A communication device

Abstract

A communication apparatus comprising: a first radio frequency receiving circuit, an operating frequency band of the first radio frequency receiving circuit comprising a first frequency band, wherein the first radio frequency receiving circuit comprises a first amplifier and a first filter; a second radio frequency receiving circuit, an operating frequency band of the second radio frequency receiving circuit comprising a second frequency band, wherein the second radio frequency receiving circuit comprises a second amplifier and a second filter; and a wideband radio frequency receiving circuit, an operating frequency band of the wideband radio frequency receiving circuit comprising the first frequency band and the second frequency band, wherein the wideband radio frequency receiving circuit comprises at least one amplifier and at least one filter.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a communication device. Background Art

[0002] With the advancement of communication technology, terminal devices support an increasing number of network types. Some terminal devices can simultaneously support multiple mobile communication networks, such as at least two of the 2G, 3G, 4G, and 5G networks. Therefore, terminal devices need to support operation in multiple frequency bands. Furthermore, terminal devices must support not only the frequency bands covered by domestic mobile communication networks, but also the frequency bands covered by mobile communication networks roaming abroad. This places increasingly stringent requirements on the terminal device's RF front-end, and the terminal device's RF front-end circuitry is also becoming increasingly complex. Therefore, improving the communication performance of terminal devices is an urgent issue that needs to be addressed. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a communication device to improve the communication performance of the communication device.

[0004] It should be understood that in the solutions provided herein, the communication device may be a wireless communication device or a component of a wireless communication device, such as an integrated circuit product such as a system chip or a communication chip. The wireless communication device may be a computer device that supports wireless communication functions.

[0005] Specifically, a wireless communication device may be a terminal such as a smartphone, or a wireless access network device such as a base station. A system chip may also be referred to as a system on chip (SoC), or simply as an SoC chip. A communication chip may include a baseband processing chip and a radio frequency integrated circuit. A baseband processing chip is sometimes also referred to as a modem or baseband chip. A radio frequency integrated circuit is sometimes also referred to as a radio frequency transceiver or radio frequency chip. In physical implementation, some or all of the chips in a communication chip may be integrated inside a SoC chip. For example, a baseband processing chip is integrated into a SoC chip, and a radio frequency integrated circuit is not integrated with the SoC chip.

[0006] In a first aspect, a communication device is provided, comprising: a first RF receiving circuit, wherein an operating frequency band of the first RF receiving circuit includes a first frequency band, wherein the first RF receiving circuit includes a first amplifier and a first filter; a second RF receiving circuit, wherein an operating frequency band of the second RF receiving circuit includes a second frequency band, wherein the second RF receiving circuit includes a second amplifier and a second filter; and a broadband RF receiving circuit, wherein an operating frequency band of the broadband RF receiving circuit includes the first frequency band and the second frequency band, wherein the broadband RF receiving circuit includes at least one amplifier and at least one filter.

[0007] In the above communication device, the broadband RF receiving circuit has a simple structure and can assist the first RF receiving circuit and / or the second RF receiving circuit in receiving signals without increasing the cost, thereby improving the communication performance of the communication device.

[0008] In an optional implementation, at least one filter of the broadband radio frequency receiving circuit includes a tunable filter, wherein an operating frequency band of the tunable filter is configured to include any one of the first frequency band and the second frequency band.

[0009] In the above communication device, the adjustable filter in the broadband RF receiving circuit has a relatively wide receiving frequency range, and the filtering performance can be adjusted according to the operating frequency band, so that the broadband RF receiving circuit can be flexibly configured to receive signals in any frequency band.

[0010] In an optional implementation, the amplifier in the broadband RF receiving circuit is a low-noise amplifier, which can be used to linearly amplify small signals; the operating frequency of the low-noise amplifier can be in the frequency range of 100 MHz to 5 GHz, and can have good noise figure and gain performance.

[0011] In an optional implementation, at least one filter of the broadband RF receiving circuit includes at least two filters, wherein the operating frequency band of one of the at least two filters is configured to include the first frequency band, and the operating frequency band of another of the at least two filters is configured to include the second frequency band.

[0012] In an optional implementation, the first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the second frequency band, and the broadband RF receiving circuit is not configured to receive signals in the first frequency band or the second frequency band.

[0013] In an optional implementation, the first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is not configured to receive signals in the second frequency band, and the broadband RF receiving circuit is configured to receive signals in the second frequency band.

[0014] In an optional implementation, the first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the second frequency band, and the broadband RF receiving circuit is configured to receive signals in the first frequency band.

[0015] In an optional implementation, the first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the first frequency band, and the broadband RF receiving circuit is configured to receive signals in the second frequency band.

[0016] In an optional implementation, the broadband radio frequency receiving circuit is further coupled to at least one antenna, and the frequency bands supported by the antenna include the first frequency band and the second frequency band.

[0017] In an optional implementation, the communication device is configured to provide communication services to a user module, wherein the communication frequency band of the user module includes the first frequency band and the second frequency band.

[0018] In an optional implementation, the communication device is configured to provide communication services to at least two user modules, wherein the at least two user modules include a first user module and a second user module, wherein the communication frequency band of the first user module includes the first frequency band, and the communication frequency band of the second user module includes the second frequency band.

[0019] In an optional implementation manner, the first frequency band and the second frequency band are frequency bands within the same frequency band interval; or the frequency of the first frequency band overlaps with the frequency of the second frequency band.

[0020] In an optional implementation, the first frequency band is frequency band B1 or B3 or B39 or B41, and the second frequency band is frequency band B1 or B3 or B39 or B41; or, the first frequency band is frequency band B8 or n77 or n78, and the second frequency band is frequency band B8 or n77 or n78. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a wireless communication system architecture applicable to an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of a radio frequency front-end structure provided in an embodiment of the present application;

[0024] Figure 4 A schematic diagram of another communication device structure provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of the structure of a broadband radio frequency receiving circuit provided in an embodiment of the present application;

[0026] FIG6( a ) is a schematic diagram of another broadband radio frequency receiving circuit structure provided in an embodiment of the present application;

[0027] FIG6( b ) is a schematic diagram of another broadband radio frequency receiving circuit structure provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of time division multiplexing provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of radio frequency resource allocation provided in an embodiment of the present application;

[0030] Figure 9 A schematic diagram of radio frequency resource allocation provided in an embodiment of the present application;

[0031] Figure 10 A schematic diagram of radio frequency resource allocation provided in an embodiment of the present application;

[0032] Figure 11 A schematic diagram of a signal receiving method provided in an embodiment of the present application;

[0033] Figure 12 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0034] Figure 13 A schematic diagram of an application scenario provided for an embodiment of the present application. DETAILED DESCRIPTION

[0035] The technical solution provided by the present application is further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and business scenarios provided in the examples of the present application are mainly for explaining some possible implementation methods of the technical solution of the present application and should not be interpreted as a unique limitation on the technical solution of the present application. Those skilled in the art will appreciate that with the evolution of the system and the emergence of newer business scenarios, the technical solution provided by the present application can still be applicable to the same or similar technical problems.

[0036] It should be understood that in the technical solutions provided by the embodiments of the present application, some repetitions may not be repeated in the introduction of the following specific embodiments, but these specific embodiments should be regarded as having been referenced to each other and can be combined with each other.

[0037] The present application can be applied to new radio (NR) systems, global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) systems, general packet radio service (GPRS), long term evolution (LTE) systems, advanced long term evolution (LTE-A) systems, universal mobile telecommunication systems (UMTS), evolved long term evolution (eLTE) systems, future communication systems and other communication systems, and is not limited to specific ones.

[0038] In wireless communication systems, devices can be divided into those that provide wireless network services and those that use them. Devices that provide wireless network services are those that make up the wireless communication network and can be referred to as network equipment or network elements. Network equipment typically belongs to operators or infrastructure providers, who are responsible for their operation and maintenance. Network equipment can be further divided into radio access network (RAN) equipment and core network (CN) equipment. Typical RAN equipment includes base stations (BS).

[0039] It should be understood that a base station may sometimes also be referred to as an access point (AP) or a transmission reception point (TRP). Specifically, a base station may be a generation Node B (gNB) in a 5G new radio (NR) system or an evolutionary Node B (eNB) in a 4G long term evolution (LTE) system. Depending on the physical form or transmit power of the base station, the base station may be divided into a macro base station or a micro base station. A micro base station is sometimes also referred to as a small base station or a small cell.

[0040] A device that uses wireless network services can be referred to as a terminal. The terminal can establish a connection with the network device and provide specific wireless communication services to the user based on the services of the network device. It should be understood that due to the closer relationship between the terminal and the user, it is sometimes also called user equipment (UE) or subscriber unit (SU). In addition, compared with base stations that are usually placed in fixed locations, terminals often move with users and are sometimes also called mobile stations (MS). In addition, some network devices, such as relay nodes (RN) or wireless routers, are sometimes also considered terminals because they have UE identities or belong to users.

[0041] Specifically, the terminal can be a mobile phone, a tablet computer, a laptop computer, a wearable device (such as a smart watch, a smart bracelet, a smart helmet, and smart glasses), and other devices with wireless access capabilities, such as smart cars, various Internet of Things (IoT) devices, including various smart home devices (such as smart meters and smart appliances) and smart city devices (such as security or monitoring equipment, and smart road traffic facilities).

[0042] For ease of description, this application will take a base station and a terminal as an example to describe in detail the technical solutions of the embodiments of the present application.

[0043] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an embodiment of the present application. Figure 1As shown in Figure 1, a wireless communication system includes terminals and base stations. Depending on the transmission direction, the transmission link from the terminal to the base station is referred to as the uplink (UL), and the transmission link from the base station to the terminal is referred to as the downlink (DL). Similarly, data transmission in the uplink can be simply referred to as uplink data transmission or uplink transmission, and data transmission in the downlink can be simply referred to as downlink data transmission or downlink transmission.

[0044] In this wireless communication system, a base station can provide communication coverage for a specific geographic area through integrated or external antenna equipment. One or more terminals within the communication coverage area of ​​the base station can access the base station. A base station can manage one or more cells. Each cell has an identification, which is also called a cell identity (cell ID). From the perspective of wireless resources, a cell is a combination of downlink wireless resources and its paired uplink wireless resources (optional).

[0045] It should be understood that the wireless communication system may comply with the wireless communication standards of the Third Generation Partnership Project (3GPP), or may comply with other wireless communication standards, such as the 802 series (such as 802.11, 802.15, or 802.20) of the Institute of Electrical and Electronics Engineers (IEEE). Figure 1 Although only one base station and one terminal are shown in the figure, the wireless communication system may also include other numbers of terminals and base stations. In addition, the wireless communication system may also include other network devices, such as core network devices.

[0046] The terminal and base station should be aware of the predefined configuration of the wireless communication system, including the radio access technology (RAT) supported by the system and the wireless resource configuration specified by the system, such as the basic configuration of the radio frequency band and carrier. The carrier is a frequency range that complies with the system regulations. This frequency range can be determined by the center frequency of the carrier (denoted as the carrier frequency) and the bandwidth of the carrier. These system-predefined configurations can be part of the standard protocol of the wireless communication system, or determined through interaction between the terminal and the base station. The content of the relevant standard protocol may be pre-stored in the memory of the terminal and the base station, or embodied in the hardware circuit or software code of the terminal and the base station.

[0047] In this wireless communication system, the terminal and base station support one or more of the same RATs, such as 5G NR, 4G LTE, or RATs of future evolution systems. Specifically, the terminal and base station use the same air interface parameters, coding scheme, and modulation scheme, and communicate with each other based on system-defined radio resources.

[0048] Figure 2 A schematic structural diagram of a communication device provided in an embodiment of the present application.

[0049] The communication device may be a terminal or other equipment. Figure 2 As shown, the communication device may include an application subsystem, memory, massive storage, a baseband subsystem, a radio frequency integrated circuit (RFIC), a radio frequency front end (RFFE), a broadband radio frequency receiving circuit, and an antenna (ANT). These components may be coupled via various interconnect buses or other electrical connection methods. The RFIC may also be referred to as a radio frequency transceiver module.

[0050] Figure 2 In the embodiment, the broadband RF receiving circuit can be coupled with the RFIC and at least one antenna. The specific implementation method is not limited. The broadband RF receiving circuit can include at least one amplifier and at least one filter, wherein the amplifier here can refer to a low noise amplifier.

[0051] Figure 2 In the figure, ANT_1 represents the first antenna, and so on. ANT_N represents the Nth antenna, where N is a positive integer greater than 1. Tx represents the transmit path, Rx represents the receive path, and different numbers represent different paths. FBRx represents the feedback receive path, PRx represents the main receive path, and DRx represents the diversity receive path. HB represents high frequency, and LB represents low frequency, both of which refer to the relative high and low frequencies. BB represents baseband. It should be understood that Figure 2 The marks and components are for illustration purposes only and are only used as one possible implementation method. The embodiments of the present application also include other implementation methods.

[0052] Among them, the application subsystem can serve as the main control system or main computing system of the communication device, used to run the main operating system and application programs, manage the software and hardware resources of the entire communication device, and provide a user interface for the user. The application subsystem may include one or more processing cores. In addition, the application subsystem may also include driver software related to other subsystems (such as the baseband subsystem). The baseband subsystem may also include one or more processing cores, as well as a hardware accelerator (HAC) and cache.

[0053] Figure 2 In the communication device, the RF front end is coupled with the RFIC and is used to transmit and receive signals in the frequency band supported by the communication device; the RF front end and the RFIC can together form the RF subsystem. The RF subsystem can be further divided into an RF receive path and an RF transmit path. The RF receive path can receive the RF signal through the antenna, process the RF signal (such as amplification, filtering and down-conversion) to obtain a baseband signal, and pass it to the baseband subsystem. The RF transmit path can receive the baseband signal from the baseband subsystem, perform RF processing on the baseband signal (such as up-conversion, amplification and filtering) to obtain an RF signal, and finally radiate the RF signal into space through the antenna.

[0054] Figure 2 In the baseband subsystem, useful information or data bits can be extracted from the baseband signal, or converted into a baseband signal to be transmitted. These information or data bits can be data representing user data such as voice, text, video, or control information. For example, the baseband subsystem can perform signal processing operations such as modulation and demodulation, encoding, and decoding. Different wireless access technologies, such as 5G NR and 4G LTE, often have different baseband signal processing operations. Therefore, to support the integration of multiple mobile communication modes, the baseband subsystem can include multiple processing cores or multiple HACs.

[0055] Furthermore, since RF signals are analog signals, and the signals processed by the baseband subsystem are primarily digital signals, the communication device also requires an analog-to-digital converter. Analog-to-digital converters include analog-to-digital converters (ADCs) that convert analog signals into digital signals, and digital-to-analog converters (DACs) that convert digital signals into analog signals. In the embodiments of the present application, the analog-to-digital converter can be located in either the baseband subsystem or the RF subsystem.

[0056] It should be understood that in the embodiments of the present application, the processing core may represent a processor, which may be a general-purpose processor or a processor designed for a specific field. For example, the processor may be a central processing unit (CPU) or a digital signal processor (DSP). The processor may also be a microcontroller (MCU), a graphics processing unit (GPU), an image signal processor (ISP), an audio signal processor (ASP), and a processor specially designed for artificial intelligence (AI) applications. AI processors include but are not limited to neural network processing units (NPUs), tensor processing units (TPUs), and processors referred to as AI engines.

[0057] Hardware accelerators can be used to implement sub-functions with high processing overhead, such as data packet assembly and parsing, and data packet encryption and decryption. These sub-functions can also be implemented using general-purpose processors, but hardware accelerators may be more appropriate due to performance or cost considerations. Therefore, the type and number of hardware accelerators can be selected based on specific needs. In specific implementations, one or a combination of field programmable gate arrays (FPGAs) and application-specific integrated circuits (ASICs) can be used. Of course, one or more processing cores can also be used in hardware accelerators.

[0058] Memory can be divided into volatile memory and non-volatile memory (NVM). Volatile memory refers to memory that loses its stored data if the power supply is interrupted. Currently, volatile memory is mainly random access memory (RAM), including static random access memory (SRAM) and dynamic random access memory (DRAM). Non-volatile memory refers to memory that maintains its stored data even if the power supply is interrupted. Common non-volatile memories include read-only memory (ROM), optical disks, magnetic disks, and various memories based on flash memory technology. Generally speaking, volatile memory can be used for memory, and non-volatile memory, such as magnetic disks or flash memory, can be used for large-capacity storage.

[0059] In an embodiment of the present application, the baseband subsystem and the radio frequency subsystem together constitute a communication subsystem, which provides wireless communication functions for the communication device. Generally, the baseband subsystem is responsible for managing the software and hardware resources of the communication subsystem, and can configure the operating parameters of the radio frequency subsystem. One or more processing cores of the baseband subsystem can be integrated into one or more chips, which can be called a baseband processing chip or a baseband chip. Similarly, an RFIC can be called a radio frequency processing chip or a radio frequency module. In addition, as technology evolves, the functional division of the radio frequency subsystem and the baseband subsystem in the communication subsystem can also be adjusted. For example, part of the functions of the radio frequency subsystem are integrated into the baseband subsystem, or part of the functions of the baseband subsystem are integrated into the radio frequency subsystem. In actual applications, based on the needs of the application scenario, the communication device can adopt a combination of different numbers and types of processing cores.

[0060] In the embodiment of the present application, the communication device (eg Figure 2 The communication device shown in FIG. 1 can provide communication services to at least one user simultaneously. When the communication device provides communication services to two users, the two users can be attached to a cell in a first network and a cell in a second network, respectively, and one user can maintain a wireless connection with the cell in the first network, while the other user can camp on the cell in the second network.

[0061] In an embodiment of the present application, the communication device may have a dual registration function. A communication device with a dual registration function generally has a dual-receive single-transmit or dual-receive dual-transmit capability, that is, when the communication device provides communication services for at least one user, it can simultaneously receive downlink data transmitted by the first network and the second network, and send uplink data to the first network and / or the second network. For example, the first user module and the second user module can be coupled to the communication device, and the communication device may include the first user module and the second user module. The first user module and the second user module may also be modules independent of the communication device. The communication device can obtain the identity information of the first user through the first user module, establish protocol stack information associated with the first user, etc. The first user module is used to enable the first user to attach to the first network, that is, to enable the communication device (or user equipment) to attach to the first network as the first user; the communication device can obtain the identity information of the second user through the second user module, establish protocol stack information associated with the second user, etc. The second user module is used to enable the communication device (or UE) to attach to the second network as the second user.

[0062] The first network and the second network can be networks of the same type or different types. For example, the first network can be an LTE network or an NR network; the second network can be an LTE network or an NR network, etc. The embodiment of the present application is not limited to this.

[0063] It should be noted that in the embodiment of the present application, "user" is a logical concept. The "user" can correspond to a (subscriber identity module, SIM) card or subscriber information or a virtual SIM card or user identity (such as an international mobile subscriber identity (IMSI) / temporary mobile subscriber identity (TMSI)), and is not limited to natural person users or physical terminals (mobile phones). From the perspective of the network side, different "users" logically correspond to different communication entities served by the network side. For example, a terminal with a dual registration function is two communication entities for the network side. For another example, when a "user" corresponds to a SIM card or subscriber information, the network side will identify two terminals with different SIM cards or different subscriber information as two different communication entities, and will also identify the same terminal device with multiple different SIM cards or multiple subscriber information as multiple different communication entities, even if in fact, the terminal with multiple different SIM cards or multiple subscriber information is only one physical entity.

[0064] like Figure 3, which is a schematic diagram of a radio frequency front-end structure provided in an embodiment of the present application.

[0065] In the embodiment of the present application, the RF front end may include at least one RF receiving circuit and at least one RF transmitting circuit. If the communication device supports a frequency division duplex (FDD) system, one RF receiving circuit and one RF transmitting circuit in the RF front end may be as follows: Figure 3 As shown on the right side, it includes electronic components such as a radio frequency switch, an amplifier (for example, a low noise amplifier (LNA)), a power amplifier (PA), a filter, and a duplexer. If the communication device supports a time division duplexing (TDD) system, a radio frequency receiving circuit and a radio frequency transmitting circuit in the radio frequency front end can be as shown in FIG. Figure 3 As shown on the left, it includes electronic devices such as RF switches, amplifiers (such as low-noise amplifiers), power amplifiers, filters, etc.; these electronic devices can be integrated into one or more chips as needed.

[0066] Among them, the power amplifier is responsible for amplifying the RF signal of the RF transmitting circuit; the filter is responsible for filtering the transmitting and receiving signals, and is responsible for frequency selection to ensure that signals are transmitted at different frequencies without interfering with each other; the duplexer is responsible for the duplex switching of the FDD system and the RF signal filtering of the receiving / transmitting path; the RF switch is responsible for switching between the RF receiving circuit and the RF transmitting circuit; the low-noise amplifier is mainly used for amplifying small signals in the RF receiving circuit.

[0067] In the embodiment of the present application, the PA in the RF transmitting circuit can be an independent module, and the filter in the RF receiving circuit can also be an independent module and not integrated into the RF front end. Figure 4 , which is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. Figure 4 In the RF front-end, the PA in the RF transmitting circuit is an independent module, and the filter in the RF receiving circuit is an independent module, both of which are located outside the RF front-end.

[0068] It should be noted that the above are only examples. The detailed structure of the RF front end may exist in various forms. The embodiments of the present application are not limited to this, and will not be illustrated one by one here.

[0069] In an embodiment of the present application, the RF front end can operate in multiple frequency bands. For example, the RF front end can operate in at least three frequency bands: low band (LB), ranging from 700MHz to 900MHz; middle high band (MNB), ranging from 1400MHz to 2700MHz; ultra high band (UHB), ranging from 3000MHz to 5900MHz). The frequency bands included in these three frequency bands can be as shown in Table 1.

[0070] Table 1

[0071]

[0072] It should be noted that the frequency range corresponding to each frequency band in Table 1 can be referred to the description in the prior art and will not be repeated here.

[0073] In an embodiment of the present application, when the RF front end includes at least one RF receiving circuit and at least one RF transmitting circuit, each RF receiving circuit can operate in one or more frequency bands, that is, each RF receiving circuit can receive signals in one or more frequency bands; each RF transmitting circuit can operate in one or more frequency bands, that is, each RF transmitting circuit can transmit signals in one or more frequency bands.

[0074] For example, taking an example where the RF front end includes a first RF receiving circuit and a second RF receiving circuit, the operating frequency band of the first RF receiving circuit may include a first frequency band, wherein the first RF receiving circuit includes a first amplifier and a first filter; the first amplifier may be a low-noise amplifier. The operating frequency band of the second RF receiving circuit may include a second frequency band, wherein the second RF receiving circuit includes a second amplifier and a second filter; and the second amplifier may be a low-noise amplifier.

[0075] In the embodiment of the present application, the second frequency band may be different from the first frequency band, or may be the same as the first frequency band.

[0076] For example, in one implementation, the first frequency band and the second frequency band are frequency bands within the same frequency band range; or the frequency of the first frequency band overlaps with the frequency of the second frequency band, where the overlap refers to full overlap or partial overlap.

[0077] In another implementation, the first frequency band is frequency band B1 or B3 or B39 or B41, and the second frequency band is frequency band B1 or B3 or B39 or B41; or, the first frequency band is frequency band n77 or n78, and the second frequency band is frequency band n77 or n78; or, the first frequency band is frequency band B8, and the second frequency band is frequency band B8.

[0078] In conjunction with the foregoing description, in embodiments of the present application, the communication device may operate in at least one frequency band. For example, the communication device is configured to provide communication services to a user module, where the communication frequency band of the user module includes the first frequency band and the second frequency band. In this case, the first RF receiving circuit in the communication device receives signals in the first frequency band for the user module, and the second RF receiving circuit receives signals in the second frequency band for the user module.

[0079] For another example, the communication device is configured to provide communication services to at least two user modules, including a first user module and a second user module, wherein the communication frequency band of the first user module includes the first frequency band, and the communication frequency band of the second user module includes the second frequency band. In this case, the first RF receiving circuit in the communication device receives signals in the first frequency band for the first user module, and the second RF receiving circuit receives signals in the second frequency band for the second user module.

[0080] In an embodiment of the present application, the communication device further includes a broadband radio frequency receiving circuit. The broadband radio frequency receiving circuit can be used for auxiliary reception. In one possible scenario, the communication device can provide communication services for one or two user modules. When the radio frequency resources occupied by the communication device in the two user modules conflict, the broadband radio frequency receiving circuit is allocated to one of the user modules to improve the communication reception performance. In an embodiment of the present application, the broadband radio frequency receiving circuit can have a low hardware cost, a relatively wide receiving frequency range, and the filtering performance can be adjusted according to the working frequency band, so that it can flexibly work in various frequency bands according to actual needs.

[0081] As previously mentioned, in the embodiments of the present application, the broadband RF receiving circuit may include at least one amplifier and at least one filter. The amplifier may be a low-noise amplifier for linearly amplifying small signals, and the filter may be a tunable filter.

[0082] For example, if Figure 5 , which is a schematic structural diagram of a broadband radio frequency receiving circuit provided in an embodiment of the present application.

[0083] The broadband radio frequency receiving circuit is coupled with an antenna. Figure 5In the example, a broadband RF receiving circuit includes a filter and an amplifier. The input of the filter is coupled to the antenna, the output of the filter is coupled to the amplifier, and the output of the amplifier is coupled to the RF front end. The filter included in the broadband RF receiving circuit is a tunable filter, and the operating frequency band of the tunable filter can be configured to include any frequency band. For example, when the RF front end includes a first RF receiving circuit and a second RF receiving circuit, the operating frequency band of the tunable filter can be configured to include any frequency band of the first frequency band and the second frequency band.

[0084] It should be noted that the first filter in the first RF receiving circuit may be specifically designed for an operating frequency band that includes the first frequency band. Therefore, the filtering performance of the first filter in the first RF receiving circuit when its operating frequency band includes the first frequency band may be superior to the filtering performance of the tunable filter when its operating frequency band includes the first frequency band. Correspondingly, the filtering performance of the second filter in the second RF receiving circuit when its operating frequency band includes the second frequency band may be superior to the filtering performance of the tunable filter when its operating frequency band includes the second frequency band.

[0085] It should be noted that the at least one antenna coupled to the broadband RF receiving circuit supports a frequency band including an operating frequency band of the broadband RF receiving circuit, for example, the first frequency band and the second frequency band.

[0086] Figure 6(a) shows a schematic diagram of another broadband RF receiving circuit structure provided by an embodiment of the present application. The broadband RF receiving circuit includes two filters (a first filter and a second filter) and an amplifier. The input of the first filter is coupled to the output of the amplifier, the input of the amplifier is coupled to the output of the second filter, and the input of the second filter is coupled to the antenna. Both the first filter and the second filter are tunable filters.

[0087] As shown in Figure 6(b), it is a schematic diagram of the structure of another broadband radio frequency receiving circuit provided in an embodiment of the present application. The broadband radio frequency receiving circuit includes two filters (a first filter and a second filter) and an amplifier. The input ends of the first filter and the second filter are coupled to the antenna through a switching switch, and the output ends of the first filter and the second filter are coupled to the amplifier. In actual application, the operating frequency band of the first filter can be configured to include a first frequency band (or other frequency bands), and the operating frequency band of the second filter can be configured to include a second frequency band (or other frequency bands). One of the filters can be selected for filtering by switching the switch according to actual conditions.

[0088] It should be noted that the first filter and the second filter in FIG6( b ) may be tunable filters or may not be tunable filters.

[0089] In an embodiment of the present application, the parameters of the amplifier and filter in the broadband RF receiving circuit can be adjusted. For example, by adjusting parameters such as the capacitance or inductance of the filter, the operating frequency band of the filter in the broadband RF receiving circuit can be configured to be a first frequency band or a second frequency band or other frequency bands; the operation of the amplifier in the broadband RF receiving circuit can be configured to be a first frequency band or a second frequency band or other frequency bands, so that interference outside the operating frequency band of the amplifier can be suppressed, and thus the broadband RF receiving circuit can be used to receive signals in the corresponding frequency band.

[0090] In the embodiments of the present application, the operating frequency of at least one amplifier in the broadband RF receiving circuit can be designed to be very wide, generally in the frequency range of 100 MHz to 5 GHz, and can achieve good noise figure and gain performance. The frequency range of the filter in the broadband RF receiving circuit can be in the range of 700 MHz to 4.5 GHz, covering the three frequency ranges of 700 MHz to 900 MHz, 1400 MHz to 2700 MHz, and 3100 MHz to 4500 MHz, respectively.

[0091] In actual applications, the broadband RF receiving circuit can operate in a specific operating frequency band. Each frequency band will have corresponding operating parameter configurations, such as the operating parameters of the filter and the operating parameters of the LNA. The present application can pre-acquire the operating parameters of the filter and the operating parameters of the amplifier corresponding to each frequency band through experimental parameter extraction or production line calibration. For example, as shown in Table 2, the present application can pre-store the operating parameters of the filter and the operating parameters of the amplifier corresponding to different frequency bands. When the broadband RF receiving circuit is required to operate in a specified frequency band, the parameter configuration corresponding to the specified frequency band can be loaded.

[0092] Table 2

[0093]

[0094] In an embodiment of the present application, when the communication device operates in at least one frequency band, there may be at least three operating modes. The following description is based on an example in which the communication device is configured to provide communication services to a first user module and a second user module. Other situations can be deduced by analogy and will not be repeated here.

[0095] Working method 1:

[0096] The first user module and the second user module need to communicate in different time periods, using time-division multiplexing to occupy radio frequency resources. In this case, the first and second radio frequency receiving circuits in the communication device can operate in different time periods. The radio frequency resources include, but are not limited to, antennas, radio frequency switches, duplexers, filters in the receiving path, PAs, radio frequency front ends, and radio frequency transceiver modules.

[0097] For example, if Figure 7 As shown, a time division multiplexing schematic diagram provided in an embodiment of the present application. The communication device is configured to provide communication services to a first user module and a second user module, wherein the communication frequency band of the first user module includes the first frequency band, and the communication frequency band of the second user module includes the second frequency band. The first user module operates in time window 1, and the second user module operates in its time window 2, and the first user module and the second user module use the RF front-end resources in an interleaved manner using time division multiplexing. For example, in time window 1, the first user module uses the RFIC, RF front-end and antenna of the communication device to transmit and receive signals; in time window 2, the second user module uses the RFIC, RF front-end and antenna of the communication device to transmit and receive signals. At this time, the first RF receiving circuit can be configured to receive signals in the first frequency band, and the second RF receiving circuit can be configured to receive signals in the second frequency band.

[0098] In the first working mode, since there is no conflict in occupying radio frequency resources, the communication device may not enable the broadband radio frequency receiving circuit. At this time, the broadband radio frequency receiving circuit is not configured to receive signals in the first frequency band or the second frequency band.

[0099] It should be noted that, in the first working mode, if the signal of a user module becomes weak, the broadband radio frequency receiving circuit may be enabled to assist the user module in signal reception.

[0100] Working method 2:

[0101] The working time periods of the first user module and the second user module overlap, but the working frequency bands do not conflict. At this time, the first user module and the second user module can occupy radio frequency resources in a frequency division multiplexing manner.

[0102] For example, the first user module operates in a first frequency band, such as the B8 frequency band of LTE, and the second user module operates in a second frequency band, such as the n41 frequency band of NR. Therefore, a portion of the RF resources in the communication device can be configured for the first user module, and another portion of the RF resources can be configured for the second user module. Specifically, the first RF receiving circuit of the RF front end in the communication device can be configured for the first user module, and the second RF receiving circuit can be configured for the second user module. In this case, the first RF receiving circuit is configured to receive signals in the first frequency band, and the second RF receiving circuit is not configured to receive signals in the second frequency band.

[0103] It should be noted that, in the second working mode, whether to enable the broadband radio frequency receiving circuit can be determined based on actual conditions, and this application does not limit this.

[0104] Working method three:

[0105] The first user module and the second user module in the communication device have overlapping operating times and conflicting operating frequency bands. As a result, the RF resources used in the RF front end also conflict. Therefore, it is necessary to flexibly configure the user module with the right to use the broadband RF receiving circuit according to the actual situation. The following describes different scenarios.

[0106] In scenario 1, the communication frequency band of the first user module includes the first frequency band, and the communication frequency band of the second user module includes the second frequency band. The first frequency band and the second frequency band conflict, for example, they are in the same frequency band interval. The RF resources occupied by each user module are preconfigured. For example, the first user module occupies some resources in the RF front-end, and the second user module occupies other resources in the RF front-end.

[0107] For example, if Figure 8 As shown, it is a schematic diagram of a resource allocation method provided in an embodiment of the present application. The radio frequency resources occupied by the first user module may include the first radio frequency receiving circuit in the radio frequency front end, that is, the first radio frequency receiving circuit is configured to receive signals in the first frequency band.

[0108] The radio frequency resources occupied by the second user module may include a second radio frequency receiving circuit, that is, the second radio frequency receiving circuit is configured to receive signals in the second frequency band. Allocating radio frequency resources in this way can ensure that both the first user module and the second user module can receive signals.

[0109] It should be noted that Figure 8This is merely an example. The configuration can also be reversed, that is, the first RF receiving circuit is assigned to the second user module, and the second RF receiving circuit is assigned to the first user module. In this case, the first RF receiving circuit is configured to receive signals in the second frequency band, and the second RF receiving circuit is configured to receive signals in the first frequency band. Other configurations are also possible, and this application will not further illustrate each one.

[0110] In scenario one, the broadband RF receiving circuit is not configured for any user module by default, that is, the broadband RF receiving circuit is not configured to receive signals in the first frequency band or the second frequency band. When the signal of one of the first and second user modules becomes weak, or the priority of the service executed by one of the user modules becomes higher, the broadband RF receiving circuit can be configured for that user module. For details, please refer to the following description and will not be repeated here.

[0111] In scenario 2, the radio frequency resources occupied by each user module are pre-configured. For example, the first user module occupies part of the resources in the radio frequency front end, and the second user module occupies another part of the resources in the radio frequency front end and the broadband radio frequency receiving circuit.

[0112] Assume that the communication frequency band of the first user module includes the first frequency band, the communication frequency band of the second user module includes the second frequency band, and the first frequency band and the second frequency band conflict, for example, in the same frequency band interval. Figure 9 FIG2 is a schematic diagram of a resource allocation method provided by an embodiment of the present application. In scenario 2, the radio frequency resources occupied by the first user module may include a first radio frequency receiving circuit in the radio frequency front end, that is, the first radio frequency receiving circuit is configured to receive signals in the first frequency band.

[0113] The radio frequency resources occupied by the second user module may include a second radio frequency receiving circuit and a broadband radio frequency receiving circuit, that is, the second radio frequency receiving circuit is configured to receive signals in the second frequency band, and the broadband radio frequency receiving circuit is configured to receive signals in the second frequency band.

[0114] It should be noted that Figure 9 This is merely an example. The configuration can also be reversed, that is, the first RF receiving circuit is configured to the second user module, and the second RF receiving circuit and the broadband RF receiving circuit are configured to the first user module. In this case, the first RF receiving circuit is configured to receive signals in the second frequency band, the second RF receiving circuit is configured to receive signals in the first frequency band, and the broadband RF receiving circuit is configured to receive signals in the first frequency band. Other configurations are also possible, and this application will not further illustrate each one.

[0115] In scenario two, the broadband RF receiving circuit is configured by default for one of the user modules, for example, the second user module. Although the second user module occupies fewer RF resources than the first user module, the second user module has access to the broadband RF receiving circuit and uses dual-antenna RF hardware resources, which enhances the communication performance of the second user module.

[0116] Optionally, if the signal of the first user module becomes weaker, or the priority of the service executed by the first user module becomes higher, the broadband radio frequency receiving circuit may be configured for the first user module.

[0117] In scenario three, one user module occupies all resources in the RF front end, and the other user module occupies the broadband RF receiving circuit.

[0118] For example, the first user module occupies all resource paths in the RF front end, and the second user module occupies the broadband RF receiving circuit.

[0119] Assume that the communication frequency band of the first user module includes the first frequency band, the communication frequency band of the second user module includes the second frequency band, and the first frequency band and the second frequency band conflict, for example, in the same frequency band interval. Figure 10 The figure shows a schematic diagram of a resource allocation method provided in an embodiment of the present application. The radio frequency resources occupied by the first user module may include a first radio frequency receiving circuit and a second radio frequency receiving circuit, and the second user module may occupy a broadband radio frequency receiving circuit. In this case, the first radio frequency receiving circuit is configured to receive signals in the first frequency band, the second radio frequency receiving circuit is configured to receive signals in the first frequency band, and the broadband radio frequency receiving circuit is configured to receive signals in the second frequency band. Allocating radio frequency resources in this way can ensure optimal communication performance of the first user module while also ensuring that the second user module can receive signals.

[0120] It should be noted that Figure 10 This is just an example, and the configuration can also be reversed, that is, the first RF receiving circuit and the second RF receiving circuit are configured to the second user module, and the broadband RF receiving circuit is configured to the first user module. Other configuration methods are also possible, and this application will not illustrate them one by one.

[0121] In scenario three, although the RF resources in the RF front end are not allocated to the second user module, the second user module occupies the broadband RF receiving circuit, and signals can be sent and received through the broadband RF receiving circuit, avoiding the problem of being unable to communicate.

[0122] In the embodiment of the present application, after configuring radio frequency resources for the first user module and the second user module in accordance with the methods described in scenarios one to three, when the first user module and the second user module operate in different states, a broadband radio frequency receiving circuit can be dynamically configured for the first user module or the second user module according to actual conditions.

[0123] by Figure 8 Taking the resource allocation method shown in the figure as an example, the first user module occupies the first RF receiving circuit, and the second user module occupies the second RF receiving circuit. In the case of RF resource conflict, the received signal energy of each user module can be counted to predict the signal strength trend, thereby determining the user module to use the broadband RF receiving circuit.

[0124] For example, in case 1, when the first user module and the second user module are both in standby state, in a radio frequency resource conflict scenario:

[0125] 1) If the signals of the first user module and the second user module are both relatively strong and are greater than or equal to the first threshold, the right to use the broadband RF receiving circuit is not allocated, that is, neither user module uses the broadband RF receiving circuit, and the broadband RF receiving circuit is not configured to receive signals in any frequency band.

[0126] 2) If the signals of the first user module and the second user module are both weak and less than the first threshold, the broadband RF receiving circuit is preferentially configured to the user module with a higher priority. For example, if the priority of the first user module is higher, the broadband RF receiving circuit is configured to the first user module. At this time, the broadband RF receiving circuit is configured to receive signals in the first frequency band.

[0127] 3) If the signal of one user module is strong and the signal of the other user module is weak, the broadband RF receiving circuit is configured for the user module with the weaker signal; for example, if the signal of the first user module is greater than or equal to the first threshold and the signal of the second user module is less than the first threshold, the broadband RF receiving circuit is configured for the second user module. In this case, the broadband RF receiving circuit is configured to receive signals in the second frequency band.

[0128] In case 2, if one user module is executing a data service and the other user module is in standby mode, to ensure that the user module in standby mode does not miss a phone paging call, a broadband RF receiving circuit is configured for the user module in standby mode.

[0129] Case 3: If one user module is performing voice service and the other user module is in standby mode, the voice call quality is prioritized. The following possibilities exist:

[0130] 1) If the signal of the user module executing the voice service is stronger, for example, greater than or equal to the second threshold, and the signal of the user command in the standby state is also stronger, for example, greater than or equal to the second threshold, then the right to use the broadband RF receiving circuit is not allocated, that is, neither user module uses the broadband RF receiving circuit, and the broadband RF receiving circuit is not configured to receive signals in any frequency band.

[0131] 2) If the signal of the user module performing the voice service is weak, for example, less than the second threshold, and the signal of the user command in the standby state is strong, for example, greater than or equal to the second threshold, the broadband RF receiving circuit is configured for the user module performing the voice service. At this time, the broadband RF receiving circuit is used to receive the voice signal, and the broadband RF receiving circuit is configured to receive the signal in the frequency band corresponding to the voice signal.

[0132] 3) If the signal of the user module performing voice service is stronger, for example, greater than or equal to the second threshold, and the signal of the user command in the standby state is weaker, for example, less than the second threshold, the broadband RF receiving circuit is configured for the user module performing standby service.

[0133] 4) If the signal of the user module performing the voice service is weak, for example, less than the second threshold, and the signal of the user command in the standby state is weak, for example, less than the second threshold, the broadband RF receiving circuit is configured for the user module performing the voice service. At this time, the broadband RF receiving circuit is used to receive the voice signal, and the broadband RF receiving circuit is configured to receive the signal in the frequency band corresponding to the voice signal.

[0134] It should be noted that in the above cases 1 to 3, the received signal energy of each user module can be counted to predict the signal strength trend of each user module. When it is predicted that the signal of a user module is about to weaken, the signal of the user module is determined to be weak, and vice versa. The specific values ​​of the first threshold and the second threshold can be determined according to actual conditions and are not limited in this embodiment of the present application.

[0135] In combination with the above description, it can be as shown in Table 3, in which the first user module having a high priority is used as an example for description.

[0136] Table 3

[0137]

[0138] The above are just examples. As shown in Table 4, in order to combine the above scenarios 1 to 3, this application provides a method for allocating broadband radio frequency receiving circuits.

[0139] Table 4

[0140]

[0141]

[0142] It should be noted that Table 4 is only an example, and the embodiments of the present application do not limit the use of other methods to determine how to enable the broadband radio frequency receiving circuit.

[0143] The above is just one example of how to allocate broadband RF receive circuits in different scenarios when two user modules' RF resources conflict. Each user module's signal strength in 2G / 3G / 4G / 5G networks has its own signal strength thresholds, and broadband RF receive circuits are allocated when these thresholds are met.

[0144] Optionally, when a user module occupies a broadband radio frequency receiving circuit, first, the broadband radio frequency receiving circuit must be configured with corresponding operating parameters so that the broadband radio frequency receiving circuit can operate in the frequency band currently operating in the user module. Figure 11 The method shown uses a wideband RF receiving circuit.

[0145] Step 1101: Start external environment detection.

[0146] Specifically, the determination of the interference signal in the detection environment and the specific detection method are not limited in the embodiments of the present application.

[0147] Step 1102: If the detected out-of-band interference intensity is greater than the preset threshold, it is determined that the broadband RF receiving circuit will be subject to strong interference and cannot be used to receive signals, and then enter periodic detection, that is, go to step 1101; otherwise, go to step 1103.

[0148] Step 1103: Receive a signal via a broadband radio frequency receiving circuit.

[0149] By adopting a broadband radio frequency receiving circuit to receive signals, the communication receiving performance of the current user module can be improved.

[0150] The above scenario can also be applied to a scenario where a communication device provides communication services for a user module, and the embodiments of the present application are not limited to this.

[0151] It should be noted that, in practical applications of the embodiments of the present application, the communication device may include two or more broadband radio frequency receiving circuits to obtain better receiving performance.

[0152] A single broadband RF receiving circuit needs to support all frequency bands and is divided into two or more broadband RF receiving circuits. Each broadband RF receiving circuit supports a finer frequency range and has better filtering performance, which has a stronger ability to suppress out-of-band interference. As a result, the probability of enabling the broadband RF receiving circuit to detect and be used is greatly increased, which is used to improve the signal reception performance in RF resource conflict scenarios.

[0153] Currently, communication specifications are becoming increasingly advanced. Communication devices may not only support 5G, but also support multiple input multiple output (MIMO), such as 2*2 MIMO, 4*4 MIMO, 8*8 MIMO, etc. In this way, the system uses more and more complex receiving paths and antennas.

[0154] For example, if Figure 12 The figure shows a schematic diagram of the structure of a communication device provided by an embodiment of the present application. The RF front end includes six antennas. A broadband RF receiving circuit can be used to assist one of the six antennas in signal reception. Alternatively, two or more broadband RF receiving circuits can be designed to assist one or more antennas in signal reception.

[0155] For example, the current operating frequency range of the terminal is mostly in the range of 700MHz to 4.5GHz. In an embodiment of the present application, a broadband RF receiving circuit can be used in the communication device, which can receive signals from 700MHz to 4.5GHz; three broadband RF receiving circuits can also be used in the communication device, which can respectively receive signals in the three frequency ranges of 700MHz to 900MHz, 1400MHz to 2700MHz, and 3100MHz to 4500MHz, thereby obtaining better signal reception performance.

[0156] As described above, Figure 13 The figure shows an application scenario of an embodiment of the present application. When the communication device is close to the human body, such as the head or hand, the received signal will be weakened. The communication device generally has hardware sensors, such as cameras, infrared sensors, resistor capacitance (RC) sensors, etc., which can quickly determine the user's current scene through sensors. The communication device pre-stores broadband RF receiving circuit allocation schemes and RF resource allocation schemes for all scenarios. These scenarios can be extracted through experiments, and the model is more accurate. In this way, when a specific scenario is detected and identified by the communication device, the broadband RF receiving circuit allocation scheme in that scenario is directly used.

[0157] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these 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 these modifications and variations.

Claims

1. A communication device, characterized in that: include: a first radio frequency receiving circuit, wherein the operating frequency band of the first radio frequency receiving circuit includes a first frequency band, wherein the first radio frequency receiving circuit includes a first amplifier and a first filter; a second radio frequency receiving circuit, wherein the operating frequency band of the second radio frequency receiving circuit includes a second frequency band, wherein the second radio frequency receiving circuit includes a second amplifier and a second filter; and A broadband radio frequency receiving circuit, wherein the operating frequency band of the broadband radio frequency receiving circuit includes the first frequency band and the second frequency band, wherein the broadband radio frequency receiving circuit includes at least one amplifier and at least one filter; The communication device includes a first user module and a second user module, and is configured to provide communication services to the first user module and the second user module. The first user module occupies the first radio frequency receiving circuit, and the second user module occupies the second radio frequency receiving circuit. The broadband radio frequency receiving circuit assists the first radio frequency receiving circuit and / or the second radio frequency receiving circuit in receiving signals. If the signal of the first user module and the signal of the second user module are both less than a first threshold and the priority of the first user module is high, the broadband RF receiving circuit is configured to receive the signal of the first frequency band; If the signal of the first user module is greater than or equal to the first threshold and the signal of the second user module is less than the first threshold, the broadband RF receiving circuit is configured to receive the signal of the second frequency band.

2. The communication device according to claim 1, wherein: At least one filter of the broadband radio frequency receiving circuit includes a tunable filter, wherein an operating frequency band of the tunable filter is configured to include any one of the first frequency band and the second frequency band.

3. The communication device according to claim 1, wherein: The at least one filter of the broadband RF receiving circuit includes at least two filters, wherein the operating frequency band of one of the at least two filters is configured to include the first frequency band, and the operating frequency band of another of the at least two filters is configured to include the second frequency band.

4. The communication device according to any one of claims 1 to 3, characterized in that: The first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the second frequency band, and the broadband RF receiving circuit is not configured to receive signals in the first frequency band or the second frequency band.

5. The communication device according to any one of claims 1 to 3, characterized in that: The first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is not configured to receive signals in the second frequency band, and the broadband RF receiving circuit is configured to receive signals in the second frequency band.

6. The communication device according to any one of claims 1 to 3, characterized in that: The first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the second frequency band, and the broadband RF receiving circuit is configured to receive signals in the first frequency band.

7. The communication device according to any one of claims 1 to 3, characterized in that: The first RF receiving circuit is configured to receive signals in the first frequency band, the second RF receiving circuit is configured to receive signals in the first frequency band, and the broadband RF receiving circuit is configured to receive signals in the second frequency band.

8. The communication device according to any one of claims 1 to 3, characterized in that: The broadband radio frequency receiving circuit is further coupled to at least one antenna, and the frequency bands supported by the antenna include the first frequency band and the second frequency band.

9. The communication device according to any one of claims 1 to 3, characterized in that: The communication device is configured to provide communication services to a user module, wherein the communication frequency band of the user module includes the first frequency band and the second frequency band.

10. The communication device according to any one of claims 1 to 3, characterized in that: The communication device is configured to provide communication services to at least two user modules, wherein the at least two user modules include a first user module and a second user module, wherein the communication frequency band of the first user module includes the first frequency band, and the communication frequency band of the second user module includes the second frequency band.

11. The communication device according to any one of claims 1 to 3, characterized in that: The first frequency band and the second frequency band are frequency bands within the same frequency band interval; or the frequency of the first frequency band overlaps with the frequency of the second frequency band.

12. The communication device according to any one of claims 1 to 3, characterized in that: The first frequency band is frequency band B1 or B3 or B39 or B41, and the second frequency band is frequency band B1 or B3 or B39 or B41; Alternatively, the first frequency band is frequency band B8 or n77 or n78, and the second frequency band is frequency band B8 or n77 or n78.

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