A method and device used in a node for wireless communication

Abstract

The present application discloses a method and apparatus in a node used for wireless communication. A first node receives a first information block; receives a first signaling; receives a first signal. The first information block is used to indicate S search space sets; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is satisfied is used to determine the target TCI state set.

Description

Technical Field

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

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

[0003] In the new air interface technology, multi-antenna (such as multiple input multiple output (MIMO), multiple transmit and receive nodes (TRP) and multiple panels (Pannel)) technology is an important component. In order to adapt to more diverse application scenarios and meet higher requirements, the 3GPP RAN#86 plenary meeting passed the further enhanced WI of MIMO under NR to support more robust and spectrum efficient multi-antenna communications and more application scenarios. Summary of the invention

[0004] In a multi-antenna system, such as multi-transmission receiving point (TRP) / multi-panel communication, the same channel or signal can be transmitted through multiple TRPs to enhance the robustness of transmission. Release 16 (Rel-16) supports multi-transmission receiving point / multi-panel transmission of data channels, and 3GPP plans to introduce multi-transmission receiving point / multi-panel transmission of control channels in Release 17 (Rel-17).

[0005] The present application discloses a solution to the control channel problem in a multi-antenna system. It should be noted that in the description of the present application, only a multi-antenna system, especially a multi-transmitting receiving node / multi-panel transmission system is used as a typical application scenario or example; the present application is also applicable to other scenarios facing similar problems (such as scenarios with higher requirements for the robustness or coverage of the control channel, or scenarios that require PDCCH association outside of multi-transmitting receiving nodes / multi-panel transmission, including but not limited to coverage enhancement systems, 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, the use of a unified solution for different scenarios (including but not limited to scenarios of multi-antenna systems) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in the first node device of the present application can be applied to the second node device, and vice versa. In particular, the interpretation of the terminology, nouns, functions, and variables in this application (unless otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36 series, TS38 series, and TS37 series.

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

[0007] receiving a first information block; receiving a first signal; receiving a first signal;

[0008] Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0009] As an embodiment, the problem to be solved by the present application is: how to determine the value range of the TCI state indicated by the control channel in the multi-antenna system.

[0010] As an embodiment, the problem to be solved by the present application is: how to determine the TCI status of the data channel scheduled by the control channel when supporting single TRP and multiple TRPs.

[0011] As an embodiment, the essence of the above method is that the first signaling is control signaling, the first signal is data channel transmission scheduled by the first signaling; when the first condition set is met, it is a multi-TRP situation, and when the first condition set is not met, it is a single TRP situation; the value range of the TCI state of the data channel is determined according to whether it is a single TRP situation or a multi-TRP situation. The advantage of adopting the above method is that it supports single TRP and multi-TRP situations, adopts a more appropriate TCI state for different situations, and improves system reliability and transmission efficiency.

[0012] According to one aspect of the present application, the above method is characterized in that when the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

[0013] According to one aspect of the present application, the above method is characterized in that the first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

[0014] According to one aspect of the present application, the above method is characterized in that it includes:

[0015] receiving a second information block, receiving a third information block, and receiving a fourth information block;

[0016] Among them, the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; among the second information block, the third information block and the fourth information block, only the second information block and the third information block include a third field, and the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0017] According to one aspect of the present application, the above method is characterized in that the first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set outside the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

[0018] According to one aspect of the present application, the above method is characterized in that the phrase "a control channel alternative is associated with the first control channel alternative" means that the first node device assumes that the one control channel alternative carries the same DCI as the first control channel alternative.

[0019] According to one aspect of the present application, the above method is characterized in that the phrase "a control channel alternative is associated with the first control channel alternative" means: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which it belongs is the same as the index of the first control channel alternative in the first search space set.

[0020] According to one aspect of the present application, the above method is characterized in that it includes:

[0021] Send target information block;

[0022] The target information block is used to indicate whether the first signal is correctly received.

[0023] The present application discloses a method in a second node for wireless communication, characterized by comprising:

[0024] Sending a first information block; sending a first signaling; sending a first signal;

[0025] Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0026] According to one aspect of the present application, the above method is characterized in that when the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

[0027] According to one aspect of the present application, the above method is characterized in that the first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

[0028] According to one aspect of the present application, the above method is characterized in that it includes:

[0029] sending a second information block, sending a third information block, and sending a fourth information block;

[0030] Among them, the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; among the second information block, the third information block and the fourth information block, only the second information block and the third information block include a third field, and the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0031] According to one aspect of the present application, the above method is characterized in that the first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set outside the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

[0032] According to one aspect of the present application, the above method is characterized in that the phrase "a control channel alternative is associated with the first control channel alternative" means that the recipient of the first signaling assumes that the one control channel alternative carries the same DCI as the first control channel alternative.

[0033] According to one aspect of the present application, the above method is characterized in that the phrase "a control channel alternative is associated with the first control channel alternative" means: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which it belongs is the same as the index of the first control channel alternative in the first search space set.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] receiving a target information block;

[0036] The target information block is used to indicate whether the first signal is correctly received.

[0037] The present application discloses a first node device for wireless communication, characterized in that it includes:

[0038] A first receiver receives a first information block; receives a first signal; and receives a first signal.

[0039] Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0040] The present application discloses a second node device for wireless communication, characterized in that it includes:

[0041] The second transmitter sends a first information block; sends a first signal; sends a first signal;

[0042] Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0043] As an embodiment, the method in this application has the following advantages:

[0044] -. The method in this application supports single TRP and multiple TRP situations, adopts more appropriate TCI states for different situations, and improves system reliability and transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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:

[0046] Figure 1 A flowchart showing a first information block, a first signaling and a first signal according to an embodiment of the present application is shown;

[0047] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0048] Figure 3 A schematic diagram showing a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application is shown;

[0049] 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;

[0050] Figure 5 A wireless signal transmission flow chart according to an embodiment of the present application is shown;

[0051] Figure 6 A schematic diagram of a target TCI state set according to an embodiment of the present application is shown;

[0052] Figure 7 A schematic diagram of a target TCI state set according to another embodiment of the present application is shown;

[0053] Figure 8 A schematic diagram showing a second information block, a third information block, and a fourth information block according to an embodiment of the present application is shown;

[0054] Fig. 9 A schematic diagram showing an association between a control channel candidate and the first control channel candidate according to an embodiment of the present application;

[0055] Fig.10 A schematic diagram showing an association between a control channel candidate and the first control channel candidate according to another embodiment of the present application;

[0056] Fig.11A schematic diagram showing an association between a control channel candidate and the first control channel candidate according to another embodiment of the present application;

[0057] Fig.12 A structural block diagram of a processing device in a first node device according to an embodiment of the present application is shown;

[0058] Fig.13 A structural block diagram of a processing device in a second node device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0059] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0060] Example 1

[0061] Embodiment 1 illustrates a flowchart of a first information block, a first signaling, and a first signal according to an embodiment of the present application, as shown in the attached figure. Figure 1 As shown in the attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0062] In embodiment 1, the first node in the present application receives a first information block in step 101; receives a first signaling in step 102; and receives a first signal in step 103; wherein the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0063] As an embodiment, the first information block is carried by higher layer signaling.

[0064] As an embodiment, the higher layer signaling includes RRC (Radio Resource Control) signaling.

[0065] As an embodiment, the higher layer signaling includes MAC CE signaling.

[0066] As an embodiment, the first information block includes an IE (Information Element) of RRC signaling.

[0067] As an embodiment, the first information block includes multiple IEs of RRC signaling.

[0068] As an embodiment, the first information block includes a partial field (Field) in an IE of RRC signaling.

[0069] As an embodiment, the first information block includes part or all of the fields in IE PDCCH-Config.

[0070] As an embodiment, the first information block includes the searchSpacesToAddModList field in the IE PDCCH-Config.

[0071] As an embodiment, the first information block includes IE SearchSpace.

[0072] As an embodiment, the first information block explicitly indicates S search space sets.

[0073] As an embodiment, the first information block implicitly indicates S search space sets.

[0074] As an embodiment, the first information block indicates at least one of the search space set index corresponding to the S search space sets, the associated CORESET, the control channel monitoring period and offset, the number of control channel alternatives for each CCE aggregation level (AggregationLevel), or the search space type.

[0075] As an embodiment, the first information block includes S information sub-blocks, and the S information sub-blocks are respectively used to indicate S search space sets.

[0076] As a sub-embodiment of the above embodiment, the S information sub-blocks respectively indicate the search space set index corresponding to the S search space sets, the associated CORESET, the control channel monitoring period and offset, the number of control channel alternatives for each CCE aggregation level (Aggregation Level), or at least one of the search space types.

[0077] As an embodiment, any information sub-block among the S information sub-blocks includes IE SearchSpace.

[0078] As an embodiment, S is not greater than 10.

[0079] As an embodiment, the S search space sets belong to the same bandwidth component (BandWidth Part, BWP).

[0080] As an embodiment, the S search space sets belong to the same carrier.

[0081] As an embodiment, the S search space sets belong to the same serving cell (Serving Cell).

[0082] As an embodiment, the phrase "the S search space sets belong to the same bandwidth component" means: the S search space sets belong to the same bandwidth component in the frequency domain.

[0083] As an embodiment, the phrase "the S search space sets belong to the same bandwidth component" means that the S search space sets are configured for the same bandwidth component.

[0084] As an embodiment, the first signal is PDSCH (Physical Downlink Shared Channel).

[0085] As an embodiment, the first signal is transmitted on PDSCH.

[0086] As an embodiment, the first signal carries a target bit block, and the target bit block includes a positive integer number of bits.

[0087] As an embodiment, the first signal includes at least one sub-signal, and one of the sub-signals includes a transmission of a target bit block.

[0088] As an embodiment, the first signal includes only one transmission of the target bit block.

[0089] As an embodiment, the first signal includes S sub-signals, each of the S sub-signals carries a target bit block, and S is a positive integer greater than 1.

[0090] As an embodiment, the first signal includes S sub-signals, and the S sub-signals respectively include S repetitions of the target bit block.

[0091] As an embodiment, when the first field in the first signaling indicates only one TCI state, any sub-signal in the first signal adopts the TCI state indicated by the first field in the first signaling.

[0092] As an embodiment, when the first field in the first signaling indicates two TCI states, at least two sub-signals in the first signal respectively adopt the two TCI states indicated by the first field in the first signaling.

[0093] As an embodiment, the target bit block includes a positive integer number of TBs (Transport Blocks).

[0094] As an embodiment, the target bit block includes a TB.

[0095] As an embodiment, the target bit block includes at least one CBG (Code Block Group).

[0096] As an embodiment, the target bit block sequentially undergoes CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to resource elements (Mapping to Resource Element), OFDM baseband signal generation (OFDM Baseband Signal Generation), and modulation upconversion (Modulation and Upconversion) to obtain the first signal.

[0097] As an embodiment, the target bit block sequentially undergoes CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to virtual resource blocks (Mapping to Virtual Resource Blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from Virtual to Physical Resource Blocks), OFDM baseband signal generation (OFDM Baseband Signal Generation), and modulation upconversion (Modulation and Upconversion) to obtain the first signal.

[0098] As an embodiment, the target bit block sequentially undergoes CRC addition (CRC Insertion), segmentation (Segmentation), coding block level CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), concatenation (Concatenation), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to resource elements (Mapping to Resource Element), OFDM baseband signal generation (OFDM Baseband Signal Generation), and modulation upconversion (Modulation and Upconversion) to obtain the first signal.

[0099] As an embodiment, the target bit block sequentially undergoes CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to resource elements (Mapping to Resource Element), OFDM baseband signal generation (OFDM Baseband Signal Generation), modulation and upconversion (Modulation and Upconversion) to obtain one of the sub-signals in the first signal.

[0100] As an embodiment, the target bit block undergoes CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to virtual resource blocks (Mapping to Virtual Resource Blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from Virtual to Physical Resource Blocks), OFDM baseband signal generation (OFDM Baseband Signal Generation), modulation and upconversion (Modulation and Upconversion) to obtain one of the sub-signals in the first signal.

[0101] As an embodiment, the target bit block undergoes CRC addition (CRC Insertion), segmentation (Segmentation), coding block level CRC addition (CRC Insertion), channel coding (Channel Coding), rate matching (Rate Matching), concatenation (Concatenation), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), precoding (Precoding), mapping to resource elements (Mapping to Resource Element), OFDM baseband signal generation (OFDM Baseband Signal Generation), modulation and upconversion (Modulation and Upconversion) to obtain one of the sub-signals in the first signal.

[0102] As an embodiment, the first signaling is physical layer signaling.

[0103] As an embodiment, the first signaling is dynamically configured.

[0104] As an embodiment, the first signaling is DCI (Downlink Control Information) signaling.

[0105] As an embodiment, the first signaling is transmitted on PDCCH (Physical Downlink Control CHannel).

[0106] As an embodiment, the first signaling schedules PDSCH (Physical Downlink Shared Channel) reception.

[0107] As an embodiment, the higher layer parameter configuration said first signaling includes said first domain.

[0108] As an embodiment, the higher layer parameter tci-PresentInDCI configures the first signaling to include the first domain.

[0109] As an embodiment, the first field is a Transmission configuration indication field.

[0110] As an embodiment, the specific definition of the Transmission configuration indication field refers to Section 7.3 of 3GPP TS 38.212.

[0111] As an embodiment, the specific definition of the higher layer parameter tci-PresentInDCI refers to Section 7.3 of 3GPP TS 38.212.

[0112] As an embodiment, the first field includes 3 bits.

[0113] As an embodiment, the first field includes one bit.

[0114] As an embodiment, the first field comprises more than one bit.

[0115] As an embodiment, the number of bits included in the first field is predefined.

[0116] As an embodiment, the number of bits included in the first field is configured by a higher layer parameter.

[0117] As an embodiment, the sentence "the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI (Transmission Configuration Indicator) state set" means that the first node uniquely determines the TCI state of the first signal from the target TCI state set based on the value of the first field in the first signaling.

[0118] As an embodiment, the sentence "the first field in the first signaling is used to indicate the TCI state of the first signal from the target TCI state set" means: the first field in the first signaling indicates the index of the TCI state of the first signal in the target TCI state set.

[0119] As an embodiment, the sentence "the first field in the first signaling is used to indicate the TCI state of the first signal from the target TCI state set" means: the value of the first field in the first signaling indicates the index of the TCI state of the first signal in the target TCI state set.

[0120] As an embodiment, the sentence "the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set" means: the value range of the first field includes N candidate values, any TCI state in the target TCI state set corresponds to one of the N candidate values, and the TCI state of the first signal is a TCI state in the target TCI state set corresponding to the value of the first field in the first signaling; any candidate value among the N candidate values ​​is a non-negative integer.

[0121] As an embodiment, the sentence "the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set" means: the value range of the first field includes N candidate values, the target TCI state set includes N1 TCI state subsets, any TCI state subset in the N1 TCI state subsets corresponds to one of the N candidate values, and the TCI state of the first signal belongs to a TCI state subset in the N1 TCI state subsets corresponding to the value of the first field in the first signaling; any TCI state subset in the N1 TCI state subsets includes at least one TCI state, N is a positive integer greater than 1, and N1 is a positive integer greater than 1 and not greater than N; any candidate value in the N candidate values ​​is a non-negative integer.

[0122] As an embodiment, the target TCI state set includes more than one TCI state.

[0123] As an embodiment, the TCI state of the first signal is a TCI state in the target TCI state set.

[0124] As an embodiment, the target TCI state set includes N1 TCI state subsets, and the TCI state of the first signal belongs to a TCI state subset among the N1 TCI state subsets; N1 is a positive integer greater than 1.

[0125] As an embodiment, the first control channel candidate is a physical downlink control channel (PDCCH, Physical Downlink Control Channel) candidate (Candidate).

[0126] As an embodiment, the first control channel candidate is a monitored physical downlink control channel candidate (Monitored PDCCH Candidate).

[0127] As an embodiment, the first control channel optionally occupies multiple REs (Resource Element).

[0128] As an embodiment, the first control channel optionally occupies one or more CCEs (Control Channel Element).

[0129] As an embodiment, the number of CCEs occupied by the first control channel candidate is equal to one of 1, 2, 4, 8, and 16.

[0130] As an embodiment, one CCE includes 9 REGs (Resource Element Groups), and one REG includes 4 REs.

[0131] As an embodiment, one CCE includes 6 REGs, and one REG includes 12 REs.

[0132] As an embodiment, the first search space set (Search Space Set) includes at least one control channel alternative.

[0133] As an embodiment, the first search space set includes multiple REs.

[0134] As an embodiment, the specific definition of the Search Space Set refers to Chapter 10 of 3GPP TS 38.213.

[0135] As an embodiment, the specific definition of the PDCCH candidate refers to Chapter 10 of 3GPP TS 38.213.

[0136] As an embodiment, the time-frequency resources occupied by the first signaling include all REs optionally occupied by the first control channel.

[0137] As an embodiment, the time-frequency resources occupied by the first signaling are composed of all REs optionally occupied by the first control channel.

[0138] As an embodiment, the sentence "whether the first condition set is satisfied is used to determine the target TCI state set" means: whether the first condition set is satisfied is used to determine which of M TCI state sets the target TCI state set is, where M is a positive integer greater than 1.

[0139] As an embodiment, the sentence "whether the first condition set is satisfied is used to determine the target TCI state set" means: whether the first condition set is satisfied is used to determine whether the target TCI state set is the third TCI state set.

[0140] As an embodiment, the sentence "whether the first condition set is satisfied is used to determine the target TCI state set" means: whether the first condition set is satisfied is used to determine whether the target TCI state set is the first TCI state set, the second TCI state set, or the third TCI state set.

[0141] As an embodiment, the sentence "whether the first condition set is met is used to determine which of the M TCI state sets the target TCI state set is" means: when the first condition set is not met, the target TCI state set is a TCI state set with a non-minimum index among the M TCI state sets; when the first condition set is met, the target TCI state set is a TCI state set with the smallest index among the M TCI state sets.

[0142] As an embodiment, the sentence "whether the first condition set is met is used to determine which of the M TCI state sets the target TCI state set is" means: when the first condition set is not met, the target TCI state set is the TCI state set with the smallest index among the M TCI state sets; when the first condition set is met, the target TCI state set is the TCI state set with a non-smallest index among the M TCI state sets.

[0143] As an embodiment, the sentence "whether the first condition set is satisfied is used to determine whether the target TCI state set is the third TCI state set" means: when the first condition set is not satisfied, the target TCI state set is not the third TCI state set; when the first condition set is satisfied, the target TCI state set is the third TCI state set.

[0144] As an embodiment, whether the first condition set is satisfied is used to determine whether there is a TCI state subset in the target TCI state set that includes more than one TCI state.

[0145] As an embodiment, when the first condition set is met, at least one TCI state subset in the target TCI state set includes more than one TCI state.

[0146] As an embodiment, when the first condition set is satisfied, any TCI state subset in the target TCI state set includes more than one TCI state.

[0147] As an embodiment, when the first condition set is not satisfied, at least one TCI state subset in the target TCI state set includes only one TCI state.

[0148] As an embodiment, when the first condition set is not satisfied, any TCI state subset in the target TCI state set includes only one TCI state.

[0149] As an embodiment, when there is a search space set among the S search space sets that is different from the first search space set and includes a control channel candidate associated with the first control channel candidate, the first condition set is satisfied.

[0150] As an embodiment, "there is a search space set in the S search space sets that is different from the first search space set and includes a control channel candidate associated with the first control channel candidate" is a necessary condition for the first condition set to be satisfied.

[0151] As an embodiment, "there is a search space set in the S search space sets that is different from the first search space set and includes a control channel candidate associated with the first control channel candidate" is a necessary and sufficient condition for the first condition set to be satisfied.

[0152] As an embodiment, "there is a search space set in the S search space sets that is different from the first search space set and includes a control channel candidate associated with the first control channel candidate" is a non-sufficient and necessary condition for the first condition set to be satisfied.

[0153] As an embodiment, when any control channel candidate in any search space set among the S search space sets that is different from the first search space set is not associated with the first control channel candidate, the first condition set is not satisfied.

[0154] As an embodiment, when any control channel candidate in the S search space sets that is different from the first control channel candidate is not associated with the first control channel candidate, the first condition set is not satisfied.

[0155] As an embodiment, the first condition includes that there is a search space set among the S search space sets that is different from the first search space set and includes a control channel alternative associated with the first control channel alternative; the first condition set includes the first condition.

[0156] As a sub-embodiment of the above embodiment, the first condition set only includes the first condition.

[0157] As a sub-embodiment of the above embodiment, the first condition set includes more than one condition, and the first condition is one of the more than one conditions.

[0158] As a sub-embodiment of the above embodiment, the first condition set includes more than one condition, and the first condition is one of the more than one conditions; when there is one condition in the first condition set that is satisfied, the first condition set is satisfied; when all conditions in the first condition set are not satisfied, the first condition set is not satisfied.

[0159] As a sub-embodiment of the above embodiment, the first condition set includes more than one condition, and the first condition is one of the more than one conditions; when all conditions in the first condition set are met, the first condition set is met; when there is one condition in the first condition set that is not met, the first condition set is not met.

[0160] Example 2

[0161] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 shown.

[0162] Attached Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet services 230. EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, EPS provides packet switching services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switching services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations towards UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive node), or some other suitable term. gNB 203 provides an access point to EPC / 5G-CN 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB 203 is connected to EPC / 5G-CN 210 via an S1 / NG interface.EPC / 5G-CN 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF214, S-GW (Service Gateway) 212 and P-GW (Packet Data Network Gateway) 213. MME / AMF / UPF211 is a control node that handles signaling between UE201 and EPC / 5G-CN 210. Generally, MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW212, which itself is connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. The Internet service 230 includes operator-compatible Internet protocol services, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0163] As an embodiment, the UE201 corresponds to the first node in the present application.

[0164] As an embodiment, the UE241 corresponds to the second node in the present application.

[0165] As an embodiment, the gNB203 corresponds to the second node in this application.

[0166] Example 3

[0167] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 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 with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and 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.).

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

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

[0170] As an embodiment, the first information block in the present application is generated in the RRC sublayer 306.

[0171] As an embodiment, the first information block in the present application is generated in the RRC sublayer 306.

[0172] As an embodiment, the first information block in the present application is generated in the MAC sublayer 302.

[0173] As an embodiment, the first information block in the present application is generated in the MAC sublayer 352.

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

[0175] As an embodiment, the first information block in the present application is generated by the PHY351.

[0176] Example 4

[0177] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0178] 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 .

[0179] 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.

[0180] 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 transmission from the first communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for 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 mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes 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.

[0181] 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 spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the 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 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0182] 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 the transmission from the first communication device 410 to the second communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the 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 spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0183] 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 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0184] As an embodiment, the first node in the present application includes the second communication device 450 , and the second node in the present application includes the first communication device 410 .

[0185] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a user equipment.

[0186] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a relay node.

[0187] As a sub-embodiment of the above embodiment, the first node is a relay node, and the second node is a user equipment.

[0188] As a sub-embodiment of the above embodiment, the first node is a user equipment, and the second node is a base station device.

[0189] As a sub-embodiment of the above embodiment, the first node is a relay node, and the second node is a base station device.

[0190] As a sub-embodiment of the above embodiment, the second communication device 450 includes: at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0191] As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller / processor; the at least one controller / processor is responsible for HARQ operation.

[0192] As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller / processor; the at least one controller / processor is responsible for error detection using positive acknowledgement (ACK) and / or negative acknowledgement (NACK) protocols to support HARQ operations.

[0193] 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; receives a first signaling; receives a first signal; wherein the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel candidate, the first control channel candidate belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel candidate associated with the first control channel candidate; whether the first condition set is satisfied is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0194] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0195] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block; receiving a first signaling; receiving a first signal; wherein the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is satisfied is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0196] As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in this application.

[0197] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 device at least: sends a first information block; sends a first signaling; sends a first signal; wherein the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel candidate, the first control channel candidate belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel candidate associated with the first control channel candidate; whether the first condition set is satisfied is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0198] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0199] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first information block; sending a first signaling; sending a first signal; wherein the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0200] As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

[0201] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block in the present application; and at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the first information block in the present application.

[0202] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second information block in the present application; and at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the second information block in the present application.

[0203] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the third information block in the present application; at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the third information block in the present application.

[0204] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the fourth information block in the present application; and at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the fourth information block in the present application.

[0205] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling in the present application; and at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the first signaling in the present application.

[0206] As an embodiment, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signal in the present application; and at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitting processor 471, the transmitting processor 416, the controller / processor 475, and the memory 476} is used to send the first signal in the present application.

[0207] As an embodiment, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller / processor 459, the memory 460, and the data source 467} is used to send the target information block in the present application; at least one of {the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller / processor 475, and the memory 476} is used to receive the target information block in the present application.

[0208] Example 5

[0209] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 middle, First Node U01 and Second Node N02 communicates with each other through the air interface. Figure 5 , the dotted box F1 is optional.

[0210] for First node U01 , receiving a first information block in step S10; receiving a second information block in step S11; receiving a third information block in step S12; receiving a fourth information block in step S13; receiving a first signaling in step S14; receiving a first signal in step S15; and sending a target information block in step S16;

[0211] for Second node N02 , sending a first information block in step S20; sending a second information block in step S21; sending a third information block in step S22; sending a fourth information block in step S23; sending a first signaling in step S24; sending a first signal in step S25; receiving a target information block in step S26;

[0212] In embodiment 5, the first information block is used to indicate S search space sets, where S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, and includes a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit. The second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; among the second information block, the third information block and the fourth information block, only the second information block and the third information block include a third field, the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0213] As an embodiment, the first information block is sent earlier than the second information block, the third information block and the fourth information block.

[0214] As an embodiment, the first information block is sent later than the second information block, the third information block and the fourth information block.

[0215] As an embodiment, the first information block is sent earlier than the second information block, the third information block or one of the fourth information blocks.

[0216] As an embodiment, the first information block is sent later than the second information block, the third information block or one of the fourth information blocks.

[0217] As an embodiment, the first information block is sent earlier than the second information block, the third information block or one of the fourth information blocks, and the first information block is sent later than the second information block, the third information block or one of the fourth information blocks.

[0218] As an embodiment, the target information block includes HARQ-ACK information for the first signal.

[0219] As an embodiment, the first signaling indicates the time-frequency resources occupied by the target information block.

[0220] As an embodiment, the one control channel candidate is any control channel candidate in any search space set among the S search space sets that is different from the first search space set.

[0221] As an embodiment, the one control channel alternative is the second control channel alternative.

[0222] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" means that the type of the search space set to which the one control channel candidate belongs is the same as the type of the first search space set.

[0223] As an embodiment, the type of a search space set is USS (UE-specific search space, user equipment-specific search space) or CSS (Common search space, common search space).

[0224] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" means that the DCI format of the search space set to which the one control channel candidate belongs is the same as the DCI format of the first search space set.

[0225] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" means that: the one control channel candidate and the first control channel candidate have the same aggregation level.

[0226] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that for each aggregation level, the number of control channel alternatives included in the search space set to which the one control channel alternative belongs is the same as the number of control channel alternatives included in the first search space set.

[0227] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" means that the one control channel candidate and the first control channel candidate have the same candidate index (candidateindex).

[0228] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" means that the one control channel candidate and the first control channel candidate have the same scrambling code.

[0229] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meaning: the first scrambling code sequence is the scrambling code sequence of the PDCCH carried by the first control channel alternative, the second scrambling code sequence is the scrambling code sequence of the PDCCH carried by the one control channel alternative, and the first scrambling code sequence and the second scrambling code sequence are the same.

[0230] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meaning: the first scrambling code sequence is the scrambling code sequence of the PDCCH carried by the first control channel alternative, the second scrambling code sequence is the scrambling code sequence of the PDCCH carried by the one control channel alternative, and the elements in the first scrambling code sequence and the elements in the second scrambling code sequence are the same one-to-one.

[0231] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meanings: the first scrambling code sequence is the scrambling code sequence of the PDCCH carried by the first control channel alternative, the second scrambling code sequence is the scrambling code sequence of the PDCCH carried by the one control channel alternative, and the initial value of the generator (Generator) of the first scrambling code sequence is the same as the initial value of the generator (Generator) of the second scrambling code sequence.

[0232] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meaning: the first node in the present application assumes that the one control channel alternative and the first control channel alternative have the same scrambling code.

[0233] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meanings: the first scrambling code sequence is the scrambling code sequence of the PDCCH carried by the first control channel alternative, the second scrambling code sequence is the scrambling code sequence of the PDCCH carried by the one control channel alternative, and the initial value of the generation register of the first scrambling code sequence is the same as the initial value of the generation register of the second scrambling code sequence.

[0234] As an embodiment, the sentence "the one control channel alternative and the first control channel alternative have the same scrambling code" includes the following meanings: the first scrambling code sequence is the scrambling code sequence of the PDCCH carried by the first control channel alternative, the second scrambling code sequence is the scrambling code sequence of the PDCCH carried by the one control channel alternative, and the first scrambling code sequence and the second scrambling code sequence are generated by an identical Gold sequence of length 31 using the same generator initial value.

[0235] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the size of the format of the DCI carried by the one control channel alternative is the same as the size of the format of the DCI carried by the first control channel alternative.

[0236] As an embodiment, the sentence "the size of the format of the DCI carried by the one control channel alternative is the same as the size of the format of the DCI carried by the first control channel alternative" includes the following meaning: the first node in the present application assumes that the size (Size) of the format (Format) of the DCI carried by the one control channel alternative is the same as the size (Size) of the format (Format) of the DCI carried by the first control channel alternative.

[0237] As an embodiment, the sentence "the size of the format of the DCI carried by the one control channel alternative is the same as the size of the format of the DCI carried by the first control channel alternative" includes the following meaning: the size (Size) of the DCI payload (Payload) carried by the one control channel alternative is the same as the size (Size) of the DCI payload (Payload) carried by the first control channel alternative.

[0238] As an embodiment, the sentence "the size of the format of the DCI carried by the one control channel alternative is the same as the size of the format of the DCI carried by the first control channel alternative" includes the following meaning: the number of bits included in the format of the DCI carried by the one control channel alternative is equal to the number of bits included in the format of the DCI carried by the first control channel alternative.

[0239] As an embodiment, the sentence "the size of the format of the DCI carried by the one control channel alternative is the same as the size of the format of the DCI carried by the first control channel alternative" includes the following meaning: the number of bits included in the DCI payload (Payload) carried by the one control channel alternative is equal to the number of bits included in the DCI payload (Payload) carried by the first control channel alternative.

[0240] As an embodiment, the phrase "the DCI carried by the first control channel alternative" includes the following meaning: the first node in the present application assumes the DCI carried by the first control channel alternative.

[0241] As an embodiment, the phrase "DCI carried by the first control channel candidate" includes the following meaning: the DCI actually carried by the first control channel candidate.

[0242] As an embodiment, the phrase "the DCI carried by the one control channel alternative" includes the following meaning: the first node in the present application assumes the DCI carried by the one control channel alternative.

[0243] As an embodiment, the phrase "the DCI carried by the one control channel candidate" includes the following meaning: the DCI actually carried by the one control channel candidate.

[0244] As an embodiment, the format (Format) of the DCI carried by the first control channel alternative is one of 0_1, 0_2, 0_3, 1_0, 1_1, 1_2, and 1_3, and the format (Format) of the DCI carried by the one control channel alternative is one of 0_1, 0_2, 0_3, 1_0, 1_1, 1_2, and 1_3.

[0245] As an embodiment, the format (Format) of the DCI carried by the first control channel alternative is one of all supported DCI formats.

[0246] As an embodiment, the format (Format) of the DCI carried by the first control channel candidate is one of the DCI formats supported by a user equipment-specific search space set (USS set, UE-Specific Search Set).

[0247] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the one control channel alternative and the first control channel alternative are associated with different control resource sets.

[0248] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that there are overlapping time domain resources between the time domain resources indicated by the DCI carried by the one control channel alternative and the time domain resources indicated by the DCI carried by the first control channel alternative.

[0249] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the time domain resources indicated by the DCI carried by the one control channel alternative and the time domain resources indicated by the DCI carried by the first control channel alternative both include the time domain resources occupied by the first signal.

[0250] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the DCI carried by the one control channel alternative and the DCI carried by the first control channel alternative are both used to schedule the first signal.

[0251] As an embodiment, the phrase "the DCI carried by the one control channel alternative and the DCI carried by the first control channel alternative are both used to schedule the first signal" includes the following meaning: the first node in the present application assumes that the DCI carried by the one control channel alternative and the DCI carried by the first control channel alternative are both used to schedule the first signal.

[0252] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are used to schedule the first signal.

[0253] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the first node in the present application assumes that the DCI carried by the one control channel alternative and the DCI carried by the first control channel alternative are used to schedule the first signal.

[0254] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are used to schedule the same transport block (TB, Transport Block).

[0255] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the first node in the present application assumes that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are used to schedule the same transmission block.

[0256] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are two repeated transmissions of the same DCI.

[0257] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the first node assumes that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are two repeated transmissions of the same DCI.

[0258] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are two independent scheduling information of the same transport block (TB, Transport Block).

[0259] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" includes the following meaning: the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are two transmissions of multiple-chance transmissions of scheduling information of the same transport block (TB, Transport Block).

[0260] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" includes the following meaning: the first node assumes that the DCI carried by the first control channel alternative and the DCI carried by the one control channel alternative are two transmissions of multiple opportunities for scheduling information of the same transmission block.

[0261] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" includes the following meaning: there is an association between the index of the first control channel candidate and the index of the one control channel candidate.

[0262] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" includes the following meaning: there is a mapping relationship between the index of the first control channel alternative and the index of the one control channel alternative.

[0263] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" includes the following meaning: there is a functional relationship between the index of the first control channel alternative and the index of the one control channel alternative.

[0264] As an embodiment, the phrase "a control channel candidate is associated with the first control channel candidate" includes the following meaning: the CCE occupied by the first control channel candidate and the CCE occupied by the one control channel candidate are associated with each other.

[0265] Example 6

[0266] Example 6 illustrates a schematic diagram of a target TCI state set, as shown in the attached figure. Figure 6 shown.

[0267] In Example 6, when the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

[0268] As an embodiment, the first control channel alternatively belongs to the first control resource set pool or the second control resource set pool.

[0269] As an embodiment, the control resource set associated with the first search space set belongs to the first control resource set pool or the second control resource set pool.

[0270] As an embodiment, when the first condition set is not met, the control resource set associated with the first search space set is used to determine whether the target TCI state set is the first TCI state set or the second TCI state set.

[0271] As an embodiment, when the first condition set is not met, the first search space set is related to which of the first control resource set pool and the first control resource set pool is used to determine whether the target TCI state set is the first TCI state set or the second TCI state set.

[0272] As an embodiment, when the first condition set is not met, whether the control resource set associated with the first search space set belongs to the first control resource set pool or the second control resource set pool is used to determine whether the target TCI state set is the first TCI state set or the second TCI state set.

[0273] As an embodiment, the phrase "a control resource set associated with a search space set" means that any control channel candidate in a search space set is composed of at least one CCE in the control resource set associated with the search space set.

[0274] As an embodiment, the phrase "a control resource set associated with a search space set" means: a control resource set associated with a search space set is used to determine the time-frequency resources occupied by the search space set in a monitoring occasion (Monitoring Occasion).

[0275] As an embodiment, the phrase "a control resource set associated with a search space set" means that the number of REs occupied by a search space set in a monitoring occasion (Monitoring Occasion) is the number of REs occupied by the control resource set associated with the search space set.

[0276] As an embodiment, the phrase "a control resource set associated with a search space set" means: the number of RBs occupied by a search space set in the frequency domain is the number of RBs occupied by the control resource set associated with the search space set in the frequency domain.

[0277] As an embodiment, the phrase "a control resource set associated with a search space set" includes: frequency domain resources occupied by a search space set are frequency domain resources occupied by a control resource set associated with the search space set.

[0278] As an embodiment, the phrase "a control resource set associated with a search space set" means that the number of symbols occupied by a control resource set associated with a search space set is used to determine the number of symbols occupied by the search space set in a detection opportunity.

[0279] As an embodiment, the phrase "a control resource set associated with a search space set" means that the number of symbols occupied by a search space set in a detection opportunity is the number of symbols occupied by the control resource set associated with the search space set.

[0280] As an embodiment, the phrase "a control resource set associated with a search space set" means that the configuration information of a search space set includes an index of the control resource set associated with the search space set.

[0281] As an embodiment, a monitoring occasion (Monitoring Occasion) includes a time period.

[0282] As an embodiment, a monitoring occasion (Monitoring Occasion) includes at least one symbol.

[0283] As an embodiment, one monitoring occasion (Monitoring Occasion) includes a time slot (slot).

[0284] As an embodiment, one monitoring occasion (Monitoring Occasion) includes a sub-slot (sub-slot).

[0285] As an embodiment, one monitoring occasion (Monitoring Occasion) includes one subframe (subframe).

[0286] As an embodiment, the first TCI state set and the second TCI state set are indicated by two MACCEs respectively.

[0287] As an embodiment, the first TCI state set includes at least one TCI state.

[0288] As an embodiment, the first TCI state set includes multiple TCI states.

[0289] As an embodiment, the first TCI state set includes at least one TCI state subset.

[0290] As an embodiment, the second TCI state set includes at least one TCI state.

[0291] As an embodiment, the second TCI state set includes multiple TCI states.

[0292] As an embodiment, the second TCI state set includes at least one TCI state subset.

[0293] As an embodiment, the third TCI state set includes at least one TCI state.

[0294] As an embodiment, the third TCI state set includes multiple TCI states.

[0295] As an embodiment, the third TCI state set includes at least one TCI state subset.

[0296] As an embodiment, at least one TCI state subset in the third TCI state set includes more than one TCI state.

[0297] As an embodiment, any TCI state subset in the third TCI state set includes more than one TCI state.

[0298] As an embodiment, any TCI state subset in the first TCI state set includes only one TCI state.

[0299] As an embodiment, any TCI state subset in the second TCI state set includes only one TCI state.

[0300] As an embodiment, at least one TCI state subset in the first TCI state set includes only one TCI state.

[0301] As an embodiment, at least one TCI state subset in the second TCI state set includes only one TCI state.

[0302] As an embodiment, a TCI state subset includes at least one TCI state.

[0303] As an embodiment, a TCI state subset includes one or two TCI states.

[0304] As an embodiment, the third TCI state set and the first TCI state set are indicated by different MAC CEs respectively.

[0305] As an embodiment, the third TCI state set, the first TCI state set and the second TCI state set are respectively indicated by three MAC CEs.

[0306] As an embodiment, the first TCI state set and the second TCI state set are respectively indicated by two MAC CEs with the same name.

[0307] As an embodiment, the third TCI state set and the first TCI state set are respectively indicated by two MAC CEs with different names.

[0308] As an embodiment, the first TCI state set and the second TCI state set are respectively indicated by two MAC CEs of the same type.

[0309] As an embodiment, the third TCI state set and the first TCI state set are respectively indicated by two different types of MAC CEs.

[0310] As an embodiment, two MAC CEs of the same type include the same field, and two MAC CEs of different types include at least one different field.

[0311] As an embodiment, two MAC CEs of the same type have the same function, and two MAC CEs of different types have different functions.

[0312] As an embodiment, two MAC CEs of the same type have the same application scenarios, and two MAC CEs of different types have different application scenarios.

[0313] As an embodiment, the third TCI state set is configured independently from the first TCI state set or the second TCI state set.

[0314] As an embodiment, the third TCI state set is configured independently from the first TCI state set and the second TCI state set.

[0315] As an embodiment, the first TCI state set and the second TCI state set are used to determine the third TCI state set.

[0316] As an embodiment, the third TCI state set is the intersection of the first TCI state set and the second TCI state set.

[0317] As an embodiment, at least one TCI state in the third TCI state set belongs to the first TCI state set, and at least one TCI state in the third TCI state set belongs to the second TCI state set.

[0318] As an embodiment, the first control resource set pool and the second control resource set pool both belong to the first bandwidth component, and the third TCI state set is common to all control resource sets in the first bandwidth component.

[0319] As an embodiment, the phrase "the third TCI state set is common to all control resource sets in the first bandwidth component" means that the third TCI state set is applied to all control resource sets in the first bandwidth component.

[0320] As an embodiment, the phrase "the third TCI state set is common to all control resource sets in the first bandwidth component" means that the third TCI state set is used for the PDSCH scheduled by the control signaling in any control resource set of the first bandwidth component.

[0321] As an embodiment, the phrase "the third TCI state set is common to all control resource sets in the first bandwidth component" means that the TCI state of the PDSCH scheduled by any control signaling in any control resource set of the first bandwidth component belongs to the third TCI state set.

[0322] As an embodiment, the first control resource set pool includes at least one control resource set, and the second control resource set pool includes at least one control resource set.

[0323] As an embodiment, the first control resource set pool and the second control resource set pool are respectively composed of control resource sets with different CORESETPoolIndex values.

[0324] As an embodiment, the first control resource set pool is composed of control resource sets whose configured CORESETPoolIndex parameter value is 0, and the second control resource set pool is composed of control resource sets whose configured CORESETPoolIndex parameter value is 1.

[0325] As an embodiment, the first control resource set pool is composed of control resource sets whose configured CORESETPoolIndex parameter value is 1, and the second control resource set pool is composed of control resource sets whose configured CORESETPoolIndex parameter value is 0.

[0326] As an embodiment, the first control resource set pool is composed of a control resource set whose configured CORESETPoolIndex parameter has a value of 0 and a control resource set whose CORESETPoolIndex parameter is not configured, and the second control resource set pool is composed of a control resource set whose configured CORESETPoolIndex parameter has a value of 1.

[0327] As an embodiment, the first control resource set pool is composed of a control resource set whose configured CORESETPoolIndex parameter has a value of 1, and the second control resource set pool is composed of a control resource set whose configured CORESETPoolIndex parameter has a value of 0 and a control resource set whose CORESETPoolIndex parameter is not configured.

[0328] As an embodiment, one of the control resource sets occupies at least one symbol in the time domain, and one of the control resource sets occupies at least one resource block (Resource Block, RB) in the frequency domain.

[0329] As an embodiment, one of the control resource sets includes multiple REs.

[0330] As an embodiment, a control resource set includes at least one CCE.

[0331] As an embodiment, a control resource set is a CORESET (Control ResourceSet).

[0332] As an embodiment, an index of the control resource set is configured by a controlResourceSetId parameter.

[0333] As an embodiment, a control resource set is configured by IE ControlResourceSet of RRC signaling.

[0334] As an embodiment, the specific definition of the CORESET refers to Chapter 10 of 3GPP TS 38.213.

[0335] As an embodiment, the specific definition of the IE ControlResourceSet refers to Section 6.3.2 of 3GPP TS 38.331.

[0336] As an embodiment, the symbol is a single carrier symbol.

[0337] As an embodiment, the symbol is a multi-carrier symbol.

[0338] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0339] As an embodiment, the multi-carrier symbol is a SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0340] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0341] As an embodiment, the multi-carrier symbol is a FBMC (Filter Bank Multi Carrier) symbol.

[0342] As an embodiment, the multi-carrier symbol includes a CP (Cyclic Prefix).

[0343] As an embodiment, the phrase "the first TCI state set is specific to the first control resource set pool" means: the first TCI state set is configured to the first control resource set pool; the phrase "the second TCI state set is specific to the second control resource set pool" means: the second TCI state set is configured to the second control resource set pool.

[0344] As an embodiment, the phrase "the first TCI state set is specific to the first control resource set pool" means that the first TCI state set is only applied to the first control resource set pool; the phrase "the second TCI state set is specific to the second control resource set pool" means that the second TCI state set is only applied to the second control resource set pool.

[0345] As an embodiment, the phrase "the first TCI state set is specific to the first control resource set pool" means that the first TCI state set is not applied to any control resource set outside the first control resource set pool; the phrase "the second TCI state set is specific to the second control resource set pool" means that the second TCI state set is not applied to any control resource set outside the second control resource set pool.

[0346] As an embodiment, the phrase "the first TCI state set is specific to the first control resource set pool" means that the first TCI state set is only used for PDSCH scheduled by control signaling in the first control resource set pool; the phrase "the second TCI state set is specific to the second control resource set pool" means that the second TCI state set is only used for PDSCH scheduled by control signaling in the second control resource set pool.

[0347] As an embodiment, the phrase "the first TCI state set is specific to the first control resource set pool" means that the TCI state of the PDSCH scheduled by any control signaling in the first control resource set pool belongs to the first TCI state set; the phrase "the second TCI state set is specific to the second control resource set pool" means that the TCI state of the PDSCH scheduled by any control signaling in the second control resource set pool belongs to the second TCI state set.

[0348] Example 7

[0349] Example 7 illustrates another schematic diagram of a target TCI state set, as shown in the attached figure. Figure 7 shown.

[0350] In Example 7, the first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

[0351] Example 8

[0352] Embodiment 8 illustrates a schematic diagram of a second information block, a third information block, and a fourth information block, as shown in the attached figure. Figure 8 shown.

[0353] In Embodiment 8, the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block and the fourth information block include a third field, the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0354] As an embodiment, the second information block indicates the index of each TCI state in the first TCI state set; the third information block indicates the index of each TCI state in the second TCI state set; and the fourth information block indicates the index of each TCI state in the third TCI state set.

[0355] As an embodiment, the name of the second information block includes TCI States Activation / Deactivation.

[0356] As an embodiment, the name of the second information block includes TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0357] As an embodiment, the name of the third information block includes TCI States Activation / Deactivation.

[0358] As an embodiment, the name of the third information block includes TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0359] As an embodiment, the name of the fourth information block includes TCI States Activation / Deactivation.

[0360] As an embodiment, the name of the fourth information block includes TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0361] As an embodiment, the second information block and the fourth information block are different MAC CEs.

[0362] As an embodiment, the second information block, the third information block and the fourth information block are three MACCEs.

[0363] As an embodiment, the second information block and the third information block are two MAC CEs with the same name.

[0364] As an embodiment, the second information block and the fourth information block are two MAC CEs with different names.

[0365] As an embodiment, the second information block and the third information block are two MAC CEs of the same type.

[0366] As an embodiment, the second information block and the fourth information block are two different types of MAC CEs.

[0367] As an embodiment, the second information block is TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0368] As an embodiment, the third information block is TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0369] As an embodiment, the fourth information block is Enhanced TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0370] As an embodiment, the specific definition of the TCI States Activation / Deactivation for UE-specific PDSCH MAC CE refers to Section 6.1.3 of 3GPP TS38.321.

[0371] As an embodiment, the specific definition of the Enhanced TCI States Activation / Deactivation for UE-specific PDSCH MAC CE refers to Section 6.1.3 of 3GPP TS38.321.

[0372] As an embodiment, the second field includes at least one bit.

[0373] As an embodiment, the second field includes 2 bits.

[0374] As an embodiment, the second field is a BWP ID field.

[0375] As an embodiment, the specific definition of the BWP ID field refers to Section 6.1.3 of 3GPP TS38.321.

[0376] As an embodiment, the first bandwidth component is a BWP.

[0377] As an embodiment, the phrase "the S search space sets all belong to the first bandwidth component" means: the S search space sets all belong to the first bandwidth component in the frequency domain.

[0378] As an embodiment, the phrase "the S search space sets all belong to the first bandwidth component" means that the S search space sets are all configured for the first bandwidth component.

[0379] As an embodiment, the third field includes at least one bit.

[0380] As an embodiment, the third field includes one bit.

[0381] As an embodiment, the third field comprises more than one bit.

[0382] As an embodiment, the third field is the CORESET Pool ID field.

[0383] As an embodiment, the specific definition of the CORESET Pool ID field refers to Section 6.1.3 of 3GPP TS38.321.

[0384] As an embodiment, the fourth information block does not include the third field.

[0385] As an embodiment, a control resource set pool includes at least one control resource set.

[0386] As an embodiment, the third field in the second information block indicates the index of the first control resource set pool, and the third field in the third information block indicates the index of the second control resource set pool.

[0387] As an embodiment, a value of the third field in the second information block is different from a value of the third field in the third information block.

[0388] As an embodiment, one of the value of the third field in the second information block and the value of the third field in the third information block is 0 and the other is 1.

[0389] Example 9

[0390] Embodiment 9 illustrates a schematic diagram of associating a control channel candidate with the first control channel candidate, as shown in the attached figure. Fig. 9 shown.

[0391] In embodiment 9, the first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

[0392] As an embodiment, the second search space set (Search Space Set) includes at least one control channel alternative.

[0393] As an embodiment, the second search space set includes multiple REs.

[0394] As an embodiment, the second control channel alternative is a physical downlink control channel (PDCCH, Physical Downlink Control Channel) alternative.

[0395] As an embodiment, the second control channel candidate is a monitored physical downlink control channel candidate (Monitored PDCCH Candidate).

[0396] As an embodiment, the second control channel optionally occupies multiple REs.

[0397] As an embodiment, the second control channel alternatively occupies one or more CCEs.

[0398] As an embodiment, the number of CCEs occupied by the second control channel alternative is equal to one of 1, 2, 4, 8, and 16.

[0399] As an embodiment, the first control channel candidate and the second control channel candidate occupy different CCEs respectively.

[0400] As an embodiment, the QCL parameters of the first control channel candidates are different from the QCL parameters of the second control channel candidates.

[0401] As an embodiment, the first TCI state is an alternative TCI state of the first control channel, and the second TCI state is an alternative TCI state of the second control channel.

[0402] As an embodiment, the first TCI state is used to determine the alternative antenna port QCL parameters of the first control channel, and the second TCI state is used to determine the alternative antenna port QCL parameters of the second control channel.

[0403] As an embodiment, the first TCI state is used to determine the antenna port QCL parameters of the PDCCH DMRS on the first control channel candidate, and the second TCI state is used to determine the antenna port QCL parameters of the PDCCH DMRS on the second control channel candidate.

[0404] As an embodiment, a first TCI state is used to monitor the first control channel alternative, and a second TCI state is used to monitor the second control channel alternative.

[0405] As an embodiment, the first TCI state is used to monitor the PDCCH DMRS on the first control channel candidate, and the second TCI state is used to monitor the PDCCH DMRS on the second control channel candidate.

[0406] As an embodiment, a first TCI state is used to monitor the first search space set, and a second TCI state is used to monitor the second search space set.

[0407] As an embodiment, a first TCI state is used to monitor a control resource set associated with the first search space set, and a second TCI state is used to monitor a control resource set associated with the second search space set.

[0408] As an embodiment, the type of the QCL parameter includes QCL-TypeD.

[0409] As an embodiment, the specific definition of the QCL-TypeD refers to Section 5.1.5 of 3GPP TS38.214.

[0410] As an embodiment, the QCL parameter includes a spatial reception parameter (Spatial Rx Parameter).

[0411] As an embodiment, the QCL parameters include a spatial domain filter (Spatial Domain Filter).

[0412] As an embodiment, the aggregation level is a CCE aggregation level (Aggregation Level, AL).

[0413] As an embodiment, the aggregation level (AL) includes at least one of 1, 2, 4, 8 or 16.

[0414] As an embodiment, the specific definition of the aggregation level refers to Chapter 10 of 3GPP TS38.213.

[0415] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of the control channel in the control resource set associated with the given search space set" means that the first node assumes that the transmitting antenna port of the control channel in the control resource set associated with the given search space set and one or more reference signals indicated by the given TCI state are QCL (Quasi Co-Located).

[0416] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of a control channel in a control resource set associated with a given search space set" means that the first node assumes that the DMRS antenna port associated with the control channel reception in the control resource set associated with the given search space set and one or more reference signals indicated by the given TCI state are QCL.

[0417] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of a control channel in a control resource set associated with a given search space set" includes: the first node receives a reference signal indicating a given TCI state with the same QCL parameters and monitors the control channel in the control resource set associated with the given search space set.

[0418] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of a control channel in a control resource set associated with a given search space set" includes: the first node uses the same spatial domain filter to receive a reference signal indicating a given TCI state and monitors the control channel in the control resource set associated with the given search space set.

[0419] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of a control channel in a control resource set associated with a given search space set" includes: the first node sends a reference signal indicating a given TCI state with the same QCL parameters and monitors the control channel in the control resource set associated with the given search space set.

[0420] As an embodiment, the sentence "a given TCI state is used to determine the antenna port QCL (Quasi Co-Location) information of a control channel in a control resource set associated with a given search space set" includes: the first node sends a reference signal indicating a given TCI state using the same spatial domain filter and monitors the control channel in the control resource set associated with the given search space set.

[0421] As an embodiment, the given TCI state is the first TCI state in the present application, and the given search space set is the first search space set in the present application.

[0422] As an embodiment, the given TCI state is the second TCI state in the present application, and the given search space set is the second search space set in the present application.

[0423] Example 10

[0424] Embodiment 10 illustrates another schematic diagram of associating a control channel candidate with the first control channel candidate, as shown in the attached figure. Fig.10 shown.

[0425] In embodiment 10, the phrase "a control channel candidate is associated with the first control channel candidate" means that: the first node device assumes that the one control channel candidate carries the same DCI as the first control channel candidate. The one control channel candidate is any control channel candidate in any search space set of the S search space sets that is different from the first search space set; or, the one control channel candidate is the second control channel candidate.

[0426] As an embodiment, the phrase "a control channel alternative is not associated with the first control channel alternative" means that the first node device cannot assume that the one control channel alternative carries the same DCI as the first control channel alternative.

[0427] Embodiment 11

[0428] Embodiment 11 illustrates another schematic diagram of associating a control channel candidate with the first control channel candidate, as shown in the attached figure. Fig.11 shown.

[0429] In Embodiment 11, the phrase "a control channel candidate is associated with the first control channel candidate" includes: the search space set to which the control channel candidate belongs is associated with the first search space set, and the index of the control channel candidate in the search space set to which the control channel candidate belongs is the same as the index of the first control channel candidate in the first search space set. The control channel candidate is any control channel candidate in any search space set among the S search space sets that is different from the first search space set; or, the control channel candidate is the second control channel candidate.

[0430] As an embodiment, the phrase "a control channel alternative is not associated with the first control channel alternative" means: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which it belongs is different from the index of the first control channel alternative in the first search space set.

[0431] As an embodiment, the phrase "a control channel candidate is not associated with the first control channel candidate" means that the search space set to which the one control channel candidate belongs is not associated with the first search space set.

[0432] As an embodiment, the index of the control channel candidate in the search space set to which it belongs is the index of the control channel candidate among all control channel candidates included in the search space set to which it belongs.

[0433] As an embodiment, the index of the control channel candidate in the search space set to which it belongs is the index of the control channel candidate in all control channel candidates of the aggregation level for the control channel candidate included in the search space set to which it belongs.

[0434] As an embodiment, the index of the first control channel alternative in the first search space set is the index of the first control channel alternative in all control channel alternatives included in the first search space set.

[0435] As an embodiment, the index of the first control channel alternative in the first search space set is the index of the first control channel alternative in all control channel alternatives of the aggregation level for the first control channel alternative included in the first search space set.

[0436] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is associated with the first search space set" means that for each aggregation level, the number of control channel alternatives included in the search space set to which the one control channel alternative belongs is the same as the number of control channel alternatives included in the first search space set.

[0437] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is not associated with the first search space set" means that there is at least one aggregation level, and the number of control channel alternatives included in the search space set to which the one control channel alternative belongs is different from the number of control channel alternatives included in the first search space set.

[0438] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is associated with the first search space set" means that the configuration information of the first search space set includes the index of the search space set to which the one control channel alternative belongs.

[0439] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is not associated with the first search space set" means that the configuration information of the first search space set does not include the index of the search space set to which the one control channel alternative belongs.

[0440] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is associated with the first search space set" means that a higher layer parameter indicates that the search space set to which the one control channel alternative belongs is associated with the first search space set.

[0441] As an embodiment, the phrase "the search space set to which the one control channel alternative belongs is not associated with the first search space set" means that there is no higher-layer parameter indicating that the search space set to which the one control channel alternative belongs is associated with the first search space set.

[0442] Example 12

[0443] Embodiment 12 illustrates a structural block diagram of a processing device in a first node device, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 In the embodiment, the first node device processing device 1200 includes a first receiver 1201. Optionally, the first node device processing device 1200 also includes a first transmitter 1202.

[0444] As an embodiment, the first node device 1200 is a user equipment.

[0445] As an embodiment, the first node device 1200 is a relay node.

[0446] As an embodiment, the first node device 1200 is a vehicle-mounted communication device.

[0447] As an embodiment, the first node device 1200 is a user equipment supporting V2X communication.

[0448] As an embodiment, the first node device 1200 is a relay node supporting V2X communication.

[0449] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least one of the antenna 452, receiver 454, multi-antenna reception processor 458, reception processor 456, controller / processor 459, memory 460 and data source 467.

[0450] As an embodiment, the first receiver 1201 includes the attached Figure 4At least the first five of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0451] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least the first four of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0452] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least the first three of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0453] As an embodiment, the first receiver 1201 includes the attached Figure 4 At least the first two of the antenna 452, receiver 454, multi-antenna receive processor 458, receive processor 456, controller / processor 459, memory 460 and data source 467.

[0454] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least one of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0455] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first five of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0456] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first four of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0457] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first three of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0458] As an embodiment, the first transmitter 1202 includes the attached Figure 4 At least the first two of the antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmit processor 468, controller / processor 459, memory 460 and data source 467.

[0459] The first receiver 1201 receives a first information block; receives a first signal; receives a first signal;

[0460] In embodiment 12, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, and includes a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0461] As an embodiment, when the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

[0462] As an embodiment, the first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

[0463] As an embodiment, the first receiver 1201 receives a second information block, receives a third information block, and receives a fourth information block; the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block, and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block, and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block, and the fourth information block include a third field, and the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0464] As an embodiment, the first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

[0465] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the first node device assumes that the one control channel alternative and the first control channel alternative carry the same DCI.

[0466] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which it belongs is the same as the index of the first control channel alternative in the first search space set.

[0467] As an embodiment, the first node device processing device 1200 includes:

[0468] A first transmitter 1202 sends a target information block;

[0469] The target information block is used to indicate whether the first signal is correctly received.

[0470] Embodiment 13

[0471] Embodiment 13 illustrates a structural block diagram of a processing device in a second node device, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the embodiment, the second node device processing device 1300 includes a second transmitter 1301. Optionally, the second node device processing device 1300 also includes a second receiver 1302.

[0472] As an embodiment, the second node device 1300 is a user equipment.

[0473] As an embodiment, the second node device 1300 is a base station.

[0474] As an embodiment, the second node device 1300 is a relay node.

[0475] As an embodiment, the second transmitter 1301 includes the attached Figure 4 At least one of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0476] As an embodiment, the second transmitter 1301 includes the attached Figure 4 At least the first five of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0477] As an embodiment, the second transmitter 1301 includes the attached Figure 4 At least the first four of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0478] As an embodiment, the second transmitter 1301 includes the attached Figure 4 At least the first three of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0479] As an embodiment, the second transmitter 1301 includes the attached Figure 4At least the first two of the antenna 420, transmitter 418, multi-antenna transmit processor 471, transmit processor 416, controller / processor 475 and memory 476.

[0480] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least one of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475 and the memory 476.

[0481] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first five of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller / processor 475 and the memory 476.

[0482] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller / processor 475 and the memory 476.

[0483] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first three of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller / processor 475 and the memory 476.

[0484] As an embodiment, the second receiver 1302 includes the attached Figure 4 At least the first two of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller / processor 475 and the memory 476.

[0485] The second transmitter 1301 sends a first information block; sends a first signal; sends a first signal;

[0486] In embodiment 13, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set in the S search space sets that is different from the first search space set, including a control channel alternative associated with the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

[0487] As an embodiment, when the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

[0488] As an embodiment, the first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

[0489] As an embodiment, the second transmitter 1301 sends a second information block, sends a third information block, and sends a fourth information block; the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block, and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block, and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block, and the fourth information block include a third field, and the third field indicates a control resource set pool; the third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

[0490] As an embodiment, the first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

[0491] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means that the recipient of the first signaling assumes that the one control channel alternative carries the same DCI as the first control channel alternative.

[0492] As an embodiment, the phrase "a control channel alternative is associated with the first control channel alternative" means: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which it belongs is the same as the index of the first control channel alternative in the first search space set.

[0493] As an embodiment, the second node device processing device 1300 includes:

[0494] A second receiver 1302 receives a target information block;

[0495] The target information block is used to indicate whether the first signal is correctly received.

[0496] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first node device in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The second node device in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The user equipment or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication devices. The base station equipment or base station or network side equipment in this application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNB, gNB, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations and other wireless communication equipment.

[0497] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node used for wireless communication, characterized in that: include: A first receiver receives a first information block; receiving a first signaling; receiving a first signal, wherein the first signal is a PDSCH; Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes that there is a search space set different from the first search space set in the S search space sets, including a control channel alternative associated with the first control channel alternative, and the one control channel alternative associated with the first control channel alternative includes that the first node device assumes that the one control channel alternative carries the same DCI as the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

2. The first node according to claim 1, characterized in that: When the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

3. The first node according to claim 2, characterized in that: The first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

4. The first node according to claim 2 or 3, characterized in that: The first receiver receives a second information block, a third information block, and a fourth information block; the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block, and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block, and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block, and the fourth information block include a third field, and the third field indicates a control resource set pool; The third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

5. The first node according to any one of claims 1 to 3, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

6. The first node according to claim 4, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

7. The first node according to any one of claims 1 to 3, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

8. The first node according to claim 4, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

9. The first node according to claim 5, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

10. A second node used for wireless communication, characterized in that: include: A second transmitter sends a first information block; Sending a first signaling; Sending a first signal, where the first signal is a PDSCH; Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes: there is a search space set different from the first search space set in the S search space sets, including a control channel alternative associated with the first control channel alternative, and the one control channel alternative is associated with the first control channel alternative, including that the receiver of the first signaling assumes that the one control channel alternative carries the same DCI as the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

11. The second node according to claim 10, characterized in that: When the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

12. The second node according to claim 11, characterized in that: The first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

13. The second node according to any one of claims 11 to 12, characterized in that: The second transmitter sends a second information block, a third information block and a fourth information block; the second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block and the fourth information block include a third field, and the third field indicates a control resource set pool; The third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

14. The second node according to any one of claims 10 to 12, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

15. The second node according to claim 13, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

16. The second node according to any one of claims 10 to 12, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

17. The second node according to claim 13, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

18. The second node according to claim 14, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

19. The second node according to claim 15, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

20. A method in a first node for wireless communication, characterized in that: include: receiving a first information block; receiving a first signaling; receiving a first signal, wherein the first signal is a PDSCH; Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, and the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes: there is a search space set different from the first search space set in the S search space sets, including a control channel alternative associated with the first control channel alternative, and the one control channel alternative associated with the first control channel alternative includes the first node device assuming that the one control channel alternative carries the same DCI as the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

21. The method in the first node according to claim 20, characterized in that: When the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

22. The method in the first node according to claim 21, characterized in that: The first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

23. The method in the first node according to any one of claims 21 to 22, characterized in that: include: receiving a second information block, receiving a third information block, and receiving a fourth information block; The second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block, and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block, and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block, and the fourth information block include a third field, and the third field indicates a control resource set pool; The third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

24. The method in the first node according to any one of claims 20 to 22, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

25. The method in the first node according to claim 23, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

26. The method in the first node according to any one of claims 20 to 22, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

27. The method in the first node according to claim 23, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

28. The method in the first node according to claim 24, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

29. A method in a second node for wireless communication, characterized in that: include: Sending a first information block; Sending a first signaling; Sending a first signal, where the first signal is a PDSCH; Among them, the first information block is used to indicate S search space sets, S is a positive integer greater than 1; the first signaling includes a first field, and the first field in the first signaling is used to indicate the TCI state of the first signal from a target TCI state set; the first signaling occupies a first control channel alternative, the first control channel alternative belongs to a first search space set, and the first search space set is one of the S search space sets; the first condition set includes: there is a search space set different from the first search space set in the S search space sets, including a control channel alternative associated with the first control channel alternative, and the one control channel alternative is associated with the first control channel alternative, including that the receiver of the first signaling assumes that the one control channel alternative carries the same DCI as the first control channel alternative; whether the first condition set is met is used to determine the target TCI state set; the target TCI state set includes at least one TCI state; the first field includes at least one bit.

30. The method in the second node according to claim 29, characterized in that: When the first condition set is not met, the target TCI state set is the first TCI state set or the second TCI state set; when the first condition set is met, the target TCI state set is the third TCI state set; the first TCI state set is specific to the first control resource set pool, and the second TCI state set is specific to the second control resource set pool.

31. The method in the second node according to claim 30, characterized in that: The first condition set is not met; when the control resource set associated with the first search space set belongs to the first control resource set pool, the target TCI state set is the first TCI state set; when the control resource set associated with the first search space set belongs to the second control resource set pool, the target TCI state set is the second TCI state set.

32. The method in the second node according to any one of claims 30 to 31, characterized in that: include: sending a second information block, sending a third information block, and sending a fourth information block; The second information block indicates the first TCI state set, the third information block indicates the second TCI state set, and the fourth information block indicates the third TCI state set; the second information block, the third information block, and the fourth information block all include a second field, the second field indicates a bandwidth component, the second field in the second information block, the second field in the third information block, and the second field in the fourth information block all indicate a first bandwidth component; the S search space sets all belong to the first bandwidth component; only the second information block and the third information block among the second information block, the third information block, and the fourth information block include a third field, and the third field indicates a control resource set pool; The third field in the second information block indicates the first control resource set pool, and the third field in the third information block indicates the second control resource set pool.

33. The method in the second node according to any one of claims 29 to 31, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

34. The method in the second node according to claim 32, characterized in that: The first control channel alternative is associated with the second control channel alternative, the second control channel alternative belongs to a second search space set, and the second search space set is a search space set other than the first search space set among the S search space sets; for each aggregation level, the number of control channel alternatives included in the first search space set is the same as the number of control channel alternatives included in the second search space set; the first TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the first search space set, and the second TCI state is used to determine the antenna port QCL parameters of the control channel in the control resource set associated with the second search space set.

35. The method in the second node according to any one of claims 29 to 31, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

36. The method in the second node according to claim 32, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

37. The method in the second node according to claim 33, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

38. The method in the second node according to claim 34, characterized in that: The one control channel alternative is associated with the first control channel alternative including: the search space set to which the one control channel alternative belongs is associated with the first search space set, and the index of the one control channel alternative in the search space set to which the one control channel alternative belongs is the same as the index of the first control channel alternative in the first search space set.

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