A method and device used in a node for wireless communication

Abstract

The present application discloses a method and apparatus used in a node for wireless communication. The node first receives a first information block, and then monitors X control channel candidates in a target time-frequency resource pool; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool. The present application makes the blind detection method of the control channel more flexible and improves the overall performance of the system by establishing a connection between the distribution of the control channel candidates and the time window.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and more particularly to a transmission scheme and device related to an unlicensed spectrum in wireless communication. Background Art

[0002] In the future, the application scenarios of wireless communication systems will become more and more diversified, and different application scenarios will put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new radio (NR) (or Fifth Generation, 5G) technology, and the WI (Work Item) of NR was passed at the 3GPP RAN #75 plenary meeting, and the standardization work of NR began.

[0003] A key technology of NR is to support beam-based signal transmission. Its main application scenario is to enhance the coverage performance of NR devices working in millimeter wave frequency bands (e.g., frequency bands greater than 6GHz). In addition, beam-based transmission technology is also needed in low frequency bands (e.g., frequency bands less than 6GHz) to support large-scale antennas. Through weighted processing of the antenna array, the RF signal will form a strong beam in a specific spatial direction, while the signal is weak in other directions. At the same time, with the development of terminal equipment, when the terminal is equipped with multiple panels (Panel), the terminal can receive or transmit in multiple beam directions at the same time. In addition, in NR, the number of blind detections based on one SCS (Subcarrier Spacing) and the number of independent CCE (Control Channel Elements) in a BWP (Bandwidth Part) in a slot (slot) of the terminal is upper bounded; and the terminal can dynamically share blind detections between multiple CORESETs (Control Resource Sets) and search space sets (Search Space Sets) to improve the possibility of scheduling. When a terminal conducts wireless communication in an unlicensed spectrum, whether the beam can be adopted by the base station and used for communication is also subject to whether the channel sensing is successful. The above scenario will make blind detection on the terminal side more complicated and need to be redesigned. Summary of the invention

[0004] In the scenario of large-scale antenna combined with unlicensed spectrum based on beam transmission, because of the increase in beams, the terminal needs to blindly detect PDCCH (Phys ical Downlink Control Channel) in the search space set corresponding to multiple beams. At present, in NR, PDCCH candidates in the search space set are semi-statically configured through high-level signaling. When the result of the base station LBT (Li sten-before talk) is uncertain, the PDCCH candidates on the actually configured search space set do not need to be blindly detected, and the reserved blind detection capability will be wasted.

[0005] In view of the above application scenarios and requirements, the present application discloses a solution. It should be noted that, in the absence of conflict, the embodiments of the first node of the present application and the features in the embodiments can be applied to the base station, and the embodiments of the second node of the present application and the features in the embodiments can be applied to the terminal. At the same time, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0006] Furthermore, although the original intention of this application is for the scenario of unlicensed spectrum, this application can also be used in the scenario of licensed spectrum. Furthermore, although the original intention of this application is for the scenario of multi-beam under massive antenna, this application is also applicable to the scenario of non-massive antenna, and achieves the technical effect similar to that under massive antenna. In addition, the use of a unified solution for different scenarios (including but not limited to the communication scenario between the terminal and the base station) can also help reduce hardware complexity and cost.

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

[0008] receiving a first information block;

[0009] Monitoring X control channel candidates in a target time-frequency resource pool, where X is a positive integer greater than 1;

[0010] The first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0011] As an embodiment, a technical feature of the above method is that: the first node dynamically adjusts the distribution of the X control channel candidates in the first time-frequency resource set and the second time-frequency resource set according to the relative position relationship between the first time window and the second time window; when the first time-frequency resource set and the second time-frequency resource set belong to two overlapping COTs (Channel Occupy Time), the first node blindly detects PDCCH in both the first time-frequency resource set and the second time-frequency resource set to increase the possibility of being scheduled; when only one time-frequency resource set of the first time-frequency resource set and the second time-frequency resource set belongs to the COT, the first node blindly detects PDCCH only in the time-frequency resource set belonging to the COT, thereby reducing power consumption and reducing the probability of false detection.

[0012] According to one aspect of the present application, the first time-frequency resource set and the second time-frequency resource set are respectively associated with a first candidate parameter and a second candidate parameter; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

[0013] As an embodiment, a technical feature of the above method is that the first time-frequency resource set and the second time-frequency resource set correspond to two different beamforming vectors respectively to adapt to a multi-beam scenario.

[0014] According to one aspect of the present application, the first time window and the second time window overlap in the time domain, at least one control channel alternative among the X control channel alternatives belongs to the first time-frequency resource set, and at least another control channel alternative among the X control channel alternatives belongs to the second time-frequency resource set.

[0015] According to one aspect of the present application, the first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; the first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0016] According to one aspect of the present application, the first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly related to the ratio of K1 to K, and X2 is linearly related to the ratio of K2 to K.

[0017] As an embodiment, a technical feature of the above method is that: the maximum number of blind detections configured in the first time-frequency resource set and the second time-frequency resource set exceeds the actual capacity of the first node; when the first time-frequency resource set and the second time-frequency resource set both belong to COT, the first node needs to scale the number of blind detections allocated to the first time-frequency resource set and the number of blind detections allocated to the second time-frequency resource set to ensure that they do not exceed the capacity of the first node.

[0018] According to one aspect of the present application, it includes:

[0019] Send target information;

[0020] Among them, the target information is used to indicate that the first node supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools among the K1 control resource set pools.

[0021] As an embodiment, a technical feature of the above method is that the first node reports its own capability to inform the network that the first node supports simultaneous transmission of multiple panels.

[0022] According to one aspect of the present application, it includes:

[0023] receiving a first signaling;

[0024] The first signaling is used to determine the first time window.

[0025] According to one aspect of the present application, it includes:

[0026] receiving a second signaling;

[0027] The second signaling is used to determine the second time window.

[0028] According to one aspect of the present application, it includes:

[0029] receiving target signaling in a first control channel candidate;

[0030] Receiving a target signal in a target time-frequency resource block;

[0031] The first control channel candidate is one of the X control channel candidates; and the target signaling is used to indicate the target time-frequency resource block.

[0032] According to one aspect of the present application, it includes:

[0033] receiving target signaling in a first control channel candidate;

[0034] Sending a target signal in a target time-frequency resource block;

[0035] The first control channel candidate is one of the X control channel candidates; and the target signaling is used to indicate the target time-frequency resource block.

[0036] According to one aspect of the present application, the target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0037] As an embodiment, a technical feature of the above method is that the first parameter set is related to both the first type parameter set and the second type parameter set, further improving the flexibility of the beam used by the target signal, that is, the flexibility of the beam used by the data signal.

[0038] The present application discloses a method in a second node for wireless communication, comprising:

[0039] Sending a first information block;

[0040] Sending target signaling in a target time-frequency resource pool;

[0041] The target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

[0042] According to one aspect of the present application, the first time-frequency resource set and the second time-frequency resource set are respectively associated with a first candidate parameter and a second candidate parameter; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

[0043] According to one aspect of the present application, the first time window and the second time window overlap in the time domain, at least one control channel alternative among the X control channel alternatives belongs to the first time-frequency resource set, and at least another control channel alternative among the X control channel alternatives belongs to the second time-frequency resource set.

[0044] According to one aspect of the present application, the first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; the first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0045] According to one aspect of the present application, the first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly related to the ratio of K1 to K, and X2 is linearly related to the ratio of K2 to K.

[0046] According to one aspect of the present application, it includes:

[0047] Receive target information;

[0048] Among them, the target information is used to indicate that the sender of the target information supports M1 control resource set pools, and M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools in the K1 control resource set pools.

[0049] According to one aspect of the present application, it includes:

[0050] Sending a first signaling;

[0051] The first signaling is used to determine the first time window.

[0052] According to one aspect of the present application, it includes:

[0053] Sending a second signaling;

[0054] The second signaling is used to determine the second time window.

[0055] According to one aspect of the present application, it includes:

[0056] determining a first control channel candidate;

[0057] Sending target signal;

[0058] The first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; and the target signaling is used to indicate the target time-frequency resource block.

[0059] According to one aspect of the present application, it includes:

[0060] determining a first control channel candidate;

[0061] Receive target signal;

[0062] The first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; and the target signaling is used to indicate the target time-frequency resource block.

[0063] According to one aspect of the present application, the target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0064] The present application discloses a first node for wireless communication, comprising:

[0065] A first transceiver receives a first information block;

[0066] A second transceiver monitors X control channel candidates in a target time-frequency resource pool, where X is a positive integer greater than 1;

[0067] The first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0068] The present application discloses a second node for wireless communication, comprising:

[0069] A third transceiver sends a first information block;

[0070] a fourth transceiver, sending a target signaling in a target time-frequency resource pool;

[0071] The target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

[0072] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0073] -. The first node dynamically adjusts the distribution of the X control channel candidates in the first time-frequency resource set and the second time-frequency resource set according to the relative position relationship between the first time window and the second time window; when the first time-frequency resource set and the second time-frequency resource set belong to two overlapping COTs respectively, the first node blindly detects PDCCH in both the first time-frequency resource set and the second time-frequency resource set to increase the possibility of being scheduled; when only one time-frequency resource set of the first time-frequency resource set and the second time-frequency resource set belongs to COT, the first node blindly detects PDCCH only in the time-frequency resource set belonging to COT, thereby reducing power consumption and reducing the probability of false detection;

[0074] -. The first time-frequency resource set and the second time-frequency resource set correspond to two different beamforming vectors respectively to adapt to the multi-beam scenario;

[0075] -.The maximum number of blind detections configured in the first time-frequency resource set and the second time-frequency resource set exceeds the actual capacity of the first node; when the first time-frequency resource set and the second time-frequency resource set both belong to COT, the first node needs to trim the number of blind detections allocated to the first time-frequency resource set and the number of blind detections allocated to the second time-frequency resource set to ensure that they do not exceed the capacity of the first node. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0077] Figure 1 A processing flow chart of a first node according to an embodiment of the present application is shown;

[0078] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0079] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0080] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0081] Figure 5 A flow chart showing a first information block according to an embodiment of the present application;

[0082] Figure 6 A flow chart showing a target signal according to an embodiment of the present application is shown;

[0083] Figure 7 A flow chart showing a target signal according to another embodiment of the present application;

[0084] Figure 8 A flowchart of first signaling and second signaling according to an embodiment of the present application is shown;

[0085] Fig. 9 A schematic diagram showing a first time-frequency resource pool and a second time-frequency resource pool according to an embodiment of the present application is shown;

[0086] Fig.10 A schematic diagram showing a first time window and a second time window according to an embodiment of the present application is shown;

[0087] Fig.11 A schematic diagram showing a first time window and a second time window according to another embodiment of the present application is shown;

[0088] Fig.12 A schematic diagram showing a first time window and a second time window according to yet another embodiment of the present application is shown;

[0089] Fig.13 A schematic diagram showing a first type parameter set and a second type parameter set according to an embodiment of the present application is shown;

[0090] Fig.14 A schematic diagram showing target signaling and target signals according to an embodiment of the present application is shown;

[0091] Fig.15 A structural block diagram of a processing device in a first node according to an embodiment of the present application is shown;

[0092] Fig.16A structural block diagram of a processing device in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0093] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0094] Example 1

[0095] Embodiment 1 illustrates a processing flow chart of a first node, as shown in the attached Figure 1 As shown in the attached Figure 1 In the illustrated 100, each box represents a step. In Embodiment 1, the first node in the present application first receives a first information block in step 101, and then monitors X control channel candidates in the target time-frequency resource pool in step 102, where X is a positive integer greater than 1.

[0096] In Embodiment 1, the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0097] As an embodiment, the first information block is used to indicate the time domain resources occupied by the first time-frequency resource set.

[0098] As an embodiment, the first information block is used to indicate the frequency domain resources occupied by the first time-frequency resource set.

[0099] As an embodiment, the first information block is used to indicate the time domain resources occupied by the second time-frequency resource set.

[0100] As an embodiment, the first information block is used to indicate the frequency domain resources occupied by the second time-frequency resource set.

[0101] As an embodiment, the first information block is carried via RRC (Radio Resource Control) signaling.

[0102] As an embodiment, the first information block is carried by a MAC (Medium Access Control) CE (Control Element).

[0103] As an embodiment, the first information block includes one or more fields in ControlResourceSet in TS 38.331.

[0104] As an embodiment, the first information block includes one or more fields in SearchSpace in TS 38.331.

[0105] As an embodiment, the first information block includes one or more fields in PDCCH-Config in TS 38.331.

[0106] As an embodiment, the name of the first information block includes Panel.

[0107] As an embodiment, the name of the first information block includes CORESET.

[0108] As an embodiment, the name of the first information block includes SearchSpace.

[0109] As an embodiment, the name of the first information block includes PDCCH.

[0110] As an embodiment, the first time-frequency resource set is a CORESET.

[0111] As an embodiment, the first time-frequency resource set corresponds to a CORESET ID (Identity).

[0112] As an embodiment, the first time-frequency resource set belongs to a CORESET Pool.

[0113] As an embodiment, the first time-frequency resource set is a Search Space Set.

[0114] As an embodiment, the first time-frequency resource set corresponds to a Search Space ID (Identity).

[0115] As an embodiment, the first time-frequency resource set belongs to a Search Space Set Group.

[0116] As an embodiment, the second time-frequency resource set is a CORESET.

[0117] As an embodiment, the second time-frequency resource set corresponds to a CORESET ID (Identity).

[0118] As an embodiment, the second time-frequency resource set belongs to a CORESET Pool.

[0119] As an embodiment, the second time-frequency resource set is a Search Space Set.

[0120] As an embodiment, the second time-frequency resource set corresponds to a Search Space ID.

[0121] As an embodiment, the second time-frequency resource set belongs to a Search Space Set Group.

[0122] As an embodiment, the time domain resources occupied by the first time-frequency resource set and the time domain resources occupied by the second time-frequency resource set are overlapping.

[0123] As an embodiment, there is at least one OFDM (Orthogonal Frequency Division Multiplexing) symbol that is jointly occupied by the first time-frequency resource set and the second time-frequency resource set.

[0124] As an embodiment, the frequency domain resources occupied by the first time-frequency resource set and the frequency domain resources occupied by the second time-frequency resource set are orthogonal.

[0125] As an embodiment, the first time-frequency resource set occupies a positive integer number of REs (Resource Elements) greater than 1.

[0126] As an embodiment, the second time-frequency resource set occupies a positive integer number of REs greater than 1.

[0127] As an embodiment, the X control channel candidates are respectively X PDCCH candidates (candidates).

[0128] As an embodiment, the X control channel candidates are X PSCCH (Physical Sidelink Control Channel) candidates.

[0129] As an embodiment, the first time window is a COT.

[0130] As an embodiment, the first time window is a time slot in a COT.

[0131] As an embodiment, the first time window is a mini-slot in a COT.

[0132] As an embodiment, the first time window is a sub-slot in a COT.

[0133] As an embodiment, the first time window includes a positive integer number of consecutive time slots greater than 1.

[0134] As an embodiment, the second time window is a COT.

[0135] As an embodiment, the second time window is a time slot in a COT.

[0136] As an embodiment, the second time window is a mini-time slot in a COT.

[0137] As an embodiment, the second time window is a sub-time slot in a COT.

[0138] As an embodiment, the second time window includes a positive integer number of consecutive time slots greater than 1.

[0139] As an embodiment, the above sentence states that the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain. This means that the target time-frequency resource pool includes a first time-frequency resource subset, the first time-frequency resource subset and the first time-frequency resource set occupy the same frequency domain resources, a part of the time domain resources occupied by the first time-frequency resource set belongs to the first time window, and the time domain resources occupied by the first time-frequency resource subset are the time domain resources in the first time-frequency resource set that are located in the first time window.

[0140] As an embodiment, the target time-frequency resource pool described in the above sentence includes the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, which means that the time domain resources occupied by the first time-frequency resource set all belong to the first time window, and the target time-frequency resource pool includes the first time-frequency resource set.

[0141] As an embodiment, the above sentence states that the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain. This means that the target time-frequency resource pool includes a second time-frequency resource subset, the second time-frequency resource subset and the second time-frequency resource set occupy the same frequency domain resources, part of the time domain resources occupied by the second time-frequency resource set belongs to the second time window, and the time domain resources occupied by the second time-frequency resource subset are the time domain resources in the second time-frequency resource set that are located in the second time window.

[0142] As an embodiment, the target time-frequency resource pool described in the above sentence includes the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain, which means that the time domain resources occupied by the second time-frequency resource set all belong to the second time window, and the target time-frequency resource pool includes the second time-frequency resource set.

[0143] As an embodiment, the frequency domain resources included in the target time-frequency resource pool belong to unlicensed spectrum.

[0144] As an embodiment, the sender of the first information block is a second node, and the second node needs to perform channel monitoring before sending a wireless signal in the target time-frequency resource pool.

[0145] As a sub-embodiment of this embodiment, the channel monitoring includes LBT.

[0146] As a sub-embodiment of this embodiment, the channel monitoring includes channel sensing (Sensing).

[0147] As an embodiment, the frequency domain resources occupied by the target time-frequency resource pool are between 450 MHz and 6 GHz.

[0148] As an embodiment, the frequency domain resources occupied by the target time-frequency resource pool are between 24.25 GHz and 52.6 GHz.

[0149] As an embodiment, the first node detects a physical layer signaling in one control channel candidate among the X control channel candidates.

[0150] As an embodiment, the first node detects a physical layer signaling from a plurality of control channel candidates among the X control channel candidates.

[0151] As a sub-embodiment of the above two embodiments, the physical layer signaling includes the target signaling in this application.

[0152] As an embodiment, the meaning of the above sentence that the first time window and the second time window are different includes: there is at least one OFDM symbol that does not belong to the first time window and the second time window at the same time.

[0153] As an embodiment, the meaning of the above sentence that the first time window and the second time window are different includes: the first time window and the second time window do not overlap in the time domain.

[0154] Example 2

[0155] Example 2 illustrates a schematic diagram of a network architecture, as shown in the attached Figure 2 shown.

[0156] Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may 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 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks that provide circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations towards UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive node), or some other suitable term. gNB 203 provides an access point to EPC / 5G-CN 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB 203 is connected to EPC / 5G-CN 210 via an S1 / NG interface.EPC / 5G-CN 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF214, S-GW (Service Gateway) 212 and P-GW (Packet Data Network Gateway) 213. MME / AMF / UPF211 is a control node that handles signaling between UE201 and EPC / 5G-CN 210. Generally, MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW212, which itself is connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. The Internet service 230 includes operator-compatible Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0157] As an embodiment, the UE201 corresponds to the first node in the present application.

[0158] As an embodiment, the UE 201 supports Multi-Panel wireless transmission.

[0159] As an embodiment, the UE 201 supports wireless communication on an unlicensed spectrum.

[0160] As an embodiment, the UE201 supports wireless communication on multiple beams simultaneously.

[0161] As an embodiment, the gNB203 corresponds to the second node in this application.

[0162] As an embodiment, the gNB203 supports Multi-Panel wireless transmission.

[0163] As an embodiment, the gNB203 supports wireless communications on an unlicensed spectrum.

[0164] As an embodiment, the gNB203 supports wireless communication on multiple beams simultaneously.

[0165] As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

[0166] As an embodiment, the wireless link between the UE201 and the gNB203 is a cellular link.

[0167] As an embodiment, the first node in the present application is a terminal within the coverage of the gNB203.

[0168] Example 3

[0169] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 between the first communication node device (UE, gNB or RSU in V2X) and the second communication node device (gNB, UE or RSU in V2X) is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and the PDCP sublayer 304 also provides support for inter-zone mobility of the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC 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 layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, 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 mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services.Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

[0170] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0171] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0172] As an embodiment, the PDCP 304 of the second communication node device is used to generate the scheduling of the first communication node device.

[0173] As an embodiment, the PDCP 354 of the second communication node device is used to generate the scheduling of the first communication node device.

[0174] As an embodiment, the first information block in the present application is generated in the PHY301 or PHY351.

[0175] As an embodiment, the first information block in the present application is generated by the MAC302 or MAC352.

[0176] As an embodiment, the first information block in the present application is generated in the RRC306.

[0177] As an embodiment, the first signaling in the present application is generated in the PHY301 or PHY351.

[0178] As an embodiment, the second signaling in the present application is generated in the PHY301 or PHY351.

[0179] As an embodiment, the target information in the present application is generated by the MAC302 or MAC352.

[0180] As an embodiment, the target information in the present application is generated in the RRC306.

[0181] As an embodiment, the target signaling in the present application is generated in the PHY301 or PHY351.

[0182] As an embodiment, the target signal in the present application is generated by the MAC302 or MAC352.

[0183] As an embodiment, the target signal in the present application is generated in the RRC306.

[0184] As an embodiment, the second node in the present application is a terminal device.

[0185] As an embodiment, the first node in the present application is a terminal device.

[0186] As an embodiment, V2X (Vehicle-to-Everything) communication is performed between the first node and the second node.

[0187] Example 4

[0188] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0189] The first 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.

[0190] The second 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 .

[0191] In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0192] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0193] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0194] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0195] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first information block; monitors X control channel alternatives in a target time-frequency resource pool, where X is a positive integer greater than 1; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

[0196] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block; monitoring X control channel candidates in a target time-frequency resource pool, wherein X is a positive integer greater than 1; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0197] As an embodiment, the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 device at least: sends a first information block, sends a target signaling in a target time-frequency resource pool; the target time-frequency resource pool includes X control channel candidates, and X is a positive integer greater than 1; the target signaling occupies one control channel candidate among the X control channel candidates; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0198] As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first information block, sending a target signaling in a target time-frequency resource pool; the target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

[0199] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0200] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0201] As an embodiment, the first communication device 450 is a UE.

[0202] As an embodiment, the first communication device 450 is a terminal.

[0203] As an embodiment, the second communication device 410 is a base station.

[0204] As an embodiment, the second communication device 410 is a network device.

[0205] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 are used to receive the first information block; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller / processor 475 are used to send the first information block.

[0206] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 are used to monitor X control channel alternatives in the target time-frequency resource pool, where X is a positive integer greater than 1.

[0207] As an embodiment, at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send target signaling in the target time-frequency resource pool.

[0208] As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller / processor 459 are used to send target information; and at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller / processor 475 are used to receive target information.

[0209] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 are used to receive the first signaling; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller / processor 475 are used to send the first signaling.

[0210] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 are used to receive the second signaling; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller / processor 475 are used to send the second signaling.

[0211] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller / processor 459 are used to receive target signaling in the first control channel alternative.

[0212] As an embodiment, at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to determine the first control channel candidate.

[0213] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to receive the target signal in the target time-frequency resource block; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send the target signal in the target time-frequency resource block.

[0214] As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller / processor 459 are used to send a target signal in a target time-frequency resource block; and at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller / processor 475 are used to receive a target signal in a target time-frequency resource block.

[0215] Example 5

[0216] Embodiment 5 illustrates a flow chart of the first information, as shown in the attached Figure 5 As shown in the attached Figure 5 In the embodiment, the first node U1 and the second node N2 communicate with each other via a wireless link. It is particularly noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

[0217] for The first node U1, sending target information in step S10, receiving a first information block in step S11, monitoring X control channel candidates in a target time-frequency resource pool in step S12, and receiving target signaling in the first control channel candidate in step S13.

[0218] for The second node N2 , receiving target information in step S20, sending a first information block in step S21, determining a first control channel candidate in step S22, and sending target signaling in a target time-frequency resource pool in step S23.

[0219] In Embodiment 5, X is a positive integer greater than 1; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool; the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target information is used to indicate that the first node U1 supports M1 control resource set pools, and M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set belong to two different control resource set pools among the K1 control resource set pools, respectively.

[0220] As an embodiment, the meaning of the above sentence determining the first control channel candidate includes: determining the position of the first control channel candidate among the X control channel candidates.

[0221] As an embodiment, the above sentence determining the first control channel candidate means including: determining which control channel candidate among the X control channel candidates is the first control channel candidate.

[0222] As an embodiment, the meaning of the above sentence determining the first control channel alternative includes: determining the time-frequency position of the first control channel alternative.

[0223] As an embodiment, the meaning of the above sentence determining the first control channel alternative includes: determining the aggregation level adopted by the target signaling.

[0224] As an embodiment, the first time-frequency resource set and the second time-frequency resource set are respectively associated with a first candidate parameter and a second candidate parameter; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

[0225] As a sub-embodiment of this embodiment, the first information block is used to explicitly indicate the first candidate parameter, and the first candidate parameter is associated with the first time-frequency resource set.

[0226] As a sub-embodiment of this embodiment, the first information block is used to explicitly indicate the second candidate parameter, and the second candidate parameter is associated with the second time-frequency resource set.

[0227] As a sub-embodiment of this embodiment, the first candidate parameter is a TCI-State (Transmission Configuration Indication-State).

[0228] As a sub-embodiment of this embodiment, the first candidate parameter corresponds to a TCI-StateID (Transmission Configuration Indication State Identifier).

[0229] As a sub-embodiment of this embodiment, the first candidate parameter corresponds to a first candidate signal.

[0230] As a subsidiary embodiment of this sub-embodiment, the first candidate signal includes CSI-RS (Channel-State Information Reference Signals).

[0231] As a subsidiary embodiment of this sub-embodiment, the first candidate signal includes SSB (SS / PBCH Block, synchronization signal / physical broadcast channel block).

[0232] As a subsidiary embodiment of this sub-embodiment, the first candidate signal is transmitted on a CSI-RS resource.

[0233] As a subsidiary embodiment of this sub-embodiment, the first candidate signal is transmitted on an SSB resource.

[0234] As a sub-embodiment of this embodiment, the second candidate parameter is a TCI-State.

[0235] As a sub-embodiment of this embodiment, the second candidate parameter corresponds to a TCI-StateID.

[0236] As a sub-embodiment of this embodiment, the second candidate parameter corresponds to a second candidate signal.

[0237] As a subsidiary embodiment of this sub-embodiment, the second candidate signal includes a CSI-RS.

[0238] As a subsidiary embodiment of this sub-embodiment, the second candidate signal includes SSB.

[0239] As a subsidiary embodiment of this sub-embodiment, the second candidate signal is transmitted on a CSI-RS resource.

[0240] As a subsidiary embodiment of this sub-embodiment, the second candidate signal is transmitted on an SSB resource.

[0241] As a sub-embodiment of this embodiment, the above sentence that the first candidate parameter is used for receiving the signal in the first time-frequency resource set means that the first candidate parameter is used to determine the spatial reception parameter of the signal in the first time-frequency resource set.

[0242] As a sub-embodiment of this embodiment, the above sentence that the first candidate parameter is used for receiving the signal in the first time-frequency resource set means that the first candidate parameter is used to indicate a first reference signal, and the spatial reception parameter of the first reference signal is used to determine the spatial reception parameter of the signal in the first time-frequency resource set.

[0243] As a sub-embodiment of this embodiment, the meaning of the above sentence that the first candidate parameter is used for receiving the signal in the first time-frequency resource set includes: the first candidate parameter is used to indicate a first reference signal, and the first reference signal is QCL (Quasi Co-located) with the signal in the first time-frequency resource set.

[0244] As a sub-embodiment of this embodiment, the above sentence that the second candidate parameter is used for receiving the signal in the second time-frequency resource set means that the second candidate parameter is used to determine the spatial reception parameter of the signal in the second time-frequency resource set.

[0245] As a sub-embodiment of this embodiment, the above sentence that the second candidate parameter is used for receiving the signal in the second time-frequency resource set means that the second candidate parameter is used to indicate a second reference signal, and the spatial reception parameter of the second reference signal is used to determine the spatial reception parameter of the signal in the second time-frequency resource set.

[0246] As a sub-embodiment of this embodiment, the meaning of the above sentence that the second candidate parameter is used for receiving the signal in the second time-frequency resource set includes: the second candidate parameter is used to indicate a second reference signal, and the second reference signal is QCL with the signal in the second time-frequency resource set.

[0247] As a sub-embodiment of this embodiment, the reception of the signal in the first set of time-frequency resources includes blind detection of control channel candidates in the X control channel candidates that are located in the first set of time-frequency resources.

[0248] As a sub-embodiment of this embodiment, the reception of the signal in the second set of time-frequency resources includes blind detection of a control channel candidate in the X control channel candidates that is located in the second set of time-frequency resources.

[0249] As an embodiment, the first time window and the second time window overlap in the time domain, at least one control channel alternative among the X control channel alternatives belongs to the first time-frequency resource set, and at least another control channel alternative among the X control channel alternatives belongs to the second time-frequency resource set.

[0250] As a sub-embodiment of this embodiment, the above sentence that the first time window and the second time window overlap in the time domain means that the first time window and the second time window include at least the same OFDM symbol in the time domain.

[0251] As a sub-embodiment of this embodiment, the above sentence that the first time window and the second time window overlap in the time domain means that: the first time window and the second time window are the same time slot.

[0252] As a sub-embodiment of this embodiment, the first time window and the second time window overlap in the time domain, and the X control channel candidates are distributed in the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain and the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0253] As a sub-embodiment of this embodiment, the first time window and the second time window overlap in the time domain, the first node blindly detects the X control signaling candidates in the first time-frequency resource subset and the second time-frequency resource subset, the first time-frequency resource subset is the part of the time-frequency resources included in the first time-frequency resource set that belongs to the first time window in the time domain, and the second time-frequency resource subset is the part of the time-frequency resources included in the second time-frequency resource set that belongs to the second time window in the time domain.

[0254] As an embodiment, the first time window and the second time window are orthogonal in the time domain; any control channel alternative among the X control channel alternatives belongs to the first time-frequency resource subset, or any control channel alternative among the X control channel alternatives belongs to the second time-frequency resource subset; the first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0255] As a sub-embodiment of this embodiment, the above sentence that the first time window and the second time window are orthogonal in the time domain means that there is no OFDM symbol that belongs to both the first time window and the second time window.

[0256] As a sub-embodiment of this embodiment, the first time window belongs to a COT, the second time window does not belong to a COT, and any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset.

[0257] As a sub-embodiment of this embodiment, the first time window does not belong to a COT, the second time window belongs to a COT, and any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset.

[0258] As a sub-embodiment of this embodiment, the first time window is earlier than the second time window in the time domain, and any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset.

[0259] As a sub-embodiment of this embodiment, the first time window is later than the second time window in the time domain, and any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset.

[0260] As a sub-embodiment of this embodiment, when any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, the first node U1 will not perform blind detection on the X control signaling candidates in the second time-frequency resource set.

[0261] As a sub-embodiment of this embodiment, when any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset, the first node U1 will not perform blind detection on the X control signaling candidates in the first time-frequency resource set.

[0262] As a sub-embodiment of this embodiment, when any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, the first node U1 will not perform blind detection on the X control signaling candidates in the second time-frequency resource set.

[0263] As an embodiment, the first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly related to the ratio of K1 to K, and X2 is linearly related to the ratio of K2 to K.

[0264] As a sub-embodiment of this embodiment, the X1 is smaller than the K1.

[0265] As a sub-embodiment of this embodiment, the X1 is not greater than the K1.

[0266] As a sub-embodiment of this embodiment, X2 is smaller than K2.

[0267] As a sub-embodiment of this embodiment, X2 is not greater than K2.

[0268] As a sub-embodiment of this embodiment, the first time-frequency resource set is configured with the K1 control channel candidates through RRC signaling.

[0269] As a sub-embodiment of this embodiment, the second time-frequency resource set is configured with the K2 control channel options through RRC signaling.

[0270] As a sub-embodiment of this embodiment, X1 is equal to the integer part of K1*X / K.

[0271] As a sub-embodiment of this embodiment, X1 is not greater than K1*X / K.

[0272] As a sub-embodiment of this embodiment, X2 is equal to the integer part of K2*X / K.

[0273] As a sub-embodiment of this embodiment, X2 is not greater than K2*X / K.

[0274] As a sub-embodiment of this embodiment, the K1 control channel candidates are indexed sequentially, and the X1 control channel candidates are X1 control channel candidates with smaller indexes among the K1 control channel candidates.

[0275] As a sub-embodiment of this embodiment, the K1 control channel alternatives include K1_L control channel alternatives with an aggregation level equal to L, and L is equal to one of 1, 2, 4, 8 or 16, and the K1_L is a positive integer not greater than the K1, and the M1_L control channel alternatives among the K1_L control channel alternatives belong to the X1 control channel alternatives, and the M1_L is the maximum integer not greater than (K1_L*K1 / K).

[0276] As a sub-embodiment of this embodiment, the K2 control channel candidates are indexed sequentially, and the X2 control channel candidates are X2 control channel candidates with smaller indexes among the K2 control channel candidates.

[0277] As a sub-embodiment of this embodiment, the K2 control channel alternatives include K2_L control channel alternatives with an aggregation level equal to L, and L is equal to one of 1, 2, 4, 8 or 16, and the K2_L is a positive integer not greater than the K2, and the M2_L control channel alternatives among the K2_L control channel alternatives belong to the X2 control channel alternatives, and the M2_L is the maximum integer not greater than (K2_L*K2 / K).

[0278] As an embodiment, M1 is equal to 2.

[0279] As an embodiment, the M1 control resource set pools are respectively M1 CORESET Pools.

[0280] As an embodiment, the first node includes M1 panels, and the M1 panels correspond to the M1 control resource set pools respectively.

[0281] As an embodiment, the target information is carried via RRC signaling.

[0282] As an embodiment, the target information is used to indicate the multi-antenna capability of the first node U1.

[0283] As an embodiment, the target information includes all or part of the fields in UE-NR-Capability in TS 38.331.

[0284] As an embodiment, the first time window includes time domain resources occupied by the first time-frequency resource set, and the first time-frequency resource set is equal to the first time-frequency resource subset.

[0285] As an embodiment, the second time window includes time domain resources occupied by the second time-frequency resource set, and the second time-frequency resource set is equal to the second time-frequency resource subset.

[0286] Example 6

[0287] Embodiment 6 illustrates a flow chart of a target signal, as shown in the attached Figure 6 As shown in the attached Figure 6 In the embodiment, the first node U3 communicates with the second node N4 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application; in the absence of conflict, the embodiment and sub-embodiment in embodiment 6 can be used in embodiments 5, 7, and 8; conversely, in the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in embodiments 5, 7, and 8 can be used in embodiment 6.

[0288] for First node U3 , in step S30, a target signal is received in a target time-frequency resource block.

[0289] for Second node N4 , in step S40, the target signal is sent in the target time-frequency resource block.

[0290] In Example 6, the target signaling is used to indicate the target time-frequency resource block.

[0291] As an embodiment, the target signaling is physical layer signaling.

[0292] As an embodiment, the physical layer channel occupied by the target signaling is PDCCH.

[0293] As an embodiment, the target signaling is a DCI (Downlink Control Information).

[0294] As an embodiment, the target time-frequency resource pool includes Y1 CCEs (Control Channel Element), any control channel candidate among the X control channel candidates occupies one or more CCEs, and Y1 is a positive integer greater than 1.

[0295] As an embodiment, the target signaling is a downlink authorization.

[0296] As an embodiment, the physical layer channel occupied by the target signal is PDSCH (Physical Downlink Shared Channel).

[0297] As an embodiment, the transmission channel occupied by the target signal is DL-SCH (Downlink Shared Channel).

[0298] As an embodiment, the physical layer channel occupied by the target signaling is PSCCH (Physical Sidelink Control Channel).

[0299] As an embodiment, the target signaling is a SCI (Sidelink Control Information).

[0300] As an embodiment, the physical layer channel occupied by the target signal is PSSCH (Physical Sidelink Shared Channel).

[0301] As an embodiment, the transmission channel occupied by the target signal is SL-SCH (Sidelink Shared Channel).

[0302] As an embodiment, the target signaling is used to schedule the target signal.

[0303] As an embodiment, the CRC (Cyclic Redundancy Check) included in the target signaling is scrambled by the C-RNTI (Cell Radio Network Temporary Identifier) ​​allocated to the first node.

[0304] As an embodiment, the given control channel alternative is any control channel alternative among the X1 control channel alternatives. For the given control channel alternative, the first node uses the C-RNTI assigned to the first node to descramble the CRC demodulated by the given control channel alternative to determine whether the given control channel alternative carries the target signaling.

[0305] As an embodiment, the target signaling is used to indicate a first parameter from a first parameter set, and the first parameter is used for receiving the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0306] As a sub-embodiment of this embodiment, the above sentence that the first parameter is used for receiving the target signal means that the first parameter is used to determine the spatial reception parameter of the target signal.

[0307] As a sub-embodiment of this embodiment, the above sentence that the first parameter is used for receiving the target signal means that the first parameter is used to indicate a first reference signal, and the spatial reception parameter of the first reference signal is used to determine the spatial reception parameter of the target signal.

[0308] As a sub-embodiment of this embodiment, the above sentence that the first parameter is used for receiving the target signal means that the first parameter is used to indicate a first reference signal, and the first reference signal is QCL with the target signal.

[0309] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal includes a CSI-RS.

[0310] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal includes SSB.

[0311] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal is sent on a CSI-RS resource.

[0312] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal is sent on an SSB resource.

[0313] As a sub-embodiment of this embodiment, the QCL in the present application is one of QCL-TypeA, QCL-TypeB, QCL-TypeC, or QCL-TypeD in TS 38.214.

[0314] As a sub-embodiment of this embodiment, the first parameter set includes Q1 parameters, the first parameter is a parameter in the first parameter set, and Q1 is a positive integer greater than 1.

[0315] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters is a TCI-State.

[0316] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters corresponds to a TCI-StateID.

[0317] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters corresponds to a wireless signal, and the wireless signal includes a CSI-RS.

[0318] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters corresponds to a wireless signal, and the wireless signal is sent on a CSI-RS resource.

[0319] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters corresponds to a wireless signal, and the wireless signal includes SSB.

[0320] As a subsidiary embodiment of this sub-embodiment, any one of the Q1 parameters corresponds to a wireless signal, and the wireless signal is sent on an SSB resource.

[0321] As a sub-embodiment of this embodiment, the first time-frequency resource pool belongs to the first time window in the time domain, and the first parameter set is the first type of parameter set.

[0322] As a sub-embodiment of this embodiment, the first time-frequency resource pool does not belong to the first time window in the time domain, and the first parameter set is the second type parameter set.

[0323] As a sub-embodiment of this embodiment, the first-category parameter set includes Q2 first-category parameters, and Q2 is a positive integer greater than 1.

[0324] As a subsidiary embodiment of this sub-embodiment, any first-category parameter among the Q2 first-category parameters is a TCI-State.

[0325] As a subsidiary embodiment of this sub-embodiment, any one of the Q2 first-category parameters corresponds to a TCI-StateID.

[0326] As a subsidiary embodiment of this sub-embodiment, any one of the Q2 first-category parameters corresponds to a wireless signal, and the wireless signal includes a CSI-RS.

[0327] As a subsidiary embodiment of this sub-embodiment, any one of the Q2 first-category parameters corresponds to a wireless signal, and the wireless signal is sent on a CSI-RS resource.

[0328] As a subsidiary embodiment of this sub-embodiment, any first-category parameter among the Q2 first-category parameters corresponds to a wireless signal, and the wireless signal includes SSB.

[0329] As a subsidiary embodiment of this sub-embodiment, any number of the Q2 first-category parameters corresponds to a wireless signal, and the wireless signal is sent on an SSB resource.

[0330] As a subsidiary embodiment of this sub-embodiment, Q2 is equal to Q1, and the Q2 first-category parameters are respectively Q1 parameters included in the first parameter set.

[0331] As a sub-embodiment of this embodiment, the second-category parameter set includes Q3 second-category parameters, and Q3 is a positive integer greater than 1.

[0332] As a subsidiary embodiment of this sub-embodiment, any second-category parameter among the Q3 second-category parameters is a TCI-State.

[0333] As a subsidiary embodiment of this sub-embodiment, any second-category parameter among the Q3 second-category parameters corresponds to a TCI-StateID.

[0334] As a subsidiary embodiment of this sub-embodiment, any second-category parameter among the Q3 second-category parameters corresponds to a wireless signal, and the wireless signal includes a CSI-RS.

[0335] As a subsidiary embodiment of this sub-embodiment, any second-category parameter among the Q3 second-category parameters corresponds to a wireless signal, and the wireless signal is sent on a CSI-RS resource.

[0336] As a subsidiary embodiment of this sub-embodiment, any second-category parameter among the Q3 second-category parameters corresponds to a wireless signal, and the wireless signal includes SSB.

[0337] As a subsidiary embodiment of this sub-embodiment, any number of the Q3 second-category parameters corresponds to a wireless signal, and the wireless signal is sent on an SSB resource.

[0338] As a subsidiary embodiment of this sub-embodiment, Q3 is equal to Q1, and the Q3 second-category parameters are respectively Q1 parameters included in the first parameter set.

[0339] As a sub-embodiment of this embodiment, the target signal is a wireless signal.

[0340] As a sub-embodiment of this embodiment, the target signal is a baseband signal.

[0341] As a sub-embodiment of this embodiment, the first type of parameter set is configured through RRC signaling.

[0342] As a sub-embodiment of this embodiment, the second type of parameter set is configured through RRC signaling.

[0343] As a sub-embodiment of this embodiment, the first type of parameter set and the second type of parameter set are configured on the data channel scheduled by the first time-frequency resource pool through RRC signaling.

[0344] As a sub-embodiment of this embodiment, the first type of parameter set and the second type of parameter set are configured through one or more fields in the PDSCH-config in TS38.331.

[0345] As a sub-embodiment of this embodiment, the first type of parameter set and the second type of parameter set are configured through one or more fields in PSSCH-config in TS38.331.

[0346] Example 7

[0347] Embodiment 7 illustrates another flow chart of a target signal, as shown in the attached Figure 7 As shown in the attached Figure 7 In the embodiment, the first node U5 communicates with the second node N6 via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application; in the absence of conflict, the embodiment and sub-embodiment in embodiment 7 can be used in embodiments 5, 6, and 8; conversely, in the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in embodiments 5, 6, and 8 can be used in embodiment 7.

[0348] for First node U5 , in step S50, the target signal is sent in the target time-frequency resource block.

[0349] for Second node N6 , in step S60, a target signal is received in a target time-frequency resource block.

[0350] In Example 7, the target signaling is used to indicate the target time-frequency resource block.

[0351] As an embodiment, the target signaling is an uplink authorization.

[0352] As an embodiment, the physical layer channel occupied by the target signal is PUSCH (Physical Uplink Shared Channel).

[0353] As an embodiment, the transmission channel occupied by the target signal is UL-SCH (Uplink Shared Channel).

[0354] As an embodiment, the target signaling is used to indicate a first parameter from a first parameter set, and the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0355] As a sub-embodiment of this embodiment, the meaning of the above sentence that the first parameter is used for sending the target signal includes: the first parameter is used to determine the spatial sending parameter of the target signal.

[0356] As a sub-embodiment of this embodiment, the above sentence that the first parameter is used for sending the target signal means that the first parameter is used to indicate a first reference signal, and the spatial reception parameter of the first reference signal is used to determine the spatial transmission parameter of the target signal.

[0357] As a sub-embodiment of this embodiment, the above sentence that the first parameter is used for sending the target signal means that the first parameter is used to indicate a first reference signal, and the spatial transmission parameter of the first reference signal is used to determine the spatial transmission parameter of the target signal.

[0358] As a sub-embodiment of this embodiment, the meaning of the above sentence that the first parameter is used for sending the target signal includes: the first parameter is used to indicate a first reference signal, and the first reference signal is QCL with the target signal.

[0359] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal includes an SRS (Sounding Reference Signal, sounding reference signal).

[0360] As a subsidiary embodiment of the above two sub-embodiments, the first reference signal is sent on an SRS resource.

[0361] As a sub-embodiment of this embodiment, the first type of parameter set and the second type of parameter set are configured through one or more fields in the PUSCH-config in TS38.331.

[0362] Example 8

[0363] Embodiment 8 illustrates a flowchart of a first signaling and a second signaling, as shown in the attached figure. Figure 8 As shown in the attached Figure 8 In the embodiment, the first node U7 and the second node N8 communicate via a wireless link; wherein the steps in block F0 are optional. It is particularly noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application; in the absence of conflict, the embodiment and sub-embodiment in embodiment 8 can be used in embodiments 5, 6, and 7; conversely, in the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in embodiments 5, 6, and 7 can be used in embodiment 8.

[0364] for First node U7 , receiving the first signaling in step S70, and receiving the second signaling in step S71.

[0365] for Second node N8 , sending the first signaling in step S80 and sending the second signaling in step S81.

[0366] In Example 8, the first signaling is used to determine the first time window, and the second signaling is used to determine the second time window.

[0367] As an embodiment, the first signaling is physical layer signaling.

[0368] As an embodiment, the first signaling is cell-specific.

[0369] As an embodiment, the first signaling is specific to the user equipment.

[0370] As an embodiment, the first signaling includes CRC, and the CRC included in the first signaling is scrambled by CC-RNTI (Common Control Radio Network Temporary Identifier).

[0371] As an embodiment, the first signaling includes CRC, and the CRC included in the first signaling is scrambled by an RNTI other than the UE-specific RNTI.

[0372] As an embodiment, the first signaling is used to indicate the first time window.

[0373] As an embodiment, the first signaling is used to indicate a third time window, and the second time window is used to determine the first time window; the third time window includes a positive integer number of time slots in the time domain.

[0374] As a sub-embodiment of this embodiment, the third time window includes a positive integer number of continuous time slots in the time domain.

[0375] As a sub-embodiment of this embodiment, the first time window belongs to the third time window.

[0376] As a sub-embodiment of this embodiment, the end time of the third time window is used to determine the end time of the first time window.

[0377] As an embodiment, the first time window includes a positive integer number of time slots in the time domain.

[0378] As an embodiment, the first signaling is used to indicate the starting moment of the first time window in the time domain.

[0379] As an embodiment, the first signaling is used to indicate the duration of the first time window in the time domain.

[0380] As an embodiment, the first node U7 receives the first signaling in a first time slot, and the first node U7 assumes that the first time window starts at the first time slot.

[0381] As an embodiment, the first time window is a COT.

[0382] As an embodiment, the second node N8 determines the starting time of the first time window through LBT.

[0383] As an embodiment, the second node N8 determines the starting time of the first time window through channel sensing.

[0384] As an embodiment, the last OFDM symbol occupied by the first signaling is used to determine the starting time of the first time window.

[0385] As an embodiment, the first signaling and the target time-frequency resource pool are located on different BWPs respectively.

[0386] As an embodiment, the first signaling and the target time-frequency resource pool are respectively located on different sub-frequency bands.

[0387] As an embodiment, the first signaling and the target time-frequency resource pool are located on different carriers respectively.

[0388] As an embodiment, the first signaling is located in the authorized spectrum.

[0389] As an embodiment, the second signaling is physical layer signaling.

[0390] As an embodiment, the second signaling is cell-specific.

[0391] As an embodiment, the second signaling is specific to the user equipment.

[0392] As an embodiment, the second signaling includes CRC, and the CRC included in the second signaling is scrambled by CC-RNTI.

[0393] As an embodiment, the second signaling includes CRC, and the CRC included in the second signaling is scrambled by an RNTI other than the UE-specific RNTI.

[0394] As an embodiment, the second signaling is used to indicate the second time window.

[0395] As an embodiment, the second signaling is used to indicate a fourth time window, and the fourth time window is used to determine the second time window; the fourth time window includes a positive integer number of time slots in the time domain.

[0396] As a sub-embodiment of this embodiment, the fourth time window includes a positive integer number of consecutive time slots in the time domain.

[0397] As a sub-embodiment of this embodiment, the second time window belongs to the fourth time window.

[0398] As a sub-embodiment of this embodiment, the end time of the fourth time window is used to determine the end time of the second time window.

[0399] As an embodiment, the second time window includes a positive integer number of time slots in the time domain.

[0400] As an embodiment, the second signaling is used to indicate the starting moment of the second time window in the time domain.

[0401] As an embodiment, the second signaling is used to indicate the duration of the second time window in the time domain.

[0402] As an embodiment, the first node U7 receives the second signaling in the second time slot, and the first node U7 assumes that the second time window starts at the second time slot.

[0403] As an embodiment, the second time window is a COT.

[0404] As an embodiment, the second node N8 determines the starting time of the second time window through LBT.

[0405] As an embodiment, the second node N8 determines the starting time of the second time window through channel sensing.

[0406] As an embodiment, the last OFDM symbol occupied by the second signaling is used to determine the starting time of the second time window.

[0407] As an embodiment, the second signaling and the target time-frequency resource pool are located on different BWPs respectively.

[0408] As an embodiment, the second signaling and the target time-frequency resource pool are respectively located on different sub-frequency bands.

[0409] As an embodiment, the second signaling and the target time-frequency resource pool are located on different carriers respectively.

[0410] As an embodiment, the second signaling is located in the authorized spectrum.

[0411] As an embodiment, the first time window and the second time window are orthogonal in the time domain.

[0412] As an embodiment, the first time window and the second time window overlap in the time domain.

[0413] As an embodiment, the first time window includes the second time window.

[0414] As an embodiment, the second time window includes the first time window.

[0415] As an embodiment, the next symbol of the last OFDM symbol occupied by the first signaling is considered to be the starting time of the first time window.

[0416] As an embodiment, the next symbol of the last OFDM symbol occupied by the second signaling is considered to be the starting moment of the second time window.

[0417] Example 9

[0418] Embodiment 9 illustrates a schematic diagram of a first time-frequency resource set and a second time-frequency resource set, as shown in the attached figure. Fig. 9 As shown in the attached Fig. 9In the embodiment, the first set of time-frequency resources and the second set of time-frequency resources are overlapped in the time domain, and the first set of time-frequency resources and the second set of time-frequency resources are orthogonal in the frequency domain.

[0419] As an embodiment, the first time-frequency resource set occupies a positive integer number of REs greater than 1.

[0420] As an embodiment, the second time-frequency resource set occupies a positive integer number of REs greater than 1.

[0421] As an embodiment, the first time-frequency resource set and the second time-frequency resource set occupy the same OFDM symbol in the time domain.

[0422] As an embodiment, the first node in the present application uses different panels to blindly detect PDCCH on the first time-frequency resource set and the second time-frequency resource set.

[0423] As an embodiment, the second node in the present application uses different panels to send PDCCH on the first time-frequency resource set and the second time-frequency resource set.

[0424] Example 10

[0425] Embodiment 10 illustrates a schematic diagram of a first time window and a second time window, as shown in the attached figure. Fig.10 As shown in the attached Fig.10 In the present application, part of the time-frequency resources included in the first time-frequency resource set is located in the first time window, and the second time-frequency resource set in the present application is located outside the second time window.

[0426] As an embodiment, the target time-frequency resource pool includes the time-frequency resources in the first time-frequency resource set that are located in the first time window.

[0427] As an embodiment, the target time-frequency resource pool does not include the time-frequency resources in the second time-frequency resource set.

[0428] As an embodiment, the first node performs blind detection in the time-frequency resources located in the first time window in the first time-frequency resource set.

[0429] As an embodiment, the first node does not perform blind detection in the second time-frequency resource set.

[0430] Embodiment 11

[0431] Embodiment 11 illustrates another schematic diagram of the first time window and the second time window, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 The first time-frequency resource set in the present application is located outside the first time window, and some time-frequency resources included in the second time-frequency resource set in the present application are located within the second time window.

[0432] As an embodiment, the target time-frequency resource pool includes the time-frequency resources in the second time-frequency resource set that are located in the second time window.

[0433] As an embodiment, the target time-frequency resource pool does not include the time-frequency resources in the first time-frequency resource set.

[0434] As an embodiment, the first node performs blind detection in the time-frequency resources located in the second time window in the second time-frequency resource set.

[0435] As an embodiment, the first node does not perform blind detection in the first time-frequency resource set.

[0436] Example 12

[0437] Embodiment 12 illustrates another schematic diagram of the first time window and the second time window, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 The first time-frequency resource set in the present application is located in the first time window, and the second time-frequency resource set in the present application is located in the second time window.

[0438] As an embodiment, the target time-frequency resource pool includes the time-frequency resources in the first time-frequency resource set that are located in the first time window, and the target time-frequency resource pool includes the time-frequency resources in the second time-frequency resource set that are located in the second time window.

[0439] As an embodiment, the first node performs blind detection in both the first time-frequency resource set and the second time-frequency resource set.

[0440] As an embodiment, the first node uses different panels to perform blind detection in the first time-frequency resource set and the second time-frequency resource set respectively.

[0441] Example 13

[0442] Embodiment 13 illustrates a schematic diagram of a first type parameter set and a second type parameter set; Fig.13 As shown. Fig.13In the present application, the first type parameter set includes Q2 first type parameters, and the Q2 first type parameters correspond to Q2 first type beamforming vectors respectively; the second type parameter set includes Q3 second type parameters, and the Q3 second type parameters correspond to Q3 second type beamforming vectors respectively; the first candidate parameter in the present application corresponds to the first spatial beam beamforming vector, and the second candidate parameter in the present application corresponds to the second spatial beam beamforming vector; the first spatial beamforming vector is associated with the Q2 first type beamforming vectors, and the second spatial beamforming vector is associated with the Q3 second type beamforming vectors.

[0443] As an embodiment, the spatial coverage of the first spatial beamforming vector includes the spatial coverage corresponding to any first-type beamforming vector among the Q2 first-type beamforming vectors.

[0444] As an embodiment, the spatial coverage of the second spatial beamforming vector includes the spatial coverage corresponding to any second type of beamforming vector among the Q3 second type of beamforming vectors.

[0445] Embodiment 14

[0446] Embodiment 14 illustrates a schematic diagram of a first signaling and a target signal; Fig.14 As shown in the attached Fig.14 In the embodiment, the target signaling is used to schedule the target signal.

[0447] As an embodiment, the first signaling and the target signaling are sent in different frequency band resources respectively.

[0448] As an embodiment, the first signaling and the target signaling are sent in the same frequency band resources.

[0449] As an embodiment, the second signaling and the target signaling are sent in different frequency band resources respectively.

[0450] As an embodiment, the second signaling and the target signaling are sent in the same frequency band resources.

[0451] Embodiment 15

[0452] Embodiment 15 illustrates a structural block diagram in a first node, as shown in the attached Fig.15 As shown in the attached Fig.15 In the embodiment, the first node 1500 includes a first transceiver 1501 and a second transceiver 1502 .

[0453] The first transceiver 1501 receives a first information block;

[0454] The second transceiver 1502 monitors X control channel candidates in the target time-frequency resource pool, where X is a positive integer greater than 1;

[0455] In Embodiment 15, the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

[0456] As an embodiment, the first time-frequency resource set and the second time-frequency resource set are respectively associated with a first candidate parameter and a second candidate parameter; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

[0457] As an embodiment, the first time window and the second time window overlap in the time domain, at least one control channel alternative among the X control channel alternatives belongs to the first time-frequency resource set, and at least another control channel alternative among the X control channel alternatives belongs to the second time-frequency resource set.

[0458] As an embodiment, the first time window and the second time window are orthogonal in the time domain; any control channel alternative among the X control channel alternatives belongs to the first time-frequency resource subset, or any control channel alternative among the X control channel alternatives belongs to the second time-frequency resource subset; the first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0459] As an embodiment, the first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly related to the ratio of K1 to K, and X2 is linearly related to the ratio of K2 to K.

[0460] As an embodiment, the first transceiver 1501 sends target information; the target information is used to indicate that the first node supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools among the K1 control resource set pools.

[0461] As an embodiment, the second transceiver 1502 receives first signaling; the first signaling is used to determine the first time window.

[0462] As an embodiment, the second transceiver 1502 receives second signaling; the second signaling is used to determine the second time window.

[0463] As an embodiment, the second transceiver 1502 receives target signaling in a first control channel alternative, and the second transceiver 1502 receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; and the target signaling is used to indicate the target time-frequency resource block.

[0464] As an embodiment, the second transceiver 1502 receives target signaling in a first control channel alternative, and the second transceiver 1502 sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; and the target signaling is used to indicate the target time-frequency resource block.

[0465] As an embodiment, the target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0466] As an embodiment, the first transceiver 1501 includes at least the first 6 of the antenna 452, transmitter / receiver 454, multi-antenna transmit processor 457, transmit processor 468, multi-antenna receive processor 458, receive processor 456, and controller / processor 459 in Example 4.

[0467] As an embodiment, the second transceiver 1502 includes at least the first six of the antenna 452, transmitter / receiver 454, multi-antenna transmit processor 457, transmit processor 468, multi-antenna receive processor 458, receive processor 456, and controller / processor 459 in Embodiment 4.

[0468] Example 16

[0469] Embodiment 16 illustrates a structural block diagram in a second node, as shown in the attached Fig.16 As shown in the attached Fig.16 , the second node 1600 includes a third transceiver 1601 and a fourth transceiver 1602 .

[0470] The third transceiver 1601 sends a first information block;

[0471] The fourth transceiver 1602 sends target signaling in the target time-frequency resource pool;

[0472] In Embodiment 16, the target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

[0473] As an embodiment, the first time-frequency resource set and the second time-frequency resource set are respectively associated with a first candidate parameter and a second candidate parameter; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

[0474] As an embodiment, the first time window and the second time window overlap in the time domain, at least one control channel alternative among the X control channel alternatives belongs to the first time-frequency resource set, and at least another control channel alternative among the X control channel alternatives belongs to the second time-frequency resource set.

[0475] As an embodiment, the first time window and the second time window are orthogonal in the time domain; any control channel alternative among the X control channel alternatives belongs to the first time-frequency resource subset, or any control channel alternative among the X control channel alternatives belongs to the second time-frequency resource subset; the first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

[0476] As an embodiment, the first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly related to the ratio of K1 to K, and X2 is linearly related to the ratio of K2 to K.

[0477] As an embodiment, the third transceiver 1601 receives target information; the target information is used to indicate that the sender of the target information supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools among the K1 control resource set pools.

[0478] As an embodiment, the fourth transceiver 1602 sends a first signaling; the first signaling is used to determine the first time window.

[0479] As an embodiment, the fourth transceiver 1602 sends a second signaling; the second signaling is used to determine the second time window.

[0480] As an embodiment, the fourth transceiver 1602 determines a first control channel alternative; and the fourth transceiver 1602 sends a target signal; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

[0481] As an embodiment, the fourth transceiver 1602 determines a first control channel alternative; and the fourth transceiver 1602 receives a target signal; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; and the target signaling is used to indicate the target time-frequency resource block.

[0482] As an embodiment, the target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are respectively associated with the first time-frequency resource set and the second time-frequency resource set; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

[0483] As an embodiment, the third transceiver 1601 includes at least the first six of the antenna 420, transmitter / receiver 418, multi-antenna transmit processor 471, transmit processor 416, multi-antenna receive processor 472, receive processor 470, and controller / processor 475 in Example 4.

[0484] As an embodiment, the fourth transceiver 1602 includes at least the first six of the antenna 420, transmitter / receiver 418, multi-antenna transmit processor 471, transmit processor 416, multi-antenna receive processor 472, receive processor 470, and controller / processor 475 in Embodiment 4.

[0485] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first node and the second node in the present application include but are not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, transportation vehicles, vehicles, RSUs, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The base station in the present application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRPs, GNSSs, relay satellites, satellite base stations, aerial base stations, RSUs and other wireless communication devices.

[0486] The above is only a preferred embodiment 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 for wireless communication, characterized in that include: A first transceiver receives a first information block; A second transceiver monitors X control channel candidates in a target time-frequency resource pool, where X is a positive integer greater than 1; The first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

2. The first node according to claim 1, characterized in that: The first time-frequency resource set and the second time-frequency resource set are associated with a first candidate parameter and a second candidate parameter, respectively; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

3. The first node according to claim 1 or 2, characterized in that: The first time window and the second time window overlap in the time domain, at least one control channel candidate among the X control channel candidates belongs to the first time-frequency resource set, and at least another control channel candidate among the X control channel candidates belongs to the second time-frequency resource set.

4. The first node according to claim 1 or 2, characterized in that: The first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; The first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

5. The first node according to claim 3, characterized in that: The first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly correlated with the ratio of K1 to K, and X2 is linearly correlated with the ratio of K2 to K.

6. The first node according to claim 5, characterized in that: The first transceiver sends target information; the target information is used to indicate that the first node supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools in the M1 control resource set pools.

7. The first node according to any one of claims 1, 2, 5 or 6, characterized in that: The second transceiver receives first signaling; the first signaling is used to determine the first time window.

8. The first node according to claim 3, characterized in that: The second transceiver receives first signaling; the first signaling is used to determine the first time window.

9. The first node according to claim 4, characterized in that: The second transceiver receives first signaling; the first signaling is used to determine the first time window.

10. The first node according to any one of claims 1, 2, 5, 6, 8 or 9, characterized in that: The second transceiver receives second signaling; the second signaling is used to determine the second time window.

11. The first node according to claim 3, characterized in that: The second transceiver receives second signaling; the second signaling is used to determine the second time window.

12. The first node according to claim 4, characterized in that: The second transceiver receives second signaling; the second signaling is used to determine the second time window.

13. The first node according to claim 7, characterized in that: The second transceiver receives second signaling; the second signaling is used to determine the second time window.

14. The first node according to any one of claims 1, 2, 5, 6, 8, 9, 11, 12 or 13, characterized in that: The second transceiver receives target signaling in a first control channel alternative, and the second transceiver operates a target signal in a target time-frequency resource block; the first control channel alternative is one control channel alternative among the X control channel alternatives; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

15. The first node according to claim 3, characterized in that: The second transceiver receives target signaling in a first control channel alternative, and the second transceiver operates a target signal in a target time-frequency resource block; the first control channel alternative is one control channel alternative among the X control channel alternatives; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

16. The first node according to claim 4, characterized in that: The second transceiver receives target signaling in a first control channel alternative, and the second transceiver operates a target signal in a target time-frequency resource block; the first control channel alternative is one control channel alternative among the X control channel alternatives; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

17. The first node according to claim 7, characterized in that: The second transceiver receives target signaling in a first control channel alternative, and the second transceiver operates a target signal in a target time-frequency resource block; the first control channel alternative is one control channel alternative among the X control channel alternatives; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

18. The first node according to claim 10, characterized in that: The second transceiver receives target signaling in a first control channel alternative, and the second transceiver operates a target signal in a target time-frequency resource block; the first control channel alternative is one control channel alternative among the X control channel alternatives; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

19. The first node according to claim 14, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

20. The first node according to claim 15, 16, 17 or 18, characterized in that The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

21. A second node for wireless communication, characterized in that include: A third transceiver sends a first information block; a fourth transceiver, sending a target signaling in a target time-frequency resource pool; The target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

22. The second node according to claim 21, characterized in that: The first time-frequency resource set and the second time-frequency resource set are associated with a first candidate parameter and a second candidate parameter, respectively; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

23. The second node according to claim 21 or 22, characterized in that: The first time window and the second time window overlap in the time domain, at least one control channel candidate among the X control channel candidates belongs to the first time-frequency resource set, and at least another control channel candidate among the X control channel candidates belongs to the second time-frequency resource set.

24. The second node according to any one of claims 21 or 22, characterized in that: The first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; The first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

25. The second node according to claim 23, characterized in that: The first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly correlated with the ratio of K1 to K, and X2 is linearly correlated with the ratio of K2 to K.

26. The second node according to claim 25, characterized in that: The third transceiver receives target information; the target information is used to indicate that the sender of the target information supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools in the M1 control resource set pools.

27. The second node according to any one of claims 21, 22, 25 or 26, characterized in that: The fourth transceiver sends a first signaling; the first signaling is used to determine the first time window.

28. The second node according to claim 23, characterized in that: The fourth transceiver sends a first signaling; the first signaling is used to determine the first time window.

29. The second node according to claim 24, characterized in that: The fourth transceiver sends a first signaling; the first signaling is used to determine the first time window.

30. The second node according to any one of claims 21, 22, 25, 26, 28 or 29, characterized in that: The fourth transceiver sends a second signaling; the second signaling is used to determine the second time window.

31. The second node according to claim 23, characterized in that: The fourth transceiver sends a second signaling; the second signaling is used to determine the second time window.

32. The second node according to claim 24, characterized in that: The fourth transceiver sends a second signaling; the second signaling is used to determine the second time window.

33. The second node according to claim 27, characterized in that: The fourth transceiver sends a second signaling; the second signaling is used to determine the second time window.

34. The second node according to any one of claims 21, 22, 25, 26, 28, 29, 31, 32 or 33, characterized in that The fourth transceiver determines a first control channel alternative; and the fourth transceiver sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

35. The second node according to claim 23, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

36. The second node according to claim 24, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

37. The second node according to claim 27, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

38. The second node according to claim 30, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver sends a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

39. The second node according to any one of claims 21, 22, 25, 26, 28, 29, 31, 32, 33, 35, 36, 37 or 38, characterized in that The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

40. The second node according to claim 23, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

41. The second node according to claim 24, characterized in that: The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

42. The second node according to claim 27, characterized in that The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

43. The second node according to claim 30, characterized in that The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

44. The second node according to claim 34, characterized in that The fourth transceiver determines a first control channel alternative; and the fourth transceiver receives a target signal in a target time-frequency resource block; the first control channel alternative is one of the X control channel alternatives; the target signaling occupies the first control channel alternative; the target signaling is used to indicate the target time-frequency resource block.

45. The second node according to any one of claims 35, 36, 37, 38, 40, 41, 42, 43 or 44, characterized in that The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

46. ​​The second node according to claim 34, characterized in that The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

47. The second node according to claim 39, characterized in that The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

48. A method in a first node in wireless communication, characterized in that include: receiving a first information block; Monitoring X control channel candidates in a target time-frequency resource pool, where X is a positive integer greater than 1; The first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel candidates in the target time-frequency resource pool.

49. The method in the first node according to claim 48, characterized in that: The first time-frequency resource set and the second time-frequency resource set are associated with a first candidate parameter and a second candidate parameter, respectively; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

50. The method in the first node according to claim 48 or 49, characterized in that: The first time window and the second time window overlap in the time domain, at least one control channel candidate among the X control channel candidates belongs to the first time-frequency resource set, and at least another control channel candidate among the X control channel candidates belongs to the second time-frequency resource set.

51. The method in the first node according to any one of claims 48 or 49, characterized in that: The first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; The first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

52. The method in the first node according to claim 50, characterized in that: The first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly correlated with the ratio of K1 to K, and X2 is linearly correlated with the ratio of K2 to K.

53. The method in the first node according to claim 52, characterized in that: include: Send target information; The target information is used to indicate that the first node supports M1 control resource set pools, where M1 is a positive integer greater than 1; The first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools among the M1 control resource set pools.

54. The method in the first node according to any one of claims 48, 49, 52 or 53, characterized in that: include: receiving a first signaling; The first signaling is used to determine the first time window.

55. The method in the first node according to claim 50, characterized in that: include: A first signaling is received; wherein the first signaling is used to determine the first time window.

56. The method in the first node according to claim 51, characterized in that: include: A first signaling is received; wherein the first signaling is used to determine the first time window.

57. The method in the first node according to any one of claims 48, 49, 52, 53, 55 or 56, characterized in that include: receiving a second signaling; The second signaling is used to determine the second time window.

58. The method in the first node according to claim 50, characterized in that: include: Receive second signaling; wherein the second signaling is used to determine the second time window.

59. The method in the first node according to claim 51, characterized in that: include: Receive second signaling; wherein the second signaling is used to determine the second time window.

60. The method in the first node according to claim 54, characterized in that: include: Receive second signaling; wherein the second signaling is used to determine the second time window.

61. A method in a first node according to any one of claims 48, 49, 52, 53, 55, 56, 58, 59 or 60, characterized in that: include: receiving target signaling in a first control channel candidate; operating a target signal in a target time-frequency resource block; The first control channel candidate is one of the X control channel candidates; the target signaling is used to indicate the target time-frequency resource block; and the operation is sending, or the operation is receiving.

62. The method in the first node according to claim 50, characterized in that: include: receiving target signaling in a first control channel candidate; A target signal is operated in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

63. The method in the first node according to claim 51, characterized in that: include: receiving target signaling in a first control channel candidate; A target signal is operated in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

64. The method in the first node according to claim 54, characterized in that: include: receiving target signaling in a first control channel candidate; A target signal is operated in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

65. The method in the first node according to claim 57, characterized in that: include: receiving target signaling in a first control channel candidate; A target signal is operated in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling is used to indicate the target time-frequency resource block; the operation is sending, or the operation is receiving.

66. The method in the first node according to claim 61, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

67. The method in the first node according to any one of claims 62 to 65, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

68. A method in a second node in wireless communication, characterized in that include: Sending a first information block; Sending target signaling in the target time-frequency resource pool; The target time-frequency resource pool includes X control channel alternatives, where X is a positive integer greater than 1; the target signaling occupies one control channel alternative among the X control channel alternatives; the first information block is used to indicate a first time-frequency resource set and a second time-frequency resource set; the target time-frequency resource pool includes the time-frequency resources included in the first time-frequency resource set and belonging to a first time window in the time domain, and the target time-frequency resource pool includes the time-frequency resources included in the second time-frequency resource set and belonging to a second time window in the time domain; the first time window and the second time window are different, and the relative position relationship between the first time window and the second time window is used to determine the time-frequency distribution of the X control channel alternatives in the target time-frequency resource pool.

69. The method in the second node according to claim 68, characterized in that: The first time-frequency resource set and the second time-frequency resource set are associated with a first candidate parameter and a second candidate parameter, respectively; the first candidate parameter is used for receiving signals in the first time-frequency resource set, and the second candidate parameter is used for receiving signals in the second time-frequency resource set.

70. The method in the second node according to claim 68 or 69, characterized in that: The first time window and the second time window overlap in the time domain, at least one control channel candidate among the X control channel candidates belongs to the first time-frequency resource set, and at least another control channel candidate among the X control channel candidates belongs to the second time-frequency resource set.

71. The method in the second node according to any one of claims 68 or 69, characterized in that: The first time window and the second time window are orthogonal in the time domain; any control channel candidate among the X control channel candidates belongs to the first time-frequency resource subset, or any control channel candidate among the X control channel candidates belongs to the second time-frequency resource subset; The first time-frequency resource subset is the time-frequency resources included in the first time-frequency resource set and belonging to the first time window in the time domain, and the second time-frequency resource subset is the time-frequency resources included in the second time-frequency resource set and belonging to the second time window in the time domain.

72. The method in the second node according to claim 70, characterized in that: The first time-frequency resource set is configured with K1 control channel alternatives, and the second time-frequency resource set is configured with K2 control channel alternatives, the sum of K1 and K2 is greater than X, and K1 and K2 are both positive integers greater than 1; X1 control channel alternatives among the K1 control channel alternatives belong to the X control channel alternatives, and X2 control channel alternatives among the K2 control channel alternatives belong to the X control channel alternatives; the sum of X1 and X2 is equal to X; the sum of K1 and K2 is equal to K, X1 is linearly correlated with the ratio of K1 to K, and X2 is linearly correlated with the ratio of K2 to K.

73. The method in the second node according to claim 72, characterized in that: include: Receive target information; Among them, the target information is used to indicate that the sender of the target information supports M1 control resource set pools, where M1 is a positive integer greater than 1; the first time-frequency resource set and the second time-frequency resource set respectively belong to two different control resource set pools in the M1 control resource set pools.

74. The method in the second node according to any one of claims 68, 69, 72 or 73, characterized in that: include: Sending a first signaling; The first signaling is used to determine the first time window.

75. The method in the second node according to claim 70, characterized in that: include: Sending a first signaling; wherein the first signaling is used to determine the first time window.

76. The method in the second node according to claim 71, characterized in that: include: Sending a first signaling; wherein the first signaling is used to determine the first time window.

77. The method in the second node according to any one of claims 68, 69, 72, 73, 75 or 76, characterized in that: include: Sending a second signaling; The second signaling is used to determine the second time window.

78. The method in the second node according to claim 70, characterized in that: include: Sending a second signaling; wherein the second signaling is used to determine the second time window.

79. The method in the second node according to claim 71, characterized in that: include: Sending a second signaling; wherein the second signaling is used to determine the second time window.

80. The method in the second node according to claim 74, characterized in that: include: Sending a second signaling; wherein the second signaling is used to determine the second time window.

81. The method in the second node according to any one of claims 68, 69, 72, 73, 75, 76, 78, 79 or 80, characterized in that include: determining a first control channel candidate; Sending a target signal in a target time-frequency resource block; The first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; and the target signaling is used to indicate the target time-frequency resource block.

82. The method in the second node according to claim 70, characterized in that: include: Determine a first control channel candidate; send a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

83. The method in the second node according to claim 71, characterized in that: include: Determine a first control channel candidate; send a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

84. The method in the second node according to claim 74, characterized in that: include: Determine a first control channel candidate; send a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

85. The method in the second node according to claim 77, characterized in that: include: Determine a first control channel candidate; send a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

86. The method in the second node according to any one of claims 68, 69, 72, 73, 75, 76, 78, 79, 80, 82, 83, 84 or 85, characterized in that include: determining a first control channel candidate; Receiving a target signal in a target time-frequency resource block; The first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; and the target signaling is used to indicate the target time-frequency resource block.

87. The method in the second node according to claim 70, characterized in that: include: Determine a first control channel candidate; receive a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

88. The method in the second node according to claim 71, characterized in that: include: Determine a first control channel candidate; receive a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

89. The method in the second node according to claim 74, characterized in that: include: Determine a first control channel candidate; receive a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

90. The method in the second node according to claim 77, characterized in that: include: Determine a first control channel candidate; receive a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

91. The method in the second node according to claim 81, characterized in that: include: Determine a first control channel candidate; receive a target signal in a target time-frequency resource block; wherein the first control channel candidate is one of the X control channel candidates; the target signaling occupies the first control channel candidate; the target signaling is used to indicate the target time-frequency resource block.

92. The method in the second node according to any one of claims 82, 83, 84, 85, 87, 88, 89, 90 or 91, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

93. The method in the second node according to claim 81, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

94. The method in the second node according to claim 86, characterized in that: The target signaling is used to indicate a first parameter from a first parameter set, the first parameter is used for receiving the target signal, or the first parameter is used for sending the target signal; the first parameter set is one of a first type of parameter set and a second type of parameter set; the first type of parameter set and the second type of parameter set are associated with the first time-frequency resource set and the second time-frequency resource set, respectively; the first control channel alternative belongs to the first time-frequency resource set, and the first parameter set is the first type of parameter set; or, the first control channel alternative belongs to the second time-frequency resource set, and the first parameter set is the second type of parameter set.

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