Method and apparatus for node used for wireless communication positioning

Abstract

The present application discloses a method and apparatus for a node used for wireless communication positioning. The method comprises: a node receiving a target signal; and sending a target information block, wherein the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value depends on a reception moment of the target signal, the reception timing of a downlink subframe closet to the reception of the target signal, and a target offset; the target offset depends a time offset between a time domain resource configured for the target signal and the downlink subframe; and the first device is a device that performs signal-excited transmission. The present application supports positioning enhancement of an Ambient IoT device, and is conducive to fully exerting the advantages of the Ambient IoT device, saving the deployment costs, expanding the coverage range, and enhancing the accuracy of positioning in a non-line-of-sight environment.

Description

A method and apparatus in a node used for wireless communication positioning

[0001] This application claims priority to the Chinese Patent Application No. 202411296568.2, filed on September 14, 2024, and entitled “A method and apparatus in a node used for wireless communication positioning”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to a signal transmission method and apparatus in a wireless communication system, and in particular to a positioning method and apparatus. BACKGROUND

[0003] Traditional Internet of Things (IoT) technology improves production efficiency and quality of life through wireless communication between devices. However, traditional IoT devices are usually powered by batteries and need to be manually replaced or charged, which not only leads to high maintenance costs and environmental problems, but also brings safety hazards in wireless sensor applications in special industries such as power and oil. To solve the limitations of traditional IoT technology, the 3rd Generation Partnership Project (3GPP) started research on Ambient Internet of Things (Ambient IoT or Am IoT) technology based on Release-18 (Rel-18) to focus on supporting devices without batteries or with limited energy storage. Ambient IoT devices achieve device power supply through ambient energy harvesting technology (such as radio waves, light, motion, and heat), thereby reducing manual intervention and reducing device complexity and power consumption. Ambient IoT technology has a wider coverage range and lower deployment cost, and is suitable for low-power scenarios, especially for asset management and logistics tracking scenarios.

[0004] Currently, the Technical Specification Group (TSG) RAN (Radio Access Network) has completed the technical framework of Ambient IoT in Rel-18, defining representative use cases, deployment scenarios, connectivity topologies, Ambient IoT devices, design targets, and required functionalities, etc., and conducting preliminary feasibility assessment. In the future, Ambient IoT will fill the gap of existing technologies in ultra-high density connection and ultra-low power consumption applications, and promote the growth of IoT device quantity to the order of hundreds of billions, opening up new markets for the Internet of Things field. SUMMARY

[0005] The design of Ambient IoT devices is often based on backscattering technology. When external radio frequency signals are transmitted to the surface of an object, part of the signals will be reflected. The Ambient IOT device can adjust the matching between the receiving antenna and the impedance according to the information to be transmitted, to enhance the reflection of the incident radio frequency signal, and modulate the information to be transmitted onto the reflected signal, thereby completing the transmission of information. A typical deployment scenario of Ambient IoT is that the terminal acts as a reader and writer of Ambient IoT devices to communicate with Ambient IoT devices. Further, when the network device provides a carrier as an excitation source for the Ambient IoT device, the backscattering transmission of the Ambient IoT device can be regarded as a reflection link from the base station to the terminal device, which can be combined with the direct link from the base station to the terminal to achieve terminal positioning enhancement. Therefore, how to perform positioning enhancement based on Ambient IoT technology is a problem worthy of study.

[0006] To address the above issues, this application discloses a solution. It should be noted that although the original intention of this application is for Ambient IoT scenarios, this application can also be applied to other non-Ambient IoT scenarios; further, adopting a unified design scheme for different scenarios (such as other non-Ambient IoT scenarios, including but not limited to Vehicle to Everything (V2X), capacity enhancement systems, near-range communication systems, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, etc.) also helps to reduce hardware complexity and cost. In the case of no conflict, the embodiments in any node of this application and the features in the embodiments can be applied to any other node. In the case of no conflict, the embodiments of this application and the features in the embodiments can be arbitrarily combined with each other.

[0007] In particular, the explanation of the terminology, nouns, functions, and variables in this application (if not specially stated) can refer to the definitions in TS38 series, TS37 series in the Technical Specification (TS) of 3GPP (the 3rd Generation Partnership Project). If necessary, TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, TS38.423 in the 3GPP technical standard can be referred to to assist in understanding this application.

[0008] As an embodiment, the explanation of the terminology in this application is to refer to the definition of the specification agreement TS38 series of 3GPP.

[0009] As an embodiment, the explanation of the terminology in this application is to refer to the definition of the specification agreement TS37 series of 3GPP.

[0010] As an embodiment, the explanation of the terminology in this application is to refer to the definition in the Rel-17 version of the specification agreement of 3GPP.

[0011] As an embodiment, the explanation of the terminology in this application is to refer to the definition in the Rel-18 version of the specification agreement of 3GPP.

[0012] The application discloses a method for positioning a first node in wireless communication, comprising:

[0013] receiving a target signal;

[0014] sending a target information block;

[0015] wherein the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value depends on a receiving time of the target signal, a receiving timing of a nearest downlink subframe of the target signal and a target offset; the target offset depends on a time offset between a time domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal excitation transmission.

[0016] As an embodiment, the application addresses the problem of how to improve positioning accuracy based on Internet of Things technology.

[0017] As an embodiment, the application addresses the problem of positioning enhancement based on Ambient IoT technology.

[0018] As an embodiment, the application addresses the problem of how the first node determines the first time offset value.

[0019] As an embodiment, the method has the feature that in the application, the first node sends the first time offset value, thereby helping the network to perform positioning for the first device or the first node, thus solving the above problem.

[0020] As an embodiment, the method has the feature that a transmission delay of a sender of the target signal to the first node is a first transmission delay, and a transmission delay of the sender of the target signal to the first node via the first device is a second transmission delay, and by means of the first time offset value, the network side can know a time difference between the first transmission delay and the second transmission delay, thereby using the information to perform positioning for the first device or the first node.

[0021] As an embodiment, the method has the feature that the first node is a terminal.

[0022] As an embodiment, the method has the feature that the first node and a receiver of the target information block are downlink synchronized.

[0023] As an embodiment, the method has the benefit of improving positioning accuracy of the system and reducing positioning error.

[0024] As an embodiment, the benefits of the above method include: the present application supports Ambient IoT technology, small device size, low complexity and power consumption, easy to deploy on a large scale.

[0025] As an embodiment, the benefits of the above method include: positioning enhancement based on Ambient IoT devices helps to fully exploit the advantages of Ambient IoT devices, save deployment costs, expand coverage, and enhance positioning accuracy in non-line-of-sight environments.

[0026] As an embodiment, the benefits of the above method include: in the present application, the network side positions the terminal or Ambient IoT device by reporting the delay difference between the downlink direct path and the transmission path including the Ambient IoT device on the terminal side, which is simple, flexible and adaptive.

[0027] As an embodiment, the benefits of the above method include: the present application supports passive device positioning based on terminals, supports large-scale Ambient IoT device positioning and tracking, and helps to realize network intelligence.

[0028] According to one aspect of the present application, the above method is characterized in that the target signal is the feedback of the first device to the excitation signal.

[0029] As an embodiment, the features of the above method include: the target signal is a wireless signal modulated by the first device based on the excitation signal.

[0030] As an embodiment, the features of the above method include: the target signal is transmitted on PDRCH.

[0031] As an embodiment, the benefits of the above method include: the sender of the excitation signal is a network side device.

[0032] As an embodiment, the benefits of the above method include: the network side device as the excitation source sends the excitation signal without requiring the terminal to have full duplex capability, reducing the cost and requirements involved in the terminal.

[0033] As an embodiment, the benefits of the above method include: support for backscatter communication to achieve a low-power, efficient communication mode.

[0034] According to one aspect of the present application, the above method is characterized in that the first time offset value depends on the second time offset value, and the second time offset value is equal to the delay between the reception time of the excitation signal at the first device and the transmission time of the excitation signal at the first device.

[0035] As an embodiment, the method has the feature that the second time offset value is a backscatter transmission latency of the first device.

[0036] As an embodiment, the method has the benefit that the accuracy of the first time offset value is improved by considering the backscatter transmission latency, thereby improving the positioning accuracy.

[0037] As an embodiment, the method has the benefit that the terminal is helped to better identify multipath, thereby optimizing the channel estimation.

[0038] As an embodiment, the method has the benefit that the environmental awareness capability is improved, thereby supporting the positioning and tracking in a complex environment.

[0039] According to an aspect of the present application, the method has the feature that it comprises:

[0040] receiving a first information block;

[0041] wherein the first information block comprises the second time offset value.

[0042] As an embodiment, the method has the feature that the first information block is carried by the target signal.

[0043] As an embodiment, the method has the feature that the first information block is used to indicate a feature of the first device, and the feature of the first device is used to determine the second time offset value.

[0044] As an embodiment, the method has the benefit that the signaling overhead is reduced, thereby improving the spectrum efficiency.

[0045] As an embodiment, the method has the benefit that it helps to support more Ambient IoT devices, thereby enhancing the scalability of the network.

[0046] As an embodiment, the method has the benefit that the terminal complexity is reduced, thereby improving the communication efficiency.

[0047] According to an aspect of the present application, the method has the feature that the first information block comprises a first power loss value, and the first power loss value is equal to the power loss of the excitation signal between the reception and the transmission of the first device.

[0048] As an embodiment, the method has the feature that the present application supports the Ambient IoT device with independent signal amplification.

[0049] As an embodiment, the method has the feature that the present application supports the Ambient IoT device without independent signal amplification.

[0050] As an embodiment, the method has the advantage that the ambient IoT device reports its own characteristics to the network, which helps to exploit the characteristics of the ambient IoT device and further improve the overall performance of the system.

[0051] As an embodiment, the method has the advantage that the network side can further improve the positioning accuracy based on the first power loss value and the path loss between the network device and the first node, and improve the accuracy of positioning.

[0052] As an embodiment, the method has the advantage that when the first power loss value is known at the network side, the network can perform channel measurement using the wireless signal transmitted by the first device, and then reasonably determine the transmission power value of the first node for the first device, so as to improve the spectrum efficiency of the system and reduce power consumption.

[0053] According to an aspect of the present application, the method is characterized in that it comprises:

[0054] sending a first signal;

[0055] The first signal is used to trigger the sending of the first information block.

[0056] As an embodiment, the method has the advantage that the first node sends the first signal to trigger the sending of the first information block, so as to realize the reporting of the characteristic information of the first device.

[0057] As an embodiment, the method has the advantage that the first signal comprises scheduling signaling of the first information block.

[0058] As an embodiment, the method has the advantage that the physical layer channel occupied by the first signal is PRDCH.

[0059] As an embodiment, the method has the advantage that the first node sends the first signal, and because the first node is close to the first device, the above-mentioned method reduces power consumption and saves energy.

[0060] As an embodiment, the method has the advantage of good compatibility.

[0061] According to an aspect of the present application, the method is characterized in that the first time offset value depends on the time difference between the receiving time of the first information block and the sending time of the first signal.

[0062] As an embodiment, the method has the advantage that the time difference between the sending time of the first signal and the receiving time of the first information block depends on the type of the first device.

[0063] As an embodiment, the method has a feature that the time difference between the sending time of the first signal and the receiving time of the first information block depends on the type of information carried by the first information block.

[0064] As an embodiment, the method has a feature that the time difference between the sending time of the first signal and the receiving time of the first information block includes the processing delay of the Ambient IoT device.

[0065] As an embodiment, the method has a benefit that the introduction of the processing delay of the Ambient IoT device and the consideration of only the response meeting the processing delay of the device can improve the accuracy of the first time offset value and further improve the positioning accuracy.

[0066] According to an aspect of the present application, the method has a feature that the first node is a user equipment.

[0067] According to an aspect of the present application, the method has a feature that the first node is a reader-writer.

[0068] According to an aspect of the present application, the method has a feature that the first node is a terminal.

[0069] The present application discloses a method in a second node for positioning in wireless communication, comprising:

[0070] receiving a target information block;

[0071] wherein the sender of the target information block is a first node, the first node receives a target signal from a first device; the target information block includes a first time offset value; the first time offset value depends on the receiving time of the target signal, the receiving timing of the nearest downlink subframe at which the first node receives the target signal, and a target offset; the target offset depends on the time offset between the time domain resource configured for the target signal and the downlink subframe; and the first device is a device using signal-stimulated transmission.

[0072] As an embodiment, the present application aims to solve the problem of how the second node determines the first time offset value.

[0073] As an embodiment, the present application aims to solve the problem of how the second node determines the positioning of the sender of the target information block.

[0074] As an embodiment, the present application aims to solve the problem of how the second node determines the positioning of the first device.

[0075] As an embodiment, the method has the feature that a downlink transmission delay between the second node and a sender of the target information block is a first transmission delay, the second node sends a stimulus signal, the stimulus signal backscatters through the first device to generate the target signal, a transmission delay of the target signal to reach the sender of the target information block is a second transmission delay, the sender of the target information block calculates a time difference between the first transmission delay and the second transmission delay and transmits the time difference to the second node through the target information block, thereby assisting the second node to realize positioning of the first device or the sender of the target information block.

[0076] As an embodiment, the method has the feature that the second node is a base station.

[0077] As an embodiment, the method has the feature that the second node is an eNB.

[0078] As an embodiment, the method has the feature that the second node is a gNB.

[0079] As an embodiment, the method has the feature that the second node is a network device.

[0080] As an embodiment, the method has the feature that the second node is a stimulus node device.

[0081] As an embodiment, the method has the feature that the second node is a reader-writer.

[0082] According to an aspect of the present application, the method has the feature that the target signal is feedback of the first device to the stimulus signal.

[0083] As an embodiment, the method has the feature that the second node sends the stimulus signal.

[0084] As an embodiment, the method has the benefit of significantly reducing terminal power consumption.

[0085] As an embodiment, the method has the benefit that the network side device as a stimulus source sends a stimulus signal, which does not require the terminal to have full duplex capability, thereby reducing terminal design cost and requirement.

[0086] According to an aspect of the present application, the method has the feature that the first time offset value depends on a second time offset value, and the second time offset value is equal to a time delay between a receiving time of the stimulus signal at the first device and a sending time of the stimulus signal at the first device.

[0087] According to an aspect of the present application, the above method is characterized in that the first node receives a first information block; the first information block comprises the second time offset value.

[0088] According to an aspect of the present application, the above method is characterized in that the first information block comprises a first power loss value, the first power loss value being equal to a power loss of the excitation signal between the first device from receiving to transmitting.

[0089] According to an aspect of the present application, the above method is characterized in that the first node transmits a first signal; the first signal is used to trigger the first information block.

[0090] According to an aspect of the present application, the above method is characterized in that the first time offset value depends on a time difference between a receiving time of the first information block and a transmitting time of the first signal.

[0091] According to an aspect of the present application, the above method is characterized in that the second node is a network device.

[0092] According to an aspect of the present application, the above method is characterized in that the second node is a radio frequency source.

[0093] According to an aspect of the present application, the above method is characterized in that the second node is a base station.

[0094] According to an aspect of the present application, the above method is characterized in that the second node comprises a Location Server (LS).

[0095] According to an aspect of the present application, the above method is characterized in that the second node comprises a Location Server (LS).

[0096] According to an aspect of the present application, the above method is characterized in that the second node comprises a Location Management Function (LMF).

[0097] According to an aspect of the present application, the above method is characterized in that the second node comprises a LTE Positioning Protocol (LPP).

[0098] According to an aspect of the present application, the above method is characterized in that the second node comprises a LTE Positioning Protocol Annex (LPPa).

[0099] The present application discloses a device of a first node for positioning in wireless communication, comprising:

[0100] a first receiver configured to receive a target signal;

[0101] a first transmitter configured to transmit a target information block;

[0102] wherein the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value depends on a time of reception of the target signal, a reception timing of a latest downlink subframe in which the target signal is received, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a signal-stimulated transmission device.

[0103] The present application discloses a device for a second node for positioning in wireless communication, comprising:

[0104] a second receiver configured to receive a target information block;

[0105] wherein the transmitter of the target information block is a first node, the first node receives a target signal from a first device; the target information block comprises a first time offset value; the first time offset value depends on a time of reception of the target signal, a reception timing of a latest downlink subframe in which the first node receives the target signal, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a signal-stimulated transmission device.

[0106] As an embodiment, compared with the conventional scheme, the present application has the following advantages, but is not limited to:

[0107] The present application supports Ambient IoT technology, has small device size, low complexity and low power consumption, is easy to be deployed in large scale, and positioning enhancement based on Ambient IoT devices helps to fully exert the advantages of Ambient IoT devices, save deployment cost, expand coverage range, and enhance positioning accuracy in non-line-of-sight environment;

[0108] It is simple to implement, and has better flexibility and adaptability;

[0109] In the present application, passive device positioning based on terminals is supported, large-scale Ambient IoT device positioning and tracking are supported, and network intelligentization is helped to be realized;

[0110] The positioning accuracy of the system is improved, and the positioning error is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0111] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof, read in conjunction with the accompanying drawings.

[0112] Figure 1 shows a flow diagram of transmissions by a first node according to one embodiment of the application;

[0113] Figure 2 shows a schematic diagram of a network architecture according to one embodiment of the application;

[0114] Figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user and control planes according to one embodiment of the application;

[0115] Figure 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;

[0116] Figure 5 shows a flow diagram of transmissions between a first node, a second node and a first device according to one embodiment of the application;

[0117] Figure 6 shows a first flow diagram of transmissions between a first node and a first device according to one embodiment of the application;

[0118] Figure 7 shows a second flow diagram of transmissions between a first node and a first device according to one embodiment of the application;

[0119] Figure 8 shows a schematic diagram of a second time offset value according to one embodiment of the application;

[0120] Figure 9 shows a schematic diagram of a first power loss value according to one embodiment of the application;

[0121] Figure 10 shows a schematic diagram of a first time offset value according to one embodiment of the application;

[0122] Figure 11 shows a schematic diagram of a deployment scenario according to one embodiment of the application;

[0123] Figure 12 shows a structural block diagram of a processing apparatus for use in a first node according to one embodiment of the application;

[0124] Figure 13 shows a structural block diagram of a processing apparatus for use in a second node according to one embodiment of the application. DETAILED DESCRIPTION

[0125] The technical solutions of the present application will be further described below in conjunction with the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict. Based on performance, flexibility, complexity, overhead and compatibility, etc., the person skilled in the art has the motivation to combine the embodiments in different drawings flexibly without conflict, including but not limited to the embodiments in Figure 1 and the embodiments in Figures 5-12, the embodiments in Figure 5 and the embodiments in Figures 6-12, etc.

[0126] Embodiment 1

[0127] Embodiment 1 illustrates a flowchart of a first node transmitting according to an embodiment of the present application, as shown in FIG. 1. In FIG. 1, each block represents a step. In particular, the order of the steps in the blocks does not represent a specific chronological order between the steps.

[0128] The first node receives a target signal in step 101, and transmits a target information block in step 102.

[0129] In Embodiment 1, the target signal is from a first device; the target information block includes a first time offset value; the first time offset value depends on a time of receiving the target signal, a receiving timing of a latest downlink subframe received to the target signal, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal excitation transmission.

[0130] As an embodiment, the first node is a user equipment (UE).

[0131] As an embodiment, the first node is a terminal.

[0132] As an embodiment, the first node is a reader.

[0133] As an embodiment, the first node is the first node described in the present application.

[0134] As an embodiment, the first node receives the target signal.

[0135] As an embodiment, the target signal is a baseband signal.

[0136] As an embodiment, the target signal is a radio frequency signal.

[0137] As an embodiment, the target signal is a wireless signal.

[0138] As an embodiment, the receiving the target signal includes monitoring the target signal.

[0139] As an embodiment, the receiving the target signal includes demodulating the target signal.

[0140] As an embodiment, the receiving the target signal includes measuring the target signal.

[0141] As one embodiment, the receiving the target signal comprises measuring a received power of the target signal.

[0142] As one embodiment, the receiving the target signal comprises measuring a time difference between an absolute time value of the target signal and a downlink timing of the first node.

[0143] As one embodiment, the receiving the target signal comprises measuring a difference between a transmission delay of the target signal and a transmission delay of a given reference signal.

[0144] As one embodiment, the target signal is from the first device.

[0145] As one embodiment, the target signal is an excitation signal transmitted by the first device.

[0146] As one embodiment, the target signal is a reflection of an excitation signal from a network device at the first device.

[0147] As one embodiment, the target signal is a backscatter of an excitation signal from a network device at the first device.

[0148] As one embodiment, the target signal is an excitation signal reflected by the first device.

[0149] As one embodiment, the target signal is an excitation signal backscattered by the first device.

[0150] As one embodiment, the target signal occupies the same spectrum resource as an excitation signal backscattered by the first device.

[0151] As one embodiment, the first device is a device employing signal excitation transmission.

[0152] As one embodiment, an uplink transmission of the first device relies on an excitation signal.

[0153] As one embodiment, a transmission of the first device relies on an excitation signal.

[0154] As one embodiment, the first device rectifies an excitation signal upon receiving the excitation signal to transmit the excitation signal.

[0155] As one embodiment, the first device modulates an excitation signal upon receiving the excitation signal to transmit the excitation signal.

[0156] As one embodiment, the excitation signal transmitted by the first device upon receiving the excitation signal is a reflection of the received excitation signal.

[0157] As one embodiment, the excitation signal transmitted by the first device after receiving the excitation signal is a backscatter of the received excitation signal.

[0158] As one embodiment, the excitation signal transmitted by the first device after receiving the excitation signal is a delayed retransmission of the received excitation signal.

[0159] As one embodiment, the excitation signal transmitted by the first device after receiving the excitation signal is a modulated retransmission of the received excitation signal.

[0160] As one embodiment, the excitation signal is not demodulated by the first device when receiving the excitation signal to transmitting the excitation signal.

[0161] As one embodiment, the excitation signal is not re-encoded by the first device when receiving the excitation signal to transmitting the excitation signal.

[0162] As one embodiment, the excitation signal is not regenerated by the first device when receiving the excitation signal to transmitting the excitation signal.

[0163] As one embodiment, the excitation signal in the present application is a baseband signal.

[0164] As one embodiment, the excitation signal in the present application is generated by a sequence.

[0165] As one embodiment, the excitation signal in the present application is a narrowband signal.

[0166] As one embodiment, the excitation signal in the present application is a CW (Carrier Wave) signal.

[0167] As one embodiment, the excitation signal in the present application is an EH (Energy Harvest) signal.

[0168] As one embodiment, the excitation signal in the present application is a radio frequency signal.

[0169] As one embodiment, the excitation signal in the present application is a wireless signal.

[0170] As one embodiment, the excitation signal in the present application includes the target signal.

[0171] As one embodiment, the excitation signal in the present application includes a carrier of the target signal.

[0172] As an embodiment, the excitation signal in the present application is a single-tone unmodulated sinusoid waveform.

[0173] As an embodiment, the excitation signal in the present application is a multi-tone unmodulated sinusoid waveform.

[0174] As an embodiment, the excitation signal in the present application occupies FDD (Frequency Division Duplexing) spectrum.

[0175] As an embodiment, the first device is a low power device.

[0176] As an embodiment, the first device is a lower power consumption device.

[0177] As an embodiment, the first device has energy storage.

[0178] As an embodiment, the first device does not have independent signal generation and signal amplification.

[0179] As an embodiment, the first device includes independent signal amplification.

[0180] As an embodiment, the first device supports backscatter communication.

[0181] As an embodiment, the first device is an Ambient IoT (Ambient Internet of Things) device.

[0182] As an embodiment, the first device has a fixed location.

[0183] As an embodiment, the location information of the first device is known at the network side.

[0184] As an embodiment, the first device is used to assist the positioning of the first node.

[0185] As an embodiment, the network device in the present application includes the second node in the present application.

[0186] As an embodiment, the network device in the present application includes the serving cell of the first node.

[0187] As an embodiment, the network device in the present application comprises a base station (Base Station, BS) serving the first node.

[0188] As an embodiment, the network device in the present application comprises a gNB serving the first node.

[0189] As an embodiment, the network device in the present application comprises an eNB serving the first node.

[0190] As an embodiment, the network device in the present application comprises an excitation source.

[0191] As an embodiment, the network device in the present application comprises an access network device.

[0192] As an embodiment, the first node transmits the target information block.

[0193] As an embodiment, the receiver of the target information block comprises a Location Server.

[0194] As an embodiment, the receiver of the target information block comprises a Location Server.

[0195] As an embodiment, the receiver of the target information block comprises a LMF (Location Management Function).

[0196] As an embodiment, the receiver of the target information block comprises a base station.

[0197] As an embodiment, the receiver of the target information block comprises a NR-RAN Node.

[0198] As an embodiment, the receiver of the target information block comprises a network side device.

[0199] As an embodiment, the receiver of the target information block comprises a core network.

[0200] As an embodiment, the receiver of the target information block comprises an LPP (LTE Positioning Protocol).

[0201] As an embodiment, the receiver of the target information block comprises an LPPa (LTE Positioning Protocol Annex).

[0202] As an embodiment, the target information block is used for LPP.

[0203] As one embodiment, the target information block is used for LPPa.

[0204] As one embodiment, the target information block is used for NRPP (NR Positioning Protocol).

[0205] As one embodiment, the target information block is used for NRPPa (NR Positioning Protocol A).

[0206] As one embodiment, the target information block is used for SPP (Sensing Positioning Protocol).

[0207] As one embodiment, the target information block is used for discovery of the first device.

[0208] As one embodiment, the target information block is used for positioning of the first device.

[0209] As one embodiment, the target information block is used for positioning of the first node.

[0210] As one embodiment, the target information block comprises the first time offset value.

[0211] As one embodiment, the target information block carries the first time offset value.

[0212] As one embodiment, the target information block indicates the first time offset value.

[0213] As one embodiment, the first time offset value is in units of milliseconds (ms).

[0214] As one embodiment, the first time offset value is in units of microseconds (μs).

[0215] As one embodiment, the first time offset value is in units of seconds (s).

[0216] As one embodiment, the first time offset value depends on the reception time of the target signal, a reception timing of a latest downlink subframe in which the target signal is received, and the target offset.

[0217] As one embodiment, the reception time of the target signal refers to a time at which the first node receives the target signal.

[0218] As an embodiment, the receiving time of the target signal refers to a starting time of the target signal determined by the first node after receiving the target signal.

[0219] As an embodiment, the receiving time of the target signal refers to a starting time of the target signal determined by the first node after receiving the target signal.

[0220] As an embodiment, the nearest downlink subframe refers to the downlink subframe nearest to a boundary of the corresponding downlink subframe.

[0221] As an embodiment, the nearest downlink subframe refers to the downlink subframe nearest to a starting time of the corresponding downlink subframe.

[0222] As an embodiment, the nearest downlink subframe refers to the downlink subframe nearest to a starting time of the corresponding downlink subframe.

[0223] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the receiving timing of the downlink subframe nearest to the starting time of the target signal received by the first node in the time domain.

[0224] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the boundary of the downlink subframe nearest to the starting time of the target signal received by the first node in the time domain.

[0225] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the receiving timing of the downlink subframe nearest to the ending time of the target signal received by the first node in the time domain.

[0226] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the boundary of the downlink subframe nearest to the ending time of the target signal received by the first node in the time domain.

[0227] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the receiving timing of the downlink subframe in which the target signal received by the first node is located.

[0228] As an embodiment, the receiving timing of the nearest downlink subframe in which the target signal is received refers to the boundary of the downlink subframe in which the target signal received by the first node is located.

[0229] As an embodiment, the receiving time of the target signal is equal to T RX1 , and the receiving timing of the nearest downlink subframe in which the target signal is received is equal to T RX2, the target offset is equal to T Shift , the first time offset value depends on a first time difference value, the first time difference value is equal to T RX1 minus T RX2 minus T Shift .

[0230] As one embodiment, the receiving time of the target signal is equal to T RX1 , the receiving timing of the latest downlink subframe in which the target signal is received is equal to T RX2 , the target offset is equal to T Shift , the first time offset value depends on a first time difference value, the first time difference value is equal to:

[0231] T RX1 -T RX2 -T Shift .

[0232] As one sub-embodiment of the above two embodiments, the first time offset value is equal to the first time difference value.

[0233] As one sub-embodiment of the above two embodiments, the first time offset value is linearly related to the first time difference value.

[0234] As one embodiment, the target offset depends on the time offset between the time domain resource configured for the target signal and the downlink subframe.

[0235] As one embodiment, the time domain resource occupied by the target signal is continuous.

[0236] As one embodiment, the time domain resource occupied by the target signal is configured by the network side.

[0237] As one embodiment, the starting position of the time domain resource occupied by the target signal is configured by the network side.

[0238] As one embodiment, the meaning that the target offset depends on the time offset between the time domain resource configured for the target signal and the downlink subframe includes that the target offset is equal to the time offset between the time domain resource configured for the target signal and the downlink subframe.

[0239] As one embodiment, the meaning that the target offset depends on the time offset between the time domain resource configured for the target signal and the downlink subframe includes that the target offset is equal to the time offset between the starting time of the first multicarrier symbol configured for the target signal and the starting time of the downlink subframe in which the target signal is located.

[0240] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that the target offset is equal to a time offset between a starting time of a first multicarrier symbol configured for the target signal and a starting time of a downlink subframe in which the target signal is located.

[0241] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that the target offset is equal to a time offset between a starting time of a last multicarrier symbol configured for the target signal and a starting time of a downlink subframe in which the target signal is located.

[0242] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that the target offset is equal to a time offset between a starting time of a last multicarrier symbol configured for the target signal and a starting time of a downlink subframe in which the target signal is located.

[0243] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that the target offset is equal to a time offset between a starting time of a first multicarrier symbol configured for the target signal and an ending time of a downlink subframe in which the target signal is located.

[0244] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that the target offset is equal to a time offset between an ending time of a first multicarrier symbol configured for the target signal and an ending time of a downlink subframe in which the target signal is located.

[0245] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that a timing of the time-domain resource configured for the target signal by the first node is offset from a downlink timing of the first node by the target offset.

[0246] As an embodiment, the meaning that the target offset depends on a time offset between the time-domain resource configured for the target signal and a downlink subframe comprises that a timing of the time-domain resource configured for the target signal by the first node is later than a downlink timing of the first node by the target offset.

[0247] As an embodiment, the meaning that the target offset depends on a time offset between the time domain resource configured for the target signal and a downlink subframe includes that a beginning of a radio frame in which the time domain resource configured for the target signal is located should be offset from a beginning of a corresponding downlink frame at the first node by the target offset.

[0248] Embodiment 2

[0249] Embodiment 2 shows a schematic diagram of a network architecture according to the present application, as shown in Figure 2.

[0250] FIG. 2 illustrates a diagram of a network architecture 200 for a 6G, 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) system. The 6G, 5G NR, or LTE network architecture 200 can be referred to as a 6GS (6G System) / 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 6GS / 5GS / EPS 200 can include one or more UEs (User Equipments) 201, NG-RANs (Next Generation Radio Access Networks) 202, 6GCs (6G Core Networks) / 5GCs (5G Core Networks) / EPCs (Evolved Packet Cores) 210, HSSs (Home Subscriber Servers) / UDMs (Unified Data Management) 220, and Internet services 230. The 6GS / 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the 6GS / 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes network nodes 203 and other network nodes 204. The network nodes 203 provide user and control plane protocol terminations toward the UEs 201. The network nodes 203 can connect to the other network nodes 204 via backhaul. The network nodes 203 can also be referred to as eNBs, gNBs, base stations, base station transceivers, radio base stations, radio transceivers, transceiver functions, basic service sets (BSSs), extended service sets (ESSs), TRPs (Transmission and Reception Points), or some other suitable terminology. The network nodes 203 provide access to the 6GC / 5GC / EPC 210 for the UEs 201. Examples of UEs 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aerial vehicles, narrowband internet of things devices, machine type communication devices, land vehicles, automobiles, wearable devices, test equipment, test instruments, test tools, or any other similar functional devices.A person of ordinary skill in the art can also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or by some other suitable terminology. Examples of Device 241 include an IoT device, an RFID device, an electronic tag, a sensor device, a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communication, satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aerial vehicle, a narrowband internet of things device, a machine type communication device, a land vehicle, an automobile, a wearable device, a test device, a test meter, a test tool, or any other similar functional device. A person of ordinary skill in the art can also refer to Device 241 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or by some other suitable terminology. Network node 203 is connected to 6GC / 5GC / EPC 210 over an S1 / NG interface. 6GC / 5GC / EPC 210 comprises MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Date Network Gateway) / UPF 213. MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 6GC / 5GC / EPC 210. Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transferred through S-GW / UPF 212, which itself is connected to P-GW / UPF 213. P-GW provides UE IP address allocation, among other functions. P-GW / UPF 213 is connected to Internet services 230.The Internet service 230 comprises operator corresponding Internet protocol services, and can specifically comprise the Internet, intranet, IMS (IP Multimedia Subsystem) and packet exchange streaming services.

[0251] As an embodiment, the UE 201 corresponds to the first node in the application.

[0252] As an embodiment, the UE 201 supports wireless communication with environmental Internet of Things devices.

[0253] As an embodiment, the sender of the target signal in the application comprises a second node.

[0254] As an embodiment, the sender of the target signal in the application comprises the node 203.

[0255] As an embodiment, the sender of the target signal in the application comprises the Device 241.

[0256] As an embodiment, the receiver of the target signal in the application comprises the UE 201.

[0257] As an embodiment, the sender of the target information block in the application comprises the UE 201.

[0258] As an embodiment, the receiver of the target information block in the application comprises the node 203.

[0259] As an embodiment, the sender of the excitation signal in the application comprises a second node.

[0260] As an embodiment, the receiver of the target information block in the application comprises a second node.

[0261] As an embodiment, the node 203 corresponds to the second node in the application.

[0262] As an embodiment, the Device 241 corresponds to the first device in the application.

[0263] As an embodiment, the first node in the application comprises the UE 201.

[0264] As an embodiment, the second node in the application comprises the node 203.

[0265] As an embodiment, the node 203 is a macro cell base station.

[0266] As one embodiment, the node 203 is a micro cell (Micro Cell) base station.

[0267] As one embodiment, the node 203 is a pico cell (Pico Cell) base station.

[0268] As one embodiment, the node 203 is a femto cell (Femtocell) base station.

[0269] As one embodiment, the node 203 is a base station device supporting large latency difference.

[0270] As one embodiment, the node 203 is a flying platform device.

[0271] As one embodiment, the node 203 is a satellite device.

[0272] As one embodiment, the node 203 is a test device (e.g. transceiver emulating part of base station functionality, signaling tester).

[0273] As one embodiment, the UE 201 is a mobile phone.

[0274] As one embodiment, the UE 201 is a vehicle including a car.

[0275] As one embodiment, the wireless link from the UE 201 to the node 203 is an uplink, which is used to perform uplink transmission.

[0276] As one embodiment, the wireless link from the node 203 to the UE 201 is a downlink, which is used to perform downlink transmission.

[0277] As one embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0278] As one embodiment, the node 203 and the UE 201 are connected through a Uu air interface.

[0279] As one embodiment, the device 241 and the UE 201 are connected through an air interface.

[0280] As one embodiment, the sender of the first information block in the present application includes the UE 201.

[0281] As one embodiment, the receiver of the first information block in the present application includes the node 203.

[0282] As one embodiment, the sender of the second information block in the present application comprises the UE 201.

[0283] As one embodiment, the receiver of the second information block in the present application comprises the node 203.

[0284] As one embodiment, the sender of the first reference signal in the present application comprises the node 203.

[0285] As one embodiment, the receiver of the first reference signal in the present application comprises the UE 201.

[0286] As one embodiment, the node 203 supports at least backscatter communication technology.

[0287] As one embodiment, the UE 201 supports at least backscatter communication technology.

[0288] As one embodiment, the UE 201 supports LPP.

[0289] As one embodiment, the UE 201 supports LPPa.

[0290] As one embodiment, the UE 201 supports NRPP.

[0291] As one embodiment, the UE 201 supports NRPPa.

[0292] As one embodiment, the UE 201 supports SPP.

[0293] As one embodiment, the node 203 supports ISAC (Integrated Sensing And Communication).

[0294] As one embodiment, the UE 201 supports ISAC.

[0295] As one embodiment, the node 203 supports at least TRP monostatic sensing model.

[0296] As one embodiment, the UE 201 supports at least UE monostatic sensing model.

[0297] As one embodiment, the node 203 supports at least TRP-UE bistatic sensing model.

[0298] As one embodiment, the UE 201 supports at least TRP-UE bistatic sensing model.

[0299] As one embodiment, the node 203 supports at least a UE-TRP bistatic sensing model.

[0300] As one embodiment, the UE 201 supports at least a UE-TRP bistatic sensing model.

[0301] As one embodiment, the node 203 supports at least a TRP-TRP bistatic sensing model.

[0302] As one embodiment, the UE 201 supports at least a UE-UE bistatic sensing model.

[0303] As one embodiment, the UE 201 supports a 5G system.

[0304] As one embodiment, the node 203 supports a 5G system.

[0305] As one embodiment, the UE 201 supports at least a 6G system.

[0306] As one embodiment, the node 203 supports at least a 6G system.

[0307] Embodiment 3

[0308] Embodiment 3 illustrates a diagram of an embodiment of a wireless protocol architecture for user plane and control plane according to one embodiment of the present application, as shown in FIG. 3.

[0309] Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (UE or RSU (Road Side Unit) in V2X (Vehicle to Everything), a vehicle mounted device or a vehicle mounted communication module) and a second node device (gNB, UE or RSU in V2X, a vehicle mounted device or a vehicle mounted communication module), or between two UEs, using three layers: Layer 1 (L1), Layer 2 (L2) and Layer 3 (L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as the PHY 301 in this document. Layer 2 305 is above the PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs, through the PHY 301. Layer 2 305 includes a MAC (Medium Access Control) sublayer 302, a RLC (Radio Link Control) sublayer 303 and a PDCP (Packet Data Convergence Protocol) sublayer 304, which are terminated at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security, by encrypting packets, and handover support for the first communication node device between second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2), which are substantially the same as the corresponding layers and sublayers in the control plane 300 for the first communication node device and the second communication node device, for the physical layer 351, the PDCP sublayer 354 in L2 355, the RLC sublayer 353 in L2 355, and the MAC sublayer 352 in L2 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in L2 355 in the user plane 350 is the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support diverse traffic types. Although not illustrated, the first communication node device can have several upper layers above L2 355, including a network layer (e.g., IP (Internet Protocol) layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0310] As one embodiment, the radio protocol architecture in FIG. 3 is applicable to the first node in the present application.

[0311] As one embodiment, the radio protocol architecture in FIG. 3 is applicable to the second node in the present application.

[0312] As one embodiment, the target information block in the present application is generated at the RRC sublayer 306.

[0313] As one embodiment, the first signal in the present application is generated at the MAC 302 or the MAC 352.

[0314] As one embodiment, the first signal in the present application is generated at the PHY 301 or the PHY 351.

[0315] As one embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0316] As one embodiment, the higher layer in the present application includes the RRC layer.

[0317] As one embodiment, the higher layer signaling in the present application includes the RRC IE.

[0318] As one embodiment, the higher layer signaling in the present application includes the RRC message.

[0319] As one embodiment, the higher layer described in the present application comprises a MAC layer.

[0320] As one embodiment, the higher layer signaling described in the present application comprises a MAC CE.

[0321] Embodiment 4

[0322] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to one embodiment of the present application, as shown in FIG. 4. FIG. 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0323] The first communication device 410 comprises a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418 and an antenna 420.

[0324] The second communication device 450 comprises a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0325] In transmissions from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements functionality of L2. In DL, the controller / processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocations for second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for Ll (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450 and mapping onto signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-ary phase shift keying (M-PSK), M-ary quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial pre-coding of the coded and modulated symbols, including codebook-based and non-codebook-based pre-coding and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps to each of the parallel streams to subcarriers, multiplexes the modulated symbols in time domain and / or frequency domain with reference signals (e.g., pilot) and then performs an inverse fast Fourier transform (IFFT) to generate time domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog pre-coding / beamforming operations on the time domain multicarrier symbol streams. Each transmitter 418 converts the baseband multicarrier symbol streams provided by the multi-antenna transmit processor 471 into radio frequency signals that are transmitted via the corresponding antennas 420.

[0326] In transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and converts the RF stream into a baseband multi-carrier symbol stream that provides to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the LI. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 converts the baseband multi-carrier symbol stream from the receive analog precoding / beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals are demultiplexed by the receive processor 456, where the reference signals will be used for channel estimation, and the data signals are recovered after multi-antenna detection in the multi-antenna receive processor 458 for any parallel streams destined to the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receive processor 456 and generate soft decisions. The receive processor 456 then decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channels. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2. The controller / processor 459 can be associated with a memory 460 that stores program codes and data. The memory 460 can be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2. Various control signals can also be provided to the L3 for L3 processing. The controller / processor 459 is also responsible for error detection using an ACK and / or negative ACK (NACK) protocol to support HARQ operations.

[0327] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer packets to a controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmit function described at the first communication device 410 in the DL, the controller / processor 459 implements header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations for the first communication device 410, implements L2 layer functionality for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. A transmit processor 468, in conjunction with a multi-antenna transmit processor 457, performs modulation mapping, channel coding processing, digital multi-antenna spatial pre-coding including codebook-based and non-codebook-based precoding, and beamforming processing, and then the transmit processor 468 generates parallel streams of symbols that are modulated onto different carriers, and the modulated symbol streams are then provided to different antennas 452 via transmitters 454 after analog pre-coding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 converts a baseband symbol stream into a radio frequency signal that is transmitted via the corresponding antenna 452.

[0328] In the transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the functionality described in connection with the reception at the second communication device 450 in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its respective antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 together implement L1 functionality. A controller / processor 475 implements L2 functionality. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the second communication device 450. Upper layer packets from the controller / processor 475 can be provided to a core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0329] As one embodiment, the second communication device 450 comprises: at least one processor and at least one memory including a computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the second communication device 450 to perform at least the following: receiving the target signal as described in the present application; transmitting the target information block as described in the present application; the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value is dependent on a time of reception of the target signal, a reception timing of a latest downlink subframe in which the target signal is received, and a target offset; the target offset is dependent on a time offset between a time domain resource configured for the target signal and a downlink subframe; the first device is a device using signal-stimulated transmission.

[0330] As one embodiment, the second communication device 450 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, causes the second communication device 450 to perform at least the following: receiving the target signal as described in the present application; transmitting the target information block as described in the present application.

[0331] As one embodiment, the first communication device 410 comprises: at least one processor and at least one memory including a computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the first communication device 410 to perform at least the following: receiving the target information block as described in the present application; the transmitter of the target information block is the second communication device 450, which receives a target signal from a first device; the target information block comprises a first time offset value; the first time offset value is dependent on a time of reception of the target signal, a reception timing of a latest downlink subframe in which the target signal is received, and a target offset; the target offset is dependent on a time offset between a time domain resource configured for the target signal and a downlink subframe; the first device is a device using signal-stimulated transmission.

[0332] As one embodiment, the first communication device 410 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, causes the first communication device 410 to perform at least the following: receiving the target information block as described in the present application.

[0333] As one embodiment, the first node as described in the present application comprises the second communication device 450.

[0334] As one embodiment, the second node as described in the present application comprises the first communication device 410.

[0335] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} is configured to transmit the target information block.

[0336] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is configured to receive the target signal.

[0337] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is configured to receive the first information block.

[0338] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} is configured to transmit the first signal.

[0339] Embodiment 5

[0340] Embodiment 5 illustrates a flow chart of the transmission between the first node, the second node and the first device according to an embodiment of the present application, as shown in FIG. 5. In FIG. 5, the first node U1 communicates with the second node N2 through a wireless link, and the first node U1 communicates with the first device D3 through a wireless link. It is particularly pointed out that the sequence in this embodiment does not limit the sequence of signal transmission and implementation in the present application.

[0341] For the first node U1, the target signal is received in step S510, and the target information block is transmitted in step S511.

[0342] For the second node N2, the target information block is received in step S520.

[0343] For the first device D3, the target signal is transmitted in step S530.

[0344] In Embodiment 5, the target signal is from a first device; the target information block includes a first time offset value; the first time offset value depends on a time instant of receiving the target signal, a receiving timing of a latest downlink subframe in which the target signal is received, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal stimulation transmission.

[0345] As an embodiment, the first node U1 is the first node in the present application.

[0346] As an embodiment, the second node N2 is the second node in the present application.

[0347] As an embodiment, the first device D3 is the first device in the present application.

[0348] As an embodiment, the first device D3 is a node device other than the first node in the present application and the second node in the present application.

[0349] As an embodiment, the second node N2 is a stimulation source of the first device D3.

[0350] As an embodiment, an air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0351] As an embodiment, an air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0352] As an embodiment, an air interface between the second node N2 and the first node U1 includes a wireless interface between a user equipment and a user equipment.

[0353] As an embodiment, the second node N2 and the first node U1 communicate through a Uu interface.

[0354] As an embodiment, the second node N2 is a maintenance base station of a serving cell of the first node U1.

[0355] As an embodiment, the target signal is transmitted wirelessly.

[0356] As an embodiment, the target signal is a feedback of the first device D3 for a stimulation signal.

[0357] As an embodiment, the target signal is a reflection of the first device D3 for a stimulation signal.

[0358] As one embodiment, the target signal is a backscatter of the excitation signal by the first device D3.

[0359] As one embodiment, the target signal is an excitation signal transmitted by the first device D3.

[0360] As one embodiment, the target signal is a reflection of an excitation signal received by the first device D3 from the network side.

[0361] As one embodiment, the target signal is a reflection of an excitation signal received by the first device D3 from the second node.

[0362] As one embodiment, the target signal is a backscatter of an excitation signal received by the first device D3 from the second node.

[0363] As one embodiment, the target signal is transmitted to the first device D3 via a network device, the first device D3 receives the target signal and then transmits the target signal.

[0364] As one embodiment, the target signal is transmitted to the first device D3 via the second node, the first device D3 receives the target signal and then transmits the target signal.

[0365] As one embodiment, the target signal is transmitted to the first device D3 via the second node, the first device D3 modulates the target signal and then transmits the target signal.

[0366] As one embodiment, the target signal is transmitted to the first device D3 via the second node, the first device D3 reflects the target signal.

[0367] As one embodiment, the physical layer channel occupied by the target signal comprises a PDRCH (Physical Device-to-Reader CHannel).

[0368] As one embodiment, the physical layer channel occupied by the target information block comprises a PUCCH (Physical Uplink Control CHannel).

[0369] As one embodiment, the physical layer channel occupied by the target information block comprises a PUSCH (Physical Uplink Shared CHannel).

[0370] As one embodiment, the step S510 precedes the step S511.

[0371] Embodiment 6

[0372] Embodiment 6 illustrates a first flowchart of a transmission between a first node and a first device according to an embodiment of the present application, as shown in FIG. 6. In FIG. 6, the first node U4 communicates with the first device D5 through a wireless link.

[0373] For the first node U4, a first information block is received in step S640.

[0374] For the first device D5, the first information block is transmitted in step S650.

[0375] In embodiment 6, the first information block includes the second time offset value as described in the present application.

[0376] As an embodiment, the first node U4 is the first node as described in the present application.

[0377] As an embodiment, the first device D5 is the first device as described in the present application.

[0378] As an embodiment, the first device D5 is a node device other than the first node as described in the present application and the second node as described in the present application.

[0379] As an embodiment, the air interface between the first node U4 and the first device D5 includes a wireless interface between a reader device and an Ambient IoT device.

[0380] As an embodiment, the air interface between the first node U4 and the first device D5 includes a wireless interface between a terminal device and an Ambient IoT device.

[0381] As an embodiment, the first information block carries an ID of the first device.

[0382] As an embodiment, the ID as described in the present application refers to: IDentify, to prove.

[0383] As an embodiment, the ID as described in the present application refers to: IDentification, identity proof.

[0384] As an embodiment, the ID as described in the present application refers to: IDentity, identity or identification.

[0385] As an embodiment, the ID as described in the present application refers to: IDentifier, identifier.

[0386] As an embodiment, the ID as described in the present application refers to: InDex, index.

[0387] As one embodiment, the first information block comprises the second time offset value.

[0388] As one embodiment, the first information block indicates the second time offset value.

[0389] As one sub-embodiment of this embodiment, the first information block explicitly indicates the second time offset value.

[0390] As one sub-embodiment of this embodiment, the first information block implicitly indicates the second time offset value.

[0391] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a type of the first device, the type of the first device being used for determining the second time offset value.

[0392] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a Category of the first device, the Category of the first device being used for determining the second time offset value.

[0393] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a Feature of the first device, the Feature of the first device being used for determining the second time offset value.

[0394] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a Feature Combination of the first device, the Feature Combination of the first device being used for determining the second time offset value.

[0395] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a Capability of the first device, the Capability of the first device being used for determining the second time offset value.

[0396] As one dependent embodiment of this sub-embodiment, the implicit indication implies that the first information block indicates a UE Assistance Information of the first device, the UE Assistance Information of the first device being used for determining the second time offset value.

[0397] As an affiliated embodiment of this sub-embodiment, the implicit indication means that the first information block indicates a UECapabilitylnformation of the first device, and the UECapabilitylnformation of the first device is used to determine the second time offset value.

[0398] As an embodiment, the target signal comprises the first information block.

[0399] As an embodiment, the target signal carries the first information block.

[0400] As an embodiment, the first node determines the second time offset value by a time of receiving the target signal.

[0401] As an embodiment, the first information block is transmitted in a PDRCH.

[0402] As an embodiment, the target signal carries the first information block, and the step S530 in FIG. 5 comprises the step S650.

[0403] As an embodiment, the step S640 is before the step S510 in FIG. 5.

[0404] As an embodiment, the step S640 is before the step S511 in FIG. 5.

[0405] As an embodiment, the step S640 is after the step S510 in FIG. 5.

[0406] Embodiment 7

[0407] Embodiment 7 illustrates a second flowchart of transmission between a first node and a first device according to an embodiment of the present application, as shown in FIG. 7. In FIG. 7,

[0408] For the first node U6, a first signal is sent in step S760.

[0409] For the first device D7, the first signal is received in step S770.

[0410] In embodiment 7, the first signal is used to trigger the first information block.

[0411] As an embodiment, the first node U6 is the first node in the present application.

[0412] As an embodiment, the first device D7 is the first device in the present application.

[0413] As one embodiment, the first device D7 is a node device other than the first node and the second node in the present application.

[0414] As one embodiment, the first signal is broadcasted.

[0415] As one embodiment, the first signal is common to a group of devices.

[0416] As one embodiment, the first signal is used to trigger transmission of the first information block in the present application.

[0417] As one embodiment, the first signal comprises scheduling information of the first information block in the present application.

[0418] As one embodiment, the first signal comprises control information scheduling the first information block in the present application.

[0419] As one embodiment, the first signal is a Request for the first device.

[0420] As one embodiment, the first information block in the present application is a feedback for the first signal.

[0421] As one embodiment, the second time offset value depends on a time difference between a reception time of the first information block and a transmission time of the first signal.

[0422] As one embodiment, the reception time of the first information block comprises a reception time of a wireless signal carrying the first information block.

[0423] As one embodiment, the wireless signal carrying the first information block is a reflection of the first signal.

[0424] As one embodiment, the first node determines the first time offset value according to the transmission time of the first signal and the reception time of the first information block.

[0425] As one sub-embodiment of this embodiment, the first node assumes that a transmission delay of the first node to the first device is known, and the first time offset value is equal to a time difference between the reception time of the first information block and the transmission time of the first signal minus twice the transmission delay of the first node to the first device.

[0426] As one dependent embodiment of this sub-embodiment, the transmission delay is fixed.

[0427] As one dependent embodiment of this sub-embodiment, the transmission delay is predefined.

[0428] As an implementation of the sub-embodiment, the transmission delay is equal to 0.

[0429] As an implementation of the sub-embodiment, the first node determines the transmission delay from the first node to the first device by measurement.

[0430] As an implementation, the first signal is the excitation signal received by the first device, and the wireless signal carrying the first information block is the excitation signal sent by the first device.

[0431] As an implementation, the physical layer channel occupied by the first signal includes a PRDCH (Physical Reader-to-Device CHannel).

[0432] As an implementation, the step S760 is before the step S510 in FIG. 5; and the step S770 is before the step S530 in FIG. 5.

[0433] As an implementation, the step S760 is before the step S640 in FIG. 6; and the step S770 is before the step S650 in FIG. 6.

[0434] Embodiment 8

[0435] Embodiment 8 illustrates a diagram of a second time offset value according to an embodiment of the present application, as shown in FIG. 8. In FIG. 8, the second time offset value is equal to a time delay between a receiving time of an excitation signal at the first device and a sending time of the excitation signal at the first device.

[0436] In embodiment 8, the first time offset value depends on the second time offset value.

[0437] As an implementation, the unit of the second time offset value is millisecond.

[0438] As an implementation, the unit of the second time offset value is microsecond.

[0439] As an implementation, the unit of the second time offset value is second.

[0440] As an implementation, the receiving time of the excitation signal at the first device refers to a starting time of receiving the excitation signal by the first device.

[0441] As an implementation, the receiving time of the excitation signal at the first device refers to an ending time of receiving the excitation signal by the first device.

[0442] As an embodiment, the transmission time of the excitation signal at the first device refers to the starting time of the backscattering signal of the excitation signal transmitted by the first device.

[0443] As an embodiment, the transmission time of the excitation signal at the first device refers to the starting time of the reflection signal of the excitation signal transmitted by the first device.

[0444] As an embodiment, the transmission time of the excitation signal at the first device refers to the ending time of the backscattering signal of the excitation signal transmitted by the first device.

[0445] As an embodiment, the transmission time of the excitation signal at the first device refers to the ending time of the reflection signal of the excitation signal transmitted by the first device.

[0446] As an embodiment, the excitation signal is transmitted by the first device after being modulated by the first device.

[0447] As an embodiment, the excitation signal is transmitted by the first device after being delayed by the first device.

[0448] As an embodiment, the excitation signal is transmitted by the first device after being reflected by the first device.

[0449] As an embodiment, the time delay comprises a processing time delay of the first device.

[0450] As an embodiment, the time delay comprises a radio frequency time delay of the first device.

[0451] As an embodiment, the time delay depends on T R2D_min .

[0452] As an embodiment, the time delay is not less than T R2D_min .

[0453] As an embodiment, the first time offset value depends on a second time offset value.

[0454] As an embodiment, the first time offset value is equal to the first time difference value in the present application minus the second time offset value.

[0455] Embodiment 9

[0456] Embodiment 9 illustrates a diagram of a first power loss value according to an embodiment of the present application, as shown in FIG. 9. In FIG. 9, the first power loss value is equal to the power loss of the excitation signal between the first device receiving and transmitting.

[0457] In embodiment 9, the first information block comprises a first power loss value.

[0458] As one embodiment, the first power loss value is in units of deciBel (dB).

[0459] As one embodiment, the first power loss value is in units of Watt (W).

[0460] As one embodiment, the first power loss value is in units of milliWatt (mW).

[0461] As one embodiment, the first power loss value depends on a type of the first device.

[0462] As one embodiment, the first power loss value depends on a Category of the first device.

[0463] As one embodiment, the first power loss value depends on a Feature of the first device.

[0464] As one embodiment, the first power loss value depends on a FeatureCombination of the first device.

[0465] As one embodiment, the first power loss value depends on a Capability of the first device.

[0466] As one embodiment, the first power loss value depends on a UEAssistanceInformation of the first device.

[0467] As one embodiment, the first power loss value depends on a UECapabilityInformation of the first device.

[0468] As one embodiment, the first information block indicates the first power loss value.

[0469] As one sub-embodiment of this embodiment, the first information block explicitly indicates the first power loss value.

[0470] As one sub-embodiment of this embodiment, the first information block implicitly indicates the first power loss value.

[0471] As one sub-embodiment of this sub-embodiment, the first information block indicates a type of the first device, the type of the first device being used to determine the first power loss value.

[0472] As a dependent embodiment of this sub-embodiment, the first information block indicates a Category of the first device, the Category of the first device being used to determine the first power loss value.

[0473] As a dependent embodiment of this sub-embodiment, the first information block indicates a Feature of the first device, the Feature of the first device being used to determine the first power loss value.

[0474] As a dependent embodiment of this sub-embodiment, the first information block indicates a FeatureCombination of the first device, the FeatureCombination of the first device being used to determine the first power loss value.

[0475] As a dependent embodiment of this sub-embodiment, the first information block indicates a Capability of the first device, the Capability of the first device being used to determine the first power loss value.

[0476] As a dependent embodiment of this sub-embodiment, the first information block indicates a UEAssistanceInformation of the first device, the UEAssistanceInformation of the first device being used to determine the first power loss value.

[0477] As a dependent embodiment of this sub-embodiment, the first information block indicates a UECapabilityInformation of the first device, the UECapabilityInformation of the first device being used to determine the first power loss value.

[0478] As an embodiment, the first node determines the first power loss value by receiving a target signal carrying the first information block.

[0479] As a sub-embodiment of this embodiment, the first node determines the first power loss value by a received power value of the target signal.

[0480] As an embodiment, a power value of the excitation signal received by the first device is a first power value, a power value of the excitation signal transmitted by the first device is a second power value, and the first power loss value is equal to a difference between the first power value and the second power value.

[0481] As a sub-embodiment of the embodiment, the first power value is in unit of dBm (decibel relative to one milliwatt), and the second power value is in unit of dBm.

[0482] As an embodiment, the first power loss value does not include the effect of reflection amplifier of the first device.

[0483] As an embodiment, the first information block indicates whether the first device turns on reflection amplifier.

[0484] As an embodiment, the first information block indicates whether the first device includes independent amplifier.

[0485] As an embodiment, the first information block indicates whether the first device has signal amplification function.

[0486] As an embodiment, the first information block indicates the power amplification value of the first device.

[0487] As an embodiment, the first device does not perform measurement on the excitation signal corresponding to the target signal.

[0488] As an embodiment, the transmission power of the excitation signal corresponding to the target signal is pre-configured.

[0489] As an embodiment, the transmission power of the excitation signal corresponding to the target signal is predefined.

[0490] As an embodiment, the transmission power of the excitation signal corresponding to the target signal is known by the terminal.

[0491] As an embodiment, the transmission power of the excitation signal corresponding to the target signal is dependent on the type of the first device.

[0492] As an embodiment, the transmission power of the excitation signal corresponding to the target signal is dependent on the location of the first node.

[0493] As an embodiment, the target information block in the present application includes the first power loss value.

[0494] As an embodiment, the target information block in the present application carries the first power loss value.

[0495] As an embodiment, the first time offset value and the first power loss value in the present application are used together for positioning of the first node.

[0496] As an embodiment, the first time offset value and the first power loss value are used together for positioning of the first device.

[0497] Embodiment 10

[0498] Embodiment 10 illustrates a diagram of a first time offset value according to an embodiment of the present application, as shown in FIG. 10. In FIG. 10, the first row corresponds to a transmission timing of a second node in the present application, wherein a rectangle without filling represents a subframe, the second row corresponds to a reception timing of a downlink of a first node in the present application, T3 corresponds to a reception time of a target signal at the first node, a reception timing of a nearest downlink subframe of the target signal corresponds to T2, and an offset between a time domain resource configured for the target signal and a downlink subframe corresponds to T1; the second time offset value depends on T3, T2 and T1; wherein the oblique line filled rectangle in the diagram is a time domain resource occupied by the target signal.

[0499] As an embodiment, the first time offset value is equal to a value of T3 minus T2 minus T1.

[0500] As an embodiment, the first time offset value is equal to a value of T3 minus T2 minus T1 minus the target offset in the present application.

[0501] As an embodiment, the first time offset value is equal to a value of T3 minus T2 minus T1 minus the target offset in the present application minus the second offset in the present application.

[0502] Embodiment 11

[0503] Embodiment 11 illustrates a diagram of a deployment scenario according to an embodiment of the present application, as shown in FIG. 11. In FIG. 11, a first device 1103 receives an excitation signal from a base station 1102, a transmission path of the excitation signal includes a path 2.1; subsequently, the first device 1102 transmits a target signal, the target signal is received by a terminal 1101 through a path 2.2; the terminal 1101 and the base station 1102 are at least downlink synchronized.

[0504] As an embodiment, the first device in the present application includes the first device 1103.

[0505] As an embodiment, the first node in the present application includes the terminal 1101.

[0506] As an embodiment, the second node in the present application includes the base station 1102.

[0507] As one embodiment, the terminal 1101 is a reader of the first device.

[0508] As one embodiment, the PDRCH is transmitted on the path 2.2.

[0509] As one embodiment, the target signal is transmitted on the path 2.2.

[0510] As one embodiment, the excitation signal in this application is transmitted on the path 2.1.

[0511] As one embodiment, the first time offset value is equal to the transmission delay of the path 1 and the transmission delay between the path 2.1 and the path 2.2.

[0512] As one embodiment, the reception timing of the latest downlink subframe in which the target signal is received is used to determine the transmission delay of the wireless signal on the path 1.

[0513] As one embodiment, the transmission delay of the target signal depends on the transmission delay of the excitation signal on the path 2.1 and the transmission delay of the target signal on the path 2.2.

[0514] As one embodiment, the first time offset value is equal to the sum of the transmission delay of the wireless signal on the path 2.1 and the transmission delay on the path 2.2 minus the difference of the transmission delay of the wireless signal in the path 1.

[0515] As one embodiment, the first time offset value is equal to the sum of the transmission delay of the wireless signal on the path 2.1, the transmission delay on the path 2.2, the second time offset value in this application minus the difference of the transmission delay of the wireless signal in the path 1.

[0516] Embodiment 12

[0517] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to one embodiment of the present application, as shown in FIG. 12. In FIG. 12, the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0518] In embodiment 12, the first receiver 1201 receives a target signal; the first transmitter 1202 sends a target information block.

[0519] In Embodiment 12, the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value depends on a time instance of receiving the target signal, a reception timing of a latest downlink subframe in which the target signal is received, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal stimulus transmission.

[0520] As an embodiment, the target signal is a feedback of the first device for a stimulus signal.

[0521] As an embodiment, the first time offset value depends on a second time offset value, and the second time offset value is equal to a time delay between a time instance of receiving the stimulus signal at the first device and a time instance of transmitting the stimulus signal at the first device.

[0522] As an embodiment, the first receiver 1201 receives a first information block; and the first information block comprises the second time offset value.

[0523] As an embodiment, the first information block comprises a first power loss value, and the first power loss value is equal to a power loss of the stimulus signal between a time instance of receiving at the first device and a time instance of transmitting at the first device.

[0524] As an embodiment, the first transmitter 1202 transmits a first signal; and the first signal is used to trigger the first information block.

[0525] As an embodiment, the first time offset value depends on a time difference between a time instance of receiving the first information block and a time instance of transmitting the first signal.

[0526] As an embodiment, the first signal is broadcasted.

[0527] As an embodiment, the first signal is common for a group of devices.

[0528] As an embodiment, the first power loss value and the first time offset value are jointly used for positioning of the first node.

[0529] As an embodiment, the first power loss value and the first time offset value are jointly used for positioning of the first device.

[0530] As an embodiment, the time instance of receiving the target signal is equal to T RX1 , the reception timing of the latest downlink subframe in which the target signal is received is equal to T RX2 , the target offset is equal to T Shift , and the first time offset value depends on a first time difference value, and the first time difference value is equal to TRX1 T RX2 T Shift T

[0531] As an embodiment, the reception time of the target signal is equal to T RX1 , the reception timing of the latest downlink subframe in which the target signal is received is equal to T RX2 , the target offset is equal to T Shift , and the first time offset value depends on a first time difference value, which is equal to: T RX1 -T RX2 -T Shift .

[0532] As a sub-embodiment of the above two embodiments, the first time offset value is equal to the first time difference value.

[0533] As a sub-embodiment of the above two embodiments, the first time offset value is linearly related to the first time difference value.

[0534] As an embodiment, the first node 1200 is a user equipment.

[0535] As an embodiment, the first node 1200 is a terminal.

[0536] As an embodiment, the first node 1200 is a relay node equipment.

[0537] As an embodiment, the first node 1200 is a reader equipment.

[0538] As an embodiment, the first receiver 1201 comprises at least one of {the antenna 452, the receiver 454, the reception processor 456, the multi-antenna reception processor 458, the controller / processor 459, the memory 460, the data source 467} in Embodiment 4.

[0539] As an embodiment, the first transmitter 1202 comprises at least one of {the antenna 452, the transmitter 454, the transmission processor 468, the multi-antenna transmission processor 457, the controller / processor 459, the memory 460, the data source 467} in Embodiment 4.

[0540] Embodiment 13

[0541] Embodiment 13 illustrates a structure block diagram of a processing apparatus in a second node according to an embodiment of the present application, as shown in Figure 13. In Figure 13, the processing apparatus 1300 in the second node comprises a second transmitter 1301 and a second receiver 1302.

[0542] In Embodiment 13, the second receiver 1302 receives a target information block.

[0543] In Embodiment 13, the sender of the target information block is a first node, the first node receives a target signal from a first device; the target information block comprises a first time offset value; the first time offset value depends on a receiving time of the target signal, a receiving timing of a latest downlink subframe in which the first node receives the target signal, and a target offset; the target offset depends on a time offset between a time domain resource configured for the target signal and a downlink subframe; the first device is a device using signal excitation transmission.

[0544] As one embodiment, the target signal is a feedback of the first device for an excitation signal.

[0545] As one embodiment, the second transmitter 1301 transmits the excitation signal.

[0546] As one embodiment, the first time offset value depends on a second time offset value, the second time offset value is equal to a time delay between a receiving time of the excitation signal at the first device and a transmitting time of the excitation signal at the first device.

[0547] As one embodiment, the first node receives a first information block; the first information block comprises the second time offset value.

[0548] As one embodiment, the first information block comprises a first power loss value, the first power loss value is equal to a power loss of the excitation signal between receiving and transmitting at the first device.

[0549] As one embodiment, the first node transmits a first signal; the first signal is used to trigger the first information block.

[0550] As one embodiment, the first time offset value depends on a time difference between a receiving time of the first information block and a transmitting time of the first signal.

[0551] As one embodiment, the first signal is broadcasted.

[0552] As one embodiment, the first signal is common for a group of devices.

[0553] As one embodiment, the first power loss value and the first time offset value are jointly used for positioning of the first node.

[0554] As one embodiment, the first power loss value and the first time offset value are jointly used for positioning of the first device.

[0555] As one embodiment, the reception time of the target signal is equal to T RX1 , the reception timing of the latest downlink subframe in which the target signal is received is equal to T RX2 , the target offset is equal to T Shift , and the first time offset value depends on a first time difference value, which is equal to T RX1 minus T RX2 minus T Shift .

[0556] As one embodiment, the reception time of the target signal is equal to T RX1 , the reception timing of the latest downlink subframe in which the target signal is received is equal to T RX2 , the target offset is equal to T Shift , and the first time offset value depends on a first time difference value, which is equal to:

[0557] T RX1 -T RX2 -T Shift .

[0558] As one sub-embodiment of the above two embodiments, the first time offset value is equal to the first time difference value.

[0559] As one sub-embodiment of the above two embodiments, the first time offset value is linearly related to the first time difference value.

[0560] As one embodiment, the second node 1300 is a base station device.

[0561] As one embodiment, the second node 1300 is a user equipment.

[0562] As one embodiment, the second node 1300 is a TRP.

[0563] As one embodiment, the second node 1300 is an exciter device.

[0564] As one embodiment, the second transmitter 1301 comprises at least one of {the antenna 420, the transmitter 418, the transmit processor 413, the multi-antenna transmit processor 471, the controller / processor 475, the memory 476} in embodiment 4.

[0565] As an embodiment, the second receiver 1302 comprises at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, the memory 476} in embodiment 4.

[0566] Those skilled in the art can understand that all or part of the steps in the above method can be instructed by a program to complete the relevant hardware, and the program can be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk, etc. Alternatively, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in the present application include but are not limited to unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control aircraft, aircraft, small aircraft, mobile phones, tablets, notebooks, vehicle-mounted communication devices, vehicles, vehicles, RSUs, wireless sensors, network cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system device in the present application includes but is not limited to macro cellular base stations, micro cellular base stations, small cellular base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, air base stations, RSUs, unmanned aerial vehicles, test equipment such as transceivers or signaling testers that simulate part of the functions of base stations, and other wireless communication devices.

[0567] Those skilled in the art will understand that the present application can be implemented by other specified forms without departing from the core or essential characteristics thereof. Therefore, the presently disclosed embodiments should in no way be considered as descriptive rather than limiting. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within the equivalent meaning and range thereof are considered to be included therein.

Claims

A method in a terminal used for positioning in wireless communication, characterized by The method comprises: receiving a target signal; sending a target information block; wherein the target signal is from a first device; the target information block comprises a first time offset value; the first time offset value depends on a time of receiving the target signal, a time of receiving a latest downlink subframe in which the target signal is received, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal stimulation transmission. The method of claim 1, wherein The target signal is feedback of the first device for a stimulation signal. The method according to claim 1 or 2, characterized in that The first time offset value depends on a second time offset value, which is equal to a time delay between a time of receiving the stimulation signal at the first device and a time of sending the stimulation signal at the first device. The method according to claim 3, characterized in that The method comprises: receiving a first information block; wherein the first information block comprises the second time offset value. The method according to claim 4, characterized in that The first information block comprises a first power loss value, which is equal to a power loss of the stimulation signal between receiving and sending at the first device. The method according to claim 4 or 5, characterized in that The method comprises: sending a first signal; wherein the first signal is used to trigger the first information block. The method according to claim 6, characterized in that The first time offset value depends on a time difference between a time of receiving the first information block and a time of sending the first signal. A terminal, characterized in that, the terminal comprises one or more processors and a memory; the memory is coupled to the one or more processors, and the memory is configured to store computer program codes, the computer program codes comprising computer instructions, and the one or more processors are configured to invoke the computer instructions to cause the terminal to perform the method according to any one of claims 1-7. A method in a base station used for positioning in wireless communication, characterized by The method comprises: receiving a target information block; wherein a sender of the target information block is a terminal, and the terminal receives a target signal from a first device; the target information block comprises a first time offset value; the first time offset value depends on a time of receiving the target signal, a time of receiving a latest downlink subframe in which the target signal is received at the terminal, and a target offset; the target offset depends on a time offset between a time-domain resource configured for the target signal and a downlink subframe; and the first device is a device using signal stimulation transmission. The method of claim 9, wherein The target signal is feedback of the first device for a stimulation signal. The method according to claim 9 or 10, characterized in that The first time offset value depends on a second time offset value, which is equal to a time delay between a time of receiving the stimulation signal at the first device and a time of sending the stimulation signal at the first device. The method of claim 11, wherein The terminal receives a first information block; and the first information block comprises the second time offset value. The method of claim 12, wherein The first information block comprises a first power loss value, which is equal to a power loss of the stimulation signal between receiving and sending at the first device. The method according to claim 12 or 13, characterized in that The terminal sends a first signal; and the first signal is used to trigger the first information block. The method of claim 14, wherein The first time offset value depends on a time difference between a time of receiving the first information block and a time of sending the first signal. A base station, characterized in that, The base station comprises one or more processors and a memory; The memory is coupled with the one or more processors, and the memory is configured to store computer program codes including computer instructions, and the one or more processors are configured to invoke the computer instructions to cause the base station to perform the method according to any one of claims 9-15.

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