CN115190434A

CN115190434A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN115190434A
Application number: CN202110372613.8A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2022-10-14
Anticipated expiration: 2041-04-07
Also published as: CN115190434B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A node receives a first set of information; monitoring K1 control signaling alternatives in the first time-frequency resource set; the first set of information is used to indicate a first set of control resources to which the first set of time-frequency resources belongs; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of information comprising first information blocks used to indicate a first mapping manner and a second mapping manner; the mapping mode from REG to CCE in the first set of time-frequency resources is one of a first mapping mode or a second mapping mode, and is related to whether the first set of search spaces overlaps with a time-domain resource occupied by the first set of time-frequency resources. The application provides a new CORESET configuration mode for multicast so as to simplify signaling design and optimize system performance.

Description

Method and device used in node of wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a design scheme and apparatus for configuration of control signaling in wireless communication.

Background

The NR Rel-17 standard has begun to discuss how Multicast (Multicast) and Broadcast (Broadcast) traffic transmission is supported under a 5G architecture. In a conventional LTE (Long-Term Evolution ) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system, a base station supports a terminal To receive a Multicast service in a Single Cell Point-To-Multipoint (Single Multicast Broadcast Single Frequency Network) manner through an MBSFN (Multicast Broadcast Single Frequency Network) and an SC-PTM (Single Cell Point-To-Multipoint). Multicast broadcast services based on NR systems will be designed more flexibly, and uplink transmissions of UEs (User Equipment) will need to be redesigned.

Disclosure of Invention

Currently, PTM (Point-To-Multipoint) transmission is under discussion. Based on the existing standard, the number of CORESET (Control Resource Set) that a terminal can be configured is limited, in a scenario where Multi-TRP (multiple transmission and reception points) is configured, a terminal configures up to 6 CORESETs, that is, generally, up to 3 CORESETs are configured on a single TRP, and considering that one CORESET is used as CORESET #0 for initial access, and one CORESET is used for monitoring BFR (Beam Failure Recovery) in a BLF (Beam Link Failure) scenario, the number of CORESETs that can be actually used for MBS (Multicast Broadcast service) and unicast scheduling will be very limited. Meanwhile, one UE may configure at most 10 Search Space sets (Search Space Set) for blind detection of PDCCH (Physical Downlink Control Channel), and the number of Search Space sets is much greater than that of CORESET. When one terminal supports both MBS and unicast services, how to reasonably configure CORESET is a problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the communication scenario of PTM as an example, the present application is also applicable To other scenarios, such as unicast system, and achieves the technical effect similar To that in PTM (Point-To-Multipoint). Furthermore, the adoption of a unified solution for different scenarios (including but not limited to PTM) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in any node of the present application may apply to any other node, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

In order to solve the above problem, the present application discloses a method and an apparatus for controlling signaling configuration. It should be noted that, in case of no conflict, the embodiments and features of the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict. Further, although the purpose of the present application is for cellular networks, the present application can also be used for internet of things and car networking. Further, although the present application was originally directed to multi-carrier communication, the present application can also be applied to single-carrier communication. Further, although the present application was originally intended for multicast, the present application can also be used for unicast communication. Further, although the original purpose of the present application is for the scenario of terminal and base station, the present application is also applicable to the scenario of terminal and terminal, terminal and relay, non-Terrestrial network (NTN), and communication between relay and base station, and similar technical effects in the scenario of terminal and base station are achieved. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to the communication scenario of the terminal and the base station) also helps to reduce hardware complexity and cost.

Further, 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 TS (Technical Specification) 36 series, TS38 series, TS37 series.

The application discloses a method in a first node for wireless communication, comprising:

receiving a first set of information;

monitoring K1 control signaling alternatives in a first time-frequency resource set, wherein K1 is a positive integer greater than 1;

wherein the first information set is used to indicate a first set of control resources, the frequency domain resources occupied by the first set of time-frequency resources belonging to the frequency domain resources occupied by the first set of control resources; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

As an embodiment, one technical feature of the above method is that: when the quantity of the CORESET of the terminal is limited, two mapping modes from CCEs (Control Channel elements) to REGs (Resource Element Group) are configured for one CORESET, wherein one mapping mode is adopted when the CORESET is used for scheduling MBS services, and the other mapping mode is adopted when the CORESET is used for scheduling non-MBS services; the method has the advantages that the CORESET is realized, and various flexible configurations are realized to cope with various application scenes.

As an embodiment, another technical feature of the above method is: the two different mapping modes respectively correspond to the configuration of the two search space sets, so that the flexibility of the configuration of the search space sets is further ensured, and the multiplexing of one CORESET on the two search space sets is realized.

According to one aspect of the application, the first mapping scheme is interleaved and the second mapping scheme is non-interleaved.

As an embodiment, one technical feature of the above method is that: when CORESET is used for MBS service, an interleaving mode is adopted to obtain frequency diversity gain; when CORESET is used for non-MBS service, a non-interleaving mode is adopted to obtain frequency selectivity gain.

According to an aspect of the application, the first mapping manner and the second mapping manner are both interleaved, and an interleaving size corresponding to the first mapping manner is different from an interleaving size corresponding to the second mapping manner.

As an embodiment, one technical feature of the above method is that: two different interleaving sizes are configured for one CORESET to address different application scenarios.

According to an aspect of the present application, a REG bundling Size (Bundle Size) corresponding to the first mapping is different from a REG bundling Size corresponding to the second mapping.

As an embodiment, one technical feature of the above method is that: two different REG bundling sizes are configured for one CORESET to address different application scenarios.

According to an aspect of the application, the first set of information comprises a second information block, the second information block being used to indicate a first precoding granularity and a second precoding granularity; when the target mapping mode is the first mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the first precoding granularity; and when the target mapping mode is the second mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the second pre-coding granularity.

As an embodiment, one technical feature of the above method is that: two different pre-coding granularities are configured for one CORESET to address different application scenarios.

According to an aspect of the application, the first set of information comprises a third information block, the third information block being used to indicate a first type of set of reference signal resources and a second type of set of reference signal resources; the first set of reference signal resources comprises at least one first type of reference signal resource, and the second set of reference signal resources comprises at least one second type of reference signal resource; when the target mapping manner is the first mapping manner, a demodulation reference signal of any one of the K1 control signaling candidates and a first type reference signal resource included in the first type reference signal resource set are Quasi Co-located (QCL, quasi Co-located); when the target mapping mode is the second mapping mode, the demodulation reference signal of any control signaling candidate among the K1 control signaling candidates and one second type reference signal resource included in the second type reference signal resource set are quasi co-located.

As an embodiment, one technical feature of the above method is that: two different sets of TCI (Transmission Configuration Indication) are configured for one CORESET, and the different sets of TCI respectively aim at the Indication of the beam adopted by the PDSCH (Physical Downlink Shared Channel) under MBS services and non-MBS services.

According to an aspect of the application, the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different, and both the first scrambling identity and the second scrambling identity are non-negative integers.

As an embodiment, one technical feature of the above method is that: two different DMRS scrambling identities are configured for one CORESET to be used for scrambling PDCCHs under MBS services and non-MBS services respectively.

According to one aspect of the application, comprising:

receiving a first signaling;

receiving a first signal;

wherein the first signaling occupies one of the K1 control signaling alternatives, the first signaling being used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping scheme is the second mapping scheme, the first signal is used for services other than multicast services.

The application discloses a method in a second node for wireless communication, comprising:

sending a first set of information;

determining K1 control signaling alternatives in a first time-frequency resource set, wherein K1 is a positive integer greater than 1;

wherein the first information set is used to indicate a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

According to an aspect of the present application, the first mapping manner and the second mapping manner are both interleaved, and an interleaving size corresponding to the first mapping manner is different from an interleaving size corresponding to the second mapping manner.

According to an aspect of the present application, the REG bundling size corresponding to the first mapping manner is different from the REG bundling size corresponding to the second mapping manner.

According to an aspect of the application, the first set of information comprises a second information block, the second information block being used to indicate a first precoding granularity and a second precoding granularity; when the target mapping mode is the first mapping mode, any one of the K1 control signaling candidates adopts the first precoding granularity; and when the target mapping mode is the second mapping mode, adopting the second precoding granularity for any control signaling alternative in the K1 control signaling alternatives.

According to an aspect of the application, the first set of information comprises a third information block, the third information block being used to indicate a first type of set of reference signal resources and a second type of set of reference signal resources; the first type of reference signal resource set comprises at least one first type of reference signal resource, and the second type of reference signal resource set comprises at least one second type of reference signal resource; when the target mapping mode is the first mapping mode, a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives and a first type reference signal resource included in the first type reference signal resource set are quasi co-located; when the target mapping mode is the second mapping mode, the demodulation reference signal of any control signaling candidate among the K1 control signaling candidates and one second type reference signal resource included in the second type reference signal resource set are quasi co-located.

According to an aspect of the application, the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling the demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different and both the first scrambling identity and the second scrambling identity are non-negative integers.

According to one aspect of the application, comprising:

sending a first signaling;

transmitting a first signal;

wherein the first signaling occupies one of the K1 control signaling alternatives, the first signaling being used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping method is the second mapping method, the first signal is used for services other than multicast services.

The application discloses a first node for wireless communication, including:

a first receiver to receive a first set of information;

a second receiver, configured to monitor K1 control signaling alternatives in a first set of time-frequency resources, where K1 is a positive integer greater than 1;

wherein the first information set is used to indicate a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

The application discloses a second node for wireless communication, including:

a first transmitter to transmit a first set of information;

a second transmitter, configured to determine K1 control signaling alternatives in a first set of time-frequency resources, where K1 is a positive integer greater than 1;

wherein the first information set is used to indicate a first set of control resources, the frequency domain resources occupied by the first set of time-frequency resources belonging to the frequency domain resources occupied by the first set of control resources; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

As an example, compared with the conventional scheme, the method has the following advantages:

when the number of CORESET of a terminal is limited, configuring two mapping manners of CCEs to REGs for one CORESET, wherein one mapping manner is adopted when the CORESET is used for scheduling MBS services, and the other mapping manner is adopted when the CORESET is used for scheduling non-MBS services; the method has the advantages that one CORESET is realized, and various flexible configurations are realized to cope with various application scenes;

two different mapping modes respectively correspond to the configuration of the two search space sets, so that the flexibility of the configuration of the search space sets is further ensured, and the multiplexing of one CORESET on the two search space sets is realized;

when CORESET is used for MBS services, an interleaving manner is employed to obtain frequency diversity gain; when CORESET is used for non-MBS service, a non-interleaving mode is adopted to obtain frequency selectivity gain;

configuring two different interleaving sizes, two different REG bundling sizes, two different pre-coding granularities, two different TCI sets and two different DMRS scrambling identities for one CORESET so as to aim at application scenes of MBS services and non-MBS services.

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 illustrates a process flow diagram of a first node 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 an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

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

FIG. 5 shows a flow diagram of a first set of information according to an embodiment of the application;

FIG. 6 shows a schematic diagram of a first set of search spaces and a second set of search spaces according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a first information block according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a second information block according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a third information block according to an embodiment of the application;

FIG. 10 shows a schematic diagram of a fourth information block according to an embodiment of the present application;

FIG. 11 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the application;

fig. 12 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 processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first set of information in step 101; in step 102, K1 control signaling alternatives are monitored in the first set of time-frequency resources, where K1 is a positive integer greater than 1.

In embodiment 1, the first information set is used to indicate a first control resource set, where the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included by the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included by the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

In one embodiment, the first set of time-frequency resources and the first set of control resources occupy the same frequency domain resources.

As an embodiment, the first information set is transmitted through RRC (Radio Resource Control) signaling.

As a sub-embodiment of this embodiment, the RRC signaling includes a ControlResourceSet IE (Information Elements) in TS 38.331.

As a sub-embodiment of this embodiment, the RRC signaling includes SearchSpace IE in TS 38.331.

As a sub-embodiment of this embodiment, the RRC signaling includes one or more fields in the PDCCH-Config IE in TS 38.331.

As a sub-embodiment of this embodiment, the RRC signaling includes one or more fields in PDCCH-Config common ie in TS 38.331.

As an embodiment, the first set of time and frequency resources occupies a positive integer number of REs (Resource elements) greater than 1.

As an embodiment, the first set of time-Frequency resources occupies a positive integer number of OFDM (Orthogonal Frequency Division Multiplexing) symbols greater than 1 in a time domain, and the first set of time-Frequency resources occupies at least 1 RB (Resource Block) in a Frequency domain.

As an embodiment, the first set of time-frequency resources is time-frequency resources occupied by a search space set in a monitoring timeslot.

As an embodiment, any one of the K1 control signaling alternatives is a PDCCH Candidate.

As an embodiment, any spatial signaling alternative among the K1 control signaling alternatives occupies at least one CCE.

As an embodiment, any spatial signaling alternative among the K1 control signaling alternatives occupies at least one control channel element among the M1 control channel elements.

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

As an example, the phrase above that the first set of information is used to indicate that the meaning of the first set of control resources includes: the first set of information is used to indicate frequency domain resources occupied by the first set of control resources.

As an embodiment, the phrase that the first set of information is used to indicate that the meaning of the first set of control resources includes: the first set of information is used to indicate a ControlResourceSetId employed by the first set of control resources.

As an embodiment, the first set of time-frequency resources and the first set of control resources occupy the same frequency-domain resources.

As an example, the phrase that the first set of control resources is associated to the first set of search spaces and the second set of search spaces means that: the RRC signaling configuring the first set of search spaces includes a ControlResourceSetId employed by the first set of control resources, and the RRC signaling configuring the second set of search spaces includes a ControlResourceSetId employed by the first set of control resources.

As an example, the phrase that the first set of control resources is associated to the first set of search spaces and the second set of search spaces means that: RRC signaling is used to indicate that the first set of search spaces and the second set of search spaces are associated, and one of the RRC signaling configuring the first set of search spaces or the RRC signaling configuring the first set of search spaces includes a ControlResourceSetId employed by the first set of control resources.

As an embodiment, the first search space set and the second search space set are respectively identified by two different searchspace ids.

As an embodiment, the SearchSpaceId adopted by the first search space set is smaller than the SearchSpaceId adopted by the second search space set.

As an embodiment, the above phrase that the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, means including: CRC (Cyclic Redundancy Check) of PDCCH transmitted in the first search space set is scrambled with the first identity, and CRC of PDCCH transmitted in the second search space set is scrambled with the second identity.

As an embodiment, the above phrase that the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, means including: the monitored DCI (Downlink Control Information) Format (Format) in the first search space set is scrambled with the first identity, and the monitored DCI Format in the second search space set is scrambled with the second identity.

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

As one embodiment, the second identity is a non-negative integer.

As an embodiment, the first identity is an RNTI (Radio Network Temporary Identifier).

As an embodiment, the second identity is an RNTI.

As an embodiment, the first identity is an RNTI (Cell-Radio Network Temporary identity) other than a C-RNTI.

As an embodiment, the first identity is a G-RNTI (Group Radio Network Temporary Identifier).

As an embodiment, the first identity is a GC-RNTI (Group Common Radio Network Temporary Identifier).

As an embodiment, the first identity is SC-RNTI (Single Carrier Radio Network Temporary Identifier ).

As an embodiment, the first identity is SC-PTM-RNTI (Single Carrier Point to Multipoint Radio Network Temporary Identifier).

As an embodiment, the first identity is SC-SFN-RNTI (Single Carrier Single Frequency Network Radio Network Temporary identity ).

As an embodiment, the second identity is a C-RNTI.

As an embodiment, the first information block included in the first information set is a Field (Field) in RRC signaling.

As an embodiment, the first information block included in the first information set includes a cae-REG-MappingType field in a ControlResourceSet IE in TS 38.331.

As an embodiment, the phrase "the time domain resource included in the second search space set overlaps with the time domain resource occupied by the first time frequency resource set" means that: at least one OFDM symbol simultaneously belongs to the time domain resource included by the second search space set and the time domain resource occupied by the first time frequency resource set.

As an embodiment, the phrase "the time domain resources included in the second search space set overlap with the time domain resources occupied by the first time-frequency resource set" means that: and the time domain resources occupied by the first time frequency resource set belong to the time domain resources included by the second search space set.

As an embodiment, the phrase "the time domain resources included in the second search space set overlap with the time domain resources occupied by the first time-frequency resource set" means that: the time domain resources included in the second search space set and the time domain resources occupied by the first time-frequency resource set are the same in a given time Slot (Slot), and the given time Slot is a time Slot to which the time domain resources occupied by the first time-frequency resource set belong.

As one embodiment, the first set of search spaces is reserved for non-unicast transmissions and the second set of search spaces is reserved for unicast transmissions.

As an embodiment, the non-unicast transmission in this application includes a multicast transmission.

As an embodiment, the non-unicast transmission in this application includes multicast transmission.

As an embodiment, the non-unicast transmission in this application includes a broadcast transmission.

As an embodiment, the first set of information is UE-Specific.

As one embodiment, the first set of information is Dedicated (Dedicated) RRC signaling.

As one embodiment, the monitoring includes blind detection.

As one embodiment, the monitoring includes detecting.

As one embodiment, the monitoring includes demodulating.

As one embodiment, the monitoring includes receiving.

As an embodiment, the monitoring comprises energy detection.

As one embodiment, the monitoring includes coherent detection.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 3.

FIG. 2 illustrates a diagram of a network architecture 200 for the 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include a UE (User Equipment) 201, an ng-RAN (next generation radio access Network) 202, an epc (Evolved Packet Core)/5G-CN (5G-Core Network,5G Core Network) 210, an hss (Home Subscriber Server) 220, and an internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 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 node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP, or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of UEs 201 include cellular phones, smart phones, session Initiation Protocol (SIP) phones, laptops, personal Digital Assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband internet of things equipment, machine-type communication equipment, land vehicles, automobiles, wearable equipment, 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. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213.MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 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 in this application.

As an embodiment, the UE201 is a terminal capable of supporting multicast service.

As an embodiment, the UE201 supports transmission of PTMs.

For one embodiment, the UE201 supports SC-PTM transmission.

As an embodiment, the UE201 supports the transmission of multicast services over a unicast channel.

As an embodiment, the UE201 supports retransmission of multicast data over a unicast channel.

As an embodiment, the UE201 supports MBS services.

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

As an embodiment, the gNB203 is a base station with the capability of supporting multicast services.

As an embodiment, the gNB203 supports transmission of PTMs.

As an embodiment, the gNB203 supports SC-PTM transmission.

As an embodiment, the gNB203 supports transmission of multicast traffic over a unicast channel.

As an embodiment, the gNB203 supports retransmission of multicast data over a unicast channel.

As an embodiment, the gNB203 supports MBS services.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) 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 PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for a link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. 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 communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 for the first communication node device and the second communication 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 communication 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 in this application.

As an example, the radio protocol architecture in fig. 3 is applicable to the second node in this application.

As an embodiment, the PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the first set of information in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first set of information in this application is generated in the RRC306.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC352.

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

For one embodiment, the first signal is generated from the PHY301 or the PHY351.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC352.

As an embodiment, the first signal in this application is generated in the RRC306.

As an embodiment, the first node is a terminal.

As an embodiment, the second node is a terminal.

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

As one embodiment, the second node is a Cell (Cell).

As an embodiment, the second node is an eNB.

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

As one embodiment, the second node is used to manage a plurality of base stations.

As an embodiment, the second node is a node for managing a plurality of cells.

As an embodiment, the second node is used to manage a plurality of TRPs (transmission reception points).

As an embodiment, the second node is an MCE (multi cell, multi case Coordination Entity).

Example 4

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

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

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

In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to a controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels that carry the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

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

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

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. The controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communications device 450 to the second communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 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 are configured for use with the at least one processor. The first communication device 450 means at least: firstly, receiving a first information set, and then monitoring K1 control signaling alternatives in the first time-frequency resource set, wherein K1 is a positive integer greater than 1; the first information set is used for indicating a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: firstly, receiving a first information set, and then monitoring K1 control signaling alternatives in the first time-frequency resource set, wherein K1 is a positive integer greater than 1; the first information set is used for indicating a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

As an embodiment, the second communication 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 communication device 410 means at least: firstly, sending a first information set; then, K1 control signaling alternatives are determined in the first time-frequency resource set, wherein K1 is a positive integer larger than 1; the first information set is used for indicating a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: firstly, sending a first information set; then, K1 control signaling alternatives are determined in the first time-frequency resource set, wherein K1 is a positive integer larger than 1; the first information set is used for indicating a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

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

The first communication device 450 is a terminal, as one embodiment.

For one embodiment, the second communication device 410 is a base station.

For one embodiment, the second communication device 410 is a UE.

For one embodiment, the second communication device 410 is a network device.

As an example, the second communication device 410 is a serving cell.

For one embodiment, the second communication device 410 is a TRP.

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

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to monitor K1 control signaling alternatives in a first set of time and frequency resources; at least the first four of the antennas 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are used to determine K1 control signaling alternatives in a first set of time-frequency resources.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive first signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send first signaling.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multiple antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive a first signal; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send a first signal.

Example 5

Embodiment 5 illustrates a flow chart of a first set of information, as shown in fig. 5. In fig. 5, a first node U1 communicates with a second node N2 via a wireless link; it should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U1Receiving a first set of information in step S10; monitoring K1 control signaling alternatives in a first set of time-frequency resources in step S11; receiving a first signaling in step S12; in step S13, a first signal is received.

For theSecond node N2Sending a first set of information in step S20; determining K1 control signaling alternatives in the first set of time-frequency resources in step S21; transmitting a first signaling in step S22; in step S23, a first signal is transmitted.

In embodiment 5, the first information set is used to indicate a first control resource set, where the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode; the first signaling occupies one control signaling alternative from the K1 control signaling alternatives, and the first signaling is used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping scheme is the second mapping scheme, the first signal is used for services other than multicast services.

As an embodiment, the first mapping manner is interleaved and the second mapping manner is non-interleaved.

As an embodiment, the first information block includes an interleaved field and a nonInterleaved field.

As an embodiment, the first mapping method and the second mapping method are both interleaved, and an interleaving size corresponding to the first mapping method is different from an interleaving size corresponding to the second mapping method.

As an embodiment, the first information block includes two Interleaved fields, which are used for the first scene and the second scene, respectively.

In one embodiment, the first information block includes two interlavedsize used for the first scene and the second scene, respectively.

As an example, the interleaving size in this application is interleave size.

As an embodiment, the interleaving size corresponding to the first mapping manner is one of 2, 3, or 6.

As an embodiment, the interleaving size corresponding to the second mapping manner is one of 2, 3, or 6.

As an embodiment, an interleaving size corresponding to the first mapping manner is larger than an interleaving size corresponding to the second mapping manner.

As an embodiment, the first scenario in this application refers to when the time domain resources included in the first search space set overlap with the time domain resources occupied by the first time-frequency resource set, and the second scenario in this application refers to when the time domain resources included in the first search space set do not overlap with the time domain resources occupied by the first time-frequency resource set.

As an embodiment, the REG bundling size corresponding to the first mapping scheme is different from the REG bundling size corresponding to the second mapping scheme.

As an embodiment, the first information block comprises two reg-BundleSize fields, which are used for the first scene and the second scene, respectively.

As an embodiment, the REG bundling size corresponding to the first mapping manner is one of 2, 3, or 6.

As an embodiment, the REG bundling size corresponding to the second mapping manner is one of 2, 3 or 6.

As an embodiment, the REG bundling size corresponding to the first mapping scheme is larger than the REG bundling size corresponding to the second mapping scheme.

As an embodiment, the REG bundling size corresponding to the first mapping scheme is smaller than the REG bundling size corresponding to the second mapping scheme.

As an embodiment, the first set of information comprises a second information block, the second information block being used to indicate a first precoding granularity and a second precoding granularity; when the target mapping mode is the first mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the first precoding granularity; and when the target mapping mode is the second mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the second pre-coding granularity.

As a sub-embodiment of this embodiment, the second information block included in the first information set includes a precoding granularity field in a ControlResourceSet IE in TS 38.331.

As a sub-embodiment of this embodiment, the first precoding granularity is one of "sameaereg-bundle" or "allcontigousrbs".

As a sub-embodiment of this embodiment, the second precoding granularity is one of "sameaereg-bundle" or "allocontegusrbs".

As a sub-embodiment of this embodiment, the second information block includes two precoding granularity fields, which are used for the first scene and the second scene, respectively.

As an embodiment, the first set of information comprises a third information block, the third information block being used to indicate a first type of set of reference signal resources and a second type of set of reference signal resources; the first type of reference signal resource set comprises at least one first type of reference signal resource, and the second type of reference signal resource set comprises at least one second type of reference signal resource; when the target mapping mode is the first mapping mode, a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives and a first type reference signal resource included in the first type reference signal resource set are quasi co-located; when the target mapping mode is the second mapping mode, the demodulation reference signal of any control signaling candidate among the K1 control signaling candidates and one second type reference signal resource included in the second type reference signal resource set are quasi co-located.

As a sub-embodiment of this embodiment, the third information block included in the first information set includes a tci-statepdcch-ToAddList field in a ControlResourceSet IE in TS 38.331.

As a sub-embodiment of this embodiment, the third information block included in the first information set includes a tci-statepdcch-toreaselist field in a ControlResourceSet IE in TS 38.331.

As a subsidiary embodiment of this sub-embodiment, the third information block comprised by the first information set comprises two sets of tci-statesdcch-ToAddList fields which are used for the first and second scenarios, respectively.

As a sub-embodiment of this embodiment, the third information block comprised by the first information set comprises two sets of tc-statesdcch-ToReleaseList fields, which are used for the first and second scenarios, respectively.

As a sub-embodiment of this embodiment, the first type reference signal resource set includes T1 first type reference signal resources, and T1 is a positive integer not less than 1.

For an embodiment, the set of reference signal resources of the second type includes T2 reference signal resources of the second type, and T2 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, any first type of reference signal resource included in the first type of reference signal resource set includes at least one of a CSI-RS resource or an SSB resource.

As a sub-embodiment of this embodiment, any reference signal resource of the first type included in the set of reference signal resources of the first type corresponds to a TCI-State.

As an embodiment, any reference signal resource of the first type included in the set of reference signal resources of the first type corresponds to a TCI-state id.

As a sub-embodiment of this embodiment, any Reference signal resource of the second type included in the set of Reference signal resources of the second type includes at least one of a CSI-RS (Channel-State Information Reference Signals) resource or an SSB (SS/PBCH Block) resource.

As a sub-embodiment of this embodiment, any reference signal resource of the second type included in the set of reference signal resources of the second type corresponds to a TCI-State.

As a sub-embodiment of this embodiment, any reference signal resource of the second type included in the set of reference signal resources of the second type corresponds to a TCI-StateID.

As an embodiment, the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling the demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different, and both the first scrambling identity and the second scrambling identity are non-negative integers.

As a sub-embodiment of this embodiment, the fourth information block included in the first information set includes a pdcch-DMRS-scrimblingid field in a ControlResourceSet IE in TS 38.331.

As a sub-embodiment of this embodiment, the fourth information block included in the first information set includes two pdcch-DMRS-scrimblingid fields, and the two pdcch-DMRS-scrimblingid fields are used for the first scene and the second scene, respectively.

As a sub-embodiment of this embodiment, the first scrambling identity is a non-negative integer.

As a sub-embodiment of this embodiment, the second scrambling identity is a non-negative integer.

As a sub-embodiment of this embodiment, the first scrambling identity is common to a plurality of cells.

As a sub-embodiment of this embodiment, the first scrambling identity is specific to MBS traffic.

As a sub-embodiment of this embodiment, the second scrambling identity is specific to the user equipment.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the physical layer channel occupied by the first signaling is a PDCCH.

As an embodiment, the first signaling is a DCI.

As an embodiment, the first signaling is a downlink grant.

As an embodiment, the physical layer channel occupied by the first signal is a PDSCH.

As an embodiment, the transmission Channel occupied by the first signal is a DL-SCH (Downlink Shared Channel).

As an embodiment, the first signaling is used to indicate a time domain resource occupied by the first signal.

As an embodiment, the first signaling is used to indicate frequency domain resources occupied by the first signal.

As an embodiment, the first signaling is used to indicate an MCS (Modulation and Coding Scheme) adopted by the first signal.

As an embodiment, the first signaling is used to indicate a HARQ (Hybrid Automatic Repeat reQuest) process number of the first signal.

As an embodiment, the first signaling is used to indicate a redundancy version adopted by the first signal.

As an embodiment, the first signal is generated by a Transport Block (TB).

As an embodiment, the first signal is generated by one CB (Code Block).

As an embodiment, the first signal is generated by one CBG (Code Block Group).

As an embodiment, the phrase determining the meaning of K1 control signaling alternatives in the first set of time-frequency resources includes: and confirming the position of the RE occupied by any control signaling alternative in the K1 control signaling alternatives in the first time-frequency resource set.

As an embodiment, the above phrase determining the meaning of K1 control signaling alternatives in the first set of time-frequency resources includes: and confirming the position of the CCE occupied by any control signaling alternative in the K1 control signaling alternatives in the first time-frequency resource set.

As an embodiment, the phrase determining the meaning of K1 control signaling alternatives in the first set of time-frequency resources includes: and confirming the position of the RE occupied by at least one control signaling alternative in the K1 control signaling alternatives in the first time-frequency resource set.

As an embodiment, the phrase determining the meaning of K1 control signaling alternatives in the first set of time-frequency resources includes: and confirming the position of the CCE occupied by at least one control signaling alternative in the K1 control signaling alternatives in the first time-frequency resource set.

As an embodiment, the phrase determining the meaning of K1 control signaling alternatives in the first set of time-frequency resources includes: and confirming the position of the control signaling alternative occupied by the first signaling in the K1 control signaling alternatives included in the first time-frequency resource set.

Example 6

Embodiment 6 illustrates a schematic diagram of a first set of search spaces and a second set of search spaces, as shown in fig. 6. In fig. 6, a rectangular frame filled with a left oblique line represents a time domain resource occupied by the first search space set, a rectangular frame filled with a right oblique line represents a time domain resource occupied by the second search space set, and a rectangular frame filled with a square grid represents a time domain resource occupied by both the first search space set and the second search space set; the frequency domain resources occupied by the first search space set and the second search space set are frequency domain resources corresponding to the first control resource set; when the first time-frequency resource set in the application belongs to the time domain resources represented by the rectangular frame filled with the squares, the first time-frequency resource set adopts the first mapping mode in the application; when the first time-frequency resource set in the present application does not belong to the time domain resources represented by the rectangular frame of the filled square grid, the second mapping manner in the present application is adopted by the first time-frequency resource set.

As an embodiment, the time domain resources occupied by the first search space set are periodically distributed.

As an embodiment, the time domain resources occupied by the second search space set are periodically distributed.

Example 7

Embodiment 7 illustrates a schematic diagram of a first information block, as shown in fig. 7. In fig. 7, the first information block includes two fields related to the indication relationship between CCEs and REGs, which are respectively a cae-REG-MappingType-MBS and a cae-REG-MappingType, where the cae-REG-MappingType-MBS is a first mapping manner for the MBS, and the cae-REG-MappingType is a second mapping manner for the non-MBS.

Example 8

Embodiment 8 illustrates a schematic diagram of a second information block, as shown in fig. 8. In fig. 8, the second information block includes two configurations regarding precoding granularity, which are precoding granularity-MBS and precoding granularity, where the precoding granularity-MBS is a first mapping manner for an MBS and the precoding granularity is a second mapping manner for a non-MBS.

Example 9

Embodiment 9 illustrates a schematic diagram of a third information block, as shown in fig. 9. In fig. 9, the third information block includes two sets of TCI-related configurations, one of which includes TCI-statepdcch-ToReleaseList-MBS and TCI-statepdcch-ToAddList-MBS, for MBS services; the other group comprises tci-StatesPDCCH-ToReleaseList and tci-StatesPDCCH-ToAddList and aims at non-MBS services.

Example 10

Embodiment 10 illustrates a schematic diagram of a fourth information block, as shown in fig. 10. In fig. 10, the fourth information block includes configuration information of two scrambling codes of DMRSs adopted by the PDCCH, one of which is PDCCH-DMRS-ScramblingID-MBS, for MBS services; and the other is pdcch-DMRS-ScramblingID aiming at non-MBS services.

Example 11

Embodiment 11 illustrates a block diagram of a structure in a first node, as shown in fig. 11. In fig. 11, a first node 1100 comprises a first receiver 1101 and a second receiver 1102.

A first receiver 1102 receiving a first set of information;

a second receiver 1102, configured to monitor K1 control signaling alternatives in a first set of time-frequency resources, where K1 is a positive integer greater than 1;

in embodiment 11, the first information set is used to indicate a first control resource set, where a frequency domain resource occupied by the first time-frequency resource set belongs to a frequency domain resource occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

As an embodiment, the first mapping scheme is interleaved and the second mapping scheme is non-interleaved.

As an embodiment, the first set of information comprises a second information block, the second information block being used to indicate a first precoding granularity and a second precoding granularity; when the target mapping mode is the first mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the first precoding granularity; and when the target mapping mode is the second mapping mode, adopting the second precoding granularity for any control signaling alternative in the K1 control signaling alternatives.

As an embodiment, the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different, and both the first scrambling identity and the second scrambling identity are non-negative integers.

For one embodiment, the second receiver 1102 receives a first signaling, and the second receiver 1102 receives a first signal; the first signaling occupies one control signaling alternative from the K1 control signaling alternatives, and the first signaling is used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping scheme is the second mapping scheme, the first signal is used for services other than multicast services.

For one embodiment, the first receiver 1101 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the second receiver 1102 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

Example 12

Embodiment 12 illustrates a block diagram of the structure in a second node, as shown in fig. 12. In fig. 12, the second node 1200 comprises a first transmitter 1201 and a second transmitter 1202.

A first transmitter 1201 that transmits a first set of information;

a second transmitter 1202, configured to determine K1 control signaling alternatives in a first set of time-frequency resources, where K1 is a positive integer greater than 1;

in embodiment 12, the first information set is used to indicate a first control resource set, where a frequency domain resource occupied by the first time-frequency resource set belongs to a frequency domain resource occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.

As an embodiment, the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different and both the first scrambling identity and the second scrambling identity are non-negative integers.

For one embodiment, the second transmitter 1202 transmits a first signaling and the second transmitter 1202 transmits a first signal; the first signaling occupies one control signaling alternative from the K1 control signaling alternatives, and the first signaling is used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping scheme is the second mapping scheme, the first signal is used for services other than multicast services.

For one embodiment, the first transmitter 1201 includes at least the first 6 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second transmitter 1202 includes at least the first 6 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

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 a program instructing relevant hardware, 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. The first node in this application includes but not limited to wireless communication devices such as cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicle, RSU, aircraft, unmanned aerial vehicle, remote control plane. The second node in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an aerial base station, an RSU, an unmanned aerial vehicle, a test device, a transceiver device or a signaling tester simulating a partial function of a 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 for use in wireless communications, comprising:

a first receiver to receive a first set of information;

2. The first node of claim 1, wherein the first mapping is interleaved and the second mapping is non-interleaved.

3. The first node of claim 1, wherein the first mapping scheme and the second mapping scheme are both interleaved, and wherein an interleaving size corresponding to the first mapping scheme is different from an interleaving size corresponding to the second mapping scheme.

4. The first node of claim 3, wherein a REG bundling size corresponding to the first mapping scheme is different from a REG bundling size corresponding to the second mapping scheme.

5. The first node according to any of claims 1 to 4, wherein the first set of information comprises a second block of information, the second block of information being used to indicate a first precoding granularity and a second precoding granularity; when the target mapping mode is the first mapping mode, any control signaling alternative of the K1 control signaling alternatives adopts the first precoding granularity; and when the target mapping mode is the second mapping mode, adopting the second precoding granularity for any control signaling alternative in the K1 control signaling alternatives.

6. The first node according to any of claims 1-5, wherein the first set of information comprises a third information block, the third information block being used to indicate a first type of set of reference signal resources and a second type of set of reference signal resources; the first type of reference signal resource set comprises at least one first type of reference signal resource, and the second type of reference signal resource set comprises at least one second type of reference signal resource; when the target mapping mode is the first mapping mode, a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives and a first type reference signal resource included in the first type reference signal resource set are quasi co-located; when the target mapping mode is the second mapping mode, the demodulation reference signal of any control signaling candidate among the K1 control signaling candidates and one second type reference signal resource included in the second type reference signal resource set are quasi co-located.

7. The first node according to any of claims 1 to 6, wherein the first set of information comprises a fourth information block, the fourth information block being used to indicate a first scrambling identity and a second scrambling identity; when the target mapping mode is the first mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the first scrambling identity; when the target mapping mode is the second mapping mode, scrambling a demodulation reference signal of any control signaling alternative in the K1 control signaling alternatives by using the second scrambling identity; the first scrambling identity and the second scrambling identity are different and both the first scrambling identity and the second scrambling identity are non-negative integers.

8. The first node according to any of claims 1-7, wherein the second receiver receives a first signaling and the second receiver receives a first signal; the first signaling occupies one of the K1 control signaling alternatives, the first signaling being used for scheduling the first signal; when the target mapping mode is the first mapping mode, the first signal is used for multicast service; when the target mapping scheme is the second mapping scheme, the first signal is used for services other than multicast services.

9. A second node for use in wireless communications, comprising:

a first transmitter to transmit a first set of information;

10. A method in a first node in wireless communication, comprising:

receiving a first set of information;

wherein the first information set is used to indicate a first set of control resources, the frequency domain resources occupied by the first set of time-frequency resources belonging to the frequency domain resources occupied by the first set of control resources; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set and the time domain resources occupied by the first time frequency resource set are not overlapped, the target mapping manner is the second mapping manner.

11. A method in a second node in wireless communication, comprising:

sending a first set of information;

wherein the first information set is used to indicate a first control resource set, and the frequency domain resources occupied by the first time-frequency resource set belong to the frequency domain resources occupied by the first control resource set; the first set of control resources is associated to a first set of search spaces and a second set of search spaces, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first identity and the second identity being different; the first information set comprises a first information block, and the first information block included in the first information set is used for indicating a first mapping mode and a second mapping mode; the first set of time-frequency resources includes M1 control channel elements, and the first set of time-frequency resources includes Q1 resource element groups, where M1 and Q1 are both positive integers greater than 1; the mapping mode from the Q1 resource unit groups to the M1 control channel units is a target mapping mode; the time domain resources included in the second search space set are overlapped with the time domain resources occupied by the first time-frequency resource set, and the target mapping mode is related to whether the time domain resources included in the first search space set are overlapped with the time domain resources occupied by the first time-frequency resource set or not; when the time domain resources included in the first search space set and the time domain resources occupied by the first time-frequency resource set are overlapped, the target mapping mode is the first mapping mode; or when the time domain resources included in the first search space set are not overlapped with the time domain resources occupied by the first time-frequency resource set, the target mapping mode is the second mapping mode.