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 node receives a third signal and a fourth signal on a first port and a second port respectively, and receives a first signal and a second signal on the first port and the second port respectively, wherein the first signal is later than the third signal, and the second signal is later than the fourth signal; whether the large-scale characteristic of a channel for transmitting the first signal can be inferred from a channel for transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied, the large-scale characteristic of the channel for transmitting the first signal can be inferred from the channel for transmitting the second signal; and whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal. The present application can determine whether the large-scale characteristics of the channels experienced by the signals respectively received on the two ports can be inferred, thereby improving the performance of a system.

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 measurement scheme and apparatus in a wireless communication system. Background Art

[0002] In 2020, the industry first proposed the 5.5G industry vision for 5G evolution. In April 2021, the 3rd Generation Partner Project (3GPP) officially designated 5G-Advanced as the 5.5G evolution of 5G, initiating the standardization process. The 5G-Advanced technical specifications are planned to be defined in three releases: Rel-18 (Release-18), Rel-19, and Rel-20. By the end of 2021, the first 28 projects under Rel-18 were approved, marking the substantive stage of 5.5G technology research and standardization. Future Rel-19 and Rel-20 releases will further explore new 5G-Advanced services and architectures.

[0003] The Reconfigurable Intelligent Surface (RIS) is an artificial electromagnetic surface structure with programmable electromagnetic properties, consisting of a large number of independent, low-cost, passive subwavelength resonant units. Each RIS unit has independent electromagnetic wave control capabilities, and the response of each unit to wireless signals, such as phase, amplitude, and polarization, can be controlled by changing the parameters and spatial distribution of the RIS unit. By superimposing the wireless response signals of a large number of RIS units, specific beam propagation characteristics are formed on a macro scale, thereby forming a flexible and controllable shaped beam, achieving the effect of eliminating coverage blind spots, enhancing edge coverage, and increasing the rank of multi-stream transmission. RIS technology has the characteristics of low cost, low energy consumption, programmability, easy deployment, and high shaping gain achieved with a larger antenna scale. It is regarded as a key technology for 5G-Advanced research and one of the core visions of 6G.

[0004] Summary of the Invention

[0005] Through research, the inventors found that in scenarios where 5G-Advanced and future 6G advanced technologies are adopted, the transmission characteristics of wireless channels are more complex. How to determine whether the large-scale characteristics of the channel experienced by the signal received on one port can be inferred from the channel experienced by the signal received on another port is a key issue.

[0006] In response to the above problems, the present application discloses a solution. It should be noted that in the description of the present application, the RIS scenario is only used as a typical application scenario or example. The present application can also be applied to other non-RIS scenarios; further, adopting a unified design solution for different scenarios (such as other non-RIS scenarios, including but not limited to capacity enhancement systems, short-range communication systems, unlicensed spectrum communications, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, vehicle networks, etc.) can also help reduce hardware complexity and costs. 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 combined with each other arbitrarily.

[0007] As an example, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS38 series.

[0008] As an example, the interpretation of the terms in this application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0009] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0010] receiving a third signal and a fourth signal at the first port and the second port, respectively;

[0011] receiving a first signal and a second signal on the first port and the second port respectively, wherein the first signal is later than the third signal, and the second signal is later than the fourth signal;

[0012] Whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0013] As an embodiment, the problem to be solved by the present application includes: how to determine whether the large-scale characteristics of the channel experienced by the signal received on one port can be inferred from the channel experienced by the signal received on another port; in the above method, this problem is solved by judging whether the first condition is met.

[0014] As an embodiment, the characteristic of the above method is that only when the first condition is satisfied, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0015] As an embodiment, the problem to be solved by the present application includes: whether the large-scale characteristics of the channel experienced by a signal transmitted on one port can be inferred from the channel experienced by a signal transmitted on another port, which is related to the reception quality of the signals previously received on these two ports.

[0016] As an embodiment, the problem to be solved by the present application includes: whether the large-scale characteristics of the channels experienced by two signals transmitted respectively on two ports can be inferred from each other, and whether they are related to the reception quality of the signals received on the two ports and before the two signals.

[0017] As an embodiment, the benefits of the above method include: adapting to more complex channel environments and application scenarios.

[0018] As an embodiment, the benefits of the above method include: adapting to but not limited to scenarios where RIS is adopted.

[0019] As an embodiment, the benefits of the above method include: improving transmission reliability and system performance.

[0020] According to one aspect of the present application, it is characterized in that whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0021] As an embodiment, the characteristic of the above method is that whether the large-scale characteristics of the channel experienced by the first signal can be inferred from the channel experienced by the second signal is related to the difference between the first reception quality and the second reception quality.

[0022] .

[0023] As an embodiment, the benefits of the above method include: adapting to more complex channel environments and application scenarios.

[0024] As an embodiment, the benefits of the above method include: improving transmission reliability and system performance.

[0025] According to one aspect of the present application, it is characterized in that whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on whether the first node sends the first information block, or whether the first condition is met depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0026] As an embodiment, the characteristic of the above method is that whether there is a relationship between the large-scale characteristics of the two channels is related to whether the relevant information is reported or the reported information.

[0027] As an embodiment, the above method has the following benefits: by reporting relevant information, it is ensured that the receiving end and the transmitting end have consistent understanding of the large-scale characteristics.

[0028] According to one aspect of the present application, it is characterized in that the first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port;

[0029] The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

[0030] According to one aspect of the present application, it is characterized in that the first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set;

[0031] Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0032] As an embodiment, the characteristics of the above method include: whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal is related to the relationship between the second signal and the first resource set.

[0033] As an embodiment, the characteristics of the above method include: whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal is related to the relationship between the first signal and the first resource set, and the relationship between the second signal and the first resource set.

[0034] According to one aspect of the present application, it is characterized in that, only when the first condition is satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0035] As an embodiment, the benefits of the above method include: more flexible design and improved system performance.

[0036] According to one aspect of the present application, it is characterized by comprising:

[0037] receiving a second information block;

[0038] The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0039] As an embodiment, the advantages of the above method include: good backward compatibility and minor changes to the standard.

[0040] As an embodiment, the benefits of the above method include: facilitating global optimization.

[0041] According to one aspect of the present application, it is characterized by comprising:

[0042] receiving a third information block;

[0043] The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0044] As an embodiment, the advantages of the above method include: good backward compatibility and minor changes to the standard.

[0045] As an embodiment, the benefits of the above method include: facilitating global optimization.

[0046] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0047] sending a third signal and a fourth signal on the first port and the second port, respectively;

[0048] Sending a first signal and a second signal on the first port and the second port respectively, wherein the first signal is later than the third signal, and the second signal is later than the fourth signal;

[0049] Whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0050] According to one aspect of the present application, it is characterized in that whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0051] According to one aspect of the present application, it is characterized in that whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the receivers of the third signal and the fourth signal send the first information block, or whether the first condition is satisfied depends on the first information block sent by the receivers of the third signal and the fourth signal; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0052] According to one aspect of the present application, it is characterized in that the first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port;

[0053] The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

[0054] According to one aspect of the present application, it is characterized in that the first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set;

[0055] Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0056] According to one aspect of the present application, it is characterized in that, only when the first condition is satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0057] According to one aspect of the present application, it is characterized by comprising:

[0058] sending a second information block;

[0059] The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0060] According to one aspect of the present application, it is characterized by comprising:

[0061] Sending a third information block;

[0062] The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0063] The present application discloses a first node used for wireless communication, characterized by comprising:

[0064] a first receiver receiving a third signal and a fourth signal at a first port and a second port, respectively;

[0065] The first receiver receives a first signal and a second signal on the first port and the second port respectively, the first signal is later than the third signal, and the second signal is later than the fourth signal;

[0066] Whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0067] The present application discloses a second node used for wireless communication, characterized by comprising:

[0068] a second transmitter for transmitting a third signal and a fourth signal on the first port and the second port, respectively;

[0069] The second transmitter transmits a first signal and a second signal on the first port and the second port respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal;

[0070] Whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0071] As an example, compared with traditional solutions, this application has the following advantages:

[0072] - Enhanced inference of the relationship between the large-scale properties of two channels;

[0073] -Adapt to more complex channel environments and application scenarios;

[0074] -Good backward compatibility and minimal changes to the standard;

[0075] -Improved transmission reliability;

[0076] -Improved system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] 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:

[0078] FIG1 shows a flow chart of a first signal, a second signal, a third signal, and a fourth signal according to an embodiment of the present application;

[0079] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0080] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0081] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0082] FIG5 shows a flow chart of wireless transmission according to an embodiment of the present application;

[0083] FIG6 shows a schematic diagram of a first condition according to an embodiment of the present application;

[0084] FIG7 is a schematic diagram showing the relationship between the first condition and the first information block according to an embodiment of the present application;

[0085] FIG8 is a schematic diagram showing a first port, a second port, a first signal, a second signal, a third signal, and a fourth signal according to an embodiment of the present application;

[0086] FIG9 is a schematic diagram showing the relationship between the first condition and the first resource set according to an embodiment of the present application;

[0087] FIG10 is a schematic diagram showing the relationship between a first condition and a first resource set according to another embodiment of the present application;

[0088] FIG11 is a schematic diagram showing a first characteristic subset according to an embodiment of the present application;

[0089] FIG12 shows a schematic diagram of a second information block according to an embodiment of the present application;

[0090] FIG13 shows a schematic diagram of a third information block according to an embodiment of the present application;

[0091] FIG14 shows a structural block diagram of a processing device used in a first node device according to an embodiment of the present application;

[0092] FIG15 shows a structural block diagram of a processing device used in a second node device according to an embodiment of the present application. DETAILED DESCRIPTION

[0093] The technical solution of this application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Based on considerations such as flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, for example (but not limited to) the embodiment in FIG1 and the embodiments in FIG5-13, the embodiment in FIG5 and the embodiments in FIG6-13, and so on.

[0094] Example 1

[0095] Example 1 illustrates a flow chart of the first signal, the second signal, the third signal, and the fourth signal according to one embodiment of the present application, as shown in FIG1 . In FIG1 , each block 100 represents a step. In particular, the order of the steps in the blocks does not represent a specific temporal relationship between the steps.

[0096] In Example 1, the first node in the present application receives a third signal and a fourth signal on a first port and a second port, respectively, in step 101; receives a first signal and a second signal on the first port and the second port, respectively, in step 102; wherein, the first signal is later than the third signal, and the second signal is later than the fourth signal; whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0097] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the first condition includes multiple sub-conditions; whether one of the multiple sub-conditions is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0098] As a sub-embodiment of the above embodiment, when the multiple sub-conditions are all satisfied, the first condition is satisfied; when one of the multiple sub-conditions is not satisfied, the first condition is not satisfied.

[0099] As a sub-embodiment of the above embodiment, when one of the multiple sub-conditions is satisfied, the first condition is satisfied; when none of the multiple sub-conditions are satisfied, the first condition is not satisfied.

[0100] As an embodiment, the third signal and the first signal are signals transmitted on the first port at different times; the fourth signal and the second signal are signals transmitted on the second port at different times.

[0101] As an embodiment, the third signal and the first signal are the same type of RS, and the fourth signal and the second signal are the same type of RS.

[0102] As an embodiment, the third signal and the fourth signal are both RS (Reference signal), the first port is an RS port, the first signal and the second signal are both RS (Reference signal), and the second port is an RS port.

[0103] As an embodiment, the third signal is a DMRS (Demodulation reference signal), the first signal is a DMRS, and the first port is a DMRS port.

[0104] As an embodiment, the third signal is a PDCCH (Physical downlink control channel) DMRS (Demodulation reference signal), the first signal is a PDCCH DMRS, and the first port is a PDCCH DMRS port.

[0105] As an embodiment, the third signal is a PDSCH (Physical downlink shared channel) DMRS (Demodulation reference signal), the first signal is a PDSCH DMRS, and the first port is a PDSCH DMRS port.

[0106] As an embodiment, the third signal is a CSI-RS (Channel State Information-Reference Signal), the first signal is a CSI-RS, and the first port is a CSI-RS port.

[0107] As an embodiment, the third signal is a SS / PBCH (synchronization signal / physical broadcast channel) block, the first signal is a SS / PBCH block, and the first port is a SS / PBCH block port.

[0108] As an embodiment, the third signal is a synchronization signal, the first signal is a synchronization signal, and the first port is a synchronization signal port.

[0109] As an embodiment, the fourth signal is a DMRS (Demodulation reference signal), the second signal is a DMRS, and the second port is a DMRS port.

[0110] As an embodiment, the fourth signal is a PDCCH (Physical downlink control channel) DMRS (Demodulation reference signal), the second signal is a PDCCH DMRS, and the second port is a PDCCH DMRS port.

[0111] As an embodiment, the fourth signal is a PDSCH (Physical downlink shared channel) DMRS (Demodulation reference signal), the second signal is a PDSCH DMRS, and the second port is a PDSCH DMRS port.

[0112] As an embodiment, the fourth signal is a CSI-RS (Channel State Information-Reference Signal), the second signal is a CSI-RS, and the second port is a CSI-RS port.

[0113] As an embodiment, the fourth signal is a SS / PBCH (synchronization signal / physical broadcast channel) block, the second signal is a SS / PBCH block, and the second port is a SS / PBCH block port.

[0114] As an embodiment, the fourth signal is a synchronization signal, the second signal is a synchronization signal, and the second port is a synchronization signal port.

[0115] Typically, the synchronization signal includes at least one of a PSS (primary synchronization signal) or an SSS (secondary synchronization signal).

[0116] As an embodiment, the first signal and the third signal are on the same cell, and the second signal and the fourth signal are on the same cell.

[0117] As an embodiment, the third signal and the fourth signal are in the same cell.

[0118] As an embodiment, the third signal and the fourth signal are in different cells.

[0119] As an embodiment, the third signal and the fourth signal are in the same BWP (Bandwidth part) of the same cell.

[0120] As an embodiment, the third signal and the fourth signal are in different BWPs of the same cell.

[0121] As an embodiment, the port number of the PDSCH DMRS starts from 1000, the port number of the PDCCH DMRS starts from 2000, the port number of the CSI-RS starts from 3000, and the port number of the SS / PBCH block starts from 4000.

[0122] As an embodiment, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal includes: whether the first node believes / assumes that the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0123] As an embodiment, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal includes: whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the large-scale characteristics of the channel transmitting the second signal.

[0124] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the large-scale characteristics of the channel transmitting the first signal can be inferred from the large-scale characteristics of the channel transmitting the second signal.

[0125] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the large-scale characteristics of the channel transmitting the second signal.

[0126] As an embodiment, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal includes: whether the first node assumes that the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0127] As an embodiment, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal includes: whether the first node believes that the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0128] As an embodiment, whether the large-scale characteristics of the channel for transmitting the first signal can be inferred from the channel for transmitting the second signal includes: whether the sender of the first signal believes that the first node can infer the large-scale characteristics of the channel for transmitting the first signal from the channel for transmitting the second signal.

[0129] As an embodiment, whether the large-scale characteristics of the channel for transmitting the first signal can be inferred from the channel for transmitting the second signal includes: whether the sender of the first signal assumes that the first node can infer the large-scale characteristics of the channel for transmitting the first signal from the channel for transmitting the second signal.

[0130] As an embodiment, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal includes: whether one or more of the delay spread, Doppler spread, Doppler shift, average delay or spatial reception parameters of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0131] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: one or more of the delay spread, Doppler spread, Doppler shift, average delay, spatial transmission parameters or spatial reception parameters of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0132] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the first signal and the second signal are quasi colocated (QCL).

[0133] As an embodiment, the large-scale characteristics of the channel for transmitting the first signal can be inferred from the channel for transmitting the second signal, including: estimating the channel for transmitting the second signal is used to estimate the channel for transmitting the first signal.

[0134] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the large-scale characteristics of the channel transmitting the second signal are used to estimate the channel transmitting the first signal.

[0135] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the large-scale characteristics of the channel transmitting the second signal are used for receiving the first signal.

[0136] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the large-scale characteristics of the channel transmitting the second signal are used to estimate the large-scale characteristics of the channel transmitting the first signal.

[0137] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal, including: the large-scale characteristics of the channel transmitting the first signal and the large-scale characteristics of the channel transmitting the second signal are the same.

[0138] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal, including: each of the delay spread, Doppler spread, Doppler shift, average delay, spatial transmission parameters, and spatial reception parameters of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal.

[0139] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal, including: each of the delay spread, Doppler spread, Doppler shift, average delay, and spatial reception parameters of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal.

[0140] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the first signal and the second signal are not quasi colocated (QCL).

[0141] As an embodiment, the large-scale characteristics of the channel for transmitting the first signal cannot be inferred from the channel for transmitting the second signal includes: the channel estimation for transmitting the second signal is not used for estimating the channel for transmitting the first signal.

[0142] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the large-scale characteristics of the channel transmitting the second signal are not used for receiving the first signal.

[0143] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the large-scale characteristics of the channel transmitting the second signal are not used to estimate the channel transmitting the first signal.

[0144] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the large-scale characteristics of the channel transmitting the second signal are not used to estimate the large-scale characteristics of the channel transmitting the first signal.

[0145] As an embodiment, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal includes: the large-scale characteristics of the channel transmitting the first signal and the large-scale characteristics of the channel transmitting the second signal are different.

[0146] As an embodiment, the large scale properties include one or more of delay spread, Doppler spread, Doppler shift, average delay, average gain or spatial Rx parameter.

[0147] As an embodiment, the large-scale characteristics include: delay spread, Doppler spread, Doppler shift and average delay.

[0148] As an embodiment, the large-scale characteristics include: delay spread, Doppler spread, Doppler shift, average delay and spatial reception parameters.

[0149] As an embodiment, the large-scale characteristics include: delay spread, Doppler spread, Doppler shift, average delay, spatial transmission parameters and spatial reception parameters.

[0150] As an embodiment, the large-scale characteristics include: spatial reception parameters.

[0151] As an embodiment, the large-scale characteristics include: spatial transmission parameters.

[0152] As an embodiment, the large-scale characteristics include: at least one of a spatial transmission parameter or a spatial reception parameter.

[0153] As an embodiment, the large-scale characteristics include: spatial transmission parameters and spatial reception parameters.

[0154] As an embodiment, the large-scale characteristics include: Doppler spread and Doppler shift.

[0155] As an embodiment, the large-scale characteristics include: Doppler shift and average delay.

[0156] As an embodiment, the channel for transmitting the first signal includes: the channel traversed by the first signal.

[0157] As an embodiment, the channel for transmitting the second signal includes: the channel traversed by the second signal.

[0158] As an embodiment, the channel for transmitting the first signal includes: the channel into which the first signal is multiplexed.

[0159] As an embodiment, the channel for transmitting the second signal includes: the channel into which the second signal is multiplexed.

[0160] As an embodiment, the channel for transmitting the first signal includes: the channel to which the first signal is mapped.

[0161] As an embodiment, the channel for transmitting the second signal includes: the channel to which the second signal is mapped.

[0162] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal only when the first condition is met, including: when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; when the first condition is not met, the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal.

[0163] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal only when the first condition is met, including: when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; when the first condition is not met, the first node cannot assume that the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0164] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal only when the first condition is met, including: when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; when the first condition is not met, the first node believes that the large-scale characteristics of the channel transmitting the first signal cannot be inferred from the channel transmitting the second signal.

[0165] As an embodiment, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal only when the first condition is met, including: when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; when the first condition is not met, the first node does not infer the large-scale characteristics of the channel transmitting the first signal from the channel transmitting the second signal.

[0166] As an embodiment, when the first condition is satisfied, the large-scale characteristics of the channel transmitting the first signal and the large-scale characteristics of the channel transmitting the second signal can be inferred from each other.

[0167] As an embodiment, only when the first condition is satisfied, the large-scale characteristics of the channel transmitting the first signal and the large-scale characteristics of the channel transmitting the second signal can be inferred from each other.

[0168] As an embodiment, when the first condition is not satisfied, the large-scale characteristics of the channel transmitting the first signal and the large-scale characteristics of the channel transmitting the second signal cannot be inferred from each other.

[0169] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, which includes: the reception of the first signal is later than the reception of the third signal, and the reception of the second signal is later than the reception of the fourth signal.

[0170] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, which includes: the sending of the first signal is later than the sending of the third signal, and the sending of the second signal is later than the sending of the fourth signal.

[0171] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, which includes: the first node receives the first signal after receiving the third signal, and the first node receives the second signal after receiving the fourth signal.

[0172] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, including: the resources occupied by the first signal in the time domain are later than the resources occupied by the third signal in the time domain; the resources occupied by the second signal in the time domain are later than the resources occupied by the fourth signal in the time domain.

[0173] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, which includes: the symbols occupied by the first signal are later than the symbols occupied by the third signal; and the symbols occupied by the second signal are later than the symbols occupied by the fourth signal.

[0174] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, including: the time slot occupied by the first signal is later than the time slot occupied by the third signal; the time slot occupied by the second signal is later than the time slot occupied by the fourth signal.

[0175] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, including: the subframe occupied by the first signal is later than the subframe occupied by the third signal; the subframe occupied by the second signal is later than the subframe occupied by the fourth signal.

[0176] As an embodiment, the first signal is later than the third signal, and the second signal is later than the fourth signal, including: the SFN (System Frame Number) to which the first signal belongs is greater than the SFN to which the third signal belongs; the SFN to which the second signal belongs is greater than the SFN to which the fourth signal belongs.

[0177] As an embodiment, the first node determines whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal according to whether the first condition is satisfied.

[0178] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on a target value, and the target value depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0179] As an embodiment, whether the first condition is satisfied depends on a target value, including: whether the first condition is satisfied depends on a magnitude relationship between the target value and a target threshold.

[0180] As an embodiment, whether the first condition is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is less than the target threshold, the first condition is satisfied.

[0181] As an embodiment, whether the first condition is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is greater than the target threshold, the first condition is not satisfied.

[0182] As an embodiment, whether the first condition is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is equal to the target threshold, the first condition is satisfied.

[0183] As an embodiment, whether the first condition is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is equal to the target threshold, the first condition is not satisfied.

[0184] As an embodiment, whether the first condition is satisfied depends on the target value, including: whether the first condition is satisfied depends on whether the target value belongs to a target value set, the target value set includes one or more real numbers or the target value set includes one or more non-negative real numbers.

[0185] As a sub-embodiment of the above embodiment, the first condition is satisfied only when the target value belongs to the target value set.

[0186] As a sub-embodiment of the above embodiment, when the target value belongs to the target value set, the first condition is satisfied.

[0187] As a sub-embodiment of the above embodiment, when the target value does not belong to the target value set, the first condition is not satisfied.

[0188] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether one of the multiple sub-conditions is satisfied depends on a target value, and the target value depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0189] As an embodiment, whether one of the multiple sub-conditions is satisfied and depends on the target value includes: whether one of the multiple sub-conditions is satisfied and depends on the size relationship between the target value and the target threshold.

[0190] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is less than the target threshold, the one of the multiple sub-conditions is satisfied.

[0191] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is greater than the target threshold, the one of the multiple sub-conditions is not satisfied.

[0192] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is equal to the target threshold, the one of the multiple sub-conditions is satisfied.

[0193] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the size relationship between the target value and the target threshold, including: when the target value is equal to the target threshold, the one of the multiple sub-conditions is not satisfied.

[0194] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the target value, including: whether one of the multiple sub-conditions is satisfied depends on whether the target value belongs to a target value set, the target value set includes one or more real numbers or the target value set includes one or more non-negative real numbers.

[0195] As a sub-embodiment of the above embodiment, the one sub-condition among the multiple sub-conditions is satisfied only when the target value belongs to the target value set.

[0196] As a sub-embodiment of the above embodiment, when the target value belongs to the target value set, the one sub-condition among the multiple sub-conditions is satisfied.

[0197] As a sub-embodiment of the above embodiment, when the target value does not belong to the target value set, the one sub-condition among the multiple sub-conditions is not satisfied.

[0198] As an embodiment, the target threshold is fixed.

[0199] As an embodiment, the target threshold is configurable.

[0200] As an embodiment, the target threshold is configured by RRC signaling.

[0201] As an embodiment, the target threshold is configured by MAC CE signaling.

[0202] As an embodiment, the target threshold is indicated by DCI.

[0203] As an embodiment, the target threshold is indicated by physical layer signaling.

[0204] As an embodiment, the target threshold depends on UE capabilities.

[0205] As an embodiment, the target threshold is determined by the first node.

[0206] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value represents the difference between the reception quality of the third signal and the reception quality of the fourth signal.

[0207] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value is calculated based on at least the reception quality of the third signal and the reception quality of the fourth signal.

[0208] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value and the reception quality of the third signal and the reception quality of the fourth signal are functionally related.

[0209] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value and the reception quality of the third signal and the reception quality of the fourth signal are in a mapping relationship.

[0210] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value is obtained by looking up a table based on at least the reception quality of the third signal and the reception quality of the fourth signal.

[0211] As an embodiment, the target value depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the target value is BLER (block error rate), and the target value is obtained by calculation, mapping or table lookup based on at least the reception quality of the third signal and the reception quality of the fourth signal.

[0212] As an embodiment, the first node obtains the reception quality of the third signal by measurement, and obtains the reception quality of the fourth signal by measurement, and then determines whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal by comparing the reception quality of the third signal and the reception quality of the fourth signal.

[0213] As an embodiment, the first node obtains the reception quality of the third signal and the reception quality of the fourth signal by receiving the third signal and the fourth signal using the same spatial reception parameters.

[0214] As an embodiment, the first node obtains channel information by measuring the third signal and the fourth signal, and the channel information includes but is not limited to a channel parameter matrix H w ,w=1,…,W, one or more of correlation, received power, RSRP or phase; wherein W is the number of subbands, and H w The dimension is R×T, where T and R are the number of transmitting antenna ports and the number of receiving antennas, respectively.

[0215] As an embodiment, the first node determines, based on the channel information, whether the large-scale characteristics of the channel for transmitting the first signal can be inferred from the channel for transmitting the second signal.

[0216] As an embodiment, the first node adopts the precoding matrix V for the channel parameter matrix w ,w=1,…,W, the equivalent channel P after precoding is obtained w ,w=1,…,W,P w =H w ·V w , wherein the V w The dimension is T×V, where V is the rank or number of layers; the precoding matrix V is determined by, for example but not limited to, matrix decomposition, table lookup, quantization, averaging, filtering or interpolation. w ,w=1,…,W;Use, for example but not limited to, SINR (signal-to-noise and interference ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio) criteria and combine the interference signal and noise information to calculate P w ,w=1,…,W equivalent channel capacity, and then determine CQI by looking up the equivalent channel capacity. Generally speaking, the direct mapping of CQI value depends on the receiver performance or hardware-related factors such as modulation mode. The precoding matrix V w ,w=1,…,W is usually reported by the first node through PMI.

[0217] As an embodiment, the reception quality includes RSRP (Reference Signal Received Power).

[0218] As an embodiment, the reception quality includes L1 (Layer 1)-RSRP.

[0219] As an embodiment, the reception quality includes RSRQ (Reference Signal Received Quality).

[0220] As an embodiment, the reception quality includes SINR (Signal-to-Noise and Interference Ratio) or CQI (Channel Quality Indicator).

[0221] As an embodiment, the reception quality includes L1-SINR.

[0222] Example 2

[0223] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0224] FIG2 illustrates a network architecture 200 for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture 200 for LTE, LTE-A, and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5GNR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 in sidelink communication with UE 201, an NG-RAN (Next Generation Radio Access Network) 202, a 5G Core Network (5GC) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS 200 may interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in FIG2 , the 5GS / EPS 200 provides packet-switched services. However, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure can be extended to networks providing circuit-switched services. The NG-RAN 202 includes an NR (New Radio) Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitter / receiver point), or some other suitable terminology. The gNB 203 provides an access point to the 5GC / EPC 210 for the UE 201. Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device.Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology. The gNB 203 connects to the 5GC / EPC 210 via the S1 / NG interface. The 5GC / EPC 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. Internet Services 230 includes operator-specific Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0225] As an embodiment, the first node in the present application includes the UE201.

[0226] As an embodiment, the first node in the present application includes the UE241.

[0227] As an embodiment, the second node in this application includes the gNB203.

[0228] Example 3

[0229] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG3 .

[0230] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture of the control plane 300 for communication between a first communication node device (UE, gNB, or RSU in V2X) and a second communication node device (gNB, UE, or RSU in V2X), or between two UEs, using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305, located above PHY 301, is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0231] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0232] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0233] As an embodiment, the first signal is generated by the PHY 301 or the PHY 351 .

[0234] As an embodiment, the second signal is generated by the PHY 301 or the PHY 351 .

[0235] As an embodiment, the third signal is generated by the PHY 301 or the PHY 351 .

[0236] As an embodiment, the fourth signal is generated by the PHY 301 or the PHY 351 .

[0237] As an embodiment, the first information block is generated in the RRC sublayer 306.

[0238] As an embodiment, the second information block is generated in the RRC sublayer 306.

[0239] As an embodiment, the second information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0240] As an embodiment, the second information block is generated by the PHY301 or the PHY351.

[0241] As an embodiment, the third information block is generated in the RRC sublayer 306.

[0242] As an embodiment, the third information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0243] As an embodiment, the third information block is generated by the PHY301 or the PHY351.

[0244] As an embodiment, the higher layer in this application refers to a layer above the physical layer.

[0245] Example 4

[0246] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0247] 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 .

[0248] 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 .

[0249] During transmission from the first communications device 410 to the second communications device 450, at the first communications device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the DL, 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 communications device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communications 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 constellation mapping 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 parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time and / or frequency domains, 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.

[0250] During transmission from the first communications device 410 to the second communications device 450, each receiver 454 receives a signal at the second communications device 450 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 physical layer data signal and reference signal are demultiplexed by the receive processor 456, 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 parallel streams destined for the second communications device 450. The symbols on each parallel 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. In the DL (Downlink), 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 for L3 processing. The controller / processor 459 is also responsible for error detection using an acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol to support HARQ operations.

[0251] During transmission from the second communications device 450 to the first communications device 410, at the second communications device 450, a data source 467 is used 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 transmit functionality at the first communications device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications device 410, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communications 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 parallel streams into multi-carrier / single-carrier symbol streams. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, these streams are 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.

[0252] During 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 for 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. The controller / processor 475 provides demultiplexing between transmit and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0253] 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 device at least: receives a third signal and a fourth signal on a first port and a second port, respectively; receives a first signal and a second signal on the first port and the second port, respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal; wherein whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; and whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0254] 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: receiving a third signal and a fourth signal on a first port and a second port, respectively; receiving a first signal and a second signal on the first port and the second port, respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal; wherein, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0255] 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 device at least: transmits a third signal and a fourth signal on a first port and a second port, respectively; transmits a first signal and a second signal on the first port and the second port, respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal; wherein whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; and whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0256] 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: sending a third signal and a fourth signal on a first port and a second port, respectively; sending a first signal and a second signal on the first port and the second port, respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal; wherein, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0257] As an embodiment, the first node in the present application includes the second communication device 450.

[0258] As an embodiment, the second node in the present application includes the first communication device 410.

[0259] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signal in the present application; and at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the first signal in the present application.

[0260] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second signal in the present application; and at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the second signal in the present application.

[0261] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the third signal in the present application; and at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the third signal in the present application.

[0262] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the fourth signal in the present application; and at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the fourth signal in the present application.

[0263] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second information block in the present application; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the second information block in the present application.

[0264] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the third information block in the present application; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the third information block in the present application.

[0265] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, and the memory 460} is used to send the first information block in this application; and at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive the first information block in this application.

[0266] Example 5

[0267] Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in FIG5. In FIG5, the first node U1 and the second node N2 are two communication nodes transmitted via the air interface, wherein the steps in blocks F51 to F53 are optional.

[0268] For the first node U1, in step S5101, the second information block is received; in step S5102, the third information block is received; in step S5103, the third signal and the fourth signal are received on the first port and the second port respectively; in step S5104, the first information block is sent; in step S5105, the first signal and the second signal are received on the first port and the second port respectively;

[0269] For the second node N2, the second information block is sent in step S5201; the third information block is sent in step S5202; the third signal and the fourth signal are sent on the first port and the second port respectively in step S5203; the first information block is received in step S5204; and the first signal and the second signal are sent on the first port and the second port respectively in step S5205.

[0270] In Example 5, the first signal is later than the third signal, and the second signal is later than the fourth signal; whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether the first condition is satisfied; only when the first condition is satisfied, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0271] As an embodiment, the first node U1 is the first node in this application.

[0272] As an embodiment, the second node N2 is the second node in this application.

[0273] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0274] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0275] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0276] As an embodiment, the first signal is transmitted in a PDSCH (Physical downlink shared channel).

[0277] As an embodiment, the second signal is transmitted in a PDSCH (Physical downlink shared channel).

[0278] As an embodiment, the third signal is transmitted in a PDSCH (Physical downlink shared channel).

[0279] As an embodiment, the fourth signal is transmitted in a PDSCH (Physical downlink shared channel).

[0280] As an embodiment, the second information block is transmitted in a PDSCH (Physical downlink shared channel).

[0281] As an embodiment, the second information block is transmitted in a PDCCH (Physical Downlink Control Channel).

[0282] As an embodiment, the third information block is transmitted in a PDSCH (Physical downlink shared channel).

[0283] As an embodiment, the third information block is transmitted in a PDCCH (Physical Downlink Control Channel).

[0284] As an embodiment, the first information block is transmitted in a PUSCH (Physical Uplink Shared Channel).

[0285] As an embodiment, the first information block is transmitted in a PUCCH (Physical Uplink Control Channel).

[0286] As an embodiment, the steps in box F51 in Figure 5 exist, and the above-mentioned method in the first node U1 used for wireless communication includes: receiving a second information block; wherein the second information block indicates the first port; or, the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0287] As an embodiment, the steps in box F51 in Figure 5 exist, and the above-mentioned method in the second node N2 used for wireless communication includes: sending a second information block; wherein the second information block indicates the first port; or, the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0288] As an embodiment, the steps in box F52 in Figure 5 exist, and the above-mentioned method in the first node U1 used for wireless communication includes: receiving a third information block; wherein the third information block indicates the second port; or, the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0289] As an embodiment, the steps in box F52 in Figure 5 exist, and the above-mentioned method in the second node N2 used for wireless communication includes: sending a third information block; wherein the third information block indicates the second port; or, the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0290] As an embodiment, the step in block F53 in FIG. 5 does not exist.

[0291] As an embodiment, the steps in block F53 of FIG. 5 exist.

[0292] As an embodiment, the steps in box F53 in Figure 5 exist, and the above-mentioned method in the first node U1 used for wireless communication includes: sending a first information block; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0293] As an embodiment, the steps in box F53 in Figure 5 exist, and the above-mentioned method in the second node N2 used for wireless communication includes: receiving a first information block; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0294] As an embodiment, the second information block is received no later than the third information block is received.

[0295] As an embodiment, the second information block is received earlier than the third information block.

[0296] As an embodiment, the second information block is no later than the first signal and the second signal.

[0297] As an embodiment, the second information block is no later than the third signal and the fourth signal.

[0298] As an embodiment, the second information block and the third information block are carried by the same signaling.

[0299] As an embodiment, the second information block and the third information block are carried by different signaling.

[0300] As an embodiment, the second information block and the third information block are carried by the same RRC signaling.

[0301] As an embodiment, the second information block and the third information block are carried by different RRC signaling.

[0302] As an embodiment, the third information block is no later than the first signal and the second signal.

[0303] As an embodiment, the third information block is no later than the third signal and the fourth signal.

[0304] As an embodiment, the third signal and the fourth signal are received earlier than the first signal and the second signal.

[0305] As an embodiment, the sending of the first information block is later than the receiving of the third signal and the fourth signal.

[0306] As an embodiment, the first information block is sent earlier than the first signal and the second signal are received.

[0307] Example 6

[0308] Example 6 illustrates a schematic diagram of the first condition according to an embodiment of the present application; as shown in FIG6 .

[0309] In Example 6, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0310] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: the first condition includes multiple sub-conditions; whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality.

[0311] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: whether the first condition is satisfied depends on whether the difference between the first reception quality and the second reception quality belongs to a first value set, the first value set consisting of one or more real numbers or the first value set consisting of one or more non-negative real numbers. As a sub-embodiment of the above embodiment, the first condition is satisfied only when the difference between the first reception quality and the second reception quality belongs to the first value set.

[0312] As a sub-embodiment of the above embodiment, when the difference between the first reception quality and the second reception quality belongs to the first value set, the first condition is met.

[0313] As a sub-embodiment of the above embodiment, when the difference between the first reception quality and the second reception quality does not belong to the first value set, the first condition is not met.

[0314] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: whether the first condition is satisfied depends on the size relationship between the difference between the first reception quality and the second reception quality and a first threshold.

[0315] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is less than a first threshold, the first condition is satisfied.

[0316] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is greater than a first threshold, the first condition is not satisfied.

[0317] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is equal to a first threshold, the first condition is satisfied.

[0318] As an embodiment, whether the first condition is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is equal to a first threshold, the first condition is not satisfied.

[0319] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality, including: whether one of the multiple sub-conditions is satisfied depends on the size relationship between the difference between the first reception quality and the second reception quality and the first threshold.

[0320] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is less than a first threshold, the one of the multiple sub-conditions is satisfied.

[0321] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is greater than a first threshold, the one of the multiple sub-conditions is not satisfied.

[0322] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is equal to a first threshold, the one of the multiple sub-conditions is satisfied.

[0323] As an embodiment, whether one of the multiple sub-conditions is satisfied depends on the difference between the first reception quality and the second reception quality, including: when the difference between the first reception quality and the second reception quality is equal to a first threshold, the one of the multiple sub-conditions is not satisfied.

[0324] As an embodiment, the difference between the first reception quality and the second reception quality is equal to the value obtained by subtracting the second reception quality from the first reception quality.

[0325] As an embodiment, the difference between the first reception quality and the second reception quality is equal to the absolute value of the value obtained by subtracting the second reception quality from the first reception quality.

[0326] As an embodiment, when the first reception quality is not less than the second reception quality, the difference between the first reception quality and the second reception quality is equal to the value obtained by subtracting the second reception quality from the first reception quality; when the first reception quality is less than the second reception quality, the difference between the first reception quality and the second reception quality is equal to the value obtained by subtracting the first reception quality from the second reception quality.

[0327] As an embodiment, the first threshold is fixed.

[0328] As an embodiment, the first threshold is configurable.

[0329] As an embodiment, the first threshold is configured by RRC signaling.

[0330] As an embodiment, the first threshold is configured by MAC CE signaling.

[0331] As an embodiment, the first threshold is indicated by DCI.

[0332] As an embodiment, the first threshold is indicated by physical layer signaling.

[0333] As an embodiment, the first threshold depends on UE capabilities.

[0334] As an embodiment, the first threshold is determined by the first node.

[0335] As an embodiment, the first reception quality depends on the reception of the third signal, including: the first reception quality is the reception quality of the third signal.

[0336] As an embodiment, the first reception quality depends on the reception of the third signal, including: the first reception quality is the reception quality of the third signal, or the first reception quality is obtained after scaling the reception quality of the third signal.

[0337] As an embodiment, the first reception quality is obtained after adjusting the reception quality of the third signal, and includes: the first reception quality is equal to the sum of the reception quality of the third signal and a first offset value.

[0338] As an embodiment, the first reception quality is obtained after adjusting the reception quality of the third signal, and includes: the first reception quality is equal to the reception quality of the third signal minus a first offset value.

[0339] As an embodiment, the first reception quality depends on the reception of the third signal, including: the first reception quality and the reception quality of the third signal are in a functional relationship.

[0340] As an embodiment, the first reception quality depends on the reception of the third signal, including: the first reception quality and the reception quality of the third signal are in a mapping relationship.

[0341] As an embodiment, the first reception quality dependence on the reception of the third signal includes: the first reception quality is generated based on the reception quality of the third signal and the reception quality of other signals other than the third signal.

[0342] As an embodiment, the first reception quality dependence on the reception of the third signal includes: the first reception quality dependence on the first offset value and the reception quality of the third signal.

[0343] As a sub-embodiment of the above embodiment, the first reception quality is equal to the sum of the first offset value and the reception quality of the third signal.

[0344] As a sub-embodiment of the above embodiment, the first reception quality is equal to the difference between the first offset value and the reception quality of the third signal.

[0345] As a sub-embodiment of the above embodiment, the first reception quality is equal to a value obtained by subtracting the reception quality of the third signal from the first offset value.

[0346] As a sub-embodiment of the above embodiment, the first reception quality is equal to the value obtained by subtracting the first offset value from the reception quality of the third signal.

[0347] Typically, the unit of the first offset value is dB.

[0348] As an embodiment, the first offset value is a power offset.

[0349] As an embodiment, the first offset value is a power value.

[0350] As an embodiment, the first offset value is fixed.

[0351] As an embodiment, the first offset value is configurable.

[0352] As an embodiment, the first offset value depends on UE capabilities.

[0353] As an embodiment, the first offset value is determined by the first node.

[0354] As an embodiment, the second reception quality depends on the reception of the fourth signal, including: the second reception quality is the reception quality of the fourth signal.

[0355] As an embodiment, the second reception quality depends on the reception of the fourth signal, including: the second reception quality is the reception quality of the fourth signal, or the second reception quality is obtained after scaling the reception quality of the fourth signal.

[0356] As an embodiment, the second reception quality is obtained after adjusting the reception quality of the fourth signal, and includes: the second reception quality is equal to the sum of the reception quality of the fourth signal and a second offset value.

[0357] As an embodiment, the second reception quality is obtained after adjusting the reception quality of the fourth signal, and includes: the second reception quality is equal to the reception quality of the fourth signal minus a second offset value.

[0358] As an embodiment, the second reception quality depends on the reception of the fourth signal, including: the second reception quality and the reception quality of the fourth signal are functionally related.

[0359] As an embodiment, the second reception quality depends on the reception of the fourth signal, including: the second reception quality and the reception quality of the fourth signal are in a mapping relationship.

[0360] As an embodiment, the second reception quality dependence on the reception of the fourth signal includes: the second reception quality is generated based on the reception quality of the fourth signal and the reception quality of other signals other than the fourth signal.

[0361] As an embodiment, the second reception quality dependence on the reception of the fourth signal includes: the second reception quality dependence on the second offset value and the reception quality of the fourth signal.

[0362] As a sub-embodiment of the above embodiment, the second reception quality is equal to the sum of the second offset value and the reception quality of the fourth signal.

[0363] As a sub-embodiment of the above embodiment, the second reception quality is equal to the difference between the second offset value and the reception quality of the fourth signal.

[0364] As a sub-embodiment of the above embodiment, the second reception quality is equal to a value obtained by subtracting the reception quality of the fourth signal from the second offset value.

[0365] As a sub-embodiment of the above embodiment, the second reception quality is equal to a value obtained by subtracting the second offset value from the reception quality of the fourth signal.

[0366] Typically, the unit of the first offset value is dB.

[0367] As an embodiment, the second offset value is a power offset.

[0368] As an embodiment, the second offset value is a power value.

[0369] As an embodiment, the second offset value is fixed.

[0370] As an embodiment, the second offset value is configurable.

[0371] As an embodiment, the second offset value depends on UE capabilities.

[0372] As an embodiment, the second offset value is determined by the first node.

[0373] As an embodiment, the first reception quality is RSRP, and the second reception quality is RSRP.

[0374] As an embodiment, the first reception quality is L1-RSRP, and the second reception quality is L1-RSRP.

[0375] As an embodiment, the first reception quality is RSRQ, and the second reception quality is RSRQ.

[0376] As an embodiment, the first reception quality is SINR, and the second reception quality is SINR.

[0377] As an embodiment, the first reception quality is L1-SINR, and the second reception quality is L1-SINR.

[0378] Example 7

[0379] Example 7 illustrates a schematic diagram of the relationship between the first condition and the first information block according to an embodiment of the present application; as shown in Figure 7.

[0380] In Example 7, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the first node sends the first information block, or whether the first condition is satisfied depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0381] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the first node sends a first information block.

[0382] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node sends the first information block, the first condition is satisfied.

[0383] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node sends a first information block, the first node considers that the first condition is satisfied.

[0384] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node sends the first information block, the first node assumes that the first condition is satisfied.

[0385] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node does not send the first information block, the first condition is not satisfied.

[0386] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node does not send the first information block, the first node considers that the first condition is not satisfied.

[0387] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: when the first node does not send the first information block, the first node assumes that the first condition is not satisfied.

[0388] As an embodiment, "whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal" includes: whether the first condition is satisfied depends on the first information block sent by the first node.

[0389] As an embodiment, “whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal” includes: the first information block indicates that the first condition is satisfied.

[0390] As an embodiment, “whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal” includes: the first information block indicates that the first condition is not met.

[0391] As an embodiment, the first information block indicates whether the third signal and the fourth signal are quasi co-located.

[0392] As an embodiment, when the first information block indicates that the third signal and the fourth signal are quasi-co-located, the first condition is met.

[0393] As an embodiment, when the first information block indicates that the third signal and the fourth signal are not quasi-co-located, the first condition is not met.

[0394] As an embodiment, the first information block indicates a difference between the reception quality of the third signal and the reception quality of the fourth signal.

[0395] As an embodiment, the first condition is met when the first information block indicates that the difference between the reception quality of the third signal and the reception quality of the fourth signal is less than a first threshold.

[0396] As an embodiment, when the first information block indicates that the difference between the reception quality of the third signal and the reception quality of the fourth signal is greater than a first threshold, the first condition is not met.

[0397] As an embodiment, the first condition is met when the first information block indicates that the difference between the reception quality of the third signal and the reception quality of the fourth signal is less than a first threshold.

[0398] As an embodiment, when the first information block indicates that the absolute value of the difference between the reception quality of the third signal and the reception quality of the fourth signal is greater than a first threshold, the first condition is not met.

[0399] As an embodiment, the first information block indicates whether the large-scale characteristics of the channel transmitting the third signal can be inferred from the channel transmitting the fourth signal.

[0400] As an embodiment, when the first information block indicates that the large-scale characteristics of the channel transmitting the third signal can be inferred from the channel transmitting the fourth signal, the first condition is met.

[0401] As an embodiment, when the first information block indicates that the large-scale characteristics of the channel transmitting the third signal cannot be inferred from the channel transmitting the fourth signal, the first condition is not satisfied.

[0402] As an embodiment, the first information block indicates whether the first port and the second port are quasi co-located.

[0403] As an embodiment, when the first information block indicates that the first port and the second port are quasi-co-located, the first condition is met.

[0404] As an embodiment, when the first information block indicates that the first port and the second port are not quasi-co-located, the first condition is not met.

[0405] As an embodiment, the generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the first information block indicates that the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal.

[0406] As an embodiment, the generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the first information block indicates the reception quality of the third signal and the reception quality of the fourth signal.

[0407] As an embodiment, the generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal, including: the first information block indicates the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0408] As an embodiment, the first node obtains channel information by measuring the third signal and the fourth signal, and operates on the channel information to obtain the first information block, and the operation includes but is not limited to one or more of mathematical operations, matrix decomposition, averaging, filtering, quantization, interpolation or table lookup.

[0409] Generally speaking, how to perform channel measurement and how to calculate the first information block, including how to determine whether the large-scale characteristics of the channel transmitting the third signal can be inferred from the channel transmitting the fourth signal, are determined by the equipment manufacturer. Some non-limiting implementation methods are described below:

[0410] As an embodiment, the first node estimates the large-scale characteristics of the channel experienced by the third signal by measuring the third signal, and estimates the large-scale characteristics of the channel experienced by the fourth signal by measuring the fourth signal, and then determines whether the large-scale characteristics of the channel transmitting the third signal can be inferred from the channel transmitting the fourth signal by comparing the large-scale characteristics of the channel experienced by the third signal with the large-scale characteristics of the channel experienced by the fourth signal.

[0411] As a sub-embodiment of the above embodiment, the large-scale characteristics include one or more of delay spread, Doppler spread, Doppler shift, average delay, average gain or spatial Rx parameter.

[0412] As an embodiment, the method for estimating the large-scale characteristics of the channel includes but is not limited to: channel estimation, equalization, averaging, filtering, receive beam scanning, RSRP (Reference signal received power) / RSRQ (Reference Signal Received Quality) measurement, angle of arrival (Angle of Arrival) / angle of departure (Angle-of-Departure) estimation, channel decomposition, mathematical operations, matrix decomposition, quantization, interpolation or table lookup or one or more.

[0413] As an embodiment, the first node determines whether the large-scale characteristics of the channel transmitting the signal on the first port can be inferred from the channel transmitting the signal on the second port by performing channel estimation on the third signal and channel estimation on the fourth signal.

[0414] Example 8

[0415] Example 8 illustrates a schematic diagram of a first port, a second port, a first signal, a second signal, a third signal, and a fourth signal according to an embodiment of the present application; as shown in FIG8 .

[0416] In embodiment 8, the first port is a DMRS port, the third signal is DMRS, the first signal is DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals are transmitted on the first port; the second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals are transmitted on the second port.

[0417] As an embodiment, the first port is a DMRS (Demodulation reference signal) port, and the first signal is a DMRS.

[0418] As an embodiment, the first port is a PDCCH DMRS port, and the first signal is a PDCCH DMRS.

[0419] As an embodiment, the first port is a PDSCH DMRS port, and the first signal is a PDSCH DMRS.

[0420] As an embodiment, the first port is a port of a first RS (Reference signal) resource; the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource.

[0421] As an embodiment, the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource, including: the first signal is an RS transmitted on the first port in a transmission opportunity of the first RS resource.

[0422] As an embodiment, the first signal is in a transmission opportunity of the first RS resource, and the signal transmitted on the first port includes: the first signal is a signal of the first RS transmitted on the first port, and the first RS is an RS transmitted in a transmission opportunity of the first RS resource.

[0423] As an embodiment, the first port is a DMRS (Demodulation reference signal) port, and the third signal is a DMRS.

[0424] As an embodiment, the first port is a PDCCH DMRS port, and the third signal is a PDCCH DMRS.

[0425] As an embodiment, the first port is a PDSCH DMRS port, and the third signal is a PDSCH DMRS.

[0426] As an embodiment, the first port is a port of a first RS (Reference signal) resource; the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource.

[0427] As an embodiment, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource, including: the third signal is an RS transmitted on the first port in a transmission opportunity of the first RS resource.

[0428] As an embodiment, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource, and the signal includes: the third signal is a signal of the first RS transmitted on the first port, and the first RS is an RS transmitted in a transmission opportunity of the first RS resource.

[0429] As an embodiment, the second port is a DMRS port, and the second signal is a DMRS.

[0430] As an embodiment, the second port is a PDCCH DMRS port, and the second signal is a PDCCH DMRS.

[0431] As an embodiment, the second port is a PDSCH DMRS port, and the second signal is a PDSCH DMRS.

[0432] As an embodiment, the second port is a port of a second RS resource; and the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0433] As an embodiment, the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource, including: the second signal is an RS transmitted on the second port in a transmission opportunity of the second RS resource.

[0434] As an embodiment, the second signal is in a transmission opportunity of the second RS resource, and the signal transmitted on the second port includes: the second signal is a signal of the second RS transmitted on the second port, and the second RS is an RS transmitted in a transmission opportunity of the second RS resource.

[0435] As an embodiment, the second port is a DMRS port, and the fourth signal is a DMRS.

[0436] As an embodiment, the second port is a PDCCH DMRS port, and the fourth signal is a PDCCH DMRS.

[0437] As an embodiment, the second port is a PDSCH DMRS port, and the fourth signal is a PDSCH DMRS.

[0438] As an embodiment, the second port is a port of a second RS resource; and the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0439] As an embodiment, the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource, including: the fourth signal is an RS transmitted on the second port in a transmission opportunity of the second RS resource.

[0440] As an embodiment, the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource, and the signal includes: the fourth signal is a signal of the second RS transmitted on the second port, and the second RS is an RS transmitted in a transmission opportunity of the second RS resource.

[0441] As an embodiment, the first port is a DMRS port, the first signal is DMRS; the second port is a port of a second RS resource; and the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0442] As an embodiment, the first port is a PDCCH DMRS port, the first signal is a PDCCH DMRS; the second port is a port of a second RS resource; and the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0443] As an embodiment, the first port is a PDSCH DMRS port, the first signal is a PDSCH DMRS; the second port is a port of a second RS resource; and the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0444] As an embodiment, the first port is a port of a first RS resource, the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a port of a second RS resource; and the second signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0445] As an embodiment, the first port is a port of a first RS resource, the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a DMRS port, and the second signal is DMRS.

[0446] As an embodiment, the first port is a port of a first RS resource, the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a PDCCH DMRS port, and the second signal is PDCCH DMRS.

[0447] As an embodiment, the first port is a port of a first RS resource, the first signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a PDSCH DMRS port, and the second signal is PDSCH DMRS.

[0448] As an embodiment, the first port is a DMRS port, the third signal is DMRS; the second port is a port of a second RS resource; and the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0449] As an embodiment, the first port is a PDCCH DMRS port, the third signal is a PDCCH DMRS; the second port is a port of a second RS resource; and the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0450] As an embodiment, the first port is a PDSCH DMRS port, the third signal is a PDSCH DMRS; the second port is a port of a second RS resource; and the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0451] As an embodiment, the first port is a port of a first RS resource, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a port of a second RS resource; and the fourth signal is a signal transmitted on the second port in a transmission opportunity of the second RS resource.

[0452] As an embodiment, the first port is a port of a first RS resource, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a DMRS port, and the fourth signal is DMRS.

[0453] As an embodiment, the first port is a port of the first RS resource, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a PDCCH DMRS port, and the fourth signal is PDCCH DMRS.

[0454] As an embodiment, the first port is a port of the first RS resource, the third signal is a signal transmitted on the first port in a transmission opportunity of the first RS resource; the second port is a PDSCH DMRS port, and the fourth signal is PDSCH DMRS.

[0455] As an embodiment, the first port is an antenna port of the first RS resource.

[0456] As an embodiment, the first port is any antenna port of the first RS resource.

[0457] As an embodiment, the first port is the only antenna port of the first RS resource.

[0458] As an embodiment, the first RS resource does not include other ports except the first port.

[0459] As an embodiment, in addition to the first port, the first RS resource includes at least one other port.

[0460] As an embodiment, the first RS resource includes one or more ports.

[0461] As an embodiment, the first RS resource includes RS.

[0462] As an embodiment, the first RS resource includes an RS (Reference Signal) transmitted in the first RS resource.

[0463] As an embodiment, the second RS resource includes one or more ports.

[0464] As an embodiment, the second RS resource includes RS.

[0465] As an embodiment, the second RS resource includes an RS transmitted in the second RS resource.

[0466] As an embodiment, the port includes an antenna port.

[0467] As an embodiment, the port is an antenna port.

[0468] As an embodiment, the first RS resource is a CSI-RS (Channel State Information-Reference Signal) resource; the first port is a CSI-RS port of the first RS resource, or the first port is any CSI-RS port of the first RS resource.

[0469] As an embodiment, the first RS resource is an NZP (non-zero-power) CSI-RS resource; the first port is a CSI-RS port of the first RS resource, or the first port is any CSI-RS port of the first RS resource.

[0470] As an embodiment, the first RS resource is identified by an NZP-CSI-RS-ResourceId; the first port is a CSI-RS port of the first RS resource, or the first port is any CSI-RS port of the first RS resource.

[0471] As an embodiment, the first RS resource is configured by an NZP-CSI-RS-Resource IE (Information Element); the first port is a CSI-RS port of the first RS resource, or the first port is any CSI-RS port of the first RS resource.

[0472] As an embodiment, the first RS resource is a CSI-RS resource set, and the CSI-RS resource set includes one or more CSI-RS resources; the first port is a CSI-RS port of a CSI-RS resource in the CSI-RS resource set, or the first port is any CSI-RS port of a CSI-RS resource in the CSI-RS resource set, or the first port is any CSI-RS port of any CSI-RS resource in the CSI-RS resource set.

[0473] As an embodiment, the first RS resource is an NZP CSI-RS resource set, and the NZP CSI-RS resource set includes one or more NZP CSI-RS resources; the first port is a CSI-RS port of an NZP CSI-RS resource in the NZP CSI-RS resource set, or the first port is any CSI-RS port of an NZP CSI-RS resource in the NZP CSI-RS resource set, or the first port is any CSI-RS port of any NZP CSI-RS resource in the NZP CSI-RS resource set.

[0474] As an embodiment, the first RS resource is identified by an NZP-CSI-RS-ResourceSetId.

[0475] As an embodiment, the first RS resource is configured by an NZP-CSI-RS-ResourceSet IE.

[0476] As an embodiment, the first RS resource is an SS / PBCH (synchronization signal / physical broadcast channel) block resource.

[0477] As an embodiment, the first RS resource is identified by an SSB-Index.

[0478] As an embodiment, the first RS resource is a CSI-SSB resource set, and the CSI-SSB resource set includes one or more SS / PBCH block resources.

[0479] As an embodiment, the first RS resource is identified by a CSI-SSB-ResourceSetId.

[0480] As an embodiment, the first RS resource is configured by a CSI-SSB-ResourceSet IE.

[0481] As an embodiment, the second port is an antenna port of the second RS resource.

[0482] As an embodiment, the second port is any antenna port of the second RS resource.

[0483] As an embodiment, the second port is the only antenna port of the second RS resource.

[0484] As an embodiment, the second RS resource does not include other ports except the second port.

[0485] As an embodiment, in addition to the second port, the second RS resource includes at least one other port.

[0486] As an embodiment, the second RS resource includes one or more ports.

[0487] As an embodiment, the second RS resource includes RS.

[0488] As an embodiment, the second RS resource includes an RS (Reference Signal) transmitted in the second RS resource.

[0489] As an embodiment, the second RS resource includes one or more ports.

[0490] As an embodiment, the second RS resource includes RS.

[0491] As an embodiment, the second RS resource includes an RS transmitted in the second RS resource.

[0492] As an embodiment, the port includes an antenna port.

[0493] As an embodiment, the port is an antenna port.

[0494] As an embodiment, the second RS resource is a CSI-RS (Channel State Information-Reference Signal) resource; the second port is a CSI-RS port of the second RS resource, or the second port is any CSI-RS port of the second RS resource.

[0495] As an embodiment, the second RS resource is an NZP (non-zero-power) CSI-RS resource; the second port is a CSI-RS port of the second RS resource, or the second port is any CSI-RS port of the second RS resource.

[0496] As an embodiment, the second RS resource is identified by an NZP-CSI-RS-ResourceId; the second port is a CSI-RS port of the second RS resource, or the second port is any CSI-RS port of the second RS resource.

[0497] As an embodiment, the second RS resource is configured by an NZP-CSI-RS-Resource IE (Information Element); the second port is a CSI-RS port of the second RS resource, or the second port is any CSI-RS port of the second RS resource.

[0498] As an embodiment, the second RS resource is a CSI-RS resource set, and the CSI-RS resource set includes one or more CSI-RS resources; the second port is a CSI-RS port of a CSI-RS resource in the CSI-RS resource set, or the second port is any CSI-RS port of a CSI-RS resource in the CSI-RS resource set, or the second port is any CSI-RS port of any CSI-RS resource in the CSI-RS resource set.

[0499] As an embodiment, the second RS resource is an NZP CSI-RS resource set, and the NZP CSI-RS resource set includes one or more NZP CSI-RS resources; the second port is a CSI-RS port of an NZP CSI-RS resource in the NZP CSI-RS resource set, or the second port is any CSI-RS port of an NZP CSI-RS resource in the NZP CSI-RS resource set, or the second port is any CSI-RS port of any NZP CSI-RS resource in the NZP CSI-RS resource set.

[0500] As an embodiment, the second RS resource is identified by an NZP-CSI-RS-ResourceSetId.

[0501] As an embodiment, the second RS resource is configured by an NZP-CSI-RS-ResourceSet IE.

[0502] As an embodiment, the second RS resource is an SS / PBCH block resource.

[0503] As an embodiment, the second RS resource is identified by an SSB-Index.

[0504] As an embodiment, the second RS resource is a CSI-SSB resource set, and the CSI-SSB resource set includes one or more SS / PBCH block resources.

[0505] As an embodiment, the second RS resource is identified by a CSI-SSB-ResourceSetId.

[0506] As an embodiment, the second RS resource is configured by a CSI-SSB-ResourceSet IE.

[0507] As an embodiment, the first RS resource and the second RS resource are configured in the same cell.

[0508] As an embodiment, the first RS resource and the second RS resource are configured in different cells.

[0509] As an embodiment, the first RS resource and the second RS resource are configured in the same BWP (Bandwidth part) of the same cell.

[0510] As an embodiment, the first RS resource and the second RS resource are different CSI-RS resources in the same CSI-RS resource set.

[0511] As an embodiment, the first RS resource and the second RS resource are respectively identified by two different NZP-CSI-RS-ResourceIds.

[0512] As an embodiment, the first RS resource and the second RS resource are two different CSI-RS resource sets.

[0513] As an embodiment, the first RS resource and the second RS resource are respectively identified by two different NZP-CSI-RS-ResourceSetIds.

[0514] As an embodiment, one of the first RS resource and the second RS resource includes an SS / PBCH block resource, and the other includes a CSI-RS resource.

[0515] As an embodiment, the first RS resource includes a CSI-RS resource, and the second RS resource includes an SS / PBCH block resource.

[0516] As an embodiment, the first RS resource is a CSI-RS resource, and the second RS resource is an SS / PBCH block resource.

[0517] As an embodiment, the first RS resource includes an NZP CSI-RS resource, and the second RS resource includes an SS / PBCH block resource.

[0518] As an embodiment, the first RS resource is an NZP CSI-RS resource, and the second RS resource is an SS / PBCH block resource.

[0519] As an embodiment, the first RS resource and the second RS resource have the same time domain behavior.

[0520] As an embodiment, the candidates for the time domain behavior include periodic, semi-persistent, and aperiodic.

[0521] As an embodiment, the first RS resource and the second RS resource are configured with the same starting RB (Resource block) and number of RBs.

[0522] As an embodiment, the first RS resource and the second RS resource are configured with the same higher layer parameter cdm-type.

[0523] As an embodiment, the benefits of the above method include: better backward compatibility and minor changes to the standard.

[0524] As an embodiment, the first RS resource and the second RS resource have different time domain behaviors.

[0525] As an embodiment, the first RS resource and the second RS resource are configured with different starting RBs or different numbers of RBs.

[0526] As an embodiment, the first RS resource and the second RS resource are configured with different higher layer parameters cdm-type.

[0527] As an embodiment, the benefits of the above method include: better forward compatibility and flexibility.

[0528] As an embodiment, the RB in the present application includes a PRB (Physical resource block).

[0529] As an embodiment, the RB in this application refers to PRB.

[0530] As an embodiment, the first port is a DMRS port, the third signal is a DMRS, and the first signal is a DMRS.

[0531] As an embodiment, the first port is a PDCCH DMRS port, the third signal is a PDCCH DMRS, the first signal is a PDCCH DMRS, and the third signal and the first signal occupy different PDCCH candidates.

[0532] As an embodiment, the first port is a PDCCH DMRS port, the third signal is a PDCCH DMRS, the first signal is a PDCCH DMRS, and the third signal and the first signal belong to different PDCCH monitoring occasions.

[0533] As an embodiment, the first port is a PDSCH DMRS port, and the third signal and the first signal are DMRSs of two PDSCHs respectively.

[0534] As an embodiment, the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and are signals transmitted on the first port.

[0535] As a sub-embodiment of the above embodiment, the transmission opportunity of the first RS resource to which the first signal belongs is later than the transmission opportunity of the first RS resource to which the third signal belongs.

[0536] As an embodiment, the first signal and the third signal are on the same cell.

[0537] As an embodiment, the first signal and the third signal are in the same BWP (Bandwidth part) of the same cell.

[0538] As an embodiment, the second port is a DMRS port, the fourth signal is a DMRS, and the second signal is a DMRS.

[0539] As an embodiment, the second port is a PDCCH DMRS port, the fourth signal is a PDCCH DMRS, the second signal is a PDCCH DMRS, and the fourth signal and the second signal occupy different PDCCH candidates.

[0540] As an embodiment, the second port is a PDCCH DMRS port, the fourth signal is a PDCCH DMRS, the second signal is a PDCCH DMRS, and the fourth signal and the second signal belong to different PDCCH monitoring occasions.

[0541] As an embodiment, the second port is a PDSCH DMRS port, and the fourth signal and the second signal are DMRSs of two PDSCHs respectively.

[0542] As an embodiment, the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and are signals transmitted on the second port.

[0543] As a sub-embodiment of the above embodiment, the transmission opportunity of the second RS resource to which the second signal belongs is later than the transmission opportunity of the second RS resource to which the fourth signal belongs.

[0544] As an embodiment, the second signal and the fourth signal are on the same cell.

[0545] As an embodiment, the second signal and the fourth signal are in the same BWP (Bandwidth part) of the same cell.

[0546] Example 9

[0547] Example 9 illustrates a schematic diagram of the relationship between the first condition and the first resource set according to an embodiment of the present application; as shown in Figure 9.

[0548] In embodiment 9, the first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set.

[0549] As an embodiment, the first resource set consists of time domain resources, and the resources occupied by the second signal are time domain resources.

[0550] As an embodiment, the first resource set consists of at least one symbol, and the resources occupied by the second signal include at least one symbol.

[0551] As an embodiment, the first resource set consists of at least one time slot, and the resources occupied by the second signal include at least one symbol.

[0552] As an embodiment, the first resource set consists of at least one subframe, and the resources occupied by the second signal include at least one symbol.

[0553] As an embodiment, the first resource set consists of a continuous time period, and the resources occupied by the second signal include at least one symbol.

[0554] As an embodiment, the first resource set appears multiple times in the time domain, and the resources occupied by the second signal include at least one symbol.

[0555] As an embodiment, the first resource set consists of time domain resources that appear periodically, and the resources occupied by the second signal include at least one symbol.

[0556] As an embodiment, the symbol is a single carrier symbol.

[0557] As an embodiment, the symbol is a multi-carrier symbol.

[0558] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0559] As an embodiment, the symbol is obtained by performing OFDM symbol generation on the output of a transform precoding.

[0560] As an embodiment, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0561] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0562] As an embodiment, the multi-carrier symbol is a FBMC (FilterBank Multi Carrier) symbol.

[0563] As an embodiment, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0564] As an embodiment, the first resource set consists of frequency domain resources, and the resources occupied by the second signal are time domain resources.

[0565] As an embodiment, the first resource set consists of at least one RB, and the resources occupied by the second signal include at least one subcarrier or at least one RB.

[0566] As an embodiment, the first resource set consists of at least one subcarrier, and the resources occupied by the second signal include at least one subcarrier.

[0567] As an embodiment, the first resource set consists of one or more consecutive RBs, and the resources occupied by the second signal include at least one subcarrier or at least one RB.

[0568] As an embodiment, the first resource set consists of multiple discontinuous RBs, and the resources occupied by the second signal include at least one subcarrier or at least one RB.

[0569] As an embodiment, the first resource set consists of time-frequency resources, and the resources occupied by the second signal are time-frequency resources.

[0570] As an embodiment, the first resource set consists of at least one RE (Resource Element), and the resources occupied by the second signal include at least one RE.

[0571] As an embodiment, the first resource set consists of multiple REs, and the resources occupied by the second signal include at least one RE.

[0572] As an embodiment, the first resource set consists of one or more REs, the first resource set includes at least one symbol in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0573] As an embodiment, the first resource set consists of one or more REs, the first resource set includes at least one time slot in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0574] As an embodiment, the first resource set consists of one or more REs, the first resource set includes at least one subframe in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0575] As an embodiment, the first resource set consists of one or more REs, and the first resource set is a continuous time period in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0576] As an embodiment, the first resource set consists of one or more REs, and the first resource set appears multiple times in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0577] As an embodiment, the first resource set consists of one or more REs, and the first resource set appears periodically in the time domain; the first resource set includes at least one RB in the frequency domain, or the first resource set includes one or more subcarriers in the frequency domain.

[0578] As an embodiment, the first resource set includes at least one RB in the frequency domain, including: the first resource set includes one or more RBs in the frequency domain.

[0579] As an embodiment, the first resource set includes at least one RB in the frequency domain, including: the first resource set includes one or more consecutive RBs in the frequency domain.

[0580] As an embodiment, the first resource set includes at least one RB in the frequency domain, including: the first resource set includes one or more discontinuous RBs in the frequency domain.

[0581] As an embodiment, the first condition also includes that the second signal occupies resources in the first resource set.

[0582] As an embodiment, the first signal occupies resources in the first resource set, and the first condition includes that the second signal occupies resources in the first resource set.

[0583] As an embodiment, the first condition includes multiple sub-conditions; one of the multiple sub-conditions includes: the second signal occupies resources in the first resource set.

[0584] As a sub-embodiment of the above embodiment, when the multiple sub-conditions are all satisfied, the first condition is satisfied; when one of the multiple sub-conditions is not satisfied, the first condition is not satisfied.

[0585] As a sub-embodiment of the above embodiment, when one of the multiple sub-conditions is satisfied, the first condition is satisfied; when none of the multiple sub-conditions are satisfied, the first condition is not satisfied.

[0586] As an embodiment, the first condition also includes that the resources occupied by the second signal are orthogonal to the first resource set.

[0587] As an embodiment, the resources occupied by the first signal are orthogonal to the first resource set, and the first condition includes that the resources occupied by the second signal are orthogonal to the first resource set.

[0588] As an embodiment, the first condition includes multiple sub-conditions; one of the multiple sub-conditions includes: the resources occupied by the second signal are orthogonal to the first resource set.

[0589] As a sub-embodiment of the above embodiment, when the multiple sub-conditions are all satisfied, the first condition is satisfied; when one of the multiple sub-conditions is not satisfied, the first condition is not satisfied.

[0590] As a sub-embodiment of the above embodiment, when one of the multiple sub-conditions is satisfied, the first condition is satisfied; when none of the multiple sub-conditions are satisfied, the first condition is not satisfied.

[0591] As an embodiment, the first resource set consists of time domain resources; the resources occupied by the first signal and the first resource set are orthogonal, including: the resources occupied by the first signal are the time domain resources occupied by the first signal, and the time domain resources occupied by the first signal are orthogonal to the time domain resources included in the first resource set; the resources occupied by the second signal and the first resource set are orthogonal, including: the resources occupied by the second signal are the time domain resources occupied by the second signal, and the time domain resources occupied by the second signal are orthogonal to the time domain resources included in the first resource set.

[0592] As an embodiment, the first resource set consists of frequency domain resources; the resources occupied by the first signal and the first resource set are orthogonal, including: the resources occupied by the first signal are the frequency domain resources occupied by the first signal, and the frequency domain resources occupied by the first signal are orthogonal to the frequency domain resources included in the first resource set; the resources occupied by the second signal and the first resource set are orthogonal, including: the resources occupied by the second signal are the frequency domain resources occupied by the second signal, and the frequency domain resources occupied by the second signal are orthogonal to the frequency domain resources included in the first resource set.

[0593] As an embodiment, the first resource set consists of time-frequency resources; the resources occupied by the first signal and the first resource set are orthogonal, including: the resources occupied by the first signal are the time-frequency resources occupied by the first signal, and the time-frequency resources occupied by the first signal are orthogonal to the time-frequency resources included in the first resource set; the resources occupied by the second signal and the first resource set are orthogonal, including: the resources occupied by the second signal are the time-frequency resources occupied by the second signal, and the time-frequency resources occupied by the second signal are orthogonal to the time-frequency resources included in the first resource set.

[0594] As an embodiment, the first resource set consists of time-frequency resources; the resources occupied by the first signal and the first resource set are orthogonal, including: the resources occupied by the first signal are the time domain resources occupied by the first signal, and the time domain resources occupied by the first signal are orthogonal to the time domain resources included in the first resource set; the resources occupied by the second signal and the first resource set are orthogonal, including: the resources occupied by the second signal are the time domain resources occupied by the second signal, and the time domain resources occupied by the second signal are orthogonal to the time domain resources included in the first resource set.

[0595] Typically, the time domain resources occupied by the first signal and the time domain resources included in the first resource set are orthogonal, including: the time domain resources occupied by the first signal and the time domain resources included in the first resource set do not overlap; the time domain resources occupied by the second signal and the time domain resources included in the first resource set are orthogonal, including: the time domain resources occupied by the second signal and the time domain resources included in the first resource set do not overlap.

[0596] Typically, the time domain resources occupied by the first signal and the time domain resources included in the first resource set are orthogonal, including: the first signal does not include the time domain resources in the first resource set in the time domain; the time domain resources occupied by the second signal and the time domain resources included in the first resource set are orthogonal, including: the second signal does not include the time domain resources in the first resource set in the time domain.

[0597] Typically, the frequency domain resources occupied by the first signal and the frequency domain resources included in the first resource set are orthogonal, including: the frequency domain resources occupied by the first signal and the frequency domain resources included in the first resource set do not overlap; the frequency domain resources occupied by the second signal and the frequency domain resources included in the first resource set are orthogonal, including: the frequency domain resources occupied by the second signal and the frequency domain resources included in the first resource set do not overlap.

[0598] Typically, the frequency domain resources occupied by the first signal and the frequency domain resources included in the first resource set are orthogonal, including: the first signal does not include the frequency domain resources in the first resource set in the frequency domain; the frequency domain resources occupied by the second signal and the frequency domain resources included in the first resource set are orthogonal, including: the second signal does not include the frequency domain resources in the first resource set in the frequency domain.

[0599] Typically, the time-frequency resources occupied by the first signal and the time-frequency resources included in the first resource set are orthogonal, including: the time-frequency resources occupied by the first signal and the time-frequency resources included in the first resource set do not overlap; the time-frequency resources occupied by the second signal and the time-frequency resources included in the first resource set are orthogonal, including: the time-frequency resources occupied by the second signal and the time-frequency resources included in the first resource set do not overlap.

[0600] Typically, the time-frequency resources occupied by the first signal and the time-frequency resources included in the first resource set are orthogonal, including: the first signal does not occupy the time-frequency resources included in the first resource set; the time-frequency resources occupied by the second signal and the time-frequency resources included in the first resource set are orthogonal, including: the second signal does not occupy the time-frequency resources included in the first resource set.

[0601] As an embodiment, the method in the first node includes:

[0602] receiving a fourth information block;

[0603] The fourth information block is used to determine the first resource set.

[0604] As an embodiment, the first receiver receives a fourth information block;

[0605] The fourth information block is used to determine the first resource set.

[0606] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block indicates the first resource set.

[0607] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block explicitly indicates the first resource set.

[0608] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block implicitly indicates the first resource set.

[0609] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block directly indicates the first resource set.

[0610] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block indirectly indicates the first resource set.

[0611] As an embodiment, the fourth information block is used to determine that the first resource set includes: the first resource set is composed of time-frequency resources, and the fourth information block indicates the time domain resources occupied by the first resource set and the frequency domain resources occupied by the first resource set.

[0612] As an embodiment, the fourth information block is used to determine the first resource set, including: the fourth information block indicates the size of the first resource set.

[0613] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the time length of the first resource set in the time domain.

[0614] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the number of symbols included in the first resource set in the time domain.

[0615] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the number of time slots included in the first resource set in the time domain.

[0616] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the number of subframes included in the first resource set in the time domain.

[0617] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the number of subcarriers included in the first resource set in the frequency domain.

[0618] As a sub-embodiment of the above embodiment, the size of the first resource set includes: the number of RBs included in the first resource set in the frequency domain.

[0619] As an embodiment, the fourth information block is configured by the base station to the first node.

[0620] As an embodiment, the fourth information block is configured by higher layer signaling.

[0621] As an embodiment, the fourth information block is configured by RRC signaling.

[0622] As an embodiment, the fourth information block is configured by MAC CE.

[0623] As an embodiment, the fourth information block is indicated by layer 1 signaling.

[0624] As an embodiment, the fourth information block belongs to DCI.

[0625] As an embodiment, the fourth information block is transmitted in a PDSCH (Physical downlink shared channel).

[0626] As an embodiment, the fourth information block is transmitted in a PDCCH (Physical Downlink Control Channel).

[0627] As an embodiment, the first resource set is configured for a serving cell.

[0628] As an embodiment, the first resource set is configured to a BWP (Bandwidth part).

[0629] Example 10

[0630] Embodiment 10 illustrates a schematic diagram of the relationship between the first condition and the first resource set according to another embodiment of the present application; as shown in FIG10 .

[0631] In embodiment 10, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0632] As an embodiment, the first condition includes: the second signal occupies resources in a first resource set, and the first signal occupies resources in the first resource set.

[0633] As an embodiment, the first resource set depends on the time domain resources occupied by the first signal; the first condition includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0634] As an embodiment, the first resource set depends on the frequency domain resources occupied by the first signal; the first condition includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0635] As an embodiment, the first resource set depends on the time-frequency resources occupied by the first signal; the first condition includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0636] As an embodiment, the first condition includes multiple sub-conditions; one sub-condition among the multiple sub-conditions includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0637] As a sub-embodiment of the above embodiment, when the multiple sub-conditions are all satisfied, the first condition is satisfied; when one of the multiple sub-conditions is not satisfied, the first condition is not satisfied.

[0638] As a sub-embodiment of the above embodiment, when one of the multiple sub-conditions is satisfied, the first condition is satisfied; when none of the multiple sub-conditions are satisfied, the first condition is not satisfied.

[0639] As an embodiment, the first condition includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0640] As an embodiment, the first condition includes multiple sub-conditions; one sub-condition among the multiple sub-conditions includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0641] As a sub-embodiment of the above embodiment, when the multiple sub-conditions are all satisfied, the first condition is satisfied; when one of the multiple sub-conditions is not satisfied, the first condition is not satisfied.

[0642] As a sub-embodiment of the above embodiment, when one of the multiple sub-conditions is satisfied, the first condition is satisfied; when none of the multiple sub-conditions are satisfied, the first condition is not satisfied.

[0643] As an embodiment, the first condition includes a first sub-condition and a second sub-condition; when one of the first sub-condition or the second sub-condition is met, the first condition is met; the first sub-condition includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; the second sub-condition includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0644] As an embodiment, when both the first sub-condition and the second sub-condition are not satisfied, the first condition is not satisfied.

[0645] As an embodiment, the first condition includes multiple sub-conditions, and the first sub-condition and the second sub-condition are two sub-conditions among the multiple sub-conditions; when one sub-condition among the multiple sub-conditions is met, the first condition is met; when none of the multiple sub-conditions are met, the first condition is not met.

[0646] Example 11

[0647] Embodiment 11 illustrates a schematic diagram of a first characteristic subset according to an embodiment of the present application; as shown in FIG11 .

[0648] In embodiment 11, only when the first condition is satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0649] As an embodiment, only when the first condition is satisfied, the first node considers that the characteristics of the channel transmitting the first signal, which belong to the first characteristic subset, can be inferred from the channel transmitting the second signal.

[0650] As an embodiment, only when the first condition is satisfied, the first node assumes that the characteristics of the channel transmitting the first signal belonging to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0651] As an embodiment, when the first condition is not satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset cannot be inferred from the channel transmitting the second signal.

[0652] As an embodiment, the characteristics belonging to the first characteristic subset include: delay spread, Doppler spread, Doppler shift, average delay, average gain and characteristics belonging to the first characteristic subset in spatial reception parameters.

[0653] As an embodiment, the characteristics of the channel transmitting the first signal that belong only to the first subset of characteristics can be inferred from the channel transmitting the second signal.

[0654] As an embodiment, the large-scale characteristics of the channel transmitting the first signal that do not belong to the first characteristic subset cannot be inferred from the channel transmitting the second signal.

[0655] As an embodiment, the characteristics of the delay spread, Doppler spread, Doppler shift, average delay, average gain and spatial reception parameters of the channel transmitting the first signal that do not belong to the first characteristic subset cannot be inferred from the channel transmitting the second signal.

[0656] As an embodiment, the first feature subset is configured by higher layer signaling.

[0657] As an embodiment, the first feature subset is configured by RRC (Radio Resource Control) IE.

[0658] As an embodiment, the first feature subset is configured by MAC CE (Medium Access Control layer Control Element).

[0659] As an embodiment, the first feature subset is indicated by DCI (Downlink control information).

[0660] As an embodiment, the first characteristic subset is configured by the second information block.

[0661] As an embodiment, the first characteristic subset is configured by the third information block.

[0662] As an embodiment, the benefits of the above method include: the network uniformly configures the first feature subset, which facilitates global optimization.

[0663] As an embodiment, the first characteristic subset includes at least one characteristic, and any one characteristic in the first characteristic subset is one of delay spread, Doppler spread, Doppler shift, average delay, average gain or spatial reception parameter.

[0664] As an embodiment, the first characteristic subset includes at least one characteristic, and any one of the characteristics in the first characteristic subset is one of delay spread, Doppler spread, Doppler shift, average delay, average gain, spatial transmission parameter, or spatial reception parameter.

[0665] As an embodiment, the first characteristic subset includes one or more of delay spread, Doppler spread, Doppler shift, average delay, average gain or spatial reception parameters.

[0666] As an embodiment, the first characteristic subset includes one or more of delay spread, Doppler spread, Doppler shift, average delay, average gain, spatial transmission parameters, or spatial reception parameters.

[0667] As an embodiment, the first characteristic subset includes at least one characteristic, and any characteristic in the first characteristic subset is a large-scale characteristic.

[0668] As an embodiment, the first characteristic subset includes at least one of typeA, typeB, typeC, or typeD.

[0669] As an embodiment, the type A includes delay spread, Doppler spread, Doppler shift and average delay.

[0670] As an embodiment, the type B includes Doppler expansion and Doppler shift.

[0671] As an embodiment, the type C includes Doppler shift and average delay.

[0672] As an embodiment, the typeD includes spatial reception parameters.

[0673] As an embodiment, for the specific definitions of typeA, typeB, typeC, and typeD, please refer to Section 5.1.5 of 3GPP TS 38.214.

[0674] As an embodiment, the first information block indicates the first characteristic subset.

[0675] As an embodiment, the first information block indicating the first characteristic subset includes: the first information block indicating the QCL type corresponding to the first port and the second port.

[0676] As an embodiment, the first information block indicating the first characteristic subset includes: the first information block indicating the QCL type corresponding to the first RS resource and the second RS resource.

[0677] As an embodiment, the first information block indicates that the large-scale characteristics of the channel experienced by the RS transmitted in the first RS resource can be inferred from the channel experienced by the RS transmitted in the second RS resource.

[0678] As an embodiment, the first information block indicates that the characteristics belonging to the first characteristic subset of the channel experienced by the RS transmitted in the first RS resource can be inferred from the channel experienced by the RS transmitted in the second RS resource.

[0679] As an embodiment, the first information block indicates the first characteristic subset and indicates that the characteristics belonging to the first characteristic subset of the channel experienced by the RS transmitted in the first RS resource can be inferred from the channel experienced by the RS transmitted in the second RS resource.

[0680] As an embodiment, the first information block indicates that large-scale characteristics of a channel for transmitting the first signal can be inferred from a channel for transmitting the second signal.

[0681] As an embodiment, the first information block indicates that the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0682] As an embodiment, the first information block indicates the first characteristic subset and indicates that the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0683] As an embodiment, the first characteristic subset is one of a plurality of candidate characteristic subsets.

[0684] As an embodiment, the first information block indicates the first characteristic subset from the multiple candidate characteristic subsets, and the multiple characteristic subsets include typeA, typeB, typeC, or typeD.

[0685] As an embodiment, the first information block indicates the first characteristic subset from the multiple candidate characteristic subsets, and the multiple characteristic subsets include at least one characteristic subset other than typeA, typeB, typeC, and typeD.

[0686] As an embodiment, the first information block includes a second information sub-block, and the second information sub-block indicates the first characteristic subset.

[0687] As an embodiment, the multiple candidate characteristic subsets correspond to multiple candidate values ​​respectively, each of the multiple candidate values ​​is a candidate for the value of the second information sub-block, and the first characteristic subset is a candidate characteristic subset corresponding to the value of the second information sub-block.

[0688] As an embodiment, the plurality of candidate characteristic subsets are configurable.

[0689] As an embodiment, the multiple candidate characteristic subsets are configured by a base station to the first node.

[0690] As an embodiment, the multiple candidate characteristic subsets are configured by RRC IE.

[0691] As an embodiment, the multiple candidate characteristic subsets are configured by MAC CE.

[0692] As an embodiment, the plurality of candidate characteristic subsets are indicated by DCI.

[0693] As an embodiment, the plurality of candidate characteristic subsets do not need to be configured.

[0694] As an embodiment, the plurality of candidate characteristic subsets are fixed.

[0695] As an embodiment, the plurality of candidate characteristic subsets are default.

[0696] As an embodiment, the first characteristic subset is determined by the first node itself.

[0697] As an embodiment, the benefits of the above method include: the UE selects the first feature subset on its own, thereby improving reporting efficiency and reducing delay.

[0698] As an embodiment, the first characteristic subset is determined by the first node itself based on measurements of the first RS resource and the second RS resource.

[0699] Generally speaking, how the first node determines the first feature subset is determined by the equipment manufacturer. Some non-limiting implementation methods are described below:

[0700] As an embodiment, the first node determines the first characteristic subset by estimating large-scale characteristics of a channel experienced by the RS transmitted in the first RS resource and estimating large-scale characteristics of a channel experienced by the RS transmitted in the second RS resource.

[0701] As an embodiment, the first node determines the first characteristic subset by measuring the reception quality of the RS transmitted in the first RS resource, and by measuring the reception quality of the RS transmitted in the second RS resource.

[0702] As an embodiment, the first node determines the first characteristic subset by performing channel estimation on the RS in the first RS resource and performing channel estimation on the RS in the second RS resource.

[0703] As an embodiment, the first node obtains channel information by measuring RS transmitted in the first RS resource and the second RS resource, and the channel information includes but is not limited to a channel parameter matrix H w , w=1,…,W, one or more of correlation, received power, RSRP or phase, and determining the first characteristic subset according to the channel information; wherein W is the number of subbands, the H w The dimension is R×T, where T and R are the number of transmitting antenna ports and the number of receiving antennas, respectively.

[0704] As an embodiment, the first node determines the first subset of characteristics by determining whether large-scale characteristics of a channel transmitting the third signal can be inferred from a channel transmitting the fourth signal.

[0705] As an embodiment, the first node determines the first subset of characteristics while determining whether the large-scale characteristics of the channel transmitting the third signal can be inferred from the channel transmitting the fourth signal.

[0706] Example 12

[0707] Embodiment 12 illustrates a schematic diagram of a second information block according to an embodiment of the present application; as shown in FIG12 .

[0708] In embodiment 12, the first receiver receives a second information block; wherein the second information block indicates the first port; or, the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0709] As an embodiment, the second information block indicates the first port.

[0710] As an embodiment, the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0711] As an embodiment, the second information block is carried by higher layer signaling.

[0712] As an embodiment, the second information block is carried by RRC signaling.

[0713] As an embodiment, the second information block is carried by RRC IE.

[0714] As an embodiment, the second information block includes all or part of the information in a field in an RRC IE.

[0715] As an embodiment, the second information block includes information in all or part of the fields in each RRC IE in multiple RRC IEs.

[0716] As an embodiment, the second information block is carried by MAC CE.

[0717] As an embodiment, the second information block is carried by DCI.

[0718] As an embodiment, the first port is a DMRS port, the second information block is the Antennaports field in the DCI, and the second information block indicates the first port.

[0719] As an embodiment, the first port is a PDSCH DMRS port, the second information block is the Antennaports field in the DCI, and the second information block indicates the first port.

[0720] As an embodiment, the first port is a port of the first RS resource; the second information block indicates that the first RS resource includes: the second information block includes a CSI request field in the DCI, and the CSI request field in the DCI included in the second information block indicates the first RS resource.

[0721] As an embodiment, the first port is a port of a first RS resource; the second information block indicates that the first RS resource includes: the second information block includes a CSI request field in the DCI, the CSI request field in the DCI included in the second information block indicates a CSI trigger state, and the first RS resource is associated with the one CSI trigger state.

[0722] As a sub-embodiment of the above embodiment, the first RS resource is associated with the one CSI triggering state, including: the one CSI triggering state indicates a first CSI reporting configuration and the first RS resource, and the first RS resource is used for channel measurement of CSI based on the first CSI reporting configuration.

[0723] As a sub-embodiment of the above embodiment, the first RS resource is associated with the CSI trigger state, including: the CSI trigger state includes a CSI-AssociatedReportConfigInfo, the CSI-AssociatedReportConfigInfo indicates a first CSI reporting configuration and the first RS resource, and the first RS resource is used for channel measurement of the CSI based on the first CSI reporting configuration.

[0724] As a sub-embodiment of the above embodiment, the first RS resource being associated with the one CSI triggering state includes: the one CSI triggering state includes a CSI-AssociatedReportConfigInfo, and the one CSI-AssociatedReportConfigInfo indicates the first RS resource.

[0725] As a sub-embodiment of the above embodiment, the first RS resource is associated with the CSI triggering state, including: the CSI triggering state includes a CSI-AssociatedReportConfigInfo, and the CSI-AssociatedReportConfigInfo indicates an RS resource set including the first RS resource.

[0726] As a sub-embodiment of the above embodiment, the first RS resource is associated with the CSI trigger state, including: the CSI trigger state includes a CSI-AssociatedReportConfigInfo, and the higher-layer parameter resourcesForChannel in the CSI-AssociatedReportConfigInfo indicates an RS resource set including the first RS resource.

[0727] As an embodiment, the second information block indicating the first RS resource includes: the second information block includes a CSI-AssociatedReportConfigInfo, and the CSI-AssociatedReportConfigInfo included in the second information block indicates the first RS resource.

[0728] As an embodiment, the second information block indicates that the first RS resource includes: the second information block includes a CSI-AssociatedReportConfigInfo, and the CSI-AssociatedReportConfigInfo included in the second information block indicates an RS resource set including the first RS resource.

[0729] As an embodiment, the first port is a port of the first RS resource; the second information block indicates that the first RS resource includes: the second information block includes a CSI request field in the DCI, the CSI request field in the DCI included in the second information block indicates a CSI trigger state, and the first RS resource is associated with the one CSI trigger state; the one CSI trigger state indicates the second RS resource, and the second port is a port of the second RS resource.

[0730] As a sub-embodiment of the above embodiment, the one CSI triggering state indicating the second RS resource includes: the one CSI triggering state indicating QCL information of the first RS resource, and the QCL information of the first RS resource indicating the second RS resource.

[0731] As a sub-embodiment of the above embodiment, the CSI triggering state indicating the second RS resource includes: the CSI triggering state indicating the QCL information of the first RS resource, the QCL information of the first RS resource includes a TCI state, and the TCI state indicates the second RS resource.

[0732] As a sub-embodiment of the above embodiment, the CSI triggering state indicating the second RS resource includes: the CSI triggering state includes a CSI-AssociatedReportConfigInfo, and a higher layer parameter whose name includes qcl in the CSI-AssociatedReportConfigInfo indicates the second RS resource.

[0733] As a sub-embodiment of the above embodiment, the CSI triggering state indicating the second RS resource includes: the CSI triggering state includes a CSI-AssociatedReportConfigInfo, a higher-layer parameter whose name includes qcl in the CSI-AssociatedReportConfigInfo indicates the QCL information of the first RS resource, the QCL information of the first RS resource includes a TCI state, and the TCI state indicates the second RS resource.

[0734] As a sub-embodiment of the above embodiment, the CSI trigger state indicating the second RS resource includes: the CSI trigger state includes a CSI-AssociatedReportConfigInfo, a higher-layer parameter whose name includes qcl in the CSI-AssociatedReportConfigInfo indicates the QCL information of the first RS resource, and the QCL information of the first RS resource indicates the second RS resource.

[0735] As an embodiment, the second information block is carried jointly by RRC signaling and MAC CE.

[0736] As an embodiment, the second information block is carried jointly by higher layer signaling and DCI.

[0737] As an embodiment, the second information block includes the CSI request field and CSI-AperiodicTriggerStateList IE in the DCI.

[0738] As an embodiment, the second information block is user-specific (UE-specific).

[0739] As an embodiment, the second information block includes information in all or part of the fields in the NZP-CSI-RS-Resource IE.

[0740] As an embodiment, the second information block is carried by NZP-CSI-RS-Resource IE.

[0741] As an embodiment, the second information block includes information in all or part of the fields in the NZP-CSI-RS-ResourceSet IE.

[0742] As an embodiment, the second information block is carried by NZP-CSI-RS-ResourceSet IE.

[0743] As an embodiment, the second information block includes information in all or part of the fields in the CSI-SSB-ResourceSet IE.

[0744] As an embodiment, the second information block is carried by CSI-SSB-ResourceSet IE.

[0745] As an embodiment, the second information block includes information in all or part of the fields in the CSI-ResourceConfig IE.

[0746] As an embodiment, the second information block is carried by CSI-ResourceConfig IE.

[0747] As an embodiment, the second information block includes information in all or part of the fields in the CSI-ReportConfig IE.

[0748] As an embodiment, the second information block is carried by CSI-ReportConfig IE.

[0749] As an embodiment, the second information block includes information in all or part of the fields in the CSI-MeasConfig IE.

[0750] As an embodiment, the second information block is carried by CSI-MeasConfig IE.

[0751] As an embodiment, the second information block includes information in all or part of the fields in the CSI-AperiodicTriggerStateList IE.

[0752] As an embodiment, the second information block is carried by CSI-AperiodicTriggerStateList IE.

[0753] As an embodiment, the second information block indicates that the first RS resource includes: the second information block includes configuration information of the first RS resource.

[0754] As a sub-embodiment of the above embodiment, the configuration information includes one or more of frequency domain resources, time domain resources, number of ports, CDM type, density, quasi co-location relationship, TCI (Transmission Configuration Indicator) state, time domain behavior or BWP index.

[0755] As a sub-embodiment of the above embodiment, the configuration information includes: the resource set to which it belongs.

[0756] As a sub-embodiment of the above embodiment, the resource set includes a CSI-RS resource set.

[0757] As a sub-embodiment of the above embodiment, the resource set includes a CSI-SSB resource set.

[0758] As a sub-embodiment of the above embodiment, the configuration information includes: center frequency, subcarrier spacing, SFN (System frame number) offset, period, position in burst, SMTC (SS / PBCH block measurement timing configuration) or at least one of the measurement interval.

[0759] As an embodiment, the second information block indicating the first RS resource includes: the second information block indicating an RS resource set including the first RS resource.

[0760] As a sub-embodiment of the above embodiment, the second information block includes information in all or part of the fields in the CSI-ResourceConfig IE, and the part of the fields in the CSI-ResourceConfig IE included in the second information block indicates the one RS resource set.

[0761] As a sub-embodiment of the above embodiment, the one RS resource set includes a CSI-RS resource set.

[0762] As a sub-embodiment of the above embodiment, the one RS resource set includes an NZP CSI-RS resource set.

[0763] As a sub-embodiment of the above embodiment, the RS resource set includes a CSI-SSB resource set.

[0764] As an embodiment, the second information block includes a first CSI reporting configuration, and the first CSI reporting configuration is periodic.

[0765] As an embodiment, the second information block includes a first CSI reporting configuration, and the first CSI reporting configuration is semi-persistent.

[0766] As an embodiment, the second information block includes a first CSI reporting configuration, and the first CSI reporting configuration is aperiodic.

[0767] As an embodiment, the second information block indicating the first RS resource includes: the second information block includes a first CSI reporting configuration, the first CSI reporting configuration includes a first higher layer parameter, and the first higher layer parameter included in the first CSI reporting configuration indicates the first RS resource.

[0768] As a sub-embodiment of the above embodiment, the first CSI reporting configuration is periodic.

[0769] As a sub-embodiment of the above embodiment, the first CSI reporting configuration is semi-persistent.

[0770] As a sub-embodiment of the above embodiment, the first CSI reporting configuration is aperiodic.

[0771] As a sub-embodiment of the above embodiment, the first CSI reporting configuration is identified by a CSI-ReportConfigId.

[0772] As a sub-embodiment of the above embodiment, the name of the first higher-layer parameter includes ChannelMeasurement.

[0773] As a sub-embodiment of the above embodiment, the first higher-layer parameter is the higher-layer parameter resourcesForChannelMeasurement.

[0774] As a sub-embodiment of the above embodiment, the first higher-layer parameter included in the first CSI reporting configuration indicates an identifier of the first RS resource.

[0775] As a sub-embodiment of the above embodiment, the first CSI reporting configuration includes a first higher-layer parameter, and the first higher-layer parameter included in the first CSI reporting configuration indicates an RS resource set including the first RS resource.

[0776] As a sub-embodiment of the above embodiment, the first CSI reporting configuration includes a first higher-layer parameter, and the first higher-layer parameter included in the first CSI reporting configuration indicates the first RS resource by indicating an RS resource set to which the first RS resource belongs.

[0777] As a sub-embodiment of the above embodiment, the first CSI reporting configuration indication is used to obtain one or more RS resources for channel measurement.

[0778] As a sub-embodiment of the above embodiment, the first CSI reporting configuration indicates at least one CSI-RS resource and / or at least one CSI-IM (Channel State Information-Interference Measurement) resource used to obtain interference measurement.

[0779] Example 13

[0780] Example 13 illustrates a schematic diagram of a third information block according to an embodiment of the present application; as shown in Figure 13.

[0781] In embodiment 13, the first receiver receives a third information block; wherein the third information block indicates the second port; or, the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0782] As an embodiment, the third information block indicates the second port.

[0783] As an embodiment, the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0784] As an embodiment, the third information block further indicates that: when the first condition is satisfied, the large-scale characteristics of the channel through which the first signal is transmitted can be inferred from the channel through which the second signal is transmitted.

[0785] As an embodiment, the third information block further indicates the large-scale characteristics of the channel transmitting the first signal.

[0786] As an embodiment, the third information block also indicates the large-scale characteristics corresponding to the second RS resource, and the large-scale characteristics corresponding to the second RS resource are the large-scale characteristics of the channel transmitting the first signal that can be inferred from the channel transmitting the second signal when the first condition is met.

[0787] As an embodiment, the third information block further indicates the first characteristic subset.

[0788] As an embodiment, the third information block further indicates a characteristic in the first characteristic subset.

[0789] As an embodiment, the third information block further indicates one or more characteristics in the first characteristic subset.

[0790] As an embodiment, the third information block is carried by higher layer signaling.

[0791] As an embodiment, the third information block is carried by RRC signaling.

[0792] As an embodiment, the third information block is carried by RRC IE.

[0793] As an embodiment, the third information block includes all or part of the information in a field in an RRC IE.

[0794] As an embodiment, the third information block includes information in all or part of the fields in each RRC IE in multiple RRC IEs.

[0795] As an embodiment, the third information block is carried by MAC CE.

[0796] As an embodiment, the third information block is carried by DCI.

[0797] As an embodiment, the second port is a DMRS port, the third information block is the Antennaports field in the DCI, and the third information block indicates the second port.

[0798] As an embodiment, the second port is a PDSCH DMRS port, the third information block is the Antennaports field in the DCI, and the third information block indicates the second port.

[0799] As an embodiment, the third information block indicates the QCL information of the first RS resource, and the QCL information of the first RS resource indicates the second RS resource.

[0800] As an embodiment, the third information block indicates QCL information of the first RS resource, and the QCL information of the first RS resource indicates the second RS resource and a large-scale characteristic corresponding to the second RS resource.

[0801] As an embodiment, the third information block indicates that the first RS resource and the second RS resource are quasi-co-located.

[0802] As an embodiment, the third information block includes a higher layer parameter qcl-info.

[0803] As an embodiment, the third information block includes a higher layer parameter whose name includes qcl.

[0804] As an embodiment, the third information block includes a higher layer parameter whose name includes TCI.

[0805] As an embodiment, the third information block includes the Transmission Configuration Indication field in the DCI.

[0806] As an embodiment, the third information block includes part of the fields in the ControlResourceSet IE.

[0807] As an embodiment, the third information block includes a higher layer parameter qcl-InfoPeriodicCSI-RS.

[0808] As an embodiment, the third information block indicates a TCI state, and the TCI state indicates the second RS resource.

[0809] As an embodiment, the third information block indicates a TCI state, and the TCI state indicates the second RS resource and a large-scale characteristic corresponding to the second RS resource.

[0810] As an embodiment, the large-scale characteristic corresponding to the second RS resource is one of type A, type B, type C or type D.

[0811] As an embodiment, the large-scale characteristics corresponding to the second RS resource are different from typeA, typeB, typeC or typeD.

[0812] As an embodiment, the large-scale characteristics corresponding to the second RS resource belong to the first characteristic subset.

[0813] As an embodiment, the large-scale characteristic corresponding to the second RS resource is one or more of delay spread, Doppler spread, Doppler shift or average delay.

[0814] As an embodiment, the large-scale characteristic corresponding to the second RS resource is one or more of delay spread, Doppler spread, Doppler shift, average delay or spatial reception parameter.

[0815] As an embodiment, the large-scale characteristics corresponding to the second RS resource are one or more of delay spread, Doppler spread, Doppler shift, average delay, spatial transmission parameters, or spatial reception parameters.

[0816] As an embodiment, the large-scale characteristic corresponding to the second RS resource is a spatial reception parameter.

[0817] As an embodiment, the large-scale characteristic corresponding to the second RS resource is a spatial transmission parameter.

[0818] As an embodiment, the large-scale characteristics corresponding to the second RS resource are Doppler spread and Doppler shift.

[0819] As an embodiment, the large-scale characteristics corresponding to the second RS resource are Doppler shift and average delay.

[0820] As an embodiment, the third information block includes a Transmission Configuration Indication field in the DCI, the Transmission Configuration Indication field in the DCI included in the third information block indicates a TCI state, and the TCI state indicates the second RS resource.

[0821] As an embodiment, the third information block includes a Transmission Configuration Indication field in the DCI, the Transmission Configuration Indication field in the DCI included in the third information block indicates a TCI state, and the TCI state indicates the second RS resource and a large-scale characteristic corresponding to the second RS resource.

[0822] As an embodiment, the second information block and the third information block belong to the same DCI.

[0823] As an embodiment, the second information block and the third information block are carried by the same DCI.

[0824] As an embodiment, the second information block includes part of the fields in the DCI, and the third information block includes information in all or part of the fields (fielded) in an RRC IE.

[0825] As an embodiment, the second information block includes a portion of the fields in the DCI, and the third information block includes information in all or part of the fields in each of the multiple RRC IEs.

[0826] As an embodiment, the second information block and the third information block are both carried by higher layer signaling.

[0827] As an embodiment, the second information block and the third information block are both carried by RRC signaling.

[0828] As an embodiment, the second information block is carried by MAC CE signaling, and the third information block is carried by RRC signaling.

[0829] As an embodiment, the first port is a PDCCH DMRS port, and the first signal is a PDCCH DMRS; the third information block indicates a second RS resource, and the second port is a port of the second RS resource; the third information block includes a partial field in the ControlResourceSet IE, and the third information block indicates a TCI state, and the one TCI state indicates the second RS resource.

[0830] As an embodiment, the first port is a DMRS port, and the first signal is DMRS; the third information block indicates a second RS resource, and the second port is a port of the second RS resource; the third information block indicates the second RS resource including: the third information block includes a Transmission Configuration Indication field in the DCI, the Transmission Configuration Indication field in the DCI included in the third information block indicates a TCI state, and the one TCI state indicates the second RS resource.

[0831] As an embodiment, the first port is a PDSCH DMRS port, and the first signal is a PDSCH DMRS; the third information block indicates a second RS resource, and the second port is a port of the second RS resource; the third information block indicates that the second RS resource includes: the third information block includes a Transmission Configuration Indication field in the DCI, the Transmission Configuration Indication field in the DCI included in the third information block indicates a TCI state, and the one TCI state indicates the second RS resource.

[0832] As an embodiment, the first port is a port of a first RS resource, and the second port is a port of a second RS resource; the third information block indicates the QCL information of the first RS resource, and the QCL information of the first RS resource indicates the second RS resource.

[0833] As an embodiment, the first port is a port of a first RS resource, and the second port is a port of a second RS resource; the third information block indicates a TCI state, and the TCI state indicates the second RS resource.

[0834] As an embodiment, the first port is a port of a first RS resource, and the second port is a port of a second RS resource; the third information block indicates the QCL information of the first RS resource, and the QCL information of the first RS resource includes a TCI state, and the TCI state indicates the second RS resource.

[0835] As an embodiment, the first port is a port of a first RS resource, the second port is a PDSCH DMRS port, the second signal is a PDSCH DMRS, and the third information block indicates the second port.

[0836] As an embodiment, the first port is a port of a first RS resource, the second port is a PDSCH DMRS port, and the second signal is a PDSCH DMRS; the third information block is the Antennaports field in the DCI, and the third information block indicates the second port.

[0837] Example 14

[0838] Embodiment 14 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG14. In FIG14, the processing device 1400 in the first node includes at least a first receiver 1401 or a first transmitter 1402, wherein the first transmitter 1402 is optional.

[0839] As an embodiment, the first node device is a user equipment.

[0840] As an embodiment, the first node device is a relay node device.

[0841] As an embodiment, the first receiver 1401 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in embodiment 4.

[0842] As an embodiment, the first transmitter 1402 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in embodiment 4.

[0843] The first receiver 1401 receives a third signal and a fourth signal at a first port and a second port respectively;

[0844] The first receiver 1401 receives a first signal and a second signal on the first port and the second port respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal;

[0845] In Example 14, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0846] As an embodiment, whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0847] As an embodiment, whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on whether the first node sends the first information block, or whether the first condition is met depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0848] As an embodiment, whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on whether the first node sends the first information block; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0849] As an embodiment, whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0850] As an embodiment, the first transmitter 1402 sends a first information block; wherein, the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0851] As an embodiment, the first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port;

[0852] The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

[0853] As an embodiment, the first port is a DMRS port, the third signal is a DMRS, and the first signal is a DMRS.

[0854] As an embodiment, the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and are signals transmitted on the first port.

[0855] As an embodiment, the second port is a DMRS port, the fourth signal is a DMRS, and the second signal is a DMRS.

[0856] As an embodiment, the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and are signals transmitted on the second port.

[0857] As an embodiment, the first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set;

[0858] Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0859] As an embodiment, the first condition also includes that the second signal occupies resources in the first resource set.

[0860] As an embodiment, the first condition also includes that the resources occupied by the second signal are orthogonal to the first resource set.

[0861] As an embodiment, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0862] As an embodiment, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0863] As an embodiment, only when the first condition is satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0864] As an embodiment, it includes:

[0865] The first receiver 1401 receives a second information block;

[0866] The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0867] As an embodiment, it includes:

[0868] The first receiver 1401 receives a third information block;

[0869] The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0870] Example 15

[0871] Embodiment 15 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG15 . In FIG15 , the processing device 1500 in the second node includes at least the second transmitter 1501 or the second receiver 1502, where the second receiver 1502 is optional.

[0872] As an embodiment, the second node device is a base station.

[0873] As an embodiment, the second node device is a user equipment.

[0874] As an embodiment, the second node device is a relay node device.

[0875] As an embodiment, the second transmitter 1501 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in embodiment 4.

[0876] As an embodiment, the second receiver 1502 includes at least one of {antenna 420, receiver 418, receiving processor 470, multi-antenna receiving processor 472, controller / processor 475, memory 476} in embodiment 4.

[0877] The second transmitter 1501 sends a third signal and a fourth signal through the first port and the second port respectively;

[0878] The second transmitter 1501 sends a first signal and a second signal on the first port and the second port respectively, where the first signal is later than the third signal, and the second signal is later than the fourth signal;

[0879] In Example 15, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether a first condition is satisfied; only when the first condition is satisfied can the large-scale characteristics of the channel transmitting the first signal be inferred from the channel transmitting the second signal; whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0880] As an embodiment, whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

[0881] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the receivers of the third signal and the fourth signal send the first information block, or whether the first condition is satisfied depends on the first information block sent by the receivers of the third signal and the fourth signal; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0882] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the receivers of the third signal and the fourth signal send the first information block; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0883] As an embodiment, whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on the first information block sent by the receivers of the third signal and the fourth signal; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0884] As an embodiment, the second receiver 1502 receives a first information block; wherein the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

[0885] As an embodiment, the first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port;

[0886] The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

[0887] As an embodiment, the first port is a DMRS port, the third signal is a DMRS, and the first signal is a DMRS.

[0888] As an embodiment, the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and are signals transmitted on the first port.

[0889] As an embodiment, the second port is a DMRS port, the fourth signal is a DMRS, and the second signal is a DMRS.

[0890] As an embodiment, the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and are signals transmitted on the second port.

[0891] As an embodiment, the first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set;

[0892] Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0893] As an embodiment, the first condition also includes that the second signal occupies resources in the first resource set.

[0894] As an embodiment, the first condition also includes that the resources occupied by the second signal are orthogonal to the first resource set.

[0895] As an embodiment, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set.

[0896] As an embodiment, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

[0897] As an embodiment, only when the first condition is satisfied, the characteristics of the channel transmitting the first signal that belong to the first characteristic subset can be inferred from the channel transmitting the second signal.

[0898] As an embodiment, it includes:

[0899] The second transmitter 1501 sends a second information block;

[0900] The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource.

[0901] As an embodiment, it includes:

[0902] The second transmitter 1501 sends a third information block;

[0903] The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

[0904] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing 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 functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point, sending and receiving node) and other wireless communication devices.

[0905] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any changes and modifications made based on the embodiments described in the specification, if they can achieve similar partial or complete technical effects, should be considered obvious and fall within the scope of protection of the present invention.

Claims

1. A first node used for wireless communication, characterized in that: include: a first receiver, receiving a third signal and a fourth signal at a first port and a second port, respectively; The first receiver receives a first signal and a second signal at the first port and the second port respectively, the first signal is later than the third signal, and the second signal is later than the fourth signal; Among them, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether the first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

2. The first node according to claim 1, characterized in that: Whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

3. The first node according to claim 1 or 2, characterized in that: Whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the first node sends a first information block, or whether the first condition is satisfied depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

4. The first node according to any one of claims 1 to 3, characterized in that: The first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port; The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

5. The first node according to any one of claims 1 to 4, characterized in that: The first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set; Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

6. The first node according to any one of claims 1 to 5, characterized in that: Only when the first condition is met, the characteristics of the channel transmitting the first signal belonging to the first characteristic subset can be inferred from the channel transmitting the second signal.

7. The first node according to any one of claims 1 to 6, characterized in that: include: The first receiver receives a second information block; The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource; Or, include: The first receiver receives a third information block; The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

8. A second node used for wireless communication, characterized in that: include: a second transmitter, transmitting a third signal and a fourth signal on the first port and the second port respectively; The second transmitter sends a first signal and a second signal on the first port and the second port respectively, the first signal is later than the third signal, and the second signal is later than the fourth signal; Among them, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether the first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

9. The second node according to claim 8, characterized in that: Whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

10. The second node according to claim 8 or 9, characterized in that: Whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the receivers of the third signal and the fourth signal send the first information block, or whether the first condition is satisfied depends on the first information block sent by the receivers of the third signal and the fourth signal; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

11. The second node according to any one of claims 8 to 10, characterized in that: The first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port; The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

12. The second node according to any one of claims 8 to 11, characterized in that: The first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set; Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

13. The second node according to any one of claims 8 to 12, characterized in that: Only when the first condition is met, the characteristics of the channel transmitting the first signal belonging to the first characteristic subset can be inferred from the channel transmitting the second signal.

14. The second node according to any one of claims 8 to 13, characterized in that: include: The second transmitter sends a second information block; The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource; Or, include: The second transmitter sends a third information block; The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

15. A method in a first node for wireless communication, characterized in that: include: receiving a third signal and a fourth signal at the first port and the second port, respectively; Receiving a first signal and a second signal at the first port and the second port respectively, the first signal being later than the third signal, and the second signal being later than the fourth signal; Among them, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether the first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

16. The method in the first node according to claim 15, characterized in that: Whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

17. The method in the first node according to claim 15 or 16, characterized in that: Whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the first node sends a first information block, or whether the first condition is satisfied depends on the first information block sent by the first node; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

18. The method in the first node according to any one of claims 15 to 17, characterized in that: The first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port; The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

19. The method in the first node according to any one of claims 15 to 18, characterized in that: The first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set; Alternatively, the first condition further includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition further includes: resources occupied by the second signal are orthogonal to the first resource set, and resources occupied by the first signal are orthogonal to the first resource set.

20. The method in the first node according to any one of claims 15 to 19, characterized in that: Only when the first condition is met, the characteristics of the channel transmitting the first signal belonging to the first characteristic subset can be inferred from the channel transmitting the second signal.

21. The method in the first node according to any one of claims 15 to 20, characterized in that: include: receiving a second information block; The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource; Or, include: receiving a third information block; The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

22. A method in a second node for wireless communication, characterized in that: include: sending a third signal and a fourth signal on the first port and the second port respectively; Sending a first signal and a second signal on the first port and the second port respectively, wherein the first signal is later than the third signal, and the second signal is later than the fourth signal; Among them, whether the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal depends on whether the first condition is met; only when the first condition is met, the large-scale characteristics of the channel transmitting the first signal can be inferred from the channel transmitting the second signal; whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal.

23. The method in the second node according to claim 22, characterized in that: Whether the first condition is met depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is met depends on the difference between the first reception quality and the second reception quality, the first reception quality depends on the reception of the third signal, and the second reception quality depends on the reception of the fourth signal.

24. The method in the second node according to claim 22 or 23, characterized in that: Whether the first condition is satisfied depends on the reception quality of the third signal and the reception quality of the fourth signal, including: whether the first condition is satisfied depends on whether the receivers of the third signal and the fourth signal send the first information block, or whether the first condition is satisfied depends on the first information block sent by the receivers of the third signal and the fourth signal; the sending or generation of the first information block depends on the reception quality of the third signal and the reception quality of the fourth signal.

25. The method in the second node according to any one of claims 22 to 24, characterized in that: The first port is a DMRS port, the third signal is a DMRS, the first signal is a DMRS, or the first port is a port of a first RS resource, the first signal and the third signal are respectively included in different transmission opportunities of the first RS resource, and the signals transmitted on the first port; The second port is a DMRS port, the fourth signal is DMRS, the second signal is DMRS, or the second port is a port of a second RS resource, the second signal and the fourth signal are respectively included in different transmission opportunities of the second RS resource, and the signals transmitted on the second port.

26. The method in the second node according to any one of claims 22 to 25, characterized in that: The first condition further includes that the second signal occupies resources in the first resource set, or the first condition further includes that the resources occupied by the second signal are orthogonal to the first resource set; Alternatively, the first condition also includes: the second signal occupies resources in the first resource set, and the first signal occupies resources in the first resource set; or, the first condition also includes: the resources occupied by the second signal are orthogonal to the first resource set, and the resources occupied by the first signal are orthogonal to the first resource set.

27. The method in the second node according to any one of claims 22 to 26, characterized in that: Only when the first condition is met, the characteristics of the channel transmitting the first signal belonging to the first characteristic subset can be inferred from the channel transmitting the second signal.

28. The method in the second node according to any one of claims 22 to 27, characterized in that: include: sending a second information block; The second information block indicates the first port; or the second information block indicates a first RS resource, and the first port is a port of the first RS resource; Or, include: sending a third information block; The third information block indicates the second port; or the third information block indicates a second RS resource, and the second port is a port of the second RS resource.

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