Method and apparatus in node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. The first receiver receives a second information block, the second information block is used for determining a first search space set and a second search space set, and a third search space set is connected; receiving a first information block, wherein the first information block is used for determining a reference time domain resource set; monitoring at least a first PDCCH alternative in the first search space set and at least a target PDCCH alternative in a target search space set in a first time unit; wherein the first PDCCH alternative and the target PDCCH alternative are monitored to be used for detecting a DCI (Downlink Control Information) format with the same information; whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal or not. The interference is reduced, and the flexibility of the system is improved.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0002] In the existing NR (New Radio) system, spectrum resources are divided into FDD (Frequency Division Duplexing) spectrum and TDD (Time Division Duplexing) spectrum. For TDD spectrum, both base stations and UE (User Equipment) operate in half-duplex mode. This half-duplex mode avoids self-interference and can alleviate the impact of cross-link interference, but it also brings about a decrease in resource utilization and an increase in latency. In response to these problems, supporting flexible duplex modes or variable link directions (uplink or downlink or flexible) on TDD spectrum or FDD spectrum has become a possible solution. In the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #88e meeting and 3GPP R (Release)-18workshop, supporting more flexible duplex mode or full-duplex mode in NR R-18 has received extensive attention and discussion, especially the subband non-overlapping full-duplex (SBFD) mode at the gNB (NR Node B) end. In this mode, the same symbol will be used for uplink in part of the frequency resources and for downlink in another part of the frequency resources, so resource utilization is improved and latency is reduced. Summary of the invention

[0003] The inventors have discovered through research that how to determine a set of connected search spaces is a key issue.

[0004] In view of the above problems, the present application discloses a solution. It should be noted that in the description of the present application, only more flexible duplex mode, full-duplex mode and SBFD mode are used as examples, and the present application can also be applied to other duplex mode scenarios. Further, the use of a unified design scheme for different scenarios (including but not limited to more flexible duplex mode, full-duplex mode, SBFD mode, half-duplex mode, traditional duplex mode, network energy-saving mode, non-energy-saving mode, etc.) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments of any node of the present application and the features in the embodiments can be applied to any other node. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0005] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the TS38 series of specification protocols of 3GPP.

[0006] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the TS37 series of specification protocols of 3GPP.

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

[0008] receiving a second information block, wherein the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set;

[0009] receiving a first information block, wherein the first information block is used to determine a reference time domain resource set;

[0010] Monitoring at least a first PDCCH (Physical Downlink Control Channel) candidate in the first search space set and at least a target PDCCH candidate in a target search space set in a first time unit;

[0011] Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect the DCI (Downlink Control Information) format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0012] As an embodiment, the problem to be solved by the present application includes: how to determine a target search space set connected to the first search space set.

[0013] As an embodiment, the benefits of the above method include: configuring multiple search space sets connected to the first search space set, and determining one of them as the target search space set according to the time unit, thereby improving the flexibility of the system.

[0014] As an embodiment, the benefits of the above method include: providing a more appropriate target search space set in different time domain resources or symbols of different duplex types, thereby improving the performance of monitoring PDCCH candidates.

[0015] As an embodiment, the benefits of the above method include: simplifying the modification of the configuration of the connected search space set in the standard and reducing the signaling overhead.

[0016] According to one aspect of the present application, it is characterized in that when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0017] According to one aspect of the present application, it is characterized in that when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0018] According to one aspect of the present application, it is characterized in that when the PDCCH monitoring timing where the at least first PDCCH alternative in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0019] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0020] According to one aspect of the present application, it is characterized in that in the first time unit, the PDCCH alternatives in another search space set in the second search space set and the third search space set that is not the target search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information.

[0021] As an embodiment, the benefits of the above method include: reducing implementation complexity.

[0022] According to one aspect of the present application, it is characterized in that, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set are abandoned from monitoring.

[0023] As an embodiment, the benefits of the above method include: reducing the requirement on the UE's ability to monitor PDCCH candidates.

[0024] According to one aspect of the present application, it is characterized in that the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

[0025] As an embodiment, the advantages of the above method include: simple implementation and minor changes to the standard.

[0026] According to one aspect of the present application, it is characterized by comprising:

[0027] receiving a third information block;

[0028] Among them, the third information block indicates the configuration information of the first CORESET (Control Resource Set); the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI (Transmission Configuration Indicator) states; the two TCI states in the configuration information of the first CORESET respectively indicate the QCL (quasi co-location) information of the DMRS (Demodulation Reference Signal) antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0029] As an embodiment, the benefits of the above method include: the configuration information of the first CORESET includes two TCI states, so that the appropriate TCI state can be flexibly adopted as needed, thereby improving flexibility.

[0030] As an embodiment, the benefits of the above method include: providing different QCL information outside the reference time domain resource set and within the reference time domain resource, thereby enhancing the flexibility and reliability of PDCCH reception.

[0031] According to one aspect of the present application, it is characterized in that the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in the one or more symbols in the reference time domain resource set configured as DL by the higher layer parameter are used for uplink transmission.

[0032] As an embodiment, the benefits of the above method include: supporting uplink transmission on DL symbols, increasing uplink capacity, improving resource utilization, and reducing delay.

[0033] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0034] Sending a second information block, where the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set;

[0035] Sending a first information block, where the first information block is used to determine a reference time domain resource set;

[0036] Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0037] According to one aspect of the present application, it is characterized in that when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0038] According to one aspect of the present application, it is characterized in that when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0039] According to one aspect of the present application, it is characterized in that when the PDCCH monitoring timing where the at least first PDCCH alternative in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0040] According to one aspect of the present application, it is characterized in that in the first time unit, the PDCCH alternatives in another search space set in the second search space set and the third search space set that is not the target search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information.

[0041] According to one aspect of the present application, it is characterized in that, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set are abandoned from monitoring.

[0042] According to one aspect of the present application, it is characterized in that the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

[0043] According to one aspect of the present application, it is characterized by comprising:

[0044] sending a third information block;

[0045] Among them, the third information block indicates the configuration information of the first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0046] According to one aspect of the present application, it is characterized in that the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in the one or more symbols in the reference time domain resource set configured as DL by the higher layer parameter are used for uplink transmission.

[0047] According to one aspect of the present application, it is characterized in that both types of symbols are configured as DL by higher layer parameters, and the reference time domain resource set includes only one type of symbols of the two types.

[0048] The present application discloses a first node device used for wireless communication, characterized in that it includes:

[0049] A first receiver receives a second information block, where the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set;

[0050] The first receiver receives a first information block, where the first information block is used to determine a reference time domain resource set;

[0051] The first receiver monitors at least a first PDCCH candidate in the first search space set and at least a target PDCCH candidate in a target search space set in a first time unit;

[0052] Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0053] The present application discloses a second node device used for wireless communication, characterized in that it includes:

[0054] A second transmitter sends a second information block, where the second information block is used to determine that the first search space set is connected with the second search space set and the third search space set;

[0055] The second transmitter sends a first information block, where the first information block is used to determine a reference time domain resource set;

[0056] Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0057] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0058] Improved the performance of monitoring PDCCH candidates;

[0059] Improves system flexibility and reduces signaling overhead;

[0060] Reduced implementation complexity;

[0061] Changes to the standard are minor;

[0062] Reduces link interference and latency. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] 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:

[0064] Figure 1 A flow chart showing a second information block and a first information block according to an embodiment of the present application;

[0065] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0066] 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;

[0067] 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;

[0068] Figure 5 A flow chart showing transmission according to an embodiment of the present application is shown;

[0069] Figures 6A-6C Schematic diagrams showing that the target search space set is a third search space set according to an embodiment of the present application are shown respectively;

[0070] Figure 7A schematic diagram showing that PDCCH alternatives are not monitored for detecting DCI formats having the same information according to an embodiment of the present application;

[0071] Figure 8 A schematic diagram showing a PDCCH candidate being abandoned for monitoring according to an embodiment of the present application is shown;

[0072] Fig. 9 A schematic diagram showing a first type of parameter according to an embodiment of the present application is shown;

[0073] Fig.10 A schematic diagram showing a third information block according to an embodiment of the present application;

[0074] Figures 11A-11B Schematic diagrams showing a reference time domain resource set and two types of symbols according to an embodiment of the present application respectively;

[0075] Fig.12 A structural block diagram of a processing device used in a first node device according to an embodiment of the present application is shown;

[0076] Fig.13 A structural block diagram of a processing device used in a second node device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0077] 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 the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. Based on considerations such as flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, for example (but not limited to) the attached drawings. Figure 1 The embodiments and appendix Figure 5 -Attached Fig. 11B The embodiments in Figure 5 The embodiments and accompanying drawings 6- Fig. 11B Examples in, etc. Example 1

[0078] Embodiment 1 illustrates a flowchart of a second information block and a first information block according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the illustrated 100, each box represents a step. In particular, the order of the steps in the boxes does not represent a specific time sequence between the steps.

[0079] In Example 1, the first node in the present application receives a second information block in step 101, and the second information block is used to determine that the first search space set, the second search space set and the third search space set are connected; in step 102, a first information block is received, and the first information block is used to determine a reference time domain resource set; in step 103, at least a first PDCCH alternative in the first search space set and at least a target PDCCH alternative in the target search space set are monitored in a first time unit; wherein the first PDCCH alternative and the target PDCCH alternative are monitored to detect a DCI format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0080] As an embodiment, the second information block is carried by higher layer signaling.

[0081] As an embodiment, the second information block is carried by RRC (Radio Resource Control) signaling.

[0082] As an embodiment, the second information block includes information in all or part of a field in an RRC IE (Information Element).

[0083] As an embodiment, the second information block includes information in all or part of the fields in each RRC IE in multiple RRC IEs.

[0084] As an embodiment, the second information block includes information in all or part of the fields in the RRC IE whose name includes "SearchSpace".

[0085] As an embodiment, the second information block includes information in all or part of the domains in IE SearchSpace.

[0086] As an embodiment, the second information block includes information in all or part of the fields in each IE SearchSpace in multiple IE SearchSpaces.

[0087] As an embodiment, the second information block includes information in all or part of the fields in each IE SearchSpace in the three IE SearchSpaces.

[0088] As an embodiment, the second information block includes a domain in IE SearchSpace whose name includes "searchSpaceLinking".

[0089] As an embodiment, the second information block includes the searchSpaceLinkingId field in the IE SearchSpace.

[0090] As an embodiment, the second information block includes a domain whose name includes "searchSpaceLinking" in each IESearchSpace in the plurality of IE SearchSpaces.

[0091] As an embodiment, the second information block includes the searchSpaceLinkingId field in each IESearchSpace in multiple IE SearchSpaces.

[0092] As an embodiment, the searchSpaceLinkingId field in each IESearchSpace in the multiple IE SearchSpaces included in the second information block has the same value.

[0093] As an embodiment, the second information block includes a domain whose name includes "searchSpaceLinking" in each IE SearchSpace of the three IE SearchSpaces.

[0094] As an embodiment, the second information block includes the searchSpaceLinkingId field in each IESearchSpace in the three IE SearchSpaces.

[0095] As an embodiment, the searchSpaceLinkingId field in each IESearchSpace of the three IE SearchSpaces included in the second information block has the same value.

[0096] As an embodiment, the second information block includes one or more RRC IEs.

[0097] As an embodiment, the second information block includes one or more IE SearchSpaces.

[0098] As an embodiment, the second information block includes multiple IE SearchSpaces.

[0099] As an embodiment, the second information block includes three IE SearchSpaces.

[0100] As an embodiment, each IE SearchSpace of the three IE SearchSpaces included in the second information block includes a searchSpaceLinkingId field.

[0101] As an embodiment, each IE SearchSpace in the three IE SearchSpaces included in the second information block includes a searchSpaceLinkingId field, and the values ​​of the respective searchSpaceLinkingId fields are the same.

[0102] As an embodiment, for the specific definition of IE SearchSpace, searchSpaceLinkingId field, please refer to Section 6.3.2 of 3GPP TS 38.331.

[0103] As an embodiment, the second information block includes configuration information of the first search space set, configuration information of the second search space set, and configuration information of the third search space set.

[0104] As an embodiment, the second information block includes three RRC IEs, and the three RRC IEs respectively include configuration information of the first search space set, configuration information of the second search space set, and configuration information of the third search space set.

[0105] As an embodiment, the second information block includes three IE SearchSpaces, and the three IE SearchSpaces respectively include configuration information of a first search space set, configuration information of the second search space set, and configuration information of a third search space set.

[0106] As an embodiment, the configuration information of a search space set includes: a search space set index, an index of an associated CORESET, a periodicity and offset of PDCCH monitoring, a PDCCH monitoring pattern within a time slot, the number of time slots in which the search space set exists or the number of time slots in a consecutive time slot group, a bitmap indicating the time slots in a time slot group used for PDCCH monitoring, the number of PDCCH alternatives for each CCE (Control Channel Element) aggregation level, a search space type indication, and an indication of linking to another search space set.

[0107] As an embodiment, the configuration information of the search space set specifically refers to Section 10.1 of 3GPP TS 38.213.

[0108] As an embodiment, the searchSpaceId field in the IE SearchSpace included in the second information block configures the search space set index.

[0109] As an embodiment, the second information block includes the index of the CORESET associated with the controlResourceSetId field configuration in the IE SearchSpace.

[0110] As an embodiment, the monitoringSlotPeriodicityAndOffset field in the IE SearchSpace included in the second information block configures the period and offset of PDCCH monitoring.

[0111] As an embodiment, the second information block includes a monitoringSymbolsWithinSlot field in the IE SearchSpace to configure the PDCCH monitoring mode within the time slot.

[0112] As an embodiment, the duration field in the IE SearchSpace included in the second information block configures the number of time slots in which the search space set exists or the number of time slots in a continuous time slot group.

[0113] As an embodiment, the monitoringSlotsWithinSlotGroup field in the IE SearchSpace included in the second information block is configured to indicate a bit map of time slots in a time slot group used for PDCCH monitoring.

[0114] As an embodiment, the nrofCandidates field in the IE SearchSpace included in the second information block configures the number of PDCCH candidates for each CCE aggregation level.

[0115] As an embodiment, the searchSpaceType field in the IE SearchSpace included in the second information block configures the search space type indication.

[0116] As an embodiment, the second information block includes an indication that the searchSpaceLinkingId field configuration in the IE SearchSpace is connected to another search space set.

[0117] As an embodiment, the configuration information of the first search space set includes part or all of the configuration information of the first search space set.

[0118] As an embodiment, the configuration information of the first search space set includes at least a search space set index in the configuration information of the one search space set.

[0119] As an embodiment, the configuration information of the first search space set includes at least an indication of connection (link) with another search space set in the configuration information of the one search space set.

[0120] As an embodiment, the configuration information of the first search space set includes at least a search space set index (index) in the configuration information of the one search space set and an indication of connection (link) with another search space set.

[0121] As an embodiment, the configuration information of the first search space set includes at least a search space set index (index) and an index (index) of an associated CORESET in the configuration information of the search space set.

[0122] As an embodiment, the configuration information of the first search space set includes at least a search space set index (index) in the configuration information of the search space set, an index (index) of an associated CORESET, and an indication of connection (link) with another search space set.

[0123] As an embodiment, the configuration information of the second search space set includes part or all of the configuration information of the first search space set.

[0124] As an embodiment, the configuration information of the second search space set includes at least a search space set index in the configuration information of the one search space set.

[0125] As an embodiment, the configuration information of the second search space set includes at least an indication of connection (link) with another search space set in the configuration information of the one search space set.

[0126] As an embodiment, the configuration information of the second search space set includes at least a search space set index (index) in the configuration information of the one search space set and an indication of connection (link) with another search space set.

[0127] As an embodiment, the configuration information of the second search space set includes at least the search space set index (index) and the index (index) of the associated CORESET in the configuration information of the one search space set.

[0128] As an embodiment, the configuration information of the second search space set includes at least the search space set index (index) in the configuration information of the one search space set, the index (index) of the associated CORESET, and an indication of connection (link) with another search space set.

[0129] As an embodiment, the configuration information of the third search space set includes part or all of the configuration information of the first search space set.

[0130] As an embodiment, the configuration information of the third search space set includes at least a search space set index in the configuration information of the first search space set.

[0131] As an embodiment, the configuration information of the third search space set includes at least an indication of connection (link) with another search space set in the configuration information of the one search space set.

[0132] As an embodiment, the configuration information of the third search space set includes at least a search space set index (index) in the configuration information of the one search space set and an indication of connection (link) with another search space set.

[0133] As an embodiment, the configuration information of the third search space set includes at least the search space set index (index) and the index (index) of the associated CORESET in the configuration information of the one search space set.

[0134] As an embodiment, the configuration information of the third search space set includes at least the search space set index (index) in the configuration information of the one search space set, the index (index) of the associated CORESET, and an indication of connection (link) with another search space set.

[0135] As an embodiment, the indication of connection (link) with another search space set in the configuration information of the search space set includes a searchSpaceLinkingId field.

[0136] As an embodiment, the indication of connection (link) with another search space set in the configuration information of the search space set is a searchSpaceLinkingId field.

[0137] As an embodiment, the indication of connection (link) with another search space set in the configuration information of the search space set is carried by the searchSpaceLinkingId field.

[0138] Typically, the first search space set is connected to the second search space set, and the first search space set is connected to the third search space set.

[0139] As an embodiment, "the first search space set and the second search space set are connected" includes: the configuration information of the first search space set includes at least one first-category parameter, the configuration information of the second search space set includes at least one first-category parameter, and one first-category parameter in the configuration information of the first search space set and one first-category parameter in the configuration information of the second search space set have the same value.

[0140] As a sub-embodiment of the above embodiment, the first type of parameters includes an indication of connection (link) with another search space set in the configuration information of the one search space set.

[0141] As a sub-embodiment of the above embodiment, the first type of parameters includes searchSpaceLinkingId.

[0142] As a sub-embodiment of the above embodiment, the first type of parameter is searchSpaceLinkingId.

[0143] As a sub-embodiment of the above embodiment, the value of the first type of parameter is an integer.

[0144] As a sub-embodiment of the above embodiment, the value of the first type of parameter is a non-negative integer.

[0145] As an embodiment, "the first search space set and the second search space set are connected" includes: a PDCCH candidate in the first search space set and a PDCCH candidate in the second search space set are monitored to detect a DCI format having the same information.

[0146] As an embodiment, "the first search space set and the second search space set are connected" includes: the M PDCCH alternatives in the first search space set correspond to the M PDCCH alternatives in the second search space set respectively, and any PDCCH alternative among the M PDCCH alternatives in the first search space set and the corresponding one PDCCH alternative in the second search space set are monitored to detect a DCI format with the same information.

[0147] As an embodiment, M is an integer.

[0148] As an embodiment, M is a positive integer.

[0149] As an embodiment, "one PDCCH candidate in the first search space set corresponds to one PDCCH candidate in the second search space set" means that the index of the one PDCCH candidate in the first search space set is the same as the index of the one PDCCH candidate in the second search space set.

[0150] As an embodiment, "one PDCCH candidate in the first search space set corresponds to one PDCCH candidate in the second search space set" means that the one PDCCH candidate in the first search space set and the one PDCCH candidate in the second search space set belong to the same time slot.

[0151] As an embodiment, "one PDCCH alternative in the first search space set corresponds to one PDCCH alternative in the second search space set" means: the index of the one PDCCH alternative in the first search space set is the same as the index of the one PDCCH alternative in the second search space set, and the one PDCCH alternative in the first search space set and the one PDCCH alternative in the second search space set belong to the same time slot.

[0152] As an embodiment, "a PDCCH alternative in the first search space set corresponds to a PDCCH alternative in the second search space set" means that: within a first time span, the index of a PDCCH monitoring occasion (occasion) in the first search space set is the same as the index of a PDCCH monitoring occasion (occasion) in the second search space set, and the index of a PDCCH alternative in the PDCCH monitoring occasion in the first search space set is the same as the index of a PDCCH alternative in the PDCCH monitoring occasion in the second search space set.

[0153] As an embodiment, the first time span includes at least one PDCCH monitoring opportunity.

[0154] As an embodiment, the first time span includes at least one PDCCH monitoring opportunity in the first search space set.

[0155] As an embodiment, the first time span includes at least one PDCCH monitoring opportunity in the second search space set.

[0156] As an embodiment, the first time span includes at least one PDCCH monitoring opportunity in the first search space set and at least one PDCCH monitoring opportunity in the second search space set.

[0157] As an embodiment, the first time span includes at least one time slot.

[0158] As an embodiment, the first time span includes a time slot.

[0159] As an embodiment, the first time span is a time slot.

[0160] As an embodiment, the first time span includes at least one subframe.

[0161] As an embodiment, the first time span includes one subframe.

[0162] As an embodiment, the first time span is a subframe.

[0163] As an embodiment, "one PDCCH candidate in the first search space set corresponds to one PDCCH candidate in the second search space set" means that: the identifier of the one PDCCH candidate in the first search space set is the same as the identifier of the one PDCCH candidate in the second search space set.

[0164] As an embodiment, "a PDCCH alternative in the first search space set corresponds to a PDCCH alternative in the second search space set" means that: within a first time span, the index of a PDCCH monitoring occasion (occasion) in the first search space set is the same as the index of a PDCCH monitoring occasion (occasion) in the second search space set, and the identifier of a PDCCH alternative in the PDCCH monitoring occasion in the first search space set is the same as the identifier of a PDCCH alternative in the PDCCH monitoring occasion in the second search space set.

[0165] As an embodiment, "the first search space set and the second search space set are connected" includes: the first search space set and the second search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, and the same number of non-overlapping PDCCH monitoring opportunities in each time slot.

[0166] As an embodiment, "the first search space set and the second search space set are connected" includes: the first search space set and the second search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, the same number of non-overlapping PDCCH monitoring opportunities per time slot, and one PDCCH alternative in the first search space set and one PDCCH alternative in the second search space set are monitored to detect a DCI format with the same information.

[0167] As an embodiment, "the first search space set and the second search space set are connected" includes: the first search space set and the second search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, the same number of non-overlapping PDCCH monitoring opportunities in each time slot, and the M PDCCH alternatives in the first search space set correspond to the M PDCCH alternatives in the second search space set respectively, and any PDCCH alternative among the M PDCCH alternatives in the first search space set and the corresponding one PDCCH alternative in the second search space set are monitored to detect a DCI format with the same information.

[0168] As an embodiment, "the first search space set and the third search space set are connected" includes: the configuration information of the first search space set includes at least one first-class parameter, the configuration information of the third search space set includes at least one first-class parameter, and one first-class parameter in the configuration information of the first search space set and one first-class parameter in the configuration information of the third search space set have the same value.

[0169] As a sub-embodiment of the above embodiment, the first type of parameters includes an indication of connection (link) with another search space set in the configuration information of the one search space set.

[0170] As a sub-embodiment of the above embodiment, the first type of parameters includes searchSpaceLinkingId.

[0171] As a sub-embodiment of the above embodiment, the first type of parameter is searchSpaceLinkingId.

[0172] As a sub-embodiment of the above embodiment, the value of the first type of parameter is an integer.

[0173] As a sub-embodiment of the above embodiment, the value of the first type of parameter is a non-negative integer.

[0174] As an embodiment, "the first search space set and the third search space set are connected" includes: a PDCCH candidate in the first search space set and a PDCCH candidate in the third search space set are monitored to detect a DCI format having the same information.

[0175] As an embodiment, "the first search space set and the third search space set are connected" includes: the M PDCCH alternatives in the first search space set correspond to the M PDCCH alternatives in the third search space set respectively, and any PDCCH alternative among the M PDCCH alternatives in the first search space set and the corresponding one PDCCH alternative in the third search space set are monitored to detect a DCI format with the same information.

[0176] As an embodiment, M is an integer.

[0177] As an embodiment, M is a positive integer.

[0178] As an embodiment, "a PDCCH candidate in the first search space set corresponds to a PDCCH candidate in the third search space set" means that the index of the one PDCCH candidate in the first search space set is the same as the index of the one PDCCH candidate in the third search space set.

[0179] As an embodiment, "one PDCCH candidate in the first search space set corresponds to one PDCCH candidate in the third search space set" means that the one PDCCH candidate in the first search space set and the one PDCCH candidate in the third search space set belong to the same time slot.

[0180] As an embodiment, "one PDCCH alternative in the first search space set corresponds to one PDCCH alternative in the third search space set" means: the index of the one PDCCH alternative in the first search space set is the same as the index of the one PDCCH alternative in the third search space set, and the one PDCCH alternative in the first search space set and the one PDCCH alternative in the third search space set belong to the same time slot.

[0181] As an embodiment, "a PDCCH alternative in the first search space set corresponds to a PDCCH alternative in the third search space set" means that: within the second time span, the index of a PDCCH monitoring occasion (occasion) in the first search space set is the same as the index of a PDCCH monitoring occasion (occasion) in the third search space set, and the index of a PDCCH alternative in the PDCCH monitoring occasion in the first search space set is the same as the index of a PDCCH alternative in the PDCCH monitoring occasion in the third search space set.

[0182] As an embodiment, the second time span includes at least one PDCCH monitoring opportunity.

[0183] As an embodiment, the second time span includes at least one PDCCH monitoring opportunity in the first search space set.

[0184] As an embodiment, the second time span includes at least one PDCCH monitoring opportunity in the third search space set.

[0185] As an embodiment, the second time span includes at least one PDCCH monitoring opportunity in the first search space set and at least one PDCCH monitoring opportunity in the third search space set.

[0186] As an embodiment, the second time span includes at least one time slot.

[0187] As an embodiment, the second time span includes a time slot.

[0188] As an embodiment, the second time span is a time slot.

[0189] As an embodiment, the second time span includes at least one subframe.

[0190] As an embodiment, the second time span includes one subframe.

[0191] As an embodiment, the second time span is one subframe.

[0192] As an embodiment, "a PDCCH candidate in the first search space set corresponds to a PDCCH candidate in the third search space set" means that: the identifier of the one PDCCH candidate in the first search space set is the same as the identifier of the one PDCCH candidate in the third search space set.

[0193] As an embodiment, "a PDCCH alternative in the first search space set corresponds to a PDCCH alternative in the third search space set" means that: within the second time span, the index of a PDCCH monitoring occasion (occasion) in the first search space set is the same as the index of a PDCCH monitoring occasion (occasion) in the third search space set, and the identifier of a PDCCH alternative in the PDCCH monitoring occasion in the first search space set is the same as the identifier of a PDCCH alternative in the PDCCH monitoring occasion in the third search space set.

[0194] As an embodiment, "the first search space set and the third search space set are connected" includes: the first search space set and the third search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, and the same number of non-overlapping PDCCH monitoring opportunities in each time slot.

[0195] As an embodiment, "the first search space set and the third search space set are connected" includes: the first search space set and the third search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, the same number of non-overlapping PDCCH monitoring opportunities per time slot, and one PDCCH alternative in the first search space set and one PDCCH alternative in the third search space set are monitored to detect a DCI format with the same information.

[0196] As an embodiment, "the first search space set and the third search space set are connected" includes: the first search space set and the third search space set have the same PDCCH monitoring period (periodicity) and offset (offset), the same number of time slots in which the search space set exists or the number of time slots in consecutive time slot groups, the same number of PDCCH alternatives for each CCE aggregation level, the same number of non-overlapping PDCCH monitoring opportunities in each time slot, and the M PDCCH alternatives in the first search space set correspond to the M PDCCH alternatives in the third search space set respectively, and any PDCCH alternative among the M PDCCH alternatives in the first search space set and the corresponding one PDCCH alternative in the third search space set are monitored to detect DCI formats with the same information.

[0197] As an embodiment, the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes a first-category parameter, the configuration information of the second search space set includes a first-category parameter, and the configuration information of the third search space set includes a first-category parameter, and the first-category parameters in the configuration information of the first search space set, the first-category parameters in the configuration information of the second search space set and the first-category parameters in the configuration information of the third search space set all have the same value.

[0198] As an embodiment, the first information block is carried by higher layer signaling.

[0199] As an embodiment, the first information block is carried by RRC (Radio Resource Control) signaling.

[0200] As an embodiment, the first information block includes all or part of a field in an RRC IE (Information Element).

[0201] As an embodiment, the first information block includes all or part of the fields in each RRC IE in multiple RRC IEs.

[0202] As an embodiment, the first information block includes all or part of the fields in the TDD-UL-DL-ConfigCommon IE.

[0203] As an embodiment, the first information block includes all or part of the fields in the TDD-UL-DL-ConfigDedicated IE.

[0204] As an embodiment, the first information block includes all or part of the fields in the ServingCellConfig IE.

[0205] As an embodiment, the first information block includes all or part of the fields in the ServingCellConfigCommonSIB IE.

[0206] As an embodiment, the first information block includes information in all or part of the fields in the ServingCellConfigCommon IE.

[0207] As an embodiment, the first information block is carried by at least one RRC IE.

[0208] As an embodiment, the first information block is carried by TDD-UL-DL-ConfigCommon IE.

[0209] As an embodiment, the first information block is carried by TDD-UL-DL-ConfigDedicated IE.

[0210] As an embodiment, the first information block is carried by ServingCellConfig IE.

[0211] As an embodiment, the first information block is carried by ServingCellConfigCommonSIB IE.

[0212] As an embodiment, the first information block is carried by ServingCellConfigCommon IE.

[0213] As an embodiment, a name of an IE carrying the first information block includes TDD-UL-DL-Config.

[0214] As an embodiment, the name of an IE carrying the first information block includes ServingCellConfig.

[0215] As an embodiment, the first information block is carried by a MAC CE (Medium Access Control layer Control Element).

[0216] As an embodiment, the first information block includes MAC CE.

[0217] As an embodiment, the first information block is carried by DCI (Downlink control information).

[0218] As an embodiment, the first information block includes DCI.

[0219] As an embodiment, the first information block includes one or more fields in a DCI.

[0220] As an embodiment, the first information block is carried by DCI format 2_0.

[0221] As an embodiment, the first information block includes DCI format 2_0.

[0222] As an embodiment, the first information block is carried jointly by RRC signaling and MAC CE.

[0223] As an embodiment, the first information block is carried jointly by higher layer signaling and DCI.

[0224] As an embodiment, for the specific definitions of TDD-UL-DL-ConfigCommon IE, TDD-UL-DL-ConfigDedicated IE, ServingCellConfig IE, ServingCellConfigCommonSIB IE, and ServingCellConfigCommonIE, please refer to Section 6.3.2 of 3GPP TS 38.331.

[0225] As an embodiment, the specific definition of DCI format 2_0 refers to Section 7.3.1 of 3GPP TS 38.212.

[0226] As an embodiment, the first information block indicates the reference time domain resource set.

[0227] As an embodiment, the first information block is used to indicate the reference time domain resource set.

[0228] As an embodiment, the first information block explicitly indicates the reference time domain resource set.

[0229] As an embodiment, the first information block implicitly indicates the reference time domain resource set.

[0230] As an embodiment, the first information block indicates the period and time offset of the reference time domain resource set.

[0231] As an embodiment, the first information block indicates the time domain resources included in the reference time domain resource set within a period.

[0232] As an embodiment, the first information block indicates the symbols included in the reference time domain resource set within a period.

[0233] As an embodiment, the first information block indicates the time slots included in the reference time domain resource set within a period.

[0234] As an embodiment, the first information block indicates which symbols belong to the reference time domain resource set.

[0235] As an embodiment, the first information block configures the symbols in the reference time domain resource set as a first type.

[0236] As an embodiment, the first information block indicates the reference time domain resource set by configuring symbols in the reference time domain resource set as a first type.

[0237] As an embodiment, the first type is different from uplink (Downlink, DL) and downlink (Uplink, UL).

[0238] As an embodiment, the first type is different from uplink, downlink and Flexible.

[0239] As an embodiment, the first type is different from sidelink.

[0240] As an embodiment, the first information block indicates the reference time domain resource set by configuring frequency domain resources used for uplink for symbols configured as DL or Flexible by higher layer parameters.

[0241] As an embodiment, the higher layer parameter is an RRC parameter.

[0242] As an embodiment, the higher layer parameters include tdd-UL-DL-ConfigurationCommon.

[0243] As an embodiment, the higher layer parameter includes tdd-UL-DL-ConfigurationDedicated.

[0244] As an embodiment, the higher layer parameters include tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0245] As an embodiment, the higher layer parameter includes at least one of tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0246] As an embodiment, the reference time domain resource set includes one or more symbols.

[0247] As an embodiment, the reference time domain resource set includes a symbol.

[0248] As an embodiment, the reference time domain resource set includes multiple symbols.

[0249] As an embodiment, the reference time domain resource set includes one or more symbols of the first type.

[0250] As an embodiment, the reference time domain resource set includes at least one time slot.

[0251] As an embodiment, the reference time domain resource set includes at least one subframe.

[0252] As an embodiment, the symbol is a single carrier symbol.

[0253] As an embodiment, the symbol is a multi-carrier symbol.

[0254] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0255] As an embodiment, the multi-carrier symbol is obtained by subjecting the output of a transform precoding device to OFDM symbol generation.

[0256] As an embodiment, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0257] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0258] As an embodiment, the multi-carrier symbol is a FBMC (Filter Bank Multi Carrier) symbol.

[0259] As an embodiment, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0260] As an embodiment, the reference time domain resource set includes symbols used for both uplink transmission and downlink transmission.

[0261] As an embodiment, any symbol in the reference time domain resource set can be used for uplink transmission and downlink transmission at the same time.

[0262] As an embodiment, any symbol in the reference time domain resource set is used for both uplink transmission and downlink transmission.

[0263] As an embodiment, at least one symbol in the reference time domain resource set is used for both uplink transmission and downlink transmission.

[0264] As an embodiment, at least one symbol in the reference time domain resource set is configured for both uplink and downlink.

[0265] As an embodiment, at least one symbol in the reference time domain resource set is used for both uplink and downlink.

[0266] As an embodiment, each symbol in the reference time domain resource set is configured for both uplink and downlink.

[0267] As an embodiment, each symbol in the reference time domain resource set is used for both uplink and downlink.

[0268] As an embodiment, at least one symbol in the reference time domain resource set is configured for uplink in part of RBs (Resource Blocks) and is configured for downlink in another part of RBs.

[0269] As an embodiment, at least one symbol in the reference time domain resource set is used for uplink in part of RBs, and is used for downlink in another part of RBs.

[0270] As an embodiment, each symbol in the reference time domain resource set is configured for uplink in part of RBs, and is configured for downlink in another part of RBs.

[0271] As an embodiment, each symbol in the reference time domain resource set is used for uplink in part of RBs, and is used for downlink in another part of RBs.

[0272] As an embodiment, at least one symbol in the reference time domain resource set is configured for uplink in part of RBs in a serving cell, and is configured for downlink in another part of RBs.

[0273] As an embodiment, at least one symbol in the reference time domain resource set is used for uplink in part of RBs in a serving cell, and is used for downlink in another part of RBs.

[0274] As an embodiment, each symbol in the reference time domain resource set is configured for uplink in part of RBs in a serving cell, and is configured for downlink in another part of RBs.

[0275] As an embodiment, each symbol in the reference time domain resource set is used for uplink in part of RBs in a serving cell, and is used for downlink in another part of RBs.

[0276] As an embodiment, the reference time domain resource set is configured for a service cell; on the service cell, in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameter, at least one subcarrier or at least one RB is used for uplink transmission.

[0277] As an embodiment, the reference time domain resource set is configured to at least one BWP (BandWidthPart, bandwidth interval); on the at least one BWP, in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0278] As an embodiment, the reference time domain resource set is configured to a BWP; on the one BWP, in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameter, at least one subcarrier or at least one RB is used for uplink transmission.

[0279] As an embodiment, the reference time domain resource set is configured to a pair of DL BWP and ULBWP, and on the UL BWP in the pair of DL BWP and UL BWP, in at least one symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0280] As an embodiment, the reference time domain resource set is configured to a DL BWP; the first UL BWP is the UL BWP in a pair of DL BWP and UL BWP to which the DL BWP belongs; on the first ULBWP, in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0281] As an embodiment, the reference time domain resource set is configured for a service cell; on the service cell, in each symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0282] As an embodiment, the reference time domain resource set is configured to at least one BWP (BandWidthPart, bandwidth interval); on the at least one BWP, in each symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0283] As an embodiment, the reference time domain resource set is configured to a BWP; on the one BWP, in each symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0284] As an embodiment, the reference time domain resource set is configured to a pair of DL BWP and ULBWP, and on the UL BWP in the pair of DL BWP and UL BWP, in each symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0285] As an embodiment, the reference time domain resource set is configured to a DL BWP; the first UL BWP is the UL BWP in a pair of DL BWP and UL BWP to which the DL BWP belongs; on the first ULBWP, in each symbol of the reference time domain resource set configured as DL by the higher layer parameters, at least one subcarrier or at least one RB is used for uplink transmission.

[0286] As an embodiment, the RB includes a positive integer number of subcarriers.

[0287] As an embodiment, the RB includes a positive integer number of consecutive subcarriers.

[0288] As an embodiment, the RB includes 12 consecutive subcarriers.

[0289] As an embodiment, the specific definition of the RB refers to Chapter 4 of 3GPP TS 38.211.

[0290] As an embodiment, the one serving cell is a cell where the first information block is transmitted.

[0291] As an embodiment, the one serving cell is a cell in which the first information block is configured.

[0292] As an embodiment, the one serving cell is a cell including the first information block.

[0293] As an embodiment, the one serving cell is a cell where the second information block is transmitted.

[0294] As an embodiment, the one serving cell is a cell in which the second information block is configured.

[0295] As an embodiment, the one serving cell is a cell including the second information block.

[0296] As an embodiment, the reference time domain resource set includes symbols used for full duplex / SBFD.

[0297] As an embodiment, each symbol in the reference time domain resource set is used for full duplex / SBFD.

[0298] As an embodiment, the problem to be solved by the present application includes: in a system supporting full-duplex / SBFD or a system supporting uplink and downlink transmission in the same symbol, how to determine the connected search space sets. In the above method, the first search space set is connected to two search space sets, the target search space set is one of the two search space sets, and which one the target search space set is depends on whether the first time unit and the reference time domain resource are orthogonal, which solves this problem.

[0299] As an embodiment, the benefits of the above method include: providing a more appropriate target search space set in symbols of different duplex types, thereby improving the performance of monitoring PDCCH candidates.

[0300] As an embodiment, any symbol that does not belong to the reference time domain resource set is used only for uplink or only for downlink.

[0301] As an embodiment, any symbol that does not belong to the reference time domain resource set is configured only for uplink or only for downlink.

[0302] As an embodiment, any symbol that does not belong to the reference time domain resource set is only used for uplink or only used for downlink in the one serving cell.

[0303] As an embodiment, any symbol that does not belong to the reference time domain resource set is configured only for uplink or only for downlink in the one serving cell.

[0304] As an embodiment, the first time unit includes one or more symbols.

[0305] As an embodiment, the first time unit includes one or more consecutive symbols.

[0306] As an embodiment, the first time unit includes one or more time slots.

[0307] As an embodiment, the first time unit includes one or more PDCCH monitoring opportunities of the first search space set, one or more PDCCH monitoring opportunities of the second search space set, and one or more PDCCH monitoring opportunities of the third search space set.

[0308] As an embodiment, the first time unit includes one PDCCH monitoring opportunity of the first search space set, one PDCCH monitoring opportunity of the second search space set, and one PDCCH monitoring opportunity of the third search space set.

[0309] As an embodiment, the first time unit includes one or more PDCCH monitoring opportunities of the first search space set and one or more PDCCH monitoring opportunities of the target search space set.

[0310] As an embodiment, the first time unit includes a PDCCH monitoring opportunity of the first search space set and a PDCCH monitoring opportunity of the target search space set.

[0311] As an embodiment, the first time unit includes a PDCCH monitoring opportunity of the first search space set and a PDCCH monitoring opportunity of the target search space set in the same time slot.

[0312] As an embodiment, the first time unit includes a PDCCH monitoring period of the first search space set and a PDCCH monitoring period of the target search space set, and a PDCCH alternative in the one PDCCH monitoring period of the first search space set and a PDCCH alternative in the one PDCCH monitoring period of the target search space set are monitored for detecting a DCI format having the same information.

[0313] As an embodiment, the first time unit includes a PDCCH monitoring time of the first search space set and a PDCCH monitoring time of the target search space set in the same time slot; in the first time unit, the N PDCCH alternatives in the first search space set correspond to the N PDCCH alternatives in the target search space set respectively; any PDCCH alternative among the N PDCCH alternatives in the first search space set and the corresponding one PDCCH alternative in the target search space set are monitored to detect a DCI format with the same information.

[0314] As an embodiment, N is an integer.

[0315] As an embodiment, N is a positive integer.

[0316] As an embodiment, the first time unit includes a time slot.

[0317] As an embodiment, the first time unit is a time slot.

[0318] As an embodiment, the first node monitors at least one PDCCH candidate in the first search space set and at least one PDCCH candidate in the target search space set.

[0319] As an embodiment, the first node monitors at least the first PDCCH candidate in the first search space set and at least the target PDCCH candidate in the target search space set.

[0320] As an embodiment, the first node monitors multiple PDCCH candidates in the first search space set and multiple PDCCH candidates in the target search space set.

[0321] As an embodiment, the first node further monitors PDCCH candidates in a search space set other than the first search space set and the target search space set.

[0322] As an embodiment, the first node further monitors one or more PDCCH candidates in a search space set other than the first search space set and the target search space set.

[0323] As an embodiment, the meaning of "monitoring" includes: receiving.

[0324] As an embodiment, the meaning of "monitoring" includes: decoding the PDCCH candidates.

[0325] As an embodiment, the meaning of "monitoring" includes: blind decoding (Blind Decoding) of PDCCH candidates.

[0326] As an embodiment, the meaning of "monitoring" includes: decoding and CRC (Cyclic Redundancy Check) checking of PDCCH candidates.

[0327] As an embodiment, the meaning of "monitoring" includes: decoding of PDCCH candidates and CRC check of RNTI (Radio Network Temporary Identity) scrambling.

[0328] As an embodiment, the meaning of "monitoring" includes: decoding the PDCCH candidate based on the monitored DCI format (Format(s)).

[0329] As an embodiment, the meaning of "monitoring" includes: decoding the PDCCH candidate based on one or more monitored DCI formats (Format(s)).

[0330] As an embodiment, the target PDCCH candidate and the first PDCCH candidate are included in one PDCCH reception.

[0331] As an embodiment, the target PDCCH candidate and the first PDCCH candidate belong to the same PDCCH reception.

[0332] As an embodiment, the target PDCCH candidate is a PDCCH candidate in the target search space set connected to the first PDCCH candidate.

[0333] As an embodiment, the target PDCCH candidate and the first PDCCH candidate are monitored to detect a DCI format having the same information.

[0334] As an embodiment, the index of the target PDCCH candidate in the target search space set is the same as the index of the first PDCCH candidate in the first search space set.

[0335] As an embodiment, the target PDCCH candidate and the first PDCCH candidate belong to the same time slot in the time domain.

[0336] As an embodiment, the target PDCCH candidate and the first PDCCH candidate belong to the same time slot in the time domain, and the index of the PDCCH monitoring timing where the first PDCCH candidate is located is the same as the index of the PDCCH monitoring timing where the second PDCCH candidate is located.

[0337] As an embodiment, the index of the second PDCCH alternative in the second search space set is the same as the index of the first PDCCH alternative in the first search space set, the second PDCCH alternative and the first PDCCH alternative belong to the same time slot in the time domain, and the index of the PDCCH monitoring timing where the first PDCCH alternative is located is the same as the index of the PDCCH monitoring timing where the second PDCCH alternative is located.

[0338] As an embodiment, the first PDCCH candidate and the target PDCCH candidate include at least one identical symbol in the time domain.

[0339] As an embodiment, the first PDCCH candidate and the target PDCCH candidate are orthogonal in the time domain.

[0340] As an embodiment, the first PDCCH candidate and the target PDCCH candidate overlap in the time domain.

[0341] As an embodiment, "the first PDCCH alternative and the target PDCCH alternative are monitored for detecting a DCI format having the same information" includes: the DCI format that the first PDCCH alternative is monitored for detecting and the DCI format that the target PDCCH alternative is monitored for detecting have the same information.

[0342] As an embodiment, "the first PDCCH candidate and the target PDCCH candidate are monitored to detect a DCI format having the same information" includes: the first PDCCH candidate and the target PDCCH candidate are monitored by the first node to detect a DCI format having the same information.

[0343] As an embodiment, "the first PDCCH candidate and the target PDCCH candidate are monitored for detecting a DCI format having the same information" includes: the monitoring of the first PDCCH candidate and the target PDCCH candidate is assumed by the first node to be used to detect a DCI format having the same information.

[0344] As an embodiment, "the first PDCCH alternative and the target PDCCH alternative are monitored for detecting a DCI format having the same information" includes: the first PDCCH alternative and the target PDCCH alternative are monitored by the first node, and the first node assumes that the DCI format that the first PDCCH alternative is monitored for detection and the DCI format that the target PDCCH alternative is monitored for detection have the same information.

[0345] As an embodiment, the target search space set is the second search space set.

[0346] As an embodiment, the target search space set is the third search space set.

[0347] As an embodiment, whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal.

[0348] As an embodiment, whether the target search space set is the second search space set or the third search space set depends on whether the PDCCH monitoring timing of the at least first PDCCH alternative in the first search space set monitored in the first time unit and the reference time domain resource set are orthogonal.

[0349] As an embodiment, whether the target search space set is the second search space set or the third search space set depends on whether the PDCCH monitoring timing of the second search space set in the first time unit is orthogonal to the reference time domain resource set.

[0350] As an embodiment, whether the target search space set is the second search space set or the third search space set depends on whether the PDCCH monitoring timing of the at least first PDCCH alternative in the first search space set monitored in the first time unit is orthogonal to the PDCCH monitoring timing of the second search space set in the first time unit and the reference time domain resource set.

[0351] As an embodiment, whether the target search space set is the second search space set or the third search space set depends on whether the PDCCH monitoring timing of the at least first PDCCH alternative in the first search space set monitored in the first time unit and the reference time domain resource set are orthogonal to whether the PDCCH monitoring timing of the second search space set in the first time unit and the reference time domain resource set are orthogonal.

[0352] As an embodiment, when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0353] As an embodiment, when the PDCCH monitoring timing of the at least first PDCCH candidate in the first search space set monitored in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0354] As an embodiment, when the PDCCH monitoring timing of the second search space set in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0355] As an embodiment, when the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit and the PDCCH monitoring timing of the second search space set in the first time unit are both orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0356] As an embodiment, when the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit is orthogonal to the reference time domain resource set and the PDCCH monitoring timing of the second search space set in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0357] As an embodiment, when the first time unit and the reference time domain resource set overlap, the target search space set is the third search space set.

[0358] As an embodiment, when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0359] As an embodiment, when the PDCCH monitoring timing where the at least first PDCCH candidate in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0360] As an embodiment, when the PDCCH monitoring timing of the second search space set in the first time unit belongs to the reference time domain resource set and the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0361] As an embodiment, "the first time unit overlaps with the reference time domain resource set" means that there is at least one symbol in the first time unit that overlaps with the reference time domain resource set.

[0362] As an embodiment, "the first time unit overlaps with the reference time domain resource set" means that: there is at least one symbol in the first time unit that belongs to the reference time domain resource set.

[0363] As an embodiment, "the first time unit overlaps with the reference time domain resource set" means that: multiple symbols in the first time unit overlap with the reference time domain resource set.

[0364] As an embodiment, "the first time unit overlaps with the reference time domain resource set" means that: multiple symbols in the first time unit belong to the reference time domain resource set.

[0365] As an embodiment, “the first time unit overlaps with the reference time domain resource set” means that part of the first time unit overlaps with the reference time domain resource set.

[0366] As an embodiment, “the first time unit overlaps with the reference time domain resource set” means that: the first time unit belongs to the reference time domain resource set.

[0367] Example 2

[0368] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0369] Attached Figure 2 The network architecture 200 of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems is illustrated. The network architecture 200 of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. 5GS / EPS200 may include one or more UEs (User Equipment) 201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. 5GS / EPS200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, 5GS / EPS200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. NG-RAN202 includes NR (New Radio) Node B (gNB) 203 and other gNBs204. gNB203 provides user and control plane protocol terminations toward UE201. gNB203 can be connected to other gNBs204 via an Xn interface (e.g., backhaul). gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive point), or some other suitable term. gNB203 provides an access point to 5GC / EPC210 for UE201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is a control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which is itself connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and Packet switching services.

[0370] As an embodiment, the first node in the present application includes the UE201.

[0371] As an embodiment, the second node in the present application includes the gNB203.

[0372] As an embodiment, the wireless link between the UE201 and the gNB203 includes a cellular network link.

[0373] As an embodiment, the sender of the first information block includes the gNB203.

[0374] As an embodiment, the receiver of the first information block includes the UE201.

[0375] As an embodiment, the sender of the second information block includes the gNB203.

[0376] As an embodiment, the receiver of the second information block includes the UE201.

[0377] As an embodiment, the gNB203 supports SBFD.

[0378] As an embodiment, the gNB203 supports a more flexible duplex mode or a full-duplex mode.

[0379] As an embodiment, the UE 201 supports SBFD.

[0380] As an embodiment, the UE 201 supports a more flexible duplex mode or a full-duplex mode.

[0381] Example 3

[0382] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0383] 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 a first communication node device (UE, gNB or RSU in V2X) and a second communication node device (gNB, UE or RSU in V2X), or between two UEs is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) 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, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node 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 (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower 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.).

[0384] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0385] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0386] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0387] As an embodiment, the first information block is generated in the RRC sublayer 306.

[0388] As an embodiment, the first information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0389] As an embodiment, the first information block is generated in the PHY301 or the PHY351.

[0390] As an embodiment, the second information block is generated in the RRC sublayer 306.

[0391] As an embodiment, the second information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0392] As an embodiment, the third information block is generated in the RRC sublayer 306.

[0393] As an embodiment, the third information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0394] Example 4

[0395] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 Attached Figure 4is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0396] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0397] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0398] In transmission from the first communication device 410 to the second communication device 450, at the first 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 the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second 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 450, as well as constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more parallel The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols 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 different antennas 420.

[0399] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its 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 parallel stream destined for the second communication device 450. The symbols on each parallel 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 first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL (DownLink, downlink), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels 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. The controller / processor 459 is also responsible for error detection using confirmation (ACK) and / or negative confirmation (NACK) protocols to support HARQ operations.

[0400] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first 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 parallel 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.

[0401] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its 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 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0402] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 device at least: receives a second information block, the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; receives a first information block, the first information block is used to determine the reference time domain resource set; monitors at least the first PDCCH candidate in the first search space set and at least the target PDCCH candidate in the target search space set in a first time unit; wherein the first PDCCH candidate and the target PDCCH candidate are monitored to detect a DCI format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0403] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, the actions including: receiving a second information block, the second information block being used to determine that a first search space set is connected to a second search space set and a third search space set; receiving a first information block, the first information block being used to determine a reference time domain resource set; monitoring at least a first PDCCH alternative in the first search space set and at least a target PDCCH alternative in a target search space set in a first time unit; wherein the first PDCCH alternative and the target PDCCH alternative are monitored for detecting a DCI format having the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0404] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least: sends a second information block, the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; sends a first information block, the first information block is used to determine a reference time domain resource set; wherein the first PDCCH alternative and the target PDCCH alternative are monitored to detect a DCI format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0405] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a second information block, the second information block is used to determine that the first search space set and the second search space set and the third search space set are connected; sending a first information block, the first information block is used to determine a reference time domain resource set; wherein the first PDCCH alternative and the target PDCCH alternative are monitored to detect a DCI format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0406] As an embodiment, the first node in the present application includes the second communication device 450.

[0407] As an embodiment, the second node in the present application includes the first communication device 410.

[0408] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block in the present application; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the first information block in the present application.

[0409] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second information block in the present application; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the second information block in the present application.

[0410] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the third information block in the present application; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the third information block in the present application.

[0411] Example 5

[0412] Embodiment 5 illustrates a flow chart of transmission according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 , the first node U01 and the second node N02 are two communication nodes transmitted via an air interface, respectively, wherein the steps in block F51 are optional.

[0413] for First node U01 , receiving the second information block in step S5101; receiving the first information block in step S5102; receiving the third information block in step S5103; and monitoring at least the first PDCCH alternative in the first search space set and at least the target PDCCH alternative in the target search space set in a first time unit in step S5104.

[0414] for Second node N02 , in step S5201, the second information block is sent; in step S5202, the first information block is sent; in step S5203, the third information block is sent.

[0415] In embodiment 5, the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; the first information block is used to determine the reference time domain resource set; the first PDCCH alternative and the target PDCCH alternative are monitored to detect the DCI format with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0416] As an embodiment, the first node U01 is the first node in this application.

[0417] As an embodiment, the second node N02 is the second node in this application.

[0418] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between a base station device and a user equipment.

[0419] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between a relay node device and a user equipment.

[0420] As an embodiment, the air interface between the second node N02 and the first node U01 includes a wireless interface between user equipments.

[0421] As an embodiment, the second node N02 is a service cell maintaining base station of the first node U01.

[0422] As an embodiment, the second information block is used by the first node U01 to determine that the first search space set, the second search space set, and the third search space set are connected.

[0423] As an embodiment, the first information block is used by the first node U01 to determine the reference time domain resource set.

[0424] As an embodiment, the steps in the dashed box F51 do not exist.

[0425] As an embodiment, the steps in the dashed box F51 exist.

[0426] As an embodiment, the steps in the dotted box F51 exist, and the method in the first node U01 used for wireless communication includes: receiving a third information block; wherein the third information block indicates configuration information of a first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states.

[0427] As an embodiment, the steps in the dotted box F51 exist, and the method in the second node N02 used for wireless communication includes: sending a third information block; wherein the third information block indicates configuration information of the first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states.

[0428] As an embodiment, the third information block and the second information block belong to the same RRC IE.

[0429] As an embodiment, the third information block and the second information block belong to the same RRC IE whose name includes "PDCCH-Config".

[0430] As an embodiment, the third information block and the second information block belong to the same IE PDCCH-Config.

[0431] As an embodiment, the third information block and the second information block belong to two RRC IEs respectively.

[0432] As an embodiment, the third information block and the second information block are received simultaneously.

[0433] As an embodiment, the third information block and the second information block are received together.

[0434] As an embodiment, the third information block is received no later than the second information block is received.

[0435] As an embodiment, the third information block is received earlier than the second information block.

[0436] As an embodiment, the third information block is received later than the second information block.

[0437] As an embodiment, the third information block is received no earlier than the second information block is received.

[0438] As an embodiment, the first information block is received no later than the second information block is received.

[0439] As an embodiment, the first information block is received earlier than the second information block.

[0440] As an embodiment, the first information block is received later than the second information block.

[0441] As an embodiment, the first information block is received no earlier than the second information block is received.

[0442] As an embodiment, the first information block and the second information block belong to the same RRC signaling.

[0443] As an embodiment, the first information block and the second information block are received together.

[0444] As an embodiment, the first information block is transmitted in a PDSCH (Physical Downlink Shared Channel).

[0445] As an embodiment, the first information block is transmitted in a PDCCH (Physical Downlink Control Channel).

[0446] As an embodiment, the second information block is transmitted in PDSCH.

[0447] As an embodiment, the third information block is transmitted in PDSCH.

[0448] As an embodiment, the second information block and the third information block are transmitted in the same PDSCH.

[0449] As an embodiment, the second information block and the third information block are transmitted in different PDSCHs.

[0450] Examples 6A-6C

[0451] Embodiments 6A-6C respectively illustrate schematic diagrams in which the target search space set is a third search space set according to an embodiment of the present application; Figures 6A-6C shown.

[0452] In embodiment 6A, when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0453] In embodiment 6B, when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0454] In Embodiment 6C, when the PDCCH monitoring timing where the at least first PDCCH candidate in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0455] As an embodiment, the first time unit includes one PDCCH monitoring opportunity of the first search space set, one PDCCH monitoring opportunity of the second search space set, and one PDCCH monitoring opportunity of the third search space set.

[0456] As an embodiment, the first time unit is orthogonal to the reference time domain resource set, or the first time unit belongs to the reference time domain resource set; when the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set; when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0457] As an embodiment, the first time unit is orthogonal to the reference time domain resource set, or the first time unit is overlapping with the reference time domain resource set; when the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set; when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0458] As a sub-embodiment of the above embodiment, when some symbols in the first time unit belong to the reference time domain resource set, the target search space set is the third search space set.

[0459] As a sub-embodiment of the above embodiment, when some symbols in the first time unit belong to the reference time domain resource set, the target search space set is the second search space set.

[0460] As a sub-embodiment of the above embodiment, when the PDCCH monitoring opportunity of the second search space in the first time unit overlaps with the reference time domain resource set, the target search space set is the third search space set.

[0461] As a sub-embodiment of the above embodiment, when the PDCCH monitoring opportunity of the second search space in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0462] As a sub-embodiment of the above embodiment, when the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit overlaps with the reference time domain resource set, the target search space set is the third search space set.

[0463] As a sub-embodiment of the above embodiment, when the PDCCH monitoring timing of the at least first PDCCH candidate in the first search space set monitored in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0464] As an embodiment, the first time unit and the reference time domain resource set are orthogonal, or the first time unit and the reference time domain resource set overlap; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set; when the first time unit and the reference time domain resource set overlap, the target search space set is the third search space set.

[0465] As a sub-embodiment of the above embodiment, when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0466] As a sub-embodiment of the above embodiment, when the PDCCH monitoring opportunity of the second search space in the first time unit overlaps with the reference time domain resource set, the target search space set is the third search space set.

[0467] As a sub-embodiment of the above embodiment, when the PDCCH monitoring timing of the at least first PDCCH alternative in the first search space set monitored in the first time unit overlaps with the reference time domain resource set, the target search space set is the third search space set.

[0468] As a sub-embodiment of the above embodiment, when the PDCCH monitoring timing of the second search space in the first time unit overlaps with the reference time domain resource set and the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit overlaps with the reference time domain resource set, the target search space set is the third search space set.

[0469] As an embodiment, the first time unit and the reference time domain resource set are orthogonal, or the first time unit and the reference time domain resource set overlap; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set; when the first time unit and the reference time domain resource set overlap, the target search space set is the second search space set.

[0470] As a sub-embodiment of the above embodiment, when the first time unit and the reference time domain resource set overlap, and the PDCCH monitoring timing of the second search space in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0471] As a sub-embodiment of the above embodiment, when the first time unit and the reference time domain resource set overlap, and the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0472] As a sub-embodiment of the above embodiment, when the first time unit and the reference time domain resource set overlap, the PDCCH monitoring timing of the second search space in the first time unit is orthogonal to the reference time domain resource set and the PDCCH monitoring timing of the at least first PDCCH alternative in the first search space set monitored in the first time unit is orthogonal to the reference time domain resource set, the target search space set is the second search space set.

[0473] Example 7

[0474] Embodiment 7 illustrates a schematic diagram of a PDCCH candidate not being monitored for detecting a DCI format having the same information according to an embodiment of the present application; Figure 7 shown.

[0475] In Embodiment 7, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set and PDCCH candidates in the first search space set are not monitored for detecting DCI formats having the same information.

[0476] As an embodiment, in the first time unit, another search space set among the second search space set and the third search space set that is not the target search space set is the second search space set.

[0477] As an embodiment, in the first time unit, another search space set between the second search space set and the third search space set that is not the target search space set is the third search space set.

[0478] As an embodiment, in the first time unit, the target search space set is the third search space set, and the PDCCH candidates in the second search space set and the PDCCH candidates in the first search space set are not monitored for detecting DCI formats having the same information.

[0479] As an embodiment, in the first time unit, the target search space set is the second search space set, and the PDCCH candidates in the third search space set and the PDCCH candidates in the first search space set are not monitored for detecting DCI formats having the same information.

[0480] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored by the first node for detecting DCI formats with the same information.

[0481] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the monitoring of the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set is not used by the first node to detect DCI formats with the same information.

[0482] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the monitoring of the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set is not assumed by the first node to be used to detect DCI formats with the same information.

[0483] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the DCI format that the PDCCH alternatives in the second search space set are monitored for detecting and the DCI format that the PDCCH alternatives in the first search space set are monitored for detecting have different information.

[0484] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the first node assumes that the DCI format that the PDCCH alternatives in the second search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have different information.

[0485] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: one of the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set is not monitored by the first node.

[0486] As an embodiment, "PDCCH candidates in the second search space set and the PDCCH candidates in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH candidates in the second search space set are not monitored by the first node.

[0487] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: whether the DCI format that the PDCCH alternatives in the second search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have the same information is related to the sender of the first information block.

[0488] As an embodiment, "the PDCCH alternatives in the second search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: whether the DCI format that the PDCCH alternatives in the second search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have the same information is determined by the sender of the first information block.

[0489] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored by the first node for detecting DCI formats with the same information.

[0490] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the monitoring of the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set is not used by the first node to detect DCI formats with the same information.

[0491] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the monitoring of the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set is not assumed by the first node to be used to detect DCI formats with the same information.

[0492] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the DCI format that the PDCCH alternatives in the third search space set are monitored for detecting and the DCI format that the PDCCH alternatives in the first search space set are monitored for detecting have different information.

[0493] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are monitored by the first node, and the first node assumes that the DCI format that the PDCCH alternatives in the third search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have different information.

[0494] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: one of the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set is not monitored by the first node.

[0495] As an embodiment, "the PDCCH candidates in the third search space set and the PDCCH candidates in the first search space set are not monitored for detecting DCI formats with the same information" includes: the PDCCH candidates in the third search space set are not monitored by the first node.

[0496] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: whether the DCI format that the PDCCH alternatives in the third search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have the same information is related to the sender of the first information block.

[0497] As an embodiment, "the PDCCH alternatives in the third search space set and the PDCCH alternatives in the first search space set are not monitored for detecting DCI formats with the same information" includes: whether the DCI format that the PDCCH alternatives in the third search space set are monitored for detection and the DCI format that the PDCCH alternatives in the first search space set are monitored for detection have the same information is determined by the sender of the first information block.

[0498] Example 8

[0499] Embodiment 8 illustrates a schematic diagram of a PDCCH candidate being abandoned for monitoring according to an embodiment of the present application; Figure 8 shown.

[0500] In Embodiment 8, in the first time unit, monitoring of PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set is abandoned.

[0501] As an embodiment, in the first time unit, the target search space set is the third search space set, and PDCCH candidates in the second search space set are abandoned from monitoring.

[0502] As an embodiment, in the first time unit, the target search space set is the second search space set, and PDCCH candidates in the third search space set are abandoned from monitoring.

[0503] As an embodiment, "PDCCH candidates in the second search space set are abandoned from monitoring" includes: PDCCH candidates in the second search space set are abandoned from monitoring by the first node.

[0504] As an embodiment, "PDCCH candidates in the second search space set are abandoned from monitoring" includes: the first node does not monitor the PDCCH candidates in the second search space set.

[0505] As an embodiment, "PDCCH candidates in the second search space set are abandoned from monitoring" includes: the first node is not required to monitor the PDCCH candidates in the second search space set.

[0506] As an embodiment, "the monitoring of the PDCCH candidates in the second search space set is abandoned" includes: whether the monitoring of the PDCCH candidates in the second search space set is abandoned is related to the implementation of the first node.

[0507] As an embodiment, "the monitoring of the PDCCH candidates in the second search space set is abandoned" includes: whether the monitoring of the PDCCH candidates in the second search space set is abandoned is determined by the first node itself.

[0508] As an embodiment, "the monitoring of the PDCCH candidates in the third search space set is abandoned" includes: the monitoring of the PDCCH candidates in the third search space set is abandoned by the first node.

[0509] As an embodiment, "PDCCH candidates in the third search space set are abandoned from monitoring" includes: the first node does not monitor the PDCCH candidates in the third search space set.

[0510] As an embodiment, "PDCCH candidates in the third search space set are abandoned from monitoring" includes: the first node is not required to monitor the PDCCH candidates in the third search space set.

[0511] As an embodiment, "the monitoring of the PDCCH candidates in the third search space set is abandoned" includes: whether the monitoring of the PDCCH candidates in the third search space set is abandoned is related to the implementation of the first node.

[0512] As an embodiment, "the monitoring of the PDCCH candidates in the third search space set is abandoned" includes: whether the monitoring of the PDCCH candidates in the third search space set is abandoned is determined by the first node itself.

[0513] Example 9

[0514] Example 9 illustrates a schematic diagram of the first type of parameters according to an embodiment of the present application; Fig. 9 shown.

[0515] In Example 9, the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

[0516] As an embodiment, the first type of parameter is searchSpaceLinkingId.

[0517] As an embodiment, the name of the first type of parameters includes searchSpaceLinkingId.

[0518] As an embodiment, the name of the first type of parameters includes searchSpaceLinking.

[0519] As an embodiment, the specific definition of searchSpaceLinkingId refers to Chapter 10 of 3GPP TS38.213.

[0520] As an embodiment, the configuration information of the first search space set includes two first-category parameters, and the values ​​of the two first-category parameters are different.

[0521] As an embodiment, the configuration information of the first search space set includes two first-category parameters, and the values ​​of the two first-category parameters are the same.

[0522] As an embodiment, the first search space set is a search space set.

[0523] As an embodiment, the second search space set is a search space set.

[0524] As an embodiment, the third search space set is a search space set.

[0525] As an embodiment, the configuration information of a search space set includes at least one of the first-category parameters.

[0526] As an embodiment, the configuration information of a search space set includes one or two of the first-category parameters.

[0527] As an embodiment, the configuration information of a search space set includes two of the first-category parameters.

[0528] As an embodiment, the number of the first type of parameters included in the configuration information of one search space set is used to determine the number of search space sets connected to the one search space set.

[0529] As an embodiment, the number of the first type parameters included in the configuration information of one search space set is the same as the number of search space sets connected to the one search space set.

[0530] As an embodiment, the number of the first type of parameters included in the configuration information of a search space set is used to determine whether search space sets connected to the search space set in different time slots are the same.

[0531] As an embodiment, when the configuration information of a search space set includes only one first-category parameter, the search space sets respectively connected to the search space set in two different time slots are different.

[0532] As an embodiment, one of the two first-category parameters in the configuration information of the first search space set and one of the first-category parameters in the configuration information of the second search space set have the same value, and another first-category parameter of the two first-category parameters in the configuration information of the first search space set and one of the first-category parameters in the configuration information of the third search space set have the same value.

[0533] Example 10

[0534] Embodiment 10 illustrates a schematic diagram of a third information block according to an embodiment of the present application; Fig.10 shown.

[0535] In embodiment 10, the first receiver receives a third information block; wherein the third information block indicates configuration information of a first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate QCL information of a DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and QCL information of a DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0536] As an embodiment, the third information block also indicates configuration information of the second CORESET; the second CORESET is associated with the second search space set; the configuration information of the second CORESET includes at least one TCI state; a TCI state in the configuration information of the second CORESET indicates QCL information of the DMRS antenna port for PDCCH reception in the second CORESET outside the reference time domain resource set.

[0537] As an embodiment, the third information block also indicates configuration information of a third CORESET; the third CORESET is associated with the third search space set; the configuration information of the third CORESET includes at least one TCI state; a TCI state in the configuration information of the third CORESET indicates QCL information of the DMRS antenna port received in the third CORESET for PDCCH in the reference time domain resource set.

[0538] As an embodiment, the third information block is carried by higher layer signaling.

[0539] As an embodiment, the third information block is carried by RRC signaling.

[0540] As an embodiment, the third information block includes information in all or part of a field in an RRC IE.

[0541] As an embodiment, the third information block includes information in all or part of the fields in each RRC IE in multiple RRC IEs.

[0542] As an embodiment, the third information block includes information in all or part of the fields in the RRC IE whose name includes "ControlResourceSet".

[0543] As an embodiment, the third information block includes information in all or part of the fields in IE ControlResourceSet.

[0544] As an embodiment, the third information block includes information in all or part of the fields in each IEControlResourceSet in multiple IE ControlResourceSets.

[0545] As an embodiment, the third information block includes information in all or part of the fields in each of the three IE ControlResourceSets.

[0546] As an embodiment, the third information block includes a field in IE ControlResourceSete whose name includes "tci-StatesPDCCH".

[0547] As an embodiment, the third information block includes the tci-StatesPDCCH-ToAddList field in the IE ControlResourceSet.

[0548] As an embodiment, the third information block includes a field whose name includes "tci-StatesPDCCH" in each IEControlResourceSet in multiple IE ControlResourceSets.

[0549] As an embodiment, the third information block includes the tci-StatesPDCCH-ToAddList field in each IEControlResourceSet in multiple IE ControlResourceSets.

[0550] As an embodiment, the third information block includes a field whose name includes "tci-StatesPDCCH" in each of the three IE ControlResourceSets.

[0551] As an embodiment, the third information block includes the tci-StatesPDCCH-ToAddList field in each of the three IE ControlResourceSets.

[0552] As an embodiment, the third information block includes three IE ControlResourceSets, and the information in the tci-StatesPDCCH-ToAddList field in the first IE ControlResourceSet of the three IEControlResourceSets includes two TCI states included in the configuration information of the first CORESET; the information in the tci-StatesPDCCH-ToAddList field in the second IE ControlResourceSet of the three IE ControlResourceSets includes at least one TCI state included in the configuration information of the second CORESET; the information in the tci-StatesPDCCH-ToAddList field in the third IE ControlResourceSet of the three IE ControlResourceSets includes at least one TCI state included in the configuration information of the third CORESET.

[0553] As an embodiment, the third information block includes one or more RRC IEs.

[0554] As an embodiment, the third information block includes one or more IE ControlResourceSets.

[0555] As an embodiment, the third information block includes multiple IE ControlResourceSets.

[0556] As an embodiment, the third information block includes three IE ControlResourceSets.

[0557] As an embodiment, for the specific definition of the IE ControlResourceSet, tci-StatesPDCCH-ToAddList field, refer to Section 6.3.2 of 3GPP TS 38.331.

[0558] As an embodiment, the third information block indicates configuration information of the first CORESET.

[0559] As an embodiment, the third information block also indicates configuration information of the second CORESET and configuration information of the third CORESET.

[0560] As an embodiment, the third information block includes three RRC IEs, and the three RRC IEs respectively indicate the configuration information of the first CORESET, the configuration information of the second CORESET, and the configuration information of the third CORESET.

[0561] As an embodiment, the third information block includes three IE ControlResourceSets, and the three IE ControlResourceSets respectively indicate configuration information of the first CORESET, configuration information of the second CORESET, and configuration information of the third CORESET.

[0562] As an embodiment, the configuration information of a CORESET includes: CORESET index, DMRS scrambling sequence initialization value, frequency domain precoder granularity, the number of consecutive symbols of CORESET, frequency domain resources of CORESET, mapping parameters of CCE (Control Channel Element) to REG (Resource Element Group), QCL information of the DMRS antenna port received for PDCCH, and an indication of the presence or absence of a TCI field for the DCI format.

[0563] As an embodiment, the configuration information of the CORESET specifically refers to Section 10.1 of 3GPP TS 38.213.

[0564] As an embodiment, the controlResourceSetId field in the IE ControlResourceSet included in the third information block indicates a CORESET index.

[0565] As an embodiment, the pdcch-DMRS-ScramblingID field in the IE ControlResourceSet included in the third information block indicates a DMRS scrambling sequence initialization value.

[0566] As an embodiment, the precoderGranularity field in the IE ControlResourceSet included in the third information block indicates the frequency domain precoder granularity.

[0567] As an embodiment, the duration field in the IE ControlResourceSet included in the third information block indicates the number of consecutive symbols of CORESET.

[0568] As an embodiment, the frequencyDomainResources field in the IE ControlResourceSet included in the third information block indicates the frequency domain resources of CORESET.

[0569] As an embodiment, the cce-REG-MappingType field in the IE ControlResourceSet included in the third information block indicates mapping parameters from CCE to REG.

[0570] As an embodiment, the tci-StatesPDCCH-ToAddList field in the IE ControlResourceSet included in the third information block indicates the QCL information of the DMRS antenna port for PDCCH reception.

[0571] As an embodiment, the tci-PresentInDCI field or the tci-PresentDCI-1-2 field in the IE ControlResourceSet included in the third information block indicates the presence or absence of the TCI field used for the DCI format.

[0572] As an embodiment, the configuration information of the first CORESET includes part or all of the configuration information of the one CORESET.

[0573] As an embodiment, the configuration information of the first CORESET includes at least a CORESET index in the configuration information of the one CORESET.

[0574] As an embodiment, the configuration information of the first CORESET includes at least the CORESET index in the configuration information of the CORESET, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, and the frequency domain resources of the CORESET.

[0575] As an embodiment, the configuration information of the first CORESET includes at least QCL information of a DMRS antenna port for PDCCH reception in the configuration information of the one CORESET.

[0576] As an embodiment, the configuration information of the first CORESET includes at least a CORESET index in the configuration information of the one CORESET, and QCL information of a DMRS antenna port received for PDCCH.

[0577] As an embodiment, the configuration information of the first CORESET includes at least the CORESET index in the configuration information of the CORESET, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, the frequency domain resources of the CORESET, and the QCL information of the DMRS antenna port for PDCCH reception.

[0578] As an embodiment, the configuration information of the second CORESET includes part or all of the configuration information of the one CORESET.

[0579] As an embodiment, the configuration information of the second CORESET includes at least the CORESET index in the configuration information of the one CORESET.

[0580] As an embodiment, the configuration information of the second CORESET includes at least the CORESET index, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, and the frequency domain resources of the CORESET in the configuration information of the one CORESET.

[0581] As an embodiment, the configuration information of the second CORESET includes at least QCL information of the DMRS antenna port for PDCCH reception in the configuration information of the one CORESET.

[0582] As an embodiment, the configuration information of the second CORESET includes at least the CORESET index in the configuration information of the one CORESET, and QCL information of the DMRS antenna port received for PDCCH.

[0583] As an embodiment, the configuration information of the second CORESET includes at least the CORESET index in the configuration information of the one CORESET, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, the frequency domain resources of the CORESET, and the QCL information of the DMRS antenna port for PDCCH reception.

[0584] As an embodiment, the configuration information of the third CORESET includes part or all of the configuration information of the one CORESET.

[0585] As an embodiment, the configuration information of the third CORESET includes at least the CORESET index in the configuration information of the one CORESET.

[0586] As an embodiment, the configuration information of the third CORESET includes at least the CORESET index, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, and the frequency domain resources of the CORESET in the configuration information of the one CORESET.

[0587] As an embodiment, the configuration information of the third CORESET includes at least QCL information of the DMRS antenna port for PDCCH reception in the configuration information of the one CORESET.

[0588] As an embodiment, the configuration information of the third CORESET includes at least the CORESET index in the configuration information of the one CORESET, and QCL information of the DMRS antenna port received for PDCCH.

[0589] As an embodiment, the configuration information of the third CORESET includes at least the CORESET index in the configuration information of the one CORESET, the frequency domain precoder granularity, the number of consecutive symbols of the CORESET, the frequency domain resources of the CORESET, and the QCL information of the DMRS antenna port for PDCCH reception.

[0590] As an embodiment, "the first CORESET is associated with the first search space set" includes: the configuration information of the first search space set includes the index of the first CORESET.

[0591] As an embodiment, "the first CORESET is associated with the first search space set" includes: the first search space set is a search space set configured with an index of the first CORESET.

[0592] As an embodiment, "the first CORESET is associated with the first search space set" includes: the first CORESET is used to determine the time-frequency resources occupied by a PDCCH monitoring opportunity in the first search space set.

[0593] As an embodiment, “the first CORESET is associated with the first search space set” includes: the first CORESET includes time-frequency resources occupied by a PDCCH monitoring opportunity in the first search space set.

[0594] As an embodiment, "the first CORESET is associated with the first search space set" includes: the RE (Resource Element) occupied by the first CORESET includes the RE occupied by a PDCCH monitoring opportunity in the first search space set.

[0595] As an embodiment, "the first CORESET is associated with the first search space set" includes: the RBs occupied by the first CORESET in the frequency domain include the RBs occupied by a PDCCH monitoring opportunity in the first search space set.

[0596] As an embodiment, “the first CORESET is associated with the first search space set” includes: the frequency domain resources occupied by the first CORESET include the frequency domain resources occupied by a PDCCH monitoring opportunity in the first search space set.

[0597] As an embodiment, "the first CORESET is associated with the first search space set" includes: symbols occupied by the first CORESET are used to determine symbols occupied by a PDCCH monitoring opportunity in the first search space set.

[0598] As an embodiment, "the first CORESET is associated with the first search space set" includes: symbols occupied by the first CORESET include symbols occupied by a PDCCH monitoring opportunity in the first search space set.

[0599] As an embodiment, "the second CORESET is associated with the second search space set" includes: the configuration information of the second search space set includes the index of the second CORESET.

[0600] As an embodiment, "the second CORESET is associated with the second search space set" includes: the second search space set is a search space set configured with an index of the second CORESET.

[0601] As an embodiment, "the second CORESET is associated with the second search space set" includes: the second CORESET is used to determine the time-frequency resources occupied by a PDCCH monitoring opportunity in the second search space set.

[0602] As an embodiment, "the second CORESET is associated with the second search space set" includes: the second CORESET includes the time-frequency resources occupied by a PDCCH monitoring opportunity in the second search space set.

[0603] As an embodiment, "the second CORESET is associated with the second search space set" includes: the REs occupied by the second CORESET include the REs occupied by a PDCCH monitoring opportunity in the second search space set.

[0604] As an embodiment, "the second CORESET is associated with the second search space set" includes: the RBs occupied by the second CORESET in the frequency domain include the RBs occupied by a PDCCH monitoring opportunity in the second search space set.

[0605] As an embodiment, “the second CORESET is associated with the second search space set” includes: the frequency domain resources occupied by the second CORESET include the frequency domain resources occupied by a PDCCH monitoring opportunity in the second search space set.

[0606] As an embodiment, "the second CORESET is associated with the second search space set" includes: symbols occupied by the second CORESET are used to determine symbols occupied by a PDCCH monitoring opportunity in the second search space set.

[0607] As an embodiment, "the second CORESET is associated with the second search space set" includes: symbols occupied by the second CORESET include symbols occupied by a PDCCH monitoring opportunity in the second search space set.

[0608] As an embodiment, "the third CORESET is associated with the third search space set" includes: the configuration information of the third search space set includes the index of the third CORESET.

[0609] As an embodiment, "the third CORESET is associated with the third search space set" includes: the third search space set is a search space set configured with an index of the third CORESET.

[0610] As an embodiment, "the third CORESET is associated with the third search space set" includes: the third CORESET is used to determine the time-frequency resources occupied by a PDCCH monitoring opportunity in the third search space set.

[0611] As an embodiment, "the third CORESET is associated with the third search space set" includes: the third CORESET includes the time-frequency resources occupied by a PDCCH monitoring opportunity in the third search space set.

[0612] As an embodiment, "the third CORESET is associated with the third search space set" includes: the REs occupied by the third CORESET include the REs occupied by a PDCCH monitoring opportunity in the third search space set.

[0613] As an embodiment, "the third CORESET is associated with the third search space set" includes: the RBs occupied by the third CORESET in the frequency domain include the RBs occupied by a PDCCH monitoring opportunity in the third search space set.

[0614] As an embodiment, “the third CORESET is associated with the third search space set” includes: the frequency domain resources occupied by the third CORESET include the frequency domain resources occupied by a PDCCH monitoring opportunity in the third search space set.

[0615] As an embodiment, "the third CORESET is associated with the third search space set" includes: symbols occupied by the third CORESET are used to determine symbols occupied by a PDCCH monitoring opportunity in the third search space set.

[0616] As an embodiment, "the third CORESET is associated with the third search space set" includes: the symbols occupied by the third CORESET include the symbols occupied by a PDCCH monitoring opportunity in the third search space set.

[0617] As an embodiment, the specific definition of the RE refers to Chapter 4 of 3GPP TS 38.211.

[0618] As an embodiment, a TCI state includes parameters for configuring the QCL information between one or more CSI-RS ports of the DMRS of the PDSCH, the DMRS of the PDCCH or the CSI-RS (Channel State Information-Reference Signal) resources and one or two RS (Reference Signal), and provides a reference RS for determining the uplink transmit spatial filter (UL Tx spatial filter) of the PUSCH (Physical Uplink Shared Channel), PUCCH (Physical Uplink Control Channel) resources and SRS (Sounding Reference Signal).

[0619] As an embodiment, a TCI state includes parameters for configuring the DMRS of PDSCH, the DMRS of PDCCH or QCL information between one or more CSI-RS ports of CSI-RS resources and one or two RSs, or providing a reference RS for determining the uplink transmit spatial filter (UL Tx spatial filter) of PUSCH, PUCCH resources and SRS.

[0620] As an embodiment, “one TCI state indicates QCL information” means: the one TCI state indicates an RS resource that provides QCL information.

[0621] As a sub-embodiment of the above embodiment, the meaning of "the one TCI state indication provides an RS resource of QCL information" includes: the index of the RS resource of the one TCI state indication provides QCL information.

[0622] As a sub-embodiment of the above embodiment, the meaning of "the one TCI state indication provides an RS resource of QCL information" includes: the identifier of the RS resource that the one TCI state indication provides QCL information.

[0623] As an embodiment, "a TCI state indicating QCL information" means: the one TCI state indicating a service cell configured with RS resources providing QCL information.

[0624] As a sub-embodiment of the above embodiment, the meaning of "the one TCI state indication is configured with a service cell of RS resources providing QCL information" includes: the one TCI state indication is configured with an index of a service cell of RS resources providing QCL information.

[0625] As a sub-embodiment of the above embodiment, the meaning of "the one TCI state indication is configured with a service cell of RS resources providing QCL information" includes: the one TCI state indication is configured with an identifier of a service cell of RS resources providing QCL information.

[0626] As an embodiment, "one TCI state indicates QCL information" means: the BWP (BandWidth Part, bandwidth interval) where the RS resource providing the QCL information is located is indicated by the one TCI state.

[0627] As a sub-embodiment of the above embodiment, the meaning of "the one TCI status indication providing the BWP where the RS resource of the QCL information is located" includes: the identifier of the BWP where the one TCI status indication providing the RS resource of the QCL information is located.

[0628] As a sub-embodiment of the above embodiment, the meaning of "the one TCI state indication providing the BWP where the RS resource of the QCL information is located" includes: the one TCI state indication providing the index of the BWP where the RS resource of the QCL information is located.

[0629] As an embodiment, “a TCI state indicates QCL information” means: the TCI state indicates the QCL type (type).

[0630] As an embodiment, "a TCI state indicates QCL information" means: the one TCI state indicates at least the first two of the RS resources providing QCL information, the QCL type, the service cell configured with the RS resources providing QCL information, and the BWP where the RS resources providing QCL information are located.

[0631] As an embodiment, "a TCI state indicates QCL information" means: the first TCI state indicates the RS resources providing QCL information, the QCL type, the service cell configured with the RS resources providing QCL information, and the BWP where the RS resources providing QCL information are located.

[0632] As an embodiment, "the one TCI state indication provides an RS resource for QCL information" means: the one TCI state indication is an RS resource for providing QCL information for a DMRS antenna port received by PDCCH.

[0633] As an embodiment, "the one TCI state indication provides an RS resource for QCL information" refers to: the one TCI state indication is an RS resource that is quasi co-located with a DMRS antenna port for PDCCH reception.

[0634] As an embodiment, "the one TCI state indicates a QCL type" means: the one TCI state indicates a QCL type between an RS resource providing QCL information indicated by the one TCI state and a DMRS antenna port for PDCCH reception.

[0635] As an embodiment, "the one TCI state indicates a QCL type" means: the one TCI state indicates a QCL type corresponding to the RS resource providing QCL information indicated by the one TCI state.

[0636] As an embodiment, "the one TCI state indicates a QCL type" means: the one TCI state indicates the QCL type configured by the RS resource providing QCL information indicated by the one TCI state.

[0637] As an embodiment, the QCL types include: TypeA, TypeB, TypeC, and TypeD.

[0638] As an embodiment, the QCL type indicated by the TCI state is one of TypeA, TypeB, TypeC, and TypeD.

[0639] As an embodiment, the QCL type indicated by the TCI state is TypeA.

[0640] As an embodiment, the QCL type indicated by the TCI state is Type D.

[0641] As an embodiment, a QCL type includes at least one QCL parameter.

[0642] As an embodiment, the QCL type "Type A" includes the following QCL parameters: Doppler shift, Doppler spread, average delay, and delay spread.

[0643] As an embodiment, the QCL parameters included in the QCL type "Type B" include: Doppler frequency shift and Doppler spread.

[0644] As an embodiment, the QCL type "Type C" includes the following QCL parameters: Doppler frequency shift and average delay.

[0645] As an embodiment, the QCL parameters included in the QCL type "TypeD" include: spatial reception parameters (SpatialRx parameter).

[0646] As an embodiment, the meaning of “quasi co-located” includes: large-scale properties of a channel through which symbols on one antenna port are transmitted can be inferred from large-scale properties of a channel through which symbols on another antenna port are transmitted.

[0647] As an embodiment, the large-scale characteristics include one or more of delay spread, average delay, Doppler spread, Doppler frequency shift, spatial reception parameters, and average gain.

[0648] As an embodiment, the large-scale characteristics include one or more of delay spread, average delay, Doppler spread, Doppler frequency shift, and spatial reception parameters.

[0649] As an embodiment, the large-scale characteristics include delay spread, average delay, Doppler spread, Doppler frequency shift, and spatial reception parameters.

[0650] As an embodiment, the antenna port includes an RS port.

[0651] As an embodiment, the antenna port includes a DMRS port

[0652] As an embodiment, the antenna port includes a CSI-RS port.

[0653] As an embodiment, the antenna port includes an SRS port.

[0654] As an embodiment, the meaning of “quasi co-located” includes: having at least one same QCL parameter.

[0655] As an embodiment, the meaning of “quasi-co-located” includes: having the same QCL parameters.

[0656] As an embodiment, the meaning of “quasi-co-located” includes: having the same QCL parameters of Type D.

[0657] As an embodiment, the meaning of “quasi-co-location” includes: having the same spatial reception parameters.

[0658] As an embodiment, the configuration information of a CORESET includes at least one TCI state.

[0659] As an embodiment, the configuration information of a CORESET includes one or two TCI states.

[0660] As an embodiment, when the configuration information of a CORESET includes two TCI states, the two TCI states in the configuration information of the CORESET respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the CORESET outside the reference time domain resources, and the QCL information of the DMRS antenna port for PDCCH reception in the CORESET in the reference time domain resources.

[0661] As an embodiment, when the configuration information of a CORESET includes two TCI states, one TCI state of the two TCI states in the configuration information of the CORESET indicates the QCL information of the DMRS antenna port for PDCCH reception in the CORESET outside the reference time domain resource, and the other TCI state of the two TCI states in the configuration information of the CORESET indicates the QCL information of the DMRS antenna port for PDCCH reception in the CORESET in the reference time domain resource.

[0662] As an embodiment, the two TCI states included in the configuration information of the first CORESET are respectively a first TCI state and a second TCI state; the first TCI state and the second TCI state respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0663] As an embodiment, the first TCI state indicates that the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set is quasi-co-located with the first RS resource, and the second TCI state indicates that the DMRS antenna port for PDCCH reception in the first CORESET is quasi-co-located with the second RS resource in the reference time domain resource set.

[0664] As an embodiment, the at least one TCI state included in the configuration information of the second CORESET includes a third TCI state; the third TCI state indicates QCL information of the DMRS antenna port for PDCCH reception in the second CORESET outside the reference time domain resource set.

[0665] As an embodiment, the third TCI state indicates that a DMRS antenna port for PDCCH reception in the second CORESET outside the reference time domain resource set is quasi co-located with a third RS resource.

[0666] As an embodiment, the at least one TCI state included in the configuration information of the third CORESET includes a fourth TCI state; the fourth TCI state indicates QCL information of the DMRS antenna port received for PDCCH in the third CORESET in the reference time domain resource set.

[0667] As an embodiment, the fourth TCI state indicates that a DMRS antenna port for PDCCH reception in the third CORESET and a fourth RS resource in the reference time domain resource set are quasi co-located.

[0668] As an embodiment, the first TCI state is a TCI state.

[0669] As an embodiment, the second TCI state is a TCI state.

[0670] As an embodiment, the third TCI state is a TCI state.

[0671] As an embodiment, the fourth TCI state is a TCI state.

[0672] As an embodiment, the first TCI state indicates the first RS resource.

[0673] As an embodiment, the second TCI state indicates the second RS resource.

[0674] As an embodiment, the third TCI state indicates the third RS resource.

[0675] As an embodiment, the fourth TCI state indicates the fourth RS resource.

[0676] As an embodiment, the RS resource configured with a QCL type of "TypeD" indicated by the first TCI state is the first RS resource.

[0677] As an embodiment, the RS resource configured with a QCL type of "TypeD" indicated by the second TCI state is the second RS resource.

[0678] As an embodiment, the RS resource configured with a QCL type of "TypeD" indicated by the third TCI state is the third RS resource.

[0679] As an embodiment, the RS resource configured with a QCL type of "TypeD" indicated by the fourth TCI state is the fourth RS resource.

[0680] As an embodiment, the first RS resource is an RS resource providing QCL information.

[0681] As an embodiment, the second RS resource is an RS resource providing QCL information.

[0682] As an embodiment, the third RS resource is an RS resource providing QCL information.

[0683] As an embodiment, the fourth RS resource is an RS resource providing QCL information.

[0684] As an embodiment, the first RS resource is an RS resource that provides QCL information for a DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set.

[0685] As an embodiment, the second RS resource is an RS resource that provides QCL information for a DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0686] As an embodiment, the third RS resource is an RS resource that provides QCL information for a DMRS antenna port for PDCCH reception in the second CORESET outside the reference time domain resource set.

[0687] As an embodiment, the fourth RS resource is an RS resource that provides QCL information for a DMRS antenna port for PDCCH reception in the third CORESET in the reference time domain resource set.

[0688] As an embodiment, the first TCI state indicates the QCL type corresponding to the first RS resource.

[0689] As an embodiment, the second TCI state indicates the QCL type corresponding to the second RS resource.

[0690] As an embodiment, the third TCI state indicates the QCL type corresponding to the third RS resource.

[0691] As an embodiment, the fourth TCI state indicates the QCL type corresponding to the fourth RS resource.

[0692] As an embodiment, the first TCI state indicates that the QCL type corresponding to the first RS resource includes Type D.

[0693] As an embodiment, the second TCI state indicates that the QCL type corresponding to the second RS resource includes Type D.

[0694] As an embodiment, the third TCI state indicates that the QCL type corresponding to the third RS resource includes Type D.

[0695] As an embodiment, the fourth TCI state indicates that the QCL type corresponding to the fourth RS resource includes Type D.

[0696] As an embodiment, the first RS resource includes a downlink RS.

[0697] As an embodiment, the second RS resource includes a downlink RS.

[0698] As an embodiment, the third RS resource includes a downlink RS.

[0699] As an embodiment, the fourth RS resource includes a downlink RS.

[0700] As an embodiment, the first RS resource includes a CSI-RS resource.

[0701] As an embodiment, the second RS resource includes a CSI-RS resource.

[0702] As an embodiment, the third RS resource includes a CSI-RS resource.

[0703] As an embodiment, the fourth RS resource includes a CSI-RS resource.

[0704] As an embodiment, the first RS resource includes SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resources.

[0705] As an embodiment, the second RS resource includes SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resources.

[0706] As an embodiment, the third RS resource includes SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resources.

[0707] As an embodiment, the fourth RS resource includes SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block resources.

[0708] As an embodiment, the first RS resource is a CSI-RS resource or a SS / PBCH block resource.

[0709] As an embodiment, the second RS resource is a CSI-RS resource or a SS / PBCH block resource.

[0710] As an embodiment, the third RS resource is a CSI-RS resource or a SS / PBCH block resource.

[0711] As an embodiment, the fourth RS resource is a CSI-RS resource or a SS / PBCH block resource.

[0712] As an embodiment, the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate QCL information of the DMRS antenna port for PDCCH reception in the first CORESET on two types of symbols.

[0713] As an embodiment, only one of the two types of symbols is used for DL ​​(DownLink) transmission.

[0714] As an embodiment, only one type of symbols among the two types of symbols supports UL (UpLink) transmission.

[0715] As an embodiment, only one type of symbols among the two types of symbols supports DL transmission and UL transmission.

[0716] As an embodiment, one of the two types of symbols supports only DL transmission, and the other of the two types of symbols supports both DL transmission and UL transmission.

[0717] As an embodiment, both types of symbols are configured as DL by higher layer parameters; one type of symbols in the two types of symbols only supports DL transmission, and the other type of symbols in the two types of symbols supports DL transmission and UL transmission.

[0718] As an embodiment, any one of the two types of symbols is configured as DL or Flexible by a higher layer parameter.

[0719] As an embodiment, both types of symbols are configured as DL by higher layer parameters.

[0720] As an embodiment, any one of the two types of symbols is configured as DL or Flexible by a higher layer parameter; the two types of symbols are SBFD symbols and non-SBFD symbols, respectively.

[0721] As an embodiment, the two types of symbols are SBFD symbols and non-SBFD symbols.

[0722] As an embodiment, the two types of symbols support SBFD and non-SBFD respectively.

[0723] As an embodiment, the non-SBFD symbol is a DL symbol.

[0724] As an embodiment, the non-SBFD symbol is a DL symbol or a Flexible symbol.

[0725] As an embodiment, the types of the two types of symbols are respectively a first type and a type other than the first type.

[0726] As an embodiment, a type other than the first type includes DL or Flexible.

[0727] As an embodiment, a type other than the first type is DL or Flexible.

[0728] As an embodiment, the two types of symbols are different, and the types of the two types of symbols are respectively the first type and DL.

[0729] As an embodiment, the two types of symbols are different.

[0730] As an embodiment, the type of one of the two types of symbols is the first type, and the type of the other of the two types of symbols is DL.

[0731] As an embodiment, the type of one of the two types of symbols is the first type, and the type of the other of the two types of symbols is DL or Flexible.

[0732] As an embodiment, the first type of symbol is a SBFD symbol.

[0733] As an embodiment, both of the two types of symbols are configured as DL by higher layer parameters, the type of one of the two types of symbols is the first type, and the type of the other of the two types of symbols is DL.

[0734] As an embodiment, the two types of symbols are configured as DL or Flexible by higher layer parameters, the type of one of the two types of symbols is the first type, and the type of the other of the two types of symbols is DL or Flexible.

[0735] As an embodiment, the first type of symbol is configured as DL by a higher layer parameter, and one or more subcarriers in the first type of symbol are used for UL transmission.

[0736] As an embodiment, the first type of symbol is configured as DL by a higher layer parameter, and one or more RBs in the first type of symbol are used for UL transmission.

[0737] As an embodiment, the first type of symbols is configured as DL by a higher layer parameter, and the first type of symbols supports UL transmission.

[0738] As an embodiment, if a symbol is configured or indicated as the first type, the symbol is used in full-duplex / SBFD mode.

[0739] As an embodiment, if a symbol is configured or indicated as the first type, the symbol is used for both uplink and downlink.

[0740] As an embodiment, if a symbol is configured or indicated as the first type, the symbol is used for uplink on a part of RBs and is used for downlink on another part of RBs.

[0741] As a sub-embodiment of the above embodiment, the part of RBs and the other part of RBs belong to the same serving cell.

[0742] As a sub-embodiment of the above embodiment, the part of RBs and the other part of RBs belong to the same BWP.

[0743] As an embodiment, if a symbol is configured or indicated as a type different from the first type, the symbol is not used in full-duplex / SBFD mode.

[0744] As an embodiment, if a symbol is configured or indicated as a type different from the first type, the symbol is used only for uplink or only for downlink.

[0745] As an embodiment, the higher layer parameter is an RRC parameter.

[0746] As an embodiment, the higher layer parameters include tdd-UL-DL-ConfigurationCommon.

[0747] As an embodiment, the higher layer parameter includes tdd-UL-DL-ConfigurationDedicated.

[0748] As an embodiment, the higher layer parameters include tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated.

[0749] As an embodiment, the higher layer parameter includes at least one of tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.

[0750] As an embodiment, the specific definition of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated refers to Chapter 11 of 3GPP TS38.213.

[0751] As an embodiment, the configuration information of the first CORESET includes two TCI states; one TCI state of the two TCI states in the configuration information of the first CORESET indicates the QCL information of the DMRS antenna port received in the first CORESET for PDCCH on one of the two types of symbols, and the other TCI state of the two TCI states in the configuration information of the first CORESET indicates the QCL information of the DMRS antenna port received in the first CORESET for PDCCH on the other type of symbols of the two types of symbols.

[0752] As an embodiment, the configuration information of the first CORESET includes two TCI states; one TCI state of the two TCI states in the configuration information of the first CORESET indicates the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET on the first type of symbol, and the other TCI state of the two TCI states in the configuration information of the first CORESET indicates the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET on a symbol of a type other than the first type.

[0753] As an embodiment, the second TCI state indicates the QCL information of the DMRS antenna port received in the first CORESET for PDCCH on the first type of symbol, and the first TCI state indicates the QCL information of the DMRS antenna port received in the first CORESET for PDCCH on a symbol of a type other than the first type.

[0754] As an embodiment, the third TCI state indicates QCL information of a DMRS antenna port for PDCCH reception in the second CORESET on a symbol of a type other than the first type.

[0755] As an embodiment, the fourth TCI state indicates QCL information of a DMRS antenna port for PDCCH reception in the third CORESET on the first type of symbol.

[0756] As an embodiment, the benefits of the above method include: reducing interference in receiving PDCCH in different types of symbols.

[0757] Examples 11A-11B

[0758] Embodiments 11A-11B illustrate a schematic diagram of a reference time domain resource set and two types of symbols according to an embodiment of the present application; Figures 11A-11B shown.

[0759] In embodiment 11A, the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in one or more symbols in the reference time domain resource set configured as DL by the higher layer parameter are used for uplink transmission.

[0760] As an embodiment, the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as a DL symbol by a higher layer parameter, and one or more RBs in the one or more symbols in the reference time domain resource set configured as DL by the higher layer parameters are used for uplink transmission.

[0761] As an embodiment, any symbol in the reference time domain resource set is configured as DL by a higher layer parameter.

[0762] As an embodiment, any symbol in the reference time domain resource set is configured as DL or Flexible by a higher layer parameter.

[0763] As an embodiment, each symbol in the reference time domain resource set is configured as DL by a higher layer parameter.

[0764] As an embodiment, each symbol in the reference time domain resource set is configured as DL or Flexible by a higher layer parameter.

[0765] As an embodiment, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and at least one symbol in the reference time domain resource set is configured as Flexible by a higher layer parameter.

[0766] As an embodiment, the reference time domain resource set is configured for a serving cell.

[0767] As an embodiment, the reference time domain resource set is configured to at least one BWP (BandWidthPart, bandwidth interval).

[0768] As an embodiment, the reference time domain resource set is configured for a BWP.

[0769] As an embodiment, the reference time domain resource set is configured for a DL BWP.

[0770] As an embodiment, the reference time domain resource set is configured to the DLBWP where the first RS resource is located.

[0771] As an embodiment, the reference time domain resource set is configured for a pair of DL BWP and ULBWP.

[0772] As an embodiment, the higher layer parameters are carried by RRC signaling.

[0773] As an embodiment, the higher layer parameters include all or part of the fields in an RRC IE.

[0774] As an embodiment, the higher layer parameter includes all or part of the fields in each RRC IE in multiple RRC IEs.

[0775] As an embodiment, the higher layer parameters include all or part of the fields in the TDD-UL-DL-ConfigCommon IE.

[0776] As an embodiment, the higher layer parameters include all or part of the fields in the TDD-UL-DL-ConfigDedicated IE.

[0777] As an embodiment, the higher layer parameters include all or part of the fields in the ServingCellConfig IE.

[0778] As an embodiment, the higher layer parameters include all or part of the fields in the ServingCellConfigCommonSIB IE.

[0779] As an embodiment, the higher layer parameters include information in all or part of the fields in the ServingCellConfigCommon IE.

[0780] As an embodiment, the higher layer parameters are carried by at least one RRC IE.

[0781] As an embodiment, a name of an IE carrying the higher layer parameters includes TDD-UL-DL-Config.

[0782] As an embodiment, the name of an IE carrying the higher-layer parameters includes ServingCellConfig.

[0783] As an embodiment, the uplink transmission in one or more symbols of the reference time domain resource set configured as DL by the higher layer parameters includes at least one of PUSCH (Physical Uplink Shared Channel), PUCCH (Physical Uplink Control Channel), PRACH (Physical Random-Access Channel) or SRS (Sounding Reference Signal).

[0784] As an embodiment, the uplink transmission in one or more symbols of the reference time domain resource set configured as DL by the higher layer parameter includes PUSCH.

[0785] As an embodiment, the uplink transmission in one or more symbols of the reference time domain resource set configured as DL by the higher layer parameter includes PUCCH.

[0786] As an embodiment, the uplink transmission in one or more symbols of the reference time domain resource set configured as DL by the higher layer parameters includes PRACH.

[0787] As an embodiment, the uplink transmission in one or more symbols of the reference time domain resource set configured as DL by the higher layer parameter includes SRS.

[0788] As an embodiment, the first receiver receives a fourth information block; wherein the fourth information block is used to determine a reference frequency domain resource set; and the UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0789] As an embodiment, the fourth information block is carried by higher layer signaling.

[0790] As an embodiment, the fourth information block is carried by RRC signaling.

[0791] As an embodiment, the fourth information block includes part or all of the fields in one or more RRC IEs.

[0792] As an embodiment, the fourth information block includes partial fields in multiple RRC IEs.

[0793] As an embodiment, the fourth information block includes all or part of the fields in an RRC IE.

[0794] As an embodiment, the fourth information block includes a partial field in an RRC IE.

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

[0796] As an embodiment, the fourth information block is carried by physical layer signaling.

[0797] As an embodiment, the fourth information block is carried by DCI signaling.

[0798] As an embodiment, the fourth information block and the first information block are carried by the same RRC IE.

[0799] As an embodiment, the fourth information block and the first information block are respectively carried by two RRC IEs.

[0800] As an embodiment, the fourth information block and the first information block are received together.

[0801] As an embodiment, the reference frequency domain resource set includes part or all RBs of a DL BWP.

[0802] As an embodiment, the reference frequency domain resource set includes a partial RB of a DL BWP.

[0803] As an embodiment, the reference frequency domain resource set includes part or all RBs of a UL BWP.

[0804] As an embodiment, the reference frequency domain resource set includes a partial RB of a UL BWP.

[0805] As an embodiment, the reference frequency domain resource set includes a part or all of RBs of a UL BWP in a pair of DL BWP and UL BWP.

[0806] As an embodiment, the reference frequency domain resource set includes a part of RBs of a UL BWP in a pair of a DL BWP and a UL BWP.

[0807] As an embodiment, on a serving cell, UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0808] As an embodiment, on a BWP, UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0809] As an embodiment, on a DL BWP, UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0810] As an embodiment, on a UL BWP in a pair of DL BWP and UL BWP, UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0811] As an embodiment, on the serving cell where the fourth information block or the first information block is transmitted, the UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0812] As an embodiment, on the BWP where the fourth information block or the first information block is transmitted, the UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0813] As an embodiment, on the DL BWP where the fourth information block or the first information block is transmitted, the UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0814] As an embodiment, on the UL BWP in a pair of DL BWP and UL BWP to which the DL BWP where the fourth information block or the first information block is transmitted belongs, the UL transmission in one or more DL symbols of the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0815] As an embodiment, the reference time domain resource set is configured for a service cell, and the reference frequency domain resource set is configured for the one service cell; on the one service cell, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the reference frequency domain resource set in the frequency domain.

[0816] As an embodiment, the reference time domain resource set is configured for a service cell, and the reference frequency domain resource set is configured for the service cell; on a BWP of the service cell, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the frequency domain resources that overlap with the reference frequency domain resource set and the BWP of the service cell in the frequency domain.

[0817] As an embodiment, the reference time domain resource set is configured for a service cell, and the reference frequency domain resource set is configured for the service cell; on a UL BWP of the service cell, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the frequency domain resources that overlap with the reference frequency domain resource set and the UL BWP of the service cell in the frequency domain.

[0818] As an embodiment, "the reference time domain resource set is configured to a serving cell" includes: information indicating that the reference time domain resource set belongs to configuration information of a serving cell.

[0819] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: the reference time domain resource set is applied to all BWPs of a serving cell.

[0820] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: information indicating that the reference time domain resource set belongs to an IE ServingCellConfig used to configure a serving cell.

[0821] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: information indicating that the reference time domain resource set belongs to an IEServingCellConfigCommon used to configure a serving cell.

[0822] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: information indicating that the reference time domain resource set belongs to at least one of an IE ServingCellConfig or an IE ServingCellConfigCommon used to configure a serving cell.

[0823] As an embodiment, "the reference frequency domain resource set is configured for the one serving cell" includes: information indicating that the reference frequency domain resource set belongs to configuration information of the one serving cell.

[0824] As an embodiment, "the reference frequency domain resource set is configured for the one serving cell" includes: the reference frequency domain resource set is applied to all BWPs of the one serving cell.

[0825] As an embodiment, "the reference frequency domain resource set is configured for the one serving cell" includes: the reference frequency domain resource set and the BWP of the one serving cell are configured separately.

[0826] As an embodiment, "the reference frequency domain resource set is configured for the one serving cell" includes: information indicating that the reference frequency domain resource set belongs to an IEServingCellConfig used to configure the one serving cell.

[0827] As an embodiment, "the reference frequency domain resource set is configured for the one serving cell" includes: information indicating that the reference frequency domain resource set belongs to an IEServingCellConfigCommon used to configure the one serving cell.

[0828] As an embodiment, "the reference frequency domain resource set is configured to the one serving cell" includes: information indicating that the reference frequency domain resource set belongs to at least one of IEServingCellConfig or IE ServingCellConfigCommon used to configure the one serving cell.

[0829] As an embodiment, "the reference time domain resource set is configured for a service cell" includes: information indicating that the reference time domain resource set belongs to the configuration information of a service cell; "the reference frequency domain resource set is configured for the one service cell" includes: information indicating that the reference frequency domain resource set belongs to the configuration information of the one service cell.

[0830] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: information indicating that the reference time domain resource set belongs to an IE ServingCellConfig used to configure a serving cell; "the reference frequency domain resource set is configured for the serving cell" includes: information indicating that the reference frequency domain resource set belongs to an IE ServingCellConfig used to configure the serving cell.

[0831] As an embodiment, "the reference time domain resource set is configured for a serving cell" includes: information indicating that the reference time domain resource set belongs to an IEServingCellConfigCommon used to configure a serving cell; "the reference frequency domain resource set is configured for the one serving cell" includes: information indicating that the reference frequency domain resource set belongs to an IEServingCellConfigCommon used to configure the one serving cell.

[0832] As an embodiment, the reference time domain resource set is configured to at least one BWP, and the reference frequency domain resource set is configured to the at least one BWP; on any BWP of the at least one BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameters belongs to the reference frequency domain resource set in the frequency domain.

[0833] As an embodiment, the reference time domain resource set is configured to at least one BWP, and the reference frequency domain resource set is configured to the at least one BWP; the given BWP is any BWP among the at least one BWP, and on the given BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameters belongs to the frequency domain resources overlapping the reference frequency domain resource set and the given BWP in the frequency domain.

[0834] As an embodiment, the reference time domain resource set is configured to at least one BWP, and the reference frequency domain resource set is configured to the at least one BWP; on a UL BWP in the at least one BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameters belongs to the reference frequency domain resource set in the frequency domain.

[0835] As an embodiment, the reference time domain resource set is configured to at least one BWP, and the reference frequency domain resource set is configured to the at least one BWP; the given BWP is a UL BWP in the at least one BWP, and on the given BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the frequency domain resources that overlap the reference frequency domain resource set and the given BWP in the frequency domain.

[0836] As an embodiment, "the reference time domain resource set is configured to at least one BWP" includes: information indicating that the reference time domain resource set belongs to configuration information of the at least one BWP.

[0837] As an embodiment, "the reference time domain resource set is configured to at least one BWP" includes: the reference time domain resource set is applied to the at least one BWP.

[0838] As an embodiment, "the reference frequency domain resource set is configured to at least one BWP" includes: information indicating that the reference frequency domain resource set belongs to configuration information of the at least one BWP.

[0839] As an embodiment, "the reference frequency domain resource set is configured to at least one BWP" includes: the reference frequency domain resource set is applied to the at least one BWP.

[0840] As an embodiment, "the reference frequency domain resource set is configured to at least one BWP" includes: the reference frequency domain resource set belongs to the at least one BWP.

[0841] As an embodiment, "the reference frequency domain resource set is configured to at least one BWP" includes: the reference frequency domain resource set includes part or all of the frequency domain resources in each BWP in the at least one BWP.

[0842] As an embodiment, the reference time domain resource set is configured to a BWP, and the reference frequency domain resource set is configured to the one BWP; on the one BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the reference frequency domain resource set in the frequency domain.

[0843] As an embodiment, "the reference time domain resource set is configured to a BWP" includes: information indicating that the reference time domain resource set belongs to configuration information of a BWP.

[0844] As an embodiment, "the reference time domain resource set is configured to a BWP" includes: the reference time domain resource set is applied to a BWP.

[0845] As an embodiment, "the reference frequency domain resource set is configured to the one BWP" includes: information indicating that the reference frequency domain resource set belongs to configuration information of the one BWP.

[0846] As an embodiment, "the reference frequency domain resource set is configured to the one BWP" includes: the reference frequency domain resource set is applied to the one BWP.

[0847] As an embodiment, "the reference frequency domain resource set is configured for the one BWP" includes: the reference frequency domain resource set belongs to the one BWP.

[0848] As an embodiment, the reference time domain resource set is configured to a pair of DL BWP and ULBWP, and the reference frequency domain resource set is configured to the pair of DL BWP and UL BWP; on the UL BWP in the pair of DL BWP and ULBWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the reference frequency domain resource set in the frequency domain.

[0849] As an embodiment, "the reference time domain resource set is configured to a pair of DL BWP and ULBWP" includes: information indicating that the reference time domain resource set belongs to the configuration information of the DL BWP in the pair of DL BWP and UL BWP, or the configuration information of the UL BWP in the pair of DL BWP and UL BWP.

[0850] As an embodiment, “the reference time domain resource set is configured to a pair of DL BWP and UL BWP” includes: the reference time domain resource set is applied to the pair of DL BWP and UL BWP.

[0851] As an embodiment, "the reference frequency domain resource set is configured to the pair (a pair of) DL BWP and UL BWP" includes: information indicating that the reference frequency domain resource set belongs to the configuration information of the DL BWP in the pair (a pair of) DL BWP and ULBWP, or the configuration information of the UL BWP in the pair (a pair of) DL BWP and UL BWP.

[0852] As an embodiment, “the reference frequency domain resource set is configured to the pair of DL BWP and UL BWP” includes: the reference frequency domain resource set is applied to the pair of DL BWP and UL BWP.

[0853] As an embodiment, “the reference frequency domain resource set is configured to the pair of DL BWP and UL BWP” includes: the reference frequency domain resource set belongs to the DLBWP in the pair of DL BWP and UL BWP.

[0854] As an embodiment, the reference time domain resource set is configured to a DL BWP, and the reference frequency domain resource set is configured to the one DL BWP; the first UL BWP is the UL BWP in a pair of DL BWP and UL BWP to which the one DL BWP belongs; on the first UL BWP, the uplink transmission in at least one symbol of the reference time domain resource set that is configured as DL by the higher layer parameter belongs to the reference frequency domain resource set in the frequency domain.

[0855] As an embodiment, "the reference time domain resource set is configured to a DL BWP" includes: information indicating that the reference time domain resource set belongs to configuration information of the one DL BWP.

[0856] As an embodiment, "the reference time domain resource set is configured to one DL BWP" includes: the reference time domain resource set is applied to the one DL BWP.

[0857] As an embodiment, "the reference frequency domain resource set is configured to a DL BWP" includes: information indicating that the reference frequency domain resource set belongs to configuration information of the one DL BWP.

[0858] As an embodiment, "the reference frequency domain resource set is configured to one DL BWP" includes: the reference frequency domain resource set is applied to the one DL BWP.

[0859] As an embodiment, "the reference frequency domain resource set is configured for one DL BWP" includes: the reference frequency domain resource set belongs to the one DL BWP.

[0860] As an embodiment, the fourth information block is used by the first node to determine a reference frequency domain resource set.

[0861] As an embodiment, the fourth information block indicates the reference frequency domain resource set.

[0862] As an embodiment, "the fourth information block indicates the reference frequency domain resource set" means: the fourth information block explicitly indicates the reference frequency domain resource set.

[0863] As an embodiment, "the fourth information block indicates the reference frequency domain resource set" means: the fourth information block implicitly indicates the reference frequency domain resource set.

[0864] As an embodiment, the fourth information block indicates a reference frequency domain resource pool, and the reference frequency domain resource set belongs to the reference frequency domain resource pool.

[0865] As an embodiment, the fourth information block indicates the reference frequency domain resource pool, and the reference frequency domain resource set includes at least one RB in the reference frequency domain resource pool that overlaps with a DL BWP.

[0866] As an embodiment, the fourth information block indicates the reference frequency domain resource pool, and the reference frequency domain resource set includes all RBs in the reference frequency domain resource pool that overlap with a DL BWP.

[0867] As an embodiment, the fourth information block indicates the reference frequency domain resource pool, and the reference frequency domain resource set includes at least one RB in the reference frequency domain resource pool that overlaps with the DLBWP where the fourth information block or the first information block is transmitted.

[0868] As an embodiment, the fourth information block indicates the reference frequency domain resource pool, and the reference frequency domain resource set includes all RBs in the reference frequency domain resource pool that overlap with the DLBWP where the fourth information block or the first information block is transmitted.

[0869] As an embodiment, the reference frequency domain resource pool includes one or more RBs.

[0870] As an embodiment, the reference frequency domain resource pool includes multiple consecutive RBs.

[0871] In embodiment 11B, both types of symbols are configured as DL by higher layer parameters, and the reference time domain resource set includes only one type of symbols of the two types.

[0872] As an embodiment, the reference time domain resource set includes only the first type of symbols among the two types of symbols.

[0873] As an embodiment, the reference time domain resource set includes one or more symbols of the first type, and one or more subcarriers in the one or more symbols of the first type in the reference time domain resource set are used for uplink transmission.

[0874] As an embodiment, the reference time domain resource set includes one or more symbols of the first type, and one or more RBs in the one or more symbols of the first type in the reference time domain resource set are used for uplink transmission.

[0875] As an embodiment, the reference time domain resource set includes one or more symbols of the first type, and the uplink transmission in the one or more symbols of the first type in the reference time domain resource set belongs to the reference frequency domain resource set in the frequency domain.

[0876] Example 12

[0877] Embodiment 12 illustrates a structural block diagram of a processing device used in a first node device according to an embodiment of the present application; Fig.12 As shown in the attached Fig.12 In the embodiment, the processing device 1200 in the first node device includes a first receiver 1201.

[0878] As an embodiment, the first node device is a user equipment.

[0879] As an embodiment, the first node device is a relay node device.

[0880] As an embodiment, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0881] A first receiver 1201 receives a second information block, where the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set;

[0882] The first receiver 1201 receives a first information block, where the first information block is used to determine a reference time domain resource set;

[0883] The first receiver 1201 monitors at least a first PDCCH candidate in the first search space set and at least a target PDCCH candidate in a target search space set in a first time unit;

[0884] In embodiment 12, the first PDCCH alternative and the target PDCCH alternative are monitored to detect a DCI format having the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0885] As an embodiment, when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0886] As an embodiment, when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0887] As an embodiment, when the PDCCH monitoring timing where the at least first PDCCH candidate in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0888] As an embodiment, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set and PDCCH candidates in the first search space set are not monitored for detecting DCI formats with the same information.

[0889] As an embodiment, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set are abandoned from monitoring.

[0890] As an embodiment, the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

[0891] As an embodiment, it includes:

[0892] The first receiver 1201 receives a third information block;

[0893] Among them, the third information block indicates the configuration information of the first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0894] As an embodiment, the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in the one or more symbols in the reference time domain resource set that are configured as DL by the higher layer parameter are used for uplink transmission.

[0895] As an embodiment, both types of symbols are configured as DL by higher layer parameters, and the reference time domain resource set includes only one type of symbols of the two types of symbols.

[0896] Embodiment 13

[0897] Embodiment 13 illustrates a structural block diagram of a processing device used in a second node device according to an embodiment of the present application; Fig.13 As shown in the attached Fig.13 In the embodiment, the processing device 1300 in the second node device includes a second transmitter 1301.

[0898] As an embodiment, the second node device is a base station device.

[0899] As an embodiment, the second node device is a user equipment.

[0900] As an embodiment, the second node device is a relay node device.

[0901] As an embodiment, the second transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0902] The second transmitter 1301 sends a second information block, where the second information block is used to determine that the first search space set is connected with the second search space set and the third search space set;

[0903] The second transmitter 1301 sends a first information block, where the first information block is used to determine a reference time domain resource set;

[0904] In embodiment 13, the first PDCCH alternative and the target PDCCH alternative are monitored to detect a DCI format having the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

[0905] As an embodiment, when the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0906] As an embodiment, when the PDCCH monitoring opportunity of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

[0907] As an embodiment, when the PDCCH monitoring timing where the at least first PDCCH candidate in the first search space set monitored in the first time unit is located belongs to the reference time domain resource set, the target search space set is the third search space set.

[0908] As an embodiment, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set and PDCCH candidates in the first search space set are not monitored for detecting DCI formats with the same information.

[0909] As an embodiment, in the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set are abandoned from monitoring.

[0910] As an embodiment, the second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

[0911] As an embodiment, it includes:

[0912] The second transmitter 1301 sends a third information block;

[0913] Among them, the third information block indicates the configuration information of the first CORESET; the first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

[0914] As an embodiment, the reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in the one or more symbols in the reference time domain resource set that are configured as DL by the higher layer parameter are used for uplink transmission.

[0915] As an embodiment, both types of symbols are configured as DL by higher layer parameters, and the reference time domain resource set includes only one type of symbols of the two types of symbols.

[0916] 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 user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), GNSS, relay satellites, satellite base stations, aerial base stations, RSU (Road Side Unit), drones, test equipment (such as a transceiver or signaling tester that simulates some functions of a base station), and other wireless communication equipment.

[0917] The above is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any changes and modifications made based on the embodiments described in the specification, if similar partial or complete technical effects can be obtained, should be considered obvious and fall within the scope of protection of the present invention.

Claims

1. A first node device used for wireless communication, characterized in that: include: A first receiver receives a second information block, where the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; The first receiver receives a first information block, where the first information block is used to determine a reference time domain resource set; The first receiver monitors at least a first PDCCH candidate in the first search space set and at least a target PDCCH candidate in a target search space set in a first time unit; Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

2. The first node device according to claim 1, characterized in that: When the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set; or, when the PDCCH monitoring timing of the second search space set in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set; or, when the PDCCH monitoring timing of at least the first PDCCH alternative in the first search space set monitored in the first time unit belongs to the reference time domain resource set, the target search space set is the third search space set.

3. The first node device according to claim 1 or 2, characterized in that: In the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set and PDCCH candidates in the first search space set are not monitored for detecting a DCI format having the same information.

4. The first node device according to any one of claims 1 to 3, characterized in that: In the first time unit, PDCCH candidates in another search space set in the second search space set and the third search space set that is not the target search space set are abandoned from monitoring.

5. The first node device according to any one of claims 1 to 4, characterized in that: The second information block includes configuration information of the first search space set, configuration information of the second search space set and configuration information of the third search space set; the configuration information of the first search space set includes two first-category parameters, the configuration information of the second search space set includes at least one first-category parameter, and the configuration information of the third search space set includes at least one first-category parameter, and the two first-category parameters in the configuration information of the first search space set have the same values ​​as one first-category parameter in the configuration information of the second search space set and one first-category parameter in the configuration information of the third search space set, respectively.

6. The first node device according to any one of claims 1 to 5, characterized in that: include: The first receiver receives a third information block; Wherein, the third information block indicates configuration information of the first CORESET; The first CORESET is associated with the first search space set, and the configuration information of the first CORESET includes two TCI states; the two TCI states in the configuration information of the first CORESET respectively indicate the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET outside the reference time domain resource set, and the QCL information of the DMRS antenna port for PDCCH reception in the first CORESET in the reference time domain resource set.

7. The first node device according to any one of claims 1 to 6, characterized in that: The reference time domain resource set includes one or more symbols, at least one symbol in the reference time domain resource set is configured as DL by a higher layer parameter, and one or more subcarriers in the one or more symbols in the reference time domain resource set that are configured as DL by the higher layer parameter are used for uplink transmission; Alternatively, both types of symbols are configured as DL by higher layer parameters, and the reference time domain resource set includes only one type of symbols among the two types of symbols.

8. A second node device used for wireless communication, characterized in that: include: A second transmitter sends a second information block, where the second information block is used to determine that the first search space set is connected with the second search space set and the third search space set; The second transmitter sends a first information block, where the first information block is used to determine a reference time domain resource set; Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

9. A method in a first node for wireless communication, characterized in that: include: receiving a second information block, wherein the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; receiving a first information block, wherein the first information block is used to determine a reference time domain resource set; monitoring at least a first PDCCH candidate in the first search space set and at least a target PDCCH candidate in a target search space set in a first time unit; Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

10. A method in a second node for wireless communication, characterized in that: include: Sending a second information block, where the second information block is used to determine that the first search space set is connected to the second search space set and the third search space set; Sending a first information block, where the first information block is used to determine a reference time domain resource set; Among them, the first PDCCH alternative and the target PDCCH alternative are monitored to detect DCI formats with the same information; the target search space set is one of the second search space set or the third search space set, and whether the target search space set is the second search space set or the third search space set depends on whether the first time unit and the reference time domain resource set are orthogonal; when the first time unit and the reference time domain resource set are orthogonal, the target search space set is the second search space set.

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