CN113497686B

CN113497686B - Method and apparatus in a node for wireless communication

Info

Publication number: CN113497686B
Application number: CN202010201009.4A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2024-03-26
Anticipated expiration: 2040-03-20
Also published as: CN113497686A

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node firstly receives the first information and the second information, and then monitors the first signaling in the first time-frequency resource pool; the first information is used for determining a target transmission mode; the first signaling occupies a plurality of resource unit groups in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, and the first node assumes that one of the K2 resource unit groups employs the same precoding; the second information is used to determine the number of resource unit groups included in the resource unit group; the number of resource unit groups comprised by the resource unit group together with the target transmission means is used to determine candidate parameters associated with the resource unit group. The method and the device ensure the flexibility and the robustness of the control signaling under the multi-transmission receiving point by designing the mapping relation of the REG bundles.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present invention relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method of PDCCH (Physical Downl ink Control Channel ) under Release 17 in wireless communication.

Background

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. In conventional LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) systems, MIMO (Multi Input Multi Output, multiple input multiple output) technology is introduced for transmission performance to improve throughput and transmission rate of the system. In 5G and NR systems, a Beamforming (Beamforming) scheme is further proposed to further enhance the transmission efficiency.

In the evolution of the 5G and subsequent Release 17 versions, a Multi-Beam (Multi-Beam) scheme will continue to evolve and enhance, and one important aspect is how to enhance the transmission performance of the PDCCH under Multi-beams, especially under the scenario of Multi-Beam usage in Multi-TRP (Multi-Transmitter Receiver Points, multiple transmission and reception points).

Disclosure of Invention

In a Multi-TRP combined Multi-beam scenario, one solution to enhance the performance of PDCCH is to send PDCCH carrying the same information on beams corresponding to multiple TRPs at the same time, so as to achieve the effect of diversity gain. In the conventional PDCCH blind detection of Release16, by introducing the concept of REG (Resource Element Group ) Bundle, multiple REGs in one REG Bundle are assumed to adopt the same precoding, so that the complexity of terminal side channel estimation is simplified, and the performance of channel estimation is improved. In the multi-TRP scenario, the definition of REG Bundle requires a new definition for the configuration of multi-TRP (Transmitter Receiver Points, transmission reception point).

In view of the above problems, the present application provides a solution. It should be noted that, in the above description of the problem, the Multi-TRP scene is merely an example of one application scenario provided in the present application; the present application is also applicable to, for example, a Multi-base station scenario, achieving a technical effect similar to that in a Multi-TRP scenario. Similarly, the application is also applicable to scenarios such as carrier aggregation (Carrier Aggregation), or internet of things (V2X) communication, to achieve similar technical effects. Furthermore, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost.

In view of the above problems, the present application provides a solution. It should be noted that, in the case of no conflict, the embodiments in the first node and the features in the embodiments of the present application may be applied to the second node, and vice versa. Further, embodiments of the present application and features of embodiments may be arbitrarily combined with each other without conflict.

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

receiving first information and second information;

monitoring a first signaling in the first time-frequency resource pool;

Wherein the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

As an embodiment, one technical effect of the above method is: the K2 resource element groups are K2 REG bundles, respectively, and the M1 candidate parameters are M1 TCI-states (TCI states), respectively; in Release-15, the arrangement mode of REGs in the time-frequency resource is according to the second fixed arrangement of the time domain and the first frequency domain, and a plurality of continuous REGs form a REG bundle; after introducing the multiple TRPs, as the multiple TRPs provide multiple transmission modes of the PDCCHs, and further PDCCHs with different transmission modes are adopted, the mapping of the corresponding REG bundles and the mapping of the corresponding REG bundles to the TCI-State are required to be correspondingly adjusted, so that the gain of channel estimation brought by the REG bundles is maximized.

According to one aspect of the present application, there is provided:

receiving third information;

wherein the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters.

According to one aspect of the present application, there is provided:

receiving fourth information;

wherein the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1.

According to one aspect of the application, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

As an embodiment, the technical advantage of the above method is: when the PDCCH adopts a transmission mode of FDM (Frequency Division Multiplexing ) and K3 is not greater than N1, it means that a resource unit group included in one resource unit group can be limited in a frequency domain resource corresponding to one RB (Resource Block) included in the first time-frequency resource pool, and then a mode of time domain first frequency domain second is adopted when the resource unit group is mapped, so as to ensure forward compatibility.

According to one aspect of the application, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

As an embodiment, the technical advantage of the above method is: when the PDCCH adopts a TDM (Time Divi sion Multiplexing) transmission mode and K3 is not more than N1, the first time-frequency resource pool is split into a plurality of TDM resource sub-pools, and the plurality of TDM resource sub-pools respectively correspond to a plurality of different TCI-State, and under the scene, the mapping of REG accords with a mode of a time domain first frequency domain second in the resource sub-pools, and the mode simultaneously ensures the gain of channel estimation brought by REG bundles and the time domain diversity gain brought by TDM.

According to one aspect of the application, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

As an embodiment, the technical advantage of the above method is: when K3 is greater than N1, it indicates that the resource unit groups included in one resource unit group cannot be all located in the frequency domain resource corresponding to one RB (Resource Block) included in the first time-frequency resource pool, and further, when the resource unit groups are mapped, a second mode of the first time domain is adopted to ensure the gain of channel estimation caused by REG bundles.

According to one aspect of the present application, there is provided:

receiving the first signal in the second set of time-frequency resources;

wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

According to one aspect of the present application, there is provided:

transmitting the first signal in the second set of time-frequency resources;

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

transmitting first information and second information;

transmitting a first signaling in the first time-frequency resource pool;

wherein the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the receiver of the first information includes a first node that assumes that all resource element groups included in the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

According to one aspect of the present application, there is provided:

transmitting third information;

According to one aspect of the present application, there is provided:

transmitting fourth information;

According to one aspect of the present application, there is provided:

transmitting the first signal in the second set of time-frequency resources;

According to one aspect of the present application, there is provided:

receiving the first signal in the second set of time-frequency resources;

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

a first receiver that receives first information and second information;

a first transceiver monitoring a first signaling in the first time-frequency resource pool;

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

a first transmitter that transmits first information and second information;

a second transceiver transmitting first signaling in the first time-frequency resource pool;

As an example, compared to the conventional solution, the present application has the following advantages:

determining a mapping relation from REG Bundle to TCI (Transmiss ion Configuration Indication, transmission configuration instruction) through a transmission mode adopted by REG Bundle Size and PDCCH, and balancing robustness and performance;

and determining the mapping mode of REG in the first time-frequency resource pool through the transmission modes adopted by REG Bundle Size and PDCCH, thereby maximizing the performance gain of joint channel estimation brought by REG bundles.

Drawings

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

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;

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

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

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

Fig. 5 shows a flow chart of a first signaling according to an embodiment of the present application;

FIG. 6 illustrates a flow chart of a first signal according to one embodiment of the present application;

fig. 7 shows a schematic diagram of a first time-frequency resource pool according to an embodiment of the present application;

fig. 8 shows a schematic diagram of a first time-frequency resource pool according to another embodiment of the present application;

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

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

FIG. 11 illustrates a schematic diagram of a second node according to one embodiment of the present application;

FIG. 12 illustrates a block diagram of a structure for use in a first node according to one embodiment of the present application;

FIG. 13 illustrates a block diagram of a structure for use in a second node according to one embodiment of the present application;

fig. 14 shows a schematic diagram of a resource unit group according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a process 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 first information and second information in step 101; first signaling is monitored in the first time-frequency resource pool in step 102.

In embodiment 1, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

As an embodiment, the first information indicates the target transmission mode.

As an embodiment, the second information indicates the number of resource unit groups included in the first resource unit group.

As an embodiment, the second information indicates K3, where K3 is a positive integer greater than 1, and the number of resource unit groups included in any one of the K2 resource unit groups is equal to K3.

As a sub-embodiment of this embodiment, said K3 is equal to one of 2,3 or 6.

As a sub-embodiment of this embodiment, said K3 is equal to 12 or 24.

As an embodiment, the target transmission mode is an FDM transmission mode.

As an embodiment, the target transmission mode is a TDM transmission mode.

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

As an embodiment, the first information is transmitted in a MAC (Medium Access Control, media access Control) CE (Control Element).

As an embodiment, the second information is transmitted in RRC signaling.

As an embodiment, the second information is transmitted in a MAC CE.

As an embodiment, the RRC signaling carrying the first information includes a PDSCH-Config IE in TS 38.331.

As an embodiment, the RRC signaling carrying the first information includes PUSCH-Config IE in TS 38.331.

As an embodiment, the RRC signaling carrying the first information includes controlResourceSet IE in TS 38.331.

As an embodiment, the RRC signaling carrying the first information includes a SearchSpace IE in TS 38.331.

As an embodiment, the RRC signaling carrying the second information includes precorgranularity in TS 38.331.

As an embodiment, the RRC signaling carrying the second information includes reg-bundling size in TS 38.331.

As an embodiment, the first time-frequency resource pool occupies a positive integer number of REs (Resource Elements, resource particles).

As an embodiment, the first time-frequency resource pool is a CORESET (Control Resource Set, control resource group).

As an embodiment, the first time-frequency resource pool is associated with a CORESET Identification (ID).

As an embodiment, the first time-frequency resource Pool is a CORESET Pool (Pool), and the CORESET Pool includes M1 CORESETs.

As an embodiment, the first time-frequency resource Pool is associated with a CORESET Pool Identification (ID).

As an embodiment, the first time-frequency resource pool is a Search Space (Search Space).

As an embodiment, the first time-frequency resource pool is associated to a search space Identification (ID).

As an embodiment, the first time-frequency resource pool is a search space pool, and the search space pool includes M1 search spaces.

As one embodiment, the first time-frequency resource pool is associated with a search space pool identity.

As an embodiment, the first time-frequency resource pool includes M1 CORESETs.

As an embodiment, the first time-frequency resource pool includes M1 search spaces.

As one embodiment, the first node supports receiving DCI (Downlink Control Information ) on multiple TRPs.

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

As one embodiment, the first node supports combining PDCCHs detected on multiple TRPs.

As one embodiment, the first node supports repeated (Repetition) transmission of multiple PDCCHs that receive from multiple TRPs and carry one DCI.

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

As an embodiment, the monitoring the first signaling comprises: the first node receives the first signaling.

As an embodiment, the monitoring the first signaling comprises: the first node decodes the first signaling.

As an embodiment, the monitoring the first signaling comprises: the first node decodes the first signaling by coherent detection.

As an embodiment, the monitoring the first signaling comprises: the first node decodes the first signaling through energy detection.

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

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

As one embodiment, the K1 resource element groups are K1 REGs, respectively.

As an embodiment, any one of the K1 resource unit groups occupies 12 REs.

As an embodiment, any one of the K1 resource element groups occupies one multicarrier symbol in the time domain and occupies 12 consecutive subcarriers in the frequency domain.

As an embodiment, any one of the K1 resource element groups occupies a plurality of consecutive multicarrier symbols in the time domain and occupies a plurality of consecutive subcarriers in the frequency domain.

As an embodiment, the resource unit in the present application occupies 1 continuous multicarrier symbol in the time domain and occupies 1 subcarrier in the frequency domain.

As an embodiment, any one of the K1 resource unit groups is associated to one of the M1 candidate parameters.

As an embodiment, the first signaling is PDCCH.

As an embodiment, the first signaling is DCI.

As an embodiment, the first signaling is a downlink Grant (DL Grant).

As an embodiment, the first signaling is an uplink Grant (UL Grant).

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

As an embodiment, the meaning of the phrase that the K1 resource unit groups are divided into K2 resource unit groups includes: any one of the K1 resource unit groups belongs to one of the K2 resource unit groups.

As one example, the K2 resource element groups are K2 REG bundles (bundles), respectively.

As an embodiment, all resource unit groups included in any one of the K2 resource unit groups are associated to one candidate parameter of the M1 candidate parameters.

As an embodiment, all resource units comprised by any one of the K2 resource unit groups are associated to one of the M1 candidate parameters.

As an embodiment, the first node assumes that all resource element groups included in any one of the K2 resource element groups are precoded identically.

As an embodiment, the first node assumes that all resource units comprised by any one of the K2 resource unit groups are precoded identically.

As an embodiment, the M1 is equal to 2, and the M1 candidate parameters include a first candidate parameter and a second candidate parameter.

As one embodiment, the first time-frequency resource pool is configured to T1 TRP, and T1 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, the T1 TRP shares the first pool of time frequency resources.

As a sub-embodiment of this embodiment, said T1 is equal to 2.

As a sub-embodiment of this embodiment, said T1 is equal to said M1, said T1 TRP being associated to said M1 candidate parameters, respectively.

As an embodiment, the first time-frequency resource pool is associated to T1 CORESET pools, the T1 being a positive integer greater than 1.

As a sub-embodiment of this embodiment, the T1 CORESET pools are associated to T1 TRP, respectively.

As a sub-embodiment of this embodiment, any one of the T1 CORESET pools comprises at least one CORESET.

As a sub-embodiment of this embodiment, said T1 is equal to 2.

As a sub-embodiment of this embodiment, said T1 is equal to said M1, and said T1 CORESET pools are associated to said M1 candidate parameters, respectively.

As one embodiment, the first pool of time-frequency resources is associated to T1 sets of search spaces, the T1 being a positive integer greater than 1.

As a sub-embodiment of this embodiment, the T1 search space sets are associated to T1 TRP, respectively.

As a sub-embodiment of this embodiment, any one of the T1 sets of search spaces includes at least one search space.

As a sub-embodiment of this embodiment, said T1 is equal to 2.

As a sub-embodiment of this embodiment, said T1 is equal to said M1, and said T1 sets of search spaces are associated to said M1 candidate parameters, respectively.

As an embodiment, the number of resource unit groups comprised by the first resource unit group is equal to K3, the K3 being a positive integer greater than 1, the value of K3 being used together with the target transmission means for determining to which one of the M1 candidate parameters the first resource unit group is associated.

As an embodiment, the number of resource unit groups included in any one of the K2 resource unit groups is equal to K3, where K3 is a positive integer greater than 1, and the value of K3 is used together with the target transmission scheme to determine to which one of the M1 candidate parameters any one of the K2 resource unit groups is associated.

As an embodiment, the number of resource unit groups included in any one of the K2 resource unit groups is equal to K3, where K3 is a positive integer greater than 1, and the value of K3 and the target transmission mode are used together to determine a mapping mode of the K1 resource unit groups in the first time-frequency resource pool.

As an embodiment, the M1 candidate parameters respectively correspond to M1 beamforming vectors.

As an embodiment, the M1 candidate parameters respectively correspond to M1 received beamforming vectors.

As an embodiment, the M1 candidate parameters respectively correspond to M1 transmit beamforming vectors.

As one embodiment, the M1 candidate parameters are M1 TCI-states, respectively.

As an embodiment, the M1 candidate parameters correspond to M1 TCI-stateids, respectively.

As an embodiment, the M1 candidate parameters respectively correspond to M1 candidate signals.

As a sub-embodiment of this embodiment, a given candidate signal is any one of the M1 candidate signals, the given candidate signal includes CSI-RS (Channel-State Informat ion Reference Signals, channel state information reference signal), or the given candidate signal includes SSB (SS/PBCH Block, synchronization signal/physical broadcast Channel Block).

As an embodiment, the first group of resource elements is associated to a first candidate parameter of the M1 candidate parameters, the first candidate parameter corresponding to a first candidate reference signal for which measurements are used for monitoring for the first signaling on resource elements comprised by the first group of resource elements.

As an embodiment, a given resource element group is any one of the K2 resource element groups, the given resource element group being associated to a given candidate parameter of the M1 candidate parameters, the given candidate parameter corresponding to a given candidate reference signal for which measurements are used for monitoring for the first signaling on resource elements comprised by the given resource element group.

As an embodiment, the multi-carrier symbol described in this application is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the multi-carrier symbol described in this application is an SC-FDMA (Single-carrier frequency division multiplexing access) symbol.

As an embodiment, the multi-carrier symbol described in this application is an FBMC (Filter Bank Multi Carrier, filter bank multi-carrier) symbol.

As an embodiment, the multi-carrier symbol described in this application is an OFDM symbol containing a CP (Cyclic Prefix).

As one embodiment, the multicarrier symbol described in this application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing, discrete fourier transform spread orthogonal frequency division multiplexing) symbol containing a CP.

As an embodiment, the X2 resource element groups occupied by the first signaling constitute one PDCCH Candidate (Candidate).

As one example, the X2 is equal to one of 6,12,24,48,96.

As an embodiment, the X2 resource element groups constitute P CCEs (Control Channel Element, control channel elements), the P being equal to one of 1,2,4,8 or 16.

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 of a 5g nr, LTE (Long-Term evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term evolution) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System ) 200 as some other suitable terminology. EPS200 may include one or more UEs (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 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 gNB203 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 (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 through an S1/NG interface. EPC/5G-CN 210 includes MME (Mobil ity Management Entity )/AMF (Authent icat ion Management Field, authentication management domain)/UPF (User Plane Funct ion ) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which 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. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As an embodiment, the UE201 is a terminal supporting Massive MIMO (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 the present application.

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

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

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

As a sub-embodiment of this embodiment, the plurality of TRPs are connected by an X2 interface therebetween.

As a sub-embodiment of this embodiment, the plurality of TRPs are connected by Ideal Backhaul.

As a sub-embodiment of this embodiment, a cooperation (Delay) Delay between the plurality of TRPs does not have an impact on 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 an embodiment, the gNB203 supports multi-beam transmission.

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

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

As one embodiment, the wireless 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 according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows 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 PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) 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 the data packets, and the PDCP sublayer 304 also provides handoff support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower 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 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and 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 data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first communication node apparatus 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., remote UE, server, etc.).

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.

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

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

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

As an embodiment, the first information is generated in the MAC352 or the MAC302.

As an embodiment, the first information is generated in the RRC306.

As an embodiment, the second information is generated in the MAC352 or the MAC302.

As an embodiment, the second information is generated in the RRC306.

As an embodiment, the third information is generated in the MAC352 or the MAC302.

As an embodiment, the third information is generated in the RRC306.

As an embodiment, the fourth information is generated in the MAC352 or the MAC302.

As an embodiment, the fourth information is generated in the RRC306.

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

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

As an embodiment, the first signal is generated in the PHY301 or the PHY351.

As an embodiment, the first signal is generated at the MAC352 or the MAC302.

As an embodiment, the first signal is generated in 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 communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

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

In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication 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., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters 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 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, 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 a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

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

In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication 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 transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the 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, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. 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 it to an antenna 452.

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: receiving first information and second information; and monitoring a first signaling in the first time-frequency resource pool; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

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, produce acts comprising: receiving first information and second information; and monitoring a first signaling in the first time-frequency resource pool; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

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: transmitting first information and second information; and transmitting a first signaling in the first time-frequency resource pool; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the receiver of the first information includes a first node that assumes that all resource element groups included in the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

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, produce acts comprising: transmitting first information and second information; and transmitting a first signaling in the first time-frequency resource pool; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the receiver of the first information includes a first node that assumes that all resource element groups included in the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

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

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

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

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

As an embodiment, the second communication device 410 is a base station.

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

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

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

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to monitor a first signaling in a first pool of time-frequency resources; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controllers/processors 475 are used to transmit first signaling in a first pool of time-frequency resources.

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are configured to receive a first signal in a second set of time-frequency resources; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controllers/processors 475 are used to transmit the first signal in the second set of time-frequency resources.

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

Example 5

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

For the followingFirst node U1Receiving the first information and the second information in step S10; receiving third information in step S11; receiving fourth information in step S12; monitoring a first signaling in the first time-frequency resource pool in step S13; the first signal is received in a second set of time-frequency resources in step S14.

For the followingSecond node N2Transmitting the first information and the second information in step S20Extinguishing; transmitting third information in step S21; transmitting fourth information in step S22; transmitting a first signaling in the first time-frequency resource pool in step S23; the first signal is transmitted in a second set of time-frequency resources in step S24.

In embodiment 5, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node U1 assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission mode are used together to determine the first candidate parameter from the M1 candidate parameters; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

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

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

As an embodiment, it is RRC signaling that carries the third information.

As an embodiment, the RRC signaling carrying the third information includes controlResourceSet IE.

As an embodiment, the RRC signaling carrying the third information includes a SearchSpace IE.

As an embodiment, the RRC signaling carrying the third information includes controlResourceSetPool IE.

As an embodiment, the RRC signaling carrying the third information includes SearchSpaceSet IE.

As an embodiment, the third information is used to indicate frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the third information is used to indicate time domain resources occupied by the first time-frequency resource pool.

As an embodiment, the third information is used to indicate that the first time-frequency resource pool is associated to the M1 candidate parameters.

As an embodiment, the RRC signaling carrying the third information includes TCI-State.

As an embodiment, the RRC signaling carrying the third information includes TCI-StateId.

As an embodiment, the RRC signaling carrying the third information includes TCI-statepdcch-ToAddList.

As an embodiment, the RRC signaling carrying the third information includes TCI-statepdcch-ToReleaseList.

As an embodiment, the determining the meaning of the M1 candidate parameters by using the target transmission method according to the above phrase includes: the target transmission mode is a TDM mode, the M1 candidate parameters belong to a first candidate parameter set, and the first candidate parameter set comprises M1 first type candidate parameters; the target transmission mode is an FDM mode, the M1 candidate parameters belong to a second candidate parameter set, and the second candidate parameter set comprises M1 second type candidate parameters; any one of the M1 first type candidate parameters is different from any one of the M1 second type candidate parameters.

As an embodiment, the determining the meaning of the M1 candidate parameters by using the target transmission method according to the above phrase includes: the target transmission mode is a TDM mode, the M1 candidate parameters belong to a first candidate parameter set, and the first candidate parameter set comprises M1 first type candidate parameters; the target transmission mode is an FDM mode, the M1 candidate parameters belong to a second candidate parameter set, and the second candidate parameter set comprises M1 second type candidate parameters; at least one first type candidate parameter in the M1 first type candidate parameters is different from any second type candidate parameter in the M1 second type candidate parameters.

As an embodiment, the determining the meaning of the M1 candidate parameters by using the target transmission method according to the above phrase includes: the target transmission mode is one of W1 transmission modes, W1 is a positive integer greater than 1, and the W1 transmission modes are respectively associated with W1 candidate parameter sets; and when the target transmission mode is a given transmission mode in the W1 transmission modes, the M1 candidate parameters belong to a candidate parameter set associated with the given transmission mode in the W1 candidate parameter sets.

As a sub-embodiment of this embodiment, at least one candidate parameter set out of the W1 candidate parameter sets includes a plurality of candidate parameters.

As a sub-embodiment of this embodiment, any one of the W1 candidate parameter sets includes a plurality of candidate parameters.

As a sub-embodiment of this embodiment, the W1 transmission modes include a TDM transmission mode and an FDM transmission mode.

As a sub-embodiment of this embodiment, the W1 transmission scheme includes an SDM transmission scheme.

As a sub-embodiment of this embodiment, MAC CE is used to indicate which of the W1 transmission modes the target transmission mode is.

As a sub-embodiment of this embodiment, RRC signaling is used to indicate which of the W1 transmission modes the target transmission mode is.

As an embodiment, the RRC signaling carrying the fourth information includes a PDSCH-Config IE.

As an embodiment, the RRC signaling carrying the fourth information includes a PUSCH-Config IE.

As an embodiment, the fourth information is transmitted in RRC signaling.

As an embodiment, the fourth information is transmitted in a MAC CE.

As an embodiment, the Q1 transmission modes include TDM transmission modes.

As an embodiment, the Q1 transmission modes include an FDM transmission mode.

As an embodiment, the Q1 transmission modes include a transmission mode of SDM (Space Division Multiplexing ).

As an embodiment, the target transmission mode is the same as the first transmission mode.

As an embodiment, the first transmission mode is one of the Q1 candidate transmission modes.

As an embodiment, the target transmission mode is a TDM transmission mode, and the first transmission mode is a TDM transmission mode.

As an embodiment, the target transmission mode is an FDM transmission mode, and the first transmission mode is one of a TDM transmission mode or an FDM transmission mode.

As an embodiment, the target transmission mode is an SDM transmission mode, and the first transmission mode is one of a TDM transmission mode, an FDM transmission mode, or an SDM transmission mode.

As an embodiment, the first signaling is used to schedule the first signal.

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

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

As one embodiment, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

As one embodiment, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

As one embodiment, the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups includes K3 resource element groups, and K3 is a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

Example 6

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

For the followingFirst node U3Receiving the first information and the second information in step S30; receiving third information in step S31; receiving fourth information in step S32; monitoring a first signaling in the first time-frequency resource pool in step S33; the first signal is transmitted in the second set of time-frequency resources in step S34.

For the followingSecond node N4Transmitting the first information and the second information in step S40; transmitting third information in step S41; transmitting fourth information in step S42; transmitting a first signaling in the first time-frequency resource pool in step S43; the first signal is received in a second set of time-frequency resources in step S44.

In embodiment 6, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node U3 assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission mode are used together to determine the first candidate parameter from the M1 candidate parameters; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

As an embodiment, the first signaling is an uplink Grant (UL Grant), and the physical layer channel carrying the first signal includes PUSCH (Physical Uplink Shared Channel ).

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

Example 7

Embodiment 7 illustrates a schematic diagram of a first time-frequency resource pool according to the present application; as shown in fig. 7. In fig. 7, the first time-frequency resource pool occupies N1 multi-carrier symbols in the time domain, the target transmission mode is a frequency division multiplexing mode, and the K3 is not greater than the N1. The small rectangular boxes in the figure represent one resource unit group in the K1 resource unit groups, the marks in the small rectangular boxes represent indexes of the corresponding resource unit groups in the K1 resource unit groups, and the K1 resource unit groups are indexed according to the sequence of time domain first frequency domain second frequency domain; the thick dashed box in the figure represents the first time-frequency resource pool.

As an embodiment, the K1 resource unit groups are indexed in the first time-frequency resource pool in the order of the time-domain first and the frequency-domain second.

As an embodiment, the first time-frequency resource pool includes a first time-frequency resource sub-pool and a second time-frequency resource sub-pool, and the first time-frequency resource sub-pool and the second time-frequency resource sub-pool both include a positive integer number of resource unit groups greater than 1.

As a sub-embodiment of this embodiment, the first time-frequency resource sub-pool comprises half of the K1 resource unit groups, and the second time-frequency resource sub-pool comprises the other half of the K1 resource unit groups.

As a sub-embodiment of this embodiment, the M1 is equal to 2, the M1 candidate parameters are a first candidate parameter to which the set of resource elements comprised by the first time-frequency resource sub-pool is associated and a second candidate parameter to which the set of resource elements comprised by the second time-frequency resource sub-pool is associated.

As a sub-embodiment of this embodiment, the first time-frequency resource sub-pool and the second time-frequency resource sub-pool are FDM.

As a sub-embodiment of this embodiment, the first time-frequency resource sub-pool and the second time-frequency resource sub-pool both occupy the N1 multicarrier symbols.

As a sub-embodiment of this embodiment, W equals 0.5 x k1; the resource unit groups included in the first time-frequency resource sub-pool are sequentially indexed into resource unit groups #0 to # resource unit groups (W-1); the resource unit groups included in the second time-frequency resource sub-pool are sequentially indexed from resource unit group #W to resource unit group# (K1-1).

As a sub-embodiment of this embodiment, the frequency domain resources occupied by the first time-frequency resource sub-pool and the frequency domain resources occupied by the second time-frequency resource sub-pool are contiguous in the frequency domain.

As a sub-embodiment of this embodiment, the frequency domain resources occupied by the first time-frequency resource sub-pool and the frequency domain resources occupied by the second time-frequency resource sub-pool are discrete in the frequency domain.

As an embodiment, the frequency domain resources occupied by the first time-frequency resource pool are contiguous.

As an embodiment, the frequency domain resources occupied by the first time-frequency resource pool are discrete.

Example 8

Embodiment 8 illustrates another schematic diagram of a first time-frequency resource pool according to the present application; as shown in fig. 8. In fig. 8, the first time-frequency resource pool occupies N1 multi-carrier symbols in the time domain, the target transmission mode is a time division multiplexing mode, and the K3 is not greater than the N1; the small rectangular boxes in the figure represent one resource unit group in the K1 resource unit groups, and the marks in the small rectangular boxes represent indexes of the corresponding resource unit groups in the K1 resource unit groups; the thick dashed box in the figure represents the first time-frequency resource pool.

As shown in the figure, the first time-frequency resource pool includes a first time-frequency resource sub-pool and a second time-frequency resource sub-pool, the first time-frequency resource sub-pool and the second time-frequency resource sub-pool are TDM, the first time-frequency resource sub-pool occupies N2 multi-carrier symbols in the time domain, the second time-frequency resource sub-pool occupies N2 multi-carrier symbols in the time domain, and the product of 2 and N2 is equal to N1; w is shown as equal to the product of 0.5 and K1, where W is a positive integer greater than 1; the small rectangular boxes filled with oblique lines in the figure identify resource unit groups belonging to the first time-frequency resource sub-pool, and the small rectangular boxes filled with oblique squares in the figure identify resource unit groups belonging to the second time-frequency resource sub-pool; the reference numerals in the small rectangular box represent indexes of the corresponding resource unit groups among the K1 resource unit groups.

As a sub-embodiment of this embodiment, the first time-frequency resource sub-pool and the second time-frequency resource sub-pool are TDM.

As a sub-embodiment of this embodiment, the first time-frequency resource sub-pool and the second time-frequency resource sub-pool occupy the same frequency domain resources corresponding to a positive integer number of RBs.

As a sub-embodiment of this embodiment, all resource unit groups included in the first time-frequency resource sub-pool are sequentially indexed in the first time-frequency resource sub-pool in the order of time-domain first and frequency-domain second, and all resource unit groups included in the second time-frequency resource sub-pool are sequentially indexed in the second time-frequency resource sub-pool in the order of time-domain first and frequency-domain second.

Example 9

Embodiment 9 illustrates a schematic diagram of one K1 resource unit group according to the present application; as shown in fig. 9. In fig. 9, the first time-frequency resource pool occupies N1 multi-carrier symbols in the time domain; the small rectangular boxes in the figure represent one resource unit group in the K1 resource unit groups, and the marks in the small rectangular boxes represent indexes of the corresponding resource unit groups in the K1 resource unit groups; when the target transmission mode is an FDM transmission mode and the K3 is greater than the N1, the mapping mode of fig. 9 is adopted.

As shown in the figure, the first time-frequency resource pool comprises a first time-frequency resource sub-pool and a second time-frequency resource sub-pool, and the first time-frequency resource sub-pool and the second time-frequency resource sub-pool are FDM; the first time-frequency resource sub-pool and the second time-frequency resource sub-pool occupy Z RBs; the K1 is equal to the product of 2*Z and N1; the small rectangular boxes filled with oblique lines in the figure identify resource unit groups belonging to the first time-frequency resource sub-pool, and the small rectangular boxes filled with oblique squares in the figure identify resource unit groups belonging to the second time-frequency resource sub-pool; the reference numerals in the small rectangular box represent indexes of the corresponding resource unit groups among the K1 resource unit groups.

As a sub-embodiment of this embodiment, all resource unit groups included in the first time-frequency resource sub-pool are sequentially indexed in the first time-frequency resource sub-pool in the order of the frequency domain first and the time domain second, and all resource unit groups included in the second time-frequency resource sub-pool are sequentially indexed in the second time-frequency resource sub-pool in the order of the frequency domain first and the time domain second.

Example 10

Embodiment 10 illustrates a schematic diagram of another K1 resource unit group according to the present application; as shown in fig. 10. In fig. 10, the first time-frequency resource pool occupies N1 multi-carrier symbols in the time domain; the small rectangular boxes in the figure represent one resource unit group in the K1 resource unit groups, and the marks in the small rectangular boxes represent indexes of the corresponding resource unit groups in the K1 resource unit groups; when the target transmission mode is a TDM transmission mode and the K3 is greater than the N1, the mapping mode of fig. 10 is adopted.

As shown in the figure, the first time-frequency resource pool comprises a first time-frequency resource sub-pool and a second time-frequency resource sub-pool, and the first time-frequency resource sub-pool and the second time-frequency resource sub-pool are TDM; the first time-frequency resource sub-pool and the second time-frequency resource sub-pool occupy Z RBs; the K1 is equal to the product of Z and N1; the small rectangular boxes filled with oblique lines in the figure identify resource unit groups belonging to the first time-frequency resource sub-pool, and the small rectangular boxes filled with oblique squares in the figure identify resource unit groups belonging to the second time-frequency resource sub-pool; the reference numerals in the small rectangular box represent indexes of the corresponding resource unit groups among the K1 resource unit groups.

Example 11

Embodiment 11 illustrates a schematic diagram of a second node according to the present application; as shown in fig. 11. In fig. 11, the second node is associated with M1 TRP; the M1 TRP transmits wireless signals in M1 beamforming vectors shown in the figure, respectively.

As one embodiment, the M1 TRP are associated with M1 candidate parameters, respectively.

As one embodiment, the M1 candidate parameters are associated to M1 CSI-RS resources (resources), respectively.

As one embodiment, the M1 candidate parameters are associated to M1 SSB resources (resources), respectively.

As an embodiment, the M1 candidate parameters are respectively associated to M1 CSI-RS resource sets, and any CSI-RS resource set of the M1 CSI-RS resource sets includes a positive integer number of CSI-RS resources.

As one embodiment, the M1 candidate parameters are respectively associated to M1 SSB resource sets, any SSB resource set of the M1 SSB resource sets including a positive integer number of SSB resources.

As one embodiment, the M1 TRP are associated with M1 TCI-states, respectively.

As one embodiment, the M1 TRP directly interacts through an Ideal Backhaul link (Ideal Backhaul).

As one embodiment, the M1 TRP are associated to M1 CORESET pools, respectively, 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 correspond to M1 resource sub-pools, respectively.

As one embodiment, the M1 TRP are associated to M1 search spaces, respectively.

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

Example 12

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

A first receiver 1201 that receives the first information and the second information;

a first transceiver 1202 monitoring for first signaling in the first time-frequency resource pool;

In embodiment 12, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the first node assuming that all resource element groups included in the first resource element group employ the same precoding, the second information being used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

For one embodiment, the first receiver 1201 receives third information; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters.

For one embodiment, the first receiver 1201 receives fourth information; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1.

For one embodiment, the first transceiver 1202 receives a first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

For one embodiment, the first transceiver 1202 transmits a first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

As an embodiment, the first receiver 1201 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.

As one example, the first transceiver 1202 includes 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 example 4.

Example 13

Embodiment 13 illustrates a block diagram of the structure in a second node, as shown in fig. 13. In fig. 13, a second node 1300 includes a first transmitter 1301 and a second transceiver 1302.

A first transmitter 1301 that transmits first information and second information;

a second transceiver 1302 that transmits first signaling in the first time-frequency resource pool;

In embodiment 13, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource unit groups, and the first signaling occupies positive integer number of resource unit groups greater than 1 in the K1 resource unit groups included in the first time-frequency resource pool; the K1 resource unit groups are divided into K2 resource unit groups, the K2 being a positive integer greater than 1, any one of the K2 resource unit groups including more than 1 resource unit group; a first resource element group is one of the K2 resource element groups, the receiver of the first information includes a first node that assumes that all resource element groups included in the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups included in the first resource element group; the first group of resource units is associated to a first candidate parameter, which is one of M1 candidate parameters; the M1 is a positive integer greater than 1, and the number of resource unit groups included in the first resource unit group and the target transmission scheme are used together to determine the first candidate parameter from the M1 candidate parameters.

As an embodiment, the first transmitter 1301 transmits third information; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters.

As an embodiment, the first transmitter 1301 transmits fourth information; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1.

For one embodiment, the second transceiver 1302 transmits the first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

For one embodiment, the second transceiver 1302 receives the first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

As one example, the first transmitter 1301 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 example 4.

As one example, the second transceiver 1302 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 example 4.

Example 14

Embodiment 14 illustrates a schematic diagram of one resource unit group according to the present application; as shown in fig. 14. In fig. 14, the resource unit group shown in the figure is one of the K2 resource unit groups, the resource unit group includes K3 resource unit groups, and indexes corresponding to the K3 resource unit groups are consecutive.

As one embodiment, the resource unit group is any one of the K2 resource unit groups.

As an embodiment, the K3 resource unit groups are TDM.

As an embodiment, the K3 resource element groups are FDM.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on 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 using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. The first node and the second node in the application include, but are not limited to, mobile phones, tablet computers, notebooks, network cards, low power consumption devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, vehicles, RSUs, aircrafts, airplanes, unmanned aerial vehicles, remote control aircrafts and other wireless communication devices. 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 receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

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

a first receiver that receives first information and second information;

a first transceiver monitoring a first signaling in a first time-frequency resource pool;

2. The first node of claim 1, wherein the first receiver receives third information; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters.

3. The first node according to claim 1 or 2, wherein the first receiver receives fourth information; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1.

4. The first node according to any of claims 1 or 2, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

5. A first node according to claim 3, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

6. The first node according to any of claims 1 or 2, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

7. A first node according to claim 3, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

8. The first node according to any of claims 1 or 2, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

9. A first node according to claim 3, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

10. The first node of any of claims 1 or 2, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

11. A first node according to claim 3, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

12. The first node of claim 4, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

13. The first node of claim 5, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

14. The first node of claim 6, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

15. The first node of claim 7, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

16. The first node of claim 8, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

17. The first node of claim 9, wherein the first transceiver operates the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

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

a first transmitter that transmits first information and second information;

a second transceiver transmitting the first signaling in the first time-frequency resource pool;

19. The second node of claim 18, wherein the first transmitter transmits third information; the third information is used to determine the first time-frequency resource pool; the third information is used to indicate the M1 candidate parameters or the target transmission mode is used to determine the M1 candidate parameters.

20. The second node according to claim 18 or 19, wherein the first transmitter transmits fourth information; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; the Q1 is a positive integer greater than 1.

21. The second node according to any of claims 18 or 19, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

22. The second node according to claim 20, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

23. The second node according to any of claims 18 or 19, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

24. The second node according to claim 20, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

25. The second node according to any of claims 18 or 19, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

26. The second node according to claim 20, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

27. The second node according to any of claims 18 or 19, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

28. The second node of claim 20, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

29. The second node of claim 21, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

30. The second node of claim 22, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

31. The second node of claim 23, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

32. The second node of claim 24, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

33. The second node of claim 25, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

34. The second node of claim 26, wherein the second transceiver transmits the first signal in a second set of time-frequency resources; or receiving a first signal, the first signal being used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

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

receiving first information and second information;

monitoring a first signaling in a first time-frequency resource pool;

36. The method in the first node of claim 35, comprising:

receiving third information;

37. A method in a first node according to claim 35 or 36, comprising:

receiving fourth information;

38. The method according to any of claims 35 or 36, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

39. The method in the first node of claim 37, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

40. The method according to any of claims 35 or 36, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

41. The method in the first node of claim 37, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

42. The method according to any of claims 35 or 36, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

43. The method in the first node of claim 37, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

44. The method in a first node according to any of claims 35 or 36, comprising:

operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission;

45. The method in the first node of claim 37, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

46. The method in the first node of claim 38, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

47. The method in the first node of claim 39, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

48. The method in the first node of claim 40, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

49. The method in the first node of claim 41, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

50. The method in a first node according to claim 42, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

51. The method of claim 43, comprising: operating the first signal in a second set of time-frequency resources; the operation is a reception or the operation is a transmission; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

52. A method in a second node for use in wireless communications, comprising:

transmitting first information and second information;

transmitting a first signaling in a first time-frequency resource pool;

53. The method in the second node of claim 52, comprising:

transmitting third information;

54. The method in a second node according to claim 52 or 53, comprising:

transmitting fourth information;

55. The method according to any one of claims 52 or 53, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

56. The method of claim 54, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is frequency division multiplexing, K3 resource element groups included in any one of the K2 resource element groups occupy a frequency domain resource corresponding to the same RB, and a plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are all associated to one candidate parameter of the M1 candidate parameters.

57. The method according to any one of claims 52 or 53, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

58. The method of claim 54, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is not greater than the N1 and the target transmission mode is time division multiplexing, at least two resource unit groups in a plurality of resource unit groups occupying frequency domain resources corresponding to the same RB are respectively associated to two different candidate parameters in the M1 candidate parameters.

59. The method according to any one of claims 52 or 53, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

60. The method of claim 54, wherein the first time-frequency resource pool occupies N1 multicarrier symbols in a time domain, any one of the K2 resource element groups comprising K3 resource element groups, the K3 being a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource unit groups included in any one of the K2 resource unit groups occupy a time domain resource corresponding to the same multicarrier symbol.

61. The method in a second node according to any of claims 52 or 53, comprising:

transmitting the first signal in the second set of time-frequency resources; or receiving a first signal;

62. The method in a second node according to claim 54, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

63. The method in the second node of claim 55, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

64. The method in the second node of claim 56, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

65. The method in the second node of claim 57, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

66. The method in the second node of claim 58, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

67. The method in a second node according to claim 59, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

68. The method in the second node of claim 60, comprising: transmitting the first signal in the second set of time-frequency resources; or receiving a first signal; wherein the first signaling is used to indicate the second set of time-frequency resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.