Communication method, terminal, network device, system, and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a system, and a storage medium. The method comprises: sending a first configuration parameter to a terminal, the first configuration parameter being used for determining first frequency information of an uplink communication signal; and receiving the uplink communication signal sent by the terminal on the basis of the first frequency information, the uplink communication signal being carried by a backscattered signal corresponding to a CW signal. Thus, the first frequency information of the uplink communication signal sent by the terminal is determined on the basis of the first configuration parameter, and the uplink communication signal is transmitted on the basis of the first frequency information, thereby achieving frequency division multiplexing in a communication transmission process for an Internet of Things device that performs backscattering on the basis of the CW signal.

Description

Communication method, terminal, network device, system and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a terminal, a network device, a system and a storage medium. BACKGROUND

[0002] A-IoT (Artificial Intelligence of Things Device) is a new Internet of Things technology. Compared with related Internet of Things technologies, a significant feature of A-IoT is that a large number of A-IoT terminals (including A-IoT UE (User Equipment), A-IoT device, and A-IoT Tag) can be connected to a network, and the A-IoT terminals have simple structures, low hardware and maintenance costs, and low power consumption, and can be used for a long time without replacing batteries.

[0003] SUMMARY

[0004] To overcome the technical problem of frequency division multiplexing in the communication transmission process in the related art, the present disclosure provides a communication method, a terminal, a network device, a system and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a network device, and the method comprises the following steps.

[0006] sending a first configuration parameter to a terminal, the first configuration parameter being used to determine first frequency information of an uplink communication signal;

[0007] receiving the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal being carried by a backscatter signal corresponding to a CW signal.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a terminal, and the method comprises the following steps.

[0009] receiving a CW signal;

[0010] determining first frequency information of an uplink communication signal according to a first configuration parameter;

[0011] sending the uplink communication signal to a network device according to the first frequency information and the CW signal, the uplink communication signal being carried by a backscatter signal corresponding to the CW signal.

[0012] According to a third aspect of an embodiment of the present disclosure, a network device is provided, comprising:

[0013] a transceiver module, configured to send a first configuration parameter to the terminal, the first configuration parameter being used to determine first frequency information of an uplink communication signal;

[0014] The transceiver module is further configured to receive the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal being carried by a back reflection signal corresponding to the CW signal.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0016] a transceiver module, configured to receive a CW signal;

[0017] a processing module, configured to determine first frequency information of an uplink communication signal according to a first configuration parameter;

[0018] The transceiver module is further configured to send the uplink communication signal to a network device according to the first frequency information and the CW signal, the uplink communication signal being carried by a back reflection signal corresponding to the CW signal.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, comprising:

[0020] one or more processors;

[0021] The processor is configured to perform the communication method in any one of the first aspect of the present disclosure.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0023] one or more processors;

[0024] The processor is configured to perform the communication method in any one of the second aspect of the present disclosure.

[0025] According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method in any one of the first aspect of the present disclosure, and the network device is configured to implement the communication method in any one of the second aspect of the present disclosure.

[0026] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided, the storage medium storing instructions, when the instructions run on a communication device, causing the communication device to perform the communication method in any one of the first aspect of the present disclosure, the second aspect of the present disclosure.

[0027] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided, including a computer program and / or instructions, and the computer program and / or instructions, when executed by a communication device, implement the communication method according to any one of the first aspect of the present disclosure, or the computer program and / or instructions, when executed by a communication device, implement the communication method according to any one of the second aspect of the present disclosure.

[0028] In the above scheme, the first configuration parameter is sent to the terminal, and the first configuration parameter is used to determine the first frequency information of the uplink communication signal. The terminal receives the uplink communication signal sent according to the first frequency information, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal. Thus, the first frequency information of the uplink communication signal sent by the terminal is determined according to the first configuration parameter, and the uplink communication signal is transmitted based on the first frequency information, so that the Internet of Things device based on the CW signal for backscattering is realized, and frequency division multiplexing is realized in the communication transmission process. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0030] FIG. 1A is a schematic architecture diagram of a communication system according to an embodiment of the present disclosure.

[0031] FIG. 1B is a schematic diagram of an A-IoT device topology according to an embodiment of the present disclosure.

[0032] FIG. 2 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present disclosure.

[0033] FIG. 3 is a schematic diagram of a flow of a communication method according to an embodiment of the present disclosure.

[0034] FIG. 4 is a schematic diagram of a flow of a communication method according to an embodiment of the present disclosure.

[0035] FIG. 5A is a schematic diagram of a flow of a communication method according to an embodiment of the present disclosure.

[0036] FIG. 5B is a schematic diagram of a flow of a communication method according to an embodiment of the present disclosure.

[0037] FIG. 6 is a schematic diagram of a structure of a network device according to an embodiment of the present disclosure.

[0038] FIG. 7 is a schematic diagram of a structure of a terminal according to an embodiment of the present disclosure.

[0039] FIG. 8 is a schematic diagram of a structure of a communication device 8100 according to an embodiment of the present disclosure.

[0040] FIG. 9 is a structural schematic diagram of a chip 8200 according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a system and a storage medium.

[0042] In a first aspect, the embodiments of the present disclosure provide a communication method, performed by a network device, comprising:

[0043] sending a first configuration parameter to a terminal, the first configuration parameter being used to determine first frequency information of an uplink communication signal;

[0044] receiving the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal being carried by a backscatter signal corresponding to an electromagnetic wave CW signal.

[0045] In some embodiments of the first aspect, the first configuration parameter comprises at least one of:

[0046] a center frequency of the uplink transmission of the terminal;

[0047] a first frequency offset of the center frequency of the uplink transmission of the terminal relative to a center frequency corresponding to the CW signal;

[0048] an offset coefficient of the uplink transmission of the terminal;

[0049] a bandwidth of the uplink transmission of the terminal;

[0050] an offset spectrum of the uplink communication signal, the offset spectrum being used to indicate a spectrum in which the uplink communication signal is located after frequency offsetting of the uplink communication signal relative to a spectrum in which the CW signal is located;

[0051] a topology of the terminal, the topology being a data transmission mode between the network device and the terminal;

[0052] a frequency offset of a center frequency of the uplink communication signal relative to the offset spectrum.

[0053] In some embodiments of the first aspect, the first frequency offset is greater than a first minimum frequency value, and the first minimum frequency value is at least one of:

[0054] a minimum frequency interval between an uplink spectrum corresponding to the CW signal and a downlink spectrum;

[0055] a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being a highest frequency in the uplink spectrum, and the sixth frequency being a lowest frequency in the downlink spectrum;

[0056] a frequency gap between a seventh frequency and an eighth frequency, the seventh frequency being a highest frequency in the downlink frequency spectrum, the eighth frequency being a highest frequency in the uplink frequency spectrum.

[0057] In some embodiments of the first aspect, the first configuration parameter comprises a first parameter and a second parameter, the first parameter being used to indicate an offset spectrum of the uplink communication signal, and the second parameter being used to indicate a second frequency offset on the offset spectrum.

[0058] In some embodiments of the first aspect, the CW signal is transmitted in a downlink frequency spectrum, and the first parameter is used to indicate an offset of the uplink communication signal from the downlink frequency spectrum to an uplink frequency spectrum.

[0059] In some embodiments of the first aspect, the CW signal is transmitted in an uplink frequency spectrum, and the first parameter is used to indicate an offset of the uplink communication signal from the uplink frequency spectrum to a downlink frequency spectrum.

[0060] In some embodiments of the first aspect, the second frequency offset is a frequency offset of the first frequency information relative to a second frequency, the second frequency being a minimum frequency in the offset spectrum indicated by the first parameter.

[0061] In some embodiments of the first aspect, the second frequency offset is a frequency offset of the first frequency information relative to a third frequency, the third frequency being a maximum frequency in the offset spectrum indicated by the first parameter.

[0062] In some embodiments of the first aspect, the second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, the fourth frequency being a center frequency in the offset spectrum indicated by the first parameter.

[0063] In some embodiments of the first aspect, the transmitting the first configuration parameter to the terminal comprises:

[0064] determining a topology structure in which the terminal is located, the topology structure being a data transmission mode between the network device and the terminal;

[0065] transmitting the first configuration parameter to the terminal according to the topology structure.

[0066] In some embodiments of the first aspect, the transmitting the first configuration parameter to the terminal according to the topology structure comprises:

[0067] determining a first parameter according to the topology structure, the first parameter being used to indicate an offset spectrum of the uplink communication signal;

[0068] generating the first configuration parameter according to the first parameter.

[0069] transmitting the first configuration parameter to the terminal.

[0070] In some embodiments of the first aspect, the first frequency information comprises center frequency information of the uplink communication signal and / or bandwidth information of the uplink transmission of the terminal.

[0071] In a second aspect, the embodiments of the present disclosure provide a communication method, performed by a terminal, the method comprising:

[0072] receiving a CW signal;

[0073] determining first frequency information of an uplink communication signal according to a first configuration parameter;

[0074] transmitting the uplink communication signal to a network device according to the first frequency information and the CW signal, the uplink communication signal being carried by a back reflection signal corresponding to the CW signal.

[0075] In some embodiments of the second aspect, the first configuration parameter comprises at least one of:

[0076] a center frequency of the uplink transmission of the terminal;

[0077] a first frequency offset of the center frequency of the uplink transmission of the terminal relative to a center frequency corresponding to the CW signal;

[0078] an offset coefficient of the uplink transmission of the terminal;

[0079] a bandwidth of the uplink transmission of the terminal;

[0080] an offset spectrum of the uplink communication signal;

[0081] a topology of the terminal, the topology being a data transmission mode between the network device and the terminal;

[0082] a frequency offset of a center frequency of the uplink communication signal relative to the offset spectrum.

[0083] In some embodiments of the second aspect, the first frequency offset is greater than a first minimum frequency value, the first minimum frequency value being at least one of:

[0084] a minimum frequency interval between an uplink spectrum corresponding to the CW signal and a downlink spectrum;

[0085] a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being a highest frequency in the uplink spectrum, and the sixth frequency being a lowest frequency in the downlink spectrum;

[0086] a frequency gap between a seventh frequency and an eighth frequency, the seventh frequency being a highest frequency in the downlink spectrum, the eighth frequency being a highest frequency in the uplink spectrum.

[0087] In some embodiments of the second aspect, the first configuration parameter comprises a first parameter and a second parameter, the first parameter being used to indicate an offset spectrum of the uplink communication signal, the second parameter being used to indicate a second frequency offset on the offset spectrum.

[0088] In some embodiments of the second aspect, the CW signal is transmitted in a downlink spectrum, the first parameter being used to indicate an offset of the uplink communication signal from the downlink spectrum to an uplink spectrum.

[0089] In some embodiments of the second aspect, the CW signal is transmitted in an uplink spectrum, the first parameter being used to indicate an offset of the uplink communication signal from the uplink spectrum to a downlink spectrum.

[0090] In some embodiments of the second aspect, the second frequency offset is a frequency offset of the first frequency information relative to a second frequency, the second frequency being a minimum frequency in the offset spectrum.

[0091] In some embodiments of the second aspect, the second frequency offset is a frequency offset of the first frequency information relative to a third frequency, the third frequency being a maximum frequency in the offset spectrum.

[0092] In some embodiments of the second aspect, the second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, the fourth frequency being a center frequency in the offset spectrum.

[0093] In some embodiments of the second aspect, the method further comprises:

[0094] determining the first configuration parameter according to pre-configuration information of the terminal.

[0095] In some embodiments of the second aspect, the pre-configuration information comprises at least one of:

[0096] a center frequency of the uplink transmission of the terminal;

[0097] a third frequency offset of the center frequency of the uplink transmission of the terminal relative to a corresponding center frequency of the CW signal;

[0098] an offset coefficient of the uplink transmission of the terminal;

[0099] a frequency offset combination of the uplink transmission of the terminal, the frequency offset combination comprising a frequency offset of an uplink spectrum to a downlink spectrum, or a frequency offset of a downlink spectrum to an uplink spectrum;

[0100] a bandwidth of the uplink transmission of the terminal.

[0101] In some embodiments of the second aspect, the first configuration parameter comprises the offset coefficient, and determining the first frequency information of the uplink communication signal according to the first configuration parameter comprises:

[0102] determining a center frequency of the CW signal;

[0103] determining the first frequency information according to the center frequency and the offset coefficient.

[0104] In some embodiments of the second aspect, the first configuration parameter comprises the offset coefficient and the second frequency offset, and determining the first frequency information of the uplink communication signal according to the first configuration parameter comprises:

[0105] determining a center frequency of the CW signal;

[0106] determining the first frequency information according to the center frequency, the offset coefficient and the second frequency offset.

[0107] In some embodiments of the second aspect, the first frequency information comprises center frequency information of the uplink communication signal and / or bandwidth information of the uplink transmission of the terminal.

[0108] In a third aspect, the embodiments of the present disclosure provide a network device, comprising:

[0109] a transceiver configured to send a first configuration parameter to a terminal, the first configuration parameter being used to determine first frequency information of an uplink communication signal;

[0110] the transceiver is further configured to receive the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal being carried by a back reflection signal corresponding to a CW signal.

[0111] In a fourth aspect, the embodiments of the present disclosure provide a terminal, comprising:

[0112] a transceiver configured to receive a CW signal;

[0113] a processing module configured to determine first frequency information of an uplink communication signal according to a first configuration parameter;

[0114] the transceiver is further configured to send the uplink communication signal to a network device according to the first frequency information and the CW signal, the uplink communication signal being carried by a back reflection signal corresponding to the CW signal.

[0115] In a fifth aspect, the embodiments of the present disclosure provide a network device, comprising:

[0116] one or more processors;

[0117] The processor is configured to perform the communication method in any of the first aspect of the present disclosure.

[0118] In a sixth aspect, the embodiments of the present disclosure provide a terminal, comprising:

[0119] one or more processors;

[0120] The processor is configured to perform the communication method in any of the second aspect of the present disclosure.

[0121] In a seventh aspect, the embodiments of the present disclosure provide a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method in any of the first aspect of the present disclosure, and the network device is configured to implement the communication method in any of the second aspect of the present disclosure.

[0122] In an eighth aspect, the embodiments of the present disclosure provide a storage medium, which stores instructions, when the instructions are executed on a communication device, the communication device performs the communication method in any of the first aspect of the present disclosure or the second aspect of the present disclosure.

[0123] In a ninth aspect, the embodiments of the present disclosure provide a computer program product, comprising a computer program and / or instructions, when the computer program and / or instructions are executed on a communication device, the communication method in any of the first aspect of the present disclosure is implemented, or the communication method in any of the second aspect of the present disclosure is implemented.

[0124] In the above manner, the first configuration parameter is sent to the terminal, the first configuration parameter is used to determine the first frequency information of the uplink communication signal, and the terminal receives the uplink communication signal sent according to the first frequency information, and the uplink communication signal is carried by the backscatter signal corresponding to the CW signal. Thus, the first frequency information of the uplink communication signal sent by the terminal is determined according to the first configuration parameter, and the uplink communication signal is transmitted based on the first frequency information, thereby realizing the Internet of Things device based on the CW signal for backscattering and frequency division multiplexing in the communication transmission process.

[0125] It can be understood that the terminal, the network device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are all used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be described here.

[0126] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a system and a storage medium. In some embodiments, the communication method and the information processing method can be replaced with each other, the communication device and the information processing device can be replaced with each other, and the information processing system and the communication system can be replaced with each other.

[0127] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, some or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0128] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0129] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0130] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", or "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, or can be understood as plural expression.

[0131] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0132] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0133] In some embodiments, the description of "at least one of A, B", "A and / or B", "in a case A, in another case B", "in response to a case A, in response to a case B", and the like, can include the following technical solutions according to the case: in some embodiments, A (A is executed regardless of B); in some embodiments, B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selected from A and B); in some embodiments, A and B (A and B are executed). When there are more branches such as A, B, C, and the like, the above is similar.

[0134] In some embodiments, the description of "A or B" and the like can include the following technical solutions according to the case: in some embodiments, A (A is executed regardless of B); in some embodiments, B (B is executed regardless of A); in some embodiments, A and B are selectively executed (A and B are selected from A and B). When there are more branches such as A, B, C, and the like, the above is similar.

[0135] The prefix words "first", "second", and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity, or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not be limited by the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", where the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0136] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0137] In some embodiments, the terms "time / frequency", "time / frequency domain", and the like refer to the time domain and / or the frequency domain.

[0138] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "if", "if", etc. can be replaced with each other.

[0139] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", etc. can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", etc. can be replaced with each other.

[0140] In some embodiments, the device, etc. can be interpreted as an entity, and can also be interpreted as virtual, and the name is not limited to the name described in the embodiments. The terms "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc. can be replaced with each other.

[0141] In some embodiments, "network" can be interpreted as a device (e.g., access network device, core network device, etc.) contained in the network.

[0142] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0143] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0144] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0145] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0146] In some embodiments, the data, information, etc. can be acquired in compliance with the laws and regulations of the country where the location is situated.

[0147] In some embodiments, the data, information, etc. can be acquired after obtaining the consent of the user.

[0148] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0149] FIG. 1A is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0150] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc., but is not limited thereto.

[0151] In some embodiments, the network device 102 is, for example, a node or device that accesses a terminal to a wireless network, and the network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

[0152] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized through software or programs.

[0153] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit (control unit). The CU-DU structure can split the protocol layers of the access network device, and some of the protocol layers are controlled by the CU, and the remaining or all of the protocol layers are distributed in the DU and controlled by the CU, but the present disclosure is not limited thereto.

[0154] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0155] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1, or part of the subjects, but are not limited thereto. The subjects shown in FIG. 1 are illustrative, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than those in FIG. 1. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is illustrative, each subject can not be connected or can be connected, the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0156] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0157] In some embodiments, the A-IoT device can be applied to scenarios of inventory of large-scale items, i.e., the A-IoT device reports an EPC (Electronic Product Code) to a network or an intermediate node, can be applied to smart home, environmental monitoring and other sensor communication scenarios, i.e., meets certain triggering conditions and reports relevant data. Examples can also be applied to positioning scenarios, used for finding items or positioning devices in a shopping mall. It can also be used in device command scenarios to respond to commands sent by network devices.

[0158] In some embodiments, the A-IoT device can include multiple types, (1) the peak power consumption of the A-IoT device is 1 μW, the device has energy storage function, the SFO (Sampling Frequency Offset) of the device is 10 X ppm, the device does not have the amplification function of the DL (Down Link) signal and the UL (Up-Link) signal in the device configuration, and the UL transmission of the device is backscattered by an externally provided carrier. (2) the peak power consumption of the A-IoT device is less than 100 μW, the device has energy storage function, the SFO of the device can reach 10 X ppm, the A-IoT device can amplify the DL signal and / or the UL signal. The UL transmission of the device can be generated internally or backscattered by an externally provided carrier.

[0159] In some embodiments, the A-IoT device can include multiple types, (1) the peak power consumption of the A-IoT device is 1 μW, the device has energy storage function, the device cannot independently generate or amplify the UL signal and / or the DL signal, and the signal transmission is performed by backscattering. The device does not have the ability to amplify the DL signal and / or the UL signal. (2a) the peak power consumption of the A-IoT device is greater than 200 μW, the device has energy storage capability, but cannot independently generate communication signals, and can use backscattering to transmit signals. The A-IoT device can use stored energy to amplify the DL signal and / or the UL signal. (2b) the peak power consumption of the A-IoT device is greater than 200 μW, the device has energy storage capability, and the device can independently generate signals, for example, the A-IoT device has an RF (Radio Frequency) module for actively transmitting communication signals. (2c) the A-IoT device has both the ability to actively transmit communication information and the ability to backscatter.

[0160] For example, the type (1) device and the type (2a) device described above cannot actively send a communication signal due to the working mode of only using backscattering. When the type (1) device and the type (2a) device need to send communication information, another device needs to provide an electromagnetic wave (continuous wave, CW) signal for backscattering, and the type (1) device and the type (2a) device send communication information based on the backscattered signal.

[0161] For example, for an A-IoT device that uses the backscattering mode for signal transmission, the A-IoT device needs a CW node device that provides a continuous electromagnetic wave to provide an electromagnetic wave signal for reflection while the A-IoT device is sending data. Generally, the CW signal provided by the CW node device is constant in amplitude. The CW node device can be a separate node or a network node or an intermediate node that communicates with the A-IoT device. The A-IoT device reflects the received CW signal, loads the signaling or communication information to be transmitted onto the reflected wave, and sends the reflected wave. The reflected wave and the CW signal are the same frequency or have a certain frequency offset. At the same time, the CW signal can also charge the A-IoT device. The type (1) device receives the CW signal, activates the internal receiving processing module to perform signal processing according to the CW signal, and encodes and modulates the signaling and / or communication data that the A-IoT device needs to upload.

[0162] In some embodiments, the A-IoT device includes a network device, a terminal, an intermediate node, an auxiliary node, and the like. The intermediate node can be a relay, an IAB (Integrated Access and Backhaul) node, a relay UE, a repeater, and the like.

[0163] FIG. 1B is a schematic diagram of an A-IoT device topology according to an embodiment of the present disclosure. As shown in FIG. 1B, the communication connection between the A-IoT device and the network device includes two transmission modes. Topology (1): the A-IoT device and the network device directly perform DL transmission and UL transmission, and perform data reception and / or data transmission through DL and / or UL transmission resources. Topology (2): the A-IoT device and the network device indirectly perform DL transmission and / or UL transmission through an intermediate node, and perform data forwarding through the intermediate node. The intermediate node sends the received communication data to the network device or the terminal through UL transmission resources and / or DL transmission resources. For example, the intermediate node includes a repeater, an IAB node, a relay UE, a relay, and the like.

[0164] In some embodiments, in a passive Internet of Things transmission system, the data sending type of the terminal includes: (1) based on the communication needs of the network device, the terminal transmits report data to the network device, for example, the terminal sends inventory data of the terminal to the network device, etc., so that the network device schedules the storage resources in the terminal according to the inventory data. (2) Triggered based on environmental information of the current environment, for example, the terminal detects the external environment currently located, when it is determined that the environmental temperature is higher than the configured threshold, the terminal triggers communication reporting and sends report data to the network device. (3) The terminal reports data based on the period. For example, the terminal receives a periodic reporting request sent by the network device to realize periodic reporting of environmental Internet of Things data; or based on the relevant configuration or protocol in the A-IoT device, the terminal triggers data reporting by itself, thereby realizing periodic reporting of environmental Internet of Things data of the A-IoT device.

[0165] In some embodiments, for the A-IoT devices of type (2a) and type (2b) described above, the power consumption of the A-IoT devices is greater than 200 μW, and the A-IoT device can perform a larger frequency spectrum offset when performing back reflection, that is, a frequency offset of MHz level. At this time, the center frequency of the uplink transmission of the A-IoT device and the center frequency of the CW signal providing back reflection are located on different frequency spectrums, for example, the CW signal is transmitted on the UL spectrum corresponding to the UL transmission, and the A-IoT device shifts the uplink transmission to the DL spectrum corresponding to the DL transmission when back reflecting. For the transmission of the Internet of Things signal with large frequency offset, the signal sending mode of the A-IoT device needs to be set, so as to realize FDM (Frequency Division Multiplexing) of the A-IoT device.

[0166] FIG. 2 is an interaction flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2, the present embodiment of the present disclosure relates to a communication method, and the method includes:

[0167] In step S2101, the network device sends the first configuration parameter to the terminal.

[0168] In some embodiments, the first configuration parameter is used to determine the first frequency information of the uplink communication signal.

[0169] The network device can identify the terminal, and determine the first configuration parameter based on the type of the terminal. The terminal can determine the transmission frequency of the uplink communication signal according to the received first configuration parameter when transmitting the uplink communication signal. For example, when the network device determines that the current communication terminal is the A-IoT device of type (2a) in the above embodiment, it is determined that the A-IoT device can perform a large frequency offset when performing back reflection, and the first configuration parameter is configured for the A-IoT device to adapt to the back reflection of the A-IoT device. Thus, the A-IoT device determines the transmission frequency of the uplink communication signal through the first configuration parameter when performing back reflection, and realizes frequency division multiplexing of the A-IoT device when performing a large frequency offset.

[0170] In some embodiments, the name of the first configuration parameter is not limited, for example, "frequency configuration parameter", "uplink frequency information", "center frequency information", "frequency offset parameter", etc.

[0171] In some embodiments, the first configuration parameter includes at least one of the following:

[0172] The center frequency of the uplink transmission of the terminal;

[0173] The first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency of the CW signal;

[0174] The offset coefficient of the uplink transmission of the terminal;

[0175] The bandwidth of the uplink transmission of the terminal;

[0176] The offset spectrum of the uplink communication signal, which is used to indicate the frequency spectrum where the uplink communication signal is located after the uplink communication signal is frequency offset relative to the frequency spectrum where the CW signal is located;

[0177] The topology of the terminal, which is the data transmission mode between the network device and the terminal;

[0178] The frequency offset of the center frequency of the uplink communication signal relative to the offset spectrum.

[0179] For example, the terminal in the embodiment can determine the first frequency information of the current uplink communication signal according to the first configuration parameter sent by the network device. The first configuration parameter can include at least one of the following:

[0180] (1) The center frequency of the uplink transmission of the terminal. For example, the network device directly indicates the center frequency of the uplink communication signal when the terminal performs uplink transmission through the first configuration parameter.

[0181] (2) the first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency of the CW signal, for example, the network device sends the first frequency offset to the terminal, and the terminal determines the center frequency of the uplink communication signal according to the first frequency offset and the center frequency of the CW signal, wherein the first frequency offset is the frequency offset value of the center frequency of the uplink transmission of the terminal relative to the center frequency of the CW signal.

[0182] (3) the offset coefficient of the uplink transmission of the terminal, for example, the terminal can determine the center frequency of the uplink communication signal based on the offset coefficient sent by the network device. For example, the terminal determines that the center frequency of the received CW signal is fc, and the offset coefficient sent by the network device is k, then the center frequency of the uplink communication signal is fc×k.

[0183] (4) the bandwidth of the uplink transmission of the terminal, for example, the network device determines the uplink transmission bandwidth suitable for the terminal according to the device type information of the terminal, and sends it to the terminal, and the terminal determines any frequency in the bandwidth as the first frequency information of the uplink communication signal.

[0184] (5) the offset spectrum of the uplink communication signal, for example, the offset spectrum is used to indicate the spectrum of the uplink communication signal after the frequency offset of the uplink communication signal relative to the spectrum of the CW signal. That is, when the terminal determines the reference spectrum of the uplink communication signal based on the offset spectrum, the frequency offset of the reference spectrum of the uplink communication signal relative to the spectrum of the CW signal occurs, and based on the spectrum of the CW signal and the offset spectrum, the terminal determines the spectrum range of the uplink communication signal when the terminal performs uplink transmission, and the terminal can take any frequency in the spectrum range as the first frequency information of the uplink communication signal. For example, when the energy node sends the CW signal, it is fixed on the DL spectrum, and according to the offset spectrum, the frequency offset combination of the terminal is from the DL spectrum-UL spectrum, and when the terminal performs back reflection, the frequency offset of the DL spectrum-UL spectrum is performed, that is, the uplink transmission in the terminal is performed on the UL, and the center frequency of the uplink transmission is located on the UL spectrum. When the energy node sends the CW signal, it is fixed on the UL spectrum, and according to the offset spectrum, the frequency offset combination of the terminal is from the UL spectrum-DL spectrum, and when the terminal performs back reflection, the frequency offset of the UL spectrum-DL spectrum is performed, that is, the uplink transmission is performed on the DL spectrum, and the center frequency of the uplink transmission is located on the DL spectrum.

[0185] (6) the topology of the terminal, for example, the topology of the terminal is the data transmission mode between the network device and the terminal. In this embodiment, the topology includes: topology 1, the terminal and the network device directly communicate data; topology 2, the terminal and the network device communicate data based on an intermediate node, the network device sends transmission data to the intermediate node, and the intermediate node forwards the transmission data to the terminal, or the terminal sends the report data to the intermediate node, and the intermediate node forwards the report data to the network device.

[0186] It should be noted that the terminal is configured with a one-to-one correspondence relationship between the plurality of topological structures and the plurality of frequency information, the network device detects the topological structure of the terminal, determines the topological structure of the current communication terminal, and sends the topological structure to the terminal through the first configuration parameter. The terminal determines the first frequency information corresponding to the current topological structure based on the correspondence relationship, and reports the uplink communication signal based on the first frequency information.

[0187] (7) The frequency offset of the center frequency of the uplink communication signal relative to the offset spectrum. For example, in the embodiment, the offset spectrum and the frequency offset are included in the first configuration parameter. The frequency range in which the uplink communication signal is located is determined based on the offset spectrum, and the frequency position of the center frequency of the uplink communication signal in the frequency range is determined based on the frequency offset, so as to determine the center frequency of the uplink communication signal. For example, it is determined that the offset spectrum of the uplink communication signal is 890MHz-915MHz, the frequency offset is used to indicate the frequency offset of the center frequency of the uplink communication signal relative to the minimum frequency in the offset spectrum, and the frequency offset is 10MHz. Then, the terminal determines that the center frequency of the uplink communication signal is 900MHz according to the offset spectrum and the frequency offset.

[0188] In the above manner, the terminal determines the center frequency of the uplink communication signal according to the first configuration parameter configured by the network device. Thus, the terminal can realize frequency division multiplexing based on the first configuration parameter.

[0189] Optionally, in some embodiments, the first frequency offset is greater than a first minimum frequency value, and the first minimum frequency value is at least one of:

[0190] The minimum frequency interval between the uplink spectrum and the downlink spectrum corresponding to the CW signal;

[0191] The frequency interval between the fifth frequency and the sixth frequency, the fifth frequency being the highest frequency in the uplink spectrum, and the sixth frequency being the lowest frequency in the downlink spectrum;

[0192] The frequency interval between the seventh frequency and the eighth frequency, the seventh frequency being the highest frequency in the downlink spectrum, and the eighth frequency being the highest frequency in the uplink spectrum.

[0193] For example, in the embodiment, the configuration parameter can be configured in a pre-defined, pre-configured, or dynamically indicated manner. Wherein, the offset value offset is in MHz, and the offset value is greater than 1 minimum interval, and the minimum interval is the minimum frequency interval between the DL spectrum and the UL frequency offset. For example, the minimum interval can be the frequency interval between the highest frequency in the UL spectrum and the lowest frequency in the DL spectrum, or the minimum interval can be the frequency interval between the highest frequency in the DL spectrum and the lowest frequency in the UL spectrum.

[0194] In some embodiments, when the configuration parameter includes an offset coefficient, the center frequency of the CW signal is fc, and the offset coefficient is K, the terminal determines the center frequency of the uplink transmission as fc*K, and the offset coefficient K can make the center frequency of the uplink transmission of the terminal and the center frequency of the CW signal located on different spectrums, so that the terminal can perform a large frequency offset.

[0195] In some embodiments, the configuration parameter can include an offset coefficient K and an offset value offset, and the center frequency of the CW signal is fc, and the terminal determines the center frequency of the uplink transmission as fc*K+offset or fc*K-offset, and in this embodiment, the offset direction of the corresponding center frequency of the uplink transmission of the terminal can be determined based on the positive and negative signs of the offset value. By the offset coefficient K and the offset value offset, the center frequency of the uplink transmission of the terminal and the center frequency of the CW signal are located on different spectrums, so that the terminal can perform a large frequency offset.

[0196] In some embodiments, the network device sends different configuration parameters for different terminals, so that there is a guard interval between the uplink transmissions of different types of terminals, thereby ensuring the FDM of the uplink transmission.

[0197] Optionally, in some embodiments, the method further includes:

[0198] The terminal determines the first configuration parameter according to the pre-configuration information.

[0199] For example, in this embodiment, the first configuration parameter is determined by the pre-configuration information set by the terminal, and the pre-configuration information can be factory configuration information, protocol configuration information, etc. of the terminal. When the terminal is in a working mode, the first configuration parameter is determined according to the pre-configuration information when the terminal receives the CW signal, and the first frequency information of the uplink transmission of the terminal is determined according to the first configuration parameter.

[0200] Optionally, in some embodiments, the pre-configuration information includes at least one of the following:

[0201] The center frequency of the uplink transmission of the terminal;

[0202] The third frequency offset of the center frequency of the uplink transmission of the terminal relative to the corresponding center frequency of the CW signal;

[0203] The offset coefficient of the uplink transmission of the terminal;

[0204] The frequency offset combination of the uplink transmission of the terminal, the frequency offset combination including the frequency offset from the uplink spectrum to the downlink spectrum, or the frequency offset from the downlink spectrum to the uplink spectrum;

[0205] The bandwidth of the uplink transmission of the terminal.

[0206] In an example, the terminal determines the first frequency information of the uplink communication signal according to preconfigured information. The preconfigured information includes at least one of the following:

[0207] (1) a center frequency of the uplink transmission of the terminal. In an example, the terminal is preconfigured with preconfigured information, which is used to indicate the center frequency of the uplink transmission of the terminal. When the terminal performs back reflection based on the CW signal, the terminal transmits the uplink communication signal based on the center frequency.

[0208] (2) a third frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency corresponding to the CW signal. In an example, the preconfigured information includes the third frequency offset. The terminal determines the center frequency of the uplink communication signal based on the center frequency of the CW signal and the third frequency offset.

[0209] (3) an offset coefficient of the uplink transmission of the terminal. In an example, after the terminal receives the CW signal, the terminal determines the center frequency of the CW signal, multiplies the center frequency by the offset coefficient, and thereby obtains the center frequency of the uplink communication signal.

[0210] (4) a frequency offset combination of the uplink transmission of the terminal. The frequency offset combination is from the uplink spectrum to the downlink spectrum, that is, the terminal performs frequency offset from the UL spectrum to the DL spectrum. The uplink transmission is performed on the DL, and the center frequency of the uplink communication signal is located on the DL. The frequency offset combination is from the downlink spectrum to the uplink spectrum, that is, the terminal performs frequency offset from the DL spectrum to the UL spectrum. The uplink transmission is performed on the UL, and the center frequency of the uplink communication signal is located on the UL.

[0211] (5) a bandwidth of the uplink transmission of the terminal. In an example, the terminal determines the frequency range of the uplink communication signal according to the preconfigured parameter, and determines any frequency in the frequency spectrum range as the transmission frequency of the uplink communication signal.

[0212] In an example, the preconfigured information can include multiple information described above. For example, the preconfigured information includes an offset coefficient f1 and a third frequency offset offset1. The terminal receives a CW signal with a center frequency fc. The terminal determines the center frequency of the uplink communication signal as f1 x fc + offset1 according to the preconfigured parameter.

[0213] Optionally, in some embodiments, the first configuration parameter includes a first parameter and a second parameter.

[0214] In an example, the network device indicates the first configuration parameter to the terminal in a two-level joint manner of the first parameter and the second parameter. The terminal determines the first frequency information of the uplink communication signal according to the first parameter and the second parameter in the first configuration parameter.

[0215] In some embodiments, the first parameter is used to indicate an offset spectrum of the uplink communication signal, and the second parameter is used to indicate a second frequency offset on the offset spectrum.

[0216] In some embodiments, the terminal can determine, according to the first parameter, an offset spectrum of a frequency corresponding to the uplink communication signal, and determine, according to the second parameter, a frequency offset of the frequency corresponding to the uplink communication signal on the offset spectrum, and the terminal can determine the first frequency information of the uplink communication signal based on the first parameter and the second parameter.

[0217] In step S2102, the terminal receives the CW signal.

[0218] In some embodiments, the terminal is an A-IoT device, which performs uplink transmission according to the CW signal transmitted by the energy source node. The energy source node transmits continuous CW signals to the terminal, and the CW signals provide electromagnetic waves for the A-IoT device to reflect. The energy source node can be the network device in the above embodiments, or an intermediate node device connected to the A-IoT device in communication. The A-IoT device reflects the received CW signal, loads signaling information and / or communication data to be transmitted onto the reflected wave corresponding to the CW signal, and transmits the signaling information and / or communication data to the network device through the reflected wave.

[0219] In some embodiments, the terminal is an A-IoT device, which has a peak power consumption greater than 200 μW and has energy storage capability. When the A-IoT device receives the CW signal transmitted by the energy source node and determines that the current data reporting condition is met, the A-IoT device transmits the uplink communication signal to be transmitted at present through the back reflection signal of the CW signal to the network device. The uplink communication signal includes uplink transmission signaling, uplink transmission data, uplink transmission report, etc.

[0220] Optionally, in some embodiments, the CW signal is transmitted in a downlink spectrum, and the first parameter is used to indicate an offset of the uplink communication signal from the downlink spectrum to an uplink spectrum.

[0221] It should be noted that the reference spectrum of the CW signal transmission frequency is different in different network communication environments. For example, the CW signal is transmitted in a downlink spectrum, i.e., the reference spectrum of the CW signal transmission frequency is the downlink spectrum; the CW signal is transmitted in an uplink spectrum, i.e., the reference spectrum of the CW signal transmission frequency is the uplink spectrum.

[0222] For example, the CW signal received by the terminal is transmitted in the downlink spectrum, i.e., the frequency range corresponding to the CW signal in the embodiment is the downlink spectrum, the first parameter is used to indicate the reference spectrum of the transmission spectrum corresponding to the uplink communication signal, and the uplink communication signal is offset from the downlink spectrum to the uplink spectrum, i.e., the frequency range of the transmission frequency corresponding to the uplink communication signal is the uplink spectrum, and based on the first parameter, the terminal selects any frequency in the uplink spectrum corresponding to the CW signal as the transmission frequency of the uplink communication signal.

[0223] For example, the energy node is fixed in DL (Down Link, downlink) transmission when transmitting the CW signal, and the frequency offset combination determined according to the first parameter is from the combination of DL-UL (Up-Link, uplink), and when the terminal backscatters to transmit the uplink communication signal, the frequency offset of DL-UL is performed, i.e., the uplink transmission of the terminal is performed on UL, and the center frequency of the uplink transmission is located on the UL spectrum.

[0224] Optionally, in some embodiments, the CW signal is transmitted in the uplink spectrum, and the first parameter is used to indicate that the uplink communication signal is offset from the uplink spectrum to the downlink spectrum.

[0225] For example, the CW signal received by the terminal is transmitted in the downlink spectrum, i.e., the frequency range corresponding to the CW signal in the embodiment is the downlink spectrum, the first parameter is used to indicate the reference spectrum of the transmission spectrum corresponding to the uplink communication signal, and the uplink communication signal is offset from the downlink spectrum to the uplink spectrum, i.e., the frequency range of the transmission frequency corresponding to the uplink communication signal is the uplink spectrum, and based on the first parameter, the terminal selects any frequency in the uplink spectrum corresponding to the CW signal as the transmission frequency of the uplink communication signal.

[0226] For example, the energy node is fixed in UL transmission when transmitting the CW signal, and the frequency offset combination determined according to the first parameter is from the combination of UL-DL, and when the terminal backscatters to transmit the uplink communication signal, the frequency offset of UL-DL is performed, i.e., the uplink transmission of the terminal is performed on DL, and the center frequency of the uplink transmission is located on the DL spectrum.

[0227] Optionally, in some embodiments, the second frequency offset is the frequency offset of the first frequency information relative to the second frequency, and the second frequency is the minimum frequency in the offset spectrum indicated by the first parameter.

[0228] In an example, the second frequency offset is a frequency offset of the uplink communication signal in the offset frequency spectrum. In an example, the second frequency offset is a frequency offset of the first frequency relative to a second frequency, and the second frequency is a minimum frequency in the offset frequency spectrum indicated by the first parameter. For example, the offset frequency spectrum indicated by the first parameter is 912-931 MHz, and the second frequency is 5 MHz, and the transmission frequency of the uplink communication signal is determined according to the first parameter and the second parameter as 917 MHz.

[0229] Optionally, in some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a third frequency, and the third frequency is a maximum frequency in the offset frequency spectrum indicated by the first parameter.

[0230] In an example, the second frequency offset is a frequency offset of the first frequency relative to a maximum frequency in the offset frequency spectrum. For example, the offset frequency spectrum indicated by the first parameter is 912-931 MHz, and the second frequency is 5 MHz, and the transmission frequency of the uplink communication signal is determined according to the first parameter and the second parameter as 926 MHz.

[0231] Optionally, in some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, and the fourth frequency is a center frequency in the offset frequency spectrum indicated by the first parameter.

[0232] In an example, the second frequency offset is a frequency offset of the first frequency relative to a center frequency in the offset frequency spectrum. For example, the offset frequency spectrum indicated by the first parameter is 912-932 MHz, and the second frequency is +5 MHz, and the center frequency of the offset frequency spectrum is determined as 922 MHz, and the transmission frequency of the uplink communication signal is determined according to the first parameter and the second parameter as 927 MHz.

[0233] Optionally, in some embodiments, the step S2102 comprises:

[0234] The network device determines a topology structure in which the terminal is located, and the topology structure is a data transmission mode between the network device and the terminal.

[0235] The network device sends the first configuration parameter to the terminal according to the topology structure.

[0236] In an example, the network device determines the topology structure in which the terminal is located according to a communication environment and communication information between the network device and the terminal. In this embodiment, the topology structure type between the network device and the terminal is the same as that in the above-mentioned embodiments, and can be referred to the above-mentioned embodiments, which will not be described herein. The network device is configured with a mapping relationship, and the mapping relationship includes a one-to-one correspondence relationship between a plurality of topology structures and a plurality of configuration parameters. The network device determines the first configuration parameter matched with the current topology structure from the mapping relationship, and sends the first configuration parameter to the terminal.

[0237] For example, the network device determines the terminal is in the topology structure 2 when the RSSI (Received Signal Strength Indication) measurement value of the communication signal transmitted by the terminal is less than the RSSI threshold value, and the corresponding spectrum combination of the topology structure 2 is that the terminal shifts from the UL spectrum to the DL spectrum; the network device determines the terminal is in the topology structure 1 when the RSSI measurement value is greater than or equal to the RSSI threshold value, and the corresponding spectrum combination of the topology structure 1 is that the terminal shifts from the DL spectrum to the UL spectrum.

[0238] Optionally, in some embodiments, the step "the network device sends the first configuration parameter to the terminal according to the topology structure" includes:

[0239] The network device determines the first parameter according to the topology structure, and the first parameter is used to indicate the shifted spectrum of the uplink communication signal.

[0240] The network device generates the first configuration parameter according to the first parameter.

[0241] The network device sends the first configuration parameter to the terminal.

[0242] For example, the network device determines the topology structure in which the terminal is located, determines the corresponding relationship between the topology structure and the first parameter according to the protocol definition, determines the first parameter corresponding to the topology structure according to the corresponding relationship, and generates the first configuration parameter based on the first parameter and sends the first configuration parameter to the terminal. In this embodiment, the network device determines the frequency offset combination currently adapted by the terminal based on the topology structure, and generates the first configuration parameter based on the frequency offset combination.

[0243] In step S2103, the terminal determines the first frequency information of the uplink communication signal according to the first configuration parameter.

[0244] In some embodiments, the first frequency information includes the center frequency information of the uplink communication signal and / or the bandwidth information of the uplink transmission of the terminal.

[0245] For example, the first frequency information is the center frequency information of the uplink communication signal and / or the bandwidth information of the uplink transmission of the terminal, and the terminal can select any frequency in the bandwidth information as the transmission frequency of the uplink communication signal when performing uplink transmission.

[0246] In step S2104, the terminal sends the uplink communication signal to the network device according to the first frequency information and the CW signal.

[0247] In some embodiments, the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0248] For example, after the first frequency information of the uplink communication signal is determined, the uplink communication signal is transmitted based on the first frequency information. In this embodiment, the terminal reflects the received CW signal, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0249] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0250] In some embodiments, the terms of "codebook", "codeword", and "precoding matrix" can be replaced with each other. For example, the codebook can be a collection of one or more codewords / precoding matrices.

[0251] In some embodiments, the terms of "uplink", "uplink", "physical uplink", and the like can be replaced with each other, the terms of "downlink", "downlink", "physical downlink", and the like can be replaced with each other, and the terms of "side", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct connection link", "direct connection", "direct connection link communication", and the like can be replaced with each other.

[0252] In some embodiments, the terms of "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0253] In some embodiments, the terms “physical downlink shared channel (PDSCH),” “DL data,” and the like can be replaced with each other, and the terms “physical uplink shared channel (PUSCH),” “UL data,” and the like can be replaced with each other.

[0254] In some embodiments, the terms “radio,” “wireless,” “radio access network (RAN),” “access network (AN),” “RAN-based,” and the like can be replaced with each other.

[0255] In some embodiments, the terms “search space,” “search space set,” “search space configuration,” “search space set configuration,” “control resource set (CORESET),” “CORESET configuration,” and the like can be replaced with each other.

[0256] In some embodiments, the terms “synchronization signal (SS),” “synchronization signal block (SSB),” “reference signal (RS),” “pilot,” “pilot signal,” and the like can be replaced with each other.

[0257] In some embodiments, the terms “time instant,” “time point,” “time,” “time location,” and the like can be replaced with each other, and the terms “time duration,” “time period,” “time window,” “window,” “time,” and the like can be replaced with each other.

[0258] In some embodiments, the terms “component carrier (CC),” “cell,” “frequency carrier,” “carrier frequency,” and the like can be replaced with each other.

[0259] In some embodiments, the terms “resource block (RB),” “physical resource block (PRB),” “sub-carrier group (SCG),” “resource element group (REG),” “PRB pair,” “RB pair,” “resource element (RE),” “sub-carrier,” and the like can be replaced with each other.

[0260] In some embodiments, the terms “wireless access scheme,” “waveform,” and the like can be replaced with each other.

[0261] In some embodiments, the terms “precoding,” “precoder,” “weight,” “precoding weight,” “quasi-co-location (QCL),” “transmission configuration indication (TCI) state,” “spatial relation,” “spatial domain filter,” “transmission power,” “phase rotation,” “antenna port,” “antenna port group,” “layer,” “the number of layers,” “rank,” “resource,” “resource set,” “resource group,” “beam,” “beam width,” “beam angular degree,” “antenna,” “antenna element,” “panel,” and the like can be replaced with each other.

[0262] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, “transmission time interval (TTI)”, and the like can be replaced with each other.

[0263] In some embodiments, the terms “acquire”, “obtain”, “get”, “receive”, “transmit”, “bidirectional transmission”, “send and / or receive”, and the like can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, obtaining from higher layers, obtaining by self-processing, implementing autonomously, and the like.

[0264] In some embodiments, the terms “send”, “transmit”, “report”, “issue”, “transmit”, “bidirectional transmission”, “send and / or receive”, and the like can be replaced with each other.

[0265] In some embodiments, the terms “certain”, “preseted”, “preset”, “set”, “indicated”, “certain”, “arbitrary”, “first”, and the like can be replaced with each other, and “certain A”, “preset A”, “preset A”, “set A”, “indicated A”, “certain A”, “arbitrary A”, “first A” can be interpreted as A specified in advance in protocols and the like, or A obtained by setting, configuring, or indicating, or A as certain A, certain A, arbitrary A, or first A, but not limited thereto.

[0266] In some embodiments, determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but not limited thereto.

[0267] In some embodiments, “not expecting to receive” can be interpreted as not receiving in time domain resources and / or frequency domain resources, or can be interpreted as not performing subsequent processing on the data and the like after receiving the data and the like; “not expecting to send” can be interpreted as not sending, or can be interpreted as sending but not expecting the receiving party to respond to the content of the sending.

[0268] By the above manner, the network device sends the first configuration parameter to the terminal, the first configuration parameter is used for determining the first frequency information of the uplink communication signal, and the network device receives the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal is borne by the back reflection signal corresponding to the CW signal. Thus, the first frequency information of the uplink communication signal sent by the terminal is determined according to the first configuration parameter, and the uplink communication signal is transmitted based on the first frequency information, so that the Internet of Things device based on the CW signal for backscattering is realized, and frequency division multiplexing in the communication transmission process is realized.

[0269] FIG. 3 is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3, the embodiment of the present disclosure relates to a communication method, which is performed by a network device, and the above method comprises:

[0270] Step S3101, sending a first configuration parameter to a terminal.

[0271] In some embodiments, the first configuration parameter is used for determining first frequency information of the uplink communication signal.

[0272] In some embodiments, the first configuration parameter comprises at least one of the following:

[0273] a center frequency of the uplink transmission of the terminal;

[0274] a first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency corresponding to the CW signal;

[0275] an offset coefficient of the uplink transmission of the terminal;

[0276] a bandwidth of the uplink transmission of the terminal;

[0277] an offset spectrum of the uplink communication signal, the offset spectrum being used for indicating a spectrum where the uplink communication signal is located after frequency offsetting of the uplink communication signal relative to a spectrum where the CW signal is located;

[0278] a topology structure of the terminal, the topology structure being a data transmission mode between the network device and the terminal;

[0279] a frequency offset of the center frequency of the uplink communication signal relative to the offset spectrum.

[0280] In some embodiments, the first frequency offset is greater than a first minimum frequency value, and the first minimum frequency value is at least one of the following:

[0281] a minimum frequency interval between an uplink spectrum corresponding to the CW signal and a downlink spectrum;

[0282] a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being a highest frequency in the uplink spectrum, and the sixth frequency being a lowest frequency in the downlink spectrum;

[0283] a frequency gap between a seventh frequency and an eighth frequency, the seventh frequency being a highest frequency in the downlink frequency spectrum, and the eighth frequency being a highest frequency in the uplink frequency spectrum.

[0284] In some embodiments, the first configuration parameter comprises a first parameter and a second parameter, the first parameter being used to indicate an offset spectrum of the uplink communication signal, and the second parameter being used to indicate a second frequency offset on the offset spectrum.

[0285] In some embodiments, the CW signal is transmitted in the downlink frequency spectrum, and the first parameter is used to indicate an offset of the uplink communication signal from the downlink frequency spectrum to the uplink frequency spectrum.

[0286] In some embodiments, the CW signal is transmitted in the uplink frequency spectrum, and the first parameter is used to indicate an offset of the uplink communication signal from the uplink frequency spectrum to the downlink frequency spectrum.

[0287] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a second frequency, the second frequency being a minimum frequency in the offset spectrum indicated by the first parameter.

[0288] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a third frequency, the third frequency being a maximum frequency in the offset spectrum indicated by the first parameter.

[0289] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, the fourth frequency being a center frequency in the offset spectrum indicated by the first parameter.

[0290] Optionally, in some embodiments, the step S3101 comprises:

[0291] determining a topology structure in which the terminal is located, the topology structure being a data transmission manner between the network device and the terminal;

[0292] sending the first configuration parameter to the terminal according to the topology structure.

[0293] Optionally, in some embodiments, the step of “sending the first configuration parameter to the terminal according to the topology structure” comprises:

[0294] determining the first parameter according to the topology structure, the first parameter being used to indicate an offset spectrum of the uplink communication signal;

[0295] generating the first configuration parameter according to the first parameter;

[0296] sending the first configuration parameter to the terminal.

[0297] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0298] In step S3102, the receiving terminal receives the uplink communication signal sent by the terminal according to the first frequency information, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0299] In some embodiments, the first frequency information includes center frequency information of the uplink communication signal and / or bandwidth information of the uplink transmission of the terminal.

[0300] The optional implementation of step S3102 can refer to the optional implementation of step S2104 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0301] In the above manner, the network device sends the first configuration parameter to the terminal, the first configuration parameter is used to determine the first frequency information of the uplink communication signal, and the network device receives the uplink communication signal sent by the terminal according to the first frequency information, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal. Thus, the first frequency information of the uplink communication signal sent by the terminal is determined according to the first configuration parameter, and the uplink communication signal is transmitted based on the first frequency information, thereby realizing the Internet of Things device based on the CW signal for backscattering and frequency division multiplexing in the communication transmission process.

[0302] FIG. 4 is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4, the embodiment of the present disclosure relates to a communication method performed by a terminal, and the above method includes:

[0303] In step S4101, a CW signal is received.

[0304] In an example, the terminal in the embodiment is an A-IoT device, which performs uplink transmission according to the CW signal transmitted by an energy source node. The energy source node transmits continuous CW signals to the terminal, and the CW signals provide electromagnetic waves for the A-IoT device to reflect. The energy source node can be the network device in the above embodiments, or can be an intermediate node device in communication connection with the A-IoT device. The A-IoT device reflects the received CW signal, loads signaling information and / or communication data to be transmitted onto the reflected wave corresponding to the CW signal, and transmits the signaling information and / or communication data to the network device through the reflected wave.

[0305] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0306] In step S4102, the first frequency information of the uplink communication signal is determined according to the first configuration parameter.

[0307] In some embodiments, the first configuration parameter comprises at least one of:

[0308] a center frequency of the uplink transmission of the terminal;

[0309] a first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency of the CW signal;

[0310] an offset coefficient of the uplink transmission of the terminal;

[0311] a bandwidth of the uplink transmission of the terminal;

[0312] an offset spectrum of the uplink communication signal;

[0313] a topology of the terminal, the topology being a data transmission mode between the network device and the terminal;

[0314] a frequency offset of the center frequency of the uplink communication signal relative to the offset spectrum.

[0315] Optionally, in some embodiments, the first frequency offset is greater than a first minimum frequency value, the first minimum frequency value being at least one of:

[0316] a minimum frequency interval between the uplink spectrum and the downlink spectrum corresponding to the CW signal;

[0317] a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being a highest frequency in the uplink spectrum, and the sixth frequency being a lowest frequency in the downlink spectrum;

[0318] a frequency interval between a seventh frequency and an eighth frequency, the seventh frequency being a highest frequency in the downlink spectrum, and the eighth frequency being a highest frequency in the uplink spectrum.

[0319] Optionally, in some embodiments, the first configuration parameter comprises the offset coefficient, and the step S4102 comprises:

[0320] determining the center frequency of the CW signal;

[0321] determining the first frequency information according to the center frequency and the offset coefficient.

[0322] Optionally, in some embodiments, the first configuration parameter comprises the offset coefficient and a second frequency offset, and the determining the first frequency information of the uplink communication signal according to the first configuration parameter comprises:

[0323] determining the center frequency of the CW signal;

[0324] The first frequency information is determined according to the center frequency, the offset coefficient, and the second frequency offset.

[0325] In some embodiments, the first configuration parameter includes a first parameter and a second parameter, the first parameter is used to indicate an offset spectrum of the uplink communication signal, and the second parameter is used to indicate the second frequency offset on the offset spectrum.

[0326] In some embodiments, the CW signal is sent in a downlink spectrum, and the first parameter is used to indicate that the uplink communication signal is offset from the downlink spectrum to an uplink spectrum.

[0327] In some embodiments, the CW signal is sent in an uplink spectrum, and the first parameter is used to indicate that the uplink communication signal is offset from the uplink spectrum to a downlink spectrum.

[0328] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a second frequency, and the second frequency is a minimum frequency in the offset spectrum.

[0329] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a third frequency, and the third frequency is a maximum frequency in the offset spectrum.

[0330] In some embodiments, the second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, and the fourth frequency is a center frequency in the offset spectrum.

[0331] In some embodiments, the first frequency information includes center frequency information of the uplink communication signal and / or bandwidth information of the uplink transmission of the terminal.

[0332] Optionally, in some embodiments, the method further includes:

[0333] The first configuration parameter is determined according to preconfigured information of the terminal.

[0334] For example, in the present embodiment, the first configuration parameter is determined by the preconfigured information of the terminal, which can be factory configuration information, protocol configuration information, etc. of the terminal. When the terminal is in a working mode, the first configuration parameter is determined according to the preconfigured information when the terminal receives the CW signal. According to the first configuration parameter, the first frequency information of the uplink transmission of the terminal is determined.

[0335] Optionally, in some embodiments, the preconfigured information includes at least one of the following:

[0336] A center frequency of the uplink transmission of the terminal;

[0337] A third frequency offset of the center frequency of the uplink transmission of the terminal relative to a corresponding center frequency of the CW signal;

[0338] An offset coefficient of the uplink transmission of the terminal;

[0339] a frequency offset combination of the terminal uplink transmission, the frequency offset combination including a frequency offset from uplink spectrum to downlink spectrum, or a frequency offset from downlink spectrum to uplink spectrum;

[0340] a bandwidth of the terminal uplink transmission.

[0341] In an example, the terminal determines the first frequency information of the uplink communication signal according to preconfigured information. The preconfigured information includes at least one of the following:

[0342] (1) a center frequency of the terminal uplink transmission, in an example, the terminal is preconfigured with preconfigured information, the preconfigured information being used to indicate the center frequency of the terminal uplink transmission, and the terminal transmits the uplink communication signal based on the center frequency when performing back reflection based on the CW signal.

[0343] (2) a third frequency offset of the center frequency of the terminal uplink transmission relative to the center frequency corresponding to the CW signal, in an example, the preconfigured information includes the third frequency offset, and the terminal determines the center frequency of the uplink communication signal based on the center frequency of the CW signal and the third frequency offset.

[0344] (3) an offset coefficient of the terminal uplink transmission, in an example, after the terminal receives the CW signal, the terminal determines the center frequency of the CW signal, multiplies the center frequency by the offset coefficient, and thereby obtains the center frequency of the uplink communication signal.

[0345] (4) a frequency offset combination of the terminal uplink transmission, the frequency offset combination being a frequency offset from uplink spectrum to downlink spectrum, that is, the terminal performs frequency offset from UL spectrum to DL spectrum, the uplink transmission is performed on the DL, and the center frequency of the uplink communication signal is located on the DL; the frequency offset combination being a frequency offset from downlink spectrum to uplink spectrum, that is, the terminal performs frequency offset from DL spectrum to UL spectrum, the uplink transmission is performed on the UL, and the center frequency of the uplink communication signal is located on the UL.

[0346] (5) a bandwidth of the terminal uplink transmission, in an example, the terminal determines a frequency range of the uplink communication signal according to the preconfigured parameter, and determines any frequency in the frequency spectrum range as a transmission frequency of the uplink communication signal.

[0347] In an example, the preconfigured information can include multiple information described above, for example, the preconfigured information includes an offset coefficient f1 and a third frequency offset offset1, and the center frequency fc of the CW signal received by the terminal, then the terminal determines the center frequency of the uplink communication signal as f1×fc+offset1 according to the preconfigured parameter.

[0348] The optional implementation of step S4102 can refer to the optional implementation of step S2103 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0349] In step S4103, the uplink communication signal is transmitted to the network device according to the first frequency information and the CW signal, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0350] In some embodiments, the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0351] For example, after determining the first frequency information of the uplink communication signal, the uplink communication signal is transmitted based on the first frequency information. In this embodiment, the terminal reflects the received CW signal, and carries the uplink communication signal through the back reflection signal corresponding to the CW signal.

[0352] The optional implementation of step S4102 can refer to the optional implementation of step S2104 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0353] In the above manner, the CW signal is received, the first frequency information of the uplink communication signal is determined according to the first configuration parameter, and the uplink communication signal is transmitted to the network device according to the first frequency information and the CW signal, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal. Thus, the first frequency information of the uplink communication signal transmitted by the terminal is determined according to the first configuration parameter, and the uplink communication signal is transmitted based on the first frequency information, thereby realizing the Internet of Things device based on the backscattering of the CW signal and frequency division multiplexing in the communication transmission process.

[0354] FIG. 5A is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5A, the present embodiment relates to a communication method performed by a terminal, and the above method comprises:

[0355] In step S5101, a CW signal is received.

[0356] For example, in this embodiment, the terminal is an A-IoT device, which performs uplink transmission according to the CW signal transmitted by an energy source node. The energy source node transmits continuous CW signals to the terminal, which provides electromagnetic waves for the A-IoT device to reflect. The energy source node can be the network device in the above embodiments, or an intermediate node device in communication connection with the A-IoT device. The A-IoT device reflects the received CW signal, loads signaling information and / or communication data to be transmitted onto the reflection wave corresponding to the CW signal, and transmits the signaling information and / or communication data to the network device through the reflection wave.

[0357] Step S5102, obtaining the configuration parameter sent by the network device.

[0358] In some embodiments, the network device determines the center frequency value of the uplink transmission (the center frequency value is used to represent the center position of the signal in the frequency domain) through a two-stage joint method. For example, the network device indicates the offset spectrum through parameter 1, and determines the frequency offset value of the uplink transmission on the spectrum indicated by parameter 1 through parameter 2.

[0359] In some embodiments, parameter 1 is used to indicate the offset spectrum, which is dynamically determined by the network device and indicated to the terminal. For the large frequency offset scenario in the present embodiment, there are two frequency offset combinations, which are: the terminal fixedly performs the frequency offset from the UL spectrum to the DL spectrum, or the terminal fixedly performs the frequency offset from the DL spectrum to the UL spectrum.

[0360] In some embodiments, the frequency offset combination can be predefined, preconfigured, or dynamically indicated. For example, when the base station sends the CW fixedly on the DL spectrum, the frequency offset combination from the DL spectrum to the UL spectrum is predefined and preconfigured for the terminal. When the terminal performs the back reflection, the frequency offset from the DL spectrum to the UL spectrum is performed, that is, the uplink transmission is performed on the UL, and the center frequency of the uplink transmission is located on the UL spectrum. When the base station sends the CW fixedly on the UL spectrum, the frequency offset combination from the UL spectrum to the DL spectrum is predefined and preconfigured for the device. When the terminal performs the back reflection, the frequency offset from the UL spectrum to the DL spectrum is performed, that is, the uplink transmission is performed on the DL spectrum, and the center frequency of the uplink transmission is located on the DL spectrum.

[0361] In some embodiments, parameter 2 indicates the frequency offset value, which can be dynamically indicated by the network device, can also be predefined, preconfigured, or determined by the terminal itself (for example, the terminal determines parameter 2 according to the factory setting). For example, the parameter 2 includes the following multiple cases:

[0362] (1) Parameter 2 indicates the frequency offset value, which indicates the offset value of the center frequency of the uplink transmission relative to the starting position of the frequency spectrum indicated by parameter 1;

[0363] (2) Parameter 2 indicates the frequency offset value, which is the offset value of the center frequency of the uplink transmission relative to the center frequency position of the frequency spectrum indicated by parameter 1;

[0364] (3) Parameter 2 indicates the frequency offset value, which is the offset value of the center frequency of the uplink transmission relative to the ending position of the frequency spectrum indicated by parameter 1;

[0365] (4) The offset value indicated by parameter 2 can be predefined for the terminal, preconfigured, or dynamically indicated. By indicating a fixed offset value to the terminal, or indicating a range value of the offset value to the terminal.

[0366] In some embodiments, the frequency spectrum offset of the terminal in the uplink transmission process can be determined according to the topology structure. For example, the network device determines the topology structure in which the terminal is located, and dynamically indicates the topology structure to the terminal. The terminal performs the frequency spectrum offset according to the correspondence between the topology structure and the frequency spectrum combination defined by the protocol or predefined. For example, the network device determines that the A-IoT device is in the topology structure 2 by performing RSSI measurement on the communication signal transmitted by the A-IoT device. When the RSSI measurement value is less than the RSSI threshold value, the network device determines that the A-IoT device is in the topology structure 2. The network device indicates the topology structure of the terminal as the topology structure 2 by 1 bit of information. The terminal is configured with the correspondence between the topology structure and the frequency spectrum combination. According to the correspondence, the terminal determines that the frequency spectrum combination corresponding to the topology structure 2 is to offset from the UL frequency spectrum to the DL frequency spectrum. Then, the terminal performs the offset from the UL frequency spectrum to the DL frequency spectrum. Or, the frequency spectrum combination corresponding to the topology structure 2 is to offset from the DL frequency spectrum to the UL frequency spectrum. Then, the terminal performs the offset from the DL frequency spectrum to the UL frequency spectrum.

[0367] In some embodiments, the network device determines the topology structure in which the terminal is located, and dynamically indicates the frequency spectrum offset combination performed by the device according to the correspondence between the topology structure and the frequency spectrum combination defined by the protocol. For example, the network device determines that the A-IoT device is in the topology structure 2 by performing RSSI measurement on the communication signal transmitted by the A-IoT device. When the RSSI measurement value is less than the RSSI threshold value, the network device determines that the A-IoT device is in the topology structure 2. The frequency spectrum combination corresponding to the topology structure 2 is to offset from the UL frequency spectrum to the DL frequency spectrum, or the frequency spectrum offset combination corresponding to the topology structure 2 is to offset from the DL frequency spectrum to the UL frequency spectrum. The network device indicates the frequency spectrum offset combination as the offset from the UL frequency spectrum to the DL frequency spectrum, or the offset from the DL frequency spectrum to the UL frequency spectrum by 1 bit of information to the terminal.

[0368] In step S5103, the center frequency value of the uplink transmission and / or the bandwidth information of the uplink transmission are determined according to the configuration parameters.

[0369] In some embodiments, the configuration parameters include at least one of the following:

[0370] The center frequency value of the uplink transmission of the terminal is indicated;

[0371] The offset value offset of the center frequency of the uplink transmission relative to the center frequency of the CW signal, or the offset value range;

[0372] The offset coefficient K;

[0373] The bandwidth occupied by the uplink transmission.

[0374] In some embodiments, the configuration parameter can be configured by predefinition, preconfiguration, or dynamic indication. The offset value offset is in MHz, and the offset value is greater than 1 minimum interval, which is the minimum frequency interval between the DL spectrum and the UL frequency offset. The minimum interval can be the frequency interval between the highest frequency in the UL spectrum and the lowest frequency in the DL spectrum, or the minimum interval can be the frequency interval between the highest frequency in the DL spectrum and the lowest frequency in the UL spectrum.

[0375] In some embodiments, when the configuration parameter includes an offset coefficient, the center frequency of the CW signal is fc, and the offset coefficient is K, the terminal determines the center frequency of the uplink transmission to be fc x K. The offset coefficient K can make the center frequency of the terminal uplink transmission and the center frequency of the CW signal located on different spectrums, so that the terminal can perform a large frequency offset.

[0376] In some embodiments, the configuration parameter can include an offset coefficient K and an offset value offset, and the center frequency of the CW signal is fc. The terminal determines the center frequency of the uplink transmission to be fc x K + offset or fc x K - offset. In this embodiment, the offset direction of the terminal uplink transmission corresponding to the center frequency can be determined based on the positive and negative signs of the offset value. By using the offset coefficient K and the offset value offset, the center frequency of the terminal uplink transmission and the center frequency of the CW signal are located on different spectrums, so that the terminal can perform a large frequency offset.

[0377] In some embodiments, the configuration parameters sent by the network device are different for different terminals, so that there is a guard interval between the uplink transmissions of different types of terminals, thereby ensuring FDM of the uplink transmissions.

[0378] Step S5104, according to the center frequency value of the uplink transmission and / or the bandwidth information of the uplink transmission, the uplink communication signal is sent to the network device, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0379] In the above manner, the terminal determines the transmission frequency of the uplink communication signal based on the configuration parameter sent by the network device. Thus, the Internet of Things device based on the CW signal for backscattering is realized, and the frequency division multiplexing in the communication transmission process is proposed. A way for the terminal to perform frequency division multiplexing when performing a large frequency offset is proposed.

[0380] FIG. 5B is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5B, the present embodiment relates to a communication method, which is performed by a terminal, and the above method comprises:

[0381] Step S5201, receiving a CW signal.

[0382] The optional implementation of step S5201 can refer to the optional implementation of step S5101 in FIG. 5A and other associated parts in the embodiments related to FIG. 5A, which will not be repeated here.

[0383] In step S5202, the first configuration parameter is determined according to the pre-configuration information of the terminal.

[0384] For example, the frequency of the uplink transmission of the terminal in the embodiment is determined by the pre-configuration information of the terminal, and does not depend on the indication information of other network devices. For example, the pre-configuration parameter related to the uplink transmission frequency of the terminal in the uplink transmission process is stored in the memory or storage device of the terminal. When the terminal is in the working mode, the terminal determines the center frequency value and / or bandwidth information of the uplink transmission according to the pre-configuration parameter information.

[0385] In some embodiments, the pre-configuration information includes at least one of the following:

[0386] The center frequency value of the uplink transmission;

[0387] The offset value offset (the offset value of the center frequency of the uplink transmission relative to the center frequency corresponding to the CW signal), which is used to determine the center frequency of the uplink transmission;

[0388] The offset coefficient K, which is used to determine the center frequency of the uplink transmission, for example, the center frequency of the CW signal is fc, and the center frequency of the uplink transmission is fc×K;

[0389] The frequency offset combination, which is used to determine the frequency spectrum where the uplink transmission is located;

[0390] The bandwidth information of the uplink transmission.

[0391] In step S5203, the uplink communication signal is transmitted to the network device according to the first configuration parameter and the CW signal, and the uplink communication signal is carried by the back reflection signal corresponding to the CW signal.

[0392] The optional implementation of step S5203 can refer to the optional implementation of step S5104 in FIG. 5A and other associated parts in the embodiments related to FIG. 5A, which will not be repeated here.

[0393] In the above manner, the terminal determines the transmission frequency of the uplink communication signal based on the pre-configuration parameter. Thus, the frequency division multiplexing of the Internet of Things device based on the CW signal is realized, and a frequency division multiplexing manner is proposed when the terminal performs a large frequency offset.

[0394] The embodiments of the present disclosure further provide a device for implementing any of the above methods, for example, a device comprising units or modules for implementing the steps performed by the terminal in any of the above methods. For another example, another device is provided, comprising units or modules for implementing the steps performed by the network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0395] It should be understood that the division of each unit or module in the above device is only a logical function division, and all or part of the units or modules can be integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can be implemented in the form of processor invoking software: for example, the device comprises a processor connected with a memory, the memory stores instructions, and the processor invokes the instructions stored in the memory to implement any of the above methods or to implement the functions of each unit or module of the device, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be implemented by the design of the hardware circuit, and the hardware circuit can be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are implemented by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the hardware circuit is a programmable logic device (PLD), and taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to implement the functions of part or all of the units or modules. All units or modules of the above device can be implemented in the form of processor invoking software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules are implemented in the form of processor invoking software, and the remaining part is implemented in the form of hardware circuit.

[0396] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0397] FIG. 6 is a structural schematic diagram of a network device according to the embodiments of the present disclosure. As shown in FIG. 6, the network device 6100 can include a transceiver module 6101 and a transceiver module 6102. In some embodiments, the transceiver module 6101 is configured to send a first configuration parameter to a terminal, the first configuration parameter being used to determine first frequency information of an uplink communication signal, and the transceiver module 6102 is configured to receive the uplink communication signal sent by the terminal according to the first frequency information, the uplink communication signal being carried by a backscatter signal corresponding to an electromagnetic wave CW signal. Optionally, the transceiver module 6101 and the transceiver module 6102 are configured to perform at least one of the communication steps of determining and / or acquiring performed by the network device in any of the above methods. Details are not described herein again.

[0398] In some embodiments, the transceiver module 6101 and the transceiver module 6102 can include a receiving module and a sending module, which can be separate or integrated together. Optionally, the sending module can be replaced by a transmitter. The receiving module can be replaced by a receiver.

[0399] FIG. 7 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 7, the terminal 7100 can include a transceiver module 7101, a processing module 7102, and a transceiver module 7103. In some embodiments, the transceiver module 7101 described above is configured to receive a CW signal, the processing module 7102 described above is configured to determine first frequency information of an uplink communication signal according to a first configuration parameter, and the transceiver module 7103 described above is configured to transmit the uplink communication signal to a network device according to the first frequency information and the CW signal, the uplink communication signal being carried by a back reflection signal corresponding to the CW signal. Optionally, the transceiver module 7101, the processing module 7102, and the transceiver module 7103 are configured to perform at least one of the determination and / or acquisition and / or the like communication steps performed by the terminal in any of the above methods, which will not be described herein again.

[0400] In some embodiments, the transceiver module 7101 and the transceiver module 7103 can include a receiving module and a transmitting module, which can be separate or integrated together. Optionally, the transmitting module can be mutually replaced with a transmitter. The receiving module can be mutually replaced with a receiver.

[0401] In some embodiments, the processing module 7102 can include an execution module and an acquisition module, which can be separate or integrated together. Optionally, the execution module can be mutually replaced with an executor.

[0402] FIG. 8 is a structural schematic diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 can be a network device (for example, an access network device, a core network device, and the like), a terminal (for example, a user equipment, and the like), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 8100 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0403] As shown in FIG. 8, the communication device 8100 includes one or more third processors 8101. The third processor 8101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control a communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, and the like), execute a program, and process data of the program. Optionally, the communication device 8100 is configured to execute any of the above methods. Optionally, the one or more third processors 8101 are configured to invoke instructions to cause the communication device 8100 to execute any of the above methods.

[0404] In some embodiments, the communication device 8100 further includes one or more third transceivers 8102. When the communication device 8100 includes one or more third transceivers 8102, the third transceiver 8102 performs at least one of the communication steps of sending and / or receiving in the above-described methods, and the third processor 8101 performs at least one of the other steps. In optional embodiments, a transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, and the like can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, and the like can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, and the like can be replaced with each other.

[0405] In some embodiments, the communication device 8100 further includes one or more third memories 8103 for storing data. Optionally, all or part of the third memory 8103 can also be outside the communication device 8100. In optional embodiments, the communication device 8100 can include one or more first interface circuits 8104. Optionally, the first interface circuit 8104 is connected to the third memory 8103, and the first interface circuit 8104 can be used to receive data from the third memory 8103 or other devices, and can be used to send data to the third processor 8101 or other devices. For example, the first interface circuit 8104 can read the data stored in the third memory 8103 and send the data to the third processor 8101.

[0406] The communication device 8100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 can not be limited by Figure 8. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data, programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, and the like; (6) others, and the like.

[0407] Figure 9 is a structural schematic diagram of a chip 8200 according to an embodiment of the present disclosure. For the case where the communication device 8100 can be a chip or a chip system, reference can be made to the structural schematic diagram of the chip 8200 shown in Figure 9, but not limited thereto.

[0408] The chip 8200 includes one or more fourth processors 8201. The chip 8200 is configured to perform any of the above methods.

[0409] In some embodiments, the chip 8200 further includes one or more second interface circuits 8202. Optionally, the terms interface circuit, interface, transceiver pin, etc. can replace each other. In some embodiments, the chip 8200 further includes one or more fourth memories 8203 configured to store data. Optionally, all or part of the fourth memory 8203 can be outside the chip 8200. Optionally, the second interface circuit 8202 is connected with the fourth memory 8203, the second interface circuit 8202 can be configured to receive data from the fourth memory 8203 or other devices, and the second interface circuit 8202 can be configured to send data to the fourth memory 8203 or other devices. For example, the second interface circuit 8202 can read the data stored in the fourth memory 8203 and send the data to the fourth processor 8201.

[0410] In some embodiments, the second interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above methods. The second interface circuit 8202 performs the communication steps such as sending and / or receiving in the above methods, for example, means that the second interface circuit 8202 performs data interaction between the fourth processor 8201, the chip 8200, the fourth memory 8203 or the transceiver device. In some embodiments, the fourth processor 8201 performs at least one of the other steps.

[0411] The modules and / or devices described in each of the embodiments of the virtual device, the physical device, the chip, etc. can be combined or separated according to the situation. Optionally, part or all of the steps can also be performed by multiple modules and / or devices in cooperation, which is not limited here.

[0412] The disclosure also proposes a storage medium, and the above storage medium stores instructions, when the above instructions run on the communication device 8100, the communication device 8100 performs any of the above methods. Optionally, the above storage medium is an electronic storage medium. Optionally, the above storage medium is a computer readable storage medium, but is not limited to this, it can also be a storage medium readable by other devices. Optionally, the above storage medium can be a non-transitory storage medium, but is not limited to this, it can also be a transitory storage medium.

[0413] The disclosure also proposes a program product, and the above program product is executed by the communication device 8100, so that the communication device 8100 performs any of the above methods. Optionally, the above program product is a computer program product.

[0414] The disclosure also proposes a computer program, when it runs on a computer, it makes the computer perform any of the above methods.

Claims

1. A communication method, characterized in that: Executed by a network device, the method includes: Sending a first configuration parameter to the terminal, where the first configuration parameter is used to determine first frequency information of an uplink communication signal; The uplink communication signal sent by the terminal according to the first frequency information is received, where the uplink communication signal is carried by a back-reflected signal corresponding to an electromagnetic wave CW signal.

2. The method according to claim 1, characterized in that The first configuration parameter includes at least one of the following: The center frequency of the uplink transmission of the terminal; A first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency corresponding to the CW signal; An offset coefficient sent uplink by the terminal; The bandwidth of the uplink transmission of the terminal; an offset spectrum of the uplink communication signal, the offset spectrum being used to indicate the spectrum of the uplink communication signal after the uplink communication signal is frequency offset relative to the spectrum of the CW signal; The topology of the terminal, where the topology is a data transmission method between the network device and the terminal; The center frequency of the uplink communication signal is offset relative to the frequency of the offset spectrum.

3. The method according to claim 2, characterized in that The first frequency offset is greater than a first minimum frequency value, and the first minimum frequency value is at least one of the following: The CW signal corresponds to a minimum frequency separation between an uplink spectrum and a downlink spectrum; a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being the highest frequency in the uplink spectrum, and the sixth frequency being the lowest frequency in the downlink spectrum; The frequency interval between a seventh frequency and an eighth frequency, the seventh frequency being the highest frequency in the downlink spectrum, and the eighth frequency being the highest frequency in the uplink spectrum.

4. The method according to any one of claims 1, characterized in that The first configuration parameter includes a first parameter and a second parameter, the first parameter is used to indicate the offset spectrum of the uplink communication signal, and the second parameter is used to indicate a second frequency offset on the offset spectrum.

5. The method according to claim 4, characterized in that The CW signal is sent in a downlink spectrum, and the first parameter is used to indicate that the uplink communication signal is shifted from the downlink spectrum to the uplink spectrum.

6. The method according to claim 4, characterized in that The CW signal is sent in an uplink spectrum, and the first parameter is used to indicate that the uplink communication signal is shifted from the uplink spectrum to a downlink spectrum.

7. The method according to claim 4, characterized in that The second frequency offset is a frequency offset of the first frequency information relative to a second frequency, and the second frequency is a minimum frequency in the offset spectrum indicated by the first parameter.

8. The method according to claim 4, characterized in that The second frequency offset is a frequency offset of the first frequency information relative to a third frequency, and the third frequency is a maximum frequency in the offset spectrum indicated by the first parameter.

9. The method according to claim 4, characterized in that The second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, and the fourth frequency is a center frequency in the offset spectrum indicated by the first parameter.

10. The method according to claim 1, characterized in that The sending the first configuration parameter to the terminal includes: Determining a topology structure in which the terminal is located, where the topology structure is a data transmission mode between the network device and the terminal; The first configuration parameters are sent to the terminal according to the topology structure.

11. The method according to claim 10, characterized in that The sending the first configuration parameter to the terminal according to the topology structure includes: Determining a first parameter according to the topology, where the first parameter is used to indicate an offset spectrum of the uplink communication signal; generating the first configuration parameter according to the first parameter; Sending the first configuration parameter to the terminal.

12. The method according to any one of claims 1 to 11, characterized in that The first frequency information includes the center frequency information of the uplink communication signal and / or the bandwidth information of the uplink transmission of the terminal.

13. A communication method, characterized in that: Executed by a terminal, the method includes: Receive CW signal; Determining first frequency information of an uplink communication signal according to the first configuration parameter; The uplink communication signal is sent to a network device according to the first frequency information and the CW signal, and the uplink communication signal is carried by a back-reflected signal corresponding to the CW signal.

14. The method according to claim 13, wherein: The first configuration parameter includes at least one of the following: The center frequency of the uplink transmission of the terminal; A first frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency corresponding to the CW signal; An offset coefficient sent uplink by the terminal; The bandwidth of the uplink transmission of the terminal; The offset spectrum of the uplink communication signal; The topology of the terminal, where the topology is a data transmission method between the network device and the terminal; The center frequency of the uplink communication signal is offset relative to the frequency of the offset spectrum.

15. The method according to claim 14, characterized in that The first frequency offset is greater than a first minimum frequency value, and the first minimum frequency value is at least one of the following: The CW signal corresponds to a minimum frequency separation between an uplink spectrum and a downlink spectrum; a frequency interval between a fifth frequency and a sixth frequency, the fifth frequency being the highest frequency in the uplink spectrum, and the sixth frequency being the lowest frequency in the downlink spectrum; The frequency interval between a seventh frequency and an eighth frequency, the seventh frequency being the highest frequency in the downlink spectrum, and the eighth frequency being the highest frequency in the uplink spectrum.

16. The method according to claim 12, characterized in that The first configuration parameter includes a first parameter and a second parameter, the first parameter is used to indicate the offset spectrum of the uplink communication signal, and the second parameter is used to indicate a second frequency offset on the offset spectrum.

17. The method according to claim 16, characterized in that The CW signal is sent in a downlink spectrum, and the first parameter is used to indicate that the uplink communication signal is shifted from the downlink spectrum to the uplink spectrum.

18. The method according to claim 16, characterized in that The CW signal is sent in an uplink spectrum, and the first parameter is used to indicate that the uplink communication signal is shifted from the uplink spectrum to a downlink spectrum.

19. The method according to claim 16, wherein The second frequency offset is a frequency offset of the first frequency information relative to a second frequency, and the second frequency is a minimum frequency in the offset spectrum.

20. The method according to claim 16, wherein The second frequency offset is a frequency offset of the first frequency information relative to a third frequency, and the third frequency is a maximum frequency in the offset spectrum.

21. The method according to claim 16, wherein The second frequency offset is a frequency offset of the first frequency information relative to a fourth frequency, and the fourth frequency is a center frequency in the offset spectrum.

22. The method according to claim 13, wherein The method further comprises: The first configuration parameter is determined according to the pre-configuration information of the terminal.

23. The method according to claim 22, characterized in that The pre-configuration information includes at least one of the following: The center frequency of the uplink transmission of the terminal; A third frequency offset of the center frequency of the uplink transmission of the terminal relative to the center frequency corresponding to the CW signal; An offset coefficient sent uplink by the terminal; a frequency offset combination transmitted uplink by the terminal, the frequency offset combination comprising a frequency offset from an uplink spectrum to a downlink spectrum, or a frequency offset from a downlink spectrum to an uplink spectrum; The bandwidth of the uplink transmission of the terminal.

24. The method according to claim 14, wherein The first configuration parameter includes the offset coefficient, and determining the first frequency information of the uplink communication signal according to the first configuration parameter includes: Determining the center frequency of the CW signal; The first frequency information is determined according to the center frequency and the offset coefficient.

25. The method according to claim 14, wherein The first configuration parameter includes the offset coefficient and the second frequency offset, and determining the first frequency information of the uplink communication signal according to the first configuration parameter includes: Determining the center frequency of the CW signal; The first frequency information is determined according to the center frequency, the offset coefficient, and the second frequency offset.

26. The method according to any one of claims 13 to 25, characterized in that The first frequency information includes the center frequency information of the uplink communication signal and / or the bandwidth information of the uplink transmission of the terminal.

27. A network device, characterized in that: include: a transceiver module configured to send a first configuration parameter to the terminal, where the first configuration parameter is used to determine first frequency information of an uplink communication signal; The transceiver module is further configured to receive the uplink communication signal sent by the terminal according to the first frequency information, and the uplink communication signal is carried by a back-reflected signal corresponding to the electromagnetic wave CW signal.

28. A terminal, characterized in that: include: a transceiver module configured to receive a CW signal; a processing module configured to determine first frequency information of an uplink communication signal according to a first configuration parameter; The transceiver module is further configured to send the uplink communication signal to the network device according to the first frequency information and the CW signal, and the uplink communication signal is carried by the backreflected signal corresponding to the CW signal.

29. A network device, characterized in that: include: one or more processors; The processor is configured to execute the communication method according to any one of claims 1 to 12.

30. A terminal, characterized in that: include: one or more processors; The processor is configured to execute the communication method according to any one of claims 13 to 26.

31. A communication system, characterized in that: The invention comprises a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 12, and the network device is configured to implement the communication method according to any one of claims 13 to 26.

32. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 12 and claims 13 to 26.

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