CN114205061A

CN114205061A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN114205061A
Application number: CN202010984848.8A
Authority: CN
Inventors: 刘铮; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-03-18
Anticipated expiration: 2040-09-18
Also published as: CN114205061B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A node receives a first information block and monitors M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives; the first control channel alternative is one of the M1 control channel alternatives, and the second control channel alternative is one different from the first control channel alternative; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used for determining the target association rule. The application improves the PDCCH performance.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus for multiple carriers in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of multiple application scenarios, a New air interface technology (NR, New Radio) (or 5G) is determined to be studied in 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 guilds, and standardization Work on NR starts after passing through WI (Work Item) of the New air interface technology (NR, New Radio) in 3GPP RAN #75 guilds.

In the new air interface technology, Multiple antenna (such as Multiple Input Multiple Output (MIMO), Multiple Transmission and Reception node (TRP) and Multiple panel (panel)) technology is an important component. To be able to adapt to more diverse application scenarios and to meet higher demands, multi-antenna communication is supported more robust and more spectrally efficient and more application scenarios over the 3GPP RAN #86 second meeting with further enhanced WI of MIMO under NR.

Disclosure of Invention

In a multi-antenna system, such as a multi-Transmission Reception node (TRP) communication, the same channel or signal may be transmitted by multiple TRP nodes to enhance the robustness of Transmission. Multi-transmit receive node transmissions for data channels are supported in release 16(Rel-16), and 3GPP plans multi-transmit receive node transmissions for control channels introduced in release 17 (Rel-17).

The present application discloses a solution to the transmission problem of control channels in multi-antenna systems. It should be noted that, in the description of the present application, only a multi-antenna system, in particular, a multi-transceiver transmission system is taken as a typical application scenario or example; the application is also applicable to other scenarios facing similar problems (such as scenarios with higher requirements on robustness or coverage of control channels, or scenarios requiring PDCCH association in addition to multi-transmission and reception node transmission, including but not limited to coverage enhancement system, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) network, car networking, etc.), and can achieve similar technical effects. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to those of a multi-antenna system) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.

The application discloses a method in a first node device for wireless communication, which is characterized by comprising the following steps:

receiving a first information block;

monitoring M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1;

wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

As an embodiment, the target association rule is determined by at least one of a position of the time-frequency resource occupied by the first control channel Candidate in the time-frequency domain, a position of the time-frequency resource occupied by the second control channel Candidate in the time-frequency domain, and a target index, so that association mapping between associated PDCCH candidates (candidates) is changed according to the time-frequency position, and when frequency selectivity exists in the candidates, a frequency diversity gain is provided for DCI transmission, thereby improving the DCI transmission robustness.

As an embodiment, the target association rule is determined by at least one of a position of the time-frequency resource occupied by the first control channel Candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel Candidate in the time-frequency domain, and a target index, so that association mapping between associated PDCCH candidates (candidates) may be changed according to a cell ID, a UE ID, a CORESET ID, a search space set ID, or the like, interference may be randomized, and performance of DCI transmission may be further improved.

According to an aspect of the application, the method is characterized in that the quasi co-location of the reference signal comprised by the first control channel candidate and the quasi co-location of the reference signal comprised by the second control channel candidate are different.

According to an aspect of the present application, the above method is characterized in that each CCE occupied by the first control channel candidate belongs to a first control resource set, and the CCE occupied by the second control channel candidate belongs to a second control resource set; the index of the control resource set resource pool where the first control resource set is provided and the index of the control resource set resource pool where the second control resource set is provided are not equal.

As an embodiment, by using that the index of the control resource set resource pool provided by the first control resource set is not equal to the index of the control resource set resource pool provided by the second control resource set, different TRP alternative configurations for two associated PDCCHs are implemented, thereby supporting TRP transmission on a PDCCH, providing a spatial diversity gain for the PDCCH, and ensuring backward compatibility.

According to an aspect of the present application, the above method is characterized in that the first CCE is a CCE occupied by the second control channel candidate, the first CCE includes L1 REGs, mapping of the first CCE to the L1 REGs employs non-interleaved mapping, and L1 is a positive integer greater than 1.

As an embodiment, the mapping of the first CCE to the L1 REGs employs non-interleaved mapping to avoid adverse effects of frequency diversity due to interleaving on association mapping of two PDCCH alternatives, so that the association mapping of two PDCCH alternatives can make full use of frequency selectivity.

According to an aspect of the present application, the method is characterized in that the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding.

As an embodiment, the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG-bound, which avoids the limitation of associated mapping transformation gains of the two PDCCH candidates due to joint channel coding of the entire bandwidth, so that the associated mapping of the two PDCCH candidates can fully utilize different channel conditions, and the performance of the DCI is improved.

According to an aspect of the present application, the method is characterized in that the first node assumes that the first control channel candidate carries a first DCI, and the first node assumes that the second control channel candidate carries a second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

According to an aspect of the application, the above method is characterized in that the first control channel alternative belongs to a first alternative set, the first alternative set comprising a positive integer number of control channel alternatives larger than 1; the second control channel candidate belongs to a second candidate set, the second candidate set includes a positive integer number of control channel candidates greater than 1, and the first candidate set and the second candidate set are different; the control channel alternatives comprised by the first alternative set are associated to the control channel alternatives comprised by the second alternative set according to the target association rule.

According to an aspect of the application, the above method is characterized in that the index of the first control channel alternative in the first alternative set is equal to a first index, and the index of the second control channel alternative in the second alternative set is equal to a second index; the first index is a non-negative integer and the second index is a non-negative integer; the number of control channel alternatives included in the second alternative set is equal to a target number; the first index and the pseudorandom sequence are used together to determine a first parameter, and the remainder of the first parameter divided by the target number is used to determine the second index.

As an embodiment, the mapping association relationship between two PDCCH candidates is adjusted according to the pseudo-random sequence, so that sufficient randomization can be provided for PDCCH transmission, and the randomization can be applied between cells, between users, and between different time-frequency positions, thereby avoiding occurrence of persistent strong interference and ensuring transmission performance of the PDCCH.

According to one aspect of the application, the method described above is characterized by comprising:

transmitting the second information block;

wherein the second information block is used to indicate whether the first node supports at least one of the type of association between the second control channel alternative and the first control channel alternative, the second control channel alternative supported by the first node, and the first control channel alternative.

The application discloses a method in a second node device for wireless communication, which is characterized by comprising the following steps:

transmitting a first information block;

determining M1 control channel alternatives, the first information block being used to indicate the M1 control channel alternatives, the M1 being a positive integer greater than 1;

According to an aspect of the present application, the method is characterized in that the M1 watchers of the control channel alternatives assume that the first control channel alternative carries a first DCI, and the M1 watchers of the control channel alternatives assume that the second control channel alternative carries a second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

receiving a second information block;

wherein the second information block is used to indicate whether the M1 monitors of control channel alternatives support at least one of the type of association associated between the second control channel alternative and the first control channel alternative, the second control channel alternative and the first control channel alternative supported by the M1 monitors of control channel alternatives.

The application discloses a first node device for wireless communication, characterized by comprising:

a first transceiver that receives a first information block;

a first receiver to monitor M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1;

The present application discloses a second node device for wireless communication, comprising:

a second transceiver for transmitting the first information block;

a first transmitter to determine M1 control channel alternatives, the first information block being used to indicate the M1 control channel alternatives, the M1 being a positive integer greater than 1;

As an example, the method in the present application has the following advantages:

by adopting the method in the application, the association mapping between the associated PDCCH candidates (Candidate) is changed according to the time-frequency position, and when the candidates have frequency selectivity, frequency diversity gain is provided for DCI transmission, so that the DCI transmission robustness is improved;

by adopting the method in the present application, the association mapping between the associated PDCCH candidates (candidates) may be changed according to the cell ID or UE ID or CORESET ID or search space set ID, etc., so as to randomize the interference and further improve the DCI transmission performance;

by adopting the method in the application, different TRPs are alternatively configured for two associated PDCCHs, so that the TRPs are supported to transmit the PDCCHs, the space diversity gain is provided for the PDCCHs, and the backward compatibility is ensured;

by adopting the method in the application, the adverse effect of frequency diversity caused by interleaving on the association mapping of the two PDCCH candidates is avoided, so that the association mapping of the two PDCCH candidates can fully utilize the frequency selectivity;

by adopting the method in the application, the limitation of the joint channel coding of the whole bandwidth on the associated mapping transformation gain of the two PDCCH candidates is avoided, so that the associated mapping of the two PDCCH candidates can fully utilize different channel conditions, and the DCI performance is improved;

by adopting the method in the application, the mapping association relation between the two PDCCH alternatives is adjusted according to the pseudo-random sequence, so that sufficient and effective randomization can be provided for PDCCH transmission, and the randomization can be applied among cells, users and different time-frequency positions, thereby avoiding the occurrence of continuous strong interference and ensuring the transmission performance of the PDCCH.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of a first information block and M1 control channel alternatives according to one embodiment of the present application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first node device and a second node device according to an embodiment of the present application;

FIG. 5 shows a wireless signal transmission flow diagram according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a relationship between quasi co-siting of a first control channel alternative and quasi co-siting of a second control channel alternative according to an embodiment of the application;

FIG. 7 shows a schematic diagram of a relationship between a first set of control resources and a second set of control resources according to an embodiment of the present application;

fig. 8 shows a schematic diagram of the relationship between a first CCE and L1 REGs according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of precoding granularity according to an embodiment of the application;

fig. 10 shows a schematic diagram of a relationship between a first DCI and a second DCI according to one embodiment of the present application;

FIG. 11 shows a schematic diagram of a relationship between a first set of alternatives and a second set of alternatives according to an embodiment of the application;

FIG. 12 shows a schematic diagram of a relationship between a first index and a second index according to an embodiment of the present application;

FIG. 13 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;

fig. 14 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of a first information block and M1 control channel alternatives according to one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 1, a first node device in the present application receives a first information block in step 101; a first node device in the present application monitors M1 control channel alternatives in step 102, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

As an embodiment, the first information block is transmitted over an air interface.

As an embodiment, the first information block is transmitted over a wireless interface.

As an embodiment, the first information block includes all or part of a higher layer signaling.

As an embodiment, the first information block includes all or part of a physical layer signaling.

As an embodiment, the first information block includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the first information block includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the first Information Block includes all or part of a System Information Block (SIB).

As an embodiment, the first information block is transmitted through a DL-SCH (Downlink Shared Channel).

As an embodiment, the first information block is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first information block is Cell Specific.

As an embodiment, the first information block is user equipment-specific (UE-specific).

As one embodiment, the first information block is configured Per Serving Cell (Per Serving Cell).

As an embodiment, the first information block includes a Field (Field) of dci (downlink Control information) signaling.

As an embodiment, the first Information block includes more than 1 sub-Information block, and each sub-Information block included in the first Information block is an IE (Information Element) or a Field (Field) in RRC signaling to which the first Information block belongs; one sub information block comprised by the first information block is used to indicate the M1 control channel alternatives.

As an embodiment, the first Information block includes a field "coresetpoilndex" in an IE (Information Element ) "ControlResourceSet" in RRC signaling.

As an embodiment, the first Information block includes all or part of fields in an IE (Information Element) PDCCH-Config in RRC signaling.

As an embodiment, the first Information block includes all or part of fields in an IE "ControlResourceSet" in an IE (Information Element ) in RRC signaling "PDCCH-Config".

As an embodiment, the first Information block includes all or part of fields (fields) in an IE (Information Element) "SearchSpace" in RRC signaling.

As an example, the above sentence "the first information block is used to determine the M1 control channel alternatives" includes the following meanings: the first information block is used by the first node device in this application to determine the M1 control channel alternatives.

As an example, the above sentence "the first information block is used to determine the M1 control channel alternatives" includes the following meanings: the first information block is used to explicitly indicate the M1 control channel alternatives.

As an example, the above sentence "the first information block is used to determine the M1 control channel alternatives" includes the following meanings: the first information block is used to implicitly indicate the M1 control channel alternatives.

As an embodiment, "the first information block is used to determine the M1 control channel alternatives" includes the following meaning: the first information block is used to determine N1 control channel alternatives, any one of the M1 control channel alternatives being one of the N1 control channel alternatives, the N1 being a positive integer greater than the M1; the M1 is not greater than a first threshold used to determine the M1 control channel alternatives from the N1 control channel alternatives, the first threshold being a positive integer.

As an embodiment, the Monitoring (Monitoring) of the M1 control channel alternatives is Decoding (Decoding) of the M1 control channel alternatives.

As an embodiment, the Monitoring (Monitoring) of the M1 control channel candidates is Blind Decoding (Blind Decoding) of the M1 control channel candidates.

As an embodiment, the Monitoring (Monitoring) of the M1 control channel alternatives is decoding (decoding) and CRC checking of the M1 control channel alternatives.

As an embodiment, the Monitoring (Monitoring) of the M1 control channel candidates is CRC check on decoding (decoding) and RNTI (Radio Network Temporary Identity) scrambled of the M1 control channel candidates.

As an embodiment, the Monitoring (Monitoring) of the M1 Control channel alternatives is Decoding (Decoding) of the M1 Control channel alternatives based on the monitored dci (downlink Control information) format (s)).

As an embodiment, the Monitoring (Monitoring) of the M1 Control channel alternatives is Decoding (Decoding) of the M1 Control channel alternatives based on one or more formats (s)) of the monitored dci (downlink Control information).

As an embodiment, the number of CCEs (Control Channel elements) occupied by any one of the M1 Control Channel alternatives is equal to one of 1,2, 4, 8, and 16.

As an embodiment, any one of the M1 Control Channel candidates is a Physical Downlink Control Channel (PDCCH) Candidate (Candidate).

As an embodiment, any one of the M1 control channel candidates is a Monitored physical downlink control channel Candidate (Monitored PDCCH Candidate).

As an embodiment, any one of the M1 Control Channel candidates is a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) adopting one or more DCI formats.

As an embodiment, any one of the M1 Control Channel candidates is a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) adopting one or more DCI Payload sizes (Payload sizes).

As an embodiment, any one of the M1 control channel alternatives is a time-frequency resource set carrying DCI of a specific one or more formats.

As an embodiment, the M1 control channel candidates include two control channel candidates occupying the same time-frequency resource.

As an embodiment, the CCEs occupied by any two of the M1 control channel alternatives are not the same.

As an embodiment, two control channel alternatives out of the M1 control channel alternatives occupy the same CCE set.

As an embodiment, the characteristic attributes of any two of the M1 control channel candidates are different, where the characteristic attributes include at least one of occupied CCEs, Scrambling codes (Scrambling) used, and corresponding DCI Payload sizes (Payload sizes).

As an embodiment, the first control channel alternative is any one of the M1 control channel alternatives.

As an embodiment, the first control channel alternative is a specific one of the M1 control channel alternatives.

As an embodiment, the second control channel alternative is one of the M1 control channel alternatives.

As an embodiment, the second control channel alternative is one control channel alternative other than the M1 control channel alternatives.

As an embodiment, the CCE occupied by the first control channel candidate is different from the CCE occupied by the second control channel candidate.

As an embodiment, there is one CCE occupied by both the first control channel alternative and the second control channel alternative.

As an embodiment, there is no CCE occupied by both the first control channel alternative and the second control channel alternative.

As an embodiment, there is one CCE occupied only by one of said first control channel alternative or said second control channel alternative.

As an embodiment, the CCE occupied by the first control channel candidate and the CCE occupied by the second control channel candidate are all the same, and the first node device assumes that DCI formats of DCIs carried by the first control channel candidate and the second control channel candidate are different.

As an embodiment, the CCE occupied by the first control channel candidate and the CCE occupied by the second control channel candidate are all the same, and the first node device assumes that DCI load (Payload) sizes (sizes) of DCIs carried by the first control channel candidate and the second control channel candidate are different.

As an embodiment, the characteristic attribute of the first control channel candidate is different from that of the second control channel candidate, and the characteristic attribute includes at least one of an occupied CCE, an adopted Scrambling code (Scrambling), and a corresponding DCI Payload Size (Payload Size).

As an embodiment, the first control channel candidate and the second control channel candidate belong to the same Search Space Set (Search Space Set).

As an embodiment, the first control channel candidate and the second control channel candidate respectively belong to two different Search Space sets (Search Space sets).

As an embodiment, a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the first Control channel candidate belongs is the same as a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the second Control channel candidate belongs.

As an embodiment, a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the first Control channel candidate belongs is different from a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the second Control channel candidate belongs.

As an embodiment, an index of a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the first Control channel candidate belongs is equal to an index of a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the second Control channel candidate belongs.

As an embodiment, an index of a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the first Control channel candidate belongs is not equal to an index of a Control Resource Set (CORESET, Control Resource Set) corresponding to a Search Space Set (Search Space Set) to which the second Control channel candidate belongs.

As an embodiment, the number of CCEs occupied by the first control channel alternative is equal to the number of CCEs occupied by the second control channel alternative.

As an embodiment, the number of CCEs occupied by the first control channel alternative and the number of CCEs occupied by the second control channel alternative are not equal.

As an embodiment, the Aggregation Level (AL, Aggregation Level) of the first control channel alternative and the Aggregation Level (AL, Aggregation Level) of the second control channel alternative are equal.

As an embodiment, the Aggregation Level (AL, Aggregation Level) of the first control channel alternative and the Aggregation Level (AL, Aggregation Level) of the second control channel alternative are not equal.

As an embodiment, the first node device in this application assumes that a load (Payload) of DCI carried by the first control channel candidate is the same as a load (Payload) of DCI carried by the second control channel candidate.

As an embodiment, the first node device in this application cannot assume that a load (Payload) of DCI carried by the first control channel alternative is the same as a load (Payload) of DCI carried by the second control channel alternative.

As an embodiment, the first node device in this application assumes that Soft Combining (Soft Combining) is possible between the first control channel candidate and the second control channel candidate.

As an embodiment, the first node device in this application cannot assume that Soft Combining (Soft Combining) is possible between the first control channel candidate and the second control channel candidate.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the first node device in the present application can assume (assign) an association between the second control channel alternative and the first control channel alternative.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: soft Combining (Soft Combining) is enabled between the first control channel candidate and the second control channel candidate.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the load (Payload) of the DCI carried by the first control channel alternative is the same as the load (Payload) of the DCI carried by the second control channel alternative.

As an example, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims refers to claim 6 in the present application.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control channel candidate and the DCI carried by the second control channel candidate are used to schedule the same signal or channel.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control Channel candidate and the DCI carried by the second control Channel candidate are used to schedule the same PDSCH (Physical Downlink Shared Channel).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control Channel candidate and the DCI carried by the second control Channel candidate are used to schedule the same PUSCH (Physical Uplink Shared Channel).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control channel candidate and the DCI carried by the second control channel candidate are used to trigger the same Reference Signal (RS, Reference Signal).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control channel candidate and the DCI carried by the second control channel candidate are used to schedule the same Transport Block (TB).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the DCI carried by the first control channel candidate and the DCI carried by the second control channel candidate are two repeated transmissions of the same DCI.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the first control channel alternative and the second control channel alternative are two independent transmissions of scheduling information of the same Transport Block (TB).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the first control channel alternative and the second control channel alternative are two times in a transmission of a multiple-opportunity (Multi-Chance) of scheduling information of a same Transport Block (TB).

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the index of the second control channel candidate is associated (linked or associated) with the index of the first control channel candidate.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the index of the second control channel candidate and the index of the first control channel candidate have a mapping relationship.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the index of the second control channel candidate and the index of the first control channel candidate have an operational relationship.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the index of the second control channel alternative and the index of the first control channel alternative have a functional relationship.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the index of the second control channel candidate and the index of the first control channel candidate have a correspondence.

As an embodiment, the expression "associated between said second control channel alternative and said first control channel alternative" in the claims includes the following meaning: the CCE occupied by the second control channel candidate is associated (linked or associated) with the CCE occupied by the first control channel candidate.

As an embodiment, the first information block indicates an association between the second control channel alternative and the first control channel alternative.

As an embodiment said first information block is used for determining an associated switch (enable/disable) between two control channel alternatives, said first information block indicating that the association between said second control channel alternative and said first control channel alternative is open (enabled).

As an embodiment, the first information block is used to determine whether there is an association between two control channel alternatives, the first information block indicating the association between the second control channel alternative and the first control channel alternative.

As an embodiment, the first transceiver receives a third information block indicating an association between the second control channel alternative and the first control channel alternative, the third information block being different from the first information block.

As an embodiment, the target association rule is a function.

As an embodiment, the target association rule is an association rule between control channel alternatives.

As an embodiment, the target association rule is an association rule between CCEs.

As an embodiment, the target association rule is an association function between an index of the second control channel alternative and an index of the first control channel alternative.

As an embodiment, the target association rule is an association function between indices of two control channel alternatives.

As an embodiment, the target association rule is an index of two control channel alternatives as a function of the independent variable and the dependent variable, respectively.

As an embodiment, the target association rule is an association function between the indices of two CCEs.

As an embodiment, the target association rule is a function of the indices of the two CCEs as an independent variable and a dependent variable, respectively.

As an embodiment, the target association rule is a function of the indices of the two control channel alternatives as input and output, respectively.

As an embodiment, the target association rule is a mapping relation.

As an embodiment, the target association rule is a mapping relation between two control channel alternatives.

As an embodiment, the target association rule is a mapping relationship between two CCEs.

As an embodiment, the target association rule is a mapping relation between indexes of two control channel alternatives.

As an embodiment, the target association rule is a mapping relationship between two control channel alternatives ordered according to a given order.

As an embodiment, the target association rule is a mapping relationship between indexes of two CCEs.

As an embodiment, the target association rule is a mapping relation in which the first control channel alternative is mapped to the second control channel alternative.

As an embodiment, the target association rule comprises claim 7 in the present application.

As an embodiment, the target association rule comprises claim 8 in the present application.

As an embodiment, the target association rule includes: the control channel alternatives included in the first alternative set in the present application are sorted according to a first order, and the control channel alternatives included in the second alternative set in the present application are sorted according to a second order; the P1 control channel alternatives comprised by said first alternative set being associated with (or mapped to) one control channel alternative comprised by said second alternative set being ordered in said second order; the P1 is a positive integer. As an adjunct to the above embodiments, the P1 is greater than 1. As an additional embodiment to the above embodiment, the P1 is equal to 1. As an additional embodiment of the above embodiment, the first order and the second order are the same. As an additional embodiment of the above embodiment, the first order and the second order are different. As an adjunct to the above embodiments, the P1 is configurable. As an adjunct to the above embodiments, the P1 is predefined. As an auxiliary embodiment of the foregoing embodiment, the first order is predefined, and at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the second order. As an auxiliary embodiment of the foregoing embodiment, at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order, and the second order is predefined. As an auxiliary embodiment of the foregoing embodiment, at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order and the second order. As a subsidiary embodiment of the above embodiment, the first order is predefined or configurable and the second order is predefined or configurable. As an additional embodiment of the above embodiment, the first order is a reverse ordering of the second order.

As an embodiment, the target association rule includes: the control channel alternatives included in the first alternative set in the present application are sorted according to a first order, and the control channel alternatives included in the second alternative set in the present application are sorted according to a second order; one control channel alternative comprised by said first alternative set ordered in said first order is associated with (or mapped to) P2 control channel alternatives comprised by said second alternative set ordered consecutively in said second order; the P2 is a positive integer. As an adjunct to the above embodiments, the P2 is greater than 1. As an additional embodiment to the above embodiment, the P2 is equal to 1. As an additional embodiment of the above embodiment, the first order and the second order are the same. As an additional embodiment of the above embodiment, the first order and the second order are different. As an adjunct to the above embodiments, the P2 is configurable. As an adjunct to the above embodiments, the P2 is predefined. As an auxiliary embodiment of the foregoing embodiment, the first order is predefined, and at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the second order. As an auxiliary embodiment of the foregoing embodiment, at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order, and the second order is predefined. As an auxiliary embodiment of the foregoing embodiment, at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order and the second order. As a subsidiary embodiment of the above embodiment, the first order is predefined or configurable and the second order is predefined or configurable. As an additional embodiment of the above embodiment, the first order is a reverse ordering of the second order.

As an embodiment, the target association rule includes: the control channel alternatives included in the first alternative set in the present application are sorted according to a first order, and the control channel alternatives included in the second alternative set in the present application are sorted according to a second order; one control channel alternative comprised by said first alternative set ordered in said first order is associated with (or mapped to) one control channel alternative comprised by said second alternative set ordered in said second order. As an additional embodiment of the above embodiment, the first order and the second order are the same. As an additional embodiment of the above embodiment, the first order and the second order are different. As an auxiliary embodiment of the foregoing embodiment, the first order is predefined, and at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the second order. As an auxiliary embodiment of the foregoing embodiment, at least one of a position of the time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order, and the second order is predefined. As an auxiliary embodiment of the foregoing embodiment, at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used to determine the first order and the second order. As a subsidiary embodiment of the above embodiment, the first order is predefined or configurable and the second order is predefined or configurable. As an additional embodiment of the above embodiment, the first order is a reverse ordering of the second order.

As an embodiment, the target association rule satisfies the following equation:

j＝f(i,v,…)

wherein i represents an index of a control channel candidate, j represents an index of a control channel candidate associated with the control channel candidate with the index of i, v represents one of a position of a time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of a time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index, and f (i, v, …) represents a function of which an argument at least includes i and v.

As an embodiment, the target association rule satisfies the following equation:

j＝f(i)

wherein i represents an index of a control channel candidate, j represents an index of a control channel candidate associated with the control channel candidate with index i, and f (i) represents a function of which the argument comprises at least i and which is related to said first parameter.

As an embodiment, the target association rule is used for determining which control channel alternatives are associated to which control channel alternatives, or the target association rule is used for determining which control channel alternatives are associated to which control channel alternatives.

As an embodiment, the target association rule is a one-to-one association rule.

As an embodiment, the target association rule is a many-to-one association rule.

As an embodiment, the target association rule is a one-to-many association rule.

As one embodiment, the first transceiver receives a fourth information block indicating that the target association rule is one of a one-to-one association rule, a many-to-one association rule, a one-to-many association rule. As an additional embodiment of the above embodiment, the fourth information block is a field or IE in the first information block. As an additional embodiment of the above embodiment, the fourth information block is an information block other than the first information block.

As one embodiment, the first transceiver receives a fifth information block, the target association rule is a P1-to-one association rule, the fifth information block indicates the P1, the P1 is a positive integer greater than 1. As an additional embodiment of the above embodiment, the fifth information block is a field or IE in the first information block. As an additional embodiment of the above embodiment, the fifth information block is an information block other than the first information block.

As one embodiment, the first transceiver receives a sixth information block, the target association rule is an association rule of a pair of P2, the sixth information block indicates the P2, and the P2 is a positive integer greater than 1. As an additional embodiment of the above embodiment, the sixth information block is a field or IE in the first information block. As an additional embodiment of the above embodiment, the sixth information block is an information block other than the first information block.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the second control channel alternative and the first control channel alternative satisfy the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the index of the second control channel candidate and the index of the first control channel candidate satisfy the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the second control channel alternative is associated to the first control channel alternative according to the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the first control channel alternative is associated to the second control channel alternative according to the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the first control channel alternative is used to determine the second control channel alternative according to the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: the second control channel alternative is used to determine the first control channel alternative according to the target association rule.

As an embodiment, the expression "the association between the second control channel alternative and the first control channel alternative complies with a target association rule" in the claims includes the following meaning: and the first control channel alternative and the second control channel alternative establish an association relation according to the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used by the first node device in the present application to determine the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used by the second node device in the present application to determine the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used for calculating to obtain the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used for determining the target association rule according to a given corresponding relationship.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used for determining a characteristic parameter, wherein the characteristic parameter is one of Q1 alternative parameters, Q1 alternative parameters correspond to Q1 alternative association rules one by one, the target association rule is an alternative association rule corresponding to the characteristic parameter in the Q1 alternative association rules, and Q1 is a positive integer greater than 1. As an additional embodiment to the above embodiment, the Q1 alternative parameters and the Q1 alternative association rules are predefined. As an additional embodiment to the above embodiment, the Q1 alternative parameters and the Q1 alternative association rules are configurable.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: the target association rule is a function, and at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used for determining a parameter of the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: the target association rule is a function, and at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index is used for determining an argument of the target association rule.

As an embodiment, the expression in the claims that at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule includes the following meanings: as an embodiment, at least one of the expression "the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, and the target index in the claims is used to determine the pseudo-random sequence in claim 8 in this application.

As an embodiment, the time-frequency Resource occupied by the first control channel candidate includes a Resource Element (RE) occupied by a CCE occupied by the first control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes a position of a CCE occupied by the first control channel candidate in the time-frequency domain.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a CCE occupied by the first control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a starting CCE occupied by the first control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a finished CCE occupied by the first control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a time Slot (Slot) to which the time-domain resource occupied by the first control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a start Symbol (Symbol) included in the time domain of the time-frequency resource occupied by the first control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of an extension (Span) to which the time-domain resource occupied by the first control channel candidate belongs.

As an embodiment, the time domain resource occupied by the first control channel candidate belongs to a first time window, and the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of the first time window in the time domain.

As an embodiment, the time domain resource occupied by the first control channel candidate belongs to a first time window, the first time window belongs to one of W1 time windows, and W1 is a positive integer greater than 1; the position of the time-frequency domain of the time-frequency resource occupied by the first control channel candidate includes the sequence of the first time window in the W1 time windows.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a BWP (Bandwidth Part) to which a frequency domain resource occupied by the first control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a Carrier (Carrier) to which the frequency-domain resource occupied by the first control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes an index of a frequency Band (Band) to which a frequency domain resource occupied by the first control channel candidate belongs.

As an embodiment, the frequency domain Resource occupied by the first control channel candidate belongs to a first frequency sub-band (Subband), where the first frequency sub-band includes a positive integer of Physical Resource Blocks (PRBs), and the position of the time-frequency Resource occupied by the first control channel candidate in the time-frequency domain includes the position of the first frequency sub-band in the frequency domain.

As an embodiment, the frequency domain Resource occupied by the first control channel candidate belongs to a first sub-band (Subband), the first sub-band is one of W2 sub-bands, any one of the W2 sub-bands includes a positive integer number of Physical Resource Blocks (PRBs), and W2 is a positive integer greater than 1; the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain comprises the index of the first sub-band in the W2 sub-bands.

As an embodiment, the time-frequency Resource occupied by the second control channel candidate includes a Resource Element (RE) occupied by a CCE occupied by the second control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes the position of the CCE occupied by the second control channel candidate in the time-frequency domain.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a CCE occupied by the second control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of the starting CCE occupied by the second control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a finished CCE occupied by the second control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a time Slot (Slot) to which the time-domain resource occupied by the second control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a start Symbol (Symbol) included in the time domain of the time-frequency resource occupied by the second control channel candidate.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of an extension (Span) to which the time-domain resource occupied by the second control channel candidate belongs.

As an embodiment, the time domain resource occupied by the second control channel candidate belongs to a second time window, and the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of the second time window in the time domain.

As an embodiment, the time domain resource occupied by the second control channel candidate belongs to a second time window, the second time window belongs to one of W3 time windows, and W3 is a positive integer greater than 1; the position of the time-frequency domain of the time-frequency resource occupied by the second control channel candidate includes the sequence of the second time window in the W3 time windows.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a BWP (Bandwidth Part) to which a frequency domain resource occupied by the second control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a Carrier (Carrier) to which the frequency-domain resource occupied by the second control channel candidate belongs.

As an embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes an index of a frequency Band (Band) to which the frequency-domain resource occupied by the second control channel candidate belongs.

As an embodiment, the frequency domain Resource occupied by the second control channel candidate belongs to a second frequency sub-band (Subband), where the second frequency sub-band includes a positive integer of Physical Resource Blocks (PRBs), and the position of the time-frequency Resource occupied by the second control channel candidate in the time-frequency domain includes the position of the second frequency sub-band in the frequency domain.

As an embodiment, the frequency domain Resource occupied by the second control channel candidate belongs to a second frequency sub-band (Subband), the second frequency sub-band is one of W4 frequency sub-bands, any one frequency sub-band in the W4 frequency sub-bands includes a positive integer number of Physical Resource Blocks (PRBs), and W4 is a positive integer greater than 1; the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain comprises the index of the second sub-band in the W4 sub-bands.

As an embodiment, the time domain resource occupied by the first control channel candidate belongs to a target time window, and the time domain resource occupied by the second control channel candidate belongs to the target time window. As an additional embodiment of the above embodiment, the time length of the target time window is predefined. As an additional embodiment to the above embodiment, the time length of the target time window is configurable. As an auxiliary embodiment of the foregoing embodiment, at least one of a time domain configuration of a Search Space Set (Search Space Set) to which the first control channel candidate belongs and a time domain configuration of a Search Space Set (Search Space Set) to which the second control channel candidate belongs is used to determine the target time window. As an auxiliary embodiment of the above embodiment, at least one of the Monitoring Occasion (MO) to which the first control channel candidate belongs in the time domain and the Monitoring Occasion (MO) to which the second control channel candidate belongs in the time domain is used to determine the target time window. As an auxiliary embodiment of the foregoing embodiment, the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain includes the position of the target time window in the time domain. As an auxiliary embodiment of the foregoing embodiment, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain includes the position of the target time window in the time domain. As an auxiliary embodiment of the above embodiment, the M1 control channel alternatives all belong to the target time window in the time domain.

As an embodiment, the target index is equal to an index of a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs.

As an embodiment, the target index is equal to an index of a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the second Control channel candidate belongs.

As an embodiment, the target index is equal to an index of a Search Space Set (Search Space Set) to which the first control channel candidate belongs.

As an embodiment, the target index is equal to an index of a Search Space Set (Search Space Set) to which the second control channel candidate belongs.

As an embodiment, the target index is equal to an ID of the first node device in this application.

As an embodiment, the target index is equal to an RNTI (Radio Network Temporary Identity).

As an embodiment, the target index is equal to a C-RNTI (Cell Radio Network Temporary Identity) of the first node device in this application.

As an embodiment, the target index is equal to an ID of a serving cell of the first node device in this application.

As an embodiment, the target index is equal to a PCID (Physical Cell ID) of a serving Cell of the first node device in this application.

As an embodiment, the target index is equal to an initial value of a scrambling code sequence of a reference signal in a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs.

As an embodiment, the target index is equal to a scrambling id (scrambling id) of a reference signal in a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs.

As an embodiment, the target index is equal to an initial value of a scrambling code sequence of a reference signal in a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the second Control channel candidate belongs.

As an embodiment, the target index is equal to a scrambling id (scrambling id) of a reference signal in a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the second Control channel candidate belongs.

As an embodiment, the target index is equal to a Hash function value in a Search Space Set (Search Space Set) to which the first control channel candidate belongs.

As an embodiment, the target index is equal to a Hash function value in a Slot (Slot) of the Search Space Set (Search Space Set) to which the first control channel candidate belongs in a time domain.

As one embodiment, the target index

Satisfies the following formula:

wherein Y is_p,-1＝n_RNTINot equal to 0, A when pmod3 is 0_p39827, when pmod3 is 1, a_p39829, when pmod3 is 2, a_p39839, D65537, where p represents the index of the Control Resource Set (CORESET) to which the CCE occupied by the first Control channel candidate belongs, and n represents the index of the Control Resource Set (Control Resource Set) to which the CCE belongs_RNTIA C-RNTI representing the first node device,

an index representing a time Slot (Slot) to which the first control channel candidate belongs in a time domain.

As an embodiment, the target index is equal to a Hash function value in a Search Space Set (Search Space Set) to which the second control channel candidate belongs.

As an embodiment, the target index is equal to a Hash function value in a Slot (Slot) of the second control channel candidate in a time domain in a Search Space Set (Search Space Set) to which the first control channel candidate belongs.

As one embodiment, the target index

Satisfies the following formula:

wherein Y is_p,-1＝n_RNTINot equal to 0, A when pmod3 is 0_p39827, when pmod3 is 1, a_p39829, when pmod3 is 2, a_p39839, D65537, p represents the control resource set (CORESET, Contr) to which the CCE occupied by the second control channel candidate belongsol Resource Set), n_RNTIA C-RNTI representing the first node device,

an index representing a time Slot (Slot) to which the second control channel candidate belongs in a time domain.

For one embodiment, the first block of information is used to determine the target index.

As an embodiment, a field in the first information block explicitly indicates the target index.

For one embodiment, the first transceiver receives a seventh information block, wherein the seventh information block is used to indicate the target index.

For one embodiment, the second transceiver receives a first signal, wherein the first signal is used to determine the target index.

For one embodiment, the target index is greater than 0.

For one embodiment, the target index may be equal to 0.

As an embodiment, the expression "at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index" in the claims includes the following meanings: the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index.

As an embodiment, the expression "at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index" in the claims includes the following meanings: and only one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is selected.

As an embodiment, the expression "at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index" in the claims includes the following meanings: the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index are only two.

As an embodiment, the number of CCEs (Control Channel elements) occupied by the first Control Channel candidate is equal to one of 1,2, 4, 8, and 16.

As an embodiment, the number of CCEs (Control Channel elements) occupied by the second Control Channel candidate is equal to one of 1,2, 4, 8, and 16.

As an embodiment, a CCE (Control Channel Element) occupied by the first Control Channel candidate includes REs occupied by reference signals.

As an embodiment, a CCE (Control Channel Element) occupied by the second Control Channel candidate includes REs occupied by reference signals.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR/evolved node B (gbb/eNB) 203 and other gbbs (enbs) 204. The gbb (enb)203 provides user and control plane protocol termination towards the UE 201. The gNB (eNB)203 may be connected to other gNB (eNB)204 via an Xn/X2 interface (e.g., backhaul). The gnb (enb)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 terminology. The gNB (eNB)203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless 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 terminology. gNB (eNB)203 is connected to 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the UE201 corresponds to the first node device in this application.

As an embodiment, the UE201 supports multiple TRP transmission.

As an embodiment, the UE201 supports transmission of PDCCH of multiple TPR.

As an embodiment, the gnb (enb)201 corresponds to the second node device in this application.

As an embodiment, the gbb (enb)201 supports multiple TRP transmissions.

As an embodiment, the gnb (enb)201 supports transmission of multiple TRP PDCCH.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 showing the radio protocol architecture of the control plane 300 for a first node device (UE or gNB) and a second node device (gNB or UE) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first node device and the second node device through PHY 301. 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 node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support for a first node device between second node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of 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 one cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second node device and the first 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 in the user plane 350 for the first node device and the second node device is substantially the same 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 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node device in the present application.

As an example, the wireless protocol architecture in fig. 3 is applicable to the second node device in the present application.

As an embodiment, the first information block in the present application is generated in the RRC306, or the MAC302, or the MAC352, or the PHY301, or the PHY 351.

As an embodiment, the second information block in the present application is generated in the RRC306, or the MAC302, or the MAC352, or the PHY301, or the PHY 351.

As an embodiment, the M1 control channels in this application are generated alternatively from the PHY301 or the PHY 351.

Example 4

Embodiment 4 shows a schematic diagram of a first node device and a second node device according to the present application, as shown in fig. 4.

A controller/processor 490, a data source/buffer 480, a receive processor 452, a transmitter/receiver 456, and a transmit processor 455 may be included in the first node device (450), the transmitter/receiver 456 including an antenna 460.

A controller/processor 440, a data source/buffer 430, a receive processor 412, a transmitter/receiver 416 and a transmit processor 415 may be included in the second node device (410), the transmitter/receiver 416 including an antenna 420.

In the DL (Downlink), upper layer packets, such as the upper layer information included in the first information block in the present application, are provided to the controller/processor 440. Controller/processor 440 performs the functions of layer L2 and above. In the DL, the controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first node device 450 based on various priority metrics. Controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to first node device 450, such as higher layer information included in the first information block in this application, all generated in controller/processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., such as the generation of the physical layer signal of the first information block is done at the transmit processor 415 in this application, and the generation of the transmitted control signaling is done at the transmit processor 415 when there are control channel alternatives from among the M1 control channel alternatives in this application used for transmitting control signaling. The generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and/or multi-carrier symbol and then transmitted as radio frequency signals by a transmit processor 415 via a transmitter 416 to an antenna 420. On the receive side, each receiver 456 receives a radio frequency signal through its respective antenna 460, and each receiver 456 recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to a receive processor 452. The receive processor 452 implements various signal receive processing functions of the L1 layer. The signal reception processing functions include reception of the physical layer signal of the first information block in this application and monitoring of the M1 control channel alternatives in this application, demodulation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)) over the multicarrier symbols in the multicarrier symbol stream, followed by descrambling, decoding, and deinterleaving to recover the data or control transmitted by the second node device 410 over the physical channel, followed by providing the data and control signals to the controller/processor 490. The controller/processor 490 is responsible for the L2 layer and above, and the controller/processor 490 interprets the first block of information in this application. The controller/processor can be associated with a memory 480 that stores program codes and data. Memory 480 may be referred to as a computer-readable medium.

In Uplink (UL) transmission, similar to downlink transmission, the second information block in this application is generated by the controller/processor 490, and then the second information block is subjected to various signal transmission processing functions for the L1 layer (i.e., physical layer) through the transmission processor 455, and a physical layer signal carrying the second information block is generated by the transmission processor 455, and then is mapped to the antenna 460 via the transmitter 456 and transmitted in the form of a radio frequency signal by the transmission processor 455. Receivers 416 receive radio frequency signals through their respective antennas 420, each receiver 416 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to receive processor 412. The receive processor 412 performs various signal reception processing functions for the L1 layer (i.e., the physical layer), including receiving and processing physical layer signals carrying the second information block in this application, and then providing data and/or control signals to the controller/processor 440. The functions of layer L2 are performed at controller/processor 440, including reading the second information block in this application. The controller/processor can be associated with a buffer 430 that stores program codes and data. The buffer 430 may be a computer-readable medium.

As an embodiment, the first node apparatus 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first node apparatus 450 at least: receiving a first information block; monitoring M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

As an embodiment, the first node apparatus 450 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first information block; monitoring M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

For one embodiment, the second node device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second node device 410 apparatus at least: transmitting a first information block; determining M1 control channel alternatives, the first information block being used to indicate the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

For one embodiment, the second node device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first information block; determining M1 control channel alternatives, the first information block being used to indicate the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

For one embodiment, the first node apparatus 450 is a User Equipment (UE).

As an embodiment, the first node device 450 is a user equipment supporting multiple TRP transmission.

As an embodiment, the first node device 450 is a user equipment supporting multiple TRP PDCCH transmission.

For an embodiment, the second node device 410 is a base station device (gNB/eNB).

As an embodiment, the second node device 410 is a base station device supporting multiple TRP transmission.

As an embodiment, the second node device 410 is a base station device supporting multiple TRP PDCCH transmission.

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

For one embodiment, receiver 456 (including antenna 460) and receive processor 452 are used to monitor the M1 control channel alternatives in this application.

For one embodiment, a transmitter 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 are used to transmit the second information block in this application.

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

For one embodiment, transmitter 416 (including antenna 420) and transmit processor 415 are used to determine the M1 control channel alternatives in the present application.

For one embodiment, receiver 416 (including antenna 420), receive processor 412, and controller/processor 440 are used to receive the second information block in this application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node apparatus N500 is a maintenance base station of the serving cell of the first node apparatus U550. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theSecond node device N500The second information block is received in step S501, the first information block is sent in step S502, and M1 control channel alternatives are determined in step S503.

For theFirst node device U550The second information block is sent in step S551, the first information block is received in step S552, and M1 control channel alternatives are monitored in step S553.

In embodiment 5, the first information block in this application is used to determine the M1 control channel alternatives in this application, the M1 being a positive integer greater than 1; the first control channel alternative is one of the M1 control channel alternatives, and the second control channel alternative is one different from the first control channel alternative; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel alternative occupies a positive integer number of CCEs, and the second control channel alternative occupies a positive integer number of CCEs; the second information block is used to indicate whether the first node device supports at least one of the type of association between the second control channel alternative and the first control channel alternative, the type of association between the second control channel alternative and the first control channel alternative supported by the first node device.

As an embodiment, the second information block is transmitted over an air interface.

As an embodiment, the second information block is transmitted over a wireless interface.

As an embodiment, the second information block includes all or part of higher layer signaling.

As an embodiment, the second information block includes all or part of physical layer signaling.

As an embodiment, the second information block includes all or part of RRC (Radio Resource Control) signaling.

As an embodiment, the second information block includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the second information block is transmitted through an UL-SCH (Uplink Shared Channel).

As an embodiment, the second information block is transmitted through a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the second information block is transmitted through a PUCCH (Physical Uplink Control Channel).

As an embodiment, the second Information block includes UCI (Uplink Control Information).

As an embodiment, the second information block is used to indicate the capability of the first node device in the present application.

As an embodiment, the second information block indicates a capability of a combined decoding of a PDCCH of the first node apparatus in the present application.

As an embodiment, the second information block indicates a capability of the first node device in this application to support Multi-opportunity (Multi-sequence) DCI transmission.

As an embodiment, the second information block indicates a capability of the first node device in the present application to support association between two PDCCH candidates (candidates).

As an embodiment, the second information block indicates a capability of the first node device in this application to support two PDCCH candidates (candidates) to schedule the same TB.

As an embodiment, the expression "the second information block is used to indicate whether the first node device supports at least one of the association between the second control channel alternative and the first control channel alternative, the association type between the second control channel alternative and the first control channel alternative supported by the first node device" in the claims includes the following meaning: the second information block is used to indicate whether the first node device supports association between the second control channel alternative and the first control channel alternative, and when the first node device supports association between the second control channel alternative and the first control channel alternative, the second information block is used to indicate a type of association associated between the second control channel alternative and the first control channel alternative that the first node device supports.

As an embodiment, the expression "the second information block is used to indicate whether the first node device supports at least one of the association between the second control channel alternative and the first control channel alternative, the association type between the second control channel alternative and the first control channel alternative supported by the first node device" in the claims includes the following meaning: the second information block is used only to indicate whether the first node device supports association between the second control channel alternative and the first control channel alternative.

As an embodiment, the expression "the second information block is used to indicate whether the first node device supports at least one of the association between the second control channel alternative and the first control channel alternative, the association type between the second control channel alternative and the first control channel alternative supported by the first node device" in the claims includes the following meaning: the second information block is used only to indicate the type of association associated between the second control channel alternative and the first control channel alternative supported by the first node device.

As an embodiment, the type of association associated between the second control channel alternative and the first control channel alternative comprises a Combining type between the second control channel alternative and the first control channel alternative.

As an embodiment, the type of association associated between the second control channel alternative and the first control channel alternative comprises a Combining type between the PDCCH transmitted by the second control channel alternative and the PDCCH transmitted by the first control channel alternative.

As an embodiment, the association type between the second control channel candidate and the first control channel candidate is one of a first association type and a second association type, the first association type includes that a PDCCH transmitted by the second control channel candidate and a PDCCH transmitted by the first control channel candidate can be Soft combined (Soft Combining), and the second association type includes that a PDCCH transmitted by the second control channel candidate and a PDCCH transmitted by the first control channel candidate cannot be Soft combined (Soft Combining).

As an embodiment, the association type associated between the second control channel candidate and the first control channel candidate is one of a first association type and a second association type, the first association type includes Soft Combining (Soft Combining) between the PDCCH transmitted by the second control channel candidate and the PDCCH transmitted by the first control channel candidate, and the second association type includes Multi-opportunity (Multi-change) DCI transmission between the PDCCH transmitted by the second control channel candidate and the PDCCH transmitted by the first control channel candidate.

As an embodiment, the association type associated between the second control channel candidate and the first control channel candidate is one of a first association type and a second association type, the first association type includes two repeated transmissions (repetitions) in which the second control channel candidate and the first control channel candidate are used to carry the same DCI Payload (Payload), and the second association type includes two independent transmissions in which the second control channel candidate and the first control channel candidate respectively carry two DCI payloads.

As an embodiment, the association type associated between the second control channel candidate and the first control channel candidate is one of a first association type and a second association type, the first association type includes two repeated transmissions (repetitions) that the second control channel candidate and the first control channel candidate can be assumed to carry the same DCI load (Payload), and the second association type includes two repeated transmissions (repetitions) that the second control channel candidate and the first control channel candidate cannot be assumed to carry the same DCI load (Payload), respectively.

As an embodiment, "the second information block is used to indicate at least one of the associated types of association between the second control channel alternative and the first control channel alternative supported by the first node device" includes the following meaning: the second information block indicates whether the first node device supports soft combining between the PDCCH transmitted by the second control channel candidate and the PDCCH transmitted by the first control channel candidate.

As an embodiment, "the second information block is used to indicate at least one of the associated types of association between the second control channel alternative and the first control channel alternative supported by the first node device" includes the following meaning: the second information block indicates whether the first node device supports that the second control channel candidate and the first control channel candidate carry the same DCI load.

As an embodiment, "the second information block is used to indicate at least one of the associated types of association between the second control channel alternative and the first control channel alternative supported by the first node device" includes the following meaning: the second information block indicates whether the first node device supports two repeated transmissions in which the second control channel candidate and the first control channel candidate respectively carry the same DCI load.

As an embodiment, the second information block comprises one or more fields (fields) in the IE "Phy-Parameters".

Example 6

Embodiment 6 illustrates a schematic diagram of a relationship between quasi co-siting of a first control channel alternative and quasi co-siting of a second control channel alternative according to an embodiment of the application, as shown in fig. 6. In fig. 6, the first control channel alternative and the second control channel alternative are transmitted from TRP #1 and TRP #2, respectively.

In embodiment 6, the quasi-co-location of the reference signal included in the first control channel candidate and the quasi-co-location of the reference signal included in the second control channel candidate are different.

As an embodiment, the Reference Signal included in the first Control Channel candidate is a PDCCH (Physical Downlink Control Channel) DMRS (Demodulation Reference Signal).

As an embodiment, the Reference Signal included in the second Control Channel candidate is a PDCCH (Physical Downlink Control Channel) DMRS (Demodulation Reference Signal).

As an embodiment, the reference signal included in the first Control Channel alternative is a reference signal used for PDCCH (Physical Downlink Control Channel) reception.

As an embodiment, the reference signal included in the second Control Channel alternative is a reference signal used for PDCCH (Physical Downlink Control Channel) reception.

As an embodiment, the reference signal included in the first control channel candidate and the reference signal included in the second control channel candidate are Quasi Co-located (QCL, Quasi Co-Location) with different reference signals, respectively.

As an embodiment, the reference signal included in the first control channel candidate and the reference signal included in the second control channel candidate are Quasi Co-located with different antenna ports, respectively (QCL, Quasi Co-Location).

As an embodiment, the reference signal included in the first control channel candidate and the reference signal included in the second control channel candidate are Quasi Co-located (QCL, Quasi Co-Location) with reference signals occupying different time-frequency resources, respectively.

As an embodiment, the reference signal included in the first control channel candidate and the reference signal included in the second control channel candidate are Quasi Co-located (QCL, Quasi Co-Location) with reference signals occupying different time domain resources, respectively.

As an embodiment, the reference Signal included in the first control Channel candidate and the reference Signal included in the second control Channel candidate are Quasi Co-located (QCL) with SS/PBCH (Synchronization Signal/Physical Broadcast Channel) blocks (blocks) having different indexes.

As an embodiment, the Reference Signal included in the first control Channel candidate and the Reference Signal included in the second control Channel candidate are Quasi Co-located (QCL) with CSI-RS (Channel state Information Reference Signal) of different antenna ports, respectively.

As an embodiment, the Reference Signal included in the first control Channel candidate and the Reference Signal included in the second control Channel candidate are respectively Quasi-Co-located (QCL) with CSI-RS (Channel state Information Reference Signal) occupying different time-frequency resources.

As an embodiment, the first node device in this application assumes that the quasi-co-location of the reference signal included in the first control channel candidate and the quasi-co-location of the reference signal included in the second control channel candidate are different.

As an embodiment, the first node device in this application cannot assume that the quasi-co-location of the reference signal included in the first control channel candidate is the same as the quasi-co-location of the reference signal included in the second control channel candidate.

As an embodiment, a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the first control channel candidate and a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the second control channel candidate are different.

As an embodiment, the first node device in this application assumes that a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the first control channel candidate is different from a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the second control channel candidate.

As an embodiment, the first node device in this application cannot assume that a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the first control channel candidate is the same as a TCI (Transmission Configuration Indication) State (State) of a reference signal included in the second control channel candidate.

As an embodiment, the antenna port quasi co-location of the reference signal included in the first control channel candidate and the antenna port quasi co-location of the reference signal included in the second control channel candidate are different.

As an embodiment, a quasi co-location type (QCL type) of a reference signal included in the first control channel candidate and a quasi co-location type (QCL type) of a reference signal included in the second control channel candidate are different.

As an embodiment, a quasi co-location type (QCL type) of a reference signal included in the first control channel candidate and a quasi co-location type (QCL type) of a reference signal included in the second control channel candidate are the same.

As an embodiment, the first transceiver receives an eighth information block, wherein the eighth information block is used to determine a target quasi co-located set, the target quasi co-located set includes a positive integer number of antenna port quasi co-locations greater than 1, the quasi co-location of the reference signal included in the first control channel candidate is one antenna port quasi co-location included in the target quasi co-located set, and the quasi co-location of the reference signal included in the second control channel candidate is one antenna port quasi co-location included in the target quasi co-located set.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between a first set of control resources and a second set of control resources according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the horizontal axis represents time, the vertical axis represents frequency, the circles filled with dots represent a first set of control resources, the squares filled with oblique lines in the circles filled with dots represent a first control channel alternative, the squares filled with cross lines represent a second set of control resources, and the squares filled with cross lines in the squares filled with cross lines represent a second control channel alternative.

In embodiment 7, each CCE occupied by the first control channel candidate in this application belongs to a first control resource set, and a CCE occupied by the second control channel candidate in this application belongs to a second control resource set; the index of the control resource set resource pool where the first control resource set is provided and the index of the control resource set resource pool where the second control resource set is provided are not equal.

As one embodiment, the first set of control resources includes a positive integer number of CCEs greater than 1.

As an embodiment, the second set of control resources comprises a positive integer number of CCEs greater than 1.

For one embodiment, the first set of control resources is a CORESET.

For one embodiment, the second set of control resources is a CORESET.

As an embodiment, the first control resource set includes a positive integer number of CCEs greater than 1, and any two CCEs included in the first control resource set belong to the same CORESET.

As an embodiment, the first control resource set includes a positive integer number of CCEs greater than 1, and there are two CCEs in the first control resource set that respectively belong to two different CORESETs.

As an embodiment, the second control resource set includes a positive integer number of CCEs greater than 1, and any two CCEs included in the second control resource set belong to the same CORESET.

As an embodiment, the second control resource set includes a positive integer number of CCEs greater than 1, and there are two CCEs in the second control resource set that respectively belong to two different CORESETs.

As an embodiment, the first control resource set includes a positive integer number of CCEs greater than 1, the second control resource set includes a positive integer number of CCEs greater than 1, and any one CCE included in the first control resource set and any one CCE included in the second control resource set belong to the same CORESET.

As an embodiment, the first control resource set includes a positive integer number of CCEs greater than 1, the second control resource set includes a positive integer number of CCEs greater than 1, and the CCEs included in the first control resource set and the CCEs included in the second control resource set belong to two different CORESET respectively.

For one embodiment, the first set of control resources and the second set of control resources are the same.

For one embodiment, the first set of control resources and the second set of control resources are different.

For one embodiment, the first set of control resources and the second set of control resources are two different CORESET, respectively.

For one embodiment, the first set of control resources and the second set of control resources are the same CORESET.

As an embodiment, the first set of control resources and the second set of control resources are two CORESET with different indices, respectively.

As an embodiment, the first set of control resources and the second set of control resources are each a subset of two identical CORESET with different indices.

As an embodiment, the first and second sets of control resources belong to the same CORESET, and the CORESET to which the first and second sets of control resources belong in common is provided with an index of more than 1 resource pool of control resources.

As an embodiment, the first and second control resource sets belong to two different CORESET respectively, and the CORESET to which the first and second control resource sets belong respectively is provided with an index of a different control resource set resource pool.

As an embodiment, the expression "index of the resource pool of the control resource set where the first control resource set is provided" in the claims includes the following meaning: the CORESET to which the first control resource set belongs is indexed by a Provided (provisioned) control resource set resource pool.

As an embodiment, the expression "index of the resource pool of the control resource set where the first control resource set is provided" in the claims includes the following meaning: the first control resource set comprises a positive integer number of CCEs greater than 1, and the CORESET to which the CCEs comprised in the first control resource set belong is Provided with an index of a (Provided) control resource set resource pool.

As an embodiment, the expression "index of the resource pool of the control resource set where the first control resource set is provided" in the claims includes the following meaning: an index to a control resource set resource pool with which the first control resource set is associated.

As an embodiment, the expression "index of the resource pool of the control resource set to which the first control resource set belongs" in the claims includes the following meanings: the first control resource set comprises a positive integer number of CCEs greater than 1, and the first control resource set comprises an index of a control resource set resource pool associated with the CCEs.

As an embodiment, the expression "index of the resource pool of the second set of control resources provided" in the claims includes the following meaning: the CORESET to which the second set of control resources belongs is indexed by the pool of control resource set resources for which (Provided) is Provided.

As an embodiment, the expression "index of the resource pool of the second set of control resources provided" in the claims includes the following meaning: the second control resource set comprises a positive integer number of CCEs greater than 1, and the CORESET to which the CCEs comprised in the second control resource set belong is Provided with an index of a (Provided) control resource set resource pool.

As an embodiment, the expression "index of the resource pool of the second set of control resources provided" in the claims includes the following meaning: an index of a control resource set resource pool with which the second control resource set is associated.

As an embodiment, the expression "index of the resource pool of the control resource set to which the second control resource set belongs" in the claims includes the following meanings: the second control resource set comprises a positive integer number of CCEs greater than 1, and the second control resource set comprises an index of a control resource set resource pool associated with the CCEs.

Example 8

Embodiment 8 illustrates a schematic diagram of the relationship between a first CCE and L1 REGs according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the horizontal axis represents time, the vertical axis represents frequency, each slashed rectangle represents one REG of L1 REGs, and the bold-lined box represents the first CCE.

In embodiment 8, a first CCE is a CCE occupied by the second control channel candidate in the present application, where the first CCE includes L1 REGs, mapping of the first CCE to the L1 REGs employs non-interleaved mapping, and L1 is a positive integer greater than 1.

As an embodiment, the first CCE is any CCE occupied by the second control channel candidate.

As an embodiment, the first CCE is a specific CCE occupied by the second control channel candidate.

As one example, the L1 is equal to 6.

As an example, the L1 is equal to 2.

As one example, the L1 is equal to 3.

As one example, the L1 is equal to 12.

As an embodiment, each REG (Resource Element Group) included in the first CCE occupies one Symbol (Symbol) in a time domain and one PRB in a frequency domain.

As an embodiment, each REG comprised by the first CCE includes 12 REs.

As an embodiment, each REG included in the first CCE includes REs occupied by a reference signal.

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device in this application assumes that Mapping of the first CCE to the L1 REGs employs Non-interleaved Mapping (Non-interleaved Mapping).

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device in the present application cannot assume that Mapping of the first CCE to the L1 REGs employs Interleaved Mapping (Interleaved Mapping).

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: and the CORESET to which the first CCE belongs adopts the mapping from the non-interlaced CCE to the REG.

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device assumes that the CORESET to which the first CCE belongs adopts non-interleaved mapping of CCEs to REGs.

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device assumes that the first information block indicates that the CORESET to which the first CCE belongs adopts non-interleaved mapping of CCEs to REGs.

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device cannot assume that the CORESET to which the first CCE belongs employs interleaved CCE to REG mapping.

As an example, the expression "the mapping of said first CCE to said L1 REGs employs non-interleaved mapping" in the claims encompasses the following meaning: the first node device cannot assume that the first information block indicates that the CORESET to which the first CCE belongs employs interleaved CCE to REG mapping.

As an embodiment, the first information block in this application is used to indicate a mapping manner of the first CCE to the L1 REGs.

As an embodiment, the first information block in the present application is used to indicate whether the mapping of CCEs in the CORESET to which the first CCE belongs to REGs is an interleaving mapping or a non-interleaving mapping.

As an embodiment, the second CCE is one CCE occupied by the first control channel candidate, the second CCE includes L2 REGs, Mapping of the second CCE to the L2 REGs employs Non-interleaved Mapping (Non-interleaved Mapping), and L2 is a positive integer greater than 1.

As an embodiment, the second CCE is a CCE occupied by the first control channel candidate, where the second CCE includes L2 REGs, and in this application, the first node device assumes that Mapping of the second CCE to the L2 REGs employs Non-interleaved Mapping (Non-interleaved Mapping), where L2 is a positive integer greater than 1.

As an embodiment, the second CCE is a CCE occupied by the first control channel candidate, where the second CCE includes L2 REGs, and in this application, the first node device assumes that the first information block indicates that Mapping of the second CCE to the L2 REGs employs Non-interleaved Mapping (Non-interleaved Mapping), where L2 is a positive integer greater than 1.

As an embodiment, the second CCE is a CCE occupied by the first control channel candidate, where the second CCE includes L2 REGs, and in this application, the first node device cannot assume that Mapping of the second CCE to the L2 REGs employs Non-interleaved Mapping (Non-interleaved Mapping), where L2 is a positive integer greater than 1.

As an embodiment, the second CCE is a CCE occupied by the first control channel candidate, the second CCE includes L2 REGs, Mapping of the second CCE to the L2 REGs employs Interleaved Mapping (Interleaved Mapping), and L2 is a positive integer greater than 1.

Example 9

Embodiment 9 illustrates a schematic diagram of precoding granularity according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the horizontal axis represents time and the vertical axis represents frequency, and the cross-line filled rectangle represent two REG bindings (bundles) using different precoding, respectively.

In embodiment 9, the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs in the present application is REG bonding.

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: a precoding Granularity (Precoder Granularity) of a Control Resource Set (CORESET, Control Resource Set) to which one CCE that is occupied by the second Control channel candidate belongs is REG (Resource Element Group) binding (Bundle).

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: all the CCEs occupied by the second Control channel candidate belong to the same Control Resource Set (CORESET, Control Resource Set), and the precoding granularity of the Control Resource Set (CORESET, Control Resource Set) to which all the CCEs occupied by the second Control channel candidate belong is REG (Resource Element Group) binding (Bundle).

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: the second Control channel candidate occupies more than one CCE, the two CCEs occupied by the second Control channel candidate respectively belong to two different Control Resource sets (CORESET, Control Resource Set), and the precoding granularity of one Control Resource Set (CORESET, Control Resource Set) to which one CCE belongs occupied by the second Control channel candidate is REG (Resource Element Group) binding (Bundle).

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: in this application, the first node device assumes that the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding.

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: in this application, the first node device cannot assume that the precoding granularity of the control Resource set to which the CCE occupied by the second control channel candidate belongs is all continuous RBs (Resource blocks).

As an embodiment, the first information block in this application is used to indicate precoding granularity of a control resource set to which a CCE occupied by the second control channel candidate belongs.

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: in this application, the first information block is used to indicate precoding granularity of a control resource set to which a CCE occupied by the second control channel candidate belongs, and the first node device in this application assumes that the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs, indicated by the first information block, is REG bound.

As an embodiment, the expression "the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding" in the claims includes the following meanings: in this application, the first information block is used to indicate the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs, and the first node device in this application cannot assume that the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs, indicated by the first information block, is all continuous RBs (resource blocks).

As an embodiment, a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the second Control channel candidate belongs is the second Control Resource Set in this application.

As an embodiment, a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the second Control channel candidate belongs includes the second Control Resource Set in the present application.

As an embodiment, when the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG binding, the first node device in this application assumes that the control resource set to which the CCE occupied by the second control channel candidate belongs adopts the same precoding (precoding) in one REG binding.

As an embodiment, when the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding, the first node device in this application cannot assume that the same precoding is adopted among all REGs included in the control resource set to which the CCE occupied by the second control channel candidate belongs.

As an embodiment, the precoding granularity of the Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs is REG binding.

As an embodiment, the first node device in this application assumes that precoding granularity of a Control Resource Set (CORESET, Control Resource Set) to which a CCE occupied by the first Control channel candidate belongs is REG binding.

As an embodiment, the first node device in this application cannot assume that the precoding granularity of a Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs is all continuous RBs (Resource blocks ).

As an embodiment, the first information block in the present application indicates a precoding granularity of a Control Resource Set (CORESET, Control Resource Set) to which a CCE occupied by the first Control channel candidate belongs.

As an embodiment, in this application, the first information block indicates a precoding granularity of a Control Resource Set (CORESET, Control Resource Set) to which a CCE occupied by the first Control channel candidate belongs, and the first node device in this application assumes that the precoding granularity of the Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs, indicated by the first information block, is REG bound.

As an embodiment, the first information Block in this application indicates a precoding granularity of a Control Resource Set (CORESET, Control Resource Set) to which a CCE occupied by the first Control channel candidate belongs, and the first node device in this application cannot assume that the precoding granularity of the Control Resource Set (CORESET, Control Resource Set) to which the CCE occupied by the first Control channel candidate belongs, indicated by the first information Block, is all consecutive RBs (Resource blocks ).

As an embodiment, one REG Bundle (Bundle) included in a control resource set to which a CCE occupied by the first control channel candidate belongs includes a positive integer of REGs greater than 1.

As an embodiment, the number of REGs included in one REG Bundle (Bundle) included in the control resource set to which the CCE occupied by the first control channel candidate belongs is equal to one of 2, 3, and 6.

As an embodiment, the number of REGs included in one REG Bundle (Bundle) included in the control resource set to which the CCE occupied by the first control channel candidate belongs is equal to or related to the number of symbols (symbols) included in the time domain of the control resource set to which the CCE occupied by the first control channel candidate belongs.

As an embodiment, the first information block in the present application indicates the number of REGs included in one REG Bundle (Bundle) included in a control resource set to which a CCE that is occupied by the first control channel candidate belongs.

Example 10

Embodiment 10 illustrates a schematic diagram of a relationship between a first DCI and a second DCI according to an embodiment of the present application, as shown in fig. 10. In fig. 10, in case a and case B, the horizontal axis represents time, the vertical axis represents frequency, and the dotted line with an arrow represents the corresponding DCI scheduling relationship. In case A, the rectangles filled with oblique lines represent a first time-frequency resource set, and the rectangles filled with crossed lines represent a second time-frequency resource set; in case B, the first set of time-frequency resources and the second set of time-frequency resources completely coincide, and the cross-hatched filled rectangles represent the first set of time-frequency resources and the second set of time-frequency resources.

In embodiment 10, the first node device in this application assumes that the first control channel candidate in this application carries a first DCI, and the first node device in this application assumes that the second control channel candidate in this application carries a second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

As an embodiment, a DCI (Downlink Control Information) Format (Format) of the first DCI is the same as a DCI (Downlink Control Information) Format (Format) of the second DCI.

As an embodiment, a DCI (Downlink Control Information) Format (Format) of the first DCI is different from a DCI (Downlink Control Information) Format (Format) of the second DCI.

As an embodiment, the first node device in this application assumes that a DCI (Downlink Control Information) Format (Format) of the first DCI is the same as a DCI (Downlink Control Information) Format (Format) of the second DCI.

As an embodiment, the first node device in this application cannot assume that a DCI (Downlink Control Information) Format (Format) of the first DCI is the same as a DCI (Downlink Control Information) Format (Format) of the second DCI.

As one embodiment, the first DCI is used to generate a PDCCH employing the first control channel alternative.

As an embodiment, the PDCCH of the first control channel candidate is adopted to carry the first DCI.

As an embodiment, the second DCI is used to generate a PDCCH employing the second control channel alternative.

As an embodiment, the second DCI is carried by the PDCCH of the second control channel candidate.

As one embodiment, one or more fields (fields) included in the first DCI are used to indicate the first set of time-frequency resources.

As one embodiment, one or more fields (fields) included in the second DCI are used to indicate the second set of time-frequency resources.

As one embodiment, one or more fields (fields) included in the first DCI explicitly indicate the first set of time-frequency resources.

As one embodiment, one or more fields (fields) included in the second DCI explicitly indicate the second set of time-frequency resources.

As one embodiment, one or more fields (fields) included in the first DCI implicitly indicate the first set of time-frequency resources.

As an embodiment, one or more fields (fields) included in the second DCI implicitly indicate the second set of time-frequency resources.

As an embodiment, the first set of time-frequency resources comprises a positive integer number of symbols (symbols) in the time domain and a positive integer number of PRBs in the frequency domain.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of symbols (symbols) in the time domain and a positive integer number of PRBs in the frequency domain.

As an embodiment, the first set of time-frequency resources comprises a positive integer number of symbols (Symbol) in the time domain and a positive integer number of subcarriers (Subcarrier) in the frequency domain.

As an embodiment, the second set of time frequency resources comprises a positive integer number of symbols (Symbol) in the time domain and a positive integer number of subcarriers (Subcarrier) in the frequency domain.

As an embodiment, the first set of time-frequency resources includes time-frequency resources assumed to be occupied by a PDSCH (Physical Downlink Shared Channel), and the second set of time-frequency resources includes time-frequency resources assumed to be occupied by the PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first set of time-frequency resources includes time-frequency resources assumed to be occupied by a PUSCH (Physical Uplink Shared Channel) by the first node device, and the second set of time-frequency resources includes time-frequency resources assumed to be occupied by a PUSCH (Physical Uplink Shared Channel) by the first node device.

As an embodiment, the first set of time-frequency resources includes time-frequency resources assumed to be occupied by Reference Signals (RS) by the first node device, and the second set of time-frequency resources includes time-frequency resources assumed to be occupied by Reference Signals (RS) by the first node device.

As one embodiment, the first DCI and the second DCI block indicate the same HARQ process number.

As an embodiment, the first DCI and the second DCI block respectively indicate different HARQ process numbers.

As one embodiment, the first DCI and the second DCI indicate a same Transport Block (TB).

As one embodiment, the first DCI and the second DCI are used to schedule the same 1 or 2 Transport Blocks (TBs).

As an embodiment, the first DCI and the second DCI indicate the same DAI (Downlink Assignment Index) value.

As an embodiment, the first DCI and the second DCI each indicate different DAI (Downlink Assignment Index) values.

As an embodiment, the first DCI and the second DCI indicate the same T-DAI (Total Downlink Assignment Index) value.

As an embodiment, the first DCI and the second DCI respectively indicate different T-DAI (Total Downlink Assignment Index) values.

As an embodiment, the first DCI and the second DCI indicate a same C-DAI (Counter Downlink Assignment Index) value.

As an embodiment, the first DCI and the second DCI each indicate a different C-DAI (Counter Downlink Assignment Index) value.

As an embodiment, the first transceiver transmits first HARQ feedback, wherein the first HARQ feedback comprises HARQ-ACKs for PDSCH; the first DCI and the second DCI respectively indicate different DAI (Downlink Assignment Index) values, and the DAI indicated by the DCI received later between the first DCI and the second DCI is used to determine the HARQ-ACK bit included in the first HARQ feedback.

As an embodiment, the first transceiver transmits first HARQ feedback and second HARQ feedback, wherein the first HARQ feedback and the second HARQ feedback both include HARQ-ACK of the same PDSCH; the first DCI and the second DCI respectively indicate different DAI (Downlink Assignment Index) values; the first HARQ feedback and the second HARQ feedback both include an ACK (Acknowledgement) when the same PDSCH is correctly coded; when the same PDSCH is not correctly decoded, the first HARQ feedback and the second HARQ feedback both include a NACK (Non-Acknowledgement).

As an embodiment, the expression "time domain resources with overlap between the first set of time frequency resources and the second set of time frequency resources" in the claims includes the following meaning: there is one time domain Symbol (Symbol) occupied by both the first set of time-frequency resources and the second set of time-frequency resources in the time domain.

As an embodiment, the expression "time domain resources with overlap between the first set of time frequency resources and the second set of time frequency resources" in the claims includes the following meaning: the first set of time frequency resources and the second set of time frequency resources are identical.

As an embodiment, the expression "time domain resources with overlap between the first set of time frequency resources and the second set of time frequency resources" in the claims includes the following meaning: the first set of time-frequency resources and the second set of time-frequency resources are Non-Orthogonal (Non-Orthogonal).

As an embodiment, the expression "time domain resources with overlap between the first set of time frequency resources and the second set of time frequency resources" in the claims includes the following meaning: there is one RE belonging to both the first set of time-frequency resources and the second set of time-frequency resources.

As an embodiment, the expression "time domain resources with overlap between the first set of time frequency resources and the second set of time frequency resources" in the claims includes the following meaning: overlapping (Overlapped) REs exist between the first set of time frequency resources and the second set of time frequency resources.

As an embodiment, the first set of time frequency resources and the second set of time frequency resources are Orthogonal (Orthogonal).

As an embodiment, the first set of time-frequency resources and the second set of time-frequency resources are Non-Orthogonal (Non-Orthogonal).

Example 11

Embodiment 11 illustrates a schematic diagram of the relationship between a first set of alternatives and a second set of alternatives according to an embodiment of the present application, as shown in fig. 11. In fig. 11, in case a and case B, the horizontal axis represents time, the vertical axis represents frequency, each unfilled thin-lined rectangle represents a control channel candidate, and the dashed line with an arrow represents the association; in case a or case B, the two bold-lined box rectangles represent the first candidate set and the second candidate set, respectively; in case a, the control channel alternatives included in the first alternative set are associated to the control channel alternatives included in the second alternative set according to a target association rule; in case B, the control channel alternatives included in the first alternative set are associated to the control channel alternatives included in the second alternative set according to association rules other than the target association rules.

In embodiment 11, the first control channel candidate in this application belongs to a first candidate set, where the first candidate set includes a positive integer number of control channel candidates greater than 1; the second control channel candidate in this application belongs to a second candidate set, where the second candidate set includes a positive integer number of control channel candidates greater than 1, and the first candidate set and the second candidate set are not the same; the control channel alternatives comprised by the first alternative set are associated to the control channel alternatives comprised by the second alternative set according to the target association rule in the present application.

As an embodiment, the first control channel alternative is any one of the control channel alternatives included in the first alternative set.

As an embodiment, the second control channel alternative is any one of the control channel alternatives included in the second alternative set.

As an embodiment, any two control channel candidates included in the first candidate Set belong to the same Search Space Set (Search Space Set).

As an embodiment, two control channel candidates in the first candidate Set respectively belong to two different Search Space sets (Search Space sets).

As an embodiment, any two control channel alternatives comprised by said first alternative set are associated to the same CORESET.

As an embodiment, there are two control channel alternatives in the first alternative set, each associated to two different CORESET).

As an embodiment, any two control channel candidates included in the second candidate Set belong to the same Search Space Set (Search Space Set).

As an embodiment, two control channel candidates in the second candidate Set respectively belong to two different Search Space sets (Search Space sets).

As an embodiment, any two control channel alternatives comprised by said second alternative set are associated to the same CORESET.

As an embodiment, there are two control channel alternatives in the second alternative set, each associated to two different CORESET).

As an embodiment there is one control channel alternative belonging to only one of said first alternative set or said second alternative set.

As an embodiment, the first alternative set comprises one control channel alternative that is one control channel alternative other than the control channel alternatives comprised by the second alternative set.

As an embodiment, the second alternative set comprises one control channel alternative that is one control channel alternative other than the control channel alternatives comprised by the first alternative set.

As an embodiment, there is no control channel alternative belonging to both the first alternative set and the second alternative set.

As an embodiment, any one of the control channel alternatives included in the first alternative set and any one of the control channel alternatives included in the second alternative set are different.

As an embodiment, there is one control channel alternative belonging to both the first alternative set and the second alternative set.

As an embodiment, any one of the control channel alternatives comprised in said first alternative set is associated to at least one of the control channel alternatives comprised in said second alternative set according to said target association rule.

As an embodiment, any one of the control channel alternatives comprised by said second alternative set is associated to at least one of the control channel alternatives comprised by said first alternative set according to said target association rule.

As an embodiment, there is one control channel alternative in the first alternative set that is not associated to any control channel alternative comprised in the second alternative set according to the target association rule.

As an embodiment, there is one control channel alternative in the second alternative set that is not associated to any one control channel alternative comprised in the first alternative set according to the target association rule.

Example 12

Embodiment 12 illustrates a schematic diagram of a relationship between a first index and a second index according to an embodiment of the present application, as shown in fig. 12. In fig. 12, rectangular boxes represent a first index, a pseudo-random sequence, a first parameter, and a second index, respectively, and arrows represent an operational relationship or an input-output relationship between them.

In embodiment 12, the index of the first control channel alternative in the present application in the first alternative set in the present application is equal to a first index, and the index of the second control channel alternative in the present application in the second alternative set in the present application is equal to a second index; the first index is a non-negative integer and the second index is a non-negative integer; the number of control channel alternatives included in the second alternative set is equal to a target number; the first index and the pseudorandom sequence are used together to determine a first parameter, and the remainder of the first parameter divided by the target number is used to determine the second index.

For one embodiment, the first index is greater than 0.

For one embodiment, the first index may be equal to 0.

For one embodiment, the second index is greater than 0.

For one embodiment, the second index may be equal to 0.

As an embodiment, the control channel alternatives included in the first alternative set are sequentially indexed according to a predefined order.

As an embodiment, the control channel alternatives included in the first alternative set are sequentially indexed according to the configured order.

As an embodiment, the control channel alternatives included in the first alternative set are sequentially indexed by 0,1,2, … in a predefined order.

As an embodiment, the control channel candidates included in the first candidate set are sequentially indexed by 0,1,2, … according to the configured order.

As an embodiment, the control channel alternatives included in the second alternative set are sequentially indexed according to a predefined order.

As an embodiment, the control channel alternatives included in the second alternative set are sequentially indexed according to the configured order.

As an embodiment, the control channel alternatives included in the second alternative set are sequentially indexed by 0,1,2, … in a predefined order.

As an embodiment, the control channel candidates included in the second candidate set are sequentially indexed by 0,1,2, … according to the configured order.

As an embodiment, the target number is not greater than a first threshold, the first threshold being a positive integer greater than 1, the first threshold being predefined.

As an embodiment, the target number is not greater than a first threshold, the first threshold being a positive integer greater than 1, the first threshold being configurable.

As an embodiment, the target number is not larger than a first threshold, the first threshold being a positive integer larger than 1, the first threshold being related to a subcarrier spacing (SCS) of the BWP to which the second control channel alternative belongs.

As an embodiment, the first information block in the present application is used to determine the target number.

As an embodiment, the first parameter is a positive integer.

As one embodiment, the first parameter is a non-negative integer.

As an embodiment, the first parameter is not an integer.

As one embodiment, the first parameter is a real number.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: the second index is equal to a remainder of the first parameter divided by the target number.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: the remainder of the division of the first parameter by the target number is used by the first node device in this application to determine the second index.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: the remainder of the division of the first parameter by the target number is used by the second node device in this application to determine the second index.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: a remainder of the division of the first parameter by the target number determines the second index according to a predefined operational function.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: the remainder of the division of the first parameter by the target number determines the second index according to a predefined mapping relationship.

As an embodiment, the expression "the remainder of the division of the first parameter by the target number is used to determine the second index" in the claims includes the following meaning: the remainder of the division of the first parameter by the target number is used to determine P3 indices, the second index is one of the P3 indices, and the P3 is a positive integer greater than 1.

As one example, the Pseudo-Random (Pseudo-Random) sequence is an m-sequence.

As an embodiment, the pseudo-random sequence is a Gold sequence.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index and the pseudo-random sequence together are used by the first node device in the present application to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index and the pseudo-random sequence are together used by the second node device in the present application to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index is used to initialize the pseudo-random sequence, one element of which is used to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index is used to initialize the pseudorandom sequence, the first parameter is equal to one element in the pseudorandom sequence.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index is used to determine a feature index, the feature index being a non-negative integer, and elements in the pseudorandom sequence indexed by the feature index are used to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the first index is used to determine a feature index, the feature index being a non-negative integer, an element in the pseudorandom sequence indexed by the feature index being equal to the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain or the target index is used together with the first index and the pseudo-random sequence to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain or the target index is used together with the first index to determine a characteristic index, the characteristic index is a non-negative integer, and an element indexed by the characteristic index in the pseudorandom sequence is used to determine the first parameter.

As an embodiment, the expression "said first index together with the pseudo-random sequence is used in the claims for determining the first parameter" includes the following meanings: the target index is used to initialize the pseudo-random sequence, at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain is used together with the first index to determine a characteristic index, the characteristic index is a non-negative integer, and the element indexed by the characteristic index in the pseudo-random sequence is used to determine the first parameter.

As an embodiment, at least one of the position of the time-frequency resource occupied by the first control channel candidate in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel candidate in the time-frequency domain, or the target index is used to initialize the pseudorandom sequence.

As an embodiment, the expression "at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain, and the target index is used to determine the target association rule" in the claims of the present application includes the following meanings: the target index is used for initializing the pseudo-random sequence, at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the first index are used for determining a characteristic index, the characteristic index is a non-negative integer, and the element indexed by the characteristic index in the pseudo-random sequence is used for determining the first parameter; the association rule includes a functional relationship between the first index and the second index.

As an embodiment, the expression "the first index and the pseudo-random sequence are together used to determine the first parameter" in the claims satisfies the following equation:

f_v＝c(n₁)

wherein f is_vRepresents said first parameter, c (-) represents said pseudorandom sequence, n₁Representing the first index.

wherein f is_vRepresents said first parameter, c (-) represents said pseudorandom sequence, n₁Represents said first index, n_vThe position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain or the target index.

wherein f is_vRepresents said first parameter, c (-) represents said pseudorandom sequence, n₁Represents the first index, M represents a predefined positive integer, or M represents a configurable positive integer, or M represents a positive integer related to the range of the first index, or M represents an upper limit value of the first index, or M represents the smallest positive integer such that the power of 2M is not less than the upper limit value of the first index.

wherein f is_vRepresents said first parameter, c (-) represents said pseudorandom sequence, n₁Represents said first index, n_vRepresenting at least one of a position of a time-frequency resource occupied by the first control channel candidate in a time-frequency domain, a position of a time-frequency resource occupied by the second control channel candidate in a time-frequency domain, or the target index, M representing a predefined positive integer, or M representing a configurable positive integer, orM represents a positive integer related to the range of the first index, or M represents an upper limit value of the first index, or M represents a smallest positive integer such that the power of 2M is not less than the upper limit value of the first index.

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus in a first node device according to an embodiment, as shown in fig. 13. In fig. 13, a first node device processing apparatus 1300 includes a first transceiver 1301 and a first receiver 1302. The first transceiver 1301 includes the transmitter/receiver 456 (including the antenna 460), the transmit processor 455, the receive processor 452, and the controller/processor 490 of fig. 4 of the present application; the first receiver 1302 includes a transmitter/receiver 456 (including an antenna 460), a receive processor 452, and a controller/processor 490 of fig. 4 of the present application.

In embodiment 13, the first transceiver 1301 receives a first information block; the first receiver 1302 monitors M1 control channel alternatives, the first information block being used to determine the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

As an embodiment, the quasi-co-location of the reference signal included in the first control channel candidate and the quasi-co-location of the reference signal included in the second control channel candidate are different.

As an embodiment, each CCE occupied by the first control channel candidate belongs to a first control resource set, and a CCE occupied by the second control channel candidate belongs to a second control resource set; the index of the control resource set resource pool where the first control resource set is provided and the index of the control resource set resource pool where the second control resource set is provided are not equal.

As an embodiment, the first CCE is a CCE occupied by the second control channel candidate, the first CCE includes L1 REGs, mapping of the first CCE to the L1 REGs employs non-interleaved mapping, and L1 is a positive integer greater than 1.

As an embodiment, the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding.

As an embodiment, the first node device assumes that the first control channel candidate carries a first DCI, and the first node device assumes that the second control channel candidate carries a second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

As an embodiment, the first control channel alternative belongs to a first alternative set, and the first alternative set includes a positive integer number of control channel alternatives greater than 1; the second control channel candidate belongs to a second candidate set, the second candidate set includes a positive integer number of control channel candidates greater than 1, and the first candidate set and the second candidate set are different; the control channel alternatives comprised by the first alternative set are associated to the control channel alternatives comprised by the second alternative set according to the target association rule.

For one embodiment, the index of the first control channel alternative in the first alternative set is equal to a first index, and the index of the second control channel alternative in the second alternative set is equal to a second index; the first index is a non-negative integer and the second index is a non-negative integer; the number of control channel alternatives included in the second alternative set is equal to a target number; the first index and the pseudorandom sequence are used together to determine a first parameter, and the remainder of the first parameter divided by the target number is used to determine the second index.

As an example, the first transceiver 1301 transmits a second information block; wherein the second information block is used to indicate whether the first node device supports at least one of the type of association between the second control channel alternative and the first control channel alternative, the type of association between the second control channel alternative and the first control channel alternative supported by the first node device.

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus in the second node device according to an embodiment, as shown in fig. 14. In fig. 14, a second node device processing apparatus 1400 comprises a second transceiver 1401 and a first transmitter 1402. The second transceiver 1401 comprises the transmitter/receiver 416 (including the antenna 460), the receive processor 412, the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application; the first transmitter 1402 includes the transmitter/receiver 416 (including the antenna 460), the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application.

In embodiment 14, the second transceiver 1401 transmits a first information block; the first transmitter 1402 determines M1 control channel alternatives, the first information block being used to indicate the M1 control channel alternatives, the M1 being a positive integer greater than 1; wherein, the first control channel candidate is one of the M1 control channel candidates, and the second control channel candidate is one different from the first control channel candidate; the second control channel alternative is associated with the first control channel alternative, and the association relation between the second control channel alternative and the first control channel alternative accords with a target association rule; at least one of the position of the time-frequency resource occupied by the first control channel alternative in the time-frequency domain, the position of the time-frequency resource occupied by the second control channel alternative in the time-frequency domain and the target index is used for determining the target association rule; the target index is a non-negative integer; the first control channel candidate occupies a positive integer number of CCEs, and the second control channel candidate occupies a positive integer number of CCEs.

As an embodiment, the M1 control channel candidates of the watcher assume that the first control channel candidate carries a first DCI, and the M1 control channel candidates of the watcher assume that the second control channel candidate carries a second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

As an example, the second transceiver 1401 receives a second information block; wherein the second information block is used to indicate whether the M1 monitors of control channel alternatives support at least one of the type of association associated between the second control channel alternative and the first control channel alternative, the second control channel alternative and the first control channel alternative supported by the M1 monitors of control channel alternatives.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. First node equipment or second node equipment or UE or terminal in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control aircraft. The base station device or the base station or the network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like 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 device for wireless communication, comprising:

a first transceiver that receives a first information block;

2. The first node apparatus of claim 1, wherein the quasi co-location of the reference signal included by the first control channel candidate and the quasi co-location of the reference signal included by the second control channel candidate are different.

3. The first node device of claim 1 or 2, wherein each CCE occupied by the first control channel alternative belongs to a first set of control resources and a CCE occupied by the second control channel alternative belongs to a second set of control resources; the index of the control resource set resource pool where the first control resource set is provided and the index of the control resource set resource pool where the second control resource set is provided are not equal.

4. The first node device of any of claims 1-3, wherein a first CCE is a CCE occupied by the second control channel candidates, the first CCE includes L1 REGs, mapping of the first CCE to the L1 REGs employs non-interleaved mapping, and L1 is a positive integer greater than 1.

5. The first node device according to any of claims 1 to 4, wherein the precoding granularity of the control resource set to which the CCE occupied by the second control channel candidate belongs is REG bonding.

6. The first node device of any of claims 1-5, wherein the first node device assumes that the first control channel alternative carries first DCI, and the first node device assumes that the second control channel alternative carries second DCI; the first DCI indicates a first set of time-frequency resources, the second DCI indicates a second set of time-frequency resources, and overlapping time-domain resources exist between the first set of time-frequency resources and the second set of time-frequency resources.

7. The first node device of any of claims 1-6, wherein the first control channel alternative belongs to a first alternative set, the first alternative set comprising a positive integer number of control channel alternatives greater than 1; the second control channel candidate belongs to a second candidate set, the second candidate set includes a positive integer number of control channel candidates greater than 1, and the first candidate set and the second candidate set are different; the control channel alternatives comprised by the first alternative set are associated to the control channel alternatives comprised by the second alternative set according to the target association rule.

8. The first node device of claim 7, wherein an index of the first control channel alternative in the first alternative set is equal to a first index, and an index of the second control channel alternative in the second alternative set is equal to a second index; the first index is a non-negative integer and the second index is a non-negative integer; the number of control channel alternatives included in the second alternative set is equal to a target number; the first index and the pseudorandom sequence are used together to determine a first parameter, and the remainder of the first parameter divided by the target number is used to determine the second index.

9. The first node device of any of claims 1-8, wherein the first transceiver transmits a second information block; wherein the second information block is used to indicate whether the first node device supports at least one of the type of association between the second control channel alternative and the first control channel alternative, the type of association between the second control channel alternative and the first control channel alternative supported by the first node device.

10. A second node device for wireless communication, comprising:

a second transceiver for transmitting the first information block;

11. A method in a first node device for wireless communication, comprising:

receiving a first information block;

12. A method in a second node device for wireless communication, comprising:

transmitting a first information block;