CN113260055B

CN113260055B - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113260055B
Application number: CN202010090320.6A
Authority: CN
Inventors: 蒋琦; 刘铮; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2022-11-25
Anticipated expiration: 2040-02-13
Also published as: CN113260055A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives target information; then monitoring a first signaling in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets; a first alternative resource set is one of the K1 alternative resource sets, the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, and one alternative resource set in the K1 alternative resource sets does not belong to the first resource pool; the index of the first set of alternative resources among the K1 sets of alternative resources is a first index, the first identification and the target information are both used to determine the first index, and the first index is used to determine a time-frequency location of the first set of alternative resources. The method and the device optimize the blind detection strategy of the control signaling under the multiple transmission receiving points so as to improve the system performance.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method and apparatus in MIMO (multiple Input multiple Output) under Release 17 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 a conventional LTE (Long-Term Evolution) system and an LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system, in order to improve a transmission bandwidth, an MIMO technology is introduced to improve throughput and a transmission rate of the system. In 5G and NR systems, beamforming (Beamforming) schemes are further proposed to further enhance transmission efficiency.

In 5G and subsequent Release 17 evolution, the Multi-Beam (Multi-Beam) scheme will be evolved and enhanced continuously, and one important aspect is how to enhance the transmission performance of PDCCH (Physical Downlink Control Channel) under Multi-Beam, especially under the scenario that Multi-TRP (Multi-Transmitter Receiver Points) adopts Multi-Beam.

Disclosure of Invention

In a Multi-TRP combined Multi-beam scene, a solution for enhancing PDCCH performance is to send PDCCHs carrying the same information on beams corresponding to multiple TRPs at the same time, so as to achieve an effect of diversity gain. However, the conventional PDCCH blind detection of Release 16 does not consider the above problem, one PDCCH is often blindly detected in one Search Space (Search Space), and optimization for multi-beam scenes is not performed between different Search spaces.

In view of the above, the present application provides a solution. It should be noted that, in the above problem description, the Multi-TRP scenario is only used as an example of an application scenario of the solution provided in the present application; the method is also applicable to a scene with multiple base stations, for example, and achieves the technical effect similar to that in a Multi-TRP scene. Similarly, the present application is also applicable to scenarios such as Carrier Aggregation (Carrier Aggregation) or internet of things (V2X) communication, so as to achieve similar technical effects. In addition, the adoption of a unified solution for different scenes also helps to reduce hardware complexity and cost.

In view of the above, the present application provides a solution. It should be noted that, without conflict, the embodiments and features in the embodiments in the first node of the present application may be applied to the second node and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

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

receiving target information;

monitoring a first signaling in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, a resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an example, the above method has the benefits of: the K1 alternative resource sets are respectively located in M1 different alternative resource pools, and the M1 different alternative resource pools are respectively M1 search spaces allocated to M1 TRPs; in the scene, the first node can perform blind detection according to different blind detection modes; the first way is that alternative resource sets (i.e. PDCCH alternatives) of the same AL (Aggregation Level) are evenly allocated to M1 search spaces and are interleaved (Interleaver) mapped, which ensures that M1 times of continuous blind detections for PDCCH alternatives of the same AL by the first node are sequentially performed in M1 search spaces, respectively; in a second manner, the candidate resource sets (i.e. PDCCH candidates) of the same AL are evenly allocated to M1 search spaces and mapped continuously, which ensures that M1 times of continuous blind detections for PDCCH candidates of the same AL by the first node are sequentially performed in only one search space of M1 search spaces; in the first mode, the transmission of the PDCCH can better realize the effect of diversity gain, and PDCCH alternatives of the same AL from a plurality of search spaces can be combined; the blind detection of PDCCH in the second way enables Early Termination (Early-Termination) with a greater probability.

As an example, another benefit of the above method is: the target information is introduced to realize switching between two modes, thereby further increasing flexibility.

According to an aspect of the present application, the second alternative resource set is one of the K1 alternative resource sets and is outside the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

As an embodiment, the above method is characterized in that: when the first index and the second index are discontinuous, the first mode is adopted; when the first index and the second index are consecutive, the second way is indicated.

According to an aspect of the present application, when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 first-class candidate resource sets, the K2 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K2 first-class candidate resource sets, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 first-class candidate resource sets are consecutive, and the K2 first-class candidate resource sets are sequentially mapped to M1 candidate resource pools, where the M1 candidate resource pools include the first resource pool; the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple of the M1.

As an example, the above method has the benefits of: the PDCCH candidates with the same AL and continuous indexes are sequentially mapped into the M1 candidate resource pools and are sequentially subjected to blind detection; the above manner realizes diversity gain, and ensures that the first node can detect the PDCCH as long as the PDCCH performance sent by one TRP is good in the M1 TRPs corresponding to the M1 alternative resource pools.

According to an aspect of the present application, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 first-class candidate resource sets, the K3 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 first-class candidate resource sets, K3 is a positive integer greater than 1, the K3 indexes corresponding to the K3 first-class candidate resource sets are consecutive, and at least one first-class candidate resource set including two corresponding consecutive indexes among the K3 first-class candidate resource sets is mapped to a given resource pool.

As an example, the above method has the benefits of: PDCCH candidates which are the same in AL and continuous in index are mapped into the M1 candidate resource pools in a grouping mode, blind detection on the PDCCH which is the same in AL is firstly executed for multiple times in a candidate resource pool corresponding to one TRP, and then executed for multiple times in a candidate resource pool corresponding to another TRP; the above-mentioned method ensures that when the transmission performance of a plurality of TRPs is similar, the blind detection of the PDCCH can be terminated early, thereby reducing the delay.

According to an aspect of the application, the meaning that the first index is used to determine the time-frequency positions of the positive integer number of resource groups occupied by the first candidate resource set includes: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, wherein M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

As an embodiment, the essence of the above method is: and determining the blind detection sequence of the K1 alternative resource set through the first index.

According to an aspect of the present application, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to a detection order that the candidate resource pool is first and the aggregation level is second.

As an embodiment, the essence of the above method is: the first order corresponds to the first mode in the present application, and the second order corresponds to the second mode in the present application.

According to one aspect of the application, comprising:

receiving a first signal;

wherein the first signaling is used to indicate the third set of time-frequency resources.

According to one aspect of the application, comprising:

transmitting a first signal;

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

sending target information;

sending a first signaling in one or more alternative resource sets in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

According to an aspect of the application, the second alternative resource set is one of the K1 alternative resource sets and is outside the first alternative resource set; the first alternative resource set and the second alternative resource set both occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second candidate resource set in the K1 candidate resource sets is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

According to an aspect of the application, the meaning that the first index is used to determine the time-frequency positions of the positive integer number of resource groups occupied by the first alternative resource set includes: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, wherein M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

According to an aspect of the present application, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used for indicating that the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to a detection order that the candidate resource pool is first and the aggregation level is second.

According to one aspect of the application, comprising:

transmitting a first signal;

According to one aspect of the application, comprising:

receiving a first signal;

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

a first receiver receiving target information;

a first transceiver that monitors first signaling among K1 sets of alternative resources, each of the K1 sets of alternative resources comprising a positive integer number of resource groups;

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

a first transmitter for transmitting the target information;

a second transceiver, configured to send a first signaling in one or more of K1 candidate resource sets, where each of the K1 candidate resource sets includes a positive integer number of resource groups;

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

the K1 candidate resource sets are respectively located in M1 different candidate resource pools, and the M1 different candidate resource pools are respectively M1 search spaces allocated to M1 TRPs; in the scene, the first node can carry out blind detection according to different blind detection modes; the first way is that the candidate resource sets of the same AL are evenly distributed into M1 search spaces and are interleaved and mapped, which ensures that the blind detection of the first node M1 times continuously for the candidate resource sets of the same AL are sequentially performed in M1 search spaces, respectively; in a second way, the candidate resource sets with the same AL are evenly distributed into M1 search spaces and are mapped continuously, which ensures that the blind detection of the first node M1 times continuously for the candidate resource sets with the same AL is performed in sequence only in one search space of the M1 search spaces; in the first mode, the transmission of the PDCCH can better realize the effect of diversity gain, and alternative resource sets of the same AL from a plurality of search spaces can be combined; in the second mode, the blind detection of the PDCCH can be terminated in advance with higher probability; meanwhile, the target information is introduced to realize switching between two modes, so that the flexibility is further increased;

candidate resource sets with the same AL and continuous indexes are sequentially mapped into the M1 candidate resource pools and are sequentially blindly detected; the above manner realizes diversity gain, and ensures that the first node can detect the PDCCH as long as the PDCCH transmitted by one TRP among the M1 TRPs corresponding to the M1 alternative resource pools has good performance;

the PDCCH candidates with the same AL and consecutive indexes are mapped into the M1 candidate resource pools in groups, and the PDCCH blind detection with the same AL is performed multiple times in the candidate resource pool corresponding to one TRP, and then performed multiple times in the candidate resource pool corresponding to another TRP; the mode ensures that when the transmission performance of a plurality of TRPs is almost the same, the blind detection of the PDCCH can be terminated in advance, thereby reducing the delay.

Drawings

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

FIG. 1 illustrates a process flow diagram for a first node according to one 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 an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

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

fig. 5 shows a flow diagram of first signaling according to an embodiment of the application;

FIG. 6 shows a flow diagram of a first signal according to an embodiment of the present application;

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

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

FIG. 9 shows a schematic diagram of K1 alternative resource sets according to one embodiment of the present application;

FIG. 10 shows a schematic diagram of K1 alternative resource sets according to another embodiment of the present application;

fig. 11 shows a schematic diagram of blind detection of the first signaling according to an embodiment of the application;

fig. 12 shows a schematic diagram of blind detection of the first signaling according to another embodiment of the present application;

fig. 13 shows a schematic diagram of a blind detection of the first signaling according to a further embodiment of the present application;

FIG. 14 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

fig. 15 shows a block diagram of a structure used in a second node according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives target information in step 101; in step 102, a first signaling is monitored among K1 alternative resource sets, each of the K1 alternative resource sets comprising a positive integer number of resource groups.

In embodiment 1, a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used to identify the first resource pool, a resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an embodiment, the first node supports receiving DCI (Downlink Control Information) on a plurality of TRPs.

As an embodiment, the first node supports blind detection of PDCCH on multiple TRPs.

As an embodiment, the first node supports merging PDCCH detected on multiple TRPs.

As an embodiment, the first node supports receiving repeated (Repetition) transmissions of multiple PDCCHs carrying one DCI from multiple TRPs.

As an embodiment, what carries the target information is RRC (Radio Resource Control) signaling.

As an embodiment, a MAC (Medium Access Control) CE (Control Element) for carrying the target information.

As an embodiment, the K1 candidate resource sets are K1 PDCCH Candidates, respectively.

As an embodiment, the positive integer resource components are respectively positive integer CCEs (Control Channel elements).

As an embodiment, any one resource group of the positive integer number of resource groups occupies 72 REs.

As a sub-embodiment of this embodiment, a part of REs out of the 72 REs is used to transmit DM-RS (Demodulation Reference Signal).

As an embodiment, the Resource group in this application occupies a positive integer number of REs (Resource Elements).

As an embodiment, any one of the K1 candidate resource sets includes X1 CCEs, and the X1 is equal to one of 1,2,4,8, 16.

As an embodiment, the time-frequency resources occupied by the K1 alternative resource sets belong to time-frequency resources occupied by an alternative resource pool group, the alternative resource pool group includes M1 alternative resource pools, the time-frequency resources occupied by any one of the K1 alternative resource sets belong to one of the M1 alternative resource pools, and M1 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, the M1 alternative resource pools are associated to M1 TRPs, respectively.

As a sub-embodiment of this embodiment, at least two of the M1 alternative resource pools are associated to different TRPs, respectively.

As a sub-embodiment of this embodiment, the M1 alternative resource pools are respectively associated to M1 TCI-State (Transmission Configuration Indication State) groups, any one of the M1 TCI-State groups comprising one or more TCI-State.

As a sub-embodiment of this embodiment, the M1 alternative Resource pools are M1 CORESET (Control Resource Set), respectively.

As a sub-embodiment of this embodiment, the M1 alternative resource pools respectively correspond to M1 controlresourcesetidld.

As an additional implementation of this sub-embodiment, any two ControlResourceSetId of the M1 controlresourcesetids are different.

As a sub-embodiment of this embodiment, the M1 candidate resource pools are M1 Search spaces (Search spaces), respectively.

As a sub-embodiment of this embodiment, the M1 alternative resource pools respectively correspond to M1 searchspaceids.

As an adjunct implementation of this sub-embodiment, any two SearchSpaceID of the M1 SearchSpaceID are different.

As an embodiment, the first resource pool is associated to a first TRP.

As an embodiment, the first resource pool is associated to a first TCI-State group, the first TCI-State group comprising one or more TCI-states, the first signaling being used to indicate one TCI-State from the first TCI-State group.

As an embodiment, the first resource pool is 1 CORESET.

As an embodiment, the first resource pool corresponds to 1 ControlResourceSetId.

As one embodiment, the first resource pool is 1 Search Space (Search Space).

As an embodiment, the first resource pool corresponds to 1 SearchSpaceID.

As an embodiment, the first identity is used to determine a first TRP, the first resource pool is allocated to the first TRP.

As an embodiment, the first identification is used to identify a first control resource group Pool (CORESET Pool) comprising a first control resource group (CORESET), the first set of control resources being associated with the first resource Pool.

As a sub-embodiment of the two embodiments, the first control resource group pool includes Q1 control resource groups, the first control resource group is one of the Q1 control resource groups, and Q1 is a positive integer greater than 1.

As a sub-embodiment of the above two embodiments, the first control resource group pool is allocated to the first TRP.

For one embodiment, the first identification is used to identify the first resource pool.

As an embodiment, the meaning that the K1 candidate resource sets are sequentially indexed in the above sentence includes: the K1 candidate resource sets respectively correspond to K1 indexes, and any index in the K1 indexes is a non-negative integer.

As a sub-embodiment of this embodiment, the K1 indices are equal to 0 through (K1-1), respectively.

As a sub-embodiment of this embodiment, the first node sequentially detects the K1 candidate resource sets corresponding to the K1 indexes from small to large.

As an embodiment, the first signaling is DCI.

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

As an embodiment, the first signaling is PDCCH.

As an embodiment, the frequency domain resource occupied by the first signaling is between 450MHz and 6 GHz.

As an embodiment, the frequency domain resource occupied by the first signaling is between 24.25GHz and 52.6 GHz.

Example 2

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

FIG. 2 illustrates a diagram of a network architecture 200 for the 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, ng-RANs (next generation radio access networks) 202, epcs (Evolved Packet Core)/5G-CNs (5G-Core Network,5G Core Network) 210, hss (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 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. UE201 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213.MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the UE201 is a terminal supporting Massive MIMO (large-scale multiple input multiple output).

As an embodiment, the UE201 is capable of receiving PDCCH on multiple TRPs.

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

As an embodiment, the gNB203 supports Massive MIMO (Massive multiple input multiple output).

As an embodiment, the gNB203 includes a plurality of TRPs.

As a sub-embodiment of this embodiment, the plurality of TRPs is used for transmission of a plurality of beams.

As a sub-embodiment of this embodiment, the plurality of TRPs are connected to each other via the X2 interface.

As a sub-embodiment of this embodiment, the plurality of TRPs are connected to each other via Ideal Backhaul.

As a sub-embodiment of this embodiment, the cooperation (Coordination) Delay (Delay) between the plurality of TRPs does not affect the dynamic scheduling.

As a sub-embodiment of this embodiment, the plurality of TRPs cooperate with each other through a unified scheduling processor.

As a sub-embodiment of this embodiment, the plurality of TRPs cooperate with each other through a unified baseband processor.

As one embodiment, the gNB203 supports multi-beam transmission.

As an embodiment, the gNB203 may be capable of serving the first node on both an LTE-a carrier and an NR carrier.

As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

As an embodiment, the radio link between the UE201 and the gNB203 is a cellular link.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above the PHY301 and is responsible for the link between the first communication node device and the second communication node device through the PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 for the first communication node device and the second communication node device is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes 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 Service diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

The radio protocol architecture of fig. 3 applies to the second node in this application as an example.

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

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

For one embodiment, the destination information is generated in the MAC352 or the MAC302.

As an embodiment, the target information is generated at the RRC306.

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

For one embodiment, the first signaling is generated in the MAC352 or the MAC302.

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

For one embodiment, the first signal is generated at the MAC352 or the MAC302.

As an embodiment, the first signal is generated at the RRC306.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving target information; monitoring a first signaling in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving target information; monitoring a first signaling in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: sending target information; sending a first signaling in one or more alternative resource sets in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; the K1 is a positive integer greater than 1.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending target information; sending a first signaling in one or more alternative resource sets in K1 alternative resource sets, wherein each alternative resource set in the K1 alternative resource sets comprises a positive integer number of resource sets; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; the K1 is a positive integer greater than 1.

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

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

For one embodiment, the first communication device 450 is a UE.

For one embodiment, the first communication device 450 is a terminal.

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

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

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to monitor for a first signaling among K1 alternative resource sets, each of the K1 alternative resource sets comprising a positive integer number of resource sets; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are configured to send first signaling in one or more of K1 alternative resource sets, each of the K1 alternative resource sets comprising a positive integer number of resource sets.

As an example, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 may be configured to receive a first signal in a third set of time-frequency resources; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are configured to send the first signal in a third set of time-frequency resources.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send a first signal in a third set of time-frequency resources; at least the first four of the antennas 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are configured to receive a first signal in a third set of time-frequency resources.

Example 5

Embodiment 5 illustrates a flow chart of the first signaling, as shown in fig. 5. In fig. 5, a first node U1 communicates with a second node N2 via a wireless link; the embodiment, the sub-embodiment, and the subsidiary embodiment in embodiment 5 can be applied to embodiment 6 without conflict.

For theFirst node U1Receiving target information in step S10; monitoring a first signaling in K1 alternative resource sets in step S11; the first signal is received in a third set of time-frequency resources in step S12.

For theSecond node N2Transmitting the target information in step S20; transmitting first signaling in one or more of the K1 alternative resource sets in step S21; the first signal is transmitted in a third set of time-frequency resources in step S22.

In embodiment 5, each of the K1 candidate resource sets includes a positive integer number of resource groups; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1; the first signaling is used to indicate the third set of time-frequency resources.

As an embodiment, the second alternative resource set is one alternative resource set out of the K1 alternative resource sets and outside the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

As a sub-embodiment of this embodiment, the REs occupied by the second alternative resource set is orthogonal to the REs occupied by the first alternative resource set.

As a sub-embodiment of this embodiment, there is not one RE belonging to both the first alternative resource set and the second alternative resource set.

As a sub-embodiment of this embodiment, the target information is used to explicitly indicate whether the first index and the second index are consecutive.

As a sub-embodiment of this embodiment, the target information is used to implicitly indicate whether the first index and the second index are consecutive.

As a sub-embodiment of this embodiment, the time-frequency resources occupied by the K1 alternative resource sets belong to time-frequency resources occupied by an alternative resource pool group, the alternative resource pool group includes M1 alternative resource pools, and when the target information indicates that the M1 alternative resource pools are associated, the first index and the second index are discontinuous.

As a sub-embodiment of this embodiment, the time-frequency resources occupied by the K1 alternative resource sets belong to time-frequency resources occupied by an alternative resource pool, the alternative resource pool includes M1 alternative resource pools, and when the target information indicates that the M1 alternative resource pools are independent, the first index and the second index are continuous.

As a sub-embodiment of this embodiment, the meaning that the resource group occupied by the second candidate resource set belongs to the first resource pool includes: the second alternative resource set occupies a positive integer number of resource groups, and the REs occupied by any one of the positive integer number of resource groups occupied by the second alternative resource set all belong to the REs occupied by the M1 alternative resource pools.

As an embodiment, when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 first-class candidate resource sets, the K2 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K2 first-class candidate resource sets, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 first-class candidate resource sets are consecutive, and the K2 first-class candidate resource sets are sequentially mapped to M1 candidate resource pools, where the M1 candidate resource pools include the first resource pool; the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple of the M1.

As a sub-embodiment of this embodiment, the K2 first-class alternative resource sets are K2 PDCCH alternatives in the same aggregation level, respectively.

As a sub-embodiment of this embodiment, the M1 alternative resource pools are respectively allocated to M1 TRPs.

As a subsidiary embodiment of this sub-embodiment, said M1 TRPs comprise said first TRP.

As a sub-embodiment of this embodiment, time domain resources occupied by any two of the M1 alternative resource pools are orthogonal.

As a sub-embodiment of this embodiment, frequency domain resources occupied by any two of the M1 alternative resource pools are orthogonal.

As a sub-embodiment of this embodiment, REs occupied by any two of the M1 alternative resource pools is orthogonal.

As a sub-embodiment of this embodiment, the meaning that M1 is equal to K2, and the aforementioned sentence that the K2 candidate resource sets of the first class are sequentially mapped into M1 candidate resource pools includes: indexes corresponding to the K2 first-class alternative resource sets are respectively equal to # i to # (i + K2-1), and the M1 alternative resource pools are identified as alternative resource pool #0 to alternative resource pool # (M1-1); the first type of alternative resource set with index equal to # i is mapped to alternative resource pool #0, the first type of alternative resource set with index equal to # (i + 1) is mapped to alternative resource pool #1, and so on, the first type of alternative resource set with index equal to # (i + K2-1) is mapped to alternative resource pool # (M1-1).

As a sub-embodiment of this embodiment, the K2 is M2 times of the M1, the M2 is a positive integer greater than 1, and the above sentence indicates that the K2 first-class candidate resource sets are sequentially mapped to M1 candidate resource pools, which includes: the index of any one of the K2 first-class alternative resource sets is equal to # [ i + j (M1-1) ], where i is an integer not less than 0 and less than M1, and j is an integer not less than 0 and less than M2; when j is fixed, M1 first-class alternative resource sets corresponding to indexes # j (M1-1) ] to indexes # M1-1+ j (M1-1) ] are sequentially mapped to alternative resource pools #0 to # M1-1.

As an embodiment, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 first-class candidate resource sets, the K3 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 first-class candidate resource sets, K3 is a positive integer greater than 1, the K3 indexes corresponding to the K3 first-class candidate resource sets are consecutive, and at least one first-class candidate resource set including two corresponding consecutive indexes among the K3 first-class candidate resource sets is mapped to a given resource pool.

As a sub-embodiment of this embodiment, the two candidate resource sets of the first class corresponding to the consecutive indexes are the first candidate resource set and the second candidate resource set, respectively, and the given resource pool is the first resource pool.

As a sub-embodiment of this embodiment, when the target information indicates that the first index and the second index are consecutive, the K3 first-class candidate resource sets are segmentally mapped into M1 candidate resource pools, where the M1 candidate resource pools include the first resource pool; the K3 is a positive integer multiple of the M1.

As an auxiliary embodiment of this sub-embodiment, the K3 first-class candidate resource sets are divided into M1 first-class candidate resource set groups, any one first-class candidate resource set group in the M1 first-class candidate set resource groups includes M3 first-class candidate resource sets with consecutive indexes, K3 is equal to (M1 × M3), M3 is a positive integer greater than 1, and the M1 first-class candidate set resource groups are respectively mapped into the M1 candidate resource pools.

As an embodiment, the meaning that the first index is used to determine the time-frequency positions of the positive integer number of resource groups occupied by the first candidate resource set in the above sentence includes: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

As a sub-embodiment of this embodiment, the Q2 resource groups are CCEs of Q2.

As a sub-embodiment of this embodiment, the Q1 resource groups are CCEs of Q1.

As a sub-embodiment of this embodiment, said M1 is equal to said K2.

As a sub-embodiment of this embodiment, when the target information is equal to 1, the target information indicates that the first index and the second index are non-consecutive; when the target information is equal to 0, the target information indicates that the first index and the second index are consecutive.

As a sub-embodiment of this embodiment, when the target information is equal to 0, the target information indicates that the first index and the second index are non-consecutive; when the target information is equal to 1, the target information indicates that the first index and the second index are consecutive.

As an embodiment, when the target information indicates that the M1 alternative resource pools are associated, the target information indicates that the first index and the second index are non-consecutive; when the target information indicates that the M1 alternative resource pools are independent, the target information indicates that the first index and the second index are consecutive.

As an embodiment, when the target information indicates that the first index and the second index are non-consecutive, the first identifier and the target information determine the first index by the following formula, and the first index determines the time-frequency position of a positive integer number of resource groups occupied by the first alternative resource set by the following formula,

wherein, the first and the second end of the pipe are connected with each other,

with reference to the definition in TS 38.213, i is equal to 0 to (L-1); l represents an aggregation level adopted by the first alternative resource set; n is a radical of _CCE,p Representing the number of all CCEs included in the M1 alternative resource pools; n is a radical of an alkyl radical _CI Is used for cross-carrier scheduling and specifically takes the definition in TS 38.213;

corresponds to the first index, and

is equal to 0 to

Is shown at corresponding n _CI The number of candidate resource sets that need to be monitored for aggregation level L in the M1 candidate resource pools on the serving cell, W is equal to M1.

As an embodiment, when the target information indicates that the first index and the second index are consecutive, the first identifier and the target information determine the first index by the following formula, and the first index determines the time-frequency position of a positive integer number of resource groups occupied by the first alternative resource set by the following formula,

wherein the content of the first and second substances,

with reference to the definition in TS 38.213, i is equal to 0 to (L-1); l represents an aggregation level adopted by the first alternative resource set; n is a radical of hydrogen _CCE,p Representing in the M1 alternative resource poolsAll CCE numbers included in (1); n is _CI Is used for cross-carrier scheduling and specifically takes the definition in reference TS 38.213;

corresponds to the first index, and

is equal to 0 to

Is shown at corresponding n _CI The number of candidate resource sets that need to be monitored for the aggregation level L in the M1 candidate resource pools on the serving cell.

wherein the content of the first and second substances,

with reference to the definition in TS 38.213, i is equal to 0 to (L-1); l represents an aggregation level adopted by the first alternative resource set; r represents that the first resource pool is the (r + 1) th alternative resource pool of the M1 alternative resource pools, and r is equal to 0 to (M1-1);

indicating the number of CCEs included in the first resource pool; n is _CI Is used for cross-carrier scheduling and specifically takes the definition in TS 38.213;

corresponds to the first index, and

is equal to 0 to

Is shown at corresponding n _CI The number of candidate resource sets to be monitored for the aggregation level L in the first resource pool on the serving cell.

As an embodiment, when the target information indicates that the first index and the second index are consecutive, the first node U1 sequentially performs detection on the first signaling in the M1 candidate resource pools according to sequence numbers of the candidate resource pools.

As a sub-embodiment of this embodiment, a second identifier corresponding to a second resource pool is greater than the first identifier corresponding to the first resource pool, Y1 candidate resource sets of the K1 candidate resource sets belong to the first resource pool, and Y2 candidate resource sets of the K1 candidate resource sets belong to the second resource pool; at least two alternative resource sets in the Y1 alternative resource sets occupy resource groups with different numbers, and at least two alternative resource sets in the Y2 alternative resource sets occupy resource groups with different numbers; and after completing the detection on the Y1 candidate resource sets, the first node U1 performs the detection on the Y2 candidate resource sets.

As a sub-embodiment of this embodiment, an index corresponding to any one of the Y1 candidate resource sets is smaller than an index corresponding to any one of the Y2 candidate resource sets.

As an embodiment, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used for indicating that the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node U1 detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node U1 detects the K1 candidate resource sets according to the detection order that the candidate resource pool is first and the aggregation level is second.

As a sub-embodiment of this embodiment, the target information indicates that the M1 candidate resource pools are associated, and the detection order of the K1 candidate resource sets is the first order.

As a sub-embodiment of this embodiment, the target information indicates that the M1 candidate resource pools are independent, and the detection order of the K1 candidate resource sets is the second order.

As a sub-embodiment of this embodiment, the first order means that the first node U1 detects candidate resource sets with a lower aggregation level in the M1 candidate resource pools in sequence, and then the first node U1 detects candidate resource sets with a higher aggregation level in the M1 candidate resource pools in sequence.

As a sub-embodiment of this embodiment, the second order refers to that the first node U1 first detects, in the candidate resource pool with the smaller identifier among the M1 candidate resource pools, the candidate resource sets corresponding to all supported aggregation levels, and then the first node U1 detects, in the candidate resource pool with the larger identifier among the M1 candidate resource pools, the candidate resource sets corresponding to all supported aggregation levels.

As an embodiment, the first signaling is a Downlink Grant (DL Grant), and the Physical layer Channel carrying the first signaling is a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first signaling is a Downlink Grant (DL Grant), and the transmission Channel carrying the first signal is a DL-SCH (Downlink Shared Channel).

As an embodiment, the first signaling is used for scheduling the first signal.

As an embodiment, the frequency domain resource occupied by the first signal is between 450MHz and 6 GHz.

As an embodiment, the frequency domain resource occupied by the first signal is between 24.25GHz and 52.6 GHz.

As an embodiment, the first signaling is sent by the second node N2 in the first set of alternative resources.

As an embodiment, the first signaling is sent by the second node N2 in one of the K1 alternative resource sets and other than the first alternative resource set.

As an embodiment, the first node U1 detects the first signaling in one of the K1 candidate resource sets.

As an embodiment, the first node U1 detects the first signaling in multiple candidate resource sets of the K1 candidate resource sets.

As an embodiment, a Cyclic Redundancy Check (CRC) included in the first signaling is scrambled by a Cell Radio Network Temporary Identifier (Cell Radio Network Temporary Identifier) assigned to the first node U1.

As an embodiment, a given candidate resource set is any one of the K1 candidate resource sets, and for the given candidate resource set, the first node U1 uses the C-RNTI allocated to the first node U1 to descramble the CRC demodulated by the given candidate resource set to determine whether the given candidate resource set carries the first signaling.

As an embodiment, the second node N2 sends the first signaling in one of the K1 alternative resource sets.

As an embodiment, the second node N2 repeatedly sends the first signaling in multiple alternative resource sets of the K1 alternative resource sets.

As a sub-embodiment of this embodiment, the repeatedly sending the first signaling in multiple candidate resource sets of the K1 candidate resource sets includes: the second node N2 sends the first signaling in each of the plurality of alternative resource sets.

As a sub-embodiment of this embodiment, the repeatedly sending the first signaling in multiple candidate resource sets of the K1 candidate resource sets includes: the second node N2 sends the same set of information in each of the multiple alternative sets of resources, the same set of information being used to generate multiple first signaling, any of which can be independently demodulated.

As a sub-embodiment of this embodiment, the multiple alternative resource sets all employ the same aggregation level.

As a sub-embodiment of this embodiment, at least two candidate resource sets in the multiple candidate resource sets adopt different aggregation levels.

As a sub-embodiment of this embodiment, at least two alternative resource sets exist in the multiple alternative resource sets, the two alternative resource sets are respectively located in two different alternative resource pools, and the two different alternative resource pools both belong to the M1 alternative resource pools.

As a sub-embodiment of this embodiment, the multiple candidate resource sets are respectively located in multiple different candidate resource pools, and the multiple different candidate resource pools all belong to the M1 candidate resource pools.

As an embodiment, the monitoring the first signaling comprises: the first node U1 blindly detects the first signaling.

As one embodiment, the monitoring the first signaling includes: the first node U1 receives the first signaling.

As one embodiment, the monitoring the first signaling includes: the first node U1 decodes the first signaling.

As one embodiment, the monitoring the first signaling includes: the first node U1 decodes the first signaling by coherent detection.

As one embodiment, the monitoring the first signaling includes: the first node U1 decodes the first signaling by energy detection.

Example 6

Embodiment 6 illustrates a flow chart of a first signal, as shown in fig. 6. In fig. 6, a first node U3 communicates with a second node N4 via a wireless link; without conflict, the embodiment, the sub-embodiment, and the subsidiary embodiment in embodiment 6 can be applied to embodiment 5.

For theFirst node U3Receiving target information in step S30; monitoring a first signaling in K1 alternative resource sets in step S31; the first signal is transmitted in a third set of time-frequency resources in step S32.

For theSecond node N4Transmitting the target information in step S40; transmitting first signaling in one or more of the K1 alternative resource sets in step S41; the first signal is received in a third set of time-frequency resources in step S42.

In embodiment 6, each of the K1 candidate resource sets includes a positive integer number of resource groups; the first alternative resource set is one of the K1 alternative resource sets, the resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1; the first signaling is used to indicate the third set of time-frequency resources.

As an embodiment, the first signaling is an Uplink Grant (UL Grant), and a Physical layer Channel carrying the first signaling is a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first signaling is an Uplink Grant (UL Grant), and a transport layer Channel carrying the first signal is an UL-SCH (Uplink Shared Channel).

As an embodiment, the second alternative resource set is one alternative resource set out of the K1 alternative resource sets and outside the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second candidate resource set in the K1 candidate resource sets is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

As an embodiment, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node U3 detects the K1 alternative resource sets according to the detection order of the first aggregation level and the second alternative resource pool; the second order refers to that the first node U3 detects the K1 candidate resource sets according to the detection order that the candidate resource pool is first and the aggregation level is second.

Example 7

Example 7 illustrates a schematic diagram of a first resource pool, as shown in fig. 7. In fig. 7, the first resource pool is one of the M1 alternative resource pools in the present application.

As an embodiment, the time domain resources occupied by the M1 alternative resource pools are orthogonal.

As an embodiment, there is no time domain resource occupied by one multicarrier symbol belonging to any two of the M1 candidate resource pools at the same time.

As an embodiment, the frequency domain resources occupied by the M1 alternative resource pools are orthogonal.

As an embodiment, the REs occupied by the M1 alternative resource pools is orthogonal.

As an embodiment, there is no time-frequency resource occupied by one RE belonging to any two alternative resource pools of the M1 alternative resource pools at the same time.

As an embodiment, the multicarrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier symbol in this application is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

As an example, the multicarrier symbol in this application is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, the multicarrier symbol in this application is an OFDM symbol including a CP (Cyclic Prefix).

As an embodiment, the multi-carrier symbol in this application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol containing a CP.

As an embodiment, the M1 alternative resource pools are allocated to M1 TRPs, respectively.

As a sub-embodiment of this embodiment, the M1 TRPs all belong to one base station.

As a sub-embodiment of this embodiment, the M1 TRPs all belong to one Serving Cell (Serving Cell).

Example 8

Embodiment 8 illustrates a schematic diagram of a second node according to the present application; as shown in fig. 8. In fig. 8, the second node is associated to M1 TRPs; the M1 TRPs transmit wireless signals in M1 beamforming vectors shown in the figure, respectively.

As an embodiment, the M1 TRPs are respectively associated to M1 TCI-State groups, any one of the M1 TCI-State groups comprising a positive integer number of TCI-State.

As an embodiment, the M1 TRPs are respectively associated to M1 CSI-RS (Channel State Information Reference Signal) resources (resources).

As an embodiment, the M1 TRPs are respectively associated to M1 sets of CSI-RS resources, any one of the M1 sets of CSI-RS resources comprising a positive integer number of CSI-RS resources.

As an example, the M1 TRPs are respectively associated to M1 TCI-State.

As an embodiment, the M1 TRPs directly interact through an Ideal Backhaul link (Ideal Backhaul).

As an example, the M1 TRPs are respectively associated to M1 CORESET pools, any one of the M1 CORESET pools comprising a positive integer number of CORESETs.

As a sub-embodiment of this embodiment, the M1 CORESET pools respectively correspond to the M1 alternative resource pools.

As an embodiment, the M1 TRPs are associated to M1 search spaces, respectively.

As a sub-embodiment of this embodiment, the M1 search spaces correspond to M1 alternative resource pools, respectively.

Example 9

Embodiment 9 illustrates a schematic diagram of K1 alternative resource sets, as shown in fig. 9. Fig. 9 corresponds to a scenario when the object information indicates that the first index and the second index are non-consecutive in the present application. In fig. 9, the K1 candidate resource sets include K2 first-class candidate resource sets, the K2 first-class candidate resource sets are respectively mapped to M1 candidate resource pools, and the M1 candidate resource pools are respectively a candidate resource pool #1 to a candidate resource pool # M1; the aggregation levels adopted by the K2 first-class alternative resource sets are the same; and the K2 first-class alternative resource sets respectively correspond to K2 PDCCH alternatives. Dashed line rectangular boxes in the figure represent the M1 alternative resource pools, solid line rectangular boxes in the figure represent the K2 PDCCH alternatives, and numbers in the rectangular boxes identify blind detection sequences of the K2 PDCCH alternatives. The arrows in the figure indicate the order of blind detection; the K2 is equal to M1 multiplied by M2, and the M1 and the M2 are both positive integers.

As an embodiment, the aggregation level adopted by the K2 first-class candidate resource sets is equal to one of 1,2,4,8, 16.

As an embodiment, the aggregation level adopted by the K2 first-class candidate resource sets is equal to X1, and there is no candidate resource set that has a level equal to X1 and does not belong to the K2 candidate resource sets in the aggregation of the K1 candidate resource sets.

As an embodiment, any two of the K1 alternative resource sets are time division multiplexed.

As an embodiment, at least two alternative resource sets of the K1 alternative resource sets are time division multiplexed.

As an embodiment, any two of the K1 alternative resource sets are frequency division multiplexed.

As an embodiment, at least two alternative resource sets of the K1 alternative resource sets are frequency division multiplexed.

As an embodiment, any two of the K1 candidate resource sets are code division multiplexed.

As an embodiment, at least two alternative resource sets of the K1 alternative resource sets are code division multiplexed.

As an embodiment, any two of the K1 candidate resource sets are space division multiplexed.

As an embodiment, at least two alternative resource sets of the K1 alternative resource sets are spatially multiplexed.

Example 10

Embodiment 10 illustrates a schematic diagram of another K1 alternative resource set, as shown in fig. 10. Fig. 10 corresponds to a scenario in which the object information indicates that the first index and the second index are consecutive in the present application. In fig. 10, the K1 candidate resource sets include K3 first-class candidate resource sets, the K3 first-class candidate resource sets are respectively mapped to M1 candidate resource pools, and the M1 candidate resource pools are respectively candidate resource pool #1 to candidate resource pool # M1; the aggregation levels adopted by the K3 first-class alternative resource sets are the same; and the K3 first-class alternative resource sets respectively correspond to K3 PDCCH alternatives. Dashed line rectangular boxes in the figure represent the M1 alternative resource pools, solid line rectangular boxes in the figure represent the K3 PDCCH alternatives, and numbers in the rectangular boxes identify blind detection sequences of the K3 PDCCH alternatives. The arrows in the figure indicate the order of blind detection; the K3 is equal to M1 multiplied by M3, and the M1 and the M3 are both positive integers.

As an embodiment, the aggregation level adopted by the K3 first-class candidate resource sets is equal to one of 1,2,4,8, 16.

As an embodiment, the aggregation level adopted by the K3 first-class candidate resource sets is equal to X1, and there is no candidate resource set that has a level equal to X1 and does not belong to the K3 candidate resource sets in the aggregation of the K1 candidate resource sets.

Example 11

Embodiment 11 illustrates a schematic diagram of blind detection of the first signaling, as shown in fig. 11. Fig. 11 corresponds to a scenario in which the object information indicates that the first index and the second index are non-consecutive in the present application. In fig. 11, M1 equals 2 and K1 equals 40; the first node performs blind detection 40 times in 2 candidate resource pools shown in the figure, where the 40 candidate resource sets respectively include candidate resource sets with AL equal to 1, AL equal to 2, AL equal to 4, AL equal to 8, and AL equal to 16; wherein, the candidate resource sets with AL equal to 1 are 16, the candidate resource sets with AL equal to 2 are 8, the candidate resource sets with AL equal to 4 are 8, the candidate resource sets with AL equal to 8 are 4, and the candidate resource sets with AL equal to 16 are 4; the indexes of the 40 candidate resource sets are candidate #0 to candidate #39 respectively, and the first node performs blind detection from small to large according to the size of the indexes of the candidate resource sets.

The distribution of the 40 alternative resource sets in two alternative resource pools is shown in the figure; alternatives with AL =1 are { alternative #0 to alternative #15}; AL =2 candidates { alternative #16 to alternative #23}; AL =4 alternatives { alternative #24 to alternative #31}; AL =8 alternatives { alternative #32 to alternative #35}; AL =16 candidates { alternative #36 to alternative #40}.

Example 12

Embodiment 12 illustrates another schematic diagram of the blind detection of the first signaling, as shown in fig. 12. Fig. 12 corresponds to a scenario in which the object information indicates that the first index and the second index are consecutive in the present application. In fig. 12, M1 equals 2 and K1 equals 40; the first node performs 40 blind detections in 2 alternative resource pools shown in the figure, where the 40 alternative resource pools respectively include alternative resource pools where AL is equal to 1, AL is equal to 2, AL is equal to 4, AL is equal to 8, and AL is equal to 16; wherein, the candidate resource sets with AL equal to 1 are 16, the candidate resource sets with AL equal to 2 are 8, the candidate resource sets with AL equal to 4 are 8, the candidate resource sets with AL equal to 8 are 4, and the candidate resource sets with AL equal to 16 are 4; the indexes of the 40 candidate resource sets are candidate #0 to candidate #39 respectively, and the first node performs blind detection according to the sizes of the indexes of the candidate resource sets from small to large.

The distribution of the 40 alternative resource sets in two alternative resource pools is shown in the figure; alternatives where AL =1 are { alternative #0 to alternative #15}; AL =2 candidates { alternative #16 to alternative #23}; AL =4 alternatives { alternative #24 to alternative #31}; AL =8 alternatives { alternative #32 to alternative #35}; alternatives AL =16 are { alternative #36 to alternative #40}.

Example 13

Embodiment 13 illustrates a further schematic diagram of the blind detection of the first signaling, as shown in fig. 13. Fig. 13 corresponds to a scenario in which the object information indicates that the first index and the second index are consecutive in the present application. In fig. 13, M1 equals 2 and K1 equals 40; the first node performs 40 blind detections in 2 alternative resource pools shown in the figure, where the 40 alternative resource pools respectively include alternative resource pools where AL is equal to 1, AL is equal to 2, AL is equal to 4, AL is equal to 8, and AL is equal to 16; wherein, the number of candidate resource sets with AL equal to 1 is 16, the number of candidate resource sets with AL equal to 2 is 8, the number of candidate resource sets with AL equal to 4 is 8, the number of candidate resource sets with AL equal to 8 is 4, and the number of candidate resource sets with AL equal to 16 is 4; the indexes of the 40 candidate resource sets are candidate #0 to candidate #39 respectively, and the first node performs blind detection from small to large according to the size of the indexes of the candidate resource sets.

The distribution of the 40 alternative resource sets in two alternative resource pools is shown in the figure; alternatives with AL =1 are { alternative #0 to alternative #15}; AL =2 candidates { alternative #16 to alternative #23}; AL =4 candidates { alternative #24 to alternative #31}; AL =8 alternatives { alternative #32 to alternative #35}; alternatives AL =16 are { alternative #36 to alternative #40}.

Example 14

Embodiment 14 illustrates a block diagram of the structure in a first node, as shown in fig. 14. In fig. 14, a first node 1401 comprises a first receiver 1401 and a first transceiver 1402.

A first receiver 1401 that receives target information;

a first transceiver 1402 that monitors first signaling among K1 sets of alternative resources, each of the K1 sets of alternative resources comprising a positive integer number of resource groups;

in embodiment 14, a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used to identify the first resource pool, a resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an embodiment, the second alternative resource set is one alternative resource set out of the K1 alternative resource sets and outside the first alternative resource set; the first alternative resource set and the second alternative resource set both occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

As an embodiment, the meaning that the first index is used to determine the time-frequency positions of the positive integer number of resource groups occupied by the first candidate resource set in the above sentence includes: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, wherein M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

As an embodiment, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to the detection order that the candidate resource pool is first and the aggregation level is second.

As an embodiment, the first transceiver 1402 receives a first signal in a third set of time-frequency resources; the first signaling is used to indicate the third set of time-frequency resources.

As an embodiment, the first transceiver 1402 transmits a first signal in a third set of time-frequency resources; the first signaling is used to indicate the third set of time-frequency resources.

For one embodiment, the first receiver 1401 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the first transceiver 1402 comprises at least the first 6 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 15

Embodiment 15 illustrates a block diagram of the structure in a second node, as shown in fig. 15. In fig. 15, the second node 1500 comprises a first transmitter 1501 and a second transceiver 1502.

A first transmitter 1501 which transmits target information;

a second transceiver 1502, configured to send a first signaling in one of K1 candidate resource sets, where each of the K1 candidate resource sets includes a positive integer number of resource groups;

in embodiment 15, a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used to identify the first resource pool, a resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; and K1 is a positive integer greater than 1.

As an embodiment, the second alternative resource set is one of the K1 alternative resource sets and is outside the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second candidate resource set in the K1 candidate resource sets is a second index, and the target information is used to determine whether the first index and the second index are consecutive.

As an embodiment, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 candidate resource sets of a first type, the K3 candidate resource sets of the first type all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 candidate resource sets of the first type, K3 is a positive integer greater than 1, K3 indexes corresponding to the K3 candidate resource sets of the first type are consecutive, and at least one of the K3 candidate resource sets of the first type including two corresponding consecutive indexes is mapped to a given resource pool.

As an embodiment, a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to a detection order that the candidate resource pool is first and the aggregation level is second.

For one embodiment, the second transceiver 1502 transmits a first signal; the first signaling is used to indicate the third set of time-frequency resources.

For one embodiment, the second transceiver 1502 receives a first signal; the first signaling is used to indicate the third set of time-frequency resources.

For one embodiment, the first transmitter 1501 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second transceiver 1502 includes at least the first 6 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by 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 and second node 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, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an over-the-air base station, an RSU, and other wireless communication devices.

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

Claims

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

a first receiver receiving target information;

a first transceiver, configured to monitor a first signaling in K1 candidate resource sets, where each of the K1 candidate resource sets includes a positive integer number of resource groups;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1; the second alternative resource set is one of the K1 alternative resource sets except the first alternative resource set; the first alternative resource set and the second alternative resource set both occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second candidate resource set in the K1 candidate resource sets is a second index, and the target information is used to determine whether the first index and the second index are consecutive; when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 candidate resource sets of a first type, the K2 candidate resource sets of the first type all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K2 candidate resource sets of the first type, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 candidate resource sets of the first type are consecutive, and the K2 candidate resource sets of the first type are sequentially mapped into M1 candidate resource pools, the M1 candidate resource pools include the first resource pool, the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple greater than 1 of the M1; or, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 candidate resource sets of a first class, the K3 candidate resource sets of the first class all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 candidate resource sets of the first class, K3 is a positive integer greater than 1, K3 indexes corresponding to the K3 candidate resource sets of the first class are consecutive, and a first candidate resource set of the K3 candidate resource sets including at least two corresponding consecutive indexes is mapped to a given resource pool; the K1 alternative resource sets are respectively K1 PDCCH alternatives; the first resource pool is a CORESET or a search space; the M1 alternative resource pools are M1 CORESET respectively, or the M1 alternative resource pools are M1 search spaces respectively.

2. The first node of claim 1, wherein the meaning of the first index used to determine the time-frequency locations of a positive integer number of resource groups occupied by the first alternative resource set comprises: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

3. The first node according to claim 2, wherein a positive integer number of resource groups occupied by any one of the K1 candidate resource sets belong to the Q2 resource groups included in the M1 candidate resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to a detection order that the candidate resource pool is first and the aggregation level is second.

4. The first node according to claim 1 or 2, wherein the first transceiver operates a first signal in a third set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the third set of time-frequency resources.

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

a first transmitter for transmitting the target information;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1; the second alternative resource set is one of the K1 alternative resource sets except the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, the target information being used to determine whether the first index and the second index are consecutive; when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 candidate resource sets of a first type, the K2 candidate resource sets of the first type all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K2 candidate resource sets of the first type, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 candidate resource sets of the first type are consecutive, and the K2 candidate resource sets of the first type are sequentially mapped into M1 candidate resource pools, the M1 candidate resource pools include the first resource pool, the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple greater than 1 of the M1; or, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 first-class candidate resource sets, the K3 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 first-class candidate resource sets, the K3 is a positive integer greater than 1, the K3 indexes corresponding to the K3 first-class candidate resource sets are consecutive, and at least one first-class candidate resource set including two corresponding consecutive indexes among the K3 first-class candidate resource sets is mapped into a given resource pool; the K1 alternative resource sets are respectively K1 PDCCH alternatives; the first resource pool is a CORESET or a search space; the M1 alternative resource pools are M1 CORESET respectively, or the M1 alternative resource pools are M1 search spaces respectively.

6. The second node according to claim 5, wherein the meaning of the first index used to determine the time-frequency position of the positive integer number of resource groups occupied by the first alternative resource set comprises: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, wherein M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

7. The second node according to claim 6, wherein a positive integer number of resource groups occupied by any one of the K1 candidate resource sets belong to the Q2 resource groups included in the M1 candidate resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first sequence refers to that a receiver of the target information detects the K1 alternative resource sets according to a detection sequence with a first aggregation level and a second alternative resource pool; the second order is that a receiver of the target information detects the K1 alternative resource sets according to a detection order that the alternative resource pool is first and the aggregation level is second.

8. The second node according to claim 5 or 6, characterized in that the second transceiver transmits a first signal; the first signaling is used to indicate a third set of time-frequency resources.

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

receiving target information;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, a resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1;

the second alternative resource set is one alternative resource set out of the K1 alternative resource sets and out of the first alternative resource set; the first alternative resource set and the second alternative resource set occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, the target information being used to determine whether the first index and the second index are consecutive; when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 first-class candidate resource sets, the K2 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource sets and the second candidate resource sets both belong to the K2 first-class candidate resource sets, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 first-class candidate resource sets are consecutive, and the K2 first-class candidate resource sets are sequentially mapped to M1 candidate resource pools, where the M1 candidate resource pools include the first resource pool; the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple greater than 1 of the M1; or, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 candidate resource sets of a first class, the K3 candidate resource sets of the first class all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 candidate resource sets of the first class, K3 is a positive integer greater than 1, K3 indexes corresponding to the K3 candidate resource sets of the first class are consecutive, and a first candidate resource set of the K3 candidate resource sets including at least two corresponding consecutive indexes is mapped to a given resource pool; the K1 alternative resource sets are respectively K1 PDCCH alternatives; the first resource pool is a CORESET or a search space; the M1 alternative resource pools are M1 CORESET respectively, or the M1 alternative resource pools are M1 search spaces respectively.

10. The method in a first node according to claim 9, wherein the first index is used to determine the meaning of the time-frequency locations of a positive integer number of resource groups occupied by the first set of alternative resources comprises: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, wherein M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

11. The method in the first node according to claim 10, wherein a positive integer number of resource groups occupied by any one of the K1 candidate resource sets belong to the Q2 resource groups included in the M1 candidate resource pools; the target information is used to indicate whether the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that the first node detects the K1 alternative resource sets according to a detection order that the aggregation level is first and the alternative resource pool is second; the second order refers to that the first node detects the K1 candidate resource sets according to a detection order that the candidate resource pool is first and the aggregation level is second.

12. A method in a first node according to claim 9 or 10, comprising:

receiving a first signal; alternatively, the first and second electrodes may be,

transmitting a first signal;

wherein the first signaling is used to indicate a third set of time-frequency resources.

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

sending target information;

a first alternative resource set is one of the K1 alternative resource sets, a resource group occupied by the first alternative resource set belongs to a first resource pool, a first identifier is used for identifying the first resource pool, the resource group occupied by one alternative resource set in the K1 alternative resource sets belongs to a resource pool other than the first resource pool, and the first identifier is a non-negative integer; the K1 candidate resource sets are sequentially indexed, an index of the first candidate resource set in the K1 candidate resource sets is a first index, the first identifier and the target information are both used for determining the first index, and the first index is used for determining time-frequency positions of a positive integer number of resource groups occupied by the first candidate resource set; k1 is a positive integer greater than 1; the second alternative resource set is one of the K1 alternative resource sets except the first alternative resource set; the first alternative resource set and the second alternative resource set both occupy the same number of resource groups, and the resource groups occupied by the second alternative resource set belong to the first resource pool; the index of the second set of candidate resources among the K1 sets of candidate resources is a second index, the target information being used to determine whether the first index and the second index are consecutive; when the target information indicates that the first index and the second index are non-consecutive, the K1 candidate resource sets include K2 first-class candidate resource sets, the K2 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource sets and the second candidate resource sets both belong to the K2 first-class candidate resource sets, the K2 is a positive integer greater than 1, the K2 indexes corresponding to the K2 first-class candidate resource sets are consecutive, and the K2 first-class candidate resource sets are sequentially mapped into M1 candidate resource pools, the M1 candidate resource pools include the first resource pool, the M1 is a positive integer greater than 1, the M1 is equal to the K2, or the K2 is a positive integer multiple greater than 1 of the M1; or, when the target information indicates that the first index and the second index are consecutive, the K1 candidate resource sets include K3 first-class candidate resource sets, the K3 first-class candidate resource sets all occupy the same number of resource groups, the first candidate resource set and the second candidate resource set both belong to the K3 first-class candidate resource sets, the K3 is a positive integer greater than 1, the K3 indexes corresponding to the K3 first-class candidate resource sets are consecutive, and at least one first-class candidate resource set including two corresponding consecutive indexes among the K3 first-class candidate resource sets is mapped into a given resource pool; the K1 alternative resource sets are respectively K1 PDCCH alternatives; the first resource pool is a CORESET or a search space; the M1 alternative resource pools are M1 CORESET respectively, or the M1 alternative resource pools are M1 search spaces respectively.

14. The method in the second node according to claim 13, wherein the first index is used to determine the meaning of the time-frequency position of a positive integer number of resource groups occupied by the first set of alternative resources comprises: the first alternative resource set occupies Q1 resource groups, wherein Q1 is a positive integer, the alternative resource pool group comprises M1 alternative resource pools, M1 is a positive integer larger than 1, the M1 alternative resource pools comprise Q2 resource groups in total, and Q2 is a positive integer larger than Q1; the first index is used to determine the locations of the Q1 resource groups from the Q2 resource groups; the M1 alternative resource pools include the first resource pool.

15. The method in the second node according to claim 14, wherein a positive integer number of resource groups occupied by any one of the K1 alternative resource sets belong to the Q2 resource groups included in the M1 alternative resource pools; the target information is used for indicating that the detection order of the K1 alternative resource sets is a first order or a second order; the first order refers to that a receiver of the target information detects the K1 alternative resource sets according to a detection order that an aggregation level is first and an alternative resource pool is second; the second order refers to that the receiver of the target information detects the K1 candidate resource sets according to the detection order that the candidate resource pool is first and the aggregation level is second.

16. A method in a second node according to claim 13 or 14, comprising:

transmitting a first signal; alternatively, the first and second electrodes may be,

receiving a first signal;