are not repeated here. For another example, when the NR2 works, the ports B in the 4P4T601 may be controlled to be alternately conducted among the port 1, the port 2, the port 3, and the port 4 according to a certain sequence, so as to implement SRS forwarding of the NR2, which may specifically refer to the embodiments corresponding to fig. 10a to 10h, and details are not repeated here.

Further, please refer to fig. 16, fig. 16 is a schematic structural diagram of another switching device according to an embodiment of the present disclosure. As shown in fig. 16, NR1 TX4 and NR2 TX5 are added to the rf circuit portion, and therefore, compared with fig. 15, the circuit structure shown in fig. 6 also expands the 2T4R specification supporting the first NR and the second NR, that is, NR1 supports 2 transmissions (TX 2 and TX 3), and NR2 also supports 2 transmissions (TX 4 and TX 5). As shown in fig. 16, NR1 TX4 is connected to port 4 of DP4T402, and NR2 TX5 is connected to port 2 of DP4T 402. Alternatively, as described in the foregoing explanation of the SRS, when the whole rf system (for example, including the rf circuit, the switch device and the antenna system) operates in the NSA mode, the LTE and NR1 TX2 operate, and the NR1 TX4 and NR2 TX5 do not operate; alternatively, LTE and NR2 TX3 operate, and at this time, NR1 TX4 and NR2 TX5 do not operate, so that the SRS transmission that NR only supports 1T4R is equivalent to the embodiment corresponding to fig. 15. When the whole radio frequency system works in an SA mode, NR1 TX2 and NR1 TX4 work, and LTE does not work; alternatively, NR2 TX3 and NR2 TX5 are active and LTE is not active, so that both NR1 and NR2 support SRS transmission for 2T 4R. For example, when the entire radio frequency system operates in the SA mode and NR1 TX2 and NR1 TX4 operate, port D in 4P4T601 may be controlled to be alternately conducted among port 1, port 2, port 3, and port 4 in a certain order, port 4 in DP4T402 may be controlled to be alternately conducted between port a and port B, and respective conduction states of DPDT301, DPDT302, and DPDT303 are controlled, so that NR1 TX2 and NR1 TX4 may perform SRS transmission through 4 antennas, thereby implementing SRS transmission of a first path NR (i.e., NR 1) 2T4R specification.

Referring to fig. 17, fig. 17 is a flowchart illustrating a communication method according to an embodiment of the present disclosure, where the communication method may be applied to a communication device (for example, the communication device 100 described in fig. 6). The communication device may include an antenna system and a switching arrangement, the antenna system including K antennas; the switch device comprises N + X first ports, K + N second ports and N combiners; k second ports of the K + N second ports are respectively connected with the K antennas one by one; n second ports of the K + N second ports are respectively connected with the first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with N first ports of the N + X first ports one by one; n, X and K are integers which are more than or equal to 1. Optionally, the method may be applied to the application scenario described in fig. 12a or fig. 12b, and the method may include the following steps S701 to S704.

Step S701, conducting an ith first port of the N first ports and a jth second port of the K second ports through the switch device, and transmitting a first type of signal through a corresponding jth antenna; i is an integer greater than or equal to 1 and less than or equal to N, and j is an integer greater than or equal to 1 and less than or equal to K.

Step S702, by the switch device, when a second-type signal needs to be transmitted through the jth antenna, turning on an S-th first port of the X first ports and an i-th second port of the N second ports, via an i-th combiner connected to the i-th second port and the i-th first port connected to the i-th combiner, turning on the S-th first port to the jth second port, and transmitting the second-type signal through the jth antenna; s is an integer greater than or equal to 1 and less than or equal to X.

Optionally, the communication method may specifically refer to the descriptions of the embodiments corresponding to fig. 8 and fig. 9, fig. 10a to fig. 10h, and fig. 11a to fig. 11d, which are not repeated herein.

Embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium may store a program, and when the program is executed by a processor, the processor may be enabled to execute some or all of the steps of any one of the method embodiments described above.

An embodiment of the present invention further provides a computer program, where the computer program includes instructions that, when executed by a multi-core processor, enable the processor to perform part or all of the steps of any one of the method embodiments described above.

It should be understood that, in the above embodiment, the LTE core NR communication system is taken as an example, and an actual communication system may be replaced by its type, which is not limited in this embodiment.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments. It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus can be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the above-described units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, indirect coupling or communication connection between devices or units, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute all or part of the steps of the above-described method according to the embodiments of the present invention. The storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), a Double Data Rate (DDR), a flash memory (flash) or a Random Access Memory (RAM).

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

A switching device is applied to communication equipment, wherein the communication equipment comprises an antenna system, and the antenna system comprises K antennas; the switch device comprises N + X first ports, K + N second ports and N combiners; wherein,

k second ports of the K + N second ports are respectively connected with the K antennas one by one; n second ports of the K + N second ports are respectively connected with respective first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with N first ports in the N + X first ports one by one; n, X and K are integers which are more than or equal to 1;

the switching device is used for:

conducting the ith first port of the N first ports and the jth second port of the K second ports, and transmitting a first type of signal through a corresponding jth antenna; i is an integer greater than or equal to 1 and less than or equal to N, j is an integer greater than or equal to 1 and less than or equal to K;

when a second-type signal needs to be transmitted through the jth antenna, conducting an s-th first port of the X first ports and an i-th second port of the N second ports, conducting the s-th first port to the jth second port through an i-th combiner connected with the i-th second port and the i-th first port connected with the i-th combiner, and transmitting the second-type signal through the jth antenna; s is an integer greater than or equal to 1 and less than or equal to X.
The apparatus of claim 1, wherein the switching device is further configured to:

when the second-class signal needs to be transmitted through a j 'th antenna, conducting an s' th first port of the X first ports and a j 'th second port of the K second ports, and transmitting the second-class signal through a corresponding j' th antenna; j 'is an integer greater than or equal to 1 and less than or equal to K, j is not equal to j'.
The apparatus of claim 1 or 2, wherein the switching means comprises a first double pole double throw switch (DPDT), a second DPDT, a third DPDT and a double pole four throw switch (DP 4T); the N first ports comprise two P ports of the first DPDT; the X first ports comprise two P ports in the DP4T; the K second ports include two T ports in the second DPDT and two T ports in the third DPDT; the N second ports include two T ports of the DP 4T.
The apparatus of claim 3, wherein the first DPDT, the second DPDT, and the third DPDT each comprise a first P port, a second P port, a first T port, and a second T port; the DP4T comprises a first P port, a second P port, a first T port, a second T port, a third T port and a fourth T port;

a first T port of the first DPDT is connected to a first P port of the second DPDT; a first T port of the second DPDT is connected to a first antenna of the K antennas;

a second T port of the first DPDT is connected to a first P port of the third DPDT; a first T port of the third DPDT is connected to a second antenna of the K antennas;

a second T port of the DP4T is connected to a second P port of the second DPDT; a second T port of the second DPDT is connected to a third antenna of the K antennas;

a third T port of the DP4T is connected to a second P port of the third DPDT; and a second T port of the third DPDT is connected to a fourth antenna of the K antennas.
The apparatus of claim 4, wherein the communication device further comprises a radio frequency circuit comprising a first class of circuit and a second class of circuit; the first class of circuits comprises a first main set transmitting circuit, a first main set receiving circuit and a first diversity receiving circuit; the second class of circuits comprises a second dominant set of transmit circuits, a second dominant set of receive circuits, and a second diversity receive circuit; the N combiners comprise a first combiner and a second combiner; wherein,

the first diversity receiving circuit is connected with the second input end of the first combiner; the first master set transmitting circuit and the first master set receiving circuit are connected with the second input end of the second combiner;

the second diversity receiving circuit is connected with a first P port of the DP4T; the second master set transmit circuit and the second master set receive circuit are connected to a second P-port of the DP 4T.
The apparatus of claim 5, wherein the first class of signals comprises a first dominant set of transmitted signals, a first dominant set of received signals, and a first diversity received signal; the second class of signals comprises a second primary set transmit signal, a second primary set receive signal, and a second diversity receive signal; the first input ends of the first combiner and the second combiner are high-frequency ends, and the second input ends of the first combiner and the second combiner are low-frequency ends.
The apparatus of claim 6, wherein the switching device further comprises: a first single pole double throw switch SPDT and a second SPDT; the first SPDT and the second SPDT respectively comprise a P port, a first T port and a second T port; wherein,

the first T port of the DP4T is connected with the first T port of the first SPDT; the P port of the first SPDT is connected with the first input end of the first combiner; the output end of the first combiner is connected with a first P port of the first DPDT;

a fourth T port of the DP4T is connected with the first T port of the second SPDT; the P port of the second SPDT is connected with the first input end of the second combiner; and the output end of the second combiner is connected with the second P port of the first DPDT.
The apparatus according to any one of claims 1 to 7, wherein the K antennas are all antennas supporting a Long Term Evolution (LTE) frequency band and a 5G new air interface (NR) frequency band.
The communication method is characterized by being applied to communication equipment, wherein the communication equipment comprises an antenna system and a switch device, and the antenna system comprises K antennas; the switch device comprises N + X first ports, K + N second ports and N combiners; wherein,

k second ports of the K + N second ports are respectively connected with the K antennas one by one; n second ports of the K + N second ports are respectively connected with respective first input ends of the N combiners one by one; the output ends of the N combiners are respectively connected with N first ports in the N + X first ports one by one; n, X and K are integers which are more than or equal to 1;

the method comprises the following steps:

conducting an ith first port of the N first ports and a jth second port of the K second ports through the switch device, and transmitting a first-class signal through a corresponding jth antenna; i is an integer greater than or equal to 1 and less than or equal to N, j is an integer greater than or equal to 1 and less than or equal to K;

by the switching device, when a second-class signal needs to be transmitted through the jth antenna, conducting an s-th first port of the X first ports and an i-th second port of the N second ports, conducting the s-th first port to the jth second port through an i-th combiner connected with the i-th second port and the i-th first port connected with the i-th combiner, and transmitting the second-class signal through the jth antenna; s is an integer greater than or equal to 1 and less than or equal to X.
A radio frequency system for use in a communication device, the radio frequency system comprising radio frequency circuitry, an antenna system and a switching device as claimed in any one of the preceding claims 1 to 8.
A communication device, characterized in that it comprises radio frequency circuitry, an antenna system and a switching device according to any one of the preceding claims 1-8.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method of claim 9.
A computer program, characterized in that the computer readable program comprises instructions which, when executed by a processor, cause the processor to carry out the method according to claim 9.