Multi-band radio frequency circuit, frequency band adjustment method and wireless device

Abstract

The present application relates to the field of wireless devices and provides a multi-band radio frequency circuit, a frequency band adjustment method, and a wireless device. The circuit includes: a controller; a transceiver; multiple front-end modules; multiple antenna units, each antenna unit having at least two resonant frequency bands; multiple groups of matching links, each group of matching links is matched and coupled with the corresponding antenna unit, and each group of matching links includes the same number of matching links as the number of frequency bands of each antenna unit; multiple first radio frequency switches, wherein a first radio frequency switch is connected between each front-end module and each group of matching links, and the controller is configured to switch the matching links connected to the front-end module based on each first radio frequency switch to achieve frequency band switching. Frequency band switching is configured based on different access devices to maximize hardware utilization efficiency and improve user experience.

Description

Technical Field

[0001] The present application belongs to the field of radio frequency technology, and in particular relates to a multi-band radio frequency circuit, a frequency band adjustment method, and a wireless device. Background Art

[0002] In wireless communication equipment, tri-band models, in addition to the 2.4 GHz band, have an additional 5G band compared to dual-band models, allowing two 5G bands to operate simultaneously. More concurrent bands mean higher throughput, which allows for greater capacity while maintaining a consistent user experience. Currently, tri-band models use different RF links and antennas for Band 1 and Band 4. Due to structural design limitations, if there are N spatial streams, tri-band models can only support (N / 2)*(N / 2) multiple input multiple output (MIMO) for Band 1 and (N / 2)*(N / 2) MIMO for Band 4. Compared to dual-band models with 5G antennas supporting N spatial streams, tri-band models offer greater capacity, but the negotiated throughput for a single user (supporting a maximum NSS of N) is halved. At the same time, due to diversity gain, dual-band models with N spatial streams also offer greater coverage than tri-band models.

[0003] Current radio frequency systems and communications equipment can support 4x4 MIMO for 5G signals across four preset frequency bands. Essentially, this saves circuit board space by enabling the pre-set configuration of four frequency bands, supporting the varying frequency band requirements of operators in multiple countries and improving device utilization efficiency. While frequency band switching is possible in the wireless Wi-Fi field, the switching method is fixed, enabling only one frequency band at a time and failing to adapt to user scenarios. This underutilizes limited resources and results in a poor user experience. Summary of the Invention

[0004] The purpose of this application is to provide a multi-band radio frequency circuit, a frequency band adjustment method and a wireless device, aiming to solve the problem that traditional radio frequency systems can only operate in a single frequency band at the same time, cannot fully utilize limited resources, and have insufficient user experience.

[0005] A first aspect of an embodiment of the present application provides a multi-band radio frequency circuit, including:

[0006] Controller;

[0007] a transceiver, connected to the controller, for receiving or sending radio frequency signals;

[0008] A plurality of front-end modules are respectively connected to the transceiver and used for transmitting and receiving amplification of the radio frequency signal;

[0009] The multi-band radio frequency circuit further includes:

[0010] A plurality of antenna units, each antenna unit having at least two resonant frequency bands;

[0011] a plurality of groups of matching links, each group of matching links being matched and coupled with the corresponding antenna unit, and each group of matching links including the same number of matching links as the number of frequency bands of each antenna unit;

[0012] a plurality of first RF switches, wherein one first RF switch is connected between each front-end module and each group of the matching links, and the controller is configured to control each first RF switch to switch to the matching link of the front-end module to achieve frequency band switching.

[0013] Since the above-mentioned multi-band RF circuit uses the same front-end module in hardware for different frequency bands, matching can adopt two independent links to match different frequency bands respectively. Switching is achieved by using RF switches according to needs to achieve frequency band switching, adapt to the optimization of spatial flow requirements in different scenarios, make full use of limited resources, and improve user experience.

[0014] In one embodiment, each of the antenna units includes at least two single-frequency antennas of different frequency bands, and each of the single-frequency antennas is connected to the first radio frequency switch via a corresponding matching link.

[0015] In one embodiment, a plurality of second RF switches are further included, each of the antenna units includes a multi-frequency antenna, and the second RF switches are connected between the multi-frequency antenna and the matching link. The controller is configured to control each of the first RF switches and each of the second RF switches to switch to the matching link of the front-end module to achieve frequency band switching.

[0016] In one embodiment, at least one 2.4G module is further included, and the 2.4G module is connected to the controller and is used to radiate or receive the radio frequency signal in a resonant frequency band of 2.4 GHz.

[0017] In one embodiment, the controller is configured to control each of the first RF switches to switch to the matching link of the front-end module based on the percentage of the throughput supported by the current link negotiation rate occupied by the actual throughput and / or the frequency band required by the number of access devices to achieve frequency band switching.

[0018] In one embodiment, the frequency bands include 5G band 1 and 5G band 4.

[0019] In one embodiment, the number of the antenna units and the number of the front-end modules are four.

[0020] A second aspect of the embodiments of the present application provides a frequency band adjustment method based on the above-mentioned multi-band radio frequency circuit, the frequency band adjustment method comprising:

[0021] Monitor each access device;

[0022] Determining the frequency band required by each access device based on the monitoring results;

[0023] Based on the frequency band required by each of the access devices, the first radio frequency switch is controlled to switch access to the matching link of the front-end module.

[0024] In one embodiment, the monitoring result includes the number of the access devices and the percentage of the actual throughput of each access device occupied by the throughput supported by the current link negotiation rate;

[0025] The controlling the first RF switch to switch to the matching link of the front-end module based on the frequency band required by each access device includes:

[0026] If there is only one access device, controlling all the first radio frequency switches to switch to the matching link corresponding to the frequency band required by the access device;

[0027] If there are multiple access devices, the number of matching links corresponding to the frequency band required by the access device that are switched to by each first RF switch is controlled according to the percentage of the actual throughput of each access device occupied by the throughput supported by the current link negotiation rate.

[0028] By monitoring access devices based on the frequency band adjustment method of the multi-band RF circuit described above, the RF switch can be controlled according to the user scenario, achieving frequency band conversion to adapt the spatial stream. This allows adaptive user scenarios without changing the hardware, combining the advantages of single-frequency or multi-frequency bands. In the case of multi-user access, multi-frequency bands are used, while a single frequency band is used when a single user requires higher throughput.

[0029] A third aspect of the embodiments of the present application provides a wireless device, including the multi-band radio frequency circuit described above; or

[0030] The system comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above frequency band adjustment method when executing the computer program.

[0031] The above-mentioned wireless device has the beneficial effects of the solutions provided in the first and second aspects above, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the multi-band radio frequency circuit structure provided in Example 1 of the present application;

[0033] Figure 2 A schematic diagram of the multi-band radio frequency circuit structure provided in Example 2 of the present application;

[0034] Figure 3 A schematic diagram of the multi-band radio frequency circuit structure provided in Example 3 of the present application;

[0035] Figure 4 A specific flow chart of the frequency band adjustment method provided in one embodiment of the present application;

[0036] Figure 5 is a schematic diagram of a wireless device provided by an embodiment of the present invention;

[0037] Among them, the reference numerals in each figure are:

[0038] 110, controller; 120, transceiver; 130, front-end module; 140, antenna unit; 150, group matching link; 160, first RF switch; 170, second RF switch; 142, single-frequency antenna; 152, matching link. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0040] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0043] See also Figure 1 The multi-band RF circuit provided in an embodiment of the present application includes a controller 110, a transceiver 120, multiple front-end modules 130 (Front-end Modules, FEM), multiple antenna units 140, multiple groups of matching links 150 and multiple first RF switches 160.

[0044] Controller 110 is typically the main controller of the device using this circuit, such as a network management chip or other central processing unit (CPU). Transceiver 120 is connected to controller 110 for receiving or transmitting radio frequency signals. Multiple front-end modules 130 are respectively connected to transceiver 120 for transmitting and receiving radio frequency signals.

[0045] Each antenna unit 140 has at least two resonant frequency bands. For example, taking a 5G Wi-Fi antenna as an example, the antenna unit 140 generally includes two commonly used frequency bands: 5G band 1 and 5G band 4. Of course, other resonant frequency bands can also be configured to adapt to different scenarios or regions. This application will use these two commonly used frequency bands as an example for illustration.

[0046] Each of the multiple matching links 150 is matched and coupled with a corresponding antenna unit 140. Each matching link 150 includes the same number of matching links 152 as the number of frequency bands of each antenna unit 140. In this way, independent matching links 152 can be used to match different frequency bands, so that each antenna unit 140 can arbitrarily select radiators of different frequency bands to participate in radiation. A first RF switch 160 is connected between each front-end module 130 and each matching link 150. The controller 110 is configured to switch the matching link 152 connected to the front-end module 130 based on each first RF switch 160 to achieve frequency band switching. Generally, frequency band switching is configured based on different application scenarios, different access devices, and the percentage of the actual throughput of each access device occupied by the throughput supported by the current link negotiation rate, thereby maximizing hardware utilization efficiency and improving user experience.

[0047] See also Figure 2In one embodiment, multiple second RF switches 170 are further included. Each antenna unit 140 includes a multi-band antenna, such as a dual-band antenna capable of resonating in 5G band 1 and 5G band 4. The second RF switch 170 is connected between the multi-band antenna and the matching link 152. The controller 110 is configured to switch the matching link 152 connected to the front-end module 130 based on each first RF switch 160 and each second RF switch 170 to achieve frequency band switching. Specifically, the first RF switch 160 is primarily used to switch the matching link 152, while the second RF switch 170 is used to switch the feeding mode of the multi-band antenna, either impedance matching or power matching, to achieve frequency band switching.

[0048] See also Figure 3 In one embodiment, each antenna unit 140 includes at least two single-frequency antennas 142 of different frequency bands. Each single-frequency antenna 142 is connected to the first RF switch 160 via a corresponding matching link 152. For example, each antenna unit 140 includes a 5G band 1 single-frequency antenna 142 and a 5G band 4 single-frequency antenna 142. Compared with the previous embodiment, the use of single-frequency antennas 142 in the antenna unit 140 improves inter-frequency isolation while reducing the insertion loss introduced by the RF switch.

[0049] Typically, a multi-band RF circuit used in a wireless device also includes at least one 2.4 GHz module (not shown). This 2.4 GHz module is connected to the controller 110 and is used to radiate or receive RF signals at a resonant frequency of 2.4 GHz. This, combined with the aforementioned 5G antenna, enables adaptive adjustment of spatial streams in different frequency bands under the control of the controller 110's RF switch, taking into account the respective advantages of dual-band and triple-band, thereby improving the user experience.

[0050] In one embodiment, there are N antenna units 140 and N front-end modules 130, for example, 4. That is, the antenna units 140 are N MIMO antennas, and the entire multi-band radio frequency circuit can achieve N*N MIMO diversity.

[0051] The following uses two usage scenarios, a single access device (STA) and multiple STAs, as examples to demonstrate the working process of the wireless device to which the present application is applied.

[0052] Scenario 1: A single STA supports Nsta NSS, and the device has a maximum number of antennas, N. In this case, the number of spatial streams for 5G band 1 is N / 2, and the number of spatial streams for 5G band 4 is N / 2. When the STA's actual throughput approaches the theoretical upper limit of the negotiated rate, network lag or delay may occur. Analyze the following situations in detail:

[0053] If a STA accesses 5G band 1 or 5G band 4, and Nsta ≤ N / 2, and the STA has negotiated the highest rate, increasing the STA's spatial streams or increasing the diversity gain will not improve performance.

[0054] If a STA accesses 5G band 1 or 5G band 4 and Nsta ≤ N / 2, and the STA fails to negotiate the highest rate, the control switch is switched to increase the STA's spatial streams. Although this does not increase the actual STA spatial streams, it can increase the diversity gain, allowing the STA to negotiate a higher rate and improve its performance.

[0055] If a STA accesses 5G band 1 or 5G band 4 and Nsta>N / 2, the switch is controlled to increase the STA's spatial streams. This not only increases the actual STA spatial streams but also improves diversity gain, thereby increasing the number of NSSs and the rate actually negotiated by the STA, increasing hardware utilization and improving performance.

[0056] Scenario 2: Multiple STAs access the device. The STAs are sorted from highest to lowest according to their actual throughput, numbered STA1, STA2, etc. The corresponding NSS numbers supported by the STAs are Nsta1, Nsta2, Nsta3, etc. The default spatial streams for 5G band 1 and 5G band 4 are N / 2, respectively. For this scenario, the following situations are analyzed in detail:

[0057] STA1 accesses 5G band 1, and the other STAs access 5G band 4. At this time, the actual throughput values ​​of STA1 and other STAs are lower than the actual negotiated rate throughput values. The spatial stream allocation is reasonable, so the spatial stream allocation is not adjusted.

[0058] STA1 accesses 5G band 1, and the other STAs access 5G band 4. STA1's actual throughput exceeds 80% of the maximum negotiated rate, while the actual throughput of the other STAs is less than 20% of the actual negotiated rate. Furthermore, the number of NSSs supported by STA1, Nsta1, is greater than N / 2, or the negotiated rate has not reached the maximum rate. Therefore, M1 is assigned to the 5G band 1 spatial stream, and M2 to the 5G band 4 spatial stream. M1 > N / 2, and M1 + M2 = N. After this adjustment, STA1's spatial stream is increased, and the negotiated rate is also increased due to greater diversity gain. However, the total actual throughput of the other STAs must not exceed 80% of the actual negotiated rate. This ensures access for other STAs while also improving STA1's throughput, fully utilizing hardware performance and enhancing the user experience.

[0059] See also Figure 4A second aspect of an embodiment of the present application provides a frequency band adjustment method based on the above-mentioned multi-band radio frequency circuit, the frequency band adjustment method comprising:

[0060] Step S110: monitor each access device.

[0061] Specifically, the system monitors the number of access devices and the percentage of the current actual throughput of each access device to the theoretical throughput of the current negotiated rate.

[0062] Step S120, determining the frequency band required by each access device based on the monitoring result;

[0063] For example, if only one access device is monitored, as in the above scenario 1, it can be considered that the frequency band required by the access device is any frequency band; for another example, if multiple access devices are monitored, as in the above scenario 2, it is necessary to allocate different or the same frequency bands of different antenna units 140 to different devices according to the requirements of spatial streams.

[0064] Step S130 : Based on the frequency band required by each access device, the first RF switch 160 is controlled to switch access to the matching link 152 of the front-end module 130 .

[0065] In one embodiment, the monitoring results include the number of access devices, the percentage of the current actual throughput of each access device to the theoretical throughput of the current negotiated rate;

[0066] Step S130 includes:

[0067] If there is only one access device, all first RF switches 160 are controlled to switch to the matching link 152 corresponding to the frequency band required by the access device, where the frequency band required by the access devices is the same frequency band. As in scenario 1 above, the frequency band required by the access device can be considered to be a frequency band corresponding to the matching link 152. All first RF switches 160 are switched to the matching link 152 corresponding to the same frequency band, allowing N spatial streams to access the access device, providing maximum throughput.

[0068] If there are multiple access devices, the first RF switches 160 are controlled to switch to the number of matching links 152 corresponding to the frequency bands required by the access devices according to the percentage of the current actual throughput of each access device occupied by the throughput supported by the current link negotiation rate.

[0069] Specifically, the current actual throughput of the access device is compared with the throughput supported by the current link negotiation rate. If the actual throughput exceeds 80% of the theoretical throughput of the current negotiated rate, it is determined that the access device has a demand for higher throughput at this time, and the first RF switch 160 is controlled to allocate more spatial streams (more antenna units 140 operate in the frequency band connected to the access device). At the same time, more spatial streams also have higher diversity gain, so that the upper limit of the theoretical maximum throughput of the access device will be increased. If the actual throughput is less than 20% of the theoretical value, it is considered that the access device does not need so many spatial streams. The first RF switch 160 is controlled to reduce the spatial streams of the access device and allocate them to other devices that require spatial streams, thereby improving hardware utilization.

[0070] As in the above scenario 2, the access device's demand for spatial streams, network delay and throughput is judged based on the percentage of the current actual throughput of the channel occupied by the throughput supported by the current link negotiation rate to determine the demand of each access device. If the demand is large, more antenna units 140 are matched to work in a frequency band for the access device, and for access devices with small demand, the remaining antenna units 140 are used to work in another frequency band to access access devices with small demand. In this way, without changing the hardware, the user scenario can be adapted, and the advantages of single frequency or multi-frequency bands can be combined. In the case of multi-user access, multi-frequency bands are used, and when a single user requires higher throughput, a single frequency band is used.

[0071] By monitoring access devices based on the frequency band adjustment method of the multi-band RF circuit described above, the RF switch can be controlled according to the user scenario, achieving frequency band conversion to adapt the spatial stream. This allows adaptive user scenarios without changing the hardware, combining the advantages of single-frequency or multi-frequency bands. In the case of multi-user access, multi-frequency bands are used, while a single frequency band is used when a single user requires higher throughput.

[0072] A third aspect of the embodiments of the present application provides a wireless device, including the multi-band radio frequency circuit described above; or

[0073] The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the steps of the above frequency band adjustment method are implemented when the processor executes the computer program.

[0074] The above-mentioned wireless device has the beneficial effects of the solutions provided in the first and second aspects above, which will not be repeated here.

[0075] Figure 5 Schematic diagram of a wireless device provided by an embodiment of the present application. Figure 5As shown, the wireless device 5 of this embodiment includes: a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the processor 50. When the processor 50 executes the computer program 52, the steps in the above-mentioned frequency band adjustment method embodiment based on the above-mentioned multi-band radio frequency circuit are implemented, for example Figure 4 Alternatively, when the processor 50 executes the computer program 52, the functions of the modules / units in the above-mentioned device embodiments are realized.

[0076] Exemplarily, the computer program 52 may be divided into one or more modules / units, which are stored in the memory 51 and executed by the processor 50 to implement the present application. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program 52 in the wireless device 5.

[0077] The wireless device 5 can be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The wireless device 5 can include, but is not limited to, a processor 50 and a memory 51. Those skilled in the art will understand that Figure 5 It is only an example of the wireless device 5 and does not constitute a limitation of the wireless device 5. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the wireless device 5 may also include input and output devices, network access devices, buses, etc.

[0078] The processor 50 may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0079] The memory 51 can be an internal storage unit of the wireless device 5, such as a hard drive or memory of the wireless device 5. The memory 51 can also be an external storage device of the wireless device 5, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the wireless device 5. Furthermore, the memory 51 can include both an internal storage unit of the wireless device 5 and an external storage device. The memory 51 is used to store the computer program and other programs and data required by the wireless device 5. The memory 51 can also be used to temporarily store data that has been output or is about to be output.

[0080] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A multi-band radio frequency circuit, comprising: Controller; a transceiver, connected to the controller, for receiving or sending radio frequency signals; A plurality of front-end modules are respectively connected to the transceiver and used for transmitting and receiving amplification of the radio frequency signal; Characterized in that, the multi-band radio frequency circuit further includes: A plurality of antenna units, each antenna unit having at least two resonant frequency bands; a plurality of groups of matching links, each group of matching links being matched and coupled with the corresponding antenna unit, and each group of matching links including the same number of matching links as the number of frequency bands of each antenna unit; a plurality of first RF switches, wherein one first RF switch is connected between each front-end module and each set of matching links, and the controller is configured to control each first RF switch to switch to the matching link of the front-end module to implement frequency band switching; The controller is configured to: Real-time monitoring of the number of access devices and the percentage of the actual throughput of each access device to the current link negotiation rate; Dynamically control the switching of the first RF switch according to the monitoring result, wherein: When there is only one access device, switching all the first radio frequency switches to the matching links of the same frequency band, so that all the antenna units operate in the frequency band required by the access device; When there are multiple access devices, the number of antenna units in different frequency bands is allocated according to the actual throughput ratio of each access device.

2. The multi-band radio frequency circuit according to claim 1, wherein: Each of the antenna units includes at least two single-frequency antennas of different frequency bands, and each of the single-frequency antennas is connected to the first radio frequency switch via a corresponding matching link.

3. The multi-band radio frequency circuit according to claim 1, wherein: It also includes multiple second RF switches, each of the antenna units includes a multi-frequency antenna, and the second RF switches are connected between the multi-frequency antenna and the matching link. The controller is configured to control each of the first RF switches and each of the second RF switches to switch to the matching link of the front-end module to achieve frequency band switching.

4. The multi-band radio frequency circuit according to any one of claims 1 to 3, wherein: It also includes at least one 2.4G module, which is connected to the controller and is used to radiate or receive the radio frequency signal in a resonant frequency band of 2.4 GHz.

5. The multi-band radio frequency circuit according to any one of claims 1 to 3, wherein: The controller is configured to control each of the first RF switches to switch to the matching link of the front-end module based on the percentage of the throughput supported by the current link negotiation rate occupied by the actual throughput and / or the frequency band required by the number of access devices, so as to achieve frequency band switching.

6. The multi-band radio frequency circuit according to any one of claims 1 to 3, wherein: The frequency bands include 5G band 1 and 5G band 4.

7. The multi-band radio frequency circuit according to any one of claims 1 to 3, wherein: There are four antenna units and four front-end modules.

8. A frequency band adjustment method based on the multi-band radio frequency circuit according to any one of claims 1 to 7, characterized in that: The frequency band adjustment method includes: Monitor each access device; Determining the frequency band required by each access device based on the monitoring results; Based on the frequency band required by each of the access devices, the first radio frequency switch is controlled to switch access to the matching link of the front-end module.

9. The frequency band adjustment method according to claim 8, wherein: The monitoring result includes the number of the access devices and the percentage of the actual throughput of each access device occupied by the throughput supported by the current link negotiation rate; The controlling the first RF switch to switch to the matching link of the front-end module based on the frequency band required by each access device includes: If there is only one access device, controlling all the first radio frequency switches to switch to the matching link corresponding to the frequency band required by the access device, wherein the frequency band required by the access device is the same frequency band; If there are multiple access devices, the number of matching links corresponding to the frequency band required by the access device that are switched to by each first RF switch is controlled according to the percentage of the actual throughput of each access device occupied by the throughput supported by the current link negotiation rate.

10. A wireless device, characterized in that: A multi-band radio frequency circuit comprising the multi-band radio frequency circuit according to any one of claims 1 to 6; or The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the frequency band adjustment method according to claim 8 or 9 when executing the computer program.

Images