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. A first node receives a first information block set, the first information block set is used for configuring a plurality of CORESETs, and the plurality of CORESETs are configured to N cells; determining a first CORESET from the plurality of CORESETs, and determining a second CORESET from the first CORESET; the PDCCH is monitored in a target CORESET group in the plurality of CORESETs in a first time window, the first time window is composed of a plurality of overlapped PDCCH monitoring opportunities, and the plurality of overlapped PDCCH monitoring opportunities respectively comprise time domain resources which are alternatively occupied by the PDCCH in the plurality of CORESETs; the target CORESET group comprises each CORESET, which has the same QCL characteristic as the first CORESET, in the plurality of CORESETs, and the target CORESET group comprises each CORESET, which has the same QCL characteristic as the first CORESET; each cell in the N cells comprises at least one of two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one cell of the N cells comprises a first type of symbols in the first time window. According to the method, the proper CORESET used for monitoring the PDCCH is determined.

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 scheme and device in a wireless communication system. Background Art

[0002] In the existing NR (New Radio) system, spectrum resources are statically divided into FDD (Frequency Division Duplexing) spectrum and TDD (Time Division Duplexing) spectrum. For TDD spectrum, both base stations and user equipment work 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 on TDD spectrum or FDD spectrum has become a possible solution. The 3GPP RAN (Radio Access Network) 1#103e meeting agreed to research on duplex technology, among which SubBand non-overlapping Full Duplex (SBFD) was proposed, which supports base station equipment to send and receive simultaneously on two sub-bands. Communications in this mode will be severely interfered, including self-interference and cross-link interference. Summary of the invention

[0003] The inventors have found through research that when multiple CORESETs (CONtrol REsource SETs) are configured for multiple cells, how to determine in which CORESETs to monitor PDCCH in multiple overlapping PDCCH (Physical Downlink Control CHannel) monitoring opportunities 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, the flexible duplex mode is only used as a typical application scenario or example; the present application can also be applied to other scenarios facing similar problems (including but not limited to SBFD, other flexible duplex modes or full-duplex modes, variable link direction modes, traditional duplex modes, half-duplex modes, energy-saving scenarios, non-energy-saving scenarios, capacity enhancement systems, systems for short-range communication, unlicensed frequency domain communication, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, Internet of Vehicles, etc.), and similar technical effects can also be achieved. In addition, adopting a unified design scheme for different scenarios also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0005] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0006] As an example, the interpretation of the terms in the present application refers to the definitions 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 first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0009] Determining a first CORESET from the plurality of CORESETs;

[0010] Monitoring PDCCH in only a target CORESET group among the multiple CORESETs in a first time window, the first time window consisting of a plurality of overlapping PDCCH monitoring opportunities, the plurality of overlapping PDCCH monitoring opportunities respectively including time domain resources occupied by PDCCH candidates in the multiple CORESETs;

[0011] Among them, the target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

[0012] As an embodiment, the problem to be solved by the present application includes: when multiple CORESETs are configured for multiple cells, how to determine in which CORESETs among multiple overlapping PDCCH monitoring opportunities to monitor the PDCCH.

[0013] As an embodiment, the advantage of adopting the above method is that the monitoring of the PDCCH in multiple overlapping PDCCH monitoring opportunities is flexibly adjusted.

[0014] As an embodiment, the advantage of adopting the above method is that it is applicable to different application scenarios / environments / modes and improves the flexibility of the system.

[0015] As an embodiment, the advantages of adopting the above method are: supporting flexible duplex mode, improving uplink coverage, and increasing uplink transmission capacity.

[0016] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0017] As an embodiment, the characteristics of the above method include: selecting a suitable CORESET through the first type of symbols, and monitoring the PDCCH in the selected CORESET in a first time window.

[0018] According to one aspect of the present application, it is characterized in that when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

[0019] As an embodiment, the benefits of adopting the above method include: good backward compatibility and simplified system design.

[0020] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0021] As an embodiment, the benefits of the above method include: monitoring PDCCH in the CSS set or USS set of the cell including the first type of symbols in the first time window, supporting flexible duplex mode, and improving uplink transmission capacity and system stability.

[0022] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with a minimum index in the cell including the minimum index of the CSS set, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0023] As an embodiment, the characteristics of the above method include: monitoring PDCCH in the CSS set of the N cells, and monitoring PDCCH in the USS set of cells among the N cells that only include the first type of symbols in the first time window.

[0024] According to one aspect of the present application, it is characterized by comprising:

[0025] Determine the second CORESET;

[0026] The second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; and the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0027] As an embodiment, the benefits of the above method include: supporting the monitoring of multiple CORESETs with different QCL characteristics in multiple overlapping PDCCH monitoring opportunities, thereby improving the flexibility of the system and the reliability of transmission.

[0028] 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; uplink transmission is supported on one or more resource blocks (Resource Block, RB) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0029] As an embodiment, the above method is characterized in that it is applicable to different application scenarios / environments / modes, ensures the reliability of transmission, and improves the capacity of uplink transmission.

[0030] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0031] Sending a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0032] Among them, the receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group among the multiple CORESETs in a first time window; the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH alternatives in the multiple CORESETs; the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0033] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0034] According to one aspect of the present application, it is characterized in that when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

[0035] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0036] According to one aspect of the present application, it is characterized in that when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with a minimum index in the cell including the minimum index of the CSS set, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0037] According to one aspect of the present application, it is characterized in that the receiver of the first information block set determines a second CORESET; the second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0038] 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; uplink transmission is supported on one or more resource blocks (Resource Block, RB) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0039] The present application discloses a first node device used for wireless communication, characterized in that it includes:

[0040] A first receiver receives a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0041] A first processor determines a first CORESET from the plurality of CORESETs;

[0042] The first receiver monitors the PDCCH in only the target CORESET group among the multiple CORESETs in a first time window, the first time window consisting of a plurality of overlapping PDCCH monitoring opportunities, the plurality of overlapping PDCCH monitoring opportunities respectively including time domain resources occupied by the PDCCH candidates in the multiple CORESETs;

[0043] Among them, the target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

[0044] The present application discloses a second node device used for wireless communication, characterized in that it includes:

[0045] A second transmitter sends a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0046] Among them, the receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group among the multiple CORESETs in a first time window; the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH alternatives in the multiple CORESETs; the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0047] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0048] - Determine the appropriate CORESET for monitoring PDCCH;

[0049] -Flexible adjustment of PDCCH monitoring in multiple overlapping PDCCH monitoring opportunities;

[0050] - Suitable for different application scenarios / environments / modes, improving the flexibility of the system;

[0051] -Supports flexible duplex mode and improves uplink coverage;

[0052] -Improved the reliability of communication transmission;

[0053] -Ensures the quality of service of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] 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:

[0055] Figure 1 A flowchart showing a first information block set, a first CORESET and a target CORESET group according to an embodiment of the present application is shown;

[0056] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0057] 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;

[0058] 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;

[0059] Figure 5 A flowchart of wireless transmission according to an embodiment of the present application is shown;

[0060] Figure 6 A schematic diagram showing determination of a first CORESET according to an embodiment of the present application is shown;

[0061] Figure 7 A schematic diagram showing the relationship between a first CORESET, a first CSS set and a first USS set according to an embodiment of the present application;

[0062] Figure 8 A schematic diagram showing the relationship between a first CORESET, a second CSS set and a second USS set according to an embodiment of the present application;

[0063] Fig. 9A schematic diagram showing the relationship between a first CORESET, a first CSS set and a second USS set according to an embodiment of the present application;

[0064] Fig.10 A schematic diagram of a second CORESET according to an embodiment of the present application is shown;

[0065] Fig.11 A schematic diagram showing two types of symbols according to an embodiment of the present application is shown;

[0066] 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;

[0067] 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

[0068] 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, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0069] Example 1

[0070] Embodiment 1 illustrates a flowchart of a first information block set, a first CORESET and a target CORESET group according to an embodiment of the present application, as shown in the attached figure. Figure 1 Attached Figure 1 In the diagram 100, each box represents a step.

[0071] In Embodiment 1, the first node in the present application receives a first information block set in step 101, the first information block set is used to configure multiple CORESETs, the multiple CORESETs are configured to N cells, N is a positive integer greater than 1; in step 102, a first CORESET is determined from the multiple CORESETs; in step 103, PDCCH is monitored in only a target CORESET group among the multiple CORESETs in a first time window, the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs; wherein the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0072] As an embodiment, the first information block set is carried by higher layer signaling.

[0073] As an embodiment, the first information block set is carried by RRC signaling.

[0074] As an embodiment, the first information block set includes part or all of the fields in an RRC IE.

[0075] As an embodiment, the first information block set includes multiple RRC IEs.

[0076] As an embodiment, the first information block set includes multiple RRC IE ControlResourceSets, and the multiple RRC IE ControlResourceSets are respectively used to configure multiple CORESETs of the N cells.

[0077] As an embodiment, the first information block set includes part or all of the fields in one or more than one RRC IE PDCCH-Config.

[0078] As an embodiment, the first information block set includes one or more domains in RRC IE PDCCH-Config whose name includes controlResourceSetToAddModList.

[0079] As an embodiment, the first information block set includes one or more than one domain whose name includes controlResourceSetToAddModList and a domain whose name includes controlResourceSetToReleaseList in RRC IE PDCCH-Config.

[0080] As an embodiment, the N cells include only one cell.

[0081] As an embodiment, the N cells include more than one cell.

[0082] As an embodiment, the N cells include only one cell, and the multiple CORESETs are all configured for the only one cell.

[0083] As an embodiment, the N cells include more than one cell, any CORESET of the multiple CORESETs is configured to one cell of the N cells, and any cell of the N cells is configured with at least one CORESET of the multiple CORESETs.

[0084] As an embodiment, a CORESET (Control Resource Set) includes multiple REs (Resource Elements).

[0085] Typically, a resource element occupies a subcarrier in the frequency domain and a symbol in the time domain.

[0086] As an embodiment, the symbol is a single carrier symbol.

[0087] As an embodiment, the symbol is a multi-carrier symbol.

[0088] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0089] As an embodiment, the symbol is obtained by performing OFDM symbol generation on the output of a transform precoding.

[0090] As an embodiment, the symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0091] As an embodiment, the symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0092] As an embodiment, the multi-carrier symbol is a FBMC (Filter Bank Multi Carrier) symbol.

[0093] As an embodiment, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0094] As an embodiment, a CORESET (Control Resource Set, CORESET) includes at least one CCE (Control Channel Element, control channel element).

[0095] As an embodiment, one CCE includes 9 REGs (Resource Element Groups), and one REG includes 4 REs.

[0096] As an embodiment, one CCE includes 6 REGs, and one REG includes 12 REs.

[0097] As an embodiment, a CORESET is configured by RRC IE (Information Element) ControlResourceSet.

[0098] As an embodiment, the specific definition of CORESET refers to Chapter 10 of 3GPP TS 38.213.

[0099] As an embodiment, the specific definition of RRC IE ControlResourceSet refers to Section 6.3.2 of 3GPPTS 38.331.

[0100] As an embodiment, a CORESET corresponds to at least one SS (Search Space) set.

[0101] As an embodiment, any CORESET among the multiple CORESETs corresponds to one or more SS sets.

[0102] As an embodiment, any CORESET among the multiple CORESETs corresponds to only one SS set.

[0103] As an embodiment, a SS set corresponding to a CORESET is a USS set or a CSS set.

[0104] As an embodiment, CSS refers to Common Search Space.

[0105] As an embodiment, USS refers to: UE-specific Search Space, a search space dedicated to user equipment.

[0106] As an embodiment, a PDCCH (Physical Downlink Control CHannel) candidate in a CORESET belongs to the CORESET in the frequency domain.

[0107] As an embodiment, a PDCCH candidate in a CORESET is a PDCCH candidate in a SS set corresponding to the CORESET.

[0108] As an embodiment, a PDCCH candidate in a CORESET consists of at least one CCE in the CORESET.

[0109] As an embodiment, any PDCCH candidate in the SS set corresponding to a CORESET is composed of at least one CCE of the CORESET.

[0110] As an embodiment, a PDCCH candidate in a SS set corresponding to a CORESET belongs to the CORESET.

[0111] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means that a set of SSs corresponding to a CORESET is associated with the CORESET.

[0112] As an embodiment, the meaning of "an SS set is associated with a CORESET" includes: the configuration information of the SS set includes the index of the CORESET.

[0113] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means that a CORESET is used to determine the time-frequency resources occupied by the set of SSs corresponding to the CORESET in a PDCCH monitoring occasion (Monitoring Occasion).

[0114] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means: a CORESET includes time-frequency resources occupied by the set of SSs corresponding to the CORESET in a PDCCH monitoring occasion (Monitoring Occasion).

[0115] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means that REs occupied by a CORESET include REs occupied by the set of SSs corresponding to the CORESET in a PDCCH monitoring occasion (Monitoring Occasion).

[0116] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means: RB(s) occupied by a CORESET in the frequency domain includes RB(s) occupied by a set of SSs corresponding to a CORESET in the frequency domain.

[0117] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means: frequency domain resources occupied by a CORESET include frequency domain resources occupied by the set of SSs corresponding to the CORESET.

[0118] As an embodiment, the phrase "a SS set corresponding to a CORESET" means that a symbol (symbol(s)) occupied by a CORESET is used to determine a symbol (symbol(s)) occupied by the SS set corresponding to the CORESET in a PDCCH monitoring opportunity.

[0119] As an embodiment, the phrase "a SS set corresponding to a CORESET" means: symbols (symbol(s)) occupied by a CORESET include symbols (symbol(s)) occupied by the SS set corresponding to the CORESET in a PDCCH monitoring opportunity.

[0120] As an embodiment, the symbol (symbol(s)) occupied by a PDCCH monitoring opportunity in a CORESET belongs to the symbols occupied by the CORESET.

[0121] As an embodiment, the symbols (symbol(s)) occupied by a PDCCH monitoring opportunity in a CORESET include the symbols occupied by the CORESET.

[0122] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means that the configuration information of a set of SSs corresponding to a CORESET includes the index of the CORESET.

[0123] As an embodiment, the phrase "a set of SSs corresponding to a CORESET" means: a set of SSs corresponding to a CORESET is a set of SSs configured with an index of the CORESET.

[0124] As an embodiment, a PDCCH monitoring occasion (Monitoring Occasion) includes a time period.

[0125] As an embodiment, a PDCCH monitoring occasion (Monitoring Occasion) includes one or more symbols.

[0126] As an embodiment, a PDCCH monitoring occasion (Monitoring Occasion) includes a time slot (slot).

[0127] As an embodiment, a PDCCH monitoring occasion (Monitoring Occasion) includes a sub-slot (sub-slot).

[0128] As an embodiment, a PDCCH monitoring occasion (Monitoring Occasion) includes a subframe (subframe).

[0129] As an embodiment, the first time window includes two overlapping PDCCH monitoring opportunities.

[0130] As an embodiment, the first time window includes more than two overlapping PDCCH monitoring opportunities.

[0131] As an embodiment, the first time window includes multiple overlapping PDCCH monitoring opportunities.

[0132] As an embodiment, the first time window includes a time period.

[0133] As an embodiment, the first time window includes one or more symbols.

[0134] As an embodiment, the first time window includes a time slot.

[0135] As an embodiment, the first time window includes a sub-slot.

[0136] As an embodiment, the first time window includes a subframe.

[0137] As an embodiment, the cell in the present application includes a service cell.

[0138] As an embodiment, the cell in the present application includes a physical cell.

[0139] As an embodiment, the cell in the present application includes a CC (Component Carrier).

[0140] As an embodiment, the cell in the present application includes a primary cell (PCell, Primary Cell).

[0141] As an embodiment, the cell in the present application includes a secondary cell (SCell, Secondary Cell).

[0142] As an embodiment, the cell in the present application includes a special cell (SpCell, Special Cell).

[0143] As an embodiment, the cell in the present application is a service cell of the first node.

[0144] As an embodiment, the cells in the present application are respectively allocated SCellIndex or ServCellIndex.

[0145] As an embodiment, the N cells include multiple cells.

[0146] As an embodiment, the N cells only include multiple service cells.

[0147] As an embodiment, the cells included in the N cells belong to the same cell group.

[0148] As an embodiment, the cells included in the N cells all belong to MCG (Master Cell Group) or SCG (Secondary Cell Group).

[0149] As an embodiment, the cells included in the N cells belong to the same PUCCH (Physical Uplink Control Channel) group.

[0150] As an embodiment, a PUCCH group includes a group of cells, and the PUCCH signaling of the group of cells is associated with the PUCCH of the SpCell, or the PUCCH signaling of the group of cells is associated with the PUCCH of the PUCCH SCell; a PUCCH SCell is an SCell configured with PUCCH.

[0151] As an embodiment, a PUCCH group includes a group of cells, and the PUCCH signaling of the group of cells is associated with the PUCCH of the same cell.

[0152] As an embodiment, the N cells include cells having the same numerology.

[0153] As an embodiment, the N cells include cells having the same subcarrier spacing configuration.

[0154] As an embodiment, there are two cells among the N cells having different subcarrier spacing configurations.

[0155] As an embodiment, the Active BWP configured for the cells included in the N cells have the same numerology.

[0156] As an embodiment, the Active BWP configured for the cells included in the N cells have the same subcarrier spacing configuration.

[0157] As an embodiment, there are two cells among the N cells and the Active BWP configured therein has different subcarrier spacing configurations.

[0158] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by the PDCCH candidates in the multiple CORESETs" includes: the multiple overlapping PDCCH monitoring opportunities are respectively used to monitor the PDCCH candidates in the multiple CORESETs.

[0159] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include the time domain resources occupied by the PDCCH candidates in the multiple CORESETs" includes: the PDCCH candidates belonging to the first time window in the multiple CORESETs respectively belong to the multiple overlapping PDCCH monitoring opportunities in the time domain.

[0160] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs" includes: the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs in the first time window.

[0161] As an embodiment, the multiple CORESETs are two CORESETs.

[0162] As an embodiment, the plurality of CORESETs are greater than two CORESETs.

[0163] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by the PDCCH candidates in the multiple CORESETs" includes: the first node respectively monitors the PDCCH candidates in the multiple CORESETs in the multiple overlapping PDCCH monitoring opportunities.

[0164] As an embodiment, the target CORESET group includes part or all of the multiple CORESETs.

[0165] As an embodiment, the target CORESET group includes some CORESETs among the multiple CORESETs.

[0166] As an embodiment, the target CORESET group includes the multiple CORESETs.

[0167] As an embodiment, the multiple overlapping PDCCH monitoring opportunities overlap in pairs.

[0168] As an embodiment, any two PDCCH monitoring occasions among the multiple overlapping PDCCH monitoring occasions overlap.

[0169] As an embodiment, the multiple overlapping PDCCH monitoring opportunities are two overlapping PDCCH monitoring opportunities.

[0170] As an embodiment, the multiple overlapping PDCCH monitoring opportunities are greater than two overlapping PDCCH monitoring opportunities.

[0171] As an embodiment, the multiple overlapping PDCCH monitoring opportunities are respectively monitoring opportunities of the multiple CORESETs.

[0172] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by the PDCCH candidates in the multiple CORESETs" includes: the multiple overlapping PDCCH monitoring opportunities respectively correspond to the multiple CORESETs, and at least one PDCCH candidate in any one of the multiple CORESETs belongs to a PDCCH monitoring opportunity among the corresponding multiple overlapping PDCCH monitoring opportunities in the time domain.

[0173] As an embodiment, the meaning of "the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by the PDCCH candidates in the multiple CORESETs" includes: the multiple overlapping PDCCH monitoring opportunities respectively correspond to the multiple CORESETs, and at least one PDCCH alternative in any CORESET of the multiple CORESETs is monitored in a PDCCH monitoring opportunity among the corresponding multiple overlapping PDCCH monitoring opportunities.

[0174] As an embodiment, the target CORESET group includes only each CORESET in the plurality of CORESETs that has the same QCL characteristics as the first CORESET.

[0175] As an embodiment, the target CORESET group includes each CORESET in the plurality of CORESETs having the same or different QCL characteristics as the first CORESET.

[0176] As an embodiment, the target CORESET group includes each CORESET having the same QCL characteristics as the first CORESET and each CORESET having different QCL characteristics from the first CORESET among the plurality of CORESETs.

[0177] As an embodiment, the target CORESET group includes at least one CORESET among the plurality of CORESETs having the same QCL characteristics as the first CORESET.

[0178] As an embodiment, the target CORESET group includes at least one CORESET among the plurality of CORESETs having the same or different QCL characteristics as the first CORESET.

[0179] As an embodiment, the target CORESET group includes at least one CORESET having the same QCL characteristics as the first CORESET and at least one CORESET having different QCL characteristics from the first CORESET among the plurality of CORESETs.

[0180] As an embodiment, the QCL characteristics of a CORESET depend on a TCI state applied to the CORESET.

[0181] As an embodiment, the QCL characteristics of a CORESET depend on an RS (Reference Signal) resource indicated by a TCI state applied to the CORESET.

[0182] As an embodiment, the QCL characteristics of a CORESET depend on the QCL characteristics of an RS resource indicated by a TCI state applied to a CORESET.

[0183] As an embodiment, the QCL characteristic of a CORESET is the same as the QCL characteristic of an RS resource indicated by a TCI state applied to the CORESET.

[0184] As an embodiment, the QCL characteristics include QCL parameters.

[0185] As an embodiment, an RS resource indicated by a TCI state is an SS / PBCH block resource or a CSI-RS resource.

[0186] As an embodiment, for the purpose of determining the CORESET, a SS / PBCH block is considered to have different QCL'typeD'properties than a CSI-RS.

[0187] As an embodiment, in determining the second CORESET, one SS / PBCH block is considered to have different QCL characteristics from one CSI-RS.

[0188] As an embodiment, in determining at least one CORESET in the target CORESET group, one SS / PBCH block is considered to have different QCL characteristics from one CSI-RS.

[0189] As an embodiment, the QCL characteristic is a 'type D' characteristic.

[0190] As an embodiment, the QCL characteristic is one of 'type A' characteristic, 'type B' characteristic, 'type C' characteristic or 'type D' characteristic.

[0191] As an example, the 'type A' characteristics include Doppler shift, Doppler spread, average delay, and delay spread.

[0192] As an example, the 'type B' characteristics include Doppler shift and Doppler spread.

[0193] As an embodiment, the 'type C' characteristics include Doppler shift and average delay.

[0194] As an embodiment, the 'typeD' characteristic includes a spatial reception parameter (SpatialRxparameter).

[0195] As an example, for the specific definitions of 'typeA', 'typeB', 'typeC' and 'typeD', refer to Section 5.1.5 of 3GPP TS 38.214.

[0196] As an embodiment, the target CORESET group includes the first CORESET and the second CORESET.

[0197] As an embodiment, the target CORESET group includes at least the first CORESET and the second CORESET.

[0198] As an embodiment, the target CORESET group includes only the first CORESET and the second CORESET.

[0199] As an embodiment, the target CORESET group includes the first CORESET and the second CORESET, and at least one CORESET other than the first CORESET and the second CORESET among the multiple CORESETs.

[0200] As an embodiment, the target CORESET group includes at least one CORESET having the same QCL characteristics as “one of the first CORESET and the second CORESET”.

[0201] As an embodiment, a TCI state is applied to a CORESET.

[0202] As an embodiment, “a TCI state is applied to a CORESET” means that: an RS (Reference Signal) resource indicated by the TCI state is used to determine the QCL characteristics of the CORESET.

[0203] As an embodiment, “a TCI state is applied to a CORESET” means that a QCL characteristic of an RS resource indicated by the TCI state is the same as a QCL characteristic of the CORESET.

[0204] As an embodiment, "the QCL characteristics of an RS resource indicated by the one TCI state are the same as the QCL characteristics of the one CORESET" includes: the first node assumes that the QCL characteristics of an RS resource indicated by the one TCI state are the same as the QCL characteristics of the one CORESET.

[0205] As an embodiment, "one TCI state is applied to one CORESET" means that the one TCI state is used to indicate quasi-co-location information of a DMRS (DeModulation Reference Signals) antenna port received for a PDCCH in the one CORESET.

[0206] As an embodiment, “one TCI state is applied to one CORESET” means that: the one TCI state is used to indicate the quasi co-location parameters of the DMRS antenna port for PDCCH reception in the one CORESET.

[0207] As an embodiment, “one TCI state is applied to one CORESET” means that: the one TCI state indicates a quasi co-location relationship between at least one reference signal resource and a DMRS antenna port for PDCCH reception in the one CORESET.

[0208] As an embodiment, “a TCI state is applied to a CORESET” means that a DMRS antenna port for PDCCH reception in the CORESET is quasi co-located with at least one reference signal resource indicated by the TCI state.

[0209] As an embodiment, both types of symbols are configured as DL by higher layer parameters.

[0210] As an embodiment, both types of symbols are configured as DL (Down Link) or Flexible by higher layer parameters.

[0211] As an embodiment, the N cells all include first-category symbols.

[0212] As an embodiment, the N cells all include first-category symbols, and the first-category symbols in the N cells are indicated respectively.

[0213] As an embodiment, the N cells all include first-category symbols, and positions of the first-category symbols in the N cells are respectively indicated.

[0214] As an embodiment, the N cells all include first-category symbols, and indexes of the first-category symbols in the N cells are respectively indicated.

[0215] As an embodiment, the N cells all include first-category symbols, and the first-category symbols in the N cells are indicated by the same signaling.

[0216] As an embodiment, the N cells all include first-category symbols, and positions of the first-category symbols in the N cells are the same.

[0217] As an embodiment, the N cells all include first-category symbols, and indexes of the first-category symbols in the N cells are the same.

[0218] As an embodiment, only part of the N cells include the first type of symbols.

[0219] As an embodiment, the determination of the first CORESET depends on whether there is a cell among the N cells that includes the first type of symbols in the first time window.

[0220] As an embodiment, the determination of the first CORESET depends on whether each of the N cells includes the first type of symbols in the first time window.

[0221] As an embodiment, when there is more than one cell among the N cells that includes the first type of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0222] As an embodiment, when there is one cell among the N cells that includes only the first type of symbols among the two types of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0223] As an embodiment, when there is more than one cell among the N cells that includes only the first type of symbols among the two types of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0224] As an embodiment, when there is a cell among the N cells in which part of the symbols included in the first time window are the first type of symbols, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0225] As an embodiment, when there is more than one cell among the N cells whose part of the symbols included in the first time window are the first type of symbols, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0226] As an embodiment, when there is more than one cell among the N cells in which every symbol included in the first time window is a symbol of the first category, the determination of the first CORESET depends on the cell among the N cells that includes the first category of symbols in the first time window.

[0227] As an embodiment, when there is a cell among the N cells in which every symbol included in the first time window is a symbol of the first category, determination of the first CORESET depends on the cell among the N cells that includes the first category of symbols in the first time window.

[0228] As an embodiment, when there is a cell among the N cells that includes the first category of symbols and another category of symbols among the two categories of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first category of symbols in the first time window.

[0229] As an embodiment, when there is more than one cell among the N cells that includes the first category of symbols and another category of symbols among the two categories of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first category of symbols in the first time window.

[0230] Example 2

[0231] 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.

[0232] 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 / EPS 200 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 / EPS 200 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.

[0233] As an embodiment, the first node in the present application includes the UE201.

[0234] As an embodiment, the first node in the present application includes the UE241.

[0235] As an embodiment, the second node in the present application includes the gNB203.

[0236] Example 3

[0237] 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.

[0238] 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 for 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 in 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.).

[0239] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0240] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0241] As an embodiment, the first information block set is generated in the RRC sublayer 306.

[0242] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0243] Example 4

[0244] 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 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0245] 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 .

[0246] 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.

[0247] 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, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. 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 a different antenna 420.

[0248] 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.

[0249] 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.

[0250] 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.

[0251] 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 with the at least one processor. The second communication device 450 device at least: receives a first information block set, the first information block set is used to configure multiple CORESETs, the multiple CORESETs are configured to N cells, N is a positive integer greater than 1; determines a first CORESET from the multiple CORESETs; monitors PDCCH in only a target CORESET group among the multiple CORESETs in a first time window, the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH alternatives in the multiple CORESETs; wherein the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

[0252] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block set, the first information block set is used to configure multiple CORESETs, the multiple CORESETs are configured to N cells, N is a positive integer greater than 1; determining a first CORESET from the multiple CORESETs; monitoring PDCCH in only a target CORESET group among the multiple CORESETs in a first time window, the first time window consisting of a plurality of overlapping PDCCH monitoring opportunities, the plurality of overlapping PDCCH monitoring opportunities respectively including time domain resources occupied by alternative PDCCHs in the multiple CORESETs; wherein the target CORESET group includes each CORESET in the multiple CORESETs having the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, the first type of symbol being one of the two types of symbols.

[0253] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, wherein 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 first information block set, the first information block set is used to configure multiple CORESETs, the multiple CORESETs are configured to N cells, N is a positive integer greater than 1; wherein the receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group among the multiple CORESETs in a first time window; the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs; the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0254] 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 first information block set, the first information block set is used to configure a plurality of CORESETs, the plurality of CORESETs are configured to N cells, N is a positive integer greater than 1; wherein a receiver of the first information block set determines a first CORESET from the plurality of CORESETs, and monitors a PDCCH in only a target CORESET group in the plurality of CORESETs in a first time window; the first time window is composed of The target CORESET group includes each CORESET in the multiple CORESETs having the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; and the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

[0255] As an embodiment, the first node in the present application includes the second communication device 450.

[0256] As an embodiment, the second node in the present application includes the first communication device 410.

[0257] 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 set 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 set in the present application.

[0258] As an embodiment, at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is used to monitor PDCCH in only the target CORESET group among the multiple CORESETs in the first time window in the present application.

[0259] 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 determine the first CORESET from the multiple CORESETs in the present application.

[0260] As an embodiment, at least one of {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 determine the first CORESET from the multiple CORESETs in the present application.

[0261] 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 determine the second CORESET in the present application.

[0262] As an embodiment, at least one of {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 determine the second CORESET in the present application.

[0263] Example 5

[0264] Embodiment 5 illustrates a flowchart of wireless 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 U1 and the second node N2 are two communication nodes transmitted via an air interface, respectively, wherein the steps in block F51 are optional.

[0265] for The first node U1 , receiving a first information block set in step S5101; determining a first CORESET from a plurality of CORESETs in step S5102; determining a second CORESET in step S5103; monitoring PDCCH in only a target CORESET group among the plurality of CORESETs in a first time window in step S5104;

[0266] for The second node N2 , in step S5201, a first information block set is sent.

[0267] In Embodiment 5, the first information block set is used to configure multiple CORESETs, and the multiple CORESETs are configured to N cells, where N is a positive integer greater than 1; the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs; the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

[0268] As an embodiment, the first node U1 is the first node in this application.

[0269] As an embodiment, the second node N2 is the second node in this application.

[0270] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0271] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0272] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0273] As an embodiment, the physical channel occupied by the first information block set includes PDSCH (Physical Downlink Shared Channel).

[0274] As an embodiment, the reception of the first information block set is earlier than the starting time of the first time window.

[0275] As an example, Figure 5 The steps in box F51 exist, and the method in the first node U1 used for wireless communication includes: determining a second CORESET; wherein the second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0276] As an embodiment, the second node sends a first signaling in the target CORESET group in the first time window.

[0277] As a sub-embodiment of the above embodiment, the first signaling is transmitted on a PDCCH (Physical Downlink Control CHannel).

[0278] As a sub-embodiment of the above embodiment, the first signaling is control signaling.

[0279] As a sub-embodiment of the above embodiment, the first signaling is DCI signaling.

[0280] As an embodiment, the advantage of the above method is that: in the first time window, the UE monitors the PDCCH only in the target CORESET group, and the second node sends the first signaling in the target CORESET group, thereby ensuring the UE's monitoring of the first signaling.

[0281] As an embodiment, whether the second node sends PDCCH in the multiple CORESETs in the first time window is related to the implementation of the second node.

[0282] As an embodiment, in the first time window, in which CORESET among the multiple CORESETs the second node sends the PDCCH is implementation-dependent by the second node.

[0283] As an embodiment, in the first time window, the second node sends the PDCCH in only the target CORESET group among the multiple CORESETs.

[0284] As an embodiment, the advantage of the above method is that: in the first time window, the UE monitors the PDCCH only in the target CORESET group, reducing the complexity of implementation, and the second node sends the PDCCH only in the target CORESET group, which also ensures the UE's monitoring of the PDCCH.

[0285] Example 6

[0286] Embodiment 6 illustrates a schematic diagram of determining the first CORESET according to an embodiment of the present application; Figure 6 shown.

[0287] In Embodiment 6, when there is one cell among the N cells that includes the first type of symbols in the first time window, determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0288] As an embodiment, only when there is one cell among the N cells that includes the first type of symbols in the first time window, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0289] As an embodiment, only when there is a cell among the N cells in which every symbol in the first time window is a symbol of the first category, the determination of the first CORESET depends on the cell among the N cells that includes the first category of symbols in the first time window.

[0290] As an embodiment, the determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window only when there is a cell among the N cells in which at least one symbol in the first time window is the first type of symbol.

[0291] Example 7

[0292] Embodiment 7 illustrates a schematic diagram of the relationship between the first CORESET, the first CSS set and the first USS set according to an embodiment of the present application; Figure 7 shown.

[0293] In embodiment 7, when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, which is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or, the first CORESET corresponds to a first USS set, which is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

[0294] As a sub-embodiment of the above embodiment, when there is a CORESET among the multiple CORESETs corresponding to a CSS (Common search space) set, the first CORESET corresponds to a first CSS set; when each CORESET among the multiple CORESETs corresponds to a USS set, the first CORESET corresponds to a first USS (UE-specific search space) set.

[0295] As a sub-embodiment of the above embodiment, when any PDCCH candidate in the multiple CORESETs in the first time window does not belong to a CSS set, the first CORESET corresponds to a first USS set.

[0296] As a sub-embodiment of the above embodiment, when each CORESET in the multiple CORESETs does not correspond to a CSS set, the first CORESET corresponds to a first USS set.

[0297] As a sub-embodiment of the above embodiment, when there is at least one PDCCH candidate among the multiple CORESETs belonging to a CSS set in the first time window, the first CORESET corresponds to a first CSS set.

[0298] As an embodiment, when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, which is a CSS set with the smallest index (with lowest index) among the cells including the CSS set with the smallest index (with lowest index).

[0299] As an embodiment, when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first USS set, and the first USS set is a USS set with a minimum index (with lowest index) in a cell with a minimum index (with lowest index) or the first USS set is a USS set with a minimum index (with lowest index) in a cell including a USS set with a minimum index (with lowest index).

[0300] As an embodiment, when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the smallest index (with lowest index) in the cell with the smallest index (with lowest index).

[0301] As an embodiment, when each of the N cells does not include the first type of symbols in the first time window, the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the smallest index (with lowest index) in the cell including the USS set with the smallest index (with lowest index).

[0302] As an embodiment, the meaning of "there is a CORESET corresponding to a CSS set among the multiple CORESETs" includes: there is a CORESET corresponding to a CSS set among the multiple CORESETs and at least one PDCCH alternative in the CSS set belongs to a PDCCH monitoring opportunity in the first time window in the time domain.

[0303] As an embodiment, "there is a CORESET corresponding to a CSS set among the multiple CORESETs" includes: there is a CORESET among the multiple CORESETs corresponding to a CSS set of PDCCH candidates included in the first time window.

[0304] As an embodiment, "there is a CORESET corresponding to a CSS set among the multiple CORESETs" includes: the multiple CORESETs correspond to multiple SS sets of the N cells, and the multiple SS sets include at least one CSS set.

[0305] As an embodiment, the meaning of “there is a CORESET corresponding to a CSS set among the multiple CORESETs” includes: the multiple CORESETs correspond to multiple SS sets of the N cells, any SS set among the multiple SS sets includes at least one PDCCH candidate in the first time window, and at least one SS set among the multiple SS sets is a CSS set; the meaning of “each CORESET among the multiple CORESETs does not correspond to a CSS set” includes: the multiple CORESETs correspond to multiple SS sets of the N cells, any SS set among the multiple SS sets includes at least one PDCCH candidate in the first time window; each SS set among the multiple SS sets is not a CSS set, or each SS set among the multiple SS sets is a USS set.

[0306] As an embodiment, the meaning of "there is a CORESET corresponding to a CSS set among the multiple CORESETs" includes: the multiple CORESETs correspond to multiple SS sets of the N cells, any SS set among the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window, and at least one SS set among the multiple SS sets is a CSS set; the meaning of "each CORESET among the multiple CORESETs does not correspond to a CSS set" includes: the multiple CORESETs correspond to multiple SS sets of the N cells, any SS set among the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window; each SS set among the multiple SS sets is not a CSS set, or each SS set among the multiple SS sets is a USS set.

[0307] As an embodiment, “each of the multiple CORESETs does not correspond to a CSS set” includes: the multiple CORESETs correspond to multiple SS sets of the N cells, and each of the multiple SS sets is not a CSS set.

[0308] As an embodiment, "the first CSS set is a CSS set with the lowest index (with lowestindex) in a cell including a CSS set with the lowest index (with lowestindex)" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; the first CSS set is a CSS set with the lowest index in the first cell, and the first cell is a cell among the N cells including the lowest index of the CSS sets in the multiple SS sets.

[0309] As an embodiment, "the first CSS set is the CSS set with the lowest index (with lowestindex) in the cell including the CSS set with the lowest index (with lowestindex)" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; any SS set of the multiple SS sets includes at least one PDCCH alternative in the first time window, or any SS set of the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window; the first CSS set is the CSS set with the lowest index in the first cell, and the first cell is the cell among the N cells including the lowest index of the CSS sets in the multiple SS sets.

[0310] As an embodiment, the first CSS set is determined among all CSS sets including at least one PDCCH candidate in the first time window.

[0311] As an embodiment, "the first USS set is a USS set with a minimum index in a cell with a minimum index" includes: the first USS set is a USS set with a minimum index in a cell with a minimum index among the N cells.

[0312] As an embodiment, "the first USS set is the USS set with the minimum index in the cell with the minimum index" includes: the first USS set is the USS set with the minimum index in the cell with the minimum index among the N cells that satisfies "including at least one PDCCH alternative in the first time window".

[0313] As an embodiment, "the first USS set is a USS set with a minimum index in a cell including a minimum index of a USS set" includes: the first USS set is a USS set with a minimum index in a cell including a minimum index of a USS set among the N cells.

[0314] As an embodiment, "the first USS set is a USS set with the minimum index in a cell including the minimum index of a USS set" includes: the first USS set is a USS set with the minimum index that satisfies "including at least one PDCCH alternative in the first time window" in a cell including the minimum index of a USS set among the N cells.

[0315] As an embodiment, the first USS set is determined over all USS sets with at least one PDCCH candidate in overlapping PDCCH monitoring occasions.

[0316] Example 8

[0317] Embodiment 8 illustrates a schematic diagram of the relationship between the first CORESET, the second CSS set and the second USS set according to an embodiment of the present application; Figure 8 As shown, attached Figure 8 In the embodiment, the N cells are cell #0, cell #1, cell #2...cell #N-1, wherein cell #1 and cell #2 include the first type of symbols in the first time window, and the cell #1 and the cell #2 belong to the first cell subgroup.

[0318] In Embodiment 8, when there is one cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0319] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup.

[0320] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0321] As an embodiment, the first cell subgroup includes only cells including the first type of symbols in the first time window among the N cells.

[0322] As an embodiment, the first cell subgroup includes all cells among the N cells that include the first type of symbols in the first time window.

[0323] As an embodiment, cells among the N cells that include the first type of symbols in the first time window all belong to a first cell subgroup.

[0324] As an embodiment, when there is a cell among the N cells in which every symbol included in the first time window is a symbol of the first category, the first cell subgroup includes the cell among the N cells that includes the symbol of the first category in the first time window.

[0325] As an embodiment, when there is a cell among the N cells whose partial symbols included in the first time window are all the first type of symbols, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0326] As an embodiment, when there are multiple cells among the N cells and each symbol included in the first time window is a symbol of the first category, the first cell subgroup includes cells among the N cells that include the first category of symbols in the first time window.

[0327] As an embodiment, when there are multiple cells among the N cells whose partial symbols included in the first time window are all the first type of symbols, the first cell subgroup includes the cells among the N cells that include the first type of symbols in the first time window.

[0328] As an embodiment, the first CORESET subgroup includes all CORESETs among the multiple CORESETs that are configured to the cells in the first cell subgroup; when there is a CORESET corresponding to the CSS set in the first CORESET subgroup, the first CORESET corresponds to the second CSS set; when each CORESET in the first CORESET subgroup corresponds to the USS set, the first CORESET corresponds to the second USS set.

[0329] As a sub-embodiment of the above embodiment, when any PDCCH candidate in the first CORESET subgroup in the first time window does not belong to a CSS set, the first CORESET corresponds to a second USS set.

[0330] As a sub-embodiment of the above embodiment, when each CORESET in the first CORESET subgroup does not correspond to a CSS set, the first CORESET corresponds to a second USS set.

[0331] As a sub-embodiment of the above embodiment, when there is at least one PDCCH candidate in the first CORESET subgroup belonging to a CSS set in the first time window, the first CORESET corresponds to a second CSS set.

[0332] As an embodiment, the meaning of "there is a CORESET corresponding CSS set in the first CORESET subgroup" includes: there is a CORESET corresponding CSS set in the first CORESET subgroup and at least one PDCCH alternative in the CSS set belongs to a PDCCH monitoring opportunity in the first time window in the time domain.

[0333] As an embodiment, "there is a CORESET corresponding to a CSS set in the first CORESET subgroup" includes: there is a CORESET corresponding to a CSS set of PDCCH candidates included in the first time window in the first CORESET subgroup.

[0334] As an embodiment, "there is a CORESET corresponding CSS set in the first CORESET subgroup" includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, and the multiple SS sets include at least one CSS set.

[0335] As an embodiment, the meaning of “there is a CORESET corresponding to a CSS set in the first CORESET subgroup” includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, any SS set of the multiple SS sets includes at least one PDCCH alternative in the first time window, and at least one SS set of the multiple SS sets is a CSS set; the meaning of “each CORESET in the first CORESET subgroup does not correspond to a CSS set” includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, any SS set of the multiple SS sets includes at least one PDCCH alternative in the first time window; each SS set in the multiple SS sets is not a CSS set, or each SS set in the multiple SS sets is a USS set.

[0336] As an embodiment, the meaning of "there is a CORESET corresponding to a CSS set in the first CORESET subgroup" includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, any SS set of the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window, and at least one SS set of the multiple SS sets is a CSS set; the meaning of "each CORESET in the first CORESET subgroup does not correspond to a CSS set" includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, any SS set of the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window; each SS set in the multiple SS sets is not a CSS set, or each SS set in the multiple SS sets is a USS set.

[0337] As an embodiment, "each CORESET in the first CORESET subgroup does not correspond to a CSS set" includes: the first CORESET subgroup corresponds to multiple SS sets of the N cells, and each SS set in the multiple SS sets is not a CSS set.

[0338] As an embodiment, the second CSS set is a CSS set with the lowest index (with lowest index) among the "cells including the CSS set with the lowest index (with lowest index)" in the first cell subgroup.

[0339] As an embodiment, "the second CSS set is a CSS set with the lowest index (with lowest index) in the cell including the CSS set with the lowest index (with lowest index) in the first cell subgroup" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; the second CSS set is a CSS set with the lowest index in the second cell, and the second cell is the cell with the lowest index of the CSS set in the multiple SS sets in the first cell subgroup.

[0340] As an embodiment, "the second CSS set is the CSS set with the lowest index (with lowest index) in the cell including the CSS set with the lowest index (with lowest index) in the first cell subgroup" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; any SS set among the multiple SS sets includes at least one PDCCH alternative in the first time window, or any SS set among the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window; the second CSS set is the CSS set with the lowest index in the second cell, and the second cell is the cell with the lowest index of the CSS set among the multiple SS sets in the first cell subgroup.

[0341] As an embodiment, the second CSS set is determined among all CSS sets including at least one PDCCH candidate in the first time window.

[0342] As an embodiment, the second USS set is a USS set with the lowest index (with lowest index) in "the cell with the lowest index (with lowest index) in the first cell subgroup".

[0343] As an embodiment, the second USS set is a USS set with the lowest index (with lowest index) among "the cells including the USS set with the lowest index (with lowest index) in the first cell subgroup".

[0344] As an embodiment, "the second USS set is a USS set with a minimum index in a cell with a minimum index in the first cell subgroup" includes: the second USS set is a USS set with a minimum index in a cell with a minimum index in the first cell subgroup.

[0345] As an embodiment, "the second USS set is a USS set with the minimum index in the cell with the minimum index in the first cell subgroup" includes: the second USS set is a USS set with the minimum index in the cell with the minimum index in the first cell subgroup that satisfies "including at least one PDCCH alternative in the first time window".

[0346] As an embodiment, "the second USS set is a USS set with the minimum index in the cell with the minimum index of the USS set in the first cell subgroup" includes: the second USS set is a USS set with the minimum index in the cell with the minimum index of the USS set in the first cell subgroup.

[0347] As an embodiment, "the second USS set is a USS set with the minimum index in the cell including the minimum index of the USS set in the first cell subgroup" includes: the second USS set is a USS set with the minimum index in the cell including the minimum index of the USS set in the first cell subgroup that satisfies "including at least one PDCCH alternative in the first time window".

[0348] As an embodiment, the second USS set is determined from all USS sets in the first cell subgroup that include at least one PDCCH candidate in the first time window.

[0349] Example 9

[0350] Embodiment 9 illustrates a schematic diagram of the relationship between the first CORESET, the first CSS set and the second USS set according to an embodiment of the present application; Fig. 9 shown.

[0351] In Embodiment 9, when there is one cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, which is a CSS set with a minimum index among cells including a minimum index of the CSS set, or the first CORESET corresponds to a second USS set, which is a USS set in a first cell subgroup, and the first cell subgroup includes cells among the N cells that include the first type of symbols in the first time window.

[0352] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with a minimum index in the cell including the minimum index of the CSS set.

[0353] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a second USS set, the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0354] As an embodiment, when there is a CORESET corresponding to a CSS (Common search space) set among the multiple CORESETs, the first CORESET corresponds to the first CSS set; when each CORESET among the multiple CORESETs corresponds to a USS set, the first CORESET corresponds to the second USS set.

[0355] As a sub-embodiment of the above embodiment, when any PDCCH candidate in the multiple CORESETs in the first time window does not belong to a CSS set, the first CORESET corresponds to a second USS set.

[0356] As a sub-embodiment of the above embodiment, when each CORESET in the multiple CORESETs does not correspond to a CSS set, the first CORESET corresponds to a second USS set.

[0357] Example 10

[0358] Embodiment 10 illustrates a schematic diagram of a second CORESET according to an embodiment of the present application; Fig.10 shown.

[0359] In Embodiment 10, the first node in the present application determines a second CORESET; wherein the second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0360] As an embodiment, the determination of the second CORESET is performed after excluding all CSS sets that satisfy the first condition and all USS sets that satisfy the first condition; the second CORESET corresponds to a third CSS set, or the second CORESET corresponds to a third USS set.

[0361] As an embodiment, the determination of the second CORESET is performed after excluding all CSS sets that meet the first condition and all USS sets that meet the first condition; the second CORESET corresponds to the third CSS set.

[0362] As an embodiment, the determination of the second CORESET is performed after excluding all CSS sets that meet the first condition and all USS sets that meet the first condition; the second CORESET corresponds to the third USS set.

[0363] As an embodiment, the first condition includes: the associated CORESET has the same QCL characteristics as the first CORESET.

[0364] As an embodiment, the QCL types of the first CORESET and the second CORESET are set to 'typeD'.

[0365] As an embodiment, the first node is configured with the parameter twoQCLTypeDforPDCCHRepetition.

[0366] As an embodiment, the searchSpaceLinkingId included in the SS set corresponding to the second CORESET has the same value as the searchSpaceLinkingId included in the SS set corresponding to the first CORESET.

[0367] As an embodiment, the specific definition of twoQCLTypeDforPDCCHRepetition refers to Section 6.3.2 of 3GPPTS38.331.

[0368] As an embodiment, the second CORESET corresponds to the third CSS set, and the third CSS set is a CSS set in the first cell subgroup, or the second CORESET corresponds to the third USS set, and the third USS set is a USS set in the first cell subgroup.

[0369] As an embodiment, the first CORESET subgroup includes all CORESETs among the multiple CORESETs that are configured to the cells in the first cell subgroup; when there is a CORESET corresponding to the CSS set in the first CORESET subgroup and the CSS set does not satisfy the first condition, the second CORESET corresponds to the third CSS set; when each CORESET in the first CORESET subgroup except the first CORESET corresponds to the USS set, the second CORESET corresponds to the third USS set.

[0370] As an embodiment, when any PDCCH candidate in at least one CORESET other than the first CORESET included in the first CORESET subgroup in the first time window does not belong to the CSS set, the second CORESET corresponds to a third USS set.

[0371] As an embodiment, when each CORESET in the first CORESET subgroup except the first CORESET does not correspond to a CSS set, the second CORESET corresponds to a third USS set.

[0372] As an embodiment, when in the first time window there is at least one PDCCH candidate belonging to a CSS set in at least one CORESET included in the first CORESET subgroup other than the first CORESET, the second CORESET corresponds to a third CSS set.

[0373] As an embodiment, the third CSS set is a CSS set that does not satisfy the first condition and has the lowest index (with lowest index) among "the cells including the CSS set in the first cell subgroup".

[0374] As an embodiment, "the third CSS set is a CSS set that does not satisfy the first condition and has the lowest index (with lowest index) in the cell including the smallest index of the CSS set in the first cell subgroup" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; the third CSS set is a CSS set that does not satisfy the first condition and has the lowest index in the second cell, and the second cell is the cell in the first cell subgroup including the smallest index of the CSS set in the multiple SS sets.

[0375] As an embodiment, "the third CSS set is a CSS set that does not satisfy the first condition and has the lowest index (with lowest index) in the cell including the smallest index of the CSS set (with lowest index) in the first cell subgroup" includes: the multiple CORESETs correspond to multiple SS sets of the N cells; any SS set of the multiple SS sets includes at least one PDCCH alternative in the first time window, or any SS set of the multiple SS sets includes at least one PDCCH alternative in a PDCCH monitoring opportunity in the first time window; the third CSS set is a CSS set that does not satisfy the first condition and has the lowest index in the second cell, and the second cell is the cell in the first cell subgroup including the smallest index of the CSS set in the multiple SS sets.

[0376] As an embodiment, the third CSS set is determined from all CSS sets that include at least one PDCCH candidate in the first time window and do not satisfy the first condition.

[0377] As an embodiment, the third USS set is a USS set that does not satisfy the first condition and has a lowest index (with lowest index) in the "cell with the lowest index in the first cell subgroup".

[0378] As an embodiment, the third USS set is a USS set that does not satisfy the first condition and has the lowest index (with lowest index) among "the cell including the USS set with the lowest index in the first cell subgroup".

[0379] As an embodiment, "the third USS set is a USS set that does not satisfy the first condition and has the smallest index in the cell with the smallest index in the first cell subgroup" includes: the third USS set is a USS set that does not satisfy the first condition and has the smallest index in the cell with the smallest index of the USS set in the first cell subgroup.

[0380] As an embodiment, "the third USS set is a USS set with the smallest index that does not satisfy the first condition and has the smallest index in the cell with the smallest index in the first cell subgroup" includes: the third USS set is a USS set with the smallest index that satisfies "including at least one PDCCH alternative in the first time window" and does not satisfy the first condition in the cell with the smallest index in the first cell subgroup.

[0381] As an embodiment, "the third USS set is a USS set that does not satisfy the first condition and has the minimum index in the cell including the minimum index of the USS set in the first cell subgroup" includes: the third USS set is a USS set with the minimum index that satisfies "including at least one PDCCH alternative in the first time window" and does not satisfy the first condition in the cell including the minimum index of the USS set in the first cell subgroup.

[0382] As an embodiment, the third USS set is determined from all USS sets in the first cell subgroup that include at least one PDCCH candidate in the first time window and do not satisfy the first condition.

[0383] As an embodiment, the target CORESET group includes one or more CORESETs having two activated TCI states.

[0384] As an embodiment, when there is a CORESET in the target CORESET group with two activated TCI states, the first node reports sfn-QCL-TypeD-Collision-twoTCI.

[0385] As an embodiment, the specific definition of sfn-QCL-TypeD-Collision-twoTCI refers to Section 6.3.2 of 3GPP TS38.331.

[0386] Embodiment 11

[0387] Embodiment 11 illustrates a schematic diagram of two types of symbols according to an embodiment of the present application; Fig.11 shown.

[0388] In embodiment 11, both types of symbols are configured as DL by higher layer parameters; uplink transmission is supported on one or more resource blocks (RBs) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0389] As an embodiment, uplink transmission is supported on one or more resource blocks (Resource Block, RB) in only the first type of symbols among the two types of symbols.

[0390] As an embodiment, the other type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0391] As an embodiment, the first node device includes:

[0392] The first receiver receives a second set of information blocks;

[0393] At least one cell among the N cells includes at least one first-type symbol, and the second information block set is used to determine the position of the first-type symbol included in each cell among the at least one cell.

[0394] As an embodiment, "the position of the first category of symbols" refers to: the index of the first category of symbols.

[0395] As an embodiment, "the position of the first category of symbols" refers to: the symbols occupied by the first category of symbols.

[0396] As an embodiment, "the position of the first type of symbols" refers to: the time domain resources occupied by the first type of symbols.

[0397] As an embodiment, "the position of the first type of symbols" refers to: the period of the first type of symbols.

[0398] As an embodiment, "the position of the first type of symbols" refers to: the time offset of the first type of symbols.

[0399] As an embodiment, "the position of the first type of symbols" refers to: the period and time offset of the first type of symbols.

[0400] As an embodiment, "the position of the first type of symbols" refers to: the time domain resources included in the first type of symbols within a period.

[0401] As an embodiment, "the position of the first category of symbols" refers to: the symbols included in the first category of symbols within a period.

[0402] As an embodiment, "the position of the first type of symbols" refers to: the time slot included in the first type of symbols in one cycle.

[0403] As an embodiment, the second information block set is carried by higher layer signaling.

[0404] As an embodiment, the second information block set is carried by RRC (Radio Resource Control) signaling.

[0405] As an embodiment, the second information block set includes all or part of the fields in an RRC IE (Information Element).

[0406] As an embodiment, the second information block set includes all or part of the fields in each RRC IE in multiple RRC IEs.

[0407] As an embodiment, the second information block set includes all or part of the fields in the TDD-UL-DL-ConfigCommon IE.

[0408] As an embodiment, the second information block set includes all or part of the fields in the TDD-UL-DL-ConfigDedicated IE.

[0409] As an embodiment, the second information block set includes all or part of the fields in the ServingCellConfig IE.

[0410] As an embodiment, the second information block set includes all or part of the fields in the ServingCellConfigCommonSIB IE.

[0411] As an embodiment, the second information block set includes information in all or part of the fields in the ServingCellConfigCommon IE.

[0412] As an embodiment, the second information block set is carried by at least one RRC IE.

[0413] As an embodiment, the name of an IE carrying the second information block set includes TDD-UL-DL-Config.

[0414] As an embodiment, the name of an IE carrying the second information block set includes ServingCellConfig.

[0415] As an embodiment, the second information block set is carried by MAC CE (Medium Access Control layer Control Element, media access control layer control element).

[0416] As an embodiment, the second information block set includes MAC CE.

[0417] As an embodiment, the second information block set is transmitted on a downlink physical layer data channel (ie, a downlink channel that can be used to carry physical layer data).

[0418] As an embodiment, the second information block set is transmitted on PDSCH.

[0419] As an embodiment, the second information block set is carried by DCI (Downlink control information).

[0420] As an embodiment, the second information block set includes DCI.

[0421] As an embodiment, the second information block set includes one or more fields in a DCI.

[0422] As an embodiment, the second information block set is carried by DCI format2_0.

[0423] As an embodiment, the second information block set includes DCI format2_0.

[0424] As an embodiment, the second information block set is carried jointly by RRC signaling and MAC CE.

[0425] As an embodiment, the second information block set is carried jointly by higher layer signaling and DCI.

[0426] As an embodiment, the second information block set is used by the first node to determine the first type of symbols.

[0427] As an embodiment, the second information block set indicates the first type of symbols.

[0428] As an embodiment, the second information block set is used to indicate the first type of symbols.

[0429] As an embodiment, the second information block set explicitly indicates the first category of symbols.

[0430] As an embodiment, the second information block set implicitly indicates the first category of symbols.

[0431] As an embodiment, the other type of symbols among the two types of symbols that is not the first type of symbols only supports downlink transmission, and only the first type of symbols among the two types of symbols supports downlink transmission and uplink transmission.

[0432] As an embodiment, the second category of symbols is another category of symbols among the two categories of symbols that is not the first category of symbols.

[0433] As an embodiment, the second type of symbols is configured as DL by higher layer parameters and is used for downlink transmission in all RBs in a cell.

[0434] As an embodiment, the second type of symbols is configured as DL or Flexible by higher layer parameters and is used for downlink transmission in all RBs in a cell.

[0435] As an embodiment, in a cell, symbols occupied by any uplink transmission are orthogonal to the second-category symbols of the two categories of symbols, and there is an uplink transmission occupying at least part of the first-category symbols of the cell.

[0436] As an embodiment, in a cell, all first-category symbols are used for uplink transmission.

[0437] As an embodiment, in a cell, at least part of all first-category symbols are used for uplink transmission.

[0438] As an embodiment, in a cell, at least one first-type symbol is used for uplink transmission to the first node, and at least one first-type symbol is used for downlink transmission to the first node.

[0439] As an embodiment, in a cell, there is at least one first-type symbol used for uplink transmission to the first node and downlink transmission to a user equipment other than the first node.

[0440] As an embodiment, in a cell including the first-category symbol, whether a first-category symbol is used for uplink transmission is related to base station implementation.

[0441] As an embodiment, in a cell including the first-category symbol, whether a first-category symbol is used for uplink transmission is determined according to base station scheduling.

[0442] As an embodiment, "the first type of symbols supports uplink transmission" includes: the first type of symbols are used for uplink transmission.

[0443] As an embodiment, "the first type of symbols supports uplink transmission" includes: the first type of symbols are reserved for uplink transmission.

[0444] As an embodiment, "the first type of symbols supports uplink transmission" includes: the first type of symbols are configured for uplink transmission.

[0445] As an embodiment, "the first type of symbols supports uplink transmission" includes: there is an uplink transmission occupying at least part of the first type of symbols.

[0446] As an embodiment, the first type of symbols is configured for both uplink and downlink.

[0447] As an embodiment, the first type of symbols are configured for uplink in part of RBs, and are configured for downlink in another part of RBs.

[0448] As an embodiment, the first type of symbols are used for uplink in part of RBs, and are used for downlink in another part of RBs.

[0449] As an embodiment, the first type of symbols is configured as DL (DownLink) by higher layer parameters and is configured for uplink in some RBs.

[0450] As a sub-embodiment of the above embodiment, the signaling for configuring the first type of symbols in the part of RBs for uplink includes the first information block set.

[0451] As an embodiment, the first type of symbols is configured as DL or Flexible by higher layer parameters and is configured for uplink in some RBs.

[0452] As a sub-embodiment of the above embodiment, the signaling for configuring the first type of symbols in the part of RBs for uplink includes the first information block set.

[0453] As an embodiment, the first type of symbols is configured as DL by higher layer parameters and is used for uplink in some RBs.

[0454] As an embodiment, the first type of symbols is configured as DL or Flexible by higher layer parameters and is used for uplink in part of RBs.

[0455] As an embodiment, the higher layer parameters are carried by RRC IE.

[0456] As an embodiment, the name of the RRC IE carrying the higher layer parameters includes TDD-UL-DL-Config.

[0457] As an embodiment, the higher layer parameters are carried by TDD-UL-DL-ConfigCommon IE.

[0458] As an embodiment, the higher layer parameter is TDD-UL-DL-ConfigCommon IE.

[0459] As an embodiment, the first type of symbols includes symbols used for full duplex / SBFD.

[0460] As an embodiment, the first type of symbols is used for full duplex / SBFD.

[0461] As an embodiment, the first information block set configures the first category of symbols as a first type.

[0462] As an embodiment, the first type is different from uplink and downlink.

[0463] As an embodiment, the first type is different from uplink, downlink and Flexible.

[0464] As an embodiment, the first type is different from sidelink.

[0465] Example 12

[0466] 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 and a first processor 1202.

[0467] As an embodiment, the first node device is a user equipment.

[0468] As an embodiment, the first node device is a relay node device.

[0469] 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.

[0470] As an embodiment, the first processor 1202 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.

[0471] As an embodiment, the first processor 1202 includes at least one of {receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0472] The first receiver 1201 receives a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0473] The first processor 1202 determines a first CORESET from the plurality of CORESETs;

[0474] The first receiver 1201 monitors the PDCCH in only the target CORESET group among the multiple CORESETs in a first time window;

[0475] In Embodiment 12, the first time window is composed of a plurality of overlapping PDCCH monitoring opportunities, and the plurality of overlapping PDCCH monitoring opportunities respectively include the time domain resources occupied by the PDCCH alternatives in the plurality of CORESETs; the target CORESET group includes each CORESET in the plurality of CORESETs having the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0476] As an embodiment, when there is one cell among the N cells that includes the first type of symbols in the first time window, determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0477] As an embodiment, when each of the N cells does not include the first type of symbol in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or, the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

[0478] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0479] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index in the cell including the minimum index of the CSS set, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0480] As an embodiment, it includes:

[0481] The first processor 1202 determines a second CORESET;

[0482] The second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; and the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0483] As an embodiment, both types of symbols are configured as DL by higher layer parameters; uplink transmission is supported on one or more resource blocks (Resource Block, RB) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0484] Example 13

[0485] 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.

[0486] As an embodiment, the second node device is a base station.

[0487] As an embodiment, the second node device is a user equipment.

[0488] As an embodiment, the second node device is a relay node device.

[0489] 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.

[0490] The second transmitter 1301 sends a first information block set, where the first information block set is used to configure multiple CORESETs, where the multiple CORESETs are configured for N cells, where N is a positive integer greater than 1;

[0491] In embodiment 13, the receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group among the multiple CORESETs in a first time window; the first time window is composed of multiple overlapping PDCCH monitoring opportunities, and the multiple overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH alternatives in the multiple CORESETs; the target CORESET group includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes a first type of symbol in the first time window, and the first type of symbol is one of the two types of symbols.

[0492] As an embodiment, when there is one cell among the N cells that includes the first type of symbols in the first time window, determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

[0493] As an embodiment, when each of the N cells does not include the first type of symbol in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or, the first CORESET corresponds to a first USS set, and the first USS set is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

[0494] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

[0495] As an embodiment, when there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with the minimum index in the cell including the minimum index of the CSS set, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window.

[0496] As an embodiment, the receiver of the first information block set determines a second CORESET; the second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

[0497] As an embodiment, both types of symbols are configured as DL by higher layer parameters; uplink transmission is supported on one or more resource blocks (Resource Block, RB) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

[0498] 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 devices 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) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0499] 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 first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1; A first processor determines a first CORESET from the plurality of CORESETs; The first receiver monitors the PDCCH in only the target CORESET group among the multiple CORESETs in a first time window, the first time window consisting of a plurality of overlapping PDCCH monitoring opportunities, the plurality of overlapping PDCCH monitoring opportunities respectively including time domain resources occupied by the PDCCH candidates in the multiple CORESETs; Among them, the target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

2. The first node device according to claim 1, characterized in that: When there is one cell among the N cells that includes the first type of symbols in the first time window, determination of the first CORESET depends on the cell among the N cells that includes the first type of symbols in the first time window.

3. The first node device according to claim 1 or 2, characterized in that: When each of the N cells does not include the first type of symbol in the first time window, the first CORESET corresponds to a first CSS set, which is a CSS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the CSS set, or the first CORESET corresponds to a first USS set, which is a USS set with the minimum index (with lowest index) in the cell with the minimum index (with lowest index) or the first USS set is a USS set with the minimum index (with lowest index) in the cell including the minimum index (with lowest index) of the USS set.

4. The first node device according to any one of claims 1 to 3, characterized in that: When there is a cell among the N cells that includes the first type of symbols in the first time window, the first cell subgroup includes the cell among the N cells that includes the first type of symbols in the first time window; the first CORESET corresponds to a second CSS set, and the second CSS set is a CSS set in the first cell subgroup, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in the first cell subgroup.

5. The first node device according to any one of claims 1 to 3, characterized in that: When there is a cell among the N cells that includes the first type of symbols in the first time window, the first CORESET corresponds to a first CSS set, and the first CSS set is a CSS set with a minimum index among the cells including the minimum index of the CSS set, or the first CORESET corresponds to a second USS set, and the second USS set is a USS set in a first cell subgroup, and the first cell subgroup includes the cells among the N cells that include the first type of symbols in the first time window.

6. The first node device according to any one of claims 1 to 5, characterized in that: include: The first processor determines a second CORESET; The second CORESET is one of the multiple CORESETs, and the QCL characteristics of the second CORESET are different from the QCL characteristics of the first CORESET; and the target CORESET group also includes each CORESET in the multiple CORESETs that has the same QCL characteristics as the second CORESET.

7. The first node device according to any one of claims 1 to 6, characterized in that: Both types of symbols are configured as DL by higher layer parameters; uplink transmission is supported on one or more resource blocks (ResourceBlock, RB) in only the first type of symbols among the two types of symbols, or, another type of symbols among the two types of symbols that are not the first type of symbols are only used for downlink transmission, and at least part of the first type of symbols in a cell including the first type of symbols are used for uplink transmission.

8. A second node device used for wireless communication, characterized in that: include: A second transmitter sends a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1; The receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group in the multiple CORESETs in a first time window; the first time window consists of a plurality of overlapping PDCCH monitoring opportunities, and the plurality of overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs; The target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

9. A method in a first node for wireless communication, characterized in that: include: receiving a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1; Determining a first CORESET from the plurality of CORESETs; Monitoring PDCCH in only a target CORESET group among the multiple CORESETs in a first time window, the first time window consisting of a plurality of overlapping PDCCH monitoring opportunities, the plurality of overlapping PDCCH monitoring opportunities respectively including time domain resources occupied by PDCCH candidates in the multiple CORESETs; Among them, the target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

10. A method in a second node for wireless communication, characterized in that: include: Sending a first information block set, where the first information block set is used to configure a plurality of CORESETs, where the plurality of CORESETs are configured for N cells, where N is a positive integer greater than 1; The receiver of the first information block set determines a first CORESET from the multiple CORESETs, and monitors PDCCH in only a target CORESET group in the multiple CORESETs in a first time window; the first time window consists of a plurality of overlapping PDCCH monitoring opportunities, and the plurality of overlapping PDCCH monitoring opportunities respectively include time domain resources occupied by PDCCH candidates in the multiple CORESETs; The target CORESET group includes each CORESET among the multiple CORESETs that has the same QCL characteristics as the first CORESET; each of the N cells includes at least one of the two types of symbols in the first time window; the determination of the first CORESET depends on whether at least one of the N cells includes the first type of symbols in the first time window, and the first type of symbols is one of the two types of symbols.

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