CN112468271A

CN112468271A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112468271A
Application number: CN201910842925.3A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2021-03-09
Anticipated expiration: 2039-09-06
Also published as: CN112468271B; WO2021043105A1

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node firstly receives a first signaling, then sends a first target signaling and a first signal, and sends a first information block in a target time-frequency resource set; the first signaling is used to determine the first target signaling and the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the receiver of the first information block and the receiver of the first signal are non-co-located. The present application improves the flexibility of transmission of signals including feedback information on the sidelink over the cellular link by employing the first domain to dynamically indicate whether the second domain is associated with the first signaling, thereby improving the spectral efficiency of transmissions on the sidelink.

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 method and apparatus related to a Sidelink (Sidelink) 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 on 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 sessions, and Work on NR starts on 3GPP RAN #75 sessions where WI (Work Item) of NR has passed.

For the rapidly evolving Vehicle-to-evolution (V2X) service, the 3GPP initiated standard formulation and research work under the NR framework. Currently, 3GPP has completed the work of making requirements for the 5G V2X service and has written the standard TS 22.886. The 3GPP defines a 4-large application scenario group (Use Case Groups) for the 5G V2X service, including: automatic queuing Driving (Vehicles platform), Extended sensing (Extended Sensors), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). NR-based V2X technical research has been initiated over 3GPP RAN #80 congress.

Disclosure of Invention

Compared with the existing LTE (Long-term Evolution) V2X system, the NR V2X has a significant feature of supporting unicast and multicast and supporting HARQ (Hybrid automatic Repeat reQuest) function. A PSFCH (Physical Sidelink Feedback Channel) Channel is introduced for HARQ-ACK (Acknowledgement) transmission on the secondary link. The PSFCH resources may be configured or pre-configured periodically as a result of the 3GPP RAN1#96b conference. Meanwhile, at 3GPP RAN1#97 meeting, HARQ-ACK on the sidelink can be reported to eNB through the receiving end of PSFCH to further improve the performance of transmission on the sidelink.

In order to solve the above problem, a simple way is to establish a one-to-one relationship between the time domain position occupied by the DCI configuring V2X and the time domain position for transmitting the cellular signal including the secondary link feedback. However, in V2X transmission, a UE (User Equipment) may refer to multiple synchronization sources to improve its own synchronization accuracy; meanwhile, one UE can communicate with both the UEs in the coverage and the UEs outside the coverage; considering various factors such as that the base station can continuously configure the transmission of a plurality of V2X to reduce the overhead of configuration signaling, the one-to-one correspondence relationship is not necessarily able to be maintained and is not flexible enough.

In view of the above, the present application discloses a solution. It should be noted that, in a non-conflicting situation, the features in the embodiments and embodiments in the first node of the present application may be applied to the second node or the third node; conversely, features in embodiments and embodiments in the second node in the present application may be applied to the first node, or features in embodiments and embodiments in the third node in the present application may be applied to the first node. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

receiving a first signaling;

sending a first target signaling and a first signal;

sending a first information block in a target time frequency resource set;

wherein the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the intended recipient of the first information block and the intended recipient of the first signal are non-co-located.

As an example, the above method has the benefits of: by indicating whether the second domain is associated with the first signaling in the first domain, when the transmission condition of the first signal on the sidelink cannot be reported in the first time-frequency resource set associated with the first signaling in the application, the report can be flexibly adjusted to the target time-frequency resource set to be sent; the method improves the flexibility of transmitting the information including the secondary link feedback on the cellular link.

As an example, the above method has the benefits of: because of the UE processing capability or the time slot misalignment caused by different synchronization sources, when the first time-frequency resource set reserved by the first signaling cannot send the first information block, the UE can send the first information block in another time-frequency resource set, that is, the target time-frequency resource set, thereby avoiding resource waste and delay caused by re-triggering the configuration of V2X once.

According to one aspect of the application, the method described above is characterized by comprising:

receiving a first feedback signal;

wherein the first feedback signal is used to determine whether the first signal was correctly received by the intended recipient of the first signal; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; a sender of the first feedback signal and a sender of the first signaling are non-co-located; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

As an example, the essence of the above method is: the second domain carries HARQ-ACK or HARQ-NACK (Non-Acknowledgement) information transmitted by the first signal on a secondary link.

According to an aspect of the present application, the method is characterized in that the first signaling is used to determine a first set of time-frequency resources, the time-frequency resources included in the target set of time-frequency resources are different from the time-frequency resources included in the first set of time-frequency resources, and the first field is used to indicate a time-domain interval between a starting time of the first set of time-frequency resources in a time domain and a starting time of the target set of time-frequency resources in the time domain.

As an example, the above method has the benefits of: the first set of time-frequency resources is resources reserved by the first signaling and used for reporting feedback of the first signal on a cellular link, and when the first node cannot report the first information block in the first set of time-frequency resources, the first node needs to inform a second node in the application of a position of a resource actually occupied by the first information block, that is, a position of the target set of time-frequency resources.

According to an aspect of the application, the above method is characterized in that the first signaling is used to determine K1 candidate sets of time-frequency resources, the target set of time-frequency resources is one of the K1 candidate sets of time-frequency resources, the first set of time-frequency resources is one of the K1 candidate sets of time-frequency resources; the K1 is a positive integer greater than 1.

As an example, the above method has the benefits of: the K1 candidate time frequency resource sets are triggered by the first signaling, so that the K1 candidate time frequency resource sets are linked with the first signaling, further, HARQ feedback transmitted by V2X configured by the first signaling can be transmitted in any one of the K1 candidate time frequency resource sets, a plurality of cellular link resources are configured for feedback of a secondary link, and further, the transmission opportunity and the transmission performance of the HARQ feedback on the cellular link are ensured.

receiving a second signaling;

sending a second target signaling and a second signal;

receiving a second feedback signal;

wherein the second signaling is used to determine the second target signaling and the second signal, the second target signaling including configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

As an example, the above method has the benefits of: the second domain can also include the second feedback signal, so that the flexibility of information carried by the second domain is improved, and the second domain can transmit HARQ feedback corresponding to a plurality of V2X processes, thereby realizing multiplexing of a plurality of sidelink HARQ feedback on one cellular link channel.

According to an aspect of the application, the above method is characterized in that the second signaling is used to determine K2 candidate sets of time-frequency resources, the K2 is a positive integer greater than 1, and the target set of time-frequency resources is one of the K2 candidate sets of time-frequency resources.

As an example, the above method has the benefits of: one piece of DCI comprising V2X configuration is associated with resources of a plurality of cellular links, so that the HARQ feedback of the secondary link has multiple transmission opportunities on the cellular link, and the transmission performance of the HARQ feedback of the secondary link is improved.

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

sending a first signaling;

receiving a first information block in a target time frequency resource set;

wherein the first signaling is used to determine a first target signaling and a first signal; a sender of the first information block sends the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the second node and the intended recipient of the first signal are non-co-located.

According to one aspect of the application, the above method is characterized in that the sender of the first information block receives a first feedback signal; the first feedback signal is used to determine whether the first signal was correctly received by the intended recipient of the first signal; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; a sender of the first feedback signal and a sender of the first signaling are non-co-located; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

sending a second signaling;

wherein the second signaling is used to determine the second target signaling and the second signal, a target recipient of the first signaling sends the second target signaling and the second signal, and a target recipient of the first signaling receives a first feedback signal and a second feedback signal; the second target signaling comprises configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

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

receiving a first target signaling and a first signal;

sending a first feedback signal;

wherein a sender of the first target signaling receives first signaling, the first signaling being used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the sender of the first target signaling sends a first information block in a target time-frequency resource set; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the target recipient of the first block of information and the third node are non-co-located; the first feedback signal is used to determine whether the first signal was correctly received by the third node; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

receiving a second target signaling and a second signal;

sending a second feedback signal;

wherein a sender of the second target signaling receives second signaling, the second signaling being used to determine the second target signaling and the second signal, the second target signaling including configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by the third node; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

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

a first receiver receiving a first signaling;

a first transceiver to transmit a first target signaling and a first signal;

a first transmitter for transmitting a first information block in a target set of time-frequency resources;

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

a second transmitter for transmitting the first signaling;

a second receiver for receiving the first information block in the target set of time-frequency resources;

The application discloses be used for wireless communication's third node, its characterized in that includes:

a third receiver receiving the first target signaling and the first signal;

a third transmitter to transmit the first feedback signal;

wherein a sender of the first target signaling receives first signaling, the first signaling being used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the sender of the first target signaling sends a first information block in a target time-frequency resource set; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the target recipient of the first block of information and the third node are non-co-located; the first feedback signal is used to determine whether the first signal was correctly received by the third node; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of the time frequency resource occupied by the first target signaling or the time frequency resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

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

by indicating in the first domain whether the second domain is associated with the first signaling, when the first time-frequency resource set in the application associated with the first signaling cannot report the transmission condition of the first signal on the sidelink, the report can be flexibly adjusted to the target time-frequency resource set for transmission; the method improves the transmission flexibility of the information including the secondary link feedback on the cellular link;

because of the UE processing capability or the time slots that are not aligned due to different synchronization sources, when the first time-frequency resource set reserved by the first signaling cannot send the first information block, the UE can send the first information block in another time-frequency resource set, that is, the target time-frequency resource set, thereby avoiding resource waste and delay caused by re-triggering the configuration of V2X once;

the first set of time-frequency resources is resources reserved by the first signaling and used for reporting feedback of the first signal on a cellular link, and when the first node cannot report the first information block in the first set of time-frequency resources, the first node needs to inform a second node in the application of a position of a resource actually occupied by the first information block, that is, a position of the target set of time-frequency resources, so as to ensure accuracy of receiving the first information block;

triggering, by the first signaling, the K1 candidate time-frequency resource sets to establish a connection between the K1 candidate time-frequency resource sets and the first signaling, so that HARQ feedback transmitted by V2X configured by the first signaling can be transmitted in any candidate time-frequency resource set of the K1 candidate time-frequency resource sets, and multiple cellular link resources are configured for feedback of a secondary link, thereby ensuring transmission opportunity and transmission performance of the HARQ feedback on the cellular link.

Drawings

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

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

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

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

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

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

fig. 6 shows a schematic diagram of given signaling, given target signaling and given signals according to an embodiment of the application;

fig. 7 shows a schematic diagram of a first information block and a first signaling according to an embodiment of the application;

FIG. 8 shows a schematic diagram of a first set of time-frequency resources and a target set of time-frequency resources according to an embodiment of the present application;

fig. 9 shows a schematic diagram of K1 candidate sets of time-frequency resources and K2 candidate sets of time-frequency resources according to an embodiment of the application;

FIG. 10 shows a block diagram of a structure used in a first node according to an embodiment of the present application;

fig. 11 shows a block diagram of a structure used in a second node according to an embodiment of the present application;

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first signaling in step 101; transmitting a first target signaling and a first signal in step 102; the first information block is transmitted in the target set of time-frequency resources in step 103.

In embodiment 1, the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the intended recipient of the first information block and the intended recipient of the first signal are non-co-located.

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

As one embodiment, the first signaling is UE-specific.

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

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

As one embodiment, the first signaling is sent over a cellular link.

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

As an embodiment, the Physical layer Channel carrying the first signaling includes a PDCCH (Physical Downlink Control Channel).

As an embodiment, a DCI Format (Format) adopted by the first signaling is Format 5.

As an embodiment, the first signaling is used to carry configuration about a sidelink from the second node in the present application.

As an embodiment, the first signaling is used to determine a time domain resource occupied by the first target signaling.

As an embodiment, the first signaling is used to determine a frequency domain resource occupied by the first target signaling.

As an embodiment, the first signaling is used to indicate a time domain resource occupied by the first target signaling.

As an embodiment, the first signaling is used to indicate a frequency domain resource occupied by the first target signaling.

As an embodiment, the first signaling is used to determine a time domain resource occupied by the first signal.

As an embodiment, the first signaling is used to determine frequency domain resources occupied by the first signal.

As an embodiment, the first signaling is used to indicate a configuration parameter Set for the first target signaling, where the configuration parameter Set of the first target signaling includes at least one of occupied frequency domain resources, occupied time domain resources, a sequence for scrambling CRC (Cyclic Redundancy Check), Aggregation Level (Aggregation Level), Search Space (Search Space), or core Resource Set (Control Resource Set).

As an embodiment, the first signaling is used to indicate a configuration parameter set for the first signal, where the configuration parameter set of the first signal includes at least one of occupied frequency domain resources, occupied time domain resources, adopted MCS (Modulation and Coding Scheme), adopted RV (Redundancy Version), NDI (New Data Indicator), or HARQ process number.

As an embodiment, the first signaling is used to indicate M1 sets of first class time frequency resources, and the first node determines itself one set of first class time frequency resources among the M1 sets of first class time frequency resources to send the first target signaling; the M1 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, any one of the M1 first-class time-frequency Resource sets includes a positive integer number of REs (Resource elements).

As an embodiment, the first signaling is used to indicate M2 sets of second-type time-frequency resources, and the first node determines one set of second-type time-frequency resources among the M2 sets of second-type time-frequency resources to transmit the first signal by itself; the M2 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, any one of the M2 sets of second-type time frequency resources includes a positive integer number of REs.

As an embodiment, the first signaling is used to indicate M3 MCSs, the first node self-determines one MCS among the M3 MCSs to use for transmitting the first signal; the M3 is a positive integer greater than 1.

As an embodiment, the configuration information of the first signal includes: at least one of occupied frequency domain resources, occupied time domain resources, adopted MCS, adopted RV, NDI or HARQ process number.

As an embodiment, the configuration information of the first signal includes: at least one of a Zone identification (Zone ID) of a sender of the first signaling, an identification of the sender of the first signaling, and an identification of the first node.

As an embodiment, the first target signaling includes a first sub signaling and a second sub signaling, and the configuration information of the first signal is transmitted in the first sub signaling, or the configuration information of the first signal is transmitted in the second sub signaling.

As an embodiment, the first target signaling includes a first sub signaling and a second sub signaling, a part of configuration information in the configuration information of the first signal is transmitted in the first sub signaling, and another part of configuration information in the configuration information of the first signal is transmitted in the second sub signaling.

As an embodiment, the first target signaling is used for scheduling the first signal.

As an embodiment, the first target signaling is a SCI (Sidelink Control Information).

As an embodiment, the Physical layer Channel carrying the first target signaling comprises a PSCCH (Physical Sidelink Control Channel)

As an embodiment, the Physical layer Channel carrying the first signal includes a psch (Physical Sidelink Shared Channel).

As an embodiment, the transport layer Channel carrying the first signal includes SL-SCH (Sidelink Shared Channel).

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

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

As an embodiment, the Physical layer signaling carrying the first information block includes a PUCCH (Physical Uplink Control Channel).

As an embodiment, the Physical layer signaling carrying the first information block includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first Information block generates a UCI (Uplink Control Information).

As one embodiment, the first information block is used to transmit feedback for a sidelink over a cellular link.

As a sub-embodiment of this embodiment, the feedback comprises HARQ-ACK on the secondary link.

As a sub-embodiment of this embodiment, the feedback comprises HARQ-NACKs on the secondary link.

As a sub-embodiment of this embodiment, the feedback includes CSI (Channel State Information) on the secondary link.

As a sub-embodiment of this embodiment, the feedback includes a CQI (Channel Quality Indicator) on the secondary link.

As a sub-embodiment of this embodiment, the feedback includes an RI (Rank Indicator) on the sidelink.

As an embodiment, the first domain is used to explicitly indicate whether the second domain is associated with the first signaling.

As an embodiment, the first signaling comprises a first identity and the second domain is associated to the first signaling when the first domain comprises the first identity, the first identity being a positive integer.

As a sub-embodiment of this embodiment, the first identifier is a HARQ Process Number (Process Number).

As a sub-embodiment of this embodiment, the first identifier is used to indicate the first signaling from X1 first-type signaling, and X1 is a positive integer greater than 1.

As an auxiliary embodiment of the sub-embodiment, any one of the X1 first-type signaling is a DCI.

As an auxiliary embodiment of this sub-embodiment, any two first type signaling of the X1 first type signaling are orthogonal in the time domain.

As an additional embodiment of this sub-embodiment, the X1 first type signaling are orthogonal in the time domain.

As one embodiment, the first target signaling and the first signal are transmitted on a sidelink.

As an embodiment, the target recipient of the first information block is the second node in the present application.

As an embodiment, the target recipient of the first signal is a node other than the second node in the present application.

As an embodiment, the target recipient of the first information block is a recipient of the first information block expected by the first node in the present application.

As an embodiment, the target recipient of the first signal is a recipient of the first signal expected by the first node in the present application.

As one embodiment, a target recipient of the first target signaling and the target recipient of the first signal are the same.

As one embodiment, a target recipient of the first target signaling and the target recipient of the first signal are non-co-located.

As an embodiment, a target recipient of the first target signaling and the target recipient of the first signal are both the third node in this application.

As one embodiment, a target recipient of the first target signaling includes a plurality of nodes, one of the plurality of nodes being the target recipient of the first signal.

As an embodiment, the target recipient of the first information block is identified by a feature ID carried by the first information block.

As one embodiment, the target recipient of the first signal is identified by a feature ID carried by the first signal.

As one embodiment, the target recipient of the first information block is identified by a scrambling sequence used for the first information block.

As one embodiment, the target recipient of the first signal is identified by a scrambling sequence used for the first signal.

For one embodiment, the target set of time-frequency resources comprises one or more PUCCH resources.

As an embodiment, the target recipient of the first information block and the target recipient of the first signal are the second node and the third node, respectively, in this application, the second node and the third node being non-co-located.

As an example, the above phrase that the second node and the third node are non-co-located means including: the second node and the third node are respectively located at different geographic locations.

As an example, the above phrase that the second node and the third node are non-co-located means including: the second node and the third node are two different wireless communication nodes, respectively.

As an example, the above phrase that the second node and the third node are non-co-located means including: the second node and the third node are two different devices, respectively.

As an example, the above phrase that the second node and the third node are non-co-located means including: there is no wired connection between the second node and the third node.

As an embodiment, the first signaling comprises a user identity of the first node.

As an embodiment, the first signaling includes a user identity of the third node in the present application.

As an embodiment, the first target signaling includes a user identity of the first node.

As an embodiment, the first target signaling includes a user identity of the third node in the present application.

As one embodiment, the first domain includes a user identification of the first node.

As an embodiment, the first node and the third node in this application are simultaneously served by a given Serving Cell (Serving Cell), and an attached base station of the given Serving Cell is the second node in this application.

As an embodiment, the first node in this application is served by a given Serving Cell (Serving Cell), the attached base station of the given Serving Cell is the second node in this application, and the third node in this application is not served by the given Serving Cell.

As an embodiment, the secondary link refers to a wireless link between terminals.

As an example, the cellular link described in this application is a radio link between a terminal and a base station.

As an example, the sidelink in the present application corresponds to PC (Proximity Communication) 5 port.

As an embodiment, the cellular link in this application corresponds to a Uu port.

As one example, the sidelink in this application is used for V2X communication.

As an example, the cellular link in the present application is used for cellular communication.

As an embodiment, the first signaling is configuration signaling for V2X mode 1 transmission.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, and includes one UE241 in sidelink communication with the UE201, an NG-RAN (next generation radio access Network) 202, an EPC (Evolved Packet Core)/5G-CN (5G-Core Network) 210, an HSS (Home Subscriber Server) 220, and an internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

As an embodiment, the UE241 corresponds to the third node in this application.

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

For one embodiment, the air interface between the UE201 and the UE241 is a PC-5 interface.

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

As an embodiment, the radio link between the UE201 and the UE241 is a sidelink.

As an embodiment, the first node in this application is a terminal within the coverage of the gNB 203.

As an embodiment, the third node in this application is a terminal within the coverage of the gNB 203.

As an embodiment, the third node in this application is a terminal outside the coverage of the gNB 203.

For one embodiment, the UE201 and the UE241 support unicast transmission.

For one embodiment, the UE201 and the UE241 support broadcast transmission.

As an embodiment, the UE201 and the UE241 support multicast transmission.

As an embodiment, the first node and the third node belong to one V2X Pair (Pair).

As one embodiment, the first node is a car.

As one embodiment, the first node is a vehicle.

As an embodiment, the first node is an RSU.

For one embodiment, the first node is a group head of a terminal group.

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

As an embodiment, the second node is a serving cell.

As an example, the third node is a vehicle.

As an example, the third node is a car.

As an example, the third node is an RSU (Road Side Unit).

As an example, the third node is a Group Header (Group Header) of a terminal Group.

As an embodiment, the first node has GPS (Global Positioning System) capability.

As one embodiment, the third node has GPS capability.

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 first communication node device (UE, RSU in gbb or V2X) and the second communication node device (gbb, RSU in UE or V2X), or the control plane 300 between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first and second communication node devices and the two UEs 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 in this application.

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

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the second signaling is generated at the RRC 306.

For one embodiment, the second target signaling is generated in the PHY301 or the PHY 351.

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

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

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

For one embodiment, the first information block is generated in the PHY301 or the PHY 351.

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

Example 4

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

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

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

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

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

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

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

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication device 450 apparatus at least: receiving a first signaling, sending a first target signaling and a first signal, and sending a first information block in a target time-frequency resource set; the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the intended recipient of the first information block and the intended recipient of the first signal are non-co-located.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first signaling, sending a first target signaling and a first signal, and sending a first information block in a target time-frequency resource set; the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the intended recipient of the first information block and the intended recipient of the first signal are non-co-located.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: sending a first signaling, and receiving a first information block in a target time frequency resource set; the first signaling is used to determine a first target signaling and a first signal; a sender of the first information block sends the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the second node and the intended recipient of the first signal are non-co-located.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling, and receiving a first information block in a target time frequency resource set; the first signaling is used to determine a first target signaling and a first signal; a sender of the first information block sends the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the second node and the intended recipient of the first signal are non-co-located.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: receiving a first target signaling and a first signal; and transmitting a first feedback signal; a sender of the first target signaling receives first signaling, the first signaling being used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the sender of the first target signaling sends a first information block in a target time-frequency resource set; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the target recipient of the first block of information and the third node are non-co-located; the first feedback signal is used to determine whether the first signal was correctly received by the third node; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of the time frequency resource occupied by the first target signaling or the time frequency resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first target signaling and a first signal; and transmitting a first feedback signal; a sender of the first target signaling receives first signaling, the first signaling being used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the sender of the first target signaling sends a first information block in a target time-frequency resource set; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the target recipient of the first block of information and the third node are non-co-located; the first feedback signal is used to determine whether the first signal was correctly received by the third node; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of the time frequency resource occupied by the first target signaling or the time frequency resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

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

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

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

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

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

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

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

As one implementation, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to transmit a first target signaling and a first signal; at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 is configured to receive a first target signaling and a first signal.

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

For one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive a first feedback signal; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 is configured to send a first feedback signal.

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

As one implementation, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 is configured to transmit a second target signaling and a second signal; at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 is configured to receive a second target signaling and a second signal.

For one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 is configured to receive a second feedback signal; at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 is configured to send a second feedback signal.

Example 5

Embodiment 5 illustrates a flow chart of the first signaling, as shown in fig. 5. In fig. 5, communication between the first node U1 and the second node N2 is over a cellular link, and communication between the first node U1 and the third node U3 is over a sidelink.

For theFirst node U1Receiving a first signaling in step S10; receiving a second signaling in step S11; transmitting first target signaling and a first signal in step S12; transmitting second target signaling and a second signal in step S13; receiving a first feedback signal in step S14; receiving a second feedback signal in step S15; in step S16, the first information block is sent in the target set of time-frequency resources.

For theSecond node N2Transmitting a first signaling in step S20; transmitting a second signaling in step S21; a first information block is received in the target set of time-frequency resources in step S22.

For theThird node U3Receiving a first target signaling and a first signal in step S30; receiving a second target signaling and a second signal in step S31; transmitting a first feedback signal in step S32; the second feedback signal is sent in step S33.

In embodiment 5, the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the second node N2 and the third node U3 are non-co-located; the first feedback signal is used to determine whether the first signal is properly received by the third node U3; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of a time domain resource or a frequency domain resource occupied by the first target signaling is used for determining an air interface resource occupied by the first feedback signal, or at least one of a time domain resource or a frequency domain resource occupied by the first signal is used for determining an air interface resource occupied by the first feedback signal; the second signaling is used to determine the second target signaling and the second signal, the second target signaling includes configuration information of the second signal, the second feedback signal is used to determine that the second signal is correctly received by the third node U3; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

For one embodiment, a physical layer channel carrying the first feedback signal comprises a PSFCH.

For one embodiment, the first feedback signal is transmitted on a secondary link.

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

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

As an embodiment, the first signaling is used to determine a time domain resource occupied by the first feedback signal.

As an embodiment, the first signaling is used to determine frequency domain resources occupied by the first feedback signal.

As an embodiment, the first target signaling is used to determine a time domain resource occupied by the first feedback signal.

As an embodiment, the first target signaling is used to determine frequency domain resources occupied by the first feedback signal.

As an embodiment, the time domain resource occupied by the first signal is used to determine the time domain resource occupied by the first feedback signal.

As an embodiment, the frequency domain resources occupied by the first signal are used to determine the frequency domain resources occupied by the first feedback signal.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: a block of bits carried by the first feedback signal is used to generate the second domain.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: the second field includes a block of bits carried by the first feedback signal.

As a sub-embodiment of the two above embodiments, the bit block carried by the first feedback signal is used to indicate whether the first signal is correctly received by the third node U3.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: the information block carried by the first feedback signal is used to generate the second domain.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: the second field includes information blocks carried by the first feedback signal.

As a sub-embodiment of the two above embodiments, the information block carried by the first feedback signal is used to indicate whether the first signal is correctly received by the third node U3.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: the first feedback signal is used to generate the second domain.

As an example, the phrase above where the first feedback signal is used to determine the meaning of the second domain includes: the second domain includes the first feedback signal.

As an embodiment, the time-frequency resource occupied by the first target signaling is used to determine the air interface resource occupied by the first feedback signal.

As an embodiment, the time-frequency resource occupied by the first signal is used to determine the air interface resource occupied by the first feedback signal.

As an embodiment, the time-frequency resource occupied by the first target signaling and the time-frequency resource occupied by the first signal are commonly used to determine the air interface resource occupied by the first feedback signal.

As an embodiment, the air interface resource described in this application includes a time domain resource.

As an embodiment, the air interface resource described in this application includes a frequency domain resource.

As an embodiment, the air interface resource described in this application includes a code domain resource.

As an embodiment, the air interface resources described in this application include spatial domain resources.

As an embodiment, the first signaling is used to determine a first set of time-frequency resources, the target set of time-frequency resources includes time-frequency resources different from time-frequency resources included in the first set of time-frequency resources, and the first field is used to indicate a time-domain interval between a starting time of the first set of time-frequency resources in a time domain and a starting time of the target set of time-frequency resources in the time domain.

As a sub-embodiment of this embodiment, the time interval is equal to a positive integer number of multicarrier symbols.

As a sub-embodiment of this embodiment, the time interval is equal to a positive integer number of time slots.

As a sub-embodiment of this embodiment, the first signaling is used to explicitly indicate a time domain resource occupied by the first set of time and frequency resources.

As a sub-embodiment of this embodiment, the first signaling is used to explicitly indicate frequency domain resources occupied by the first set of time-frequency resources.

As a sub-embodiment of this embodiment, the first signaling is used to implicitly indicate the time domain resources occupied by the first set of time frequency resources.

As a sub-embodiment of this embodiment, the first signaling is used to implicitly indicate frequency domain resources occupied by the first set of time-frequency resources.

As a sub-embodiment of this embodiment, the first set of time-frequency resources comprises one or more PUCCH resources.

As a sub-embodiment of this embodiment, the first set of time-frequency resources includes a positive integer number of REs.

As a sub-embodiment of this embodiment, the above phrase that the time domain resource included in the target time-frequency resource set is different from the time domain resource included in the first time-frequency resource set means that: and the time domain resources occupied by the target time frequency resource set are orthogonal to the time domain resources occupied by the first time frequency resource set.

As a sub-embodiment of this embodiment, the time domain resource occupied by the target time-frequency resource set is later in the time domain than the time domain resource occupied by the first time-frequency resource set.

As a sub-embodiment of this embodiment, the first node U1 indicates, through the first domain, an offset between the first set of time-frequency resources and the target set of time-frequency resources, and thus indicates that the target set of time-frequency resources is associated to the first signaling, to indicate to the second node N2 that the second domain is associated to the first signaling.

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

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

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

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

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

As an embodiment, the first signaling is used to determine K1 candidate sets of time-frequency resources, the target set of time-frequency resources is one of the K1 candidate sets of time-frequency resources, the first set of time-frequency resources is one of the K1 candidate sets of time-frequency resources; the K1 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, the first field is used to indicate the number of candidate sets of time-frequency resources for which the target set of time-frequency resources is offset in the time domain relative to the first set of time-frequency resources.

As a sub-embodiment of this embodiment, the first signaling is used to indicate one of the K1 candidate time-frequency resource sets that is located at the earliest time domain.

As an additional embodiment of this sub-embodiment, the first signaling is used to indicate a time domain resource occupied by the candidate time-frequency resource set located at the earliest time domain.

As an additional embodiment of this sub-embodiment, the first signaling is used to indicate frequency domain resources occupied by the candidate time-frequency resource set located at the earliest time domain.

As a sub-embodiment of this embodiment, the K1 candidate sets of time-frequency resources are K1 sets of N1 sets of time-frequency resources that are consecutive in the time domain, and the first signaling is used to indicate a first set of time-frequency resources in the time domain of the consecutive K1 sets of time-frequency resources; the N1 is a positive integer greater than the K1.

As an additional embodiment of this sub-embodiment, the N1 sets of time-frequency resources are configured by higher layer signaling.

As an auxiliary embodiment of this sub-embodiment, the N1 sets of time-frequency resources are configured through RRC signaling.

As a sub-embodiment of this embodiment, the first signaling is used to indicate a time domain resource occupied by any one of the K1 candidate time frequency resource sets.

As a sub-embodiment of this embodiment, the first signaling is used to indicate frequency domain resources occupied by at least one of the K1 candidate sets of time-frequency resources.

As a sub-embodiment of this embodiment, the K1 candidate sets of time-frequency resources are configured by higher layer signaling, or the K1 candidate sets of time-frequency resources are configured by RRC signaling, and the first signaling is used to Enable (Enable) the K1 candidate sets of time-frequency resources.

As an additional embodiment of this sub-embodiment, the phrase "said first signaling is used to Enable (Enable) said K1 candidate sets of time-frequency resources" mentioned above means including: the first signaling is used to indicate that the second node N2 in this application will start detecting information in the K1 sets of candidate time-frequency resources that is used to indicate whether a first bit block, which is used to generate the first signal, was received correctly.

As an additional embodiment of this sub-embodiment, the phrase "said first signaling is used to Enable (Enable) said K1 candidate sets of time-frequency resources" mentioned above means including: the first signaling is used to indicate that the first node U1 in the present application is able to start sending information in the K1 set of candidate time-frequency resources that is used to represent whether a first bit block is correctly received, the first bit block being used to generate the first signal.

As an example of the above two subsidiary embodiments, the second field comprises the information used to indicate whether the first bit block was received correctly.

As a sub-embodiment of this embodiment, any one of the K1 candidate sets of time-frequency resources includes one or more PUCCH resources.

As a sub-embodiment of this embodiment, any one of the K1 candidate sets of time-frequency resources includes a positive integer number of REs.

As a sub-embodiment of this embodiment, the first set of time-frequency resources is the earliest candidate set of time-frequency resources in the time domain among the K1 candidate sets of time-frequency resources.

As an embodiment, the second signaling is RRC signaling.

As one embodiment, the second signaling is UE-specific.

As an embodiment, the second signaling is higher layer signaling.

As an embodiment, the second signaling is a DCI.

As one embodiment, the second signaling is sent over a cellular link.

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

As an embodiment, the physical layer channel carrying the second signaling comprises a PDCCH.

As an embodiment, a DCI Format (Format) adopted by the second signaling is Format 5.

As an embodiment, the second signaling is used to carry the configuration for the sidelink from the second node N2.

As an embodiment, the second signaling is used to determine a time domain resource occupied by the second target signaling.

As an embodiment, the second signaling is used to determine a frequency domain resource occupied by the second target signaling.

As an embodiment, the second signaling is used to indicate a time domain resource occupied by the second target signaling.

As an embodiment, the second signaling is used to indicate a frequency domain resource occupied by the second target signaling.

As an embodiment, the second signaling is used to determine a time domain resource occupied by the second signal.

As an embodiment, the second signaling is used to determine frequency domain resources occupied by the second signal.

As an embodiment, the second signaling is used to indicate a configuration parameter set for the second target signaling, the configuration parameter set of the second target signaling includes at least one of occupied frequency domain resources, occupied time domain resources, a sequence for scrambling CRC, an aggregation level, a search space, or CORESET.

As an embodiment, the second signaling is used to indicate a set of configuration parameters for the second signal, the set of configuration parameters for the second signal including at least one of occupied frequency domain resources, occupied time domain resources, adopted MCS, adopted RV, NDI, or HARQ process number.

As an embodiment, the second signaling is used to indicate M3 sets of third-type time-frequency resources, and the first node U1 determines a set of third-type time-frequency resources among the M3 sets of third-type time-frequency resources to send the second target signaling; the M3 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, any one of the M3 sets of third-type time frequency resources includes a positive integer number of REs.

As an embodiment, the second signaling is used to indicate M4 sets of fourth type time frequency resources, and the first node U1 determines one set of fourth type time frequency resources among the M4 sets of fourth type time frequency resources to transmit the second signal by itself; the M4 is a positive integer greater than 1.

As a sub-embodiment of this embodiment, any one of the M4 sets of fourth type time frequency resources includes a positive integer number of REs.

As an embodiment, the second signaling is used to indicate M5 candidate MCSs, the first node U1 self-determines one MCS among the M5 MCSs for transmitting the second signal; the M5 is a positive integer greater than 1.

As an embodiment, the configuration information of the second signal includes: at least one of occupied frequency domain resources, occupied time domain resources, adopted MCS, adopted RV, NDI or HARQ process number.

As an embodiment, the configuration information of the second signal includes: at least one of an identification of a region of the second node N2, an identification of the second node N2, and an identification of the first node U1.

As an embodiment, the second target signaling includes third sub signaling and fourth sub signaling, and the configuration information of the second signal is transmitted in the third sub signaling, or the configuration information of the second signal is transmitted in the fourth sub signaling.

As an embodiment, the second target signaling includes a third sub signaling and a fourth sub signaling, a part of configuration information in the configuration information of the second signal is transmitted in the third sub signaling, and another part of configuration information in the configuration information of the second signal is transmitted in the fourth sub signaling.

As an embodiment, the second target signaling is used for scheduling the second signal.

As an embodiment, the second target signaling is a SCI.

As an embodiment, the physical layer channel carrying the second signal comprises a psch.

As an embodiment, the transport layer channel carrying the second signal comprises a SL-SCH.

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

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

As one embodiment, the first domain is used to indicate that the second domain includes the first feedback signal.

As one embodiment, the first domain is used to indicate that the second domain includes the first feedback signal and the second feedback signal.

As an embodiment, the second signaling is sent later than the first signaling.

As an embodiment, the second signaling is used to explicitly indicate a time domain resource occupied by the target time frequency resource set.

As an embodiment, the second signaling is used to explicitly indicate frequency domain resources occupied by the target time-frequency resource set.

As an embodiment, the second signaling is used to implicitly indicate a time domain resource occupied by the target time frequency resource set.

As an embodiment, the second signaling is used to implicitly indicate frequency domain resources occupied by the target time-frequency resource set.

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

For one embodiment, the physical layer channel carrying the second feedback signal comprises a PSFCH.

For one embodiment, the second feedback signal is transmitted on a secondary link.

As one embodiment, the second feedback signal is a wireless signal.

As one embodiment, the second feedback signal is a baseband signal.

As an embodiment, the second signaling is used to determine a time domain resource occupied by the second feedback signal.

As an embodiment, the second signaling is used to determine frequency domain resources occupied by the second feedback signal.

As an embodiment, the second target signaling is used to determine a time domain resource occupied by the second feedback signal.

As an embodiment, the second target signaling is used to determine frequency domain resources occupied by the second feedback signal.

As an embodiment, the time domain resource occupied by the second signal is used for determining the time domain resource occupied by the second feedback signal.

As an embodiment, the frequency domain resources occupied by the second signal are used for determining the frequency domain resources occupied by the second feedback signal.

As an embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, a block of bits carried by the first feedback signal and a block of bits carried by the second feedback signal are commonly used to generate the second domain.

As an embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, the second domain includes a block of bits carried by the first feedback signal and a block of bits carried by the second feedback signal.

As a sub-embodiment of the above two embodiments, the bit block carried by the first feedback signal is used to indicate whether the first signal is correctly received by the third node U3, and the bit block carried by the second feedback signal is used to indicate whether the second signal is correctly received by the third node U3.

As an embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, an information block carried by the first feedback signal and an information block carried by the second feedback signal are commonly used to generate the second domain.

As an embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, the second domain includes an information block carried by the first feedback signal and an information block carried by the second feedback signal.

As a sub-embodiment of the above two embodiments, the information block carried by the first feedback signal is used to indicate whether the first signal is correctly received by the third node U3, and the information block carried by the second feedback signal is used to indicate whether the second signal is correctly received by the third node U3

As one embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, the first feedback signal and the second feedback signal are used together to generate the second domain.

As one embodiment, when the first domain indicates that the second domain includes the first feedback signal and the second feedback signal, the second domain includes the first feedback signal and the second feedback signal.

As an embodiment, the time-frequency resource occupied by the second target signaling is used to determine the air interface resource occupied by the second feedback signal.

As an embodiment, at least one of the time-frequency resources occupied by the second signal is used to determine the air interface resource occupied by the second feedback signal.

As an embodiment, the time-frequency resource occupied by the second target signaling and the time-frequency resource occupied by the second signal are commonly used to determine the air interface resource occupied by the second feedback signal.

As an embodiment, the first signaling comprises a first identity and the second signaling comprises a second identity, the second domain is associated to the first signaling and the second signaling when the first domain comprises the first identity and the second identity, the first identity is a positive integer and the second identity is a positive integer.

As a sub-embodiment of this embodiment, the first identifier and the second identifier are both HARQ process numbers.

As a sub-embodiment of this embodiment, the first identifier is used to indicate the first signaling from X1 first-type signaling, the second identifier is used to indicate the second signaling from X1 first-type signaling, and X1 is a positive integer greater than 1.

As an embodiment, the second target signaling and the second signal are transmitted on a sidelink.

As an embodiment, the second signaling is used to determine K2 candidate sets of time-frequency resources, the K2 being a positive integer greater than 1, the target set of time-frequency resources being one of the K2 candidate sets of time-frequency resources.

As a sub-embodiment of this embodiment, the second signaling is used to indicate one of the K2 candidate time-frequency resource sets that is located at the earliest time domain.

As an additional embodiment of this sub-embodiment, the second signaling is used to indicate a time domain resource occupied by the candidate time-frequency resource set located at the earliest time domain.

As an additional embodiment of this sub-embodiment, the second signaling is used to indicate frequency domain resources occupied by the candidate time-frequency resource set located at the earliest time domain.

As a sub-embodiment of this embodiment, the K2 candidate sets of time-frequency resources are K2 sets of N2 sets of time-frequency resources that are consecutive in the time domain, and the second signaling is used to indicate a first set of time-frequency resources in the time domain of the consecutive K2 sets of time-frequency resources; the N2 is a positive integer greater than the K2.

As an additional embodiment of this sub-embodiment, the N2 sets of time-frequency resources are configured by higher layer signaling.

As an auxiliary embodiment of this sub-embodiment, the N2 sets of time-frequency resources are configured through RRC signaling.

As a sub-embodiment of this embodiment, the second signaling is used to indicate a time domain resource occupied by any one of the K2 candidate time frequency resource sets.

As a sub-embodiment of this embodiment, the second signaling is used to indicate frequency domain resources occupied by at least one of the K2 candidate sets of time-frequency resources.

As a sub-embodiment of this embodiment, the K2 candidate time-frequency resource sets are configured by higher layer signaling, or the K2 candidate time-frequency resource sets are configured by RRC signaling, and the second signaling is used to enable the K1 candidate time-frequency resource sets.

As an additional embodiment of this sub-embodiment, the meaning of the phrase "the second signaling is used to enable the K2 candidate time-frequency resource sets" includes: the second signaling is used to indicate that the second node N2 in the present application will start detecting information in the K2 sets of candidate time-frequency resources that is used to indicate whether a second block of bits is correctly received, which is used to generate the second signal.

As an additional embodiment of this sub-embodiment, the meaning of the phrase "the second signaling is used to enable the K2 candidate time-frequency resource sets" includes: the second signaling is used to indicate that the first node U1 in this application is able to start sending information in the K2 set of candidate time-frequency resources that is used to represent whether a second block of bits is correctly received, which is used to generate the second signal.

As an example of the two subsidiary embodiments described above, when the first field indicates that the second field includes the first feedback signal and the second feedback signal, the second field includes the information used to indicate whether the second bit block is correctly received.

As a sub-embodiment of this embodiment, any one of the K2 candidate sets of time-frequency resources includes one or more PUCCH resources.

As a sub-embodiment of this embodiment, any one of the K2 candidate sets of time-frequency resources includes a positive integer number of REs.

As a sub-embodiment of this embodiment, the target set of time-frequency resources is the earliest candidate set of time-frequency resources in the time domain among the K2 candidate sets of time-frequency resources.

As a sub-embodiment of this embodiment, there are K3 candidate time-frequency resource sets belonging to the K1 candidate time-frequency resource sets and the K2 candidate time-frequency resource sets simultaneously, where the K3 is a positive integer smaller than the K1 and the K2, and the target time-frequency resource set is one of the K3 candidate time-frequency resource sets.

As a sub-embodiment of this embodiment, the time domain resources occupied by the first time-frequency resource set and the time domain resources occupied by the target time-frequency resource set are orthogonal in the time domain.

As a sub-embodiment of this embodiment, there is no time domain resource occupied by any multicarrier symbol belonging to both the first set of time-frequency resources and the target set of time-frequency resources.

As a sub-embodiment of this embodiment, at least one given multicarrier symbol exists, and the given multicarrier symbol does not belong to the time domain resource occupied by the first set of time-frequency resources and the time domain resource occupied by the target set of time-frequency resources at the same time.

As one embodiment, the second node N2 blindly detects the first information block in all of the K1 sets of candidate time-frequency resources.

As an embodiment, the second node N2 blindly detects wireless signals generated by information bits carried by the second feedback signal in all of the K2 sets of candidate time-frequency resources.

As one embodiment, the blind detection includes energy detection.

As one embodiment, the blind detection comprises sequence detection.

As one embodiment, the blind detection comprises coherent detection.

As an embodiment, the second node N2 does not know that the target set of time-frequency resources is the one of the K1 sets of candidate time-frequency resources until the first information block is received.

As an embodiment, when the second field is associated to the first signaling, the second field includes W1 information bits, the W1 information bits are used to indicate whether the first signal is correctly received, the W1 is a positive integer.

As an embodiment, the first field is used to indicate that the second field is associated to the first signaling and the second signaling, the second field includes W2 information bits, the W2 information bits are used to indicate whether the first signal and the second signal are correctly received, the W2 is a positive integer.

Example 6

Embodiment 6 illustrates a schematic diagram of given signaling, given target signaling and given signals according to an embodiment of the present application; as shown in fig. 6. In fig. 6, the given signaling is used to determine the given target signaling and the given signal, and the given target signaling is used to determine the given feedback signal.

As an embodiment, the given signaling is used to determine a time domain resource occupied by the given target signaling.

As an embodiment, the given signaling is used to indicate time domain resources and frequency domain resources occupied by the given signal.

As an embodiment, a time interval between the time slot occupied by the given signaling and the time slot occupied by the given target signaling is not less than a first threshold, and the first threshold is equal to a positive integer number of time slots.

As an embodiment, a time interval between a time slot occupied by the given signal and a time slot occupied by the given feedback signal is not less than a second threshold, and the second threshold is equal to a positive integer number of time slots.

As an embodiment, the given target signaling and the given signal occupy the same time slot.

As an embodiment, the given signaling is the first signaling in this application, the given target signaling is the first target signaling in this application, the given signal is the first signal in this application, and the given feedback signal is the first feedback signal in this application.

As an embodiment, the given signaling is the second signaling in this application, the given target signaling is the second target signaling in this application, the given signal is the second signal in this application, and the given feedback signal is the second feedback signal in this application.

Example 7

Embodiment 7 illustrates a schematic diagram of a first information block and a first signaling according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first signaling is used to determine a first set of time-frequency resources, and the second signaling in this application is used to determine a target set of time-frequency resources in which the first information block is transmitted, the first information block being associated to the first signaling.

As an embodiment, a time interval between the time slot occupied by the first signaling and the time slot occupied by the first time-frequency resource set is not less than a third threshold, where the third threshold is equal to a positive integer number of time slots.

As an embodiment, a time interval between the time slot occupied by the second signaling and the time slot occupied by the target time-frequency resource set is not less than a third threshold, where the third threshold is equal to a positive integer number of time slots.

As an embodiment, the time domain resource occupied by the first signaling and the time domain resource occupied by the second signaling are orthogonal.

Example 8

Embodiment 8 illustrates a schematic diagram of a first set of time-frequency resources and a target set of time-frequency resources according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the first signaling is used to determine a first target signaling and a first signal, and a first feedback signal is HARQ feedback of the first signal on a secondary link; the second signaling is used for determining a second target signaling and a second signal, and a second feedback signal is HARQ feedback of the second signal on a secondary link.

As an embodiment, the second node in the present application determines, according to a second timing, a time slot in which the first time-frequency resource set is located and a time slot in which the target time-frequency resource set is located.

As an embodiment, the first node in the present application determines a time slot in which the first feedback signal is located and a time slot in which the second feedback signal is located according to a first timing.

As a sub-embodiment of the two embodiments described above, the first timing and the second timing are different.

As a sub-embodiment of the above two embodiments, the first timing is a GPS-referenced timing, and the second timing is an uplink timing of the second node.

As an embodiment, the first node cannot send the information bits carried by the first feedback signal in the first set of time-frequency resources according to the uplink timing of the second node.

Example 9

Embodiment 9 illustrates a schematic diagram of K1 candidate sets of time-frequency resources and K2 candidate sets of time-frequency resources according to an embodiment of the present application, as shown in fig. 9. In fig. 9, K3 of the K1 and K2 candidate sets of time-frequency resources are the same; the K3 is a positive integer less than K1 and K2.

As an embodiment, the first field in this application is used to indicate the target set of time-frequency resources from the K1 sets of candidate time-frequency resources.

As an embodiment, the first field in this application is used to indicate the target set of time-frequency resources from the K3 sets of candidate time-frequency resources.

Example 10

Embodiment 10 illustrates a block diagram of the structure in a first node, as shown in fig. 10. In fig. 10, a first node 1000 comprises a first receiver 1001, a first transceiver 1002 and a first transmitter 1003.

A first receiver 1001 that receives a first signaling;

a first transceiver 1002 that transmits a first target signaling and a first signal;

a first transmitter 1003, configured to transmit a first information block in the target time-frequency resource set;

in embodiment 10, the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the intended recipient of the first information block and the intended recipient of the first signal are non-co-located.

For one embodiment, the first transceiver 1002 receives a first feedback signal; the first feedback signal is used to determine whether the first signal was correctly received by the intended recipient of the first signal; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; a sender of the first feedback signal and a sender of the first signaling are non-co-located; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

For one embodiment, the first receiver 1001 receives a second signaling, the first transceiver 1002 transmits a second target signaling and a second signal, and the first transceiver 1002 receives a second feedback signal; the second signaling is used to determine the second target signaling and the second signal, the second target signaling includes configuration information of the second signal, the second feedback signal is used to determine that the second signal is correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

For one embodiment, the first receiver 1001 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the first transceiver 1002 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the receive processor 456, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 of embodiment 4.

As one embodiment, the first transmitter 1003 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 of embodiment 4.

Example 11

Embodiment 11 illustrates a block diagram of the structure in a second node, as shown in fig. 11. In fig. 11, a second node 1100 comprises a second transmitter 1101 and a second receiver 1102.

A second transmitter 1101 that transmits the first signaling;

a second receiver 1102, receiving a first information block in a target set of time-frequency resources;

in embodiment 11, the first signaling is used to determine a first target signaling and a first signal; a sender of the first information block sends the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the second node and the intended recipient of the first signal are non-co-located.

As an embodiment, a sender of the first information block receives a first feedback signal; the first feedback signal is used to determine whether the first signal was correctly received by the intended recipient of the first signal; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; a sender of the first feedback signal and a sender of the first signaling are non-co-located; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

For one embodiment, the second transmitter 1101 transmits a second signaling; the second signaling is used to determine the second target signaling and the second signal, the target recipient of the first signaling sends the second target signaling and the second signal, and the target recipient of the first signaling receives a first feedback signal and a second feedback signal; the second target signaling comprises configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

For one embodiment, the second transmitter 1101 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second receiver 1102 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

Example 12

Embodiment 12 illustrates a block diagram of the structure in a third node, as shown in fig. 12. In fig. 12, the third node 1200 comprises a third receiver 1201 and a third transmitter 1202.

A third receiver 1201 receiving the first target signaling and the first signal;

a third transmitter 1202 that transmits the first feedback signal;

in embodiment 12, a sender of the first target signaling receives first signaling, and the first signaling is used to determine the first target signaling and the first signal; the first target signaling comprises configuration information of the first signal; the sender of the first target signaling sends a first information block in a target time-frequency resource set; the first information block comprises a first field and a second field, the first field being used to indicate whether the second field is associated to the first signaling, the second field being used to indicate whether the first signal was correctly received when the second field is associated to the first signaling; the target recipient of the first block of information and the third node are non-co-located; the first feedback signal is used to determine whether the first signal was correctly received by the third node; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

For one embodiment, the third receiver 1201 receives a second target signaling and a second signal; the third transmitter 1202 transmits a second feedback signal; a sender of the second target signaling receives second signaling, the second signaling being used to determine the second target signaling and the second signal, the second target signaling including configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by the third node; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

As an embodiment, the above method is characterized in that the second signaling is used to determine K2 candidate sets of time-frequency resources, the K2 is a positive integer greater than 1, and the target set of time-frequency resources is one of the K2 candidate sets of time-frequency resources.

For one embodiment, the third receiver 1201 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

For one embodiment, the third transmitter 1202 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

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

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

Claims

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

a first receiver receiving a first signaling;

a first transceiver to transmit a first target signaling and a first signal;

2. The first node of claim 1, wherein the first transceiver receives a first feedback signal; the first feedback signal is used to determine whether the first signal was correctly received by the intended recipient of the first signal; the first feedback signal is used to determine the second domain when the second domain is associated to the first signaling; a sender of the first feedback signal and a sender of the first signaling are non-co-located; at least one of the time domain resource or the frequency domain resource occupied by the first target signaling is used for determining the air interface resource occupied by the first feedback signal, or at least one of the time domain resource or the frequency domain resource occupied by the first signal is used for determining the air interface resource occupied by the first feedback signal.

3. The first node according to claim 1 or 2, wherein the first signaling is used to determine a first set of time-frequency resources, wherein the target set of time-frequency resources comprises time-frequency resources different from time-frequency resources comprised by the first set of time-frequency resources, and wherein the first field is used to indicate a time-domain interval between a starting time of the first set of time-frequency resources in a time domain and a starting time of the target set of time-frequency resources in the time domain.

4. The first node according to any of claims 1-3, wherein the first signaling is used to determine K1 candidate sets of time-frequency resources, wherein the target set of time-frequency resources is one of the K1 candidate sets of time-frequency resources, and wherein the first set of time-frequency resources is one of the K1 candidate sets of time-frequency resources; the K1 is a positive integer greater than 1.

5. The first node according to any of claims 1-4, wherein the first receiver receives second signaling, the first transceiver transmits second target signaling and a second signal, and the first transceiver receives a second feedback signal; the second signaling is used to determine the second target signaling and the second signal, the second target signaling includes configuration information of the second signal, the second feedback signal is used to determine that the second signal is correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

6. The first node of claim 5, wherein the second signaling is used to determine K2 candidate sets of time-frequency resources, wherein K2 is a positive integer greater than 1, and wherein the target set of time-frequency resources is one of the K2 candidate sets of time-frequency resources.

7. A second node for wireless communication, comprising:

a second transmitter for transmitting the first signaling;

8. The second node according to claim 7, wherein the first signaling is used to determine a first set of time-frequency resources, wherein the time-frequency resources included in the target set of time-frequency resources are different from the time-frequency resources included in the first set of time-frequency resources, and wherein the first field is used to indicate a time-domain interval between a starting time of the first set of time-frequency resources in a time domain and a starting time of the target set of time-frequency resources in the time domain.

9. The second node according to claim 7 or 8, characterized in that the first signaling is used to determine K1 candidate sets of time-frequency resources, the target set of time-frequency resources being one of the K1 candidate sets of time-frequency resources, the first set of time-frequency resources being one of the K1 candidate sets of time-frequency resources; the K1 is a positive integer greater than 1.

10. Second node according to any of claims 7 to 9, wherein the second transmitter is arranged to transmit second signalling; the second signaling is used to determine the second target signaling and the second signal, the target recipient of the first signaling sends the second target signaling and the second signal, and the target recipient of the first signaling receives a first feedback signal and a second feedback signal; the second target signaling comprises configuration information of the second signal, the second feedback signal being used to determine that the second signal was correctly received by a sender of the second feedback signal; the second signaling is used to determine the target set of time-frequency resources; the first domain is used to indicate that the second domain includes at least the first feedback signal of the first feedback signal or the second feedback signal.

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

receiving a first signaling;

sending a first target signaling and a first signal;

sending a first information block in a target time frequency resource set;

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

sending a first signaling;

receiving a first information block in a target time frequency resource set;