Signal processing method, first node, network device and first device

Abstract

The present disclosure relates to the technical field of communications. Provided are a signal processing method, a first node, a network device and a first device. The method comprises: a first node receiving first signaling sent by a network device, wherein the first signaling carries resource configuration information of first signals and / or waveform information of the first signals; and the first node sending at least one first signal on the basis of the first signaling, wherein the first signal is configured to trigger a first device to modulate and reflect a signal and / or trigger the first device to send or receive the signal.

Description

Signal processing method, first node, network device and first device

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on February 8, 2024, with application number 202410177748.2 and application name “Signal processing method, first node, network device and first device”, the entire content of which is incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to a signal processing method, a first node, a network device, and a first device. Background Art

[0003] In current and future communications, there's a growing trend toward using low-complexity, low-cost, and low-power devices to implement various application scenarios. These devices, such as Ambient IoT (A-IoT) devices and passive or passive devices, are characterized by low complexity, low cost, and low power consumption. However, these low-complexity, low-cost, and low-power devices often have limited or no power supply. Considering supporting the network to send signals to these devices, and considering that the low power consumption, low complexity, and lack of or limited power supply of these devices may limit their communication distance in certain scenarios, the use of intermediate node communication for data transmission is also being considered. However, currently, there are no specific solutions for designing and transmitting signals between the network or node side and IoT devices, passive or passive devices, and so on. Summary of the Invention

[0004] The present disclosure provides a signal processing method, a first node, a network device, and a first device, which solves the problem that there is no specific solution for how to design and transmit signals on the network side or the node side and the Internet of Things devices or passive devices or the like.

[0005] An embodiment of the present disclosure provides a signal processing method, including:

[0006] The first node receives a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal;

[0007] The first node sends at least one first signal according to the first signaling; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0008] In some embodiments, the resource configuration information is used to indicate at least one of the following:

[0009] a first signal sending resource corresponding to the first node;

[0010] a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes;

[0011] a first signal sending resource corresponding to the first node group to which the first node belongs;

[0012] a first signal sending resource corresponding to at least one first node associated with the network device.

[0013] In some embodiments, when the first node does not expect the network device to configure first signal transmission resources for multiple first nodes, partial overlap or collision occurs between the first signal transmission resources corresponding to the multiple first nodes;

[0014] or,

[0015] When the first node does not expect the network device to configure first signal sending resources for the first node group to which the first node belongs, the first signal sending resources corresponding to the first nodes in the first node group partially overlap or collide.

[0016] In some embodiments, the first node includes at least one of the following:

[0017] Intermediate nodes;

[0018] Carrier waveform sending node.

[0019] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0020] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0021] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0022] In some embodiments, the first signal includes at least one of the following:

[0023] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0024] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0025] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0026] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0027] identification information of the carrier waveform signal;

[0028] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0029] In some embodiments, the interval information includes at least one of the following:

[0030] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0031] the length of the interval;

[0032] the type of the first device;

[0033] Interval identification information.

[0034] In some embodiments, the first node sends at least one first signal according to the first signaling, including:

[0035] The first node sends at least one of the query signals or the downlink indication signal on a second sending resource after sending at least one of the carrier waveform signals on a first sending resource according to the first signaling;

[0036] or,

[0037] The first node sends at least one of the query signals or the downlink indication signal on the second sending resource according to the first signaling, and then sends at least one of the carrier waveform signals on the first sending resource.

[0038] In some embodiments, the first node does not expect a partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device.

[0039] In some embodiments, sending the resource includes at least one of:

[0040] Time domain resources;

[0041] Frequency domain resources;

[0042] airspace resources;

[0043] Code domain resources.

[0044] In some embodiments, after the first node sends at least one first signal according to the first signaling, the method further includes:

[0045] The first node receives a second signal from the first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

[0046] In some embodiments, the resource configuration information includes at least one of the following:

[0047] identification information of the first node;

[0048] identification information of the first node group;

[0049] Time domain resource configuration information;

[0050] Frequency domain resource configuration information;

[0051] Airspace resource configuration information;

[0052] Code domain resource configuration information;

[0053] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0054] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0055] The spatial resource configuration information includes at least one of the following: Quasi Co-location (QCL) information, and description information of a transmission spatial direction angle of a transmission beam;

[0056] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0057] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol.

[0058] In some embodiments, the waveform information includes at least one of the following:

[0059] Single tone waveform;

[0060] Frequency division multiplexing single tone waveform;

[0061] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0062] In some embodiments, the first signaling includes at least one of the following:

[0063] Radio Resource Control (RRC) signaling;

[0064] Medium Access Control Control Element (MAC CE);

[0065] Physical layer dynamic signaling;

[0066] Group common signaling.

[0067] In some embodiments, the first device includes at least one of the following:

[0068] IoT devices;

[0069] Passive devices;

[0070] Passive device.

[0071] The present disclosure provides a signal processing method, including:

[0072] The network device sends a first signaling to at least one first node, or the network device sends at least one first signal;

[0073] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0074] In some embodiments, the network device sends a first signaling to at least one first node, including at least one of the following:

[0075] The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node;

[0076] The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes;

[0077] The network device jointly sends a first signaling to at least one first node belonging to a first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal sending resource corresponding to the first node group;

[0078] The network device jointly sends a first signaling to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate first signal sending resources corresponding to the multiple first nodes associated with the network device.

[0079] In some embodiments, the network device sends the first signaling to each first node of the at least one first node respectively, including:

[0080] The network device sends the first signaling to each first node belonging to the first node group respectively;

[0081] or,

[0082] The network device sends the first signaling to each first node of the associated multiple first nodes respectively.

[0083] In some embodiments, when the network device configures first signal transmission resources for multiple first nodes, the first signal transmission resources corresponding to the multiple first nodes do not partially overlap or collide with each other;

[0084] or,

[0085] When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

[0086] In some embodiments, the first node includes at least one of the following:

[0087] Intermediate nodes;

[0088] Carrier waveform sending node.

[0089] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0090] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0091] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0092] In some embodiments, the first signal includes at least one of the following:

[0093] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0094] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0095] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0096] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0097] identification information of the carrier waveform signal;

[0098] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0099] In some embodiments, the interval information includes at least one of the following:

[0100] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0101] the length of the interval;

[0102] the type of the first device;

[0103] Interval identification information.

[0104] In some embodiments, the first transmission resource and the second transmission resource configured by the network device for the at least one first node do not partially overlap or collide;

[0105] The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

[0106] In some embodiments, the resource configuration information includes at least one of the following:

[0107] identification information of the first node;

[0108] identification information of the first node group;

[0109] Time domain resource configuration information;

[0110] Frequency domain resource configuration information;

[0111] Airspace resource configuration information;

[0112] Code domain resource configuration information;

[0113] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0114] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0115] The spatial resource configuration information includes at least one of the following: QCL information, description information of the transmission spatial direction angle of the transmission beam;

[0116] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0117] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol;

[0118] or,

[0119] When the network device sends at least one first signal, waveform information of the first signal is agreed upon by a protocol.

[0120] In some embodiments, the waveform information includes at least one of the following:

[0121] Single tone waveform;

[0122] Frequency division multiplexing single tone waveform;

[0123] OFDM waveform.

[0124] In some embodiments, the first signaling includes at least one of the following:

[0125] RRC signaling;

[0126] MAC CE;

[0127] Physical layer dynamic signaling;

[0128] Group common signaling.

[0129] In some embodiments, the network device sends at least one first signal including at least one of the following:

[0130] The network device sends a first signal on at least one sending resource;

[0131] The network device sends a first signal on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

[0132] In some embodiments, sending the resource includes at least one of:

[0133] Time domain resources;

[0134] Frequency domain resources;

[0135] airspace resources;

[0136] Code domain resources.

[0137] The present disclosure provides a signal processing method, characterized by comprising:

[0138] The first device receives a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0139] The first device triggers uplink transmission or modulates and reflects a second signal according to the first signal; wherein the second signal is a signal modulated and reflected based on the first signal.

[0140] In some embodiments, the first signal includes at least one of the following:

[0141] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0142] The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

[0143] In some embodiments, the first device modulates and reflects a second signal according to the first signal, including:

[0144] After receiving the query signal or the downlink indication signal, the first device modulates and reflects the carrier waveform signal received after the first interval.

[0145] In some embodiments, after the first device receives the first signal sent by the first node or network device, the device further includes:

[0146] After receiving the query signal or the downlink indication signal, the first device does not modulate and reflects the carrier waveform signal received within the first interval.

[0147] In some embodiments, the first interval is agreed upon by a protocol;

[0148] or,

[0149] The first interval is indicated in the query signal or the downlink indication signal.

[0150] In some embodiments, the granularity of the first interval is symbols or time slots or microseconds.

[0151] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0152] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0153] identification information of the carrier waveform signal;

[0154] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0155] In some embodiments, the interval information includes at least one of the following:

[0156] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0157] the length of the interval;

[0158] the type of the first device;

[0159] Interval identification information.

[0160] An embodiment of the present disclosure provides a first node, including a memory, a transceiver, and a processor;

[0161] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0162] Receiving a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal;

[0163] According to the first signaling, at least one first signal is sent; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0164] In some embodiments, the resource configuration information is used to indicate at least one of the following:

[0165] a first signal sending resource corresponding to the first node;

[0166] a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes;

[0167] a first signal sending resource corresponding to the first node group to which the first node belongs;

[0168] a first signal sending resource corresponding to at least one first node associated with the network device.

[0169] In some embodiments, when the first node does not expect the network device to configure first signal transmission resources for multiple first nodes, partial overlap or collision occurs between the first signal transmission resources corresponding to the multiple first nodes;

[0170] or,

[0171] When the first node does not expect the network device to configure first signal sending resources for the first node group to which the first node belongs, the first signal sending resources corresponding to the first nodes in the first node group partially overlap or collide.

[0172] In some embodiments, the first node includes at least one of the following:

[0173] Intermediate nodes;

[0174] Carrier waveform sending node.

[0175] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0176] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0177] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0178] In some embodiments, the first signal includes at least one of the following:

[0179] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0180] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0181] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0182] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0183] identification information of the carrier waveform signal;

[0184] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0185] In some embodiments, the interval information includes at least one of the following:

[0186] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0187] the length of the interval;

[0188] the type of the first device;

[0189] Interval identification information.

[0190] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0191] After sending at least one of the carrier waveform signals on the first transmission resource according to the first signaling, sending at least one of the query signal or the downlink indication signal on the second transmission resource;

[0192] or,

[0193] According to the first signaling, after sending at least one of the query signal or the downlink indication signal on the second sending resource, at least one of the carrier waveform signals is sent on the first sending resource.

[0194] In some embodiments, the first node does not expect a partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device.

[0195] In some embodiments, sending the resource includes at least one of:

[0196] Time domain resources;

[0197] Frequency domain resources;

[0198] airspace resources;

[0199] Code domain resources.

[0200] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0201] A second signal is received from a first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

[0202] In some embodiments, the resource configuration information includes at least one of the following:

[0203] identification information of the first node;

[0204] identification information of the first node group;

[0205] Time domain resource configuration information;

[0206] Frequency domain resource configuration information;

[0207] Airspace resource configuration information;

[0208] Code domain resource configuration information;

[0209] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0210] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0211] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0212] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0213] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol.

[0214] In some embodiments, the waveform information includes at least one of the following:

[0215] Single tone waveform;

[0216] Frequency division multiplexing single tone waveform;

[0217] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0218] In some embodiments, the first signaling includes at least one of the following:

[0219] Radio Resource Control (RRC) signaling;

[0220] Media Access Control Element MAC CE;

[0221] Physical layer dynamic signaling;

[0222] Group common signaling.

[0223] In some embodiments, the first device includes at least one of the following:

[0224] IoT devices;

[0225] Passive devices;

[0226] Passive device.

[0227] An embodiment of the present disclosure provides a first node, including:

[0228] A first receiving unit is configured to receive a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal;

[0229] A sending unit is used to send at least one first signal according to the first signaling; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0230] An embodiment of the present disclosure provides a network device, including a memory, a transceiver, and a processor;

[0231] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0232] Sending first signaling to at least one first node, or sending at least one first signal;

[0233] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0234] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0235] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node;

[0236] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes;

[0237] jointly sending a first signaling to at least one first node belonging to a first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal sending resource corresponding to the first node group;

[0238] A first signaling is jointly sent to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate the first signal sending resources corresponding to the multiple first nodes associated with the network device.

[0239] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0240] Sending the first signaling to each first node belonging to the first node group respectively;

[0241] or,

[0242] The first signaling is sent to each first node among the associated multiple first nodes respectively.

[0243] In some embodiments, when the network device configures first signal transmission resources for multiple first nodes, the first signal transmission resources corresponding to the multiple first nodes do not partially overlap or collide with each other;

[0244] or,

[0245] When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

[0246] In some embodiments, the first node includes at least one of the following:

[0247] Intermediate nodes;

[0248] Carrier waveform sending node.

[0249] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0250] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0251] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0252] In some embodiments, the first signal includes at least one of the following:

[0253] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0254] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0255] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0256] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0257] identification information of the carrier waveform signal;

[0258] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0259] In some embodiments, the interval information includes at least one of the following:

[0260] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0261] the length of the interval;

[0262] the type of the first device;

[0263] Interval identification information.

[0264] In some embodiments, the first transmission resource and the second transmission resource configured by the network device for the at least one first node do not partially overlap or collide;

[0265] The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

[0266] In some embodiments, the resource configuration information includes at least one of the following:

[0267] identification information of the first node;

[0268] identification information of the first node group;

[0269] Time domain resource configuration information;

[0270] Frequency domain resource configuration information;

[0271] Airspace resource configuration information;

[0272] Code domain resource configuration information;

[0273] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0274] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0275] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0276] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0277] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol;

[0278] or,

[0279] When the network device sends at least one first signal, waveform information of the first signal is agreed upon by a protocol.

[0280] In some embodiments, the waveform information includes at least one of the following:

[0281] Single tone waveform;

[0282] Frequency division multiplexing single tone waveform;

[0283] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0284] In some embodiments, the first signaling includes at least one of the following:

[0285] Radio Resource Control (RRC) signaling;

[0286] Media Access Control Element MAC CE;

[0287] Physical layer dynamic signaling;

[0288] Group common signaling.

[0289] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0290] transmitting a first signal on at least one transmission resource;

[0291] A first signal is sent on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

[0292] In some embodiments, sending the resource includes at least one of:

[0293] Time domain resources;

[0294] Frequency domain resources;

[0295] airspace resources;

[0296] Code domain resources.

[0297] An embodiment of the present disclosure provides a network device, including:

[0298] a sending unit, configured to send a first signaling to at least one first node, or the network device sends at least one first signal;

[0299] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0300] An embodiment of the present disclosure provides a first device, including a memory, a transceiver, and a processor;

[0301] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0302] Receiving a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0303] According to the first signal, uplink transmission is triggered or a second signal is modulated and reflected; wherein the second signal is a signal modulated and reflected based on the first signal.

[0304] In some embodiments, the first signal includes at least one of the following:

[0305] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0306] The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

[0307] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0308] After receiving the query signal or the downlink indication signal, the carrier waveform signal received after the first interval is modulated and reflected.

[0309] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0310] After receiving the query signal or the downlink indication signal, the carrier waveform signal received in the first interval is not modulated and reflected.

[0311] In some embodiments, the first interval is agreed upon by a protocol;

[0312] or,

[0313] The first interval is indicated in the query signal or the downlink indication signal.

[0314] In some embodiments, the granularity of the first interval is symbols or time slots or microseconds.

[0315] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0316] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0317] identification information of the carrier waveform signal;

[0318] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0319] In some embodiments, the interval information includes at least one of the following:

[0320] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0321] the length of the interval;

[0322] the type of the first device;

[0323] Interval identification information.

[0324] An embodiment of the present disclosure provides a first device, including:

[0325] A receiving unit, configured to receive a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0326] A processing unit is used to trigger uplink transmission or modulate and reflect a second signal according to the first signal; wherein the second signal is a signal modulated and reflected based on the first signal.

[0327] An embodiment of the present disclosure provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the signal processing method described above.

[0328] An embodiment of the present disclosure provides a computer program product, including computer instructions, which implement the steps of the signal processing method described above when executed by a processor.

[0329] The beneficial effects of the above technical solution disclosed in the present invention are:

[0330] In an embodiment of the present disclosure, a first node receives a first signaling sent by a network device, and sends at least one first signal based on the resource configuration information of the first signal and / or the waveform information of the first signal carried in the first signaling, so as to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal, thereby realizing signal transmission between the first node side and the first device, and solving the current problem that there is no specific solution for how to design and transmit signals between the node side and the Internet of Things device or passive device or passive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0331] Figure 1 shows a schematic diagram of the topology of a base station sending an incident signal to an A-IoT device;

[0332] FIG2 is a schematic diagram showing a topological structure in which a base station sends an incident signal through an intermediate node;

[0333] FIG3 is a flowchart of a signal processing method at a first node side according to an embodiment of the present disclosure;

[0334] FIG4 is a flowchart showing a signal processing method on a network device side according to an embodiment of the present disclosure;

[0335] FIG5 is a flowchart showing a signal processing method on a first device side according to an embodiment of the present disclosure;

[0336] FIG6 shows one of the schematic diagrams of time domain resource configuration according to an embodiment of the present disclosure;

[0337] FIG7 shows a second schematic diagram of time domain resource configuration according to an embodiment of the present disclosure;

[0338] FIG8 is a schematic diagram showing frequency domain resource configuration according to an embodiment of the present disclosure;

[0339] FIG9 is a schematic diagram showing airspace resource configuration according to an embodiment of the present disclosure;

[0340] FIG10 is a schematic diagram showing an embodiment of the present disclosure configuring intervals;

[0341] FIG11 shows one block diagram of a first node according to an embodiment of the present disclosure;

[0342] FIG12 shows a second block diagram of the first node according to an embodiment of the present disclosure;

[0343] FIG13 shows a block diagram of a network device according to an embodiment of the present disclosure;

[0344] FIG14 shows a second block diagram of a network device according to an embodiment of the present disclosure;

[0345] FIG15 shows one of the block diagrams of the first device according to an embodiment of the present disclosure;

[0346] FIG16 shows a second block diagram of the first device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0347] To make the technical problems, technical solutions, and advantages to be solved by the present disclosure more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present disclosure. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for the sake of clarity and brevity, descriptions of known functions and configurations have been omitted.

[0348] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present disclosure. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0349] In the various embodiments of the present disclosure, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

[0350] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0351] The technical solutions provided by the embodiments of the present disclosure can be applicable to a variety of systems, such as the fifth generation mobile communication technology (5th-Generation, 5G) system, the sixth generation mobile communication technology (6th-Generation, 6G) system, etc. For example, the applicable systems can be the global system of mobile communication (GSM) system, the code division multiple access (CDMA) system, the wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, the long term evolution (LTE) system, the LTE frequency division duplex (FDD) system, the LTE time division duplex (TDD) system, the advanced long term evolution (LTE-A) system, the universal mobile telecommunication system (UMTS), the world-wide interoperability for microwave access (WiMAX) system, the 5G new air interface (NR) system, the 6G system, etc. These various systems all include terminal devices and network devices. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), 6G System, etc.

[0352] The network device and the first node can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also be diversity transmission, precoded transmission, or beamforming transmission.

[0353] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0354] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0355] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0356] The following is an introduction to the relevant technologies involved in this disclosure:

[0357] Ambient IoT (Ambient IoT) devices are low-complexity, low-cost, and low-power low-end IoT devices. A-IoT devices include three types: Type A, Type B, and Type C. Type A and B A-IoT devices lack batteries or have limited power supplies. They cannot actively transmit or receive signals and can only backscatter received signals, carrying information in the backscattered signals. Type A and B A-IoT devices cannot independently generate signals and can only reflect incident signals (the incident signal is the received signal from the perspective of the A-IoT device), or what is known as a carrier waveform (CW) signal. Type C A-IoT devices can actively transmit signals. It should be noted that Type A and B A-IoT devices do not support Subscriber Identity Module (SIM) cards and may have global electronic tags, making them not suitable for standard terminals.

[0358] For A-IoT systems, A-IoT devices of device types A and B are passive IoT devices with energy harvesting capabilities, for example, with energy consumption of 1μW-10μW. A-IoT devices of device types A and B cannot independently generate uplink or reverse signals to be transmitted from the device to a base station or relay receiving node (Reader). The A-IoT device generates a reverse (or backscattered) signal by reflecting and modulating the incident signal, also known as the excitation signal or CW signal, which is received by the base station or relay node.

[0359] The above-mentioned backscattered signal can be called an uplink signal (i.e., a signal from the perspective of the A-IoT device), or a reverse signal (i.e., a signal from the perspective of the base station or relay node). As shown in Figure 1, a topological structure diagram of a base station sending an incident signal to an A-IoT device is given. The A-IoT device reflects the incident signal to the base station. The reflected signal carries modulated information, such as the identification (ID) information of the A-IoT device. As shown in Figure 2, a topological structure diagram of a base station sending an incident signal through an intermediate node is given. That is, the outdoor base station transmits data to the indoor intermediate node using the Uu port (i.e., air port) with the intermediate node. The indoor intermediate node sends an incident signal to the A-IoT device. The A-IoT device reflects and modulates the incident signal. The indoor intermediate node receives the A-IoT reflected signal carrying the above-mentioned information.

[0360] In practice, for example, an Electronic Toll Collection (ETC) system on a highway has an incoming signal transmitter. Vehicles equipped with backscattering devices reflect and modulate the incoming signal, carrying payment information in the backscattered signal. The backscattering device's ability to reflect signals stems from the incoming signal and its ability to adjust the system load and reflect the signal. Different system loads correspond to different reflected or absorbed energy, different reflected energy levels, or different spectrum and phases of the reflected signal. The backscattering system utilizes the different characteristics of the reflected signal to carry information, for example, a high level reflected signal represents a "1" and a low level represents a "0."

[0361] For A-IoT devices based on backscatter, the ability to transmit information to a base station or intermediate node requires an incident signal, which can also be called a CW signal, excitation signal, continuous signal, or radio frequency (RF) source signal. For the sake of convenience, these signals will be collectively referred to as CW signals. Its basic characteristics are: based on the incident CW signal, the A-IoT device reflects and modulates the CW signal to generate an uplink or reverse signal received by a reader (such as a base station or intermediate node). The CW signal is provided to the A-IoT device by an external device (i.e., an external device for the A-IoT device) for uplink data transmission, rather than generating a carrier internally like a terminal (User Equipment, UE) or base station. For example, the carrier is generated by its own local oscillator.

[0362] For transmission types such as device-originated–device-terminated triggered (DO-DTT) and device-terminated (DT), such as rUC1, i.e., indoor inventory, rUC4, i.e., indoor command, and other scenarios, there is device termination, i.e., the downlink indication signaling from the base station or intermediate node to the device node is terminated, i.e., device-terminated triggered signaling. Therefore, it is considered that there needs to be a downlink or forward indication signal (or called a query signal, inquiry signal, etc.) to trigger the device to send, receive, or reflect a signal, for example, to query the shelf life expiration information of the goods in the warehouse, etc. Of course, the embodiments of the present disclosure are not limited to this. At the same time, it is considered that the CW signal is a continuously transmitted single-tone signal, such as a sine wave / cosine wave. However, CW signals are continuous signals, and passive A-IoT devices, due to their simple structure and lack of receive filters, can cause co-channel interference with base stations or intermediate nodes, or affect device-terminated triggered signaling. Furthermore, CW signals have a decisive impact on device reflection performance. Currently, there are no specific solutions for the design or transmission of device-terminated triggered signaling or CW signals.

[0363] The embodiments of the present disclosure provide a signal processing method, a first node, a network device, and a first device to solve the problem that there is currently no specific solution for how to design and transmit signals on the network side or the node side, and between the Internet of Things device or a passive device or a passive device. Among them, the method and the first node (or network device or terminal) are based on the same application concept. Since the principles of solving the problem by the method and the first node (or network device or terminal) are similar, the implementation of the method and the first node (or network device or terminal) can refer to each other, and the repeated parts will not be repeated.

[0364] As shown in FIG3 , an embodiment of the present disclosure provides a signal processing method, comprising the following steps:

[0365] Step 31: The first node receives a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal.

[0366] In some embodiments, the first node includes at least one of the following: an intermediate node, a carrier waveform sending node (or referred to as a CW sending node). For example, the intermediate node can be a terminal (UE), such as a dedicated terminal that supports the first signal transmission of A-IoT, or other intermediate nodes that are fixed or mobile and are not UEs; the CW sending node can be other intermediate nodes that are fixed or mobile and are not UEs, or another CW sending node that is different from the above intermediate nodes, for example, the CW sending node is co-located with the UE but separated. It should be noted here that the first node in the embodiments of the present disclosure is the same as the above embodiments unless otherwise stated, and subsequent repetitions will not be repeated.

[0367] In some embodiments, the first signaling carries resource configuration information of the first signal, that is, the network device can configure the transmission resources for the first node to send the first signal. The resource configuration information includes at least one of the following: time domain resource configuration information, frequency domain resource configuration information, spatial domain resource configuration information, and code domain resource configuration information. Accordingly, the transmission resources include but are not limited to at least one of the following: time domain resources, frequency domain resources, spatial domain resources, and code domain resources. It should be noted here that the resource configuration information, transmission resources, etc. in the embodiments of the present disclosure are the same as those in the above embodiments unless otherwise stated, and subsequent repetitions will not be repeated.

[0368] For example, when the first signaling carries resource configuration information for the first signal but does not carry waveform information for the first signal, the waveform information for the first signal may be based on a protocol agreement. Alternatively, the network device may carry waveform information for the first signal in the second signaling sent to the first node. In other words, the network device may configure the transmission resources for the first signal and indicate the waveform information for the first signal through different signalings, respectively. The embodiments of the present disclosure are not limited to this.

[0369] In some embodiments, the first signaling carries waveform information of the first signal. For example, when the first signaling carries the waveform information of the first signal but does not carry the resource configuration information of the first signal, the network device may carry the resource configuration information of the first signal in the second signaling sent to the first node. In other words, the network device may configure the transmission resources of the first signal and indicate the waveform information of the first signal through different signalings, respectively. The embodiments of the present disclosure are not limited to this.

[0370] In some embodiments, the first signaling carries resource configuration information of the first signal and waveform information of the first signal, that is, the network device can configure the sending resources for the first node to send the first signal and indicate the waveform information of the first signal in one signaling.

[0371] In some embodiments, the waveform information includes at least one of the following: a single-tone waveform, a frequency-division multiplexing single-tone waveform (FDM-single tone waveform), and an OFDM waveform. For example, when the first signal is a CW signal, the CW signal includes one or more single-tone signals, or a frequency-division multiplexing single-tone signal, or a multi-tone signal, or an OFDM signal. The single-tone signal has only one frequency point, for example, a sine wave; the multiple single-tone signals or frequency-division multiplexing single-tone signals or multi-tone signals are composed of multiple single-tone signals with different frequencies, for example, multiple sine waves with different frequencies. For example, in one or some embodiments, the CW signal sent by the network device and the first node includes one or more single-tone signals, or a frequency-division multiplexing single-tone signal, or a multi-tone signal, etc.; or, the protocol stipulates that the CW signal sent by the network device is a single-tone signal, and the CW signal sent by the first node includes at least one single-tone signal, such as a frequency-division multiplexing single-tone signal, or a multi-tone signal, etc. The embodiments of the present disclosure are not limited to this.

[0372] Step 32: The first node sends at least one first signal according to the first signaling; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0373] In some embodiments, the first node sends one or more first signals including at least one of the following:

[0374] The first node sends a first signal on at least one transmission resource;

[0375] The first node sends a first signal on at least one group of sending resources; wherein different first nodes are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one first node.

[0376] For example, the at least one sending resource or at least one group of sending resources may be configured or indicated by a network device, or may be at least one or at least one group of sending resources agreed upon by a protocol, etc. The embodiments of the present disclosure are not limited thereto.

[0377] In some embodiments, the first signal includes at least one of the following:

[0378] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0379] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0380] In some embodiments, the first device includes at least one of the following: an Internet of Things device (such as an A-IoT device), a passive device, a passive device, etc. It should be noted that the first device in the embodiments of the present disclosure is the same as that in the above embodiments unless otherwise stated, and the subsequent repeated parts will not be repeated.

[0381] In the above scheme, the first node receives the first signaling sent by the network device, and sends at least one first signal according to the resource configuration information of the first signal and / or the waveform information of the first signal carried in the first signaling, so as to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal, thereby realizing signal transmission between the first node side and the first device, solving the current problem that there is no specific solution for how to design and transmit signals between the node side and the Internet of Things device or passive device or passive device.

[0382] In some embodiments, after the first node sends at least one first signal according to the first signaling, the method further includes:

[0383] The first node receives a second signal from the first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

[0384] For example: after the first node sends at least one CW signal, the first device modulates and reflects a second signal based on the CW signal, and the first node receives the second signal. Alternatively, in the case where the first device supports sending signals, the second signal may also be actively triggered by the first device after receiving the first signal sent by the first node. For example: the first node sends a first signal to trigger the first device to send or receive a signal, and the first device sends the second signal after receiving the first signal, etc. The embodiments of the present disclosure are not limited to this.

[0385] In some embodiments, the first signaling includes at least one of the following: RRC signaling, MAC CE, physical layer dynamic signaling, and group common signaling.

[0386] In some embodiments, the resource configuration information is used to indicate at least one of the following:

[0387] a first signal sending resource corresponding to the first node;

[0388] a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes;

[0389] a first signal sending resource corresponding to the first node group to which the first node belongs;

[0390] a first signal sending resource corresponding to at least one first node associated with the network device.

[0391] For example, in the case where the resource configuration information is used to indicate the first signal sending resources corresponding to the first node, the network device can configure the first signal sending resources for one or more first nodes, and configure the first signal sending resources separately for different first nodes. For example, the network device can send first signaling to different first nodes respectively to configure the first signal sending resources of the first node. In some embodiments, when the first node does not expect the network device to configure the first signal sending resources for multiple first nodes, the first signal sending resources corresponding to each of the multiple first nodes partially overlap (overlapping) or collide; that is, when the network device configures the first signal sending resources for multiple first nodes, it is necessary to configure the first signal sending resources corresponding to each of the multiple first nodes so that there is no partial overlap or collision.

[0392] For example, in the case where the resource configuration information is used to indicate the first signal transmission resources corresponding to the first node and the first signal transmission resources corresponding to other first nodes, the network device can configure the transmission resources of the first signal for one or more first nodes, and at the same time notify other first nodes (such as interfering nodes) of the first signal transmission resources. For example, the network device can send first signaling to different first nodes respectively to configure the first signal transmission resources of the first node. In some embodiments, when the first node does not expect the network device to configure the transmission resources of the first signal for multiple first nodes, the first signal transmission resources corresponding to each of the multiple first nodes partially overlap or collide. Alternatively, it is not necessary to stipulate whether the first signal transmission resources corresponding to each of the multiple first nodes partially overlap or collide. For example, when the network device configures the transmission resources of the first signal for multiple first nodes, it can configure the first signal transmission resources corresponding to each of the multiple first nodes not to partially overlap or collide, or it can configure the first signal transmission resources corresponding to each of the multiple first nodes to partially overlap or collide. Instead, the first node side performs interference elimination based on its own transmission resources and the transmission resources of other first nodes, etc. The specific implementation depends on the first node side, and the embodiments of the present disclosure are not specifically limited.

[0393] For example, in the case where the resource configuration information is used to indicate the first signal transmission resources corresponding to the first node group to which the first node belongs, the network device may divide at least one first node into at least one node group, and configure the first signal transmission resources for each node group, or separately configure the first signal transmission resources for each first node in the node group. For example, the network device may send a common first signaling (such as group common signaling, or signaling sent in a multicast manner, etc.) to each first node in the first node group to configure the first signal transmission resources of the first node group; or it may send a first signaling to each first node in the first node group to configure the first signal transmission resources of each first node in the first node group. In some embodiments, when the first node does not expect the network device to configure the first signal transmission resources for the first node group to which the first node belongs, the first signal transmission resources corresponding to each first node in the first node group partially overlap or collide; that is, when the network device configures the first signal transmission resources for the first node group or each first node in the first node group, it needs to configure the first signal transmission resources corresponding to each first node in the first node group so that there is no partial overlap or collision.

[0394] For example, in the case where the resource configuration information is used to indicate the first signal transmission resource corresponding to at least one first node associated with the network device, the network device may not need to group the at least one first node, but of course it may also group them, and the embodiment of the present disclosure does not impose specific restrictions. For example, the network device may send a common first signaling (such as group common signaling, or signaling sent in a multicast manner, etc.) to each first node in the at least one first node associated with it to configure the first signal transmission resource of each first node in the at least one first node associated with it; or it may send a first signaling to each first node in the at least one first node associated with it separately to configure the first signal transmission resource of each first node in the at least one first node associated with it. In some embodiments, when the first node does not expect the network device to configure the transmission resource of the first signal for the at least one first node associated with it, the first signal transmission resources corresponding to each first node in the at least one first node partially overlap or collide; that is, when the network device configures the transmission resource of the first signal for the at least one first node associated with it or each first node in the at least one first node, it is necessary to configure the first signal transmission resources corresponding to each first node in the at least one first node so that there is no partial overlap or collision.

[0395] In some embodiments, the resource configuration information includes at least one of the following:

[0396] identification information of the first node;

[0397] identification information of the first node group;

[0398] Time domain resource configuration information;

[0399] Frequency domain resource configuration information;

[0400] Airspace resource configuration information;

[0401] Code domain resource configuration information;

[0402] The time domain resource configuration information includes at least one of the following: at least one sending starting point information (such as one starting point or multiple starting points), at least one sending time length or duration (such as one time length or duration, or multiple time lengths or durations), the number of sending times, the maximum sending time length and the sending cycle;

[0403] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0404] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0405] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code, identification information of a quasi-orthogonal code. For example, a protocol predefines a set of orthogonal codes or a set of quasi-orthogonal codes. The code domain resource configuration information may be identification or index information of a set of orthogonal codes, or identification information of a set of quasi-orthogonal codes.

[0406] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0407] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0408] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0409] For example, a network device can configure N carrier waveform transmitting nodes for M intermediate nodes, and jointly or individually configure first signal transmission resources for each carrier waveform transmitting node (similar to the embodiment of configuring first signal transmission resources for the first node in the above embodiment, and will not be repeated here). For example, the network device can configure N carrier waveform transmitting nodes for M intermediate nodes, that is, these N carrier waveform transmitting nodes are associated with the M intermediate nodes, for example, a carrier waveform transmitting node is associated with at least one of the M intermediate nodes. Alternatively, the network device divides the intermediate nodes into at least one group: subgroup 1 (subgroup_1), subgroup 2 (subgroup_2), ..., subgroup K (subgroup_K), each subgroup being associated with at least one carrier waveform transmitting node, that is, the carrier waveform transmitting node is associated with the first node group; the network device can configure a carrier waveform transmitting node for each subgroup and / or configure the same first signal transmission resources for each subgroup. The carrier waveform transmitting node transmits at least one first signal on at least one transmission resource in accordance with the instructions of the network device. For example, if the first signal is a CW signal, the first device can reflect and modulate the CW signal transmitted on the at least one transmission resource.

[0410] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0411] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0412] identification information of the carrier waveform signal;

[0413] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0414] For example, the first node may indicate the transmission resources of the CW signal or the identification information of the CW signal through a query signal or a downlink indication signal. For example, the first node may explicitly indicate the transmission resources of the CW signal (such as the first indication information) using a query signal or a downlink indication signal; or the first node may implicitly indicate the transmission resources of the CW signal (such as the identification information of the CW signal) using a query signal or a downlink indication signal. For example, the protocol predefines a group of CW signals, each CW signal is associated with different frequency domain resources, and the first node indicates the identification information of the CW signal through a query signal or a downlink indication signal, thereby implicitly indicating the transmission resources of the CW signal.

[0415] For example, when the first node indicates the interval information between the query signal or the downlink indication signal and the carrier waveform signal in the query signal or the downlink indication signal, after receiving the query signal or the downlink indication signal, the first device does not modulate and reflect the CW signal received within the first interval corresponding to the interval information, or modulates and reflects the CW signal received after the first interval corresponding to the interval information.

[0416] In some embodiments, when the query signal or the downlink signal does not include indication interval information, the interval between the query signal or the downlink indication signal and the carrier waveform signal may also be agreed upon by a protocol.

[0417] In some embodiments, the granularity of the interval between the query signal or the downlink indication signal and the carrier waveform signal is a symbol, a time slot, or microseconds.

[0418] In some embodiments, the interval information includes at least one of the following:

[0419] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0420] the length of the interval;

[0421] The type of the first device; for example, the type of the first device may indicate the capability of the first device, and different device capabilities may correspond to different interval time lengths, so that the type of the first device may implicitly indicate the time length of the interval.

[0422] Identification information of the interval; for example, the length of the interval is predefined by the protocol (such as the correspondence between the identification information of the interval and the time length of the interval). By indicating the identification information of an interval (i.e., the gap identifier) ​​through a query signal or a downlink indication signal, the time length or duration of the interval can be implicitly indicated.

[0423] In some embodiments, the first node sends at least one first signal according to the first signaling, including:

[0424] The first node sends at least one of the query signals or the downlink indication signal on a second sending resource after sending at least one of the carrier waveform signals on a first sending resource according to the first signaling;

[0425] or,

[0426] The first node sends at least one of the query signals or the downlink indication signal on the second sending resource according to the first signaling, and then sends at least one of the carrier waveform signals on the first sending resource.

[0427] In some embodiments, the first node does not expect a partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device.

[0428] For example, the first device does not expect to receive the query signal or the downlink indication signal on the transmission resource of the CW signal; or the first device does not expect to receive the CW signal on the transmission resource of the query signal or the downlink indication signal. Therefore, the network device should ensure that the transmission resource of the CW signal and the query signal or the downlink indication signal does not partially overlap or collide.

[0429] As shown in FIG4 , an embodiment of the present disclosure provides a signal processing method, comprising the following steps:

[0430] Step 41: The network device sends a first signaling to at least one first node, or the network device sends at least one first signal;

[0431] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0432] In some embodiments, the network device sends a first signaling to at least one first node, including at least one of the following:

[0433] The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node;

[0434] The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes;

[0435] The network device jointly sends a first signaling (such as a signaling sent by group common signaling or multicast) to at least one first node belonging to the first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal transmission resource corresponding to the first node group;

[0436] The network device jointly sends a first signaling (such as group common signaling or signaling sent in a multicast manner, etc.) to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate the first signal sending resources corresponding to the multiple first nodes associated with the network device.

[0437] In some embodiments, the network device sends the first signaling to each first node of the at least one first node respectively, including:

[0438] The network device sends the first signaling to each first node belonging to the first node group respectively;

[0439] or,

[0440] The network device sends the first signaling to each first node of the associated multiple first nodes respectively.

[0441] In some embodiments, when the network device configures first signal transmission resources for multiple first nodes, the first signal transmission resources corresponding to the multiple first nodes do not partially overlap or collide with each other;

[0442] or,

[0443] When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

[0444] In some embodiments, the first node includes at least one of the following:

[0445] Intermediate nodes;

[0446] Carrier waveform sending node.

[0447] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0448] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0449] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0450] In some embodiments, the first signal includes at least one of the following:

[0451] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0452] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0453] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0454] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0455] identification information of the carrier waveform signal;

[0456] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0457] For example, a network device may indicate the transmission resources of a CW signal or the identification information of a CW signal through a query signal or a downlink indication signal. For example, a network device may explicitly indicate the transmission resources of a CW signal (such as the first indication information) using a query signal or a downlink indication signal; or a network device may implicitly indicate the transmission resources of a CW signal (such as the identification information of a CW signal) using a query signal or a downlink indication signal. For example, a protocol predefines a group of CW signals, each CW signal being associated with different frequency domain resources. The network device indicates the identification information of the CW signal through a query signal or a downlink indication signal, thereby implicitly indicating the transmission resources of the CW signal.

[0458] For example, when the network device indicates the interval information between the query signal or the downlink indication signal and the carrier waveform signal in the query signal or the downlink indication signal, after receiving the query signal or the downlink indication signal, the first device does not modulate and reflect the CW signal received within the first interval corresponding to the interval information, or modulates and reflects the CW signal received after the first interval corresponding to the interval information.

[0459] In some embodiments, the interval information includes at least one of the following:

[0460] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0461] the length of the interval;

[0462] the type of the first device;

[0463] Interval identification information.

[0464] In some embodiments, the first transmission resource and the second transmission resource configured by the network device for the at least one first node do not partially overlap or collide;

[0465] The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

[0466] In some embodiments, the resource configuration information includes at least one of the following:

[0467] identification information of the first node;

[0468] identification information of the first node group;

[0469] Time domain resource configuration information;

[0470] Frequency domain resource configuration information;

[0471] Airspace resource configuration information;

[0472] Code domain resource configuration information;

[0473] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0474] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0475] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0476] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0477] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by the protocol, that is, the network device configures the transmission resources of the first signal for at least one first node, and the waveform information of the first signal is agreed upon by the protocol. Alternatively, when the network device sends at least one first signal, the waveform information of the first signal is agreed upon by the protocol, that is, the network device sends at least one first signal based on the first signal waveform agreed upon by the protocol.

[0478] In some embodiments, the waveform information includes at least one of the following:

[0479] Single tone waveform;

[0480] Frequency division multiplexing single tone waveform;

[0481] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0482] In some embodiments, the first signaling includes at least one of the following:

[0483] Radio Resource Control (RRC) signaling;

[0484] Media Access Control Element MAC CE;

[0485] Physical layer dynamic signaling;

[0486] Group common signaling.

[0487] In some embodiments, the network device sends at least one first signal including at least one of the following:

[0488] The network device sends a first signal on at least one sending resource;

[0489] The network device sends a first signal on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

[0490] For example, the at least one first transmission resource may be at least one transmission resource agreed upon in a protocol, and the at least one group of transmission resources may be at least one group of transmission resources agreed upon in a protocol. Taking frequency domain transmission resources as an example, the optional transmission spectrum of the first signal is located in the uplink spectrum of a frequency division duplex (FDD) spectrum.

[0491] In some embodiments, sending the resource includes at least one of:

[0492] Time domain resources;

[0493] Frequency domain resources;

[0494] airspace resources;

[0495] Code domain resources.

[0496] It should be noted that the scheme for the network device to send the first signaling to at least one first node in the embodiment of the present disclosure corresponds to the method embodiment of the first node side mentioned above. The two embodiments can refer to each other and can achieve the same technical effect, which will not be repeated here. In addition, the method for the network device to send the first signal to the first device is similar to the method for the first node side to send the first signal to the first device mentioned above. The difference is that the network device can determine the waveform information and / or sending resources of the first signal based on a predefined method of the protocol, and send at least one first signal. The two embodiments can refer to each other and can achieve the same technical effect, which will not be repeated here.

[0497] As shown in FIG5 , an embodiment of the present disclosure provides a signal processing method, comprising the following steps:

[0498] Step 51: A first device receives a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0499] Step 52: The first device triggers uplink transmission or modulates and reflects a second signal according to the first signal; wherein the second signal is a signal modulated and reflected based on the first signal.

[0500] In some embodiments, the first signal includes at least one of the following:

[0501] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0502] The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

[0503] For example, when the first device receives a carrier waveform signal, it can modulate and reflect the carrier waveform signal. For example, when the first device receives a query signal or a downlink indication signal, it can trigger the transmission of the second signal, or it can also trigger the first device to modulate and reflect the carrier waveform signal after receiving the carrier waveform signal.

[0504] In some embodiments, the first device modulates and reflects a second signal according to the first signal, including:

[0505] After receiving the query signal or the downlink indication signal, the first device modulates and reflects the carrier waveform signal received after the first interval.

[0506] In some embodiments, after the first device receives the first signal sent by the first node or network device, the device further includes:

[0507] After receiving the query signal or the downlink indication signal, the first device does not modulate and reflects the carrier waveform signal received within the first interval.

[0508] In some embodiments, the first interval is agreed upon by a protocol;

[0509] or,

[0510] The first interval is indicated in the query signal or the downlink indication signal.

[0511] It should be noted that the first interval refers to the interval between the query signal or the downlink indication signal and the carrier waveform signal. For example, the interval information indicated in the query signal or the downlink indication signal is an explicit or implicit indication of the interval between the query signal or the downlink indication signal and the carrier waveform signal (or called the first interval).

[0512] In some embodiments, the granularity of the first interval is symbols or time slots or microseconds.

[0513] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0514] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0515] identification information of the carrier waveform signal;

[0516] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0517] In some embodiments, the interval information includes at least one of the following:

[0518] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0519] the length of the interval;

[0520] the type of the first device;

[0521] Interval identification information.

[0522] It should be noted that the signal processing method on the first device side in the embodiment of the present disclosure corresponds to the method embodiment on the first node side and / or network device side mentioned above. The embodiments can refer to each other and can achieve the same technical effect, so they will not be repeated here.

[0523] The terminal involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal may be called User Equipment (UE). A wireless terminal can send or receive signals with one or more core networks (CN) via a radio access network (RAN). A wireless terminal may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0524] The network device involved in the embodiments of the present disclosure may be a base station, or may be a carrier waveform sending node. For example, when the first signal is sent on the network device side, the first signal may be sent by the base station or may be sent by the carrier waveform sending node, etc. The base station may include multiple cells that provide services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the next generation system, a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0525] The following describes the interaction process of the signal transmission method disclosed herein with reference to specific embodiments:

[0526] Example 1:

[0527] The base station configures the time information of the CW transmission resources (i.e., time domain resource configuration information) for at least one intermediate node or CW transmitting node. For example, the base station can configure the time domain transmission resources of multiple CW signals using time division duplexing (TDD). The intermediate node or CW transmitting node sends the CW signal according to the time domain resources configured by the base station.

[0528] In some embodiments, when the base station configures the time information of CW sending resources (that is, time domain resource configuration information) for at least one intermediate node or CW sending node, more specifically, the base station uses RRC signaling or MAC-CE or physical layer dynamic signaling or group common signaling to configure the time information of sending resources (that is, time domain resource configuration information) for at least one intermediate node or CW sending node.

[0529] The time information of the sending resource (that is, the time domain resource configuration information) includes at least one of the following: the starting point of the CW signal sending (one starting point or multiple starting points), the sending time length / duration of the CW signal (one length or multiple lengths), the number of times the CW signal is sent, the maximum time length of the CW sending, or the CW sending cycle.

[0530] For example, the base station configures a group or a starting point and length of a CW signal for each intermediate node or CW sending node. Different intermediate nodes or CW sending nodes can send CW signals in different time periods, ensuring fairness in the sending time when the number of intermediate nodes or CW sending nodes is greater than or equal to one.

[0531] When the base station configures the time information of the sending resources (i.e., time domain resource configuration information) for the intermediate node or CW sending node, the intermediate node or CW sending node does not expect the base station to configure the time domain resources for sending CW signals for at least one intermediate node or CW sending node to overlap or collide.

[0532] In some embodiments, the base station may divide the intermediate nodes or CW transmitting nodes into at least one group. The base station may assign a group identifier (group ID) to each group of intermediate nodes or CW transmitting nodes. Intermediate nodes or CW transmitting nodes with the same group ID are not expected to overlap in the time domain resources for transmitting CW signals. Alternatively, the base station ensures that the time domain resources for transmitting CW signals configured for a group of intermediate nodes or CW transmitting nodes do not overlap or collide.

[0533] In some embodiments, the base station configures the time information of the sending resource (i.e., the time domain resource configuration information) using group common signaling or multicast. For example, the group common signaling can be a group common physical downlink control channel (PDCCH), and the multicast can be physical downlink shared channel (PDSCH) configuration information scheduled by the group common PDCCH.

[0534] The intermediate node or CW transmitting node sends the corresponding CW signal according to the time domain resource configuration of the base station. The A-IoT device modulates and reflects the CW signal (also called an uplink signal or reverse signal) based on the CW signal sent by at least one time domain resource. The intermediate node or CW transmitting node receives the uplink signal or reverse signal reflected by the A-IoT device on the time domain resource associated with the CW time domain resource configured by the base station.

[0535] For example, within the coverage area of ​​a macro base station, there are many large A-IoT device warehouses. The base station can group the multiple intermediate nodes or CW transmitting nodes within each warehouse. For example, an A-IoT device warehouse has n intermediate nodes or CW transmitting nodes. Each intermediate node or CW transmitting node transmits a CW signal. Upon receiving the CW signal, the A-IoT device begins backscattering. If the time domain resources used by different intermediate nodes or CW transmitting nodes to transmit CW signals partially overlap or collide, the CW signal transmitted by each intermediate node or CW transmitting node may be received by another intermediate node or CW transmitting node. For example, intermediate node or CW transmitting node n may receive CW signals from n-1 other intermediate nodes or CW transmitting nodes. These CW signals may act as interference signals for the A-IoT device. Moreover, the CW signal strength is much greater than the reflected signal from the A-IoT device, potentially drowning out the reflected signal from the A-IoT device, resulting in the intermediate node or CW transmitting node being unable to successfully demodulate the signal. In the embodiment of the present disclosure, the time domain transmission resources configured by the base station for the intermediate node or CW transmitting node are TDD, as shown in Figure 6, which can successfully avoid the interference of the CW signal on the reflected signal and improve the coverage performance of A-IoT.

[0536] Example 2:

[0537] The base station notifies or indicates to other intermediate nodes or CW transmitting nodes the time domain information of the corresponding CW signal transmission resources for at least one intermediate node or CW transmitting node. For example, the base station may notify at least one node or CW transmitting node of the transmission time resources corresponding to the interfering node.

[0538] In some embodiments, the base station uses RRC signaling or MAC-CE or physical layer dynamic signaling (for example, UE-specific PDCCH or group common PDCCH) to notify or indicate the time domain information of the CW signal sending resources corresponding to at least one other intermediate node or CW sending node to at least one intermediate node or CW sending node.

[0539] In some embodiments, the base station may notify or indicate, for each or at least one intermediate node or CW transmitting node in a group of intermediate nodes or CW transmitting nodes, time domain information of CW signal transmission resources corresponding to at least one other intermediate node or CW transmitting node or all other intermediate nodes or CW transmitting nodes in the group. The so-called other intermediate node or CW transmitting node may be an interfering node when the CW transmitting node transmits.

[0540] The time domain information of the CW signal sending resources corresponding to the other intermediate nodes or CW sending nodes includes at least one of the following: identification information of the intermediate node or CW sending node (such as an index), the sending starting point of the CW signal (one starting point or multiple starting points), the sending duration or duration pattern of the CW signal (one length or multiple lengths), the number of CW transmissions, the maximum time length of CW transmission, the CW transmission cycle, etc.

[0541] The intermediate node or CW sending node determines the time domain sending resource corresponding to the CW signal according to at least one intermediate node or CW sending node indicated or configured by the base station, and sends the CW signal on the time domain sending resource.

[0542] The A-IoT device modulates and reflects the CW signal (i.e., uplink signal or reverse signal) based on the CW signal sent by at least one time domain resource. The intermediate node or CW transmitting node receives the uplink signal or reverse signal reflected by the A-IoT device on the time domain resource associated with the time domain resource of the CW signal configured by the base station.

[0543] This embodiment differs from Embodiment 1 in that the base station configures CW signal transmission time information (i.e., time-domain resource configuration information) for a group of intermediate nodes or CW transmitting nodes. Due to the large number of intermediate nodes or CW transmitting nodes, it is not possible to perform TDD on the transmission resources corresponding to each intermediate node or CW transmitting node in the time domain, i.e., to avoid CW signal collisions, as shown in FIG7 . In this case, in addition to configuring the corresponding CW signal transmission time information (i.e., time-domain resource configuration information) for the intermediate node or CW transmitting node, the base station can also additionally notify other intermediate nodes or CW transmitting nodes of the CW signal transmission resources. Each intermediate node or CW transmitting node, according to the configuration or instruction of the base station, can transmit its corresponding CW signal on time resources that do not conflict with other intermediate nodes or CW transmitting nodes, or can transmit its corresponding CW signal on resources that conflict with other intermediate nodes or CW transmitting nodes, entirely according to the instruction of the base station. However, since the base station notifies the time-domain transmission resources of other interfering nodes, the intermediate node can estimate the interfering CW signal when receiving it and perform interference cancellation, thereby improving the reception performance of the reader (i.e., the intermediate node or CW transmitting node).

[0544] Example 3:

[0545] The base station is at least one intermediate node or CW sending node, and notifies or indicates the intermediate node or CW sending node of frequency domain information (ie, frequency domain resource configuration information) of the transmission resources of the CW signal corresponding to the intermediate node or CW sending node.

[0546] In some embodiments, the frequency domain information of the sending resource includes at least one of the following: the center frequency point, bandwidth, frequency domain starting point, frequency domain end point information or carrier information of the CW signal; for example: the frequency domain information can correspond to the sending frequency information of a CW signal, or it can be the sending frequency domain information of a group of CW signals.

[0547] In some embodiments, the base station side configures frequency domain information of at least one CW signal transmission resource for at least one intermediate node or CW transmitting node using RRC signaling or MAC-CE or physical layer dynamic signaling (such as PDCCH).

[0548] In some embodiments, the base station configures different CW signal frequency domain resources for different intermediate nodes or CW transmitting nodes. For example, different CW signal frequency domain transmission resources can be configured for each intermediate node. For example, different CW signal frequency domain resources can have different center frequencies, or the CW signal frequency domain resources associated with different intermediate nodes or CW transmitting nodes do not partially overlap or collide.

[0549] In some embodiments, the base station may divide the intermediate nodes or CW transmitting nodes into at least one group, and the base station may assign a group ID to each group of intermediate nodes or CW transmitting nodes. Intermediate nodes or CW transmitting nodes with the same group ID do not expect the base station to configure CW signal transmission resources to partially overlap or collide in the frequency domain. Alternatively, the base station ensures that the CW signal transmission resources configured for a group of intermediate nodes or CW transmitting nodes do not partially overlap or collide in the frequency domain. Alternatively, the base station configures at least one CW signal frequency domain resource for an intermediate node or CW transmitting node.

[0550] In some embodiments, the base station may configure the frequency domain information of the sending resources using group common signaling or multicast. For example, the group common signaling may be group common PDCCH, and the multicast may be PDSCH configuration information scheduled by group common PDCCH.

[0551] In some embodiments, the intermediate node or CW transmitting node transmits the corresponding CW signal on different frequency domain resources according to the frequency domain resource configuration of the base station. Specifically, it can be at least one of the following methods:

[0552] The intermediate node or CW transmitting node transmits a CW signal on a frequency domain resource configured by the base station;

[0553] The intermediate node or CW transmitting node transmits CW signals on all frequency domain resources configured by the base station;

[0554] The intermediate node or the CW sending node selects one or more frequency domain resources from at least one frequency resource configured by the base station to send a CW signal.

[0555] The A-IoT device modulates and reflects the CW signal (i.e., uplink signal or reflected signal) based on the CW signal sent by at least one frequency domain resource. The intermediate node or CW transmitting node receives the uplink signal or reverse signal reflected by the A-IoT device at the frequency domain resource associated with the CW frequency domain resource configured by the base station.

[0556] In this embodiment, the base station side can configure different frequency domain resources for each or at least one intermediate node or CW sending node for sending CW signals, for example: single-tone CW signals. As shown in Figure 8, for example, UE1 sends a single-tone CW signal 1 at frequency f_1 according to the base station configuration, UE2 sends a single-tone CW signal 2 at frequency f_2 according to the base station configuration, ..., UEn sends a single-tone CW signal n at frequency f_n according to the base station configuration. At this time, the A-IoT device receives a sine wave of n frequencies and can perform, for example, phase shift keying (PSK) modulation and reflect n sine waves. The UE can filter the corresponding received spectrum according to the frequency and modulation mode of the CW signal, receive the uplink signal or reflected signal corresponding to its own CW signal, and perform demodulation or decoding. Since different intermediate nodes or CW sending nodes use different frequency domain resources to send CW signals, by designing the frequency and the modulation mode of the A-IoT device, it can be ensured that the signal received by the intermediate node or CW sending node will not be interfered with by other CW signals.

[0557] Example 4:

[0558] The base station notifies or indicates to at least one intermediate node or CW sending node the spatial information (ie, spatial resource configuration information) of the transmission resources of the CW signal corresponding to the intermediate node or CW sending node.

[0559] In some embodiments, the base station side may configure frequency domain information of at least one CW signal transmission resource for at least one intermediate node or CW transmitting node using RRC signaling or MAC-CE or physical layer dynamic signaling (such as PDCCH).

[0560] The spatial domain information of the sending resource includes at least one of the following: the sending beam information of the CW signal, for example, the QCL information of the CW signal or the description information of the sending spatial direction angle of the CW signal sending beam, etc.

[0561] In some embodiments, the base station configures different CW signal spatial resources for different intermediate nodes or CW transmitting nodes. For example, the base station may configure at least one CW signal spatial transmission resource for each intermediate node or CW transmitting node.

[0562] In some embodiments, the base station may divide the intermediate nodes or CW transmitting nodes into at least one group, and the base station may assign a group ID to each group of intermediate nodes or CW transmitting nodes, and the base station ensures that the CW signal transmission spatial resources configured for a group of intermediate nodes or CW transmitting nodes do not partially overlap or collide.

[0563] In some embodiments, the base station uses group common signaling or multicast to configure the spatial domain information of the sending resources. For example, the group common signaling can be group common PDCCH, and the multicast can be the PDSCH configuration information scheduled by group common PDCCH. Alternatively, the base station uses separate signaling to configure a CW signal spatial domain sending resource for each intermediate node or CW sending node.

[0564] In some embodiments, the intermediate node or CW transmitting node transmits the corresponding CW signal on different spatial resources according to the spatial resource configuration of the base station. Specifically, it can be at least one of the following:

[0565] The intermediate node or CW transmitting node transmits a CW signal on a spatial resource configured by the base station;

[0566] The intermediate node or CW sending node sends CW signals in all airspace resources configured by the base station;

[0567] The intermediate node or the CW sending node selects one or more spatial resources from at least one frequency resource configured by the base station to send a CW signal.

[0568] The A-IoT device modulates and reflects the CW signal (i.e., uplink signal or reverse signal) based on the CW signal sent by at least one airspace resource. The intermediate node or CW transmitting node receives the uplink signal or reverse signal reflected by the A-IoT device at the airspace resource associated with the CW airspace source configured by the base station.

[0569] In this embodiment, by designing the modulation method of the airspace and A-IoT, it is ensured that the signal received by the intermediate node or CW transmitting node will not be interfered with by other CW signals. At the same time, since the CW signal power after beamforming is very high, the coverage range of the A-IoT device can be effectively improved. In addition, different airspace angles will also avoid the collision of A-IoT reflected signals, expanding the access opportunities of A-IoT devices.

[0570] Example 5:

[0571] The base station configures the CW signal transmission resources of N CW transmitting nodes for M intermediate nodes, including at least one of the following information: time domain transmission information of the CW signal, frequency domain transmission information of the CW signal, spatial domain transmission beam of the CW signal, and code domain transmission beam of the CW signal. In some embodiments, M>N, for example: M>1, N=1. More specifically:

[0572] The base station divides the intermediate nodes into at least one group: subgroup_1, subgroup_2, ..., subgroup_K;

[0573] The base station configures a CW signal sending node for each subgroup and / or configures the same CW signal sending resources for each subgroup. The sending resources are as described in embodiments 1 to 4 and will not be described again here.

[0574] The CW signal transmitting node transmits the CW signal on the corresponding CW transmitting resource according to the instruction of the base station. In this way, multiple intermediate nodes can share one CW transmitting node. For example, when all intermediate nodes share one CW transmitting node, interference between CW signals can be avoided.

[0575] Example 6:

[0576] The CW signal includes one or more single-tone signals, or a frequency-division multiplexed single-tone signal, or an OFDM signal. The single-tone signal has only one frequency point, for example, a sine wave; the multiple single-tone signals or frequency-division multiplexed single-tone signals are composed of multiple single-tone signals with different frequencies, for example, multiple sine waves with different frequencies. In some embodiments, the CW signals sent by the base station and the terminal all include one or more single-tone signals or the protocol stipulates that the CW signal sent by the base station is a single-tone signal, and the CW signal sent by the intermediate node includes at least one single-tone signal.

[0577] For example, the base station configures or indicates the waveform information used by the CW signal corresponding to the intermediate node or CW transmitting node. For example, the base station can use RRC signaling, MAC-CE, or physical layer dynamic signaling (such as PDCCH) to indicate the waveform information of the CW signal corresponding to the intermediate node or CW transmitting node, such as: bit = 0 indicates a single-tone signal, bit = 1 indicates an OFDM waveform; or bit = 0 indicates a single-tone signal, bit = 1 indicates at least one single-tone signal, or "01" indicates a single-tone signal, "10" indicates a frequency-division multiplexed single-tone signal, "11" indicates an OFDM signal, etc.

[0578] Example 7:

[0579] The network side or the intermediate node side (note: not the UE) sends one or more CW signals on one or more frequency resources. Specifically:

[0580] The base station or intermediate node indicates the time domain and / or frequency domain transmission resources of the CW signal, or the identification information of the CW signal, through a downlink query signal / channel or a downlink indication signal / channel. For example, the base station may use a query signal or a downlink indication signal to explicitly indicate the frequency domain and / or time domain resources of the CW signal; or the base station may use a query signal or a downlink indication signal to implicitly indicate the frequency domain and / or time domain resources of the CW signal. For example, the protocol predefines a group of CW signals, each CW signal is associated with a different frequency domain resource, and the base station indicates the identification information of the CW signal through a downlink query signal or a downlink indication signal, thereby implicitly indicating the time domain and / or frequency domain resources of the CW signal.

[0581] The multiple frequency domain resources may be a group of frequency domain resources predefined by a protocol, so as to distinguish the CW signal processing capabilities of different devices.

[0582] Alternatively, the transmission spectrum of the CW signal is located in the uplink spectrum of the FDD spectrum, and the base station sends the CW signal in the uplink spectrum. This can avoid the downlink CW signal from causing insurmountable interference to the uplink reception of the uplink spectrum, and the transmission of the reflected signal in the uplink spectrum is conducive to coexistence with other NR uplink signals.

[0583] Alternatively, when multiple base stations or intermediate nodes send CW signals to an A-IoT device, each base station or intermediate node may use different frequency domain and / or time domain transmission resources.

[0584] In some embodiments, the A-IoT device side can reflect the indicated CW signal according to the query signal or downlink indication signal of the base station or intermediate node.

[0585] As shown in Figure 9, multiple base stations are deployed indoors. Each base station transmits a CW signal on at least one frequency domain resource. For example, gNB1 transmits a CW1 signal on frequency f_1, while gNB2 transmits a CW2 signal on frequency f_2. The A-IoT device reflects the signal using frequency F1 associated with f_1 and frequency F2 associated with f_2. gNB1 demodulates the reflected signal on frequency F1, while gNB2 demodulates the reflected signal on frequency F2. If both base stations are very close to the A-IoT device, both can simultaneously demodulate the information carried in the reflected signal from the A-IoT device. However, if one base station is closer to the A-IoT device and the other is farther away, only one may demodulate the reflected signal from the A-IoT device. This effectively expands coverage and increases access for A-IoT devices without sacrificing performance.

[0586] In some embodiments, the network side or intermediate node (note, not the UE) indicates the time domain and / or frequency domain resources of the CW signal or the identification information of the CW signal through a downlink query signal / channel or a downlink indication signal / channel. At least one base station sends a CW signal to the A-IoT device. The A-IoT device does not expect to receive CW signals from different base stations at the same time, or the A-IoT device does not expect to receive CW signals from different base stations at the same time with partially overlapping or colliding frequency resources.

[0587] Example 8:

[0588] The A-IoT device does not expect to receive a query signal or downlink indication signal during the time resource of a CW signal transmission; or the A-IoT device does not expect to receive a CW signal during the time resource of a query signal or downlink indication signal transmission. The base station should ensure that the transmission time of the CW signal does not partially overlap or collide with the query signal or downlink indication signal.

[0589] The base station or CW sending node or intermediate node sends a query signal and a CW signal to the A-IoT device, with the CW signal preceding or following the query signal.

[0590] In some embodiments, a predefined protocol method is used to configure the gap between the query signal and the reflected signal from the A-IoT device. The granularity of this gap is symbol period, time slot period, or microseconds (µs) (e.g., gap = 3 symbols or gap = 16 µs). Within this gap, a CW signal is transmitted, but the A-IoT device does not reflect the signal. This facilitates uplink / downlink conversion for the A-IoT device within this gap, and allows the receiving end (e.g., a base station, CW transmitting node, or intermediate node) to estimate the self-interference caused by the CW signal on the receiving end, as shown in Figure 10.

[0591] In some embodiments, the base station uses a query signal / channel or a downlink indication signal / channel to indicate the gap between the query signal and the A-IoT device reflection signal, for example: the query signal / channel or the downlink indication signal / channel indicates whether there is a gap, the type of A-IoT device (for example: each type of A-IoT device corresponds to a gap length or an A-IoT device capability), or the identification information of the gap (for example: the length of the gap is predefined by the protocol, and the query signal / channel or the downlink indication signal / channel is used to indicate the identification information of a gap, that is, the length of the gap can be implicitly indicated).

[0592] The above embodiments 1 to 6 can be applied to the topology shown in Figure 2. The UE can be a UE that supports A-IoT capabilities (e.g., transmission and / or reception capabilities). For example, these UEs can support CW signal and / or query signal transmission, or support backscatter signal reception capabilities. In addition, the UE can also refer to an ordinary UE without A-IoT capabilities. For example, the base station notifies UEs that partially overlap with the CW signal transmission resources of the CW signal transmission resources, which facilitates the ordinary UE to perform interference cancellation.

[0593] The above embodiments have introduced the signal processing method disclosed herein. The following embodiments will further illustrate the corresponding network device with reference to the accompanying drawings.

[0594] As shown in FIG11 , this embodiment provides a first node, including a memory 111, a transceiver 112, and a processor 113. The memory 111 is used to store a computer program. The transceiver 112 is used to send and receive data under the control of the processor. For example, the transceiver 112 is used to receive and send data under the control of the processor 113. The processor 113 is used to read the computer program in the memory and perform the following operations:

[0595] Receiving a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal;

[0596] According to the first signaling, at least one first signal is sent; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0597] In some embodiments, the resource configuration information is used to indicate at least one of the following:

[0598] a first signal sending resource corresponding to the first node;

[0599] a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes;

[0600] a first signal sending resource corresponding to the first node group to which the first node belongs;

[0601] a first signal sending resource corresponding to at least one first node associated with the network device.

[0602] In some embodiments, when the first node does not expect the network device to configure first signal transmission resources for multiple first nodes, partial overlap or collision occurs between the first signal transmission resources corresponding to the multiple first nodes;

[0603] or,

[0604] When the first node does not expect the network device to configure first signal sending resources for the first node group to which the first node belongs, the first signal sending resources corresponding to the first nodes in the first node group partially overlap or collide.

[0605] In some embodiments, the first node includes at least one of the following:

[0606] Intermediate nodes;

[0607] Carrier waveform sending node.

[0608] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0609] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0610] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0611] In some embodiments, the first signal includes at least one of the following:

[0612] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0613] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0614] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0615] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0616] identification information of the carrier waveform signal;

[0617] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0618] In some embodiments, the interval information includes at least one of the following:

[0619] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0620] the length of the interval;

[0621] the type of the first device;

[0622] Interval identification information.

[0623] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0624] After sending at least one of the carrier waveform signals on the first transmission resource according to the first signaling, sending at least one of the query signal or the downlink indication signal on the second transmission resource;

[0625] or,

[0626] According to the first signaling, after sending at least one of the query signal or the downlink indication signal on the second sending resource, at least one of the carrier waveform signals is sent on the first sending resource.

[0627] In some embodiments, the first node does not expect a partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device.

[0628] In some embodiments, sending the resource includes at least one of:

[0629] Time domain resources;

[0630] Frequency domain resources;

[0631] airspace resources;

[0632] Code domain resources.

[0633] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0634] A second signal is received from a first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

[0635] In some embodiments, the resource configuration information includes at least one of the following:

[0636] identification information of the first node;

[0637] identification information of the first node group;

[0638] Time domain resource configuration information;

[0639] Frequency domain resource configuration information;

[0640] Airspace resource configuration information;

[0641] Code domain resource configuration information;

[0642] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0643] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0644] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0645] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0646] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol.

[0647] In some embodiments, the waveform information includes at least one of the following:

[0648] Single tone waveform;

[0649] Frequency division multiplexing single tone waveform;

[0650] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0651] In some embodiments, the first signaling includes at least one of the following:

[0652] Radio Resource Control (RRC) signaling;

[0653] Media Access Control Element MAC CE;

[0654] Physical layer dynamic signaling;

[0655] Group common signaling.

[0656] In some embodiments, the first device includes at least one of the following:

[0657] IoT devices;

[0658] Passive devices;

[0659] Passive device.

[0660] In FIG11 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 113 and memory represented by memory 111, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 112 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 114 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0661] The processor 113 is responsible for managing the bus architecture and general processing, and the memory 111 can store data used by the processor 113 when performing operations.

[0662] In some embodiments, the processor 113 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0663] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0664] It should be noted here that the above-mentioned first node provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned first node side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0665] As shown in FIG12 , an embodiment of the present disclosure further provides a first node 1200, including:

[0666] The first receiving unit 1210 is configured to receive a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal;

[0667] The sending unit 1220 is used to send at least one first signal according to the first signaling; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

[0668] In some embodiments, the resource configuration information is used to indicate at least one of the following:

[0669] a first signal sending resource corresponding to the first node;

[0670] a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes;

[0671] a first signal sending resource corresponding to the first node group to which the first node belongs;

[0672] a first signal sending resource corresponding to at least one first node associated with the network device.

[0673] In some embodiments, when the first node does not expect the network device to configure first signal transmission resources for multiple first nodes, partial overlap or collision occurs between the first signal transmission resources corresponding to the multiple first nodes;

[0674] or,

[0675] When the first node does not expect the network device to configure first signal sending resources for the first node group to which the first node belongs, the first signal sending resources corresponding to the first nodes in the first node group partially overlap or collide.

[0676] In some embodiments, the first node includes at least one of the following:

[0677] Intermediate nodes;

[0678] Carrier waveform sending node.

[0679] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0680] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0681] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0682] In some embodiments, the first signal includes at least one of the following:

[0683] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0684] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0685] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0686] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0687] identification information of the carrier waveform signal;

[0688] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0689] In some embodiments, the interval information includes at least one of the following:

[0690] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0691] the length of the interval;

[0692] the type of the first device;

[0693] Interval identification information.

[0694] In some embodiments, the sending unit 1220 is further configured to:

[0695] After sending at least one of the carrier waveform signals on the first transmission resource according to the first signaling, sending at least one of the query signal or the downlink indication signal on the second transmission resource;

[0696] or,

[0697] According to the first signaling, after sending at least one of the query signal or the downlink indication signal on the second sending resource, at least one of the carrier waveform signals is sent on the first sending resource.

[0698] In some embodiments, the first node does not expect a partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device.

[0699] In some embodiments, sending the resource includes at least one of:

[0700] Time domain resources;

[0701] Frequency domain resources;

[0702] airspace resources;

[0703] Code domain resources.

[0704] In some embodiments, the first node 1200 further includes:

[0705] The second receiving unit is configured to receive a second signal from the first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

[0706] In some embodiments, the resource configuration information includes at least one of the following:

[0707] identification information of the first node;

[0708] identification information of the first node group;

[0709] Time domain resource configuration information;

[0710] Frequency domain resource configuration information;

[0711] Airspace resource configuration information;

[0712] Code domain resource configuration information;

[0713] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0714] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0715] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0716] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0717] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol.

[0718] In some embodiments, the waveform information includes at least one of the following:

[0719] Single tone waveform;

[0720] Frequency division multiplexing single tone waveform;

[0721] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0722] In some embodiments, the first signaling includes at least one of the following:

[0723] Radio Resource Control (RRC) signaling;

[0724] Media Access Control Element MAC CE;

[0725] Physical layer dynamic signaling;

[0726] Group common signaling.

[0727] In some embodiments, the first device includes at least one of the following:

[0728] IoT devices;

[0729] Passive devices;

[0730] Passive device.

[0731] It should be noted here that the above-mentioned first node provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned terminal side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0732] As shown in FIG13 , an embodiment of the present disclosure provides a network device, including a memory 131, a transceiver 132, and a processor 133. The memory 131 is used to store computer programs; the transceiver 132 is used to send and receive data under the control of the processor 133; for example, the transceiver 132 is used to receive and send data under the control of the processor 133; and the processor 133 is used to read the computer program in the memory 131 and perform the following operations:

[0733] Sending first signaling to at least one first node, or sending at least one first signal;

[0734] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0735] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0736] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node;

[0737] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes;

[0738] jointly sending a first signaling to at least one first node belonging to a first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal sending resource corresponding to the first node group;

[0739] A first signaling is jointly sent to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate the first signal sending resources corresponding to the multiple first nodes associated with the network device.

[0740] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0741] Sending the first signaling to each first node belonging to the first node group respectively;

[0742] or,

[0743] The first signaling is sent to each first node among the associated multiple first nodes respectively.

[0744] In some embodiments, when the network device configures first signal transmission resources for multiple first nodes, the first signal transmission resources corresponding to the multiple first nodes do not partially overlap or collide with each other;

[0745] or,

[0746] When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

[0747] In some embodiments, the first node includes at least one of the following:

[0748] Intermediate nodes;

[0749] Carrier waveform sending node.

[0750] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0751] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0752] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0753] In some embodiments, the first signal includes at least one of the following:

[0754] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0755] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0756] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0757] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0758] identification information of the carrier waveform signal;

[0759] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0760] In some embodiments, the interval information includes at least one of the following:

[0761] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0762] the length of the interval;

[0763] the type of the first device;

[0764] Interval identification information.

[0765] In some embodiments, the first transmission resource and the second transmission resource configured by the network device for the at least one first node do not partially overlap or collide;

[0766] The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

[0767] In some embodiments, the resource configuration information includes at least one of the following:

[0768] identification information of the first node;

[0769] identification information of the first node group;

[0770] Time domain resource configuration information;

[0771] Frequency domain resource configuration information;

[0772] Airspace resource configuration information;

[0773] Code domain resource configuration information;

[0774] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0775] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0776] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0777] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0778] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol;

[0779] or,

[0780] When the network device sends at least one first signal, waveform information of the first signal is agreed upon by a protocol.

[0781] In some embodiments, the waveform information includes at least one of the following:

[0782] Single tone waveform;

[0783] Frequency division multiplexing single tone waveform;

[0784] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0785] In some embodiments, the first signaling includes at least one of the following:

[0786] Radio Resource Control (RRC) signaling;

[0787] Media Access Control Element MAC CE;

[0788] Physical layer dynamic signaling;

[0789] Group common signaling.

[0790] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0791] transmitting a first signal on at least one transmission resource;

[0792] A first signal is sent on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

[0793] In some embodiments, sending the resource includes at least one of:

[0794] Time domain resources;

[0795] Frequency domain resources;

[0796] airspace resources;

[0797] Code domain resources.

[0798] In FIG13 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linking together one or more processors represented by processor 133 and memory represented by memory 131. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 132 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like. The processor 133 is responsible for managing the bus architecture and general processing, and the memory 131 may store data used by the processor 133 when performing operations.

[0799] The processor 133 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0800] It should be noted here that the above-mentioned network device provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned network device side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0801] As shown in FIG14 , an embodiment of the present disclosure provides a network device 1400, including:

[0802] The sending unit 1410 is configured to send a first signaling to at least one first node, or the network device sends at least one first signal;

[0803] The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

[0804] In some embodiments, the sending unit 1410 is further configured to:

[0805] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node;

[0806] Sending the first signaling to each first node of at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes;

[0807] jointly sending a first signaling to at least one first node belonging to a first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal sending resource corresponding to the first node group;

[0808] A first signaling is jointly sent to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate the first signal sending resources corresponding to the multiple first nodes associated with the network device.

[0809] In some embodiments, the sending unit 1410 is further configured to:

[0810] Sending the first signaling to each first node belonging to the first node group respectively;

[0811] or,

[0812] The first signaling is sent to each first node among the associated multiple first nodes respectively.

[0813] In some embodiments, when the network device configures first signal transmission resources for multiple first nodes, the first signal transmission resources corresponding to the multiple first nodes do not partially overlap or collide with each other;

[0814] or,

[0815] When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

[0816] In some embodiments, the first node includes at least one of the following:

[0817] Intermediate nodes;

[0818] Carrier waveform sending node.

[0819] In some embodiments, when the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following:

[0820] a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node;

[0821] The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

[0822] In some embodiments, the first signal includes at least one of the following:

[0823] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0824] The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

[0825] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0826] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0827] identification information of the carrier waveform signal;

[0828] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0829] In some embodiments, the interval information includes at least one of the following:

[0830] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0831] the length of the interval;

[0832] the type of the first device;

[0833] Interval identification information.

[0834] In some embodiments, the first transmission resource and the second transmission resource configured by the network device for the at least one first node do not partially overlap or collide;

[0835] The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

[0836] In some embodiments, the resource configuration information includes at least one of the following:

[0837] identification information of the first node;

[0838] identification information of the first node group;

[0839] Time domain resource configuration information;

[0840] Frequency domain resource configuration information;

[0841] Airspace resource configuration information;

[0842] Code domain resource configuration information;

[0843] The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle;

[0844] The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information;

[0845] The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam;

[0846] The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

[0847] In some embodiments, when the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol;

[0848] or,

[0849] When the network device sends at least one first signal, waveform information of the first signal is agreed upon by a protocol.

[0850] In some embodiments, the waveform information includes at least one of the following:

[0851] Single tone waveform;

[0852] Frequency division multiplexing single tone waveform;

[0853] Orthogonal Frequency Division Multiplexing (OFDM) waveform.

[0854] In some embodiments, the first signaling includes at least one of the following:

[0855] Radio Resource Control (RRC) signaling;

[0856] Media Access Control Element MAC CE;

[0857] Physical layer dynamic signaling;

[0858] Group common signaling.

[0859] In some embodiments, the sending unit 1410 is further configured to:

[0860] transmitting a first signal on at least one transmission resource;

[0861] A first signal is sent on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

[0862] In some embodiments, sending the resource includes at least one of:

[0863] Time domain resources;

[0864] Frequency domain resources;

[0865] airspace resources;

[0866] Code domain resources.

[0867] It should be noted here that the above-mentioned network device provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned network device side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0868] As shown in FIG15 , an embodiment of the present disclosure provides a first device, including a memory 151, a transceiver 152, and a processor 153. The memory 151 is used to store computer programs; the transceiver 152 is used to send and receive data under the control of the processor; the transceiver 152 is used to receive and send data under the control of the processor 153; and the processor 153 is used to read the computer program in the memory and perform the following operations:

[0869] Receiving a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0870] According to the first signal, uplink transmission is triggered or a second signal is modulated and reflected; wherein the second signal is a signal modulated and reflected based on the first signal.

[0871] In some embodiments, the first signal includes at least one of the following:

[0872] a carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0873] The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

[0874] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0875] After receiving the query signal or the downlink indication signal, the carrier waveform signal received after the first interval is modulated and reflected.

[0876] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0877] After receiving the query signal or the downlink indication signal, the carrier waveform signal received in the first interval is not modulated and reflected.

[0878] In some embodiments, the first interval is agreed upon by a protocol;

[0879] or,

[0880] The first interval is indicated in the query signal or the downlink indication signal.

[0881] In some embodiments, the granularity of the first interval is symbols or time slots or microseconds.

[0882] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0883] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0884] identification information of the carrier waveform signal;

[0885] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0886] In some embodiments, the interval information includes at least one of the following:

[0887] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0888] the length of the interval;

[0889] the type of the first device;

[0890] Interval identification information.

[0891] In FIG15 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 153 and memory represented by memory 151. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 152 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 154 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0892] The processor 153 is responsible for managing the bus architecture and general processing, and the memory 151 can store data used by the processor 153 when performing operations.

[0893] In some embodiments, the processor 153 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0894] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0895] It should be noted here that the above-mentioned first device provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned first device side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0896] As shown in FIG16 , an embodiment of the present disclosure provides a first device 1600, including:

[0897] Receiving unit 1610, configured to receive a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal;

[0898] The processing unit 1620 is configured to trigger uplink transmission or modulate and reflect a second signal according to the first signal; wherein the second signal is a signal modulated and reflected based on the first signal.

[0899] In some embodiments, the first signal includes at least one of the following:

[0900] A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal;

[0901] The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

[0902] In some embodiments, the processing unit 1620 is further configured to:

[0903] After receiving the query signal or the downlink indication signal, the carrier waveform signal received after the first interval is modulated and reflected.

[0904] In some embodiments, the processing unit 1620 is further configured to:

[0905] After receiving the query signal or the downlink indication signal, the carrier waveform signal received in the first interval is not modulated and reflected.

[0906] In some embodiments, the first interval is agreed upon by a protocol;

[0907] or,

[0908] The first interval is indicated in the query signal or the downlink indication signal.

[0909] In some embodiments, the granularity of the first interval is symbols or time slots or microseconds.

[0910] In some embodiments, the query signal or the downlink indication signal carries at least one of the following information:

[0911] The first indication information is used to indicate a sending resource of the carrier waveform signal;

[0912] identification information of the carrier waveform signal;

[0913] The interval information between the query signal or downlink indication signal and the carrier waveform signal.

[0914] In some embodiments, the interval information includes at least one of the following:

[0915] The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal;

[0916] the length of the interval;

[0917] the type of the first device;

[0918] Interval identification information.

[0919] It should be noted here that the above-mentioned first device provided in the embodiment of the present disclosure can implement all the method steps implemented in the signal processing method embodiment on the above-mentioned first device side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0920] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0921] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0922] An embodiment of the present disclosure also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the steps of the signal processing method on the first node side, or the computer program is used to enable the processor to execute the steps of the signal processing method on the network device side, or the computer program is used to enable the processor to execute the steps of the signal processing method on the first device side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0923] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as compact discs (CD), digital video discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor memory (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid-state drives (SSD)), etc.

[0924] An embodiment of the present disclosure also provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the signal processing method on the first node side, or implement the steps of the signal processing method on the network device side, or implement the steps of the signal processing method on the first device side, and can achieve the same technical effect. To avoid repetition, they will not be repeated here.

[0925] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0926] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0927] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0928] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0929] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0930] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0931] For example, each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0932] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0933] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A signal processing method, comprising: The first node receives a first signaling sent by a network device; wherein the first signaling carries resource configuration information of the first signal and / or waveform information of the first signal; The first node sends at least one first signal according to the first signaling; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal.

2. The signal processing method according to claim 1, wherein: The resource configuration information is used to indicate at least one of the following: a first signal sending resource corresponding to the first node; a first signal sending resource corresponding to the first node and a first signal sending resource corresponding to other first nodes; a first signal sending resource corresponding to the first node group to which the first node belongs; a first signal sending resource corresponding to at least one first node associated with the network device.

3. The signal processing method according to claim 1 or 2, wherein: When the first node does not expect the network device to configure first signal transmission resources for the multiple first nodes, partial overlap or collision occurs between the first signal transmission resources corresponding to the multiple first nodes; or, When the first node does not expect the network device to configure first signal sending resources for the first node group to which the first node belongs, the first signal sending resources corresponding to the first nodes in the first node group partially overlap or collide. The signal processing method according to claim 1 , wherein: The first node includes at least one of the following: Intermediate nodes; Carrier waveform sending node.

5. The signal processing method according to any one of claims 1 to 4, wherein: In a case where the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following: a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node; The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node. The signal processing method according to claim 1 , wherein: The first signal includes at least one of the following: A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal; The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

7. The signal processing method according to claim 6, wherein: The query signal or downlink indication signal carries at least one of the following information: The first indication information is used to indicate a sending resource of the carrier waveform signal; identification information of the carrier waveform signal; The interval information between the query signal or downlink indication signal and the carrier waveform signal. The signal processing method according to claim 7 , wherein: The interval information includes at least one of the following: The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal; the length of the interval; the type of the first device; Interval identification information.

9. The signal processing method according to claim 6, wherein: The first node sends at least one first signal according to the first signaling, including: The first node sends at least one of the query signals or the downlink indication signal on a second sending resource after sending at least one of the carrier waveform signals on a first sending resource according to the first signaling; or, The first node sends at least one of the query signals or the downlink indication signal on the second sending resource according to the first signaling, and then sends at least one of the carrier waveform signals on the first sending resource.

10. The signal processing method according to claim 9, wherein: The first node does not expect that the first sending resource and the second sending resource configured by the network device partially overlap or collide with each other.

11. The signal processing method according to claim 2 or 3 or 5 or 7 or 9 or 10, wherein: The sending resource includes at least one of the following: Time domain resources; Frequency domain resources; airspace resources; Code domain resources.

12. The signal processing method according to claim 1, wherein: After the first node sends at least one first signal according to the first signaling, the step further includes: The first node receives a second signal from the first device, wherein the second signal is a signal modulated and reflected by the first device based on the first signal.

13. The signal processing method according to claim 1, wherein: The resource configuration information includes at least one of the following: identification information of the first node; identification information of the first node group; Time domain resource configuration information; Frequency domain resource configuration information; Airspace resource configuration information; Code domain resource configuration information; The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle; The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information; The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam; The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code. The signal processing method according to claim 1 , wherein: In the case that the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol.

15. The signal processing method according to claim 1 or 14, wherein: The waveform information includes at least one of the following: Single tone waveform; Frequency division multiplexing single tone waveform; Orthogonal Frequency Division Multiplexing (OFDM) waveform.

16. The signal processing method according to claim 1, wherein: The first signaling includes at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control Element MAC CE; Physical layer dynamic signaling; Group common signaling.

17. The signal processing method according to claim 1, wherein: The first device includes at least one of the following: IoT devices; Passive devices; Passive device.

18. A signal processing method, comprising: The network device sends a first signaling to at least one first node, or the network device sends at least one first signal; The first signaling carries resource configuration information of the first signal and / or waveform information of the first signal, and the first signal is used to trigger the first device to modulate and reflect the signal and / or trigger the first device to send or receive the signal.

19. The signal processing method according to claim 18, wherein: The network device sends a first signaling to at least one first node, including at least one of the following: The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node; The network device sends the first signaling to each first node of the at least one first node respectively; wherein the resource configuration information carried in the first signaling is used to indicate the first signal sending resource corresponding to the first node and the first signal sending resources corresponding to other first nodes; The network device jointly sends a first signaling to at least one first node belonging to a first node group; wherein the resource indication information carried in the first signaling is used to indicate a first signal sending resource corresponding to the first node group; The network device jointly sends a first signaling to multiple associated first nodes; wherein the resource indication information carried in the first signaling is used to indicate first signal sending resources corresponding to the multiple first nodes associated with the network device.

20. The signal processing method according to claim 19, wherein: The network device sending the first signaling to each first node of the at least one first node respectively includes: The network device sends the first signaling to each first node belonging to the first node group respectively; or, The network device sends the first signaling to each first node of the associated multiple first nodes respectively.

21. The signal processing method according to claim 19 or 20, wherein: When the network device configures the transmission resources of the first signal for the plurality of first nodes, the transmission resources of the first signal corresponding to the plurality of first nodes do not partially overlap or collide with each other; or, When the network device configures the first signal sending resources for the first node group, the first signal sending resources corresponding to the first nodes in the first node group do not partially overlap or collide with each other.

22. The signal processing method according to claim 18, wherein: The first node includes at least one of the following: Intermediate nodes; Carrier waveform sending node.

23. The signal processing method according to any one of claims 18 to 22, wherein: In a case where the first node is a carrier waveform sending node, the resource configuration information is used to indicate at least one of the following: a first signal sending resource corresponding to at least one intermediate node associated with the carrier waveform sending node; The first signal sending resource corresponding to the first intermediate node group associated with the carrier waveform sending node.

24. The signal processing method according to claim 18, wherein: The first signal includes at least one of the following: A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal; The query signal or the downlink indication signal is used to trigger the first device to send, receive or reflect a signal.

25. The signal processing method according to claim 24, wherein: The query signal or the downlink indication signal carries at least one of the following information: The first indication information is used to indicate a sending resource of the carrier waveform signal; identification information of the carrier waveform signal; The interval information between the query signal or downlink indication signal and the carrier waveform signal.

26. The signal processing method according to claim 25, wherein: The interval information includes at least one of the following: The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal; the length of the interval; the type of the first device; Interval identification information.

27. The signal processing method according to claim 24, wherein: There is no partial overlap or collision between the first transmission resource and the second transmission resource configured by the network device for at least one first node; The first sending resource is a sending resource corresponding to the carrier waveform signal, and the second sending resource is a sending resource corresponding to the query signal or the downlink indication signal.

28. The signal processing method according to claim 18, wherein: The resource configuration information includes at least one of the following: identification information of the first node; identification information of the first node group; Time domain resource configuration information; Frequency domain resource configuration information; Airspace resource configuration information; Code domain resource configuration information; The time domain resource configuration information includes at least one of the following: at least one sending starting point information, at least one sending time length or duration, number of sending times, maximum sending time length and sending cycle; The frequency domain resource configuration information includes at least one of the following: at least one center frequency point, at least one bandwidth, at least one frequency domain starting point information, at least one frequency domain end point information, and at least one carrier information; The spatial resource configuration information includes at least one of the following: quasi-co-location QCL information, and description information of the transmission spatial direction angle of the transmission beam; The code domain resource configuration information includes at least one of the following: identification information of an orthogonal code and identification information of a quasi-orthogonal code.

29. The signal processing method according to claim 18, wherein: In the case where the first signaling does not carry the waveform information, the waveform information of the first signal is agreed upon by a protocol; or, When the network device sends at least one first signal, waveform information of the first signal is agreed upon by a protocol.

30. The signal processing method according to claim 18 or 29, wherein: The waveform information includes at least one of the following: Single tone waveform; Frequency division multiplexing single tone waveform; Orthogonal Frequency Division Multiplexing (OFDM) waveform.

31. The signal processing method according to claim 18, wherein: The first signaling includes at least one of the following: Radio Resource Control (RRC) signaling; Media Access Control Element MAC CE; Physical layer dynamic signaling; Group common signaling.

32. The signal processing method according to claim 18, wherein: The network device sends at least one first signal, including at least one of the following: The network device sends a first signal on at least one sending resource; The network device sends a first signal on at least one group of sending resources; wherein different network devices are associated with at least one group of sending resources, and / or a group of sending resources is associated with at least one network device.

33. The signal processing method according to claim 18, 20, 22, 24, 26 or 32, wherein: The sending resource includes at least one of the following: Time domain resources; Frequency domain resources; airspace resources; Code domain resources.

34. A signal processing method, comprising: The first device receives a first signal sent by a first node or network device; wherein the first signal is used to trigger the first device to modulate and reflect a signal and / or trigger the first device to send or receive a signal; The first device triggers uplink transmission or modulates and reflects a second signal according to the first signal; wherein the second signal is a signal modulated and reflected based on the first signal.

35. The signal processing method according to claim 34, wherein: The first signal includes at least one of the following: A carrier waveform signal, used to trigger the first device to modulate and reflect the carrier waveform signal; The query signal or downlink indication signal is used to trigger the first network device to send, receive or reflect a signal.

36. The signal processing method according to claim 35, wherein: The first device modulates and reflects a second signal according to the first signal, including: After receiving the query signal or the downlink indication signal, the first device modulates and reflects the carrier waveform signal received after the first interval.

37. The signal processing method according to claim 35, wherein: After the first device receives the first signal sent by the first node or network device, the method further includes: After receiving the query signal or the downlink indication signal, the first device does not modulate and reflects the carrier waveform signal received within the first interval.

38. The signal processing method according to claim 36 or 37, wherein: The first interval is agreed upon by agreement; or, The first interval is indicated in the query signal or the downlink indication signal.

39. The signal processing method according to claim 36 or 37, wherein: The granularity of the first interval is symbol, time slot or microsecond.

40. The signal processing method according to claim 35, wherein: The query signal or the downlink indication signal carries at least one of the following information: The first indication information is used to indicate a sending resource of the carrier waveform signal; identification information of the carrier waveform signal; The interval information between the query signal or downlink indication signal and the carrier waveform signal.

41. The signal processing method according to claim 40, wherein: The interval information includes at least one of the following: The second indication information is used to indicate whether there is a gap between the query signal or the downlink indication signal and the carrier waveform signal; the length of the interval; the type of the first device; Interval identification information.

42. A first node comprising a memory, a transceiver, and a processor; wherein: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the steps of the signal processing method according to any one of claims 1 to 17.

43. A network device comprising a memory, a transceiver, and a processor; wherein: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the steps of the signal processing method according to any one of claims 18 to 33.

44. A first device comprising a memory, a transceiver, and a processor; wherein: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the steps of the signal processing method described in any one of claims 34 to 41.

45. A processor-readable storage medium storing a computer program, wherein the computer program is configured to cause the processor to execute the steps of the signal processing method according to any one of claims 1 to 41.

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