CN113497686A

CN113497686A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113497686A
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: 2021-10-12
Anticipated expiration: 2040-03-20
Also published as: CN113497686B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node firstly receives first information and second information, and then monitors 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 element groups in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the first node assuming that one of the K2 resource element groups employs the same precoding; the second information is used to determine the number of resource element groups comprised by the resource element group; the number of resource element groups comprised by the resource element group is used together with the target transmission mode to determine a candidate parameter associated with the resource element group. The application ensures the flexibility and robustness of control signaling under multiple transmission receiving points by designing the mapping relation of the REG bundles.

Description

Method and apparatus in a node used for wireless communication

Technical Field

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

Background

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

In evolution of 5G and subsequent Release 17 releases, Multi-Beam (Multi-Beam) schemes will be evolved and enhanced continuously, wherein an important aspect is how to enhance the transmission performance of PDCCH under Multi-Beam, especially under Multi-Transmitter Receiver Points (Multi-tx receiving Points) in a Multi-Beam scenario.

Disclosure of Invention

Under the Multi-TRP combined Multi-beam scene, a solution for enhancing the PDCCH performance is to simultaneously transmit PDCCHs carrying the same information on beams corresponding to a plurality of TRPs, so as to realize 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, thereby simplifying the complexity of terminal side channel estimation and improving the performance of channel estimation. In a multi-TRP scenario, the definition of REG Bundle needs to be newly defined for the configuration of multiple TRPs (Transmitter Receiver Points).

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

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

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

receiving first information and second information;

monitoring for first signaling in the first pool of time-frequency resources;

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

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

According to one aspect of the application, comprising:

receiving third information;

wherein the third information is used to determine the first pool of time-frequency resources; 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 application, comprising:

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; q1 is a positive integer greater than 1.

According to an aspect of the application, the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprises K3 resource element groups, the 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, the K3 resource element groups included in any one of the K2 resource element groups occupy frequency domain resources corresponding to the same RB, and all resource element groups occupying the frequency domain resources corresponding to the same RB are associated with one candidate parameter of the M1 candidate parameters.

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

According to an aspect of the application, the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprises K3 resource element groups, the 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 element groups of the plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are respectively associated with two different candidate parameters of the M1 candidate parameters.

As an embodiment, the technical advantage of the above method is: when the PDCCH adopts a TDM (Time Division Multiplexing) transmission scheme and K3 is not greater than N1, it indicates that the first Time-frequency resource pool is split into multiple TDM resource sub-pools, and the multiple TDM resource sub-pools respectively correspond to multiple different TCI-states, and in this scenario, the mapping of REGs in the resource sub-pools conforms to a mode of a Time domain first frequency domain second, which simultaneously guarantees a channel estimation gain brought by a REG bundle and a Time domain diversity gain brought by TDM.

According to an aspect of the application, the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any one of the K2 resource element groups comprises K3 resource element groups, the K3 is a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource element groups included in any one of the K2 resource element groups occupy time domain resources 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 all resource element groups included in one resource element group cannot be located in the frequency domain resource corresponding to one rb (resource block) included in the first time-frequency resource pool, and then the resource element group mapping adopts the second way of the first time domain of the frequency domain to ensure the gain of channel estimation brought by the REG bundle.

According to one aspect of the application, comprising:

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

wherein the first signaling is used to indicate the second set of 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 application, comprising:

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

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

sending the first information and the second information;

transmitting 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, a recipient of the first information comprises a first node that assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, and the second information is used to determine the number of resource unit groups comprised by the first resource unit 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 element groups comprised by the first resource element group is used together with the target transmission method to determine the first candidate parameter from the M1 candidate parameters.

According to one aspect of the application, comprising:

sending third information;

According to one aspect of the application, comprising:

sending fourth information;

According to one aspect of the application, comprising:

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

According to one aspect of the application, comprising:

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

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

a first receiver receiving the first information and the second information;

a first transceiver to monitor for first signaling in the first pool of time-frequency resources;

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

a first transmitter that transmits the first information and the second information;

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

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

determining a mapping relationship from REG Bundle to TCI (Transmission Configuration Indication) by using the Transmission mode adopted by REG Bundle Size and PDCCH, and further balancing robustness and performance;

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

Drawings

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

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

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

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

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

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

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

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

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

fig. 9 shows a schematic diagram of K1 resource element groups according to an embodiment of the present application;

fig. 10 shows a schematic diagram of K1 resource element groups according to another embodiment of the present application;

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

FIG. 12 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

figure 13 shows a block diagram of a structure for use in a second node according to an embodiment of the present application;

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource element group is one of the K2 resource element groups, the first node assumes that all resource element groups comprised by the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups comprised by 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 element groups comprised by the first resource element group is used together with the target transmission method 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 a number of resource element groups included in the first resource element group.

As an embodiment, the second information indicates K3, the 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 scheme is an FDM transmission scheme.

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

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) 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 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 a controlResourceSet IE in TS 38.331.

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

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

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

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

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

As an embodiment, the first time-frequency resource pool is associated to a CORESET Identity (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 to a CORESET Pool Identity (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).

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

As an embodiment, the first time-frequency resource pool is associated to a search space pool identification.

For one embodiment, the first time-frequency resource pool includes M1 CORESET.

For one embodiment, the first time-frequency resource pool includes M1 search spaces.

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

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

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

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

As one embodiment, the monitoring the first signaling includes: the first node blindly detects the first signaling.

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

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

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

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

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

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

As an embodiment, the K1 resource unit groups are K1 REGs, respectively.

As an embodiment, any resource element group of the K1 resource element groups occupies 12 REs.

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

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

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

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

As an embodiment, the first signaling is PDCCH.

As one 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 example, the above phrase that the K1 resource element groups are divided into K2 resource element groups means that: any one of the K1 resource element groups belongs to one of the K2 resource element groups.

As an embodiment, the K2 resource unit groups are K2 REG bundles (bundles), respectively.

As an embodiment, all resource unit groups comprised by any one of the K2 resource unit groups are associated to one 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 comprised by any one of the K2 resource element groups employ the same precoding.

As an embodiment, the first node assumes that all resource elements included in any resource element group of the K2 resource element groups employ the same precoding.

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 an embodiment, the first time-frequency resource pool is configured to T1 TRPs, the T1 being a positive integer greater than 1.

As a sub-embodiment of this embodiment, the T1 TRPs share 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, the T1 is equal to the M1, and the T1 TRPs are associated to the M1 candidate parameters, respectively.

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

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

As a sub-embodiment of this embodiment, any of the T1 CORESET pools includes 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, said T1 CORESET pools are respectively associated to said M1 candidate parameters.

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 TRPs, respectively.

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

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

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

As an embodiment, the first group of resource units comprises a number of resource unit groups equal to K3, the K3 being a positive integer greater than 1, the value of K3 and the target transmission mode together being used to determine to which of the M1 candidate parameters the first group of resource units is associated.

As an embodiment, the number of resource unit groups comprised by any one of the K2 resource unit groups is equal to K3, the K3 is a positive integer greater than 1, the value of K3 and the target transmission mode are together used 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 resource unit group of the K2 resource unit groups is equal to K3, the K3 is a positive integer greater than 1, and the value of the K3 and the target transmission mode are used together to determine the 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 receive 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-State, respectively.

As one embodiment, the M1 candidate parameters respectively correspond to M1 TCI-StateId.

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

As a sub-embodiment of this embodiment, the given candidate signal is any one of the M1 candidate Signals, the given candidate signal includes a CSI-RS (Channel-State Information references Signals), or the given candidate signal includes an SSB (SS/PBCH Block, synchronization signal/physical broadcast Channel Block).

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

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

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

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

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

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

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

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

As an 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 elements), where P is 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 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMF/UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. 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 PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

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

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

For one embodiment, the first information is generated in the MAC352 or the MAC 302.

As an embodiment, the first information is generated at the RRC 306.

For one embodiment, the second information is generated in the MAC352 or the MAC 302.

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

For one embodiment, the third information is generated in the MAC352 or the MAC 302.

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

For one embodiment, the fourth information is generated in the MAC352 or the MAC 302.

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

For one embodiment, the first signaling is generated from the PHY301 or the PHY 351.

For one embodiment, the first signaling is generated in the MAC352 or the MAC 302.

For one embodiment, the first signal is generated from the PHY301 or the PHY 351.

For one embodiment, the first signal is generated at the MAC352 or the MAC 302.

As an embodiment, the first signal is generated at the RRC 306.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving first information and second information; and monitoring for first signaling in the first pool of time-frequency resources; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource element group is one of the K2 resource element groups, the first node assumes that all resource element groups comprised by the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups comprised by 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 element groups comprised by the first resource element group is used together with the target transmission method 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 result in actions comprising: receiving first information and second information; and monitoring for first signaling in the first pool of time-frequency resources; the first information is used for determining a target transmission mode; the first time-frequency resource pool comprises K1 resource element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource element group is one of the K2 resource element groups, the first node assumes that all resource element groups comprised by the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups comprised by 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 element groups comprised by the first resource element group is used together with the target transmission method 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: sending the first information and the second information; and transmitting 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, a recipient of the first information comprises a first node that assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, and the second information is used to determine the number of resource unit groups comprised by the first resource unit 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 element groups comprised by the first resource element group is used together with the target transmission method 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 result in actions comprising: sending the first information and the second information; and transmitting 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, a recipient of the first information comprises a first node that assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, and the second information is used to determine the number of resource unit groups comprised by the first resource unit 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 element groups comprised by the first resource element group is used together with the target transmission method 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.

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

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

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

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

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

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

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

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

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

Example 5

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

For theFirst 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 for first signaling in the first pool of time-frequency resources in step S13; the first signal is received in a second set of time-frequency resources in step S14.

For theSecond node N2Transmitting the first information and the second information in step S20; transmitting third information in step S21; transmitting fourth information in step S22; transmitting 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, the first node U1 assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, the second information is used to determine the number of resource unit groups comprised by the first resource unit 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, the number of resource element groups comprised by the first resource element group and the target transmission mode together being used to determine the first candidate parameter from the M1 candidate parameters; the third information is used to determine the first pool of time-frequency resources; 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; q1 is a positive integer greater than 1; the first signaling is used to indicate the second set of 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 a Physical layer Channel carrying the first signaling includes a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first signaling is a Downlink Grant (DL Grant), and a transmission 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 a controlResourceSet IE.

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

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

As an embodiment, the RRC signaling carrying the third information includes a 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 a time domain resource 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 one embodiment, the RRC signaling carrying the third information includes TCI-statesdcch-ToAddList.

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

As an embodiment, the phrase that the target transmission mode is used to determine the meaning of the M1 candidate parameters 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-class 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-class candidate parameters; any one of the M1 first-class candidate parameters is different from any one of the M1 second-class candidate parameters.

As an embodiment, the phrase that the target transmission mode is used to determine the meaning of the M1 candidate parameters 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-class 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-class candidate parameters; at least one of the M1 first-class candidate parameters is different from any one of the M1 second-class candidate parameters.

As an embodiment, the phrase that the target transmission mode is used to determine the meaning of the M1 candidate parameters includes: the target transmission is one of W1 transmissions, the W1 is a positive integer greater than 1, the W1 transmissions are respectively associated with W1 candidate parameter sets; when the target transmission scheme is a given transmission scheme of the W1 transmission schemes, the M1 candidate parameters belong to a candidate parameter set associated with the given transmission scheme of the W1 candidate parameter sets.

As a sub-embodiment of this embodiment, at least one candidate parameter set 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 schemes include a TDM transmission scheme and an FDM transmission scheme.

As a sub-embodiment of this embodiment, the W1 transport modes include an SDM transport mode.

As a sub-embodiment of this embodiment, the MAC CE is used to indicate which of the W1 transport schemes the target transport scheme is.

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

As one 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 FDM transmission modes.

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

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

As an example, the first transmission scheme is one of the Q1 candidate transmission schemes.

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

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

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 one embodiment, the first signaling is used to schedule the first signal.

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

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

As an embodiment, the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource unit groups comprises K3 resource unit groups, the 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, the K3 resource element groups included in any one of the K2 resource element groups occupy frequency domain resources corresponding to the same RB, and all resource element groups occupying the frequency domain resources corresponding to the same RB are associated with one candidate parameter of the M1 candidate parameters.

As an embodiment, the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain, any one of the K2 resource unit groups comprises K3 resource unit groups, the 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 element groups of the plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are respectively associated with two different candidate parameters of the M1 candidate parameters.

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

Example 6

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

For theFirst 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 for first signaling in the first pool of time-frequency resources in step S33; the first signal is transmitted in a second set of time-frequency resources in step S34.

For theSecond 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 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, the first node U3 assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, the second information is used to determine the number of resource unit groups comprised by the first resource unit 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, the number of resource element groups comprised by the first resource element group and the target transmission mode together being used to determine the first candidate parameter from the M1 candidate parameters; the third information is used to determine the first pool of time-frequency resources; 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; q1 is a positive integer greater than 1; the first signaling is used to indicate the second set of 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 a Physical layer Channel carrying the first signaling includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first signaling is an Uplink Grant (UL Grant), and a transport layer Channel carrying the first signal 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 multicarrier symbols in the time domain, the target transmission mode is a frequency division multiplexing mode, and the K3 is not greater than the N1. In the figure, a small rectangular box represents one resource element group in the K1 resource element groups, a reference number in the small rectangular box represents an index of the corresponding resource element group in the K1 resource element groups, and the K1 resource element groups are indexed in an order of time domain first frequency domain second; the thick dashed box in the figure represents the first time-frequency resource pool.

As an embodiment, the K1 resource element groups are indexed in the first time-frequency resource pool in the order of time domain first and 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 both the first time-frequency resource sub-pool and the second time-frequency resource sub-pool include a positive integer number of resource element groups greater than 1.

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

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

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

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

As a sub-embodiment of this embodiment, W is equal to 0.5 × K1; the resource unit groups included in the first time-frequency resource sub-pool are sequentially indexed to resource unit group #0 to resource unit group # (W-1); the resource element groups included in the second time-frequency resource sub-pool are sequentially indexed from resource element group # W to resource element 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 continuous 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 continuous.

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

Example 8

Embodiment 8 illustrates a schematic diagram of another 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 multicarrier symbols in the time domain, the target transmission mode is a time division multiplexing mode, and the K3 is not greater than the N1; a small rectangular box in the figure represents one resource element group of the K1 resource element groups, and a reference numeral in the small rectangular box represents an index of the corresponding resource element group in the K1 resource element 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 multicarrier symbols in the time domain, the second time-frequency resource sub-pool occupies N2 multicarrier 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 frame marks filled with oblique lines in the graph belong to the resource unit groups of the first time-frequency resource sub-pool, and the small rectangular frame marks filled with oblique squares in the graph belong to the resource unit groups of the second time-frequency resource sub-pool; the reference numbers in the small rectangular boxes indicate the indexes of the corresponding resource element groups in the K1 resource element groups.

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

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

Example 9

Example 9 illustrates a schematic diagram of a group of K1 resource elements according to the present application; as shown in fig. 9. In fig. 9, the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain; a small rectangular box in the figure represents one resource element group of the K1 resource element groups, and a reference numeral in the small rectangular box represents an index of the corresponding resource element group in the K1 resource element groups; when the target transmission is the FDM transmission and the K3 is greater than the N1, the mapping of fig. 9 is used.

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, 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 frame marks filled with oblique lines in the graph belong to the resource unit groups of the first time-frequency resource sub-pool, and the small rectangular frame marks filled with oblique squares in the graph belong to the resource unit groups of the second time-frequency resource sub-pool; the reference numbers in the small rectangular boxes indicate the indexes of the corresponding resource element groups in the K1 resource element groups.

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

Example 10

Embodiment 10 illustrates a schematic diagram of another K1 resource element groups according to the present application; as shown in fig. 10. In fig. 10, the first time-frequency resource pool occupies N1 multicarrier symbols in the time domain; a small rectangular box in the figure represents one resource element group of the K1 resource element groups, and a reference numeral in the small rectangular box represents an index of the corresponding resource element group in the K1 resource element 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 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 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 frame marks filled with oblique lines in the graph belong to the resource unit groups of the first time-frequency resource sub-pool, and the small rectangular frame marks filled with oblique squares in the graph belong to the resource unit groups of the second time-frequency resource sub-pool; the reference numbers in the small rectangular boxes indicate the indexes of the corresponding resource element groups in the K1 resource element 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 to M1 TRPs; the M1 TRPs transmit wireless signals in M1 beamforming vectors shown in the figure, respectively.

As an embodiment, the M1 TRPs are associated to M1 candidate parameters, respectively.

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

As an 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 sets of CSI-RS resources, any one of the M1 sets of CSI-RS resources comprising a positive integer number of CSI-RS resources.

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

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

As an example, the M1 TRPs interact directly over the Ideal Backhaul link (Ideal Backhaul).

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

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

As an example, the M1 TRPs 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 comprises a first receiver 1201 and a second transceiver 1202.

A first receiver 1201 receiving the first information and the second information;

a first transceiver 1202 that monitors the first pool of time-frequency resources for first signaling;

in embodiment 12, the first information is used to determine a target transmission mode; the first time-frequency resource pool comprises K1 resource element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource element group is one of the K2 resource element groups, the first node assumes that all resource element groups comprised by the first resource element group employ the same precoding, and the second information is used to determine the number of resource element groups comprised by 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 element groups comprised by the first resource element group is used together with the target transmission method 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 pool of time-frequency resources; 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; 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 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 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 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 of embodiment 4.

For one embodiment, 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 embodiment 4.

Example 13

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

A first transmitter 1301 transmitting the first information and the second information;

a second transceiver 1302 for transmitting 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 element groups, and the first signaling occupies a positive integer number of resource element groups larger than 1 in K1 resource element groups included in the first time-frequency resource pool; the K1 resource element groups are divided into K2 resource element groups, the K2 is a positive integer greater than 1, any one of the K2 resource element groups includes more than 1 resource element groups; a first resource unit group is one of the K2 resource unit groups, a recipient of the first information comprises a first node that assumes that all resource unit groups comprised by the first resource unit group employ the same precoding, and the second information is used to determine the number of resource unit groups comprised by the first resource unit 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 element groups comprised by the first resource element group is used together with the target transmission method to determine the first candidate parameter from the M1 candidate parameters.

For one embodiment, the first transmitter 1301 transmits third information; the third information is used to determine the first pool of time-frequency resources; 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 transmitter 1301 transmits the fourth information; the fourth information is used to indicate Q1 candidate transmission modes, the target transmission mode being one of the Q1 transmission modes; q1 is a positive integer greater than 1.

For one embodiment, the second transceiver 1302 transmits a first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of 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 a first signal in a second set of time-frequency resources; the first signaling is used to indicate the second set of 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 transmitter 1301 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 in embodiment 4.

For one embodiment, 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 embodiment 4.

Example 14

Embodiment 14 illustrates a schematic diagram of a 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 the indexes corresponding to the K3 resource unit groups are consecutive.

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

As an example, the K3 resource element groups are TDM.

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

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

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

Claims

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

a first receiver receiving the first information and the second information;

2. The first node of claim 1, wherein the first receiver receives third information; the third information is used to determine the first pool of time-frequency resources; 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, characterized in that 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; q1 is a positive integer greater than 1.

4. The first node according to any of claims 1-3, wherein the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any of the K2 resource element groups comprises K3 resource element groups, the 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, the K3 resource element groups included in any one of the K2 resource element groups occupy frequency domain resources corresponding to the same RB, and all resource element groups occupying the frequency domain resources corresponding to the same RB are associated with one candidate parameter of the M1 candidate parameters.

5. The first node according to any of claims 1-3, wherein the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any of the K2 resource element groups comprises K3 resource element groups, the 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 element groups of the plurality of resource element groups occupying the frequency domain resource corresponding to the same RB are respectively associated with two different candidate parameters of the M1 candidate parameters.

6. The first node according to any of claims 1-3, wherein the first pool of time-frequency resources occupies N1 multicarrier symbols in the time domain, any of the K2 resource element groups comprises K3 resource element groups, the K3 is a positive integer greater than 1; when the K3 is greater than the N1, the K3 resource element groups included in any one of the K2 resource element groups occupy time domain resources corresponding to the same multicarrier symbol.

7. The first node according to any of claims 1-6, wherein the first transceiver operates a 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 resources; the first signal adopts a first transmission mode, and the target transmission mode is used for determining the first transmission mode.

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

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

receiving first information and second information;

monitoring for first signaling in the first pool of time-frequency resources;

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

sending the first information and the second information;

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