CN116938400A

CN116938400A - Method and apparatus in a node for wireless communication

Info

Publication number: CN116938400A
Application number: CN202210323924.XA
Authority: CN
Inventors: 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-10-24
Also published as: WO2023185522A1

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node receives the first signaling, the second signaling, and the first signal. The first signaling indicates a first set of TCI states, the first set of TCI states including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first set of TCI states and the second signaling are used together to determine time domain resources occupied by the first signal. The method enables the transmission of the data channel to be matched with the indication of the TCI state, improves the transmission reliability and saves the signaling overhead.

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 transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network.

Background

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. When a plurality of antennas belong to a plurality of TRP (Transmitter Receiver Point, transmitting and receiving node)/panel (antenna panel), an additional diversity gain can be obtained by using a spatial difference between different TRP/panels. In NRR (release) 16 and R17, multi-TRP based transmission is introduced to enhance the transmission quality of data and control channels.

The beams formed by multi-antenna beamforming are generally relatively narrow, and the beams of both communicating parties need to be aligned for effective communication. Starting from NR 15, a beam management mechanism is employed for beam selection, updating, and indication between communicating parties to achieve performance gains from multiple antennas. Considering that in many cases, the control channel and the data channel may use the same beam, and that there is channel reciprocity between the uplink and downlink channels in many application scenarios, a technique (unified TCI framework) of using physical layer signaling to update the beam of the control channel and the data channel simultaneously in NRR17 has been adopted, and in scenarios where there is uplink and downlink channel reciprocity, the beam of the uplink and downlink may be updated simultaneously with physical layer signaling.

Disclosure of Invention

In NRR18 and its subsequent versions, the multi-TRP/panel based transmission scheme and unified TCI framework will continue to evolve. The extension of unified TCI framework for R17 has been agreed in the 3GPP RAN (Radio Access Network ) #94e conference to support indicating multiple downlink and uplink TCI (Transmission configuration Indicator) states (including but not limited to multi-TRP scenarios) as one direction of investigation for R18. The applicant has found through research that when unified TCI framework supports the indication of multiple downstream and upstream TCI states, what affects the transmission of data channels is a problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that although the above description uses cellular networks and unified TCI framework as examples, the present application is also applicable to other scenarios such as Sidelink (sidlink) transmission and TCI indication frame of R15/R16, and achieves technical effects similar to those in cellular networks and unified TCI framework. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to cellular network, sidelink, unified TCI framework, and TCI indication frame for R15/R16) also helps to reduce hardware complexity and cost. Embodiments in a first node of the application and features in embodiments may be applied to a second node and vice versa 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 (terminalogy) 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 the definition of the specification protocol of IEEE (Institute of 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 and a second signaling;

receiving a first signal;

wherein the first signaling indicates a first set of TCI states, the first set of TCI states including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first set of TCI states and the second signaling are used together to determine time domain resources occupied by the first signal.

As one embodiment, the problems to be solved by the present application include: when a physical layer signaling can indicate single or multiple TCI states, there is some impact on the transmission of the data channel. In the above method, the number of TCI states included in the first TCI state group indicated by the first signaling is used to determine time domain resources occupied by the first signal, which solves this problem.

As one embodiment, the features of the above method include: the first signaling is a physical layer signaling, and the first TCI state group indicated by the first signaling includes one or two TCI states; at least one TCI state of the first signaling indication is applied to the first signal, the first set of TCI states comprising one or two TCI states being used to determine time domain resources occupied by the first signal.

As one example, the benefits of the above method include: and adjusting time domain resources occupied by the first signal according to the number of TCI states indicated by the first signaling, so that the transmission of the first signaling is matched with the indication of the first signaling, and the transmission reliability of the first signal is improved.

As one example, the benefits of the above method include: dynamic switching between single beam/TRP based and multi-beam/TRP based transmissions is supported.

As one example, the benefits of the above method include: the physical layer signaling indicating the TCI state is utilized to flexibly indicate the switching between the single beam/TRP-based transmission and the multi-beam/TRP-based transmission, thereby saving signaling overhead.

According to an aspect of the application, the second signaling indicates a first set of symbols, the first set of TCI states comprising the number of TCI states and the first set of symbols together being used to determine the time domain resources occupied by the first signal.

According to an aspect of the application, it is characterized in that said number of TCI states comprised by said first set of TCI states and said second signaling are jointly used to determine said time domain resources occupied by said first signal when each condition of a first set of conditions is fulfilled; the first set of conditions includes at least one condition.

According to an aspect of the application, it is characterized in that whether each condition of said first set of conditions is fulfilled is used for determining whether said number of TCI states comprised by said first set of TCI states is used for determining said time domain resources occupied by said first signal.

According to one aspect of the present application, the first condition set includes a first condition including: a first higher layer parameter is configured and the value of the first higher layer parameter belongs to a first set of parameter values; the first set of parameter values includes at least one parameter value.

According to one aspect of the application, the first set of conditions includes a second condition including: the format of the second signaling belongs to the first set of formats.

According to one aspect of the application, the format of the second signaling is used to determine whether only one TCI state of the first set of TCI states is applied to the first signal or both TCI states of the first set of TCI states are applied to the first signal when the number of TCI states comprised by the first set of TCI states is equal to 2.

According to an aspect of the application, the first node comprises a user equipment.

According to an aspect of the application, the first node comprises a relay node.

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 and a second signaling;

transmitting a first signal;

According to an aspect of the application, the second node is a base station.

According to an aspect of the application, the second node is a user equipment.

According to an aspect of the application, the second node is a relay node.

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

a first processor that receives the first signaling, the second signaling, and the first signal;

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

a second processor that transmits the first signaling, the second signaling and the first signal;

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

the time domain resources occupied by the data channels are adjusted according to the number of TCI states indicated by the physical layer signaling, so that the transmission of the data channels is matched with the indication of the TCI states, and the transmission reliability is improved.

Dynamic switching between single beam/TRP based and multi-beam/TRP based transmissions is supported.

The physical layer signaling indicating the TCI state is utilized to flexibly indicate the switching between the single beam/TRP-based transmission and the multi-beam/TRP-based transmission, thereby saving signaling overhead.

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, a second signaling and a first signal 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 at least one TCI state in a first TCI state group being applied to a first signal according to an embodiment of the application;

FIG. 7 shows a schematic diagram of at least one TCI state in a first TCI state group being applied to a first signal in accordance with an embodiment of the application;

fig. 8 is a schematic diagram illustrating a number of TCI states included in a first TCI state group and a first symbol group being used together to determine time domain resources occupied by a first signal according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating a number of TCI states included in a first TCI state group and a first symbol group being used together to determine time domain resources occupied by a first signal according to an embodiment of the present application;

Fig. 10 is a schematic diagram illustrating a number of TCI states included in a first TCI state group, a format of a second signaling and a first symbol group being used together to determine time domain resources occupied by a first signal according to an embodiment of the present application;

FIG. 11 illustrates a schematic diagram of a number of TCI states included in a first set of TCI states and second signaling being used together to determine time domain resources occupied by a first signal when each condition in the first set of conditions is satisfied in accordance with one embodiment of the present application;

FIG. 12 shows a schematic diagram of a first set of conditions including a first condition according to one embodiment of the application;

FIG. 13 shows a schematic diagram of a first set of conditions including a first condition according to one embodiment of the application;

FIG. 14 shows a schematic diagram of a first set of conditions including a first condition according to one embodiment of the application;

FIG. 15 shows a schematic diagram of a first set of conditions including a first condition according to one embodiment of the application;

FIG. 16 shows a schematic diagram of a first set of conditions including a second condition according to one embodiment of the application;

FIG. 17 shows a schematic diagram of a format of second signaling being used to determine whether only one TCI state in a first TCI state group is applied to a first signal or both TCI states in the first TCI state group are applied to the first signal when the first TCI state group includes a number of TCI states equal to 2 in accordance with an embodiment of the application;

Fig. 18 shows a block diagram of a processing arrangement for use in a first node device according to an embodiment of the application;

fig. 19 shows a block diagram of a processing arrangement for use in a second node device 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, a second signaling and a first signal 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 first signaling and second signaling in step 101; a first signal is received in step 102. Wherein the first signaling indicates a first set of TCI states, the first set of TCI states including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first set of TCI states and the second signaling are used together to determine time domain resources occupied by the first signal.

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

As an embodiment, the first signaling comprises dynamic signaling.

As an embodiment, the first signaling comprises layer 1 (L1) signaling.

As an embodiment, the first signaling includes DCI (Downlink Control Information ).

As an embodiment, the first signaling is a DCI.

As an embodiment, the first signaling includes DCI for a DownLink Grant (DownLink Grant).

As an example, the Format (Format) of the first signaling belongs to one of Format 1_0, format 1_1 or Format 1_2.

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

As an embodiment, the second signaling comprises dynamic signaling.

As an embodiment, the second signaling comprises layer 1 (L1) signaling.

As an embodiment, the second signaling comprises DCI.

As an embodiment, the second signaling is a DCI.

As an embodiment, the second signaling includes DCI for a DownLink Grant (DownLink Grant).

As an example, the Format (Format) of the second signaling belongs to one of Format 1_0, format 1_1 or Format 1_2.

As an embodiment, the first signaling and the second signaling are two different DCIs, respectively.

As an embodiment, the format of the first signaling is different from the format of the second signaling.

As an embodiment, the second signaling is later in the time domain than the first signaling.

As an embodiment, the first signaling, the second signaling and the first signal belong to the same Carrier (Carrier).

As an embodiment, the first signaling, the second signaling and the first signal belong to the same BWP (BandWidth Part).

As an embodiment, the first signaling, the second signaling and the first signal belong to the same cell.

As an embodiment, the first signaling and the second signaling belong to different carriers.

As an embodiment, the first signaling and the second signaling belong to different cells.

As an embodiment, the first signaling and the second signaling belong to different BWP.

As an embodiment, the first signaling and the first signal belong to different carriers.

As an embodiment, the first signaling and the first signal belong to different cells.

As an embodiment, the first signaling and the first signal belong to different BWP.

As an embodiment, the first signaling is used to determine a target time unit, the first signal being not earlier than the target time unit.

As an embodiment, the first signaling is used to determine a target time unit, and the start time of the first signal is not earlier than the start time of the target time unit.

As an embodiment, the target time unit is a slot.

As an embodiment, the target time unit is a sub-frame.

As an embodiment, the target time unit is a symbol.

As an embodiment, the target time unit is a subslot.

As an embodiment, the target time unit comprises a positive integer number of consecutive symbols.

As an embodiment, the second signaling is not earlier than the target time unit.

As an embodiment, the start time of the second signaling is not earlier than the start time of the target time unit.

As an embodiment, the second signaling is earlier than the target time unit.

As an embodiment, the start time of the second signaling is earlier than the start time of the target time unit.

As an embodiment, the first signaling indicates a code point (codepoint) of a DCI domain Transmission Configuration Indication (TCI) corresponding to the first TCI state group.

As one embodiment, the first signaling indicates a first TCI code point, the first TCI code point indicating the first TCI state set.

As one embodiment, the first TCI state set includes at least one TCI (Transmission configuration Indicator) state (state).

As an embodiment, the first TCI state set includes one or two TCI states.

As an embodiment, the first TCI state group comprises the number of TCI states equal to 1 or 2.

As an embodiment, the first TCI state set includes only one TCI state.

As one embodiment, the first TCI state set includes only one TCI state; the first TCI code point indicates the one TCI state.

As one embodiment, the first TCI state set includes two TCI states.

As one embodiment, the first TCI state set includes two TCI states; the first TCI code point indicates the two TCI states in turn.

As an embodiment, the first TCI state set comprises only one TCI state, which is applied to the first signal.

As an embodiment, the first TCI state set comprises two TCI states, at least one of which is applied to the first signal.

As a sub-embodiment of the above embodiment, both TCI states are applied to the first signal.

As a sub-embodiment of the above embodiment, only one of the two TCI states is applied to the first signal.

As an embodiment, the first TCI state set comprises two TCI states, both TCI states being applied to the first signal.

As a sub-embodiment of the above embodiment, the first signal includes a first sub-signal and a second sub-signal, and the two TCI states are applied to the first sub-signal and the second sub-signal, respectively.

As a sub-embodiment of the above embodiment, the first signal includes a first sub-signal and a second sub-signal, and the two TCI states are applied to the first sub-signal and the second sub-signal, respectively; the first sub-signal and the second sub-signal are orthogonal to each other in the time domain.

As one embodiment, each TCI state in the first set of TCI states is applied to the first signal.

As an embodiment, at least one TCI state of the first set of TCI states is applied to the first signal in response to the act receiving first signaling.

As an embodiment, a first signaling is received with the act, at least one TCI state of the first set of TCI states being applied to the first signal.

As one embodiment, the first signaling indicates a TCI state of the first signal.

As an embodiment, at least one TCI state of the first signaling indication is applied to the first signal.

As an embodiment, the first signaling indicates only one TCI state, which is applied to the first signal.

As an embodiment, the first signaling indicates two TCI states, both of which are applied to the first signal.

As an embodiment, the first signaling indicates two TCI states, only one of which is applied to the first signal.

As a sub-embodiment of the above embodiment, a default one of the two TCI states is applied to the first signal.

As a sub-embodiment of the above embodiment, the two TCI states are arranged in sequence; the first signal is applied to the first TCI state of the two TCI states.

As a sub-embodiment of the above embodiment, the first TCI code point indicates the two TCI states in turn; the first signal is applied to the first TCI state of the two TCI states.

As a sub-embodiment of the above embodiment, a TCI state of the two TCI states, the corresponding TCI-StateId smaller, is applied to the first signal.

As an embodiment, at least one TCI state of the first set of TCI states is applied to the second signaling.

As an embodiment, the first signaling indicates a TCI state of the second signaling.

As an embodiment, at least one TCI state indicated by the first signaling is applied to the second signaling.

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

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

As an embodiment, the first signal comprises a radio frequency signal.

As an embodiment, the first signal carries a TB (Transport Block).

As an embodiment, the first signal carries a CBG (Code Block Group).

As an embodiment, the first signal carries at least one TB.

As an embodiment, the first signal carries at least one CBG.

As an embodiment, the second signaling indicates frequency domain resources, MCS, HARQ process number, RV and NDI of the first signal.

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

As an embodiment, the second signaling is used to schedule PDSCH (Physical Downlink Shared Channel ) carrying the first signal.

As an embodiment, the meaning that the sentence that the first TCI state group includes the number of TCI states and the second signaling are used together to determine the time domain resource occupied by the first signal includes: the first set of TCI states includes a number of TCI states and the second signaling together are used to determine a number of PDSCH transmission opportunities (transmission occasion) corresponding to the first signal.

As an embodiment, the first signal corresponds to one PDSCH transmission opportunity or two PDSCH transmission opportunities.

As an embodiment, the format of the second signaling is used to determine the time domain resources occupied by the first signal.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the format of the second signaling are together used to determine the time domain resources occupied by the first signal.

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 (New Radio), 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)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data 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 switching (Packet switching) services.

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

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

As one embodiment, the wireless link between the UE201 and the gNB203 comprises a cellular network link.

As an embodiment, the sender of the first signaling and the second signaling comprises the gNB203.

As an embodiment, the recipients of the first signaling and the second signaling comprise the UE201.

As an embodiment, the sender of the first signal comprises the gNB203.

As an embodiment, the receiver of the first signal comprises the UE201.

As an embodiment, the UE201 supports unified TCI framework.

As an embodiment, the UE201 supports unified TCI framework which indicates multiple downlink and uplink TCI states.

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 (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first communication node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).

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

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

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

As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

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

As an embodiment, the second signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

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.

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 receives at least the first signaling and the second signaling; the first signal is received.

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 the first signaling and the second signaling; the first signal is received.

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 transmits at least the first signaling and the second signaling; and transmitting the first signal.

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 the first signaling and the second signaling; and transmitting the first signal.

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 embodiment, 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 for receiving the first signaling and the second signaling; { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} at least one of being used to transmit the first signaling and the second signaling.

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 signal; { 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 signal.

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 second node U1 and the first node U2 are communication nodes transmitting over the air interface. In fig. 5, the steps in blocks F51 and F52, respectively, are optional.

For the second node U1, sending a first signaling in step S511; transmitting a third signal in step S5101; receiving a second signal in step S5102; transmitting a second signaling in step S512; the first signal is transmitted in step S513.

For the first node U2, receiving first signaling in step S521; receiving a third signal in step S5201; transmitting a second signal in step S5202; receiving a second signaling in step S522; the first signal is received in step S523.

In embodiment 5, the first signaling indicates a first TCI state group, the first TCI state group including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first TCI state group and the second signaling are used together by the first node U2 to determine a time domain resource occupied by the first signal.

As an embodiment, the first node U2 is the first node in the present application.

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

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a radio interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between a relay node device and a user device.

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between user equipment and user equipment.

As an embodiment, the second node U1 is a serving cell maintenance base station of the first node U2.

As an embodiment, the first signaling is transmitted in a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).

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

As an embodiment, the second signaling is transmitted in a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).

As an embodiment, the second signaling is transmitted in the PDCCH.

As an embodiment, the first signaling and the second signaling are transmitted in two different PDCCHs, respectively.

As an embodiment, the first signal is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).

As one embodiment, the first signal is transmitted in PDSCH.

As an embodiment, the steps in block F52 in fig. 5 exist, and the method in the first node used for wireless communication includes: transmitting a second signal; wherein the second signal comprises HARQ-ACK (Hybrid Automatic Repeat request-Acknowledgement) for the first signaling, the first signaling being used to determine time domain resources occupied by the second signal, the time domain resources occupied by the second signal being used to determine a target time unit; the first signal is not earlier than the target time unit.

As one embodiment, the method in the second node used for wireless communication includes: the second signal is received.

As an embodiment, the steps in blocks F52 and F51 in fig. 5 exist, and the method in the first node used for wireless communication includes: receiving a third signal; transmitting a second signal; wherein the third signal is transmitted on a first PDSCH, the first signaling being used to schedule the first PDSCH, the third signal carrying a first block of bits; the second signal includes HARQ-ACKs for the first PDSCH; the first signaling indicates time domain resources occupied by the third signal, and the first signaling indicates a time interval between the time domain resources occupied by the second signal and the time domain resources occupied by the third signal; the time domain resources occupied by the second signal are used to determine a target time unit; the first signal is not earlier than the target time unit.

As one embodiment, the method in the second node used for wireless communication includes: transmitting the third signal; the second signal is received.

As an embodiment, the start time of the first signal is not earlier than the start time of the target time unit.

As an embodiment, the target time unit is a first time unit after at least a first interval after a last symbol of the second signal.

As an embodiment, the target time unit is a first time unit after a first interval after a last symbol of the second signal.

As an embodiment, the target time unit is a first time unit after a last symbol of the second signal and not less than a first interval between the target time unit and the last symbol of the second signal.

As an embodiment, the second signal comprises a baseband signal.

As an embodiment, the second signal comprises a wireless signal.

As an embodiment, the second signal comprises a radio frequency signal.

As an embodiment, the second signal includes UCI (Uplink control information ).

As an embodiment, the first signaling is earlier in the time domain than the second signal.

As an embodiment, the second signal is earlier in the time domain than the second signaling.

As an embodiment, the second signal is later in the time domain than the second signaling.

As an embodiment, the HARQ-ACK for the first signaling indicates whether the first signaling was received correctly.

As an embodiment, the HARQ-ACK for the first signaling indicates that the first signaling was received correctly.

As an embodiment, the first signaling indicates time domain resources occupied by the second signal.

As an embodiment, the first signaling indicates a time interval between time domain resources occupied by the second signal and time domain resources occupied by the first signaling.

As an embodiment, the first signaling indicates a time interval between a time slot occupied by the second signal and a time slot occupied by the first signaling.

As an embodiment, the second signal is transmitted on PUSCH (Physical Uplink Shared CHannel ).

As an embodiment, the second signal is transmitted on PUCCH (Physical Uplink Control Channel ).

As an embodiment, the first signaling indicates a time interval between a time slot occupied by the second signal and a time slot occupied by the third signal.

As an embodiment, the second signal indicates whether the first bit block is received correctly.

As an embodiment, the second signal indicates that the first bit block was received correctly.

As an embodiment, the third signal comprises a baseband signal.

As an embodiment, the third signal comprises a wireless signal.

As an embodiment, the third signal comprises a radio frequency signal.

As an embodiment, the first bit block includes a TB (transport block).

As an embodiment, the first bit Block includes a CBG (Code Block Group).

As an embodiment, the second signal is later in the time domain than the third signal.

As an embodiment, the third signal is earlier in the time domain than the second signaling.

As an embodiment, the third signal is later in the time domain than the second signaling.

As an embodiment, the first signaling includes scheduling information of the third signal, the scheduling information including one or more of time domain resources, frequency domain resources, MCS (Modulation and Coding Scheme), DMRS (DeModulation Reference Signals) ports (ports), HARQ process numbers (process numbers), RV (Redundancy version), or NDI (New data indicator).

As an embodiment, the HARQ-ACK for the first PDSCH includes: HARQ-ACK for the third signal.

As an embodiment, the HARQ-ACK for the first PDSCH includes: HARQ-ACK for the first bit block.

As an embodiment, the HARQ-ACK for the first PDSCH indicates whether the first block of bits was received correctly.

As one embodiment, the HARQ-ACK for the first PDSCH indicates that the first bit block was received correctly.

As an embodiment, the time unit is a slot.

As an embodiment, the time unit is a sub-frame.

As an embodiment, the time unit is a symbol.

As an embodiment, the time unit is a subslot.

As an embodiment, the time unit comprises a positive integer number of consecutive symbols.

As an embodiment, the HARQ-ACK includes an ACK.

As an embodiment, the HARQ-ACK comprises a NACK (Negative ACKnowledgement ).

As an embodiment, the HARQ-ACK includes an ACK or NACK.

As an embodiment, the first interval is configured for RRC signaling.

As an embodiment, the first interval is fixed.

As an embodiment, the first interval is a non-negative real number.

As an embodiment, the first interval is a positive integer.

As an embodiment, the unit of the first interval is a slot (slot).

As an embodiment, the unit of the first interval is milliseconds (ms).

As an embodiment, the unit of the first interval is a symbol.

As one embodiment, the first interval is B1 symbols, and B1 is a non-negative integer.

As a sub-embodiment of the above embodiment, B1 is a positive integer.

As a sub-embodiment of the above embodiment, the B1 is configured with higher layer parameters.

As a sub-embodiment of the above embodiment, the B1 is configured with RRC parameters.

As a sub-embodiment of the above embodiment, the B1 is configured by a higher layer parameter, and the name of the higher layer parameter configuring the B1 includes "BeamAppTime".

Example 6

Embodiment 6 illustrates a schematic diagram in which at least one TCI state of the first TCI state group is applied to the first signal according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, the first TCI state group includes a first TCI state, the first TCI state being applied to the first signal; the first TCI state indicates a first reference signal resource.

As one embodiment, the first TCI state set includes only the first TCI state.

As one embodiment, the first TCI state set includes two TCI states, the first TCI state being one of the two TCI states; only the first TCI state of the two TCI states is applied to the first signal.

As a sub-embodiment of the above embodiment, the first TCI state is a default one of the two TCI states.

As a sub-embodiment of the above embodiment, the two TCI states are arranged in sequence; the first TCI state is the one of the two TCI states that is first ranked.

As a sub-embodiment of the above embodiment, the first TCI code point indicates the two TCI states in turn; the first TCI state is the one of the two TCI states that is first ranked.

As a sub-embodiment of the above embodiment, the first TCI state is the smaller of the two TCI states corresponding to TCI-StateId.

As one embodiment, the TCI state of the first signal is the first TCI state.

As one embodiment, the TCI state of the first signal includes the first TCI state.

As one embodiment, the DMRS of the PDSCH carrying the first signal and the first reference signal resource quasi co-located (quasi co-located).

As an embodiment, the DMRS of the PDSCH carrying the first signal and the first reference signal resource are Quasi Co-located and the corresponding QCL (Quasi Co-located) type includes TypeD.

As an embodiment, the DMRS of the first signal and the first reference signal resource are quasi co-located.

As an embodiment, the DMRS of the first signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As an embodiment, the antenna port transmitting the first signal and the first reference signal resource are quasi co-located.

As one embodiment, the antenna port transmitting the first signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As an embodiment, the first node is able to infer the large-scale characteristics of the channel experienced by the DMRS carrying the PDSCH of the first signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource.

As an embodiment, the first node is capable of deducing the large-scale characteristics of the channel experienced by the DMRS of the first signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource.

As an embodiment, the first node is capable of deducing the large scale characteristics of the channel experienced by the first signal from the large scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource.

As one embodiment, the first signal includes a first sub-signal, and the TCI state of the first sub-signal is the first TCI state.

As an embodiment, the first signal includes a first sub-signal, and the DMRS of the PDSCH carrying the first sub-signal and the first reference signal resource quasi co-located (quasi co-located).

As an embodiment, the first signal includes a first sub-signal, the DMRS of the PDSCH carrying the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As an embodiment, the first signal includes a first sub-signal, and the DMRS of the first sub-signal and the first reference signal resource quasi co-located (quasi co-located).

As an embodiment, the first signal includes a first sub-signal, the DMRS of the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As an embodiment, the first signal includes a first sub-signal, and an antenna port transmitting the first sub-signal and the first reference signal resource are quasi co-located.

As an embodiment, the first signal includes a first sub-signal, an antenna port transmitting the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As an embodiment, the first signal comprises a first sub-signal, and the first node is capable of deducing the large-scale characteristics of the channel experienced by the DMRS of the PDSCH carrying the first sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource.

As an embodiment, the first signal comprises a first sub-signal, and the first node is capable of deducing the large-scale characteristics of the channel experienced by the DMRS of the first sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource.

As an embodiment, the first signal comprises a first sub-signal, the first node being able to infer from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource the large-scale characteristics of the channel experienced by the first sub-signal.

As one embodiment, the large scale characteristics include one or more of delay spread (delay spread), doppler spread (Doppler shift), doppler shift (Doppler shift), average delay (average delay), or spatial reception parameter (Spatial Rx parameter).

As an embodiment, the first TCI state indicates a QCL type corresponding to the first reference signal resource.

As an embodiment, the first TCI state indicates that the QCL type corresponding to the first reference signal resource includes TypeD.

As an embodiment, the first Reference Signal resource includes a CSI-RS (Channel State Information-Reference Signal) resource (resource).

As an embodiment, the first reference signal resource includes SS/PBCH block (Synchronisation Signal/physical broadcast channel Block, synchronization signal/physical broadcast channel block) resource.

As an embodiment, quasi co-location with a reference signal resource means that: and quasi co-locating the reference signal transmitted in the one reference signal resource.

As an embodiment, quasi co-location with a reference signal resource means that: quasi co-located with a reference signal port of the one reference signal resource.

As an embodiment, quasi co-location with a reference signal resource means that: and antenna ports of the one reference signal resource are quasi co-located.

Example 7

Embodiment 7 illustrates a schematic diagram in which at least one TCI state of the first TCI state group is applied to the first signal according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first TCI state group includes a first TCI state and a second TCI state, both the first TCI state and the second TCI state being applied to the first signal; the first signal includes a first sub-signal to which the first TCI state is applied and a second sub-signal to which the second TCI state is applied; the first TCI state indicates a first reference signal resource and the second TCI state indicates a second reference signal resource.

As one embodiment, the TCI state of the first signal includes the first TCI state and the second TCI state.

As an embodiment, the TCI state of the first sub-signal comprises the first TCI state and the TCI state of the second sub-signal comprises the second TCI state.

As one embodiment, the TCI state of the first signal is the first TCI state and the second TCI state.

As an embodiment, the TCI state of the first sub-signal is the first TCI state and the TCI state of the second sub-signal is the second TCI state.

As one embodiment, the DMRS of the PDSCH carrying the first sub-signal and the first reference signal resource quasi co-located (quasi co-located); the DMRS of the PDSCH carrying the second sub-signal is quasi co-located with the second reference signal resource.

As an embodiment, the DMRS of the PDSCH carrying the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD; the DMRS of the PDSCH carrying the second sub-signal is quasi co-located with the second reference signal resource and the corresponding QCL type includes TypeD.

As an embodiment, the DMRS of the first sub-signal and the first reference signal resource quasi co-located (quasi co-located); the DMRS of the second sub-signal and the second reference signal resource are quasi co-located.

As an embodiment, the DMRS of the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD; the DMRS of the second sub-signal and the second reference signal resource are quasi co-located and the corresponding QCL type includes TypeD.

As one embodiment, the antenna port transmitting the first sub-signal is quasi co-located with the first reference signal resource; and the antenna port for transmitting the second sub-signal and the second reference signal resource are quasi co-located.

As one embodiment, the antenna port transmitting the first sub-signal and the first reference signal resource are quasi co-located and the corresponding QCL type includes TypeD; and the antenna port for transmitting the second sub-signal and the second reference signal resource are quasi co-located and the corresponding QCL type comprises typeD.

As an embodiment, the first node is capable of deducing from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource the large-scale characteristics of the channel experienced by the DMRS of the PDSCH carrying the first sub-signal; the first node is capable of inferring, from the large-scale characteristics of the channel experienced by the reference signal transmitted in the second reference signal resource, the large-scale characteristics of the channel experienced by the DMRS of the PDSCH carrying the second sub-signal.

As an embodiment, the first node is capable of deducing the large-scale characteristics of the channel experienced by the DMRS of the first sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource; the first node is capable of inferring the large-scale characteristics of the channel experienced by the DMRS of the second sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the second reference signal resource.

As an embodiment, the first node is capable of deducing the large-scale characteristics of the channel experienced by the first sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the first reference signal resource; the first node is capable of inferring the large-scale characteristics of the channel experienced by the second sub-signal from the large-scale characteristics of the channel experienced by the reference signal transmitted in the second reference signal resource.

As one embodiment, the large scale characteristic includes one or more of delay spread, doppler shift, average delay, or spatial reception parameters.

As an embodiment, the first TCI state indicates a QCL type corresponding to the first reference signal resource, and the second TCI state indicates a QCL type corresponding to the second reference signal resource.

As an embodiment, the first TCI state indicates that the QCL type corresponding to the first reference signal resource includes TypeD; the second TCI state indicates that the QCL type corresponding to the second reference signal resource includes TypeD.

As an embodiment, the first reference signal resource comprises a CSI-RS resource.

As an embodiment, the first reference signal resource comprises an SS/PBCH block resource.

As an embodiment, the second reference signal resource comprises a CSI-RS resource.

As an embodiment, the second reference signal resource comprises an SS/PBCH block resource.

As an embodiment, the first reference signal resource and the second reference signal resource are not quasi co-located.

As one embodiment, the first reference signal resource and the second reference signal resource are not quasi co-located with respect to QCL-type.

As an embodiment, the first and second sub-signals are transmitted in two different PDSCH transmission opportunities (transmission occasion), respectively.

As an embodiment, the first sub-signal and the second sub-signal are orthogonal to each other in the time domain.

As an embodiment, the first sub-signal and the second sub-signal carry the same TB.

As an embodiment, the first sub-signal and the second sub-signal each comprise a repeated transmission of the same TB.

As an embodiment, the first sub-signal and the second sub-signal correspond to the same MCS.

As an embodiment, the first sub-signal and the second sub-signal correspond to the same HARQ process number.

As an embodiment, the first sub-signal and the second sub-signal correspond to the same NDI.

As an embodiment, the first sub-signal and the second sub-signal correspond to the same RV.

As an embodiment, the first and second sub-signals correspond to different RVs.

Example 8

Embodiment 8 illustrates a schematic diagram of a first TCI state group including a number of TCI states and a first symbol group being used together to determine time domain resources occupied by a first signal according to an embodiment of the present application; as shown in fig. 8.

As an embodiment, the number of TCI states included in the first TCI state group and the first symbol group are used together by the first node to determine the time domain resources occupied by the first signal.

As an embodiment, the first symbol group comprises at least one symbol.

As an embodiment, the first symbol group comprises only one symbol.

As an embodiment, the first symbol group comprises a plurality of symbols.

As an embodiment, the first symbol group comprises a plurality of consecutive symbols.

As an embodiment, all symbols in the first symbol group belong to the same slot (slot).

As an embodiment, the second signaling includes a first field, the first field in the second signaling indicating the first symbol group; the first field includes at least one DCI field.

As a sub-embodiment of the above embodiment, the first field includes a DCI field Time domain resource assignment.

As a sub-embodiment of the above embodiment, the first field is a DCI field Time domain resource assignment.

As a sub-embodiment of the above embodiment, all symbols in the first symbol group belong to a first time slot, and the first field in the second signaling indicates the first time slot.

As a sub-embodiment of the above embodiment, all symbols in the first symbol group belong to a first slot, and the first field in the second signaling indicates a position of a start symbol in the first symbol group in the first slot.

As a sub-embodiment of the above embodiment, the first field in the second signaling indicates a number of symbols comprised by the first symbol group.

As a sub-embodiment of the above embodiment, the first field in the second signaling indicates a number of consecutive symbols comprised by the first symbol group.

As an embodiment, the symbol is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM, discrete fourier transform orthogonal frequency division multiplexing) symbol.

As an embodiment, the time domain resource occupied by the first signal includes the first symbol group.

As an embodiment, the time domain resource occupied by the first signal includes some or all of the symbols in the first symbol group.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal includes some or all symbols in the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2, the time domain resource occupied by the first signal includes some or all of the symbols in the first symbol group and some or all of the symbols in the second symbol group; the first symbol group and the second symbol group are orthogonal to each other in the time domain, and the number of symbols included in the second symbol group is equal to the number of symbols included in the first symbol group.

Example 9

Embodiment 9 illustrates a schematic diagram of a first TCI state group including a number of TCI states and a first symbol group being used together to determine time domain resources occupied by a first signal according to an embodiment of the present application; as shown in fig. 9. In embodiment 9, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal includes the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2, the time domain resource occupied by the first signal includes the first symbol group and a second symbol group; the first symbol group and the second symbol group are orthogonal to each other in the time domain, and the number of symbols included in the second symbol group is equal to the number of symbols included in the first symbol group.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal is the first symbol group; the time domain resource occupied by the first signal is the first symbol group and the second symbol group when the number of TCI states included in the first TCI state group is equal to 2.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal does not include the second symbol group.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 2, one TCI state included in the first TCI state group is applied to the first symbol group and another TCI state included in the first TCI state group is applied to the second symbol group.

As an embodiment, the second symbol group comprises at least one symbol.

As an embodiment, the first symbol group comprises only one symbol and the second symbol group comprises only one symbol.

As an embodiment, the first symbol group comprises a plurality of symbols and the second symbol group comprises a plurality of symbols.

As an embodiment, the first symbol group comprises a plurality of consecutive symbols and the second symbol group comprises a plurality of consecutive symbols.

As an embodiment, all symbols in the second symbol group belong to the same slot.

As an embodiment, the first symbol group and the second symbol group belong to the same slot.

As an embodiment, the first symbol of the second symbol group is later in the time domain than the last symbol of the first symbol group.

As an embodiment, the first symbol group and the second symbol group both belong to the first slot.

As an embodiment, the first symbol of the second symbol group starts after B2 symbols after the last symbol of the first symbol group, the B2 being a non-negative integer; the B2 is equal to 0, or the B2 is configured by higher layer parameters.

As a sub-embodiment of the above embodiment, the name of the higher layer parameter configuring the B2 includes "StartingSymbolOffsetK".

As a sub-embodiment of the above embodiment, the first symbol of the second symbol group and the last symbol of the first symbol group are separated by the B2 symbols.

As an embodiment, the first signal corresponds to only one PDSCH transmission opportunity when the number of TCI states included in the first TCI state group is equal to 1, one TCI state included in the first TCI state group being applied to the one PDSCH transmission opportunity; when the number of TCI states included in the first TCI state group is equal to 2, the first signal corresponds to two PDSCH transmission opportunities to which the two TCI states included in the first TCI state group are applied, respectively.

As a sub-embodiment of the above embodiment, the one PDSCH transmission opportunity occupies the first symbol set; the two PDSCH transmission opportunities occupy the first symbol set and the second symbol set, respectively.

As a sub-embodiment of the above embodiment, the two PDSCH transmission opportunities belong to the same slot.

As a sub-embodiment of the above embodiment, the two PDSCH transmission opportunities both belong to the first slot.

As a sub-embodiment of the above embodiment, the time domain resources occupied by the two PDSCH transmission opportunities are orthogonal to each other.

As a sub-embodiment of the above embodiment, the number of symbols occupied by the two PDSCH transmission opportunities is equal.

As a sub-embodiment of the above embodiment, a first symbol of a second one of the two PDSCH transmission opportunities starts after B2 symbols after a last symbol of the first one of the two PDSCH transmission opportunities, the B2 being a non-negative integer; the B2 is equal to 0, or the B2 is configured by higher layer parameters.

As a reference embodiment of the above sub-embodiment, the name of the higher layer parameter configuring the B2 includes "StartingSymbolOffsetK".

As one reference embodiment of the above sub-embodiment, the B2 symbols are spaced between the first symbol of the second one of the two PDSCH transmission opportunities and the last symbol of the first one of the two PDSCH transmission opportunities.

Example 10

Embodiment 10 illustrates a schematic diagram of a first TCI state group including a number of TCI states, a format of the second signaling and the first symbol group being used together to determine time domain resources occupied by the first signal according to an embodiment of the present application; as shown in fig. 10.

As an embodiment, the first set of TCI states includes the number of TCI states, and the format of the second signaling and the first set of symbols are used together by the first node to determine the time domain resources occupied by the first signal.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal is the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2 and the format of the second signaling belongs to a second format set, the time domain resource occupied by the first signal is the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2 and the format of the second signaling belongs to a first format set, the time domain resource occupied by the first signal is the first symbol group and a second symbol group.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal includes the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2 and the format of the second signaling belongs to a second format set, the time domain resource occupied by the first signal includes the first symbol group; when the number of TCI states included in the first TCI state group is equal to 2 and the format of the second signaling belongs to a first format set, the time domain resource occupied by the first signal includes the first symbol group and a second symbol group.

As a sub-embodiment of the above embodiment, when the number of TCI states included in the first TCI state group is equal to 1, the time domain resource occupied by the first signal does not include the second symbol group; when the number of TCI states included in the first TCI state group is equal to 2 and the format of the second signaling belongs to the second format set, the time domain resource occupied by the first signal does not include the second symbol group.

As an embodiment, the first symbol group and the second symbol group are orthogonal to each other in the time domain, and the number of symbols included in the second symbol group is equal to the number of symbols included in the first symbol group; the first symbol group and the second symbol group belong to the same time slot; the first symbol of the second symbol set starts after B2 symbols after the last symbol of the first symbol set, the B2 being a non-negative integer; the B2 is equal to 0, or the B2 is configurable.

As an embodiment, the Format of the second signaling belongs to one of Format 1_0, format 1_1 or Format 1_2.

As an embodiment, the second set of formats and the first set of formats each include at least one DCI format; there is no DCI format belonging to both the first set of formats and the second set of formats.

As an embodiment, the first Format set includes Format 1_1 and Format 1_2; the second Format set includes formats 1_0.

As an embodiment, the format of the second signaling includes: whether the second signaling includes a first DCI domain; the first DCI domain indicates at least one TCI state.

As an embodiment, each format in the first set of formats includes a first DCI domain, and each format in the second set of formats does not include the first DCI domain; the first DCI domain indicates at least one TCI state.

As an embodiment, the first DCI domain is DCI domain "Transmission configuration indication".

Example 11

Embodiment 11 illustrates a schematic diagram of a number of TCI states included in a first TCI state group and second signaling being used together to determine time domain resources occupied by a first signal when each condition in a first set of conditions is satisfied according to an embodiment of the present application; as shown in fig. 11.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the second signaling are used together by the first node to determine the time domain resources occupied by the first signal when each condition of the first set of conditions is fulfilled.

As an embodiment, whether each condition of the first set of conditions is satisfied is used by the first node to determine: whether the number of TCI states included in the first TCI state group is used by the first node to determine the time domain resource occupied by the first signal.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the second signaling are used together to determine the time domain resources occupied by the first signal if and only if each condition of the first set of conditions is fulfilled.

As an embodiment, when one condition of the first set of conditions is not met, the number of TCI states comprised by the first set of TCI states is not used to determine the time domain resources occupied by the first signal.

As an embodiment, when one condition in the first set of conditions is not met, the time domain resource occupied by the first signal is independent of the number of TCI states comprised by the first set of TCI states.

As an embodiment, when one condition in the first set of conditions is not met, the number of TCI states comprised by the first set of TCI states and only the second signaling of the second signaling is used to determine the time domain resources occupied by the first signal.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the first set of symbols are used together to determine the time domain resources occupied by the first signal when each condition of the first set of conditions is fulfilled.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the first set of symbols are used together to determine the time domain resources occupied by the first signal if and only if each condition of the first set of conditions is fulfilled.

As an embodiment, the format of the second signaling and the first symbol group are used together to determine the time domain resources occupied by the first signal when each condition in the first set of conditions is met, the first set of TCI states comprising the number of TCI states.

As an embodiment, the format of the second signaling and the first symbol set are used together to determine the time domain resources occupied by the first signal if and only if each condition in the first set of conditions is satisfied.

As an embodiment, when one condition in the first set of conditions is not met, the number of TCI states included in the first set of TCI states and only the first set of symbols in the first set of symbols are used to determine the time domain resources occupied by the first signal.

As an embodiment, when one condition in the first set of conditions is not satisfied, the time domain resource occupied by the first signal is the first symbol group.

As an embodiment, when one condition in the first set of conditions is not satisfied, the time domain resource occupied by the first signal includes the first symbol group.

As an embodiment, when one condition in the first condition set is not satisfied, the time domain resource occupied by the first signal belongs to the first symbol group.

As one embodiment, the first set of conditions includes a third condition including: the first TCI state set is used to determine QCL relationships for at least one CORESET (COntrol REsource SET ).

As one embodiment, the first set of conditions includes a third condition including: the first TCI state set indicated by the first signaling is applied to at least a first type of channel including PDCCH and a second type of channel including PDSCH.

As an embodiment, the third condition is satisfied when the first TCI state set indicated by the first signaling is applied to at least the first type of channel and the second type of channel.

As an embodiment, the third condition is one condition of the first set of conditions.

As one embodiment, the second signaling indicates a first DMRS port group, the first DMRS port group including at least one DMRS port; the first set of conditions includes a fourth condition, the fourth condition including: all DMRS ports in the first DMRS port group belong to the same CDM group.

As an embodiment, the first DMRS port group includes only one DMRS port.

As an embodiment, the first DMRS port group includes a plurality of DMRS ports.

As an embodiment, the first DMRS port group is used for DMRS transmitting the first signal.

For one embodiment, the CDM group is defined in 3gpp TS 38.211.

As an embodiment, the second signaling includes a second field, the second field in the second signaling indicating the first DMRS port group; the second field includes a DCI field "Antenna port(s)".

As an embodiment, the fourth condition is satisfied when all DMRS ports in the first DMRS port group belong to the same CDM group.

As an embodiment, the fourth condition is not satisfied when there are two DMRS ports in the first DMRS port group that belong to different CDM groups.

As an embodiment, the fourth condition is one condition of the first set of conditions.

As one embodiment, the first set of conditions includes a fifth condition, the fifth condition including: at least one TCI state in the first TCI state set is different from the one previously indicated.

As one embodiment, the first set of conditions includes a fifth condition, the fifth condition including: any TCI state in the first TCI state set is different from the one previously indicated.

As one embodiment, the first set of conditions includes a fifth condition, the fifth condition including: any TCI state in the first TCI state set is different from any TCI state previously indicated.

As an embodiment, the fifth condition is met when at least one TCI state of the first set of TCI states is different from the one previously indicated.

As an embodiment, the fifth condition is met when any TCI state in the first set of TCI states is different from the one previously indicated.

As an embodiment, the fifth condition is satisfied when any TCI state in the first TCI state set is different from any TCI state indicated previously.

As an embodiment, the fifth condition is not met when one TCI state of the first set of TCI states is the same as the one previously indicated.

As an embodiment, the fifth condition is one condition of the first set of conditions.

As an embodiment, the first set of conditions comprises only the first condition.

As an embodiment, the first set of conditions includes only the second condition.

As an embodiment, the first set of conditions includes only the third condition.

As an embodiment, the first set of conditions includes only the fourth condition.

As an embodiment, the first set of conditions includes only the fifth condition.

As an embodiment, the first set of conditions includes the first condition and the second condition.

As an embodiment, the first set of conditions consists of the first condition and the second condition.

As an embodiment, the first set of conditions includes the first condition, the second condition, and the fourth condition.

As an embodiment, the first condition set consists of the first condition, the second condition and the fourth condition.

As an embodiment, the first set of conditions includes the first condition, the second condition, and the third condition.

As an embodiment, the first condition set consists of the first condition, the second condition and the third condition.

As an embodiment, the first condition set includes the first condition, the second condition, and the fifth condition.

As an embodiment, the first condition set is composed of the first condition, the second condition, and the fifth condition.

As an embodiment, the first set of conditions includes the first condition, the second condition, the third condition, and the fourth condition.

As an embodiment, the first condition set consists of the first condition, the second condition, the third condition and the fourth condition.

As one embodiment, the first set of conditions includes the first condition, the second condition, the third condition, and the fifth condition.

As one embodiment, the first set of conditions consists of the first condition, the second condition, the third condition and the fifth condition.

As one embodiment, the first set of conditions includes the first condition, the second condition, the fourth condition, and the fifth condition.

As one embodiment, the first condition set is composed of the first condition, the second condition, the fourth condition, and the fifth condition.

As one embodiment, the first condition set includes the first condition, the second condition, the third condition, the fourth condition, and the fifth condition.

As one embodiment, the first condition set is composed of the first condition, the second condition, the third condition, the fourth condition, and the fifth condition.

As an embodiment, the first set of conditions includes the first condition and the third condition.

As an embodiment, the first set of conditions includes the second condition and the third condition.

As an embodiment, the first set of conditions includes the first condition and the fourth condition.

As an embodiment, the first set of conditions includes the second condition and the fourth condition.

As an embodiment, the first set of conditions includes the first condition and the fifth condition.

As an embodiment, the first set of conditions includes the second condition and the fifth condition.

As an embodiment, the first set of conditions includes the third condition and the fourth condition.

As an embodiment, the first set of conditions includes the third condition and the fifth condition.

As an embodiment, the first set of conditions includes the fourth condition and the fifth condition.

Example 12

Embodiment 12 illustrates a schematic diagram in which a first set of conditions includes a first condition according to one embodiment of the present application; as shown in fig. 12. In embodiment 12, the first condition includes: the first higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is one condition of the first set of conditions.

As an embodiment, the first set of conditions consists of the first condition.

As an embodiment, the first set of conditions includes at least one other condition than the first condition.

As an embodiment, the first condition comprises only that the first higher layer parameter is configured and that the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is fulfilled when the first higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is not satisfied when the first higher layer parameter is not configured; the first condition is not satisfied when the first higher layer parameter is configured and the value of the first higher layer parameter does not belong to the first parameter value set.

As an embodiment, the first higher layer parameter is an RRC parameter.

As an embodiment, the name of the first higher layer parameter includes "repetition".

As an embodiment, the name of the first higher layer parameter includes "repetition scheme".

As an embodiment, any parameter value of the first set of parameter values is a candidate value for the first higher layer parameter.

As an embodiment, the first set of parameter values comprises only one parameter value.

As an embodiment, the first set of parameter values comprises a plurality of parameter values.

As an embodiment, one parameter value of the first set of parameter values comprises a string "tdmcscheme".

As an embodiment, one parameter value of the first set of parameter values comprises a string "tdmcatea".

As an embodiment, the first set of parameter values comprises parameter values "tdmcatea".

As an embodiment, the first set of parameter values comprises only one parameter value, the one parameter value comprising a string "tdmcscheme".

As a sub-embodiment of the above embodiment, the one parameter value includes a character string "tdmcatea".

As a sub-embodiment of the above embodiment, the one parameter value is "tdmcatea".

Example 13

Embodiment 13 illustrates a schematic diagram in which a first set of conditions includes a first condition according to one embodiment of the present application; as shown in fig. 13. In embodiment 13, the first condition includes: the first higher layer parameter is configured, a second higher layer parameter is configured, and the value of the first higher layer parameter belongs to the first set of parameter values.

As an embodiment, the first condition further includes: the second higher layer parameters are configured.

As an embodiment, the first condition is fulfilled when the first higher layer parameter is configured, the second higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is fulfilled if and only if the first higher layer parameter is configured, the second higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is not satisfied when the first higher layer parameter is not configured; when the second higher layer parameter is not configured, the first condition is not satisfied; the first condition is not satisfied when the first higher layer parameter is configured and the value of the first higher layer parameter does not belong to the first parameter value set.

As an embodiment, the second higher layer parameter is an RRC parameter.

As an embodiment, the name of the second higher layer parameter includes "unitedtstate".

As an embodiment, the names of the second higher layer parameters include "tcisttate" and "r17".

As an embodiment, the name of the second higher layer parameter includes "dlorjob".

As an embodiment, the name of the second higher layer parameter includes "dlorjoin-TCIState".

As an embodiment, the name of the second higher layer parameter includes "dlorjoin-TCIState-ToAddModList".

Example 14

Embodiment 14 illustrates a schematic diagram in which a first set of conditions includes a first condition according to one embodiment of the present application; as shown in fig. 14. In embodiment 14, the first condition includes: the first higher layer parameter is configured, the value of the first higher layer parameter belongs to the first parameter value set, and a second higher layer parameter or a third higher layer parameter is configured.

As an embodiment, the first condition further includes: the second higher layer parameter or the third higher layer parameter is configured.

As an embodiment, the first condition is fulfilled when the first higher layer parameter is configured, the second higher layer parameter or the third higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is fulfilled if and only if the first higher layer parameter is configured, the second higher layer parameter or the third higher layer parameter is configured and the value of the first higher layer parameter belongs to the first parameter value set.

As an embodiment, the first condition is not satisfied when the first higher layer parameter is not configured; when neither the second higher layer parameter nor the third higher layer parameter is configured, the first condition is not satisfied; the first condition is not satisfied when the first higher layer parameter is configured and the value of the first higher layer parameter does not belong to the first parameter value set.

As an embodiment, the name of the third higher layer parameter includes "refunifiedtcstate".

As an embodiment, the name of the third higher layer parameter includes "refunifiedtcatitelist".

As an embodiment, the name of the second higher layer parameter includes "dlorjoin-TCIState", and the name of the third higher layer parameter includes "refunifiedtistate".

As an embodiment, the name of the second higher layer parameter includes "dlorjoin-TCIState-ToAddModList", and the name of the third higher layer parameter includes "refunifiedtcatitelist".

Example 15

Embodiment 15 illustrates a schematic diagram in which a first set of conditions includes a first condition according to one embodiment of the present application; as shown in fig. 15. In embodiment 15, the first condition includes: the first higher layer parameter is configured and the value of the first higher layer parameter belongs to the first set of parameter values, and the second higher layer parameter is configured and the value of the second higher layer parameter belongs to the second set of parameter values.

As an embodiment, the first condition further includes: the second higher layer parameter is configured and the value of the second higher layer parameter belongs to a second set of parameter values.

As an embodiment, the first condition is fulfilled when the first higher layer parameter is configured and the value of the first higher layer parameter belongs to the first set of parameter values, and the second higher layer parameter is configured and the value of the second higher layer parameter belongs to the second set of parameter values.

As an embodiment, the first condition is fulfilled if and only if the first higher layer parameter is configured and the value of the first higher layer parameter belongs to the first set of parameter values, and the second higher layer parameter is configured and the value of the second higher layer parameter belongs to the second set of parameter values.

As an embodiment, the first condition is not satisfied when the first higher layer parameter is not configured; the first condition is not satisfied when the first higher layer parameter is configured and the value of the first higher layer parameter does not belong to the first parameter value set; when the second higher layer parameter is not configured, the first condition is not satisfied; the first condition is not satisfied when the second higher layer parameter is configured and the value of the second higher layer parameter does not belong to the second parameter value set.

As an embodiment, the name of the second higher layer parameter includes "followunifiedtisite".

As an embodiment, the names of the second higher layer parameters include "follow", "TCIstate" and "r17".

As an embodiment, the names of the second higher layer parameters include "following", "integrated" and "tcisttate".

As an embodiment, any parameter value of the second set of parameter values is a candidate value for the second higher layer parameter.

As an embodiment, the second set of parameter values comprises only one parameter value.

As an embodiment, the second set of parameter values comprises a plurality of parameter values.

As an embodiment, one parameter value of the second set of parameter values comprises a string "enabled".

As an embodiment, the second set of parameter values comprises a parameter value "enabled".

As an embodiment, the second set of parameter values comprises only one parameter value, the one parameter value comprising the string "enabled".

Example 16

Embodiment 16 illustrates a schematic diagram in which a first set of conditions includes a second condition according to one embodiment of the application; as shown in fig. 16. The second condition in embodiment 16 includes: the format of the second signaling belongs to the first set of formats.

As an embodiment, the second condition is one condition of the first set of conditions.

As an embodiment, the first set of conditions consists of the second condition.

As an embodiment, the first set of conditions includes at least one other condition than the second condition.

As an embodiment, the second condition comprises that only the format of the second signaling belongs to the first set of formats.

As an embodiment, the second condition is fulfilled when the format of the second signaling belongs to the first set of formats.

As an embodiment, the second condition is not satisfied when the format of the second signaling does not belong to the first set of formats.

As an embodiment, the first Format set includes Format 1_1.

As an embodiment, the first Format set includes Format 1_2.

As an embodiment, the first Format set includes Format 1_1 and Format 1_2.

As an embodiment, the first Format set does not include Format 1_0.

As an embodiment, the first Format set is composed of formats 1_1 and formats 1_2.

As an embodiment, when the Format of the second signaling is Format 1_1 or Format 1_2, the number of TCI states included in the first TCI state group and the second signaling are used together to determine the time domain resource occupied by the first signal.

As an embodiment, when the Format of the second signaling is Format 1_0, the time domain resource occupied by the first signal is independent of the number of TCI states included in the first TCI state group.

As an embodiment, when the Format of the second signaling is Format 1_0, the time domain resource occupied by the first signal is the first symbol group.

As an embodiment, when the Format of the second signaling is Format 1_0, the time domain resource occupied by the first signal includes the first symbol group.

As an embodiment, when the Format of the second signaling is Format 1_0, the time domain resource occupied by the first signal belongs to the first symbol group.

As an embodiment, the format of the second signaling includes: whether the second signaling includes a first DCI domain; the first DCI domain indicating at least one TCI state; each format in the first set of formats includes the first DCI domain.

As an embodiment, the format of the second signaling includes: whether the second signaling includes a first DCI domain indicating at least one TCI state; when the second signaling includes the first DCI domain, a format of the second signaling belongs to the first format set; when the second signaling does not include the first DCI domain, a format of the second signaling does not belong to the first set of formats.

As an embodiment, the first DCI domain includes a DCI domain "Transmission configuration indication".

As an embodiment, when the second signaling includes the first DCI domain, the number of TCI states included in the first TCI state group and the second signaling are used together to determine the time domain resources occupied by the first signal.

As an embodiment, when the second signaling does not include the first DCI domain, the time domain resources occupied by the first signal are independent of the number of TCI states included in the first TCI state group.

As an embodiment, when the second signaling does not include the first DCI domain, the time domain resource occupied by the first signal is the first symbol group.

As an embodiment, when the second signaling does not include the first DCI domain, the time-domain resource occupied by the first signal includes the first symbol group.

As an embodiment, when the second signaling does not include the first DCI domain, the time domain resource occupied by the first signal belongs to the first symbol group.

Example 17

Embodiment 17 illustrates that when the number of TCI states included in the first TCI state group is equal to 2, the format of the second signaling is used to determine: a schematic of whether only one TCI state of the first TCI state set is applied to the first signal or both TCI states of the first TCI state set are applied to the first signal; as shown in fig. 17.

As an embodiment, when the number of TCI states comprised by the first TCI state group is equal to 2, the format of the second signaling is used by the first node to determine: whether only one TCI state of the first TCI state group is applied to the first signal or both TCI states of the first TCI state group are applied to the first signal.

As one embodiment, only one TCI state of the first set of TCI states is applied to the first signal.

As an embodiment, both TCI states of the first set of TCI states are applied to the first signal.

As one embodiment, the first TCI state group includes the number of TCI states equal to 2; when the format of the second signaling belongs to a second set of formats, only one TCI state of the first set of TCI states is applied to the first signal; when the format of the second signaling belongs to a first set of formats, both TCI states of the first set of TCI states are applied to the first signal; the second set of formats and the first set of formats each include at least one DCI format.

As an embodiment, the second Format set includes Format 1_0.

As an embodiment, the second Format set is composed of Format 1_0.

As an embodiment, the second Format set does not include Format 1_1 and Format 1_2.

As an embodiment, any DCI format in the second set of formats does not include the first DCI domain.

As an embodiment, the first Format set includes Format 1_1.

As an embodiment, the first Format set includes Format 1_2.

As an embodiment, the first Format set includes Format 1_1 and Format 1_2.

As an embodiment, the first Format set does not include Format 1_0.

As an embodiment, any DCI format in the first set of formats includes a first DCI domain.

As an embodiment, there is no one DCI format belonging to both the second set of formats and the first set of formats.

As an embodiment, the format of the second signaling includes: whether the second signaling includes a first DCI domain.

As one embodiment, when the second signaling does not include the first DCI domain, only one TCI state of the first TCI state group is applied to the first signal; when the second signaling includes the first DCI domain, both TCI states of the first TCI state group are applied to the first signal.

As an embodiment, the first DCI domain indicates at least one TCI state.

As an embodiment, the first TCI state and the second TCI state are two TCI states comprised by the first TCI state group, respectively; when only one TCI state of the first TCI state group is applied to the first signal, the first TCI state is one TCI state of the two TCI states included in the first TCI state group, which is applied to the first signal.

As a sub-embodiment of the above embodiment, the second TCI state is not applied to the first signal.

As a sub-embodiment of the above embodiment, the first TCI state is a default one of the two TCI states included in the first TCI state group.

As a sub-embodiment of the above embodiment, the two TCI states included in the first TCI state group are sequentially arranged; the first TCI state is the one of the two TCI states included in the first TCI state group that is arranged in front.

As a sub-embodiment of the above embodiment, a first TCI code point indicates the two TCI states included in the first TCI state group in sequence; the first TCI state is the one of the two TCI states included in the first TCI state group that is arranged in front.

As a sub-embodiment of the above embodiment, the first signaling indicates a first TCI code point, and the first TCI code point sequentially indicates the two TCI states included in the first TCI state group; the first TCI state is the one of the two TCI states included in the first TCI state group that is arranged in front.

As a sub-embodiment of the above embodiment, the first TCI state is the smaller one of the two TCI states included in the first TCI state group, which corresponds to TCI-StateId.

As one embodiment, when both TCI states of the first TCI state group are applied to the first signal, the first signal includes a first sub-signal to which the first TCI state is applied and a second sub-signal to which the second TCI state is applied; the first TCI state and the second TCI state are the two TCI states comprised by the first TCI state group, respectively.

As a sub-embodiment of the above embodiment, the first sub-signal and the second sub-signal are orthogonal to each other in the time domain.

Example 18

Embodiment 18 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. 18. In fig. 18, the processing means 1800 in the first node device comprises a first processor 1801.

In embodiment 18, the first processor 1801 receives first signaling, second signaling, and first signals.

In embodiment 18, the first signaling indicates a first TCI state group, the first TCI state group including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first set of TCI states and the second signaling are used together to determine time domain resources occupied by the first signal.

As an embodiment, the second signaling indicates a first symbol group, the first TCI state group comprising the number of TCI states and the first symbol group together being used to determine the time domain resources occupied by the first signal.

As an embodiment, the number of TCI states comprised by the first set of TCI states and the second signaling are together used to determine the time domain resources occupied by the first signal when each condition of a first set of conditions is fulfilled; the first set of conditions includes at least one condition.

As an embodiment, whether each condition of the first set of conditions is satisfied is used to determine whether the number of TCI states comprised by the first set of TCI states is used to determine the time domain resources occupied by the first signal.

As one embodiment, the first set of conditions includes a first condition including: a first higher layer parameter is configured and the value of the first higher layer parameter belongs to a first set of parameter values; the first set of parameter values includes at least one parameter value.

As one embodiment, the first set of conditions includes a second condition including: the format of the second signaling belongs to the first set of formats.

As an embodiment, when the number of TCI states included in the first TCI state group is equal to 2, the format of the second signaling is used to determine whether only one TCI state of the first TCI state group is applied to the first signal or both TCI states of the first TCI state group are applied to the first signal.

For one embodiment, the first processor 1801 also sends a second signal; wherein the second signal comprises a HARQ-ACK for the first signaling, the first signaling being used to determine time domain resources occupied by the second signal, the time domain resources occupied by the second signal being used to determine a target time unit; the first signal is not earlier than the target time unit.

For one embodiment, the first processor 1801 further receives a third signal; wherein the third signal is transmitted on a first PDSCH, the first signaling being used to schedule the first PDSCH, the third signal carrying a first block of bits; the second signal includes HARQ-ACKs for the first PDSCH; the first signaling indicates time domain resources occupied by the third signal, and the first signaling indicates a time interval between the time domain resources occupied by the second signal and the time domain resources occupied by the third signal.

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 embodiment, the first signaling includes DCI, the second signaling includes DCI, and the first signaling and the second signaling include two different DCIs, respectively; the first signal carries at least one TB or at least one CBG; the first signaling indicates a TCI state of the first signal; the first signaling is used to determine a target time unit, the target time unit being a time slot; the first signal is not earlier than the target time unit.

As an embodiment, the first signaling is used to determine a target time unit, the target time unit being a time slot; the starting time of the second signaling is not earlier than the starting time of the target time unit; the first signaling indicates a TCI state of the second signaling; at least one TCI state of the first set of TCI states is applied to the second signaling.

As an example, the first processor 1801 includes at least one of { antenna 452, receiver/transmitter 454, reception processor 456, transmission processor 468, multi-antenna reception processor 458, multi-antenna transmission processor 457, controller/processor 459, memory 460, and data source 467} in embodiment 4.

Example 19

Embodiment 19 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. 19. In fig. 19, the processing means 1900 in the second node device comprises a second processor 1901.

In embodiment 19, the second processor 1901 transmits first signaling, second signaling, and first signal;

in embodiment 19, the first signaling indicates a first TCI state group including at least one TCI state; at least one TCI state of the first set of TCI states is applied to the first signal; the second signaling indicates one or more of frequency domain resources, MCS, HARQ process number, RV or NDI of the first signal; the number of TCI states included in the first set of TCI states and the second signaling are used together to determine time domain resources occupied by the first signal.

For one embodiment, the second processor 1901 also receives a second signal; wherein the second signal comprises a HARQ-ACK for the first signaling, the first signaling being used to determine time domain resources occupied by the second signal, the time domain resources occupied by the second signal being used to determine a target time unit; the first signal is not earlier than the target time unit.

For one embodiment, the second processor 1901 also sends a third signal; wherein the third signal is transmitted on a first PDSCH, the first signaling being used to schedule the first PDSCH, the third signal carrying a first block of bits; the second signal includes HARQ-ACKs for the first PDSCH; the first signaling indicates time domain resources occupied by the third signal, and the first signaling indicates a time interval between the time domain resources occupied by the second signal and the time domain resources occupied by the third signal.

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 processor 1901 includes at least one of { antenna 420, transmitter/receiver 418, transmit processor 416, receive processor 470, multi-antenna transmit processor 471, multi-antenna receive processor 472, controller/processor 475, memory 476} in example 4.

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, vehicles, RSU, 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 equipment in the present application includes, but is not limited to, macro cell base station, micro cell base station, small cell base station, home base station, relay base station, eNB, gNB, TRP (Transmitter Receiver Point, transmitting and receiving node), GNSS, relay satellite, satellite base station, air base station, RSU (Road Side Unit), unmanned aerial vehicle, and test equipment, such as transceiver for simulating the functions of the base station part or wireless communication equipment such as signaling tester.

It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the presently disclosed embodiments are considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node device for wireless communication, comprising:

2. The first node device of claim 1, wherein the second signaling indicates a first set of symbols, the first set of TCI states comprising the number of TCI states and the first set of symbols together being used to determine the time domain resources occupied by the first signal.

3. The first node device of claim 1 or 2, wherein the number of TCI states comprised by the first TCI state group and the second signaling are used together to determine the time domain resources occupied by the first signal when each condition in a first set of conditions is met; the first set of conditions includes at least one condition.

4. A first node device according to claim 3, characterized in that whether each condition of the first set of conditions is met is used for determining whether the number of TCI states comprised by the first set of TCI states is used for determining the time domain resources occupied by the first signal.

5. The first node device of claim 3 or 4, wherein the first set of conditions comprises a first condition comprising: a first higher layer parameter is configured and the value of the first higher layer parameter belongs to a first set of parameter values; the first set of parameter values includes at least one parameter value.

6. The first node device of any of claims 3 to 5, wherein the first set of conditions comprises a second condition comprising: the format of the second signaling belongs to the first set of formats.

7. The first node device of any of claims 1-6, wherein when the number of TCI states included in the first TCI state group is equal to 2, a format of the second signaling is used to determine whether only one TCI state of the first TCI state group is applied to the first signal or both TCI states of the first TCI state group are applied to the first signal.

8. A second node device for wireless communication, comprising:

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

Receiving a first signaling and a second signaling;

receiving a first signal;

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

transmitting a first signaling and a second signaling;

transmitting a first signal;