CN113133124A

CN113133124A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113133124A
Application number: CN201911406219.0A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16
Anticipated expiration: 2039-12-31
Also published as: CN113133124B; CN115589638A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node receives a first signal and transmits a second signal in a target set of time-frequency resources. Wherein the first signals are used for determining timing related information, a first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access. The method enables the first node to have a plurality of first-class signals sending opportunities after the channel sensing operation, and reduces the probability that the first-class signals cannot be sent due to uncertainty of channel sensing time consumption.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus related to multicast signals in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

One of the key technologies of NR is to support beam-based signal transmission, and its main application scenario is to enhance the coverage performance of NR devices operating in the millimeter wave frequency band (e.g., greater than 6 GHz). In addition, beam-based transmission techniques are also required to support large-scale antennas at low frequency bands (e.g., less than 6 GHz). Through the weighting process of the antenna array, the rf signal forms a stronger beam in a specific direction, and the rf signal is weaker in other directions. After the operations of beam measurement, beam feedback and the like, the beams of the transmitter and the receiver can be accurately aligned to each other, so that signals are transmitted and received with stronger power, and the coverage performance is improved. The cell discovery and measurement of the NR system operating in the millimeter wave band may be accomplished by a plurality of synchronized broadcast signal blocks (SS/PBCH blocks, SSBs) or channel state information reference signals (CSI-RSs), different SSBs or CSI-RSs may be transmitted using different beams, and User Equipments (UEs) at different locations may detect the SSBs or CSI-RSs in a specific beam and complete the cell discovery or measurement.

In conventional cellular systems, data transmission can only take place over licensed spectrum, however, with the dramatic increase in traffic, especially in some urban areas, licensed spectrum may be difficult to meet traffic demands. 3GPP Release 17 will consider extending the application of NR to unlicensed spectrum above 52.6 GHz. To ensure compatibility with access technologies on other unlicensed spectrum, LBT (Listen Before Talk) techniques are used to avoid interference due to multiple transmitters occupying the same frequency resources at the same time. For unlicensed spectrum above 52.6GHz, directional lbt (directional lbt) techniques are preferably used to avoid interference due to the significant directivity of beam-based signal transmission.

Disclosure of Invention

The inventors have found through research that the directional LBT technique is beneficial to improve spectrum reuse efficiency and mitigate interference. For NR systems operating on unlicensed spectrum, since the results of LBT are unpredictable, it is difficult to ensure that signals used for cell discovery and measurement can be transmitted at a specific time, and how to perform cell discovery and measurement 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 the scenarios of cell discovery and measurement in the directional LBT and NR systems as an example, the present application is also applicable to other communication scenarios (e.g., node discovery and measurement in omni-directional LBT and sidelink scenarios), and achieves similar technical effects. Furthermore, employing a unified solution for different scenarios (including but not limited to NR system cell discovery and measurement and sidelink scenario node discovery and measurement) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS38 series.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS37 series.

As an example, the terms in the present application are explained with reference to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers).

The application discloses a method in a first node device used for wireless communication, characterized by comprising:

receiving a first signal;

transmitting a second signal in the target time frequency resource set;

wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the problem to be solved by the present application includes: how to solve the problem that the first type signal can not be sent because the LBT can take a long time.

As an embodiment, the characteristics of the above method include: the first type of signals are used for cell discovery and measurement, the first type of signals set comprises a plurality of transmission opportunities of the first type of signals, and the first signals can be transmitted at any one of the transmission opportunities.

As an example, the benefits of the above method include: providing multiple transmission opportunities for the first type of signal within the first time window increases the probability that the first type of signal may still be transmitted after LBT success.

As an embodiment, the problem to be solved by the present application includes: uncertainty in the time spent for LBT results in uncertainty in the transmission time of the first type of signal, how to enable the first node device to accurately determine to the random access resource.

As an embodiment, the characteristics of the above method include: all first-class signals in the first-class signal set meet a quasi co-location relationship and are associated to a first index, and when a first node detects any one first-class signal, the first index can be determined, and the first index is used for determining random access resources.

As an example, the benefits of the above method include: the confusion of the index of the first type signal caused by the uncertainty of the LBT is avoided, so that the first type signal can be accurately associated to the corresponding random access resource.

According to one aspect of the present application, the method is characterized in that the first signal group comprises Q2 candidate signal sets, the Q2 is an integer greater than 1, and the first signal group is one of the Q2 candidate signal sets; any one of the Q2 candidate signal sets comprises a positive integer number of first class signals; all signals of the first type belonging to one of said candidate signal sets are quasi co-located.

According to one aspect of the application, the method is characterized in that the Q2 candidate signal sets are discrete in the time domain.

According to one aspect of the present application, the above method is characterized by receiving a third signal, the third signal comprising cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets.

As an embodiment, the problem to be solved by the present application includes: the signals for cell discovery and measurement can be transmitted on the same or adjacent time resources as the system message block multiplex, how to determine the time domain resources used by the system message block.

As an embodiment, the characteristics of the above method include: the third signal comprises a system message, the system message and one of the candidate signal sets are multiplexed on the same time domain resource and have quasi-co-location relation with the first type signal in the candidate signal set; at the same time, the time domain resources between two adjacent candidate signal sets in the time domain are used for channel sensing operation, so the system message is not transmitted in the time.

As an example, the benefits of the above method include: the system message and the candidate signal set are multiplexed on the same section of time domain resource, so that the channel sensing operation special for the system message is avoided, and the overall overhead is saved.

According to one aspect of the application, the above method is characterized in that said first index is related to the value of said Q1.

According to one aspect of the present application, the above method is characterized in that the time resource occupied by the first signal is determined by a channel sensing operation; the channel sensing operation includes performing energy detection on a first sub-band, the energy detection being used to determine whether the first sub-band is idle.

According to an aspect of the present application, the above method is characterized by receiving a first signaling, the first signaling including measurement configuration information, the measurement configuration information including a target signal index, the target signal index being used for determining the first type signal set; the phrase "receiving a first signal" includes determining the first signal among the set of signals of the first type.

As an embodiment, the problem to be solved by the present application includes: when the first node device performs measurement, how to determine the time-frequency resource occupied by the first signal.

As an embodiment, the characteristics of the above method include: the first node determines a first type signal set from the Q2 candidate signal sets by a target signal index in the first signaling, and determines the first signal from the Q1 first type signals in the first type signal set.

As an example, the benefits of the above method include: when the first node carries out measurement, the first signaling is firstly used for determining the first type signal set, and then the first signal is determined from the first type signal set, so that confusion caused by uncertainty of LBT is avoided.

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

transmitting a first signal;

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

According to one aspect of the present application, the above method is characterized by transmitting a third signal, the third signal including cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets.

According to an aspect of the present application, the above method is characterized by transmitting a first signaling, the first signaling including measurement configuration information, the measurement configuration information including a target signal index, the target signal index being used for determining the first type signal set; the phrase "transmitting a first signal" includes determining and transmitting the first signal among the set of signals of the first type.

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

a first receiver receiving a first signal;

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

The present application discloses a second node device used for wireless communication, comprising:

a second transmitter which transmits the first signal;

a second receiver to receive a second signal in a set of target time-frequency resources;

As an example, the present application has the following advantages:

after one directional LBT, there are multiple transmission opportunities for the first type of signal, reducing the probability that the first type of signal cannot be transmitted due to the time-consuming uncertainty of LBT;

the index of the first type signal is related to the candidate signal set where it is located, rather than being determined only by the time resource location of the first type signal, avoiding index confusion due to uncertainty of LBT;

the system message block and the candidate signal set can be multiplexed on the same segment of time domain resource, so that the overhead of channel sensing for the system message block independently is avoided;

when the first node performs measurement, the candidate signal set where the first signal is located may be determined according to the target signal index, so as to determine the time-frequency resource location of the first signal, thereby avoiding confusion of the time-frequency resource location of the measured signal due to the uncertainty of LBT.

Drawings

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

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

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

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

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

FIG. 5 shows a wireless signal transmission flow diagram according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first type of signal and a second signal according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of Q2 candidate signal sets according to one embodiment of the present application;

FIG. 8 shows a schematic diagram of two temporally adjacent candidate signal sets according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a third signal according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a channel sensing operation according to an embodiment of the present application;

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

FIG. 12 shows a schematic diagram of a first signal according to an embodiment of the present application;

FIG. 13 is a block diagram showing a processing arrangement for use in the first node device;

fig. 14 shows a block diagram of a processing means for use in the second node device.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node device according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In particular, the order of steps in blocks does not represent a particular chronological relationship between the various steps. In embodiment 1, a first node apparatus in the present application receives a first signal in step 101; a second signal is transmitted in the target set of time-frequency resources in step 102. In this embodiment, the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the first type of signal is generated by a pseudo-random sequence.

As an embodiment, the first type of signal is generated from a Gold sequence.

As an embodiment, the first type of signal is generated by an M-sequence.

As an example, the first type of signal is generated by a Zadoff-Chu sequence.

As an embodiment, the first type of signal is generated in reference to section 7.4.1.5 of 3GPP TS 38.211.

As an embodiment, the first type of signal is cell-specific.

As an embodiment, the first type of signal is user equipment specific.

As an embodiment, the first type of signal is transmitted on a sidelink.

For one embodiment, the first type of signal includes an antenna port.

For one embodiment, the first type of signal includes a plurality of antenna ports.

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

As an example, the first type of Signal includes SS (Synchronization Signal).

As an embodiment, the first type of Signal includes a PSS (Primary Synchronization Signal).

As an embodiment, the first type of Signal includes SSS (Secondary Synchronization Signal).

For one embodiment, the first type of signal comprises an SSB (SS/PBCH block, synchronized broadcast signal block).

As one example, the first type of Signal may include a S-PSS (Sidlink-Primary Synchronization Signal, Secondary Link Primary Synchronization Signal).

As one example, the first type of Signal includes S-SSS (Sidelink-Secondary Synchronization Signal).

For one embodiment, the first type of signal comprises a S-SSB (Sidelink-SS/PBCH block).

As an embodiment, the first type of Signal includes a DM-RS (DeModulation-Reference Signal).

For one embodiment, the first type of signal includes CSI-RS resources.

As an embodiment, the first type of signal includes CSI-IM (CSI-Interference Measurement) resources.

For one embodiment, the first type of signal includes SSB resources.

As an embodiment, the timing related information comprises time synchronization information.

As an embodiment, the timing related information comprises frequency synchronization information.

As an embodiment, the timing related information comprises a system frame number.

As an embodiment, the timing related information comprises a subframe number.

As an embodiment, the timing related information comprises a slot number.

As one embodiment, the timing related information includes OFDM symbols.

As one embodiment, the timing related information includes OFDM symbol reception timing.

For one embodiment, the timing related information includes an SSB index.

As an embodiment, the sentence "any two of the Q1 first-type signals are quasi co-located" includes that the quasi co-located relationship of any two of the Q1 first-type signals is one of quasi co-located type a, quasi co-located type B, quasi co-located type C, and quasi co-located type D.

As an example, the sentence "any two of the Q1 first type signals are quasi co-located" includes that any two of the Q1 first type signals are transmitted using the same transmit beam.

As an example, the sentence "any two of the Q1 first type signals are quasi co-located" includes that any two of the Q1 first type signals are received using the same receive beam.

As an example, the sentence "any two of the Q1 first type signals are quasi co-located" includes that any two of the Q1 first type signals are received with the same spatial reception parameters.

As an example, the sentence "any two of the Q1 first type signals are each quasi co-located" includes that any two of the Q1 first type signals experience the same one or more large scale channel parameters.

As an embodiment, the sentence "any two of the Q1 first type signals are quasi co-located" includes that any two of the Q1 first type signals are associated with the same Transmission Configuration Indicator (TCI).

As an embodiment, the sentence "any two of the Q1 first type signals are quasi co-located" includes that any two of the Q1 first type signals and the same reference signal satisfy a quasi co-located relationship.

For one embodiment, the first index comprises an SSB index.

For one embodiment, the first index includes a CSI-RS resource index.

As an embodiment, the first index is indicated by dynamic signaling.

As one embodiment, the first index is pre-configured.

As one embodiment, the first index is determined by PBCH loading.

As one embodiment, the first index is implicitly determined by the SSB.

As an embodiment, the first index is implicitly determined by DMRS.

As an embodiment, the first index is determined by a System Information Block (SIB).

As one embodiment, the first signal is used to determine the first index.

As an embodiment, any one of the first type signals in the first type signal set is used for determining the first index.

For one embodiment, the second signal comprises a baseband signal.

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

As one embodiment, the second signal is transmitted on a SideLink (SideLink).

As one embodiment, the second signal is transmitted on an UpLink (UpLink).

As an example, the second signal is transmitted on a Backhaul link (Backhaul).

As an embodiment, the second signal is transmitted over a Uu interface.

As an example, the second signal is transmitted through a PC5 interface.

As an embodiment, the physical layer channel occupied by the second signal includes a PRACH.

As an embodiment, the physical layer channel occupied by the second signal includes a PUCCH.

As an embodiment, the physical layer channel occupied by the second signal includes a pscch.

As an embodiment, the physical layer channel occupied by the second signal includes PSCCH.

As one embodiment, the second signal is transmitted in a licensed spectrum.

As one embodiment, the second signal is transmitted in an unlicensed spectrum.

For one embodiment, the second signal includes a random access preamble sequence.

For one embodiment, the second signal includes a random access message 1(message 1, msg 1).

For one embodiment, the second signal comprises a random access message 3(message 3, msg 3).

Example 2

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

Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System )/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the first node device in the present application includes the UE 201.

As an embodiment, the second node device in this application includes the gNB 203.

As an embodiment, the second node device in this application includes the UE 241.

As an embodiment, the first node device in this application includes the gNB 203.

As an embodiment, the second node device in the present application includes the UE 201.

As an embodiment, the second node device in this application includes the gNB 204.

As an embodiment, the UE201 is included in the user equipment of the present application.

As an embodiment, the UE241 is included in the user equipment in this application.

As an embodiment, the base station apparatus in this application includes the gNB 203.

As an embodiment, the base station device in this application includes the gNB 204.

As an embodiment, the UE201 supports sidelink transmission.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports the Uu interface.

For one embodiment, the UE241 supports sidelink transmission.

As an embodiment, the UE241 supports a PC5 interface.

As an embodiment, the gNB203 supports the Uu interface.

As an example, the gNB203 supports Integrated Access and Backhaul (IAB).

As an example, the gNB204 supports Integrated Access and Backhaul (IAB).

As an embodiment, the sender of the first signal in this application includes the gNB 203.

As an embodiment, the sender of the first signal in this application includes the UE 241.

As an embodiment, the sender of the first signal in the present application includes the UE 201.

As an embodiment, the sender of the first signal in this application includes the gNB 204.

As an embodiment, the receiver of the first signal in this application includes the UE 201.

As an embodiment, the receiver of the first signal in this application includes the gNB 203.

As an embodiment, the sender of the second signal in this application includes the UE 201.

As an embodiment, the sender of the second signal in this application includes the gNB 203.

As an embodiment, the receiver of the second signal in this application includes the gNB 203.

As an embodiment, the receiver of the second signal in this application includes the UE 241.

As an embodiment, the receiver of the second signal in this application includes the UE 201.

As an example, the receiver of the second signal in this application includes the gNB 204.

As an embodiment, the sender of the third signal in this application includes the gNB 203.

As an embodiment, the sender of the third signal in this application includes the UE 241.

As an embodiment, the sender of the third signal in this application includes the UE 201.

As an embodiment, the sender of the third signal in this application includes the gNB 204.

As an embodiment, the receiver of the third signal in this application includes the UE 201.

As an embodiment, the receiver of the third signal in this application includes the gNB 203.

As an embodiment, the sender of the first signaling in this application includes the gNB 203.

As an embodiment, the sender of the first signaling in this application includes the UE 241.

As an embodiment, the sender of the first signaling in the present application includes the UE 201.

As an embodiment, the sender of the first signaling in this application includes the gNB 204.

As an embodiment, the receiver of the first signaling in this application includes the UE 201.

As an embodiment, the receiver of the first signaling in this application includes the gNB 203.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

As an example, the wireless protocol architecture in fig. 3 is applicable to the second node device in the present application.

As an embodiment, the first signal in this application is generated in the PHY 351.

As an example, the first signal in this application is generated in the MAC 352.

As an embodiment, the first signaling in this application is generated in the PHY 351.

As an embodiment, the first signaling in this application is generated in the MAC 352.

As an example, the first signal in this application is generated in the PHY 301.

As an example, the first signal in this application is generated in the MAC 302.

As an embodiment, the first signal in this application is generated in the RRC 306.

As an embodiment, the first signaling in this application is generated in the PHY 301.

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

As an embodiment, the first signaling in this application is generated in the RRC 306.

As an example, the second signal in this application is generated in the PHY 301.

As an example, the second signal in this application is generated in the MAC 302.

As an embodiment, the second signal in this application is generated in the RRC 306.

As an embodiment, the second signal in this application is generated in the PHY 351.

As an example, the second signal in this application is generated in the MAC 352.

As an embodiment, the third signal in this application is generated in the PHY 351.

As an example, the third signal in this application is generated in the MAC 352.

As an example, the third signal in this application is generated in the PHY 301.

As an example, the third signal in this application is generated in the MAC 302.

As an embodiment, the third signal in this application is generated in the RRC 306.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first node device in this application includes the second communication device 450, and the second node device in this application includes the first communication device 410.

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

As a sub-embodiment of the foregoing embodiment, the first node device is a user equipment, and the second node device is a user equipment.

As a sub-embodiment of the foregoing embodiment, the first node device is a user equipment, and the second node device is a relay node.

As a sub-embodiment of the foregoing embodiment, the first node device is a user equipment, and the second node device is a base station device.

As a sub-embodiment of the foregoing embodiment, the first node device is a relay node, and the second node device is a base station device.

As a sub-embodiment of the foregoing embodiment, the first node device is a base station device, and the second node device is a base station device.

As a sub-embodiment of the above-described embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocols 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 apparatus at least: receiving a first signal; transmitting a second signal in the target time frequency resource set; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

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 result in actions comprising: receiving a first signal; transmitting a second signal in the target time frequency resource set; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting a first signal; receiving a second signal in a target set of time-frequency resources; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first signal; receiving a second signal in a target set of time-frequency resources; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the first signal as described herein.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the second signal as described herein.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the first signaling in this application.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the third signal as described herein.

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first signal in the present application.

As one example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the second signal in the present application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first signaling in the present application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the third signal in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, communication between a first node device U1 and a second node device U2 is over an air interface. In fig. 5, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps.

For the first node device U1, receiving a first signal in step S11; transmitting a second signal in step S12; receiving a third signal in step S13; the first signaling is received in step S14. For the second node device U2, transmitting a first signal in step S21; receiving a second signal in step S22; transmitting a third signal in step S23; the first signaling is sent in step S24. Here, step S13 and step S23 included in the broken line frame F51 are optional, and step S24 and step S14 included in the broken line frame F52 are optional.

In embodiment 5, the first signal is used to determine timing-related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access. The third signal comprises cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets. The first signaling comprises measurement configuration information, the measurement configuration information comprises a target signal index, and the target signal index is used for determining the first type signal set; the phrase "receiving a first signal" includes determining the first signal among the set of signals of the first type.

For one embodiment, the air interface between the second node device U2 and the first node device U1 comprises a PC5 interface.

For one embodiment, the air interface between the second node device U2 and the first node device U1 includes a sidelink.

For one embodiment, the air interface between the second node device U2 and the first node device U1 comprises a Uu interface.

For one embodiment, the air interface between the second node device U2 and the first node device U1 comprises a cellular link.

For one embodiment, the air interface between the second node device U2 and the first node device U1 comprises a wireless interface between a user equipment and a user equipment.

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

As an embodiment, the first node device in this application is a terminal.

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

As an example, the first node device in this application is a vehicle.

As an embodiment, the first node device in this application is an RSU (Road Side Unit).

As an embodiment, the first node device in this application is a base station.

As an embodiment, the second node device in this application is a terminal.

As an embodiment, the second node device in this application is a car.

As an example, the second node device in this application is a vehicle.

As an embodiment, the second node device in this application is an RSU.

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

Example 6

Embodiment 6 illustrates a schematic diagram of a first type of signal and a second signal according to an embodiment of the present application, as illustrated in fig. 6. In fig. 6, the rectangular boxes filled with white and diagonal padding each represent a first type of signal, and the numbers in the boxes represent the numbers of the corresponding first type of signals in chronological order, wherein the ith rectangular box filled with diagonal padding represents the first signal, and i can be any number from 1 to Q1; the grey filled rectangular box represents a second signal, and the time frequency resources occupied by the second signal are a target time frequency resource set. The Q1 signals of the first type in this embodiment are all located within the first time window, and they all belong to the set of signals of the first type. Wherein the Q1 first type signals are each associated to a first index. In fig. 6, the connecting lines and arrows between the first signal and the second signal indicate that the target time-frequency resource set occupied by the second signal can be determined by the first index associated with the first signal.

As an embodiment, the phrase "the first index is used for determining the target set of time-frequency resources" in this application includes that a candidate index set includes a plurality of candidate indexes, and the first index is one of the plurality of candidate indexes; the candidate time-frequency resource group comprises a plurality of candidate time-frequency resource sets, the target time-frequency resource set is one of the candidate time-frequency resource sets, and any one candidate index in the candidate indexes is associated with one candidate time-frequency resource set in the candidate time-frequency resource sets; the target set of time-frequency resources is the candidate set of time-frequency resources associated with the first index in the candidate set of time-frequency resources.

As an embodiment, the phrase "the first index is used to determine the target time-frequency resource set" in this application includes that the number of the time-frequency resource of the target time-frequency resource set is calculated by the first index.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of REs.

For one embodiment, the target set of time-frequency resources includes one slot (slot) in the time domain.

For one embodiment, the target set of time-frequency resources includes one sub-frame in the time domain.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of consecutive multicarrier symbols in the time domain.

For one embodiment, the target set of time-frequency resources includes a positive integer number of consecutive time slots in the time domain.

As an embodiment, the target set of time-frequency resources includes one sub-channel (sub-channel) in the frequency domain.

As an embodiment, the target set of time-frequency resources comprises one PRB in the frequency domain.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of consecutive subcarriers in the frequency domain.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of consecutive PRBs in the frequency domain.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of consecutive sub-channels in the frequency domain.

As an embodiment, the target set of time-frequency resources is a random access resource.

As an embodiment, the first time window comprises a positive integer number of consecutive multicarrier symbols.

As an embodiment, the first time window comprises a positive integer number of consecutive time slots.

As an embodiment, the first time window comprises a positive integer number of consecutive subframes.

As an embodiment, the first time window comprises a time interval between a start time of a first one of the Q1 first type signals to an end time of a last one of the Q1 first type signals.

As an embodiment, the first time window includes all time slots from the time slot where the start time of the first one of the Q1 first type signals is located to the time slot where the end time of the last one of the Q1 first type signals is located.

As an embodiment, the first time window comprises all multicarrier symbols between a starting multicarrier symbol of a first one of the Q1 first type signals to an ending multicarrier symbol of a last one of the Q1 first type signals.

Example 7

Embodiment 7 illustrates a schematic diagram of Q2 candidate signal sets according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the white filled rectangular boxes each represent a signal of the first type, and the numbers within the boxes represent the chronological numbering of the signal of the first type within a set of candidate signals. Fig. 7 illustrates Q2 candidate signal sets in total, where each candidate signal set contains Q1 first type signals.

As an embodiment, the signal group of the first type in the present application includes Q2 candidate signal sets, the Q2 is an integer greater than 1, and the signal group of the first type is one candidate signal set of the Q2 candidate signal sets; any one of the Q2 candidate signal sets comprises a positive integer number of first class signals; all signals of the first type belonging to one of said candidate signal sets are quasi co-located.

As an embodiment, the first signal group in this application is an SSB burst set (SSB burst set).

As an example, the first type signal group in the present application is transmitted within a half frame (half frame).

As an example, the first signal group in this application includes all SSBs transmitted within one half frame.

As an example, the first signal group is transmitted within 5 milliseconds continuously.

As an embodiment, the first signal group is repeatedly transmitted in a first cycle.

As one embodiment, the Q2 candidate signal sets are associated with Q2 candidate indexes, respectively.

As an embodiment, the Q2 candidate indexes are arranged in ascending chronological order.

As one embodiment, the Q2 candidate indexes are integers from 0 to Q2-1, respectively.

As an embodiment, the third signal in the present application is used to determine the candidate index.

For one embodiment, the first candidate signal is any one of the first type signals in the first type signal group.

As a sub-embodiment of the above embodiment, the candidate index associated with the first candidate signal in the present application is related to the value of Q1.

As a sub-embodiment of the above embodiment, the candidate index associated with the first candidate signal in the present application is related to the value of Q2.

As a sub-embodiment of the above embodiment, the candidate index associated with the first candidate signal in the present application and the value of Q1 are in an inverse relationship.

As a sub-embodiment of the foregoing embodiment, there are Q2 possible values of the candidate index associated with the first candidate signal in the present application.

As a sub-embodiment of the above embodiment, the candidate index associated with the first candidate signal in this application is any integer between 0 and Q2-1.

As a sub-embodiment of the above embodiment, the candidate index associated with the first candidate signal in this application is any integer between 1 and Q2.

As a sub-embodiment of the above-mentioned embodiments, the candidate index associated with the first candidate signal in the present application may be determined by the formula floor (j/Q1), where floor () represents a rounding-down operation,/represents a division operation, and j represents a signal number of the first candidate signal.

As a sub-embodiment of the above-mentioned embodiments, the signal number is a number of the first candidate signal in all first type signals included in the first type signal group.

As a sub-embodiment of the above-mentioned embodiment, the signal number is a chronological number of the first candidate signal among all the first type signals included in the first type signal group.

As a sub-embodiment of the above embodiment, the signal number has a total of Q1 × Q2 possible values. .

As a sub-embodiment of the above embodiment, the signal number is any integer between 0 and Q1 × Q2-1.

As a sub-embodiment of the above embodiment, the signal number is any integer between 1 and Q1 × Q2.

Example 8

Embodiment 8 illustrates a schematic diagram of two temporally adjacent candidate signal sets according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the white filled rectangular boxes each represent a signal of the first type. Two temporally adjacent candidate signal sets, candidate signal set i and candidate signal set i +1, respectively, are shown in fig. 8, where i is a positive integer no greater than Q2-1. There is a time interval between candidate signal set i and candidate signal set i +1, during which no signal of the first type is transmitted.

As an example, the Q2 candidate signal sets in this application are discrete in the time domain.

As an embodiment, the sentence "the Q2 candidate signal sets are discrete in the time domain" includes that there is a time interval between any two temporally adjacent candidate signal sets of the Q2 candidate signal sets.

As a sub-embodiment of the above embodiment, no signal of the first type is transmitted during said time interval.

As a sub-embodiment of the above embodiment, the second node device is configured to transmit no signal during the time interval.

As a sub-embodiment of the above-mentioned embodiment, the first node device does not perform signal reception within the time interval.

As a sub-embodiment of the above embodiment, the time interval comprises at least one time slot.

As a sub-embodiment of the above embodiment, the time interval comprises at least one multicarrier symbol.

As a sub-embodiment of the above embodiment, the length of the time interval is fixed.

As a sub-embodiment of the above embodiment, the length of the time interval is dynamic.

As a sub-embodiment of the above embodiment, the length of the time interval is pre-configured.

As a sub-embodiment of the above embodiment, the length of the time interval is determined by a channel sensing operation.

As a sub-embodiment of the above-mentioned embodiment, the second node device performs a channel sensing operation within the time interval.

As a sub-embodiment of the above-mentioned embodiment, the first node device performs a channel sensing operation within the time interval.

Example 9

Embodiment 9 illustrates a schematic diagram of a third signal according to an embodiment of the present application, as shown in fig. 9. In fig. 9, white filled rectangular boxes each represent a first type of signal and gray filled rectangular boxes each represent a third signal. Two temporally adjacent candidate signal sets, candidate signal set i and candidate signal set i +1, respectively, are shown in fig. 9, where i is a positive integer no greater than Q2-1.

As an example, the third signal in the present application includes cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets.

For one embodiment, the second time window is located in a time interval between any two temporally adjacent signals of the first type in any one of the candidate signal sets.

As an embodiment, the third signal is dynamic signaling.

As one embodiment, the third signal is layer 1(L1) signaling.

As an embodiment, the third signal is layer 1(L1) control signaling.

As an embodiment, the third signal is transmitted on a SideLink (SideLink).

As an example, the third signal is transmitted through the PC5 interface.

For one embodiment, the third signal is transmitted on a DownLink (DownLink).

As an embodiment, the third signal is transmitted over a Uu interface.

As an embodiment, the third signal is transmitted by Unicast (Unicast).

As an embodiment, the third signal is transmitted by multicast (Groupcast).

As an example, the third signal is broadcast (borradcast) transmitted.

As an embodiment, the third signal is cell-specific.

As an embodiment, the third signal is user equipment specific.

As an embodiment, the third signal comprises all or part of a higher layer signalling.

As an embodiment, the third signal includes all or part of a Radio Resource Control (RRC) layer signaling.

As an embodiment, the third signal includes one or more fields (fields) in an RRC IE (Information Element).

As an embodiment, the third signal includes one or more fields in a SIB (System information Block).

As an embodiment, the third signal comprises all or part of a MAC layer signaling.

As an embodiment, the third signal includes one or more fields in a MAC CE (Control Element).

For one embodiment, the third signal includes one or more fields in a PHY (Physical layer) layer signaling.

As an example, the third signal includes SCI (Sidelink Control Information).

For one embodiment, the third signal includes one or more fields in one SCI.

For one embodiment, the third signal includes one or more fields in a SCI format.

As an embodiment, the third signal includes DCI (Downlink Control Information).

For one embodiment, the third signal includes one or more fields in one DCI.

As one embodiment, the third signal is semi-statically configured.

As one embodiment, the third signal is dynamically configured.

As an embodiment, the third signal is transmitted on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the third signal is transmitted on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the third signal is transmitted on a psch (Physical Sidelink Shared Channel).

As an embodiment, the third signal is transmitted on a PSCCH (Physical Sidelink Control Channel).

As one embodiment, the third signal includes a DMRS.

As an embodiment, the DMRS comprised by the third signal and the closest signal of the first type preceding the third signal have a quasi co-located relationship.

As an embodiment, the DMRS comprised by the third signal and the closest adjacent first type signal after the third signal have a quasi co-located relationship.

As an embodiment, the third signal and an immediately adjacent one of the first type signals preceding the third signal satisfy a quasi co-location relationship.

As an embodiment, the third signal and an immediate adjacent one of the first type signals after the third signal satisfy a quasi co-location relationship.

Example 10

Embodiment 10 illustrates a schematic diagram of a channel sensing operation according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the white filled rectangular boxes each represent a signal of the first type. Two temporally adjacent candidate signal sets, candidate signal set i and candidate signal set i +1, respectively, are shown in fig. 10, where i is a positive integer no greater than Q2-1. The gray filled graph represents the time taken for the channel sensing operation.

As an embodiment, the time resource occupied by the first signal in the present application is determined by a channel sensing operation; the channel sensing operation includes performing energy detection on a first sub-band, the energy detection being used to determine whether the first sub-band is idle.

As an embodiment, the channel sensing operation includes performing Q3 energy detections in Q3 time sub-pools respectively on the first sub-band, resulting in Q3 detection values, Q3 being a positive integer.

As an embodiment, the Q3 energy detections respectively use the same multi-antenna correlation reception.

For one embodiment, the Q3 energy detections are used to determine whether the first sub-band is Idle (Idle).

For one embodiment, the Q3 energy detections are used to determine whether the first sub-band is usable by the first node for transmitting wireless signals.

For one embodiment, the Q3 energy detections are used to determine whether the first sub-band is usable by the first node to transmit wireless signals that are spatially correlated with the Q3 energy detections.

As an embodiment, the first subband includes a frequency range occupied by a positive integer number of RBs.

As an embodiment, the first sub-band comprises a BWP (bandwidth part).

For one embodiment, the first sub-band includes one carrier component CC (Carrier component).

As an embodiment, the Q3 energy tests are energy tests in LBT (Listen Before Talk ), and the specific definition and implementation of LBT are described in 3GPP TR 36.889.

As an embodiment, the Q3 energy detections are energy detections in CCA (clear channel assessment), and the specific definition and implementation of the CCA are referred to in 3gpp tr 36.889.

As an embodiment, any one of the Q3 energy detections is implemented by measuring RSSI (Received Signal Strength Indication).

As an embodiment, any one of the Q3 time sub-pools is contiguous in occupied time domain resources.

As an example, the Q3 time sub-pools are mutually orthogonal (non-overlapping) two by two in the time domain.

As an example, the duration of any one of the Q3 time sub-pools is one of {16 microseconds, 9 microseconds }.

As an embodiment, there are at least two of the Q3 time sub-pools that are not equal in duration.

As an example, any two of the Q3 time sub-pools may be equal in duration.

As an embodiment, the time domain resources occupied by the Q3 time sub-pools are contiguous.

In an embodiment, at least two of the Q3 time sub-pools occupy time-domain resources that are not contiguous.

As an embodiment, the time domain resources occupied by any two of the Q3 time sub-pools are discontinuous.

As an embodiment, any one of the Q3 time sub-pools is a slot period (slot).

As an embodiment, any of the Q3 time sub-pools except the earliest time sub-pool is a slot period (slot duration).

As an embodiment, at least one of the Q3 time sub-pools has a duration of 16 microseconds.

As an embodiment, at least one of the Q3 time sub-pools has a duration of 9 microseconds.

As one example, the earliest of the Q3 time sub-pools has a duration of 16 microseconds.

As one example, the latest of the Q3 time sub-pools has a duration of 9 microseconds.

As an example, the Q3 time sub-pools include listen times in Cat 4 (fourth type) LBT.

As an embodiment, the Q3 Time sub-pools include slot periods in a delay period (deferrduration) and slot periods in a Backoff Time (Backoff Time) in Cat 4 (fourth type) LBT.

As an embodiment, the Q3 Time sub-pools include a timeslot period in a delay period (deferrduration) in a Type 1UL channel access procedure (first Type uplink channel access procedure) and a timeslot period in a Backoff Time (Backoff Time), and the first node is a user equipment.

As an embodiment, the Q3 time sub-pools include the initial CCA and the slot period in eCCA (enhanced clear channel assessment).

As an embodiment, the Q3 energy detections respectively result in the Q3 detection values.

As one embodiment, the Q3 detection values are the power of all wireless signals the first node perceives (Sense) on the first subband in Q3 time units, respectively, and averages over time to obtain a received power; the Q3 time units are each one of the Q3 time sub-pools of duration.

As a sub-embodiment of the above embodiment, the duration of any one of the Q3 time units is not shorter than 4 microseconds.

As one embodiment, the Q3 detection values are the energy of all wireless signals the first node perceives (Sense) on the first subband in Q3 time units, respectively, and averages over time to obtain the received energy; the Q3 time units are each one of the Q3 time sub-pools of duration.

As an embodiment, any given energy detection of the Q3 energy detections refers to: the first node monitors received power in a given time unit, the given time unit being one of the Q3 time sub-pools for a duration of time corresponding to the given energy detection.

As an embodiment, any given energy detection of the Q3 energy detections refers to: the first node monitors received energy in a given time unit, the given time unit being one of the Q3 time sub-pools for a duration of time corresponding to the given energy detection.

As an embodiment, the spatial parameters of the channel sensing operation are related to spatial parameters of the first signal.

As an embodiment, the spatial parameters of the channel sensing operation are the same as the spatial parameters of the first signal.

As an embodiment, the spatial parameters of the channel sensing operation comprise spatial parameters of the first signal.

For one embodiment, the spatial parameter includes a Transport Configuration Indication (TCI).

For one embodiment, the spatial parameter includes a TCI status.

For one embodiment, the spatial parameter comprises a transmit beam configuration.

For one embodiment, the spatial parameter includes a transmit beamwidth

For one embodiment, the spatial parameter comprises a receive beam configuration.

As one embodiment, the spatial parameter includes a receive beamwidth.

As one embodiment, the spatial parameter includes channel large-scale fading.

For one embodiment, the spatial parameters include a quasi co-location configuration.

As an embodiment, the spatial parameter is associated with a reference signal resource.

As an example, the spatial parameter is associated with an SSB.

Example 11

Embodiment 11 illustrates a schematic diagram of a first signal according to an embodiment of the present application, as shown in fig. 11. In fig. 11, white filled rectangular boxes each represent a first type of signal, diagonal striped filled rectangular boxes represent first signals, and dashed boxes represent first type of signals that are not actually transmitted. Two temporally adjacent candidate signal sets, candidate signal set i and candidate signal set i +1, respectively, are shown in fig. 11, where i is a positive integer no greater than Q2-1. The gray filled graph represents the time taken for the channel sensing operation. In fig. 11, the completion time of channel sensing is T1, and T1 is later than the start time of the first type signal in the candidate signal set i +1, so that the first type signal in the candidate signal set i +1 is not transmitted.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by the channel sensing operation" includes that, if the time domain resource occupied by any first type of signal and the duration of the channel sensing are overlapped, the any first type of signal is not transmitted.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by a channel sensing operation" in this application includes that the time resource occupied by the first signal starts after the channel sensing operation is completed.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by the channel sensing operation" in this application includes that the time resource occupied by the first signal belongs to the remaining time resource after the channel sensing operation is completed and within the first time window.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by the channel sensing operation" in this application includes that the first signal is a first type signal which is located within a first time window after the channel sensing operation is completed.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by the channel sensing operation" in this application includes that the first signal is the last first type signal after the channel sensing operation is completed and within the first time window.

As an embodiment, the phrase "the time resource occupied by the first signal is determined by the channel sensing operation" in this application includes that the first signal is any one of the first type signals after the channel sensing operation is completed and within the first time window.

For one embodiment, the phrase "after the channel sensing operation is completed" includes after the channel sensing operation is successful.

As an embodiment, the phrase "after the channel sensing operation is completed" includes that the channel sensing operation is completed and the result of the channel sensing operation is that the first sub-band may be used.

Example 12

Embodiment 12 illustrates a schematic diagram of a first signal according to an embodiment of the present application, as shown in fig. 12. In fig. 12, the white filled rectangular boxes each represent a first type of signal, the diagonal striped filled rectangular boxes represent first signals, and the dashed boxes represent first type of signals that are not actually transmitted. Two temporally adjacent candidate signal sets, candidate signal set i and candidate signal set i +1, respectively, are shown in fig. 11, where i is a positive integer no greater than Q2-1. The gray filled graph represents the time taken for the channel sensing operation. In fig. 11, the completion time of channel sensing is T1, and T1 is later than the start time of the first type signal in the candidate signal set i +1, so that the first type signal in the candidate signal set i +1 is not transmitted. In this embodiment, the candidate signal set i +1 is a candidate signal set associated with the target signal index included in the first signaling in this application.

As an embodiment, the first signaling in this application includes measurement configuration information, where the measurement configuration information includes a target signal index, and the target signal index is used to determine the first type signal set; the phrase "receiving a first signal" includes determining the first signal among the set of signals of the first type.

As an embodiment, the first signaling is dynamic signaling.

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

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

As an embodiment, the first signaling is transmitted on a SideLink (SideLink).

As an embodiment, the first signaling is transmitted through a PC5 interface.

As an embodiment, the first signaling is transmitted on an Uplink (Uplink).

As an embodiment, the first signaling is transmitted over a Uu interface.

As an embodiment, the first signaling does not include a reference signal.

As an embodiment, the first signaling is Unicast (Unicast) transmission.

As an embodiment, the first signaling is transmitted by multicast (Groupcast).

As an embodiment, the first signaling is transmitted in a broadcast (borradcast).

As an embodiment, the first signaling is cell-specific.

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

As an embodiment, the first signaling comprises all or part of a higher layer signaling.

As an embodiment, the first signaling includes all or part of a Radio Resource Control (RRC) layer signaling.

As an embodiment, the first signaling includes one or more fields (fields) in an RRC IE (Information Element).

As an embodiment, the first signaling includes one or more fields in a SIB (System information Block).

As an embodiment, the first signaling comprises all or part of one MAC layer signaling.

As an embodiment, the first signaling includes one or more fields in a MAC CE (Control Element).

For one embodiment, the first signaling includes one or more fields in a PHY (Physical layer) layer signaling.

As an embodiment, the first signaling includes SCI (Sidelink Control Information).

As an embodiment, the first signaling comprises one or more fields in one SCI.

As an embodiment, the first signaling comprises one or more fields in one SCI format.

As an embodiment, the first signaling includes UCI (Uplink Control Information).

As one embodiment, the first signaling includes one or more fields in one DCI.

As one embodiment, the first signaling is semi-statically configured.

As an embodiment, the first signaling is dynamically configured.

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

As an embodiment, the first signaling is sent on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first signaling is sent on a psch (Physical Sidelink Shared Channel).

As an embodiment, the first signaling is sent on a PSCCH (Physical Sidelink Control Channel).

As an embodiment, the first signaling is sent on a PSFCH (Physical Sidelink Feedback Channel).

For one embodiment, the target signal index is one of the Q2 candidate indexes.

As an embodiment, the sentence "the target signal index is used for determining the first kind of signal set" includes that the candidate index associated with the first kind of signal set is the same as the target signal index.

As an embodiment, the sentence "determining the first signal in the set of first type signals" comprises determining the first signal by blind detection within the first time window.

As an embodiment, the sentence "determining the first signal in the first set of signals" includes receiving position indication information, the position indication information including a number of the first signal in the first set of signals.

As an embodiment, the sentence "determine the first signal in the set of first type signals" includes determining the first signal in the set of first type signals according to preconfigured information, the preconfigured information including a number of the first signal in the set of first type signals.

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus used in a first node device, as shown in fig. 13. In embodiment 13, the first node apparatus processing device 1300 includes a first receiver 1301 and a first transmitter 1302.

For one embodiment, the first receiver 1301 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

For one embodiment, the first transmitter 1302 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

In embodiment 13, the first receiver 1301 receives a first signal; the first transmitter 1302 transmitting a second signal in a target set of time-frequency resources; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the first node device processing apparatus 1300 is a user equipment.

As an embodiment, the first node device processing apparatus 1300 is a relay node.

As an embodiment, the first node device processing apparatus 1300 is a base station.

As an embodiment, the first node device processing apparatus 1300 is an in-vehicle communication device.

As an embodiment, the first node device processing apparatus 1300 is a user device supporting V2X communication.

As an embodiment, the first node device processing apparatus 1300 is a relay node supporting V2X communication.

As an embodiment, the first node device processing apparatus 1300 is a base station device supporting IAB.

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus used in a second node device, as shown in fig. 14. In fig. 14, a second node device processing apparatus 1400 comprises a second transmitter 1401 and a second receiver 1402.

As one example, second transmitter 1401 includes at least one of antenna 420, transmitter/receiver 418, multi-antenna transmit processor 471, transmit processor 416, controller/processor 475, and memory 476 of fig. 4 of the present application.

For one embodiment, the second receiver 1402 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

In embodiment 14, the second transmitter 1401 transmits a first signal; the second receiver 1402 receives a second signal in a target set of time-frequency resources; wherein the first signal is used to determine timing related information; the first class signal set comprises Q1 first class signals, the Q1 is an integer greater than 1, the first signal is one of the Q1 first class signals; the time domain resources occupied by the Q1 first-class signals all belong to a first time window; any two first type signals of the Q1 first type signals are quasi co-located; the Q1 first type signals are each associated to a first index, which is used for determining the target set of time-frequency resources, and the second signal is used for random access.

As an embodiment, the signal group of the first type includes Q2 candidate signal sets, the Q2 is an integer greater than 1, the signal group of the first type is one of the Q2 candidate signal sets; any one of the Q2 candidate signal sets comprises a positive integer number of first class signals; all signals of the first type belonging to one of said candidate signal sets are quasi co-located.

As an embodiment, the Q2 candidate signal sets are discrete in the time domain.

For one embodiment, the second transmitter transmits a third signal, the third signal including cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets.

As one embodiment, the first index is related to the value of Q1.

As an embodiment, the time resource occupied by the first signal is determined by a channel sensing operation; the channel sensing operation includes performing energy detection on a first sub-band, the energy detection being used to determine whether the first sub-band is idle.

As an embodiment, the second transmitter transmits a first signaling, the first signaling including measurement configuration information, the measurement configuration information including a target signal index, the target signal index being used to determine the first type signal set; the phrase "transmitting a first signal" includes determining and transmitting the first signal among the set of signals of the first type.

As an embodiment, the sentence "determine and transmit the first signal in the first type signal set" includes transmitting the first signal on a time-frequency resource occupied by any one of the first type signals within the first time window.

As an embodiment, the sentence "determine and send the first signal in the first type signal set" includes that the second transmitter sends the location indication information, where the location indication information includes a number of the first signal in the first type signal set, and the second transmitter sends the first signal on a time-frequency resource occupied by the first type signal indicated by the number.

As an embodiment, the sentence "determine and send the first signal in the set of first type signals" includes determining the first signal in the set of first type signals and sending the first signal according to preconfigured information, the preconfigured information including a number of the first signal in the set of first type signals.

For an embodiment, the second node device processing apparatus 1400 is a user equipment.

As an embodiment, the second node device processing apparatus 1400 is a base station.

As an embodiment, the second node device processing apparatus 1400 is a relay node.

As an embodiment, the second node device processing apparatus 1400 is a user equipment supporting V2X communication.

As an embodiment, the second node device processing apparatus 1400 is a base station device supporting V2X communication.

As an embodiment, the second node device processing apparatus 1400 is a relay node supporting V2X communication.

As an embodiment, the second node device processing apparatus 1400 is a base station device supporting IAB.

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

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

Claims

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

a first receiver receiving a first signal;

2. The first node device of claim 1, wherein the set of first class signals includes Q2 candidate signal sets, the Q2 is an integer greater than 1, the set of first class signals is one of the Q2 candidate signal sets; any one of the Q2 candidate signal sets comprises a positive integer number of first class signals; all signals of the first type belonging to one of said candidate signal sets are quasi co-located.

3. The first node apparatus of claim 2, wherein the Q2 candidate signal sets are discrete in the time domain.

4. The first node device of any of claims 2 to 3, wherein the first receiver receives a third signal, the third signal comprising cell selection related information; the third signal occupies a second time window in the time domain; the second time window belongs to the time domain resource occupied by one candidate signal set of the Q2 candidate signal sets, and the second time window does not belong to the time domain resource between any two candidate signal sets adjacent in the time domain in the Q2 candidate signal sets.

5. The first node apparatus of any of claims 1 to 4, wherein the first index relates to a value of the Q1.

6. The first node device of any of claims 1 to 5, wherein the time resource occupied by the first signal is determined by a channel sensing operation; the channel sensing operation includes performing energy detection on a first sub-band, the energy detection being used to determine whether the first sub-band is idle.

7. The first node device of any of claims 1 to 6, wherein the first receiver receives first signaling comprising measurement configuration information including a target signal index used to determine the set of signals of the first type; the phrase "receiving a first signal" includes determining the first signal among the set of signals of the first type.

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

a second transmitter which transmits the first signal;

9. A method of a first node device used for wireless communication, comprising:

receiving a first signal;

transmitting a second signal in the target time frequency resource set;

10. A method of a second node device used for wireless communication, comprising:

transmitting a first signal;

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