Signal sending method, communication device, communication system and storage medium

Abstract

The invention relates to a signal sending method, a communication device, a communication system and a storage medium. The signal sending method comprises: a first device receives first information and determines whether to send a first signal according to the first information, the first signal being used for charging and / or bearing information and / or backscattering. In this way, the signal transmission for charging and / or information carrying and / or backscattering can be flexibly controlled.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a signal sending method and communication equipment, a communication system, and a storage medium. Background Art

[0002] A notable feature of the Ambient Internet of Things (AIOT) system is the large number of AIOT terminals that can access the network, the simple structure of the AIOT system, low hardware and maintenance costs, and low power consumption. Therefore, the AIOT system can be used for a long time without replacing batteries. Summary of the invention

[0003] The embodiments of the present disclosure provide a signal sending method, terminal, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology to solve the technical problem that "in the related technology, the sending of signals for charging and / or carrying information and / or backscattering cannot be flexibly controlled."

[0004] The present disclosure provides a signal sending method, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a signal sending method is proposed, which is executed by a first device; it includes: receiving first information; determining whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0006] According to the second aspect of an embodiment of the present disclosure, a signal sending method is proposed, which is executed by a second device and / or a third device; it includes: sending first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0007] According to the third aspect of an embodiment of the present disclosure, a signal sending method is proposed, including: the second device and / or the third device sends first information; the first device receives the first information and determines whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a first device is proposed, comprising: a transceiver module, used to receive first information, and determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0009] According to the fifth aspect of an embodiment of the present disclosure, a second device or a third device is proposed, comprising: a transceiver module for sending first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0010] According to the sixth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the processor is used to call instructions so that the communication device executes the signal sending method of any one of the first aspect, the second aspect, and the third aspect.

[0011] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a first device, a second device and / or a third device, wherein the first device is configured to implement the signal sending method of the first aspect, and the second device and / or the third device is configured to implement the signal sending method of the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes a signal sending method as described in any one of the first aspect, the second aspect, and the third aspect.

[0013] According to a ninth aspect of an embodiment of the present disclosure, a computer program product is proposed, comprising a computer program, which, when executed by a processor, implements a signal sending method as in any one of the first aspect, the second aspect, and the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0015] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0016] Figure 1B is a schematic diagram of the architecture of another communication system according to an embodiment of the present disclosure;

[0017] Figure 2A is an interactive schematic diagram of a signal sending method according to an embodiment of the present disclosure;

[0018] Figure 2B is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0019] Figure 3A is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0020] Figure 3B is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0021] Figure 3C is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0022] Figure 4A is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0023] Figure 4B is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure;

[0024] Figure 5 is an interactive schematic diagram of a signal sending method according to yet another embodiment of the present disclosure;

[0025] Fig. 6A is a schematic diagram of a topological structure 1 in an embodiment of the present disclosure;

[0026] Figure 6B is a schematic diagram of a topological structure 2 in an embodiment of the present disclosure;

[0027] Figure 6C is a schematic diagram of a topological structure 2 in another embodiment of the present disclosure;

[0028] Fig.6D is a schematic diagram of a topological structure 2 in another embodiment of the present disclosure;

[0029] Fig. 6E is an application schematic diagram of an embodiment of the present disclosure;

[0030] Fig. 6F is an application schematic diagram of another embodiment of the present disclosure;

[0031] Figure 6G is an application schematic diagram of another embodiment of the present disclosure;

[0032] Figure 6H is an application schematic diagram of another embodiment of the present disclosure;

[0033] Fig.6I is an application schematic diagram of another embodiment of the present disclosure;

[0034] Fig. 7A is a structural schematic diagram of a first device proposed in an embodiment of the present disclosure;

[0035] Figure 7B is a schematic diagram of the structure of the second device or the third device proposed in the embodiment of the present disclosure;

[0036] Fig. 8A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure;

[0037] Figure 8B It is a schematic diagram of the structure of the chip proposed in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide a signal sending method, a communication device, a communication system, and a storage medium.

[0039] In a first aspect, an embodiment of the present disclosure provides a signal sending method, which is performed by a first device; the method includes:

[0040] receiving a first message;

[0041] According to the first information, it is determined whether to send a first signal, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0042] In the above embodiment, the first device can receive the first information and determine whether to send the first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering. The sending of the signal used for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the first signal includes: a carrier CW.

[0044] In the above-mentioned embodiment, the transmission of the carrier wave CW can be flexibly controlled.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the carrier CW includes: at least one single frequency non-modulated sine wave.

[0046] In the above embodiments, it is possible to support improving the accuracy and control effect of carrier CW transmission control.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0048] In the above embodiment, it is possible to flexibly indicate to the first device whether to send the first signal.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate sending the first signal, and the second cyclic shift is used to indicate not sending the first signal.

[0050] In the above embodiment, it is possible to flexibly indicate to the first device whether to send the first signal.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0052] determining second information;

[0053] According to the second information, a first signal is sent.

[0054] In the above embodiment, since the first device can send the first signal based on the second information determined autonomously under the triggering of the second device and / or the third device, it is possible to flexibly control the sending of signals for charging and / or carrying information and / or backscattering.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0056] receiving third information;

[0057] Determining the second information according to the third information;

[0058] According to the second information, a first signal is sent.

[0059] In the above embodiment, since the first device, under the triggering of the second device and / or the third device, can further determine the second information based on the third information sent by the second device and / or the third device, and send the first signal based on the second information, it is possible to flexibly control the sending of signals for charging and / or carrying information and / or backscattering.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes at least one of the following:

[0061] Sending start time;

[0062] Sending duration;

[0063] The number of transmissions of a single frequency non-modulated sine wave;

[0064] The transmit frequency corresponding to each single frequency non-modulated sine wave;

[0065] The total transmit power of the first signal.

[0066] In the above embodiment, the first signal can be sent on demand and the sending flexibility of the first signal is improved.

[0067] In combination with some embodiments of the first aspect, in some embodiments, the time offset of the sending start time relative to the first time is greater than or equal to 0, and the first time is the time of receiving the first information.

[0068] In the above embodiment, it is possible to flexibly support on-demand sending of the first signal.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0070] In the above embodiment, the effect of sending the first signal can be improved, and the interference between different single-frequency non-modulated sinusoidal waves can be effectively reduced.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the third information includes at least one of the following:

[0072] Time offset, which is used to determine the start time of transmission;

[0073] first indication information, the first indication information indicating a reference starting time;

[0074] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0075] third indication information, where the third indication information indicates a reference duration;

[0076] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0077] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0078] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0079] Frequency domain offset, which is used to determine the transmission frequency of a single frequency non-modulated sine wave;

[0080] The total transmit power of the first signal.

[0081] In the above embodiment, the flexibility and effectiveness of the first signal sending control can be greatly improved, and personalized sending requirements can be supported, which is effectively applicable to personalized communication scenarios.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, the frequency type includes at least one of the following:

[0083] Maximum frequency;

[0084] Minimum frequency;

[0085] Center frequency.

[0086] In the above embodiment, it is possible to support the first device to flexibly determine the transmission frequency used for sending the first signal.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, determining the sending start time according to the third information includes any one of the following:

[0088] Taking the time with time offset relative to the reference time as the sending start time;

[0089] Taking the reference starting time as the sending starting time;

[0090] Based on the time interval, the sending start time is determined.

[0091] In the above embodiment, it is possible to accurately determine the sending start time used for sending the first signal.

[0092] In conjunction with some embodiments of the first aspect, in some embodiments, the reference time is determined based on any one of the following:

[0093] time domain resource determination based on third information;

[0094] Determined based on system time.

[0095] In the above embodiment, the sending start time of the first signal can be determined effectively and quickly.

[0096] In combination with some embodiments of the first aspect, in some embodiments, determining the sending duration according to the third information includes any one of the following:

[0097] The reference duration is used as the sending duration;

[0098] The duration between the sending start time and the time when the first information is received again is used as the sending duration;

[0099] The duration between two adjacent time intervals is taken as the sending duration.

[0100] In the above embodiment, it is possible to accurately determine the sending duration used for sending the first signal.

[0101] In combination with some embodiments of the first aspect, in some embodiments, determining the number and frequency of sending of a single-frequency non-modulated sine wave according to the third information includes:

[0102] The reference number of the single frequency non-modulated sine wave is used as the transmitted number of the single frequency non-modulated sine wave;

[0103] The transmission frequency of the single-frequency non-modulated sine wave is determined based on the reference frequency and frequency type and frequency domain offset of at least one single-frequency non-modulated sine wave.

[0104] In the above embodiment, it is possible to accurately determine the number and frequency of transmission of single-frequency non-modulated sine waves.

[0105] In combination with some embodiments of the first aspect, in some embodiments, receiving third information includes:

[0106] Receive third information sent by the second device and / or the third device.

[0107] In the above embodiment, the flexibility of the third information indication can be improved and effectively applied to personalized communication scenarios.

[0108] In conjunction with some embodiments of the first aspect, in some embodiments, receiving first information includes:

[0109] Receive first information sent by the second device and / or the third device.

[0110] In the above embodiment, the flexibility of the first information indication can be improved and effectively applied to personalized communication scenarios.

[0111] In combination with some embodiments of the first aspect, in some embodiments, the third information is based on at least one of the following bearers:

[0112] Physical downlink control channel PDCCH;

[0113] Physical downlink shared channel PDSCH;

[0114] Media Access Control Element MAC CE;

[0115] Radio Resource Control RRC signaling message.

[0116] In the above embodiment, it is possible to effectively support improving the flexibility of sending the third information.

[0117] In conjunction with some embodiments of the first aspect, in some embodiments, the first device includes at least one of the following:

[0118] Intermediate node terminal;

[0119] Access network equipment;

[0120] Terminal type carrier node.

[0121] In the above embodiments, support is provided for personalized application scenarios.

[0122] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is based on at least one of the following bearers:

[0123] PDCCH;

[0124] PDSCH;

[0125] MAC CE;

[0126] RRC signaling message.

[0127] In the above embodiment, it is possible to effectively support improving the flexibility of sending the first information.

[0128] In a second aspect, an embodiment of the present disclosure provides a signal sending method, which is performed by a second device and / or a third device; the method includes:

[0129] The first information is sent, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0130] In combination with some embodiments of the second aspect, in some embodiments, the first signal includes: a carrier CW.

[0131] In combination with some embodiments of the second aspect, in some embodiments, the carrier CW includes: at least one single frequency non-modulated sine wave.

[0132] In combination with some embodiments of the second aspect, in some embodiments, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0133] In combination with some embodiments of the second aspect, in some embodiments, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate sending the first signal, and the second cyclic shift is used to indicate not sending the first signal.

[0134] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0135] The third information is sent, wherein the third information is used by the first device to determine the second information, and the second information is used to send the first signal.

[0136] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes at least one of the following:

[0137] Sending start time;

[0138] Sending duration;

[0139] The number of transmissions of a single frequency non-modulated sine wave;

[0140] The transmit frequency corresponding to each single frequency unmodulated sine wave.

[0141] The total transmit power of the first signal.

[0142] In combination with some embodiments of the second aspect, in some embodiments, the time offset of the sending start time relative to the first time is greater than or equal to 0, and the first time is the time of receiving the first information.

[0143] In combination with some embodiments of the second aspect, in some embodiments, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0144] In conjunction with some embodiments of the second aspect, in some embodiments, the third information includes at least one of the following:

[0145] Time offset, which is used to determine the start time of transmission;

[0146] first indication information, the first indication information indicating a reference starting time;

[0147] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0148] third indication information, where the third indication information indicates a reference duration;

[0149] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0150] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0151] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0152] Frequency domain offset,Frequency domain offset is used to determine the transmission frequency of a single frequency non-modulated sine wave.

[0153] The total transmit power of the first signal.

[0154] In conjunction with some embodiments of the second aspect, in some embodiments, the frequency type includes at least one of the following:

[0155] Maximum frequency;

[0156] Minimum frequency;

[0157] Center frequency.

[0158] In conjunction with some embodiments of the second aspect, in some embodiments, the third information is based on at least one of the following bearers:

[0159] Physical downlink control channel PDCCH;

[0160] Physical downlink shared channel PDSCH;

[0161] Media Access Control Element MAC CE;

[0162] Radio Resource Control RRC signaling message.

[0163] In combination with some embodiments of the second aspect, in some embodiments, the second device includes: an access network device, and the third device includes: an intermediate node terminal.

[0164] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is based on at least one of the following bearers:

[0165] PDCCH;

[0166] PDSCH;

[0167] MAC CE;

[0168] RRC signaling message.

[0169] In a third aspect, an embodiment of the present disclosure provides a signal sending method; the method includes:

[0170] The second device and / or the third device sends the first information;

[0171] The first device receives the first information, and determines whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0172] In a fourth aspect, an embodiment of the present disclosure provides a first device; the first device includes:

[0173] The transceiver module is used to receive first information and determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0174] In a fifth aspect, an embodiment of the present disclosure provides a second device or a third device; the second device or the third device includes:

[0175] The transceiver module is used to send first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0176] In a sixth aspect, an embodiment of the present disclosure provides a communication device, including:

[0177] one or more processors;

[0178] The processor is used to execute the signal sending method of any one of the first aspect, the second aspect, and the third aspect.

[0179] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, comprising a first device, a second device and / or a third device, wherein the first device is configured to implement the communication method of the first aspect, and the second device and / or the third device is configured to implement the communication method of the second aspect.

[0180] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute a signal sending method as described in any one of the first, second, and third aspects.

[0181] In a ninth aspect, an embodiment of the present disclosure proposes a computer program product, including a computer program, which, when executed by a processor, implements a signal sending method as described in any one of the first aspect, the second aspect, and the third aspect.

[0182] It can be understood that the above-mentioned signal transmission method, the first device, the second device, the third device, the communication device, the chip system, the storage medium, the computer program and the computer program product are all used to execute the method proposed in the embodiment 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 repeated here.

[0183] The embodiments of the present disclosure provide a signal sending method and device, a communication device, a communication system, and a storage medium. In some embodiments, the terms such as the signal sending method, the information processing method, and the communication method can be replaced with each other, the terms such as the signal sending device, the information processing device, and the communication device can be replaced with each other, and the terms such as the information processing system and the communication system can be replaced with each other.

[0184] The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0185] In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

[0186] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0187] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun after the article may be understood as a singular expression or a plural expression.

[0188] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0189] In some embodiments, the terms “at least one,” “one or more,” “a plurality of,” “multiple,” etc. may be used interchangeably.

[0190] In some embodiments, "at least one of A and B", "A and / or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

[0191] In some embodiments, the recording method of "A or B" may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

[0192] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

[0193] In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0194] In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

[0195] In some embodiments, terms such as "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", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0196] In some embodiments, devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0197] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0198] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be understood as "node (node)", "access point (access point)", "transmission point (TP)", "reception point (reception point, RP)", "transmission and / or reception point (transmission / reception point, TRP)"", "panel (panel)", "antenna panel (antenna panel)", "antenna array (antenna array)"", "cell (cell)", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell group)", "serving cell (serving cell)", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like.

[0199] In some embodiments, "terminal" or "terminal device" can be referred to as "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, etc.

[0200] In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0201] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0202] Figure 1A It is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0203] like Figure 1A As shown, the communication system 1100 may include a first AIOT device 1101 and a second AIOT device 1102 .

[0204] In some embodiments, the first AIOT device 1101 may be any one of a terminal, a network device, an intermediate node, an auxiliary node, and the like.

[0205] In some embodiments, the second AIOT device 1102 may be any one of a network device, an intermediate node, an auxiliary node, and the like.

[0206] In some embodiments, the intermediate node may be a relay, an Integrated Access Backhaul (IAB) node, a User Equipment (UE), a repeater (RP), and the like.

[0207] In some embodiments, Figure 1A As shown, taking the first AIOT device 1101 as a terminal and the second AIOT device 1102 as a base station as an example, the first AIOT device 1101 and the base station can directly receive and transmit downlink (DL) and uplink (UL) data. The first AIOT device 1101 can be directly connected to the base station (BS) and perform two-way communication. The communication content between the first AIOT device 1101 and the base station includes data, signaling, etc. Figure 1A There is also another possible situation, where base station 1 sends a downlink to the first AIOT device 1101, and the first AIOT device 1101 sends an uplink to base station 2. At this time, the base stations for the downlink and the corresponding uplink of the same service communication may be different base stations.

[0208] In some embodiments, Figure 1B As shown, Figure 1B is a schematic diagram of another architecture of a communication system according to an embodiment of the present disclosure, Figure 1B With the second AIOT device 1102 as the intermediate node, the first AIOT device 1101 and the base station can also indirectly perform DL and UL data reception and transmission through the second AIOT device 1102. The first AIOT device 1101 can perform two-way communication with the intermediate node, and the intermediate node and the base station can perform two-way communication according to cellular communication. The intermediate node can be regarded as a relay between the first AIOT device 1101 and the base station, and the intermediate node supports the ability to communicate with Ambient IoT devices. The intermediate node transmits data and signaling between the base station and the first AIOT device 1101 in a two-way manner to complete the communication.

[0209] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.

[0210] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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 base station (Open RAN), a cloud base station (CloudRAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0211] In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

[0212] In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be referred to as a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

[0213] In some embodiments, the communication system may further include a core network device (not shown in the figure). The core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0214] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. A person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0215] The following embodiments of the present disclosure can be applied to Figure 1A , Figure 1B The communication system or part of the subject shown is not limited thereto. Figure 1A , Figure 1B The various entities shown are examples, and the communication system may include Figure 1A , Figure 1B All or part of the subject, and may also include Figure 1A , Figure 1B The number and form of other entities are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be connected or disconnected, the connection can be in any way, it can be direct or indirect, and it can be wired or wireless.

[0216] Embodiments of the present disclosure may 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), 6th generation mobile communication system (6G), 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 (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), systems using other communication methods, next-generation systems based on them, etc. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G, etc.) for application.

[0217] Optionally, AIOT devices can be divided into AIOT devices of type A (Device A), AIOT devices of type B (Device B), and AIOT devices of type C (Device C). Among them, AIOT devices of type A cannot perform independent signal generation / amplification, for example, backscatter working mode can be used. However, it does not have the ability to amplify DL signals and / or UL signals. AIOT devices of type B have energy storage capabilities, but cannot perform independent signal generation. For example, backscatter working mode can be used. And the stored energy is used for DL ​​signal and / or UL signal amplification. The modulation and demodulation methods that can be used by AIOT devices of type A / AIOT devices of type B are relatively simple, such as On-Off Keying (OOK) modulation / Phase Shift Keying (PSK) modulation, etc. AIOT devices of type C have energy storage capabilities and can generate signals independently, such as a Radio Frequency (RF) module that actively sends signals. Type C AIOT devices can also use more complex modulation and coding methods, such as Orthogonal Frequency Division Multiplexing (OFDM) modulation and demodulation. Uplink or downlink signals can be amplified.

[0218] Optionally, among the above three types, Device C has the strongest capability and the highest cost. Device A has the weakest capability and the lowest cost. In addition, since Device A and B can only use the backscattering working mode and cannot actively send signals, when they need to send information, they need to be provided with a carrier wave (CW) for backscattering by the outside world. The supported coverage range is small, but the power consumption of the working mode of Device A / Device B is much smaller than that of the working mode of Device C.

[0219] Optionally, the backscatter-based operation means that when the AIOT device sends data, it needs an energy source that provides a carrier wave (CW) (also referred to as a CW node) to provide it with electromagnetic waves for reflection. Among them, CW is generally of constant amplitude. The CW node can be a separate node or a base station / intermediate node (such as UE) that communicates with the AIOT device. The AIOT device reflects the received CW, loads the signaling / data to be transmitted onto the reflected wave, and sends the reflected wave. The reflected wave and the CW have the same frequency or there is a certain frequency offset. At the same time, CW can also charge the AIOT device. For example, the AIOT device can receive the wireless signal CW, activate the internal receiving and processing module, and start working to encode and modulate the signaling / data to be uploaded by the AIOT device.

[0220] Optionally, AIOT devices have the characteristics of small memory, low processing power, low power consumption, small amount of transmitted data, large connection, and high coverage. Therefore, the design of downlink channels in AIOT scenarios needs to comprehensively consider these characteristics, and the design of some channels can be simplified to reduce the complexity of implementation and the complexity of products.

[0221] Optionally, in Ambient IoT applications, physical layer links and channels are specified (the reader can be a base station or an intermediate UE). R2D stands for Reader-to-Device, corresponding to the Physical Reader-to-Device Channel (PRDCH). D2R stands for Device-to-Reader, corresponding to the Physical Device-to-Reader Channel (PDRCH). CW2D stands for carrier-wave-to-device.

[0222] Optionally, for Ambient IoT devices that cannot actively transmit, a carrier CW needs to be provided externally to the Ambient IoT device for backscatter of the Ambient IoT device. When the carrier CW is provided by an access network device (such as a base station) or an intermediate node terminal (such as an intermediate node UE) included in the topology, the carrier CW can be considered to come from the topology (CW from inside topology); when the carrier CW is provided by a node outside the topology, the carrier CW can be considered to come from the topology (CW from outside topology).

[0223] Figure 2A FIG. 1 is an interactive schematic diagram of a signal sending method according to an embodiment of the present disclosure. Figure 2A As shown, the embodiment of the present disclosure relates to a signal sending method, which can be used in a communication system 100. The method includes:

[0224] Step S2101: the second device and / or the third device sends first information.

[0225] In some embodiments, the second device may be, for example, a network device, specifically, for example, a base station, which is not limited.

[0226] In some embodiments, the third device may be, for example, an intermediate node terminal (eg, an intermediate UE), which is not limited.

[0227] In some embodiments, the first device may be a device that sends the first signal.

[0228] In some embodiments, the first device includes at least one of the following: an intermediate node terminal (e.g., an intermediate node UE (intermediate UE)); an access network device (e.g., a base station); a terminal-type carrier node (e.g., a UE-type CWN), thereby supporting personalized application scenarios.

[0229] In some embodiments, the intermediate node terminal (e.g., intermediate node UE) may be within the topology, i.e., insidetopology, and the intermediate UE may be used as a reader to send R2D and / or receive D2R. The access network device (e.g., base station) may be within the topology, i.e., insidetopology, and the access network device (e.g., base station) may be used as a reader to send R2D and / or receive D2R. The carrier node of the terminal type (e.g., UE-type CWN) may be outside the topology, i.e., outsidetopology, and CWN cannot be used as a reader.

[0230] In some embodiments, the terminal type carrier node (e.g., UE type CWN) may include: an ordinary terminal, which only has the NR uplink and downlink functions and the function of sending CW. A terminal supporting the AIoT function supports both the NR uplink and downlink functions and the function of sending CW, and supports sending R2D and receiving D2R. There is no restriction on terminals that only support sending CW.

[0231] The first information is used by the first device to determine whether to send the first signal. The first information may be a trigger information, and the first device may refer to the first information to determine whether to send the first signal, or determine not to send the first signal (stop sending the first signal), without limitation.

[0232] In some embodiments, the first signal is used for charging and / or carrying information and / or backscattering. The first signal can be used for charging, or for carrying information, or for backscattering. The first signal can also be used to achieve a combination of at least two of the foregoing, without limitation.

[0233] In some embodiments, the second device may indicate the first information to the first device; or the third device may indicate the first information to the first device; or the second device and the third device may jointly indicate the first information to the first device, without limitation.

[0234] In some embodiments, the first signal includes: a carrier CW. Thus, the sending of the carrier CW can be flexibly controlled.

[0235] Of course, the first signal may also include any other possible signal having the functions of charging and / or carrying information and / or backscattering, and there is no limitation to this.

[0236] In some embodiments, the carrier CW may include: at least one single frequency non-modulated sine wave. Thus, it is possible to improve the accuracy and control effect of the carrier CW transmission control.

[0237] That is to say, in some embodiments, the carrier CW may include one single-frequency non-modulated sine wave; or two single-frequency non-modulated sine waves; or more than two single-frequency non-modulated sine waves, without limitation.

[0238] In some embodiments, the first information may include a first value or a second value, wherein the first value is used to indicate that the first signal is sent, and the second value is used to indicate that the first signal is not sent. The first value and the second value are different. Thus, it is possible to flexibly indicate to the first device whether to send the first signal.

[0239] In some embodiments, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent. The first cyclic shift and the second cyclic shift are different. Thus, it is possible to flexibly indicate to the first device whether to send the first signal.

[0240] In some embodiments, when the sender of the first information (an optional example of the second device) is an access network device (e.g., a base station), the first information is carried based on at least one of the following: Physical Downlink Control Channel (PDCCH); Physical layer through Physical Downlink Shared Channel (PDSCH); Media Access Control-Control Element (MAC-CE); Radio Resource Control (RRC) signaling message. This can effectively support improving the flexibility of sending the first information.

[0241] Step S2102: The first device determines to send a first signal based on the first information.

[0242] In some embodiments, after receiving the first information, the first device may determine whether to send the first signal based on the first information. For example, if the first signal includes a first value, it is determined to send the first signal. Or if the first signal includes a first cyclic shift, it is determined to send the first signal.

[0243] In some other embodiments, if it is determined based on the first information that the first signal is not to be sent, step S2103 and step S2104 may not be performed, and there is no limitation on this. For example, if the first signal includes the second value, it is determined that the first signal is not to be sent. Or if the first signal includes the second cyclic shift, it is determined that the first signal is not to be sent.

[0244] Step S2103: the first device determines the second information.

[0245] In some embodiments, after determining to send the first signal, the first device may autonomously determine second information, where the second information refers to characteristic information of sending the first signal.

[0246] In some embodiments, the first information may include the second information. After receiving the first information and determining to send the first signal, the first device may parse the first information to obtain the second information; or the first device may determine the predefined second information after receiving the first information and determining to send the first signal, without limitation.

[0247] In some embodiments, the second information includes at least one of the following: the start time of transmission; the duration of transmission; the number of transmissions of single-frequency non-modulated sine waves; the transmission frequency corresponding to each single-frequency non-modulated sine wave; and the total transmission power of the first signal. In this way, the first signal can be transmitted on demand and the transmission flexibility of the first signal can be improved.

[0248] The transmission start time refers to the start time of transmitting the first signal. The transmission duration refers to the duration of transmitting the first signal. The number of transmissions of the single-frequency non-modulated sine wave may be at least one. The transmission frequency refers to the frequency used to transmit the corresponding single-frequency non-modulated sine wave.

[0249] The total transmission power of the first signal refers to the power used to transmit the first signal. If the first signal includes a single frequency non-modulated sine wave, the total transmission power of the first signal is the power of the single frequency non-modulated sine wave; if the first signal includes two or more single frequency non-modulated sine waves, the total transmission power of the first signal is the sum of the transmission powers of the two or more single frequency non-modulated sine waves. The single frequency non-modulated sine waves may be evenly distributed with respect to the total transmission power.

[0250] In some embodiments, if the first signal includes two or more single-frequency non-modulated sinusoidal waves, the total transmission power of the first signal may be evenly distributed to each single-frequency non-modulated sinusoidal wave.

[0251] In some embodiments, the time offset of the transmission start time relative to the first time is greater than or equal to 0, and the first time is the time of receiving the first information. Thus, it is possible to flexibly support the on-demand transmission of the first signal.

[0252] In some embodiments, the transmission frequencies of different single-frequency non-modulated sine waves are different, thereby improving the effect of first signal transmission and effectively reducing interference between different single-frequency non-modulated sine waves.

[0253] Step S2104: The first device sends a first signal according to the second information.

[0254] In some embodiments, after the first device determines to send the first signal and determines the second information used to send the first signal, the first device may send the first signal based on the second information.

[0255] For example, the first signal can be sent based on at least one of the sending start time, sending duration, the number of single-frequency non-modulated sine waves sent, the sending frequency corresponding to each single-frequency non-modulated sine wave, the total sending power of the first signal, etc. in the second information.

[0256] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S2101 to step S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S2101+S2102 may be implemented as independent embodiments, but not limited thereto.

[0257] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0258] In this embodiment, the second device and / or the third device sends the first information, the first device determines to send the first signal based on the first information, and determines the second information, and the first device sends the first signal based on the second information. Since the first device can send the first signal based on the autonomously determined second information under the triggering of the second device and / or the third device, the sending of signals for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0259] It should be noted that in the following embodiments, the descriptions of the terms and method steps that are the same as or corresponding to those in the above embodiments can be referred to in conjunction with the above embodiments and will not be repeated below.

[0260] Figure 2B FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 2B As shown, the embodiment of the present disclosure relates to a signal sending method, which can be used in a communication system 100. The method includes:

[0261] Step S2201: the second device and / or the third device sends first information.

[0262] Step S2202: The first device determines to send a first signal based on the first information.

[0263] For the description of step S2201 - step S2202 , please refer to the above embodiment and will not be repeated here.

[0264] Step S2203: the second device and / or the third device sends third information.

[0265] The third information can be used to determine the second information.

[0266] In some embodiments, the second device and / or the third device may support the first device in determining appropriate second information by sending third information to the first device.

[0267] In the embodiments of the present disclosure, the first information and the third information may be sent by the same device, such as both sent by the second device, or both sent by the third device. Alternatively, the first information may be sent by the second device, and the third information may be sent by the third device. Alternatively, the first information may be sent by the third device, and the third information may be sent by the second device. There is no limitation on this.

[0268] In some embodiments, when the transmitter of the third information (an optional example of the second device) is an access network device (e.g., a base station), the third information is based on at least one of the following bearers: a physical downlink control channel PDCCH; a physical downlink shared channel PDSCH; a media access control control element MAC CE; a radio resource control RRC signaling message. This can effectively support improving the flexibility of sending the third information.

[0269] In some embodiments, the third information includes at least one of the following: time offset, the time offset is used to determine the start time of transmission; first indication information, the first indication information indicates the reference start time; second indication information, the second indication information indicates the time interval between two adjacent transmissions of the first signal; third indication information, the third indication information indicates the reference duration; fourth indication information, the fourth indication information indicates that the first signal is continuously transmitted before the first information is received again, and the first information received again is used to trigger the stop of the transmission of the first signal; fifth indication information, the fifth indication information indicates the reference number of single-frequency non-modulated sine waves; sixth indication information, the sixth indication information indicates the reference frequency and frequency type of at least one single-frequency non-modulated sine wave; frequency domain offset, the frequency domain offset is used to determine the transmission frequency of the single-frequency non-modulated sine wave; the total transmission power of the first signal. In this way, the flexibility and effectiveness of the control of the transmission of the first signal can be greatly improved, and personalized transmission requirements can be supported, which is effectively applicable to personalized communication scenarios.

[0270] The time offset refers to a time offset relative to a reference time. The second device and / or the third device may indicate a time offset to the first device to support the first device in determining a suitable start time of transmission.

[0271] The reference time may be the first time when the first device receives the first information, and there is no limitation on this.

[0272] In some embodiments, the second device and / or the third device may send first indication information to the first device to directly indicate a reference start time to the first device based on the first indication information, and the reference start time may be directly used to send the first signal.

[0273] In some embodiments, the second device and / or the third device may send a second indication message to the first device to indicate to the first device the time interval between two adjacent sending of the first signal based on the second indication message. The time interval may also be used by the first device to determine the start time of sending, such as not sending the first signal within the time interval but sending the first signal between the time intervals. There is no limitation to this.

[0274] In some embodiments, the second device and / or the third device may send third indication information to the first device to indicate a reference duration to the first device based on the third indication information, and the reference duration may be used by the first device to determine the duration of sending the first signal.

[0275] In some embodiments, the second device and / or the third device may send fourth indication information to the first device to indicate to the first device based on the fourth indication information to continue to send the first signal before receiving the first information again, and the first information received again is used to trigger the stop of sending the first signal. The first device may determine the duration of sending the first signal based on the fourth indication information.

[0276] In some embodiments, the second device and / or the third device may send fifth indication information to the first device to indicate to the first device a reference number of single-frequency non-modulated sine waves based on the fifth indication information, such as sending one single-frequency non-modulated sine wave; or sending 2 single-frequency non-modulated sine waves; or sending more than 2 single-frequency non-modulated sine waves.

[0277] In some embodiments, the second device and / or the third device may send sixth indication information to the first device to indicate the reference frequency and frequency type of at least one single-frequency non-modulated sine wave to the first device based on the sixth indication information. The first device may determine the transmission frequency of each single-frequency non-modulated sine wave with reference to the sixth indication information.

[0278] In some embodiments, the frequency type includes at least one of the following: maximum frequency; minimum frequency; center frequency. Thus, the first device can be supported to flexibly determine the transmission frequency used to send the first signal.

[0279] In some embodiments, the second device and / or the third device may indicate a frequency domain offset to the first device, and the first device may determine the transmission frequency of each single-frequency non-modulated sine wave with reference to the frequency domain offset.

[0280] In some embodiments, the second device and / or the third device may indicate the total transmit power of the first signal to the first device, and the first device may determine the transmit power of each single-frequency non-modulated sine wave with reference to the total transmit power of the first signal.

[0281] Step S2204: The first device determines the second information according to the third information.

[0282] In some embodiments, after receiving the third information sent by the second device and / or the third device, the first device may refer to the third information to determine the second information used to send the first signal.

[0283] In some embodiments, determining the sending start time according to the third information includes any of the following: using a time with a time offset relative to a reference time as the sending start time; using the reference start time as the sending start time; determining the sending start time based on a time interval. Thus, it is possible to accurately determine the sending start time used to send the first signal.

[0284] In some embodiments, the reference time is determined based on any one of the following: based on the time domain resource of the third information; based on the system time, so that the sending start time of sending the first signal can be determined effectively and quickly.

[0285] In some embodiments, the first device may use a time point having a time offset relative to a reference time point as a sending start time point for sending the first signal.

[0286] In some embodiments, the first device may directly use the reference start time indicated by the second device and / or the third device as the sending start time for sending the first signal.

[0287] In some embodiments, the first device may determine the sending start time based on the time interval. For example, the first signal is not sent within the time interval, and the first signal is sent between two adjacent time intervals. The end time of each time interval may be used as the sending start time of sending the first signal.

[0288] In some embodiments, determining the sending duration according to the third information includes any of the following: using the reference duration as the sending duration; using the duration between the sending start time and the time when the first information is received again as the sending duration; using the duration between two adjacent time intervals as the sending duration. In this way, the sending duration used to send the first signal can be accurately determined.

[0289] In some embodiments, the first device may directly use the reference duration indicated by the second device and / or the third device as the sending duration for sending the first signal.

[0290] In some embodiments, if the duration between the start time of sending and the time of receiving the first information again is determined as the sending duration, the first device can continuously send the first signal to support receiving the first information again, and the first information received again is used to trigger stopping sending the first signal.

[0291] In some embodiments, after receiving the time interval indicated by the second device and / or the third device, the first device may use the duration between two adjacent time intervals as the sending duration, that is, the first signal may be continuously sent between two adjacent time intervals, and the first signal may not be sent within the time interval.

[0292] In some embodiments, determining the number and frequency of transmission of a single frequency non-modulated sine wave according to the third information includes: using the reference number of the single frequency non-modulated sine wave as the number of transmission of the single frequency non-modulated sine wave; and determining the frequency of transmission of the single frequency non-modulated sine wave based on the reference frequency, frequency type and frequency domain offset of at least one single frequency non-modulated sine wave. Thus, the number and frequency of transmission of the single frequency non-modulated sine wave can be accurately determined.

[0293] Step S2205: Send a first signal according to the second information.

[0294] In some embodiments, after the first device determines to send the first signal and determines the second information used to send the first signal based on the third information, the first device may send the first signal based on the second information.

[0295] For example, the first signal can be sent based on at least one of the sending start time, sending duration, the number of single-frequency non-modulated sine waves sent, the sending frequency corresponding to each single-frequency non-modulated sine wave, the total sending power of the first signal, etc. in the second information.

[0296] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S2201 to step S2205. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S2201+S2202 may be implemented as independent embodiments, but not limited thereto.

[0297] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0298] In this embodiment, the second device and / or the third device sends the first information, and the first device determines to send the first signal based on the first information. The second device and / or the third device sends the third information, and the first device determines the second information based on the third information, and sends the first signal based on the second information. Since the first device is triggered by the second device and / or the third device, it can further determine the second information based on the third information sent by the second device and / or the third device, and send the first signal based on the second information. Thus, the sending of signals for charging and / or carrying information and / or backscattering can be flexibly controlled.

[0299] Figure 3A FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 3AAs shown, the embodiment of the present disclosure relates to a signal sending method. Executed by a first device. The method includes:

[0300] Step S3101, receiving first information.

[0301] Step S3102: Determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0302] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3102. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S3101+S3102 may be implemented as independent embodiments, but not limited thereto.

[0303] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0304] Figure 3B FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 3B As shown, the embodiment of the present disclosure relates to a signal sending method. Executed by a first device. The method includes:

[0305] Step S3201, receiving first information.

[0306] Step S3202: Determine to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0307] Step S3203, determine the second information.

[0308] Step S3204: Send a first signal according to the second information.

[0309] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S3201 to step S3204. For example, step S3201 may be implemented as an independent embodiment, step S3202 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S3201+S3202 may be implemented as independent embodiments, but not limited thereto.

[0310] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0311] Figure 3C FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 3C As shown, the embodiment of the present disclosure relates to a signal sending method. Executed by a first device. The method includes:

[0312] Step S3301, receiving first information.

[0313] Step S3302: Determine to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0314] Step S3303, receiving third information.

[0315] Step S3304, determine the second information based on the third information.

[0316] Step S3305: Send a first signal according to the second information.

[0317] It should be noted that there is no order between step S3301 and step S3303. The first information may be received first and then the third information, or the third information may be received first and then the first information, or the first information and the third information may be received at the same time. There is no limitation to this.

[0318] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S3301 to step S3305. For example, step S3301 may be implemented as an independent embodiment, step S3302 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S3301+S3302 may be implemented as independent embodiments, but not limited thereto.

[0319] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0320] In some embodiments of the present disclosure, the first signal includes: a carrier CW.

[0321] In some embodiments of the present disclosure, the carrier wave CW includes: at least one single frequency non-modulated sine wave.

[0322] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0323] In some embodiments of the present disclosure, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

[0324] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0325] Sending start time;

[0326] Sending duration;

[0327] The number of transmissions of a single frequency non-modulated sine wave;

[0328] The transmit frequency corresponding to each single frequency non-modulated sine wave;

[0329] The total transmit power of the first signal.

[0330] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, and the first time is a time when the first information is received.

[0331] In some embodiments of the present disclosure, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0332] In some embodiments of the present disclosure, the third information includes at least one of the following:

[0333] Time offset, which is used to determine the start time of transmission;

[0334] first indication information, the first indication information indicating a reference starting time;

[0335] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0336] third indication information, where the third indication information indicates a reference duration;

[0337] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0338] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0339] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0340] Frequency domain offset, which is used to determine the transmission frequency of a single frequency non-modulated sine wave;

[0341] The total transmit power of the first signal.

[0342] In some embodiments of the present disclosure, the frequency type includes at least one of the following:

[0343] Maximum frequency;

[0344] Minimum frequency;

[0345] Center frequency.

[0346] In some embodiments of the present disclosure, determining the sending start time according to the third information includes any one of the following:

[0347] Taking the time with time offset relative to the reference time as the sending start time;

[0348] Taking the reference starting time as the sending starting time;

[0349] Based on the time interval, the sending start time is determined.

[0350] In some embodiments of the present disclosure, the reference time is determined based on any of the following:

[0351] time domain resource determination based on third information;

[0352] Determined based on system time.

[0353] In some embodiments of the present disclosure, determining the sending duration according to the third information includes any of the following:

[0354] The reference duration is used as the sending duration;

[0355] The duration between the sending start time and the time when the first information is received again is used as the sending duration;

[0356] The duration between two adjacent time intervals is taken as the sending duration.

[0357] In some embodiments of the present disclosure, determining the number and frequency of transmission of a single-frequency non-modulated sine wave according to the third information includes:

[0358] The reference number of the single frequency non-modulated sine wave is used as the transmitted number of the single frequency non-modulated sine wave;

[0359] The transmission frequency of the single-frequency non-modulated sine wave is determined based on the reference frequency and frequency type and frequency domain offset of at least one single-frequency non-modulated sine wave.

[0360] In some embodiments of the present disclosure, receiving third information includes:

[0361] Receive third information sent by the second device and / or the third device.

[0362] In some embodiments of the present disclosure, receiving first information includes:

[0363] Receive first information sent by the second device and / or the third device.

[0364] In some embodiments of the present disclosure, the third information is based on at least one of the following bearers:

[0365] Physical downlink control channel PDCCH;

[0366] Physical downlink shared channel PDSCH;

[0367] Media Access Control Element MAC CE;

[0368] Radio Resource Control (RRC) signaling message.

[0369] In some embodiments of the present disclosure, the first device includes at least one of the following:

[0370] Intermediate node terminal;

[0371] Access network equipment;

[0372] Terminal type carrier node.

[0373] In some embodiments of the present disclosure, the first information is based on at least one of the following bearers:

[0374] PDCCH;

[0375] PDSCH;

[0376] MAC CE;

[0377] RRC signaling message.

[0378] Figure 4A FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 4A As shown, the embodiment of the present disclosure relates to a signal sending method. The method is performed by a second device and / or a third device. The method includes:

[0379] Step S4101: Send first information, where the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0380] The signal sending method involved in the embodiment of the present disclosure may include step S4101. For example, step S4101 may be implemented as an independent embodiment, but is not limited thereto.

[0381] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0382] Figure 4B FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 4B As shown, the embodiment of the present disclosure relates to a signal sending method. The method is performed by a second device and / or a third device. The method includes:

[0383] Step S4201: Send first information, where the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0384] Step S4202: Send third information, where the third information is used by the first device to determine second information, and the second information is used to send a first signal.

[0385] It should be noted that there is no order between step S4201 and step S4202. The first information may be sent first and then the third information, or the third information may be sent first and then the first information, or the first information and the third information may be sent at the same time. There is no limitation to this.

[0386] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S4201 to step S4202. For example, step S4201 may be implemented as an independent embodiment, step S4202 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S4201+S4202 may be implemented as independent embodiments, but not limited thereto.

[0387] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0388] In some embodiments of the present disclosure, the first signal includes: a carrier CW.

[0389] In some embodiments of the present disclosure, the carrier wave CW includes: at least one single frequency non-modulated sine wave.

[0390] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0391] In some embodiments of the present disclosure, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

[0392] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0393] Sending start time;

[0394] Sending duration;

[0395] The number of transmissions of a single frequency non-modulated sine wave;

[0396] The transmit frequency corresponding to each single frequency unmodulated sine wave.

[0397] The total transmit power of the first signal.

[0398] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, and the first time is a time when the first information is received.

[0399] In some embodiments of the present disclosure, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0400] In some embodiments of the present disclosure, the third information includes at least one of the following:

[0401] Time offset, which is used to determine the start time of transmission;

[0402] first indication information, the first indication information indicating a reference starting time;

[0403] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0404] third indication information, where the third indication information indicates a reference duration;

[0405] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0406] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0407] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0408] Frequency domain offset,Frequency domain offset is used to determine the transmission frequency of a single frequency non-modulated sine wave.

[0409] The total transmit power of the first signal.

[0410] In some embodiments of the present disclosure, the frequency type includes at least one of the following:

[0411] Maximum frequency;

[0412] Minimum frequency;

[0413] Center frequency.

[0414] In some embodiments of the present disclosure, the third information is based on at least one of the following bearers:

[0415] Physical downlink control channel PDCCH;

[0416] Physical downlink shared channel PDSCH;

[0417] Media Access Control Element MAC CE;

[0418] Radio Resource Control (RRC) signaling message.

[0419] In some embodiments of the present disclosure, the second device includes: an access network device, and the third device includes: an intermediate node terminal.

[0420] In some embodiments of the present disclosure, the first information is based on at least one of the following bearers:

[0421] PDCCH;

[0422] PDSCH;

[0423] MAC CE;

[0424] RRC signaling message.

[0425] Figure 5 FIG. 1 is an interactive schematic diagram of a signal sending method according to another embodiment of the present disclosure. Figure 5 As shown, the embodiment of the present disclosure relates to a signal sending method. Executed by a communication system. The above method includes:

[0426] Step S5101: the second device and / or the third device sends first information.

[0427] Step S5102: The first device receives first information, and determines whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0428] The signal transmission method involved in the embodiment of the present disclosure may include at least one of step S5101 to step S5102. For example, step S5101 may be implemented as an independent embodiment, step S5102 may be implemented as an independent embodiment, and so on, but not limited thereto. Steps S5101+S5102 may be implemented as independent embodiments, but not limited thereto.

[0429] In this implementation mode or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.

[0430] The examples for the above embodiment are as follows:

[0431] In the following examples, the first device is taken as a carrier-wave node (CWN).

[0432] The present disclosure provides a solution in which a carrier node receives control information to trigger the carrier to send a carrier in an Ambient IoT system, and the solution is used for backscattering of an A-IoT device, including:

[0433] The network / base station or intermediate node UE sends indication information to the carrier node, and the carrier node determines the characteristics of the transmitted carrier according to the content of the indication information.

[0434] The carrier node controls the carrier node to start sending the carrier or stop sending the carrier according to the received indication information "start" or "stop".

[0435] Each time the carrier node receives the indication message "start", it sends a continuous carrier with a duration of T.

[0436] The indication information includes characteristics such as the starting point, duration, and frequency of the carrier transmission. The carrier node transmits the carrier according to these characteristics based on the received indication information.

[0437] Indication information / configuration information (used to configure the duration, frequency and other characteristics of carrier transmission), the trigger information indicates "start", and the carrier node sends the carrier according to the indication information / configuration information + trigger information.

[0438] The carrier node sends the carrier according to the indication information or configuration information.

[0439] The present disclosure provides a method in an Ambient IoT system, in which a carrier node receives control information triggering it to send a carrier CW, and the sent carrier CW is used for backscattering of an A-IoT device.

[0440] The control information (which may be an optional example of the first information and the third information mentioned above) may come from a network (e.g., a base station) or from a reader (a base station or an intermediate UE). The control information may include configuration information (an optional example of the third information) and / or trigger information (an optional example of the first information). The CWN determines the transmission characteristics of the CW (an optional example of the second information) according to the specific content of the received control information, which may include the starting point of the CW (an optional example of the start time of transmission), the time length (an optional example of the duration of transmission), the frequency (an optional example of the transmission frequency), etc.

[0441] Here is an example:

[0442] Solution A: The carrier node starts sending a carrier or stops sending a carrier according to the received information A1 (an optional example of the first information). (For example, the trigger information instructs the carrier node to start sending a carrier. The trigger information instructs the carrier node to stop sending a carrier).

[0443] Mode 1: Information A1 consists of 1 bit, and the bit position "1" or "0" corresponds to "start sending carrier" or "stop sending carrier" respectively.

[0444] The above-mentioned "1" or "0" may also correspond to "stop" or "start".

[0445] After receiving the "start" instruction, the carrier node starts to send the carrier continuously until it receives the "stop" instruction and stops sending the carrier.

[0446] Mode 2: The specific information of the information A1 is carried by a sequence, and the sequence carries "start sending carrier" or "stop sending carrier" correspondingly through changes.

[0447] A cyclic shift of -1 in the sequence corresponds to "start sending the carrier", and a cyclic shift of -2 in the sequence corresponds to "stop sending the carrier".

[0448] The above-mentioned sending method of "starting to send carrier wave" includes: continuously sending a single-frequency sine wave; or continuously sending two single-frequency sine waves; or continuously sending N (N>2) single-frequency sine waves.

[0449] The time offset Δt between the receiving time point of the information A1 (an optional example of the first moment) and the start time of transmitting the carrier (an optional example of the transmission start moment) is greater than or equal to 0.

[0450] The sending end of the above information A1 (an optional example of the second device and / or the third device) includes a base station and / or an intermediate node UE. The above information A1 is carried by PRDCH at the physical layer.

[0451] Plan B: is an extension of Plan A:

[0452] The carrier node does not send a carrier in normal state. After receiving the A1' instruction information (an optional example of the first information), it starts to send a continuous carrier for t microseconds / milliseconds / seconds, and then stops sending the carrier.

[0453] The A1' instruction information may be 1-bit information in method 1 of solution A, or carried by a sequence in method 2.

[0454] The above-mentioned sending method of "starting to send carrier wave" includes: continuously sending a single-frequency sine wave, or continuously sending two single-frequency sine waves, or continuously sending N (N>2) single-frequency sine waves.

[0455] The time offset Δt between the receiving time point of the information A1 ′ (an optional example of the first moment) and the start time of transmitting the carrier wave is greater than or equal to 0.

[0456] The sending end of the above A1' instruction information (an optional example of the second device and / or the third device) includes a base station and / or an intermediate node UE.

[0457] The difference between Solution B and Solution C is that the length of time for continuous carrier transmission is determined by the device (carrier node) transmitting the carrier in Solution B. It is determined according to the instruction of the network / intermediate node UE in Solution C.

[0458] The above information A1' is carried by PRDCH at the physical layer.

[0459] Solution C: The carrier node determines the behavior of starting to send the carrier (which can be represented by the second information) based on the received information A2 (an optional example of the third information). Information A2 is an information set. After the carrier node receives the information set A2, it determines the detailed behavior of sending the carrier based on the information contained in A2. The A2 information set includes at least one of the following information:

[0460] A2-1 information: carrier transmission time starting point: the carrier node determines the starting time point of carrier transmission according to the A2-1 information (an optional example of the transmission start time). The A2-1 information can be one of the following two indication methods:

[0461] Method 1: Indicating relative time: A2-1 indicates an offset, the offset value is a time offset value based on the time domain resource (such as time slot) of the A2 information, or the offset value is a time offset value based on the system time reference point T.

[0462] Method 2: Indicating absolute time: A2-1 indicates an absolute time value. The carrier node determines the start time of carrier transmission based on the local clock combined with the absolute time indicated by A2-1, or the carrier node determines the start time of carrier transmission based on the externally acquired clock combined with the absolute time indicated by A2-1.

[0463] A2-2 information: carrier transmission duration (an optional example of transmission duration): after the carrier node starts transmitting the carrier, it continuously transmits a sine wave in time. The continuous transmission duration is determined by the value of A2-2, which can be x microseconds / milliseconds / seconds.

[0464] A2-3 Information: Frequency of transmitting carrier (an optional example of transmitting frequency): indicates that the frequency characteristic of the carrier transmitted by the carrier node can be a single-frequency sine wave (i.e., a single-frequency non-modulated sine wave), or 2 or more single-frequency sine waves.

[0465] Single frequency sine wave: indicates that the frequency of the sine wave sent by the carrier node is Y Hz (Hertz) / kHz (Kilohertz) / MHz (Megahertz).

[0466] 2 single-frequency sine waves: Indicates that the carrier node sends 2 sine waves. The frequencies of the two sine waves are Y1 Hz / kHz / MHz and Y2 Hz / kHz / MHz, and Y1 and Y2 are not equal.

[0467] Another indication method: indicating that the frequency of the sine wave sent by the carrier node is Y Hz / kHz / MHz, and indicating a frequency domain offset Δf at the same time, then the frequency of the second sine wave is Y+Δf Hz / kHz / MHz or Y-Δf Hz / kHz / MHz.

[0468] N single-frequency sine waves: indicates that the carrier node sends N sine waves (a positive integer where N>2), where the frequencies of the N sine waves are Y1, Y2, Y3, …, YN Hz / kHz / MHz.

[0469] Another indication method: when the lowest frequency of the sine wave sent by the carrier node is indicated to be Y Hz / kHz / MHz, and a frequency offset Δf is indicated at the same time, the remaining N-1 frequency points are Y+Δf, Y+2Δf, Y+3Δf, …, Y+(N-1)*Δf; or when the highest frequency of the sine wave sent by the carrier node is indicated to be Y Hz / kHz / MHz, the remaining N-1 frequency points are Y-Δf, Y-2Δf, Y-3Δf, …, Y-(N-1)*Δf Hz / kHz / MHz; or when the center frequency of the sine wave sent by the carrier node is indicated to be Y Hz / kHz / MHz, the remaining N-1 frequency points are Y±Δf, …, and so on.

[0470] A2-4 information: time interval for sending carrier: indicates the time interval between two adjacent carrier transmissions by the carrier node (e.g. t microseconds / milliseconds / seconds). No carrier is transmitted during the interval.

[0471] The sending end of the above information A2 includes a base station and / or an intermediate node UE. The above information A2 is carried by PRDCH at the physical layer.

[0472] Solution D: The carrier node obtains a series of characteristics of the transmitted carrier according to the received configuration information set A3 (an optional example of the third information). When the carrier node subsequently receives the trigger information A3-5 (an optional example of the first information), the carrier node transmits the carrier according to the characteristics specified by the configuration information set A3. (The carrier node determines the carrier characteristics according to the configuration information (an optional example of the third information) and starts to transmit the carrier only after receiving the trigger information (an optional example of the first information))

[0473] Send the carrier according to the configuration information set + trigger information.

[0474] The carrier node receives the configuration information set A3 and determines the characteristics and behavior of the transmitting carrier according to the information contained in A3. The configuration information set A3 includes at least one of the following information:

[0475] A3-1 information: carrier transmission time starting point: similar to A2-1.

[0476] A3-2 Information: Carrier transmission duration: similar to A2-2.

[0477] A3-3 Information: Frequency of transmitting carrier: Similar to A2-3.

[0478] A3-4 information: time interval for sending carrier wave: similar to A2-4.

[0479] After receiving the configuration information set A3, the carrier node does not send the carrier but waits for the trigger information. The carrier node sends the carrier only after receiving the trigger information A3-5.

[0480] The above configuration information set A3 comes from the configuration of the network, or from the configuration of the intermediate node UE.

[0481] Base station side: Configuration information can be carried by high-level Radio Resource Control (RRC) signaling or Media Access Control Control Element (MACCE), and the physical layer is carried by Physical Downlink Shared Channel (PDSCH) or PRDCH; trigger information can be carried by Physical Downlink Control Channel (PDCCH) (ie, Downlink Control Information (DCI)) or PRDCH.

[0482] UE side: Configuration information can be carried through high-level RRC signaling or MACCE, and the physical layer can be carried through the PRDCH channel; trigger information can be carried through the PRDCH.

[0483] The trigger information A3-5 comes from a base station or an intermediate node UE.

[0484] Solution E: The carrier node obtains a series of characteristics of the transmitted carrier according to the received information A4 (an optional example of the second information), and the carrier node transmits the carrier according to the characteristics specified by the information A4. (The carrier node determines the carrier characteristics according to the configuration information, including when the node starts / stops transmitting the carrier, etc.)

[0485] The carrier is sent according to the configuration information set.

[0486] The carrier node receives the configuration information set A4 and determines the characteristics and behavior of the transmission carrier according to the information contained in A4. The information set A4 includes at least one of the following information.

[0487] A4-1 information: carrier transmission time starting point: similar to A2-1.

[0488] A4-2 Information: Carrier transmission duration: similar to A2-2.

[0489] A4-3 Information: Frequency of transmitting carrier: Similar to A2-3.

[0490] A4-4 information: time interval for sending carrier wave: similar to A2-4.

[0491] The above configuration information set A4 comes from the configuration of the network, or from the configuration of the intermediate node UE. The above information A4 is carried by PRDCH at the physical layer.

[0492] Embodiment 1:

[0493] The reader sends configuration information (an optional example of the third information) and / or trigger information (an optional example of the first information) to the carrier node CW node (CWN):

[0494] like Fig. 6A , Fig. 6A It is a schematic diagram of topology structure 1 in an embodiment of the present disclosure. In topology structure 1, the base station acts as a reader to send configuration information and / or trigger information to a CW node (CWN).

[0495] like Figure 6B , Figure 6B It is a schematic diagram of topology structure 2 in an embodiment of the present disclosure. In topology structure 2, the intermediate UE acts as a reader and sends configuration information and / or trigger information to the CWN.

[0496] like Figure 6C , Figure 6C It is a schematic diagram of topology structure 2 in another embodiment of the present disclosure. In topology structure 2, the base station sends configuration information and / or trigger information to the CWN.

[0497] like Fig.6D , Fig.6D It is a schematic diagram of topology structure 2 in another embodiment of the present disclosure. In topology structure 2, the base station sends configuration information to the CWN, and the intermediate UE acts as a reader to send trigger information to the CWN.

[0498] Above Figure 6A-6D The trigger carrier transmission timing is shown.

[0499] The CWN starts sending the carrier at a certain time according to the specific content in the received configuration information and / or trigger information. After the device receives the carrier sent from the outside, it modulates the data information to be sent onto the carrier and then performs backscatter. The intermediate node UE acts as a reader to receive the information sent by the device (i.e., D2R link).

[0500] Embodiment 2:

[0501] Corresponding plan A.

[0502] For example, 6E, Fig. 6EIt is an application diagram in an embodiment of the present disclosure, showing the start / stop of carrier transmission according to indication information. The carrier node receives the indication information (an optional example of the first information), the content of the indication information is "start", and the carrier node starts to continuously transmit the carrier after waiting for a time length offset after receiving the indication information; the carrier node receives another indication information instructing it to stop transmitting the carrier, and the carrier node immediately stops transmitting the carrier or waits for a time length offset-1 after receiving the indication "stop" information before stopping transmitting the carrier.

[0503] The above offset and offset-1 can be configured or indicated to the carrier node by the network side / base station side or the intermediate node UE side; or the offset and offset-1 are determined by the carrier node according to its own implementation. When the offset and offset-1 are 0, the carrier node starts to send or stops sending the carrier immediately after receiving the indication information.

[0504] The sending of the above indication information "start" / "stop" is carried by PDCCH or PRDCH at the physical layer.

[0505] Embodiment 3:

[0506] Corresponding plan B.

[0507] like Fig. 6F , Fig. 6F 1 is an application diagram of another embodiment of the present disclosure, showing that a carrier with a fixed duration is continuously transmitted according to the indication information. After receiving the indication information, the carrier node waits for a time length of offset before starting to transmit the carrier, continuously transmits for a time length of T, and then stops transmitting the carrier.

[0508] The continuous duration T of sending the above-mentioned carrier wave may be configured by the network or the intermediate node UE, or determined by the carrier node according to implementation.

[0509] The definition and usage of the above offset are the same as those in Example 2.

[0510] The sending of the above indication information ("start") is carried by PDCCH or PRDCH at the physical layer.

[0511] Embodiment 4:

[0512] Corresponding plan C.

[0513] like Figure 6G , Figure 6G is an application schematic diagram of another embodiment of the present disclosure, Figure 6G The carrier node receives the trigger / indication information, which is an information set including at least one of the following information:

[0514] The specific value of Offset.

[0515] Continuous sending duration T.

[0516] Single frequency sine wave, or 2 single frequency sine waves, or multiple single frequency sine waves.

[0517] The frequency at which the carrier is transmitted.

[0518] The carrier node determines the start time, transmission length, frequency and other transmission characteristics of the carrier according to the above information, and starts to transmit the carrier at the transmission time.

[0519] The above trigger / indication information is sent by the network / base station or intermediate node UE and is carried by PRDCH or PDCCH / PDSCH at the physical layer.

[0520] The above offset refers to Example 2.

[0521] Embodiment 5:

[0522] Corresponding embodiment D.

[0523] like Figure 6H , Figure 6H 2 is an application diagram of another embodiment of the present disclosure, showing the characteristics of determining carrier transmission according to configuration information and trigger information. The carrier node receives configuration information, which is an information set including at least one of the following information:

[0524] The specific value of Offset.

[0525] Continuous sending duration T.

[0526] Single frequency sine wave, or 2 single frequency sine waves, or multiple single frequency sine waves.

[0527] The frequency at which the carrier is transmitted.

[0528] The carrier node obtains multiple transmission characteristics of the transmission carrier such as transmission length and frequency according to the above information. After receiving the trigger information, the carrier node starts to transmit the carrier immediately after waiting for the offset time or (offset=0).

[0529] The above configuration information and trigger information are sent by the network / base station or intermediate node UE, and are carried by PRDCH or PDSCH at the physical layer; the above trigger information is sent by the base station or intermediate node UE.

[0530] The above offset refers to Example 2.

[0531] Embodiment 6:

[0532] Corresponding plan E.

[0533] like Fig.6I , Fig.6I 2 is an application diagram of another embodiment of the present disclosure, showing the characteristics of carrier transmission determined according to configuration information. The carrier node receives the configuration information, which is an information set including at least one of the following information:

[0534] The specific value of Offset.

[0535] Continuous sending duration T.

[0536] Single frequency sine wave, or 2 single frequency sine waves, or multiple single frequency sine waves.

[0537] The frequency at which the carrier is transmitted.

[0538] The carrier node determines the start time, transmission length, frequency and other transmission characteristics of the carrier according to the above information, and starts to transmit the carrier at the transmission time.

[0539] The above configuration information is sent by the network / base station or intermediate node UE and is carried by PRDCH or PDSCH at the physical layer.

[0540] The above offset refers to Example 2.

[0541] Fig. 7A is a schematic diagram of the structure of the first device proposed in the embodiment of the present disclosure. Fig. 7A As shown, the first device 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. The first device 7100 may include:

[0542] The transceiver module 7101 is used to receive first information and determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

[0543] In some embodiments of the present disclosure, the first signal includes: a carrier CW.

[0544] In some embodiments of the present disclosure, the carrier wave CW includes: at least one single frequency non-modulated sine wave.

[0545] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0546] In some embodiments of the present disclosure, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

[0547] In some embodiments of the present disclosure,

[0548] The processing module 7102 is used to determine the second information;

[0549] The transceiver module 7101 is used to send a first signal according to the second information.

[0550] In some embodiments of the present disclosure,

[0551] The transceiver module 7101 is used to receive third information;

[0552] A processing module 7102, configured to determine second information according to third information;

[0553] The transceiver module 7101 is used to send a first signal according to the second information.

[0554] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0555] Sending start time;

[0556] Sending duration;

[0557] The number of transmissions of a single frequency non-modulated sine wave;

[0558] The transmit frequency corresponding to each single frequency non-modulated sine wave;

[0559] The total transmit power of the first signal.

[0560] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, and the first time is a time when the first information is received.

[0561] In some embodiments of the present disclosure, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0562] In some embodiments of the present disclosure, the third information includes at least one of the following:

[0563] Time offset, which is used to determine the start time of transmission;

[0564] first indication information, the first indication information indicating a reference starting time;

[0565] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0566] third indication information, where the third indication information indicates a reference duration;

[0567] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0568] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0569] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0570] Frequency domain offset, which is used to determine the transmission frequency of a single frequency non-modulated sine wave;

[0571] The total transmit power of the first signal.

[0572] In some embodiments of the present disclosure, the frequency type includes at least one of the following:

[0573] Maximum frequency;

[0574] Minimum frequency;

[0575] Center frequency.

[0576] In some embodiments of the present disclosure, the processing module 7102 is configured to perform any of the following:

[0577] Taking the time with time offset relative to the reference time as the sending start time;

[0578] Taking the reference starting time as the sending starting time;

[0579] Based on the time interval, the sending start time is determined.

[0580] In some embodiments of the present disclosure, the reference time is determined based on any of the following:

[0581] time domain resource determination based on third information;

[0582] Determined based on system time.

[0583] In some embodiments of the present disclosure, the processing module 7102 is configured to perform any of the following:

[0584] The reference duration is used as the sending duration;

[0585] The duration between the sending start time and the time when the first information is received again is used as the sending duration;

[0586] The duration between two adjacent time intervals is taken as the sending duration.

[0587] In some embodiments of the present disclosure, the processing module 7102 is used to execute:

[0588] The reference number of the single frequency non-modulated sine wave is used as the transmitted number of the single frequency non-modulated sine wave;

[0589] The transmission frequency of the single-frequency non-modulated sine wave is determined based on the reference frequency and frequency type and frequency domain offset of at least one single-frequency non-modulated sine wave.

[0590] In some embodiments of the present disclosure, the transceiver module 7101 is used to receive third information sent by the second device and / or the third device.

[0591] In some embodiments of the present disclosure, the transceiver module 7101 is used to receive first information sent by the second device and / or the third device.

[0592] In some embodiments of the present disclosure, the third information is based on at least one of the following bearers:

[0593] Physical downlink control channel PDCCH;

[0594] Physical downlink shared channel PDSCH;

[0595] Media Access Control Element MAC CE;

[0596] Radio Resource Control RRC signaling message.

[0597] In some embodiments of the present disclosure, the first device includes at least one of the following:

[0598] Intermediate node terminal;

[0599] Access network equipment;

[0600] Terminal type carrier node.

[0601] In some embodiments of the present disclosure, the first information is based on at least one of the following bearers:

[0602] PDCCH;

[0603] PDSCH;

[0604] MAC CE;

[0605] RRC signaling message.

[0606] Figure 7B is a schematic diagram of the structure of the second device or the third device proposed in the embodiment of the present disclosure. Figure 7B As shown, the second device or the third device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. Among them, the second device or the third device 7200 may include:

[0607] The transceiver module 7201 is used to send first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

[0608] In some embodiments of the present disclosure, the first signal includes: a carrier CW.

[0609] In some embodiments of the present disclosure, the carrier wave CW includes: at least one single frequency non-modulated sine wave.

[0610] In some embodiments of the present disclosure, the first information includes a first value or a second value, wherein the first value is used to indicate sending the first signal, and the second value is used to indicate not sending the first signal.

[0611] In some embodiments of the present disclosure, the first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

[0612] In some embodiments of the present disclosure, the transceiver module 7201 is used to send third information, wherein the third information is used by the first device to determine second information, and the second information is used to send the first signal.

[0613] In some embodiments of the present disclosure, the second information includes at least one of the following:

[0614] Sending start time;

[0615] Sending duration;

[0616] The number of transmissions of a single frequency non-modulated sine wave;

[0617] The transmit frequency corresponding to each single frequency unmodulated sine wave.

[0618] The total transmit power of the first signal.

[0619] In some embodiments of the present disclosure, a time offset of the sending start time relative to a first time is greater than or equal to 0, and the first time is a time when the first information is received.

[0620] In some embodiments of the present disclosure, the transmission frequencies of different single-frequency non-modulated sinusoidal waves are different.

[0621] In some embodiments of the present disclosure, the third information includes at least one of the following:

[0622] Time offset, which is used to determine the start time of transmission;

[0623] first indication information, the first indication information indicating a reference starting time;

[0624] second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal;

[0625] third indication information, where the third indication information indicates a reference duration;

[0626] fourth indication information, the fourth indication information indicating that the first signal is continuously sent before the first information is received again, and the first information received again is used to trigger stopping of sending the first signal;

[0627] fifth indication information, the fifth indication information indicating a reference number of single-frequency non-modulated sine waves;

[0628] Sixth indication information, the sixth indication information indicating a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave;

[0629] Frequency domain offset,Frequency domain offset is used to determine the transmission frequency of a single frequency non-modulated sine wave.

[0630] The total transmit power of the first signal.

[0631] In some embodiments of the present disclosure, the frequency type includes at least one of the following:

[0632] Maximum frequency;

[0633] Minimum frequency;

[0634] Center frequency.

[0635] In some embodiments of the present disclosure, the third information is based on at least one of the following bearers:

[0636] Physical downlink control channel PDCCH;

[0637] Physical downlink shared channel PDSCH;

[0638] Media Access Control Element MAC CE;

[0639] Radio Resource Control (RRC) signaling message.

[0640] In some embodiments of the present disclosure, the second device includes: an access network device, and the third device includes: an intermediate node terminal.

[0641] In some embodiments of the present disclosure, the first information is based on at least one of the following bearers:

[0642] PDCCH;

[0643] PDSCH;

[0644] MAC CE;

[0645] RRC signaling message.

[0646] In some embodiments, the transceiver module may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0647] In some embodiments, the processing module can be a module or include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be replaced with the processor.

[0648] It should be understood that the division of the units or modules in the above device is only a division of logical functions, and in actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above hardware circuits can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above hardware circuit can be realized by a programmable logic device (PLD), taking a field programmable gate array (FPGA) as an example, which 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 realize the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of a processor calling software, or in the form of a hardware circuit, or in part by a processor calling software, and the rest by a hardware circuit.

[0649] In the disclosed embodiment, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP), etc.; in another implementation, the processor may implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the processor loads a configuration document to implement the process of hardware circuit configuration, which may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it may also be a hardware circuit designed for artificial intelligence, which may be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0650] Fig. 8A 8100 is a schematic diagram of the structure of the communication device proposed in the embodiment of the present disclosure. The communication device 8100 may be a terminal, or a chip, a chip system, or a processor that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

[0651] like Fig. 8A As shown, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process program data. The communication device 8100 is used to perform any of the above methods.

[0652] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memory 8102 may also be outside the communication device 8100.

[0653] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs other steps.

[0654] In some embodiments, the transceiver may include a receiver and / or a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

[0655] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 may be used to receive signals from the memory 8102 or other devices, and may be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0656] The communication device 8100 described in the above embodiments may be a terminal or a network device or a third entity, 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 may not be limited thereto. Fig. 8A The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0657] Figure 8B 8100 is a schematic diagram of the structure of the chip proposed in the embodiment of the present disclosure. For the case where the communication device 8100 can be a chip or a chip system, please refer to Figure 8B The structure diagram of the chip 8200 is shown, but is not limited to this.

[0658] The chip 8200 includes one or more processors 8201, and the chip 8200 is used to execute any of the above methods.

[0659] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0660] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs other steps.

[0661] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0662] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memory 8203 may be outside the chip 8200.

[0663] The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

[0664] The present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods. Optionally, the program product is a computer program product.

[0665] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

[0666] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0667] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0668] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0669] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A signal sending method, characterized in that: The method is performed by a first device; the method includes: receiving a first message; Determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

2. The method according to claim 1, characterized in that The first signal includes: a carrier CW.

3. The method according to claim 2, characterized in that The carrier wave CW includes: at least one single frequency non-modulated sine wave.

4. The method according to any one of claims 1 to 3, characterized in that: The first information includes a first value or a second value, wherein the first value is used to indicate that the first signal is sent, and the second value is used to indicate that the first signal is not sent.

5. The method according to any one of claims 1 to 3, characterized in that: The first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: determining second information; Send the first signal according to the second information.

7. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: receiving third information; determining the second information according to the third information; Send the first signal according to the second information.

8. The method according to any one of claims 6 to 7, characterized in that: The second information includes at least one of the following: Sending start time; Sending duration; The number of transmissions of a single frequency non-modulated sine wave; a transmission frequency corresponding to each of the single frequency non-modulated sine waves; The total transmit power of the first signal.

9. The method according to claim 8, characterized in that The time offset of the sending start time relative to the first time is greater than or equal to 0, and the first time is the time of receiving the first information.

10. The method according to any one of claims 8 to 9, characterized in that: The transmission frequencies of different single frequency non-modulated sine waves are different.

11. The method according to any one of claims 7 to 10, characterized in that: The third information includes at least one of the following: A time offset, wherein the time offset is used to determine a start time of transmission; first indication information, wherein the first indication information indicates a reference starting time; second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal; third indication information, wherein the third indication information indicates a reference duration; fourth indication information, wherein the fourth indication information indicates to continue to send the first signal before receiving the first information again, and the first information received again is used to trigger stopping sending the first signal; fifth indication information, wherein the fifth indication information indicates a reference number of single-frequency non-modulated sine waves; Sixth indication information, wherein the sixth indication information indicates a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave; A frequency domain offset, wherein the frequency domain offset is used to determine the transmission frequency of a single frequency non-modulated sine wave; The total transmit power of the first signal.

12. The method according to claim 11, characterized in that The frequency type includes at least one of the following: Maximum frequency; Minimum frequency; Center frequency.

13. The method according to any one of claims 11 to 12, characterized in that: Determining the sending start time according to the third information includes any one of the following: Taking a time having a time offset relative to a reference time as the sending start time; Taking the reference starting time as the sending starting time; Based on the time interval, the sending start time is determined.

14. The method according to claim 13, characterized in that The reference time is determined based on any of the following: time domain resource determination based on the third information; Determined based on system time.

15. The method according to any one of claims 11 to 14, characterized in that: Determining the sending duration according to the third information includes any one of the following: Using the reference duration as the sending duration; The duration between the sending start time and the time of receiving the first information again is used as the sending duration; The duration between two adjacent time intervals is used as the sending duration.

16. The method according to any one of claims 11 to 15, characterized in that: Determining the number and frequency of sending the single-frequency non-modulated sine wave according to the third information includes: Using the reference number of the single-frequency non-modulated sine wave as the number of the single-frequency non-modulated sine wave to be sent; Based on the reference frequency and frequency type of the at least one single-frequency non-modulated sine wave and the frequency domain offset, a transmission frequency of the single-frequency non-modulated sine wave is determined.

17. The method according to any one of claims 7 to 16, characterized in that: The receiving of the third information comprises: Receive third information sent by the second device and / or the third device.

18. The method according to any one of claims 1 to 17, characterized in that: The receiving of the first information comprises: Receive first information sent by the second device and / or the third device.

19. The method according to any one of claims 7 to 18, characterized in that: The third information is based on at least one of the following bearers: Physical downlink control channel PDCCH; Physical downlink shared channel PDSCH; Media Access Control Element MAC CE; Radio Resource Control RRC signaling message.

20. The method according to any one of claims 1 to 19, characterized in that The first device includes at least one of the following: Intermediate node terminal; Access network equipment; Terminal type carrier node.

21. The method according to any one of claims 1 to 20, characterized in that The first information is based on at least one of the following bearers: PDCCH; PDSCH; MAC CE; RRC signaling message.

22. A signal sending method, characterized in that: The method is performed by the second device and / or the third device; the method includes: Sending first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

23. The method of claim 22, wherein: The first signal includes: a carrier CW.

24. The method of claim 23, wherein: The carrier wave CW includes: at least one single frequency non-modulated sine wave.

25. The method according to any one of claims 22 to 24, characterized in that The first information includes a first value or a second value, wherein the first value is used to indicate that the first signal is sent, and the second value is used to indicate that the first signal is not sent.

26. The method according to any one of claims 22 to 24, characterized in that The first information includes a sequence, and the sequence has a first cyclic shift or a second cyclic shift, wherein the first cyclic shift is used to indicate that the first signal is sent, and the second cyclic shift is used to indicate that the first signal is not sent.

27. The method according to any one of claims 22 to 26, characterized in that The method further comprises: Send third information, wherein the third information is used by the first device to determine second information, and the second information is used to send the first signal.

28. The method of claim 27, wherein: The second information includes at least one of the following: Sending start time; Sending duration; The number of transmissions of a single frequency non-modulated sine wave; The transmission frequency corresponding to each of the single frequency non-modulated sine waves. The total transmit power of the first signal.

29. The method of claim 28, wherein: The time offset of the sending start time relative to the first time is greater than or equal to 0, and the first time is the time of receiving the first information.

30. The method according to any one of claims 28 to 29, characterized in that The transmission frequencies of different single frequency non-modulated sine waves are different.

31. The method according to any one of claims 27 to 30, characterized in that The third information includes at least one of the following: A time offset, wherein the time offset is used to determine a start time of transmission; first indication information, wherein the first indication information indicates a reference starting time; second indication information, where the second indication information indicates a time interval between two adjacent sending of the first signal; third indication information, wherein the third indication information indicates a reference duration; fourth indication information, wherein the fourth indication information indicates to continue to send the first signal before receiving the first information again, and the first information received again is used to trigger stopping sending the first signal; fifth indication information, wherein the fifth indication information indicates a reference number of single-frequency non-modulated sine waves; Sixth indication information, wherein the sixth indication information indicates a reference frequency and a frequency type of at least one single-frequency non-modulated sine wave; A frequency domain offset, wherein the frequency domain offset is used to determine the transmission frequency of a single frequency non-modulated sine wave. The total transmit power of the first signal.

32. The method of claim 31, wherein: The frequency type includes at least one of the following: Maximum frequency; Minimum frequency; Center frequency.

33. The method according to any one of claims 27 to 32, characterized in that The third information is based on at least one of the following bearers: Physical downlink control channel PDCCH; Physical downlink shared channel PDSCH; Media Access Control Element MAC CE; Radio Resource Control RRC signaling message.

34. The method according to any one of claims 22 to 33, characterized in that The second device includes: an access network device, and the third device includes: an intermediate node terminal.

35. The method according to any one of claims 22 to 34, characterized in that The first information is based on at least one of the following bearers: PDCCH; PDSCH; MAC CE; RRC signaling message.

36. A signal sending method, characterized in that: The method comprises: The second device and / or the third device sends the first information; The first device receives the first information, and determines whether to send a first signal according to the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

37. A first device, characterized in that: The first device comprises: The transceiver module is used to receive first information and determine whether to send a first signal based on the first information, wherein the first signal is used for charging and / or carrying information and / or backscattering.

38. A second device or a third device, characterized in that: The second device or the third device includes: The transceiver module is used to send first information, wherein the first information is used by the first device to determine whether to send a first signal, and the first signal is used for charging and / or carrying information and / or backscattering.

39. A communication device, characterized in that: include: one or more processors; The processor is used to execute the signal sending method described in any one of claims 1-36.

40. 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 signal sending method according to any one of claims 1 to 36.

41. A computer program product, characterized in that The invention comprises a computer program, which implements the communication method according to any one of claims 1 to 36 when executed by a processor.

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