A method and device used in a node for wireless communication

Abstract

The present application discloses a method and apparatus used in a node for wireless communication. The node first receives a first information set; then receives a target information set, the target information set is used to determine that a first search space set is associated with a second search space set; and monitors K1 control signaling alternatives; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and a domain included in the second information subset is used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the present application improves the configuration method when multiple PDCCH search spaces are jointly monitored under M‑TRP to optimize system performance.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a design scheme and device for control signaling in wireless communication. Background Art

[0002] In 5G NR (New Radio), Massive MIMO (Multi-Input Multi-Output) is a key technology. In Massive MIMO, multiple antennas form narrow beams pointing in a specific direction through beamforming to improve communication quality. In 5G NR, CORESET (Control Resource Set) and Search Space Set (Search Space Set) for PDCCH (Physical Downlink Control Channel) monitoring are defined. Each search space set is associated with a CORESET, which is used to configure frequency domain resources, CCE (Control Channel Element) to REG (Resource Element Group) mapping, and TCI (Transmission Configuration Indication) and other related information; the search space set is used to configure the time domain resources occupied by PDCCH, the supported DCI (Downlink Control Information) format, the supported AL (Aggregation Level) and the number of PDCCH and Dulates (alternatives) supported at different aggregation levels.

[0003] In the discussion of NR R17, for the Multi-TRP (transmitting and receiving node) scenario, in order to increase the reliability of PDCCH, the terminal can jointly detect two associated PDCCH candidates to improve performance. Summary of the invention

[0004] Through research, the inventors found that when two search space sets can be associated together for PDCCH joint detection, a simple configuration method is to treat the two combined search space sets as a new search space set and configure it through high-level signaling; however, the above method will obviously increase signaling overhead and reduce spectrum efficiency.

[0005] In view of the above problems, the present application discloses a solution. It should be noted that, although the above description uses large-scale MIMO and beam-based communication scenarios as examples, the present application is also applicable to other scenarios such as LTE multi-antenna systems, and obtains similar technical effects in large-scale MIMO and beam-based communication scenarios. In addition, the use of a unified solution for different scenarios (including but not limited to large-scale MIMO, beam-based communication and LTE multi-antenna systems) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in the embodiments of any node of the present application can be applied to any other node, and vice versa. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0006] In response to the above problems, the present application discloses a method and apparatus for configuring and calculating PDCCH alternatives under multiple TRPs. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the user equipment of the present application can be applied to the base station, and vice versa. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other. Further, although the original intention of the present application is for cellular networks, the present application can also be used for the Internet of Things and the Internet of Vehicles. Further, although the original intention of the present application is for multi-carrier communication, the present application can also be used for single-carrier communication. Further, although the original intention of the present application is for multi-antenna communication, the present application can also be used for single-antenna communication. Further, although the original intention of the present application is for terminal and base station scenarios, the present application is also applicable to communication scenarios between terminals and terminals, terminals and relays, non-terrestrial networks (NTN, Non-Terrestrial Networks), and relays and base stations, achieving similar technical effects in terminal and base station scenarios. In addition, the use of a unified solution for different scenarios (including but not limited to communication scenarios between terminals and base stations) also helps to reduce hardware complexity and cost.

[0007] Further, in the absence of conflict, the embodiments and features in the first node device of the present application can be applied to the second node device, and vice versa. In particular, the interpretation of the terminology, nouns, functions, and variables in the present application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols TS (Technical Specification) 36 series, TS38 series, and TS37 series.

[0008] The present application discloses a method in a first node for wireless communication, comprising:

[0009] receiving a first information set;

[0010] receiving a target information set, the target information set being used to determine that a first search space set is associated with a second search space set, the first search space set and the second search space set being different;

[0011] Monitoring K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0012] Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0013] As an embodiment, a technical feature of the above method is that: when the first search space set and the second search space set are used for joint PDCCH monitoring, the partial field used to configure PDCCH Candidate in the first information set used to configure the first search space set, that is, the second information subset, can be used to configure the second search space set, thereby reducing signaling overhead and improving spectrum efficiency.

[0014] As an embodiment, a technical feature of the above method is that: when the first search space set and the second search space set are used for joint PDCCH monitoring, the partial domain used to configure time domain resources in the first information set used to configure the first search space set is still only used to configure the first search space set, thereby improving the flexibility of the configuration of the first search space set and the second search space set used for joint PDCCH monitoring, and facilitating the separate use of the two search space sets.

[0015] According to one aspect of the present application, the first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

[0016] As an embodiment, a technical feature of the above method is that the first information set is a configuration information set for the first search space.

[0017] According to one aspect of the present application, the first information subset includes a third identifier, and the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

[0018] According to one aspect of the present application, the second information subset is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0019] According to one aspect of the present application, the second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

[0020] According to one aspect of the present application, it includes:

[0021] receiving a second information set;

[0022] Among them, the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

[0023] As an embodiment, a technical feature of the above method is that the second information set is a regular configuration information set of the second search space set.

[0024] According to one aspect of the present application, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

[0025] As an embodiment, a technical feature of the above method is that the second information subset in the first information set configures the PDCCH alternatives in the second search space set only when the second search space set and the first search space set are used jointly to ensure performance when used jointly.

[0026] According to one aspect of the present application, when the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

[0027] As an embodiment, a technical feature of the above method is that the second information set serves as a regular configuration information set of the second search space set, and when the second search space set is independently used as a PDCCH search space, it is used to configure the PDCCH alternatives of the second search space set to ensure the flexibility of configuration when used independently.

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

[0029] receiving a first signaling;

[0030] receiving a first signal;

[0031] The first signaling occupies one or more control signaling alternatives among the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

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

[0033] receiving a first signaling;

[0034] sending a first signal;

[0035] The first signaling occupies one or more control signaling alternatives among the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

[0036] The present application discloses a method in a second node for wireless communication, comprising:

[0037] sending a first information set;

[0038] Sending a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different;

[0039] Determine K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0040] Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0041] According to one aspect of the present application, the first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

[0042] According to one aspect of the present application, the first information subset includes a third identifier, and the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

[0043] According to one aspect of the present application, the second information subset is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0044] According to one aspect of the present application, the second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

[0045] According to one aspect of the present application, it includes:

[0046] sending a second information set;

[0047] Among them, the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

[0048] According to one aspect of the present application, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

[0049] According to one aspect of the present application, when the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

[0050] According to one aspect of the present application, it includes:

[0051] Sending a first signaling;

[0052] sending a first signal;

[0053] The first signaling occupies one or more control signaling alternatives among the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

[0054] According to one aspect of the present application, it includes:

[0055] Sending a first signaling;

[0056] receiving a first signal;

[0057] The first signaling occupies one or more control signaling alternatives among the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

[0058] The present application discloses a first node for wireless communication, comprising:

[0059] A first receiver receives a first information set;

[0060] a second receiver, receiving a target information set, wherein the target information set is used to determine that a first search space set is associated with a second search space set, and the first search space set and the second search space set are different;

[0061] A first transceiver monitors K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0062] Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0063] The present application discloses a second node for wireless communication, comprising:

[0064] A first transmitter sends a first information set;

[0065] A second transmitter sends a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different;

[0066] The second transceiver determines K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0067] Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0068] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0069] -. When the first search space set and the second search space set are used for joint PDCCH monitoring, part of the fields used for configuring PDCCH Candidate in the first information set used for configuring the first search space set, i.e., the second information subset, can be used to configure the second search space set, thereby reducing signaling overhead and improving spectrum efficiency; and part of the fields used for configuring time domain resources in the first information set used for configuring the first search space set is still only used to configure the first search space set, thereby improving the flexibility of configuring the first search space set and the second search space set for joint PDCCH monitoring, and facilitating the separate use of the two search space sets;

[0070] -. The second information set is used as a regular configuration information set of the second search space set. When the second search space set is independently used as a PDCCH search space, it is used to configure the PDCCH candidates of the second search space set to ensure the flexibility of configuration when used independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0072] Figure 1 A processing flow chart of a first node according to an embodiment of the present application is shown;

[0073] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0074] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0075] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0076] Figure 5 A flowchart showing a first information set according to an embodiment of the present application is shown;

[0077] Figure 6 A flow chart showing a first information set according to another embodiment of the present application;

[0078] Figure 7 A schematic diagram showing a first information set according to an embodiment of the present application is shown;

[0079] Figure 8A schematic diagram showing a second information set according to an embodiment of the present application is shown;

[0080] Fig. 9 A schematic diagram showing a first search space and a second search space according to an embodiment of the present application is shown;

[0081] Fig.10 A schematic diagram of a target control signaling candidate set according to an embodiment of the present application is shown;

[0082] Fig.11 A schematic diagram showing a fourth control signaling alternative according to an embodiment of the present application is shown;

[0083] Fig.12 A schematic diagram showing an application scenario according to an embodiment of the present application is shown;

[0084] Fig.13 A structural block diagram of a processing device in a first node device according to an embodiment of the present application is shown;

[0085] Fig.14 A structural block diagram of a processing device in a second node device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0086] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0087] Example 1

[0088] Embodiment 1 illustrates a processing flow chart of a first node, as shown in the attached Figure 1 As shown in the attached Figure 1 In the illustrated example 100 , each box represents a step. In Embodiment 1, the first node in the present application receives a first information set in step 101 ; receives a target information set in step 102 ; and monitors K1 control signaling candidates in step 103 .

[0089] In Example 1, the target information set is used to determine that the first search space set and the second search space set are associated, and the first search space set and the second search space set are not the same; the K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set in the first search space set and the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0090] As an embodiment, the target information set is carried by RRC (Radio Resource Control) signaling.

[0091] As an embodiment, the target information set is carried by a MAC (Medium Access Control) CE (Control Elements).

[0092] As an embodiment, the target information set includes SearchSpace IE (Information Elements) in TS 38.331.

[0093] As an embodiment, the target information set includes one or more fields in the SearchSpace IE in TS 38.331.

[0094] As an embodiment, the target information set includes one or more fields in the PDCCH-Config IE in TS 38.331.

[0095] As an embodiment, the target information set includes one or more fields in the PDCCH-Config CommonIE in TS 38.331.

[0096] As an embodiment, the target information set is used to indicate that the first search space set and the second search space set are associated.

[0097] As an embodiment, the control signaling candidate in the present application is a PDCCH Candidate.

[0098] As an embodiment, the first search space set is a Search Space Set.

[0099] As an embodiment, the first search space set is a Search Space.

[0100] As an embodiment, the second search space set is a Search Space Set.

[0101] As an embodiment, the second search space set is a Search Space.

[0102] As an embodiment, the above phrase that the first search space set and the second search space set are associated means that one or more control signaling alternatives included in the first search space set and one or more control signaling alternatives included in the second search space set can be combined into a combined control signaling alternative.

[0103] As an embodiment, the phrase that the first search space set and the second search space set are associated means that the first search space set and the second search space set can be jointly monitored for PDCCH.

[0104] As an embodiment, the above phrase that the first search space set and the second search space set are associated means that the first search space set and the second search space set can form a third search space set, the third search space set is different from the first search space set, and the third search space set is different from the second search space set.

[0105] As an embodiment, the above phrase "the first search space set and the second search space set are associated" means that the first search space set includes first control signaling alternatives, the second search space set includes second control signaling alternatives, and the total number of monitoring times counted for the first control signaling alternative and the second control signaling alternative is a positive integer greater than 2.

[0106] As an embodiment, the above phrase that the first search space set and the second search space set are different means that: the SearchSpaceID used by the first search space set is a first identifier, the SearchSpaceID used by the second search space set is a second identifier, and the first identifier and the second identifier are different.

[0107] As an embodiment, the above phrase "the first search space set and the second search space set are different" means that: the first search space set is associated with a first control resource set, the second search space set is associated with a second control resource set, and the frequency domain resources occupied by the first control resource set are different from the frequency domain resources occupied by the second control resource set.

[0108] As an embodiment, the above phrase "the first search space set and the second search space set are different" means that: the first search space set is associated with a first control resource set, the second search space set is associated with a second control resource set, and the control resource set identifier (ControlResourceSetId) used by the first control resource set is different from the control resource set identifier used by the second control resource set.

[0109] As an embodiment, the phrase that the first search space set and the second search space set are different means includes: time domain resources occupied by the first search space set are different from time domain resources occupied by the second search space set.

[0110] As an embodiment, the phrase that the first search space set and the second search space set are different means that: a DCI format (Format) supported by the first search space set is different from a DCI format supported by the second search space set.

[0111] As an embodiment, the first information set is carried by RRC signaling.

[0112] As an embodiment, the MAC CE carries the first information set.

[0113] As an embodiment, the first information set includes SearchSpace IE in TS 38.331.

[0114] As an embodiment, the first information set includes one or more fields in the SearchSpace IE in TS 38.331.

[0115] As an embodiment, the first information set includes one or more fields in the PDCCH-Config IE in TS 38.331.

[0116] As an embodiment, the first information set includes one or more fields in the PDCCH-Config CommonIE in TS 38.331.

[0117] As an embodiment, the first information set is used to configure the first search space set.

[0118] As an embodiment, the multiple fields included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set.

[0119] As an embodiment, a field included in the second information subset is used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set.

[0120] As an embodiment, the first search space set is an anchor search space set of the second search space set.

[0121] As an embodiment, the first information set includes the SearchSpace IE in TS 38.331, and the first information subset includes the following one or more fields included in the SearchSpace IE:

[0122] -SearchspaceId,

[0123] -ControlResourceSetId,

[0124] -monitoringSlotPeriodicityAndOffset,

[0125] -duration,

[0126] -monitoringSymbolsWithinSlot.

[0127] As an embodiment, the first information set includes the SearchSpace IE in TS 38.331, and the second information subset includes the following one or more fields included in the SearchSpace IE:

[0128] -nrofcandidates,

[0129] -SearchspaceType.

[0130] As an embodiment, the first information set includes the SearchSpace IE in TS 38.331, and the second information subset includes the following one or more fields included in the SearchSpace IE:

[0131] -aggregationLevel1,

[0132] -aggregationLevel2,

[0133] -aggregationLevel4,

[0134] -aggregationLevel8,

[0135] -aggregationLevel16,

[0136] -dci-FormatX-Y;

[0137] Wherein, X is one of 0, 1, 2, and Y is one of 0, 1, 2, 3.

[0138] As an embodiment, the first information subset is used to indicate the position of an OFDM (Orthogonal Frequency Division Multiplexing) symbol occupied by the first search space in a time slot.

[0139] As an embodiment, the first information subset is used to indicate the position of the time slot occupied by the first search space.

[0140] As an embodiment, the given control signaling alternative consists of the first control signaling alternative and the second control signaling alternative.

[0141] As an embodiment, the first search space set is associated with a first control resource set, the second search space set is associated with a second control resource set, the first control resource set belongs to a first control resource set pool (CORESET Pool), the second control resource set belongs to a second control resource set pool, and the first control resource set pool and the second control resource set pool are different.

[0142] As an embodiment, the given control signaling alternative consists of the first control signaling alternative and the second control signaling alternative.

[0143] As an embodiment, the first search space set is associated with a first control resource set, the second search space set is associated with a second control resource set, the first control resource set belongs to a first control resource set pool (CORESET Pool), the second control resource set belongs to a second control resource set pool, and the first control resource set pool and the second control resource set pool respectively use different coresetpoolIndex.

[0144] As an embodiment, the control signaling options included in the first search space set are QCL (Quasi Co-located) and the control signaling options included in the second search space set are QCL and the second reference signal resource, and the first reference signal resource and the second reference signal resource are non-QCL.

[0145] As an embodiment, the first control signaling option is QCL (Quasi Co-located) with a first reference signal resource, the second control signaling option is QCL with a second reference signal resource, and the first reference signal resource and the second reference signal resource are non-QCL.

[0146] As a sub-embodiment of this embodiment, the first reference signal resource includes at least one of a CSI-RS (Channel-State Information Reference Signals) resource or an SSB (SS / PBCHBlock, synchronization signal / physical broadcast channel block).

[0147] As a sub-embodiment of this embodiment, the second reference signal resource includes at least one of a CSI-RS resource or an SSB.

[0148] As an embodiment, the first control signaling alternative and the second control signaling alternative are sent by two different TRPs respectively.

[0149] As an embodiment, the control signaling candidate in the present application is PDCCH Candidate.

[0150] As an embodiment, the control signaling candidate in the present application is PSCCH (Physical Sidelink Control Channel) Candidate.

[0151] As an embodiment, the above phrase that the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative means that the CCE occupied by the given control signaling alternative includes the CCE occupied by the first control signaling alternative and the CCE occupied by the second control signaling alternative.

[0152] As an embodiment, the above phrase that the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative means that the REs occupied by the given control signaling alternative include the REs occupied by the first control signaling alternative and the REs occupied by the second control signaling alternative.

[0153] Example 2

[0154] Example 2 illustrates a schematic diagram of a network architecture, as shown in the attached Figure 2 shown.

[0155] Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. EPS 200 may include a UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220 and Internet Service 230. EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, EPS provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switching services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP, or some other suitable term. gNB 203 provides an access point to EPC / 5G-CN 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, 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, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to EPC / 5G-CN 210 via an S1 / NG interface.EPC / 5G-CN 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (UserPlane Function) 211, other MME / AMF / UPF214, S-GW (Service Gateway) 212 and P-GW (Packet Data Network Gateway) 213. MME / AMF / UPF211 is a control node that handles signaling between UE201 and EPC / 5G-CN 210. Generally, MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW212, which itself is connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. The Internet service 230 includes the operator's corresponding Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching streaming services.

[0156] As an embodiment, the UE201 corresponds to the first node in the present application.

[0157] As an embodiment, the UE201 is capable of simultaneously receiving PDCCHs from multiple TRPs.

[0158] As an embodiment, the UE 201 is a terminal having the capability of monitoring multiple beams simultaneously.

[0159] As an embodiment, the UE 201 is a terminal supporting Massive-MIMO.

[0160] As an embodiment, the UE201 is a terminal supporting V2X (Vehicle-to-Everything).

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

[0162] As an embodiment, the gNB203 is capable of simultaneously sending PDCCHs originating from multiple TRPs.

[0163] As an embodiment, the gNB203 supports multi-beam transmission.

[0164] As an embodiment, the gNB203 supports transmission based on Massive-MIMO.

[0165] As an embodiment, the gNB203 includes at least two TRPs.

[0166] Example 3

[0167] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 between the first communication node device (UE, gNB or RSU in V2X) and the second communication node device (gNB, UE or RSU in V2X) is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and the PDCP sublayer 304 also provides inter-zone mobility support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (RadioResouce Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture used for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0168] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0169] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0170] As an embodiment, the PDCP 304 of the second communication node device is used to generate the scheduling of the first communication node device.

[0171] As an embodiment, the PDCP 354 of the second communication node device is used to generate the scheduling of the first communication node device.

[0172] As an embodiment, the target information set in the present application is generated by the MAC302 or MAC352.

[0173] As an embodiment, the target information set in the present application is generated in the RRC306.

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

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

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

[0177] As an embodiment, the second information set in the present application is generated by the MAC302 or MAC352.

[0178] As an embodiment, the second information set in the present application is generated in the RRC306.

[0179] As an embodiment, the first signaling in the present application is generated in the PHY301 or PHY351.

[0180] As an embodiment, the first signaling in the present application is generated by the MAC302 or MAC352.

[0181] As an embodiment, the first signal in the present application is generated by the PHY301 or PHY351.

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

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

[0184] As an embodiment, the first node is a terminal.

[0185] As an embodiment, the second node is a terminal.

[0186] As an embodiment, the second node is a RSU (Road Side Unit).

[0187] As an embodiment, the second node is a Grouphead.

[0188] As an embodiment, the second node is a TRP (Transmitter Receiver Point).

[0189] As an embodiment, the second node is a cell.

[0190] As an embodiment, the second node is an eNB.

[0191] As an embodiment, the second node is a base station.

[0192] As an embodiment, the second node is used to manage multiple TRPs.

[0193] As an embodiment, the second node is a node for managing multiple cells.

[0194] Example 4

[0195] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0196] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0197] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0198] In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0199] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0200] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0201] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0202] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: first receives a first information set; secondly receives a target information set, the target information set is used to determine that a first search space set and a second search space set are associated, the first search space set and the second search space set are not the same; then monitors K1 control signaling alternatives, wherein K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset The set is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0203] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: first receiving a first information set; secondly receiving a target information set, the target information set being used to determine that a first search space set and a second search space set are associated, the first search space set and the second search space set are not the same; then monitoring K1 control signaling alternatives, wherein K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the The first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0204] As an embodiment, the second communication device 410 comprises: at least one processor and at least one memory, wherein the at least one memory comprises computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 device at least: first sends a first information set; secondly sends a target information set, the target information set is used to determine that the first search space set and the second search space set are associated, and the first search space set and the second search space set are not the same; then determines K1 control signaling alternatives, wherein K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set, respectively.

[0205] As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, wherein the action includes: first sending a first information set; secondly sending a target information set, wherein the target information set is used to determine that a first search space set and a second search space set are associated, wherein the first search space set and the second search space set are not the same; then determining K1 control signaling alternatives, wherein K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and The first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

[0206] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0207] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0208] As an embodiment, the first communication device 450 is a UE.

[0209] As an embodiment, the first communication device 450 is a terminal.

[0210] As an embodiment, the second communication device 410 is a base station.

[0211] As an embodiment, the second communication device 410 is a UE.

[0212] As an embodiment, the second communication device 410 is a network device.

[0213] As an embodiment, the second communication device 410 is a serving cell.

[0214] As an embodiment, the second communication device 410 is a TRP.

[0215] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to receive a target information set; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send a target information set.

[0216] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to receive a first information set; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send a first information set.

[0217] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to monitor K1 control signaling alternatives; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to determine K1 control signaling alternatives.

[0218] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to receive a second set of information; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send a second set of information.

[0219] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 are used to receive the first signaling; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, and the controller / processor 475 are used to send the first signaling.

[0220] As an embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller / processor 459 are used to receive a first signal; and at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller / processor 475 are used to send a first signal.

[0221] As an implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller / processor 459 are used to send a first signal; and at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller / processor 475 are used to receive a first signal.

[0222] Example 5

[0223] Embodiment 5 illustrates a flow chart of a first information set, as shown in the attached Figure 5 As shown in the attached Figure 5 In the embodiment, the first node U1 and the second node N2 communicate with each other via a wireless link. It is particularly noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

[0224] for The first node U1 , receiving a first information set in step S10; receiving a second information set in step S11; receiving a target information set in step S12; receiving a first signaling in step S13; and receiving a first signal in step S14.

[0225] for The second node N2 , sending a first information set in step S20; sending a second information set in step S21; sending a target information set in step S22; sending a first signaling in step S23; and sending a first signal in step S24.

[0226] In Example 5, the target information set is used to determine that the first search space set and the second search space set are associated, and the first search space set and the second search space set are not the same; the K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set The number of options; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the position of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset; the first signaling occupies one or more control signaling alternatives in the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

[0227] As an embodiment, the first search space set and the second search space set are associated with a first identifier and a second identifier respectively, and the first information subset only includes the first identifier of the first identifier and the second identifier.

[0228] As a sub-embodiment of this embodiment, the first identifier is a non-negative integer.

[0229] As a sub-embodiment of this embodiment, the second identifier is a non-negative integer.

[0230] As a sub-embodiment of this embodiment, the first identifier is different from the second identifier.

[0231] As a sub-embodiment of this embodiment, the first identifier is a SearchSpaceID.

[0232] As a sub-embodiment of this embodiment, the second identifier is a SearchSpaceID.

[0233] As a sub-embodiment of this embodiment, the first information subset does not include the second identifier.

[0234] As an embodiment, the first information subset includes a third identifier, and the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

[0235] As a sub-embodiment of this embodiment, the third identifier is ControlResourceSetId.

[0236] As a sub-embodiment of this embodiment, the first control resource set is a CORESET.

[0237] As an embodiment, the second information subset is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0238] As a sub-embodiment of this embodiment, the second information subset is used to indicate an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0239] As a sub-embodiment of this embodiment, the first search space set and the second search space set support the same one or more aggregation levels.

[0240] As an embodiment, the second information subset is used to determine the downlink control information format supported by the first search space set and the downlink control information format supported by the second search space set.

[0241] As a sub-embodiment of this embodiment, the second information subset is used to indicate the downlink control information format supported by the first search space set and the downlink control information format supported by the second search space set.

[0242] As a sub-embodiment of this embodiment, the first search space set and the second search space set support the same one or more downlink control information formats.

[0243] As an embodiment, the second information set is carried by RRC signaling.

[0244] As an embodiment, the MAC CE carries the second information set.

[0245] As an embodiment, the second information set includes SearchSpace IE in TS 38.331.

[0246] As an embodiment, the second information set includes one or more fields in the SearchSpace IE in TS 38.331.

[0247] As an embodiment, the second information set includes one or more fields in the PDCCH-Config IE in TS 38.331.

[0248] As an embodiment, the second information set includes one or more fields in the PDCCH-Config CommonIE in TS 38.331.

[0249] As an embodiment, the second information set includes the SearchSpace IE in TS 38.331, and the third information subset includes the following one or more fields included in the SearchSpace IE:

[0250] -SearchspaceId,

[0251] -ControlResourceSetId,

[0252] -monitoringSlotPeriodicityAndOffset,

[0253] -duration,

[0254] -monitoringSymbolsWithinSlot.

[0255] As an embodiment, the second information set includes the SearchSpace IE in TS 38.331, and the fourth information subset includes the following one or more fields included in the SearchSpace IE:

[0256] -nrofcandidates,

[0257] -SearchspaceType.

[0258] As an embodiment, the second information set includes the SearchSpace IE in TS 38.331, and the fourth information subset includes the following one or more fields included in the SearchSpace IE:

[0259] -aggregationLevel1,

[0260] -aggregationLevel2,

[0261] -aggregationLevel4,

[0262] -aggregationLevel8,

[0263] -aggregationLevel16,

[0264] -dci-FormatX-Y;

[0265] Wherein, X is one of 0, 1, 2, and Y is one of 0, 1, 2, 3.

[0266] As an embodiment, the second information subset is used to indicate the position of the OFDM symbol occupied by the second search space in a time slot.

[0267] As an embodiment, the second information subset is used to indicate the position of the time slot occupied by the second search space.

[0268] As an embodiment, the above phrase that the fourth information subset is updated by the second information subset means that when the first node receives the second information subset and the fourth information subset, the first node U1 determines the configuration of the second search space set according to the second information subset.

[0269] As an embodiment, the phrase that the fourth information subset is updated by the second information subset means that: the priority of the second information subset is higher than the priority of the fourth information subset.

[0270] As an embodiment, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

[0271] As a sub-embodiment of this embodiment, the first control signaling alternative set includes M1 control signaling alternatives, the second control signaling alternative set includes M1 control signaling alternatives, and the third control signaling alternative set includes M1 control signaling alternatives, and M1 is a positive integer greater than 1.

[0272] As a subsidiary embodiment of this sub-embodiment, K1 is not less than the product of M1 and 3.

[0273] As a subsidiary embodiment of this sub-embodiment, K1 is equal to the product of M1 and 3.

[0274] As a subsidiary embodiment of this sub-embodiment, the given first control signaling alternative is the i-th control signaling alternative among the M1 control signaling alternatives included in the first control signaling alternative set, the given second control signaling alternative is the i-th control signaling alternative among the M1 control signaling alternatives included in the second control signaling alternative set, and the given first control signaling alternative and the given second control signaling alternative constitute the i-th control signaling alternative among the M1 control signaling alternatives included in the third control signaling alternative set.

[0275] As a sub-embodiment of this embodiment, the aggregation level supported by the first control signaling alternative set is the same as the aggregation level supported by the second control signaling alternative set.

[0276] As a sub-embodiment of this embodiment, the first control signaling alternative set includes M1 control signaling alternatives, and any control signaling alternative among the M1 control signaling alternatives included in the first control signaling alternative set is an independent control signaling alternative.

[0277] As a sub-embodiment of this embodiment, the second control signaling alternative set includes M1 control signaling alternatives, and any control signaling alternative among the M1 control signaling alternatives included in the second control signaling alternative set is an independent control signaling alternative.

[0278] As a sub-embodiment of this embodiment, the third control signaling alternative set includes M1 control signaling alternatives, and any control signaling alternative among the M1 control signaling alternatives included in the third control signaling alternative set is a merged control signaling alternative.

[0279] As a sub-embodiment of this embodiment, the second information subset is used to indicate one or more aggregation levels supported by the first control signaling alternative set.

[0280] As a sub-embodiment of this embodiment, the second information subset is used to indicate the number of control signaling alternatives included in each aggregation level supported by the first control signaling alternative set.

[0281] As a sub-embodiment of this embodiment, the second information subset is used to indicate one or more aggregation levels supported by the third control signaling alternative set.

[0282] As a sub-embodiment of this embodiment, the second information subset is used to indicate the number of control signaling alternatives included in each aggregation level supported by the third control signaling alternative set.

[0283] As an embodiment, when the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; and the fourth information subset is used to determine the fourth control signaling alternative set.

[0284] As a sub-embodiment of this embodiment, the fourth control signaling alternative set includes a positive integer number of control signaling alternatives greater than 1.

[0285] As a sub-embodiment of this embodiment, the control signaling alternatives included in the fourth control signaling alternative set are all independent control signaling alternatives.

[0286] As a sub-embodiment of this embodiment, the meaning of the above sentence that the second control signaling alternative set is different from the fourth control signaling alternative set includes: the number of control signaling alternatives included in the second control signaling alternative set is different from the number of control signaling alternatives included in the fourth control signaling alternative set.

[0287] As a sub-embodiment of this embodiment, the meaning of the above sentence that the second control signaling alternative set is different from the fourth control signaling alternative set includes: the aggregation level supported by the second control signaling alternative set is different from the aggregation level supported by the fourth control signaling alternative set.

[0288] As a sub-embodiment of this embodiment, the meaning of the above sentence that the second control signaling alternative set is different from the fourth control signaling alternative set includes: the time-frequency resources occupied by at least one control signaling alternative among the control signaling alternatives included in the second control signaling alternative set are different from the time-frequency resources occupied by any control signaling alternative among the control signaling alternatives included in the fourth control signaling.

[0289] As an embodiment, the first signaling is a DCI.

[0290] As an embodiment, the first signaling is an SCI.

[0291] As an embodiment, the physical layer channel carrying the first signaling includes PDCCH.

[0292] As an embodiment, the physical layer channel carrying the first signaling includes PSCCH.

[0293] As an embodiment, the first signaling is a downlink authorization.

[0294] As an embodiment, the first signal is a wireless signal, or the first signal is a baseband signal.

[0295] As an embodiment, the physical layer channel carrying the first signal includes PDSCH (Physical Downlink Shared Channel).

[0296] As an embodiment, the physical layer channel carrying the first signaling includes PSSCH (Physical Sidelink Shared Channel).

[0297] As an embodiment, the transmission channel carrying the first signal includes a DL-SCH (Downlink Shared Channel).

[0298] As an embodiment, the transmission channel carrying the first signaling includes SL-SCH (Sidelink Shared Channel).

[0299] As an embodiment, the first information set and the second information set belong to the same RRC IE.

[0300] Example 6

[0301] Embodiment 6 illustrates another flow chart of the first information set, as shown in the attached Figure 6 As shown in the attached Figure 6 In the embodiment, the first node U3 and the second node N4 communicate via a wireless link. It is particularly noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application. In the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in embodiment 5 can be used in embodiment 6; similarly, in the absence of conflict, the embodiment, sub-embodiment and subsidiary embodiment in embodiment 6 can be used in embodiment 5.

[0302] for First node U3 , receiving a first information set in step S30; receiving a second information set in step S31; receiving a target information set in step S32; receiving a first signaling in step S33; and sending a first signal in step S34.

[0303] for Second node N4 , sending a first information set in step S40; sending a second information set in step S41; sending a target information set in step S42; sending a first signaling in step S43; receiving a first signal in step S44.

[0304] In Embodiment 6, the target information set is used to determine that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; the K1 is a positive integer greater than 1; the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set in the first search space set and the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set The number of options; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the position of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset; the first signaling occupies one or more control signaling alternatives in the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

[0305] As an embodiment, the first signaling is an uplink authorization.

[0306] As an embodiment, the physical layer channel carrying the first signal includes PUSCH (Physical Uplink Shared Channel).

[0307] As an embodiment, the transmission channel carrying the first signal includes UL-SCH (Uplink Shared Channel, uplink shared channel).

[0308] Example 7

[0309] Embodiment 7 illustrates a schematic diagram of a first information set, as shown in the attached Figure 7 As shown in the attached Figure 7 In the figure, the first information set includes a first information subset and a second information subset; the bold frame in the figure corresponds to the first information set.

[0310] As an embodiment, the first information set is associated with the first search space set.

[0311] As an embodiment, the first information subset is only used to configure the first search space set.

[0312] As an embodiment, when the first search space and the second search space are associated, the second information subset is used to configure the first search space set and the second search space set.

[0313] As an embodiment, when the first search space and the second search space are not associated, the second information subset is only used to configure the first search space set.

[0314] As an embodiment, the first information set includes the target information set in this application.

[0315] As an embodiment, the first information set also includes an information subset other than the first information subset and the second information subset.

[0316] Example 8

[0317] Embodiment 8 illustrates a schematic diagram of a second information set, as shown in the attached Figure 8 As shown in the attached Figure 8 In the figure, the second information set includes a third information subset and a fourth information subset; the bold frame in the figure corresponds to the second information set.

[0318] As an embodiment, the second information set is associated with the second search space set.

[0319] As an embodiment, the third information subset is only used to configure the second search space set.

[0320] As an embodiment, when the first search space is associated with the second search space, the fourth information subset is disabled.

[0321] As an embodiment, when the second search space has no associated search space set, the fourth information subset is enabled.

[0322] As an embodiment, when the second search space has no associated search space set, the fourth information subset is used to configure the second search space set.

[0323] As an embodiment, the second information set also includes an information subset other than the third information subset and the fourth information subset.

[0324] Example 9

[0325] Embodiment 9 illustrates a schematic diagram of the first search space and the second search space, as shown in the attached figure. Fig. 9 As shown in the attached Fig. 9 In the 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.

[0326] As an embodiment, the REs (Resource Elements) occupied by the first search space set and the REs occupied by the second search space set belong to two different CORESETs respectively.

[0327] As an embodiment, the REs occupied by the first search space set and the REs occupied by the second search space set belong to two different CORESET Pools respectively.

[0328] As an embodiment, the first search space set and the second search space set occupy the same number of REs.

[0329] As an embodiment, the frequency domain resources occupied by the first search space set and the frequency domain resources occupied by the second search space set are orthogonal in the frequency domain.

[0330] As an embodiment, the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set are orthogonal in the time domain.

[0331] Example 10

[0332] Embodiment 10 illustrates a schematic diagram of a target control signaling candidate set, as shown in the attached Fig.10 As shown in the attached Fig.10 In the figure, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the rectangle filled with oblique lines in the figure corresponds to a control signaling alternative belonging to the first control signaling alternative set, the rectangle filled with squares in the figure corresponds to a control signaling alternative belonging to the second control signaling alternative set, and two control signaling alternatives connected by a dotted line constitute a control signaling alternative belonging to the third control signaling alternative set.

[0333] As an embodiment, the first control signaling alternative set includes a positive integer number of control signaling alternatives greater than 1.

[0334] As an embodiment, the second control signaling alternative set includes a positive integer number of control signaling alternatives greater than 1.

[0335] As an embodiment, the third signaling alternative set includes a positive integer number of control signaling alternatives greater than 1.

[0336] As an embodiment, the first control signaling alternative set includes Q1 control signaling alternatives, where Q1 is a positive integer greater than 1; the second control signaling alternative set includes Q2 control signaling alternatives, where Q2 is a positive integer greater than 1; and the third signaling alternative set includes Q3 control signaling alternatives, where Q3 is equal to the smaller value of Q1 and Q2.

[0337] As an embodiment, the subcarrier spacing adopted by the control signaling alternatives in the first control signaling alternative set is the first subcarrier spacing, and the subcarrier spacing adopted by the control signaling alternatives in the second control signaling alternative set is the second subcarrier spacing; the first subcarrier spacing is greater than the second subcarrier spacing; the number of control signaling alternatives included in the target control signaling alternative set is equal to K1, and K1 is less than a first threshold, the first threshold is a positive integer, and the first subcarrier spacing is used to determine the first threshold.

[0338] As an embodiment, the subcarrier spacing adopted by the control signaling alternatives in the first control signaling alternative set is the first subcarrier spacing, and the subcarrier spacing adopted by the control signaling alternatives in the second control signaling alternative set is the second subcarrier spacing; the first subcarrier spacing is smaller than the second subcarrier spacing; the number of control signaling alternatives included in the target control signaling alternative set is equal to K1, and K1 is smaller than a first threshold, the first threshold is a positive integer, and the first subcarrier spacing is used to determine the first threshold.

[0339] Embodiment 11

[0340] Embodiment 11 illustrates a schematic diagram of a fourth control signaling alternative, as shown in the attached Fig.11 As shown in the attached Fig.11In the figure, the rectangle filled with slashes corresponds to a control signaling alternative belonging to the second control signaling alternative set, the rectangle in the thick line frame in the figure corresponds to a control signaling alternative belonging to the fourth control signaling alternative set, and the second search space set is simultaneously associated with the second control signaling alternative set and the fourth control signaling alternative set; when the second search space set is associated with the first search space set, the second search space set includes the second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes the fourth control signaling alternative set.

[0341] As an embodiment, the second control signaling alternative set and the fourth control signaling alternative set are associated with the same CORESET.

[0342] As an embodiment, the second control signaling candidate set includes at least one control signaling candidate and the control signaling candidate included in the fourth control signaling candidate set occupies the same REs.

[0343] As an embodiment, the fourth control signaling alternative set includes at least one control signaling alternative that does not belong to the second control signaling alternative set.

[0344] As an embodiment, the second control signaling candidate set includes at least one control signaling candidate and the control signaling candidate included in the fourth control signaling candidate set adopts the same aggregation level and occupies different REs.

[0345] Example 12

[0346] Embodiment 12 illustrates a schematic diagram of an application scenario, as shown in the attached Fig.12 As shown in the attached Fig.12 In the method, the first control resource set and the second control resource set are respectively configured to the first TRP and the second TRP of the first cell, and the first node receives PDCCH from the two TRPs at the same time; the first search space set is associated with the first control resource set, and the second search space set is associated with the second control resource set.

[0347] As an embodiment, the first TRP and the second TRP respectively use two different CORESET PoolIndex.

[0348] As an embodiment, the first TRP and the second TRP are connected via an X2 interface.

[0349] As an embodiment, there exists between the first TRP and the second TRP.

[0350] Embodiment 13

[0351] Embodiment 13 illustrates a structural block diagram in a first node, as shown in the attached Fig.13 Attached Fig.13 In the example, the first node 1300 includes a first receiver 1301, a second receiver 1302 and a first transceiver 1303.

[0352] A first receiver 1301 receives a first information set;

[0353] A second receiver 1302 receives a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different;

[0354] The first transceiver 1303 monitors K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0355] In Example 13, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set in the first search space set and the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set, respectively.

[0356] As an embodiment, the first search space set and the second search space set are associated with a first identifier and a second identifier respectively, and the first information subset only includes the first identifier of the first identifier and the second identifier.

[0357] As an embodiment, the first information subset includes a third identifier, and the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

[0358] As an embodiment, the second information subset is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0359] As an embodiment, the second information subset is used to determine the downlink control information format supported by the first search space set and the downlink control information format supported by the second search space set.

[0360] As an embodiment, the first receiver 1301 receives a second information set; the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

[0361] As an embodiment, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

[0362] As an embodiment, when the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; and the fourth information subset is used to determine the fourth control signaling alternative set.

[0363] As an embodiment, the first transceiver 1303 receives a first signaling, and the first transceiver 1303 receives a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

[0364] As an embodiment, the first transceiver 1303 receives a first signaling, and the first transceiver 1303 sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

[0365] As an embodiment, the first receiver 1301 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 in Embodiment 4.

[0366] As an embodiment, the second receiver 1302 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller / processor 459 in Embodiment 4.

[0367] As an embodiment, the first transceiver 1303 includes at least the first 6 of the antenna 452, receiver / transmitter 454, multi-antenna receive processor 458, multi-antenna transmit processor 457, receive processor 456, transmit processor 468, and controller / processor 459 in Example 4.

[0368] Embodiment 14

[0369] Embodiment 14 illustrates a structural block diagram in a second node, as shown in the attached Fig.14 Attached Fig.14 , the second node 1400 includes a first transmitter 1401 , a second transmitter 1402 , and a second transceiver 1403 .

[0370] A first transmitter 1401 sends a first information set;

[0371] A second transmitter 1402 sends a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different;

[0372] The second transceiver 1403 determines K1 control signaling candidates, where K1 is a positive integer greater than 1;

[0373] In Example 14, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set in the first search space set and the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set, respectively.

[0374] As an embodiment, the first search space set and the second search space set are associated with a first identifier and a second identifier respectively, and the first information subset only includes the first identifier of the first identifier and the second identifier.

[0375] As an embodiment, the first information subset includes a third identifier, and the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

[0376] As an embodiment, the second information subset is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

[0377] As an embodiment, the second information subset is used to determine the downlink control information format supported by the first search space set and the downlink control information format supported by the second search space set.

[0378] As an embodiment, the first transmitter 1401 sends a second information set; the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

[0379] As an embodiment, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

[0380] As an embodiment, when the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; and the fourth information subset is used to determine the fourth control signaling alternative set.

[0381] As an embodiment, the second transceiver 1402 sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

[0382] As an embodiment, the second transceiver 1402 sends a first signal; and the second transceiver 1402 receives a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

[0383] As an embodiment, the first transmitter 1401 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller / processor 475 in Embodiment 4.

[0384] As an embodiment, the second transmitter 1402 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller / processor 475 in Embodiment 4.

[0385] As an embodiment, the second transceiver 1403 includes at least the first six of the antenna 420, transmitter / receiver 418, multi-antenna transmit processor 471, multi-antenna receive processor 472, transmit processor 416, receive processor 470, and controller / processor 475 in Embodiment 4.

[0386] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first node in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, transportation tools, vehicles, RSUs, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The second node in the present application includes but is not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRPs, GNSSs, relay satellites, satellite base stations, air base stations, RSUs, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations, and other wireless communication devices.

[0387] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node for wireless communication, characterized in that include: A first receiver receives a first information set; a second receiver, receiving a target information set, wherein the target information set is used to determine that a first search space set is associated with a second search space set, and the first search space set and the second search space set are different; A first transceiver monitors K1 control signaling candidates, where K1 is a positive integer greater than 1; Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

2. The first node according to claim 1, characterized in that: The first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

3. The first node according to claim 1, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

4. The first node according to claim 2, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

5. The first node according to claim 1 or 3, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

6. The first node according to any one of claims 2 or 4, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

7. The first node according to claim 1 or 3, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

8. The first node according to claim 2 or 4, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

9. The first node according to claim 5, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

10. The first node according to claim 6, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

11. The first node according to any one of claims 2, 4 or 10, characterized in that: The first receiver receives a second information set, and the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

12. The first node according to claim 6, characterized in that: The first receiver receives a second information set, and the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

13. The first node according to claim 8, characterized in that: The first receiver receives a second information set, and the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

14. The first node according to any one of claims 1, 2, 3, 4, 9, 10, 12 or 13, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

15. The first node according to claim 5, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

16. The first node according to claim 6, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

17. The first node according to claim 7, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

18. The first node according to claim 8, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

19. The first node according to claim 11, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

20. The first node according to claim 12, 13 or 19, characterized in that When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

21. The first node according to claim 11, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

22. A second node for wireless communication, characterized in that include: A first transmitter sends a first information set; A second transmitter sends a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different; The second transceiver determines K1 control signaling candidates, where K1 is a positive integer greater than 1; Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

23. The second node according to claim 22, characterized in that: The first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

24. The second node according to claim 22, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

25. The second node according to claim 23, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

26. The second node according to any one of claims 22 or 24, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

27. The second node according to any one of claims 23 or 25, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

28. The second node according to any one of claims 22 or 24, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

29. The second node according to any one of claims 23 or 25, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

30. The second node according to claim 26, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

31. The second node according to claim 27, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

32. The second node according to any one of claims 23, 25 or 31, characterized in that: The first transmitter sends a second information set; the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

33. The second node according to claim 27, characterized in that: The first transmitter sends a second information set; the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

34. The second node according to claim 29, characterized in that: The first transmitter sends a second information set; the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of the time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

35. The second node according to any one of claims 22, 23, 24, 25, 30, 31, 33 or 34, characterized in that The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

36. The second node according to claim 26, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

37. The second node according to claim 27, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

38. The second node according to claim 28, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

39. The second node according to claim 29, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

40. The second node according to claim 32, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

41. The second node according to any one of claims 33, 34 or 40, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

42. The second node according to claim 32, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

43. The second node according to any one of claims 22, 23, 24, 25, 30, 31, 33, 34, 36, 37, 38, 39, 40 or 42, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

44. The second node according to claim 26, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

45. The second node according to claim 27, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

46. ​​The second node according to claim 28, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

47. The second node according to claim 29, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

48. The second node according to claim 32, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

49. The second node according to claim 35, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

50. The second node according to claim 41, characterized in that The second transceiver sends a first signal; and the second transceiver sends a first signal; the first signaling occupies one or more control signaling options among the K1 control signaling options, and the first signaling is used to schedule the first signal.

51. A method in a first node in wireless communication, characterized in that include: receiving a first information set; receiving a target information set, the target information set being used to determine that a first search space set is associated with a second search space set, the first search space set and the second search space set being different; Monitoring K1 control signaling candidates, where K1 is a positive integer greater than 1; Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

52. The method in the first node according to claim 51, characterized in that: The first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

53. The method in the first node according to claim 51, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

54. The method in the first node according to claim 52, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

55. The method in the first node according to any one of claims 51 or 53, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

56. The method in the first node according to any one of claims 52 or 54, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

57. The method in the first node according to any one of claims 51 or 53, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

58. The method in the first node according to any one of claims 52 or 54, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

59. The method in the first node according to claim 55, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

60. The method in the first node according to claim 56, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

61. The method in the first node according to any one of claims 52, 54 or 60, characterized in that: include: receiving a second information set; Wherein, the second information set is used to configure the second search space set; The second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

62. The method in the first node according to claim 56, characterized in that: include: Receive a second information set; wherein the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

63. The method in the first node according to claim 58, characterized in that: include: Receive a second information set; wherein the second information set is used to configure the second search space set; the second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

64. The method in the first node according to any one of claims 51, 52, 53, 54, 59, 60, 62 or 63, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

65. The method in the first node according to claim 55, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

66. The method in the first node according to claim 56, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

67. The method in the first node according to claim 57, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

68. The method in the first node according to claim 58, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

69. The method in the first node according to claim 61, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

70. The method in the first node according to any one of claims 62, 63 or 69, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

71. The method in the first node according to claim 61, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

72. A method in a second node in wireless communication, characterized in that include: sending a first information set; Sending a target information set, where the target information set is used to determine that a first search space set is associated with a second search space set, where the first search space set and the second search space set are different; Determine K1 control signaling candidates, where K1 is a positive integer greater than 1; Among them, the first information set includes a first information subset and a second information subset; the first information subset is only used to configure the first search space set and the first search space set in the second search space set; the first information subset is used to indicate the location of the time domain resources occupied by the first search space, and the one or more domains included in the second information subset are used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the K1 control signaling alternatives include at least one given control signaling alternative, the given control signaling alternative includes a first control signaling alternative and a second control signaling alternative, and the first control signaling alternative and the second control signaling alternative belong to the first search space set and the second search space set respectively.

73. The method in the second node according to claim 72, characterized in that: The first search space set and the second search space set are associated with a first identifier and a second identifier, respectively, and the first information subset includes only the first identifier of the first identifier and the second identifier.

74. The method in the second node according to claim 72, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

75. The method in the second node according to claim 73, characterized in that: The first information subset includes a third identifier, where the third identifier is used to indicate a first control resource set, and the first search space is associated with the first control resource set.

76. The method in the second node according to any one of claims 72 or 74, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

77. The method in the second node according to any one of claims 73 or 75, characterized in that: The second subset of information is used to determine an aggregation level supported by the first search space set and an aggregation level supported by the second search space set.

78. The method in the second node according to any one of claims 72 or 74, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

79. The method in the second node according to any one of claims 73 or 75, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

80. The method in the second node according to claim 76, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

81. The method in the second node according to claim 77, characterized in that: The second information subset is used to determine a downlink control information format supported by the first search space set and a downlink control information format supported by the second search space set.

82. The method in the second node according to any one of claims 73, 75 or 81, characterized in that: include: sending a second information set; Wherein, the second information set is used to configure the second search space set; The second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

83. The method in the second node according to claim 77, characterized in that: include: sending a second information set; Wherein, the second information set is used to configure the second search space set; The second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

84. The method in the second node according to claim 79, characterized in that: include: sending a second information set; Wherein, the second information set is used to configure the second search space set; The second information set includes a third information subset and a fourth information subset, the third information subset includes the second identifier, the third information subset is used to indicate the location of time domain resources occupied by the second search space, and the fourth information subset is updated by the second information subset.

85. The method in the second node according to any one of claims 72, 73, 74, 75, 80, 81, 83 or 84, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

86. The method in the second node according to claim 76, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

87. The method in the second node according to claim 77, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

88. The method in the second node according to claim 78, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

89. The method in the second node according to claim 79, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

90. The method in the second node according to claim 82, characterized in that: The target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first control signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second control signaling alternative set all belong to the second search space set, and any control signaling alternative in the third control signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second information subset is used to determine the first control signaling alternative set and the third control signaling alternative set.

91. The method in the second node according to any one of claims 83, 84 or 90, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

92. The method in the second node according to claim 82, characterized in that: When the second search space set is associated with the first search space set, the second search space set includes a second control signaling alternative set; when the second search space set is not associated with any search space set, the second search space set includes a fourth control signaling alternative set; the second control signaling alternative set is different from the fourth control signaling alternative set; the fourth information subset is used to determine the fourth control signaling alternative set.

93. The method in the second node according to any one of claims 72, 73, 74, 75, 80, 81, 83, 84, 86, 87, 88, 89, 90 or 92, characterized in that include: Sending a first signaling; receiving a first signal; The first signaling occupies one or more control signaling alternatives among the K1 control signaling alternatives, and the first signaling is used to schedule the first signal.

94. The method in the second node according to claim 76, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

95. The method in the second node according to claim 77, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

96. The method in the second node according to claim 78, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

97. The method in the second node according to claim 79, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

98. The method in the second node according to claim 82, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

99. The method in the second node according to claim 85, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

100. The method in the second node according to claim 91, characterized in that: include: Send a first signal; receive a first signal; wherein the first signal occupies one or more control signaling options among the K1 control signaling options, and the first signal is used to schedule the first signal.

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