WO2022160313A1

WO2022160313A1 - Communication apparatus

Info

Publication number: WO2022160313A1
Application number: PCT/CN2021/074552
Authority: WO
Inventors: 夏正山
Original assignee: 华为技术有限公司
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2022-08-04
Also published as: CN116097571A

Abstract

A communication apparatus comprising: a first radio frequency reception circuit, a working frequency band of the first radio frequency reception circuit comprising a first frequency band, wherein the first radio frequency reception circuit comprises a first amplifier and a first filter; a second radio frequency reception circuit, a working frequency band of the second radio frequency reception circuit comprising a second frequency band, wherein the second radio frequency reception circuit comprises a second amplifier and a second filter; and a wide band radio frequency reception circuit, working frequency bands of the wide band radio frequency reception circuit comprising the first frequency band and the second frequency band, wherein the wide band radio frequency reception circuit comprises at least one amplifier and at least one filter.

Description

a communication device

technical field

The present application relates to the field of wireless communication technologies, and in particular, to a communication device.

Background technique

With the development of communication technology, terminal devices support more and more types of networks. Some terminal devices can support multiple mobile communication networks at the same time, such as supporting at least two of 2G, 3G, 4G and 5G networks. Therefore, the terminal The device needs to support working in multiple frequency bands. Moreover, the terminal equipment not only needs to support the frequency band included in the domestic mobile communication network, but also needs to support the frequency band included in the mobile communication network roaming to foreign countries. added complexity. Therefore, how to improve the communication performance of the terminal device is an urgent problem to be solved.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a communication device, so as to improve the communication performance of the communication device.

It should be understood that, in the solution provided in this application, the communication device may be a wireless communication device, or may be a part of a device in the 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 functionality.

Specifically, the wireless communication device may be a terminal such as a smart phone, or may be a wireless access network device such as a base station. A system-on-chip may also be referred to as a system on chip (system on chip, SoC), or simply referred to as a SoC chip. Communication chips may include baseband processing chips and radio frequency integrated circuits. Baseband processing chips are also sometimes referred to as modems or baseband chips. Radio frequency integrated circuits are also sometimes referred to as radio frequency transceivers (transceivers) or radio frequency chips. In physical implementation, some or all of the communication chips may be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency integrated circuit is not integrated with the SoC chip.

In a first aspect, a communication device is provided, including: a first radio frequency receiving circuit, 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 a filter; a second radio frequency receiving circuit, 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, The working 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.

In the above communication device, the broadband radio frequency receiving circuit has a simple structure and can assist the first radio frequency receiving circuit and/or the second radio frequency receiving circuit to receive signals without increasing the cost, thereby improving the communication performance of the communication device.

In an optional implementation manner, at least one filter of the broadband radio frequency receiving circuit includes a tunable filter, wherein the working frequency band of the tunable filter is configured to include the first frequency band and the first frequency band. any of the two frequency bands.

In the above communication device, the adjustable filter in the wideband radio frequency receiving circuit has a relatively wide receiving frequency range, and the filtering performance can be adjusted according to the working frequency band, so that the wideband radio frequency receiving circuit can be flexibly configured to receive signals in any frequency band.

In an optional implementation, the amplifier in the broadband radio frequency 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 100MHz to 5GHz, and can have a relatively high frequency. good noise figure and gain performance.

In an optional implementation manner, at least one filter of the broadband radio frequency receiving circuit includes at least two filters, wherein a working frequency band of one filter in the at least two filters is configured to include the first filter. A frequency band, and the operating frequency band of the other filter of the at least two filters is configured to include the second frequency band.

In an optional implementation manner, the first radio frequency receiving circuit is configured to receive a signal of the first frequency band, the second radio frequency receiving circuit is configured to receive a signal of the second frequency band, and the broadband The radio frequency receiving circuit is not configured to receive the signal of the first frequency band or the second frequency band.

In an optional implementation manner, the first radio frequency receiving circuit is configured to receive a signal of the first frequency band, the second radio frequency receiving circuit is not configured to receive a signal of the second frequency band, and the The broadband radio frequency receiving circuit is configured to receive the signal of the second frequency band.

In an optional implementation manner, the first radio frequency receiving circuit is configured to receive a signal of the first frequency band, the second radio frequency receiving circuit is configured to receive a signal of the second frequency band, and the broadband The radio frequency receiving circuit is configured to receive the signal of the first frequency band.

In an optional implementation manner, the first radio frequency receiving circuit is configured to receive a signal of the first frequency band, the second radio frequency receiving circuit is configured to receive a signal of the first frequency band, and the broadband The radio frequency receiving circuit is configured to receive the signal of the second frequency band.

In an optional implementation manner, 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.

In an optional implementation manner, the communication apparatus is configured to provide a communication service to a user module, wherein a communication frequency band of the user module includes the first frequency band and the second frequency band.

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

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 and the frequency of the second frequency band overlap.

In an optional implementation manner, 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 B41. n77 or n78, the second frequency band is frequency band B8 or n77 or n78.

Description of drawings

FIG. 1 is a schematic diagram of an architecture of a wireless communication system applicable to an embodiment of the present application;

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

3 is a schematic structural diagram of a radio frequency front-end provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a wideband radio frequency receiving circuit according to an embodiment of the present application;

FIG. 6(a) is a schematic structural diagram of another wideband radio frequency receiving circuit provided by an embodiment of the present application;

FIG. 6(b) is a schematic structural diagram of another broadband radio frequency receiving circuit provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of time division multiplexing provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of radio frequency resource allocation according to an embodiment of the present application;

FIG. 9 is a schematic diagram of radio frequency resource allocation according to an embodiment of the present application;

FIG. 10 is a schematic diagram of radio frequency resource allocation according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a signal receiving method provided by an embodiment of the application;

FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 13 is a schematic diagram of an application scenario provided by an embodiment of the present application.

Detailed ways

The technical solutions provided by the present application are further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and service scenarios provided in the embodiments of the present application are mainly to explain some possible implementations of the technical solutions of the present application, and should not be construed as unique limitations on the technical solutions of the present application. Those of ordinary skill in the art can know that with the evolution of the system and the emergence of newer service scenarios, the technical solutions provided in this application are still applicable to the same or similar technical problems.

It should be understood that the technical solutions provided by the embodiments of the present application, in the introduction of the following specific embodiments, some repeated parts may not be repeated, but it should be considered that these specific embodiments have been referred to each other and can be combined with each other.

This application can be applied to new radio (NR) system, global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (wideband) code division multiple access, WCDMA) system, general packet radio service (general pcket radio service, GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long term evolution, LTE-A) system, general Mobile communication system (universal mobile telecommunication system, UMTS), evolved long term evolution (evolved long term evolution, eLTE) system, future communication system and other communication systems, specifically, are not limited here.

In a wireless communication system, devices can be divided into devices that provide wireless network services and devices that use wireless network services. The devices that provide wireless network services refer to those devices that make up a wireless communication network, which can be referred to as network equipment or network elements for short. Network equipment is usually owned by operators or infrastructure providers, who are responsible for operation or maintenance. Network devices can be further classified into radio access network (RAN) devices and core network (core network, CN) devices. A typical RAN device includes a base station (BS).

It should be understood that the base station may also sometimes be referred to as a wireless access point (access point, AP), or a transmission reception point (transmission reception point, TRP). Specifically, the base station may be a general node B (generation Node B, gNB) in a 5G new radio (new radio, NR) system, or an evolutional Node B (evolutional Node B, eNB) in a 4G long term evolution (long term evolution, LTE) system. ). Base stations can be classified into macro base stations or micro base stations according to their physical form or transmit power. Micro base stations are also sometimes referred to as small base stations or small cells.

A device using a wireless network service may be referred to as a terminal for short. The terminal can establish a connection with the network device, and provide the user with specific wireless communication services based on the service of the network device. It should be understood that because the terminal has a closer relationship with the user, it is sometimes also referred to as user equipment (user equipment, UE), or subscriber unit (subscriber unit, SU). In addition, as opposed to base stations, which are usually placed in fixed locations, terminals tend to move with users and are sometimes referred to as mobile stations (mobile stations, MSs). In addition, some network devices, such as relay nodes (relay nodes, RNs) or wireless routers, can sometimes be regarded as terminals because they have UE identity or belong to users.

Specifically, the terminal may be a mobile phone, a tablet computer, a laptop computer, a wearable device (such as a smart watch, smart bracelet, smart helmet, 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 home appliances) and smart city devices (such as security or monitoring equipment, intelligent road transport facilities), etc.

For ease of expression, the present application will take the base station and the terminal as examples to describe the technical solutions of the embodiments of the present application in detail.

FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application. As shown in FIG. 1, a wireless communication system includes a terminal and a base station. According to different transmission directions, the transmission link from the terminal to the base station is denoted as an uplink (uplink, UL), and the transmission link from the base station to the terminal is denoted as a downlink (downlink, DL). Similarly, data transmission in the uplink may be abbreviated as uplink data transmission or uplink transmission, and data transmission in the downlink may be abbreviated as downlink data transmission or downlink transmission.

In the wireless communication system, the base station can provide communication coverage for a specific geographical area through an integrated or external antenna device. One or more terminals located within the communication coverage 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 radio resources, a cell is a combination of downlink radio resources and paired uplink radio resources (optional).

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 Institute of Electrical and Electronics Engineers (IEEE) ) of the 802 series (such as 802.11, 802.15, or 802.20) wireless communication standards. Although only one base station and one terminal are shown in FIG. 1 , the wireless communication system may also include other numbers of terminals and base stations. In addition, the wireless communication system may further include other network devices, such as core network devices.

The terminal and the base station should know 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. A carrier is a frequency range that conforms to system regulations. This frequency range can be determined by the center frequency of the carrier (referred to as the carrier frequency) and the bandwidth of the carrier. The pre-defined configurations of these systems can be used as part of the standard protocols of the wireless communication system, or determined by the 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 as hardware circuits or software codes of the terminal and the base station.

In this wireless communication system, the terminal and the 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 the base station use the same air interface parameters, coding scheme, modulation scheme, etc., and communicate with each other based on radio resources specified by the system.

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

The communication device may be a device such as a terminal. As shown in FIG. 2 , the communication device may include an application subsystem, a memory, a mass storage (massive storage), a baseband subsystem, a radio frequency integrated circuit (RFIC), a radio frequency front end (radio frequency front) end, RFFE), a broadband radio frequency receiving circuit, and an antenna (antenna, ANT), these devices can be coupled through various interconnecting buses or other electrical connections. Among them, the RFIC may also be referred to as a radio frequency transceiver module.

In FIG. 2, the broadband radio frequency receiving circuit may be coupled with the RFIC and at least one antenna. The specific implementation is not limited. The broadband radio frequency receiving circuit may include at least one amplifier and at least one filter, wherein the amplifier here may refer to low noise amplifier.

In Fig. 2, ANT_1 represents the first antenna, and so on, ANT_N represents the Nth antenna, and 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 receiving path, PRx represents the primary receiving path, and DRx represents the diversity receiving path. HB means high frequency, LB means low frequency, both refer to the relative high and low frequency. BB stands for baseband. It should be understood that the labels and components in FIG. 2 are for illustrative purposes only, and only serve as a possible implementation manner, and the embodiments of the present application also include other implementation manners.

The application subsystem can be used as the main control system or main computing system of the communication device to run the main operating system and application programs, manage the hardware and software resources of the entire communication device, and provide users with a user interface. The application subsystem may include one or more processing cores. In addition, the application subsystem may also include driver software related to other subsystems (eg, baseband subsystem). The baseband subsystem may also include one or more processing cores, as well as hardware accelerators (HACs) and caches.

In Fig. 2, the radio frequency front end, coupled with the RFIC, is used to send and receive signals in the frequency band supported by the communication device; the radio frequency front end and the RFIC can jointly form a radio frequency subsystem. The RF subsystem can be further divided into the RF receive path (RF receive path) and the RF transmit path (RF transmit path). The RF receive channel can receive the RF signal through the antenna, process the RF signal (eg, amplify, filter and down-convert) to obtain the baseband signal, and transmit it to the baseband subsystem. The RF transmit channel can receive the baseband signal from the baseband subsystem, perform RF processing (such as up-conversion, amplification and filtering) on the baseband signal to obtain the RF signal, and finally radiate the RF signal into space through the antenna.

In Figure 2, the baseband subsystem can extract useful information or data bits from the baseband signal, or convert the information or data bits into the baseband signal to be transmitted. These information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem can implement signal processing operations such as modulation and demodulation, encoding and decoding. Different radio access technologies, such as 5G NR and 4G LTE, tend to have different baseband signal processing operations. Therefore, in order to support the convergence of multiple mobile communication modes, the baseband subsystem may simultaneously include multiple processing cores, or multiple HACs.

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

It should be understood that, in this embodiment of the present application, the processing core may represent a processor, and the processor may be a general-purpose processor or a processor designed for a specific field. For example, the processor may be a central processing unit (center processing unit, CPU), or may be a digital signal processor (digital signal processor, DSP). The processor may also be a microcontroller (micro control unit, MCU), a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processing, ISP), an audio signal processor (audio signal processor, ASP) ), and processors 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 called AI engines.

Hardware accelerators can be used to implement some sub-functions with high processing overhead, such as data packet assembly and parsing, data packet encryption and decryption, etc. 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 specifically selected based on requirements. In a specific implementation manner, one or a combination of a field programmable gate array (FPGA) and an application specific integrated circuit (ASIC) can be used for implementation. Of course, one or more processing cores may also be used in a hardware accelerator.

Memory can be divided into volatile memory (volatile memory) and non-volatile memory (non-volatile memory, NVM). Volatile memory refers to memory in which data stored inside is lost when the power supply is interrupted. At present, volatile memory is mainly random access memory (random access memory, RAM), including static random access memory (static RAM, SRAM) and dynamic random access memory (dynamic RAM, DRAM). Non-volatile memory refers to memory whose internal data will not be lost 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, memory can choose volatile memory, and mass storage can choose non-volatile memory, such as magnetic disk or flash memory.

In this embodiment of the present application, the baseband subsystem and the radio frequency subsystem together form a communication subsystem, which provides a wireless communication function for a communication device. Generally, the baseband subsystem is responsible for managing the hardware and software resources of the communication subsystem, and can configure the working parameters of the radio frequency subsystem. One or more processing cores of the baseband subsystem may be integrated into one or more chips, which may be referred to as baseband processing chips or baseband chips. Similarly, RFICs can be referred to as radio frequency processing chips or radio frequency modules. In addition, with the evolution of technology, the functional division of the radio frequency subsystem and the baseband subsystem in the communication subsystem can also be adjusted. For example, the functions of part of the radio frequency subsystem are integrated into the baseband subsystem, or the functions of part of the baseband subsystem are integrated into the radio frequency subsystem. In practical applications, based on the requirements of the application scenarios, the communication device may employ a combination of different numbers and types of processing cores.

In this embodiment of the present application, a communication device (for example, the communication device shown in FIG. 2 ) can provide a communication service for at least one user at the same time. When the communication device provides communication services for two users, the two users can be attached to the cell in the first network and the cell in the second network respectively, and one user is enabled to maintain a wireless connection with the cell in the first network , and enabling another user to camp on the cell in the second network.

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

The first network and the second network may be the same type of network, or different types of networks, for example, the first network may be an LTE network, or an NR network, etc.; the second network may be an LTE network, or an NR network etc., this is not limited in the embodiments of the present application.

It should be noted that, in the embodiments of the present application, "user" is a logical concept, and "user" may correspond to a (subscriber identity module, SIM) card or subscription user information or a virtual SIM card or a user identity (such as an international mobile subscriber identity (international mobile subscriber identity). subscriber identity, IMSI)/temporary mobile subscriber identity (TMSI)), not limited to natural person users or physical terminals (mobile phones), etc. From the perspective of the network side, different "users" logically correspond to The different communication entities that the network side serves. For example, a terminal with dual registration functions is two communication entities for the network side. For example, when "user" corresponds to the SIM card or the subscriber information, the network side will Two terminals with different SIM cards or different subscriber information are identified as two different communication entities, and the same terminal device with multiple different SIM cards or multiple subscriber information will also be identified as multiple different communication entities, Even in practice, a terminal with multiple different SIM cards or multiple subscriber information is only one physical entity.

As shown in FIG. 3 , it is a schematic structural diagram of a radio frequency front-end provided by an embodiment of the present application.

In this embodiment of the present application, the radio frequency front end may include at least one radio frequency receiving circuit and at least one radio frequency transmitting circuit. If the communication device supports a frequency division duplex (FDD) system, an RF receiving circuit and an RF transmitting circuit in the RF front-end may be as shown on the right in Figure 3, including RF switches, amplifiers (such as low noise Amplifier (low noise amplifier, LNA)), power amplifier (power amplifier, PA), filter (filter) and duplexer and other electronic devices; if the communication device supports Time Division Duplexing (TDD) system, RF front-end A radio frequency receiving circuit and a radio frequency transmitting circuit can be shown on the left in Figure 3, including radio frequency switches, amplifiers (such as low noise amplifiers), power amplifiers, filters and other electronic devices; these electronic devices can be integrated as required into one or more chips.

Among them, the power amplifier is responsible for the amplification of the radio frequency signal of the radio frequency transmission circuit; the filter is responsible for the filtering of the transmitted and received signals, and is responsible for frequency selection to ensure that the signals do not interfere with each other transmission at different frequencies; the duplexer is responsible for the duplex switching and reception/reception of the FDD system. The radio frequency signal filtering of the transmission path; the radio frequency switch is responsible for the switching between the radio frequency receiving circuit and the radio frequency transmitting circuit; the low noise amplifier is mainly used for small signal amplification in the radio frequency receiving circuit.

In the embodiment of the present application, the PA in the radio frequency transmitting circuit may be an independent module, and the filter in the radio frequency receiving circuit may also be an independent module, which is not integrated into the radio frequency front end. For example, as shown in FIG. 4 , a schematic structural diagram of another communication device provided by an embodiment of the present application. In Figure 4, the PA in the radio frequency transmitting circuit is an independent module, and the filter in the radio frequency receiving circuit is an independent module, which are located outside the radio frequency front end.

It should be noted that the above are just examples, and the detailed structure of the radio frequency front end may exist in various forms, which are not limited in the embodiments of the present application, and will not be described one by one here.

In the embodiment of the present application, the radio frequency front end may work in multiple frequency bands, for example, the radio frequency front end may work in at least three frequency bands: low frequency band (low band, LB), ranging from 700MHz to 900MHz; middle high frequency band (middle high band, LB) 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 shown in Table 1.

Table 1

It should be noted that, for the frequency range corresponding to each frequency band in Table 1, reference may be made to the description in the prior art, which will not be repeated here.

In the embodiment of the present application, when the radio frequency front end includes at least one radio frequency receiving circuit and at least one radio frequency transmitting circuit, each radio frequency receiving circuit can work in one or more frequency bands, that is, each radio frequency receiving circuit can receive signals in one or more frequency bands. Signal; each radio frequency transmitting circuit can work in one or more frequency bands, that is, each radio frequency transmitting circuit can transmit signals in one or more frequency bands.

For example, taking the radio frequency front end including a first radio frequency receiving circuit and a second radio frequency receiving circuit as an example, the working frequency band of the first radio frequency receiving circuit may include a first frequency band, wherein the first radio frequency receiving circuit includes a first amplifier and a a first filter; the first amplifier may be a low noise amplifier. The operating frequency band of the second radio frequency receiving circuit may include a second frequency band, wherein the second radio frequency receiving circuit includes a second amplifier and a second filter, and the second amplifier may be a low noise amplifier.

In this 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.

For example, in an implementation manner, the first frequency band and the second frequency band are frequency bands in the same frequency band interval; or the frequency of the first frequency band and the frequency of the second frequency band overlap. Overlapping means fully overlapping or partially overlapping.

In another implementation manner, 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, 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.

With reference to the foregoing description, in this embodiment of the present application, the communication device may work in at least one frequency band. For example, the communication device is configured to provide a communication service to one user module, wherein the communication frequency band of the user module includes the first frequency band and the second frequency band. In this case, the first radio frequency receiving circuit in the communication device receives the signal of the first frequency band for the user module, and the second radio frequency receiving circuit receives the signal of the second frequency band for the user module.

For another example, the communication device is configured to provide communication services to at least two user modules, the at least two user modules include a first user module and a second user module, wherein the communication of the first user module The frequency band 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 radio frequency receiving circuit in the communication device receives the signal of the first frequency band for the first user module, and the second radio frequency receiving circuit receives the signal of the second frequency band for the second user module.

In the embodiment of the present application, the communication device further includes a broadband radio frequency receiving circuit. Broadband radio frequency receiving circuit can be used for auxiliary receiving. In a possible situation, the communication device may provide communication services for one or two user modules, and when the radio frequency resources occupied by the communication devices in the two user modules conflict, the broadband radio frequency receiving circuit is allocated to one of the user modules, Used to improve communication reception performance. In the embodiment of the present application, the wideband radio frequency receiving circuit may have lower hardware cost, a relatively wide-band receiving frequency range, and the filtering performance can be adjusted according to the working frequency band, so that it can flexibly work on various frequency bands according to actual needs.

As mentioned above, in this embodiment of the present application, the broadband radio frequency receiving circuit may include at least one amplifier and at least one filter. Wherein, the amplifier may be a low-noise amplifier for linearly amplifying small signals; the filter may be a tunable filter.

For example, as shown in FIG. 5 , a schematic structural diagram of a broadband radio frequency receiving circuit provided by an embodiment of the present application.

The broadband radio frequency receiving circuit is coupled with an antenna. In FIG. 5 , the broadband radio frequency receiving circuit includes a filter and an amplifier as an example. The input end of the filter is coupled to the antenna, and the output end of the filter is is coupled with the amplifier; the output end of the amplifier is coupled with the radio frequency front end. The filter included in the broadband radio frequency receiving circuit is an adjustable filter, and the working frequency band of the adjustable filter can be configured with any frequency band. For example, when the radio frequency front end includes a first radio frequency receiving circuit and a second radio frequency receiving circuit, the adjustable filter The working frequency band of the filter may be configured to include any frequency band of the first frequency band and the second frequency band.

It should be noted that the first filter in the first radio frequency receiving circuit may be specially designed for the working frequency band including the first frequency band, so the working frequency band of the first filter in the first radio frequency receiving circuit includes the The filtering performance in the first frequency band may be better than the filtering performance when the working frequency band of the tunable filter includes the first frequency band. Correspondingly, the filtering performance when the working frequency band of the second filter in the second radio frequency receiving circuit includes the second frequency band may be better than the filtering performance when the working frequency band of the tunable filter includes the second frequency band. .

It should be noted that at least one antenna coupled to the broadband radio frequency receiving circuit is coupled, and the supported frequency band includes the working frequency band of the broadband radio frequency receiving circuit, for example, the supported frequency includes the first frequency band and the second frequency band.

As shown in FIG. 6( a ), another schematic structural diagram of a broadband radio frequency receiving circuit provided by 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 end of the first filter is coupled with the output end of the amplifier, and the input end of the amplifier is connected to the output end of the amplifier. The output end of the second filter is coupled, and the input end of the second filter is coupled with the antenna. Wherein, the first filter and the second filter are both adjustable filters.

As shown in FIG. 6( b ), another schematic structural diagram of a broadband radio frequency receiving circuit provided by 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 with the antenna through a switch, and the first filter and the second filter are The output of the filter and the second filter are coupled to the amplifier. In practical application, the working frequency band of the first filter may be configured to include the first frequency band (or other frequency bands), and the working frequency band of the second filter may be configured to include the second frequency band (or For other frequency bands), you can select one of the filters for filtering by switching the switch according to the actual situation.

It should be noted that the first filter and the second filter in Fig. 6(b) may be tunable filters or not.

In this embodiment of the present application, the parameters of the amplifier and the filter in the broadband radio frequency receiving circuit can be adjusted. For example, by adjusting parameters such as the capacitance or inductance of the filter, the working frequency band of the filter in the broadband radio frequency receiving circuit can be configured as The first frequency band or the second frequency band and other frequency bands; the operation of the amplifier in the broadband radio frequency receiving circuit can be configured as the first frequency band or the second frequency band and other frequency bands, so that the interference outside the working frequency band of the amplifier can be suppressed, so The wideband radio frequency receiving circuit can be used to receive signals of corresponding frequency bands.

In the embodiment of the present application, the operating frequency of at least one amplifier in the broadband radio frequency receiving circuit can be designed to be very wide, generally in the frequency range of 100MHz to 5GHz, which can have better noise figure and gain performance. The frequency range of the filter in the broadband radio frequency receiving circuit can be in the range of 700MHz to 4.5GHz, covering the three frequency ranges of 700MHz to 900MHz, 1400MHz to 2700MHz, and 3100MHz to 4500MHz respectively.

In the actual application process, the broadband radio frequency receiving circuit can work in a specific working frequency band, and each frequency band will have corresponding working parameter configuration, such as the working parameters of the filter and the working parameters of the LNA. This application can conduct parameters through experiments. Extraction or production line calibration, etc., obtain the working parameters of the filter corresponding to each frequency band and the working parameters of the amplifier in advance. For example, as shown in Table 2, the application can pre-store the working parameters of the filter corresponding to different frequency bands and the working parameters of the amplifier. When the broadband radio frequency receiving circuit needs to work in the specified frequency band, the parameter configuration corresponding to the specified frequency band can be loaded. .

Table 2

In the embodiment of the present application, when the communication device operates in at least one frequency band, there may be at least 3 working modes. The following description is given by taking the communication device configured to provide communication services to the first user module and the second user module as an example. Other situations can be deduced by analogy, which will not be repeated here.

Working method one:

The first user module and the second user module need to communicate in different time periods, and use time division multiplexing to occupy radio frequency resources. At this time, the first radio frequency receiving circuit and the second radio frequency receiving circuit in the communication device can work in different time periods. Wherein, the radio frequency resources include but are not limited to: antennas, radio frequency switches, duplexers, filters of receiving channels, PAs, radio frequency front-ends, and radio frequency transceiver modules.

For example, as shown in FIG. 7 , a schematic diagram of time division multiplexing provided by an embodiment of the present application is shown. The communication device is configured to provide a communication service 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 first frequency band. two frequency bands. The first user module works in time window 1, the second user module works in its time window 2, and the first user module and the second user module use time-division multiplexing to alternately use radio frequency front-end resources. For example, in time window 1, the first user module uses the RFIC, radio frequency front end and antenna of the communication device to send and receive signals; in time window 2, the second user module uses the RFIC, radio frequency front end and antenna of the communication device to send and receive signals. At this time, the first radio frequency receiving circuit may be configured to receive the signal of the first frequency band, and the second radio frequency receiving circuit may be configured to receive the signal of the second frequency band.

In the first working mode, since there is no conflict of occupying radio frequency resources, the communication device may not enable the broadband radio frequency receiving circuit, and the broadband radio frequency receiving circuit is not configured to receive the first frequency band or the second frequency band at this time. signal of.

It should be noted that, in the working mode 1, if the signal of a user module becomes weak, the broadband radio frequency receiving circuit can also be enabled to assist the user module to receive signals.

Working method two:

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 may occupy radio frequency resources in a frequency division multiplexing manner.

For example, the first user module works in the first frequency band, such as the B8 frequency band of LTE, and the second user module works in the second frequency band, such as the n41 frequency band of NR, so a part of the radio frequency resources in the communication device can be allocated to the first user. module, and another part of the radio frequency resources can be allocated to the second user module. Specifically, the first radio frequency receiving circuit of the radio frequency front end in the communication device may be configured to the first user module, and the second radio frequency receiving circuit may be configured to the second user module. At this time, the first radio frequency receiving circuit is configured to receive the The signal of the first frequency band, the second radio frequency receiving circuit is not configured to receive the signal of the second frequency band.

It should be noted that, in the second working mode, whether to enable the broadband radio frequency receiving circuit may be determined according to the actual situation, which is not limited in this application.

Working method three:

The first user module and the second user module in the communication device overlap in working time and work in conflicting frequency bands. Therefore, the radio frequency resources used in the radio frequency front end also conflict. Therefore, it is necessary to flexibly configure broadband radio frequency reception according to the actual situation. The user module of the circuit usage right is described in different scenarios below.

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, and the first frequency band and the second frequency band conflict, for example, in the same frequency band interval. 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.

For example, as shown in FIG. 8 , which is a schematic diagram of a resource allocation method provided by 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 of the first frequency band.

The radio frequency resource 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 a signal of 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.

It should be noted that FIG. 8 is only an example, and the configuration can also be reversed, that is, the first radio frequency receiving circuit is configured to the second user module, and the second radio frequency receiving circuit is configured to the first user module. At this time, the first radio frequency receiving circuit is The second radio frequency receiving circuit is configured to receive the signal of the second frequency band, and the second radio frequency receiving circuit is configured to receive the signal of the first frequency band. In addition, there may also be other configuration manners, which will not be illustrated one by one in this application.

In scenario 1, the broadband radio frequency receiving circuit is not configured to any user module by default, that is, the broadband radio frequency receiving circuit is not configured to receive signals of the first frequency band or the second frequency band. When the signal of one user module in the first user module and the second user module becomes weak, or when the priority of the service executed by one of the user modules becomes higher, the broadband radio frequency receiving circuit can be configured to the user module, and the specific can be Referring to the following description, details are not repeated here.

Scenario 2: Pre-configure the radio frequency resources occupied by each user module. 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.

Assuming that 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, in the same frequency band interval. For example, as shown in FIG. 9 , a schematic diagram of a resource allocation manner provided by an embodiment of the present application is shown. In scenario 2, the radio frequency resource 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 the signal of the first frequency band.

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 a signal of the second frequency band, and the broadband radio frequency receiving circuit is configured to receive the first radio frequency receiving circuit. two-band signal.

It should be noted that FIG. 9 is only an example, and the configuration can also be reversed, that is, the first radio frequency receiving circuit is configured to the second user module, and the second radio frequency receiving circuit and the broadband radio frequency receiving circuit are configured to the first user module. A radio frequency receiving circuit is configured to receive the signal of the second frequency band, the second radio frequency receiving circuit is configured to receive the signal of the first frequency band, and the broadband radio frequency receiving circuit is configured to receive the signal of the first frequency band . In addition, there may also be other configuration manners, which will not be illustrated one by one in this application.

In the second scenario, the broadband radio frequency receiving circuit is configured by default to one of the user modules, such as the second user module. Although the radio frequency resources occupied by the second user module are less than the radio frequency resources occupied by the first user module, because the second user module has the right to use the broadband radio frequency receiving circuit, the second user module uses dual-antenna radio frequency hardware resources, and the second user module The communication performance can be enhanced.

Optionally, if the signal of the first user module becomes weak, or when the priority of the service executed by the first user module becomes higher, the broadband radio frequency receiving circuit may be configured to the first user module.

Scenario 3, one user module occupies all the resources in the RF front-end, and another user module occupies the broadband RF receiving circuit.

For example, the first user module occupies all resource paths in the radio frequency front end, and the second user module occupies the broadband radio frequency receiving circuit.

Assuming that 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, in the same frequency band interval. For example, as shown in FIG. 10 , a schematic diagram of a resource allocation manner provided by an embodiment of the present application is shown. 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. At this time, the first radio frequency receiving circuit is configured to receive a signal of the first frequency band, the second radio frequency receiving circuit is configured to receive a signal of the first frequency band, and the broadband radio frequency receiving circuit is configured to receive the signal of the second frequency band. Allocating radio frequency resources in this way can ensure that the communication performance of the first user module is optimal, and at the same time, it can also ensure that the second user module can receive signals.

It should be noted that FIG. 10 is only an example, and the configuration can be reversed, that is, the first radio frequency receiving circuit and the second radio frequency receiving circuit are configured to the second user module, and the broadband radio frequency receiving circuit is configured to the first user module. There may also be other configuration manners, which will not be illustrated one by one in this application.

In scenario 3, although the radio frequency resources in the radio frequency front end are not allocated to the second user module, the second user module occupies the broadband radio frequency receiving circuit and can send and receive signals through the broadband radio frequency receiving circuit to avoid the problem of inability to communicate.

In the embodiment of the present application, after the radio frequency resources are configured for the first user module and the second user module according to the methods in the scenarios 1 to 3, when the first user module and the second user module work in different states, you can also The situation dynamically configures the broadband radio frequency receiving circuit to the first user module or the second user module.

Taking the resource allocation manner shown in FIG. 8 as an example, the first user module occupies the first radio frequency receiving circuit, and the second user module occupies the second radio frequency receiving circuit. In the scenario of radio frequency resource conflict, the received signal energy of each user module can be counted, the signal strength trend can be predicted, and the user module using the broadband radio frequency receiving circuit can be determined.

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

1) If the signals of the first user module and the second user module are relatively strong, and both are greater than or equal to the first threshold, the right to use the broadband radio frequency receiving circuit is not allocated, that is, neither the two user modules use the broadband radio frequency receiving circuit, The wideband RF receive circuit is not configured to receive signals in either frequency band.

2) If the signals of the first user module and the second user module are compared and both are smaller than the first threshold, the broadband radio frequency receiving circuit is preferentially configured to the user module with high priority, for example, the priority of the first user module is high, then The broadband radio frequency receiving circuit is configured to the first user module, and at this time, the broadband radio frequency receiving circuit is configured to receive the signal of the first frequency band.

3) If the signal of one user module is strong and the signal of the other user module is weak, configure the broadband radio frequency receiving circuit to the weaker user module; for example, the signal of the first user module is greater than or equal to the first threshold, and the second When the signal of the user module is less than the first threshold, the broadband radio frequency receiving circuit is configured to the second user module, and at this time the broadband radio frequency receiving circuit is configured to receive the signal of the second frequency band.

In case 2, if one user module executes data service and the other user module is in standby state, in order to ensure that the user module in standby state does not lose calls and paging, the broadband radio frequency receiving circuit is configured to the user module in standby state.

In case 3, if one user module executes the voice service and the other user module is in the standby state, the voice call quality is given priority, and the following possibilities exist:

1) If the signal of the user module performing the voice service is strong, for example, greater than or equal to the second threshold, and the signal of the user command in the standby state is also strong, for example, greater than or equal to the second threshold, the use of the broadband radio frequency receiving circuit is not allocated. The right, that is, neither of the two user modules uses the wideband radio frequency receiving circuit, and the wideband radio frequency receiving circuit is not configured to receive signals in any frequency band.

2) If the signal of the user module that executes 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, such as greater than or equal to the second threshold, the broadband radio frequency receiving circuit is configured to execute the voice service. In the user module, the broadband radio frequency receiving circuit is configured to receive a voice signal, and the broadband radio frequency receiving circuit is configured to receive a signal of a frequency band corresponding to the voice signal.

3) If the signal of the user module performing the voice service is strong, for example, greater than or equal to the second threshold, and the signal of the user command in the standby state is weak, for example, less than the second threshold, then configure the broadband radio frequency receiving circuit to perform the standby service. User module.

4) If the signal of the user module that executes 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, such as less than the second threshold, then configure the broadband radio frequency receiving circuit to the user module that executes the voice service. , at this time, the broadband radio frequency receiving circuit is used to receive the voice signal, and the broadband radio frequency receiving circuit is configured to receive the signal of the frequency band corresponding to the voice signal.

It should be noted that in the above cases 1 to 3, the received signal energy of each user module can be counted, and the signal strength trend of each user module can be predicted. When it is predicted that the signal of a user module will become weak, the user module is determined. The module has a weaker signal and vice versa. The specific values of the first threshold and the second threshold may be determined according to actual conditions, which are not limited in this embodiment of the present application.

In combination with the above description, it can be shown in Table 3. In Table 3, the priority of the first user module is taken as an example for description.

table 3

The above is just an example, as shown in Table 4, in order to combine the previous scenarios 1 to 3, the present application provides a method for allocating a broadband radio frequency receiving circuit.

Table 4

It should be noted that Table 4 is only an example, and other methods are not limited in the embodiments of the present application to determine how to enable the wideband radio frequency receiving circuit.

The above is just an allocation algorithm of the broadband radio frequency receiving circuit in different scenarios when the radio frequency resources of two user modules collide. When the signal of each user module changes from strong to weak, and from weak to strong, the signal strength in the 2G/3G/4G/5G network has its own signal threshold value. If the threshold value is met, the broadband radio frequency receiving circuit is performed. allocation.

Optionally, when a user module occupies the broadband radio frequency receiving circuit, first configure corresponding operating parameters for the broadband radio frequency receiving circuit, so that the broadband radio frequency receiving circuit can work in the frequency band currently operated by the user module. How the user module can use the broadband radio frequency receiving circuit according to the method shown in FIG. 11 .

Step 1101: Start external environment detection.

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.

Step 1102: If the detected out-of-band interference intensity is greater than the preset threshold value, it is determined that the wideband radio frequency receiving circuit will be strongly interfered, and the wideband radio frequency receiving circuit cannot be used to receive signals, then enter periodic detection, that is, go to step 1101, Otherwise, go to step 1103.

Step 1103: Receive a signal through a broadband radio frequency receiving circuit.

By adopting the broadband radio frequency receiving circuit to receive the signal, the communication receiving performance of the current user module can be improved.

The above scenario can also be applied to a scenario in which a communication device provides a communication service for a user module, which is not limited in this embodiment of the present application.

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

A single wideband RF receiving circuit needs to support all frequency bands and is divided into two or more wideband RF receiving circuits. Each wideband RF receiving circuit supports a finer frequency range and better filtering performance, so that it has a stronger ability to suppress out-of-band interference. , so that the probability that the broadband radio frequency receiving circuit can be used for detection is greatly improved, which is used to improve the signal receiving performance in the performance scenario of the radio frequency resource conflict scenario.

At present, communication specifications are getting higher and higher, and 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. , so that the system uses the receiving channel, and the number of antennas is more and more complicated.

For example, as shown in FIG. 12 , a schematic structural diagram of a communication apparatus provided by an embodiment of the present application. The RF front-end includes 6 antennas, and a broadband RF receiving circuit can be used to assist one of the 6 antennas for signal reception, or two or more broadband RF receiving circuits can be designed to assist one or more antennas. signal reception.

For example, the current frequency range of terminal operation is mostly in the range of 700MHz to 4.5GHz. In the embodiment of the present application, a wideband radio frequency receiving circuit may be used in the communication device, and the wideband radio frequency receiving circuit can receive signals of 700MHz to 4.5GHz; communication Three broadband radio frequency receiving circuits can also be used in the device, which can respectively receive signals in three frequency ranges of 700MHz-900MHz, 1400MHz-2700MHz, and 3100MHz-4500MHz, so as to obtain better signal receiving performance.

As described above, as shown in FIG. 13 , which is a schematic diagram of an application scenario of an embodiment of the present application, when the communication device is close to the human body, such as the head, hand, etc., the received signal will become weak. Communication devices generally have hardware sensors, such as cameras, infrared sensors, resistance-capacitance (resistor capacitance, RC) sensors, etc., which can quickly determine the user's current scene through the sensors. The communication device pre-stores the broadband radio frequency receiving circuit allocation scheme and the radio frequency resource allocation scheme in all scenarios. These scenarios can be extracted by experiments, and the model is more accurate. In this way, a specific scene is detected and identified by the communication device, and the scene in the scene can be directly used. Broadband RF receiver circuit distribution scheme.

Obviously, those skilled in the art can 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 also intended to include these modifications and variations.

Claims

A communication device, comprising:

a first radio frequency receiving circuit, 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, 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, the working 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 according to claim 1, wherein:

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

At least one filter of the broadband radio frequency receiving circuit includes at least two filters, wherein the working frequency band of one filter in the at least two filters is configured to include the first frequency band, and the at least two filters The operating frequency band of another filter in the filter is configured to include the second frequency band.
The communication device according to any one of claims 1 to 3, characterized in that:

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

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

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

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

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

The communication device is configured to provide a communication service to one user module, wherein the communication frequency band of the user module includes the first frequency band and the second frequency band.
The communication device according to any one of claims 1 to 8, characterized in that:

The communication device is configured to provide communication services to at least two user modules, 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 user module. A frequency band, the communication frequency band of the second user module includes the second frequency band.
The communication device according to any one of claims 1 to 10, wherein the first frequency band and the second frequency band are frequency bands in the same frequency band interval; or the frequency of the first frequency band is the same as the frequency of the first frequency band. The frequencies of the two bands overlap.
The communication device according to any one of claims 1 to 10, wherein:

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.