CN113225745B

CN113225745B - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113225745B
Application number: CN202010069308.7A
Authority: CN
Inventors: 刘铮; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2022-09-27
Anticipated expiration: 2040-01-21
Also published as: CN113225745A; WO2021147892A1

Abstract

A method and apparatus in a node for wireless communication is disclosed. The node receives the first information and the second information, monitors a first signaling in the first alternative resource set and operates the first signal; the first information is used to determine a target carrier, the second information is used to determine a first indication; the frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; the first alternative resource set comprises a positive integer of alternative resource groups, and belongs to a target resource pool; a target indication is used to determine the first set of alternative resources from the target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication. The scheduling performance is improved.

Description

Method and apparatus in a node used for wireless communication

Technical Field

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

Background

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

In order to be able to adapt to various application scenarios and meet different requirements, the WI of Dynamic Spectrum Sharing (DSS) and the WI enhanced by Multi-Radio Dual-Connectivity (MR-DC) under NR are also used to support more flexible and efficient Multi-carrier communication at 3GPP RAN #85 time congress.

Disclosure of Invention

In a multi-Carrier communication procedure such as Carrier Aggregation (CA), Cross Carrier Scheduling (Cross Carrier Scheduling) is supported. In a network supported by an existing standard, for example, R16 and LTE (Long Term Evolution) and NR (New Radio interface) of previous versions, for data transmission in a Primary Carrier (PCC) or a Primary Cell (Pcell), only self-scheduling of the present Carrier is supported, and cross-Carrier scheduling in which a Secondary Carrier (SCC) or a Secondary Cell (Scell) is used as a scheduling Carrier is not supported. Support for cross-carrier scheduling of secondary carriers to primary carriers is decided in WI for dynamic spectrum sharing in version R17.

The present application discloses a solution to the problem of scheduling in networks supporting multi-carrier transmission. It should be noted that, in the description of the present application, only dynamic spectrum sharing is adopted as a typical application scenario or example; the present application is also applicable to other scenarios (such as other multi-carrier transmission or multi-channel transmission, or other networks with specific requirements on data scheduling) besides dynamic spectrum sharing facing similar problems, and can also achieve technical effects similar to those in the dynamic spectrum sharing scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to dynamic spectrum sharing and multicarrier transmission scenarios) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.

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

receiving first information and second information, wherein the first information is used for determining a target carrier, the second information is used for determining a first indication, and the first indication is a positive integer;

monitoring a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier;

operating a first signal when the first signaling is detected; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal;

wherein the operation is a transmission or the operation is a reception; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

As an embodiment, whether the target indication is equal to the first indication is determined by whether the first Carrier and the target Carrier are the same, so that the distribution of PDCCH candidates (candidates) when a Secondary Carrier (SCC) or a Secondary Cell (Secondary Cell, Scell) adopts self-Scheduling is changed according to whether the Secondary Carrier simultaneously supports Cross-Carrier Scheduling (Cross-Carrier Scheduling) of a Primary Carrier (Primary Component Carrier, PCC) or a Primary Cell (Primary Cell, Pcell), the collision Probability (Blocking Probability) of the PDCCH Scheduling the Primary Carrier is reduced, and the transmission performance of control information of the Primary Carrier is ensured.

As an embodiment, the target indication is equal to the first indication, which implements an offset of a starting PDCCH Candidate (Candidate) when the Secondary Carrier (SCC) or the Secondary Cell (Scell) performs self-Scheduling, avoids a coincidence with a Cross-Carrier Scheduling (Cross-Carrier Scheduling) Primary Carrier (Primary Component Carrier, PCC) or a PDCCH Candidate (Candidate) of the Primary Cell (Pcell), and improves transmission performance of control information of the Primary Carrier and the Secondary Carrier.

According to an aspect of the present application, the above method is characterized in that, when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first field is carried in the first signaling, and a value of the first field is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

As an embodiment, when the first Carrier and the target Carrier are the same, the first domain is carried in the first signaling, which ensures that the Scheduling information is blurred when a starting PDCCH Candidate (Candidate) and a PDCCH Candidate (Candidate) of a Cross-Carrier Scheduling (Cross-Carrier Scheduling) Primary Carrier (Primary Component Carrier, PCC) or a Primary Cell (Primary Cell, Pcell) are overlapped when a Secondary Carrier (SCC) or a Secondary Cell (Scell) performs self-Scheduling, thereby ensuring effective transmission of control information.

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

receiving third information;

wherein the third information is used to determine that the first carrier is self-scheduled.

According to an aspect of the application, the above method is characterized in that the second information and the first information are carried over two different domains in the same signaling, or the second information is carried over signaling for the first carrier.

As an embodiment, the second information and the first information are carried in two different domains in the same signaling, or the second information is carried in the signaling for the first Carrier, so that a location indication of a starting PDCCH Candidate (serving) when a Secondary Carrier (Secondary Component Carrier, SCC) or a Secondary Cell (Secondary Cell, Scell) self-schedules can reuse or reinterpret (reinterpress) an existing signaling format, and an additional signaling configuration for each Secondary Carrier (Secondary Component Carrier, SCC) or Secondary Cell (Secondary Cell, Scell) is avoided, which reduces overhead without reducing flexibility of Cross-Carrier Scheduling (Cross-Carrier Scheduling) configuration.

According to an aspect of the present application, the method is characterized in that a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to determine a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

According to an aspect of the present application, the method is characterized by, when the first carrier and the target carrier are the same, further comprising:

monitoring a second signaling in a second set of alternative resources;

wherein, the frequency domain resource occupied by the second alternative resource set belongs to the first carrier, the second signaling is used to determine the time-frequency resource occupied by the signal transmitted on the second carrier, the second alternative resource set includes a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

As an embodiment, with the second indication equal to 0, when a Primary Carrier (PCC) or a Primary Cell (Pcell) is Cross-Carrier Scheduled (Cross-Carrier Scheduled), it is guaranteed that the performance of the PDCCH scheduling the Primary Carrier across carriers is comparable to the PDCCH performance when the Primary Carrier (PCC) or the Primary Cell (Pcell) is self-Scheduled.

receiving fourth information;

wherein the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

transmitting first information and second information, wherein the first information is used for indicating a target carrier, the second information is used for indicating a first indication, and the first indication is a positive integer;

sending a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier;

executing the first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for indicating the time frequency resource occupied by the first signal;

wherein the performing is receiving or the performing is transmitting; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

sending third information;

wherein the third information is used to indicate that the first carrier is self-scheduled.

According to an aspect of the present application, the method is characterized in that a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to indicate a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

transmitting second signaling in the second alternative resource set;

wherein, the frequency domain resource occupied by the second alternative resource set belongs to the first carrier, the second signaling is used for indicating the time-frequency resource occupied by the signal transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

sending fourth information;

wherein the fourth information is used to indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

a first receiver to receive first information and second information, the first information being used to determine a target carrier, the second information being used to determine a first indication, the first indication being a positive integer;

the second receiver monitors a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier;

a first handler to manipulate a first signal when the first signaling is detected; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal;

The application discloses a second node equipment for wireless communication, characterized by comprising:

a first transmitter that transmits first information and second information, the first information being used to indicate a target carrier, the second information being used to indicate a first indication, the first indication being a positive integer;

the second transmitter is used for sending a first signaling in a first alternative resource set, and frequency domain resources occupied by the first alternative resource set belong to a first carrier;

a second processor for executing the first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for indicating the time-frequency resource occupied by the first signal;

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

by adopting the method in the present application, it is achieved that the distribution of PDCCH candidates (candidates) when a Secondary Carrier (Secondary Component Carrier, SCC) or a Secondary Cell (Secondary Cell, Scell) adopts self-Scheduling changes according to whether the Secondary Carrier simultaneously supports Cross-Carrier Scheduling (Cross-Carrier Scheduling) of a Primary Carrier (Primary Component Carrier, PCC) or a Primary Cell (Primary Cell, Pcell), so as to reduce the collision Probability (Blocking Probability) of the PDCCH that schedules the Primary Carrier, and ensure the transmission performance of control information of the Primary Carrier.

The method in the present application realizes the offset of the starting PDCCH Candidate (Candidate) when the Secondary Carrier (SCC) or the Secondary Cell (Scell) adopts self-Scheduling, avoids the coincidence with the PDCCH Candidate (Candidate) of the Primary Carrier (PCC) or the Primary Cell (Pcell) in Cross-Carrier Scheduling (Cross-Carrier Scheduling), and improves the transmission performance of the control information of the Primary Carrier and the Secondary Carrier.

By adopting the method in the present application, the ambiguity of the Scheduling information is ensured when the starting PDCCH Candidate (Candidate) and the Cross-Carrier Scheduling (Cross-Carrier Scheduling) Primary Carrier (Primary Component Carrier, PCC) coincide when the Secondary Carrier (SCC) or the Secondary Cell (Scell) self-schedules, and the PDCCH Candidate (Candidate) of the Primary Cell (Primary Cell, Pcell) coincide, thereby ensuring the effective transmission of the control information.

By adopting the method in the present application, the location indication of the starting PDCCH Candidate (Candidate) when the Secondary Carrier (Secondary Component Carrier, SCC) or the Secondary Cell (Secondary Cell, Scell) self-schedules can reuse or reinterpret (relay) the existing signaling format, and avoid additional signaling configuration for each Secondary Carrier (Secondary Component Carrier, SCC) or the Secondary Cell (Secondary Cell, Scell), thereby reducing overhead without reducing flexibility of Cross-Carrier Scheduling (Cross-Carrier Scheduling) configuration.

When a Primary Carrier (Primary Component Carrier, PCC) or a Primary Cell (Primary Cell, Pcell) is Cross-Carrier Scheduled (Cross-Carrier Scheduled), it is ensured that the performance of the PDCCH of the Cross-Carrier Scheduled Primary Carrier is comparable to the performance of the PDCCH of the Primary Carrier (Primary Component Carrier, PCC) or the Primary Cell (Primary Cell, Pcell) during self-scheduling.

Drawings

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

fig. 1 shows a flow diagram of first information, second information, first signaling and first signals according to an embodiment of the application;

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

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

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

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

FIG. 6 shows a wireless signal transmission flow diagram according to another embodiment of the present application;

FIG. 7 shows a wireless signal transmission flow diagram according to another embodiment of the present application;

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

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

fig. 10 shows a schematic diagram of a relationship between a target carrier and a second carrier according to an embodiment of the present application;

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

FIG. 12 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;

fig. 13 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present application.

Detailed Description

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

Example 1

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

In embodiment 1, a first node device in the present application receives, in step 101, first information and second information, where the first information is used to determine a target carrier, and the second information is used to determine a first indication, where the first indication is a positive integer; in step 102, monitoring a first signaling in a first alternative resource set, where a frequency domain resource occupied by the first alternative resource set belongs to a first carrier; operating a first signal when the first signaling is detected in step 103; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; wherein the operation is a transmission or the operation is a reception; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

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

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

As an embodiment, the first information is transmitted through higher layer signaling.

As an embodiment, the first information is transmitted through physical layer signaling.

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

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

As an embodiment, the first Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the first Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

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

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

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

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

As one embodiment, the first information is Cell Specific.

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

As an embodiment, the first information is Carrier Specific.

As one embodiment, the first information is configured Per Carrier (Per Carrier).

As an embodiment, the first information is Specific to a Serving Cell (Serving Cell Specific).

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

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

As an embodiment, the first Information belongs to an IE (Information Element) in RRC signaling "crosscarrierschedingconfig".

As an embodiment, the first Information belongs to an IE (Information Element) in RRC signaling "ServingCellConfig".

As an embodiment, the first Information belongs to an IE (Information Element) in RRC signaling configuring a Primary Cell (Pcell) "cross carrier scheduling configuration".

As an embodiment, the first Information belongs to an IE (Information Element) in RRC signaling configuring a Primary Cell (Pcell) "ServingCellConfig".

As an embodiment, the first Information belongs to a Field (Field) "scheduling cell id" in an IE (Information Element ) "cross carrier scheduling config" in RRC signaling.

As an embodiment, the first Information belongs to a Field (Field) "scheduling Cell id" in IE (Information Element ) "cross carrier scheduling configuration" in RRC signaling configuring a Primary Cell (Primary Cell, Pcell).

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used by the first node device in this application to determine the target carrier.

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used to explicitly indicate the target carrier.

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used to implicitly indicate the target carrier.

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used to indirectly indicate the target carrier.

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used to indicate an index of the target carrier, which is used to determine the target carrier.

As an example, the above sentence "the first information is used to determine the target carrier" includes the following meanings: the first information is used to indicate a Serving Cell Index (Serving Cell Index) corresponding to the target carrier, and the Serving Cell Index corresponding to the target carrier is used to determine the target carrier.

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

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

As an embodiment, the second information is transmitted through higher layer signaling.

As an embodiment, the second information is transmitted through physical layer signaling.

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

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

As an embodiment, the second Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the second Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

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

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

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

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

As an embodiment, the second information is Cell Specific.

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

As an embodiment, the second information is Carrier Specific.

As one embodiment, the second information is configured Per Carrier (Per Carrier).

As an embodiment, the second information is Specific to a Serving Cell (Serving Cell Specific).

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

As an embodiment, when the first node device is configured with more than 1 carrier, the second information is shared by the more than 1 carrier.

As an embodiment, when the first node device is configured with more than 1 serving cell, the second information is shared by the more than 1 serving cells.

As an embodiment, when the first node device is configured with more than 1 carrier, the second information is applicable to any one carrier of the more than 1 carrier.

As an embodiment, when the first node device is configured with more than 1 serving cell, the second information is applicable to any one serving cell of the more than 1 serving cells.

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

As an embodiment, the second Information belongs to an IE (Information Element) in RRC signaling "crosscarrierschedingconfig".

As an embodiment, the second Information belongs to an IE (Information Element) in RRC signaling "ServingCellConfig".

As an embodiment, the second Information belongs to an IE (Information Element) in RRC signaling configuring a Primary Cell (Pcell) "cross carrier scheduling configuration".

As an embodiment, the second Information belongs to an IE (Information Element) in RRC signaling configuring a Primary Cell (Pcell) "ServingCellConfig".

As an embodiment, the second Information belongs to a Field (Field) "cif-scheduling cell" in IE (Information Element ) "cross carrier scheduling configuration" in RRC signaling.

As an embodiment, the second Information belongs to a Field (Field) "cif-scheduling Cell" in the IE (Information Element ) "cross carrier scheduling configuration" in RRC signaling configuring a Primary Cell (Primary Cell, Pcell).

As an embodiment, the second Information belongs to a Field (Field) "cif-office scheduling cell" in an IE (Information Element ) "cross carrier scheduling configuration" in RRC signaling.

As an embodiment, the second Information belongs to a Field (Field) "cif-scheduling Cell" in an IE (Information Element ) "cross carrier scheduling configuration" in RRC signaling configuring a Primary Cell (Pcell).

As an example, the above sentence "the second information is used to determine the first indication" includes the following meanings: the second information is used by the first node device in the present application to determine the first indication.

As an example, the above sentence "the second information is used to determine the first indication" includes the following meanings: the second information is used to explicitly indicate the first indication.

As an example, the above sentence "the second information is used to determine the first indication" includes the following meanings: the second information is used to implicitly indicate the first indication.

As an embodiment, the above sentence "the second information is used to determine the first indication" includes the following meaning: the second information is used to indirectly indicate the first indication.

As an embodiment, the second information and the first information are carried through two different RRC signaling.

As an embodiment, the second information and the first information are carried through the same RRC signaling.

As an embodiment, the second information and the first information are carried by two different IEs in the same RRC signaling.

As an embodiment, the second information and the first information are carried through two different fields (fields) in the same IE in the same RRC signaling.

As an embodiment, the second information and the first information are both carried by signaling for the second carrier in this application.

As an embodiment, the second information and the first information are both carried by signaling of a serving cell corresponding to the second carrier in this application.

As an embodiment, the second information and the first information are both carried by signaling for the same carrier.

As an embodiment, the second information and the first information are both carried by signaling of a serving cell corresponding to the same carrier.

As an embodiment, the second information and the first information are both carried by the same IE in signaling of a serving cell corresponding to the same carrier.

As an embodiment, an index of a serving cell corresponding to the second information is the same as an index of a serving cell corresponding to the first information.

As an embodiment, the target carrier corresponds to a Serving Cell (Serving Cell).

As an embodiment, the target Carrier is one Component Carrier (Component Carrier) in Carrier Aggregation (CA).

As one embodiment, the target carrier is a secondary carrier used for cross-carrier scheduling of one primary carrier.

As an embodiment, the serving cell corresponding to the target carrier is a secondary cell (Scell) used for cross-carrier scheduling of a primary cell (Pcell).

As an embodiment, the target Carrier is one Component Carrier (Component Carrier) in an MCG (Master Cell Group) in Carrier Aggregation (CA).

As an embodiment, the target Carrier is one Component Carrier (Component Carrier) in SCG (Secondary Cell Group) in Carrier Aggregation (CA).

As an embodiment, the target Carrier is a Secondary Component Carrier (SCC).

As an embodiment, the target carrier corresponds to a Secondary Cell (Scell).

As an embodiment, the target carrier corresponds to a Secondary Cell (Scell) in an MCG (Master Cell Group).

As an embodiment, the target carrier corresponds to a Secondary Cell (Scell) in an SCG (Secondary Cell Group).

As an embodiment, the target carrier corresponds to a Primary Cell (Pcell) in an SCG (Secondary Cell Group).

As an embodiment, the target carrier corresponds to a PSCell (Primary SCG Cell, a Primary Cell in a secondary Cell group).

As an embodiment, the target carrier is identified by a Serving Cell Index (Serving Cell Index).

As an embodiment, the first indication is equal to a value of one Carrier Indicator Field (CIF).

As an embodiment, the first indication is equal to a value of a Carrier Indicator Field (CIF) in one PDCCH (Physical Downlink Control Channel).

As an embodiment, the first indication is equal to a value of a Carrier Indicator Field (CIF) in the first signaling.

As an embodiment, the first indication is equal to a value of a Carrier Indicator Field (CIF) in a signaling other than the first signaling.

As an embodiment, the first indication is used to determine a value of a Carrier Indicator Field (CIF) in a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first indication is a value of a Carrier Indicator Field (CIF) in a PDCCH that schedules a signal in a Carrier to which a frequency domain resource occupied by a signal carrying the first information belongs.

As an embodiment, the first indication is a value of a Carrier Indicator Field (CIF) in a PDCCH of a signal in a cross-Carrier scheduling Primary Cell (Pcell).

As an embodiment, the first indication is a value of a Carrier Indicator Field (CIF) in a PDCCH that schedules a signal in the second Carrier in the present application.

As one embodiment, the first indication is a Carrier Indicator (Carrier Indicator).

For one embodiment, the first indication is equal to a Serving Cell Index (Serving Cell Index).

As an embodiment, the first indication is equal to a positive integer between 1 and 7.

As an embodiment, the first indication may be greater than 7.

As an embodiment, the first indication is equal to a positive integer between 1 and 31.

As an embodiment, said first indication is equal to the value of Field (Field) "cif-inputschduling cell" in the IE (Information Element ) "crosscarrierschdulingconfig".

As an embodiment, said first indication is equal to the value of Field (Field) "cif-scheduling cell" in the IE (Information Element) "cross carrier scheduling config".

As an embodiment, the first carrier corresponds to a Serving Cell (Serving Cell).

As an embodiment, the first Carrier is one Component Carrier (Component Carrier) in Carrier Aggregation (CA).

As an embodiment, the first Carrier is one Secondary Carrier (SCC) in an MCG (Master Cell Group) in Carrier Aggregation (CA).

As an embodiment, the first Carrier is one Secondary Carrier (SCC) in a SCG (Secondary Cell Group) in Carrier Aggregation (CA).

As an embodiment, the first Carrier is a Secondary Component Carrier (SCC).

As an embodiment, the first carrier corresponds to a Secondary Cell (Scell).

As an embodiment, the first carrier corresponds to a Secondary Cell (Scell) in an MCG (Master Cell Group).

As an embodiment, the first carrier corresponds to a Secondary Cell (Scell) in an SCG (Secondary Cell Group).

As an embodiment, the first carrier corresponds to a Primary Cell (Pcell) in a SCG (Secondary Cell Group).

As an embodiment, the first carrier corresponds to a PSCell (Primary SCG Cell, a Primary Cell in a secondary Cell group).

As an embodiment, the first carrier corresponds to a Serving Cell Index (Serving Cell Index).

As an embodiment, the first set of alternative resources includes time-frequency resources.

As an embodiment, the first set of alternative resources comprises only one set of alternative resources.

For one embodiment, the first set of alternative resources includes more than one set of alternative resources.

As an embodiment, when the first alternative resource set includes more than one alternative resource group, any two alternative resource groups included in the first alternative resource set are Orthogonal in time-frequency domain (Orthogonal).

As an embodiment, when the first alternative resource set includes more than one alternative resource group, any two alternative resource groups included in the first alternative resource set do not overlap in time-frequency domain (Non-overlapped).

As an embodiment, when the first alternative resource set includes more than one alternative resource group, there are two alternative resource groups in the first alternative resource set that are Non-Orthogonal in time-frequency domain (Non-Orthogonal).

As an embodiment, when the first alternative resource set includes more than one alternative resource group, there are two alternative resource groups in the first alternative resource set that are completely Overlapped (Full Overlapped) or partially Overlapped (Partial Overlapped) in time-frequency domain.

As an embodiment, when the first alternative resource set includes more than one alternative resource group, the number of time-frequency resources included in any two alternative resource groups in the first alternative resource set is equal.

As an embodiment, when the first alternative Resource set includes more than one alternative Resource group, the number of Resource units (REs, Resource elements) included in any two alternative Resource groups in the first alternative Resource set is equal.

As an embodiment, when the first candidate resource set includes more than one candidate resource group, any two candidate resource groups in the first candidate resource set correspond to the same Aggregation Level (AL).

As an embodiment, any one of the alternative resource groups comprised by the first alternative resource set comprises time-frequency resources.

As an embodiment, any one of the candidate Resource groups in the first candidate Resource set includes a positive integer number of Resource Elements (REs).

As an embodiment, any one of the Candidate resource groups in the first Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate).

As an embodiment, any one of the Candidate resource groups in the first Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL).

As an embodiment, any one of the Candidate resource groups in the first Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) Format (Format).

As an embodiment, any one Candidate resource group in the first Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) Payload Size (Payload Size).

As an embodiment, any one of the Candidate Resource sets in the first Candidate Resource Set is a time-frequency Resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) load Size (Payload Size) in a Search Space Set (Search Space Set) and an associated Control Resource Set (CORESET, Control Resource Set).

As an embodiment, any one of the candidate resource groups in the first candidate resource set includes a positive integer number of Control Channel Elements (CCEs).

As an embodiment, any one of the candidate resource groups in the first candidate resource set includes a positive integer of Control Channel Elements (CCEs) with consecutive indexes.

As an embodiment, any one of the candidate Resource groups in the first candidate Resource set includes Resource Element Groups (REGs) that are positive integer multiples of 6.

As an embodiment, any one of the first set of candidate resources includes Resource Element Groups (REGs) that are positive integer multiples of 6 of interleaving (Interleaved).

As an embodiment, any one of the first set of candidate resources includes a Resource Element Group (REG) that is a positive integer multiple of 6 of Non-Interleaved (Non-Interleaved).

As an embodiment, any one of the candidate resource groups included in the first candidate resource set includes resources that are contiguous in frequency domain.

As an embodiment, any one of the candidate resource groups included in the first candidate resource set includes a frequency domain discrete resource.

As an embodiment, any one of the alternative resource sets included in the first alternative resource set includes time-domain consecutive resources.

As an embodiment, any one of the alternative resource sets included in the first alternative resource set includes time-domain discrete resources.

As an embodiment, all the alternative resource groups included in the first alternative resource set belong to the same control resource set (CORESET).

As an embodiment, all the candidate resource sets included in the first candidate resource Set belong to the same Search Space Set (Search Space Set).

As an embodiment, each resource group included in the first resource set is an alternative (Candidate) to the time-frequency resource occupied by the first signaling.

As an embodiment, each alternative resource group included in the first alternative resource set includes time-frequency resources that may be occupied by the first signaling.

As an embodiment, the monitoring of the first signaling is performed on each of the alternative resource groups comprised by the first set of alternative resources.

As an embodiment, the monitoring of the first signaling is implemented by Blind Decoding (Blind Decoding), and at least one Blind Decoding is performed for each candidate resource group included in the first candidate resource set.

As an embodiment, all the candidate resource sets included in the first candidate resource Set belong to the same Search Space Set (Search Space Set) and associated control resource Set (CORESET).

As an embodiment, the above sentence "the frequency domain resource occupied by the first alternative resource set belongs to the first carrier" includes the following meanings: all frequency domain resources occupied by the first alternative resource set in a frequency domain belong to the first carrier.

As an embodiment, the above sentence "the frequency domain resource occupied by the first alternative resource set belongs to the first carrier" includes the following meanings: and the frequency domain resource occupied by any one of the candidate resource groups in the first candidate resource set in the frequency domain belongs to the first carrier.

As an embodiment, the above sentence "the frequency domain resource occupied by the first alternative resource set belongs to the first carrier" includes the following meanings: the Carrier is a Carrier (Carrier) in which the first set of alternative resources is located in the frequency domain.

As an embodiment, the Monitoring (Monitoring) of the first signaling is achieved by Decoding (Decoding) of the first signaling.

As an embodiment, the Monitoring (Monitoring) of the first signaling is achieved by Blind Decoding (Blind Decoding) of the first signaling.

As an embodiment, the Monitoring (Monitoring) of the first signaling is performed by decoding (decoding) and CRC checking of the first signaling.

As an embodiment, the Monitoring (Monitoring) of the first signaling is performed by decoding (decoding) the first signaling and a CRC check scrambled by an identity of the first node device.

As an embodiment, the Monitoring (Monitoring) of the first signaling is achieved by Decoding (Decoding) the first signaling based on a format of the first signaling.

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

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

As an embodiment, the first signaling is transmitted through a Uu interface.

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

As an embodiment, the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling includes all or part of a Field (Field) in DCI (Downlink Control Information).

As an embodiment, the first signaling includes all or part of fields (fields) in a DCI of a given DCI (Downlink Control Information) Format (Format).

As an embodiment, "the first signaling is detected" means: the first signaling is successfully decoded (decode).

As an embodiment, "the first signaling is detected" means: the first signaling is successfully received.

As an embodiment, "the first signaling is detected" means: the first signaling passes a Cyclic Redundancy Check (CRC) Check after channel decoding.

As an embodiment, "the first signaling is detected" means: the CRC (Cyclic Redundancy Check) of the first signaling after channel decoding passes the scrambled CRC using the characteristic identification of the target receiver of the first signaling.

As an embodiment, "the first signaling is detected" means: a CRC (Cyclic Redundancy Check) of the first signaling after channel decoding passes a CRC (Cyclic Redundancy Check) scrambled using an RNTI of the first node device in this application.

As an embodiment, "the first signaling is detected" means: the CRC (Cyclic Redundancy Check) of the first signaling after channel decoding passes the CRC scrambled using the ID of the first node device in this application.

As an example, the above sentence "the operation is transmission or the operation is reception" includes the following meanings: the operation is one of transmission and reception.

As an example, the above sentence "the operation is transmission or the operation is reception" includes the following meanings: the operation is a send.

As an example, the above sentence "the operation is transmission, or the operation is reception" includes the following meaning: the operation is receiving.

As an example, the above sentence "the operation is transmission or the operation is reception" includes the following meanings: when the operation is transmission, the first signal is an uplink signal; when the operation is reception, the first signal is a downlink signal.

As an example, the above sentence "the operation is transmission or the operation is reception" includes the following meanings: when the operation is transmission, the first signal is transmitted by an uplink signal; when the operation is reception, the first signal is transmitted through a downlink channel.

As an embodiment, the above sentence "the frequency domain resource occupied by the first signal belongs to the first carrier" includes the following meanings: all frequency domain resources occupied by the first signal belong to the first carrier.

As an embodiment, the above sentence "the frequency domain resource occupied by the first signal belongs to the first carrier" includes the following meanings: the first carrier includes frequency domain resources occupied by the first signal.

As one embodiment, the first signal is a baseband signal.

As one embodiment, the first signal is a radio frequency signal.

As one embodiment, the first signal is transmitted over an air interface.

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

As an embodiment, all or part of the bits in one Transport Block (TB) are used for generating the first signal.

As an embodiment, all or part of the bits of a block of bits is used for generating the first signal, the block of bits comprising a positive integer number of bits.

As an embodiment, the waveform adopted by the first signal is OFDM (Orthogonal Frequency Division Multiplexing).

As an embodiment, the waveform adopted by the first signal is DFT-s-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing).

As an embodiment, the first signal is a reference signal.

As an embodiment, the first signal is a data signal.

As an embodiment, the operation is sending, and the first signal carries Msg3 (random access message 3).

As an embodiment, the operation is sending, and the first signal carries MsgB (random access information B).

As an embodiment, the operation is sending, and the first signal is uplink transmission of the first node device after completion of a random access procedure.

As an embodiment, the operation is a transmission, and the first signal is transmitted through an UL-SCH (Uplink Shared Channel).

As an embodiment, the operation is transmission, and the first signal is transmitted through a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the operation is a transmission, and the first signal is transmitted through a Physical Uplink Control Channel (PUCCH).

As an embodiment, the operation is sending, and the first Signal is transmitted through SRS (Sounding Reference Signal).

As an embodiment, the operation is sending, and the first Signal is transmitted through UL DMRS (Uplink Demodulation Reference Signal).

As an embodiment, the operation is sending, and the first signal carries Uplink Control Information (UCI).

As an embodiment, the operation is receiving, and the first signal is transmitted through a DL-SCH (Downlink Shared Channel).

As an embodiment, the operation is receiving, and the first signal is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the operation is receiving, and the first Signal is transmitted through a CSI-RS (Channel state Information Reference Signal).

As an embodiment, the operation is receiving, and the first Signal is transmitted through a downlink DMRS (Channel state Information Reference Signal).

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

As an embodiment, the first signaling is further used to determine a Redundancy Version (RV) corresponding to the first signal.

As an embodiment, the first signaling is also used to determine a HARQ Process (Process) to which the first signal belongs.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resource occupied by the first signal" includes the following meanings: the first signaling is used by the first node device in this application to determine the time-frequency resource occupied by the first signal.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resource occupied by the first signal" includes the following meanings: the first signaling is used to explicitly indicate time-frequency resources occupied by the first signal.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resource occupied by the first signal" includes the following meanings: the first signaling is used to implicitly indicate the time-frequency resources occupied by the first signal.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resource occupied by the first signal" includes the following meanings: the first signaling is used to indirectly indicate time-frequency resources occupied by the first signal.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resources occupied by the first signal" includes the following meanings: the first signaling is used to schedule the first signal.

As an embodiment, the above sentence "the first signaling is used to determine the time-frequency resource occupied by the first signal" includes the following meanings: the first signaling is a Physical Downlink Control Channel (PDCCH) for scheduling the first signal.

As an embodiment, the sentence "the first signaling occupies one candidate resource group in the first candidate resource set" indicates that the first signaling occupies one candidate resource group in the first candidate resource set in a time-frequency domain.

As an embodiment, the above sentence "the first signaling occupies one candidate resource group in the first candidate resource set" the first signaling occupies all time-frequency resources included in the one candidate resource group in the first candidate resource set in a time-frequency domain.

As an embodiment, the above sentence "the first signaling occupies one candidate resource group in the first candidate resource set" the first signaling occupies at least a time-frequency resource included in one candidate resource group in the first candidate resource set in a time-frequency domain.

As an embodiment, the target resource pool includes time frequency resources included in one Slot (Slot) of one Search Space Set (Search Space Set).

As an embodiment, the target resource pool includes time-frequency resources included in one Slot (Slot) of one Search Space Set (Search Space Set) in the first carrier.

As an embodiment, the target resource pool includes time-frequency resources included in a Slot (Slot) of a Search Space Set (Search Space Set) in a Serving Cell (Serving Cell) corresponding to the first carrier.

As an embodiment, the target resource pool includes CCEs included in one Slot (Slot) of one Search Space Set (Search Space Set).

As an embodiment, the target resource pool includes CCEs included in one Slot (Slot) of one Search Space Set (Search Space Set) in the first carrier.

As an embodiment, the target resource pool includes CCEs included in one Slot (Slot) of a Search Space Set (Search Space Set) in a Serving Cell (Serving Cell) corresponding to the first carrier.

As an embodiment, the target resource pool comprises time-frequency resources included in a Slot (Slot) of a Search Space Set (Search Space Set) associated to a control resource Set (CORESET).

As an embodiment, the target resource pool includes time-frequency resources included in an Active Downlink Bandwidth Part (DL BWP) and a Slot (Slot) of a Serving Cell (Serving Cell) of a Search Space Set (Search Space Set).

As an embodiment, the target resource pool comprises CCEs included in a Slot (Slot) of a Search Space Set (Search Space Set) associated to a control resource Set (CORESET).

As an embodiment, the target resource pool includes CCEs included in an Active Downlink Bandwidth Part (DL BWP, Downlink Bandwidth Part) and a Slot (Slot) of a Serving Cell (Serving Cell) of a Search Space Set (Search Space Set).

As an embodiment, the first candidate resource set includes resource groups larger than the candidate resource groups, and time domain resources occupied by any two candidate resource groups in the first candidate resource set belong to the same Slot (Slot).

As an embodiment, the first alternative resource set includes resource groups larger than the alternative resource groups, and time domain resources occupied by any two alternative resource groups in the first alternative resource set belong to the same Subframe (Subframe).

As an embodiment, any one of the Candidate resource groups in the first Candidate resource set corresponds to a time-frequency resource occupied by a PDCCH Candidate (Candidate), and the target resource pool is a time-frequency resource in a time Slot (Slot) of a search space set to which a PDCCH Candidate corresponding to any one of the Candidate resource groups in the first Candidate resource set belongs.

As an example, the target resource pool is a Set of Search spaces (Search Space Set) associated to a Set of control resources (CORESET).

As one embodiment, the target resource pool includes a positive integer number of CCEs greater than 1.

For one embodiment, the target resource pool includes REs outside the alternative resource groups included in the first alternative resource set.

As an embodiment, the target resource pool includes CCEs outside the alternative resource groups included in the first alternative resource set.

For one embodiment, the target resource pool includes time-frequency resources outside the alternative resource groups included in the first alternative resource set.

As an embodiment, the target resource pool only includes time-frequency resources included in the alternative resource groups included in the first alternative resource set.

As an embodiment, any RE included in the target resource pool belongs to one alternative resource group included in the first alternative resource set.

As an embodiment, an RE not belonging to an alternative resource group included in the first alternative resource set is included in the target resource pool.

As one embodiment, the target indication is equal to 0.

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

For one embodiment, the target indication is equal to the first indication.

For one embodiment, the target indication is not equal to the first indication.

For one embodiment, the target indication is equal to 0 when the target indication is not equal to the first indication.

For one embodiment, the target indication is equal to a fixed value when the target indication is not equal to the first indication.

For one embodiment, the target indication is equal to a predefined value when the target indication is not equal to the first indication.

As an embodiment, the target indication is equal to a value of one Carrier Indicator Field (CIF).

As an embodiment, the target indication is equal to a value of a Carrier Indicator Field (CIF) in one PDCCH (Physical Downlink Control Channel).

As an embodiment, the target indication is equal to a value of a Carrier Indicator Field (CIF) in the first signaling.

As an embodiment, when a Carrier Indicator Field (CIF) exists in the first signaling, the target indication is equal to a value of the CIF in the first signaling; otherwise the target indication is equal to 0.

As an embodiment, the target indication is used to determine a value of a Carrier Indicator Field (CIF) in a PDCCH (Physical Downlink Control Channel).

As an embodiment, the target indication is a Carrier indication (Carrier Indicator).

As an embodiment, the target indication is equal to a Serving Cell Index (Serving Cell Index).

As an embodiment, the target indication is equal to a positive integer between 0 and 7.

As one embodiment, the target indication may be greater than 7.

As an embodiment, the target indication is equal to a positive integer between 0 and 31.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used by the first node device in the present application to determine the first set of alternative resources from the target resource pool.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used to determine the first set of alternative resources from the target resource pool according to an operation rule.

As an embodiment, the above sentence "the target indication is used for determining the first set of alternative resources from the target resource pool" includes the following meaning: the target indication is used to determine the first set of alternative resources from the target resource pool according to a mapping relationship.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used to determine, from the target resource pool, a location in the time-frequency domain of each candidate resource group comprised by the first set of candidate resources.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used to determine, from the target resource pool, a location of each candidate resource group comprised by the first candidate resource set in a time-frequency domain in the target resource pool.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used to determine, from the target resource pool, a distribution of each of the candidate resource groups included in the first candidate resource set in the target resource pool.

As an embodiment, the above sentence "the target indication is used for determining the first set of alternative resources from the target resource pool" includes the following meaning: the target indication is used to determine, from the target resource pool, an index of CCEs included in each candidate resource group included in the first candidate resource set.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the target indication is used to determine, from the target resource pool, an index of CCEs included in each candidate resource group included in the first candidate resource set in the target resource pool.

As an embodiment, the above sentence "the target indication is used to determine the first set of alternative resources from the target resource pool" includes the following meanings: the first set of alternative resourcesOne alternative resource group included

The index of the CCE of the aggregation level L included is obtained by the following equation:

wherein s represents the target resource pool, which is associated to a control resource set (CORESET) p,

an index representing a slot to which a time domain resource included in the first candidate resource set belongs, n _CI On behalf of the indication of the target,

represents a non-negative integer relating to the identity of the first node device in the present application, i-0, …, L-1, N _CCE,p Representing the number of CCEs in a control resource set (CORESET) p, from 0 to N _CCE,p -an index of-1 and a reference number,

represents the number of PDCCH candidates (Candidate) of aggregation level L configured in the target resource pool s for the first carrier,

representing all configurations n for an aggregation level L in said target resource pool s _CI Is

Is measured.

As an embodiment, "whether the first carrier and the target carrier are the same" means: whether the Serving Cell Index (Serving Cell Index) corresponding to the first carrier is the same as the Serving Cell Index (Serving Cell Index) corresponding to the target carrier.

As an embodiment, "whether the first carrier and the target carrier are the same" means: whether the first Carrier and the target Carrier are the same Carrier (Carrier).

As an embodiment, "whether the first carrier and the target carrier are the same" means: whether the index of the first carrier and the index of the target carrier are the same.

As an embodiment, "whether the first carrier and the target carrier are the same" means: whether the frequency spectrum range occupied by the first carrier wave is the same as the frequency spectrum range occupied by the target carrier wave.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used for determining whether the target indication is equal to the first indication" refers to claim 2 in the present application.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: whether the first carrier and the target carrier are the same is used by the first node device in this application to determine whether the target indication is equal to the first indication.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication according to predefined conditional rules.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: whether the first carrier and the target carrier are the same is one of the conditions used to determine whether the target indication is equal to the first indication.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: the condition for determining whether the target indication is equal to the first indication comprises whether the first carrier and the target carrier are the same.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: the condition for determining whether the target indication is equal to the first indication further includes a determination condition other than whether the first carrier and the target carrier are the same.

As an embodiment, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meaning: whether the first carrier and the target carrier are the same is used in conjunction with a version supported by the first node device in this application (e.g., whether R17 version is supported) to determine whether the target indication is equal to the first indication.

As an example, the above sentence "whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication" includes the following meanings: whether the first carrier and the target carrier are the same is used in conjunction with the first node device's capability in this application (such as whether Scell cross-carrier scheduling, Pcell, or not) to determine whether the target indication is equal to the first indication.

Example 2

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

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

As an embodiment, the UE201 supports multi-carrier transmission.

As an embodiment, the UE201 supports secondary carrier cross-carrier scheduling of transmission of a primary carrier.

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

As an embodiment, the gbb (enb)201 supports multicarrier transmission.

As an embodiment, the gbb (enb)201 supports secondary carrier cross-carrier scheduling of transmission of a primary carrier.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 showing the radio protocol architecture of the control plane 300 for a first node device (UE or gNB) and a second node device (gNB or UE) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first node device and the second node device through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support for a first node device between second node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second node device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first node device and the second node device is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes a Service Data Adaptation Protocol (SDAP) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

As an embodiment, the first information in this application is generated in the RRC 306.

As an embodiment, the first information in this application is generated in the MAC302 or the MAC 352.

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

As an embodiment, the second information in this application is generated in the RRC 306.

As an embodiment, the second information in this application is generated in the MAC302 or the MAC 352.

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

As an embodiment, the first signaling in this application is generated in the RRC 306.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signal in this application is generated in the RRC 306.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the third information in this application is generated in the RRC 306.

As an embodiment, the third information in the present application is generated in the MAC302 or the MAC 352.

As an embodiment, the third information in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the second signaling in this application is generated in the RRC 306.

As an embodiment, the second signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second signaling in this application is generated in the PHY301 or the PHY 351.

As an embodiment, the fourth information in this application is generated in the RRC 306.

As an embodiment, the fourth information in the present application is generated in the MAC302 or the MAC 352.

As an embodiment, the fourth information in the present application is generated in the PHY301 or the PHY 351.

Example 4

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

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

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

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

In an Uplink (UL) transmission, a data source/buffer 480 is used to provide higher layer data to controller/processor 490. The data source/buffer 480 represents all protocol layers above the L2 layer and the L2 layer, and when the first signal is transmitted upstream in this application, the higher layer information or data carried in the first signal is provided by the data source/buffer 480 to the controller/processor 490. The controller/processor 490 implements the L2 layer protocol for the user plane and the control plane by providing header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the second node 410. The controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second node 410. The transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., the physical layer), and when the first signal in this application is an upstream transmission, a physical layer signal of the first signal is generated at the transmit processor 455. The signal transmission processing functions include sequence generation (for signals generated from the sequence), coding and interleaving to facilitate Forward Error Correction (FEC) at the UE450, and modulation of the baseband signals (for signals generated from the blocks of bits) based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), splitting the signals or modulation symbols generated from the sequence into parallel streams and mapping each stream to a respective multi-carrier subcarrier and/or multi-carrier symbol, which are then mapped by a transmit processor 455 via a transmitter 456 to an antenna 460 for transmission as radio frequency signals. Receivers 416 receive radio frequency signals through their respective antennas 420, each receiver 416 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to receive processor 412. Receive processor 412 performs various signal reception processing functions for the L1 layer (i.e., the physical layer), including receiving a physical layer signal that processes the first signal in this application (when the first signal in this application is an upstream transmission), including obtaining a stream of multicarrier symbols, then sequence decorrelating or demodulating based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)) the multicarrier symbols in the stream of multicarrier symbols, and then decoding and deinterleaving to recover the data and/or control signals originally transmitted by first node device 450 on the physical channel. The data and/or control signals are then provided to the controller/processor 440. The functions of layer L2 are performed at controller/processor 440, including reading the higher layer information carried in the first signal in this application (when the first signal in this application is upstream). The controller/processor can be associated with a buffer 430 that stores program codes and data. The buffer 430 may be a computer-readable medium.

For one embodiment, the first node apparatus 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first node apparatus 450 at least: receiving first information and second information, wherein the first information is used for determining a target carrier, the second information is used for determining a first indication, and the first indication is a positive integer; monitoring a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier; operating a first signal when the first signaling is detected; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; wherein the operation is a transmission or the operation is a reception; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

As an embodiment, the first node apparatus 450 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first information and second information, wherein the first information is used for determining a target carrier, the second information is used for determining a first indication, and the first indication is a positive integer; monitoring a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier; operating a first signal when the first signaling is detected; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; wherein the operation is a transmission or the operation is a reception; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

For one embodiment, the second node device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second node device 410 apparatus at least: transmitting first information and second information, wherein the first information is used for indicating a target carrier, the second information is used for indicating a first indication, and the first indication is a positive integer; sending a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier; executing the first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for indicating the time-frequency resource occupied by the first signal; wherein the performing is receiving or the performing is transmitting; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

For one embodiment, the second node device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting first information and second information, wherein the first information is used for indicating a target carrier, the second information is used for indicating a first indication, and the first indication is a positive integer; sending a first signaling in a first alternative resource set, wherein frequency domain resources occupied by the first alternative resource set belong to a first carrier; executing the first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for indicating the time-frequency resource occupied by the first signal; wherein the performing is receiving or the performing is transmitting; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

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

For one embodiment, the first node apparatus 450 is a user equipment supporting overloaded transmission.

For an embodiment, the first node device 450 is a user equipment that supports cross-carrier scheduling of a primary carrier by a secondary carrier.

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

As an embodiment, the second node device 410 is a base station device supporting multi-carrier transmission.

For an embodiment, the second node device 410 is a base station device supporting cross-carrier scheduling of a primary carrier by a secondary carrier.

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

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the second information described herein.

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

For one embodiment, a receiver 456 (including an antenna 460), a transmitter 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 are used to manipulate the first signal described herein.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the third information herein.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the fourth information described herein.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to monitor the second signaling.

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

For one embodiment, transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the second information described herein.

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

For one embodiment, the transmitter 416 (including antenna 420), the receiver 416 (including antenna 420), the receive processor 412, and the controller/processor 440 are configured to execute the first signal described herein.

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

For one embodiment, transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the fourth information described herein.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the second signaling in this application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node device N1 is the maintaining base station of the serving cell of the first node device U2. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

ForSecond node device N1First information is transmitted in step S11, second information is transmitted in step S12, third information is transmitted in step S13, fourth information is transmitted in step S14, first signaling is transmitted in the first set of alternative resources in step S15, second signaling is transmitted in the second set of alternative resources in step S16, and the first signal is received in step S17.

For theFirst node device U2First information is received in step S21, second information is received in step S22, third information is received in step S23, fourth information is received in step S24, first signaling is monitored in the first set of alternative resources in step S25, second signaling is monitored in the second set of alternative resources in step S26, and the first signal is transmitted in step S27.

In embodiment 5, the first information is used to determine a target carrier, and the second information is used to determine a first indication, which is a positive integer; the frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time frequency resource occupied by the first signal; the first alternative resource set comprises a positive integer number of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication; the third information is used to determine that the first carrier is self-scheduled; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for determining the time-frequency resources occupied by the signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0; the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

As an embodiment, the third information is transmitted through a wireless interface.

As an embodiment, the third information is transmitted through higher layer signaling.

As an embodiment, the third information is transmitted through physical layer signaling.

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

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

As an embodiment, the third Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the third Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

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

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

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

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

As an embodiment, the third information is Cell Specific.

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

As an example, the third information is Carrier Specific.

As one embodiment, the third information is configured Per Carrier (Per Carrier).

As an embodiment, the third information is Specific to a Serving Cell (Serving Cell Specific).

As an embodiment, the third information is configured Per Serving Cell (Per Serving Cell).

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

As an embodiment, the third Information belongs to an IE (Information Element) in RRC signaling "crosscarrierschedingconfig".

As an embodiment, the third Information belongs to an IE (Information Element) in RRC signaling "ServingCellConfig".

As an embodiment, the third Information belongs to an IE (Information Element) in RRC signaling configuring a Secondary Cell (Scell) "cross carrier scheduling configuration".

As an embodiment, the third Information belongs to an IE (Information Element) in RRC signaling configuring a Secondary Cell (Scell).

As an embodiment, the third Information belongs to a CHOICE (choicee) "Own" in an IE (Information Element ) in RRC signaling.

As an embodiment, the third Information belongs to a CHOICE (choicee) "Own" in IE (Information Element) in RRC signaling configuring a Secondary Cell (Scell).

As an embodiment, the third Information belongs to a selection (choicee) "Other" in an IE (Information Element ) in RRC signaling.

As an embodiment, the third Information belongs to a selection (choicet) "Other" in IE (Information Element ) in RRC signaling configuring a Secondary Cell (Scell).

As an embodiment, when the first carrier and the target carrier are not the same, the third information is used to indicate whether the first signaling carries the first domain in this application; when the first domain is carried in the first signaling, the value of the first domain is equal to the target indication.

As an embodiment, the second information and the third information are carried through two different RRC signaling.

As an embodiment, the second information and the third information are carried through the same RRC signaling.

As an embodiment, the second information and the third information are carried by two different IEs in the same RRC signaling.

As an embodiment, the second information and the third information are carried through two different fields (fields) in the same IE in the same RRC signaling.

As an embodiment, the second information and the third information are carried by two different fields (fields) in the same selection (CHOICE) in the same IE in the same RRC signaling.

As an embodiment, the first information and the third information are carried through two different signaling.

As an embodiment, the first information and the third information are carried through two different RRC signaling.

As one embodiment, the first information and the third information are for two different carriers (carriers).

As one embodiment, the first information and the third information are for two different Serving cells (Serving cells).

As an embodiment, the first Information and the third Information are carried by two independent IEs (Information elements).

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used by the first node device in this application to determine that the first carrier is Self-scheduled (Self-Scheduling).

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to explicitly indicate that the first carrier is Self-scheduled (Self-Scheduling).

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to implicitly indicate that the first carrier is Self-scheduled (Self-Scheduling).

As an embodiment, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meaning: the third information is used to indirectly indicate that the first carrier is Self-scheduled (Self-Scheduling).

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to explicitly indicate that a Serving Cell (Serving Cell) corresponding to the first carrier is Self-scheduled.

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to indicate a second index belonging to a parameter in a first selection, the second index being equal to an index of the first Carrier, the first selection indicating that the first Carrier is Cross-Carrier scheduled (Cross-Carrier Scheduling).

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to indicate a second index belonging to a parameter in a first selection, the second index being equal to an index of a serving cell corresponding to the first carrier, the first selection indicating that the first carrier is scheduled by a PDCCH in a serving cell other than the serving cell corresponding to the first carrier.

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to indicate a second index, the serving cell corresponding to the first carrier is scheduled by the serving cell represented by the second index, and the second index is equal to the index of the serving cell corresponding to the first carrier.

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to indicate a second index, the serving cell corresponding to the first Carrier is Cross-Carrier scheduled (Cross-Carrier Scheduling) by the serving cell represented by the second index, and the second index is equal to the index of the serving cell corresponding to the first Carrier.

As an embodiment, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meaning: the third information is used to indicate a second index belonging to a parameter in a first selection, the first indication also belonging to a parameter in the first selection, the second index being equal to an index of a serving cell corresponding to the first carrier, the first selection indicating that the first carrier is scheduled by a PDCCH in a serving cell other than the serving cell corresponding to the first carrier.

As an example, the above sentence "the third information is used to determine that the first carrier is self-scheduled" includes the following meanings: the third information is used to indicate a second index belonging to a parameter in a first selection, the first indication also belonging to a parameter in the first selection, the first selection being a selection in an IE in one RRC signaling (choicee); the second index is equal to an index of a serving cell corresponding to the first carrier, and the first selection indicates that the first carrier is scheduled by a PDCCH in a serving cell other than the serving cell corresponding to the first carrier.

Example 6

Embodiment 6 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in fig. 6. In fig. 6, the second node device N3 is the maintaining base station of the serving cell of the first node device U4. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theSecond node device N3First information is transmitted in step S31, second information is transmitted in step S32, third information is transmitted in step S33, fourth information is transmitted in step S34, first signaling is transmitted in the first set of alternative resources in step S35, second signaling is transmitted in the second set of alternative resources in step S36, and the first signaling is transmitted in step S37.

For theFirst node device U4First information is received in step S41, second information is received in step S42, third information is received in step S43, fourth information is received in step S44, first signaling is monitored in the first set of alternative resources in step S45, second signaling is monitored in the second set of alternative resources in step S46, and first signal is received in step S47.

In embodiment 6, the first information is used to determine a target carrier, the second information is used to determine a first indication, the first indication is a positive integer; the frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication; the third information is used to determine that the first carrier is self-scheduled; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for determining time-frequency resources occupied by signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0; the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

As an embodiment, the fourth information is transmitted via a wireless interface.

As an embodiment, the fourth information is transmitted through higher layer signaling.

As an embodiment, the fourth information is transmitted through physical layer signaling.

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

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

As an embodiment, the fourth Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.

As an embodiment, the fourth Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.

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

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

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

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

As an embodiment, the fourth information is Cell Specific (Cell Specific).

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

As an example, the fourth information is Carrier Specific.

As an embodiment, the fourth information is Specific to BWP (Carrier Specific).

As one embodiment, the fourth information is configured Per Carrier (Per Carrier).

As an embodiment, the fourth information is Specific to a Serving Cell (Serving Cell Specific).

As an embodiment, the fourth information is configured Per Serving Cell (Per Serving Cell).

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

As an embodiment, the fourth Information belongs to an IE (Information Element) in RRC signaling "SearchSpace".

As an embodiment, the fourth Information belongs to an IE (Information Element) in RRC signaling "PDCCH-Config".

As an embodiment, the fourth information includes configuration information of a Search Space Set (Search Space Set).

As an embodiment, the above sentence "the fourth information is used to determine the number of candidate resource groups included in the target resource pool and the first candidate resource set" includes the following meanings: the fourth information is used by the first node device in this application to determine the number of the candidate resource groups included in the target resource pool and the first candidate resource set.

As an embodiment, the above sentence "the fourth information is used for determining the number of the candidate resource groups included in the target resource pool and the first candidate resource set" includes the following meanings: the fourth information is used to explicitly indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

As an embodiment, the above sentence "the fourth information is used to determine the number of candidate resource groups included in the target resource pool and the first candidate resource set" includes the following meanings: the fourth information is used to implicitly indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

As an embodiment, the above sentence "the fourth information is used to determine the number of candidate resource groups included in the target resource pool and the first candidate resource set" includes the following meanings: the fourth information is used to indirectly indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

As an embodiment, the above sentence "the fourth information is used to determine the number of candidate resource groups included in the target resource pool and the first candidate resource set" includes the following meanings: the fourth information is used to indicate a search space set to which the first signaling belongs, where the search space set to which the first signaling belongs includes a parameter of the target resource pool and a parameter of the number of candidate resource groups included in the first candidate resource set.

Example 7

Embodiment 7 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in fig. 7. In fig. 7, the second node device N5 is the maintaining base station of the serving cell of the first node device U6. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theSecond node device N5The seventh information is received in step S51, the sixth information is transmitted in step S52, the first information is transmitted in step S53, the second information is transmitted in step S54, the fifth information is transmitted in step S55, the fourth information is transmitted in step S56, the first signaling is transmitted in the first set of alternative resources in step S57, the second signaling is transmitted in the second set of alternative resources in step S58, and the first signal is transmitted in step S59.

ForFirst node device U6Seventh information is transmitted in step S61, sixth information is received in step S62, first information is received in step S63, second information is received in step S64, fifth information is received in step S65, fourth information is received in step S66, first signaling is monitored in the first set of alternative resources in step S67, second signaling is monitored in the second set of alternative resources in step S68, and first signal is received in step S69.

In embodiment 7, the first information is used to determine a target carrier, the second information is used to determine a first indication, the first indication is a positive integer; the frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; the first alternative resource set comprises a positive integer number of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication; when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first domain is carried in the first signaling, and the value of the first domain is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer outside the first indication; when the first carrier and the target carrier are different, the fifth information is used for indicating whether the first signaling carries the first domain; when the first domain is carried in the first signaling, the value of the first domain is equal to the target indication; a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used for determining a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier in a cross-carrier manner; the sixth information is used to indicate that the second Carrier may be scheduled (Cross Carrier Scheduling); the seventh information is used to indicate that the first node device supports Cross-Carrier Scheduling (Cross Carrier Scheduling) of the second Carrier; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for determining the time-frequency resources occupied by the signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0; the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

As an embodiment, the first receiver in the present application receives fifth information; wherein, when the first carrier and the target carrier are different, the fifth information is used for indicating whether the first signaling carries the first domain; when the first domain is carried in the first signaling, the value of the first domain is equal to the target indication.

As an embodiment, the fifth information and the third information in this application correspond to two different choices (Choice) in the same IE in the same RRC signaling.

As an embodiment, the fifth information and the third information in this application do not appear in the same IE in the same RRC signaling at the same time.

As an embodiment, the first receiver in the present application receives a sixth information; wherein the sixth information is used to indicate that the second Carrier can be Cross-Carrier scheduled (Cross Carrier Scheduling).

As an embodiment, the first processor in the present application transmits seventh information; wherein the seventh information is used to indicate that the first node device supports Cross-Carrier Scheduling (Cross Carrier Scheduling) of the second Carrier.

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between a first carrier and a target carrier according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the cross-lined filled rectangles represent the first signaling, and the slashed filled rectangles represent the first fields; in case a, the first carrier and the target carrier are the same; in case B, the first carrier and the target carrier are not the same.

In embodiment 8, when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first domain is carried in the first signaling, and a value of the first domain is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

As an embodiment, the first Field is a Carrier Indicator Field (CIF).

As an embodiment, the first Field is a Carrier Indicator Field (CIF) in the first signaling.

As an embodiment, the first Field is a Field (Field) in DCI (Downlink Control Information).

As an embodiment, the first Field is a Field (Field) in a DCI (Downlink Control Information) Payload (Payload).

As an embodiment, the first Field is a Field (Field) in DCI (Downlink Control Information) of a given DCI Format (Format).

As an embodiment, when the first carrier and the target carrier are different, the first signaling does not carry the first domain.

As an embodiment, when the first carrier and the target carrier are different, the first signaling carries the first domain.

As an embodiment, when the first carrier and the target carrier are different, the first signaling carries the first field, and a value of the first field is equal to the target indication.

As an embodiment, the Value (Value) of the first field is an integer represented by the first field.

As an embodiment, the value of the first field is an integer represented by a bit in the first field.

As an embodiment, the value of the first field is an integer converted from bits in the first field to 10.

As an embodiment, the predefined non-negative integer is equal to 0.

As one embodiment, the predefined non-negative integer is greater than 0.

As an embodiment, the predefined non-negative integer is a value fixed in a protocol.

As an embodiment, the predefined non-negative integer is a value greater than 7 fixed in the protocol.

As an embodiment, the predefined non-negative integer is a value greater than 31 fixed in the protocol.

As one embodiment, the predefined non-negative integer is variable.

As an embodiment, the predefined non-negative integer is fixed.

Example 9

Embodiment 9 illustrates a schematic diagram of second information according to an embodiment of the present application, as shown in fig. 9. In fig. 9, in case a, the bold boxed rectangle represents a signaling to which the first information and the second information belong together, and this signaling also carries an indication that the primary carrier is scheduled across carriers; in case B, the bold frame represents a signaling for the first carrier to which the second information belongs, and this signaling also carries an indication (possibly, third information in this application) that the first carrier is cross-carrier scheduled, and the carrier indicating that the cross-carrier scheduling of the first carrier is the first carrier.

In embodiment 9, the second information in the present application and the first information in the present application are carried through two different domains in the same signaling, or the second information is carried through a signaling for the first carrier in the present application.

As an example, the above sentence "the second information and the first information are carried through two different fields in the same signaling" includes the following meanings: the second Information and the first Information are carried by two different fields (fields) in the same Information Element (IE) in the same signaling.

As an example, the above sentence "the second information and the first information are carried through two different fields in the same signaling" includes the following meanings: the second Information and the first Information are carried by two fields (fields) in two different IEs (Information elements) in the same signaling.

As an embodiment, when "the second information and the first information are carried over two different fields in the same signaling", both the second information and the first information belong to the IE "CrossCarrierSchedulingConfig" in the same RRC signaling, the second information is carried over the Field (Field) "cif-InSchedulingCell" in the IE "CrossCarrierSchedulingConfig", and the first information is carried over the Field (Field) "schedulingCellId" in the IE "CrossCarrierSchedulingConfig".

As an embodiment, when "the second information and the first information are carried over two different fields in the same signaling", both the second information and the first information belong to IE "CrossCarrierSchedulingConfig" in the same RRC signaling, the second information is carried over Field (Field) "cif-OfSchedulingCell" in IE "CrossCarrierSchedulingConfig", and the first information is carried over Field (Field) "schedulingCellId" in IE "CrossCarrierSchedulingConfig".

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: and the IE to which the second information belongs and the index of the first carrier belong to the same IE.

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: the second information and the index of the first carrier belong to the same IE.

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: and the IE to which the second information belongs and the index of the serving cell corresponding to the first carrier belong to the same IE.

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: the second information belongs to one IE in configuration signaling for the first carrier.

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: the second information belongs to a field "scellconfigugdedicated" in an IE "scellconfigug", and the index of the serving cell corresponding to the first carrier also belongs to the IE "SCellConfig".

As an embodiment, the above sentence "the second information is carried by signaling for the first carrier" includes the following meanings: the second information is information specific to the first carrier.

Example 10

Embodiment 10 illustrates a schematic diagram of a relationship between a target carrier and a second carrier according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the cross-hatched rectangle represents the first information, and the cross-hatched rectangle represents one scheduling signaling on the target carrier.

In embodiment 10, a frequency domain resource occupied by a signal carrying the first information in the present application belongs to a second carrier, where the first information is used to determine a first index, where the first index is an index of a target carrier in the present application, and the target carrier performs cross-carrier scheduling on the second carrier.

As an embodiment, the second Carrier is a Primary Carrier (PCC).

As an embodiment, the second carrier is a carrier occupied by a Primary Cell (Pcell).

As an embodiment, the second carrier corresponds to a Serving Cell (Serving Cell).

As an embodiment, the second Carrier is one Component Carrier (Component Carrier) in Carrier Aggregation (CA).

As one embodiment, the second carrier is a primary carrier that supports cross-carrier scheduling.

As an embodiment, the serving cell corresponding to the second carrier is a primary cell (Pcell) supporting cross-carrier scheduling.

As an embodiment, the second Carrier is one Component Carrier (Component Carrier) in an MCG (Master Cell Group) in Carrier Aggregation (CA).

As an embodiment, the second Carrier is one Component Carrier (Component Carrier) in SCG (Secondary Cell Group) in Carrier Aggregation (CA).

As an embodiment, the second carrier corresponds to a primary Cell (Pcell) in an MCG (Master Cell Group).

As an embodiment, the second carrier corresponds to a primary Cell (PSCell) in an SCG (Secondary Cell Group).

As an embodiment, the second carrier is identified by a Serving Cell Index (Serving Cell Index).

As one embodiment, the first information is transmitted on the second carrier.

As an example, the above sentence "the first information is used to determine the first index" includes the following meanings: the first information is used by the first node device in the present application to determine the first index.

As an example, the above sentence "the first information is used to determine the first index" includes the following meanings: the first information is used to explicitly indicate the first index.

As an example, the above sentence "the first information is used to determine the first index" includes the following meanings: the first information is used to implicitly indicate the first index.

As an embodiment, the above sentence "the first information is used to determine the first index" includes the following meaning: the first information is used to indirectly indicate the first index.

As one embodiment, the first information is used to determine that the target carrier and the second carrier are not the same.

As one embodiment, the first information is used to determine that the second carrier is cross-carrier scheduled.

As one embodiment, the first information is used to determine that the second carrier is not Self-scheduled (Self-Scheduling).

As an example, the above sentence "the first index is an index of the target carrier" includes the following meanings: the first index is an index of a Serving Cell (Serving Cell) corresponding to the target carrier.

As an example, the above sentence "the first index is an index of the target carrier" includes the following meanings: the first index is used to identify the target carrier.

As an example, the above sentence "the first index is an index of the target carrier" includes the following meanings: the first index is used to identify a Serving Cell (Serving Cell) corresponding to the target carrier.

As an embodiment, the target carrier and the second carrier are different.

As an embodiment, the index of the target carrier and the index of the second carrier are different.

As an embodiment, an index of a serving cell corresponding to the target carrier is different from an index of a serving cell corresponding to the second carrier.

As an example, the above sentence "the target carrier cross-carrier schedules the second carrier" includes the following meanings: the target carrier and the second carrier are different, and the target carrier schedules the second carrier.

As an embodiment, the above sentence "the target carrier cross-carrier schedules the second carrier" includes the following meanings: the target carrier and the second carrier are different, and the second carrier is scheduled by the target carrier.

As an example, the above sentence "the target carrier cross-carrier schedules the second carrier" includes the following meanings: the target carrier is different from the second carrier, and the PDCCH transmitted on the target carrier schedules a signal transmitted on the second carrier.

Example 11

Embodiment 11 illustrates a schematic diagram of a relationship between a second alternative resource set and a first alternative resource set according to an embodiment of the application, as shown in fig. 11. In fig. 11, the bold line box rectangles represent the target resource pool, each of the rectangles filled with oblique lines represents one of the candidate resource groups included in the second candidate resource set, and each of the rectangles filled with cross lines represents one of the candidate resource groups included in the first candidate resource set.

In embodiment 11, a frequency domain resource occupied by the second alternative resource set in this application belongs to the first carrier in this application, the second signaling in this application is used to determine a time-frequency resource occupied by a signal transmitted on the second carrier in this application, the second alternative resource set includes a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool in the present application, the second indication being equal to 0.

As an embodiment, the second set of alternative resources includes time-frequency resources.

As an embodiment, the second set of alternative resources comprises only one set of alternative resources.

For one embodiment, the second set of alternative resources includes more than one set of alternative resources.

As an embodiment, when the second alternative resource set includes more than one alternative resource group, any two alternative resource groups included in the second alternative resource set are Orthogonal in time-frequency domain (Orthogonal).

As an embodiment, when the second alternative resource set includes more than one alternative resource group, any two alternative resource groups included in the second alternative resource set do not overlap in time-frequency domain (Non-overlapped).

As an embodiment, when the second alternative resource set includes more than one alternative resource group, there are two alternative resource groups in the second alternative resource set that are Non-Orthogonal in time-frequency domain (Non-Orthogonal).

As an embodiment, when the second candidate resource set includes more than one candidate resource group, there may be two candidate resource groups in the second candidate resource set that are completely Overlapped (Full Overlapped) or partially Overlapped (Partial Overlapped) in a time-frequency domain.

As an embodiment, when the second alternative resource set includes more than one alternative resource group, the number of time-frequency resources included in any two alternative resource groups in the second alternative resource set is equal.

As an embodiment, when the second alternative Resource set includes more than one alternative Resource group, the number of Resource units (REs) included in any two alternative Resource groups in the second alternative Resource set is equal.

As an embodiment, when the second candidate resource set includes more than one candidate resource group, any two candidate resource groups in the second candidate resource set correspond to the same Aggregation Level (AL).

As an embodiment, any one of the alternative resource groups included in the second alternative resource set includes time-frequency resources.

As an embodiment, any one of the candidate Resource groups in the second candidate Resource set includes a positive integer number of Resource Elements (REs).

As an embodiment, any one of the Candidate resource sets in the second Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate).

As an embodiment, any one Candidate resource group in the second Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL).

As an embodiment, any one of the Candidate resource groups in the second Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) Format (Format).

As an embodiment, any one of the Candidate resource groups in the second Candidate resource set is a time-frequency resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) Payload Size (Payload Size).

As an embodiment, any one of the Candidate Resource sets in the second Candidate Resource Set is a time-frequency Resource occupied by a Physical Downlink Control Channel (PDCCH) Candidate (Candidate) corresponding to an Aggregation Level (AL) and a Downlink Control Information (DCI) load Size (Payload Size) in a Search Space Set (Search Space Set) and an associated Control Resource Set (CORESET, Control Resource Set).

As an embodiment, any one of the second set of candidate resources includes a positive integer number of Control Channel Elements (CCEs).

As an embodiment, any one of the candidate resource groups in the second candidate resource set includes a positive integer of Control Channel Elements (CCEs) with consecutive indexes.

As an embodiment, any one of the candidate Resource groups in the second candidate Resource set includes Resource Element Groups (REGs) that are positive integer multiples of 6.

As an embodiment, any one of the second candidate Resource sets includes Resource Element Groups (REGs) that are positive integer multiples of 6 of interleaving (Interleaved).

As an embodiment, any one of the second candidate Resource sets includes a Resource Element Group (REG) that is a positive integer multiple of 6 of Non-Interleaved (Non-Interleaved).

As an embodiment, any one of the candidate resource groups included in the second candidate resource set includes resources that are contiguous in frequency domain.

As an embodiment, any one of the candidate resource groups included in the second candidate resource set includes a frequency domain discrete resource.

As an embodiment, any one of the candidate resource groups included in the second candidate resource set includes time-domain contiguous resources.

As an embodiment, any one of the alternative resource sets included in the second alternative resource set includes time-domain discrete resources.

As an embodiment, all the alternative resource groups included in the second alternative resource set belong to the same control resource set (CORESET).

As an embodiment, all the candidate resource sets included in the second candidate resource Set belong to the same Search Space Set (Search Space Set).

As an embodiment, each resource group Candidate included in the second resource Candidate set is a Candidate (Candidate) of the time-frequency resource occupied by the second signaling.

As an embodiment, each alternative resource group included in the second alternative resource set includes time-frequency resources that may be occupied by the second signaling.

As an embodiment, the number of REs included in any one of the candidate resource groups in the first candidate resource set is equal to the number of REs included in any one of the candidate resource groups in the second candidate resource set.

As an embodiment, the number of REs included in one alternative resource group existing in the first alternative resource set is not equal to the number of REs included in one alternative resource group in the second alternative resource set.

As an embodiment, an Aggregation Level (AL) corresponding to any one of the candidate resource groups in the first candidate resource set is equal to an Aggregation Level (AL) corresponding to any one of the candidate resource groups in the second candidate resource set.

As an embodiment, an Aggregation Level (AL) corresponding to one candidate resource group in the first candidate resource set is not equal to an Aggregation Level (AL) corresponding to one candidate resource group in the second candidate resource set.

As an embodiment, the Monitoring (Monitoring) of the second signaling is achieved by Decoding (Decoding) of the second signaling.

As an embodiment, the Monitoring (Monitoring) of the second signaling is achieved by Blind Decoding (blanking) of the second signaling.

As an embodiment, the Monitoring (Monitoring) of the second signaling is performed by decoding (decoding) and CRC checking of the second signaling.

As an embodiment, the Monitoring (Monitoring) of the second signaling is performed by decoding (decoding) the second signaling and a CRC check scrambled by the identity of the first node device.

As an embodiment, the Monitoring (Monitoring) of the second signaling is achieved by Decoding (Decoding) the second signaling based on a format of the second signaling.

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

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

As an embodiment, the second signaling is transmitted through a Uu interface.

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

As an embodiment, the second signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the second signaling includes all or part of a Field (Field) in DCI (Downlink Control Information).

As an embodiment, the second signaling includes all or part of fields (fields) in a DCI of a given DCI (Downlink Control Information) Format (Format).

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is used by the first node device in this application to determine time-frequency resources occupied by signals transmitted on the second carrier.

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is used to explicitly indicate time-frequency resources occupied by signals transmitted on the second carrier.

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is used to implicitly indicate time-frequency resources occupied by signals transmitted on the second carrier.

As an embodiment, the above sentence "the second signaling is used for determining the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is used to indirectly indicate time-frequency resources occupied by signals transmitted on the second carrier.

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is scheduling signaling of a signal transmitted on the second carrier.

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is a PDCCH scheduling a signal transmitted on the second carrier.

As an example, the above sentence "the second signaling is used to determine the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is a PDCCH scheduling a PDSCH transmitted on the second carrier.

As an embodiment, the above sentence "the second signaling is used for determining the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is a PDCCH scheduling a PUSCH transmitted on the second carrier.

As an embodiment, the above sentence "the second signaling is used for determining the time-frequency resources occupied by the signal transmitted on the second carrier" includes the following meanings: the second signaling is Cross-Carrier scheduling (Cross-Carrier Schedule) a PDCCH for signals transmitted on the second Carrier.

As one embodiment, the second signaling is a PDCCH of a cross-carrier scheduling primary cell (Pcell).

As an embodiment, the second signaling is also used to indicate a Modulation and Coding Scheme (MCS) of a signal transmitted on the second carrier.

As an embodiment, the second signaling is further used to indicate a Redundancy Version (RV) of a signal transmitted on the second carrier.

As an embodiment, the second signaling is further used to indicate a HARQ Process (Process) to which a signal transmitted on the second carrier belongs.

As an embodiment, the second indication is equal to a value of one Carrier Indicator Field (CIF).

As an embodiment, the second indication is equal to a value of a Carrier Indicator Field (CIF) in one PDCCH (Physical Downlink Control Channel).

As an embodiment, when a Carrier Indicator Field (CIF) is carried in the second signaling, a value of the Carrier Indicator Field (CIF) in the second signaling is equal to the second indication.

As an embodiment, a Carrier Indicator Field (CIF) is carried in the second signaling.

As an embodiment, a Carrier Indicator Field (CIF) is not carried in the second signaling.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: the second indication is used by the first node device in the present application to determine the second set of alternative resources from the target resource pool.

As an embodiment, the above sentence "the second indication is used to determine the second set of alternative resources" from the target resource pool includes the following meaning: the second indication is used to determine the second set of alternative resources from the target resource pool according to an operation rule.

As an embodiment, the above sentence "the second indication is used to determine the second set of alternative resources" from the target resource pool includes the following meaning: the second indication is used to determine the second set of alternative resources from the target resource pool according to a mapping relationship.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: the second indication is used to determine, from the target resource pool, a location in the time-frequency domain of each of the alternative resource sets comprised by the second set of alternative resources.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: the second indication is used to determine, from the target resource pool, a location of each candidate resource group comprised by the second set of candidate resources in a time-frequency domain in the target resource pool.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: the second indication is used to determine, from the target resource pool, a distribution of each of the alternative resource groups comprised by the second set of alternative resources in the target resource pool.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: the second indication is used to determine, from the target resource pool, an index of CCEs included in each alternative resource group included in the second alternative resource set.

As an embodiment, the above sentence "the second indication is used to determine the second set of alternative resources" from the target resource pool includes the following meaning: the second indication is used to determine, from the target resource pool, an index of CCEs included in each alternative resource group included in the second alternative resource set in the target resource pool.

As an embodiment, the above sentence "the second indication is used for determining the second set of alternative resources from the target resource pool" includes the following meaning: one alternative resource group included in the second alternative resource set

Included aggregation level L ₂ The index of CCE of (a) is obtained by the following formula:

an index representing a time slot to which a time domain resource included in the second alternative resource set belongs, n ² _CI On behalf of the said second indication,

represents a non-negative integer relating to the identity of the first node device in the present application, i-0, …, L ₂ -1，N _CCE,p Representing the number of CCEs in a control resource set (CORESET) p, from 0 to N _CCE,p -an index of-1, and,

represents an aggregation level L configured for the second carrier in the target resource pool s ₂ The number of PDCCH candidates (candidates),

representing aggregation level L for the target resource pool s ₂ All are configured with n _CI Is/are as follows

Is measured.

Example 12

Embodiment 12 is a block diagram illustrating a processing apparatus in a first node device according to an embodiment, as shown in fig. 12. In fig. 12, a first node device processing apparatus 1200 includes a first receiver 1201, a second receiver 1202, and a first processor 1203. The first receiver 1201 includes the transmitter/receiver 456 (including the antenna 460), the receive processor 452, and the controller/processor 490 of fig. 4 of the present application; second receiver 1202 includes transmitter/receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 of fig. 4; the first processor 1203 includes the transmitter/receiver 456 (including the antenna 460), the transmit processor 455, the receive processor 452, and the controller/processor 490 of fig. 4 of the present application.

In embodiment 12, a first receiver 1201 receives first information used for determining a target carrier and second information used for determining a first indication, the first indication being a positive integer; the second receiver 1202 monitors a first signaling in a first alternative resource set, where a frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the first processor 1203, when the first signaling is detected, operates on a first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time-frequency resource occupied by the first signal; wherein the operation is a transmission or the operation is a reception; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

As an embodiment, when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first domain is carried in the first signaling, and a value of the first domain is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

As an embodiment, the first receiver 1201 receives the third information; wherein the third information is used to determine that the first carrier is self-scheduled.

As an embodiment, the second information and the first information are carried through two different domains in the same signaling, or the second information is carried through signaling for the first carrier.

As an embodiment, a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to determine a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

For one embodiment, second receiver 1202 monitors second signaling in a second set of alternative resources when the first carrier and the target carrier are the same; wherein, a frequency domain resource occupied by the signal carrying the first information belongs to a second carrier, the first information is used for determining a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for determining the time-frequency resources occupied by the signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

For one embodiment, first receiver 1201 receives the fourth information; wherein the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

Example 13

Embodiment 13 illustrates a block diagram of a processing apparatus in a second node device according to an embodiment, as shown in fig. 13. In fig. 13, the second node device processing apparatus 1300 includes a first transmitter 1301, a second transmitter 1302, and a second processor 1303. The first transmitter 1301 includes the transmitter/receiver 416 (including the antenna 460), the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application; the second transmitter 1302 includes the transmitter/receiver 416 (including the antenna 460), the transmit processor 415, and the controller/processor 440 of fig. 4 herein; the second processor 1303 includes the transmitter/receiver 416 (including the antenna 460), the receive processor 412, the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application.

In embodiment 13, a first transmitter 1301 transmits first information used to indicate a target carrier and second information used to indicate a first indication, the first indication being a positive integer; a second transmitter 1302 sends a first signaling in a first alternative resource set, where a frequency domain resource occupied by the first alternative resource set belongs to a first carrier; the second processor 1303 executes the first signal; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for indicating the time-frequency resource occupied by the first signal; wherein the performing is receiving or the performing is transmitting; the first alternative resource set comprises a positive integer of alternative resource groups, and the first signaling occupies one alternative resource group in the first alternative resource set; any one alternative resource group in the first alternative resource set belongs to a target resource pool; a target indication is a non-negative integer, said target indication being used to determine said first set of alternative resources from said target resource pool; whether the first carrier and the target carrier are the same is used to determine whether the target indication is equal to the first indication.

As an example, the above sentence "the execution is reception or the execution is transmission" includes the following meanings: the performing is one of transmitting and receiving.

As an example, the above sentence "the execution is reception or the execution is transmission" includes the following meanings: the performing is sending.

As an example, the above sentence "the execution is reception or the execution is transmission" includes the following meanings: the performing is receiving.

As an example, the above sentence "the execution is reception or the execution is transmission" includes the following meanings: when the performing is receiving, the first signal is an uplink signal; when the performing is transmitting, the first signal is a downlink signal.

As an example, the above sentence "the execution is reception or the execution is transmission" includes the following meanings: when the performing is receiving, the first signal is transmitted by an uplink signal; when the performing is transmitting, the first signal is transmitted through a downlink channel.

As an embodiment, when the operation in the present application is reception, the execution is transmission; when the operation in this application is transmission, the execution is reception.

As an embodiment, when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first field is carried in the first signaling, and a value of the first field is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

As an example, the first transmitter 1301 transmits the third information; wherein the third information is used to indicate that the first carrier is self-scheduled.

As an embodiment, a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to indicate a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

As an embodiment, when the first carrier and the target carrier are the same, the second transmitter 1302 sends a second signaling in a second alternative set of resources; wherein, a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used for indicating a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier in a cross-carrier manner; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for indicating the time-frequency resources occupied by the signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

As an example, the first transmitter 1301 transmits the fourth information; wherein the fourth information is used to indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

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

Claims

1. A first node device for use in wireless communications, comprising:

a first receiver that receives first information and second information, the first information being used to determine a target carrier, the second information being used to determine a first indication, the first indication being a positive integer;

a first handler to manipulate a first signal when the first signaling is detected; the frequency domain resource occupied by the first signal belongs to the first carrier, and the first signaling is used for determining the time frequency resource occupied by the first signal;

2. The first node device of claim 1, wherein when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first field is carried in the first signaling, and a value of the first field is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

3. The first node apparatus of any one of claims 1 or 2, wherein the first receiver receives third information; wherein the third information is used to determine that the first carrier is self-scheduled.

4. The first node device of any of claims 1-3, wherein the second information and the first information are carried over two different domains in the same signaling, or wherein the second information is carried over signaling for the first carrier.

5. The first node device according to any of claims 1 to 4, wherein a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to determine a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

6. The first node device of claim 5, wherein the second receiver monitors for second signaling in a second set of alternative resources when the first carrier and the target carrier are the same; wherein, the frequency domain resource occupied by the second alternative resource set belongs to the first carrier, the second signaling is used to determine the time-frequency resource occupied by the signal transmitted on the second carrier, the second alternative resource set includes a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

7. The first node device of any of claims 1-6, wherein the first receiver receives fourth information; wherein the fourth information is used to determine the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

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

a first transmitter to transmit first information and second information, the first information being used to indicate a target carrier, the second information being used to indicate a first indication, the first indication being a positive integer;

9. The second node device of claim 8, wherein the target indication is equal to the first indication when the first carrier and the target carrier are the same, wherein a first field is carried in the first signaling, and wherein a value of the first field is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

10. Second node arrangement according to claim 8 or 9, characterized in that the first transmitter is arranged to transmit the third information; wherein the third information is used to indicate that the first carrier is self-scheduled.

11. The second node device of any of claims 8 to 10, wherein the second information and the first information are carried over two different domains in the same signaling, or wherein the second information is carried over signaling for the first carrier.

12. The second node device according to any of claims 8 to 11, wherein a frequency domain resource occupied by a signal carrying the first information belongs to a second carrier, the first information is used to indicate a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

13. The second node device of claim 12, wherein a second transmitter sends second signaling in a second set of alternative resources when the first carrier and the target carrier are the same; wherein, a frequency domain resource occupied by the signal carrying the first information belongs to the second carrier, the first information is used for indicating a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers; the frequency domain resources occupied by the second alternative resource set belong to the first carrier, the second signaling is used for indicating the time-frequency resources occupied by the signals transmitted on the second carrier, the second alternative resource set comprises a positive integer of alternative resource groups, and the second signaling occupies one of the alternative resource groups in the second alternative resource set; any one alternative resource group in the second alternative resource set belongs to the target resource pool; a second indication is used to determine the second set of alternative resources from the target resource pool, the second indication being equal to 0.

14. Second node device according to any of claims 8 to 13, wherein the first transmitter transmits the fourth information; wherein the fourth information is used to indicate the number of alternative resource groups comprised by the target resource pool and the first alternative resource set.

15. A method in a first node device for use in wireless communications, comprising:

receiving first information and second information, the first information being used for determining a target carrier, the second information being used for determining a first indication, the first indication being a positive integer;

16. The method in a first node device of claim 15,

when the first carrier and the target carrier are the same, the target indication is equal to the first indication, a first domain is carried in the first signaling, and the value of the first domain is equal to the target indication; when the first carrier and the target carrier are not the same, the target indication is equal to a predefined non-negative integer other than the first indication.

17. The method in the first node device according to claim 15 or 16, further comprising:

receiving third information;

18. The method in a first node arrangement according to any of claims 15-17,

the second information and the first information are carried through two different domains in the same signaling, or the second information is carried through the signaling for the first carrier.

19. The method in the first node device according to any of claims 15 to 18, wherein the frequency domain resources occupied by the signal carrying the first information belong to a second carrier, the first information is used to determine a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

20. The method in the first node device of claim 19, wherein when the first carrier and the target carrier are the same, further comprising:

monitoring for second signaling in a second set of alternative resources;

21. The method in a first node arrangement according to any of claims 15-20,

receiving fourth information;

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

23. The method in a second node device of claim 22,

24. A method in a second node device according to claim 22 or 23, further comprising:

sending third information;

25. A method in a second node device according to any of claims 22-24, wherein the second information and the first information are carried over two different domains in the same signalling, or the second information is carried over signalling for the first carrier.

26. The method in the second node device according to any of claims 22 to 25, wherein the frequency domain resources occupied by the signal carrying the first information belong to a second carrier, the first information is used to indicate a first index, the first index is an index of the target carrier, and the target carrier schedules the second carrier across carriers.

27. The method in a second node device according to claim 26, further comprising, when the first carrier and the target carrier are the same:

transmitting second signaling in the second alternative resource set;

28. A method in a second node device according to any of claims 22-27, further comprising:

sending fourth information;