CN118201117A

CN118201117A - Method and apparatus in a node for wireless communication

Info

Publication number: CN118201117A
Application number: CN202211601918.2A
Authority: CN
Inventors: 吴克颖; 宋姝林; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2024-06-14
Also published as: WO2024125242A1

Abstract

A method and apparatus in a node for wireless communication is disclosed. The method comprises the steps that a first node receives first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal; executing a first channel access procedure and a second channel access procedure; transmitting at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or refraining from transmitting the first and second sub-signals in a first time domain resource block in the first sub-band; whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure. The application can indicate the transmission of the MTRP in the unauthorized system, and improves the transmission efficiency and the flexibility.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a scheme and apparatus related to Multi-TRP (Multiple Transmission Reception Point, multiple transmission reception points) in a wireless communication system.

Background

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet different performance requirements of various application scenarios, research on a New air interface technology (NR, new Radio) (or 5G) is decided at the 3GPP (3 rd Generation Partner Project, third generation partnership project) RAN (Radio Access Network ) #72 full-time, and standardization Work on NR is started at the 3GPP RAN #75 full-time WI (Work Item) that passes the New air interface technology (NR, new Radio). The multi-antenna technology is a key technology in a 3GPP (3 rd Generation Partner Project, third generation partnership project) LTE (Long-term Evolution) system and an NR (New Radio) system. Additional spatial freedom is obtained by configuring multiple antennas at a communication node, such as a base station or UE (User Equipment). The multiple antennas are formed by beam forming, and the formed beams point to a specific direction to improve the communication quality. The degrees of freedom provided by the multi-antenna system may be used to improve transmission reliability and/or throughput. When a plurality of antennas belong to a plurality of TRP (TRANSMITTER RECEIVER Point), additional diversity gain can be obtained by using the spatial difference between different TRP/panel. In NRR (release) 16 and R17, downlink and uplink transmission based on multi-beam/TRP/panel are supported, respectively, for improving reliability of transmission and transmission rate. In NRR18, further enhancements based on multi-beam/TRP/panel transmissions are discussed.

To increase the available spectrum to meet the increasing demand for traffic, communications over unlicensed spectrum (shared spectrum) have been introduced starting from LTE R13 and R14. In unlicensed spectrum, a transmitter (base station or UE) needs to perform a channel access procedure before transmitting to ensure that it does not interfere with other ongoing transmissions on the unlicensed spectrum. In NR R17, a beam-based channel access procedure is introduced to meet the requirements of different frequency ranges (frequency range 2-2).

Disclosure of Invention

The inventors have found through research that current multi-beam/TRP/panel based transmission techniques need to be enhanced when applied to unlicensed spectrum.

In view of the above, the present application discloses a solution. It should be noted that, although the present application is initially described with respect to a multi-TRP transmission scenario, the present application can also be used in a single-TRP (single-transmit-receive point) transmission scenario. Further, the use of a unified design for different scenarios (including but not limited to multi-TRP and single-TRP) also helps to reduce hardware complexity and cost. Embodiments in any one node of the application and features in embodiments may be applied to any other node without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

As an embodiment, the term (Terminology) in the present application is explained with reference to the definition of the 3GPP specification protocol TS36 series.

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS38 series.

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS37 series.

As one example, the term in the present application is explained with reference to definition of a specification protocol of IEEE (Institute of electrical and electronics engineers) ELECTRICAL AND Electronics Engineers.

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

receiving a first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal;

Executing a first channel access procedure and a second channel access procedure;

transmitting at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or refraining from transmitting the first and second sub-signals in a first time domain resource block in the first sub-band;

Wherein whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, the method determines whether the first sub-signal and the second sub-signal are transmitted through the first channel access process and the second channel access process respectively, so that flexibility of the system is improved, probability of channel access is increased, and transmission efficiency is improved.

As an embodiment, the above method executes the first channel access procedure and the second channel access procedure for the first sub-signal and the second sub-signal respectively, so as to avoid interference to other transmissions on the unlicensed spectrum and ensure fairness for channel occupation.

As an embodiment, the above method has better backward compatibility.

According to an aspect of the application, the first SRS resource is used for determining the spatial relationship of the first sub-signal and the second SRS resource is used for determining the spatial relationship of the second sub-signal; the first SRS resource belongs to a first SRS resource set, and the second SRS resource belongs to a second SRS resource set.

As an embodiment, the first SRS resource and the second SRS resource are used to determine the spatial relationship between the first sub-signal and the second sub-signal, which realizes that the robustness and/or the transmission efficiency of the transmission are improved based on multi-beam/TRP/panel.

According to one aspect of the present application, it is characterized by comprising:

receiving second signaling, the second signaling being used to determine a first time window and a first set of indices;

Wherein the first time domain resource block is located within the first time window; the spatial relationship of the first sub-signal is related to a first index and the spatial relationship of the second sub-signal is related to a second index; the type of the first channel access procedure depends on whether the first index belongs to the first set of indices, and the type of the second channel access procedure depends on whether the second index belongs to the first set of indices.

As an embodiment, the first index set and the second index set indicate which uplink transmissions can share the channel occupation, and interference to other transmissions is avoided while the channel access opportunity is increased.

Receiving third signaling, wherein the third signaling indicates a first TCI state group, and the first TCI state group comprises at least two TCI states;

Wherein a first TCI state and a second TCI state are used for applying the first sub-signal and the second sub-signal, respectively; the first TCI state and the second TCI state both belong to the first TCI state group; the first index depends on the position of the first TCI state in the first TCI state group, and the second index depends on the position of the second TCI state in the first TCI state group.

As an embodiment, the first TCI state and the second TCI state are used for applying to the first sub-signal and the second sub-signal, respectively, the above method supports determining the TCI states of the first sub-signal and the second sub-signal with unifiedTCI indication, reducing signaling overhead.

According to an aspect of the application, it is characterized in that said first sub-signal and said second sub-signal are transmitted in said first time domain resource block in said first sub-band in relation to whether said first sub-signal and said second sub-signal carry the same transport block.

As an embodiment, the above method optimizes different multi-beam/TRP/panel transmission modes in unlicensed spectrum based on the characteristics of different transmission modes.

According to an aspect of the application, the coverage area of the perceived beam of the first channel access procedure is different from the coverage area of the perceived beam of the second channel access procedure.

As an embodiment, the method improves the channel access probability and ensures the fairness of channel occupation.

According to one aspect of the application, the spatial filter of the perceived beam of the first channel access procedure covers the transmission beam of the first sub-signal, and the spatial filter of the perceived beam of the second channel access procedure covers the transmission beam of the second sub-signal.

As an embodiment, the above method ensures that no interference is generated to other transmissions.

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

transmitting a first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal;

Receiving at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or discarding the first and second sub-signals in a first time domain resource block in a first sub-band;

Wherein whether the first sub-signal is received in the first time domain resource block in the first sub-band depends on a first channel access procedure and whether the second sub-signal is received in the first time domain resource block in the first sub-band depends on a second channel access procedure.

According to an aspect of the application, it is characterized in that said first sub-signal and said second sub-signal are received in said first time domain resource block in said first sub-band and in that said first sub-signal and said second sub-signal carry the same transport block.

The application discloses a first node used for wireless communication, which is characterized by comprising the following components:

A first receiver for receiving a first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal;

A first transmitter performing a first channel access procedure and a second channel access procedure;

The present application discloses a second node used for wireless communication, which is characterized by comprising:

a second transmitter transmitting a first signaling, the first signaling including scheduling information of a first signal, the first and second sub-signals respectively including different layers of the first signal;

A second receiver that receives at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or that discards the first and second sub-signals in the first time domain resource block in the first sub-band;

Wherein whether the first sub-signal is received in the first time domain resource block in the first sub-band depends on the first channel access procedure and whether the second sub-signal is received in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, the present application has the following advantages over the conventional scheme:

-increased flexibility of the system;

Transmission efficiency is improved.

Drawings

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

fig. 1 shows a flow chart of a first signaling according to an embodiment of the application;

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

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

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

FIG. 5 illustrates a flow chart of a transmission according to one embodiment of the application;

Fig. 6 shows a schematic diagram of a first SRS resource and a second SRS resource according to an embodiment of the present application;

FIG. 7 shows a schematic diagram in which second signaling is used to determine a first time window and a first set of indices, according to an embodiment of the application;

FIG. 8 shows a schematic diagram of a first TCI state and a second TCI state in accordance with an embodiment of the application;

FIG. 9 shows a schematic diagram of a first sub-signal and a second sub-signal according to one embodiment of the application;

Fig. 10 shows a schematic diagram of a first channel access procedure and a second channel access procedure according to an embodiment of the application;

Fig. 11 shows a schematic diagram of a first channel access procedure and a second channel access procedure according to another embodiment of the present application;

Fig. 12 shows a flow chart of a channel access procedure according to an embodiment of the application;

Fig. 13 shows a flow chart of a channel access procedure according to another embodiment of the application;

Fig. 14 shows a block diagram of a processing arrangement for use in a first node device according to an embodiment of the application;

fig. 15 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of a first signaling according to an embodiment of the application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a particular chronological relationship between the individual steps.

In embodiment 1, the first node in the present application receives a first signaling in step 101, where the first signaling includes scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively include different layers of the first signal; performing a first channel access procedure and a second channel access procedure in step 102; transmitting at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or refraining from transmitting the first and second sub-signals in a first time domain resource block in the first sub-band in step 103; wherein whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, the protocol layer to which the first signaling belongs includes a MAC layer.

As an embodiment, the first signaling comprises MACCE.

As an embodiment, the protocol layer to which the first signaling belongs includes a physical layer.

As an embodiment, the first signaling comprises DCI.

As an embodiment, the first signaling is DCI.

As an embodiment, the first signaling includes an uplink schedule.

As an embodiment, the first signaling includes an uplink DCI.

As an embodiment, the first signaling includes DCI format 0_0.

As an embodiment, the first signaling includes DCI format 0_1.

As an embodiment, the first signaling includes DCI format 0_2.

As an embodiment, the first signaling is cell common.

As an embodiment, the first signaling is cell specific (CELL SPECIFIC).

As an embodiment, the first signaling is common to a group of user equipments (UE group common).

As an embodiment, the first signaling is user equipment group specific (UE group specific).

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

As an embodiment, the layer refers to: MIMO (Multiple Input Multiple Output), multiple-input multiple-output) layer (layer).

As an embodiment, the layer refers to: a transmission layer (transmission layer).

As an embodiment, the first sub-signal and the second sub-signal occupy the same time-frequency resource.

As an embodiment, the first sub-signal and the second sub-signal occupy overlapping time-frequency resources.

As one embodiment, the DMRS of the first sub-signal and the DMRS of the second sub-signal are mapped to different DMRS ports.

As an embodiment, any antenna port transmitting the first sub-signal and any antenna port transmitting the second sub-signal are not quasi co-located.

As an embodiment, any antenna port transmitting the first sub-signal and any antenna port transmitting the second sub-signal are not quasi co-located with respect to QCL-TypeD.

As an embodiment, the first sub-band comprises one component carrier (Component Carrier).

As an embodiment, the first sub-band includes a BWP (Bandwidth Part).

As an embodiment, the first sub-band comprises an upstream BWP.

As an embodiment, the first sub-band includes only one RB (Resource Block).

As an embodiment, the first sub-band includes at least one RB.

As one embodiment, the first sub-band includes a plurality of RBs.

As one embodiment, the first sub-band includes a plurality of RBs and the plurality of RBs are contiguous in the frequency domain.

As one embodiment, the first sub-band includes a plurality of RBs and any two RBs of the plurality of RBs are discontinuous in the frequency domain.

As an embodiment, the index of the first sub-band is SCellIndex.

As one embodiment, the index of the first sub-band is ServCellIndex.

As an embodiment, the index of the first sub-band is BWP-Id.

As an embodiment, the index of the first subband is a positive integer.

As an embodiment, the index of the first sub-band is a positive integer not greater than 31.

As an embodiment, the index of the first sub-band is a non-negative integer.

As an embodiment, the index of the first sub-band is a non-negative integer no greater than 31.

As an embodiment, the index of the first sub-band is a non-negative integer no greater than 4.

As an embodiment, the first time domain resource block comprises only one slot.

As an embodiment, the first time domain resource block comprises at least one slot.

As an embodiment, the first time domain resource block comprises a plurality of slots.

As an embodiment, the first time domain resource is a continuous time period.

As an embodiment, the first time domain resource includes one or more UL (UpLink) transmission burst (transmission burst).

As an embodiment, the first time domain resource includes a COT (Channel Occupancy Time ).

As an embodiment, the length of the first time domain resource is not greater than one MCOT (Maximum COT, maximum channel occupation time).

As an embodiment, the length of the first time domain resource is not greater than T _{m cop,p}, the T _{m cop,p} is the maximum channel occupation time, and the specific definition of T _{m cop,p} is referred to as 3gpp ts37.213.

As an embodiment, the first time domain resource is no longer than 10ms (milliseconds).

As an embodiment, the first time domain resource is no longer than 8ms (milliseconds).

As one embodiment, the first sub-signal is transmitted in the first time domain resource block in the first sub-band when the first channel access procedure determines that the first sub-band is idle.

As one embodiment, when the first channel access procedure determines that the first sub-band (available) can be used to perform transmission, the first sub-signal is transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when the first channel access procedure determines that the first sub-band is busy (busy), the first sub-signal is relinquished from transmission in the first time domain resource block in the first sub-band.

As one embodiment, the first sub-signal is relinquished from transmission in the first time domain resource block in the first sub-band when the first channel access procedure determines that the first sub-band cannot be used (unavailable) for transmission.

As one embodiment, the second sub-signal is transmitted in the first time domain resource block in the first sub-band when the second channel access procedure determines that the first sub-band is idle.

As one embodiment, when the second channel access procedure determines that the first sub-band (available) can be used to perform transmission, the second sub-signal is transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when the second channel access procedure determines that the first sub-band is busy (busy), the second sub-signal is relinquished from transmission in the first time domain resource block in the first sub-band.

As one embodiment, the second sub-signal is relinquished from transmission in the first time domain resource block in the first sub-band when the second channel access procedure determines that the first sub-band cannot be used (unavailable) for transmission.

As an embodiment, when both the first channel access procedure and the second channel access procedure determine that the first sub-band can be used for performing transmission, both the first sub-signal and the second sub-signal are transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when the first channel access procedure determines that the first sub-band can be used to perform transmission and the second channel access procedure determines that the first sub-band cannot be used to perform transmission, the first sub-signal is transmitted in the first time domain resource block in the first sub-band and the second sub-signal is dropped from being transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when the first channel access procedure determines that the first sub-band cannot be used to perform transmission and the second channel access procedure determines that the first sub-band can be used to perform transmission, the first sub-signal is relinquished from transmission in the first time domain resource block in the first sub-band, and the second sub-signal is transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when both the first channel access procedure and the second channel access procedure determine that the first sub-band cannot be used to perform transmission, both the first sub-signal and the second sub-signal are discarded from transmission in the first time domain resource block in the first sub-band.

As an embodiment, the type of the first channel access procedure and the second channel access procedure is indicated by the first signaling.

As an embodiment, the types of the first channel access procedure and the second channel access procedure are indicated by the CHANNELACCESS-CPext field.

As one embodiment, the types of the first channel access procedure and the second channel access procedure include Type 1 (Type 1), type 2 (Type 2), and Type 3 (Type 3).

As an embodiment, the types of the first channel access procedure and the second channel access procedure comprise type 2.

As a sub-embodiment of the above embodiment, the types of the first channel access procedure and the second channel access procedure include Type 2A (Type 2A), type 2B (Type 2B), and Type 2C (Type 2C).

As a sub-embodiment of the above embodiment, the first channel access procedure comprises at least one transmission.

As a sub-embodiment of the above embodiment, the first channel access procedure comprises a plurality of transmissions.

As a sub-embodiment of the above embodiment, when the type of the first channel access procedure is type 2A, the first channel access procedure includes a plurality of transmissions and an interval (gap) between any two of the transmissions is at least 25 μs.

As a sub-embodiment of the above embodiment, when the type of the first channel access procedure is type 2B, the first channel access procedure includes a plurality of transmissions and an interval between any two transmissions is 16 μs.

As a sub-embodiment of the above embodiment, when the type of the first channel access procedure is type 2C, the first channel access procedure includes a plurality of transmissions and an interval between any two of the transmissions is greater than 16 μs.

As a sub-embodiment of the above embodiment, the second channel access procedure comprises at least one transmission.

As a sub-embodiment of the above embodiment, the second channel access procedure comprises a plurality of transmissions.

As a sub-embodiment of the above embodiment, when the type of the second channel access procedure is type 2A, the second channel access procedure includes a plurality of transmissions and an interval between any two of the transmissions is at least 25 μs.

As a sub-embodiment of the above embodiment, when the type of the second channel access procedure is type 2B, the second channel access procedure includes a plurality of transmissions and an interval between any two of the transmissions is 16 μs.

As a sub-embodiment of the above embodiment, when the type of the second channel access procedure is type 2C, the second channel access procedure includes a plurality of transmissions and an interval between any two of the transmissions is greater than 16 μs.

As one embodiment, when the type of the first channel access procedure and the second channel access procedure is type 3, the first node does not perform a perceived (sending) channel before sending one transmission.

As an embodiment, the first channel access procedure and the second channel access procedure are uplink channel access procedures, respectively.

As an embodiment, the first channel access procedure and the second channel access procedure are performed independently.

As an embodiment, the type of the first channel access procedure and the type of the second channel access procedure are the same.

As an embodiment, the type of the first channel access procedure and the type of the second channel access procedure are different.

As an embodiment, the type of the first channel access procedure and the type of the second channel access procedure are indicated by the first signaling.

As an embodiment, the type of the first channel access procedure and the type of the second channel access procedure are indicated separately.

As an embodiment, the determination of the initial value of the counter of the first channel access procedure and the determination of the initial value of the counter of the second channel access procedure are independent from each other.

As an embodiment, the determination of the contention window (contention window) of the first channel access procedure and the determination of the contention window of the second channel access procedure are independent from each other.

As an embodiment, the first channel access procedure and the second channel access procedure overlap in the time domain.

As an embodiment, the end time of the first channel access procedure and the second channel access procedure are the same.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the application, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved PACKET SYSTEM) 200. The 5GNR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved PACKET SYSTEM) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in sidelink (Sidelink) communication with the UE201, NG-RAN (next generation radio access network) 202,5GC (5G CoreNetwork)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified DATA MANAGEMENT, unified data management) 220 and internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit switched services. The NG-RAN202 includes an NR (NewRadio, new wireless) node B (gNB) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), TRP (transmit-receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband physical network device, a machine-type communication device, a land vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication MANAGEMENT FIELD, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (SERVICE GATEWAY, serving gateway)/UPF (User Plane Function, user plane functions) 212 and P-GW (PACKET DATE Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. The MME/AMF/SMF211 generally provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, internet, intranet, IMS (IP Multimedia Subsystem ) and packet-switched (PACKET SWITCHING) services.

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

As an embodiment, the first node in the present application includes the UE241.

As an embodiment, the second node in the present application includes the gNB203.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to one embodiment of the present application, as shown in fig. 3.

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (RSU in UE, gNB or V2X) and a second communication node device (RSU in gNB, UE or V2X), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (PACKET DATA Convergence Protocol ) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets and handover support for the first communication node device between second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (SERVICE DATA Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRB, dataRadioBearer) to support diversity of traffic. Although not shown, the first communication node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).

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

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

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

As an embodiment, the first signaling is generated in the MAC sublayer 302.

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

As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

As one embodiment, the higher layer in the present application is referred to as the MAC sublayer 302.

As an embodiment, the higher layer in the present application refers to the RLC sublayer 303.

As an embodiment, the higher layer in the present application refers to the PDCP sublayer 304.

As one embodiment, the higher layer in the present application refers to the L2 layer 305.

As an embodiment, the higher layer in the present application refers to the RRC layer 306.

Example 4

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

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

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

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

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

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

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. The controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the second communication device 450. Upper layer packets from the controller/processor 475 may be provided to the core network. The controller/processor 475 is also responsible for error detection using an ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the second communication device 450 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 450 means at least: receiving a first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal; executing a first channel access procedure and a second channel access procedure; transmitting at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or refraining from transmitting the first and second sub-signals in a first time domain resource block in the first sub-band; whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first signaling; executing a first channel access procedure and a second channel access procedure; at least one of the first and second sub-signals is transmitted in a first time domain resource block in a first sub-band or the first and second sub-signals are discarded from transmission in the first time domain resource block in the first sub-band.

As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting a first signaling, wherein the first signaling comprises scheduling information of a first signal, and a first sub-signal and a second sub-signal respectively comprise different layers of the first signal; receiving at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or discarding the first and second sub-signals in a first time domain resource block in a first sub-band; whether the first sub-signal is received in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is received in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first signaling; at least one of the first and second sub-signals is received in a first time domain resource block in a first sub-band or received in a first time domain resource block in a first sub-band.

As an embodiment, the first node in the present application includes the second communication device 450.

As an embodiment, the second node in the present application comprises the first communication device 410.

As an example, { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, at least one of the data sources 467} are used for receiving the first signaling in the present application; at least one of { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to transmit the first signaling in the present application.

As an example, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is used to transmit the first signal in the present application; at least one of { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to receive the first signals in the present application.

As an example, { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, at least one of the data sources 467} are used to transmit the first sub-signal in the present application; at least one of { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to receive the first sub-signal in the present application.

As an example, { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, at least one of the data sources 467} are used for transmitting the second sub-signal in the present application; at least one of { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to receive the second sub-signal in the present application.

Example 5

Embodiment 5 illustrates a flow chart of a transmission according to one embodiment of the application, as shown in fig. 5. In fig. 5, the first node U1 and the second node N2 are respectively two communication nodes transmitting over the air interface. In fig. 5, the steps in blocks F1 to F3 are optional, respectively.

For the first node U1, receiving a second signaling in step S100; receiving a third signaling in step S101; receiving a first signaling in step S10; performing a first channel access procedure and a second channel access procedure in step S11; at least one of the first and second sub-signals is transmitted in a first time domain resource block in a first sub-band in step S12.

For the second node N2, sending a second signaling in step S200; transmitting a third signaling in step S201; transmitting a first signaling in step S20; at least one of the first and second sub-signals is received in a first time domain resource block in a first sub-band in step S21.

In embodiment 5, whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure; the second signaling is used to determine a first time window and a first set of indices; the third signaling indicates a first set of TCI states, the first set of TCI states including at least two TCI states.

As an embodiment, the first node U1 is the first node in the present application.

As an embodiment, the second node N2 is the second node in the present application.

As an embodiment, the air interface between the second node N2 and the first node U1 comprises a radio interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node N2 and the first node U1 comprises a wireless interface between a relay node device and a user device.

As an embodiment, the air interface between the second node N2 and the first node U1 comprises a wireless interface between user equipment and user equipment.

As an embodiment, the second node N2 is a serving cell maintenance base station of the first node U1.

As an embodiment, the first signaling is used by the first node U1 to schedule the first signal.

As an embodiment, the first signaling is used by the first node U1 to schedule the first sub-signal.

As an embodiment, the first signaling is used by the first node U1 to schedule the second sub-signal.

As an embodiment, the first channel is PUSCH.

As an embodiment, the second channel is PUSCH.

As an embodiment, the transport channel corresponding to the first channel includes an UL-SCH.

As an embodiment, the transport channel corresponding to the second channel includes an UL-SCH.

As an embodiment, the first sub-signal is transmitted on PUSCH.

As an embodiment, the second sub-signal is transmitted on PUSCH.

As an embodiment, the first node U1 transmits at least one of the first and second sub-signals in a first time domain resource block in a first sub-band, and the second node N2 receives at least one of the first and second sub-signals in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 transmits the first sub-signal in a first time domain resource block in a first sub-band, and the second node N2 receives the first sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 transmits the second sub-signal in a first time domain resource block in a first sub-band, and the second node N2 receives the second sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 transmits the first sub-signal and the second sub-signal in a first time domain resource block in a first sub-band, and the second node N2 receives the first sub-signal and the second sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 discards and transmits the first sub-signal and the second sub-signal in a first time domain resource block in a first sub-band, and the second node N2 discards and receives the first sub-signal and the second sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 discards transmitting the first sub-signal in a first time domain resource block in a first sub-band, and the second node N2 discards receiving the first sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the first node U1 discards transmitting the second sub-signal in a first time domain resource block in the first sub-band, and the second node N2 discards receiving the second sub-signal in the first time domain resource block in the first sub-band.

As an example, the step in block F51 of fig. 5 exists, and the first node receives second signaling, where the second signaling is used by the first node to determine the first time window and the first index set.

As an example, the step in block F51 of fig. 5 exists, and the second node sends second signaling, which is used by the first node to determine the first time window and the first index set.

As an example, the step in block F52 of fig. 5 exists, and the first node receives the third signaling.

As an example, the step in block F52 of fig. 5 exists, and the second node sends the third signaling.

As an embodiment, the step in block F53 in fig. 5 exists, and the first node transmits at least one of the first sub-signal and the second sub-signal in a first time domain resource block in a first sub-band.

As an embodiment, the step in block F53 in fig. 5 exists, and the second node receives at least one of the first sub-signal and the second sub-signal in a first time domain resource block in a first sub-band.

As an embodiment, the step in block F53 in fig. 5 does not exist, and the first node discards transmitting the first sub-signal and the second sub-signal in the first time domain resource block in the first sub-band.

As an embodiment, the step in block F53 in fig. 5 does not exist, and the second node discards receiving the first sub-signal and the second sub-signal in the first time domain resource block in the first sub-band.

Example 6

Embodiment 6 illustrates a schematic diagram of a first SRS resource and a second SRS resource according to an embodiment of the present application; as shown in fig. 6.

In embodiment 6, a first SRS resource is used to determine a spatial relationship of the first sub-signal and a second SRS resource is used to determine a spatial relationship of the second sub-signal; the first SRS resource belongs to a first SRS resource set, and the second SRS resource belongs to a second SRS resource set.

As an embodiment, the first SRS resource is used by the first node to determine a spatial relationship of the first sub-signal.

As an embodiment, the second SRS resource is used by the first node to determine a spatial relationship of the second sub-signal.

As an embodiment, the SRS refers to Sounding REFERENCE SIGNAL, sounding reference signal.

As an embodiment, the first set of SRS resources and the second set of SRS resources each include at least one SRS resource.

For one embodiment, the first set of SRS resources is identified by an SRS-ResourceSetId and the second set of SRS resources is identified by an SRS-ResourceSetId.

As an embodiment, SRS-ResourceSetId of the first set of SRS resources is different from SRS-ResourceSetId of the second set of SRS resources.

As an embodiment, the higher layer parameter "usage" of the first SRS resource set and the higher layer parameter "usage" of the second SRS resource set are both set to "nonCodebook", or the higher layer parameter "usage" of the first SRS resource set and the higher layer parameter "usage" of the second SRS resource set are both set to "codebook".

As an embodiment, the first SRS resource set and the second SRS resource set are configured by the same higher layer parameter, and "SRS-ResourceSetToAddModList" is included in the name of the same higher layer parameter.

As an embodiment, the first node is configured with two SRS resource sets by the same higher layer parameter, and the higher layer parameters "usages" associated with the two SRS resource sets are both set to "nonCodebook" or both set to "codebook", and the names of the same higher layer parameter include "SRS-ResourceSetToAddModList".

As an embodiment, each SRS resource in the first set of SRS resources includes at least one SRS port and each SRS resource in the second set of SRS resources includes at least one SRS port.

As an embodiment, each SRS resource in the first set of SRS resources is identified by one SRS-ResourceId and each SRS resource in the second set of SRS resources is identified by one SRS-ResourceId.

As an embodiment, the first SRS resource set is indicated by DCI format 0_1.

As an embodiment, the first SRS resource set is indicated by SRS resource set indicator (SRS resource set indicator).

As an embodiment, the first SRS resource is indicated by DCI format 0_1.

As an embodiment, the first SRS resource is indicated by SRS resource indicator (SRS resource indicator).

As an embodiment, when the higher layer parameter "usage" associated with the first SRS resource set is set to "nonCodebook", the number of SRS resources included in the first SRS resource set depends on the maximum layer (layer) number of the MIMO system.

As a sub-embodiment of the above embodiment, the number of SRS resources comprised by the first set of SRS resources depends on a parameter maxMIMO-Layers, which parameter maxMIMO-Layers is configured by the IE PUSCH-ServingCellConfig.

As a sub-embodiment of the above embodiment, the number of SRS resources included in the first SRS resource set depends on the number of layers of PUSCH supported by the first node.

As an embodiment, the second SRS resource set is indicated by DCI format 0_1.

As an embodiment, the second SRS resource set is indicated by SRS resource set indicator (SRS resource set indicator).

As an embodiment, the second SRS resource is indicated by DCI format 0_1.

As an embodiment, the second SRS resource is indicated by SRS resource indicator (SRS resource indicator).

As an embodiment, when the higher layer parameter "usage" associated with the second SRS resource set is set to "nonCodebook", the number of SRS resources included in the first SRS resource set depends on the maximum layer (layer) number of the MIMO system.

As a sub-embodiment of the above embodiment, the number of SRS resources comprised by the second set of SRS resources is dependent on a parameter maxMIMO-Layers, which parameter maxMIMO-Layers is configured by the IE PUSCH-ServingCellConfig.

As a sub-embodiment of the above embodiment, the number of SRS resources included in the second SRS resource set depends on the number of layers of PUSCH supported by the first node.

As an embodiment, the type of the first SRS resource is configured by a parameter resourceType.

As an embodiment, the type of the first SRS resource includes periodic (periodic), semi-persistent (semi-persistent), and aperiodic (aperiodic).

As an embodiment, the first SRS resource is activated or deactivated by the MAC CE when the type of the first SRS resource is semi-persistent.

As an embodiment, the first SRS resource is triggered by DCI when the type of the first SRS resource is aperiodic.

As an embodiment, the type of the second SRS resource is configured by a parameter resourceType.

As an embodiment, the type of the second SRS resource includes periodic (periodic), semi-persistent, and aperiodic (aperiodic).

As an embodiment, the second SRS resource is activated or deactivated by MACCE when the type of the second SRS resource is semi-persistent.

As an embodiment, the second SRS resource is triggered by DCI when the type of the second SRS resource is aperiodic.

As one embodiment, the spatial relationship includes TCI state.

As an embodiment, the spatial relationship comprises QCL parameters.

As one embodiment, the spatial relationship comprises a QCL relationship.

As one embodiment, the spatial relationship includes QCL assumptions.

As one embodiment, the spatial relationship includes a spatial filter (spatial domain filter).

As one embodiment, the spatial relationship includes a spatial transmit filter (spatial domain transmission filter).

As one embodiment, the spatial relationship includes a transmit spatial filter (Tx SPATIAL FILTER).

As an embodiment, the spatial relationship comprises a transmit antenna port.

As an embodiment, the spatial relationship comprises a precoder.

As an embodiment, the first sub-signal is transmitted by the same antenna port as the SRS port of the first SRS resource.

As an embodiment, the first node transmits the first sub-signal with the same spatial filter and transmits SRS in the first SRS resource.

As an embodiment, the first sub-signal and the SRS in the first SRS resource use the same precoder.

As an embodiment, if transmitted, the first sub-signal is transmitted by the same antenna port as the SRS port of the first SRS resource.

As an embodiment, if the first sub-signal is transmitted, the first node transmits the first sub-signal with the same spatial filter and transmits SRS in the first SRS resource.

As an embodiment, the first sub-signal and the SRS in the first SRS resource employ the same precoder if transmitted.

As an embodiment, the second sub-signal is transmitted by the same antenna port as the SRS port of the first SRS resource.

As an embodiment, the first node transmits the second sub-signal with the same spatial filter and transmits SRS in the second SRS resource.

As an embodiment, the second sub-signal and the SRS in the second SRS resource employ the same precoder.

As an embodiment, if transmitted, the second sub-signal is transmitted by the same antenna port as the SRS port of the first SRS resource.

As an embodiment, if the second sub-signal is transmitted, the first node transmits the second sub-signal with the same spatial filter and transmits SRS in the second SRS resource.

As an embodiment, the second sub-signal and the SRS in the second SRS resource employ the same precoder if transmitted.

As an embodiment, the transmit beam of the first SRS resource is used to determine the transmit beam of the first sub-signal.

As an embodiment, the transmission beam of the first sub-signal is the same as the transmission beam of the first SRS resource.

As an embodiment, the transmit beam of the second SRS resource is used to determine the transmit beam of the second sub-signal.

As an embodiment, the transmission beam of the second sub-signal is the same as the transmission beam of the second SRS resource.

Example 7

Embodiment 7 illustrates a schematic diagram in which second signaling is used to determine a first time window and a first set of indices according to an embodiment of the application; as shown in fig. 7.

In embodiment 7, receiving second signaling, the second signaling being used to determine a first time window and a first set of indices; the first time domain resource block is located within the first time window; the spatial relationship of the first sub-signal is related to a first index and the spatial relationship of the second sub-signal is related to a second index; the type of the first channel access procedure depends on whether the first index belongs to the first set of indices, and the type of the second channel access procedure depends on whether the second index belongs to the first set of indices.

As an embodiment, the second signaling is used by the first node to determine a first time window and a first set of indices.

As an embodiment, the second signaling comprises DCI.

As an embodiment, the second signaling includes DCI format2_0.

As an embodiment, the second signaling is UE-group common.

As an embodiment, the second signaling comprises a CRC (Cyclic Redundancy Check ) scrambled by an SFI-RNTI (Slot Format Indication, slot format indicator).

As an embodiment, the second signaling includes at least one Slot format indicator domain.

As an embodiment, the second signaling includes at least one Slot format indicator field, and the second signaling is configured by a higher layer parameter, where the name of the higher layer parameter includes "slotFormatCombToAddModList".

As an embodiment, the second signaling includes at least one Available RB set Indicator (available RB set indicator) field.

As an embodiment, the second signaling includes at least one Available RB set Indicator field, and the second signaling is configured by a higher layer parameter, where the name of the higher layer parameter includes "availableRB-SetsToAddModList".

As an embodiment, the second signaling comprises at least one COT duration indicator (channel occupancy time indicator) field.

As an embodiment, the second signaling includes at least one COT duration indicator field, and the second signaling is configured by a higher layer parameter, where a name of the higher layer parameter includes "co-DurationsPerCellToAddModList".

As an embodiment, the second signaling includes at least one SEARCH SPACE SET group SWITCHING FLAG (search space set group switch identity) field.

As an embodiment, the second signaling includes at least one SEARCH SPACE SET group SWITCHING FLAG field, and the second signaling is configured by a higher layer parameter, where a name of the higher layer parameter includes "switchTriggerToAddModList".

As an embodiment, the second signaling is DCI format 2_0, and the payload (playload) size of the DCI format 2_0 is configured by one higher layer parameter, where the name of the one higher layer parameter includes "DCI-PayloadSize".

As an embodiment, the second signaling is DCI format 2_0, and the DCI format 2_0 includes at most 128 bits.

As an embodiment, the second signaling indicates the first time window.

As an embodiment, the second signaling comprises a first domain, the first domain in the second signaling being used to determine the first time window.

As an embodiment, the first field in the second signaling indicates a time of receipt of the first time window.

As one embodiment, the first field in the second signaling indicates a remaining channel occupancy duration (REMAINING CHANNEL occupancy duration).

As an embodiment, the first domain is a DCI domain.

As an embodiment, the first field includes DCI field COT duration indicator.

As an embodiment, the first field is DCI field COT duration indicator.

As an embodiment, the location of the first domain is configured by a parameter positionInDCI.

As an embodiment, the first domain is configured by a parameter co-DurationList.

As an embodiment, the value of the first field is configured by a parameter co-Duration.

As an embodiment, the first time window is a COT.

As an embodiment, the first time window belongs to one COT.

As an embodiment, the COT refers to Channel Occupancy Time, and the channel occupation time.

As an embodiment, the unit of the first time window is a time slot.

As an embodiment, the length of the first time window is not greater than one MCOT (Maximum COT), maximum channel occupation time.

As an embodiment, the length of the first time window is not greater than T _{m cop,p}, and the T _{m cop,p} is a maximum channel occupation time.

As one embodiment, the second signaling indicates the first set of indices.

As one embodiment, the second signaling indicates each index in the first set of indices.

As an embodiment, the second signaling indicates the second set of indices.

As one embodiment, the second signaling indicates each index in the second set of indices.

As an embodiment, the meaning of the spatial relationship of the first sub-signal and the first index of the sentence includes: the first index is used to identify the first SRS resource.

As an embodiment, the meaning of the spatial relationship of the first sub-signal and the first index of the sentence includes: the first index is used to identify the first set of SRS resources.

As an embodiment, the first index is SRS-ResourceId of the first SRS resource.

As an embodiment, the first index is SRS-ResourceSetId of the first set of SRS resources.

As an embodiment, the meaning related to the spatial relationship of the second sub-signal and the second index of the sentence includes: the second index is used to identify the second SRS resource.

As an embodiment, the meaning related to the spatial relationship of the second sub-signal and the second index of the sentence includes: the second index is used to identify the second set of SRS resources.

As an embodiment, the second index is SRS-ResourceId of the second SRS resource.

As an embodiment, the second index is SRS-ResourceSetId of the second set of SRS resources.

As an embodiment, the first index is indicated by SRSresourceindicator fields.

As an embodiment, the first index is indicated by SecondSRSresourceindicator fields.

As an embodiment, the second index is indicated by SRSresourceindicator fields.

As an embodiment, the second index is indicated by SecondSRSresourceindicator fields.

As an embodiment, the first index and the second index are indicated by SRSresourceindicator fields and SecondSRSresourceindicator fields, respectively.

As an embodiment, the first index and the second index are indicated by SecondSRSresourceindicator fields and SRSresourceindicator fields, respectively.

As an embodiment, the first index is indicated by SRSresourcesetindicator fields.

As an embodiment, the second index is indicated by SRSresourcesetindicator fields.

As one embodiment, the first index is SRS-ResourceSetId of the first set of SRS resources, the second index is SRS-ResourceSetId of the second set of SRS resources, and the SRS-ResourceSetId of the first set of SRS resources is lower than the SRS-ResourceSetId of the second set of SRS resources.

As one embodiment, the first index is SRS-ResourceSetId of the first set of SRS resources, the second index is SRS-ResourceSetId of the second set of SRS resources, and the SRS-ResourceSetId of the first set of SRS resources is higher than the SRS-ResourceSetId of the second set of SRS resources.

As an embodiment, the first set of indices is identified by an SRS-ResourceSetId.

As an embodiment, the first set of indices includes at least one SRS-ResourceId.

As an embodiment, the first set of indices includes a plurality of SRS-ResourceId.

As an embodiment, the first set of indices is IESRS-Config configured.

As an embodiment, IESRS-Config configures at least one SRS-ResourceSetId in one BWP, any two index sets in the at least one SRS-ResourceSetId are different, and the first index set is different from any one index set in the at least one SRS-ResourceSetId.

As an embodiment, the second set of indices is identified by an SRS-ResourceSetId.

As an embodiment, the second set of indices includes at least one SRS-ResourceId.

As an embodiment, the second set of indices includes a plurality of SRS-ResourceId.

As an embodiment, the second set of indices is IESRS-Config configured.

As an embodiment, IESRS-Config configures at least one SRS-ResourceSetId in one BWP, any two index sets in the at least one SRS-ResourceSetId are different, and the second index set is different from any one index set in the at least one SRS-ResourceSetId.

As an embodiment, when the first index belongs to the first index set, the first channel access procedure is a Type2A channel access procedure (Type 2 Achannelaccessprocedure).

As an embodiment, when the first index belongs to the first index set, the first channel access procedure is a Type2channel access procedure (Type 2 channelaccessprocedure).

As one embodiment, when the first index does not belong to the first index set, the first channel access procedure is a Type1channel access procedure (Type 1 channelaccessprocedure).

As an embodiment, when the second index belongs to the second index set, the second channel access procedure is a Type2A channel access procedure (Type 2 Achannelaccessprocedure).

As an embodiment, when the second index belongs to the second index set, the second channel access procedure is a Type2channel access procedure (Type 2 channelaccessprocedure).

As one embodiment, when the second index does not belong to the second index set, the second channel access procedure is a Type1channel access procedure (Type 1 channelaccessprocedure).

As an embodiment, when the first index belongs to the first index set, the first node switches (switches) a channel access procedure for the first sub-channel from a type 1 channel access procedure to a 2A channel access procedure.

As an embodiment, the first node switches (switch) the channel access procedure for the second sub-channel from a type 1 channel access procedure to a 2A channel access procedure when the second index belongs to the second index set.

As an embodiment, the type of the first channel access procedure is one of a first set of types, and the type of the second channel access procedure is one of the first set of types, the first set of types comprising at least two types of channel access procedures.

As an embodiment, the first set of types includes type 1 and type 2.

As an embodiment, the first set of types includes type 1 and type 2A.

As an embodiment, the first set of types includes type 1, type 2A, type 2B, and type 2C.

As one embodiment, the first set of types includes at least one of type 2A, type 2B, or type 2C and type 1.

Example 8

Embodiment 8 illustrates a schematic diagram of a first TCI state and a second TCI state according to an embodiment of the present application; as shown in fig. 8.

In embodiment 8, receiving third signaling indicating a first TCI state group comprising at least two TCI states; a first TCI state and a second TCI state are applied to the first sub-signal and the second sub-signal, respectively; the first TCI state and the second TCI state both belong to the first TCI state group; the first index depends on the position of the first TCI state in the first TCI state group, and the second index depends on the position of the second TCI state in the first TCI state group.

As an embodiment, the protocol layer to which the third signaling belongs includes a MAC layer.

As an embodiment, the third signaling comprises MACCE.

As an embodiment, the protocol layer to which the third signaling belongs includes a physical layer.

As an embodiment, the third signaling includes a downlink schedule.

As an embodiment, the third signaling includes a downlink DCI.

As an embodiment, the third signaling comprises DCI.

As an embodiment, the third signaling is one of DCIformat1_1 or DCIformat 1_2.

As an embodiment, the third signaling includes a second field, the second field in the third signaling indicating the first TCI state set.

As an embodiment, the second field includes DCI field Transmissionconfigurationindication.

As an embodiment, the second field includes a portion of bits of DCI field Transmissionconfigurationindication.

As an embodiment, the second field includes all bits of the DCI field Transmissionconfigurationindication.

As an embodiment, the second field comprises 0 bits when the parameters tci-PRESENTDCI are not configured.

As an embodiment, the second field comprises 3 bits when the parameters tci-PRESENTDCI are configured

As an example, when the parameter tci-PRESENTDCI-1-2 is not configured, the second field includes 0 bits.

As an embodiment, the number of bits comprised by the second field depends on the parameter tci-PRESENTDCI-1-2 when the parameter tci-PRESENTDCI-1-2 is configured.

As an embodiment, the second field comprises a number of bits of 1, 2 or 3 when the parameter tci-PRESENTDCI-1-2 is configured.

As an embodiment, the second field comprises 2,4 or 8 code points (codepoint).

As an embodiment, the second field comprises 8 code points.

As an embodiment, any one code point included in the second domain indicates a TCI state.

As an embodiment, any one code point included in the second domain indicates a pair of TCI states, and the pair of TCI states includes 2 TCI states.

As an embodiment, the TCI state indicated by the second domain is activated by one MACCE, and the number of TCI states activated by one MACCE is not greater than 8.

As an embodiment, the second field is used to indicate the first TCI state set.

As an embodiment, the second field is used to indicate the first TCI state.

As an embodiment, the second field is used to indicate the second TCI state.

As one embodiment, any TCI state in the first TCI state set is used for upstream.

As an embodiment, any TCI state in the first TCI state set is used to configure a reference signal used to determine uplink transmit spatial filters for PUSCH, PUCCH and SRS.

As one embodiment, any TCI state in the first TCI state set is used for both upstream and downstream.

As an embodiment, any TCI state in the first TCI state group is used to configure a DMRS for PDSCH, quasi co-location of DMRS and CSI-RS of PDCCH, and a reference signal for determining uplink transmission spatial filters of PUSCH, PUCCH and SRS.

As an embodiment, the presence of at least one TCI state in the first TCI state set is only used for downstream.

As an embodiment, at least one TCI state in the first TCI state set is only used for upstream.

As an embodiment, at least one TCI state in the first TCI state group is used to configure a reference signal for quasi co-location of DMRS of PDSCH, DMRS of PDCCH and CSI-RS.

As an embodiment, at least one TCI state in the first TCI state group is used to configure a reference signal used to determine uplink transmit spatial filters for PUSCH, PUCCH and SRS.

As one embodiment, all TCI states in the first TCI state group correspond to the same TCI code point (codepoint).

As an embodiment, the first TCI state group includes a number of TCI states equal to 2.

As an embodiment, the first TCI state group includes a number of TCI states greater than 2.

As an embodiment, all TCI states in the first TCI state group are arranged in sequence.

As an embodiment, the first TCI state is used for upstream.

As an embodiment, the first TCI state is used only for upstream.

As an embodiment, the first TCI state is used for both upstream and downstream.

As an embodiment, the first TCI state is a UL-TCIState.

As an embodiment, the first TCI state is one TCIState.

As an embodiment, the first TCI state is configured by a higher layer parameter dl-OrJoint-TCISTATELIST.

As an embodiment, the first TCI state is configured by a higher layer parameter ul-TCI-StateList.

As an embodiment, the second TCI state is used for upstream.

As an embodiment, the second TCI state is used only for upstream.

As an embodiment, the second TCI state is used for both upstream and downstream.

As an example, the second TCI state is UL-TCIState.

As an embodiment, the second TCI state is one TCIState.

As an embodiment, the second TCI state is configured by a higher layer parameter dl-OrJoint-TCISTATELIST.

As an embodiment, the second TCI state is configured by a higher layer parameter ul-TCI-StateList.

As an embodiment, the first TCI state is applied to the first SRS resource.

As an embodiment, the first TCI state is applied to the first SRS resource set.

As an embodiment, the first TCI state is applied to each SRS resource in the first set of SRS resources.

As an embodiment, the second TCI state is applied to the second SRS resource.

As an embodiment, the second TCI state is applied to the second SRS resource set.

As an embodiment, the second TCI state is applied to each SRS resource in the second set of SRS resources.

As one embodiment, the first TCI state indicates a first reference signal resource and the second TCI state indicates a second reference signal resource.

As an embodiment, the first TCI state indicates that QCLtype corresponding to the first reference signal resource is QCLTypeD.

As an embodiment, the second TCI state indicates that QCLtype corresponding to the second reference signal resource is QCLTypeD.

As an embodiment, the first reference signal resource is one of a CSI-RS resource, an SS/PBCH resource or an SRS resource.

As an embodiment, the second reference signal resource is one of a CSI-RS resource, an SS/PBCH resource or an SRS resource.

As an embodiment, the first reference signal resource is used to determine a spatial filter to transmit the first SRS resource.

As an embodiment, the second reference signal resource is used to determine a spatial filter to transmit the second SRS resource.

As an embodiment, the first node transmits SRS in the first SRS resource and receives or transmits reference signal in the first reference signal resource with the same spatial filter.

As an embodiment, the first node transmits SRS in the second SRS resource and receives or transmits reference signal in the second reference signal resource with the same spatial filter.

As one embodiment, the spatial filter of the first reference signal resource is used to determine the spatial filter of the perceived beam of the first channel access procedure; the spatial filter of the second reference signal resource is used to determine a spatial filter of a perceived beam of the second channel access procedure.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure and the spatial filter of the reference signal received or transmitted by the first node in the first reference signal resource are the same.

As an embodiment, the spatial filter of the perceived beam of the second channel access procedure and the spatial filter of the reference signal received or transmitted by the first node in the second reference signal resource are the same.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure covers the beam of the first reference signal resource and the spatial filter of the perceived beam of the second channel access procedure covers the beam of the second reference signal resource.

As an embodiment, the meaning of the spatial relationship of the first sub-signal and the first index of the sentence includes: a first reference signal is used to determine a spatial relationship of the first sub-signal, the first TCI state indicating the first reference signal resource, the first index being dependent on a position of the first TCI state in the first TCI state group.

As an embodiment, the meaning of the spatial relationship of the first sub-signal and the first index of the sentence includes: a first reference signal is used to determine spatial filters for the first SRS resources used to determine spatial relationships for the first sub-signals, the first TCI state indicates the first reference signal resources, and the first index depends on a position of the first TCI state in the first TCI state group.

As an embodiment, the meaning related to the spatial relationship of the second sub-signal and the second index of the sentence includes: a second reference signal is used to determine a spatial relationship of the second sub-signal, the second TCI state indicating the first reference signal resource, the second index being dependent on a position of the second TCI state in the first TCI state group.

As an embodiment, the meaning related to the spatial relationship of the second sub-signal and the second index of the sentence includes: a second reference signal is used to determine spatial filters for the second SRS resources used to determine spatial relationships for the second sub-signals, the second TCI state indicates the second reference signal resources, and the second index depends on a position of the second TCI state in the first TCI state group.

As one embodiment, the first TCI state is the i1 st TCI state in the first TCI state group, the first index being equal to the i1-1; the i1 is a positive integer not greater than the number of TCI states included in the first TCI state group.

As one embodiment, the second TCI state is the i2 nd TCI state in the first TCI state set, the second index is equal to the i2-1; the i2 is a positive integer not greater than the number of TCI states included in the first TCI state group.

As one embodiment, the first TCI state is an i1 st TCI state in the first TCI state group, the first index being equal to the i1; the i1 is a positive integer not greater than the number of TCI states included in the first TCI state group.

As one embodiment, the second TCI state is the i2 nd TCI state in the first TCI state set, the second index being equal to the i2; the i2 is a positive integer not greater than the number of TCI states included in the first TCI state group.

As an embodiment, the first TCI state is an i1 st TCI state in the first TCI state group, which is only used for uplink TCI states, the first index is equal to the i1-1; the i1 is a positive integer not greater than the number of TCI states included in the first TCI state group that are used only for upstream.

As an embodiment, the second TCI state is an i2 nd TCI state in the first TCI state group, which is only used for uplink TCI states, the second index is equal to the i2-1; the i2 is a positive integer not greater than the number of TCI states included in the first TCI state group that are used only for upstream.

As an embodiment, the first TCI state is an i1 st TCI state in the first TCI state group, which is only used for uplink TCI states, the first index is equal to the i1; the i1 is a positive integer not greater than the number of TCI states included in the first TCI state group that are used only for upstream.

As an embodiment, the second TCI state is an i2 nd TCI state of the first TCI state group used only for uplink TCI states, the second index is equal to the i2; the i2 is a positive integer not greater than the number of TCI states included in the first TCI state group that are used only for upstream.

Example 9

Embodiment 9 illustrates a schematic diagram of a first sub-signal and a second sub-signal according to one embodiment of the application; as shown in fig. 9.

In embodiment 9, whether the first and second sub-signals are transmitted in the first time domain resource block in the first sub-band is related to whether the first and second sub-signals carry the same transport block.

As an embodiment, the transport block is referred to as transport block.

As an embodiment, when at least one of the first channel access procedure and the second channel access procedure determines that the first sub-band is busy (busy), whether the first sub-signal or the second sub-signal is transmitted in the first time domain resource block in the first sub-band is related to whether the first sub-signal and the second sub-signal carry the same transport block.

As an embodiment, when at least one of the first channel access procedure and the second channel access procedure determines that the first sub-band cannot be used (unavailable) for performing transmission, whether the first sub-signal or the second sub-signal is transmitted in the first time domain resource block in the first sub-band is related to whether the first sub-signal and the second sub-signal carry the same transport block.

As an embodiment, if and only if at least one of the first channel access procedure and the second channel access procedure determines that the first sub-band is busy, whether the first sub-signal or the second sub-signal is transmitted in the first time domain resource block in the first sub-band is related to whether the first sub-signal and the second sub-signal carry the same transport block.

As an embodiment, if and only if at least one of the first channel access procedure and the second channel access procedure determines that the first sub-band cannot be used (unavailable) for performing a transmission, whether the first sub-signal or the second sub-signal is transmitted in the first time domain resource block in the first sub-band is related to whether the first sub-signal and the second sub-signal carry the same transport block.

As an embodiment, when the first and second sub-signals carry the same transport block, the first and second sub-signals are transmitted together or discarded together in the first time domain resource block in the first sub-band.

As one embodiment, when at least one of the first channel access procedure or the second channel access procedure determines that the first sub-band cannot be used to perform transmission and the first sub-signal and the second sub-signal carry the same transport block, the first sub-signal and the second sub-signal are discarded from transmission in the first time domain resource block in the first sub-band.

As one embodiment, when at least one of the first channel access procedure or the second channel access procedure determines that the first sub-band cannot be used to perform transmission and the first sub-signal and the second sub-signal carry different transport blocks, at least one of the first sub-signal and the second sub-signal is transmitted in the first time domain resource block in the first sub-band.

As one embodiment, when the first channel access procedure determines that the first sub-band cannot be used to perform transmission, the second channel access procedure determines that the first sub-band can be used to perform transmission, and the first sub-signal and the second sub-signal carry different transport blocks, the first sub-signal is discarded from transmission in the first time domain resource block in the first sub-band, and the second sub-signal is transmitted in the first time domain resource block in the first sub-band; when the first channel access procedure determines that the first sub-band can be used to perform transmission, the second channel access procedure determines that the first sub-band can not be used to perform transmission, and the first sub-signal and the second sub-signal carry different transmission blocks, the first sub-signal is transmitted in the first time domain resource block in the first sub-band, and the second sub-signal is abandoned from being transmitted in the first time domain resource block in the first sub-band.

As an embodiment, higher layer signaling is used to determine whether the first sub-signal and the second sub-signal belong to the same transport block.

As an embodiment, the first signaling is used to determine whether the first sub-signal and the second sub-signal belong to the same transport block.

As an embodiment, whether the first sub-signal and the second sub-signal belong to the same transport block and the number of layers of the first signal is related.

As an embodiment, when the number of layers of the first signal is greater than 4, the first sub-signal and the second sub-signal belong to different transport blocks; when the number of layers of the first signal is not greater than 4, the first sub-signal and the second sub-signal belong to the same transmission block.

As an embodiment, when the number of layers of the first signal is greater than 4, the first sub-signal and the second sub-signal belong to the same transport block.

Example 10

Embodiment 10 illustrates a schematic diagram of a first channel access procedure and a second channel access procedure according to one embodiment of the present application; as shown in fig. 10.

In embodiment 10, the coverage area of the perceived beam of the first channel access procedure is different from the coverage area of the perceived beam of the second channel access procedure.

As an embodiment, the coverage of the perceived beam of the first channel access procedure and the coverage of the perceived beam of the second channel access procedure only partially overlap.

As an embodiment, the coverage area of the perceived beam of the first channel access procedure and the coverage area of the perceived beam of the second channel access procedure do not overlap.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure is different from the spatial filter of the perceived beam of the second channel access procedure.

As an embodiment, the transmit beam of the first SRS resource is used to determine the perceived beam of the first channel access procedure and the transmit beam of the second SRS resource is used to determine the perceived beam of the second channel access procedure.

As an embodiment, the perceived beam of the first channel access procedure is the same as the transmission beam of the first SRS resource, and the perceived beam of the second channel access procedure is the same as the transmission beam of the second SRS resource.

As an embodiment, the spatial filter transmitting the first SRS resource is used for determining the spatial filter of the perceived beam of the first channel access procedure and the spatial filter transmitting the second SRS resource is used for determining the spatial filter of the perceived beam of the second channel access procedure.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure is the same as the spatial filter that transmits the first SRS resource, and the spatial filter of the perceived beam of the second channel access procedure is the same as the spatial filter that transmits the second SRS resource.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure covers the transmission beam of the first SRS resource, and the spatial filter of the perceived beam of the second channel access procedure covers the transmission beam of the second SRS resource.

Example 11

Embodiment 11 illustrates a schematic diagram of a first channel access procedure and a second channel access procedure according to another embodiment of the present application; as shown in fig. 11.

In embodiment 11, the spatial filter of the perceived beam of the first channel access procedure covers the transmit beam of the first sub-signal and the spatial filter of the perceived beam of the second channel access procedure covers the transmit beam of the second sub-signal.

As an embodiment, the transmit beam of the first sub-signal is used to determine the perceived beam of the first channel access procedure.

As an embodiment, the transmit beam of the second sub-signal is used to determine the perceived beam of the second channel access procedure.

As an embodiment, the perceived beam of the first channel access procedure is the same as the transmitted beam of the first sub-signal.

As an embodiment, the perceived beam of the second channel access procedure is the same as the transmitted beam of the second sub-signal.

As one embodiment, the spatial filter that transmits the first sub-signal is used to determine the spatial filter of the perceived beam of the first channel access procedure.

As an embodiment, the spatial filter that transmits the second sub-signal is used to determine the spatial filter of the perceived beam of the second channel access procedure.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure is the same as the spatial filter that transmitted the first sub-signal.

As an embodiment, the spatial filter of the perceived beam of the second channel access procedure is the same as the spatial filter that transmitted the second sub-signal.

Example 12

Embodiment 12 shows a flow chart of a channel access procedure according to an embodiment of the application; as shown in fig. 12.

In embodiment 12, the first channel access procedure may be described by the flowchart in fig. 12. The first node perceives the channel in a delay period (delay duration) on the first sub-band in step S1201; in step S1202, it is judged whether or not all slot periods within this delay period are Idle (Idle), if yes, proceeding to step S1203, otherwise proceeding to step S1201; setting a first counter in step S1203; in step S1204, it is determined whether the first counter is 0, if yes, the process proceeds to step S1205, otherwise the process proceeds to step S1207; in step S1205, whether or not to transmit is determined, and if yes, the process proceeds to step 1206; performing transmission on the first sub-band in step 1206; decrementing the first counter by 1 in step S1207; sensing channels in an additional sensing slot period (additional sensing slot duration) on the first sub-band in step S1208; in step S1209, it is determined whether this additional perceived slot period is Idle (Idle), and if so, the process returns to step S1204, otherwise, the process proceeds to step S1210; sensing channels for an additional delay period (additional defer duration) on said first sub-band in step S1210 until a non-idle is detected for the additional delay period or sensing slots (sensing slots) for the additional delay period are idle; in step S1211, it is determined whether all the perceived time slots within this additional delay period are Idle (Idle), and if so, the process returns to step S1204; otherwise, the process returns to step S1210.

As an embodiment, in embodiment 12, the first channel access procedure is one of a Type 1 uplink channel access procedure or a Type 1 channel access procedure for a frequency range 2-2.

As an embodiment, the specific definition of the Type1 uplink channel access procedure and the Type1 channel access procedure for the frequency range 2-2 is referred to in sections 4.1.1,4.2.1.1 and 4.4.1 of 3gpp ts37.213, respectively.

As an example, the specific definition of the delay period, the slot period, the additional perceived slot period and the additional delay period in fig. 12 is referred to as 3gpp ts37.213.

As an embodiment, a perceived time slot period is considered to be idle if the first node perceives the channel during said perceived time slot period to explicitly determine that the power detected during at least 4 μs during said perceived time slot period is below a first power threshold.

As an embodiment, the first power threshold is X _Thresh.

As an embodiment, the first power threshold is not greater than the maximum power threshold X _{Thresh_max}.

As an embodiment, the maximum power threshold X _{Thresh_max} is determined according to the method in 3gpp ts 37.213.

As an embodiment, the basic unit of sensing is a sensing time slot of 9 mus duration.

As an example, a delay period (delay duration) comprises a duration of 16 mus followed by m _p consecutive perceived slot periods; the m _p is a positive integer, and the m _p is related to a channel access priority class (CHANNEL ACCESS priority class).

As a sub-embodiment of the above embodiment, the 16 μs duration initially comprises an idle perceived time slot period.

As a sub-embodiment of the above embodiment, each perceived time slot is 9 μs.

As a sub-embodiment of the above embodiment, the m _p belongs to {1,2,3,7}.

As an example, a delay period (delay duration) is 8 mus and ends with a perceived time slot of 5 mus duration.

As an embodiment, the value to which the first counter is set is one of P alternative integers.

As a sub-embodiment of the above embodiment, the P belongs to {3,7,15,31,63,127,255,511,1023}.

As a sub-embodiment of the above embodiment, the P is a contention window (contention window) CWp of the channel access priority class P.

As a sub-embodiment of the above embodiment, the P alternative integers are 0,1,2, …, P-1.

As a sub-embodiment of the above embodiment, the first node randomly selects an alternative integer from the P alternative integers as the initial value set by the first counter.

As a sub-embodiment of the above embodiment, the probabilities that any one of the P candidate integers is selected as the initial value set by the first counter are all equal.

Example 13

Embodiment 13 shows a flow chart of a channel access procedure according to another embodiment of the application; as shown in fig. 13.

In embodiment 13, the first channel access procedure may be described by a flowchart in fig. 13. The first node in the present application performs a sensing channel for one sensing time on the first sub-band in step 1301; in step S1302, it is determined whether all the sensing slots within the sensing time are Idle (Idle), if yes, the process proceeds to step S1303, otherwise, the process returns to step S1301; in step S1303, transmission is performed on the first sub-band.

As an embodiment, in embodiment 13, the first channel access procedure is one of a Type 2A uplink channel access procedure, a Type 2B uplink channel access procedure, or a Type 2 channel access procedure for a frequency range 2-2.

As an embodiment, the Type 2A uplink channel access procedure, the Type 2B uplink channel access procedure, and the specific definition of the Type 2 channel access procedure for the frequency range 2-2 are referred to in sections 4.1.2.1,4.1.2.2,4.2.1.2.1,4.2.1.2.2 and 4.4.2 of 3gpp ts37.213, respectively.

As an embodiment, the sensing time is a sensing interval (SENSING INTERVAL).

As an example, the sensing time is a 25 μs sensing interval (SENSING INTERVAL).

As an embodiment, the sensing time is a sensing interval (SENSING INTERVAL) of at least 25 μs.

As an example, the sensing time is a 25 μs sensing interval comprising a 16 μs duration followed by a sensing time slot.

As an embodiment, the sensing time is a sensing interval of at least 25 mus, the sensing interval comprising a duration of 16 mus followed by a sensing time slot.

As a sub-embodiment of the above embodiment, the one 16 μs duration initially comprises one perceived time slot; if both perceived time slots included in the perceived time are perceived as idle, the perceived time is considered to be idle.

As an example, the sensing time is a duration of 16 mus.

As an example, the sensing time is a duration of at most 16 mus.

As an embodiment, the sensing time is a duration of 16 μs, the duration of 16 μs comprising a sensing time slot within the last 9 μs.

As an embodiment, the sensing time is a duration of 16 μs, the duration of 16 μs including a sensing time slot within the last 9 μs; if during the perceived time the channel is perceived to be idle for at least 5 mus and at least 4 mus of the 5 mus is within the perceived time slot, the channel is considered to be idle during the perceived time.

As an embodiment, the sensing time is a duration of at most 16 μs, the duration of 16 μs comprising a sensing time slot within the last 9 μs.

As an embodiment, the sensing time is a duration of at most 16 μs, the duration of 16 μs comprising a sensing time slot within the last 9 μs; if during the perceived time the channel is perceived to be idle for at least 5 mus and at least 4 mus of the 5 mus is within the perceived time slot, the channel is considered to be idle during the perceived time.

As an embodiment, the sensing time is a delay period.

As an embodiment, the sensing time is a delay period ending with a sensing time slot of duration 5 mus.

Example 14

Embodiment 14 illustrates a block diagram of a processing apparatus for use in a first node device according to an embodiment of the present application; as shown in fig. 14. In fig. 14, the processing means 1400 in the first node device comprises a first receiver 1401 and a first transmitter 1402.

As an embodiment, the first node device is a user equipment.

As an embodiment, the first node device is a relay node device.

As an example, the first receiver 1401 includes at least one of { antenna 452, receiver 454, reception processor 456, multi-antenna reception processor 458, controller/processor 459, memory 460, data source 467} in example 4.

As an example, the first transmitter 1402 includes at least one of { antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller/processor 459, memory 460, data source 467} in example 4.

A first receiver 1401 which receives first signaling;

a first transmitter 1402 performing a first channel access procedure and a second channel access procedure; transmitting at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or refraining from transmitting the first and second sub-signals in a first time domain resource block in the first sub-band;

In embodiment 14, the first signaling includes scheduling information of a first signal, and the first and second sub-signals include different layers of the first signal, respectively; whether the first sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is transmitted in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, a first SRS resource is used to determine a spatial relationship of the first sub-signal and a second SRS resource is used to determine a spatial relationship of the second sub-signal; the first SRS resource belongs to a first SRS resource set, and the second SRS resource belongs to a second SRS resource set.

As one embodiment, a second signaling is received, the second signaling being used to determine a first time window and a first set of indices;

As one embodiment, third signaling is received, the third signaling indicating a first set of TCI states, the first set of TCI states including at least two TCI states;

As an embodiment, whether the first and second sub-signals are transmitted in the first time domain resource block in the first sub-band is related to whether the first and second sub-signals carry the same transport block.

As an embodiment, the coverage area of the perceived beam of the first channel access procedure is different from the coverage area of the perceived beam of the second channel access procedure.

As an embodiment, the spatial filter of the perceived beam of the first channel access procedure covers the transmission beam of the first sub-signal, and the spatial filter of the perceived beam of the second channel access procedure covers the transmission beam of the second sub-signal.

Example 15

Embodiment 15 illustrates a block diagram of a processing apparatus for use in a second node device according to an embodiment of the present application; as shown in fig. 15. In fig. 15, the processing means 1500 in the second node device comprises a second transmitter 1501 and a second receiver 1502.

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

As an embodiment, the second node device is a user equipment.

As an embodiment, the second node device is a relay node device.

As an example, the second transmitter 1501 includes at least one of { antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, memory 476} in example 4.

As an example, the second receiver 1502 includes at least one of { antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller/processor 475, memory 476} in example 4.

A second transmitter 1501 transmitting the first signaling;

a second receiver 1502 that receives at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or that discards the first and second sub-signals in a first time domain resource block in the first sub-band;

In embodiment 15, the first signaling includes scheduling information of a first signal, and the first and second sub-signals include different layers of the first signal, respectively; whether the first sub-signal is received in the first time domain resource block in the first sub-band depends on the first channel access procedure, and whether the second sub-signal is received in the first time domain resource block in the first sub-band depends on the second channel access procedure.

As an embodiment, whether the first and second sub-signals are received in the first time domain resource block in the first sub-band is related to whether the first and second sub-signals carry the same transport block.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The user equipment, the terminal and the UE in the application comprise, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircrafts, mini-planes, mobile phones, tablet computers, notebooks, vehicle-mounted Communication equipment, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (MACHINE TYPE Communication) terminals, eMTC (ENHANCED MTC ) terminals, data cards, network cards, vehicle-mounted Communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless Communication equipment. The base station or system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (TRANSMITTER RECEIVER Point, transmission/reception node), and other wireless communication devices.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any changes and modifications made based on the embodiments described in the specification should be considered obvious and within the scope of the present application if similar partial or full technical effects can be obtained.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, wherein a first SRS resource is used to determine a spatial relationship of the first sub-signal and a second SRS resource is used to determine a spatial relationship of the second sub-signal; the first SRS resource belongs to a first SRS resource set, and the second SRS resource belongs to a second SRS resource set.

3. The first node according to claim 1 or 2, comprising:

4. A first node according to claim 3, comprising:

5. The first node according to any of claims 1-4, characterized in that whether the first and second sub-signals are transmitted in the first time domain resource block in the first sub-band and whether the first and second sub-signals carry the same transport block.

6. The first node according to any of claims 1 to 5, characterized in that the coverage area of the perceived beam of the first channel access procedure is different from the coverage area of the perceived beam of the second channel access procedure.

7. The first node according to any of claims 1-6, wherein the spatial filter of the perceived beam of the first channel access procedure covers the transmit beam of the first sub-signal and the spatial filter of the perceived beam of the second channel access procedure covers the transmit beam of the second sub-signal.

8. A second node for wireless communication, comprising:

A first transmitter that transmits a first signaling including scheduling information of a first signal, the first and second sub-signals respectively including different layers of the first signal;

a first receiver that receives at least one of the first and second sub-signals in a first time domain resource block in a first sub-band or that discards the first and second sub-signals in the first time domain resource block in the first sub-band;

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

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