WO2025153035A1 - Method related to csi for node used for wireless communications, and apparatus - Google Patents

Abstract

Disclosed in the present application are a method related to CSI for a node used for wireless communications, and an apparatus. A first receiver receives a first signal of a first radio access technology; a first transmitter transmits target CSI of a second radio access technology, wherein determination of the target CSI depends on the first signal, the first radio access technology is different from the second radio access technology, and the second radio access technology is a radio access technology of a cellular network.

Description

A method and device related to CSI in a node used for wireless communication

This application claims the priority of the Chinese patent application filed with the State Intellectual Property Office of China on January 19, 2024, with application number 2024100780933 and invention name “A method and device related to CSI in a node used for wireless communication”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for wireless signals in a wireless communication system supporting a cellular network.

Background Art

Future wireless communication networks need to take people as the center of their development vision, meet the communication needs of high reliability, low latency, high transmission rate service, high system coverage, and the Internet of Everything; resource sharing between different wireless access technologies will be an important aspect of future wireless communication networks.

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.

Summary of the invention

How to share resources among multiple wireless access technologies is an important issue that needs to be considered in order to enhance the communication network; the present application discloses a solution to the above problem. It should be noted that the present application can be applied to a variety of wireless communication scenarios, such as mobile communication networks, wireless local area networks, Internet of Vehicles, 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, Internet of Vehicles, 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 the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

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

The present application discloses a method in a first node used for wireless communication, comprising:

receiving a first signal of a first radio access technology;

sending a target CSI for a second radio access technology;

The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

As an embodiment, the problems to be solved by the present application include: how to enhance CSI (Channel Status Information) reporting.

As an embodiment, the problem to be solved by the present application includes: how to improve the efficiency of heterogeneous networks.

As an embodiment, the benefits of the above method include: it is conducive to fully utilizing shared resources (such as the first signal) in a heterogeneous network to enhance CSI reporting.

As an embodiment, the benefits of the above method include: being conducive to improving resource utilization efficiency.

As an embodiment, the benefits of the above method include: being beneficial to network optimization.

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

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

The target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As an embodiment, the benefits of the above method include: it is conducive to improving the transmission performance of scheduling based on the target CQI (Channel quality indicator).

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

The first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal.

As an embodiment, in combination with the above features, the benefits of the solution disclosed in the present application include: improving the configuration flexibility of channel measurement for CSI reporting, which is beneficial to improving the performance of channel estimation or saving resources used for channel measurement.

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

The determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As an embodiment, the benefits of the above method include: it is conducive to using AI (Artificial Intelligence) and ML (Machine Learning) technologies to improve the accuracy of CSI reporting.

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

An input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the benefits of the above method include: it is conducive to using AI or ML technology to improve the accuracy of CSI reporting.

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

A first signaling of the second radio access technology is received, where the first signaling indicates reporting of the target CSI.

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

The first wireless access technology is a non-cellular network wireless access technology.

The present application discloses a method in a second node used for wireless communication, comprising:

Sending a first signal of a first radio access technology;

receiving a target CSI for a second radio access technology;

The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

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

The target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

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

The first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal.

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

The determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

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

An input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

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

A first signaling of the second radio access technology is sent, where the first signaling indicates reporting of the target CSI.

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

The first wireless access technology is a non-cellular network wireless access technology.

The present application discloses a first node used for wireless communication, comprising:

A first receiver, receiving a first signal of a first wireless access technology;

A first transmitter, transmitting a target CSI of a second radio access technology;

The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

The present application discloses a second node used for wireless communication, comprising:

A second transmitter, transmitting a first signal of a first wireless access technology;

A second receiver receives a target CSI of a second radio access technology;

The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

BRIEF DESCRIPTION OF THE DRAWINGS

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

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

FIG2 shows a signal transmission flow chart according to an embodiment of the present application;

FIG3 is a schematic diagram showing that determination of target CSI depends on a first signal according to an embodiment of the present application;

FIG4 shows a schematic diagram of determining a target CSI according to an embodiment of the present application;

FIG5 shows a flowchart of transmission of first channel information included in target CSI according to an embodiment of the present application;

FIG6 shows a schematic diagram of a first encoder according to an embodiment of the present application;

FIG7 shows a schematic diagram of a first function according to an embodiment of the present application;

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

FIG9 shows a structural block diagram of a processing device in a first node device according to an embodiment of the present application;

FIG10 shows a structural block diagram of a processing device in a second node device according to an embodiment of the present application.

DETAILED DESCRIPTION

The technical solution of the present application will be further described in detail below in conjunction with 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.

Example 1

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

In Embodiment 1, the first node in the present application receives a first signal of a first radio access technology in step 101 ; and sends a target CSI of a second radio access technology in step 102 .

In embodiment 1, the determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

As an embodiment, the first signal is a wireless signal.

As an embodiment, the first signal is a radio frequency signal.

As an embodiment, the first signal is a baseband signal.

As an embodiment, the first signal is defined in the technical specification of the first wireless access technology.

As an embodiment, the first signal is transmitted on the transmission resources defined in the first wireless access technology.

As an embodiment, the first signal is transmitted through a channel defined in the first wireless access technology.

As an embodiment, the first signal is transmitted using the first wireless access technology.

As an embodiment, the target CSI is defined in the technical specification of the second radio access technology.

As an embodiment, the content included in the target CSI is defined for the second radio access technology.

As an embodiment, the content included in the target CSI is configured by parameters defined in the second radio access technology.

As an embodiment, the target CSI belongs to UCI (Uplink control information) in the second wireless access technology.

As an embodiment, the benefits of the above method include: it is helpful to ensure the timeliness of reporting the target CSI.

As an embodiment, the determination of the target CSI relies on measurement of the first signal.

As a sub-embodiment of the above embodiment, the first signal is used for channel measurement.

As a sub-embodiment of the above embodiment, the first signal is used for interference measurement.

As an embodiment, in combination with the above features, the benefits of the solution disclosed in the present application include: improving the configuration flexibility of measurements for CSI reporting.

As an embodiment, the benefits of the above method include: it is helpful to save resources used for measurement.

As an embodiment, the target CSI includes a result obtained by measuring the first signal.

As an embodiment, the target CSI includes the received power of the first signal.

As an embodiment, the target CSI includes a SINR calculated based on measurement of the first signal.

As an embodiment, the target CSI includes a target SINR, and the effective signal power used in calculating the target SINR is obtained by measuring at least one signal including the first signal.

As an embodiment, the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal.

As a sub-embodiment of the above embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of the above embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of the above embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the target CSI includes channel parameters obtained by measuring at least one signal including the first signal.

As an embodiment, the first signal is used for interference measurement, and the determination of the target CSI depends on the measurement of the first signal.

As a sub-embodiment of the above embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of the above embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of the above embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the benefits of the above method include: being helpful in improving the reliability of CSI reporting.

As an embodiment, the target CSI includes a target SINR, and the interference power used in calculating the target SINR is obtained by measuring at least one signal including the first signal.

As an embodiment, the at least one signal including the first signal only includes the first signal.

As an embodiment, the at least one signal including the first signal also includes a signal of the first radio access technology.

As an embodiment, a signal of the first radio access technology is defined in a technical specification of the first radio access technology.

As an embodiment, a signal of the first radio access technology is transmitted on transmission resources defined in the first radio access technology.

As an embodiment, a signal of the first radio access technology is transmitted through a channel defined in the first radio access technology.

As an embodiment, a signal of the first radio access technology is transmitted using the first radio access technology.

As an embodiment, the at least one signal including the first signal also includes a signal of the second radio access technology.

As an embodiment, the benefits of the above method include: it is conducive to fully utilizing signals of multiple wireless access technologies to enhance CSI reporting.

As an embodiment, a signal of the second radio access technology is defined in a technical specification of the second radio access technology.

As an embodiment, calculation of the target CSI depends on the first signal.

As an embodiment, the target CSI includes SINR.

As an embodiment, the target CSI includes CQI (Channel quality indicator).

As an embodiment, the target CSI includes a CQI calculated based on at least measurement of the first signal.

As an embodiment, the target CSI includes precoding information.

As an embodiment, the target CSI is obtained by an AI or ML method.

As an embodiment, the target CSI is obtained by a method other than AI or ML.

As an embodiment, the target CSI is sent on a physical channel.

As an embodiment, the target CSI is sent after at least channel coding.

As an embodiment, the target CSI is sent on a physical channel after at least channel coding and modulation.

As an embodiment, the second wireless access technology is a wireless access technology of a cellular network, and the first wireless access technology is a wireless access technology of a non-cellular network.

As an embodiment, combined with the above features, the solution disclosed in the present application is conducive to realizing resource sharing between cellular networks and non-cellular networks.

As an embodiment, the first wireless access technology is WLAN (Wireless Local Area Networks) wireless access technology.

As an embodiment, the first wireless access technology is a wifi wireless access technology.

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

As an embodiment, the second wireless access technology is a wireless access technology for mobile communications, and the first wireless access technology is a wireless access technology other than mobile communications.

As an embodiment, the second wireless access technology is a wireless access technology of a cellular network, including: the second wireless access technology is a wireless access technology of mobile communication.

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

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

As an embodiment, the second wireless access technology and the first wireless access technology are wireless access technologies of different cellular networks.

As an embodiment, the first wireless access technology is a 5G wireless access technology, and the second wireless access technology is a 6G wireless access technology.

As an embodiment, the second wireless access technology is a 5G wireless access technology, and the first wireless access technology is a 6G wireless access technology.

As an embodiment, the transmitter of the first signal and the receiver of the target CSI are the same node.

As an embodiment, the transmitter of the first signal and the receiver of the target CSI are not the same node.

As a sub-embodiment of the above embodiment, the transmitting end of the first signal and the receiving end of the target CSI are different base stations.

As a sub-embodiment of the above embodiment, the sending end of the first signal is a wireless access point (Access Point, AP), and the receiving end of the target CSI is a base station of mobile communication.

As an embodiment, the first node uses at least one of {antenna, receiver, multi-antenna receive processor, receive processor, controller/processor, memory} for the first wireless access technology to receive the first signal, and the first node uses at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the second wireless access technology to send the target CSI.

As an embodiment, the first node uses at least one of {antenna, receiver, multi-antenna receive processor, receive processor, controller/processor, memory} for the second wireless access technology to receive the first signal, and the first node uses at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the second wireless access technology to send the target CSI.

As an embodiment, the transmitting end of the first signal uses at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the first wireless access technology to send the first signal, and the receiving end of the target CSI uses at least one of {antenna, receiver, multi-antenna receive processor, receive processor, controller/processor, memory} for the second wireless access technology to receive the target CSI.

As an embodiment, the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal; the first wireless access technology is a wireless access technology of a cellular network.

As a sub-embodiment of the above embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of the above embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of the above embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the first signal is used for interference measurement, and the determination of the target CSI depends on the measurement of the first signal; the first wireless access technology is a wireless access technology of a cellular network.

As a sub-embodiment of the above embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of the above embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of the above embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the first signal is used for interference measurement, and the determination of the target CSI depends on the measurement of the first signal; the first wireless access technology is a non-cellular network wireless access technology.

As a sub-embodiment of the above embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of the above embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of the above embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the first node determines the target CSI.

Example 2

Embodiment 2 illustrates a signal transmission flow chart according to an embodiment of the present application, as shown in FIG2. In FIG2, the first node U1 and the second node U2 communicate with each other through an air interface.

The first node U1 receives a first signal of a first radio access technology in step S211 ; and sends a target CSI of a second radio access technology in step S212 .

The second node U2 sends a first signal of a first radio access technology in step S221; and receives a target CSI of a second radio access technology in step S222.

In Example 2, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network; the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal; the first wireless access technology is a wireless access technology of a non-cellular network.

As a sub-embodiment of Embodiment 2, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As a sub-embodiment of Embodiment 2, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As a sub-embodiment of Embodiment 2, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the first node U1 is the first node in this application.

As an embodiment, the second node U2 is the second node in the present application.

As an embodiment, the first node U1 is a UE.

As an embodiment, the second node U2 is a base station.

As an embodiment, the first node U1 is a UE, and the second node U2 is a base station.

As an embodiment, the second node U2 is a UE.

As an embodiment, the second node U2 is a wireless access point (Access Point, AP).

As an embodiment, the air interface between the second node U2 and the first node U1 includes a Uu interface.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a non-cellular link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless local area network link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a WLAN link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a Wifi link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a Bluetooth link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a satellite device and a user equipment.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a relay device and a user equipment.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between user equipments.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between a wireless access point (Access Point, AP) and a user device.

As an embodiment, the target CSI is determined at the first node.

Example 3

Embodiment 3 illustrates a schematic diagram of determining the target CSI depending on the first signal according to an embodiment of the present application, as shown in FIG3 .

In Embodiment 3, the target CSI includes a target CQI, the first signal is used for channel measurement, and determination of the target CQI depends on channel measurement performed using the first signal.

As an embodiment, the target CQI indicates the expected MCS (Modulation and coding scheme) under the assumed PDSCH transmission conditions.

As an embodiment, the target CQI indicates the most efficient modulation mode and coding rate that can be supported by a (virtual, or not actually sent) PDSCH transmitted on the CSI reference resource under the condition of a BLER not exceeding 0.1.

Generally speaking, how to determine CQI based on signal measurement is implementation-dependent, that is, it is left to each manufacturer to determine; a typical but non-limiting implementation is described below:

The first node first measures at least one signal including the first signal to obtain an original channel matrix H _r×t , where r and t are the number of receiving antennas and the number of antenna ports for transmission, respectively; under the condition of using a precoding matrix W _t×l , the encoded channel parameter matrix is H _r×t ·W _t×l , where l is the number of rank or layers; the equivalent channel capacity of H r× _t ·W _t×l is calculated using criteria such as SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio). Further, the calculation of the equivalent channel capacity may also consider the first node estimating noise and interference. If the at least one signal includes a signal for interference measurement, the first node may use these signals for interference measurement to more accurately measure interference or noise. The target CQI is determined by the equivalent channel capacity by looking up a table or the like.

As an embodiment, the at least one signal including the first signal only includes the first signal.

As an embodiment, the at least one signal including the first signal also includes a signal of the first radio access technology.

As an embodiment, the at least one signal including the first signal also includes a signal of the second radio access technology.

Example 4

Embodiment 4 illustrates a schematic diagram of determining a target CSI according to an embodiment of the present application, as shown in FIG4 .

In Embodiment 4, the determination of the target CSI relies on a first generator, and the first generator is trained.

As an embodiment, the first generator is used to compress CSI.

As an embodiment, the first generator is used for channel estimation.

As an embodiment, the first generator is used to output at least CQI.

As an embodiment, the first generator is used to output at least SINR.

As an embodiment, the first generator is used to output at least precoding information.

As an embodiment, the input of the first generator includes data obtained through signal measurement.

As an embodiment, the input of the first generator includes CSI data to be compressed.

As an embodiment, the first generator includes an estimator.

As an embodiment, the first generator includes a Bayesian optimal estimator.

As an embodiment, the first generator includes a classifier.

As an embodiment, the first generator includes an encoder.

As an embodiment, the first generator is an encoder including P0 coding layers, namely coding layers #1, #2, ..., #P0.

As a sub-embodiment of the above embodiment, the P0 is 2, that is, the P0 coding layers include coding layer #1 and coding layer #2, and the coding layer #1 and the coding layer #2 are respectively a convolutional layer and a fully connected layer; in the convolutional layer, at least one convolution kernel is used to convolve the input of the first generator to generate a corresponding feature map, and at least one feature map output by the convolutional layer is reshaped into a vector input to the fully connected layer; the fully connected layer converts the one vector into the output of the first generator. For a more detailed description, please refer to technical literature related to CNN, such as Chao-Kai Wen, Deep Learning for Massive MIMO CSI Feedback, IEEE WIRELESS COMMUNICATIONS LETTERS, VOL.7, NO.5, OCTOBER 2018, etc.

As a sub-embodiment of the above embodiment, the P0 is 3, that is, the P0 encoding layers include a fully connected layer, a convolutional layer, and a pooling layer.

As an embodiment, the determination of the target CSI relies on a first generator, and the training of the first generator relies on the measurement of the first signal.

As an embodiment, the benefits of the above method include: it is conducive to using AI or ML technology to improve the accuracy of CSI reporting.

As an embodiment, the training set used to train the first generator includes results obtained by measuring the first signal.

As an embodiment, the training set used to train the first generator includes an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, a training data in a training set used to train the first generator is obtained by precoding based on an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the training set used to train the first generator includes interference estimates obtained by measuring the first signal.

As an embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the benefits of the above method include: it is conducive to using AI or ML technology to improve the accuracy of CSI reporting.

As an embodiment, the input of the first generator includes a result obtained by measuring the first signal.

As an embodiment, the input of the first generator includes an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the input of the first generator includes a result obtained by precoding based on an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the at least one signal including the first signal only includes the first signal.

As an embodiment, the at least one signal including the first signal also includes a signal of the first radio access technology.

As an embodiment, the at least one signal including the first signal also includes a signal of the second radio access technology.

As an embodiment, the input to the first generator comprises an interference estimate obtained by measuring the first signal.

As an embodiment, the target CSI includes at least part of the output of the first generator.

As an embodiment, at least part of the output of the first generator is used as the CQI in the target CSI.

As an embodiment, at least part of the output of the first generator is used as the SINR in the target CSI.

As an embodiment, at least part of the output of the first generator is used as precoding information in the target CSI.

As an embodiment, at least part of the output of the first generator is used as a channel estimation value in the target CSI.

Example 5

Embodiment 5 illustrates a flow chart of transmission of first channel information included in target CSI according to an embodiment of the present application, as shown in FIG5. In FIG5, the first reference decoder is optional.

In Embodiment 5, the first encoder and the first reference decoder belong to the first node; and the first decoder belongs to the second node.

In Example 5, the first generator includes a first encoder, a first channel input is passed through the first encoder to generate first channel information, the target CSI includes the first channel information, and the first encoder is obtained through training; the second node uses a first decoder to generate a first channel recovery, wherein the input of the first decoder includes the first channel information, and the first decoder is obtained through training.

The first encoder and the first decoder should theoretically be reciprocal operations to ensure that the first channel input is identical to the first channel recovery.

As an embodiment, due to factors such as implementation complexity, fairness, air interface overhead, or delay, the first encoder and the first decoder in Example 5 cannot ensure complete offset, so the first channel input and the first channel recovery cannot ensure to be exactly the same.

As an embodiment, the first generator is the first encoder.

As an embodiment, the training set used to train the first encoder includes the results of measuring the first signal.

As an embodiment, the training set used to train the first encoder includes an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, a training data in a training set for training the first encoder is obtained by precoding based on an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the first channel input depends on a measurement of the first signal.

As an embodiment, the first channel input is an original channel matrix obtained by measurement.

As an embodiment, the first channel input is obtained by precoding based on an original channel matrix obtained by measurement.

As an embodiment, the first channel input is an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the first channel input is obtained by precoding based on an original channel matrix obtained by measuring at least one signal including the first signal.

As an embodiment, the first receiver further includes a first reference decoder, an input of the first reference decoder includes the first channel information, and an output of the first reference decoder includes a first monitoring output.

As an embodiment, the error between the first channel input and the first monitoring output is used by the first node to determine whether the first encoder needs to be updated.

In the above embodiment, the first reference decoder and the first decoder may be independently generated or maintained, so although their purpose is to perform the inverse operation of the first encoder, the two may only be approximate.

As an embodiment, the training of the first encoder is performed at the first node.

As an embodiment, the training of the first encoder is performed at the second node, and the second node configures the first encoder to the first node.

As an embodiment, the training of the first decoder is performed at the second node.

As an embodiment, the training of the first decoder is performed at the first node, and the first node reports the first encoder to the second node.

Example 6

Embodiment 6 illustrates a schematic diagram of a first encoder according to an embodiment of the present application, as shown in Figure 6. In Figure 6, the first encoder includes P1 coding layers, namely coding layers #1, #2, ..., #P1.

As an embodiment, the P1 is 2, that is, the P1 coding layers include coding layer #1 and coding layer #2, and the coding layer #1 and the coding layer #2 are respectively a convolutional layer and a fully connected layer; in the convolutional layer, at least one convolution kernel is used to convolve the first channel input to generate a corresponding feature map, and at least one feature map output by the convolutional layer is reshaped into a vector input to the fully connected layer; the fully connected layer converts the one vector into the first channel information. For a more detailed description, please refer to the technical literature related to CNN, such as Chao-Kai Wen, Deep Learning for Massive MIMO CSI Feedback, IEEE WIRELESS COMMUNICATIONS LETTERS, VOL.7, NO.5, OCTOBER 2018, etc.

As an embodiment, the P1 is 3, that is, the P1 encoding layer includes a fully connected layer, a convolutional layer, and a pooling layer.

Example 7

Embodiment 7 illustrates a schematic diagram of a first function according to an embodiment of the present application, as shown in FIG7. In (1) of FIG7, the first function includes a preprocessing layer, and P2 decoding layer groups, namely decoding layer groups #1, #2, ..., #P2, each decoding layer group includes at least one decoding layer; in (2) of FIG7, decoding layer group #j includes L layers, namely layers #1, #2, ..., #L; the decoding layer group #j is any decoding layer group among the P2 decoding layer groups.

The structure of the first function is applicable to the first decoder and the first reference decoder in Embodiment 5.

As an embodiment, the preprocessing layer is a fully connected layer, which expands the size of the first channel information to the size of the first channel input.

As an embodiment, any two decoding layer groups in the P2 decoding layer groups have the same structure, and the structure includes the number of included decoding layers, the size of input parameters and the size of output parameters of each included decoding layer, and so on.

As an embodiment, the second node indicates the structure of the P2 and the decoding layer group to the first node.

As an embodiment, L is 4, the first layer of the L layer is the input layer, and the last three layers of the L layer are convolutional layers. For more detailed description, please refer to CNN-related technical literature, such as Chao-Kai Wen, Deep Learning for Massive MIMO CSI Feedback, IEEE WIRELESS COMMUNICATIONS LETTERS, VOL.7, NO.5, OCTOBER 2018, etc.

As an embodiment, the L layer includes at least one convolutional layer and one pooling layer.

Example 8

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

In Embodiment 8, the first node receives first signaling of the second radio access technology, where the first signaling indicates reporting of the target CSI, and the first signaling is defined in a technical specification of the second radio access technology.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is DCI.

As an embodiment, the first signaling is higher layer signaling.

As an embodiment, the higher layer includes layers above the physical layer.

As an embodiment, the higher layer includes a MAC layer.

As an embodiment, the higher layer includes an RRC layer.

As an embodiment, the first signaling is received before the first signal is received.

As an embodiment, the first signaling is received after the first signal is received.

As an embodiment, the transmitter of the first signaling and the receiver of the target CSI are the same node.

As an embodiment, the first node uses at least one of {antenna, receiver, multi-antenna receive processor, receive processor, controller/processor, memory} for the second wireless access technology to receive the first signaling, and the sender of the first signaling uses at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the second wireless access technology to send the first signaling.

Example 9

Embodiment 9 illustrates a structural block diagram of a processing device in a first node device, as shown in FIG9. In FIG9, the first node device processing device A00 includes a first receiver A01 and a first transmitter A02.

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

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

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

As an embodiment, the first receiver A01 includes at least one of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the first wireless access technology.

As an embodiment, the first receiver A01 includes at least the first two of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the first wireless access technology.

As an embodiment, the first receiver A01 includes at least one of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the second wireless access technology.

As an embodiment, the first receiver A01 includes at least the first two of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the second wireless access technology.

As an embodiment, the first transmitter A02 includes at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the second wireless access technology.

As an embodiment, the first transmitter A02 includes at least the first two of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the second wireless access technology.

As an embodiment, the first receiver A01 receives a first signal of a first wireless access technology; the first transmitter A02 sends a target CSI of a second wireless access technology; wherein the determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

As an embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As an embodiment, the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal.

As an embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As an embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the first receiver A01 receives a first signaling of the second radio access technology, where the first signaling indicates reporting of the target CSI.

As an embodiment, the first wireless access technology is a non-cellular network wireless access technology.

Example 10

Embodiment 10 illustrates a structural block diagram of a processing device in a second node device, as shown in FIG10. In FIG10, the second node device processing device B00 includes a second transmitter B01 and a second receiver B02.

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

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

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

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

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

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

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

As an embodiment, the second transmitter B01 includes at least one of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the first wireless access technology.

As an embodiment, the second transmitter B01 includes at least the first two of {antenna, transmitter, multi-antenna transmit processor, transmit processor, controller/processor, memory, data source} for the first wireless access technology.

As an embodiment, the second receiver B02 includes at least one of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the second wireless access technology.

As an embodiment, the second receiver B02 includes at least the first two of {antenna, receiver, multi-antenna receiving processor, receiving processor, controller/processor, memory} for the second wireless access technology.

As an embodiment, the second transmitter B01 sends a first signal of a first wireless access technology; the second receiver B02 receives a target CSI of a second wireless access technology; wherein the determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.

As an embodiment, the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal.

As an embodiment, the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal.

As an embodiment, the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator.

As an embodiment, an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained.

As an embodiment, the second transmitter B01 sends a first signaling of the second radio access technology, where the first signaling indicates reporting of the target CSI.

As an embodiment, the first wireless access technology is a non-cellular network wireless access technology.

A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed 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, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first node device in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet 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 the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet 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 or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet 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 macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNB, gNB, transmission receiving node TRP, GNSS, relay satellite, satellite base station, aerial base station, test devices, test equipment, test instruments and other equipment.

It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims (10)

A first node used for wireless communication, characterized by comprising: A first receiver, receiving a first signal of a first wireless access technology; A first transmitter, transmitting a target CSI of a second radio access technology; The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network. The first node according to claim 1, characterized in that the target CSI includes a target CQI, and determination of the target CQI depends on measurement of the first signal. The first node according to claim 1 or 2 is characterized in that the first signal is used for channel measurement, and the determination of the target CSI depends on the measurement of the first signal. The first node according to any one of claims 1 to 3, characterized in that the determination of the target CSI relies on a first generator, and a result obtained by measuring the first signal is used for training the first generator. The first node according to any one of claims 1 to 3 is characterized in that an input of the first generator depends on a measurement of the first signal, the target CSI includes at least a portion of an output corresponding to the input, and the first generator is trained. The first node according to any one of claims 1 to 5 is characterized in that the first receiver receives first signaling of the second radio access technology, and the first signaling indicates reporting of the target CSI. The first node according to any one of claims 1 to 6, characterized in that the first wireless access technology is a non-cellular network wireless access technology. A second node used for wireless communication, characterized by comprising: A second transmitter, sending a first signal of a first wireless access technology; A second receiver receives a target CSI of a second radio access technology; The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network. A method in a first node for wireless communication, comprising: receiving a first signal of a first radio access technology; sending a target CSI for a second radio access technology; The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network. A method used in a second node of wireless communication, characterized by comprising: Sending a first signal of a first radio access technology; receiving a target CSI for a second radio access technology; The determination of the target CSI depends on the first signal, the first wireless access technology is different from the second wireless access technology, and the second wireless access technology is a wireless access technology of a cellular network.