Method and apparatus used in node for wireless communication

Abstract

The present application discloses a method and apparatus used in a node for wireless communication. A first transceiver uses a first radio access technology to operate a first signal; and the first transceiver uses a second radio access technology to operate a second signal, parameters of a channel experienced by the first signal being used for inferring parameters of a channel experienced by the second signal, wherein the first radio access technology is different from the second radio access technology; and the operation is transmission or reception.

Description

A method and device used in a node for wireless communication Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0002] Future wireless communication networks need to take people as the center of their development vision and meet the communication needs of high reliability, low latency, high transmission rate services, high system coverage, and the Internet of Everything. Sharing resources between different wireless access technologies is an important aspect of enhancing future wireless communication networks.

[0003] In wireless communications, the acquisition of channel information is directly related to the quality of communication performance; for a wireless access technology, obtaining more channel information helps improve communication performance.

[0004] Summary of the Invention

[0005] How to share resources among multiple wireless access technologies is an important issue that needs to be considered in the research of future wireless communications; this application discloses a solution to the above problem. It should be noted that this application can be applied to a variety of wireless communication scenarios, such as mobile communication networks, wireless local area networks, vehicle networks, the Internet of Things, etc., and achieve similar technical effects. In addition, the use of a unified solution for different scenarios (including but not limited to mobile communication networks, wireless local area networks, vehicle networks, and the Internet of Things) can also help reduce hardware complexity and cost, or improve performance. In the absence of conflict, the embodiments and features in any node of this application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other arbitrarily.

[0006] When necessary, the interpretation of the terms in this application may refer to the description of the specification protocols TS37 series, TS38 series and higher versions of 3GPP (3rd Generation Partner Project).

[0007] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0008] operating the first signal using a first radio access technology;

[0009] operating a second signal using a second radio access technology, wherein parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal;

[0010] The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

[0011] As an embodiment, the problem to be solved by the present application includes: how to improve the utilization efficiency of channel parameter information in a heterogeneous network.

[0012] As an embodiment, the problem to be solved by the present application includes: how to infer the parameters of the channel traversed by the second signal.

[0013] As an embodiment, the benefits of the above method include: improving communication performance by sharing channel parameters among multiple wireless access technologies.

[0014] As an embodiment, the above method has the following benefits: by sharing channel parameter information between different wireless access technologies, the utilization efficiency of channel measurement is improved.

[0015] As an embodiment, for a wireless access technology, the above method can improve signal transmission performance by obtaining more channel parameter information compared to a method that only uses channel parameter information within the wireless access technology.

[0016] As an embodiment, the benefits of the above method include: facilitating optimization of network configuration by sharing channel parameter information among different wireless access technologies.

[0017] As an embodiment, the benefits of the above method include: improving the utilization efficiency of channel parameter information.

[0018] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0019] As an embodiment, the benefits of the above method include: facilitating collaboration between multiple wireless access technologies to improve wireless network performance.

[0020] According to one aspect of the present application, the above method is characterized in that:

[0021] The parameters of the channel experienced by the first signal include large-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include large-scale characteristics of the channel experienced by the second signal.

[0022] As an embodiment, the above method has the following benefits: it is helpful to optimize the transmission performance of the second signal based on the inference of the large-scale characteristics of the channel experienced by the second signal.

[0023] According to one aspect of the present application, the above method is characterized in that:

[0024] The parameters of the channel experienced by the first signal include small-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include small-scale characteristics of the channel experienced by the second signal.

[0025] As an embodiment, the above method has the following benefits: it is helpful to optimize the transmission performance of the second signal based on the inference of the small-scale characteristics of the channel experienced by the second signal.

[0026] According to one aspect of the present application, the above method is characterized in that it includes:

[0027] receiving a first signaling;

[0028] Wherein, based on the indication of the first signaling, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

[0029] According to one aspect of the present application, the above method is characterized in that:

[0030] The first signaling indicates that the second signal and the first signal are in a quasi co-location relationship.

[0031] According to one aspect of the present application, the above method is characterized in that:

[0032] The transmission / reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0033] As an embodiment, the benefits of the above method include: being conducive to improving the transmission performance of the second signal.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] operating a third signal using the first radio access technology;

[0036] The parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0037] As an embodiment, the characteristics of the above method include: the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the signal operated using the second wireless access technology, and are also used to infer the parameters of the channel experienced by the signal operated using the first wireless access technology.

[0038] As an embodiment, the advantages of the above method include: high utilization efficiency of channel parameter information.

[0039] According to one aspect of the present application, the above method is characterized in that:

[0040] The first wireless access technology is a wireless access technology used in a cellular network, and the second wireless access technology is a wireless access technology used in a non-cellular network.

[0041] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0042] operating the first signal using a first radio access technology;

[0043] operating a second signal using a second radio access technology, wherein parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal;

[0044] The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

[0045] According to one aspect of the present application, the above method is characterized in that:

[0046] The parameters of the channel experienced by the first signal include large-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include large-scale characteristics of the channel experienced by the second signal.

[0047] According to one aspect of the present application, the above method is characterized in that:

[0048] The parameters of the channel experienced by the first signal include small-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include small-scale characteristics of the channel experienced by the second signal.

[0049] According to one aspect of the present application, the above method is characterized in that it includes:

[0050] Sending a first signaling;

[0051] Wherein, based on the indication of the first signaling, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

[0052] According to one aspect of the present application, the above method is characterized in that:

[0053] The first signaling indicates that the second signal and the first signal are in a quasi co-location relationship.

[0054] According to one aspect of the present application, the above method is characterized in that:

[0055] The transmission / reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0056] According to one aspect of the present application, the above method is characterized in that it includes:

[0057] operating a third signal using the first radio access technology;

[0058] The parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0059] According to one aspect of the present application, the above method is characterized in that:

[0060] The first wireless access technology is a wireless access technology used in a cellular network, and the second wireless access technology is a wireless access technology used in a non-cellular network.

[0061] The present application discloses a first node used for wireless communication, characterized by comprising:

[0062] a first transceiver that operates on a first signal using a first wireless access technology;

[0063] The first transceiver operates a second signal using a second radio access technology, and parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal;

[0064] The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

[0065] The present application discloses a second node used for wireless communication, characterized by comprising:

[0066] a second transceiver that operates on the first signal using the first wireless access technology;

[0067] The second transceiver operates a second signal using a second radio access technology, and parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal;

[0068] The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0070] FIG1 shows a processing flow chart of a first node according to an embodiment of the present application;

[0071] FIG2 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0072] FIG3 shows a signal transmission flow chart according to an embodiment of the present application;

[0073] FIG4 shows a signal transmission flow chart according to an embodiment of the present application;

[0074] FIG5 shows a signal transmission flow chart according to an embodiment of the present application;

[0075] FIG6 shows a signal transmission flow chart according to an embodiment of the present application;

[0076] FIG7 is a schematic diagram illustrating parameters of a channel traversed by a first signal and parameters of a channel traversed by a second signal according to an embodiment of the present application;

[0077] FIG8 shows a schematic diagram illustrating first signaling according to an embodiment of the present application;

[0078] FIG9 is a schematic diagram showing a relationship between a second signal and inferred parameters of a channel traversed by the second signal according to an embodiment of the present application;

[0079] FIG10 is a schematic diagram illustrating a fourth signal according to an embodiment of the present application;

[0080] FIG11 is a schematic diagram illustrating a third signal according to an embodiment of the present application;

[0081] FIG12 shows a structural block diagram of a processing device in a first node device according to an embodiment of the present application;

[0082] FIG13 shows a structural block diagram of a processing device in a second node device according to an embodiment of the present application. DETAILED DESCRIPTION

[0083] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

[0084] Example 1

[0085] Example 1 illustrates a processing flow chart of a first node according to an embodiment of the present application, as shown in FIG1 .

[0086] In embodiment 1, the first node in the present application operates a first signal using a first radio access technology in step 101; and operates a second signal using a second radio access technology in step 102.

[0087] In embodiment 1, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; the first radio access technology is different from the second radio access technology; the operation is sending, or the operation is receiving.

[0088] As an embodiment, the expression “operating the first signal” means: transmitting the first signal.

[0089] As an embodiment, the expression “operating the first signal” means: receiving the first signal.

[0090] As an embodiment, the first signal is a wireless signal.

[0091] As an embodiment, the first signal carries control information.

[0092] As an embodiment, the first signal carries user data.

[0093] As an embodiment, the first signal is transmitted in a wireless access network that adopts the first wireless access technology.

[0094] As an embodiment, the first signal is sent / received on a wireless channel defined in the first wireless access technology.

[0095] As an embodiment, the first signal is transmitted via a wireless interface defined in the first radio access technology.

[0096] As an embodiment, the expression “operating the second signal” means: sending the second signal.

[0097] As an embodiment, the expression “operating the second signal” means: receiving the second signal.

[0098] As an embodiment, the first node sends the first signal and sends the second signal.

[0099] As an embodiment, the first node sends the first signal and receives the second signal.

[0100] As an embodiment, the first node receives the first signal and receives the second signal.

[0101] As an embodiment, the first node receives the first signal and receives the second signal.

[0102] As an embodiment, the second signal is a wireless signal.

[0103] As an embodiment, the second signal carries control information.

[0104] As an embodiment, the second signal carries user data.

[0105] As an embodiment, the second signal is transmitted in a wireless access network that adopts the second wireless access technology.

[0106] As an embodiment, the second signal is sent / received on a wireless channel defined in the second radio access technology.

[0107] As an embodiment, the second signal is transmitted via a wireless interface defined in the second radio access technology.

[0108] As an embodiment, when a signal (or information) is sent / received on a wireless channel defined in a wireless access technology, the signal (or the information) is a signal (or information) sent / received using this wireless access technology.

[0109] As an embodiment, when a signal (or information) is transmitted / received via a wireless interface defined in a wireless access technology, the signal (or the information) is a signal (or information) transmitted / received using the wireless access technology.

[0110] As an embodiment, when a signal (or information) is sent / received using a transmission format defined in a wireless access technology, the signal (or the information) is a signal (or information) sent / received using this wireless access technology.

[0111] As an embodiment, the first wireless access technology is a wireless access technology for mobile communications, and the second wireless access technology is not a wireless access technology for mobile communications.

[0112] As an embodiment, the second wireless access technology is a wireless access technology for mobile communications, and the first wireless access technology is not a wireless access technology for mobile communications.

[0113] As an embodiment, the first wireless access technology is a wireless access technology of mobile communication, and the second wireless access technology is a wireless access technology of WLAN (Wireless Local Area Networks).

[0114] As an embodiment, the first wireless access technology is a wireless access technology of mobile communication, and the second wireless access technology is a wireless access technology of Bluetooth.

[0115] As an embodiment, the second wireless access technology is a wireless access technology of mobile communication, and the first wireless access technology is a wireless access technology of WLAN.

[0116] As an embodiment, the second wireless access technology is a wireless access technology of mobile communication, and the first wireless access technology is a wireless access technology of Bluetooth.

[0117] As an embodiment, the above method has the following benefits: it is conducive to sharing information between wireless access technologies for mobile communications and wireless access technologies other than mobile communications, and provides a basis for optimizing heterogeneous networks including mobile communication networks and other networks.

[0118] As an embodiment, the first wireless access technology is a wireless access technology used for a cellular network, and the second wireless access technology is a wireless access technology used for a non-cellular network.

[0119] As an embodiment, the second wireless access technology is a wireless access technology used for a cellular network, and the first wireless access technology is a wireless access technology used for a non-cellular network.

[0120] As an embodiment, the first wireless access technology and the second wireless access technology are different cellular network wireless access technologies.

[0121] As an embodiment, the first wireless access technology is a wireless access technology for mobile communications.

[0122] As an embodiment, the first wireless access technology is 5G (fifth generation mobile communication) wireless access technology.

[0123] As an embodiment, the first wireless access technology is 6G (sixth generation mobile communication) wireless access technology.

[0124] As an embodiment, the benefits of the above method include: being conducive to realizing resource sharing between 6G wireless access technology and other wireless access technologies.

[0125] As an embodiment, the first wireless access technology is a wireless access technology above 6G.

[0126] As an embodiment, the benefits of the above method include: being conducive to realizing resource sharing between wireless access technologies above 6G and other wireless access technologies.

[0127] As an embodiment, the first wireless access technology is a WLAN wireless access technology.

[0128] As an embodiment, the first wireless access technology is Bluetooth wireless access technology.

[0129] As an embodiment, the first wireless access technology is a wireless access technology in a sensor network.

[0130] As an embodiment, the second wireless access technology is a wireless access technology for mobile communications.

[0131] As an embodiment, the second wireless access technology is a 5G (fifth generation mobile communication) wireless access technology.

[0132] As an embodiment, the second wireless access technology is a 6G (sixth generation mobile communication) wireless access technology.

[0133] As an embodiment, the benefits of the above method include: being conducive to realizing resource sharing between 6G wireless access technology and other wireless access technologies.

[0134] As an embodiment, the second wireless access technology is a wireless access technology of 6G or above (such as 7G (seventh generation mobile communication), 8G (eighth generation mobile communication), etc.).

[0135] As an embodiment, the benefits of the above method include: being conducive to realizing resource sharing between wireless access technologies above 6G and other wireless access technologies.

[0136] As an embodiment, the second wireless access technology is a wireless access technology of WLAN.

[0137] As an embodiment, the second wireless access technology is Bluetooth wireless access technology.

[0138] As an embodiment, the second wireless access technology is a wireless access technology in a sensor network.

[0139] As an embodiment, when the channel experienced by the first signal is used to infer the channel experienced by the second signal, at least one parameter of the channel experienced by the first signal is used to infer at least one parameter of the channel experienced by the second signal.

[0140] As an embodiment, the first node measures and obtains at least part of the parameters of the channel traversed by the first signal.

[0141] As an embodiment, when the first node measures and obtains a parameter of the channel experienced by the first signal and assumes that a parameter of the channel experienced by the second signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

[0142] As an embodiment, the first node is informed of at least some of the parameters of the channel traversed by the first signal.

[0143] As an embodiment, the second node in the present application uses the first wireless access technology to send information to inform the first node of a parameter of the channel experienced by the first signal.

[0144] As an embodiment, the second node in the present application uses the second radio access technology to send information to inform the first node of a parameter of the channel experienced by the first signal.

[0145] As an embodiment, when the first node is informed of a parameter of the channel experienced by the first signal and it is assumed that a parameter of the channel experienced by the second signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

[0146] As an embodiment, when the second signal and the first signal are in a quasi-co-location relationship, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0147] As an embodiment, when the second signal and the first signal occupy the same antenna port, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0148] As an embodiment, the statement "the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal" means that the parameters of the channel experienced by the first signal can be used to infer the parameters of the channel experienced by the second signal.

[0149] As an embodiment, when the channel experienced by the first signal can be used to infer the channel experienced by the second signal, at least one parameter of the channel experienced by the first signal can be used to infer at least one parameter of the channel experienced by the second signal.

[0150] As an embodiment, when the first node measures and obtains a parameter of the channel experienced by the first signal and can assume that a parameter of the channel experienced by the second signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal can be used to infer the parameter of the channel experienced by the second signal.

[0151] As an embodiment, when the first node is informed of a parameter of the channel experienced by the first signal and is able to assume that a parameter of the channel experienced by the second signal is the same as this parameter of the channel experienced by the first signal, this parameter of the channel experienced by the first signal can be used to infer this parameter of the channel experienced by the second signal.

[0152] As an embodiment, the parameters of the channel experienced by the first signal include small-scale properties of the channel experienced by the first signal.

[0153] As an embodiment, the parameter of the channel experienced by the second signal includes a small-scale characteristic of the channel experienced by the second signal.

[0154] As an embodiment, the parameters of the channel experienced by the first signal include large-scale properties of the channel experienced by the first signal.

[0155] As an embodiment, the parameter of the channel experienced by the second signal includes a large-scale characteristic of the channel experienced by the second signal.

[0156] As an embodiment, the parameter of the channel experienced by the first signal refers to a small-scale characteristic of the channel experienced by the first signal.

[0157] As an embodiment, the parameter of the channel experienced by the second signal refers to a small-scale characteristic of the channel experienced by the second signal.

[0158] As an embodiment, the parameter of the channel experienced by the first signal refers to a large-scale characteristic of the channel experienced by the first signal.

[0159] As an embodiment, the parameter of the channel experienced by the second signal refers to a large-scale characteristic of the channel experienced by the second signal.

[0160] As an embodiment, the “used for inference” in this application refers to the first node.

[0161] Example 2

[0162] Embodiment 2 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 2. Figure 2 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in a network.

[0163] The first communications device 410 includes 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 .

[0164] The second communication device 450 includes 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 .

[0165] As an embodiment, in transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer (Layer 2) functionality. In transmission from the first communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for 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 the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0166] As an example, during 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 via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. 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 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and 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 layer. Various control signals may also be provided to the L3 layer (Layer 3) for L3 layer processing.

[0167] As an example, during a transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0168] As an embodiment, during a 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 reception functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. The controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as a computer-readable medium. During a transmission from the second communication device 450 to the first communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0169] As an embodiment, the L2 layer includes a MAC (Medium Access Control) sublayer.

[0170] As an embodiment, the L2 layer includes an RLC (Radio Link Control) sublayer.

[0171] As an embodiment, the L2 layer includes a PDCP (Packet Data Convergence Protocol) sublayer.

[0172] As an embodiment, the L2 layer includes an SDAP (Service Data Adaptation Protocol) sublayer.

[0173] As an embodiment, the L3 layer includes an RRC (Radio Resource Control) sublayer.

[0174] As an embodiment, the first node in the present application includes the second communication device 450 , and the second node in the present application includes the first communication device 410 .

[0175] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a relay node.

[0176] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a base station device.

[0177] As a sub-embodiment of the above embodiment, the first node is a relay node, and the second node is a base station device.

[0178] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 at least: operates a first signal using a first radio access technology; operates a second signal using a second radio access technology, wherein parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal; wherein the first radio access technology is different from the second radio access technology; and the operation is sending, or the operation is receiving.

[0179] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0180] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: operating a first signal using a first wireless access technology; operating a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein the first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

[0181] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0182] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 is configured to at least: operate a first signal using a first radio access technology; operate a second signal using a second radio access technology, wherein parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal; wherein the first radio access technology is different from the second radio access technology; and the operation is transmission, or the operation is reception.

[0183] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0184] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: operating a first signal using a first wireless access technology; operating a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein the first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

[0185] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0186] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signaling in this application.

[0187] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first signaling in this application.

[0188] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signal in the present application.

[0189] As an embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller / processor 475, the memory 476} is used to send the first signal in this application.

[0190] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the second signal in this application.

[0191] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476} is used to receive the second signal in this application.

[0192] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the third signal in the present application.

[0193] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476} is used to receive the third signal in this application.

[0194] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459, the memory 460, the data source 467} is used to send the fourth signal in the present application.

[0195] As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476} is used to receive the fourth signal in the present application.

[0196] Example 3

[0197] Embodiment 3 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG3 . In FIG3 , the first node U1A and the second node U2A communicate via an air interface. In FIG3 , the steps in the dotted box F1 are optional.

[0198] The first node U1A receives a first signaling in step S310; sends a first signal using a first radio access technology in step S311; and receives a second signal using a second radio access technology in step S312.

[0199] The second node U2A sends a first signaling in step S320; receives a first signal using a first radio access technology in step S321; and sends a second signal using a second radio access technology in step S322.

[0200] In embodiment 3, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; and the first radio access technology is different from the second radio access technology.

[0201] As a sub-embodiment of embodiment 3, based on the indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0202] As a sub-embodiment of embodiment 3, the reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0203] As an embodiment, the first node U1A is the first node in this application.

[0204] As an embodiment, the second node U2A is the second node in this application.

[0205] As an embodiment, the first node U1A is a UE.

[0206] As an embodiment, the second node U2A is a base station.

[0207] As an embodiment, the second node U2A is a UE.

[0208] As an embodiment, the second node U2A is a wireless access point (AP).

[0209] As an embodiment, the air interface between the second node U2A and the first node U1A includes a Uu interface.

[0210] As an embodiment, the air interface between the second node U2A and the first node U1A includes a cellular link.

[0211] As an embodiment, the air interface between the second node U2A and the first node U1A includes a non-cellular link.

[0212] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless local area network link.

[0213] As an embodiment, the air interface between the second node U2A and the first node U1A includes a WLAN link.

[0214] As an embodiment, the air interface between the second node U2A and the first node U1A includes a Wifi link.

[0215] As an embodiment, the air interface between the second node U2A and the first node U1A includes a Bluetooth link.

[0216] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless interface between a base station device and a user equipment.

[0217] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless interface between a satellite device and a user equipment.

[0218] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless interface between a relay device and a user equipment.

[0219] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless interface between user equipments.

[0220] As an embodiment, the air interface between the second node U2A and the first node U1A includes a wireless interface between a wireless access point (AP) and a user equipment.

[0221] As an embodiment, the steps in the dashed box F1 do not exist.

[0222] As an embodiment, the steps in the dashed box F1 exist.

[0223] Example 4

[0224] Embodiment 4 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG4 . In FIG4 , the first node U1B and the second node U2B communicate via an air interface. In FIG4 , the steps in the dotted box F2 are optional.

[0225] The first node U1B receives a first signaling in step S410; receives a first signal using a first radio access technology in step S411; and receives a second signal using a second radio access technology in step S412.

[0226] The second node U2B sends a first signaling in step S420; sends a first signal using a first radio access technology in step S421; and sends a second signal using a second radio access technology in step S422.

[0227] In embodiment 4, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; and the first radio access technology is different from the second radio access technology.

[0228] As a sub-embodiment of embodiment 4, based on the indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0229] As a sub-embodiment of embodiment 4, the reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0230] As an embodiment, the first node U1B is the first node in this application.

[0231] As an embodiment, the second node U2B is the second node in this application.

[0232] As an embodiment, the first node U1B is a UE.

[0233] As an embodiment, the second node U2B is a base station.

[0234] As an embodiment, the second node U2B is a UE.

[0235] As an embodiment, the second node U2B is a wireless access point (AP).

[0236] As an embodiment, the air interface between the second node U2B and the first node U1B includes a Uu interface.

[0237] As an embodiment, the air interface between the second node U2B and the first node U1B includes a cellular link.

[0238] As an embodiment, the air interface between the second node U2B and the first node U1B includes a non-cellular link.

[0239] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless local area network link.

[0240] As an embodiment, the air interface between the second node U2B and the first node U1B includes a WLAN link.

[0241] As an embodiment, the air interface between the second node U2B and the first node U1B includes a Wifi link.

[0242] As an embodiment, the air interface between the second node U2B and the first node U1B includes a Bluetooth link.

[0243] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless interface between a base station device and a user equipment.

[0244] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless interface between a satellite device and a user equipment.

[0245] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless interface between a relay device and a user equipment.

[0246] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless interface between user equipments.

[0247] As an embodiment, the air interface between the second node U2B and the first node U1B includes a wireless interface between a wireless access point (AP) and a user equipment.

[0248] As an embodiment, the steps in the dashed box F2 do not exist.

[0249] As an embodiment, the steps in the dashed box F2 exist.

[0250] Example 5

[0251] Embodiment 5 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG5 . In FIG5 , the first node U1C and the second node U2C communicate via an air interface. In FIG5 , the steps in the dashed box F3 are optional.

[0252] The first node U1C receives a first signaling in step S510; sends a first signal using a first radio access technology in step S511; and sends a second signal using a second radio access technology in step S512.

[0253] The second node U2C sends a first signaling in step S520; receives a first signal using a first radio access technology in step S521; and receives a second signal using a second radio access technology in step S522.

[0254] In embodiment 5, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; and the first radio access technology is different from the second radio access technology.

[0255] As a sub-embodiment of Embodiment 5, based on an indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0256] As a sub-embodiment of embodiment 5, the sending of the second signal depends on the inferred parameters of the channel through which the second signal passes.

[0257] As an embodiment, the first node U1C is the first node in this application.

[0258] As an embodiment, the second node U2C is the second node in this application.

[0259] As an embodiment, the first node U1C is a UE.

[0260] As an embodiment, the second node U2C is a base station.

[0261] As an embodiment, the second node U2C is a UE.

[0262] As an embodiment, the second node U2C is a wireless access point (AP).

[0263] As an embodiment, the air interface between the second node U2C and the first node U1C includes a Uu interface.

[0264] As an embodiment, the air interface between the second node U2C and the first node U1C includes a cellular link.

[0265] As an embodiment, the air interface between the second node U2C and the first node U1C includes a non-cellular link.

[0266] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless local area network link.

[0267] As an embodiment, the air interface between the second node U2C and the first node U1C includes a WLAN link.

[0268] As an embodiment, the air interface between the second node U2C and the first node U1C includes a Wifi link.

[0269] As an embodiment, the air interface between the second node U2C and the first node U1C includes a Bluetooth link.

[0270] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless interface between a base station device and a user equipment.

[0271] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless interface between a satellite device and a user equipment.

[0272] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless interface between a relay device and a user equipment.

[0273] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless interface between user equipments.

[0274] As an embodiment, the air interface between the second node U2C and the first node U1C includes a wireless interface between a wireless access point (AP) and a user equipment.

[0275] As an embodiment, the steps in the dashed box F3 do not exist.

[0276] As an embodiment, the steps in the dashed box F3 exist.

[0277] Example 6

[0278] Embodiment 6 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG6 . In FIG6 , the first node U1D and the second node U2D communicate via an air interface. In FIG6 , the steps in the dashed box F4 are optional.

[0279] The first node U1D receives a first signaling in step S610; receives a first signal using a first radio access technology in step S611; and sends a second signal using a second radio access technology in step S612.

[0280] The second node U2D sends a first signaling in step S620; sends a first signal using a first wireless access technology in step S621; and receives a second signal using a second wireless access technology in step S622.

[0281] In embodiment 6, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; and the first radio access technology is different from the second radio access technology.

[0282] As a sub-embodiment of embodiment 6, based on the indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0283] As a sub-embodiment of embodiment 6, the sending of the second signal depends on the inferred parameters of the channel through which the second signal passes.

[0284] As an embodiment, the first node U1D is the first node in this application.

[0285] As an embodiment, the second node U2D is the second node in this application.

[0286] As an embodiment, the first node U1D is a UE.

[0287] As an embodiment, the second node U2D is a base station.

[0288] As an embodiment, the second node U2D is a UE.

[0289] As an embodiment, the second node U2D is a wireless access point (Access Point, AP).

[0290] As an embodiment, the air interface between the second node U2D and the first node U1D includes a Uu interface.

[0291] As an embodiment, the air interface between the second node U2D and the first node U1D includes a cellular link.

[0292] As an embodiment, the air interface between the second node U2D and the first node U1D includes a non-cellular link.

[0293] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless local area network link.

[0294] As an embodiment, the air interface between the second node U2D and the first node U1D includes a WLAN link.

[0295] As an embodiment, the air interface between the second node U2D and the first node U1D includes a Wifi link.

[0296] As an embodiment, the air interface between the second node U2D and the first node U1D includes a Bluetooth link.

[0297] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless interface between a base station device and a user equipment.

[0298] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless interface between a satellite device and a user equipment.

[0299] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless interface between a relay device and a user equipment.

[0300] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless interface between user equipments.

[0301] As an embodiment, the air interface between the second node U2D and the first node U1D includes a wireless interface between a wireless access point (AP) and a user equipment.

[0302] As an embodiment, the steps in the dashed box F4 do not exist.

[0303] As an embodiment, the steps in the dashed box F4 exist.

[0304] Example 7

[0305] Example 7 illustrates a schematic diagram illustrating parameters of a channel traversed by a first signal and parameters of a channel traversed by a second signal according to an embodiment of the present application, as shown in FIG7 .

[0306] In Embodiment 7, the parameters of the channel experienced by the first signal include large-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include large-scale characteristics of the channel experienced by the second signal.

[0307] As an embodiment, the large-scale characteristics include at least one of delay spread, Doppler spread, Doppler shift, average gain, average delay and spatial Rx parameters.

[0308] As an embodiment, the large-scale characteristic includes delay spread.

[0309] As an embodiment, the large-scale characteristic includes Doppler spread.

[0310] As an embodiment, the large-scale characteristic includes Doppler shift.

[0311] As an embodiment, the large-scale characteristic includes average gain.

[0312] As an embodiment, the large-scale characteristic includes average delay.

[0313] As an embodiment, the large-scale characteristics include spatial reception parameters.

[0314] Example 8

[0315] Embodiment 8 illustrates a schematic diagram of the first signaling according to an embodiment of the present application, as shown in FIG8 .

[0316] In embodiment 8, the first node receives a first signaling; wherein, based on an indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0317] As an embodiment, the first node receives first signaling, and the first signaling indicates that the parameters of the channel experienced by the first signal can be used to infer the parameters of the channel experienced by the second signal.

[0318] As an embodiment, the first signaling indicates that the second signal and the first signal are in a quasi co-location relationship.

[0319] As an embodiment, the first signaling indicates that the second signal and the first signal occupy the same antenna port.

[0320] As an embodiment, the first signaling includes control information.

[0321] As an embodiment, the reception of the first signaling precedes the operation of the first signal.

[0322] As an embodiment, the reception of the first signaling is after the operation of the first signal.

[0323] As an embodiment, the reception of the first signaling precedes the operation of the second signal.

[0324] As an embodiment, the second node sends the first signaling using the first wireless access technology.

[0325] As an embodiment, the first node receives the first signaling using the first radio access technology.

[0326] As an embodiment, the first signaling is transmitted in a wireless access network that adopts the first wireless access technology.

[0327] As an embodiment, the first signaling is sent / received on a wireless channel defined in the first wireless access technology.

[0328] As an embodiment, the first signaling is transmitted via a wireless interface defined in the first radio access technology.

[0329] As an embodiment, the second node sends the first signaling using the second radio access technology.

[0330] As an embodiment, the first node receives the first signaling using the second radio access technology.

[0331] As an embodiment, the first signaling is transmitted in a wireless access network that adopts the second wireless access technology.

[0332] As an embodiment, the first signaling is sent / received on a wireless channel defined in the second radio access technology.

[0333] As an embodiment, the first signaling is transmitted via a wireless interface defined in the second radio access technology.

[0334] Example 9

[0335] Embodiment 9 illustrates a schematic diagram of the relationship between a second signal and the inferred parameters of a channel traversed by the second signal according to an embodiment of the present application, as shown in FIG9 .

[0336] In the ninth embodiment, the transmission / reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0337] As an embodiment, the sending of the second signal depends on the inferred parameters of the channel through which the second signal passes.

[0338] As an embodiment, the reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

[0339] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and determines transmitter parameters / receiver parameters based on the constructed channel model to send / receive the second signal.

[0340] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and precodes the second signal according to the constructed channel model according to ZF, MRT, MMSE and other criteria before sending it.

[0341] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and sets a receiver to receive the second signal according to the constructed channel model in accordance with ZF, MRC, MMSE and other criteria.

[0342] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and determines the transmitter parameters / receiver parameters by itself according to the estimated channel matrix to send / receive the second signal.

[0343] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and determines the transmitter parameters / receiver parameters by itself according to the constructed channel model to send / receive the second signal.

[0344] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and precodes the second signal according to the estimated channel matrix according to ZF, MRT, MMSE and other criteria before sending it.

[0345] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and pre-encodes the second signal according to the constructed channel model according to ZF (Zero-Forcing), MRT (Maximum Ratio Transmission), MMSE (Minimum Mean Square Error) and other criteria before sending it.

[0346] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and sets the receiver to receive the second signal according to the estimated channel matrix according to ZF, MRC (Maximal Ratio Combining), MMSE and other criteria.

[0347] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results before the second signal is operated, and sets the receiver to receive the second signal according to the constructed channel model according to ZF, MRC, MMSE and other criteria.

[0348] As an embodiment, the measurement result before the second signal is operated includes the received power of at least one signal.

[0349] As an embodiment, the measurement result before the second signal is operated includes RSRP (Reference Signal Received Power) of at least one signal.

[0350] As an embodiment, the measurement result before the second signal is operated includes RSSI (Received Signal Strength Indicator) of at least one signal.

[0351] As an embodiment, the measurement result before the second signal is operated includes a SINR (signal-to-noise and interference ratio) of at least one signal.

[0352] As an embodiment, the measurement result before the second signal is operated includes an amplitude value of at least one signal.

[0353] As an embodiment, the measurement result before the second signal is operated includes an envelope of at least one signal.

[0354] As an embodiment, the measurement result before the second signal is operated includes a phase of at least one signal.

[0355] As an embodiment, the second node sends the at least one signal, and the first node receives the at least one signal.

[0356] As an embodiment, the at least one signal is a wireless signal.

[0357] As an embodiment, one of the at least one signal carries control information.

[0358] As an embodiment, one of the at least one signal carries user data.

[0359] Example 10

[0360] Embodiment 10 illustrates a schematic diagram of a fourth signal according to an embodiment of the present application, as shown in FIG10 .

[0361] In embodiment 10, the first node sends / receives a fourth signal using the second radio access technology after the operation on the second signal, and the sending / receiving of the fourth signal depends on the inferred parameters of the channel experienced by the second signal.

[0362] As an embodiment, the first node sends the fourth signal, and the second node receives the fourth signal.

[0363] As an embodiment, the sending of the fourth signal depends on the inferred parameters of the channel experienced by the second signal.

[0364] As an embodiment, the first node receives the fourth signal, and the second node sends the fourth signal.

[0365] As an embodiment, the reception of the fourth signal depends on the inferred parameters of the channel traversed by the second signal.

[0366] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and determines the transmitter parameters / receiver parameters according to the constructed channel model to send / receive the fourth signal.

[0367] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and precodes the fourth signal according to the constructed channel model according to ZF, MRT, MMSE and other criteria before sending it.

[0368] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal, and sets the receiver to receive the fourth signal according to the constructed channel model in accordance with ZF, MRC, MMSE and other criteria.

[0369] As an embodiment, the sending of the fourth signal depends on a result of measuring the second signal.

[0370] As an embodiment, the benefits of the above method include: it is beneficial to improve the transmission performance of subsequent signals by utilizing the inferred parameters of the channel experienced by the second signal and the measurements performed on the second signal.

[0371] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and determines the transmitter parameters / receiver parameters according to the estimated channel matrix to send / receive the fourth signal.

[0372] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and determines the transmitter parameters / receiver parameters based on the constructed channel model to send / receive the fourth signal.

[0373] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and precodes the fourth signal according to the estimated channel matrix according to ZF, MRT, MMSE and other criteria before sending it.

[0374] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and precodes the fourth signal according to the constructed channel model according to ZF, MRT, MMSE and other criteria before sending it.

[0375] As an embodiment, the first node performs channel estimation based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and sets the receiver to receive the fourth signal according to the estimated channel matrix according to ZF, MRC, MMSE and other criteria.

[0376] As an embodiment, the first node constructs a channel model based on the inferred parameters of the channel experienced by the second signal and the measurement results of the second signal, and sets the receiver to receive the fourth signal according to the constructed channel model according to ZF, MRC, MMSE and other criteria.

[0377] As an embodiment, the fourth signal is a wireless signal.

[0378] As an embodiment, the fourth signal carries control information.

[0379] As an embodiment, the fourth signal carries user data.

[0380] As an embodiment, the result of measuring the second signal includes received power.

[0381] As an embodiment, the result of measuring the second signal includes RSRP.

[0382] As an embodiment, the result of measuring the second signal includes RSSI.

[0383] As an embodiment, the result of measuring the second signal includes SINR.

[0384] As an embodiment, the result of measuring the second signal includes an amplitude value of the second signal.

[0385] As an embodiment, the result of measuring the second signal includes an envelope of the second signal.

[0386] As an embodiment, the result of measuring the second signal includes the phase of the second signal.

[0387] Example 11

[0388] Embodiment 11 illustrates a schematic diagram of a third signal according to an embodiment of the present application, as shown in FIG11 .

[0389] In embodiment 11, the first node operates a third signal using the first radio access technology; the parameters of the channel experienced by the first signal are used to infer parameters of the channel experienced by the third signal.

[0390] As an embodiment, the first node sends the third signal using the first wireless access technology.

[0391] As an embodiment, the first node receives the third signal using the first wireless access technology.

[0392] As an embodiment, when the channel experienced by the first signal is used to infer the channel experienced by the third signal, at least one parameter of the channel experienced by the first signal is used to infer at least one parameter of the channel experienced by the third signal.

[0393] As an embodiment, the first node measures and obtains at least part of the parameters of the channel traversed by the first signal.

[0394] As an embodiment, when the first node measures and obtains a parameter of the channel experienced by the first signal and assumes that a parameter of the channel experienced by the third signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the third signal.

[0395] As an embodiment, the first node is informed of at least some of the parameters of the channel traversed by the first signal.

[0396] As an embodiment, the second node in the present application uses the first wireless access technology to send information to inform the first node of a parameter of the channel experienced by the first signal.

[0397] As an embodiment, the second node in the present application uses the second radio access technology to send information to inform the first node of a parameter of the channel that the first signal has passed through.

[0398] As an embodiment, when the first node is informed of a parameter of the channel experienced by the first signal and it is assumed that a parameter of the channel experienced by the third signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the third signal.

[0399] As an embodiment, when the third signal and the first signal are in a quasi-co-location relationship, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0400] As an embodiment, when the third signal and the first signal occupy the same antenna port, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0401] As an embodiment, the statement "the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal" means that the parameters of the channel experienced by the first signal can be used to infer the parameters of the channel experienced by the third signal.

[0402] As an embodiment, when the channel experienced by the first signal can be used to infer the channel experienced by the third signal, at least one parameter of the channel experienced by the first signal can be used to infer at least one parameter of the channel experienced by the third signal.

[0403] As an embodiment, when the first node measures and obtains a parameter of the channel experienced by the first signal and can assume that a parameter of the channel experienced by the third signal is the same as the parameter of the channel experienced by the first signal, the parameter of the channel experienced by the first signal can be used to infer the parameter of the channel experienced by the third signal.

[0404] As an embodiment, when the first node is informed of a parameter of the channel experienced by the first signal and is able to assume that a parameter of the channel experienced by the third signal is the same as this parameter of the channel experienced by the first signal, this parameter of the channel experienced by the first signal can be used to infer this parameter of the channel experienced by the third signal.

[0405] As an embodiment, the parameter of the channel experienced by the third signal includes a small-scale characteristic of the channel experienced by the third signal.

[0406] As an embodiment, the parameter of the channel experienced by the third signal includes a large-scale characteristic of the channel experienced by the third signal.

[0407] As an embodiment, the parameter of the channel experienced by the third signal refers to a small-scale characteristic of the channel experienced by the third signal.

[0408] As an embodiment, the parameter of the channel experienced by the third signal refers to a large-scale characteristic of the channel experienced by the third signal.

[0409] As an embodiment, the sending / receiving of the third signal depends on the parameters of the channel experienced by the first signal.

[0410] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal, and determines transmitter parameters / receiver parameters according to the constructed channel model to send / receive the third signal.

[0411] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal, and pre-encodes the third signal according to the constructed channel model according to ZF, MRT, MMSE and other criteria before sending it.

[0412] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal, and sets the receiver to receive the third signal according to the constructed channel model according to ZF, MRC, MMSE and other criteria.

[0413] As an embodiment, the first node performs channel estimation based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and determines the transmitter parameters / receiver parameters by itself according to the estimated channel matrix to send / receive the third signal.

[0414] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and determines the transmitter parameters / receiver parameters by itself according to the constructed channel model to send / receive the third signal.

[0415] As an embodiment, the first node performs channel estimation based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and precodes the third signal according to the estimated channel matrix according to ZF, MRT, MMSE and other criteria before sending it.

[0416] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and precodes the third signal according to the constructed channel model according to ZF, MRT, MMSE and other criteria before sending it.

[0417] As an embodiment, the first node performs channel estimation based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and sets the receiver to receive the third signal according to the estimated channel matrix according to ZF, MRC, MMSE and other criteria.

[0418] As an embodiment, the first node constructs a channel model based on the parameters of the channel experienced by the first signal and the measurement results before the third signal is operated, and sets the receiver to receive the third signal according to the constructed channel model according to ZF, MRC, MMSE and other criteria.

[0419] As an embodiment, the measurement result before the third signal is operated includes the received power of a signal set.

[0420] As an embodiment, the measurement result before the third signal is operated includes RSRP of a signal set.

[0421] As an embodiment, the measurement result before the third signal is operated includes the RSSI of a signal set.

[0422] As an embodiment, the measurement result before the third signal is operated includes an SINR of a signal set.

[0423] As an embodiment, the measurement result before the third signal is operated includes an amplitude value of a signal set.

[0424] As an embodiment, the measurement result before the third signal is operated includes an envelope of a signal set.

[0425] As an embodiment, the measurement result before the third signal is operated includes the phase of a signal set.

[0426] As an embodiment, the second node sends the one signal set, and the first node receives the one signal set.

[0427] As an embodiment, the one signal set includes only one signal, or more than one signal.

[0428] As an embodiment, each signal in the signal set is a wireless signal.

[0429] As an embodiment, one signal in the signal set carries control information.

[0430] As an embodiment, one signal in the signal set carries user data.

[0431] As an embodiment, the operation on the third signal is performed after the operation on the first signal.

[0432] As an embodiment, the operation on the third signal precedes the operation on the second signal.

[0433] As an embodiment, the operation on the third signal is performed after the operation on the second signal.

[0434] As an embodiment, the operation on the third signal is performed simultaneously with the operation on the second signal.

[0435] Example 12

[0436] Embodiment 12 illustrates a structural block diagram of a processing device in a first node device, as shown in FIG12. In FIG12, the first node device processing device A00 includes a first transceiver A03, and the first transceiver A03 includes a first receiver A01 and a first transmitter A02.

[0437] As an embodiment, the first node device A00 is a user equipment.

[0438] As an embodiment, the first node device A00 is a relay node.

[0439] As an embodiment, the first node device A00 is a vehicle-mounted communication device.

[0440] As an embodiment, the first receiver A01 includes at least one of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 2 of the present application.

[0441] As an embodiment, the first receiver A01 includes at least the first five of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 2 of the present application.

[0442] As an embodiment, the first receiver A01 includes at least the first four of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 2 of the present application.

[0443] As an embodiment, the first receiver A01 includes at least the first three of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 2 of the present application.

[0444] As an embodiment, the first receiver A01 includes at least the first two of the antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, controller / processor 459, memory 460 and data source 467 in Figure 2 of the present application.

[0445] As an embodiment, the first transmitter A02 includes at least one of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG2 of the present application.

[0446] As an embodiment, the first transmitter A02 includes at least the first five of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG2 of the present application.

[0447] As an embodiment, the first transmitter A02 includes at least the first four of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG2 of the present application.

[0448] As an embodiment, the first transmitter A02 includes at least the first three of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG2 of the present application.

[0449] As an embodiment, the first transmitter A02 includes at least the first two of the antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467 in FIG2 of the present application.

[0450] As an embodiment, the first receiver A01 receives a first signal using a first wireless access technology; the first transmitter A02 sends a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0451] As an embodiment, the first receiver A01 receives a first signal using a first wireless access technology; the first receiver A01 receives a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0452] As an embodiment, the first transmitter A02 sends a first signal using a first wireless access technology; the first transmitter A02 sends a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0453] As an embodiment, the first transmitter A02 sends a first signal using a first wireless access technology; the first receiver A01 receives a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0454] As an embodiment, the parameters of the channel experienced by the first signal include large-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include large-scale characteristics of the channel experienced by the second signal.

[0455] As an embodiment, the parameters of the channel experienced by the first signal include small-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include small-scale characteristics of the channel experienced by the second signal.

[0456] As an embodiment, the first receiver A01 receives a first signaling; wherein, based on the indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0457] As an embodiment, the first signaling indicates that the second signal and the first signal are in a quasi-co-location relationship.

[0458] As an embodiment, the sending / receiving of the second signal depends on the inferred parameters of the channel experienced by the second signal.

[0459] As an embodiment, the first receiver A01 receives a third signal using the first wireless access technology; wherein the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0460] As an embodiment, the first transmitter A02 transmits a third signal using the first wireless access technology; wherein the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0461] As an embodiment, the first wireless access technology is a wireless access technology used for a cellular network, and the second wireless access technology is a wireless access technology used for a non-cellular network.

[0462] Example 13

[0463] Embodiment 13 illustrates a structural block diagram of a processing device in a second node device, as shown in FIG13. In FIG13, the second node device processing device B00 includes a second transceiver B03, and the second transceiver B03 includes a second transmitter B01 and a second receiver B02.

[0464] As an embodiment, the second node device B00 is a user equipment.

[0465] As an embodiment, the second node device B00 is a vehicle-mounted communication device.

[0466] As an embodiment, the second node device B00 is a wireless access point.

[0467] As an embodiment, the second node device B00 is a base station.

[0468] As an embodiment, the second node device B00 is a satellite device.

[0469] As an embodiment, the second node device B00 is a relay node.

[0470] As an embodiment, the second node device B00 is one of a test device, a test equipment, and a test instrument.

[0471] As an embodiment, the second transmitter B01 includes at least one of the antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0472] As an embodiment, the second transmitter B01 includes at least the first five of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0473] As an embodiment, the second transmitter B01 includes at least the first four of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0474] As an embodiment, the second transmitter B01 includes at least the first three of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0475] As an embodiment, the second transmitter B01 includes at least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0476] As an embodiment, the second receiver B02 includes at least one of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0477] As an embodiment, the second receiver B02 includes at least the first five of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0478] As an embodiment, the second receiver B02 includes at least the first four of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0479] As an embodiment, the second receiver B02 includes at least the first three of the antenna 420, receiver 418, multi-antenna receiving processor 472, receiving processor 470, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0480] As an embodiment, the second receiver B02 includes at least the first two of the antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475 and memory 476 in FIG. 2 of the present application.

[0481] As an embodiment, the second receiver B02 receives a first signal using a first wireless access technology; the second transmitter B01 sends a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein the first wireless access technology is different from the second wireless access technology.

[0482] As an embodiment, the second receiver B02 receives a first signal using a first wireless access technology; the second receiver B02 receives a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein the first wireless access technology is different from the second wireless access technology.

[0483] As an embodiment, the second transmitter B01 sends a first signal using a first wireless access technology; the second transmitter B01 sends a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0484] As an embodiment, the second transmitter B01 sends a first signal using a first wireless access technology; the second receiver B02 receives a second signal using a second wireless access technology, and the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal; wherein, the first wireless access technology is different from the second wireless access technology.

[0485] As an embodiment, the parameters of the channel experienced by the first signal include large-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include large-scale characteristics of the channel experienced by the second signal.

[0486] As an embodiment, the parameters of the channel experienced by the first signal include small-scale characteristics of the channel experienced by the first signal, and the parameters of the channel experienced by the second signal include small-scale characteristics of the channel experienced by the second signal.

[0487] As an embodiment, the second transmitter B01 sends a first signaling; wherein, based on the indication of the first signaling, the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the second signal.

[0488] As an embodiment, the first signaling indicates that the second signal and the first signal are in a quasi-co-location relationship.

[0489] As an embodiment, the sending / receiving of the second signal depends on the inferred parameters of the channel experienced by the second signal.

[0490] As an embodiment, the second transmitter B01 transmits a third signal using the first wireless access technology; wherein the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0491] As an embodiment, the second receiver B02 receives a third signal using the first wireless access technology; wherein the parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

[0492] As an embodiment, the first wireless access technology is a wireless access technology used for a cellular network, and the second wireless access technology is a wireless access technology used for a non-cellular network.

[0493] Those skilled in the art will appreciate that all or part of the steps in the above method can be performed by instructing the relevant hardware through a program, 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. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, the various module units in the above embodiment can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first node device in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The second node device in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The user equipment, UE, or terminal in this application includes but is not limited to mobile phones, tablet computers, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft, and other wireless communication devices. The base station equipment or base station or network side equipment in this application includes but is not limited to macro cell base stations, micro cell base stations, home base stations, relay base stations, eNB, gNB, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations, test devices, test equipment, test instruments and other equipment.

[0494] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication, characterized in that: include: a first transceiver that operates a first signal using a first wireless access technology; The first transceiver operates a second signal using a second radio access technology, and parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal; The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

2. The first node according to claim 1, characterized in that: The parameter of the channel experienced by the first signal includes large-scale characteristics of the channel experienced by the first signal, and the parameter of the channel experienced by the second signal includes large-scale characteristics of the channel experienced by the second signal.

3. The first node according to claim 1 or 2, characterized in that: include: A first receiver receives a first signaling; Therein, based on the indication of the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

4. The first node according to claim 3, characterized in that: The first signaling indicates that the second signal and the first signal are in a quasi co-location relationship.

5. The first node according to claim 1, characterized in that: The parameter of the channel experienced by the first signal includes small-scale characteristics of the channel experienced by the first signal, and the parameter of the channel experienced by the second signal includes small-scale characteristics of the channel experienced by the second signal.

6. The first node according to any one of claims 1 to 5, characterized in that: The transmission / reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

7. The first node according to any one of claims 1 to 6, characterized in that: include: the first transceiver operating a third signal using the first radio access technology; The parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

8. The first node according to any one of claims 1 to 7, characterized in that: The first wireless access technology is a wireless access technology used in a cellular network, and the second wireless access technology is a wireless access technology used in a non-cellular network.

9. The first node according to any one of claims 1 to 7, characterized in that: The second wireless access technology is a wireless access technology used in a cellular network, and the first wireless access technology is a wireless access technology used in a non-cellular network.

10. The first node according to any one of claims 1 to 7, characterized in that: The first wireless access technology and the second wireless access technology are different cellular network wireless access technologies.

11. A method in a first node for wireless communication, characterized in that: include: operating the first signal using a first radio access technology; operating a second signal using a second radio access technology, wherein parameters of a channel experienced by the first signal are used to infer parameters of a channel experienced by the second signal; The first wireless access technology is different from the second wireless access technology; the operation is sending, or the operation is receiving.

12. The method in the first node according to claim 11, characterized in that: The parameter of the channel experienced by the first signal includes large-scale characteristics of the channel experienced by the first signal, and the parameter of the channel experienced by the second signal includes large-scale characteristics of the channel experienced by the second signal.

13. The method in the first node according to claim 11 or 12, characterized in that: include: receiving a first signaling; Therein, based on the indication of the first signal, the parameter of the channel experienced by the first signal is used to infer the parameter of the channel experienced by the second signal.

14. The method in the first node according to claim 13, characterized in that: The first signaling indicates that the second signal and the first signal are in a quasi co-location relationship.

15. The method in the first node according to claim 11, characterized in that: The parameter of the channel experienced by the first signal includes small-scale characteristics of the channel experienced by the first signal, and the parameter of the channel experienced by the second signal includes small-scale characteristics of the channel experienced by the second signal.

16. The method in the first node according to any one of claims 11 to 15, characterized in that: The transmission / reception of the second signal depends on the inferred parameters of the channel traversed by the second signal.

17. The method in the first node according to any one of claims 11 to 16, characterized in that: include: operating a third signal using the first radio access technology; The parameters of the channel experienced by the first signal are used to infer the parameters of the channel experienced by the third signal.

18. The method in the first node according to any one of claims 11 to 17, characterized in that: The first wireless access technology is a wireless access technology used in a cellular network, and the second wireless access technology is a wireless access technology used in a non-cellular network.

19. The method in the first node according to any one of claims 11 to 17, characterized in that: The second wireless access technology is a wireless access technology used in a cellular network, and the first wireless access technology is a wireless access technology used in a non-cellular network.

20. The method in the first node according to any one of claims 11 to 17, characterized in that: The first wireless access technology and the second wireless access technology are different cellular network wireless access technologies.

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