A-IOT device in wireless communication system, method executed by a-IOT device, and wireless communication system

Abstract

The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). An electronic device comprising a first filtering network and a second filtering network, the first filtering network is configured to filter a first radio frequency (RF) signal and transmit the filtered first RF signal to a first module used for receiving signals, wherein an operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, the second filtering network is configured to filter a second RF signal and transmit the filtered second RF signal to a second module used for controlling signal reflection, wherein an operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.

Description

A-IOT DEVICE IN WIRELESS COMMUNICATION SYSTEM, METHOD EXECUTED BY A-IOT DEVICE, AND WIRELESS COMMUNICATION SYSTEM

[0001] The disclosure relates to the technical field of wireless communication. Particularly, the disclosure relates to an electronic device in a communication system, a method executed by an electronic device, and a wireless system.

[0002] Considering the development of wireless communication from generation to generation, the technologies have been developed mainly for services targeting humans, such as voice calls, multimedia services, and data services. Following the commercialization of 5th-generation (5G) communication systems, it is expected that the number of connected devices will exponentially grow. Increasingly, these will be connected to communication networks. Examples of connected things may include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machines, and factory equipment. Mobile devices are expected to evolve in various form-factors, such as augmented reality glasses, virtual reality headsets, and hologram devices. In order to provide various services by connecting hundreds of billions of devices and things in the 6th-generation (6G) era, there have been ongoing efforts to develop improved 6G communication systems. For these reasons, 6G communication systems are referred to as beyond-5G systems.

[0003] 6G communication systems, which are expected to be commercialized around 2030, will have a peak data rate of tera (1,000 giga)-level bps and a radio latency less than 100μsec, and thus will be 50 times as fast as 5G communication systems and have the 1 / 10 radio latency thereof.

[0004] In order to accomplish such a high data rate and an ultra-low latency, it has been considered to implement 6G communication systems in a terahertz band (for example, 95GHz to 3THz bands). It is expected that, due to severer path loss and atmospheric absorption in the terahertz bands than those in mmWave bands introduced in 5G, technologies capable of securing the signal transmission distance (that is, coverage) will become more crucial. It is necessary to develop, as major technologies for securing the coverage, radio frequency (RF) elements, antennas, novel waveforms having a better coverage than orthogonal frequency division multiplexing (OFDM), beamforming and massive multiple input multiple output (MIMO), full dimensional MIMO (FD-MIMO), array antennas, and multiantenna transmission technologies such as large-scale antennas. In addition, there has been ongoing discussion on new technologies for improving the coverage of terahertz-band signals, such as metamaterial-based lenses and antennas, orbital angular momentum (OAM), and reconfigurable intelligent surface (RIS).

[0005] Moreover, in order to improve the spectral efficiency and the overall network performances, the following technologies have been developed for 6G communication systems: a full-duplex technology for enabling an uplink transmission and a downlink transmission to simultaneously use the same frequency resource at the same time; a network technology for utilizing satellites, high-altitude platform stations (HAPS), and the like in an integrated manner; an improved network structure for supporting mobile base stations and the like and enabling network operation optimization and automation and the like; a dynamic spectrum sharing technology via collision avoidance based on a prediction of spectrum usage; an use of artificial intelligence (AI) in wireless communication for improvement of overall network operation by utilizing AI from a designing phase for developing 6G and internalizing end-to-end AI support functions; and a next-generation distributed computing technology for overcoming the limit of user equipment (UE) computing ability through reachable super-high-performance communication and computing resources (such as mobile edge computing (MEC), clouds, and the like) over the network. In addition, through designing new protocols to be used in 6G communication systems, developing mechanisms for implementing a hardware-based security environment and safe use of data, and developing technologies for maintaining privacy, attempts to strengthen the connectivity between devices, optimize the network, promote softwarization of network entities, and increase the openness of wireless communications are continuing.

[0006] It is expected that research and development of 6G communication systems in hyper-connectivity, including person to machine (P2M) as well as machine to machine (M2M), will allow the next hyper-connected experience. Particularly, it is expected that services such as truly immersive extended reality (XR), high-fidelity mobile hologram, and digital replica could be provided through 6G communication systems. In addition, services such as remote surgery for security and reliability enhancement, industrial automation, and emergency response will be provided through the 6G communication system such that the technologies could be applied in various fields such as industry, medical care, automobiles, and home appliances.

[0007] In a first aspect of the disclosure, provided herein is an electronic device in a wireless communication system, the electronic device comprising a first filtering network and a second filtering network, the first filtering network is configured to filter a first radio frequency (RF) signal and transmit the filtered first RF signal to a first module used for receiving signals, wherein an operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, and the second filtering network is configured to filter a second RF signal and transmit the filtered second RF signal to a second module used for controlling signal reflection, wherein an operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.

[0008] In a second aspect of the disclosure, provided herein is a a method performed by an electronic device in a wireless communication system, the method comprising: by a first filtering network, filtering a first RF signal, and transmitting the filtered first RF signal to a first module used for receiving signals, wherein an operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device; and by a second filtering network, filtering a second RF signal, and transmitting the filtered second RF signal to a third module used for controlling signal reflection, wherein an operating frequency band of the second filtering network comprising a signal transmitting frequency band of the electronic device.

[0009] To describe the technical solutions in the embodiments of the disclosure more clearly, the drawings to be used in the description of the embodiments of the disclosure will be briefly introduced below.

[0010] FIG. 1 shows a schematic structure diagram of a wireless network system according to an embodiment of the disclosure;

[0011] FIG. 2 shows a schematic structure diagram of an exemplary base station according to an embodiment of the disclosure;

[0012] FIG. 3 shows a schematic structure diagram of an exemplary user equipment according to an embodiment of the disclosure;

[0013] FIG. 4 shows a schematic architecture diagram of an electronic device according to an embodiment of the disclosure;

[0014] FIG. 5 shows an operation architecture diagram according to an embodiment of the disclosure;

[0015] FIG. 6 shows a schematic architecture diagram of an electronic device according to an embodiment of the disclosure;

[0016] FIG. 7 shows a schematic diagram of an operating frequency band of the filtering network according to an embodiment of the disclosure;

[0017] FIG. 8 shows a schematic diagram of another operating frequency band of the filtering network according to an embodiment of the disclosure;

[0018] FIG. 9 shows a schematic architecture diagram of another electronic device according to an embodiment of the disclosure;

[0019] FIG. 10 shows a schematic diagram of still another operating frequency band of the filtering network according to an embodiment of the disclosure;

[0020] FIG. 11 shows a schematic architecture diagram of still another electronic device according to an embodiment of the disclosure;

[0021] FIG. 12 shows a schematic architecture diagram of a combination of multiple antennas and multiple filtering networks according to an embodiment of the disclosure;

[0022] FIG. 13 shows a schematic architecture diagram of another combination of multiple antennas and multiple filtering networks according to an embodiment of the disclosure;

[0023] FIG. 14 shows a schematic architecture diagram of still another combination of multiple antennas and multiple filtering networks according to an embodiment of the disclosure;

[0024] FIG. 15 shows a schematic architecture diagram of yet another combination of multiple antennas and multiple filtering networks according to an embodiment of the disclosure;

[0025] FIG. 16 shows a schematic diagram of a serial arrangement of filtering networks according to an embodiment of the disclosure;

[0026] FIG. 17 shows a schematic diagram of another serial arrangement of filtering networks according to an embodiment of the disclosure;

[0027] FIG. 18 shows a schematic architecture diagram of a receiving module according to an embodiment of the disclosure;

[0028] FIG. 19 shows a schematic diagram of performing signal processing by the receiving module according to an embodiment of the disclosure;

[0029] FIG. 20 is a schematic architecture diagram of another receiving module according to an embodiment of the disclosure;

[0030] FIG. 21 shows a flowchart of a method executed by an electronic device in a communication system according to an embodiment of the disclosure; and

[0031] FIG. 22 is a schematic structure diagram of an electronic device according to an embodiment of the disclosure.

[0032] Before the following specific implementations, it can be advantageous to explain the definitions of certain words and phrases used throughout the disclosure. The term "connect" and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether these elements are in physical contact with each other. The terms "send", "receive" and "deliver" and their derivatives include both direct and indirect communication. The terms "comprise" and "include" and their derivatives mean non-limiting inclusion. The term "or" is inclusive and means and / or. The phrase "be associated with" and its derivatives mean include, be included in, be interconnected with, contain, be contained in, be connected to or with, be coupled to or with, be communicable with, cooperate with, interweave with, juxtapose with, be close to, be bound to or with, have, have a property of, has a relationship to or with..., or the like. The term "controller" means any device, system or part thereof which controls at least one operation. Such a controller can be implemented by hardware or a combination of hardware and software and / or firmware. The functions associated with any particular controller, regardless of local functions or remote functions, can be centralized or distributed. The phrase "at least one" when used to list items means that different combinations of one or more of the listed items can be used and only one item in the list may be needed. For example, "at least one of A, B and C" includes any one of the following combinations: A, B and C; A and B; A and C; B and C; only A; only B; and, only C. Similarly, the term "set" means one or more. Therefore, the set of items can be a single item or a set of two or more items.

[0033] Furthermore, various functions described below can be implemented or supported by one or more computer programs, and each function is formed by computer-readable program codes and embodied in a computer-readable medium. The terms "application" and "program" mean one or more computer programs, software components, instruction sets, processes, functions, objects, classes, instances, related data or parts thereof which are suitable for implementation in suitable computer-readable program codes. The phrase "computer-readable program code" includes any type of computer codes, including source codes, target codes and executable codes. The phrase "computer-readable medium" incudes any type of mediums that can be accessed by a computer, such as read only memories (ROMs), random access memories (RAMs), hard disk drives, compact disks (CDs), digital video disks (DVDs) or any other type of memories. "Non-temporary" computer-readable mediums exclude wired, wireless, optical or other communication links that transmit transient signals or other signals. Non-temporary computer-readable mediums include mediums in which data can be permanently stored and mediums in which data can be stored and rewritten later, such as rewritable optical disks or erasable memory devices.

[0034] The definitions of certain other words and phrases are provided throughout the disclosure. It should be understood by those skilled in the art, in many, if not most, instances, such definitions are applied to the prior and future uses of such defined words and phrases.

[0035] The drawings included herein and various embodiments used to describe the principle of the present disclosure are only for illustration purpose, and should not be construed as limiting the scope of the present disclosure in any way. In addition, it should be understood by those skilled in the art that the principle of the present disclosure can be implemented in any suitably arranged wireless communication system.

[0036] An objective of the embodiments of the disclosure is to provide a device architecture scheme based on filtering networks. To achieve this objective, the embodiments of the disclosure provide an electronic device in a wireless system, a method executed by an electronic device, and a communication system, specifically:

[0037] In a first aspect, an embodiment of the disclosure provides an A-IoT device in a communication system, including a first filtering network and second filtering network;

[0038] the first filtering network is configured to filter a first RF signal and transmit the filtered first RF signal to a first module used for receiving signals, an operating frequency band of the first filtering network including a signal receiving frequency band of the A-IoT device; and

[0039] the second filtering network is configured to filter a second RF signal and transmit the filtered second RF signal to a second module used for controlling signal reflection, an operating frequency band of the second filtering network including a signal transmitting frequency band of the A-IoT device.

[0040] In an embodiment of the disclosure, the operating frequency band of the first filtering network includes an FDD downlink frequency band or an FDD uplink frequency band, and the operating frequency band of the second filtering network includes an FDD uplink frequency band;

[0041] wherein the FDD downlink frequency band or FDD uplink frequency band included in the operating frequency band of the first filtering network includes a signal receiving frequency band of the A-IoT device, and the FDD uplink frequency band included in the operating frequency band of the second filtering network includes the signal transmitting frequency band of the A-IoT device.

[0042] In an embodiment of the disclosure, the first filtering network also transmits the filtered first RF signal to a third module used for converting signals into electric energy; and / or

[0043] the second filtering network also transmits the filtered second RF signal to the third module.

[0044] In an embodiment of the disclosure, the A-IoT device further includes a third filtering network configured to filter a third RF signal and transmit the filtered third RF signal to the third module used for converting signals into electric energy, and an operating frequency band of the third filtering network includes an energy receiving frequency band of the A-IoT device; and, the third RF signal includes at least one of the first RF signal, the second RF signal and other RF signals.

[0045] In an embodiment of the disclosure, the first filtering network and the second filtering network are the same filtering network.

[0046] In an embodiment of the disclosure, the operating frequency band of the filtering network connected to the third module includes at least one of an FDD downlink frequency band, a guard band and an FDD uplink frequency band; and, at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module includes an energy receiving frequency band of the A-IoT device.

[0047] In an embodiment of the disclosure, the filtering networks are connected in parallel; and, the filtering networks are in switchable connection to a same antenna through switch elements, or the filtering networks are connected to different antennas, respectively.

[0048] In an embodiment of the disclosure, the first filtering network, the second filtering network and the third filtering network are connected in parallel, and a connection relationship between the filtering networks and antennas includes one of the following:

[0049] the first filtering network, the second filtering network and the third filtering network are in switchable connection to a same antenna through switch elements;

[0050] the first filtering network and the second filtering network are in switchable connection to a first antenna through switch elements, and the third filtering network is connected to the first antenna or a second antenna; and

[0051] the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively.

[0052] In an embodiment of the disclosure, the first filtering network and the second filtering network are connected in series, and an input end of one of the filtering networks is connected to an antenna;

[0053] the A-IoT device further includes a switch element which is connected in parallel to one of the filtering networks, and the operating frequency band of the filtering network which is not connected in parallel to the switch element further includes an energy receiving frequency band of the A-IoT device; or

[0054] the A-IoT device further includes switch elements which are connected in parallel to the first filtering network and the second filtering network, respectively.

[0055] In an embodiment of the disclosure, the first module includes an envelope detector, a baseband power amplifier, a baseband filtering network and a comparator which are sequentially connected in series, or includes an envelope detector, a baseband filtering network, a baseband power amplifier and a comparator which are sequentially connected in series.

[0056] In an embodiment of the disclosure, the passband bandwidth of the baseband filtering network is not greater than half of a maximum signal receiving bandwidth associated with A-IoT and / or not less than half of a minimum signal receiving bandwidth associated with A-IoT.

[0057] In a second aspect, an embodiment of the disclosure provides a method executed by an A-IoT device in a communication system, including at least one of the following:

[0058] by a first filtering network, filtering a first RF signal, and transmitting the filtered first RF signal to a first module used for receiving signals, an operating frequency band of the first filtering network including a signal receiving frequency band of the A-IoT device; and

[0059] by a second filtering network, filtering a second RF signal, and transmitting the filtered second RF signal to a third module used for controlling signal reflection, an operating frequency band of the second filtering network including a signal transmitting frequency band of the A-IoT device.

[0060] In an embodiment of the disclosure, the operating frequency band of the first filtering network includes an FDD downlink frequency band or an FDD uplink frequency band, and the operating frequency band of the second filtering network includes an FDD uplink frequency band;

[0061] wherein the FDD downlink frequency band or FDD uplink frequency band included in the operating frequency band of the first filtering network includes a signal receiving frequency band of the A-IoT device, and the FDD uplink frequency band included in the operating frequency band of the second filtering network includes a signal transmitting frequency band of the A-IoT device.

[0062] In an embodiment of the disclosure, the method further includes at least one of the following:

[0063] transmitting, by the first filtering network, the filtered first RF signal to a third module used for converting signals into electric energy; and

[0064] transmitting, by the second filtering network, the filtered second RF signal to the third module.

[0065] In an embodiment of the disclosure, the method further includes:

[0066] by a third filtering network, filtering a third RF signal, and transmitting the filtered third RF signal to the third module used for converting signals into electric energy, an operating frequency band of the third filtering network including an energy receiving frequency band of the A-IoT device, the third RF signal including at least one of the first RF signal, the second RF signal and other RF signals.

[0067] In an embodiment of the disclosure, the operating frequency band of the filtering network connected to the third module includes at least one of an FDD downlink frequency band, a guard band and an FDD uplink frequency band; and, at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module includes an energy receiving frequency band of the A-IoT device.

[0068] In an embodiment of the disclosure, the first filtering network and the second filtering network are connected in parallel; and, the first filtering network and the second filtering network are in switchable connected to a same antenna through switch elements, or the first filtering network and the second filtering network are connected to different antennas, respectively.

[0069] In an embodiment of the disclosure, the first filtering network, the second filtering network and the third filtering network are connected in parallel, and a connection relationship between the filtering networks and antennas includes one of the following:

[0070] the first filtering network, the second filtering network and the third filtering network are in switchable connection to a same antenna through switch elements;

[0071] the first filtering network and the second filtering network are in switchable connection to a first antenna through switch elements, and the third filtering network is connected to the first antenna or a second antenna; and

[0072] the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively.

[0073] In an embodiment of the disclosure, the first filtering network and the second filtering network are connected in series, and an input end of one of the filtering networks is connected to an antenna;

[0074] the A-IoT device further includes a switch element which is connected in parallel to one of the filtering networks, and the operating frequency band of the filtering network which is not connected in parallel to the switch element further includes the energy receiving frequency band of the A-IoT device; or

[0075] the A-IoT device further includes switch elements which are connected in parallel to the first filtering network and the second filtering network, respectively.

[0076] In an embodiment of the disclosure, the first module includes an envelope detector, a baseband power amplifier, a baseband filtering network and a comparator which are sequentially connected in series, or includes an envelope detector, a baseband filtering network, a baseband power amplifier and a comparator which are sequentially connected in series.

[0077] In an embodiment of the disclosure, the passband bandwidth of the baseband filtering network is not greater than half of a maximum signal receiving bandwidth associated with A-IoT and / or not less than half of a minimum signal receiving bandwidth associated with A-IoT.

[0078] In a third aspect, an embodiment of the disclosure provides a wireless communication system, including the A-IoT device provided in the first aspect and any embodiment thereof.

[0079] In a fourth aspect, an embodiment of the disclosure provides an A-IoT device in a wireless communication system, including at least one transceiver and at least one processor coupled to the at least one transceiver, wherein the at least one processor is configured to execute the steps of the method provided in the second aspect and any embodiment thereof.

[0080] In a fifth aspect, an embodiment of the disclosure provides a computer-readable storage medium having computer programs stored thereon that, when run by a processor, execute the steps of the method provided in the second aspect and any embodiment thereof.

[0081] In a sixth aspect, an embodiment of the disclosure provides a computer program product, including computer programs that, when run by a processor, execute the steps of the method provided in the second aspect and any embodiment thereof.

[0082] The beneficial effects achieved by the technical solutions provided in the embodiments of the disclosure will be described below by specific embodiments.

[0083] FIGS. 1 to 3 below describe various embodiments of the disclosure implemented in a wireless communication system. The descriptions of FIGS. 1 to 3 are not meant to imply physical limitations or architecture limitations to the ways in which different embodiments can be implemented. Different embodiments of the disclosure can be implemented in any suitably arranged communication system.

[0084] FIG. 1 shows a schematic structure diagram of a wireless network system according to an embodiment of the disclosure. The embodiment of the wireless network shown in FIG. 1 is for illustration only. Other embodiments of the wireless network (100) could be used without departing from the scope of the disclosure.

[0085] As shown in FIG. 1, the wireless network (100) includes a base station (next generation nodeB, gNB or gNodeB) (101), a gNB (102), and a gNB (103). The gNB (101) communicates with the gNB (102) and the gNB (103). The gNB (101) also communicates with at least one network 130, such as the Internet, a proprietary Internet Protocol (IP) network, or other data network.

[0086] The gNB (102) provides wireless broadband access to the network (130) for a plurality of first user equipments (UEs) within a coverage area (120) of the gNB (102). The plurality of first UEs includes a UE (111), which may be located in a small business; a UE (112), which may be located in an enterprise (E); a UE (113), which may be located in a WiFi hotspot (HS); a UE (114), which may be located in a first residence (R1); a UE (115), which may be located in a second residence (R2); and a UE (116), which may be a mobile device (M), such as a cell phone, a wireless laptop, a wireless personal digital assistant (PDA), or the like. The gNB (103) provides wireless broadband access to the network (130) for a plurality of second UEs within a coverage area (125) of the gNB (103). The plurality of second UEs include the UE (115) and the UE (116), as well as subscriber stations (SS, for example, UEs) (117, 118 and 119). In an embodiment of the disclosure, one or more of the gNBs (101-103) may communicate with each other and with the UEs (111-116) using existing wireless communication techniques, and one or more of the UE (111-119) may communicate directly with each other (e.g., UEs (117-119)) using other existing or proposed wireless communication techniques.

[0087] Depending on the network type, the term "base station" or "BS" can refer to any component (or collection of components) configured to provide wireless access to a network, such as transmit point (TP), transmit-receive point (TRP), an enhanced (or "evolved") base station (eNodeB or eNB), a 5G base station (gNB), a macrocell, a femtocell, a wireless fidelity (WiFi) access point (AP), or other wirelessly enabled devices. Base stations may provide wireless access in accordance with one or more wireless communication protocols, e.g., 3GPP 5G New Radio (NR), Long Term Evolution (LTE), LTE Advanced (LTE-A), high speed packet access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. For the sake of convenience, the various names for a base station-type apparatus and functionality are used interchangeably in the disclosure to refer to network infrastructure components that provide wireless access to remote terminals. Also, depending on the network type, the term "user equipment" (UE) can refer to any component such as a mobile station (MS), subscriber station (SS), remote terminal, wireless terminal, receive point, or user device. For the sake of convenience, the various names for a user equipment-type device and functionality are used interchangeably in the disclosure to refer to remote wireless equipment that wirelessly accesses a BS, whether the UE is a mobile device (such as a mobile telephone or smartphone) or is normally considered a stationary device (such as a desktop computer or vending machine).

[0088] Dotted lines show the approximate extents of the coverage areas (120 and 125), which are shown as approximately circular for the purposes of illustration and explanation only. It should be clearly understood that the coverage areas associated with gNBs, such as the coverage areas (120 and 125), may have other shapes, including irregular shapes, depending upon the configuration of the gNBs and variations in the radio environment associated with natural and man-made obstructions.

[0089] As described in more detail below, one or more of the UEs (111-119) include circuitry, programing, or a combination thereof. In an embodiment of the disclosure, and one or more of the gNBs (101-103) includes circuitry, programing, or a combination thereof.

[0090] Although FIG. 1 illustrates one example of a wireless network, various changes may be made to FIG. 1. For example, the wireless network could include any number of gNBs and any number of UEs in any suitable arrangement. Also, the gNB (101) could communicate directly with any number of UEs and provide those UEs with wireless broadband access to the network (130). Similarly, each gNB (102-103) could communicate directly with the network (130) and provide UEs with direct wireless broadband access to the network (130). Further, the gNBs (101, 102, and / or 103) could provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0091] FIG. 2 shows a schematic structure diagram of an exemplary base station according to an embodiment of the disclosure. The embodiment of the gNB (102) illustrated in FIG. 2 is for illustration only, and the gNBs (101 and 103) of FIG. 1 could have the same or similar configuration. However, gNBs come in a wide variety of configurations, and FIG. 2 does not limit the scope of the disclosure to any particular implementation of a gNB.

[0092] As shown in FIG 2, the gNB (102) includes multiple antennas (200a-200n), multiple radio frequency (RF) transceivers (201a-201n), transmit (TX) processing circuitry (203), and receive (RX) processing circuitry (204). The gNB (102) also includes a controller / processor (205), a memory (206), and a backhaul or network interface (IF) (207).

[0093] The RF transceivers (201a-201n) receive, from the antennas (200a-200n), incoming RF signals, such as signals transmitted by UEs in the network (100). The RF transceivers (201a-201n) down-convert the incoming RF signals to generate intermediate frequency (IF) or baseband signals. The IF or baseband signals are sent to the RX processing circuitry (204), which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry (204) transmits the processed baseband signals to the controller / processor (205) for further processing.

[0094] The TX processing circuitry (203) receives analog or digital data (such as voice data, web data, electronic mail, or interactive video game data) from the controller / processor (205). The TX processing circuitry (203) encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. The RF transceivers (201a-201n) receive the outgoing processed baseband or IF signals from the TX processing circuitry (203) and up-converts the baseband or IF signals to RF signals that are transmitted via the antennas (201a-201n).

[0095] The controller / processor (205) can include one or more processors or other processing devices that control the overall operation of the gNB (102). For example, the controller / processor (205) could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers (201a-201n), the RX processing circuitry (204), and the TX processing circuitry (203) in accordance with well-known principles. The controller / processor (205) could support additional functions as well, such as more advanced wireless communication functions.

[0096] For instance, the controller / processor (205) could support beam forming or directional routing operations in which outgoing signals from multiple antennas (200a-200n) are weighted differently to effectively steer the outgoing signals in a desired direction. Any of a wide variety of other functions could be supported in the gNB (102) by the controller / processor (205).

[0097] The controller / processor (205) is also capable of executing programs and other processes resident in the memory (206), such as an operating system (OS). The controller / processor (205) can move data into or out of the memory (206) as required by an executing process.

[0098] The controller / processor (205) is also coupled to the backhaul or network interface (207). The backhaul or network interface (207) allows the gNB (102) to communicate with other devices or systems over a backhaul connection or over a network. The interface (207) could support communications over any suitable wired or wireless connection(s). For example, when the gNB (102) is implemented as part of a cellular communication system (such as one supporting 5G, LTE, or LTE-A), the interface (207) could allow the gNB (102) to communicate with other gNBs over a wired or wireless backhaul connection. When the gNB (102) is implemented as an access point, the interface (207) could allow the gNB (102) to communicate over a wired or wireless local area network or over a wired or wireless connection to a larger network (such as the Internet). The interface (207) includes any suitable structure supporting communications over a wired or wireless connection, such as an Ethernet or RF transceiver.

[0099] The memory (206) is coupled to the controller / processor (205). Part of the memory (206) could include a random access memory (RAM), and another part of the memory (206) could include a Flash memory or other read only memory (ROM).

[0100] Although FIG. 2 illustrates one example of gNB (102), various changes may be made to FIG. 2. For example, the gNB (102) could include any number of each component shown in FIG. 2. As a particular example, an access point could include a number of interfaces (207), and the controller / processor (205) could support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry (203) and a single instance of RX processing circuitry (204), the gNB (102) could include multiple instances of each (such as one per RF transceiver). Also, various components in FIG. 2 could be combined, further subdivided, or omitted and additional components could be added according to particular needs.

[0101] FIG. 3 shows a schematic structure diagram of an exemplary user equipment according to an embodiment of the disclosure. The embodiment of the UE (116) illustrated in FIG. 3 is for illustration only, and the UEs (111-115 and 117-119) of FIG. 1 could have the same or similar configuration. However, UEs come in a wide variety of configurations, and FIG. 3 does not limit the scope of the disclosure to any particular implementation of a UE.

[0102] As shown in FIG. 3, the UE (116) includes an antenna (301), a radio frequency (RF) transceiver (302), TX processing circuitry (303), a microphone (304), and receive (RX) processing circuitry (305). The UE (116) also includes a speaker (306), a controller or processor (307), an input / output (I / O) interface (IF) (308), an input device (309), a touchscreen display (310), and a memory (311). The memory (311) includes an operating system (OS) (312) and one or more applications (313).

[0103] The RF transceiver (302) receives, from the antenna (301), an incoming RF signal transmitted by an gNB of the network (100). The RF transceiver (302) down-converts the incoming RF signal to generate an IF or baseband signal. The IF or baseband signal is sent to the RX processing circuitry (305), which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. The RX processing circuitry (305) transmits the processed baseband signal to the speaker (306) (such as for voice data) or to the processor (307) for further processing (such as for web browsing data).

[0104] The TX processing circuitry (303) receives analog or digital voice data from the microphone (304) or other outgoing baseband data (such as web data, e-mail, or interactive video game data) from the processor (307). The TX processing circuitry (303) encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver (302) receives the outgoing processed baseband or IF signal from the TX processing circuitry (303) and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna (301).

[0105] The processor (307) can include one or more processors or other processing devices and execute the OS (312) stored in the memory (311) in order to control the overall operation of the UE (116). For example, the processor (307) could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceiver (302), the RX processing circuitry (305), and the TX processing circuitry (303) in accordance with well-known principles. In an embodiment of the disclosure, the processor (307) includes at least one microprocessor or microcontroller.

[0106] The processor (307) is also capable of executing other processes and programs resident in the memory (311), such as processes for CSI (Channel State Information) reporting on uplink channel. The processor (307) can move data into or out of the memory (311) as required by an executing process. In an embodiment of the disclosure, the processor (307) is configured to execute the applications (313) based on the OS (312) or in response to signals received from gNBs or an operator. The processor (307) is also coupled to the I / O interface (308), which provides the UE (116) with the ability to connect to other devices, such as laptop computers and handheld computers. The I / O interface (308) is the communication path between these accessories and the processor (307).

[0107] The processor (307) is also coupled to the touchscreen display (310). The user of the UE (116) can use the touchscreen display (310) to enter data into the UE (116). The touchscreen display (310) may be a liquid crystal display, light emitting diode display, or other display capable of rendering text and / or at least limited graphics, such as from web sites.

[0108] The memory (311) is coupled to the processor (307). Part of the memory (311) could include RAM, and another part of the memory (311) could include a Flash memory or other ROM.

[0109] Although FIG. 3 illustrates one example of UE (116), various changes may be made to FIG. 3. For example, various components in FIG. 3 could be combined, further subdivided, or omitted and additional components could be added according to particular needs. As a particular example, the processor (307) could be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Also, while FIG. 3 illustrates the UE (116) configured as a mobile telephone or smartphone, UEs could be configured to operate as other types of mobile or stationary devices.

[0110] With the popularization and continuous evolution of the Internet of Things (IoT) technology, more and more intelligence devices are connected to the network, thus greatly improving the production efficiency and life comfort. Hundreds of billions of IoT devices bring new challenges while bringing enormous economic benefits. Conventional IoT devices are basically powered by batteries, and batteries need to be replaced or charged manually, resulting on a very high maintenance cost. Moreover, hundreds of billions of batteries may cause serious environmental problems, and even big potential safety hazards in some application scenarios (such as oil exploitation). Ambient-IoT is a new battery-free IoT technology. Ambient-IoT based devices acquire the energy (e.g., solar energy, vibration energy and electromagnetic energy) in the ambient environment by energy harvesting, and convert the energy into electric energy to supply power for themselves, so that the above-mentioned problems can be well handled. Considering that the electromagnetic energy can be generated by other existing radio frequency devices and provide relatively stable ambient energy for Ambient-IoT devices, the Ambient-IoT devices are mainly implemented based on the radio frequency energy harvesting technology.

[0111] Limited by the ambient energy density and the energy harvesting efficiency, the Ambient-IoT devices can only provide very limited electric energy, the complexity and the energy consumption need to be controlled at a very low level, so that it is not sufficient to support the devices to actively generate high-frequency electromagnetic waves for transferring information. A feasible transmission technology with low energy consumption and low complexity is backscatter communication. The backscatter communication is a technology that modulates information onto an external RF signal and reflects it. By adjusting the load impedance, the transmitting node changes the reflection coefficient and enhances the reflection of the incoming RF signal, so that the amplitude, frequency and phase of the external RF signal can be changed by only requiring very low energy consumption, thereby realizing information transfer. Meanwhile, since the device itself is not required to generate high-frequency carriers, the device based on backscatter communication can omit expensive active devices such as high-precision local oscillators, so that the cost and size of the device are greatly reduced. In addition, the Ambient-IoT devices also need signal receiving links with low power consumption, which can usually be realized by an envelope detector and a signal comparator.

[0112] The existing Ambient-IoT devices such as RFIDs operate on an unlicensed spectrum. Considering the cost and complexity of device implementation, these Ambient-IoT devices generally have the fixed operating bandwidth, and transmit and receive signals on the same frequency band. A typical Ambient-IoT device architecture is as shown in FIG. 4. The architecture includes an antenna, an impedance matching network, a receiving module, an energy harvesting and management module, a modulation module and a signal processing module. Wherein the impedance matching network can be implemented by a simple load circuit (e.g., the serial or parallel connection between resistors, capacitors and induction devices). This network can make the impedance Za of the antenna and the impedance Zc of the load circuit achieve conjugate matching, so that the energy transmitted to the load circuit by the antenna is maximized. The receiving module can be implemented by an envelope detector with low power consumption and a signal comparator, its input is the RF signal received by the antenna, and its output is a digital baseband signal. The energy harvesting and management module can be composed of a rectifier, a voltage limiting circuit and a voltage stabilizing circuit, and this module can convert an RF signal into electric energy and provide stable DC voltage for the load circuit. The modulation module (or backscatter modulation module) is composed of an impedance-variable circuit, and this module can mismatch the input impedance of the whole load circuit and the impedance of the antenna by changing the circuit impedance, so as to increase the reflection coefficient of the Ambient-IoT device, so that a part of the input RF signal is reflected. The change of the impedance can be controlled by a signal processing module. A common implementation is to change the impedance by switching. The signal processing module can demodulate and / or decode the digital baseband signal generated by the receiving module, and can control the modulation module to perform backscatter transmission. It can be seen that the existing Ambient-IoT device shown in FIG. 4 cannot distinguish the frequency bands on which the device transmits and receives signals. In other words, all the signals received by the antenna will be input to the receiving module or reflected. It is to be noted that, in a specific implementation, the antenna may be designed in cooperation with the impedance matching network, that is, the impedance matching network will not be marked separately. In a specific implementation, there may be other unmarked modules, for example, a sensor, a clock recovery generation circuit, a start signal generation circuit or the like. In a specific implementation, these modules may have different names. For example, the energy harvesting and management module may also be called a power recovery circuit.

[0113] However, how the Ambient-IoT devices operate on the license spectrum of the cellular network is a problem to be solved.

[0114] For cellular-based Ambient-IoT devices, the frequency bands on which the devices transmit and receive signals may be located on the same frequency bands or different frequency bands. For example, when an Ambient-IoT device operates on a frequency division duplexing (FDD) frequency band, if the network node communicated with this device is a base station (BS), signal reception needs to be performed on the downlink part of the FDD frequency band because it is stipulated that the BS can only perform transmission in the downlink frequency band; and, if the network node communicated with this device is a user equipment (UE), signal reception needs to be performed on the uplink part of the FDD frequency band because it is stipulated that the UE can only perform transmission on the uplink frequency band. When the architecture of the existing Ambient-IoT device shown in FIG. 4 is adopted, in order to satisfy the requirements for communication with both the base station and the UE, the Ambient-IoT device needs to operate on a wider frequency band covering FDD uplink, guard band and downlink. Since the bandwidth of the received signal is much less than the operating bandwidth of the device, the signals on other frequency bands will cause great interference to the received signal, thus seriously affecting the reception performance of the downlink signal.

[0115] The specific architecture of the electronic device in the wireless communication network according to an embodiment of the disclosure will be described below with reference to FIGS. 5-20.

[0116] Specifically, as shown in FIG. 5, the electronic device in the wireless communication network provided in the embodiment of the disclosure may be an Ambient-IoT (A-IoT) device. This A-IoT device may communicate with other nodes in the communication network, for example, communicating with a network node BS, communication with a network node UE, or the like.

[0117] The disclosure provides an Ambient-IoT device architecture based on filtering networks, which can make the device flexibly operate in different scenarios without significantly increasing the complexity and power consumption of the device.

[0118] An Ambient-IoT device architecture based on a filtering network may include at least two filtering networks, and may control frequency bands on which the Ambient-IoT device perform signal reception and transmission by switching the filtering networks. Wherein, each filtering network may be implemented by a simple load circuit (e.g., serial or parallel connection between resistors, capacitors and induction devices), and different filtering networks may realize filter functions of different frequency bands. That is, the signals within the passband bandwidth of the filtering networks can pass almost without attenuation, while the signals beyond the passband bandwidth will be attenuated to a certain extent. The degree of attenuation depends on the roll-off characteristics of the filtering networks. The frequency response characteristic of each filtering network is determined by the frequency range, frequency band bandwidth and frequency offset Foffset of the target operating frequency band, wherein the frequency offset Foffset is related to the passband symmetry of the filtering network. If the passband symmetry is lower (the central frequency of the passband is farther away from the central frequency band of the operating frequency band), Foffset is larger; if the passband symmetry is higher (the central frequency of the passband is closer to the central frequency band of the operating frequency band, Foffset is smaller; and, if the passband is completely centrosymmetrical, Foffset=0. For example, for a certain filtering network, if the frequency range of the target operating frequency band is F1 to F2 (F1<F2) and the bandwidth is BF1 =F2-F1, the passband width of this filtering network is BF1, and the central frequency point is F1+BF1 / 2±Foffset. Wherein, the target operating frequency band may be an energy receiving frequency band, that is, the RF signal received by the Ambient-IoT device on this frequency band may be used to supply power for itself; or, the target operating frequency band may be an Ambient-IoT downlink frequency band (also called as a signal receiving frequency band), that is, the Ambient-IoT device demodulates the RF signal received on this frequency band; or, the target operating frequency band may also be an Ambient-IoT uplink frequency band (also called a signal transmitting frequency band), that is, the Ambient-IoT device performs signal transmission (or reflection) on this frequency band.

[0119] In an embodiment of the disclosure, the antenna and the filtering networks may be cooperatively designed in a module. In an embodiment of the disclosure, the impedance matching circuit may be cooperatively designed with the antenna, and may also be located in the filtering networks. In an embodiment of the disclosure, the filtering networks may be connected in parallel or in series.

[0120] In an example, the A-IoT device may include a first filtering network and a second filtering network.

[0121] Optionally, as shown in FIG. 6, the first filtering network (the filtering network 1 shown in FIG. 6) may be configured to filter a first RF signal (an RF signal received through an antenna) and transmit the filtered first RF signal to a first module (also called a receiving module) used for receiving signals. Correspondingly, the operating frequency band of the first filtering network includes the signal receiving frequency band of the A-IoT device. The second filtering network (the filtering network 2 shown in FIG. 6) may be configured to filter a second RF signal (an RF signal transmitted out) and transmit the filtered second RF signal to a second module (also called a transmitting module or a modulation module) used for controlling signal reflection. Correspondingly, the operating frequency band of the second filtering network includes the signal transmitting frequency band of the A-IoT device.

[0122] Optionally, the A-IoT device may operate on an FDD frequency band. Correspondingly, the FDD downlink frequency band or FDD uplink frequency band included in the operating frequency band of the first filtering network includes the signal receiving frequency band of the A-IoT device, and the FDD uplink frequency band included in the operating frequency band of the second filtering network includes the signal transmitting frequency band of the A-IoT device.

[0123] Optionally, it is adapted to a situation where the A-IoT device acquires the energy in the ambient environment by the energy harvesting technology, and the embodiments of the disclosure further provide the following feasible architectures.

[0124] Example 1: as shown in FIG. 6, the first filtering network may also transmit the filtered first RF signal to a third module (also called an energy harvesting and management module or a power recovery module) used for converting signals into electric energy; and / or, the second filtering network may also transmit the filtered second RF signal to the third module.

[0125] Example 2: The A-IoT device is also configured with a third filtering network (the filtering network 3 shown in FIG. 9, the filtering network 3 shown in FIG. 11, the filtering network 1 shown in FIG. 13, the filtering network 1 shown in FIG. 14, the filer network 1 shown in FIG. 15, etc.), and the third filtering network may be configured to filter a third RF signal and transmit the filtered third RF signal to the third module used for converting signals into electric energy. It is adapted to different design architectures, and the signal included in the third RF signal may be different. Optionally, the third RF signal may include at least one of the first RF signal, the second RF signal and other RF signals.

[0126] In an example, as shown in FIG. 13, the first filtering network and the second filtering network may also be configured as the same filtering network. That is, the first module and the second module are connected through the same filtering network (the filtering network 2 shown in FIG. 2), and the third module is connected through another filtering network (the third filtering network, or the filtering network 1 shown in FIG. 13).

[0127] In an example, it is adapted to the operating frequency band of the filtering network connected to the third module in the A-IoT device. When the A-IoT device operates on the FDD frequency band, the operating frequency band of the filtering network connected to the third module includes at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band. Correspondingly, at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module includes the energy receiving frequency band of the A-IoT device.

[0128] In an embodiment of the disclosure, when the A-IoT device is configured with two filtering networks, the filtering networks may be connected in parallel, and in this structure, the connection relationship between the filtering networks and antennas may include one of the following:

[0129] connection relationship 1: the filtering networks may be connected to the same antenna through switch elements, as shown in FIG. 6; and

[0130] connection relationship 2: the filtering networks are connected to different antennas, respectively, as shown in FIGS. 12 and 13.

[0131] In an embodiment of the disclosure, when the A-IoT device is configured with a first filtering network, a second filtering network and a third filtering network, the filtering networks may be connected in parallel, and in this structure, the connection relationship between the filtering networks and antennas may include one of the following:

[0132] connection relationship 1: the first filtering network, the second filtering network and the third filtering network are in switchable connection to the same antenna through switching elements, as shown in FIG. 9;

[0133] connection relationship 2: the first filtering network and the second filtering network are in switchable connection to a first antenna through switching elements, and the third filtering network is connected to the first antenna (as shown in FIG. 11) or a second antenna (as shown in FIG. 14); and

[0134] connection relationship 3: the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively, as shown in FIG. 15.

[0135] In an embodiment of the disclosure, the first filtering network and the second filtering network configured in the A-IoT device may be connected in series; and, based on this structure, an input end of one of the filtering networks is connected to an antenna. In order to switch the filtering networks for communication, switch elements may also be connected in parallel in the A-IoT device with regard to the configured filtering networks. Optionally, the A-IoT device may include one of the following design structures:

[0136] Structure 1: the A-IoT device includes a switch element which is connected in parallel to one of the filtering networks, and correspondingly, the operating frequency band of the filtering network which is not connected in parallel to the switch element further includes the energy receiving frequency band of the A-IoT device. Exemplarily, as shown in FIG. 16, the first filtering network (the filtering network 1 shown in FIG. 16) is connected to an antenna, the second filtering network (the filtering network 2 shown in FIG. 16) is connected in series to the first filtering network, and the switch element is connected in parallel to the second filtering network. By controlling the switch element, the used filtering network can be selected to be the combination of the filtering network 1 and the filtering network 2 or the filtering network 1.

[0137] Structure 2: the A-IoT device includes switch elements that are connected in parallel to the first filtering network and the second filtering network, respectively. As shown in FIG. 17, the filtering networks are connected with switch elements in parallel respectively. Exemplarily, the filtering network 1 may be used by controlling the switch-off of the switch 1 and the switch-on of the switch 2; the filtering network 2 may be used by controlling the switch-on of the switch 1 and the switch-off of the switch 2; and, the combination of the filtering network 1 and the filtering network 2 may be used by controlling the switch-off of the switch 1 and the switch 2.

[0138] Some feasible embodiments will be given below for the A-IoT device architecture provided by the disclosure.

[0139] An implementation based on the Ambient-IoT device of the disclosure is shown in FIG. 6. This device architecture includes an antenna, a switch, a filtering network 1, a filtering network 2, a receiving module, an energy harvesting and management module, a modulation module and a signal processing module. In a specific implementation, optionally, this device may include other unmarked modules, for example, a sensor, a clock recovery generation circuit, a start signal generation circuit or the like. In a specific implementation, these modules may have different names. For example, the energy harvesting and management module may also be called a power recovery circuit. The switch may be controlled by the signal processing module to switch to the filtering network 1 or the filtering network 2. In a possible implementation, as shown in FIG. 7, the passband bandwidth of the filtering network 1 is the bandwidth of the FDD downlink frequency band on which this device operates, and the passband bandwidth of the filtering network 2 is the bandwidth of the FDD uplink frequency band on which this device operates. For the filtering network 1 in which the passband is centrosymmetrical, the central frequency of the passband may be the central frequency point of this FDD downlink frequency band; while for the filtering network 1 in which the passband is not centrosymmetrical, the central frequency of the passband may be the central frequency point of this FDD downlink frequency band ± Foffset1, where Foffset1 is related to the passband symmetry of the filtering network 1. For the filtering network 2 in which the passband is centrosymmetrical, the central frequency of the passband may be the central frequency point of this FDD uplink frequency band; while for the filtering network 2 in which the passband is not centrosymmetrical, the central frequency of the passband may be the central frequency point of this FDD uplink frequency band ± Foffset2, where Foffset2 is related to the passband symmetry of the filtering network 2.

[0140] If this device communicates with a BS, the filtering network 1 corresponds to the Ambient-IoT downlink frequency band 1 and the energy receiving frequency band, and the filtering network 2 corresponds to the Ambient-IoT uplink frequency band and the energy receiving frequency band. When the switch is switched to the filtering network 1, after the broadband RF signal received by the antenna passes through the filtering network 1, only the narrowband signal corresponding to the downlink part of the FDD frequency band can pass without attenuation, wherein some signals enter the receiving module, while some signals enter the energy receiving and management module; and, when the switch is switched to the filtering network 2, the signal processing module may control an antenna reflection coefficient by adjusting the impedance of the modulation module, so as to modulate information and transmit the information on the FDD uplink frequency band, and the energy is harvested by using signals that are not reflected. If this device communicates with a UE, the filtering network 2 corresponds to the Ambient-IoT uplink frequency band, the A-IoT downlink frequency band and the energy receiving frequency band. In this case, the switch is switched to the filtering network 2, and the signal processing module may control the antenna reflection coefficient by adjusting the impedance of the modulation module, so as to control this device to receive or reflect signals on only the uplink part of the FDD frequency band, and the energy is harvested by using some signals that are not reflected.

[0141] In this implementation, the Ambient-IoT can control the frequency band on which this device receives signals by only adjusting the switch and the impedance of the modulation module, so the receiving module and the signal processing module only need to process narrowband signals, so that the influence of out-of-band interference produced on other frequencies is avoided, and this device can flexibly operate in different application scenarios.

[0142] In the Ambient-IoT device architecture shown in FIG. 6, the filtering network 2 may also be a broadband filtering network whose passband bandwidth includes an FDD downlink frequency band, a guard band and an FDD uplink frequency band or a wider frequency band. As shown in FIG. 8, in this case, the central frequency point of the filtering network 2 may fall within the guard band. In this implementation, the Ambient-IoT device has the widest energy receiving frequency band. When the switch is switched to the filtering network 2, the energy harvesting module may harvest energy in a wider frequency band range and produce electric energy required for the operation of the circuit more efficiently.

[0143] In another feasible implementation, the Ambient-IoT device architecture may include three filtering networks, which correspond to three operating frequency bands, respectively. As shown in FIGS. 9 and 10, the filtering network 1 and the filtering network 2 correspond to the downlink frequency band and uplink frequency band of FDD, respectively, are connected to the receiving module and the energy harvesting and management module, respectively, and are configured to receive downlink signals sent to the Ambient-IoT device on the corresponding frequency signals. The filtering network 3 is a broadband filtering network whose passband bandwidth includes an FDD downlink frequency band, a guard band and an FDD uplink frequency band or a wider frequency band, is connected to the energy harvesting and management module and the modulation module, and is configured to provide energy to the Ambient-IoT device and reflect uplink signals. In this implementation, the Ambient-IoT device may operate in a scenario of communicating with a BS or UE, and harvests RF energy in a wider frequency band.

[0144] In another feasible implementation, as shown in FIG. 11, in this case, the filtering network 1 is connected to the receiving module, and is only configured to receive downlink signals sent to the Ambient-IoT device on the corresponding frequency bands, where the passband is an FDD downlink frequency band including an IoT downlink frequency band; the filtering network 3 is connected to the energy harvesting and management module, and is only configured to charge energy to the Ambient-IoT device, where the passband is an energy receiving frequency band, including an FDD downlink frequency band and / or a guard band and / or an FDD uplink frequency band including an Ambient-IoT uplink frequency band; and, the filtering network 2 is connected to the receiving module and the modulation module, and may control the Ambient-IoT device to reflect signals on the FDD uplink frequency band through the modulation module, and the corresponding passband is an FDD uplink frequency band including an Ambient-IoT uplink frequency band and / or an Ambient-IoT downlink frequency band. In this implementation, the Ambient-IoT device can operate in a scenario of communicating with a BS or UE. Moreover, by decoupling the filtering network 3 from the receiving module and the transmitting module, the Ambient-IoT device can harvest energy on a wide frequency band, so that the communication distance of the Ambient-IoT device can be further expanded without affecting the signal transmission and reception performances.

[0145] In addition to the above implementation, the Ambient-IoT device architecture provided by the disclosure can also be implemented by a combination of multiple antennas and / or filtering networks.

[0146] In a feasible implementation, as shown in FIG. 12, the Ambient-IoT device has two antennas and two filtering networks, wherein the antenna 1 is connected to the filtering network 1 (in this case, the operating bandwidth of the Ambient-IoT device is an FDD downlink frequency band including an Ambient-IoT downlink frequency band), is connected to the receiving module and the energy harvesting and management module, and is configured to provide energy to the Ambient-IoT device and receive downlink signals transmitted to the Ambient-IoT device on the corresponding frequency bands; the antenna 2 is connected to the filer network 2 (the corresponding passband bandwidth is a bandwidth of a FDD uplink frequency band including an Ambient-IoT uplink frequency band and / or an Ambient-IoT downlink frequency band), is connected to the receiving module, the energy harvesting and management module and the modulation module, and is configured to provide energy to the Ambient-IoT device, receive uplink signals transmitted to the Ambient-IoT device by the UE on the FDD uplink frequency band during the communication with the UE, and reflect the uplink signals through the modulation module. This mode supports the cooperative design of antennas and filtering networks, can be easily implemented in the absence of a separate filtering network module, supports the communication of the Ambient-IoT device with the BS and UE, and can be flexibly applied to different operation scenarios.

[0147] In another implementation of 2 antennas + 2 filer networks, as shown in FIG. 13, the antenna 1 is connected to the filtering network 1 and the energy harvesting and management module and configured to harvest energy for the Ambient-IoT device. In this case, the passband of the filtering network 1 corresponds to the energy receiving frequency band, including an FDD downlink frequency band and / or a guard band and / or an FDD uplink frequency band including an Ambient-IoT uplink frequency band. The antenna 2 is connected to the filtering network 2, the receiving module and the modulation module, and receives uplink signals transmitted to the Ambient-IoT device by the UE on the FDD uplink frequency band during the communication with the UE and reflects the uplink signals through the modulation module. In this case, the passband of the filtering network 2 corresponds to an FDD uplink frequency band including an Ambient-IoT uplink frequency band and an Ambient-IoT downlink frequency band. In this implementation, the antenna 1 can be configured to harvest energy for the Ambient-IoT device, the energy harvesting efficiency of the Ambient-IoT device can be effectively improved, and it is unnecessary to additionally extract energy from the received signal and the reflected signal, so that the communication distance of the Ambient-IoT device can further expanded.

[0148] In a feasible implementation, the Ambient-IoT device may have two antennas and three filtering networks, as shown in FIG. 14. The antenna 1 is connected to the filtering network 1 and the energy harvesting and management module, and is configured to harvest energy for the Ambient-IoT device, where the passband corresponds to the energy receiving frequency band, including an FDD downlink frequency band and / or a guard band and / or an FDD uplink frequency band. The antenna 2 is connected to the filtering network 2 and the filtering network 3, and the filtering network 2 is further connected to the receiving module and configured to receive downlink signals sent to the Ambient-IoT device on the corresponding frequency bands, where the passband corresponds to an FDD downlink frequency band including an Ambient-IoT downlink frequency band. The filtering network 3 is further connected to the receiving module and the modulation module, and is configured to provide energy to the Ambient-IoT device, receive uplink signals transmitted to the Ambient-IoT device by the UE on the FDD uplink frequency band during the communication with the UE and reflect the uplink signals through the modulation module, where the passband corresponds to an FDD uplink frequency band including an Ambient-IoT uplink frequency band and / or an Ambient-IoT downlink frequency band. In this implementation, the antenna 1 can be configured to harvest energy for the Ambient-IoT device, the energy harvesting efficiency of the Ambient-IoT device can be effectively improved, and it is unnecessary to additionally extract energy from the received signal and the reflected signal, so that the communication distance of the Ambient-IoT device can further expanded. Moreover, this implementation supports the communication of the Ambient-IoT device with both the BS and UE, and can be flexibly applied to different operation scenarios.

[0149] In a feasible implementation, the Ambient-IoT device may have three antennas and three filtering networks, as shown in FIG. 15. The antenna 1 is connected to the filtering network 1 and the energy harvesting and management module, and is configured to harvest energy for the Ambient-IoT device, where the passband corresponds to the energy receiving frequency band, including an FDD downlink frequency band and / or a guard band and / or an FDD uplink frequency band including an Ambient-IoT uplink frequency band; the antenna 2 is connected to the filtering network 2 and the receiving module, and is configured to receive downlink signals sent to the Ambient-IoT device on the corresponding frequency bands, where the passband corresponds to an FDD downlink frequency band including an Ambient-IoT downlink frequency band; and, the antenna 3 is connected to the filtering network 3, the receiving module and the modulation module, and is configured to provide energy to the Ambient-IoT device, receive uplink signals transmitted to the Ambient-IoT device by the UE on the FDD frequency band during the communication with the UE and reflect the uplink signals through the modulation module, where the passband corresponds to an FDD uplink frequency band including an Ambient-IoT uplink frequency band and / or an Ambient-IoT downlink frequency band. In this implementation, the antenna 1 can be configured to harvest energy for the Ambient-IoT device, the energy harvesting efficiency of the Ambient-IoT device can be effectively improved, and it is unnecessary to additionally extract energy from the received signal and the reflected signal, so that the communication distance of the Ambient-IoT device can further expanded. Moreover, this implementation supports the communication of the Ambient-IoT device with both the BS and UE, and can be flexibly applied to different operation scenarios. In addition, this implementation also supports the cooperative design of antennas and filtering networks, and can be easily implemented in the absence of a separate filtering network module.

[0150] In addition to the above implementation, the filtering networks in the Ambient-IoT device architecture provided by the disclosure may also be connected in series.

[0151] In a feasible implementation, as shown in FIG. 16, the signal processing module can select the used filtering network to be the combination of the filtering network 1 and the filtering network 2 or only the filtering network 1 by controlling the switch-on / off of the switch. The switch-on and switch-off of the switch corresponds to the filtering effects of two different frequency bands. For example, when the switch is switched off, the operating frequency band of the Ambient-IoT device is the combined passband of the filtering network 1 and the filtering network 2, which may be an FDD downlink frequency band or an FDD uplink frequency band; and, when the switch is switched on, the operating frequency band of the Ambient-IoT device is the passband of the filtering network 1, which corresponds to the energy receiving frequency band, including an FDD downlink frequency band and / or a guard band and / or an FDD uplink frequency band including an Ambient-IoT uplink frequency band. Compared with the filtering networks connected in parallel, the filtering networks connected in series allow some elements to the shared, so that the cost of the Ambient-IoT device is further reduced.

[0152] In another feasible implementation, there are two switches, which control the connection of the filtering network 1 and the filtering network 2, respectively, as shown in FIG. 17. The filtering network 1 and the filtering network 2 are used to correspond to different operating bandwidths, respectively. For example, when the switch 1 is switched off and the switch 2 is switched on, the filtering network 1 is used, the operating frequency band of the Ambient-IoT device is the FDD uplink frequency band, and signal reception and reflection on this frequency band are performed; when the switch 1 is switched on and the switch 2 is switched off, the filtering network 2 is used, the operating frequency band of the Ambient-IoT device is the FDD downlink frequency band, and signal reception on this frequency band is performed; and, when the switches 1 and 2 both are switched on, the operating frequency band of the Ambient-IoT device is the receiving frequency band of the antenna, and the signals on a wider frequency band may be received to supply power to the Ambient-IoT device. This design ensures the receiving reliability of the Ambient-IoT device, reduces the interference to other users, and can further improve the charging efficiency of the Ambient-IoT device.

[0153] The disclosure further provides a receiving module design based on a baseband power amplifier and a filtering network, so that the Ambient-IoT device with this receiving module can amplify the received signal through the low-power-consumption power amplifier and improve the demodulation capability of the receiving module for small signals. Moreover, due to the existence of the baseband filter, this device can realize the accurate receiving of signals in the presence of in-band interference.

[0154] A feasible implementation of the receiving module is shown in FIG. 18, including an envelope detector, a baseband power amplifier, a baseband filtering network and a comparator. Wherein, the baseband power amplifier may amplify the baseband signal output by the envelope detector, and the baseband filtering network may perform low-pass filtering on the input signal and is implemented by a simple load circuit. Wherein, the passband bandwidth of the baseband filtering network should not exceed half of the maximum bandwidth allocated to the Ambient-IoT downlink service (signal reception) by the network, and should not be less than half of the minimum bandwidth allocated to the Ambient-IoT downlink service by the network. For example, for an FDD downlink frequency band having a total operating bandwidth of 10 MHz, the effective bandwidth may be divided into 50 physical resource blocks (PRBs), each of which is 180 kHz. If the network stipulates that the Ambient-IoT downlink service can only be performed on 10 PRBs and the minimum bandwidth is 1 PRB, the passband bandwidth of the baseband filtering network should be greater than or equal to 0.5 PRB and less than or equal to 5 PRBs. This implementation can allow the baseband filer network to filter the broadband noise / interference generated by the baseband power amplifier, and further improve the signal to interference plus noise ratio (SINR) of the signal input to the comparator.

[0155] For example, when the broadband RF signal received by the antenna reaches the receiving module through the above-described filtering network 1 of the disclosure, the input of the receiving module is the RF signal within the passband bandwidth range of the filtering network 1, as shown in FIG. 19. It is possible to include useful signals distributed near the center of the passband of the filtering network 1 (or signals to be demodulated by the Ambient-IoT device), and interference signals (e.g., signals from other users) distributed both sides of the passband of the filtering network 1. This input signal passes through the envelope detector to remove high-frequency components and is then moved to the baseband. In this case, the baseband bandwidth also includes useful signals and interference signals. The signal components that pass through the baseband power amplifier and the filtering network and are then input to the comparator are mainly the amplified useful signals and the residual interference and noise in the filter, and thus can be correctly demodulated by the Ambient-IoT device.

[0156] Another feasible implementation of the receiving module is shown in FIG. 20, wherein the baseband filtering network is located before the baseband power amplifier. This implementation can allow the baseband power amplifier to compensate for the power loss of the filtered signal to a certain extent.

[0157] It is to be noted that the optional solutions provided in the above various embodiments of the disclosure can be implemented separately, and the embodiments or the steps in the embodiments can also be implemented in combination when the implementation steps in different embodiments are not conflicted.

[0158] Based on the same inventive concept, an embodiment of the disclosure further provides a method executed by an electronic device in a wireless communication system. This method can be applied to the electronic device in a communication system provided in the above embodiment. Specifically, as shown in FIG. 21, this method may include at least one of the following steps S101 to S102.

[0159] In S101, a first filtering network filters a first RF signal, and transmits the filtered first RF signal to a first module used for receiving signals, an operating frequency band of the first filtering network including a signal receiving frequency band of the A-IoT device.

[0160] In S102, a second filtering network filters a second RF signal, and transmits the filtered second RF signal to a third module used for controlling signal reflection, an operating frequency band of the second filtering network including a signal transmitting frequency band of the A-IoT device.

[0161] Optionally, as shown in FIG. 6, it is assumed that the first filtering network corresponds to the filtering network 1 and the second filtering network corresponds to the filtering network 2, and different filtering networks may be switched by controlling a switch to realize signal reception or signal transmission.

[0162] Optionally, as shown in FIG. 13, it is assumed that the first filtering network and the second filtering network belong to the filtering network 2, and different filtering networks may be switched by controlling a switch to realize energy harvesting or signal reception and signal transmission.

[0163] In an embodiment of the disclosure, the method provided in the embodiment of the disclosure may further include at least one of the following S103 to S104.

[0164] In S103, the first filtering network transmits the filtered first RF signal to a third module used for converting signals into electric energy.

[0165] In S104, the second filtering network transmits the filtered second RF signal to the third module.

[0166] Optionally, as shown in FIGS. 6, 9 and 12, the filtering network 1 connected to the first module may also be connected to the third module. On this basis, the filtering network 1 may also transmit the filtered first RF signal to the third module, so that the third module converts the filtered first RF signal into electric energy. In addition, the filtering network 2 connected to the second module may also be connected to the third module. On this basis, the filtering network 2 may also transmit the filtered second RF signal to the third module, so that the third module converts the filtered second RF signal into electric energy.

[0167] In an embodiment of the disclosure, the method provided in the embodiment of the disclosure may further include S105.

[0168] In S105, a third filtering network filters a third RF signal, and transmits the filtered third RF signal to the third module used for converting signals into electric energy, an operating frequency band of the third filtering network including an energy receiving frequency band of the A-IoT device, the third RF signal including at least one of the first RF signal, the second RF signal and other RF signals.

[0169] Optionally, as shown in FIGS. 9, 11, 13, 14 and 15, on the basis that the A-IoT device is configured with a third filtering network, energy may also be harvested by the third filtering network, so that the energy harvesting efficiency of the A-IoT device is effectively improved, it is unnecessary to extract energy from the received signal and the reflected signal, and the communication distance of the A-IoT device can be expanded.

[0170] In an embodiment of the disclosure, the method provided in the embodiment of the disclosure may further include S106.

[0171] In S106, by controlling switch elements connected in series or parallel to the filtering networks, different filtering networks are switched to communicate with antennas.

[0172] Optionally, as shown in FIG. 6, the signal processing module can control the connection relationship between the switch and the filtering networks, so as to switch different filtering networks for communication. If the A-IoT device communicates with a BS and the switch is connected to the first filtering network (filtering network 1), after the broadband RF signal received by the antenna passes through the filtering network 1, the narrowband signal corresponding to the downlink part of the FDD frequency band can pass without attenuation, wherein some signals enter the receiving module, while some signals enter the energy receiving and management module; and, when the switch is switched to the second filtering network (filtering network 2), the signal processing module may control an antenna reflection coefficient by adjusting the impedance of the modulation module, so as to modulate information and transmit the information on the FDD uplink frequency band, and the energy is harvested by using signals that are not reflected. If the A-IoT device communicates with a UE and the switch is switched to the filtering network 2, the signal processing module may control the antenna reflection coefficient by adjusting the impedance of the modulation module, so as to control this device to receive or reflect signals on only the uplink part of the FDD frequency band, and the energy is harvested by using some signals that are not reflected.

[0173] Optionally, as shown in FIG. 16, by controlling the switch by the signal processing module, it can be determined whether communication is performed by using the filtering network 1 or the combination of the filtering network 1 and the filtering network 2.

[0174] Based on the same inventive concept, an embodiment of the disclosure further provides a wireless communication system. This wireless communication system includes the electronic device (e.g., Ambient-IoT device) provided in the above embodiment.

[0175] An embodiment of the disclosure further provides an electronic device, for example, the A-IoT device in the above wireless communication system. This electronic device includes at least one transceiver and at least one processor coupled to the at least one transceiver. The at least one processor is configured to execute the method provided in any one optional embodiment of the present disclosure.

[0176] FIG. 22 shows a schematic structure diagram of an electronic device (4000) according to an embodiment of the disclosure. As shown in FIG. 22, the electronic device (4000) shown in FIG. 22 may include a processor (4001) and a memory (4003). The processor (4001) is connected to the memory (4003), for example, through a bus (4002). Optionally, the electronic device (4000) may further include a transceiver (4004). It should be noted that, in practical applications, the transceiver (4004) is not limited to one, and the structure of the electronic device (4000) does not constitute any limitations to the embodiments of the disclosure. Optionally, the electronic device may be a node in a wireless communication system, such as an Ambient-IoT device, and the node in the network may be a user device or a base station or other network node.

[0177] The processor (4001) may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logical blocks, modules and circuits described in connection with the present disclosure. The processor (4001) may also be a combination for realizing computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0178] The bus (4002) may include a path to transfer information between the components described above. The bus (4002) may be a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus, etc. The bus (4002) may be an address bus, a data bus, a control bus, etc. For ease of presentation, the bus is represented by only one thick line in FIG. 22. However, it does not mean that there is only one bus or one type of buses.

[0179] The memory (4003) may be, but not limited to, read only memories (ROMs) or other types of static storage devices that can store static information and instructions, random access memories (RAMs) or other types of dynamic storage devices that can store information and instructions, may be electrically erasable programmable read only memories (EEPROMs), compact disc read only memories (CD-ROMs) or other optical disk storages, optical disc storages (including compact discs, laser discs, discs, digital versatile discs, blue-ray discs, etc.), magnetic storage media or other magnetic storage devices, or any other media that can carry or store desired program codes in the form of instructions or data structures and that can be accessed by computers, without limitation herein.

[0180] The memory (4003) is used to store computer program for executing the solutions of the disclosure, and is controlled by the processor (4001). The processor (4001) is used to execute the computer program stored in the memory (4003) to implement the solution provided in any method embodiment described above.

[0181] According to an embodiment of the disclosure, wherein the operating frequency band of the first filtering network comprises a frequency division duplex (FDD) downlink frequency band or an FDD uplink frequency band, wherein the operating frequency band of the second filtering network comprises an FDD uplink frequency band, wherein the FDD downlink frequency band or the FDD uplink frequency band included in the operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, and wherein the FDD uplink frequency band included in the operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.

[0182] According to an embodiment of the disclosure, wherein the first filtering network is further configured to transmit the filtered first RF signal to a third module used for converting signals into electric energy, and wherein the second filtering network is further configured to transmit the filtered second RF signal to the third module.

[0183] According to an embodiment of the disclosure, wherein the electronic device further comprises a third filtering network configured to filter a third RF signal and transmit the filtered third RF signal to the third module used for converting signals into electric energy, wherein an operating frequency band of the third filtering network comprises an energy receiving frequency band of the electronic device, and wherein the third RF signal comprises at least one of the first RF signal, the second RF signal and other RF signals.

[0184] According to an embodiment of the disclosure, wherein the operating frequency band of a filtering network connected to the third module comprises at least one of an FDD downlink frequency band, a guard band and an FDD uplink frequency band, and wherein the at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module comprises an energy receiving frequency band of the electronic device.

[0185] According to an embodiment of the disclosure, wherein the first filtering network and the second filtering network are connected in parallel, and a connection relationship between the first filtering network, the second filtering network, and antennas comprises one of following: wherein the first filtering network and the second filtering network are in switchable connection to a same antenna through switch elements, and wherein the first filtering network and the second filtering network are connected to different antennas, respectively.

[0186] According to an embodiment of the disclosure, wherein the first filtering network, the second filtering network and the third filtering network are connected in parallel, and a connection relationship between the first filtering network, the second filtering network, the third filtering network, and antennas comprises one of following: wherein the first filtering network, the second filtering network and the third filtering network are in switchable connection to a same antenna through switch elements, wherein the first filtering network and the second filtering network are in switchable connection to a first antenna through switch elements, and the third filtering network is connected to the first antenna or a second antenna, and wherein the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively.

[0187] According to an embodiment of the disclosure, wherein the first filtering network and the second filtering network are connected in series, and an input end of one filtering network is connected to an antenna, wherein the electronic device further comprises a switch element which is connected in parallel to at least one of the first filtering network and the second filtering network, and wherein an operating frequency band of a filtering network which is not connected in parallel to the switch element further comprises an energy receiving frequency band of the electronic device.

[0188] According to an embodiment of the disclosure, the method further comprising: transmitting, by the first filtering network, the filtered first RF signal to a third module used for converting signals into electric energy; and transmitting, by the second filtering network, the filtered second RF signal to the third module.

[0189] According to an embodiment of the disclosure, the method further comprising: by a third filtering network, filtering a third RF signal, and transmitting the filtered third RF signal to the third module used for converting signals into electric energy, wherein an operating frequency band of the third filtering network comprises an energy receiving frequency band of the electronic device, and wherein the third RF signal comprising at least one of the first RF signal, the second RF signal and other RF signals.

[0190] Embodiments of the disclosure provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, the computer program, when executed by a processor, implements the steps and corresponding contents of the foregoing method embodiments.

[0191] Embodiments of the disclosure also provide a computer program product including a computer program, the computer program when executed by a processor realizing the steps and corresponding contents of the preceding method embodiments.

[0192] The terms "first", "second", "third", "fourth", "1", "2", etc. (if present) in the specification and claims of this application and the accompanying drawings above are used to distinguish similar objects and need not be used to describe a particular order or sequence. It should be understood that the data so used is interchangeable where appropriate so that embodiments of the disclosure described herein can be implemented in an order other than that illustrated or described in the text.

[0193] It should be understood that while the flow diagrams of embodiments of the disclosure indicate the individual operational steps by arrows, the order in which these steps are performed is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of embodiments of the disclosure, the implementation steps in the respective flowcharts may be performed in other orders as desired. In addition, some, or all of the steps in each flowchart may include multiple sub-steps or multiple phases based on the actual implementation scenario. Some or all of these sub-steps or stages can be executed at the same moment, and each of these sub-steps or stages can also be executed at different moments separately. The order of execution of these sub-steps or stages can be flexibly configured according to requirements in different scenarios of execution time, and the embodiments of the disclosure are not limited thereto.

[0194] The above-mentioned description and the drawings are provided merely as examples to help readers to understand the disclosure, and they should not be interpreted or aim to limit the scope of the disclosure in any way. Although some embodiments are provided, it is apparent for those skilled in the art to adopt other similar implementation means based on the technical idea of the disclosure without departing from the technical concept of the solution of the disclosure.

Claims

1.An electronic device in a wireless communication system, the electronic device comprising a first filtering network and a second filtering network:the first filtering network is configured to filter a first radio frequency (RF) signal and transmit the filtered first RF signal to a first module used for receiving signals,wherein an operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, andthe second filtering network is configured to filter a second RF signal and transmit the filtered second RF signal to a second module used for controlling signal reflection,wherein an operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.2.The electronic device of claim 1,wherein the operating frequency band of the first filtering network comprises a frequency division duplex (FDD) downlink frequency band or an FDD uplink frequency band,wherein the operating frequency band of the second filtering network comprises an FDD uplink frequency band,wherein the FDD downlink frequency band or the FDD uplink frequency band included in the operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, andwherein the FDD uplink frequency band included in the operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.3.The electronic device of claim 1,wherein the first filtering network is further configured to transmit the filtered first RF signal to a third module used for converting signals into electric energy, andwherein the second filtering network is further configured to transmit the filtered second RF signal to the third module.4.The electronic device of claim 1,wherein the electronic device further comprises a third filtering network configured to filter a third RF signal and transmit the filtered third RF signal to the third module used for converting signals into electric energy,wherein an operating frequency band of the third filtering network comprises an energy receiving frequency band of the electronic device, andwherein the third RF signal comprises at least one of the first RF signal, the second RF signal and other RF signals.5.The electronic device of claim 4,wherein the operating frequency band of a filtering network connected to the third module comprises at least one of an FDD downlink frequency band, a guard band and an FDD uplink frequency band, andwherein the at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module comprises an energy receiving frequency band of the electronic device.6.The electronic device of claim 1,wherein the first filtering network and the second filtering network are connected in parallel, and a connection relationship between the first filtering network, the second filtering network, and antennas comprises one of following:wherein the first filtering network and the second filtering network are in switchable connection to a same antenna through switch elements, andwherein the first filtering network and the second filtering network are connected to different antennas, respectively.7.The electronic device of claim 4,wherein the first filtering network, the second filtering network and the third filtering network are connected in parallel, and a connection relationship between the first filtering network, the second filtering network, the third filtering network, and antennas comprises one of following:wherein the first filtering network, the second filtering network and the third filtering network are in switchable connection to a same antenna through switch elements,wherein the first filtering network and the second filtering network are in switchable connection to a first antenna through switch elements, and the third filtering network is connected to the first antenna or a second antenna, andwherein the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively.8.The electronic device of claim 1,wherein the first filtering network and the second filtering network are connected in series, and an input end of one filtering network is connected to an antenna,wherein the electronic device further comprises a switch element which is connected in parallel to at least one of the first filtering network and the second filtering network, andwherein an operating frequency band of a filtering network which is not connected in parallel to the switch element further comprises an energy receiving frequency band of the electronic device.9.A method performed by an electronic device in a wireless communication system, the method comprising:by a first filtering network, filtering a first RF signal, and transmitting the filtered first RF signal to a first module used for receiving signals,wherein an operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device; andby a second filtering network, filtering a second RF signal, and transmitting the filtered second RF signal to a third module used for controlling signal reflection,wherein an operating frequency band of the second filtering network comprising a signal transmitting frequency band of the electronic device.10.The method of claim 9,wherein the operating frequency band of the first filtering network comprises a frequency division duplex (FDD) downlink frequency band or an FDD uplink frequency band,wherein the operating frequency band of the second filtering network comprises an FDD uplink frequency band;wherein the FDD downlink frequency band or the FDD uplink frequency band included in the operating frequency band of the first filtering network comprises a signal receiving frequency band of the electronic device, andwherein the FDD uplink frequency band included in the operating frequency band of the second filtering network comprises a signal transmitting frequency band of the electronic device.11.The method of claim 9, further comprising:transmitting, by the first filtering network, the filtered first RF signal to a third module used for converting signals into electric energy; andtransmitting, by the second filtering network, the filtered second RF signal to the third module.12.The method of claim 9, further comprising:by a third filtering network, filtering a third RF signal, and transmitting the filtered third RF signal to the third module used for converting signals into electric energy,wherein an operating frequency band of the third filtering network comprises an energy receiving frequency band of the electronic device, andwherein the third RF signal comprising at least one of the first RF signal, the second RF signal and other RF signals.13.The method of claim 12,wherein the operating frequency band of a filtering network connected to the third module comprises at least one of an FDD downlink frequency band, a guard band and an FDD uplink frequency band, andwherein the at least one of the FDD downlink frequency band, the guard band and the FDD uplink frequency band included in the operating frequency band of the filtering network connected to the third module comprises an energy receiving frequency band of the electronic device.14.The method of claim 9,wherein the first filtering network and the second filtering network are connected in parallel; and a connection relationship between the first filtering network, the second filtering network, and antennas comprises one of following:wherein the first filtering network and the second filtering network are in switchable connected to a same antenna through switch elements; andwherein the first filtering network and the second filtering network are connected to different antennas, respectively.15.The method of claim 12,wherein the first filtering network, the second filtering network and the third filtering network are connected in parallel, and a connection relationship between the first filtering network, the second filtering network, the third filtering network, and antennas comprises one of following:wherein the first filtering network, the second filtering network and the third filtering network are in switchable connection to a same antenna through switch elements;wherein the first filtering network and the second filtering network are in switchable connection to a first antenna through switch elements, and the third filtering network is connected to the first antenna or a second antenna; andwherein the first filtering network, the second filtering network and the third filtering network are connected to different antennas, respectively.

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