A method and apparatus in a node for wireless communication

Abstract

A method and apparatus in a node for wireless communication are disclosed. The node receives a first information block that determines a first search space set and a second search space set; the node receives target control signaling that determines a first set of time-frequency resources and receives a first signal, the first signal belonging to the first set of time-frequency resources; a correspondence is associated between a PDCCH candidate included in the first search space set and a PDCCH candidate included in the second search space set; a first PDCCH is one PDCCH candidate included in the first search space set, and a second PDCCH is a PDCCH candidate included in the second search space set and associated with the first PDCCH; a target subset of time-frequency resources includes REs other than REs occupied by the first signal; whether the first PDCCH is detected is used to determine whether the target subset of time-frequency resources includes REs occupied by the second PDCCH. The application avoids resource collision.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to transmission schemes and apparatus with multiple antennas in wireless communication. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on 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 New Radio (NR) (or 5G). At the 3GPP RAN #75 plenary meeting, the WI (Work Item) for New Radio (NR) was adopted, and the standardization work for NR began.

[0003] In New Radio (NR) technologies, multi-antenna technologies (such as Multiple Input Multiple Output (MIMO), Transmission Reception Point (TRP), and multiple panels) are crucial components. To adapt to more diverse application scenarios and meet higher demands, the 3GPP RAN#86 plenary meeting approved a further enhancement of MIMO under NR, WI, to support more robust, spectrally efficient, and versatile multi-antenna communication for a wider range of applications. Summary of the Invention

[0004] In multi-antenna systems, such as Transmission Reception Point (TRP) communication, the same channel or signal can be transmitted through multiple transmission and reception nodes to enhance transmission robustness. Release 16 (Rel-16) supports TRP transmission for the data channel, and 3GPP plans to introduce TRP transmission for the control channel in Release 17 (Rel-17).

[0005] This application discloses a solution to the transmission problem of the control channel in multi-antenna systems. It should be noted that the description in this application uses a multi-antenna system, particularly a multi-transmitter / receiver node transmission system, as a typical application scenario or example. This application is also applicable to other scenarios facing similar problems (such as scenarios with higher requirements for the robustness or coverage of the control channel, or scenarios requiring PDCCH association in addition to multi-transmitter / receiver node transmission, including but not limited to coverage enhancement systems, IoT (Internet of Things), URLLC (Ultra-Reliable Low Latency Communication) networks, and vehicle-to-everything (V2X) networks), and can achieve similar technical effects. Furthermore, adopting a unified solution for different scenarios (including but not limited to multi-antenna system scenarios) helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the first node device of this application can be applied to the second node device, and vice versa. In particular, the explanations of terms, nouns, functions, and variables in this application (unless otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36, TS38, and TS37 series.

[0006] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0007] Receive a first information block, the first information block is used to determine a first search space set and a second search space set, the first search space set includes at least one PDCCH candidate, the second search space set includes at least one PDCCH candidate, and the first search space set and the second search space set are different;

[0008] The system receives target control signaling and a first signal, the target control signaling being used to determine a first time-frequency resource set, the first time-frequency resource set including multiple REs, the first signal occupying at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belonging to the first time-frequency resource set.

[0009] Wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0010] As an example, whether the target time-frequency resource subset includes the RE occupied by the second PDCCH is determined by whether the first PDCCH is detected. This supports the exclusion of the RE occupied by two related PDCCH candidates from the resource mapping of PTRS or PDSCH, avoiding collisions between PTRS or PDSCH and PDCCH, and ensuring the phase tracking performance of PTRS and the decoding performance of PDSCH.

[0011] According to one aspect of this application, the method is characterized in that the control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; and the quasi-co-addressing of the reference signals included in the first control resource set and the quasi-co-addressing of the reference signals included in the second control resource set are different.

[0012] According to one aspect of this application, the above method is characterized in that the aggregation level of the first PDCCH is equal to the aggregation level of the second PDCCH, the index of the first PDCCH in the first search space set is equal to the index of the second PDCCH in the second search space set, the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH, and whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0013] According to one aspect of this application, the method is characterized in that the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0014] As an example, the RE occupied by the second PDCCH is avoided by the first signal based on the target value or whether the second PDCCH is monitored or discarded. This allows for the determination of whether the PDCCH resource is actually occupied based on the blind detection of the PDCCH, reducing unnecessary rate matching or puncturing during resource mapping, and improving resource utilization and the transmission performance of PTRS or PDSCH.

[0015] According to one aspect of this application, the method is characterized in that at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold is equal to the maximum number of PDCCH monitoring times by the receiver of the target control signaling within the first time window and on the first BWP, and the first threshold is a positive integer; a second threshold is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling within the first time window and on the first BWP, and the second threshold is a positive integer; the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is being monitored.

[0016] As an example, when determining whether a PDCCH resource is actually occupied, the impact of the search space set being discarded due to overbooking is taken into account, further reducing unnecessary rate matching or punching during resource mapping.

[0017] According to one aspect of this application, the above method is characterized in that the first information block is used to indicate a reference search space set, the reference search space set being one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0018] As an example, the PDCCH resource occupancy status is determined by the indication of the first information block. While supporting PTRS or PDSCH to avoid PDCCH resources, it provides a unified solution for different purposes (such as HARQ resource determination, timing, etc.), which simplifies the design and reduces the standardization workload.

[0019] According to one aspect of this application, the above method is characterized by comprising:

[0020] Receive the second signal;

[0021] Wherein, the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group including at least one RE; the first signal and the second signal are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0022] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0023] Send a first information block, which is used to indicate a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, and the first search space set and the second search space set are different;

[0024] Send a target control signaling and send a first signal, the target control signaling being used to indicate a first time-frequency resource set, the first time-frequency resource set including multiple REs, the first signal occupying at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belonging to the first time-frequency resource set;

[0025] Wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0026] According to one aspect of this application, the method is characterized in that the control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; and the quasi-co-addressing of the reference signals included in the first control resource set and the quasi-co-addressing of the reference signals included in the second control resource set are different.

[0027] According to one aspect of this application, the above method is characterized in that the aggregation level of the first PDCCH is equal to the aggregation level of the second PDCCH, the index of the first PDCCH in the first search space set is equal to the index of the second PDCCH in the second search space set, the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH, and whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0028] According to one aspect of this application, the method is characterized in that the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0029] According to one aspect of this application, the method is characterized in that at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold is equal to the maximum number of PDCCH monitoring times by the receiver of the target control signaling within the first time window and on the first BWP, and the first threshold is a positive integer; a second threshold is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling within the first time window and on the first BWP, and the second threshold is a positive integer; the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is being monitored.

[0030] According to one aspect of this application, the above method is characterized in that the first information block is used to indicate a reference search space set, the reference search space set being one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0031] According to one aspect of this application, the above method is characterized by comprising:

[0032] Send a second signal;

[0033] Wherein, the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group including at least one RE; the first signal and the second signal are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0034] This application discloses a first node device for wireless communication, characterized in that it includes:

[0035] A first receiver receives a first information block, which is used to determine a first search space set and a second search space set. The first search space set includes at least one PDCCH candidate, and the second search space set includes at least one PDCCH candidate. The first search space set and the second search space set are not the same.

[0036] The second receiver receives target control signaling and a first signal. The target control signaling is used to determine a first time-frequency resource set. The first time-frequency resource set includes multiple REs. The first signal occupies at least one RE in the time-frequency domain. Any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set.

[0037] Wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0038] This application discloses a second node device for wireless communication, characterized in that it includes:

[0039] A first transmitter sends a first information block, which is used to indicate a first search space set and a second search space set. The first search space set includes at least one PDCCH candidate, and the second search space set includes at least one PDCCH candidate. The first search space set and the second search space set are not the same.

[0040] The second transmitter sends a target control signaling and a first signal. The target control signaling is used to indicate a first time-frequency resource set, which includes multiple REs. The first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set.

[0041] Wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0042] As an example, the method in this application has the following advantages:

[0043] The method in this application supports the exclusion of REs occupied by two related PDCCH candidates from the resource mapping of PTRS or PDSCH, thus avoiding collisions between PTRS or PDSCH and PDCCH, and ensuring the phase tracking performance of PTRS and the decoding performance of PDSCH.

[0044] The method in this application can determine whether PDCCH resources are actually occupied based on the blind detection of PDCCH, reduce unnecessary rate matching or puncturing during resource mapping, and improve resource utilization and the transmission performance of PTRS or PDSCH.

[0045] - The method in this application takes into account the impact of the search space set being discarded due to overbooking when determining whether PDCCH resources are actually occupied, and further reduces unnecessary rate matching or punching during resource mapping.

[0046] The method in this application supports PTRS or PDSCH in bypassing PDCCH resources, while providing a unified solution for different purposes (such as HARQ resource determination, timing, etc.), simplifying the design and reducing the standardization workload. Attached Figure Description

[0047] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0048] Figure 1 A flowchart illustrating a first information block and target control signaling, and a first signal according to an embodiment of this application is shown;

[0049] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0050] Figure 3 A schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0051] Figure 4 A schematic diagram of a first node device and a second node device according to an embodiment of this application is shown;

[0052] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is shown;

[0053] Figure 6 A schematic diagram illustrating the relationship between a first control resource set and a second control resource set according to an embodiment of this application is shown;

[0054] Figure 7 A schematic diagram illustrating the relationship between a first PDCCH and a second PDCCH according to an embodiment of this application is shown;

[0055] Figure 8 A schematic diagram illustrating a target value according to an embodiment of this application is shown;

[0056] Figure 9 A schematic diagram illustrating the relationship between the second PDCCH and the first and second thresholds according to an embodiment of this application is shown.

[0057] Figure 10 A schematic diagram of a reference search space set according to an embodiment of this application is shown;

[0058] Figure 11 A schematic diagram illustrating the relationship between a first signal and a second signal according to an embodiment of this application is shown;

[0059] Figure 12 A structural block diagram of a processing apparatus in a first node device according to an embodiment of this application is shown;

[0060] Figure 13 A structural block diagram of a processing apparatus in a second node device according to an embodiment of this application is shown. Detailed Implementation

[0061] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0062] Example 1

[0063] Example 1 illustrates a flowchart 100 of a first information block and target control signaling, and a first signal according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes in the diagram does not restrict the chronological order of the steps they represent.

[0064] In Embodiment 1, the first node device of this application receives a first information block in step 101; the first information block is used to determine a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, and the first search space set and the second search space set are different; in step 102, the first node device of this application receives target control signaling and receives a first signal, the target control signaling is used to determine a first time-frequency resource set, the first time-frequency resource set including multiple REs, the first signal occupying at least one RE in the time-frequency domain, and the first signal occupying any RE in the time-frequency domain. An RE belongs to the first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE in the first time-frequency resource set other than the RE occupied by the first signal; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0065] As one embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0066] As one embodiment, the first information block includes all or part of a higher-layer signaling or a physical-layer signaling.

[0067] As one embodiment, the first information block includes all or part of an RRC (Radio Resource Control) layer signaling or a MAC (Medium Access Control) layer signaling.

[0068] As one embodiment, the first information block includes all or part of a System Information Block (SIB).

[0069] As one embodiment, the first information block is either cell-specific or user equipment-specific.

[0070] As an example, the first information block is configured per BWP (Bandwidth Part).

[0071] As one embodiment, the first information block includes all or part of a field in a DCI (Downlink Control Information) format.

[0072] In one embodiment, the first information block includes more than one sub-information block, each sub-information block being an IE (Information Element) or a field in the RRC signaling to which the first information block belongs; the one or more sub-information blocks included in the first information block are used to determine the first search space set and the second search space set. In a supplementary embodiment, two different sub-information blocks included in the first information block are used to determine the first search space set and the second search space set, respectively. In another supplementary embodiment, two different sub-information blocks included in the first information block are used to indicate the first search space set and the second search space set, respectively, and the two sub-information blocks indicating that the first search space set and the second search space set belong to the same IE or list are used to determine the association between the first search space set and the second search space set.

[0073] As an example, the first information block includes all or part of the fields in the IE (Information Element) "BWP-Downlink" of an RRC signaling.

[0074] As an example, the first information block includes all or part of the fields in the IE (Information Element) "BWP-DownlinkDedicated" of an RRC signaling.

[0075] As an example, the first information block includes all or part of the fields in the IE (Information Element) "PDCCH-Config" of an RRC signaling.

[0076] As an example, the first information block includes all or part of the fields in the IE (Information Element) "ControlResourceSet" of an RRC signaling.

[0077] As an example, the first information block includes all or part of the fields in the "SearchSpace" of the IE (Information Element) in an RRC signaling.

[0078] As an example, the first information block includes a field "searchSpacesToAddModList" in an RRC signaling.

[0079] As an example, the first information block includes an IE or field "searchSpaceLinking" in an RRC signaling.

[0080] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used by the first node device in this application to determine the first search space set and the second search space set.

[0081] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to explicitly or implicitly indicate the first search space set and the second search space set.

[0082] As an example, the statement in the claim that "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to explicitly or implicitly indicate the index or identifier of the first search space set and the index or identifier of the second search space set.

[0083] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to explicitly or implicitly determine the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set.

[0084] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to indicate that the first search space set and the second search space set are linked / associated.

[0085] As an example, the statement in the claim that "the first information block is used to determine the first search space set and the second search space set" includes the following meanings: the first information block is used to indicate the first search space set and the second search space set, and the first information block is used to indicate that the first search space set and the second search space set are linked / associated.

[0086] As an example, the statement in the claim that "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to determine the corresponding association between the PDCCH (Physical Downlink Control Channel) candidates included in the first search space set and the PDCCH candidates included in the second search space set.

[0087] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to determine the first search space set and the search space set associated with the first search space set, and the second search space set is the search space set associated with the first search space set.

[0088] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meanings: the first information block is used to explicitly or implicitly indicate the index or identifier of the first search space set and the index or identifier of the search space set associated with the first search space set, and the index or identifier of the second search space set is equal to the index or identifier of the search space set associated with the first search space set.

[0089] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the same IE included in the first information block includes the index or identifier of the first search space set and the index or identifier of the second search space set.

[0090] As an example, the statement in the claim that "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block is used to indicate that the DCI format carried by a PDCCH candidate included in the first search space set and the DCI format carried by a PDCCH candidate included in the second search space set are two repetitions of the same DCI format.

[0091] As an example, the first information block includes a first field and a second field. The first field and the second field are two different fields included in the IE (Information Element) "SearchSpace" in the RRC signaling. The first field and the second field respectively indicate two search space set IDs or indexes.

[0092] As an example, the first information block includes a first field and a second field, which are two different fields included in an IE (Information Element) of RRC signaling. The first field and the second field respectively indicate two search space set IDs or indexes.

[0093] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block includes a first field and a second field, the first field and the second field are two different fields included in an IE (Information Element) of RRC signaling, and the first field and the second field respectively indicate the ID or index of the first search space set and the ID or index of the second search space set.

[0094] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block includes a first field and a second field, the first field and the second field are two different fields included in an IE "SearchSpace" in RRC signaling, the first field and the second field respectively indicate the ID or index of the first search space set and the ID or index of the second search space set.

[0095] As an example, the statement in the claim "the first information block is used to determine the first search space set and the second search space set" includes the following meaning: the first information block includes a first field and a second field, the first field and the second field are two different fields included in an IE "searchSpaceLinking" in RRC signaling, the first field and the second field respectively indicate the ID or index of the first search space set and the ID or index of the second search space set.

[0096] As an example, the number of CCEs occupied by any PDCCH candidate included in the first search space set is equal to one of 1, 2, 4, 8, or 16; the number of CCEs occupied by any PDCCH candidate included in the second search space set is equal to one of 1, 2, 4, 8, or 16.

[0097] As an example, any PDCCH candidate included in the first search space set is a monitored PDCCH candidate; any PDCCH candidate included in the second search space set is a monitored PDCCH candidate.

[0098] As an example, any PDCCH candidate included in the first search space set is a PDCCH candidate that is counted in the number of monitoring times.

[0099] As an example, the first search space set includes a PDCCH candidate that is not counted in the number of monitoring attempts.

[0100] As an example, any PDCCH candidate included in the second search space set is a PDCCH candidate that is counted in the number of monitoring sessions.

[0101] As one embodiment, the second search space set includes a PDCCH candidate that is not counted in the number of monitoring sessions.

[0102] As an example, any PDCCH candidate included in the first search space set is a PDCCH candidate with one or more DCI formats or DCI payload sizes; any PDCCH candidate included in the second search space set is a PDCCH candidate with one or more DCI formats or DCI payload sizes.

[0103] As one embodiment, the first search space set includes only one PDCCH candidate, and the second search space set includes only one PDCCH candidate.

[0104] As one embodiment, the first search space set includes multiple PDCCH candidates, and the second search space set includes multiple PDCCH candidates.

[0105] As one embodiment, the number of PDCCH candidates included in the first search space set is equal to the number of PDCCH candidates included in the second search space set.

[0106] As one embodiment, the first information block is used to determine the number of PDCCH candidates included in the first search space set, and the first information block is used to determine the number of PDCCH candidates included in the second search space set.

[0107] As an example, both the first search space set and the second search space set are PDCCH search space sets.

[0108] As one embodiment, the first search space set is a user-specific search space set (USS Set), and the second search space set is a user-specific search space set (USS Set, UE-Specific Search Space Set).

[0109] As an example, the first search space set is a common search space set (CSS Set), and the second search space set is a common search space set.

[0110] As an example, the first search space set is a common search space set (CSS Set) of type 3, and the second search space set is a common search space set of type 3.

[0111] As an example, the first search space set is a common search space set (CSS Set), and the second search space set is a user-specific search space set (USS Set).

[0112] As one embodiment, the first search space set is a user-specific search space set (USS Set), and the second search space set is a public search space set.

[0113] As an example, the index of the first search space set and the index of the second search space set are different.

[0114] As an example, the IDs of the first search space set and the second search space set are different.

[0115] As one embodiment, the time-frequency resources occupied by the first search space set and the time-frequency resources occupied by the second search space set are different.

[0116] As one embodiment, the time-frequency resources occupied by the first search space set and the time-frequency resources occupied by the second search space set are orthogonal.

[0117] As an example, the control resource set (CORESET) associated with the first search space set is different from the control resource set associated with the second search space set.

[0118] As an example, the control resource set (CORESET) associated with the first search space set is the same as the control resource set associated with the second search space set.

[0119] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: The first node device in this application assumes that the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated.

[0120] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set can be correspondingly soft-combined.

[0121] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format payload carried by the PDCCH candidates included in the first search space set is the same as the DCI format payload carried by the corresponding PDCCH candidates included in the second search space set.

[0122] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format carried by the PDCCH candidates included in the first search space set and the DCI format carried by the corresponding PDCCH candidates included in the second search space set are used to schedule the same signal or channel.

[0123] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format carried by one PDCCH candidate included in the first search space set and the DCI format carried by the corresponding PDCCH candidate included in the second search space set are used to schedule the same PDSCH (Physical Downlink Shared Channel) or the same PUSCH (Physical Uplink Shared Channel).

[0124] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format carried by one PDCCH candidate included in the first search space set and the DCI format carried by the corresponding PDCCH candidate included in the second search space set are used to trigger the same reference signal (RS).

[0125] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format carried by one PDCCH candidate included in the first search space set and the DCI format carried by the corresponding PDCCH candidate included in the second search space set are used to schedule the same transport block (TB).

[0126] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: the DCI format carried by one PDCCH candidate included in the first search space set and the DCI format carried by the corresponding PDCCH candidate included in the second search space set are two repeated transmissions of the same DCI format.

[0127] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are associated with each other" includes the following meaning: the ID or index of the first search space set and the ID or index of the second search space set are associated (linked or associated).

[0128] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: there is a mapping relationship between the ID or index of the first search space set and the ID or index of the second search space set.

[0129] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated" includes the following meaning: there is an operational relationship between the ID or index of the first search space set and the ID or index of the second search space set.

[0130] As an example, the statement in the claim that "the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are associated with each other" includes the following meaning: PDCCH candidates with the same aggregation level and the same index value in the first search space set and the second search space set are associated (linked or associated).

[0131] As one embodiment, the correspondence between the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set is predefined or configured by signaling.

[0132] As an example, any PDCCH candidate included in the second search space set corresponds to a PDCCH candidate in the first search space set that has the same aggregation level and the same index value.

[0133] As an example, the number of PDCCH candidates included in the first search space set is equal to the number of PDCCH candidates included in the second search space set, and there is a one-to-one correspondence between the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set.

[0134] As an example, the number of PDCCH candidates with the same aggregation level included in the first search space set is equal to the number of PDCCH candidates with the same aggregation level included in the second search space set, and there is a one-to-one correspondence between the PDCCH candidates with the same aggregation level included in the first search space set and the second search space set.

[0135] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially, and the PDCCH candidates included in the second search space set are indexed sequentially. A PDCCH candidate included in the first search space set corresponds to a PDCCH candidate included in the second search space set that has the same index value.

[0136] As an example, the PDCCH candidates included in the first search space set with a single aggregation level are indexed sequentially, and the PDCCH candidates included in the second search space set with the same aggregation level are indexed sequentially. A PDCCH candidate included in the first search space set corresponds to a PDCCH candidate with the same aggregation level and the same index value included in the second search space set.

[0137] As one embodiment, the PDCCH candidates included in the first search space set in a time window and the PDCCH candidates included in the second search space set in the same time window correspond one-to-one according to predefined rules.

[0138] As one embodiment, the PDCCH candidates included in the first search space set in a time slot and the PDCCH candidates included in the second search space set in the same time slot correspond one-to-one according to predefined rules.

[0139] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially, and the PDCCH candidates included in the second search space set are indexed sequentially. A PDCCH candidate included in the first search space set corresponds to a PDCCH candidate included in the second search space set with an index value having a predefined or signaling configuration offset value.

[0140] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially, and the PDCCH candidates included in the second search space set are indexed sequentially. A PDCCH candidate included in the first search space set corresponds to a PDCCH candidate included in the second search space set with index values ​​in reverse order.

[0141] As an example, the temporal configuration of the first search space set is the same as that of the second search space set.

[0142] As an example, the time-domain period of the first search space set is equal to the time-domain period of the second search space set.

[0143] As one example, the monitoring opportunities (MO) associated with the first search space set and the monitoring opportunities associated with the second search space set are in one-to-one correspondence.

[0144] As an example, the monitoring opportunities (MO) associated with the first search space set and the monitoring opportunities associated with the second search space set are in one-to-one correspondence, and any two corresponding monitoring opportunities belong to the same time slot.

[0145] As one example, the target control signaling includes all or part of the fields included in a DCI format.

[0146] As one example, the target control signaling includes all or part of the fields included in the same DCI format carried by one or more PDCCH alternatives.

[0147] As an example, the target control signaling is carried by only one PDCCH alternative.

[0148] As an example, the first node device in this application assumes that the first PDCCH carries the target control signaling, and the first node device in this application assumes that the second PDCCH carries the target control signaling.

[0149] As one embodiment, the first PDCCH carries the target control signaling, and the second PDCCH carries the target control signaling.

[0150] As one embodiment, the first PDCCH carries control signaling other than the target control signaling, and the second PDCCH carries control signaling other than the target control signaling.

[0151] As one embodiment, the target control signaling includes all or part of the fields included in the same DCI format carried by the first PDCCH and the second PDCCH.

[0152] As an example, the target control signaling is carried by a PDCCH other than the first PDCCH or the second PDCCH.

[0153] As an example, the target control signaling is not carried by the first PDCCH, and the target control signaling is not carried by the second PDCCH.

[0154] As an example, the target control signaling includes a payload in DCI format.

[0155] As one example, the target control signaling includes all or part of a field in a detected DCI format.

[0156] As one example, the target control signaling includes all or part of the fields included in the same DCI format carried by one or more PDCCHs.

[0157] As an example, the target control signaling includes all or part of the fields in the DCI format that have passed CRC verification after soft-merging decoding.

[0158] As an example, the target control signaling includes all or part of the fields in a successfully decoded DCI format.

[0159] As one embodiment, the target control signaling includes all or part of the fields in the DCI format carried by the repeatedly transmitted PDCCH.

[0160] As an example, the target control signaling is all or part of the fields in the DCI format carried by the associated PDCCH.

[0161] As one example, the target control signaling is the same PDCCH transmitted once or multiple times.

[0162] As an example, the target control signaling occupies the same PDCCH that is one or more PDCCH candidates.

[0163] As one embodiment, the target control signaling includes all or part of the fields in the scheduling DCI format of the first signal.

[0164] As one embodiment, the target control signaling includes all or part of the fields in the scheduling DCI format of the PDSCH to which the first signal belongs.

[0165] As one embodiment, the target control signaling includes all or part of the fields in the scheduling DCI format of the PDSCH corresponding to the PTRS.

[0166] As an example, the statement in the claim "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: the target control signaling is used by the first node device in this application to determine the first time-frequency resource set.

[0167] As an example, the statement in the claim "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: the target control signaling is used to explicitly or implicitly indicate the first time-frequency resource set.

[0168] As an example, the statement in the claim "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the first time-frequency resource set.

[0169] As an example, the statement in the claim that "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the time-domain resources included in the first time-frequency resource set.

[0170] As an example, the statement in the claim that "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the first time-frequency resource set from a plurality of alternative time-frequency resource sets.

[0171] As an example, the statement in the claim that "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the frequency domain resources included in the first time-frequency resource set.

[0172] As an example, the statement in the claim that "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the RBs (Resource Blocks) included in the frequency domain and the symbols included in the time domain of the first time-frequency resource set.

[0173] As an example, the statement in the claim that "the target control signaling is used to determine the first time-frequency resource set" includes the following meaning: one or more fields included in the target control signaling are used to explicitly or implicitly indicate the number of REs included in the first time-frequency resource set and the time-frequency location of the included REs.

[0174] As an example, any two different REs (Resource Elements) included in the first time-frequency resource set correspond to the same subcarrier spacing (SCS) and the same cyclic prefix (CP) length.

[0175] As an example, the first time-frequency resource set includes at least one OFDM symbol in the time domain.

[0176] As an example, the first time-frequency resource set includes continuous time-domain resources.

[0177] As one embodiment, the first time-frequency resource set includes discrete time-domain resources.

[0178] As one embodiment, the first time-frequency resource set includes periodic time-domain resources.

[0179] As an example, the first time-frequency resource set includes at least one PRB in the frequency domain.

[0180] As one embodiment, the first time-frequency resource set includes continuous frequency domain resources.

[0181] As one embodiment, the first time-frequency resource set includes discrete frequency domain resources.

[0182] As an example, the first time-frequency resource set includes, in the frequency domain, a PRB (Physical Resource Block) mapped from a VRB (Virtual Resource Block).

[0183] As an example, the first time-frequency resource set includes frequency domain resources before and after frequency hopping (FH).

[0184] As an example, the first signal is a baseband signal or a radio frequency signal.

[0185] As one embodiment, the first signal includes a reference signal.

[0186] As one embodiment, the first signal includes a data signal.

[0187] As an example, the first signal is a baseband signal or a radio frequency signal of PT-RS (Phase Tracking Reference Signal).

[0188] As an example, the first signal is the baseband signal or radio frequency signal of the PDSCH.

[0189] As one embodiment, the first signal includes PT-RS and PDSCH.

[0190] As an example, the first signal includes PDSCH DMRS (Demodulation Reference Signal).

[0191] As one embodiment, the first signal includes CSI-RS (Channel Status Information Reference Signal).

[0192] As one embodiment, the first signal includes PT-RS and CSI-RS.

[0193] As one embodiment, the first signal includes at least one of PT-RS, PDSCH, PDSCH DMRS, and CSI-RS.

[0194] As one embodiment, the first signal includes PT-RS, PDSCH, and PDSCH DMRS.

[0195] As one embodiment, the first signal includes PDSCH and PDSCH DMRS.

[0196] As an example, the first signal carries DL-SCH (Downlink Shared Channel).

[0197] As an example, the first signal is a dynamically scheduled signal.

[0198] As an example, the first signal is a semi-static scheduling (SPS) signal.

[0199] As an example, the first time-frequency resource set is the set of REs allocated to the first signal by the target control signaling.

[0200] As an example, the first time-frequency resource set is the set of REs scheduled by the target control signaling to the first signal.

[0201] As an example, the first time-frequency resource set is the set of REs reserved by the target control signaling for the first signal.

[0202] As an example, the first time-frequency resource set is the set of REs that the target control signaling schedules to the PDSCH including the first signal.

[0203] As an example, any RE occupied by the first signal belongs to the first time-frequency resource set.

[0204] As an example, the first time-frequency resource set is the set of REs that the target control signaling schedules for a PDSCH transmission.

[0205] As an example, the first time-frequency resource set is the set of REs scheduled by the target control signaling for a PDSCH transmission, and the first signal is the PT-RS of the PDSCH scheduled by the target control signaling.

[0206] As an example, the first time-frequency resource set is the set of REs scheduled by the target control signaling for a PDSCH transmission, and the first signal is the DMRS and PT-RS of the PDSCH scheduled by the target control signaling.

[0207] As an example, the first time-frequency resource set includes all REs occupied by the first signal and the REs occupied by the PDSCH to which the first signal belongs.

[0208] As an example, the first PDCCH is a PDCCH alternative.

[0209] As an example, the first PDCCH is an actual transmitted PDCCH.

[0210] As an example, the first PDCCH is a PDCCH alternative that the first node device in this application is assumed to carry the target control signaling.

[0211] As an example, the first PDCCH is an alternative PDCCH in a given DCI format, which is assumed by the first node device in this application.

[0212] As an example, at least one PDCCH or DCI format is detected on the first PDCCH.

[0213] As an example, no PDCCH or DCI format was detected on the first PDCCH.

[0214] As an example, the first PDCCH is a PDCCH alternative that detects that carries the target control signaling.

[0215] As an example, the first PDCCH is a PDCCH alternative monitored by the first node device.

[0216] As an example, the first PDCCH is a baseband signal or radio frequency signal of a PDCCH.

[0217] As an example, the first PDCCH is a PDCCH candidate detected by blind detection based on the DCI format corresponding to the target control signaling.

[0218] As an example, the first PDCCH is included as one of the PDCCH candidates used for blind detection of the target control signaling.

[0219] As an example, the first PDCCH is included as one of the PDCCH alternatives used for soft merging of the target control signaling.

[0220] As an example, the first PDCCH is included as one of the PDCCH alternatives for independent detection of the target control signaling.

[0221] As one example, the time-frequency resources occupied by the second PDCCH are different from those occupied by the first PDCCH.

[0222] As an example, the control resource set (CORESET, ControlResource Set) to which the second PDCCH belongs is different from the control resource set to which the first PDCCH belongs.

[0223] As an example, the CCE (control channel element) occupied by the second PDCCH is different from the CCE occupied by the first PDCCH, or the scrambling code of the second PDCCH is different from the scrambling code of the first PDCCH, or the size of the DCI format carried by the second PDCCH is different from the size of the DCI format carried by the first PDCCH.

[0224] As an example, the index of the control resource set resource pool to which the first PDCCH belongs (CORESETpool index) is not equal to the index of the control resource set resource pool to which the second PDCCH belongs.

[0225] As one embodiment, the quasi-co-addressable reference signals included in the control resource set to which the first PDCCH belongs are different from the quasi-co-addressable reference signals included in the control resource set to which the second PDCCH belongs.

[0226] As an example, the second PDCCH was not detected.

[0227] As an example, the second PDCCH is detected.

[0228] As an example, PDCCH decoding or DCI format decoding performed on a PDCCH candidate set that includes at least the second PDCCH fails (or CRC check fails).

[0229] As an example, the PDCCH decoding or DCI format decoding performed on the second PDCCH fails (or the CRC check fails).

[0230] As an example, it is detected that the second PDCCH is occupied by either PDCCH or DCI format.

[0231] As an example, no PDCCH or DCI format was detected to be occupied on the second PDCCH.

[0232] As an example, a PDCCH is actually transmitted on the first PDCCH.

[0233] As an example, the second PDCCH is a PDCCH alternative that the first node device in this application is assumed to carry the same control signaling as the first PDCCH.

[0234] As an example, the second PDCCH is a PDCCH alternative monitored by the first node device.

[0235] As an example, the second PDCCH is a baseband signal or radio frequency signal of a PDCCH.

[0236] As an example, the polymerization level of the first PDCCH is equal to that of the second PDCCH.

[0237] As an example, the index of the first PDCCH in the first search space set and the index of the second PDCCH in the second search space set are equal.

[0238] As an example, the control signaling carried by the second PDCCH is the same as that carried by the first PDCCH.

[0239] As an example, the second PDCCH and the first PDCCH are repeated transmissions of the same DCI format.

[0240] As an example, the second PDCCH and the first PDCCH are repeated transmissions of the same PDCCH.

[0241] As one embodiment, the second PDCCH and the first PDCCH are two PDCCH candidates that are related to each other in the first search space set and the second search space set, respectively.

[0242] As one embodiment, the second PDCCH and the first PDCCH are two corresponding PDCCH candidates in the first search space set and the second search space set, respectively.

[0243] As an example, the first node device in this application assumes that soft merging is possible between the first PDCCH and the second PDCCH.

[0244] As an example, the first node device in this application assumes that soft merging is not possible between the first PDCCH and the second PDCCH.

[0245] As an example, the first information block is used to indicate whether a soft merge can be performed between the first PDCCH and the second PDCCH.

[0246] As an example, information blocks other than the first information block are used to indicate whether a soft merge can be performed between the first PDCCH and the second PDCCH.

[0247] As an example, the total number of monitoring operations performed on the first PDCCH and the second PDCCH is equal to 2.

[0248] As an example, the total number of monitoring operations performed on the first PDCCH and the second PDCCH is equal to 3.

[0249] As an example, the first information block in this application is used to configure the total number of monitoring operations performed on the first PDCCH and the second PDCCH.

[0250] As an example, information blocks other than the first information block in this application are used to configure the total number of monitoring operations performed on the first PDCCH and the second PDCCH.

[0251] As an example, any RE included in the target time-frequency resource subset is not occupied or used by the first signal.

[0252] As an example, the target time-frequency resource subset is orthogonal to the time-frequency resources occupied by the first signal.

[0253] As an example, the first signal occupies only REs other than those included in the target time-frequency resource subset.

[0254] As an example, there are overlapping REs between the target time-frequency resource subset and the first time-frequency resource set.

[0255] As an example, any RE included in the target time-frequency resource subset is a RE that is rate-matched by the first signal rate.

[0256] As an example, any RE included in the target time-frequency resource subset is a RE that is skipped by the first signal.

[0257] As an example, the first signal is punched on any RE included in the target time-frequency resource subset.

[0258] As an example, at least one RE included in the target time-frequency resource subset is rate-matched by the first signal rate.

[0259] As an example, at least one RE included in the target time-frequency resource subset is skipped by the first signal.

[0260] As one embodiment, the first signal is punched on at least one RE included in the target time-frequency resource subset.

[0261] As an example, any RE included in the target time-frequency resource subset is a RE that collides with the first signal, other than the first signal.

[0262] As an example, any RE included in the target time-frequency resource subset is a signal other than the first signal and an RE that is expected or configured to collide with the first signal.

[0263] As an example, any RE included in the target time-frequency resource subset belongs to the first time-frequency resource set.

[0264] As an example, the target time-frequency resource subset includes a RE that does not belong to the first time-frequency resource set.

[0265] As an example, the target time-frequency resource subset includes a RE that belongs to a subset outside the first time-frequency resource set.

[0266] As one embodiment, the target time-frequency resource subset includes time-domain continuous REs.

[0267] As an example, the target time-frequency resource subset includes time-domain discrete REs.

[0268] As an example, the target time-frequency resource subset includes frequency-domain continuous REs.

[0269] As an example, the target time-frequency resource subset includes frequency-domain discrete REs.

[0270] As an example, the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0271] As an example, the target time-frequency resource subset does not include any RE occupied by the first PDCCH.

[0272] As an example, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0273] As an example, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0274] As an example, the statement "whether the first PDCCH is detected" in the claim means: whether the first PDCCH is occupied by the detected PDCCH or the detected DCI format.

[0275] As an example, the statement "whether the first PDCCH is detected" in the claim means: whether the first PDCCH is detected for transmitting DCI format.

[0276] As an example, the statement "whether the first PDCCH is detected" in the claim means whether the first PDCCH is occupied by a signal or channel other than the first signal.

[0277] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the blind detection (BD, BlindDetection / Decoding) performed on the first PDCCH is successful.

[0278] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the blind detection (BD) of PDCCH performed on a set of PDCCH candidates that includes at least the first PDCCH is successful.

[0279] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the blind detection (BD, BlindDetection / Decoding) of PDCCH performed jointly (or combined) on the first PDCCH and the second PDCCH is successful.

[0280] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the PDCCH decoding or DCI format decoding performed on the first PDCCH is successful (or whether the CRC check passes).

[0281] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the PDCCH decoding or DCI format decoding performed on the PDCCH candidate set including at least the first PDCCH is successful (or whether the CRC check passes).

[0282] As an example, the statement "whether the first PDCCH is detected" in the claim refers to whether the PDCCH decoding or DCI format decoding performed jointly (or combined) on the first PDCCH and the second PDCCH is successful (or whether the CRC check passes).

[0283] As an example, the statement in the claim "whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the first PDCCH is detected as being used by the first node device in this application to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0284] As an example, the statement in the claim "whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH according to a conditional relationship.

[0285] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0286] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0287] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0288] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0289] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal.

[0290] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

[0291] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected and the second PDCCH is not dropped, or when the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal.

[0292] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the first PDCCH is detected and the second PDCCH is not dropped, or when the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

[0293] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected and the second PDCCH is not dropped, any RE occupied by the second PDCCH is not occupied by the first signal.

[0294] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected and the second PDCCH is monitored, or when the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal.

[0295] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected and the second PDCCH is monitored, or when the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

[0296] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is detected and the second PDCCH is monitored, any RE occupied by the second PDCCH is not occupied by the first signal.

[0297] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

[0298] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal.

[0299] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is not discarded and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

[0300] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is not discarded and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal.

[0301] As an example, whether the second PDCCH is detected is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0302] As an example, whether the second PDCCH is discarded is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0303] As an example, whether the second PDCCH is monitored is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0304] As an example, whether the second PDCCH is included in the monitoring count is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0305] As an example, "a RE is occupied by the first signal" and "the first signal resource is mapped to a RE" are equivalent or can be used interchangeably.

[0306] As an example, "a RE is not occupied by the first signal" and "the first signal does not have a resource mapped to a RE" are equivalent or can be used interchangeably.

[0307] As an example, "the target time-frequency resource subset includes a RE" and "a RE is not occupied (or used, or mapped) by the first signal" are equivalent or can be used interchangeably.

[0308] As an example, "the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" and "the RE occupied by the second PDCCH is not occupied (or used, or mapped) by the first signal" are equivalent or can be used interchangeably.

[0309] As an example, "the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" and "the RE occupied by the first PDCCH is not occupied (or used, or mapped) by the first signal" are equivalent or can be used interchangeably.

[0310] As an example, "the index of the second PDCCH in the second search space set is equal to the index of the first PDCCH in the first search space set" and "the second PDCCH and the first PDCCH are associated" are equivalent or can be used interchangeably.

[0311] As an example, the first PDCCH and the second PDCCH can be used interchangeably.

[0312] Example 2

[0313] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2This diagram illustrates the network architecture 200 of 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. 5GS / EPS 200 may include one or more UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 5GS / EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR / Evolved Node B (gNB / eNB) 203 and other gNBs (eNBs) 204. gNBs (eNBs) 203 provide user and control plane protocol termination to UE 201. gNBs (eNBs) 203 can connect to other gNBs (eNBs) 204 via Xn / X2 interfaces (e.g., backhaul). gNBs (eNBs) 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable terminology. gNBs (eNBs) 203 provide UE 201 with an access point to the 5GC / EPC 210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, 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 IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices.Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. gNB (eNB)203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​Essentially, the MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0314] As an example, the UE201 corresponds to the first node device in this application.

[0315] As an example, the UE201 supports the transmission of PDCCH across multiple TRPs or multiple panels.

[0316] As an example, the gNB(eNB)201 corresponds to the second node device in this application.

[0317] As an example, the gNB (eNB) 201 supports the transmission of PDCCH across multiple TRPs or multiple panels.

[0318] Example 3

[0319] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first node device (UE or gNB) and the second node device (gNB or UE) is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first and second node devices via PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security through encrypted data packets and supports cross-regional mobility between the second node devices and the first node device. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among first-node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second-node devices and the first-node devices. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first and second node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity.Although not illustrated, the first node device may have several upper layers above the L2 layer 355, including a network layer (e.g., 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., remote UE, server, etc.).

[0320] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node device in this application.

[0321] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node device in this application.

[0322] As an example, the first information block in this application is generated in RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0323] As an example, the target control signaling in this application is generated in the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0324] As an example, the first signal in this application is generated by the RRC306, or MAC302, or MAC352, or PHY301, or PHY351.

[0325] As an example, the second signal in this application is generated in the PHY301 or PHY351.

[0326] Example 4

[0327] Example 4 illustrates a schematic diagram of a first node device and a second node device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown.

[0328] The first node device (450) may include a controller / processor 490, a data source / buffer 480, a receiver processor 452, a transmitter / receiver 456 and a transmitter processor 455, wherein the transmitter / receiver 456 includes an antenna 460.

[0329] The second node device (410) may include a controller / processor 440, a data source / buffer 430, a receiver processor 412, a transmitter / receiver 416 and a transmitter processor 415, wherein the transmitter / receiver 416 includes an antenna 420.

[0330] In the DL (Downlink), upper-layer packets, such as the higher-layer information included in the first information block and the higher-layer information included in the first signal (if the first signal includes higher-layer information), are provided to the controller / processor 440. The controller / processor 440 implements L2 and higher-layer functions. In the DL, the controller / processor 440 provides header compression, encryption, packet segmentation and reordering, multiplexing between logic and transport channels, and radio resource allocation to the first node device 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first node device 450, such as the higher-layer information included in the first information block and the higher-layer information included in the first signal (if the first signal includes higher-layer information), which are all generated in the controller / processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation. For example, the generation of the physical layer signal of the first information block and the physical layer signal of the first signal in this application is completed in the transmit processor 415, as are the generation of the target control signaling and the second signal. The generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol. Then, the transmit processor 415 maps the mapping to the antenna 420 via the transmitter 416 and transmits it as a radio frequency signal. At the receiving end, each receiver 456 receives the radio frequency signal through its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receiver processor 452. The receiver processor 452 implements various signal reception processing functions for the L1 layer. The signal reception and processing function includes receiving the physical layer signals of the first information block and the first signal in this application, as well as the target control signaling and the second signal in this application. It demodulates the multi-carrier symbols in the multi-carrier symbol stream using various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), then descrambles, decodes, and deinterleaves to recover the data or control transmitted by the second node device 410 on the physical channel. The data and control signals are then provided to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and interprets the higher-level information (if the first signal includes higher-level information) included in the first information block and the first signal in this application. The controller / processor may be associated with a memory 480 that stores program code and data. The memory 480 may be referred to as computer-readable media.

[0331] As one embodiment, the first node device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first node device 450 at least: receives a first information block, the first information block being used to determine a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, the first search space set and the second search space set being different; receives target control signaling and receives a first signal, the target control signaling being used to determine a first time-frequency resource set, the first time-frequency resource set including a plurality of REs. The first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE in the first time-frequency resource set other than the RE occupied by the first signal; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0332] As one embodiment, the first node device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first information block used to determine a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, the first search space set and the second search space set being different; receiving target control signaling and receiving a first signal used to determine a first time-frequency resource set, the first time-frequency resource set including a plurality of REs, the first signal occupying at least one RE in the time-frequency domain. Any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE in the first time-frequency resource set other than the RE occupied by the first signal; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0333] As one embodiment, the second node device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second node device 410 at least: transmits a first information block, the first information block being used to indicate a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, the first search space set and the second search space set being different; transmits target control signaling and transmits a first signal, the target control signaling being used to indicate a first time-frequency resource set, the first time-frequency resource set including a plurality of REs, the first signal occupying at least one RE in the time-frequency domain, any RE occupied by the first signal in the time-frequency domain belonging to the first time-frequency resource set. The source set; wherein the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0334] As one embodiment, the second node device 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first information block, the first information block being used to indicate a first search space set and a second search space set, the first search space set including at least one PDCCH candidate, the second search space set including at least one PDCCH candidate, the first search space set and the second search space set being different; sending target control signaling and sending a first signal, the target control signaling being used to indicate a first time-frequency resource set, the first time-frequency resource set including a plurality of REs, the first signal occupying at least one RE in the time-frequency domain. Any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; the first PDCCH is a PDCCH candidate included in the first search space set, and the second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; the target time-frequency resource subset includes at least one RE in the first time-frequency resource set other than the RE occupied by the first signal; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0335] As an example, the first node device 450 is a user equipment (UE).

[0336] As an example, the first node device 450 is a user equipment that supports multiple TRPs or multiple panel PDCCH transmissions.

[0337] As one embodiment, the second node device 410 is a base station device (gNB / eNB).

[0338] As an example, the second node device 410 is a base station device that supports multi-TRP or multi-panel PDCCH transmission.

[0339] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used in this application to receive the first information block.

[0340] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used in this application to receive the target control signaling.

[0341] As one embodiment, receiver 456 (including antenna 460), receiver processor 452 and controller / processor 490 are used in this application to receive the first signal.

[0342] As one embodiment, receiver 456 (including antenna 460) and receiver processor 4520 are used in this application to receive the first signal.

[0343] As one embodiment, receiver 456 (including antenna 460) and receiver processor 4520 are used in this application to receive the second signal.

[0344] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the first information block in this application.

[0345] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the target control signaling described in this application.

[0346] As one embodiment, transmitter 416 (including antenna 420), transmitter processor 415 and controller / processor 440 are used to transmit the first signal in this application.

[0347] As one embodiment, transmitter 416 (including antenna 420) and transmitter processor 415 are used to transmit the first signal in this application.

[0348] As one embodiment, transmitter 416 (including antenna 420) and transmitter processor 415 are used to transmit the second signal in this application.

[0349] Example 5

[0350] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this example, the second node device N500 is the base station maintaining the serving cell of the first node device U550. It should be noted that the order in this example does not limit the signal transmission order or the order of implementation in this application.

[0351] for Second node device N500 In step S501, a first information block is sent; in step S502, a target control signaling is sent; in step S503, a first signal is sent; and in step S504, a second signal is sent.

[0352] for First node device U550In step S551, a first information block is received; in step S552, a target control signaling is received; in step S553, a first signal is received; and in step S554, a second signal is received.

[0353] In embodiment 5, the first information block is used to determine a first search space set and a second search space set. The first search space set includes at least one PDCCH candidate, and the second search space set includes at least one PDCCH candidate. The first search space set and the second search space set are not the same. The target control signaling is used to determine a first time-frequency resource set. The first time-frequency resource set includes multiple REs. The first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set. The PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated. The first PDCCH is the first search space. The set includes a PDCCH candidate, and the second PDCCH is a PDCCH candidate associated with the first PDCCH included in the second search space set; the target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; the second signal occupies a reference time-frequency resource group, which includes at least one RE; the first signal and the second signal are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0354] As an example, the target control signaling precedes the first signal.

[0355] As an example, the target control signaling is later than the first signal.

[0356] As one embodiment, the target control signaling and the first signal are transmitted simultaneously.

[0357] As one example, the second signal precedes the first signal.

[0358] As one example, the second signal is later than the first signal.

[0359] As one embodiment, the second signal and the first signal are transmitted simultaneously.

[0360] Example 6

[0361] Example 6 illustrates a schematic diagram of the relationship between a first control resource set and a second control resource set according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown. In the appendix Figure 6 In the above, the first control resource set and the second control resource set correspond to antenna (antenna port) #1 and antenna (antenna port) #2, respectively.

[0362] In Embodiment 6, the control resource set associated with the first search space set in this application is a first control resource set; the control resource set associated with the second search space set in this application is a second control resource set; the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are different.

[0363] As an example, the first information block in this application is used to indicate the control resource set (CORESET) associated with the first search space set.

[0364] As an example, the first information block in this application is used to indicate the control resource set (CORESET) associated with the second search space set.

[0365] As an example, the information blocks other than the first information block in this application are used to indicate the control resource set (CORESET) associated with the first search space set.

[0366] As an example, the information blocks other than the first information block in this application are used to indicate the control resource set (CORESET) associated with the second search space set.

[0367] As one embodiment, the control resource set associated with the first search space set is the control resource set to which the PDCCH candidates included in the first search space set belong, and the control resource set associated with the second search space set is the control resource set to which the PDCCH candidates included in the second search space set belong.

[0368] As one embodiment, the control resource set associated with the first search space set is the control resource set to which the CCE occupied by the PDCCH candidates included in the first search space set belongs, and the control resource set associated with the second search space set is the control resource set to which the CCE occupied by the PDCCH candidates included in the second search space set belongs.

[0369] As one embodiment, the control resource set associated with the first search space set is the control resource set with which the first search space set is configured to have an association relationship, and the control resource set associated with the second search space set is the control resource set with which the second search space set is configured to have an association relationship.

[0370] As an example, the first control resource set is a CORESET, and the second control resource set is a CORESET.

[0371] As one embodiment, the first set of control resources and the second set of control resources are different.

[0372] As one embodiment, the time-frequency resources occupied by the first control resource set and the time-frequency resources occupied by the second control resource set are different.

[0373] As an example, the time-frequency resources occupied by the first control resource set are the same as those occupied by the second control resource set.

[0374] As an example, the number of RBs included in the first control resource set in the frequency domain is equal to the number of RBs included in the second control resource set in the frequency domain; the number of symbols included in the first control resource set in the time domain is equal to the number of symbols included in the second control resource set in the time domain; the CCE to REG (Resource Element Group) mapping type used by the first control resource set is the same as the CCE to REG mapping type used by the second control resource set; and the precoder granularity of the first control resource set is the same as the precoder granularity of the second control resource set.

[0375] As one embodiment, the first control resource set employs an interleaved CCE-to-REG mapping, and the second control resource set employs an interleaved CCE-to-REG mapping.

[0376] As an example, the first control resource set uses a non-interleaved CCE-to-REG mapping, and the second control resource set uses a non-interleaved CCE-to-REG mapping.

[0377] As one embodiment, the number of rows in the interleaver of the first control resource set is equal to the number of rows in the interleaver of the second control resource set.

[0378] As an example, the configuration of the first control resource set is the same as the configuration of the second control resource set.

[0379] As an example, the configurations outside the quasi-co-location (QCL) of the first control resource set are the same as the configurations outside the quasi-co-location of the second control resource set.

[0380] As an example, the reference signal included in the first control resource set is PDCCH (Physical Downlink Control Channel) DMRS (Demodulation Reference Signal), and the reference signal included in the second control resource set is PDCCHDMRS.

[0381] As one embodiment, the reference signals included in the first control resource set are reference signals for PDCCH reception, and the reference signals included in the second control resource set are reference signals for PDCCH reception.

[0382] As one embodiment, the reference signal included in the first control resource set is at least one PDCCH candidate reference signal included in the first control resource set, and the reference signal included in the second control resource set is at least one PDCCH candidate reference signal included in the second control resource set.

[0383] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located with different reference signals (QCL).

[0384] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located with different antenna ports (QCL).

[0385] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located (QCL) with reference signals occupying different time-frequency resources.

[0386] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located (QCL) with SS / PBCH (Synchronization Signal / Physical Broadcast Channel) blocks with different indices.

[0387] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located (QCL) with CSI-RS (Channel Status Information Reference Signal) of different antenna ports.

[0388] As an example, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the reference signals included in the first control resource set and the reference signals included in the second control resource set are respectively quasi-co-located (QCL) with CSI-RS (Channel Status Information Reference Signal) occupying different time-frequency resources.

[0389] As an example, the statement in the claim that "the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same" includes the following meaning: the first node device in this application assumes that the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same.

[0390] As an example, the statement in the claim that "the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same" includes the following meaning: the first node device in this application cannot assume that the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are the same.

[0391] As an example, the statement in the claim that "the quasi-co-addressable of the reference signals included in the first control resource set and the quasi-co-addressable of the reference signals included in the second control resource set are not the same" includes the following meaning: the TCI (Transmission Configuration Indication) state of the reference signals included in the first control resource set and the TCI state of the reference signals included in the second control resource set are not the same.

[0392] As an example, the statement in the claim that "the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same" includes the following meaning: the first node device in this application assumes that the TCI state of the reference signals included in the first control resource set and the TCI state of the reference signals included in the second control resource set are not the same.

[0393] As an embodiment, the statement in the claim that "the quasi-co-location of the reference signals included in the first control resource set and the quasi-co-location of the reference signals included in the second control resource set are not the same" includes the following meaning: the antenna port quasi-co-location of the reference signals included in the first control resource set and the antenna port quasi-co-location of the reference signals included in the second control resource set are not the same.

[0394] As an example, the statement in the claim that "the quasi-co-addressable type of the reference signals included in the first control resource set is different from that of the reference signals included in the second control resource set" includes the following meaning: the quasi-co-addressable type (QCLtype) of the reference signals included in the first control resource set is different from that of the reference signals included in the second control resource set.

[0395] As an example, the statement in the claim that "the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same" includes the following meaning: the quasi-co-addressable type (QCLtype) of the reference signals included in the first control resource set and the quasi-co-addressable type (QCL type) of the reference signals included in the second control resource set are the same.

[0396] As one embodiment, the first transceiver receives a second information block, wherein the second information block is used to determine a target standard co-address set, the target standard co-address set including a positive integer number of antenna port quasi-co-addresses greater than 1, the quasi-co-address of the reference signal included in the first control resource set is one antenna port quasi-co-address included in the target standard co-address set, and the quasi-co-address of the reference signal included in the second control resource set is one antenna port quasi-co-address included in the target standard co-address set. As a supplementary embodiment of the above embodiment, the second information block and the first information block are different. As a supplementary embodiment of the above embodiment, the second information block and the first information block are the same. As a supplementary embodiment of the above embodiment, the second information block and the first information block are two different IEs or domains in the same signaling.

[0397] As an example, the statement in the claim that "the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are not the same" includes the following meaning: the index value of the control resource set resource pool to which the first control resource set belongs is not equal to the index value of the control resource set resource pool to which the second control resource set belongs.

[0398] As an example, the index value of the control resource set resource pool (CORESETPool) to which the first control resource set belongs is not equal to the index value of the control resource set resource pool (CORESETPool) to which the second control resource set belongs.

[0399] The index value of the control resource set pool to which the first control resource set belongs is equal to the index value of the control resource set pool to which the second control resource set belongs.

[0400] Example 7

[0401] Example 7 illustrates a schematic diagram of the relationship between the first PDCCH and the second PDCCH according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 In scenarios A and B, the horizontal axis represents time, and the vertical axis represents frequency. Each thick-lined rectangle represents a set of control resources associated with a search space set. Rectangles filled with crosshairs represent the first PDCCH, rectangles filled with intersecting lines represent the second PDCCH, rectangles filled with dots represent PDCCH candidates with the same aggregation level as the first PDCCH included in the first search space set, and rectangles filled with diagonal lines represent PDCCH candidates with the same aggregation level as the second PDCCH included in the second search space set. Dashed lines with arrows represent interrelationships. In scenario A, the first and second PDCCHs are time-division multiplexed; in scenario B, the first and second PDCCHs are frequency-division multiplexed.

[0402] In Embodiment 7, the aggregation level of the first PDCCH in this application is equal to the aggregation level of the second PDCCH in this application, the index of the first PDCCH in the first search space set in this application is equal to the index of the second PDCCH in the second search space set in this application, and the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset in this application includes at least one RE occupied by the first PDCCH.

[0403] As an example, the aggregation level (AL) of the first PDCCH is equal to the number of CCEs included in the first PDCCH, and the aggregation level (AL) of the second PDCCH is equal to the number of CCEs included in the second PDCCH.

[0404] As an example, the aggregation level (AL) of the first PDCCH is equal to one of 1, 2, 4, 8, and 16, and the aggregation level (AL) of the second PDCCH is equal to one of 1, 2, 4, 8, and 16.

[0405] As an example, the aggregation level of the first PDCCH is a positive integer, and the aggregation level of the second PDCCH is a positive integer.

[0406] As an example, the index of the first PDCCH in the first search space set is a non-negative integer, and the index of the second PDCCH in the first search space set is a non-negative integer.

[0407] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially, and the index of the first PDCCH in the first search space set is the index value of the PDCCH candidate corresponding to the first PDCCH; the PDCCH candidates included in the second search space set are indexed sequentially, and the index of the second PDCCH in the second search space set is the index value of the PDCCH candidate corresponding to the second PDCCH.

[0408] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially according to predefined rules, and the index of the first PDCCH in the first search space set is the index value of the PDCCH candidate corresponding to the first PDCCH; the PDCCH candidates included in the second search space set are indexed sequentially according to predefined rules, and the index of the second PDCCH in the second search space set is the index value of the PDCCH candidate corresponding to the second PDCCH.

[0409] As an example, the aggregation level of the first PDCCH and the aggregation level of the second PDCCH are both equal to the target aggregation level. The index of the first PDCCH in the first search space set is the index of the first PDCCH in the first search space set that is a candidate PDCCH with the target aggregation level. The index of the second PDCCH in the second search space set is the index of the second PDCCH in the second search space set that is a candidate PDCCH with the target aggregation level.

[0410] As one embodiment, the PDCCH candidates included in the first search space set are indexed sequentially according to their occupied starting CCEs, and the index of the first PDCCH in the first search space set is the index value of the PDCCH candidate corresponding to the first PDCCH; the PDCCH candidates included in the second search space set are indexed sequentially according to their occupied starting CCEs, and the index of the second PDCCH in the second search space set is the index value of the PDCCH candidate corresponding to the second PDCCH.

[0411] As an example, the index of the first PDCCH in the first search space set is the index of the first PDCCH. The value of the second PDCCH, where the index of the second PDCCH in the second search space set is the value of the second PDCCH. The value of .

[0412] As an example, the control signaling carried by the second PDCCH is in DCI format, and the control signaling carried by the first PDCCH is in DCI format.

[0413] As one embodiment, the control signaling carried by the second PDCCH includes all or part of the fields in a DCI format, and the control signaling carried by the first PDCCH includes all or part of the fields in a DCI format.

[0414] As one embodiment, the control signaling carried by the second PDCCH includes a DCI payload in a DCI format, and the control signaling carried by the first PDCCH also includes a DCI payload in a DCI format.

[0415] As an example, the control signaling carried by the second PDCCH is the DCI format used when monitoring the second PDCCH, and the control signaling carried by the first PDCCH is the DCI format used when monitoring the first PDCCH.

[0416] As an example, the values ​​of the corresponding fields included in the control signaling carried by the second PDCCH and the control signaling carried by the first PDCCH are equal.

[0417] In one embodiment, the values ​​of the corresponding parameters included in the control signaling carried by the second PDCCH and the control signaling carried by the first PDCCH are equal.

[0418] As an example, the control signaling carried by the second PDCCH and the control signaling carried by the first PDCCH are a DCI format repetition transmission.

[0419] As an example, the first node device in this application assumes that the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH.

[0420] As an example, the statement in the claim "whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: whether the first PDCCH is detected as being used by the first node device in this application to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0421] As an example, the statement in the claim "whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: whether the first PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH according to a conditional relationship.

[0422] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0423] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the first PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the first PDCCH.

[0424] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0425] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the first PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the first PDCCH.

[0426] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal.

[0427] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal; otherwise, the RE occupied by the first PDCCH can be occupied by the first signal.

[0428] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is not dropped and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal.

[0429] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is not dropped and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal; otherwise, the RE occupied by the first PDCCH can be occupied by the first signal.

[0430] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is not discarded and the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal.

[0431] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is monitored and the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal.

[0432] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH" includes the following meaning: when the first PDCCH is monitored and at least one of the first PDCCH or the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal; otherwise, the RE occupied by the first PDCCH can be occupied by the first signal.

[0433] As an example, the statement in the claim "whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the first PDCCH is monitored and the second PDCCH is detected, any RE occupied by the first PDCCH is not occupied by the first signal.

[0434] As an example, whether the second PDCCH is detected is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0435] As an example, whether the first DCCH is discarded is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0436] As an example, whether the first PDCCH is monitored is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0437] As an example, whether the first PDCCH is included in the monitoring count is also used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0438] Example 8

[0439] Example 8 illustrates a schematic diagram of a target value according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 The text presents two candidate target values ​​and their corresponding distributions on the first and second PDCCHs. In each case, the rectangle filled with diagonal lines represents the second PDCCH, the rectangle filled with intersecting lines represents the first PDCCH, and the numbers within the rectangles represent the number of times the target value is monitored on the corresponding PDCCH candidate.

[0440] In Example 8, the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH in this application, and the target value is a positive integer; whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset in this application includes at least one RE occupied by the second PDCCH.

[0441] As an example, the target value is equal to either 2 or 3.

[0442] As an example, the target value can be greater than 3.

[0443] As an example, the first information block is used to indicate the target value.

[0444] As an example, information blocks other than the first information block are used to indicate the target value.

[0445] As an example, the target value is equal to the total budget value of blind detection allocated on the first PDCCH and the second PDCCH.

[0446] As an example, the target value is equal to the total number of channel decoding operations performed on the first PDCCH and the second PDCCH.

[0447] As an example, the target value is equal to the total number of channel decoding operations performed on the first PDCCH and the second PDCCH for a DCI format.

[0448] As an example, the target value is equal to the total number of channel decodings performed on the first PDCCH and the second PDCCH for a DCI payload size.

[0449] As an example, the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH by the second node device configured in this application.

[0450] As an example, the total number of monitoring operations actually performed on the first PDCCH and the second PDCCH is related to the first node device implementation in this application.

[0451] As an example, the target value is equal to the total number of monitoring counts on the first PDCCH and the second PDCCH.

[0452] As an example, the target value is equal to the total number of monitoring counts for overbooking on the first PDCCH and the second PDCCH.

[0453] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the second PDCCH is monitored or at least one of the target values ​​is used by the first node device or the second node device in this application to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0454] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the second PDCCH is monitored and the target value are both used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0455] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the second PDCCH is monitored is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0456] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: the target value is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0457] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the second PDCCH is discarded or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0458] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored, whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0459] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the second PDCCH is monitored, whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include at least one RE occupied by the second PDCCH.

[0460] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0461] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0462] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored and at least one of the second PDCCH or the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0463] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the second PDCCH is monitored and at least one of the second PDCCH or the first PDCCH is detected, the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0464] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the target value is equal to a given value, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH; the given value is a predefined or fixed positive integer.

[0465] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the target value is equal to a given value, whether the second PDCCH or at least one of the first PDCCH is detected and used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, whether the second PDCCH is detected and used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; the given value is a predefined or fixed positive integer.

[0466] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the target value is equal to a given value, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; the given value is a predefined or fixed positive integer.

[0467] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the target value is equal to a given value and the second PDCCH is monitored, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH; the given value is a predefined or fixed positive integer.

[0468] As an example, the statement in the claim "whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the target value is equal to a given value and the second PDCCH is monitored, whether the second PDCCH or at least one of the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; the given value is a predefined or fixed positive integer.

[0469] As one embodiment, whether there is overlap between the REs occupied by the second PDCCH and the characteristic time-frequency resource set is used to determine whether the second PDCCH is being monitored. The characteristic time-frequency resource set includes at least one RE, and the characteristic time-frequency resource set is predefined or configured by signaling. As a supplementary embodiment of the above embodiment, the characteristic time-frequency resource set includes the REs occupied by the SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block. As a supplementary embodiment of the above embodiment, the characteristic time-frequency resource set includes the REs occupied by the LTE CRS (Common Reference Signal). As a supplementary embodiment of the above embodiment, "whether the second PDCCH is being monitored" and "whether there is overlap between the REs occupied by the second PDCCH and the characteristic time-frequency resource set" are equivalent or can be used interchangeably. As an auxiliary embodiment of the above embodiments, the characteristic time-frequency resource set is configured by the signaling of "lte-CRS-ToMatchAround", "LTE-CRS-PatternList-r16", "RateMatchPattern", or "availableRB-SetPerCell-r16". As an auxiliary embodiment of the above embodiments, the characteristic time-frequency resource set includes REs occupied by PRACH (Physical Random Access Channel). As an auxiliary embodiment of the above embodiments, the characteristic time-frequency resource set includes REs configured for use on uplink symbols. As an auxiliary embodiment of the above embodiments, the characteristic time-frequency resource set includes REs indicated by DCI format 2_1 as reserved on RBs or reserved time-domain symbols. As an auxiliary embodiment of the above embodiments, the characteristic time-frequency resource set includes resources of CORESETs that are abandoned due to QCL type D conflicts.

[0470] As an example, "whether the second PDCCH is monitored" and "whether the second PDCCH is discarded" are equivalent or can be used interchangeably.

[0471] As an example, "the second PDCCH is monitored" and "the second PDCCH is not discarded" are equivalent or can be used interchangeably.

[0472] As an example, "the second PDCCH is not monitored" and "the second PDCCH is discarded" are equivalent or can be used interchangeably.

[0473] As an example, "whether the second PDCCH is monitored" and "whether at least one PDCCH decoding or blind detection is performed in the PDCCH candidate set including the second PDCCH" are equivalent or can be used interchangeably.

[0474] As an example, "whether the second PDCCH is monitored" and "whether the second PDCCH is included in the number of monitoring or blind detection" are equivalent or can be used interchangeably.

[0475] Example 9

[0476] Example 9 illustrates a schematic diagram illustrating the relationship between the second PDCCH and the first and second thresholds according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown. In the appendix Figure 9 In the diagram, the horizontal axis represents time, and each thick-lined rectangle represents a search space set, a0, a1, a2, ..., a j These represent the number of PDCCH monitoring times in the corresponding search space set, b0, b1, b2, ..., b j These represent the number of non-overlapping CCEs occupied by the PDCCH candidates monitored in the corresponding search space set; where b0+b1≤second threshold and a0+a1≤first threshold, and a0+a1+a2≥first threshold or b0+b1+b2≥second threshold.

[0477] In Embodiment 9, at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; the first threshold is equal to the maximum number of PDCCH monitoring times by the receiver of the target control signaling in the first time window and on the first BWP, and the first threshold is a positive integer; the second threshold is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling in the first time window and on the first BWP, and the second threshold is a positive integer; the second search space set, the first threshold, and the second threshold in this application are used together to determine whether the second PDCCH is monitored.

[0478] As an example, the first time window is a time slot.

[0479] As an example, the first time window is a subframe.

[0480] As an example, the first time window is a span.

[0481] As an example, the first time window is a time window for a subcarrier spacing (SCS).

[0482] As one embodiment, the first time window includes at least one time-domain continuous symbol.

[0483] As an example, any symbol occupied by the second PDCCH in the time domain belongs to the first time window.

[0484] As an example, the symbol occupied by the second PDCCH in the time domain belongs to outside the first time window.

[0485] As an example, any symbol occupied by the second PDCCH in the time domain is an OFDM symbol.

[0486] As an example, any symbol occupied by the second PDCCH in the time domain is an OFDM symbol for a subcarrier interval.

[0487] As an example, any symbol occupied by the second PDCCH in the time domain includes a cyclic prefix and a data portion.

[0488] As an example, the second PDCCH occupies at least one symbol in the time domain.

[0489] As an example, the second PDCCH occupies at least one subcarrier in the frequency domain.

[0490] As an example, any subcarrier occupied by the second PDCCH in the frequency domain belongs to the first BWP (Bandwidth Part).

[0491] As an example, the subcarrier occupied by the second PDCCH in the frequency domain belongs to the first BWP.

[0492] As an example, the first information block is used to configure the first BWP.

[0493] As an example, information blocks other than the first information block are used to configure the first BWP.

[0494] As an example, the first BWP is an active BWP.

[0495] As an example, the first BWP is the default BWP.

[0496] As an example, the first BWP is the initial BWP.

[0497] As an example, the first threshold is greater than 1.

[0498] As an example, the first threshold can be equal to 1.

[0499] As one example, the first threshold is either predefined or configured by signaling.

[0500] As an example, the first threshold is related to the capability of the first node device.

[0501] As an example, the capability report of the first node device is used to explicitly or implicitly indicate the first threshold.

[0502] As an example, the first threshold is related to the subcarrier spacing of the first BWP.

[0503] As one example, the first threshold is related to the number of serving cells configured for the first node device.

[0504] As one embodiment, the first threshold is related to the number of time-domain symbols included in the first time window.

[0505] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling within the first time window and on the first BWP does not exceed the first threshold.

[0506] As an example, the recipient of the target control signaling expects that the number of PDCCH monitoring operations performed on the first BWP within the first time window will not exceed the first threshold.

[0507] As an example, the recipient of the target control signaling does not expect the number of PDCCH monitoring operations performed on the first BWP within the first time window to exceed the first threshold.

[0508] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling on the first time window and on the first BWP for a serving cell does not exceed the first threshold.

[0509] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling on the first time window and on the first BWP for a serving cell group does not exceed the first threshold.

[0510] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling on the first time window and on the first BWP for a scheduled serving cell does not exceed the first threshold.

[0511] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling on the first time window and the first BWP for a scheduled serving cell group does not exceed the first threshold.

[0512] As an example, the number of PDCCH monitoring operations performed by the recipient of the target control signaling within the first time window and on the serving cell to which the first BWP belongs does not exceed the first threshold.

[0513] As an example, the first threshold is equal to Or the first threshold equals Or the first threshold equals Or the first threshold equals

[0514] As an example, the first threshold is equal to and The smaller value compared to the others.

[0515] As an example, the first threshold is equal to and The smaller value compared to the others.

[0516] As an example, the first threshold is equal to

[0517] As an example, the second threshold is greater than 1.

[0518] As an example, the second threshold can be equal to 1.

[0519] As one example, the second threshold is either predefined or configured by signaling.

[0520] As one example, the second threshold is related to the capability of the first node device.

[0521] As an example, the capability report of the first node device is used to explicitly or implicitly indicate the second threshold.

[0522] As one embodiment, the second threshold is related to the subcarrier spacing of the first BWP.

[0523] As one embodiment, the second threshold is related to the number of serving cells configured for the first node device.

[0524] As one embodiment, the second threshold is related to the number of time-domain symbols included in the first time window.

[0525] As an example, the number of non-overlapped CCEs occupied by the PDCCH alternatives monitored by the receiver of the target control signaling within the first time window and on the first BWP is not greater than the second threshold.

[0526] As an example, the receiver of the target control signaling expects that the number of non-overlapped CCEs occupied by the PDCCH alternatives monitored on the first BWP within the first time window is not greater than the second threshold.

[0527] As an example, the receiver of the target control signaling does not expect the number of non-overlapped CCEs occupied by the PDCCH alternatives monitored on the first BWP within the first time window to be greater than the second threshold.

[0528] As an example, the number of non-overlapping CCEs occupied by the receiver of the target control signaling for a serving cell monitored by the PDCCH alternatives executed by the receiver on the first time window and the first BWP within the first time window does not exceed the second threshold.

[0529] As an example, the number of non-overlapping CCEs occupied by the receiver of the target control signaling for a serving cell group monitored within the first time window and on the first BWP does not exceed the second threshold.

[0530] As an example, the number of non-overlapping CCEs occupied by the receiver of the target control signaling for a PDCCH candidate monitored by a scheduled serving cell within the first time window and on the first BWP does not exceed the second threshold.

[0531] As an example, the number of non-overlapping CCEs occupied by the receiver of the target control signaling for a PDCCH candidate monitored by a scheduled serving cell group within the first time window and on the first BWP does not exceed the second threshold.

[0532] As an example, the number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling within the first time window and on the serving cell to which the first BWP belongs is not greater than the second threshold.

[0533] As an example, the second threshold is equal to Or the second threshold equals Or the second threshold equals Or the second threshold equals

[0534] As an example, the second threshold is equal to and The smaller value compared to the others.

[0535] As an example, the second threshold is equal to and The smaller value compared to the others.

[0536] As an example, the second threshold is equal to

[0537] As an example, the statement in the claim that "the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is being monitored" includes the following meaning: the second search space set, the first threshold and the second threshold are used together by the first node device or the second node device in this application to determine whether the second PDCCH is being monitored.

[0538] As an example, the statement in the claim "the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meaning: the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is discarded during overbooking.

[0539] As an example, the statement in the claim "the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is being monitored" includes the following meaning: the index or ID of the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is being monitored.

[0540] As an example, the statement in the claim "the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meaning: the index or ID sorting of the second search space set, the first threshold and the second threshold are used together to determine whether the PDCCH candidates included in the second search space set are monitored.

[0541] As an example, the statement in the claim "the second search space set, the first threshold and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meaning: the index or ID of the second search space set, the first threshold and the second threshold are used together to determine whether the second search space set is monitored or discarded.

[0542] As an example, the statement in the claim that "the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meanings: the order or arrangement of the index or ID of the second search space set in multiple search space sets, the first threshold, and the second threshold are used together to determine whether the second search space set is monitored or discarded.

[0543] As an example, the statement in the claim that "the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meanings: the order of the index or ID of the second search space set in multiple search space sets, the number of PDCCH candidates included in the second search space set, and the first threshold and the second threshold are used together to determine whether the second search space set is monitored or discarded based on a predefined pseudocode.

[0544] As an embodiment, the statement in the claim that "the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meanings: the second search space set is one of a plurality of sequentially indexed or arranged search space sets, the plurality of sequentially indexed or arranged search space sets are added to the monitored search space set group in the order of indexing or arrangement; the monitored search space set group includes the largest search space set where the number of PDCCH candidates included in the monitoring count is not greater than the first threshold and the total number of non-overlapping CCEs occupied by the PDCCH candidates included in the monitoring count is not greater than the second threshold; whether the monitored search space set group includes the second search space set is used to determine whether the second PDCCH is monitored.

[0545] As an embodiment, the statement in the claim that "the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is monitored" includes the following meanings: the second search space set is one of a plurality of sequentially indexed or arranged search space sets, and the plurality of sequentially indexed or arranged search space sets are added to the monitored search space set group in the order of indexing or arrangement; the monitored search space set group includes the largest search space set where the number of PDCCH candidates included in the monitoring count is not greater than the first threshold and the total number of non-overlapping CCEs occupied by the PDCCH candidates included in the monitoring count is not greater than the second threshold; when the monitored search space set group includes the second search space set, each PDCCH candidate included in the second search space set is monitored; otherwise, no PDCCH candidate included in the second search space set is monitored.

[0546] Example 10

[0547] Example 10 illustrates a schematic diagram of a reference search space set according to an embodiment of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In cases A and B, the horizontal axis represents time, the vertical axis represents frequency, the rectangle filled with crosshairs represents the first search space set, the rectangle filled with intersecting lines represents the second search space set, and the reference search space set is indicated by a dashed arrow. In case A, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are time-division multiplexed; in case B, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are frequency-division multiplexed.

[0548] In Embodiment 10, the first information block in this application is used to indicate a reference search space set, which is either the first search space set or the second search space set in this application; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset in this application includes at least one RE occupied by the second PDCCH in this application.

[0549] As an example, the statement "the first information block is used to indicate the reference search space set" in the claim includes the following meaning: the first information block is used by the second node device in this application to indicate the reference search space set.

[0550] As an example, the statement in the claim "the first information block is used to indicate the reference search space set" includes the following meaning: the first information block is used to explicitly or implicitly indicate the reference search space set.

[0551] As an example, the statement in the claim "the first information block is used to indicate the reference search space set" includes the following meaning: one or more fields included in the first information block are used to explicitly or implicitly indicate the reference search space set.

[0552] As an example, the statement in the claim "the first information block is used to indicate the reference search space set" includes the following meaning: one or more IEs included in the first information block are used to explicitly or implicitly indicate the reference search space set.

[0553] As an example, the statement in the claim "the first information block is used to indicate the reference search space set" includes the following meaning: the first information block is used to explicitly or implicitly indicate the index value or ID of the reference search space set.

[0554] As an example, the statement in the claim "the first information block is used to indicate the reference search space set" includes the following meaning: the first information block is used to explicitly or implicitly indicate the reference search space set from the first search space set or the second search space set.

[0555] As one embodiment, the statement in the claim that "the first information block is used to indicate a reference search space set" includes the following meanings: the first information block includes at least one of a first field or a second field, the first field is used to indicate whether the first search space set is the reference search space set, and the second field is used to indicate whether the second search space set is the reference search space set. As a supplementary embodiment of the above embodiment, both the first field and the second field are used to indicate a Boolean value. As a supplementary embodiment of the above embodiment, the presence or absence of the first field in the first information block is used to indicate whether the first search space set is the reference search space set, and the presence or absence of the second field in the first information block is used to indicate whether the second search space set is the reference search space set. As a supplementary embodiment of the above embodiment, the field included in the first information block or the IE "searchSpaceLinking" includes at least one of the first field or the second field.

[0556] As an example, the statement in the claim "the first information block is used to indicate a reference search space set" includes the following meaning: at least one field in the IE "searchSpaceLinking" included in the first information block is used to explicitly or implicitly indicate the reference search space set from the first search space set or the second search space set.

[0557] As an example, the index value of the first search space set is a non-negative integer.

[0558] As an example, the index value of the first search space set is equal to one of 0, 1, 2, ..., 39.

[0559] As an example, the index value of the first search space set is equal to a non-negative integer not greater than 39.

[0560] As an example, the index value of the second search space set is a non-negative integer.

[0561] As an example, the index value of the second search space set is equal to one of 0, 1, 2, ..., 39.

[0562] As an example, the index value of the second search space set is equal to a non-negative integer not greater than 39.

[0563] As one embodiment, the index value of the reference search space set is equal to either the index value of the first search space set or the index value of the second search space set.

[0564] As an example, "index value of a search space set" and "ID of a search space set" are equivalent or can be used interchangeably.

[0565] As an example, "index value of the first search space set" and "ID of the first search space set" are equivalent or can be used interchangeably.

[0566] As one example, "index value of the second search space set" and "ID of the second search space set" are equivalent or can be used interchangeably.

[0567] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the reference search space set and the second search space set are the same is used by the first node device or the second node device in this application to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0568] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the index value of the reference search space set and the index value of the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0569] As an embodiment, the statement in the claim "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the reference search space set and the second search space set are the same, whether at least one of the first PDCCH or the second PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, the target time-frequency resource subset does not include any RE occupied by the second PDCCH.

[0570] As an example, the statement in the claim "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the reference search space set and the second search space set are the same, whether at least one of the first PDCCH or the second PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0571] As an example, the statement in the claim "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meanings: when the reference search space set and the second search space set are the same, whether at least one of the first PDCCH or the second PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, whether the second PDCCH is detected as being used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0572] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the reference search space set and the second search space set are the same is used to determine whether the first PDCCH is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0573] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether the reference search space set and the second search space set are the same is used to determine whether the detection result of the first PDCCH is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0574] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: whether whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH is related to whether the first PDCCH is detected.

[0575] As an example, the statement in the claim that "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the reference search space set and the second search space set are the same, whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH; otherwise, whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH is irrelevant to whether the first PDCCH is detected.

[0576] As an example, the statement in the claim "whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH" includes the following meaning: when the reference search space set and the second search space set are the same, whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0577] Example 11

[0578] Example 11 illustrates a schematic diagram of the relationship between a first signal and a second signal according to an embodiment of this application, as shown in the attached diagram. Figure 11 As shown. In the appendix Figure 11 The table shows the resource mapping of the first and second signals in a frequency domain RB and a time slot in the time domain. The horizontal axis represents time, the vertical axis represents frequency, each small square represents a RE, each small square filled with cross lines represents a RE occupied by the first signal, and each small square filled with gray-black represents a RE occupied by the second signal.

[0579] In embodiment 11, the second signal in this application occupies a reference time-frequency resource group, which includes at least one RE; the first signal and the second signal in this application are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0580] As an example, the reference time-frequency resource group includes discrete time-domain symbols in the time domain.

[0581] As an example, the reference time-frequency resource group includes continuous time-domain symbols in the time domain.

[0582] As one embodiment, the reference time-frequency resource group includes discrete subcarriers in the frequency domain.

[0583] As one embodiment, the reference time-frequency resource group includes consecutive subcarriers in the frequency domain.

[0584] As an example, any RE included in the reference time-frequency resource group belongs to the target time-frequency resource subset.

[0585] As an example, one RE included in the reference time-frequency resource group belongs to a subset of the target time-frequency resources.

[0586] As an example, the reference time-frequency resource set and the target time-frequency resource subset are orthogonal to each other.

[0587] As an example, there are overlapping REs between the reference time-frequency resource group and the target time-frequency resource subset.

[0588] As an example, any RE included in the reference time-frequency resource group belongs to the first time-frequency resource set.

[0589] As an example, the position of the REs included in the reference time-frequency resource group within the first time-frequency resource set is predefined or configured by signaling.

[0590] As an example, the distribution of REs included in the reference time-frequency resource group within the first time-frequency resource set is predefined or signaled configured.

[0591] As an example, the distribution of REs included in the reference time-frequency resource group within each RB included in the first time-frequency resource set is predefined or signaling configured.

[0592] As an example, the distribution of symbols occupied by the REs included in the reference time-frequency resource group in the time domain is predefined or configured by signaling.

[0593] As an example, any one of the REs included in the reference time-frequency resource group is occupied by the second signal.

[0594] As an example, the RE occupied by the second signal belongs to a group of reference time-frequency resources outside the reference time-frequency resource group.

[0595] As an example, any RE occupied by the second signal belongs to the reference time-frequency resource group.

[0596] As one embodiment, the second signal is a baseband signal or a radio frequency signal.

[0597] As an example, the second signal is DMRS (Demodulation Reference Signal).

[0598] As an example, the second signal is PDSCH DMRS.

[0599] As an example, the second signal is PDCCH DMRS.

[0600] As one embodiment, the second signal includes PDSCH DMRS and PDCCH DMRS.

[0601] As an example, the first signal and the second signal correspond to the same PDSCH.

[0602] As an example, the first signal and the second signal belong to the same PDSCH.

[0603] As an example, both the first signal and the second signal are used for the same PDSCH.

[0604] As an example, the first signal and the second signal are both contained in the same PDSCH.

[0605] As one example, the first signal and the second signal correspond to different types of channels.

[0606] As one example, the first signal and the second signal are used for different types of channels.

[0607] As an example, the first signal is used for PDSCH and the second signal is used for PDCCH.

[0608] As an example, the reference signal type to which the first signal belongs is different from the reference signal type to which the second signal belongs.

[0609] As an example, the first signal is PTRS and the second signal is DMRS.

[0610] As one example, the purpose of the first signal is different from that of the second signal.

[0611] As an example, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the position of at least one symbol included in the reference time-frequency resource group in the time domain is used by the first node device or the second node device in this application to determine the position of at least one symbol occupied by the first signal in the time domain.

[0612] As an example, the statement in the claim that "the position of at least one symbol included in the time domain of the reference time-frequency resource group is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the position of at least one symbol included in the time domain of the reference time-frequency resource group is used to determine the distribution of the symbol occupied by the first signal in the time domain among the symbols included in the time domain of the first time-frequency resource set.

[0613] As an example, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain according to a predefined pseudocode or steps.

[0614] As an example, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the index of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the index of at least one symbol occupied by the first signal in the time domain.

[0615] As an example, the statement in the claim that "the position of at least one symbol included in the time domain of the reference time-frequency resource group is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the index of at least one symbol included in the time domain of the reference time-frequency resource group in the symbols included in the time domain of the first time-frequency resource set is used to determine the index of at least one symbol occupied by the first signal in the time domain in the symbols included in the time domain of the first time-frequency resource set.

[0616] As an embodiment, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meanings: the first signal occupies multiple symbols in the time domain, the interval length between any two adjacent symbols occupied by the first signal in the time domain is not less than a target interval length, and the target interval length is a positive integer; the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the maximum value of the interval length between any two adjacent symbols occupied by the first signal in the time domain. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme of the PDSCH corresponding to the first signal. As a supplementary embodiment of the above embodiment, the target interval length is predefined or configured by signaling. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme indicated by the target control signaling.

[0617] As an embodiment, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meanings: the first signal occupies multiple symbols in the time domain, the interval length between any two adjacent symbols occupied by the first signal in the time domain is not less than a target interval length, and the target interval length is a positive integer; the interval length between a symbol included in the reference time-frequency resource group in the time domain and a symbol occupied by the first signal in the time domain is equal to the target interval length. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme of the PDSCH corresponding to the first signal. As a supplementary embodiment of the above embodiment, the target interval length is predefined or configured by signaling. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme indicated by the target control signaling.

[0618] As an embodiment, the statement in the claim that "the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain" includes the following meanings: the first signal occupies multiple symbols in the time domain, the interval length between any two adjacent symbols occupied by the first signal in the time domain is not less than a target interval length, and the target interval length is a positive integer; the first symbol is a symbol occupied by the first signal in the time domain, the second symbol is a symbol included in the reference time-frequency resource group in the time domain that is earlier than the first symbol and has the smallest interval length with the first symbol, and the interval length between the second symbol and the first symbol is equal to the target interval length. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme of the PDSCH corresponding to the first signal. As a supplementary embodiment of the above embodiment, the target interval length is predefined or configured by signaling. As a supplementary embodiment of the above embodiment, the target interval length is related to the modulation and coding scheme indicated by the target control signaling.

[0619] As an example, the modulation and coding scheme indicated by the target control signaling is also used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0620] Example 12

[0621] Example 12 illustrates a structural block diagram of a processing device in a first node device according to an embodiment, as shown in the attached diagram. Figure 12 As shown. In the appendix Figure 12 In the first node device processing unit 1200, there are a first receiver 1201 and a second receiver 1202. The first receiver 1201 includes the components specified in the appendix of this application. Figure 4 The transmitter / receiver 456 (including antenna 460), receiver processor 452, and controller / processor 490 are included; the second receiver 1202 includes the appendix to this application. Figure 4 The transmitter / receiver 456 (including antenna 460), receiver processor 452, and controller / processor 490 are included.

[0622] In embodiment 12, the first receiver 1201 receives a first information block, which is used to determine a first search space set and a second search space set. The first search space set includes at least one PDCCH candidate, and the second search space set includes at least one PDCCH candidate. The first search space set and the second search space set are not the same. The second receiver 1202 receives target control signaling and a first signal, which is used to determine a first time-frequency resource set. The first time-frequency resource set includes multiple REs, and the first signal occupies at least one RE in the time-frequency domain. Any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set. A first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; a first PDCCH is a PDCCH candidate included in the first search space set, and a second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; a target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0623] As one embodiment, the control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are different.

[0624] As an example, the aggregation level of the first PDCCH is equal to the aggregation level of the second PDCCH, the index of the first PDCCH in the first search space set is equal to the index of the second PDCCH in the second search space set, and the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0625] As an example, the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0626] As an example, at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold is equal to the maximum number of PDCCH monitoring times by the receiver of the target control signaling within the first time window and on the first BWP, and the first threshold is a positive integer; a second threshold is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling within the first time window and on the first BWP, and the second threshold is a positive integer; the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is being monitored.

[0627] As one embodiment, the first information block is used to indicate a reference search space set, which is one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0628] As one embodiment, the second receiver 1202 receives a second signal; wherein the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group including at least one RE; the first signal and the second signal are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0629] Example 13

[0630] Example 13 illustrates a structural block diagram of a processing device in a second node device according to an embodiment, as shown in the attached diagram. Figure 13 As shown. In the appendix Figure 13 In the second node device processing unit 1300, there are a first transmitter 1301 and a second transmitter 1302. The first transmitter 1301 includes the components specified in the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 460), the transmitter processor 415, and the controller / processor 440 are included; the second transmitter 1302 includes the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 460), the transmitter processor 415, and the controller / processor 440 are included.

[0631] In embodiment 13, the first transmitter 1301 transmits a first information block, which is used to indicate a first search space set and a second search space set. The first search space set includes at least one PDCCH candidate, and the second search space set includes at least one PDCCH candidate. The first search space set and the second search space set are not the same. The second transmitter 1302 transmits target control signaling and transmits a first signal. The target control signaling is used to indicate a first time-frequency resource set. The first time-frequency resource set includes multiple REs. The first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set. A first time-frequency resource set; wherein, the PDCCH candidates included in the first search space set and the PDCCH candidates included in the second search space set are correspondingly associated; a first PDCCH is a PDCCH candidate included in the first search space set, and a second PDCCH is a PDCCH candidate included in the second search space set that is associated with the first PDCCH; a target time-frequency resource subset includes at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0632] As one embodiment, the control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; the quasi-co-addressable reference signals included in the first control resource set and the quasi-co-addressable reference signals included in the second control resource set are different.

[0633] As an example, the aggregation level of the first PDCCH is equal to the aggregation level of the second PDCCH, the index of the first PDCCH in the first search space set is equal to the index of the second PDCCH in the second search space set, and the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

[0634] As an example, the target value is equal to the total number of monitoring operations performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; whether the second PDCCH is monitored or at least one of the target values ​​is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0635] As an example, at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold is equal to the maximum number of PDCCH monitoring times by the receiver of the target control signaling within the first time window and on the first BWP, and the first threshold is a positive integer; a second threshold is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidates monitored by the receiver of the target control signaling within the first time window and on the first BWP, and the second threshold is a positive integer; the second search space set, the first threshold, and the second threshold are used together to determine whether the second PDCCH is being monitored.

[0636] As one embodiment, the first information block is used to indicate a reference search space set, which is one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

[0637] As one embodiment, the second transmitter 1302 transmits a second signal; wherein the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group including at least one RE; the first signal and the second signal are two different types of reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

[0638] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first node device or second node device or UE or terminal in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle communication devices, aircraft, airplanes, drones, remote-controlled airplanes, and other wireless communication devices. The base station device or base station or network-side device in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmit / receive nodes (TRPs), relay satellites, satellite base stations, airborne base stations, and other wireless communication devices.

[0639] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node device for wireless communication, the first node device comprising: Comprising: a first receiver, receiving a first information block, the first information block being used to determine a first search space set and a second search space set, the first search space set comprising at least one PDCCH candidate, the second search space set comprising at least one PDCCH candidate, the first search space set and the second search space set being different; a second receiver, receiving target control signaling and receiving a first signal, the target control signaling being used to determine a first time-frequency resource set, the first time-frequency resource set comprising a plurality of REs, the first signal occupying at least one RE in time-frequency domain, any one RE occupied by the first signal in time-frequency domain belonging to the first time-frequency resource set; wherein, the PDCCH candidate comprised in the first search space set and the PDCCH candidate comprised in the second search space set are corresponding associated; a first PDCCH being one PDCCH candidate comprised in the first search space set, a second PDCCH being the PDCCH candidate comprised in the second search space set and associated with the first PDCCH, a target time-frequency resource subset comprising at least one RE other than the REs occupied by the first signal in the first time-frequency resource set, whether the first PDCCH is detected being used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the second PDCCH.

2. The first node device of claim 1, wherein, The control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; the quasi co-location of the reference signal comprised in the first control resource set and the quasi co-location of the reference signal comprised in the second control resource set being different.

3. The first node device of claim 2, wherein, The index value of the control resource set resource pool to which the first control resource set belongs and the index value of the control resource set resource pool to which the second control resource set belongs are equal.

4. The first node device of any of claims 1 to 3, wherein, The aggregation level of the first PDCCH and the aggregation level of the second PDCCH are equal, the index of the first PDCCH in the first search space set and the index of the second PDCCH in the second search space set are equal, the control signaling carried by the second PDCCH and the control signaling carried by the first PDCCH being same; whether the first PDCCH is detected being used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the first PDCCH.

5. The first node device of any of claims 1 to 4, wherein, A target value being equal to the total number of monitoring performed on the first PDCCH and the second PDCCH, the target value being positive integer; at least one of whether the second PDCCH is monitored or the target value being used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the second PDCCH.

6. The first node device of any of claims 1 to 5, wherein, The at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; the first threshold value is equal to a maximum PDCCH monitoring number of a receiver of the target control signaling in the first time window and on the first BWP, and the first threshold value is a positive integer; The second threshold value is equal to a maximum number of non-overlapping CCEs occupied by a PDCCH candidate monitored by the receiver of the target control signaling in the first time window and on the first BWP, and the second threshold value is a positive integer; the second search space set, the first threshold value, and the second threshold value are used together to determine whether the second PDCCH is monitored.

7. The first node device of claim 6, wherein, The second search space set is one of a plurality of sequentially indexed or arranged search space sets, and the plurality of sequentially indexed or arranged search space sets are sequentially added into a monitored search space set group according to the order of indexing or arrangement; the monitored search space set group includes the maximum number of search space sets under the condition that the number of PDCCH candidates counted in the monitoring number is not greater than the first threshold value, and the total number of non-overlapping CCEs occupied by the PDCCH candidate counted in the monitoring number is not greater than the second threshold value; whether the monitored search space set group includes the second search space set is used to determine whether the second PDCCH is monitored.

8. The first node device of any of claims 1-7, wherein, The first information block is used to indicate a reference search space set, and the reference search space set is one of the first search space set or the second search space set; whether the reference search space set is the same as the second search space set is used to determine whether the target time-frequency resource subset includes the at least one RE occupied by the second PDCCH.

9. The first node device of any of claims 1-8, wherein, The second receiver receives a second signal; wherein the second signal occupies a reference time-frequency resource group, and the reference time-frequency resource group includes at least one RE; the first signal and the second signal are two types of different reference signals, and the position of the at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of the at least one symbol occupied by the first signal in the time domain.

10. The first node device of any of claims 1-9, wherein, The first search space set is a user-specific search space set, and the second search space set is a user-specific search space set; or the first search space set is a common search space set, and the second search space set is a common search space set.

11. The first node device of any of claims 1-10, wherein, The time domain period of the first search space set is equal to the time domain period of the second search space set, the monitoring opportunity associated with the first search space set and the monitoring opportunity associated with the second search space set correspond to each other one by one, and any two corresponding monitoring opportunities belong to the same time slot.

12. The first node device of any of claims 1-11, wherein, The total number of monitoring performed on the first PDCCH and the second PDCCH is equal to 2 or 3, and an information block other than the first information block is used to configure the total number of monitoring performed on the first PDCCH and the second PDCCH.

13. The first node device of any of claims 1-12, wherein, When the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal. 14.A second node device for wireless communication, comprising: Comprise: The first transmitter transmits a first information block, the first information block is used to indicate a first search space set and a second search space set, the first search space set comprises at least one PDCCH candidate, the second search space set comprises at least one PDCCH candidate, the first search space set and the second search space set are not the same; The second transmitter transmits target control signaling and transmits a first signal, the target control signaling is used to indicate a first time-frequency resource set, the first time-frequency resource set comprises a plurality of REs, the first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set; Wherein, the PDCCH candidate included in the first search space set and the PDCCH candidate included in the second search space set are correspondingly associated; The first PDCCH is one PDCCH candidate included in the first search space set, the second PDCCH is the PDCCH candidate included in the second search space set and associated with the first PDCCH, and a target time-frequency resource subset comprises at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; Whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the second PDCCH.

15. The second node device of claim 14, wherein, The control resource set associated with the first search space set is a first control resource set; the control resource set associated with the second search space set is a second control resource set; the quasi co-location of the reference signal included in the first control resource set and the quasi co-location of the reference signal included in the second control resource set are not the same.

16. The second node device of claim 15, wherein, The index value of the control resource set resource pool to which the first control resource set belongs and the index value of the control resource set resource pool to which the second control resource set belongs are equal.

17. The second node device of any of claims 14-16, wherein, The aggregation level of the first PDCCH and the aggregation level of the second PDCCH are equal, the index of the first PDCCH in the first search space set and the index of the second PDCCH in the second search space set are equal, the control signaling carried by the second PDCCH and the control signaling carried by the first PDCCH are the same; Whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the first PDCCH.

18. The second node device of any of claims 14-17, wherein, The target value is equal to a total number of monitoring performed on the first PDCCH and the second PDCCH, the target value being a positive integer; at least one of whether the second PDCCH is monitored or the target value is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

19. The second node device of any of claims 14-18, wherein, At least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold value is equal to a maximum number of PDCCH monitoring of a receiver of the target control signaling within the first time window and on the first BWP, the first threshold value being a positive integer; A second threshold value is equal to a maximum number of non-overlapping CCEs occupied by a PDCCH candidate monitored by the receiver of the target control signaling within the first time window and on the first BWP, the second threshold value being a positive integer; the second search space set, the first threshold value, and the second threshold value are used together to determine whether the second PDCCH is monitored.

20. The second node device of claim 19, wherein, The second search space set is one of a plurality of sequentially indexed or arranged search space sets, the plurality of sequentially indexed or arranged search space sets being sequentially added into a monitored search space set group according to an indexing or arrangement order; the monitored search space set group includes a maximum number of search space sets under a condition that a number of PDCCH candidates counted in monitoring times is not greater than the first threshold value and a total number of non-overlapping CCEs occupied by the PDCCH candidates counted in monitoring times is not greater than the second threshold value; whether the monitored search space set group includes the second search space set is used to determine whether the second PDCCH is monitored.

21. The second node device of any of claims 14-20, wherein, The first information block is used to indicate a reference search space set, the reference search space set being one of the first search space set or the second search space set; whether the reference search space set is identical to the second search space set is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

22. The second node device of any of claims 14-21, wherein, The second transmitter transmits a second signal; wherein the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group including at least one RE; the first signal and the second signal are two types of different reference signals, and a position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine a position of at least one symbol occupied by the first signal in the time domain.

23. The second node device of any of claims 14-22, wherein, The first search space set is a user-specific search space set, and the second search space set is a user-specific search space set; or the first search space set is a common search space set, and the second search space set is a common search space set.

24. The second node device of any of claims 14-23, wherein, The time domain period of the first search space set and the time domain period of the second search space set are equal, the monitoring opportunities associated to the first search space set and the monitoring opportunities associated to the second search space set are one-to-one corresponding, and any two corresponding monitoring opportunities belong to the same time slot.

25. The second node device of any of claims 14-24, wherein, The total number of monitoring performed on the first PDCCH and the second PDCCH is equal to 2 or 3, and information blocks other than the first information block are used to configure the total number of monitoring performed on the first PDCCH and the second PDCCH.

26. The second node device of any of claims 14-25, wherein, When the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

27. A method in a first node for wireless communication, the method comprising: Comprise: Receiving a first information block, the first information block is used to determine a first search space set and a second search space set, the first search space set comprises at least one PDCCH candidate, the second search space set comprises at least one PDCCH candidate, and the first search space set and the second search space set are not the same; Receiving target control signaling and receiving a first signal, the target control signaling is used to determine a first time-frequency resource set, the first time-frequency resource set comprises a plurality of REs, the first signal occupies at least one RE in the time-frequency domain, and any RE occupied by the first signal in the time-frequency domain belongs to the first time-frequency resource set; Wherein, the PDCCH candidate included in the first search space set and the PDCCH candidate included in the second search space set are corresponding associated; The first PDCCH is one PDCCH candidate included in the first search space set, the second PDCCH is the PDCCH candidate included in the second search space set and associated with the first PDCCH, the target time-frequency resource subset comprises at least one RE other than the RE occupied by the first signal in the first time-frequency resource set, and whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the second PDCCH.

28. A method in a first node according to claim 27, characterised by, The control resource set associated with the first search space set is a first control resource set, the control resource set associated with the second search space set is a second control resource set, and the quasi co-location of the reference signal included in the first control resource set and the quasi co-location of the reference signal included in the second control resource set are not the same.

29. A method in a first node according to claim 28, characterised by, The index value of the control resource set resource pool to which the first control resource set belongs and the index value of the control resource set resource pool to which the second control resource set belongs are equal.

30. A method in a first node according to any of claims 27-29, characterized by, The aggregation level of the first PDCCH and the aggregation level of the second PDCCH are equal, the index of the first PDCCH in the first search space set and the index of the second PDCCH in the second search space set are equal, and the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

31. A method in a first node according to any of claims 27 - 30, characterized by, The target value is equal to the total number of monitoring performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; at least one of whether the second PDCCH is monitored or the target value is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

32. A method in a first node according to any of claims 27 - 31, characterized by, The at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold value is equal to the maximum PDCCH monitoring times of the receiver of the target control signaling in the first time window and on the first BWP, and the first threshold value is a positive integer; A second threshold value is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidate monitored by the receiver of the target control signaling in the first time window and on the first BWP, and the second threshold value is a positive integer; the second search space set, the first threshold value and the second threshold value are used together to determine whether the second PDCCH is monitored.

33. A method in a first node according to claim 32, characterised by, The second search space set is one of a plurality of sequentially indexed or arranged search space sets, and the plurality of sequentially indexed or arranged search space sets are sequentially added to a monitored search space set group according to the order of indexing or arrangement; the monitored search space set group includes the maximum number of search space sets under the condition that the number of PDCCH candidates counted in the monitoring times is not greater than the first threshold value and the total number of non-overlapping CCEs occupied by the PDCCH candidate counted in the monitoring times is not greater than the second threshold value; whether the monitored search space set group includes the second search space set is used to determine whether the second PDCCH is monitored.

34. A method in a first node according to any of claims 27 - 33, characterized by, The first information block is used to indicate a reference search space set, and the reference search space set is one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

35. A method in a first node according to any of claims 27 - 34, characterized by, Comprise: Receiving a second signal; Wherein, the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group includes at least one RE; the first signal and the second signal are two types of different reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

36. A method in a first node according to any of claims 27 - 35, characterized by, The first search space set is a user-specific search space set, and the second search space set is a user-specific search space set; or the first search space set is a common search space set, and the second search space set is a common search space set.

37. A method in a first node according to any of claims 27 - 36, characterized by, The time domain period of the first search space set is equal to the time domain period of the second search space set, the monitoring opportunity associated with the first search space set and the monitoring opportunity associated with the second search space set are one-to-one corresponding, and any two corresponding monitoring opportunities belong to the same time slot.

38. A method in a first node according to any of claims 27 - 37, characterized by, The total number of monitoring performed on the first PDCCH and the second PDCCH is equal to 2 or 3, and the information block other than the first information block is used to configure the total number of monitoring performed on the first PDCCH and the second PDCCH.

39. A method in a first node according to any of claims 27 - 38, characterized by, When the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

40. A method in a second node for wireless communication, the method comprising: Comprise: sending a first information block, the first information block being used to indicate a first search space set and a second search space set, the first search space set comprising at least one PDCCH candidate, the second search space set comprising at least one PDCCH candidate, the first search space set and the second search space set being different; sending target control signaling and sending a first signal, the target control signaling being used to indicate a first time-frequency resource set, the first time-frequency resource set comprising a plurality of REs, the first signal occupying at least one RE in the time-frequency domain, any RE occupied by the first signal in the time-frequency domain belonging to the first time-frequency resource set; wherein the PDCCH candidate included in the first search space set and the PDCCH candidate included in the second search space set are corresponding associated; The first PDCCH is one PDCCH candidate included in the first search space set, the second PDCCH is the PDCCH candidate included in the second search space set and associated with the first PDCCH, and the target time-frequency resource subset comprises at least one RE other than the RE occupied by the first signal in the first time-frequency resource set; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset comprises at least one RE occupied by the second PDCCH.

41. A method in a second node according to claim 40, characterised by, The control resource set associated with the first search space set is a first control resource set, the control resource set associated with the second search space set is a second control resource set, and the quasi co-location of the reference signal included in the first control resource set and the quasi co-location of the reference signal included in the second control resource set are different.

42. A method in a second node according to claim 41, characterised by, The index value of the control resource set resource pool to which the first control resource set belongs and the index value of the control resource set resource pool to which the second control resource set belongs are equal.

43. A method in a second node according to any of claims 40-42, characterized by, The aggregation level of the first PDCCH and the aggregation level of the second PDCCH are equal, the index of the first PDCCH in the first search space set and the index of the second PDCCH in the second search space set are equal, and the control signaling carried by the second PDCCH is the same as the control signaling carried by the first PDCCH; whether the first PDCCH is detected is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the first PDCCH.

44. A method in a second node according to any of claims 40-43, characterized by, The target value is equal to the total number of monitoring performed on the first PDCCH and the second PDCCH, and the target value is a positive integer; at least one of whether the second PDCCH is monitored or the target value is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

45. A method in a second node according to any of claims 40 - 44, characterized by, The at least one symbol occupied by the second PDCCH in the time domain belongs to a first time window, and one subcarrier occupied by the second PDCCH in the frequency domain belongs to a first BWP; a first threshold value is equal to the maximum PDCCH monitoring number of the receiver of the target control signaling in the first time window and on the first BWP, and the first threshold value is a positive integer; A second threshold value is equal to the maximum number of non-overlapping CCEs occupied by the PDCCH candidate monitored by the receiver of the target control signaling in the first time window and on the first BWP, and the second threshold value is a positive integer; the second search space set, the first threshold value and the second threshold value are used together to determine whether the second PDCCH is monitored.

46. A method in a second node according to claim 45, characterised by, The second search space set is one of a plurality of sequentially indexed or arranged search space sets, and the plurality of sequentially indexed or arranged search space sets are sequentially added to a monitored search space set group according to the order of indexing or arrangement; the monitored search space set group includes the maximum number of search space sets under the condition that the number of PDCCH candidates counted in the monitoring number is not greater than the first threshold value and the total number of non-overlapping CCEs occupied by the PDCCH candidate counted in the monitoring number is not greater than the second threshold value; whether the monitored search space set group includes the second search space set is used to determine whether the second PDCCH is monitored.

47. A method in a second node according to any of claims 40-46, characterized by, The first information block is used to indicate a reference search space set, and the reference search space set is one of the first search space set or the second search space set; whether the reference search space set and the second search space set are the same is used to determine whether the target time-frequency resource subset includes at least one RE occupied by the second PDCCH.

48. A method in a second node according to any of the claims 40 to 47, characterized by, Comprise: sending a second signal; wherein the second signal occupies a reference time-frequency resource group, the reference time-frequency resource group includes at least one RE; the first signal and the second signal are two types of different reference signals, and the position of at least one symbol included in the reference time-frequency resource group in the time domain is used to determine the position of at least one symbol occupied by the first signal in the time domain.

49. A method in a second node according to any of claims 40-48, characterized by, The first search space set is a user-specific search space set, and the second search space set is a user-specific search space set; or the first search space set is a common search space set, and the second search space set is a common search space set.

50. A method in a second node according to any of claims 40-49, characterized by, A time domain period of the first search space set is equal to a time domain period of the second search space set, a monitoring opportunity associated with the first search space set and a monitoring opportunity associated with the second search space set are one-to-one corresponding, and any two corresponding monitoring opportunities belong to a same time slot.

51. A method in a second node according to any of claims 40 - 50, characterized by, A total number of monitoring performed on the first PDCCH and the second PDCCH is equal to 2 or 3, and information blocks other than the first information block are used to configure the total number of monitoring performed on the first PDCCH and the second PDCCH.

52. A method in a second node according to any of claims 40-51, characterized by, When the first PDCCH is detected or the second PDCCH is detected, any RE occupied by the second PDCCH is not occupied by the first signal; otherwise, the RE occupied by the second PDCCH can be occupied by the first signal.

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