A method and apparatus used in a node for wireless communication

Abstract

A method and apparatus used in a node for wireless communication are disclosed. A first node performs a first measurement, or receives a first information; receives a first wireless signal; transmits a second wireless signal. Wherein, the second wireless signal carries a first index, the first index is a non-negative integer; a measurement for the first wireless signal and a first channel information are jointly used to determine the first index; the first measurement is used to determine the first channel information, or the first information is used to indicate the first channel information.

Description

[0001] This application is a divisional application of the following original application:

[0002] -- Original application filing date: May 22, 2019

[0003] -- Original application number: 201910429521.1

[0004] -- Original application title: Method and apparatus used in a node for wireless communication TECHNICAL FIELD

[0005] The present application relates to transmission methods and apparatuses in a wireless communication system, and in particular to transmission schemes and apparatuses for sidelink in a wireless communication system. BACKGROUND

[0006] The application scenarios of future wireless communication systems are increasingly diversified, and different application scenarios have different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, it is decided at the 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network) #72 plenary meeting to study the New Radio (NR) (or Fifth Generation, 5G) technology, and the NR WI (Work Item) is approved at the 3GPP RAN #75 plenary meeting, and the standardization work of NR is started.

[0007] For the rapidly developing Vehicle-to-Everything (V2X) service, 3GPP has also started the standardization and research work under the NR framework. At present, 3GPP has completed the demand formulation work for 5G V2X services and written in the standard TS22.886. 3GPP identifies and defines four major use case groups for 5G V2X services, including: Vehicles Platnooning, Extended Sensors, Advanced Driving and Remote Driving. The technical research work item (SI, Study Item) of NR V2X is approved at the 3GPP RAN #80 plenary meeting. SUMMARY

[0008] One significant feature of NR V2X compared to the existing LTE V2X system is that it can support groupcast and unicast as well as support CSI (Channel Status Information) feedback. The design of CSI feedback needs to be solved.

[0009] To solve the above problems, the present application discloses a solution. It should be noted that, in the case of no conflict, the embodiments in the user equipment of the present application and the features in the embodiments can be applied to the base station, and vice versa. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0010] The present application discloses a method used in a first node for wireless communication, characterized in that it comprises:

[0011] performing a first measurement;

[0012] receiving a first wireless signal;

[0013] sending a second wireless signal;

[0014] wherein the second wireless signal carries a first index, the first index is a non-negative integer; the measurement of the first wireless signal and the first channel information are jointly used to determine the first index; the first measurement is used to determine the first channel information.

[0015] As an embodiment, the problem to be solved by the present application is: by effective congestion control (Congestion Control), the probability of vehicle networking business conflict can be reduced, and the transmission reliability can be improved; in the NR V2X system, how to consider the influence of the congestion control mechanism in the CSI feedback design is a key problem that needs to be studied.

[0016] As an embodiment, the essence of the above method is that the first wireless signal includes CSI-RS, the second wireless signal is the CSI measured based on the first wireless signal, the first channel information reflects the channel congestion degree, and the first measurement is the measurement of the channel congestion degree. The advantage of using the above method is that the channel congestion degree is considered in the calculation process of the CSI, so a CSI most suitable for the channel congestion condition can be fed back, and the transmission reliability of the receiving node of the CSI is better guaranteed.

[0017] The present application discloses a method used in a first node for wireless communication, characterized in that it comprises:

[0018] receiving first information;

[0019] receiving a first wireless signal;

[0020] transmitting a second wireless signal;

[0021] The second wireless signal carries a first index, the first index being a non-negative integer; measurement for the first wireless signal and first channel information are jointly used to determine the first index; and the first information is used to indicate the first channel information.

[0022] As an embodiment, the above method is characterized in that the first wireless signal comprises a CSI-RS, the second wireless signal is a CSI measured based on the first wireless signal, and the first channel information reflects a channel congestion degree. The above method has the advantage that the channel congestion degree is considered in the calculation of the CSI, so that a CSI most suitable for the channel congestion condition can be fed back, thereby better ensuring the transmission reliability of the receiving node of the CSI.

[0023] According to an aspect of the present application, the above method is characterized in that the first index is used to indicate a first modulation and coding mode, the first channel information is used to determine a first modulation and coding mode subset, and measurement for the first wireless signal and the first modulation and coding mode subset are jointly used to determine the first modulation and coding mode.

[0024] As an embodiment, the above method is characterized in that RAN1 #96bis meeting agrees that CSI feedback of NRV2X includes RI (Rank indicator) and CQI (Channel quality indicator); the first index is CQI, the first modulation and coding mode is a modulation order and a code rate corresponding to CQI, and the first channel information is CBR (Channel Busy Ratio). The first modulation and coding mode subset is a range of MCS (Modulation and Coding Scheme) that can be used for PSSCH transmission corresponding to CBR. The above method has the advantage that the range of MCS corresponding to CBR is considered when selecting CQI, so that a modulation order and a code rate most suitable for the CBR can be fed back, thereby better ensuring the transmission reliability of the receiving node of the CSI.

[0025] According to an aspect of the present application, the above method is characterized in that the first modulation and coding mode subset includes N modulation and coding modes, N spectral efficiencies are spectral efficiencies of the N modulation and coding modes, and N is a positive integer; and the spectral efficiency of the first modulation and coding mode is not greater than the maximum value in the N spectral efficiencies.

[0026] According to an aspect of the present application, the method is characterized in that the first measurement comprises performing X times of the first type of measurement in X time-frequency units respectively, X being a positive integer; the X times of the first type of measurement are respectively used to obtain X first type of measurement values, and the X first type of measurement values are used to determine the first channel information.

[0027] According to an aspect of the present application, the method is characterized in that a first priority is used to determine the first index, first signaling is used to determine time-frequency resources occupied by the first wireless signal, and the first signaling is used to determine the first priority; or the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

[0028] As an embodiment, the method is essentially characterized in that services of V2X are divided into multiple priorities (such as PPPP and 5QI), each priority has its respective CBR range and MCS range, and the first priority is one of the priorities; the CSI feedback only includes a CQI corresponding to the first priority, the SCI signaling triggering the CSI-RS indicates the first priority, and the CQI is selected according to the MCS range corresponding to the first priority; or the CSI feedback includes P CQIs, and the P CQIs correspond to P priorities respectively.

[0029] According to an aspect of the present application, the method is characterized in that it comprises:

[0030] receiving second information;

[0031] The second information is used to determine time-frequency resources occupied by the first wireless signal.

[0032] According to an aspect of the present application, the method is characterized in that it comprises:

[0033] sending first signaling;

[0034] The first signaling is used to determine time-frequency resources occupied by the second wireless signal.

[0035] The present application discloses a method used in a second node for wireless communication, characterized in that it comprises:

[0036] sending a first wireless signal;

[0037] receiving a second wireless signal;

[0038] The second wireless signal carries a first index, the first index is a non-negative integer; and measurement on the first wireless signal and first channel information are jointly used to determine the first index.

[0039] According to an aspect of the present application, the method is characterized in that the transmitting node of the second wireless signal performs the first measurement, and the first measurement is used to determine the first channel information.

[0040] According to an aspect of the present application, the method is characterized in that it comprises:

[0041] transmitting the first information;

[0042] The first information is used to indicate the first channel information.

[0043] According to an aspect of the present application, the method is characterized in that the first index is used to indicate a first modulation and coding scheme, the first channel information is used to determine a first modulation and coding scheme subset, and the measurement of the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

[0044] According to an aspect of the present application, the method is characterized in that a first priority is used to determine the first index, a first signaling is used to determine a time-frequency resource occupied by the first wireless signal, and the first signaling is used to determine the first priority; or the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

[0045] According to an aspect of the present application, the method is characterized in that it comprises:

[0046] transmitting the second information;

[0047] The second information is used to determine a time-frequency resource occupied by the first wireless signal.

[0048] According to an aspect of the present application, the method is characterized in that it comprises:

[0049] receiving the first signaling;

[0050] The first signaling is used to determine a time-frequency resource occupied by the second wireless signal.

[0051] The present application discloses a first node device used for wireless communication, characterized in that it comprises:

[0052] a first receiver, which performs a first measurement or receives first information; and receives a first wireless signal;

[0053] a first transmitter, which transmits a second wireless signal;

[0054] The second wireless signal carries a first index, and the first index is a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used to determine the first index; and the first measurement is used to determine the first channel information, or the first information is used to indicate the first channel information.

[0055] The application discloses a second node device used for wireless communication, which is characterized by comprising:

[0056] a second transmitter, which transmits a first wireless signal;

[0057] a second receiver, which receives a second wireless signal;

[0058] The second wireless signal carries a first index, and the first index is a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used to determine the first index.

[0059] As an embodiment, the method in the application has the following advantages:

[0060] -By effective congestion control (Congestion Control), the probability of vehicle networking service conflict can be reduced, and transmission reliability can be improved; the application proposes a CSI feedback method considering the influence of the congestion control mechanism in the NRV2X system.

[0061] In the method in the application, the degree of channel congestion is considered in the calculation process of CSI, a CSI most suitable for the channel congestion condition can be fed back, and the transmission reliability of the receiving node of the CSI is better guaranteed.

[0062] In the method in the application, the MCS range corresponding to CBR is considered when selecting CQI, so a modulation order and code rate most suitable for the CBR can be fed back, thereby better guaranteeing the transmission reliability of the receiving node of the CSI.

[0063] The method in the application can feed back a CSI corresponding to a given service priority, or feed back CSIs corresponding to multiple service priorities respectively. BRIEF DESCRIPTION OF DRAWINGS

[0064] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0065] Figure 1 A flowchart of a first measurement, a first wireless signal and a second wireless signal according to an embodiment of the application is shown;

[0066] Figure 2A flow diagram of a first information, a first wireless signal and a second wireless signal is shown according to one embodiment of the application;

[0067] Figure 3 A schematic diagram of a network architecture is shown according to one embodiment of the application;

[0068] Figure 4 A schematic diagram of a radio protocol architecture for a user plane and a control plane is shown according to one embodiment of the application;

[0069] Figure 5 A schematic diagram of a first communication device and a second communication device is shown according to one embodiment of the application;

[0070] Figure 6 A flow diagram of a wireless signal transmission is shown according to one embodiment of the application;

[0071] Figure 7 A flow diagram of a wireless signal transmission is shown according to another embodiment of the application;

[0072] Figure 8 A schematic diagram of a measurement for a first wireless signal and a first channel information being jointly used for determining a first index is shown according to one embodiment of the application;

[0073] Figure 9 A schematic diagram of a first channel information being used for determining a first modulation and coding scheme subset is shown according to one embodiment of the application;

[0074] Figure 10 A schematic diagram of a measurement for a first wireless signal and a first modulation and coding scheme subset being jointly used for determining a first modulation and coding scheme is shown according to one embodiment of the application;

[0075] Figure 11 A schematic diagram of a first index is shown according to one embodiment of the application;

[0076] Figure 12 A schematic diagram of a first index is shown according to another embodiment of the application;

[0077] Figure 13 A schematic diagram of a first measurement is shown according to one embodiment of the application;

[0078] Figure 14 A schematic diagram of X first type of measurement values being used for determining a first channel information is shown according to one embodiment of the application;

[0079] Figure 15 A schematic diagram of a first priority being used for determining a first index is shown according to one embodiment of the application;

[0080] Figure 16 A schematic diagram is shown illustrating how P priorities are used to determine P indices according to an embodiment of this application;

[0081] Figure 17 A schematic diagram illustrating the relationship between P priorities, P sets of modulation and coding schemes, a first priority, and Q subsets of modulation and coding schemes according to an embodiment of this application is shown.

[0082] Figure 18 A structural block diagram of a processing apparatus in a first node device according to an embodiment of this application is shown;

[0083] Figure 19 A structural block diagram of a processing apparatus in a second node device according to an embodiment of this application is shown. Detailed Implementation

[0084] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0085] Example 1

[0086] Example 1 illustrates a flowchart of a first measurement, a first wireless signal, and a second wireless signal according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes does not represent the chronological order of the steps they represent.

[0087] In Embodiment 1, the first node in this application performs a first measurement in step 101; receives a first wireless signal in step 102; and transmits a second wireless signal in step 103; wherein the second wireless signal carries a first index, which is a non-negative integer; the measurement of the first wireless signal and the first channel information are used together to determine the first index; and the first measurement is used to determine the first channel information.

[0088] As an example, the first measurement is a measurement of CBR (Channel Busy Ratio).

[0089] As an example, the first measurement is a measurement of CBQ (Channel Busy Quantity).

[0090] As an example, the first measurement is used to determine the channel occupancy status of the measured channel.

[0091] As one embodiment, the first measurement is used to determine a channel occupancy status in a measured frequency range.

[0092] As one embodiment, the first measurement is used to determine a proportion of occupied channels among all channels.

[0093] As one embodiment, the first node performs a first measurement, and the first measurement is used to determine the first channel information.

[0094] As one embodiment, the first node performs a first measurement, and the first node determines the first channel information according to a measurement result of the first measurement.

[0095] As one embodiment, the first node performs a first measurement, and the first node obtains X first-type measurement values through the first measurement, and the X first-type measurement values are used to determine the first channel information.

[0096] As one embodiment, the first node receives first information, and the first information is used to indicate the first channel information.

[0097] As one embodiment, the first channel information is a CBR (Channel Busy Ratio) value.

[0098] As one embodiment, the first channel information is a CBQ (Channel Busy Quantity) value.

[0099] As one embodiment, the first channel information indicates a channel occupancy status of a measured channel.

[0100] As one embodiment, the first channel information indicates a channel occupancy status in a measured frequency range.

[0101] As one embodiment, the first channel information is a non-negative real number.

[0102] As one embodiment, the first channel information is a non-negative real number not greater than 1.

[0103] As one embodiment, the first channel information indicates a proportion of occupied channels among all channels.

[0104] As one embodiment, the first channel information indicates a first modulation and coding scheme (MCS) subset, and the first modulation and coding scheme subset includes a positive integer of modulation and coding schemes (MCSs).

[0105] As one embodiment, the first wireless signal is Unicast.

[0106] As one embodiment, the first wireless signal is Groupcast.

[0107] As one embodiment, the first wireless signal is Broadcast.

[0108] As one embodiment, the first wireless signal is transmitted over a data channel.

[0109] As one embodiment, the first wireless signal is transmitted over a Sidelink.

[0110] As one embodiment, the first wireless signal is transmitted over a Radio Interface between user equipment.

[0111] As one embodiment, the first wireless signal is transmitted over a Radio Interface employed by the first node in the application and the second node in the application for communication.

[0112] As one embodiment, the first wireless signal is transmitted over a Sidelink Radio Interface.

[0113] As one embodiment, the first wireless signal is transmitted over a Radio Interface between user equipment and base station equipment.

[0114] As one embodiment, the first wireless signal is transmitted over a Uu interface.

[0115] As one embodiment, the first wireless signal is transmitted over a PC5 interface.

[0116] As one embodiment, the first wireless signal is transmitted over a SL-SCH (Sidelink Shared Channel).

[0117] As one embodiment, the first wireless signal is transmitted over a PSSCH (Physical Sidelink Shared Channel).

[0118] As one embodiment, the first wireless signal is transmitted in a PSSCH (Physical Sidelink Shared Channel).

[0119] As one embodiment, the first wireless signal comprises a SL DMRS (SideLink DeModulation Reference Signal).

[0120] As one embodiment, the first wireless signal comprises a SL CSI-RS (SideLink Channel State Information-Reference Signal).

[0121] As one embodiment, the first wireless signal comprises at least one of a reference signal or a data signal.

[0122] As one embodiment, the first wireless signal comprises a reference signal.

[0123] As one embodiment, the first wireless signal comprises a reference signal and a data signal.

[0124] As one embodiment, the first wireless signal comprises a data signal.

[0125] As one embodiment, the first wireless signal further carries a transport block (TB).

[0126] As one embodiment, the measurement for the first wireless signal is used by the first node for at least one of channel measurement or interference measurement.

[0127] As one embodiment, the measurement for the first wireless signal is used by the first node for measurement of CSI.

[0128] As one sub-embodiment of the above embodiment, the CSI comprises at least one of a RI (Rank indicator), a PMI (Precoding Matrix Indicator), a CQI (Channel quality indicator) or a CRI (Csi-reference signal Resource Indicator).

[0129] As one embodiment, the second wireless signal is unicast.

[0130] As one embodiment, the second wireless signal is groupcast.

[0131] As one embodiment, the second wireless signal is broadcast.

[0132] As an embodiment, the second wireless signal is transmitted over a data channel.

[0133] As an embodiment, the second wireless signal is transmitted over a Sidelink.

[0134] As an embodiment, the second wireless signal is transmitted over a Radio Interface between user equipment.

[0135] As an embodiment, the second wireless signal is transmitted over a Radio Interface employed for communication between the first node in the application and the second node in the application.

[0136] As an embodiment, the second wireless signal is transmitted over a Sidelink Radio Interface.

[0137] As an embodiment, the second wireless signal is transmitted over a Radio Interface between user equipment and base station equipment.

[0138] As an embodiment, the second wireless signal is transmitted over a Uu interface.

[0139] As an embodiment, the second wireless signal is transmitted over a PC5 interface.

[0140] As an embodiment, the second wireless signal is transmitted over a SL-SCH (Sidelink Shared Channel).

[0141] As an embodiment, the second wireless signal is transmitted over a PSSCH (Physical Sidelink Shared Channel).

[0142] As an embodiment, the second wireless signal is transmitted in a PSSCH (Physical Sidelink Shared Channel).

[0143] As an embodiment, the first index is one of a RI (Rank indicator), a PMI (Precoding Matrix Indicator), a CQI (Channel quality indicator) or a CRI (Csi-reference signal Resource Indicator).

[0144] As one embodiment, the first index is CQI.

[0145] As one embodiment, the second wireless signal carries CSI, and the CSI carried by the second wireless signal includes the first index.

[0146] As one sub-embodiment of the above embodiment, the CSI includes at least one of RI (Rank Indicator), PMI (Precoding Matrix Indicator), CQI (Channel Quality Indicator) or CRI (Csi-reference signal Resource Indicator).

[0147] As one embodiment, a first bit block is used to generate the second wireless signal, the first bit block includes a first sub-block, and the first sub-block indicates the first index; the first bit block includes a positive integer number of bits, the first sub-block includes a positive integer number of bits, and the number of bits included in the first sub-block is not greater than the number of bits included in the first bit block.

[0148] As one sub-embodiment of the above embodiment, the first bit block only includes the first sub-block, and the number of bits included in the first sub-block is equal to the number of bits included in the first bit block.

[0149] As one sub-embodiment of the above embodiment, the first bit block further includes bits other than the first sub-block, and the number of bits included in the first sub-block is less than the number of bits included in the first bit block.

[0150] As one sub-embodiment of the above embodiment, the first bit block indicates CSI, and the first sub-block indicates CQI.

[0151] As one sub-embodiment of the above embodiment, the first bit block indicates at least one of RI, PMI, CQI or CRI.

[0152] As one sub-embodiment of the above embodiment, the first sub-block indicates one of RI, PMI, CQI or CRI.

[0153] As one sub-example of the above embodiment, the first bit block is subjected to CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, mapping to resource elements, OFDM baseband signal generation, modulation and upconversion in sequence to obtain the second wireless signal.

[0154] As one sub-example of the above embodiment, the first bit block is subjected to CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, mapping to virtual resource blocks, mapping from virtual to physical resource blocks, OFDM baseband signal generation, modulation and upconversion in sequence to obtain the second wireless signal.

[0155] As a sub-embodiment of the above-mentioned embodiment, the first bit block goes through CRC insertion, segmentation, code block level CRC insertion, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, precoding, mapping to resource element, OFDM baseband signal generation, modulation and upconversion in sequence to obtain the second wireless signal.

[0156] Example 2

[0157] Embodiment 2 illustrates a flow chart of the first information, the first wireless signal and the second wireless signal according to an embodiment of the present application, as shown in FIG. 2. In FIG. 2, each block represents a step, and it is particularly emphasized that the order of the blocks in the figure does not represent the time sequence of the steps represented. Figure 2 Figure 2 In FIG. 2, each block represents a step, and it is particularly emphasized that the order of the blocks in the figure does not represent the time sequence of the steps represented.

[0158] In Embodiment 2, the first node in the present application receives the first information in step 1001, receives the first wireless signal in step 1002, and transmits the second wireless signal in step 1003; wherein the second wireless signal carries the first index, the first index is a non-negative integer; the measurement of the first wireless signal and the first channel information are used together to determine the first index; the first information is used to indicate the first channel information.

[0159] As an embodiment, the first information directly indicates the first channel information.

[0160] As an embodiment, the first information indirectly indicates the first channel information.

[0161] As an embodiment, the first information explicitly indicates the first channel information.

[0162] As an embodiment, the first information implicitly indicates the first channel information.

[0163] As an embodiment, the first information is a higher layer information. ​

[0164] As one embodiment, the first information is a physical layer information.

[0165] As one embodiment, the first information is transmitted through a physical layer signaling.

[0166] As one embodiment, the first information is transmitted through a high layer signaling.

[0167] As one embodiment, the first information includes all or part of a high layer information.

[0168] As one embodiment, the first information includes all or part of a physical layer information.

[0169] As one embodiment, the first information is transmitted through a DL-SCH (Downlink Shared Channel).

[0170] As one embodiment, the first information is transmitted through a PDSCH (Physical Downlink Shared Channel).

[0171] As one embodiment, the first information includes one or more fields of a SIB (System Information Block).

[0172] As one embodiment, the first information includes one or more fields of RMSI (Remaining System Information).

[0173] As one embodiment, the first information includes all or part of fields of an IE (Information Element) of a RRC (Radio Resource Control) layer information.

[0174] As one embodiment, the first information is transmitted through a Sidelink.

[0175] As one embodiment, the first information is transmitted through a SL-SCH (Sidelink Shared Channel).

[0176] As one embodiment, the first information is transmitted through a PSSCH (Physical Sidelink Shared Channel).

[0177] As one embodiment, the first information is broadcasted.

[0178] As one embodiment, the first information is groupcasted.

[0179] As one embodiment, the first information is unicasted.

[0180] As one embodiment, the first information is cell specific.

[0181] As one embodiment, the first information is user equipment specific.

[0182] As one embodiment, the first information is transmitted through a PDCCH (Physical Downlink Control Channel).

[0183] As one embodiment, the first information includes all or part of fields of a DCI (Downlink Control Information) signaling.

[0184] As one embodiment, the first information is transmitted through a PSCCH (Physical Sidelink Control Channel).

[0185] As one embodiment, the first information includes all or part of fields of a SCI (Sidelink Control Information) signaling.

[0186] As one embodiment, the first information is transmitted through a radio interface between user equipment.

[0187] As one embodiment, the first information is transmitted through a radio interface adopted by communication between the first node in the application and the second node in the application.

[0188] As one embodiment, the first information is transmitted through a radio interface of a sidelink.

[0189] As one embodiment, the first information is transmitted through a radio interface between user equipment and base station equipment.

[0190] As one embodiment, the first information is transmitted over a Uu interface.

[0191] As one embodiment, the first information is transmitted over a PC5 interface.

[0192] As one embodiment, the first information is transmitted over a wireless signal.

[0193] As one embodiment, the first information is transmitted from a base station to the first node.

[0194] As one embodiment, the first information is transmitted from a node other than the first node and the second node to the first node.

[0195] As one embodiment, the first information is transmitted from the second node in this application to the first node.

[0196] As one embodiment, the first information is passed from a higher layer of the first node to a physical layer of the first node.

[0197] As one embodiment, the first information is passed inside the first node.

[0198] Example 3

[0199] Embodiment 3 illustrates a schematic diagram of a network architecture according to this application, as shown in FIG. 3. Figure 3

[0200] Figure 3 ​​A diagram illustrating a network architecture 200 of a 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) system is shown. The 5G NR or LTE network architecture 200 can be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 can include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet services 230. The EPS can interconnect with other access networks, but these are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application are applicable to packet-switched or other types of wireless communication systems. The NG-RAN includes an NR NodeB (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol terminations toward the UE 201. The gNB 203 can be connected to the other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 can 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 (Transmit Receive Point), or some other suitable terminology. The gNB 203 provides access to the EPC / 5G-CN 210 for the UE 201. Examples of UEs 201 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a non-tethered personal branch station, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an unmanned aerial vehicle, a narrow-band internet of things device, a machine type communication device, a land vehicle, a car, a wearable device, or any other similar functional device. Those skilled in the art will also readily appreciate that the UE 201 can be referred to as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wirelessThe EPC / 5G-CN 210 includes a MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF 214, a S-GW (Service Gateway) 212, and a P-GW (Packet Date Network Gateway) 213. The MME / AMF / UPF 211 is a control node that handles signaling between the UE 201 and the EPC / 5G-CN 210. Generally, the MME / AMF / UPF 211 provides bearer and connection management. All user IP (Internet Protocal) packets are transferred through the S-GW 212, which itself is connected to the P-GW 213. The P-GW 213 provides UE IP address allocation, among other functions. The P-GW 213 is connected to Internet services 230. The Internet services 230 include operator corresponding Internet protocol services, which can include the Internet, an intranet, IMS (IP Multimedia Subsystem), and packet switched streaming services, among others.

[0201] As one embodiment, the UE 201 corresponds to the first node in the present application.

[0202] As one embodiment, the UE 201 supports transmission in a companion link.

[0203] As one embodiment, the UE 201 supports a PC5 interface.

[0204] As one embodiment, the UE 201 supports a Uu interface.

[0205] As one embodiment, the UE 201 supports vehicle-to-everything.

[0206] As one embodiment, the UE 201 supports V2X services.

[0207] As one embodiment, the UE 241 corresponds to the second node in the present application.

[0208] As one embodiment, the UE 241 supports transmission in a companion link.

[0209] As one embodiment, the UE 241 supports a PC5 interface.

[0210] As one embodiment, the UE 241 supports a Uu interface.

[0211] As one embodiment, the UE 241 supports vehicle-to-everything.

[0212] As one embodiment, the UE 241 supports V2X service.

[0213] As one embodiment, the gNB 203 corresponds to the second node in this application.

[0214] As one embodiment, the gNB 203 supports vehicle-to-everything.

[0215] As one embodiment, the gNB 203 supports V2X service.

[0216] As one embodiment, the gNB 203 supports PC5 interface.

[0217] Example 4

[0218] Embodiment 4 shows a schematic diagram of an embodiment of a user plane and control plane radio protocol architecture according to this application, as shown in FIG. 4. Figure 4 Figure 4 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and control plane 300, Figure 4 ​The radio protocol architecture for the control plane 300 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, is shown with three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer), which is the lowest layer, implements various PHY (Physical layer) signal processing functions. The L1 layer will be referred to as the PHY 301 herein. Layer 2 (L2 layer) 305 is above the PHY 301 and is responsible for the link between the first communication node device and the second communication node device, as well as between two UEs, through the PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, a RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which are terminated at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security functions, through encryption of data packets, and handover support for 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 the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture for the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer), which are 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 for the first communication node device and the second communication node device, but 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 a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for the mapping between a QoS flow and a data radio bearer (DRB) to support the diversity of services. Although not illustrated, the first communication node device can have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at a P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0219] As one embodiment, the wireless protocol architecture in Figure 4 is applicable to the first node in the present application.

[0220] As one embodiment, the wireless protocol architecture in Figure 4 is applicable to the second node in the present application.

[0221] As one embodiment, the first information in the present application is generated at the RRC sublayer 306.

[0222] As one embodiment, the first information in the present application is generated at the MAC sublayer 352.

[0223] As one embodiment, the first information in the present application is generated at the PHY 351.

[0224] As one embodiment, the second information in the present application is generated at the RRC sublayer 306.

[0225] As one embodiment, the second information in the present application is generated at the MAC sublayer 352.

[0226] As one embodiment, the second information in the present application is generated at the PHY 351.

[0227] As one embodiment, the first signaling in the present application is generated at the PHY 351.

[0228] As one embodiment, the first wireless signal in the present application is generated at the PHY 351.

[0229] As one embodiment, the second wireless signal in the present application is generated at the PHY 351.

[0230] As one embodiment, the first measurement in the present application is performed in the RRC sublayer 306.

[0231] As one embodiment, the first measurement in this application is performed in the MAC sublayer 352.

[0232] As one embodiment, the first measurement in this application is performed in the PHY 351.

[0233] Example 5

[0234] Embodiment 5 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 5 Figure 5 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0235] The first communication 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.

[0236] 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.

[0237] ​In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocations for the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multiple antenna transmit processor 471 implement various signal processing functions for the LI layer (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and mapping of coded and interleaved data onto various signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multiple antenna transmit processor 471 performs digital spatial pre-coding of the coded and modulated symbols, including codebook-based and non-codebook-based pre-coding, and beamforming processing, generating one or more spatial streams. The transmit processor 416 then maps to each spatial stream to a subcarrier, multiplexes the stream with reference signals (e.g., pilot) in the time and / or frequency domain, and then performs an inverse fast Fourier transform (IFFT) to generate a time-domain multicarrier symbol stream for the physical channel. The multiple antenna transmit processor 471 then performs transmit analog pre-coding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 into a radio frequency stream, and then provides the radio frequency stream to the corresponding antenna 420.

[0238] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and converts the RF stream into a baseband multicarrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the Ll layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receivers 454. The receive processor 456 converts the baseband multicarrier symbol stream from 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 signals and the reference signals are demultiplexed by the receive processor 456, where the reference signals will be used for channel estimation, and the data signals are recovered after multi-antenna detection in the multi-antenna receive processor 458 for any spatial streams destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered by the receive processor 456 and generate soft decisions. The receive processor 456 then decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channels. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 can be associated with a memory 460 that stores program codes and data. The memory 460 can be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals can also be provided to the L3 for L3 processing.

[0239] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function described at the first communication device 410 in the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping, channel coding processing, multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing, and then transmit processor 468 produces spatial streams that are modulated onto multi-carrier / single-carrier symbol streams, which are provided to different antennas 452 via transmitters 454 after analog precoding / beamforming operations in multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency signal, and then provides the radio frequency signal to antenna 452.

[0240] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receive functions described at the second communication device 450 in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its respective antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to multi-antenna receive processor 472 and receive processor 470. Receive processor 470 and multi-antenna receive processor 472 together implement the functionality of the L1 layer. Controller / processor 475 implements the functionality of the L2 layer. Controller / processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 can be referred to as a computer readable medium. In the transmission from the second communication device 450 to the first communication device 410, controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from UE 450. Upper layer data packets from controller / processor 475 can be provided to a core network.

[0241] As one embodiment, the first node in the present application comprises the second communication device 450, and the second node in the present application comprises the first communication device 410.

[0242] As one subembodiment of the above embodiment, the first node is a user equipment and the second node is a user equipment.

[0243] As one subembodiment of the above embodiment, the first node is a user equipment and the second node is a relay node.

[0244] As one subembodiment of the above embodiment, the first node is a relay node and the second node is a user equipment.

[0245] As one subembodiment of the above embodiment, the first node is a user equipment and the second node is a base station equipment.

[0246] As one subembodiment of the above embodiment, the first node is a relay node and the second node is a base station equipment.

[0247] As one subembodiment of the above embodiment, the second communication device 450 comprises at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0248] As one subembodiment of the above embodiment, the first communication device 410 comprises at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0249] As one subembodiment of the above embodiment, the first communication device 410 comprises at least one controller / processor; the at least one controller / processor is responsible for error detection using positive acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol to support HARQ operation.

[0250] As one embodiment, the second communication device 450 comprises at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the second communication device 450 to perform at least the following: performing a first measurement; receiving a first wireless signal; transmitting a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; the measurement of the first wireless signal and first channel information are jointly used to determine the first index; the first measurement is used to determine the first channel information.

[0251] As one subembodiment of the above embodiment, the second communication device 450 corresponds to the first node in the present application.

[0252] As one embodiment, the second communication device 450 comprises: at least one processor and at least one memory including a computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the second communication device 450 to perform: receiving first information; receiving a first wireless signal; transmitting a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used for determining the first index; the first information is used for indicating the first channel information.

[0253] As one sub-embodiment of the above-mentioned embodiment, the second communication device 450 corresponds to the first node in the present application.

[0254] As one embodiment, the second communication device 450 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, causes actions comprising: performing a first measurement; receiving a first wireless signal; transmitting a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used for determining the first index; the first measurement is used for determining the first channel information.

[0255] As one sub-embodiment of the above-mentioned embodiment, the second communication device 450 corresponds to the first node in the present application.

[0256] As one embodiment, the second communication device 450 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, causes actions comprising: receiving first information; receiving a first wireless signal; transmitting a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used for determining the first index; the first information is used for indicating the first channel information.

[0257] As one sub-embodiment of the above-mentioned embodiment, the second communication device 450 corresponds to the first node in the present application.

[0258] As one embodiment, the first communication device 410 comprises: at least one processor and at least one memory including a computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the first communication device 410 to perform. The first communication device 410 is caused to perform: transmitting a first wireless signal; receiving a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used to determine the first index.

[0259] As one subembodiment of the above embodiment, the first communication device 410 corresponds to the second node in the present application.

[0260] As one embodiment, the first communication device 410 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, causes actions comprising: transmitting a first wireless signal; receiving a second wireless signal; wherein the second wireless signal carries a first index, the first index being a non-negative integer; a measurement for the first wireless signal and first channel information are jointly used to determine the first index.

[0261] As one subembodiment of the above embodiment, the first communication device 410 corresponds to the second node in the present application.

[0262] As one embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, the controller / processor 459, the memory 460, the data source 467} is configured to receive the first information in the present application.

[0263] As one embodiment, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, the memory 476} is configured to transmit the first information in the present application.

[0264] As one embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, the controller / processor 459, the memory 460, the data source 467} is configured to receive the second information in the present application.

[0265] As one embodiment, at least one of the {antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475, memory 476} is configured to send the second information in the present application.

[0266] As one embodiment, at least one of the {antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, data source 467} is configured to receive the first wireless signal in the present application.

[0267] As one embodiment, at least one of the {antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475, memory 476} is configured to send the first wireless signal in the present application.

[0268] As one embodiment, at least one of the {antenna 452, transmitter 454, multi-antenna transmit processor 458, transmit processor 468, controller / processor 459, memory 460, data source 467} is configured to send the first signaling in the present application.

[0269] As one embodiment, at least one of the {antenna 420, receiver 418, multi-antenna receive processor 472, receive processor 470, controller / processor 475, memory 476} is configured to receive the first signaling in the present application.

[0270] As one embodiment, at least one of the {antenna 452, transmitter 454, multi-antenna transmit processor 458, transmit processor 468, controller / processor 459, memory 460, data source 467} is configured to send the second wireless signal in the present application.

[0271] As one embodiment, at least one of the {antenna 420, receiver 418, multi-antenna receive processor 472, receive processor 470, controller / processor 475, memory 476} is configured to receive the second wireless signal in the present application.

[0272] Example 6

[0273] Embodiment 6 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in FIG. 6. In FIG. 6, Figure 6 In FIG. 6, Figure 6 In FIG. 6,First node U02 and Second node communicate over an air interface. In the attached drawings: Figure 6 In the attached drawings, the steps in the dashed box F1 are optional.

[0274] For the first node U02, in step S10 the second information is transmitted; in step S11 the first wireless signal is transmitted; in step S12 the first signaling is received; in step S13 the second wireless signal is received. Second node N01 For the first node U02, in step S20 the second information is received; in step S21 the first wireless signal is received; in step S22 the first measurement is performed; in step S23 the first signaling is transmitted; in step S24 the second wireless signal is transmitted.

[0275] First node U02 In embodiment 6, the second wireless signal carries a first index, the first index being a non-negative integer; the measurement for the first wireless signal and the first channel information are jointly used by the first node U02 for determining the first index; the first measurement is used by the first node U02 for determining the first channel information.

[0276] As an embodiment, the second information is used to indicate time-frequency resources occupied by the first wireless signal.

[0277] As an embodiment, the second information directly indicates time-frequency resources occupied by the first wireless signal.

[0278] As an embodiment, the second information indirectly indicates time-frequency resources occupied by the first wireless signal.

[0279] As an embodiment, the second information explicitly indicates time-frequency resources occupied by the first wireless signal.

[0280] As an embodiment, the second information implicitly indicates time-frequency resources occupied by the first wireless signal.

[0281] As an embodiment, the second information implicitly indicates time-frequency resources occupied by the first wireless signal.

[0282] As an embodiment, the second information indicates an index of the first wireless signal.

[0283] As an embodiment, the second information indicates an index of the first wireless signal, the index of the first wireless signal being used by the first node U02 for determining time-frequency resources occupied by the first wireless signal.

[0284] ​As an embodiment, the second information indicates an index of the first wireless signal, the index of the first wireless signal indicates configuration information of the first wireless signal, and the configuration information of the first wireless signal includes the time-frequency resource occupied by the first wireless signal.

[0285] As an embodiment, the time-frequency resource occupied by the second information is used by the first node U02 to determine the time-frequency resource occupied by the first wireless signal.

[0286] As an embodiment, the time-frequency resource occupied by the second information and the time-frequency resource occupied by the first wireless signal are associated, and the time-frequency resource occupied by the first wireless signal can be inferred from the time-frequency resource occupied by the second information.

[0287] As an embodiment, the time-frequency resource occupied by the second information and the time-frequency resource occupied by the first wireless signal are associated.

[0288] As an embodiment, the time-frequency resource occupied by the second information and the time-frequency resource occupied by the first wireless signal are associated.

[0289] As an embodiment, the time-domain resource occupied by the second information and the time-domain resource occupied by the first wireless signal are associated.

[0290] As an embodiment, the time-domain resource occupied by the second information and the time-domain resource occupied by the first wireless signal belong to the same slot (Slot).

[0291] As an embodiment, the time-domain resource occupied by the second information and the time-domain resource occupied by the first wireless signal belong to the same subframe (Subframe).

[0292] As an embodiment, the time-domain resource occupied by the second information and the time-domain resource occupied by the first wireless signal belong to the same mini-slot (Mini-slot).

[0293] As an embodiment, the frequency-domain resource occupied by the second information and the frequency-domain resource occupied by the first wireless signal belong to the same BWP (BandWidth Part).

[0294] As an embodiment, the frequency-domain resource occupied by the second information and the frequency-domain resource occupied by the first wireless signal belong to the same subband (Subband).

[0295] As an embodiment, the frequency domain resource occupied by the second information and the frequency domain resource occupied by the first wireless signal belong to the same carrier.

[0296] As an embodiment, the second information is a higher layer information.

[0297] As an embodiment, the second information is a physical layer information.

[0298] As an embodiment, the second information is transmitted by a physical layer signaling.

[0299] As an embodiment, the second information is transmitted by a higher layer signaling.

[0300] As an embodiment, the second information includes all or part of a higher layer information.

[0301] As an embodiment, the second information includes all or part of a physical layer information.

[0302] As an embodiment, the second information is transmitted by a DL-SCH (Downlink Shared Channel).

[0303] As an embodiment, the second information is transmitted by a PDSCH (Physical Downlink Shared Channel).

[0304] As an embodiment, the second information includes one or more fields of a SIB (System Information Block).

[0305] As an embodiment, the second information includes one or more fields of RMSI (Remaining System Information).

[0306] As an embodiment, the second information includes all or part of fields of an IE (Information Element) in a RRC (Radio Resource Control) layer information.

[0307] As an embodiment, the second information is transmitted by a sidelink.

[0308] As an embodiment, the second information is transmitted through SL-SCH (Sidelink Shared Channel).

[0309] As an embodiment, the second information is transmitted through PSSCH (Physical Sidelink Shared Channel).

[0310] As an embodiment, the second information is broadcasted.

[0311] As an embodiment, the second information is groupcasted.

[0312] As an embodiment, the second information is unicasted.

[0313] As an embodiment, the second information is cell-specific.

[0314] As an embodiment, the second information is UE-specific.

[0315] As an embodiment, the second information is transmitted through PDCCH (Physical Downlink Control Channel).

[0316] As an embodiment, the second information includes a part of field of a DCI (Downlink Control Information) signaling.

[0317] As an embodiment, the second information is transmitted through PSCCH (Physical Sidelink Control Channel).

[0318] As an embodiment, the second information includes a part of field of a SCI (Sidelink Control Information) signaling.

[0319] As an embodiment, the first information and the second information belong to the same DCI signaling.

[0320] As an embodiment, the first information and the second information belong to two DCI signalings respectively.

[0321] As an embodiment, the first information and the second information belong to the same SCI signaling.

[0322] As an embodiment, the first information and the second information belong to two SCI signaling respectively.

[0323] As an embodiment, the second information is transmitted through a radio interface between user equipment.

[0324] As an embodiment, the second information is transmitted through a radio interface adopted by communication between the first node in the application and the second node in the application.

[0325] As an embodiment, the second information is transmitted through a radio interface of a sidelink.

[0326] As an embodiment, the second information is transmitted through a radio interface between user equipment and base station equipment.

[0327] As an embodiment, the second information is transmitted through a Uu interface.

[0328] As an embodiment, the second information is transmitted through a PC5 interface.

[0329] As an embodiment, the second information is transmitted through a wireless signal.

[0330] As an embodiment, the second information is transmitted from a base station to the first node.

[0331] As an embodiment, the second information is transmitted from the second node in the application to the first node.

[0332] As an embodiment, the first signaling is a physical layer signaling.

[0333] As an embodiment, the first signaling is broadcast.

[0334] As an embodiment, the first signaling is groupcast.

[0335] As an embodiment, the first signaling is unicast.

[0336] As an embodiment, the first signaling is transmitted through a sidelink.

[0337] As an embodiment, the first signaling is a DCI signaling.

[0338] As an embodiment, the first signaling is SCI signaling.

[0339] As an embodiment, the first signaling is transmitted through PSCCH.

[0340] As an embodiment, the first signaling is transmitted through a radio interface between user equipments.

[0341] As an embodiment, the first signaling is transmitted through a radio interface employed by the first node in the application and the second node in the application for communication.

[0342] As an embodiment, the first signaling is transmitted through a radio interface of a sidelink.

[0343] As an embodiment, the first signaling is transmitted through a radio interface between a user equipment and a base station equipment.

[0344] As an embodiment, the first signaling is transmitted through a Uu interface.

[0345] As an embodiment, the first signaling is transmitted through a PC5 interface.

[0346] As an embodiment, a target receiver of the first signaling includes the second node in the application.

[0347] As an embodiment, the first signaling is used to indicate time-frequency resources occupied by the second wireless signal.

[0348] As an embodiment, the first signaling directly indicates time-frequency resources occupied by the second wireless signal.

[0349] As an embodiment, the first signaling indirectly indicates time-frequency resources occupied by the second wireless signal.

[0350] As an embodiment, the first signaling explicitly indicates time-frequency resources occupied by the second wireless signal.

[0351] As an embodiment, the first signaling implicitly indicates time-frequency resources occupied by the second wireless signal.

[0352] As an embodiment, the first signaling indicates a first reporting setting, and the second wireless signal carries channel information corresponding to the first reporting setting.

[0353] As a sub-embodiment of the above embodiment, the channel information corresponding to the first reporting setting includes CSI.

[0354] As a sub-example of the above embodiment, the channel information corresponding to the first reporting setting comprises the first index.

[0355] As an example, the time-frequency resource occupied by the first signaling is used by the second node N01 to determine the time-frequency resource occupied by the second wireless signal.

[0356] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated, and the time-frequency resource occupied by the second wireless signal can be inferred from the time-frequency resource occupied by the first signaling.

[0357] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0358] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0359] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0360] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0361] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0362] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0363] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0364] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0365] As an example, the time-frequency resource occupied by the first signaling and the time-frequency resource occupied by the second wireless signal are associated.

[0366] Example 7

[0367] Example 7 illustrates a wireless signal transmission flowchart according to another embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 middle, First node U04 and Second node N03 communicates with each other via an air interface. (See attached...) Figure 7 In the dashed boxes F2 and F3, only one of the steps exists, while the step in dashed box 4 is optional.

[0368] for Second node N03 In step S30, a first message is sent; in step S31, a second message is sent; in step S32, a first wireless signal is sent; in step S33, a first signaling is received; and in step S34, a second wireless signal is received.

[0369] for First node U04 In step S40, the system receives first information; in step S41, it receives second information; in step S42, it receives a first wireless signal; in step S43, it sends a first signaling; and in step S44, it sends a second wireless signal.

[0370] In embodiment 7, the second wireless signal carries a first index, which is a non-negative integer; measurements of the first wireless signal and first channel information are jointly used by the first node U04 to determine the first index; the first information is used to indicate the first channel information. The second information is used by the first node U04 to determine the time-frequency resources occupied by the first wireless signal. The first signaling is used by the second node N03 to determine the time-frequency resources occupied by the second wireless signal.

[0371] As an example, box F2 is absent, box F3 is present, and the first information is transmitted from the base station to the first node.

[0372] As an example, box F2 is absent, box F3 is present, and the first information is transmitted from a node other than the first node and the second node to the first node.

[0373] As an example, box F2 exists, box F3 does not exist, and the first information is transmitted from the second node in this application to the first node.

[0374] Example 8

[0375] Example 8 illustrates a schematic diagram of how measurements of a first wireless signal and first channel information are used together to determine a first index according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0376] In embodiment 8, the first index is used to indicate a first modulation and coding scheme, and the first channel information is used to determine a first modulation and coding scheme subset, and the measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

[0377] As one embodiment, the first modulation and coding scheme comprises a modulation order and a code rate.

[0378] As one embodiment, the first index directly indicates the first modulation and coding scheme.

[0379] As one embodiment, the first index indirectly indicates the first modulation and coding scheme.

[0380] As one embodiment, the first index explicitly indicates the first modulation and coding scheme.

[0381] As one embodiment, the first index implicitly indicates the first modulation and coding scheme.

[0382] As one embodiment, the first index is a CQI.

[0383] As one embodiment, the first channel information is used to indicate the first modulation and coding scheme subset.

[0384] As one embodiment, the first channel information directly indicates the first modulation and coding scheme subset.

[0385] As one embodiment, the first channel information indirectly indicates the first modulation and coding scheme subset.

[0386] As one embodiment, the first channel information explicitly indicates the first modulation and coding scheme subset.

[0387] As one embodiment, the first channel information implicitly indicates the first modulation and coding scheme subset.

[0388] As one embodiment, the first node estimates a channel and an interference for the measurement for the first wireless signal, and generates the first modulation and coding scheme that is most suitable for the estimated channel and the estimated interference based on the estimated channel and the estimated interference and the first modulation and coding scheme subset.

[0389] As one embodiment, the first node estimates a channel and an interference for the measurement of the first wireless signal, generates the first modulation and coding scheme that best fits the estimated channel and the estimated interference based on the estimated channel and the estimated interference and the first subset of modulation and coding schemes according to a generation criterion.

[0390] As one sub-embodiment of the above embodiment, the generation criterion is at least one of a maximum transmission throughput, a maximum SINR (Signal-to-Interference-plus-Noise Ratio) or a minimum BLER (Block Error Rate).

[0391] As one sub-embodiment of the above embodiment, the generation criterion is to meet a target BLER requirement.

[0392] As one sub-embodiment of the above embodiment, the generation criterion is a modulation and coding scheme with a maximum spectral efficiency that meets a target BLER requirement.

[0393] Example 9

[0394] Embodiment 9 illustrates a schematic diagram of the first channel information being used to determine the first subset of modulation and coding schemes according to one embodiment of the present application, as shown in FIG. 9. Figure 9 As shown in FIG. 9, the first channel information is a non-negative real number no greater than 1. The Q subsets of modulation and coding schemes are one-to-one corresponding to Q ranges of values, and Q is a positive integer greater than 1. The first range of values is one range of values in the Q ranges of values to which the first channel information belongs. The first subset of modulation and coding schemes is one subset of modulation and coding schemes in the Q subsets of modulation and coding schemes corresponding to the first range of values.

[0395] As one embodiment, any value in the Q ranges of values is a non-negative real number.

[0396] As one embodiment, any value in the Q ranges of values is a non-negative real number no greater than 1.

[0397] As one embodiment, any value in the Q ranges of values is a non-negative real number no greater than 1.

[0398] As one embodiment, any two ranges of values in the Q ranges of values do not overlap.

[0399] As one embodiment, any two ranges of values in the Q ranges of values do not include a same value.

[0400] As one embodiment, any one of the Q number value ranges is a given number value range, and none of the number values in the given number value range belongs to any one of the Q number value ranges other than the given number value range.

[0401] As one embodiment, the first channel information is not less than the minimum value in the first number value range, and the first channel information is not greater than the maximum value in the first number value range.

[0402] As one embodiment, any one of the Q modulation and coding scheme subsets includes a positive integer number of modulation and coding schemes.

[0403] As one embodiment, the Q modulation and coding scheme subsets and the Q number value ranges are predefined.

[0404] As one embodiment, the method further includes:

[0405] receiving third information;

[0406] The third information is used to indicate the Q modulation and coding scheme subsets and the Q number value ranges.

[0407] As one sub-embodiment of the above embodiment, the third information explicitly indicates the Q modulation and coding scheme subsets and the Q number value ranges.

[0408] As one sub-embodiment of the above embodiment, the third information implicitly indicates the Q modulation and coding scheme subsets and the Q number value ranges.

[0409] As one sub-embodiment of the above embodiment, the third information is used to indicate P priority levels and P modulation and coding scheme sets; the P priority levels respectively and the P modulation and coding scheme sets one-to-one correspond, the P priority levels respectively and P number value range sets one-to-one correspond, and the P modulation and coding scheme sets respectively and the P number value range sets one-to-one correspond; a first modulation and coding scheme set is one of the P modulation and coding scheme sets corresponding to the first priority level, and a first number value range set is one of the P number value range sets corresponding to the first priority level; the first modulation and coding scheme set includes the Q modulation and coding scheme subsets in the present application, the first number value range set includes the Q number value ranges in the present application, and P is a positive integer greater than 1.

[0410] As one sub-embodiment of the above embodiment, the third information is a higher layer (Higher Layer) information.

[0411] As one subembodiment of the above embodiment, the third information is a physical layer information.

[0412] As one subembodiment of the above embodiment, the third information is transmitted through a physical layer signaling.

[0413] As one subembodiment of the above embodiment, the third information is transmitted through a high layer signaling.

[0414] As one subembodiment of the above embodiment, the third information includes all or part of a high layer information.

[0415] As one subembodiment of the above embodiment, the third information includes all or part of a physical layer information.

[0416] As one subembodiment of the above embodiment, the third information is transmitted through a DL-SCH (Downlink Shared Channel).

[0417] As one subembodiment of the above embodiment, the third information is transmitted through a PDSCH (Physical Downlink Shared Channel).

[0418] As one subembodiment of the above embodiment, the third information includes one or more fields of a SIB (System Information Block).

[0419] As one subembodiment of the above embodiment, the third information includes one or more fields of RMSI (Remaining System Information).

[0420] As one subembodiment of the above embodiment, the third information includes all or part of fields of an IE (Information Element) of a RRC (Radio Resource Control) layer information.

[0421] As one subembodiment of the above embodiment, the third information is transmitted through a Sidelink.

[0422] As one subembodiment of the above embodiment, the third information is transmitted through a SL-SCH (Sidelink Shared Channel).

[0423] As one sub-example of the above embodiment, the third information is transmitted through a PSSCH (Physical Sidelink Shared Channel).

[0424] As one sub-example of the above embodiment, the third information is broadcasted.

[0425] As one sub-example of the above embodiment, the third information is groupcasted.

[0426] As one sub-example of the above embodiment, the third information is unicasted.

[0427] As one sub-example of the above embodiment, the third information is cell-specific.

[0428] As one sub-example of the above embodiment, the third information is UE-specific.

[0429] As one sub-example of the above embodiment, the third information is transmitted through a PDCCH (Physical Downlink Control Channel).

[0430] As one sub-example of the above embodiment, the third information includes all or part of fields of a DCI (Downlink Control Information) signaling.

[0431] As one sub-example of the above embodiment, the third information is transmitted through a PSCCH (Physical Sidelink Control Channel).

[0432] As one sub-example of the above embodiment, the third information includes all or part of fields of a SCI (Sidelink Control Information) signaling.

[0433] As one sub-example of the above embodiment, the third information is transmitted through a radio interface between user equipments.

[0434] As one sub-example of the above embodiment, the third information is transmitted through a radio interface adopted by the first node in the present application and the second node in the present application for communication.

[0435] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted over a wireless interface of a sidelink.

[0436] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted over a radio interface between the user equipment and the base station equipment.

[0437] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted over a Uu interface.

[0438] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted over a PC5 interface.

[0439] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted over a wireless signal.

[0440] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted from a base station to the first node.

[0441] As a sub-embodiment of the above-mentioned embodiment, the third information is transmitted from the second node in the present application to the first node.

[0442] As a sub-embodiment of the above-mentioned embodiment, the third information is passed from a higher layer of the first node to a physical layer of the first node.

[0443] As a sub-embodiment of the above-mentioned embodiment, the third information is passed within the first node.

[0444] Example 10

[0445] Embodiment 10 illustrates a schematic diagram of measurements for a first wireless signal and a first modulation and coding scheme subset being jointly used to determine a first modulation and coding scheme according to an embodiment of the present application, as shown in FIG. 10. Figure 10

[0446] In Embodiment 10, the first modulation and coding scheme subset comprises N modulation and coding schemes, N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, and N is a positive integer; a spectral efficiency of the first modulation and coding scheme is not greater than a maximum value among the N spectral efficiencies.

[0447] As an embodiment, a given modulation and coding scheme comprises a modulation order and a code rate, and a spectral efficiency of the given modulation and coding scheme is equal to a product of the modulation order of the given modulation and coding scheme and the code rate of the given modulation and coding scheme.​

[0448] As one embodiment, the N is equal to 1.

[0449] As one embodiment, the N is greater than 1.

[0450] Example 11

[0451] Embodiment 11 illustrates a diagram of the first index according to one embodiment of the present application, as shown in FIG. 11. Figure 11

[0452] In Embodiment 11, the first index is used to indicate the first modulation and coding scheme in the present application from a target modulation and coding scheme set, the target modulation and coding scheme set and the first modulation and coding scheme subset are different; the target modulation and coding scheme set includes a positive integer number of modulation and coding schemes, and the first modulation and coding scheme is one of the modulation and coding schemes in the target modulation and coding scheme set.

[0453] As one embodiment, the first index is the index of the first modulation and coding scheme in the target modulation and coding scheme set.

[0454] As one embodiment, the N spectral efficiencies in the present application are used to determine the first modulation and coding scheme from the target modulation and coding scheme set.

[0455] As one embodiment, M modulation and coding schemes are all the modulation and coding schemes in the target modulation and coding scheme set that meet a target BLER requirement and have a corresponding spectral efficiency not greater than the maximum value of the N spectral efficiencies in the present application, the first modulation and coding scheme is one of the M modulation and coding schemes with the maximum spectral efficiency, and M is a positive integer.

[0456] As one embodiment, M modulation and coding schemes are all the modulation and coding schemes in the target modulation and coding scheme set that meet a target BLER requirement and have a corresponding spectral efficiency not greater than the maximum value of the N spectral efficiencies in the present application, M is a positive integer; M1 modulation and coding schemes are all the modulation and coding schemes in the M modulation and coding schemes that have a corresponding spectral efficiency not less than the minimum value of the N spectral efficiencies, M1 is a non-negative integer not greater than M; when M1 is equal to 0, the first modulation and coding scheme is one of the N modulation and coding schemes with the minimum spectral efficiency; when M1 is greater than 0, the first modulation and coding scheme is one of the M1 modulation and coding schemes with the maximum spectral efficiency.

[0457] Example 12

[0458] ​Embodiment 12 illustrates a schematic diagram of a first index according to another embodiment of the present application, as shown in FIG. 12. Figure 12

[0459] In Embodiment 12, the first index is used to indicate the first modulation and coding scheme from a subset of the first modulation and coding schemes in the present application, the subset of the first modulation and coding schemes includes N modulation and coding schemes, the first modulation and coding scheme is one of the N modulation and coding schemes, and N is a positive integer.

[0460] As an embodiment, the first index is an index of the first modulation and coding scheme in the subset of the first modulation and coding schemes.

[0461] As an embodiment, the first modulation and coding scheme is one of the subset of the first modulation and coding schemes with the maximum spectral efficiency satisfying a target BLER requirement.

[0462] As an embodiment, N is equal to 1.

[0463] As an embodiment, N is greater than 1.

[0464] Example 13

[0465] Embodiment 13 illustrates a schematic diagram of a first measurement according to an embodiment of the present application, as shown in FIG. 13. Figure 13

[0466] In Embodiment 13, the first measurement includes performing X first-type measurements in X time-frequency units respectively, X is a positive integer; the X first-type measurements are respectively used to obtain X first-type measurement values, and the X first-type measurement values are used to determine the first channel information in the present application.

[0467] As an embodiment, one first-type measurement is one measurement of power.

[0468] As an embodiment, one first-type measurement is one measurement of average power on a given time-frequency resource.

[0469] As an embodiment, one first-type measurement is one measurement of energy.

[0470] As an embodiment, one first-type measurement is one measurement of RSSI (Received Signal Strength Indicator).

[0471] ​​As one embodiment, the one first type of measurement is a measurement of a S-RSSI (Sidelink Received Signal Strength Indicator).

[0472] As one embodiment, the one first type of measurement is a measurement of a power, the measured power including a power of a measured in-channel signal, a power of an adjacent channel leakage to the measured in-channel signal, a power of a measured in-channel interference, a power of thermal noise, etc.

[0473] As one embodiment, the one first type of measurement is a measurement of an energy, the measured energy including an energy of a measured in-channel signal, an energy of an adjacent channel leakage to the measured in-channel signal, an energy of a measured in-channel interference, an energy of thermal noise, etc.

[0474] As one embodiment, the one first type of measurement is a measurement of a power, the measured power including a power of a CP (Cyclic Prefix).

[0475] As one embodiment, the one first type of measurement is a measurement of an energy, the measured energy including an energy of a CP (Cyclic Prefix).

[0476] As one embodiment, the one first type of measurement is a measurement of a power, the measured power not including a power of a CP (Cyclic Prefix).

[0477] As one embodiment, the one first type of measurement is a measurement of an energy, the measured energy not including an energy of a CP (Cyclic Prefix).

[0478] As one embodiment, the one first type of measurement includes a frequency domain filtering.

[0479] As one embodiment, the one first type of measurement includes a filtering by a higher layer filter.

[0480] As one embodiment, the one first type of measurement includes a filtering by a higher layer alpha filter.

[0481] As one embodiment, any one of the X first type of measurement values is an RSSI value.

[0482] As one embodiment, any one of the X first-type measurement values is an S-RSSI value.

[0483] As one embodiment, any one of the X first-type measurement values is a power value.

[0484] As one embodiment, any one of the X first-type measurement values is an energy value.

[0485] As one embodiment, any one of the X first-type measurement values is in units of Watt (W).

[0486] As one embodiment, any one of the X first-type measurement values is in units of milli-Watt (mW).

[0487] As one embodiment, any one of the X first-type measurement values is in units of dBm.

[0488] As one embodiment, any one of the X first-type measurement values is in units of Joule.

[0489] As one embodiment, any one of the X first-type measurement values is an average of a sum of received power in all included multi-carrier symbols within a frequency range of a time-frequency resource in which the corresponding measurement is performed.

[0490] As one embodiment, any one of the X first-type measurement values is an average of a sum of received energy in all included multi-carrier symbols within a frequency range of a time-frequency resource in which the corresponding measurement is performed.

[0491] As one embodiment, any one of the X first-type measurement values is an average of a sum of received power in part of included multi-carrier symbols within a frequency range of a time-frequency resource in which the corresponding measurement is performed.

[0492] As one embodiment, any one of the X first-type measurement values is an average of a sum of received energy in part of included multi-carrier symbols within a frequency range of a time-frequency resource in which the corresponding measurement is performed.

[0493] As one embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0494] As one embodiment, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0495] As one embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0496] As one embodiment, the multi-carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

[0497] As one embodiment, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0498] As one embodiment, the X time-frequency units are time-frequency resources other than time-frequency resources used for transmission by the first node.

[0499] As one embodiment, the X time-frequency units are all time-frequency units that can be used to obtain the first channel information.

[0500] As one embodiment, any one of the X first-type measurements includes frequency domain filtering in a frequency domain range of a time-frequency unit in which the first-type measurement is performed.

[0501] As one embodiment, any one of the X first-type measurement values is an average of a sum of received power in all multi-carrier symbols included in a frequency range of a time-frequency unit in which the corresponding first-type measurement is performed.

[0502] As one embodiment, any one of the X first-type measurement values is an average of a sum of received energy in all multi-carrier symbols included in a frequency range of a time-frequency unit in which the corresponding first-type measurement is performed.

[0503] As one embodiment, any one of the X first-type measurement values is an average of a sum of received power in part of the multi-carrier symbols included in a frequency range of a time-frequency unit in which the corresponding first-type measurement is performed.

[0504] As one embodiment, any one of the X first-type measurement values is an average of a sum of received energy in part of the multi-carrier symbols included in a frequency range of a time-frequency unit in which the corresponding first-type measurement is performed.

[0505] As one embodiment, all of the time-frequency resources in the X time-frequency units are used for at least one of the X first-type measurements.

[0506] As one embodiment, there is one time-frequency resource in the X time-frequency units that is included but not used for any of the X first-type measurements.

[0507] As one embodiment, there is one time-frequency resource in the X time-frequency units that is included but used for a measurement other than the X first-type measurements.

[0508] As one embodiment, the number of time-frequency resources included in any two of the X time-frequency units is equal, and the X is greater than 1.

[0509] As one embodiment, the frequency-domain resources included in any two of the X time-frequency units are the same, and the X is greater than 1.

[0510] As one embodiment, the number of time-frequency resources included in any two of the X time-frequency units is not equal, and the X is greater than 1.

[0511] As one embodiment, any one of the X time-frequency units occupies one sub-channel in the frequency domain and one slot in the time domain.

[0512] As one embodiment, any one of the X time-frequency units occupies a positive integer number of consecutive PRBs in the frequency domain and one slot in the time domain.

[0513] As one embodiment, any one of the X time-frequency units occupies one sub-channel in the frequency domain and one subframe in the time domain.

[0514] As one embodiment, any one of the X time-frequency units occupies a positive integer number of consecutive PRBs in the frequency domain and one subframe in the time domain.

[0515] As one embodiment, any one of the X time-frequency units occupies one sub-channel in the frequency domain and a positive integer number of consecutive multicarrier symbols in the time domain.

[0516] As an embodiment, any one of the X time-frequency units occupies a positive integer number of consecutive PRBs (Physical Resource Block) in the frequency domain and a positive integer number of consecutive multicarrier symbols in the time domain.

[0517] As an embodiment, the feature measurement value is one of the X first-type measurements, and the one of the X first-type measurements used to obtain the feature measurement value is performed in a feature time-frequency unit, the feature time-frequency unit is one of the X time-frequency units, the feature time-frequency unit includes X2 multicarrier symbols in the time domain, and the feature measurement value is an average of received power in each of the X2 multicarrier symbols in the frequency domain resource occupied by the feature time-frequency unit, X2 being a positive integer.

[0518] As a sub-embodiment of the above embodiment, the feature measurement value is any one of the X first-type measurements.

[0519] As a sub-embodiment of the above embodiment, each of the X time-frequency units includes a positive integer number of multicarrier symbols in the time domain.

[0520] As a sub-embodiment of the above embodiment, each of the X time-frequency units includes X2 multicarrier symbols that can be used in one of the X first-type measurements in the time domain.

[0521] As a sub-embodiment of the above embodiment, the feature time-frequency unit includes only the X2 multicarrier symbols in the time domain.

[0522] As a sub-embodiment of the above embodiment, the feature time-frequency unit includes multicarrier symbols other than the X2 multicarrier symbols in the time domain.

[0523] As a sub-embodiment of the above embodiment, the time domain positions of the X2 multicarrier symbols in the feature time-frequency unit are predefined.

[0524] As a sub-embodiment of the above embodiment, the time domain positions of the X2 multicarrier symbols in the feature time-frequency unit are fixed.

[0525] As a sub-embodiment of the above embodiment, the time domain positions of the X2 multicarrier symbols in the feature time-frequency unit are configurable.

[0526] As one sub-embodiment of the above-mentioned embodiment, any one of the X first-type measurements is performed within the frequency-domain resource occupied by the time-frequency unit in which the one first-type measurement is performed.

[0527] As one sub-embodiment of the above-mentioned embodiment, the feature measurement value is the average of the received power in each of the X2 multicarrier symbols within the frequency-domain resource of the feature time-frequency unit, which means that X2 power values are obtained respectively for one of the X first-type measurements of the X2 multicarrier symbols within the frequency-domain resource occupied by the feature time-frequency unit, and the feature measurement value is equal to the sum of the X2 power values divided by the positive real number obtained after the X2.

[0528] Example 14

[0529] Embodiment 14 illustrates a schematic diagram of X first-type measurement values being used to determine first channel information according to one embodiment of the present application, as shown in FIG. 14. Figure 14

[0530] In Embodiment 14, X1 of the X first-type measurement values are greater than a target threshold, and the first channel information is equal to the ratio of the X1 to the X, where the X1 is a non-negative integer not greater than the X.

[0531] As one embodiment, the target threshold is pre-defined.

[0532] As one embodiment, the target threshold is pre-configured.

[0533] As one embodiment, the target threshold is configured.

[0534] As one embodiment, X-X1 of the X first-type measurement values are not greater than the target threshold, where the X-X1 is equal to the X minus the X1.

[0535] As one embodiment, the above-mentioned method further comprises:

[0536] receiving fourth information;

[0537] wherein the fourth information is used to indicate the target threshold.

[0538] As one sub-embodiment of the above-mentioned embodiment, the fourth information directly indicates the target threshold.

[0539] As one sub-embodiment of the above-mentioned embodiment, the fourth information indirectly indicates the target threshold.​

[0540] As one subembodiment of the above embodiment, the fourth information explicitly indicates the target threshold.

[0541] As one subembodiment of the above embodiment, the fourth information implicitly indicates the target threshold.

[0542] As one subembodiment of the above embodiment, the fourth information is a Higher Layer information.

[0543] As one subembodiment of the above embodiment, the fourth information is a Physical Layer information.

[0544] As one subembodiment of the above embodiment, the fourth information is transmitted by a Physical Layer signaling.

[0545] As one subembodiment of the above embodiment, the fourth information is transmitted by a Higher Layer signaling.

[0546] As one subembodiment of the above embodiment, the fourth information includes all or part of a Higher Layer information.

[0547] As one subembodiment of the above embodiment, the fourth information includes all or part of a Physical Layer information.

[0548] As one subembodiment of the above embodiment, the fourth information is transmitted by a DL-SCH (Downlink Shared Channel).

[0549] As one subembodiment of the above embodiment, the fourth information is transmitted by a PDSCH (Physical Downlink Shared Channel).

[0550] As one subembodiment of the above embodiment, the fourth information includes one or more Fields in a SIB (System Information Block).

[0551] As one subembodiment of the above embodiment, the fourth information includes one or more Fields in a RMSI (Remaining System Information).

[0552] As one subembodiment of the above embodiment, the fourth information includes all or part of fields in an IE (Information Element) in an RRC (Radio Resource Control) layer message.

[0553] As one subembodiment of the above embodiment, the fourth information is transmitted through a sidelink.

[0554] As one subembodiment of the above embodiment, the fourth information is transmitted through an SL-SCH (Sidelink Shared Channel).

[0555] As one subembodiment of the above embodiment, the fourth information is transmitted through a PSSCH (Physical Sidelink Shared Channel).

[0556] As one subembodiment of the above embodiment, the fourth information is broadcast.

[0557] As one subembodiment of the above embodiment, the fourth information is groupcast.

[0558] As one subembodiment of the above embodiment, the fourth information is unicast.

[0559] As one subembodiment of the above embodiment, the fourth information is cell-specific.

[0560] As one subembodiment of the above embodiment, the fourth information is UE-specific.

[0561] As one subembodiment of the above embodiment, the fourth information is transmitted through a PDCCH (Physical Downlink Control Channel).

[0562] As one subembodiment of the above embodiment, the fourth information includes all or part of fields in a DCI (Downlink Control Information) signaling.

[0563] As one subembodiment of the above embodiment, the fourth information is transmitted through a PSCCH (Physical Sidelink Control Channel).

[0564] As one subembodiment of the above embodiment, the fourth information comprises all or part of fields of a SCI (Sidelink Control Information) signaling.

[0565] As one subembodiment of the above embodiment, the fourth information is transmitted through a radio interface between user equipment.

[0566] As one subembodiment of the above embodiment, the fourth information is transmitted through a radio interface adopted by communication between the first node in the application and the second node in the application.

[0567] As one subembodiment of the above embodiment, the fourth information is transmitted through a sidelink radio interface.

[0568] As one subembodiment of the above embodiment, the fourth information is transmitted through a radio interface between user equipment and base station equipment.

[0569] As one subembodiment of the above embodiment, the fourth information is transmitted through a Uu interface.

[0570] As one subembodiment of the above embodiment, the fourth information is transmitted through a PC5 interface.

[0571] As one subembodiment of the above embodiment, the fourth information is transmitted through a wireless signal.

[0572] As one subembodiment of the above embodiment, the fourth information is transmitted from a base station to the first node.

[0573] As one subembodiment of the above embodiment, the fourth information is transmitted from the second node in the application to the first node.

[0574] As one subembodiment of the above embodiment, the fourth information is delivered from a higher layer of the first node to a physical layer of the first node.

[0575] As one subembodiment of the above embodiment, the fourth information is delivered within the first node.

[0576] Example 15

[0577] Embodiment 15 illustrates a schematic diagram of a first priority being used to determine a first index according to one embodiment of the application, as shown in FIG. 15.Figure 15 is shown.

[0578] In embodiment 15, the second wireless signal carries the first index, the first priority is used to determine the first index, and second information is used to determine time-frequency resources occupied by the first wireless signal.

[0579] As an embodiment, the first priority is a PPPP (ProSe Per-Packet Priority) value.

[0580] As an embodiment, the first priority is a PPPR (ProSe Per-Packet Reliability) value.

[0581] As an embodiment, the first priority is an index of a QoS level.

[0582] As an embodiment, the first priority is an index of a 5QI (5G QoS Indicator).

[0583] As an embodiment, the first priority is an index of a PQI (PC5 QoS Indicator).

[0584] As an embodiment, the first priority is an integer.

[0585] As an embodiment, the first priority is a non-negative integer.

[0586] As an embodiment, the first priority is a positive integer.

[0587] As an embodiment, the greater the first priority, the more priority.

[0588] As an embodiment, the smaller the first priority, the more priority.

[0589] As an embodiment, the second information is used to indicate the first priority.

[0590] As an embodiment, the second information explicitly indicates the first priority.

[0591] As an embodiment, the second information implicitly indicates the first priority.

[0592] As an embodiment, the second information indicates an index of the first wireless signal, and the index of the first wireless signal is used to determine the first priority.

[0593] As an embodiment, the second information indicates an index of the first wireless signal, the index of the first wireless signal indicates configuration information of the first wireless signal, and the configuration information of the first wireless signal includes the first priority.

[0594] As an embodiment, the first priority is used to determine Q modulation and coding scheme subsets and Q value ranges, the first index is used to indicate a first modulation and coding scheme, the first channel information is used to determine a first modulation and coding scheme subset from the Q modulation and coding scheme subsets, and measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

[0595] As a sub-embodiment of the above embodiment, the first priority corresponds to the Q modulation and coding scheme subsets and the Q value ranges.

[0596] As an embodiment, P priorities respectively correspond to P modulation and coding scheme sets one by one, the P priorities respectively correspond to P value range sets one by one, and the P modulation and coding scheme sets respectively correspond to the P value range sets one by one; a first modulation and coding scheme set is one of the P modulation and coding scheme sets corresponding to the first priority, and a first value range set is one of the P value range sets corresponding to the first priority; the first modulation and coding scheme set includes the Q modulation and coding scheme subsets in the application, the first value range set includes the Q value ranges in the application, and P is a positive integer greater than 1.

[0597] Example 16

[0598] Embodiment 16 illustrates a schematic diagram of P priorities being used to determine P indexes according to an embodiment of the application, as shown in FIG. 16. Figure 16

[0599] In embodiment 16, the second wireless signal in the application carries the P indexes, the P priorities are used to determine the P indexes, the first index in the application is any one of the P indexes, and P is a positive integer greater than 1.

[0600] As an embodiment, the second wireless signal carries P indexes and P priorities.

[0601] As an embodiment, the second wireless signal carries CSI, and the CSI carried by the second wireless signal includes the P indexes and the P priorities.

[0602] ​As an embodiment, the first bit block is used to generate the second wireless signal, the first bit block comprises a first sub-block, the first sub-block indicates the P indexes and the P priorities; the first bit block comprises a positive integer number of bits, the first sub-block comprises a positive integer number of bits, and the number of bits comprised by the first sub-block is not greater than the number of bits comprised by the first bit block.

[0603] As an embodiment, the first index is any one of the P indexes, the first priority is one of the P priorities used to determine the first index, and P is a positive integer greater than 1.

[0604] As a sub-embodiment of the above embodiment, the Q modulation and coding mode subsets and the Q value ranges all correspond to only the first priority of the P priorities.

[0605] As a sub-embodiment of the above embodiment, the first priority is used to determine Q modulation and coding mode subsets and Q value ranges, the first index is used to indicate a first modulation and coding mode, the first channel information is used to determine a first modulation and coding mode subset from the Q modulation and coding mode subsets, and the measurement for the first wireless signal and the first modulation and coding mode subset are jointly used to determine the first modulation and coding mode.

[0606] As a sub-embodiment of the above embodiment, the first priority corresponds to the Q modulation and coding mode subsets and the Q value ranges.

[0607] As a sub-embodiment of the above embodiment, the P priorities one-to-one correspond to P modulation and coding mode sets respectively, the P priorities one-to-one correspond to P value range sets respectively, and the P modulation and coding mode sets one-to-one correspond to the P value range sets respectively.

[0608] Example 17

[0609] Embodiment 17 illustrates a schematic diagram of the relationship of P priorities, P modulation and coding mode sets, a first priority, and Q modulation and coding mode subsets according to an embodiment of the present application, as shown in FIG. 17. Figure 17

[0610] ​In Embodiment 17, the P priorities respectively correspond to the P modulation and coding scheme sets one by one, the P priorities respectively correspond to the P numerical range sets one by one, and the P modulation and coding scheme sets respectively correspond to the P numerical range sets one by one; a first modulation and coding scheme set is one of the P modulation and coding scheme sets corresponding to the first priority, and a first numerical range set is one of the P numerical range sets corresponding to the first priority; the first modulation and coding scheme set includes the Q modulation and coding scheme subset in the application, and the first numerical range set includes the Q numerical range in the application, and P is a positive integer greater than 1.

[0611] As one sub-embodiment of the above-mentioned embodiment, any two of the P priorities are different.

[0612] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is a PPPP (ProSe Per-Packet Priority) value.

[0613] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is a PPRR (ProSe Per-Packet Reliability) value.

[0614] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is an index of a QoS level.

[0615] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is an index of a 5QI (5G QoS Indicator, 5th Generation QoS Indicator).

[0616] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is an index of a PQI (PC5 QoS Indicator, PC5 QoS Indicator).

[0617] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is an integer.

[0618] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is a non-negative integer.

[0619] As one sub-embodiment of the above-mentioned embodiment, any one of the P priorities is a positive integer.

[0620] As one subembodiment of the above embodiment, the greater any one of the P priorities is, the more priority it indicates.

[0621] As one subembodiment of the above embodiment, the smaller any one of the P priorities is, the more priority it indicates.

[0622] As one subembodiment of the above embodiment, any one of the P modulation and coding scheme sets comprises a positive integer number of modulation and coding scheme subsets, and any one of the P modulation and coding scheme subsets comprises a positive integer number of modulation and coding schemes.

[0623] As one subembodiment of the above embodiment, any one of the P number range sets comprises a positive integer number of number ranges.

[0624] As one subembodiment of the above embodiment, any one of the numbers in any one of the P number ranges is a non-negative real number.

[0625] As one subembodiment of the above embodiment, any one of the numbers in any one of the P number ranges is a non-negative real number no greater than 1.

[0626] Example 18

[0627] Embodiment 18 illustrates a structural block diagram of a processing apparatus in a first node device, as shown in FIG. 12. Figure 18 In FIG. 12, the first node device processing apparatus 1200 comprises a first transmitter 1201 and a first receiver 1202. Figure 18

[0628] The first receiver 1202 performs a first measurement or receives first information; receives a first wireless signal;

[0629] The first transmitter 1201 transmits a second wireless signal;

[0630] In Embodiment 18, the second wireless signal carries a first index, the first index is a non-negative integer; the measurement for the first wireless signal and the first channel information are jointly used to determine the first index; the first measurement is used to determine the first channel information, or the first information is used to indicate the first channel information.

[0631] As one embodiment, the first index is used to indicate a first modulation and coding scheme, the first channel information is used to determine a first modulation and coding scheme subset, and the measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme. ​

[0632] As an embodiment, the first modulation and coding scheme subset includes N modulation and coding schemes, N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, and N is a positive integer; the spectral efficiency of the first modulation and coding scheme is not greater than a maximum value among the N spectral efficiencies.

[0633] As an embodiment, the first measurement includes performing X first-type measurements respectively in X time-frequency units, X is a positive integer; the X first-type measurements are respectively used to obtain X first-type measurement values, and the X first-type measurement values are used to determine the first channel information.

[0634] As an embodiment, a first priority is used to determine the first index, first signaling is used to determine time-frequency resources occupied by the first wireless signal, and the first signaling is used to determine the first priority; or the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

[0635] As an embodiment, the first receiver 1202 further receives second information; wherein the second information is used to determine time-frequency resources occupied by the first wireless signal.

[0636] As an embodiment, the first transmitter 1201 further transmits first signaling; wherein the first signaling is used to determine time-frequency resources occupied by the second wireless signal.

[0637] As an embodiment, the first node device 1200 is a user equipment.

[0638] As an embodiment, the first node device 1200 is a relay node.

[0639] As an embodiment, the first node device 1200 is a base station.

[0640] As an embodiment, the first node device 1200 is a vehicle-mounted communication device.

[0641] As an embodiment, the first node device 1200 is a user equipment supporting V2X communication.

[0642] As an embodiment, the first node device 1200 is a relay node supporting V2X communication.

[0643] As an embodiment, the first transmitter 1201 includes the apparatus for transmitting a wireless signal in the foregoing embodiments. Figure 5at least one of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467.

[0644] As one embodiment, the first transmitter 1201 includes at least the first five of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200. Figure 5 As one embodiment, the first transmitter 1201 includes at least the first five of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200.

[0645] As one embodiment, the first transmitter 1201 includes at least the first four of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200. Figure 5 As one embodiment, the first transmitter 1201 includes at least the first four of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200.

[0646] As one embodiment, the first transmitter 1201 includes at least the first three of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200. Figure 5 As one embodiment, the first transmitter 1201 includes at least the first three of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200.

[0647] As one embodiment, the first transmitter 1201 includes at least the first two of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200. Figure 5 As one embodiment, the first transmitter 1201 includes at least the first two of the antennas 452, transmitters 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460, and data source 467 in the apparatus 1200.

[0648] As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467. Figure 5 As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467.

[0649] As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467. Figure 5 As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467.

[0650] As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467. Figure 5 As one embodiment, the first receiver 1202 includes at least one of the antennas 452, receivers 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460, and data source 467.

[0651] As one embodiment, the first receiver 1202 includes the appendix to this application. Figure 5 At least three of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0652] As one embodiment, the first receiver 1202 includes the appendix to this application. Figure 5 At least two of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0653] Example 19

[0654] Example 19 illustrates a structural block diagram of a processing device in a second node device, as shown in the attached diagram. Figure 19 As shown. In the appendix Figure 19 In the process, the second node device processing unit 1300 includes a second receiver 1301 and a second transmitter 1302.

[0655] The second transmitter 1302 transmits the first wireless signal;

[0656] The second receiver 1301 receives the second wireless signal;

[0657] In embodiment 19, the second wireless signal carries a first index, which is a non-negative integer; measurements of the first wireless signal and first channel information are used together to determine the first index.

[0658] As one embodiment, the transmitting node of the second wireless signal performs a first measurement, which is used to determine the first channel information.

[0659] As an example, the second transmitter 1302 also transmits first information; wherein the first information is used to indicate the first channel information.

[0660] As an example, the first index is used to indicate the first modulation and coding scheme, the first channel information is used to determine a subset of the first modulation and coding scheme, and the measurement of the first wireless signal and the subset of the first modulation and coding scheme are used together to determine the first modulation and coding scheme.

[0661] As one embodiment, a first priority is used to determine the first index, a first signaling is used to determine the time-frequency resources occupied by the first wireless signal, and the first signaling is used to determine the first priority; or, the second wireless signal carries P indices, and the P priorities are respectively used to determine the P indices, where the first index is any one of the P indices, and P is a positive integer greater than 1.

[0662] As an example, the second transmitter 1302 also transmits second information; wherein the second information is used to determine the time-frequency resources occupied by the first wireless signal.

[0663] As one embodiment, the second receiver 1301 also receives a first signaling; wherein the first signaling is used to determine the time-frequency resources occupied by the second wireless signal.

[0664] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476 are at least one of them.

[0665] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476 are at least the first five of the following:

[0666] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5 At least four of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0667] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5 At least three of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0668] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5 At least two of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0669] As one embodiment, the second receiver 1301 includes the appendix to this application. Figure 5at least one of the antennas 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475, and the memory 476.

[0670] As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476. Figure 5 As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476.

[0671] As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476. Figure 5 As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476.

[0672] As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476. Figure 5 As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476.

[0673] As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476. Figure 5 As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476.

[0674] As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476. Figure 5 As one embodiment, the second transmitter 1302 includes at least one of the antennas 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, the controller / processor 475, and the memory 476.

[0675] As one embodiment, the second node device 1300 is a user equipment.

[0676] As one embodiment, the second node device 1300 is a base station.

[0677] As one embodiment, the second node device 1300 is a relay node.

[0678] As one embodiment, the second node device 1300 is a user equipment supporting V2X communication.

[0679] As one embodiment, the second node device 1300 is a base station device supporting V2X communication.

[0680] As an embodiment, the second node device 1300 is a relay node supporting V2X communication.

[0681] Those skilled in the art can understand that all or part of the steps in the above method can be instructed by a program to relevant hardware, and the program can be stored in a computer readable storage medium, such as a read-only memory, a hard disk, an optical disk, etc. Alternatively, all or part of the steps of the above embodiment can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of combination of software and hardware. The first node device in the present application includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a network card, a low-power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a flying object, an airplane, a drone, a remote control airplane, and the like. The second node device in the present application includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a network card, a low-power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a flying object, an airplane, a drone, a remote control airplane, and the like. The user equipment or UE or terminal in the present application includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a network card, a low-power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a flying object, an airplane, a drone, a remote control airplane, and the like. The base station device or base station or network side device in the present application includes but is not limited to a macro cellular base station, a micro cellular base station, a home base station, a relay base station, an eNB, a gNB, a transmission reception point TRP, a GNSS, a relay satellite, a satellite base station, an air base station, and the like.

[0682] The above describes only the preferred embodiments of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node device for wireless communication, the first node device comprising: Comprising: a first receiver configured to perform a first measurement, wherein the first measurement comprises measuring a channel busy ratio (CBR) to determine a signal congestion level: receiving a first wireless signal, the first wireless signal comprising a sidelink channel state information reference signal (SL-CSI-RS); receiving first information, wherein the first information comprises all or part of a domain of sidelink control information (SCI) signaling and is used to indicate first channel information; a first transmitter configured to transmit a second wireless signal over a physical sidelink shared channel (PSSCH); wherein the second wireless signal carries a first index, the first index being one of a plurality of CQI (Channel Quality Indicator) indexes, the first index being a non-negative integer, each CQI index corresponding to a different traffic priority, and each CQI index being determined based on a channel busy ratio (CBR) and a modulation and coding scheme (MCS) subset corresponding to the respective priority; wherein the measurement for the first wireless signal and the first channel information are jointly used to determine the first index, the first channel information being a non-negative real number determined based on the measured channel busy ratio (CBR).

2. The first node device of claim 1, wherein, The first index is used to indicate a first modulation and coding scheme, and the first channel information is used to determine a first modulation and coding scheme subset, and the measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

3. The first node device of claim 1 or 2, wherein, The first channel information indicates a first modulation and coding scheme subset, the first modulation and coding scheme subset comprising a positive integer number of modulation and coding schemes; the first index is used to indicate the first modulation and coding scheme from a target modulation and coding scheme set, the target modulation and coding scheme set being different from the first modulation and coding scheme subset; the target modulation and coding scheme set comprises a positive integer number of modulation and coding schemes, the first modulation and coding scheme being one of the target modulation and coding scheme set; the first modulation and coding scheme subset comprises N modulation and coding schemes, N spectral efficiencies being spectral efficiencies of the N modulation and coding schemes respectively, N being a positive integer; a spectral efficiency of the first modulation and coding scheme is not greater than a maximum of the N spectral efficiencies.

4. The first node device of claim 2, wherein, The first index is used to indicate the first modulation and coding scheme from the first modulation and coding scheme subset, the first modulation and coding scheme subset comprising N modulation and coding schemes, the first modulation and coding scheme being one of the N modulation and coding schemes; N spectral efficiencies being spectral efficiencies of the N modulation and coding schemes respectively, N being a positive integer; a spectral efficiency of the first modulation and coding scheme is not greater than a maximum of the N spectral efficiencies.

5. The first node device of any of claims 1 to 4, wherein, The first bit block is used to generate the second wireless signal, the first bit block comprises a first sub-block, the first sub-block indicates the first index, the first bit block comprises a positive integer number of bits, the first sub-block comprises a positive integer number of bits; the first bit block further comprises bits other than the first sub-block, the first sub-block comprises a smaller number of bits than the first bit block; the first bit block indicates CSI (Channel State Information), and the first sub-block indicates CQI; the CSI comprises at least one of RI (Rank indicator), PMI (Precoding Matrix Indicator), CQI or CRI (Csi-reference signal Resource Indicator).

6. The first node device of any of claims 1 to 5, wherein, The first receiver further receives second information; wherein the second information is used to determine the time-frequency resources occupied by the first wireless signal; the second information comprises a part of a domain of an SCI (Sidelink Control Information) signaling; the first information and the second information belong to the same SCI signaling; the time domain resources occupied by the second information and the time domain resources occupied by the first wireless signal belong to the same time slot; the frequency domain resources occupied by the second information and the frequency domain resources occupied by the first wireless signal belong to the same BWP (BandWidth Part).

7. The first node device of any of claims 1-6, wherein, The first transmitter further transmits first signaling; wherein the first signaling is used to determine the time-frequency resources occupied by the second wireless signal; the first signaling is an SCI signaling; the time domain resources occupied by the first signaling and the time domain resources occupied by the second wireless signal belong to the same time slot; the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second wireless signal belong to the same BWP.

8. The first node device of any of claims 1-7, wherein, The first measurement comprises performing X first-type measurements in X time-frequency units respectively, X being a positive integer; the X first-type measurements are respectively used to obtain X first-type measurement values, and the X first-type measurement values are used to determine the first channel information.

9. The first node device of any of claims 1-8, wherein, A first priority is used to determine the first index, and second information is used to determine the time-frequency resources occupied by the first wireless signal, and the second information is used to determine the first priority; Or, the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

10. A second node device for wireless communication, the second node device comprising: Comprise: a second transmitter, configured to transmit a first wireless signal and first information, the first wireless signal comprising a sidelink channel state information reference signal (SL CSI-RS); the first information comprising all or part of a domain of sidelink control information (SCI) signaling and being used to indicate first channel information; a second receiver, configured to receive a second wireless signal through a physical sidelink shared channel (PSSCH), wherein the second wireless signal carries a first index, the first index being one of a plurality of CQI (Channel Quality Indicator) indexes, the first index being a non-negative integer, each CQI index corresponding to a different service priority, and each CQI index being determined based on a channel busy ratio (CBR) and a modulation and coding scheme (MCS) subset corresponding to the respective priority; wherein a measurement performed by a transmitting node of the second wireless signal on the first wireless signal and the first channel information, which is a non-negative real number determined based on a measured channel busy ratio (CBR), are jointly used to determine the first index; a first measurement performed by the transmitting node of the second wireless signal, including measuring the CBR, is used to determine a channel congestion level.

11. The second node device of claim 10, wherein, the first index is used to indicate a first modulation and coding scheme, and the first channel information is used to determine a first modulation and coding scheme subset, the measurement performed by the transmitting node of the second wireless signal on the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

12. The second node device of claim 10 or 11, wherein, the first channel information indicates a first modulation and coding scheme subset, the first modulation and coding scheme subset comprising a positive integer number of modulation and coding schemes; the first index is used to indicate the first modulation and coding scheme from a target modulation and coding scheme set, the target modulation and coding scheme set being different from the first modulation and coding scheme subset; the target modulation and coding scheme set comprises a positive integer number of modulation and coding schemes, the first modulation and coding scheme being one of the target modulation and coding scheme set; the first modulation and coding scheme subset comprises N modulation and coding schemes, N spectral efficiencies being spectral efficiencies of the N modulation and coding schemes respectively, N being a positive integer; a spectral efficiency of the first modulation and coding scheme is not greater than a maximum of the N spectral efficiencies.

13. The second node device of claim 11, wherein, the first index is used to indicate the first modulation and coding scheme from the first modulation and coding scheme subset, the first modulation and coding scheme subset comprising N modulation and coding schemes, the first modulation and coding scheme being one of the N modulation and coding schemes; N spectral efficiencies being spectral efficiencies of the N modulation and coding schemes respectively, N being a positive integer; a spectral efficiency of the first modulation and coding scheme is not greater than a maximum of the N spectral efficiencies.

14. The second node device of any of claims 10 to 13, wherein, The first bit block is used to generate the second wireless signal, the first bit block includes a first sub-block, the first sub-block indicates the first index, the first bit block includes a positive integer number of bits, and the first sub-block includes a positive integer number of bits; the first bit block further includes bits other than the first sub-block, the number of bits included in the first sub-block is less than the number of bits included in the first bit block; the first bit block indicates CSI (Channel State Information), and the first sub-block indicates CQI; the CSI includes at least one of RI (Rank indicator), PMI (Precoding Matrix Indicator), CQI or CRI (Csi-reference signal Resource Indicator).

15. The second node device of any of claims 10 to 14, wherein, The second transmitter also transmits second information; wherein the second information is used to determine the time-frequency resources occupied by the first wireless signal; the second information includes a part of the domain of an SCI (Sidelink Control Information) signaling; the first information and the second information belong to the same SCI signaling; the time domain resources occupied by the second information and the time domain resources occupied by the first wireless signal belong to the same time slot; the frequency domain resources occupied by the second information and the frequency domain resources occupied by the first wireless signal belong to the same BWP (BandWidth Part).

16. The second node device of any of claims 10-15, wherein, The second receiver also receives first signaling; wherein the first signaling is used to determine the time-frequency resources occupied by the second wireless signal; the first signaling is an SCI signaling; the time domain resources occupied by the first signaling and the time domain resources occupied by the second wireless signal belong to the same time slot; the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second wireless signal belong to the same BWP.

17. The second node device of any of claims 10-16, wherein, The first measurement includes performing X times of first type measurement in X time-frequency units respectively, X is a positive integer; the X times of first type measurement are respectively used to obtain X first type measurement values, and the X first type measurement values are used to determine the first channel information.

18. The second node device of any of claims 10-17, wherein, A first priority is used to determine the first index, second information is used to determine the time-frequency resources occupied by the first wireless signal, and the second information is used to determine the first priority; Or, the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

19. A method in a first node used for wireless communication, characterized by, Including: Performing a first measurement, or receiving first information, wherein the first measurement includes measuring a channel busy ratio (CBR) to determine a signal congestion degree; Receiving a first wireless signal, the first wireless signal including a sidelink channel state information reference signal (SLCSI-RS); receiving first information, wherein the first information comprises all or part of fields of sidelink control information (SCI) signaling and is used to indicate first channel information; transmitting a second wireless signal through a physical sidelink shared channel (PSSCH), wherein the second wireless signal carries a first index, the first index is one of a plurality of CQI (Channel Quality Indicator) indexes, the first index is a non-negative integer, each CQI index corresponds to a different service priority, and each CQI index is determined based on a channel busy ratio (CBR) and a modulation and coding scheme (MCS) subset corresponding to the corresponding priority. wherein the measurement for the first wireless signal and the first channel information are jointly used to determine the first index, and the first channel information is a non-negative real number determined based on a measured channel busy ratio (CBR).

20. The method of claim 19, wherein, The first index is used to indicate a first modulation and coding scheme, and the first channel information is used to determine a first modulation and coding scheme subset, and the measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

21. The method of claim 19 or 20, wherein, The first channel information indicates a first modulation and coding scheme subset, the first modulation and coding scheme subset includes a positive integer number of modulation and coding schemes; the first index is used to indicate the first modulation and coding scheme from a target modulation and coding scheme set, the target modulation and coding scheme set and the first modulation and coding scheme subset are different; the target modulation and coding scheme set includes a positive integer number of modulation and coding schemes, the first modulation and coding scheme is one of the target modulation and coding scheme set; the first modulation and coding scheme subset includes N modulation and coding schemes, N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, N is a positive integer; the spectral efficiency of the first modulation and coding scheme is not greater than the maximum value in the N spectral efficiencies.

22. The method of claim 20, wherein, The first index is used to indicate the first modulation and coding scheme from the first modulation and coding scheme subset, the first modulation and coding scheme subset includes N modulation and coding schemes, the first modulation and coding scheme is one of the N modulation and coding schemes; N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, N is a positive integer; the spectral efficiency of the first modulation and coding scheme is not greater than the maximum value in the N spectral efficiencies.

23. The method of any one of claims 19-22, wherein, The first bit block is used to generate the second wireless signal, the first bit block includes a first sub-block, the first sub-block indicates the first index, the first bit block includes a positive integer number of bits, and the first sub-block includes a positive integer number of bits; the first bit block further includes bits other than the first sub-block, the number of bits included in the first sub-block is less than the number of bits included in the first bit block; the first bit block indicates CSI (Channel State Information), and the first sub-block indicates CQI; the CSI includes at least one of RI (Rank indicator), PMI (Precoding Matrix Indicator), CQI or CRI (Csi-reference signal Resource Indicator).

24. The method of any one of claims 19-23, wherein, Comprise: Receiving second information; Wherein, the second information is used to determine the time-frequency resources occupied by the first wireless signal; The second information includes a part of the domain of an SCI (Sidelink Control Information) signaling; the first information and the second information belong to the same SCI signaling; the time domain resources occupied by the second information and the time domain resources occupied by the first wireless signal belong to the same time slot; the frequency domain resources occupied by the second information and the frequency domain resources occupied by the first wireless signal belong to the same BWP (BandWidth Part).

25. The method of any one of claims 19-24, wherein, Comprise: Sending first signaling; Wherein, the first signaling is used to determine the time-frequency resources occupied by the second wireless signal; The first signaling is an SCI signaling; the time domain resources occupied by the first signaling and the time domain resources occupied by the second wireless signal belong to the same time slot; the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second wireless signal belong to the same BWP.

26. The method of any one of claims 19-25, wherein, The first measurement includes performing X times of first type measurement in X time-frequency units respectively, X is a positive integer; the X times of first type measurement are respectively used to obtain X first type measurement values, and the X first type measurement values are used to determine the first channel information.

27. The method of any one of claims 19-26, wherein, A first priority is used to determine the first index, second information is used to determine the time-frequency resources occupied by the first wireless signal, and the second information is used to determine the first priority; Or, the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

28. A method in a second node used for wireless communication, characterized by: Comprise: Sending a first wireless signal and first information, the first wireless signal includes a sidelink channel state information reference signal (SLCSI-RS), and the first information includes all or part of the domain of a sidelink control information (SCI) signaling and is used to indicate first channel information; Receiving a second wireless signal through a physical sidelink shared channel (PSSCH), wherein the second wireless signal carries a first index, the first index is one of a plurality of CQI (Channel Quality Indicator) indexes, the first index is a non-negative integer, each CQI index corresponds to a different traffic priority, and each CQI index is determined based on a channel busy ratio (CBR) and a modulation and coding scheme (MCS) subset corresponding to the respective priority; wherein a measurement for the first wireless signal and first channel information performed by a transmitting node of the second wireless signal are jointly used to determine the first index, the first channel information is a non-negative real number determined based on the measured channel busy ratio (CBR); a first measurement including the CBR performed by the transmitting node of the second wireless signal is used to determine a channel signal congestion level.

29. The method of claim 28, wherein, The first index is used to indicate a first modulation and coding scheme, the first channel information is used to determine a first modulation and coding scheme subset, the measurement for the first wireless signal and the first modulation and coding scheme subset are jointly used to determine the first modulation and coding scheme.

30. The method of claim 28 or 29, wherein, The first channel information indicates a first modulation and coding scheme subset, the first modulation and coding scheme subset includes a positive integer number of modulation and coding schemes; the first index is used to indicate the first modulation and coding scheme from a target modulation and coding scheme set, the target modulation and coding scheme set and the first modulation and coding scheme subset are different; the target modulation and coding scheme set includes a positive integer number of modulation and coding schemes, the first modulation and coding scheme is one of the target modulation and coding scheme set; the first modulation and coding scheme subset includes N modulation and coding schemes, N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, N is a positive integer; the spectral efficiency of the first modulation and coding scheme is not greater than a maximum value in the N spectral efficiencies.

31. The method of claim 29, wherein, The first index is used to indicate the first modulation and coding scheme from the first modulation and coding scheme subset, the first modulation and coding scheme subset includes N modulation and coding schemes, the first modulation and coding scheme is one of the N modulation and coding schemes; N spectral efficiencies are spectral efficiencies of the N modulation and coding schemes respectively, N is a positive integer; the spectral efficiency of the first modulation and coding scheme is not greater than a maximum value in the N spectral efficiencies.

32. The method of any one of claims 28-31, wherein, The first bit block is used to generate the second wireless signal, the first bit block includes a first sub-block, the first sub-block indicates the first index, the first bit block includes a positive integer number of bits, and the first sub-block includes a positive integer number of bits; the first bit block further includes bits other than the first sub-block, the number of bits included in the first sub-block is less than the number of bits included in the first bit block; the first bit block indicates CSI (Channel State Information), and the first sub-block indicates CQI; the CSI includes at least one of RI (Rank indicator), PMI (Precoding Matrix Indicator), CQI or CRI (Csi-reference signal Resource Indicator).

33. The method of any one of claims 28-32, wherein, Comprise: sending second information; wherein the second information is used to determine the time-frequency resources occupied by the first wireless signal; the second information includes a part of a domain of an SCI (Sidelink Control Information) signaling; the first information and the second information belong to the same SCI signaling; the time domain resources occupied by the second information and the time domain resources occupied by the first wireless signal belong to the same time slot; the frequency domain resources occupied by the second information and the frequency domain resources occupied by the first wireless signal belong to the same BWP (BandWidth Part).

34. The method of any one of claims 28-33, wherein, Comprise: receiving first signaling; wherein the first signaling is used to determine the time-frequency resources occupied by the second wireless signal; the first signaling is an SCI signaling; the time domain resources occupied by the first signaling and the time domain resources occupied by the second wireless signal belong to the same time slot; the frequency domain resources occupied by the first signaling and the frequency domain resources occupied by the second wireless signal belong to the same BWP.

35. The method of any one of claims 28-34, wherein, The first measurement includes performing X first type measurements in X time-frequency units respectively, X is a positive integer; the X first type measurements are respectively used to obtain X first type measurement values, and the X first type measurement values are used to determine the first channel information.

36. The method of any one of claims 28-35, wherein, A first priority is used to determine the first index, second information is used to determine the time-frequency resources occupied by the first wireless signal, and the second information is used to determine the first priority; Or, the second wireless signal carries P indexes, P priorities are respectively used to determine the P indexes, the first index is any one of the P indexes, and P is a positive integer greater than 1.

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