CN113841341A

CN113841341A - Wireless communication device and antenna switching method thereof

Info

Publication number: CN113841341A
Application number: CN202080029807.1A
Authority: CN
Inventors: 徐求良; 刘道明; 王辉; 荆伟涛; 雷剑文; 赵军; 上官声长; 宋红萍; 王新柱; 白欣
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-12-24
Anticipated expiration: 2040-03-26
Also published as: CN113841341B; WO2021189388A1

Abstract

The application provides a wireless communication device and an antenna switching method thereof, wherein the wireless communication device comprises: the antenna comprises a signal processing module, a selector switch, a first antenna and at least two second antennas. The first antenna and the at least two second antennas are connected with the signal processing module through the selector switch, the first antenna is used as a transmitting antenna, and the at least two second antennas are used as receiving antennas. And the signal processing module is used for comparing the first antenna with a second antenna with the best performance in the at least two second antennas, and if the performance of the first antenna is lower, the signal processing module controls the selector switch to switch the first antenna into the receiving antenna and switch the second antenna with the best performance into the transmitting antenna. According to the technical scheme, at least two second antennas are used as standby antennas of the transmitting antenna, and when the performance of the first antenna as the transmitting antenna is poor, the second antenna with the best performance can be used as the transmitting antenna, so that the communication performance of the wireless communication device is improved.

Description

Wireless communication device and antenna switching method thereof

Technical Field

The present application relates to the field of communications technologies, and in particular, to a wireless communication device and an antenna switching method thereof.

Background

A terminal supporting a wireless communication function needs to be provided with an antenna. Taking a mobile phone as an example, as the number of wireless communication systems and frequency bands supported by the mobile phone increases, the mobile phone is generally provided with a plurality of antennas. The antenna generally has at least one receiving antenna and one transmitting antenna, and in order to improve the communication effect of the mobile phone in the prior art, the transmitting antenna and the receiving antenna are selected according to the antenna performance in the mobile phone. Illustratively, a first antenna a and a second antenna B are taken as an example. At the initial setting, the second antenna B supports TRx (Tx + Rx, Tx: transmission or transmitter, Rx, reception or receiver; main set transmission and reception), and the first antenna a supports DRx (DRx: diversity reception). When the antenna needs to be changed: the first antenna a supports TRx and the second antenna B supports DRx. The above change is according to the following selection rule: the received signal strength of Rx of the first antenna a is compared with the received signal strength of Rx of the second antenna B. If the received signal strength of the current antenna is good, the TRx is judged to be good, and the antenna is not switched. If the received signal strength is poor once at the antenna that is TRx (say a) and reaches a certain threshold, another antenna that is DRx (say B) is intermittently listened to, and the respective received signal strengths are compared to the strengths of the first antennas a and B. When the received signal strength of DRx is better than that of TRx and meets the set difference starting threshold, the antenna switching is started, and the antenna switching can be realized by configuring a double-pole double-throw switch.

However, in the above-mentioned antenna in the mobile phone, because the main set antenna is a transmitting antenna and a receiving antenna, the selectivity of the antenna during switching is low, and the communication performance of the mobile phone is affected.

Disclosure of Invention

The application provides a wireless communication device and an antenna switching method thereof, which are used for improving the communication effect of the wireless communication device.

In a first aspect, a wireless communication apparatus is provided, where the wireless communication apparatus is applied to a wireless communication apparatus, and the wireless communication apparatus at least includes: the antenna comprises a signal processing module, a selector switch, a first antenna and at least two second antennas. The signal processing module is used for processing signals of the antenna, such as transmitting and receiving signals. The first antenna and the at least two second antennas are connected with the signal processing module through the switch, wherein the first antenna is used as a transmitting antenna, and the at least two second antennas are used as receiving antennas. In addition, the signal processing module is further configured to compare the first antenna with a second antenna with the best performance among the at least two second antennas, and if the performance of the first antenna is low, control the switch to switch the first antenna to be a receiving antenna and switch the second antenna with the best performance to be a transmitting antenna. As can be seen from the above description, the technical solution disclosed in the present application improves the communication performance of the wireless communication device by using at least two second antennas as backup antennas for the transmitting antennas, and when the first antenna does not perform well as the transmitting antenna, the second antenna with the best performance can be used as the transmitting antenna.

In a specific possible implementation, the signal processing module determines the best-performing second antenna of the at least two second antennas according to the received signal strengths of the at least two second antennas. The best performing second antenna is determined by comparing the received signal strength of at least two second antennas.

In a specific implementation, the signal processing module is further configured to control the switch to switch the first antenna to be a receiving antenna and switch the second antenna with the best performance to be a transmitting antenna when a difference between the performance of the first antenna and the performance of the second antenna with the best performance exceeds a set value. The transmitting antenna is changed when the best performing second antenna differs from the first antenna by a set value.

In a specific possible embodiment, the signal processing module compares the first antenna with a second antenna with the best performance among the at least two second antennas by: comparing the best performing second antenna of the first antenna and the at least two second antennas according to the power of the best performing second antenna of the first antenna and the at least two second antennas. Whether to change the transmitting antenna is determined by comparing the power of the best performing second antenna with the power of the first antenna.

In a specific possible implementation, the at least two second antennas are selected partial antennas of the wireless communication device. Antennas in a wireless communication apparatus are divided, and a spare antenna set is selected according to a set condition.

In a specific possible implementation, the at least two second antennas are antennas with high priority, or antennas with forward power, in the wireless communication device.

In a specific possible embodiment, the signal processing module comprises: the system comprises a baseband subsystem and a radio frequency integrated circuit connected with the baseband subsystem; the baseband subsystem or the radio frequency integrated circuit is configured to compare performances of the at least two second antennas, compare the first antenna with a second antenna with a best performance among the at least two second antennas, and if the performance of the first antenna is low, control the switch to switch the first antenna to a receiving antenna, and switch the second antenna with the best performance to a transmitting antenna. The replacement of the transmitting antenna may be accomplished by a radio frequency integrated circuit or a baseband subsystem.

In a specific implementation, the radio frequency transmission channel of the radio frequency integrated circuit is connected with the switch through a transmission circuit; and a radio frequency receiving channel of the radio frequency integrated circuit is connected with the selector switch through a receiving circuit. The transmission and reception of signals is achieved by different circuits.

In a specific possible implementation, the transmit circuit includes: the radio frequency transmission system comprises a power amplifier connected with the radio frequency transmission channel, and a transmission front end module connected with the power amplifier, wherein the transmission front end module is connected with the selector switch.

In a specific possible implementation, the receiving circuit includes: the low-noise amplifier is connected with the radio frequency receiving channel, and the receiving front-end module is connected with the low-noise amplifier and is connected with the selector switch.

In a specific possible implementation, the switch is a multi-pole multi-throw switch to realize the switching of the second antenna and the first antenna.

In a second aspect, a wireless communication apparatus is provided, the wireless communication apparatus comprising: a radio frequency integrated circuit, a switch coupled to the radio frequency integrated circuit, and the first antenna, the second antenna, and the third antenna coupled to the switch; the radio frequency integrated circuit is used for configuring the working state of the selector switch, and the working state of the selector switch comprises a first state, a second state and a third state; wherein, when the switch is in a first state, the first antenna is configured as a transmit antenna, and the second and third antennas are configured as receive antennas; when the switch is in a second state, the second antenna is configured as a transmit antenna, and the first and third antennas are configured as receive antennas; when the switch is in a third state, the third antenna is configured as a transmit antenna and the first and second antennas are configured as receive antennas. In the above technical solution, the first antenna, the second antenna, and the third antenna are used as backup antennas of the transmitting antenna, and when the performance of the first antenna as the transmitting antenna is not good, the second antenna or the third antenna with the best performance can be used as the transmitting antenna, thereby improving the communication performance of the wireless communication device.

In a specific embodiment, when the operating state of the switch is in the first state, the first antenna is the best antenna among the first antenna, the second antenna and the third antenna; when the working state of the change-over switch is in a second state, the second antenna is the antenna with the best performance among the first antenna, the second antenna and the third antenna; when the working state of the change-over switch is in a third state, the third antenna is the antenna with the best performance among the first antenna, the second antenna and the third antenna. Thereby improving the performance of the transmit antenna.

In a specific embodiment, the rf integrated circuit is configured to configure the switch to switch between the best performing receive antenna and the transmit antenna, and configure the best performing antenna as the transmit antenna.

In a specific embodiment, the best performing receiving antenna is the receiving antenna with high received signal strength.

In a specific possible implementation, the radio frequency integrated circuit is configured to configure the transmit antenna according to power.

In a third aspect, an antenna switching method of a wireless communication device is provided, where the wireless communication device includes a first antenna and at least two second antennas, where the first antenna is a transmitting antenna, and the at least two second antennas are receiving antennas; the method comprises the following steps:

and comparing the performance of the first antenna with that of the second antenna with the best performance, and if the performance of the first antenna is lower, switching the first antenna into a receiving antenna and switching the second antenna with the best performance into a transmitting antenna.

As can be seen from the above description, the technical solution disclosed in the present application improves the communication performance of the wireless communication device by using at least two second antennas as backup antennas for the transmitting antennas, and when the first antenna does not perform well as the transmitting antenna, the second antenna with the best performance can be used as the transmitting antenna.

In a specific embodiment, the method further comprises: and determining the best second antenna in the at least two second antennas according to the received signal strength of the at least two second antennas. The best performing second antenna is determined by comparing the received signal strength of at least two second antennas.

In a specific embodiment, the method further comprises: and when the difference value between the performance of the first antenna and the performance of the second antenna with the best performance exceeds a set value, controlling the selector switch to switch the first antenna to be a receiving antenna and switch the second antenna with the best performance to be a transmitting antenna. The transmitting antenna is changed when the best performing second antenna differs from the first antenna by a set value.

In a specific embodiment, the comparing the first antenna with the second antenna with the best performance of the at least two second antennas is specifically: comparing the best performing second antenna of the first antenna and the at least two second antennas according to the power of the best performing second antenna of the first antenna and the at least two second antennas. Whether to change the transmitting antenna is determined by comparing the power of the best performing second antenna with the power of the first antenna.

In a specific possible implementation, the at least two second antennas are selected partial antennas of the wireless communication device. Antennas in a wireless communication device are divided and spare antenna sets are selected.

In a fourth aspect, an embodiment of the present application provides a signal processing module, which includes a processor, and is configured to implement the method described in the second aspect. The signal processing module may also include a memory for storing instructions and data. The memory is coupled to the processor, and the processor, when executing the program instructions stored in the memory, may implement the method described in the second aspect above. The signal processing module may further include a communication interface for the apparatus to communicate with other devices, for example, a transceiver, a circuit, a bus, a module or other types of communication interfaces, and the other devices may be network devices or terminal devices.

In a specific implementation, the signal processing module includes: a memory for storing program instructions;

and the processor is used for calling the instructions stored in the memory so as to enable the device to execute the method of any one of the possible designs of the third aspect and the third aspect of the embodiment of the application.

In a fifth aspect, the present application further provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method of the second aspect and any one of the possible designs of the second aspect.

In a sixth aspect, an embodiment of the present application further provides a chip system, where the chip system includes a processor and may further include a memory, and is used to implement the third aspect and any one possible design method of the third aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a seventh aspect, this application further provides a computer program product, which includes instructions that, when executed on a computer, cause the computer to perform the method according to any one of the possible designs of the first aspect and the first aspect, or the method according to any one of the possible designs of the third aspect and the third aspect.

Drawings

Fig. 1 is a schematic application scenario of a wireless communication device;

fig. 2 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another wireless communication apparatus according to an embodiment of the present application;

fig. 4 is a handover flowchart of a wireless communication device according to an embodiment of the present application;

fig. 5 is a flowchart of another wireless communication apparatus according to an embodiment of the present application;

fig. 6 is a block diagram of a signal processing module according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application.

Detailed Description

For convenience of understanding, an application scenario of the wireless communication device provided in the embodiments of the present application is first described. The wireless communication device provided by the embodiment of the application is applied to wireless communication, such as the terminal and the base station shown in fig. 1, and the terminal and the base station can communicate with each other through an antenna. The wireless communication device provided by the embodiment of the application can be suitable for both terminals and base stations, and the terminals and the base stations are arranged by adopting the main set transmitting antenna and the main set receiving antenna in a split mode.

It should be understood that the wireless communication device may comply with the third generation partnership project (3 GPP) wireless communication standard, and may also comply with other wireless communication standards, such as the IEEE 802 series (e.g., 802.11, 802.15, or 802.20) wireless communication standards of the Institute of Electrical and Electronics Engineers (IEEE). Although only one base station and one terminal are shown in fig. 1, the wireless communication apparatus may include other numbers of terminals and base stations. The wireless communication device may also include other network equipment, such as core network equipment.

The terminal and the base station should know the predefined configuration of the wireless communication device, including Radio Access Technology (RAT) supported by the system and the radio resource configuration specified by the system, such as the basic configuration of the frequency band and carrier of the radio. These system-predefined configurations may be determined as part of the standard protocol of the wireless communication device or by the interaction between the terminal and the base station. The contents of the relevant standard protocols may be pre-stored in the memories of the terminal and the base station, or embodied as hardware circuits or software codes of the terminal and the base station.

The base stations are typically assigned to and operated or maintained by operators or infrastructure providers. A base station may provide communication coverage for a particular geographic area through an integrated or external antenna. One or more terminals located within the communication coverage of the base station may each access the base station. A base station may also be referred to as a wireless Access Point (AP), or a Transmission Reception Point (TRP). Specifically, the base station may be a general Node B (gNB) in a 5G New Radio (NR) system, an evolved Node B (eNB) in a 4G Long Term Evolution (LTE) system, and the like.

The terminal is more closely related to the user, and is also called User Equipment (UE), or Subscriber Unit (SU), customer-premise equipment (CPE). A terminal tends to move with a user, sometimes referred to as a Mobile Station (MS), relative to a base station, which is typically located at a fixed location. In addition, some network devices, such as Relay Nodes (RNs), may also be considered as terminals due to their UE identities or due to their affiliations with users. Specifically, the terminal may be a mobile phone (mobile phone), a tablet computer (tablet computer), a laptop computer (laptop computer), a wearable device (such as a watch, a bracelet, a helmet and glasses), and other devices with wireless access capability, such as an automobile, a mobile wireless router, and various internet of things (IOT) devices, including various smart home devices (such as an electric meter and a household appliance) and smart city devices (such as a monitoring camera and a street lamp).

Fig. 2 shows a specific structure of a wireless communication device according to an embodiment of the present application. The wireless communication device comprises a radio frequency integrated circuit 10, an antenna radiator and a connection circuit connecting the radio frequency integrated circuit 10 and the antenna radiator. The rf integrated circuit 10 includes a rf transmitting channel and a rf receiving channel, wherein the channels (the rf transmitting channel and the rf receiving channel) in the rf integrated circuit 10 are correspondingly connected to the antenna radiator. Illustratively, the rf integrated circuit 10 has one rf transmitting channel and two rf receiving channels, and the antenna radiator includes a first antenna 20a and two second antennas 20b, where the first antenna 20a is connected to the rf transmitting channel and the second antenna 20b is connected to the rf receiving channel. In the embodiment of the present application, the number of the rf transmitting channels is not limited, but the number of the rf receiving channels is at least two, and the number of the corresponding second antennas 20b is also at least two. It should be understood that when other numbers of rf receive channels or rf transmit channels are used, the number of antenna radiators may also be changed accordingly.

With continued reference to fig. 2, the connection circuit provided in the embodiment of the present application includes a transmitting circuit 40a, two receiving circuits 40b, and a switch 30. The rf transmitting channels of the rf integrated circuit 10 are connected to the switch 30 through the transmitting circuit 40a, the rf receiving channels of the rf integrated circuit 10 are connected to the switch 30 through the receiving circuit 40b, and the number of the transmitting circuits 40a and the number of the receiving circuits 40b correspond to the number of the corresponding rf transmitting channels and the number of the corresponding rf receiving channels. The transmitting circuit 40a and the two receiving circuits 40b are arranged side by side, the rf integrated circuit 10 and the switch 30 are respectively located at two ends of the transmitting circuit 40a and the receiving circuit 40b, a first end of the switch 30 is respectively connected with the front-end transmitting module 42 and the front-end receiving module 44, and a second end of the switch 30 is respectively connected with the first antenna 20a and the two second antennas 20b, wherein the first end may be a fixed end, the second end may be a movable end, the first end may also be a movable end, and the second end is a fixed end. The switch 30 can be a multi-pole multi-throw switch, a one-pole multi-throw switch, or other switches that can switch multiple circuits.

The transmitting circuit 40a and the receiving circuit 40b may be selected from different circuits, for example, the transmitting circuit 40a may include a power amplifier 41 connected to the radio frequency transmission channel, and a front end transmitting module 42 connected to the power amplifier 41, wherein the front end transmitting module 42 may include different devices, such as a filter. The receiving circuit 40b may comprise a low noise amplifier 43 and a front end receiving module 44 connected to the low noise amplifier 43, and the front end receiving module 44 may comprise different devices, such as a filter. The transmitting circuit 40a and the receiving circuit 40b may also include other known devices for adjusting signals, and are not described herein.

With continued reference to fig. 2, both the first antenna 20a and the two second antennas 20b may act as both a receive antenna and a transmit antenna. Illustratively, the first antenna 20a may be a main set transmit antenna, and the two second antennas 20b may be a main set receive antenna and a diversity receive antenna, respectively. The first antenna 20a and the second antenna 20b are switchable by the switch 30, and when the first antenna 20a is connected to the rf transmission channel through the switch 30 and the two second antennas 20b are connected to the rf reception channel through the switch 30, the first antenna 20a serves as a transmission antenna and the two second antennas 20b serve as reception antennas. When the first antenna 20a and one of the second antennas 20b are connected to the rf receiving channel through the switch 30, and the other second antenna 20b is connected to the rf transmitting channel through the switch 30, the second antenna 20b connected to the rf transmitting channel is used as a transmitting antenna, and the other second antenna 20b and the first antenna 20a are used as receiving antennas.

Unlike the prior art in which a wireless communication device integrates a transmitting function and a receiving function into one main antenna by using a duplexer, the wireless communication device provided in the embodiment of the present application uses separate filters to transmit and receive signals through different antennas. When the performance of the transmitting antenna is not good, the rf integrated circuit 10 may select a better antenna among the antennas (the first antenna 20a and the second antenna 20b) to adjust. For the sake of understanding, the tuning process of the rf ic 10 will be described in detail below.

Take the first antenna 20a as a transmitting antenna and the two second antennas 20b as receiving antennas for example. The rf integrated circuit 10 compares the performance of the two second antennas 20b and compares the first antenna 20a with the best performance second antenna 20b, and if the performance of the first antenna 20a is low, controls the switch 30 to switch the first antenna 20a to a receiving antenna and the best performance second antenna 20b to a transmitting antenna. When the number of the second antennas 20b is plural, the rf integrated circuit 10 finds the second antenna 20b with the best performance by comparing the performances of at least two second antennas 20 b.

When the rf integrated circuit 10 switches between the transmitting antenna and the receiving antenna, it first determines whether the performance of the first antenna 20a is good, and specifically determines that the higher the antenna power is, the worse the performance of the antenna is. The rf integrated circuit 10 may determine the power of the first antenna 20a when the first antenna 20a is operating, and determine that the performance of the first antenna 20a is poor when the power of the first antenna 20a is relatively high. The rf integrated circuit 10 starts to determine the performance of the two second antennas 20 b. When the second antenna 20b is used as a receiving antenna, the best second antenna can be determined according to the received signal strength of at least two second antennas 20 b. Specifically, by comparing the received signal strength between the two second antennas 20b, a greater received signal strength indicates better antenna performance. The rf integrated circuit 10 determines the second antenna 20b with the best performance by determining the received signal strength of the two second receiving antennas. Comparing the radio frequency integrated circuit 10 with the first antenna 20a and the second antenna 20b with the best performance, if the performance of the first antenna 20a is higher than that of the second antenna 20b with the best performance, the switching is not performed, and if the performance of the first antenna 20a is lower than that of the second antenna 20b with the best performance, the radio frequency integrated circuit 10 controls the switch 30 to connect the second antenna 20b with the best performance with the radio frequency transmission channel, and the second antenna 20b with the best performance is used as the transmission antenna; the first antenna 20a is connected to the radio frequency reception channel, and the first antenna 20a functions as a reception antenna.

In comparing the first antenna 20a with the best performing second antenna 20b, the rf integrated circuit 10 compares the first antenna 20a with the best performing second antenna 20b based on the power of the first antenna 20a and the best performing second antenna 20 b. For this purpose, the rf integrated circuit 10 switches the second antenna 20b with the best performance to be the transmitting antenna through the switch 30, and compares the power of the first antenna 20a with the power of the second antenna 20b with the best performance as the transmitting antenna; if the power of the first antenna 20a is higher than the power of the best performing second antenna 20b, the performance of the first antenna 20a is lower than the performance of the best performing second antenna 20 b. And determining the antenna with the best performance by judging the power of the two antennas, and switching the antenna with the best performance into a transmitting antenna. If the best performing second antenna 20b is the best performing second antenna, then the best performing second antenna 20b acts as the transmitting antenna and the first antenna 20a acts as the receiving antenna; if the first antenna 20a is the best performing antenna, the first antenna 20a is still switched to be the transmitting antenna, and the second antenna 20b with the best performance is still used as the receiving antenna.

When determining the performance of the two second antennas 20b, there is no corresponding PA power since the two second antennas 20b are initially receive antennas. Therefore, in order to obtain the PA power of the stand-by antenna, the stand-by antenna may temporarily act as a transmitting antenna by switching of an antenna switch, so as to obtain the PA power of the stand-by antenna. Such temporary antenna switching is detrimental to system performance, e.g., one temporary antenna switching may affect 1% of performance and therefore not too often. Therefore, after the second antenna 20b with the best performance is determined by the strength of the received signal between the second antennas 20b, and then the second antenna 20b with the best performance is compared with the first antenna 20a, the PA power of only one standby antenna is needed to be obtained at this time, instead of obtaining the PA power of all the standby antennas, which is beneficial to reducing the performance loss.

When the number of the second antennas 20b is at least two, the processing manner of the rf integrated circuit 10 still adopts the above manner. The wireless communication apparatus shown in fig. 3 includes 5 antennas, a main set transmission antenna (first antenna 20a), a main set reception antenna (second antenna 20b), a diversity reception antenna (second antenna 20b), a MIMO1 antenna (second antenna 20b), and a MIMO2 antenna (second antenna 20 b). The main set receiving antenna, the diversity receiving antenna, the MIMO1 antenna, and the MIMO2 antenna are all receiving antennas, and when comparing the performance of the second antenna 20b, the received signal strength of all the second antennas b is compared.

In the above technical solution, two second antennas 20b or at least two second antennas 20b are used as spare antenna sets of the transmitting antennas. The rf integrated circuit 10 may select an alternate antenna set of transmit antennas among the antennas in the wireless communication device, and the at least two second antennas 20b are selected portions of the antennas in the wireless communication device. The specific selection can be performed in different manners, for example, all receiving antennas in the wireless communication device can be used as a spare antenna set of the transmitting antennas; alternatively, a part of the receiving antennas may be selected as the spare antenna set according to a setting condition, which may be set differently, for example, the setting condition may be to select the spare antenna set according to the priority of the antennas set in the wireless communication apparatus, for example, when 5 antennas in fig. 3 are used, a part of the antennas may be selected as the spare antenna set. For example, the antenna priorities set by the system in the wireless communication device may be queried, such as the current primary set transmit antenna, the primary set receive antenna, the MIMO1 antenna, and the MIMO2 antenna being the antennas preferentially used by the primary card, and the diversity receive antenna being the antennas preferentially used by the secondary card, then the spare antenna set may include only the current primary set receive antenna, the MIMO1 antenna, and the MIMO2 antenna, but not the diversity receive antenna. Of course, the spare antenna may also include a transmitting antenna before switching, such as the main set transmitting antenna in fig. 2. When the main set transmitting antenna is switched to the receiving antenna, the antenna also serves as one antenna in the spare antenna set.

When the transmitting antennas are switched, the performance of the second antenna 20b with the best performance is better than that of the current transmitting antenna (the first antenna 20a), and then the second antenna 20b with the best performance is switched to be the transmitting antenna; otherwise, the current transmitting antenna is maintained unchanged. The performance of the second antenna 20b with the best performance is better than that of the current transmitting antenna, a comparison threshold may be set, and for example, when the difference between the performance of the first antenna 20a and the performance of the second antenna 20b with the best performance exceeds a set value, the rf integrated circuit 10 may control the switch 30 to switch the first antenna 20a to be the receiving antenna and switch the second antenna 20b with the best performance to be the transmitting antenna. When passing the power comparison, the comparison threshold may be set to the power threshold P. Assuming that the power corresponding to the performance of the current first antenna 20a is assumed to be M, and the power corresponding to the performance of the second antenna 20b with better performance is assumed to be N, when M-N > P, the current standby antenna is switched to the transmitting antenna. M-N ═ P belongs to the critical case, either switched or not.

In the above technical solution, the rf integrated circuit 10 is used to switch the transmitting antenna, but when the wireless communication device includes other information processing modules, the other information processing modules may also be used to control the switching of the transmitting antenna, and for example, the signal processing module includes: baseband subsystem and rf ic 10 connected to the baseband subsystem. The switching of the transmit antenna may be controlled by the baseband subsystem or rf integrated circuit 10. Specifically, the performance of the rf integrated circuit 10 or the baseband subsystem may be compared with the performance of the at least two second antennas 20b, the first antenna 20a is compared with the best performance second antenna 20b of the at least two second antennas 20b, and if the performance of the first antenna 20a is lower, the switch 30 is controlled to switch the first antenna 20a to be a receiving antenna, and the best performance second antenna 20b is switched to be a transmitting antenna. The replacement of the transmit antenna may be accomplished by the rf integrated circuit 10 or the baseband subsystem. Alternatively, when the difference between the performance of the first antenna 20a and the performance of the second antenna 20b with the best performance exceeds a set value, the rf integrated circuit 10 or the bb subsystem may control the switch 30 to switch the first antenna 20a to be the receiving antenna and the second antenna 20b with the best performance to be the transmitting antenna.

The baseband subsystem may extract useful information or data bits from the baseband signal or convert the information or data bits to a baseband signal to be transmitted. These information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem may perform signal processing operations such as modulation and demodulation, encoding and decoding. There is often not exactly the same baseband signal processing operation for different radio access technologies, such as 5G NR and 4G LTE. Therefore, to support convergence of multiple mobile communication modes, the baseband subsystem may simultaneously include multiple processing cores, or multiple HACs. The baseband subsystem is typically integrated into one or more chips, and the chip integrating the baseband subsystem is typically referred to as a baseband integrated circuit (BBIC).

In addition, since the rf signal is an analog signal and the signal processed by the baseband subsystem is mainly a digital signal, an analog-to-digital conversion device is also required in the wireless communication device. The analog-to-digital conversion device includes an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, and a digital-to-analog converter (DAC) that converts a digital signal into an analog signal. In the embodiment of the present application, the analog-to-digital conversion device may be disposed in the baseband subsystem, or may be disposed in the radio frequency integrated circuit.

In order to facilitate understanding of the wireless communication apparatus provided in the embodiments of the present application, the switching state of the wireless communication apparatus is described by taking three antennas as an example.

An embodiment of the present application provides a wireless communication apparatus, including: a radio frequency integrated circuit, a switch coupled with the radio frequency integrated circuit, and a first antenna, a second antenna and a third antenna coupled with the switch; the radio frequency integrated circuit is used for configuring the working state of the selector switch. When the number of the antennas is three, the working states of the selector switch comprise a first state, a second state and a third state; when the switch is in a first state, the first antenna is configured as a transmitting antenna, and the second antenna and the third antenna are configured as receiving antennas; when the switch is in the second state, the second antenna is configured as a transmitting antenna, and the first antenna and the third antenna are configured as receiving antennas; when the switch is in the third state, the third antenna is configured as a transmit antenna and the first and second antennas are configured as receive antennas. When the radio frequency integrated circuit is configured with the state of the change-over switch, the first antenna needs to be ensured to be the antenna with the best performance among the first antenna, the second antenna and the third antenna when the working state of the change-over switch is in the first state; when the working state of the change-over switch is in a second state, the second antenna is the antenna with the best performance among the first antenna, the second antenna and the third antenna; when the working state of the change-over switch is in the third state, the third antenna is the antenna with the best performance among the first antenna, the second antenna and the third antenna. Thereby improving the performance of the transmit antenna. That is, in the embodiment of the present application, when the working state of the switch is configured, the rf integrated circuit switches according to the standard for switching the antenna with the best performance to the transmitting antenna.

In specific switching, the radio frequency integrated circuit is used for configuring the switch to switch between the receiving antenna and the transmitting antenna with the best performance, and configuring the antenna with the best performance as the transmitting antenna. Namely, the radio frequency integrated circuit configuration change-over switch is switched between two states, wherein one state is as follows: when the performance of the receiving antenna with the best performance is better than that of the transmitting antenna, the receiving antenna with the best performance is configured to be the transmitting antenna, and the original transmitting antenna is configured to be the receiving antenna; the other state is as follows: when the performance of the best-performing receiving antenna is lower than that of the transmitting antenna, the best-performing receiving antenna is still configured as the receiving antenna, and the original transmitting antenna is still the transmitting antenna.

When the radio frequency integrated circuit configures the antenna switch state, firstly, the receiving antenna with the best performance in the receiving antenna is determined according to the signal receiving strength of the receiving antenna. When the receiving antenna works, the radio frequency integrated circuit can record the signal receiving strength of the receiving antenna, and the radio frequency combining circuit determines the receiving antenna with high signal receiving strength as the receiving antenna with the best performance.

The rf ic configures the transmit antenna, i.e., the power between the receive antenna and the transmit antenna that compares best performance, based on the power, which is the transmit power.

For convenience of understanding how the wireless communication device switches antennas provided in the embodiments of the present application, the following detailed description is provided with reference to specific procedures.

As shown in fig. 4, fig. 4 shows an antenna switching flowchart of a specific wireless communication apparatus, in the wireless communication apparatus shown in fig. 4, a first antenna a, a second antenna B and a second antenna C are included; the first antenna A is used as a main set transmitting antenna, the second antenna B is used as a main set receiving antenna, and the second antenna C is used as a diversity receiving antenna. When a transmit antenna handoff is performed, the following steps may be performed.

Step 001, judging the performance of the first antenna A, and if the antenna performance of the first antenna A is better, ending the process; if the performance of the first antenna a is poor, step 002 is performed.

Specifically, the performance of the first antenna a can be judged by the power of the first antenna a, and the larger the power of the first antenna a is, the worse the performance of the first antenna a is. The rf integrated circuit determines the power M of the first antenna a according to the operating power of the first antenna a, and when M exceeds a predetermined value, determines that the performance of the first antenna a is poor, and starts to execute step 002.

Step 002 compares the performance of the second antenna B with the second antenna C and determines the best performing second antenna.

Specifically, the received signal strength between the second antenna B and the second antenna C can be compared, wherein a greater received signal strength indicates a better performance of the antenna. Therefore, the received signal strength of the second antenna B and the second antenna C can be compared to determine the performance of the second antenna B and the second antenna C when listening to and listening to traffic. And judging the received signal strength of the two second receiving antennas through the radio frequency integrated circuit to judge the antenna with the best performance.

When the second antenna B and the second antenna C are specifically compared, the second antenna B and the second antenna C belong to the spare antenna set. When the number of the receiving antennas is multiple, the radio frequency integrated circuit can select a spare antenna set of the transmitting antenna from the antennas in the wireless communication device, and the selection can be carried out according to different rules. For example, the receiving antennas may be selected randomly or alternately in a certain order, or the antenna with the highest received signal strength may be selected as the spare antenna by first using the received signal strength recorded by each receiving antenna when receiving signals. A part of the receiving antennas may be further selected as a spare antenna set according to a setting condition, where the setting condition may adopt different settings, for example, the setting condition may select the spare antenna set according to priorities of at least two second antennas set in the wireless communication device, and when the 5 antennas in fig. 2 are adopted, the selecting of a part of the receiving antennas as the spare antenna set may adopt: when the antenna priorities set by the system in the wireless communication device are queried, for example, the current main set transmitting antenna, the main set receiving antenna, the MIMO1 antenna and the MIMO2 antenna are the antennas preferentially used by the main card, and the diversity receiving antenna is the antenna preferentially used by the secondary card, the spare antenna set may include only the current main set receiving antenna, the MIMO1 antenna and the MIMO2 antenna, but not the diversity receiving antenna. Of course, the spare antenna may also include a transmitting antenna before switching, such as the main set transmitting antenna in fig. 2. When the main set transmitting antenna is switched to the receiving antenna, the antenna also serves as one antenna in the spare antenna set.

Step 003, comparing the antenna with better performance in the second antenna B and the second antenna C with the first antenna A; if the performance of the first antenna a is low, the antenna with the better performance among the second antenna B and the second antenna C is switched to be a transmitting antenna, and the first antenna a is switched to be a receiving antenna.

Specifically, when comparing the first antenna a with the second antenna B or the second antenna C having the best performance, the power of the first antenna a can be determined by comparing the powers of the two antennas. Since the power of the second antenna B or the second antenna C cannot be measured when the second antenna B or the second antenna C is used as a receiving antenna, the second antenna B or the second antenna C with the best performance can be temporarily switched to a transmitting antenna through the radio frequency integrated circuit by the switch, and the power N of the second antenna B or the second antenna C can be obtained. Comparing the power M of the first antenna A with the power N of the second antenna B or the second antenna C with the best performance; if M > N, no switching is performed, and if M is less than N, the second antenna B or the second antenna C is switched to be a transmitting antenna. The specific switching manner can refer to the related description in fig. 2. And determining the antenna with the best performance by judging the power of the two antennas, and switching the antenna with the best performance into a transmitting antenna. If the second antenna with the best performance is the second antenna with the best performance, the second antenna with the best performance is used as a transmitting antenna and the first antenna A is used as a receiving antenna by controlling the change-over switch; if the first antenna A has the best performance, the first antenna A is still switched to be the transmitting antenna, and the second antenna with the best performance is still used as the receiving antenna.

When determining the performance of the two second antennas B, there is no corresponding PA since the two second antennas B are initially receiving antennas. Therefore, in order to obtain the PA power of the stand-by antenna, the stand-by antenna may temporarily act as a transmitting antenna by switching of an antenna switch, so as to obtain the PA power of the stand-by antenna. Such temporary antenna switching is detrimental to system performance, e.g., one temporary antenna switching may affect 1% of performance and therefore not too often. Therefore, after the second antenna B with the best performance is judged by the strength of the received signal between the second antennas B, the second antenna B with the best performance is compared with the first antenna a, and at this time, only the PA power of one standby antenna is needed to be obtained, instead of the PA powers of all the standby antennas, so that the performance loss is favorably reduced.

In the above steps, the

steps

002 and 003 may be performed when the first antenna a has low performance, and the

steps

002 and 003 may also be performed periodically, so as to select a better-performing transmitting antenna, thereby saving power consumption.

Different from the prior art which adopts the strength of the received signal as an index for judging the performance of the antenna, the invention adopts the power of PA as an index. The received signal strength reflects the performance of the antenna when receiving signals, the PA power reflects the power of the antenna when transmitting signals, and the PA power is adopted as an index to be more accurate.

The PA power (also referred to as PA power) refers to a power parameter of the PA when the antenna transmits a signal, and the power parameter characterizes an operating state of the PA. Generally, the power of the signal radiated by the antenna requires reference to protocol requirements. Assuming that the power of the signal radiated by the antenna is not changed, if the antenna performance is good, the PA power may be smaller, and if the antenna performance is poor, the PA power is larger. The PA power parameter is a parameter maintained inside the terminal, which the baseband chip can directly read.

Compared with the prior art, the number of the standby antennas can be multiple in the invention and is recorded as a standby antenna set, and the DRx antenna of the existing TAS scheme is usually one. Therefore, in step 002, it may be determined which backup antennas are in the backup antenna set, then one backup antenna may be selected in the backup antenna set, and finally the performance of the backup antenna is determined.

As shown in fig. 5, fig. 5 shows another flow of the switch.

The wireless communication apparatus shown in fig. 5 includes a first antenna a, a second antenna B, and a second antenna C; the first antenna A is used as a main set transmitting antenna, the second antenna B is used as a main set receiving antenna, and the second antenna C is used as a diversity receiving antenna. When the transmit antenna switching is performed, the following steps may be performed.

001, judging the performance of the first antenna A, setting a power threshold Z, and when the power M of the first antenna A is smaller than Z, judging that the performance of the first antenna A is better and finishing replacement; if M > Z, the performance of the first antenna A is poor and step 002 is performed.

Specifically, the performance of the first antenna a may be determined by the power of the first antenna a, a power threshold Z is set, when the power M of the first antenna a is greater than Z, it is determined that the performance of the first antenna a is poor, the transmitting antenna is switched, and step 002 is executed. And if M is less than Z, judging that the performance of the first antenna A is better. When M ═ Z, switching may or may not be performed.

Step 003, comparing the antenna with better performance in the second antenna B and the second antenna C with the first antenna A; and if the difference value between the performance of the first antenna A and the performance of the second antenna with the best performance exceeds a set value, switching the second antenna with the best performance into a transmitting antenna.

Specifically, when comparing the first antenna a with the second antenna B or the second antenna C having the best performance, the power of the first antenna a can be determined by comparing the powers of the two antennas. Since the power of the second antenna B or the second antenna C cannot be measured when the second antenna B or the second antenna C is used as a receiving antenna, the second antenna B or the second antenna C with the best performance can be temporarily switched to a transmitting antenna through the radio frequency integrated circuit by the switch, and the power N of the second antenna B or the second antenna C can be obtained. The comparison threshold may be set to the power threshold P. Comparing the power M of the first antenna A with the power N of the second antenna B or the second antenna C with the best performance, and switching the second antenna with the best performance into a transmitting antenna when M-N > P; when M-N is equal to P, which is a critical case, the transmitting antenna may be switched or not; and when M-N < P, the transmitting antenna is not switched.

When determining the performance of the two second antennas, there is no corresponding PA since the two second antennas were initially receiving antennas. Therefore, in order to obtain the PA power of the stand-by antenna, the stand-by antenna may temporarily act as a transmitting antenna by switching of an antenna switch, so as to obtain the PA power of the stand-by antenna. Such temporary antenna switching is detrimental to system performance, e.g., one temporary antenna switching may affect 1% of performance and therefore not too often. Therefore, after the second antenna B with the best performance is judged by the strength of the received signal between the second antennas B, the second antenna B with the best performance is compared with the first antenna a, and at this time, only the PA power of one standby antenna is needed to be obtained, instead of the PA powers of all the standby antennas, so that the performance loss is favorably reduced.

In the above steps, the

steps

In an example, as shown in fig. 6, the signal processing module 1000 is configured to implement the function of the terminal device in the foregoing method, and the signal processing module 1000 may be the terminal device, or an apparatus in the terminal device. The signal processing module 1000 comprises at least one processor 1001 for implementing the functions of the apparatus in the above method. For example, the processor 1001 may be configured to build a three-dimensional model according to the acquired basic information of the city lifeline buried in the city, which is described in detail in the method and will not be described here.

In some embodiments, the signal processing module 1000 may also include at least one memory 1002 for storing program instructions and/or data. The memory 1002 is coupled to the processor 1001. The coupling in the embodiments of the present application is a spaced coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form, and is used for information interaction between the devices, units or modules. As another implementation, the memory 1002 may also be located outside the signal processing module 1000. The processor 1001 may cooperate with the memory 1002. The processor 1001 may execute program instructions stored in the memory 1002. At least one of the at least one memory may be included in the processor.

In some embodiments, the signal processing module 1000 may also include a communication interface 1003 for communicating with other devices over a transmission medium, such that the apparatus used in the signal processing module 1000 may communicate with other devices. Illustratively, the communication interface 1003 may be a transceiver, circuit, bus, module, or other type of communication interface, which may be a network device or other terminal device, etc. The processor 1001 transmits and receives data using the communication interface 1003, and is used to implement the method in the above-described embodiment. Illustratively, communication interface 1003 may be used for communicating signals.

In an example, the signal processing module 1000 is used to implement the functions of the modules in the method, and the signal processing module 1000 may be a network device or an apparatus in a network device. The signal processing module 1000 comprises at least one processor 1001 for implementing the functions of the modules in the above-described method. For example, the processor 1001 may be configured to determine the performance of the first antenna and the second antenna, which is described in detail in the method and will not be described here.

In some embodiments, the signal processing module 1000 may also include a communication interface 1003 for communicating with other devices over a transmission medium, such that the apparatus used in the signal processing module 1000 may communicate with other devices. Illustratively, the communication interface 1003 may be a transceiver, circuit, bus, module, or other type of communication interface, which may be a network device or other terminal device, etc. The processor 1001 transmits and receives data using the communication interface 1003, and is used to implement the method in the above-described embodiment. Illustratively, communication interface 1003 may transmit a subchannel indication, a resource pool indication, or the like.

The embodiment of the present application does not limit the connection medium among the communication interface 1003, the processor 1001, and the memory 1002. For example, in fig. 6, the memory 1002, the processor 1001, and the communication interface 1003 may be connected by a bus, and the bus may be divided into an address bus, a data bus, a control bus, and the like.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory, for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a user device, or other programmable apparatus. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., an SSD), among others.

Fig. 7 is a wireless communication device according to an embodiment of the present application. The wireless communication apparatus may be a terminal or a base station in the embodiments of the present application. As shown in fig. 7, the wireless communication device includes a body 100, and disposed in the body 100, the body 100 may include an application subsystem 104, a memory 103(memory), a mass storage 105 (bulk storage), a baseband subsystem 102, a radio frequency integrated circuit 101 (RFIC), a Radio Frequency Front End (RFFE) device 106, and an Antenna (ANT), which may be coupled through various interconnection buses or other electrical connections.

In fig. 7, ANT _1 denotes a first antenna, ANT _ N denotes an nth antenna, and N is a positive integer > 1. Tx denotes a transmit path, Rx denotes a receive path, and different numbers denote different paths. FBRx denotes a feedback reception path, PRx denotes a main reception path, and DRx denotes a diversity reception path. HB denotes high frequency, LB denotes low frequency, and both denote relative high and low frequencies. BB denotes baseband. It should be understood that the labels and components in fig. 7 are for illustrative purposes only, as only one possible implementation, and that other implementations are also encompassed by the present embodiments.

The RF integrated circuit 101 may be further divided into an RF receive path (RF receive path) and an RF transmit path (RF transmit path). The rf receive channel may receive an rf signal via an antenna, process (e.g., amplify, filter, and downconvert) the rf signal to obtain a baseband signal, and pass the baseband signal to the baseband subsystem 102. The rf transmit channel may receive the baseband signal from the baseband subsystem 102, perform rf processing (e.g., up-conversion, amplification, and filtering) on the baseband signal to obtain an rf signal, and finally radiate the rf signal into space through an antenna. In particular, the rf subsystem may include antenna switches, antenna tuners, Low Noise Amplifiers (LNAs), Power Amplifiers (PAs), mixers (mixers), Local Oscillators (LOs), filters (filters), and other electronic devices, which may be integrated into one or more chips as desired. Antennas may sometimes also be considered part of the rf subsystem.

The baseband subsystem 102 may extract useful information or data bits from the baseband signal or convert the information or data bits to a baseband signal to be transmitted. These information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem 102 may perform signal processing operations such as modulation and demodulation, encoding and decoding. There is often not exactly the same baseband signal processing operation for different radio access technologies, such as 5G NR and 4G LTE. Therefore, to support convergence of multiple mobile communication modes, the baseband subsystem 102 may include multiple processing cores, or multiple HACs, simultaneously. The baseband subsystem 102 is typically integrated into one or more chips, and the chip integrating the baseband subsystem 102 is typically referred to as a baseband integrated circuit (BBIC).

In addition, since the rf signal is an analog signal, the signal processed by the baseband subsystem 102 is mainly a digital signal, and an analog-to-digital conversion device is also required in the wireless communication device. The analog-to-digital conversion device includes an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, and a digital-to-analog converter (DAC) that converts a digital signal into an analog signal. In the embodiment of the present application, the analog-to-digital conversion device may be disposed in the baseband subsystem 102, or may be disposed in the radio frequency subsystem.

The application subsystem 104 may be used as a main control system or a main computing system of the wireless communication device, and is configured to run a main operating system and an application program, manage software and hardware resources of the entire wireless communication device, and provide a user operation interface for a user. The application subsystem 104 may include one or more processing cores. In addition, driver software associated with other subsystems (e.g., baseband subsystem 102) may also be included in application subsystem 104. The baseband subsystem 102 may also include one or more processing cores, as well as Hardware Accelerators (HACs) and buffers, among others.

In the embodiment of the present application, the RF subsystem may include a separate antenna, a separate RF front end (RFFE) device 106, and a separate RF integrated circuit 101. The radio frequency integrated circuit 101 is sometimes also referred to as a receiver, transmitter, or transceiver. The antenna, the rf front-end device 106 and the rf processing chip may all be manufactured and sold separately. Of course, the rf subsystem may also adopt different devices or different integration modes based on the requirements of power consumption and performance. For example, some devices belonging to the rf front end are integrated into the rf integrated circuit 101, and even if the antenna and the rf front end device 106 are integrated into the rf integrated circuit 101, the rf integrated circuit 101 may also be referred to as an rf antenna module or an antenna module.

In the present embodiment, the baseband subsystem 102 may be implemented as a stand-alone chip, which may be referred to as a modem (modem) chip. The hardware components of the baseband subsystem 102 may be manufactured and sold in units of modem chips. modem chips are also sometimes referred to as baseband chips or baseband processors. In addition, the baseband subsystem 102 may be further integrated into an SoC chip, and manufactured and sold in units of SoC chips. The software components of the baseband subsystem 102 may be built in the hardware components of the chip before the chip is shipped, or may be imported into the hardware components of the chip from the other nonvolatile memory 105 after the chip is shipped, or may be downloaded and updated online through a network.

It should be understood that in the solution provided in the present application, the wireless communication apparatus may be a communication device, or may be a part of a device in the wireless communication apparatus, such as a chip, a chip assembly, or an integrated circuit 101 product including a module of the chip. The wireless communication apparatus may be a computer device supporting a wireless communication function.

In particular, the wireless communication device may be a terminal such as a smartphone, or may be a radio access network device such as a base station. Functionally, chips for wireless communication may be divided into baseband chips and radio frequency integrated circuits 101. The baseband chip is also referred to as a modem (modem) or baseband processing chip. The rf integrated circuit 101 is also called a transceiver chip, a radio frequency transceiver (transceiver) or an rf processing chip. Thus, the wireless communication device may be a single chip or a combination of multiple chips, such as a system chip, a chip platform, or a chip set.

A system-on-chip, also called a system-on-a-chip (SoC), or simply SoC chip, is understood to be a chip that is packaged together into a larger chip. For example, the baseband chip may be further packaged in an SoC chip. The chip platform or the chip set can be understood as a plurality of chips which need to be used in a matched mode, the plurality of chips are often packaged independently, but the chips need to be matched with each other during working, and the wireless communication function is achieved together. For example, the baseband chip (or SoC chip integrated with the baseband chip) and the rf integrated circuit 101 are usually packaged separately, but need to be used together.

The switching can be carried out by the method regardless of whether the wireless communication device is a base station or a terminal, so that the communication effect of the wireless communication device is improved.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

A wireless communications apparatus, comprising: the antenna comprises a signal processing module, a selector switch, a first antenna and at least two second antennas;

the signal processing module is used for transmitting and receiving signals;

the first antenna and the at least two second antennas are connected with the signal processing module through the selector switch, wherein the first antenna is used as a transmitting antenna, and the at least two second antennas are used as receiving antennas;

the signal processing module is further configured to:

comparing the first antenna with a best-performing second antenna of the at least two second antennas,

and if the performance of the first antenna is lower, controlling the change-over switch to change the first antenna into a receiving antenna, and changing the second antenna with the best performance into a transmitting antenna.
The wireless communication apparatus according to claim 1, wherein the signal processing module is configured to determine a best-performing second antenna of the at least two second antennas according to the received signal strengths of the at least two second antennas.
The wireless communication device according to claim 1 or 2, wherein the signal processing module compares the first antenna with a best-performing second antenna of the at least two second antennas by:

comparing the best performing second antenna of the first antenna and the at least two second antennas according to the power of the best performing second antenna of the first antenna and the at least two second antennas.
The wireless communication device according to any of claims 1-3, wherein the at least two second antennas are selected portions of antennas of the wireless communication device.
The wireless communication apparatus of claim 4, wherein the at least two second antennas are antennas with a higher priority in the wireless communication apparatus.
The wireless communication device according to any one of claims 1 to 5, wherein the signal processing module comprises: the system comprises a baseband subsystem and a radio frequency integrated circuit connected with the baseband subsystem;

the baseband subsystem or the radio frequency integrated circuit is configured to compare performances of the at least two second antennas, compare the first antenna with a second antenna with a best performance among the at least two second antennas, and if the performance of the first antenna is low, control the switch to switch the first antenna to a receiving antenna, and switch the second antenna with the best performance to a transmitting antenna.
The wireless communication device of claim 6, wherein the radio frequency transmission channel of the radio frequency integrated circuit is connected to the switch through a transmission circuit;

a radio frequency receiving channel of the radio frequency integrated circuit is connected with the selector switch through a receiving circuit;

the radio frequency receiving circuit is connected with the change-over switch through the receiving circuit.
The wireless communication apparatus of claim 7, wherein the transmit circuit comprises: the radio frequency transmission system comprises a power amplifier connected with the radio frequency transmission channel, and a transmission front end module connected with the power amplifier, wherein the transmission front end module is connected with the selector switch.
The wireless communication apparatus according to claim 7 or 8, wherein the receiving circuit comprises: the low-noise amplifier is connected with the radio frequency receiving channel, and the receiving front-end module is connected with the low-noise amplifier and is connected with the selector switch.
The antenna switching method of the wireless communication device is characterized in that the wireless communication device comprises a first antenna and at least two second antennas, wherein the first antenna is a transmitting antenna, and the at least two second antennas are receiving antennas; the method comprises the following steps:

and comparing the performance of the first antenna with that of the second antenna with the best performance, and if the performance of the first antenna is lower, switching the first antenna into a receiving antenna and switching the second antenna with the best performance into a transmitting antenna.
The antenna switching method according to claim 10, further comprising: and determining the best second antenna in the at least two second antennas according to the received signal strength of the at least two second antennas.
The antenna switching method according to claim 10 or 11, wherein the comparing the first antenna with the second antenna with the best performance of the at least two second antennas comprises:

comparing the best performing second antenna of the first antenna and the at least two second antennas according to the power of the best performing second antenna of the first antenna and the at least two second antennas.
The antenna switching method according to any one of claims 10 to 12, further comprising:

the at least two second antennas are selected portions of antennas of the wireless communication device.
The antenna switching method according to claim 13, wherein the at least two second antennas are antennas with higher priority in the wireless communication device.