CN114629604A

CN114629604A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN114629604A
Application number: CN202011433032.2A
Authority: CN
Inventors: 刘瑾; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-06-14

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node performs a first channel sensing; receiving M first-class signaling and N second-class signaling; sending a first signal on a target time frequency resource block; the first alternative time frequency resource block belongs to a target resource pool; the target time frequency resource block belongs to a target resource subset, and the target resource subset belongs to the target resource pool; any one of the M first-type signaling and any one of the N second-type signaling indicate the first alternative time-frequency resource block; any one first-class signaling in the M first-class signaling is different from any one second-class signaling in the N second-class signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset. The method and the device effectively solve the problem of resource coordination conflict under the condition of multiple cooperative users.

Description

Method and apparatus in a node used for wireless communication

Technical Field

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

Background

Starting from LTE (Long Term Evolution), 3GPP (3rd Generation Partner Project) has developed SL (Sidelink) as a direct communication method between users, and completed the first NR SL (New Radio Sidelink) standard of "5G V2X with NR Sidelink" in Rel-16(Release-16, version 16). In Rel-16, NR SL is designed primarily for V2X (Vehicle-To-Everyzing), but it may also be used for Public Safety (Public Safety).

However, due to time constraints, the NR SL Rel-16 cannot fully support the service requirements and working scenarios identified by 3GPP for 5G V2X. The 3GPP will therefore investigate the enhanced NR SL in Rel-17.

Disclosure of Invention

In the Rel-16 system, due to the NR SL distributed system, a User (UE) autonomously selects resources, and a half duplex (i.e., the User cannot simultaneously transmit and receive) or Hidden node (Hidden UE) problem easily causes two transmitting users to occupy the same SL resource to transmit signals to the same receiving User, thereby causing persistent interference and resource collision between users. Introduction of Inter-user coordination (Inter-UE coordination) is a feasible approach to solve resource collision among users. In multicast (Groupcast), a user may receive coordination messages from multiple different collaboration users, and due to different working environments of the multiple different collaboration users, available resources or interference resources provided by the multiple sent coordination messages conflict with each other.

In order to solve the problems, the application discloses a resource selection method for multiple coordination messages, so that coordinated resources among users are effectively utilized, and the problems of half duplex and hidden nodes are solved. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict. Further, although the present application was originally intended for SL, the present application can also be used for UL (Uplink). Further, although the present application was originally directed to single carrier communication, the present application can also be applied to multicarrier communication. Further, although the present application is intended for single antenna communication, the present application can also be used for multiple antenna communication. Further, although the original intention of the present application is directed to the V2X scenario, the present application is also applicable to the communication scenarios between the terminal and the base station, between the terminal and the relay, and between the relay and the base station, and achieves the technical effects in the similar V2X scenario. Furthermore, adopting a unified solution for different scenarios (including but not limited to V2X scenario and terminal to base station communication scenario) also helps to reduce hardware complexity and cost.

It should be noted that the term (telematics) in the present application is explained with reference to the definitions in the 3GPP specification protocol TS36 series, TS37 series and TS38 series, but can also be defined with reference to the IEEE (Institute of Electrical and Electronics Engineers) specification protocol.

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

performing a first channel sensing; receiving M first-type signaling and N second-type signaling, wherein M and N are positive integers;

sending a first signal on a target time frequency resource block;

wherein the first channel sensing is used to determine a target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first candidate time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the problem to be solved by the present application is: the problem that coordination resources conflict with each other is caused by a plurality of coordination users sending a plurality of coordination messages.

As an example, the method of the present application is: an association is established between the resource coordinated among the users and the resource selection.

As an example, the method of the present application is: and establishing association between the resources coordinated among the users and the number of the received signaling indicating the coordinated resources.

As one embodiment, the above method has the advantage of solving the problem of coordinating resource conflicts in the case of multiple collaborating users.

According to an aspect of the application, the method is characterized in that the number of the first type of signaling received by the first node and the number of the second type of signaling are used together to determine whether the first candidate time frequency resource block is selected as the target time frequency resource block.

According to an aspect of the application, the method is characterized in that the first signaling is any one of the M first type signaling; the second signaling is any one of the N second-type signaling; the first signaling is different from the second signaling.

According to one aspect of the present application, the above method is characterized in that the senders of any two of the M first type signaling are non-co-located; the senders of any two of the N second type signaling are non-co-located.

According to an aspect of the application, the above method is characterized in that the magnitude relation between the M and the first value, together with the magnitude relation between the N and the second value, is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset; the first value is predefined or the first value is configurable; the second value is predefined or the second value is configurable.

According to an aspect of the application, the above method is characterized in that the relation between M and N is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

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

sending a first target signaling on the target time frequency resource block;

wherein the first channel sensing is performed in a first resource pool comprising a plurality of time-frequency resource blocks; any one of the plurality of time-frequency resource blocks included in the target resource pool is associated with one time-frequency resource block in the first resource pool; the first alternative time frequency resource block is associated to a first time frequency resource block, the first time frequency resource block being one of the plurality of time frequency resource blocks comprised by the first resource pool; the measurement value for the first time-frequency resource block is not higher than a first threshold value; the first target signaling is used to indicate the target time-frequency resource block; the first target signaling includes a first priority, which is used to determine the first threshold.

According to an aspect of the application, the above method is characterized in that the first node is a user equipment.

According to an aspect of the application, the above method is characterized in that the first node is a relay node.

According to an aspect of the application, the above method is characterized in that the first node is a base station.

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

sending a first type of signaling;

receiving a first target signaling and a first signal on a target time frequency resource block;

wherein the one first type of signaling is used to indicate a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one first type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

According to an aspect of the application, the above method is characterized in that the second node is a user equipment.

According to an aspect of the application, the above method is characterized in that the second node is a relay node.

According to an aspect of the application, the above method is characterized in that the second node is a base station.

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

sending a second type of signaling;

wherein the one second type of signaling is used to indicate a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one second type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

According to one aspect of the application, the above method is characterized in that the third node is a base station.

According to an aspect of the application, the above method is characterized in that the third node is a relay node.

According to an aspect of the application, the above method is characterized in that the third node is a user equipment.

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

a first receiver performing a first channel sensing; receiving M first-type signaling and N second-type signaling, wherein M and N are positive integers;

the first transmitter is used for transmitting a first signal on a target time frequency resource block;

wherein the first channel sensing is used to determine a target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first alternative time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

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

a second transmitter for transmitting a first type of signaling;

the second receiver receives the first target signaling and the first signal on the target time frequency resource block;

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

a third transmitter for transmitting a second type of signaling;

the third receiver receives the first target signaling and the first signal on a target time frequency resource block;

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

the problem to be solved by the present application is: the problem that coordination resources conflict with each other is caused by the fact that a plurality of cooperative users send a plurality of coordination messages.

The application establishes an association between resources coordinated among users and resource selection.

-the application establishes an association between resources coordinated between users and the number of received signalling indicating coordinated resources.

The application solves the problem of coordinating resource conflicts in case of multiple cooperating users.

-in this application, the number of the first type of signaling received by the first node and the number of the second type of signaling together are used to determine whether the first alternative time frequency resource block is selected as the target time frequency resource block.

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 a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

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

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

fig. 6 shows a schematic diagram of a first resource pool, a first time domain resource block, a target resource pool and a first alternative time frequency resource block according to an embodiment of the application;

fig. 7 shows a schematic diagram of a first signaling, a relation between M first type signaling and a second signaling and N second type signaling according to an embodiment of the present application;

fig. 8 shows a flow chart of determining whether a first alternative time-frequency resource block belongs to a target resource subset according to an embodiment of the application;

fig. 9 shows a flow chart of determining whether a first alternative time-frequency resource block belongs to a target resource subset according to an embodiment of the application;

fig. 10 shows a block diagram of a processing device for use in a first node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node of an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step.

In embodiment 1, a first node in this application first performs step 101 to perform first channel sensing; then, executing step 102, receiving M first-type signaling and N second-type signaling; finally, step 103 is executed, and a first signal is sent on the target time frequency resource block; the first channel sensing is used to determine a target resource pool, the target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first alternative time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the second resource pool is used for Sidelink (SL) transmission.

As an embodiment, the second Resource Pool comprises all or part of resources of a sidelink Resource Pool (SL Resource Pool).

As an embodiment, the second Resource Pool includes all or part of a Resource of a sidelink Transmission Resource Pool (SL Transmission Resource Pool).

As an embodiment, the second Resource Pool includes all or part of resources of a secondary link Reception Resource Pool (SL Reception Resource Pool).

As an embodiment, the second resource pool comprises a PSCCH (Physical Sidelink Control Channel).

As an embodiment, the second resource pool includes a psch (Physical Sidelink Shared Channel).

As an embodiment, the second resource pool includes a PSFCH (Physical Sidelink Feedback Channel).

As an embodiment, the second resource pool is used for transmitting SL RS (Sidelink Reference Signal).

As one embodiment, the SL RS includes a SL CSI-RS (Sidelink Channel State Information Reference Signal).

For one embodiment, the SL RS includes PSCCH DMRS (Demodulation Reference Signal).

For one embodiment, the SL RS includes PSSCH DMRS.

As an embodiment, the second Resource pool includes a plurality of REs (Resource Elements).

As an embodiment, any RE of the plurality of REs included in the second resource pool occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

For one embodiment, the second resource pool includes a plurality of time domain resource blocks in the time domain.

For one embodiment, the second resource pool includes a plurality of frequency domain resource blocks in the frequency domain.

For one embodiment, the second resource pool includes a plurality of time-frequency resource blocks.

As an embodiment, the second resource pool includes a plurality of time domain resource blocks in the time domain, and the second resource pool includes a plurality of frequency domain resource blocks in the frequency domain.

As an embodiment, any time domain resource block of the plurality of time domain resource blocks comprised by the second resource pool in the time domain comprises a positive integer number of multicarrier symbols (symbol (s)).

As an embodiment, any time domain resource block of the plurality of time domain resource blocks comprised by the second resource pool in the time domain comprises a positive integer number of slots (slot (s)).

As one embodiment, any one of the plurality of frequency domain resource blocks comprised in the frequency domain by the second resource pool comprises positive integer number of subcarriers (s)).

As an embodiment, any frequency domain Resource Block of the plurality of frequency domain Resource blocks comprised by the second Resource pool in the frequency domain comprises a positive integer number of Physical Resource blocks (prbs (s)).

As an embodiment, any one of the plurality of frequency domain resource blocks comprised by the second resource pool in the frequency domain comprises a positive integer number of subchannels (s)).

As an embodiment, any time-frequency resource block in the plurality of time-frequency resource blocks included in the second resource pool occupies a positive integer of time slots in a time domain, and occupies a positive integer of consecutive sub-channels in a frequency domain.

As an embodiment, any time-frequency resource block in the plurality of time-frequency resource blocks included in the second resource pool occupies a positive integer number of multicarrier symbols in a time domain and occupies a positive integer number of continuous subchannels in a frequency domain.

As an embodiment, any time-frequency resource block in the plurality of time-frequency resource blocks included in the second resource pool occupies a positive integer of time slots in a time domain, and occupies a positive integer of consecutive physical resource blocks in a frequency domain.

As an embodiment, any time-frequency resource block in the plurality of time-frequency resource blocks included in the second resource pool occupies a positive integer number of multicarrier symbols in a time domain, and occupies a positive integer number of consecutive physical resource blocks in a frequency domain.

In an embodiment, any one of the plurality of time-frequency resource blocks included in the second resource pool includes a positive integer number of res(s).

As an embodiment, the second resource pool is Configured for higher layer signaling (Configured).

As an embodiment, the plurality of time-frequency resource blocks comprised by the second resource pool are of a higher layer signaling configuration.

As an embodiment, the plurality of time domain resource blocks comprised by the second resource pool in the time domain are Pre-configured (Pre-configured).

As an embodiment, the plurality of time domain resource blocks comprised by the second resource pool in the time domain are of a higher layer signaling configuration.

As an embodiment, the plurality of frequency domain resource blocks comprised by the second resource pool in the frequency domain are of a higher layer signaling configuration.

As an embodiment, the second resource pool is configured by signaling SL-ResourcePool.

As an example, the specific definition of SL-ResourcePool refers to section 6.3.5 of TS 8.331.

For one embodiment, the target resource pool includes a plurality of REs.

For one embodiment, the target resource pool comprises a plurality of time domain resource blocks in the time domain.

For one embodiment, the target resource pool includes a plurality of frequency domain resource blocks in the frequency domain.

As an embodiment, the target resource pool includes a plurality of time domain resource blocks in a time domain, and the target resource pool includes a plurality of frequency domain resource blocks in a frequency domain.

For one embodiment, the target resource pool includes a plurality of time-frequency resource blocks.

For one embodiment, the second resource pool comprises the target resource pool.

As an embodiment, any time domain resource block of the plurality of time domain resource blocks comprised in the time domain by the target resource pool is one time domain resource block of the plurality of time domain resource blocks comprised in the time domain by the second resource pool.

As an embodiment, any one of the plurality of frequency domain resource blocks comprised by the target resource pool in the frequency domain is one of the plurality of frequency domain resource blocks comprised by the second resource pool in the frequency domain.

As an embodiment, any one of the plurality of time-frequency resource blocks included in the target resource pool is one of the plurality of time-frequency resource blocks included in the second resource pool.

As one embodiment, the target resource pool is used for resource selection.

As an embodiment, the target resource pool is used for psch (Physical Sidelink Shared Channel) resource selection in SL (Sidelink) resource allocation mode 2.

As an embodiment, the target resource pool is reported to Higher layers (highers) of the first node.

For one embodiment, the target resource pool comprises a PSCCH.

For one embodiment, the target resource pool includes a PSSCH.

For one embodiment, the target resource pool includes a PSFCH.

For one embodiment, the target resource pool is used for transmitting SL RSs.

As one embodiment, the first channel awareness is used to determine the target resource pool.

As an embodiment, the first channel sensing and the M first type signaling are used together to determine the target resource pool.

As an embodiment, the first channel sensing is used to determine the first target resource pool, the first target resource pool comprising a positive integer number of time-frequency resource blocks; the M first-class signaling indicates a second target resource pool, and the second target resource pool comprises a positive integer of time-frequency resource blocks; the target resource pool is a set of the positive integer number of time frequency resource blocks included in the first target resource pool and the positive integer number of time frequency resource blocks included in the second target resource pool.

As an embodiment, any time-frequency resource block of the positive integer number of time-frequency resource blocks included in the first target resource pool belongs to the target resource pool.

As an embodiment, any time-frequency resource block of the positive integer number of time-frequency resource blocks included in the second target resource pool belongs to the target resource pool.

As an embodiment, a first target time frequency resource block is one time frequency resource block of the multiple time frequency resource blocks included in the target resource pool, and the first target time frequency resource block does not belong to the second target resource pool.

As an embodiment, the second target time frequency resource block is one time frequency resource block of the multiple time frequency resource blocks included in the target resource pool, and the second target time frequency resource block does not belong to the first target resource pool.

As an embodiment, a first target time-frequency resource block is one time-frequency resource block of the positive integer number of time-frequency resource blocks included in the first target resource pool, the first target time-frequency resource block belongs to the target resource pool, and the first target time-frequency resource block does not belong to the second target resource pool.

As an embodiment, the second target time frequency resource block is one time frequency resource block of the positive integer number of time frequency resource blocks included in the second target resource pool, the second target time frequency resource block belongs to the target resource pool, and the second target time frequency resource block does not belong to the first target resource pool.

For one embodiment, the target subset of resources includes a plurality of REs.

For one embodiment, the target subset of resources includes a positive integer number of time domain resource blocks in the time domain.

As an embodiment, the target subset of resources comprises a positive integer number of time domain resource blocks in the frequency domain.

As an embodiment, the target resource subset includes a positive integer number of time domain resource blocks in the time domain, and the target resource subset includes a positive integer number of time domain resource blocks in the frequency domain.

For one embodiment, the target subset of resources includes a positive integer number of time-frequency resource blocks.

For one embodiment, the target resource pool includes the target resource subset.

As an embodiment, any time domain resource block of the positive integer number of time domain resource blocks comprised by the target resource subset in the time domain is one time domain resource block of the plurality of time domain resource blocks comprised by the target resource pool.

As an embodiment, any one of the positive integer number of frequency domain resource blocks comprised in the frequency domain by the target resource subset is one of the plurality of frequency domain resource blocks comprised by the target resource pool.

As an embodiment, any one of the positive integer number of time frequency resource blocks included in the target resource subset is one of the plurality of time frequency resource blocks included in the target resource pool.

As an embodiment, any time-frequency resource block of the positive integer number of time-frequency resource blocks included in the target resource subset belongs to the target resource pool.

As one embodiment, the target subset of resources is used for resource selection.

As an embodiment, the target resource subset is used for psch resource selection in SL resource allocation pattern 2.

As an embodiment, the subset of target resources is reported to higher layers of the first node.

As an embodiment, any time-frequency resource block in the target resource subset comprises a PSCCH.

As an embodiment, any time-frequency resource block in the target resource subset comprises a PSSCH.

As an embodiment, at least one time-frequency resource block in the target subset of resources comprises a PSFCH.

As an embodiment, at least one time-frequency resource block in the target subset of resources is used for transmitting SL RS.

For one embodiment, the target subset of resources includes the target time-frequency resource block.

As an embodiment, the target time-frequency resource block belongs to the target resource subset.

As an embodiment, the target time frequency resource block is one time frequency resource block of the positive integer number of time frequency resource blocks included in the target resource subset.

As an embodiment, the time domain resource occupied by the target time frequency resource block in the time domain includes one time domain resource block in the target resource subset.

As an embodiment, the frequency domain resource occupied by the target time-frequency resource block in the frequency domain includes one frequency domain resource block in the target resource subset.

As an embodiment, the target time-frequency resource block includes a plurality of REs.

As an embodiment, the target time-frequency resource block includes a positive integer number of multicarrier symbols in the time domain and a positive integer number of subchannels in the frequency domain.

As an embodiment, the target time-frequency resource block is used for transmitting the first signal.

As an embodiment, the target time-frequency resource block is used for transmitting the first target signaling and the first signal.

As an embodiment, the target time-frequency resource block comprises a PSCCH.

As an embodiment, the target time-frequency resource block comprises a psch.

As an embodiment, the target time-frequency resource block comprises a PSFCH.

As an embodiment, the first node autonomously determines the target time-frequency resource block from the target subset of resources.

As an embodiment, the first node autonomously selects the target time-frequency resource block from the target subset of resources.

As an embodiment, the target time-frequency resource block is one of the positive integer number of time-frequency resource blocks included in the target resource subset, which is autonomously selected by the first node.

As an embodiment, the target time-frequency resource block is autonomously selected by the first node from the target subset of resources.

As an embodiment, the first node is indicated the target time frequency resource block, which belongs to the target resource subset.

As an embodiment, the first node is indicated a position of the target time frequency resource block in the positive integer number of time frequency resource blocks comprised by the target resource subset.

As an embodiment, the first node is indicated an index of the positive integer number of time frequency resource blocks comprised by the target subset of time frequency resource blocks.

As an embodiment, the time domain resource block occupied by the target time-frequency resource block in the time domain is the earliest time domain resource block in the time domain among the positive integer number of time domain resource blocks included in the target resource subset.

As an embodiment, the target time-frequency resource block is a time-frequency resource block indicated by all of the M first types of signaling in the target resource subset.

As an embodiment, the target time frequency resource block is one time frequency resource block in the positive integer number of time frequency resource blocks included in the target resource subset, and the target time frequency resource block is one time frequency resource block indicated by any one first type signaling in the M first types of signaling.

As an embodiment, the M first class signaling indicates M first class sets of time-frequency resource blocks respectively, any one of the M first class sets of time-frequency resource blocks includes a positive integer number of time-frequency resource blocks in the second resource pool, and any one of the M first class sets of time-frequency resource blocks includes the target time-frequency resource block.

As an embodiment, the M first class signaling indicates M first class sets of time-frequency resource blocks respectively, any one of the M first class sets of time-frequency resource blocks includes at least one of the positive integer number of time-frequency resource blocks in the target subset of time-frequency resource blocks, and any one of the M first class sets of time-frequency resource blocks includes the target time-frequency resource block.

As an embodiment, the first signaling is any one of the M first-class signaling, and the first set of time-frequency resource blocks is one of the M first-class sets of time-frequency resource blocks indicated by the first signaling; the first time-frequency resource block set comprises a positive integer number of time-frequency resource blocks, any time-frequency resource block in the positive integer number of time-frequency resource blocks included in the first time-frequency resource block set is a time-frequency resource block in the second resource pool, and the target time-frequency resource block is a time-frequency resource block in the positive integer number of time-frequency resource blocks included in the first time-frequency resource block set.

As an embodiment, the target resource subset includes a target time frequency resource block and a second target time frequency resource block, the target time frequency resource block belongs to the first set of time frequency resource blocks, and the second target time frequency resource block does not belong to the first set of time frequency resource blocks.

As an embodiment, the target resource subset includes a target time-frequency resource block and a second target time-frequency resource block, the target time-frequency resource block belongs to the first set of time-frequency resource blocks, the second target time-frequency resource block also belongs to the first set of time-frequency resource blocks, the target time-frequency resource block is not indicated by any one of the N second type signaling, and the second candidate time-frequency resource block is indicated by one of the N second type signaling.

As an embodiment, the target resource subset includes a target time-frequency resource block and a second target time-frequency resource block, and a time domain resource occupied by the target time-frequency resource block is earlier than a time domain resource occupied by the second target time-frequency resource block.

As an embodiment, the target subset of resources comprises a target time-frequency resource block and a second target time-frequency resource block, the target time-frequency resource block being associated to a first time-frequency resource block in the second resource pool, the second target time-frequency resource block being associated to a second time-frequency resource block in the second resource pool, a measurement value for the first time-frequency resource block being lower than a measurement value for the second time-frequency resource block.

As one embodiment, the measurement value for the first time-frequency resource block includes RSRP (Reference Signal Received Power).

As an embodiment, the measurement values for the first time-frequency resource block include a Received Signal Strength Indicator (RSSI).

As an embodiment, the measurement values for the second time-frequency resource block comprise RSRP.

As an embodiment, the measurement value for the second time-frequency resource block comprises RSSI.

As an embodiment, the target time frequency resource block is the first alternative time frequency resource block.

As an embodiment, the target time frequency resource block is not the first alternative time frequency resource block.

As an embodiment, the target resource pool comprises the first alternative time-frequency resource block.

As an embodiment, the first alternative time-frequency resource block belongs to the target resource pool.

As an embodiment, the first alternative time frequency resource block is one time frequency resource block of the plurality of time frequency resource blocks comprised by the target resource pool.

As an embodiment, the first alternative time-frequency resource block comprises a plurality of REs.

As an embodiment, the first alternative time-frequency resource block includes a positive integer number of multicarrier symbols in the time domain and a positive integer number of subchannels in the frequency domain.

As an embodiment, the target subset of resources comprises the first alternative time-frequency resource block.

As an embodiment, the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the target subset of resources does not comprise the first alternative time-frequency resource block.

As an embodiment, the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, the first alternative time frequency resource block is different from any one of the positive integer number of time frequency resource blocks included in the target resource subset.

As an embodiment, any one of the M first type signaling includes one or more fields in a PHY Layer (Physical Layer) signaling.

As an embodiment, any one of the M first type signaling includes one or more fields in a SCI (Sidelink Control Information).

As an embodiment, any one of the M first type signaling includes one SCI.

As an embodiment, any one of the M first type signaling includes at least one of a plurality of domains of a first-level SCI format and at least one of a plurality of domains of a second-level SCI format.

For one embodiment, the definition of the first level SCI format refers to section 8.3 of 3GPP TS 38.212.

For one embodiment, the definition of the second level SCI format refers to section 8.4 of 3GPP TS 38.212.

As an embodiment, any one of the M first types of Signaling includes all or part of a Higher Layer Signaling (high Layer Signaling).

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

As an embodiment, any one of the M first type signaling includes one or more fields in an RRC IE (Radio Resource Control Information Element).

As an embodiment, any one of the M first type signaling includes all or part of one PC5-RRC signaling.

As an embodiment, any one of the M first-type signaling includes all or part of a MAC (Multimedia Access Control) layer signaling.

As an embodiment, any one of the M first-type signaling includes one or more fields in a MAC CE (Multimedia Access Control Element).

As an embodiment, any one of the M first type signaling includes a Sidelink Information Element (SL IE).

As an embodiment, the channel occupied by any one of the M first type signaling includes PSCCH.

As an embodiment, the channel occupied by any one of the M first type signaling includes a PSSCH.

As an embodiment, any one of the M first-type signaling indicates a time domain resource occupied by the first alternative time-frequency resource block.

As an embodiment, any one of the M first class signaling indicates an index of a time domain resource block occupied by the first alternative time frequency resource block in the time domain in the multiple time domain resource blocks included in the second resource pool.

As an embodiment, any one of the M first class signaling indicates a frequency domain resource occupied by the first alternative time frequency resource block.

As an embodiment, any one of the M first-type signaling indicates an index of a frequency-domain resource block occupied by the first alternative time-frequency resource block in a frequency domain in the plurality of frequency-domain resource blocks included in the second resource pool.

As an embodiment, any one of the M first-class signaling indicates a time-frequency resource occupied by the first alternative time-frequency resource block.

As an embodiment, any one of the M first class of signaling indicates an index of the first alternative time frequency resource block in the plurality of time frequency resource blocks comprised by the second resource pool.

As an embodiment, the first alternative time-frequency resource block is indicated by any one of the M first type signaling.

As an embodiment, any one of the M first-type signaling indicates a positive integer number of time-frequency resource blocks in the second resource pool, and the first candidate time-frequency resource block is one of the positive integer number of time-frequency resource blocks in the second resource pool indicated by any one of the M first-type signaling.

As an embodiment, the M first class signaling indicates M first class sets of time frequency resource blocks respectively, any one of the M first class sets of time frequency resource blocks includes a positive integer number of time frequency resource blocks in the second resource pool, and any one of the M first class sets of time frequency resource blocks includes the first candidate time frequency resource block.

As an embodiment, the first signaling is any one of the M first-class signaling, and the first set of time-frequency resource blocks is one of the M first-class sets of time-frequency resource blocks indicated by the first signaling.

As an embodiment, the first set of time-frequency resource blocks includes a positive integer number of time-frequency resource blocks, any one of the positive integer number of time-frequency resource blocks included in the first set of time-frequency resource blocks is one time-frequency resource block in the second resource pool, and the first candidate time-frequency resource block is one of the positive integer number of time-frequency resource blocks included in the first set of time-frequency resource blocks.

As an embodiment, the first set of time-frequency resource blocks is obtained by channel sensing by a sender of the first signaling.

As an embodiment, the first set of time-frequency resource blocks is a time-frequency resource recommended by a sender of the first signaling to the first node for transmission.

As an embodiment, the first set of time-frequency resource blocks is a time-frequency resource indicated by a sender of the first signaling for sending the first signal.

As an embodiment, any one of the N second types of signaling includes one or more fields in one PHY layer signaling.

As an embodiment, any one of the N second-type signaling includes one or more fields in one SCI.

As an embodiment, any one of the N second-type signaling includes one SCI.

As an embodiment, any one of the N second-type signaling includes at least one of a plurality of fields of a first-level SCI format and at least one of a plurality of fields of a second-level SCI format.

As an embodiment, any one of the N second type signaling includes all or part of a higher layer signaling.

As an embodiment, any one of the N second-type signaling includes all or part of one RRC layer signaling.

As an embodiment, any one of the N second-type signaling includes one or more fields in one RRC IE.

As an embodiment, any one of the N second type signaling includes all or part of one PC5-RRC signaling.

As an embodiment, any one of the N second type signaling includes all or part of one MAC layer signaling.

As an embodiment, any second first-type signaling in the N second-type signaling includes one or more fields in one MAC CE.

As an embodiment, any one of the M first type signaling includes one SL IE.

As an embodiment, the channel occupied by any one of the N second type signaling includes PSCCH.

As an embodiment, the channel occupied by any one of the N second-type signaling includes a psch.

As an embodiment, any one of the N second-type signaling indicates a time domain resource occupied by the first alternative time-frequency resource block.

As an embodiment, any one of the N second-type signaling indicates an index of a time-domain resource block occupied by the first candidate time-frequency resource block in a time domain in the multiple time-domain resource blocks included in the second resource pool.

As an embodiment, any one of the N second type signaling indicates a frequency domain resource occupied by the first alternative time frequency resource block.

As an embodiment, any one of the N second-type signaling indicates an index of a frequency-domain resource block occupied by the first candidate time-frequency resource block in a frequency domain in the plurality of frequency-domain resource blocks included in the second resource pool.

As an embodiment, any one of the N second type signaling indicates a time frequency resource occupied by the first alternative time frequency resource block.

As an embodiment, any one of the N second types of signaling indicates an index of the first alternative time frequency resource block in the plurality of time frequency resource blocks included in the second resource pool.

As an embodiment, the first alternative time-frequency resource block is indicated by any one of the N second types of signaling.

As an embodiment, any one of the N second types of signaling indicates a positive integer number of time-frequency resource blocks in the second resource pool, and the first candidate time-frequency resource block is a time-frequency resource block of the positive integer number of time-frequency resource blocks in the second resource pool indicated by any one of the N second types of signaling.

As an embodiment, the N second-type signaling indicates N second-type sets of time frequency resource blocks, respectively, any one of the N second-type sets of time frequency resource blocks includes a positive integer number of time frequency resource blocks in the second resource pool, and any one of the N second-type sets of time frequency resource blocks includes the first alternative time frequency resource block.

As an embodiment, the second signaling is any one of the N second types of signaling, and the second set of time-frequency resource blocks is one of the N second types of time-frequency resource block sets indicated by the second signaling.

As an embodiment, the second set of time frequency resource blocks includes a positive integer number of time frequency resource blocks, any one of the positive integer number of time frequency resource blocks included in the second set of time frequency resource blocks is one time frequency resource block in the second resource pool, and the first candidate time frequency resource block is one of the positive integer number of time frequency resource blocks included in the second set of time frequency resource blocks.

As an embodiment, the second set of time-frequency resource blocks is obtained by a sender of the second signaling through channel sensing.

As an embodiment, the second set of time-frequency resource blocks is a time-frequency resource that the sender of the second signaling indicates to the first node to avoid for transmission.

As an embodiment, the second set of time-frequency resource blocks is time-frequency resources indicated by a sender of the second signaling to be avoided for sending the first signal.

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

As an embodiment, the multicarrier symbol in this application is a DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbol.

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

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

As an embodiment, the multicarrier symbol in this application is an IFDMA (Interleaved Frequency Division Multiple Access) symbol.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, an NG-RAN (next generation radio access Network) 202, a 5GC (5G Core Network )/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server )/UDM (Unified Data Management) 220, and an internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. In an NTN network, examples of the gNB203 include a satellite, an aircraft, or a ground base station relayed through a satellite. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

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

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

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

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

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

As an embodiment, a receiver of any one of the M first type signaling in the present application includes the UE 201.

As an embodiment, a receiver of any one of the N second-type signaling in the present application includes the UE 201.

As an embodiment, a sender of any one of the M first type signaling in this application includes the UE 241.

As an embodiment, a sender of any one of the N second-type signaling in the present application includes the UE 241.

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

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

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

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

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 node device (RSU in UE or V2X, car mounted device or car mounted communication module) and the second node device (gNB, RSU in UE or V2X, car mounted device or car mounted communication module) 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 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 node device. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handoff support for a first node device to a second node device. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of lost packets by ARQ, and duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. A 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 node device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first node device and the second node device is 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 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.

As an embodiment, any one of the M first type signaling in the present application is generated in the PHY 301.

As an embodiment, any one of the M first-type signaling in the present application is generated in the RRC sublayer 306.

As an embodiment, any one of the M first type signaling in the present application is transmitted to the PHY301 via the MAC sublayer 302.

As an embodiment, any one of the N second-type signaling in the present application is generated in the PHY 301.

As an embodiment, any one of the N second-type signaling in the present application is generated in the RRC sublayer 306.

As an embodiment, any one of the N second type signaling in the present application is transmitted to the PHY301 via the MAC sublayer 302.

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

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

As an embodiment, the first signal in this application is transmitted to the PHY301 via the MAC sublayer 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 410 and a second communication device 450 communicating with each other in an access network.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

As a sub-embodiment of the above-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocols to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 apparatus at least: performing a first channel sensing; receiving M first-type signaling and N second-type signaling, wherein M and N are positive integers; sending a first signal on a target time frequency resource block; the first channel sensing is used to determine a target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first candidate time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: performing a first channel sensing; receiving M first-type signaling and N second-type signaling, wherein M and N are positive integers; sending a first signal on a target time frequency resource block; the first channel sensing is used to determine a target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first alternative time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: sending a first type of signaling; receiving a first target signaling and a first signal on a target time frequency resource block; the one first type of signaling is used to indicate a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one first type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first type of signaling; receiving a first target signaling and a first signal on a target time frequency resource block; the one first type of signaling is used to indicate a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one first type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: sending a second type of signaling; receiving a first target signaling and a first signal on a target time frequency resource block; the one second type of signaling is used for indicating a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one time frequency resource block in a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one second type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a second type of signaling; receiving a first target signaling and a first signal on a target time frequency resource block; the one second type of signaling is used for indicating a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one second type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time-frequency resource block.

As one example, at least one of { the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467} is used to perform the first channel sensing in this application.

As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the M first type signaling and the N second type signaling.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 may be used for sending the first target signaling on the target time-frequency resource block in this application.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 may be used for transmitting the first signal on the target time-frequency resource block in this application.

As an example, at least one of { the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476} is used in this application to send a first type of signaling.

As an example, at least one of { the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476} is used in this application to send a second type of signaling.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for receiving first target signaling on a target time-frequency resource block in this application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476} is used in this application to receive a first signal on a target time-frequency resource block.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, communication between the first node U1, the second node U2, and the third node U3 is over an air interface, and the steps in block F0 of fig. 5 are optional.

For theFirst node U1Performing a first channel sensing in step S11; receiving M first type signaling and N second type signaling in step S12; in step S13, a first target signaling is sent on the target time-frequency resource block; in step S14, a first signal is transmitted on the target time-frequency resource block.

For theSecond node U2In step S21, a first type of signaling is sent; receiving a first target signaling on a target time-frequency resource block in step S22; a first signal is received on a target time-frequency resource block in step S23.

For theThird node U3In step S31, a second type of signaling is sent; receiving a first target signaling on a target time-frequency resource block in step S32; a first signal is received on a target time-frequency resource block in step S33.

In embodiment 5, the first channel sensing is used to determine a target resource pool, the target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first alternative time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the senders of any two first-type signaling in the M first-type signaling are non-co-located; the senders of any two of the N second-type signaling are non-co-located; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset; the first channel sensing is performed in a first resource pool, the first resource pool comprising a plurality of time-frequency resource blocks; any one of the plurality of time-frequency resource blocks included in the target resource pool is associated with one time-frequency resource block in the first resource pool; the first alternative time frequency resource block is associated to a first time frequency resource block, the first time frequency resource block being one of the plurality of time frequency resource blocks comprised by the first resource pool; the measurement value for the first time-frequency resource block is not higher than a first threshold value; the first target signaling is used to indicate the target time-frequency resource block; the first target signaling includes a first priority, which is used to determine the first threshold.

As an embodiment, the first signaling is any one of the M first type signaling; the second signaling is any second-class signaling in the N second-class signaling; the first signaling is different from the second signaling.

As an embodiment, the magnitude relation between the M and the first value, together with the magnitude relation between the N and the second value, is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset; the first value is predefined or the first value is configurable; the second value is predefined or the second value is configurable.

As an embodiment, the relation of M to N is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

For one embodiment, the first node U1 and the second node U2 communicate with each other via a PC5 interface.

For one embodiment, the first node U1 and the third node U3 communicate with each other via a PC5 interface.

As one example, the step in block F0 in fig. 5 exists.

As one example, the step in block F0 in fig. 5 is not present.

As an embodiment, the one second type signaling sent by the third node U3 does not indicate the target time-frequency resource block, the step in block F0 in fig. 5 exists.

As an embodiment, the one second type signaling sent by the third node U3 indicates the target time-frequency resource block, and the step in block F0 in fig. 5 does not exist.

As an embodiment, the one second type of signaling sent by the third node U3 indicates the target time frequency resource block, which is associated to one time frequency resource block in the first resource pool, the third node U3 has a measurement value for the one time frequency resource block in the first resource pool associated to the target time frequency resource block higher than a first target threshold, the step in block F0 in fig. 5 does not exist.

As an embodiment, the one second type signaling sent by the third node U3 indicates the target time frequency resource block, the target time frequency resource block is associated to one time frequency resource block in the first resource pool, the third node U3 does not monitor one time frequency resource block in the first resource pool associated with the target time frequency resource block, and the step in block F0 in fig. 5 does not exist.

As an embodiment, the first signaling is any one of the M first type signaling.

As an embodiment, the second signaling is any one of the N second-type signaling.

As an embodiment, a sender of one of the M first type signaling and a sender of one of the N second type signaling are non-co-located.

As an embodiment, a sender of one first type signaling of the M first type signaling and a sender of one second type signaling of the N second type signaling are two different communication nodes, respectively.

As an embodiment, the sender of one of the M first types of signaling is the second node U2, and the sender of one of the N second types of signaling is the third node U3.

As an embodiment, a sender of one first type signaling of the M first type signaling and a sender of one second type signaling of the N second type signaling are two different user equipments respectively.

As an embodiment, a Backhaul Link (Backhaul Link) between a sender of one of the M first type signaling and a sender of one of the N second type signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, the sender of one of the M first type of signaling and the sender of one of the N second type of signaling do not share the same set of BaseBand (BaseBand) devices.

As an embodiment, the sender of at least one of the M first type of signaling is co-located with the sender of at least one of the N second type of signaling.

As an embodiment, a sender of at least one first type signaling of the M first type signaling and a sender of at least one second type signaling of the N second type signaling are two different communication nodes, respectively.

As an embodiment, the sender of at least one of the M first type of signaling is the second node U2, and the sender of at least one of the N second type of signaling is the third node U3.

As an embodiment, the sender of at least one first type signaling in the M first type signaling and the sender of at least one second type signaling in the N second type signaling are two different user equipments, respectively.

As an embodiment, a backhaul link between a sender of at least one of the M first type signaling and a sender of at least one of the N second type signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, the sender of at least one first type signaling of the M first type signaling and the sender of at least one second type signaling of the N second type signaling do not share the same baseband apparatus.

As an embodiment, the first signaling is one of the M first types of signaling, and the second signaling is one of the N second types of signaling; a sender of the first signaling is non-co-located with a sender of the second signaling.

As an embodiment, the sender of the first signaling and the sender of the second signaling are two different communication nodes, respectively.

As an embodiment, the sender of the first signaling is the second node U2 and the sender of the second signaling is the third node U3.

As an embodiment, the sender of the first signaling and the sender of the second signaling are two different user equipments, respectively.

As an embodiment, the backhaul link between the sender of the first signaling and the sender of the second signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, the sender of the first signaling and the sender of the second signaling do not share the same set of baseband devices.

As an embodiment, the first signaling carries a first identifier, the second signaling carries a second identifier, the first identifier is used to identify a sender of the first signaling, and the second identifier is used to identify a sender of the second signaling.

As an embodiment, the first signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the first signaling.

As an embodiment, the second signaling includes a plurality of domains, and the second identifier is one of the plurality of domains included in the second signaling.

As one embodiment, the first identification is used to scramble the first signaling.

As one embodiment, the second identification is used to scramble the second signaling.

As an embodiment, the first signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the first signaling; the second identity is used to scramble the second signaling.

As an embodiment, the first identity is used to scramble the first signaling; the second signaling includes a plurality of domains, and the second identifier is one of the plurality of domains included in the second signaling.

As an embodiment, the first identifier and the second identifier are two first-class identifiers of X1 first-class identifiers, respectively, and X1 is a positive integer greater than 1.

As an embodiment, the M first class signaling respectively carries M first class identifiers of X1 first class identifiers, where M is a positive integer not greater than the X1.

As an embodiment, any one of the M first class identifiers is used to identify a sender of one of the M first class signaling.

As an embodiment, the N second type signaling respectively carries N first type identifiers of X1 first type identifiers, where N is a positive integer no greater than the X1.

As an embodiment, any one of the N first class identifiers is used to identify a sender of one of the N second class signaling.

As an embodiment, the number of bits included in any one of the X1 first-type identifiers is configured.

As an embodiment, any one of the X1 first class identifiers includes 16 bits.

As an embodiment, any one of the X1 first class identifiers includes 8 bits.

As an example, the X1 is equal to a power of 2 to the power of 16.

As an example, the X1 is equal to a power of 2 to the power of 8.

As an embodiment, the first flag includes 16 bits, and the second flag includes 16 bits.

As an embodiment, the first flag includes 8 bits, and the second flag includes 8 bits.

As an embodiment, any one of the X1 first-class identifiers includes a Source identifier (Source ID).

As an embodiment, any one of the X1 first class identifications includes a Layer 1source identification (Layer-1source ID).

As an embodiment, any one of the X1 first class identifiers includes a SL source identifier (Sidelink source ID).

As an embodiment, any one of the X1 first-class identifiers includes an RNTI (Radio Network Temporary Identifier).

As an embodiment, any one of the X1 first-class identifiers includes a C-RNTI (Cell-Radio Network Temporary Identifier).

As an embodiment, any one of the X1 first-class identifiers includes TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

As an embodiment, any one of the X1 first-class identifiers includes an IMSI (International Mobile Subscriber Identifier).

As an embodiment, the first signaling is one of the M first types of signaling, and the second signaling is one of the N second types of signaling; a sender of the first signaling is co-located with a sender of the second signaling.

As an embodiment, the sender of the first signaling and the sender of the second signaling are the same communication node.

As an embodiment, both the sender of the first signaling and the sender of the second signaling are the second node U2.

As an embodiment, the sender of the first signaling and the sender of the second signaling are the same user equipment.

As an embodiment, a backhaul link between the sender of the first signaling and the sender of the second signaling is ideal (i.e. the delay can be neglected).

As an embodiment, the sender of the first signaling and the sender of the second signaling share the same set of baseband devices.

As an embodiment, the first signaling carries a first identifier, the second signaling also carries a first identifier, the first identifier is used to identify a sender of the first signaling, and the first identifier is also used to identify a sender of the second signaling.

As an embodiment, the first signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the first signaling; the second signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the second signaling.

As an embodiment, the first identity is used to scramble the first signaling; the first identity is used to scramble the second signaling.

For one embodiment, the first token is one token of X1 tokens of a first class, and X1 is a positive integer greater than 1.

As an embodiment, the senders of any two of the M first type signaling are non-co-located.

As an embodiment, the senders of any two first-type signaling in the M first-type signaling are two different communication nodes respectively.

As an embodiment, the senders of any two first type signaling in the M first type signaling are the second node U2 and another communication node different from the second node U2, respectively.

As an embodiment, the senders of any two first-type signaling in the M first-type signaling are two different user equipments respectively.

As an embodiment, the backhaul link between the senders of any two of the M first type signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, senders of any two first-type signaling in the M first-type signaling do not share the same baseband device.

As an embodiment, the senders of any two of the N second type signaling are non-co-located.

As an embodiment, the senders of any two second-type signaling in the N second-type signaling are two different communication nodes respectively.

As an embodiment, the senders of any two second type signaling in the N second type signaling are the third node U3 and another communication node different from the third node U3, respectively.

As an embodiment, the senders of any two second-type signaling in the N second-type signaling are two different user equipments respectively.

As an embodiment, the backhaul link between the senders of any two of the N second type signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, any two senders of the N second-type signaling do not share the same baseband device.

As an embodiment, the third signaling is one of the M first-type signaling different from the first signaling, and a sender of the first signaling is non-co-located with a sender of the third signaling.

As an embodiment, the first signaling and the third signaling are any two different first-type signaling from the M first-type signaling, and a sender of the first signaling is non-co-located with a sender of the third signaling.

As an embodiment, the sender of the first signaling and the sender of the third signaling are two different communication nodes, respectively.

As an embodiment, the sender of the first signaling is the second node U2, and the sender of the third signaling is a different communication node than the second node U2.

As an embodiment, the sender of the first signaling and the sender of the third signaling are two different user equipments, respectively.

As an embodiment, the backhaul link between the sender of the first signaling and the sender of the third signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, the sender of the first signaling and the sender of the third signaling do not share the same set of baseband devices.

As an embodiment, the first signaling carries a first identifier, the third signaling carries a third identifier, the first identifier is used for identifying a sender of the first signaling, and the third identifier is used for identifying a sender of the third signaling.

As an embodiment, the first signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the first signaling; the third signaling comprises a plurality of domains, and the third identity is one of the plurality of domains comprised by the third signaling.

As an embodiment, the first identity is used to scramble the first signaling; the third identification is used to scramble the third signaling.

As an embodiment, the first signaling includes a plurality of domains, and the first identifier is one of the plurality of domains included in the first signaling; the third identification is used to scramble the third signaling.

As an embodiment, the first identity is used to scramble the first signaling; the third signaling comprises a plurality of domains, and the third identity is one of the plurality of domains comprised by the third signaling.

As an embodiment, the first identifier and the third identifier are two first-class identifiers of X1 first-class identifiers, respectively, and X1 is a positive integer greater than 1.

As an embodiment, the first flag comprises 16 bits and the third flag comprises 16 bits.

As an embodiment, the first flag includes 8 bits, and the third flag includes 8 bits.

As an embodiment, the fourth signaling is one of the N second types of signaling different from the second signaling, and a sender of the second signaling is non-co-located with a sender of the fourth signaling.

As an embodiment, the second signaling and the fourth signaling are any two different second-type signaling of the N second-type signaling, and a sender of the second signaling is non-co-located with a sender of the fourth signaling.

As an embodiment, the sender of the second signaling and the sender of the fourth signaling are two different communication nodes, respectively.

As an embodiment, the sender of the second signaling is the third node U3, and the sender of the fourth signaling is a different communication node than the third node U3.

As an embodiment, the sender of the second signaling and the sender of the fourth signaling are two different user equipments respectively.

As an embodiment, the backhaul link between the sender of the second signaling and the sender of the fourth signaling is non-ideal (i.e. the delay may not be negligible).

As an embodiment, the sender of the second signaling and the sender of the fourth signaling do not share the same set of baseband devices.

As an embodiment, the second signaling carries a second identifier, the fourth signaling carries a fourth identifier, the second identifier is used for identifying a sender of the second signaling, and the fourth identifier is used for identifying a sender of the fourth signaling.

As an embodiment, the second signaling includes a plurality of domains, and the second identifier is one of the plurality of domains included in the second signaling; the fourth signaling includes a plurality of domains, and the fourth identification is one of the plurality of domains included in the fourth signaling.

As an embodiment, the second identification is used to scramble the second signaling; the fourth identification is used to scramble the fourth signaling.

As an embodiment, the second signaling includes a plurality of domains, and the second identifier is one of the plurality of domains included in the second signaling; the fourth identification is used to scramble the fourth signaling.

As an embodiment, the second identification is used to scramble the second signaling; the fourth signaling includes a plurality of domains, and the fourth identification is one of the plurality of domains included in the fourth signaling.

As an embodiment, the second identifier and the fourth identifier are two first type identifiers of X1 first type identifiers, respectively, and X1 is a positive integer greater than 1.

As an embodiment, the second identifier includes 16 bits, and the fourth identifier includes 16 bits.

As an embodiment, the second identifier includes 8 bits, and the fourth identifier includes 8 bits.

Example 6

Embodiment 6 illustrates a schematic diagram of a relationship between a first resource pool, a first time domain resource block, a target resource pool, and a first alternative time frequency resource block according to an embodiment of the present application, as shown in fig. 6. In fig. 6, the large dotted box represents the second resource pool in the present application; the dashed box represents the first resource pool in the present application; rectangles in the dotted line boxes represent time-frequency resource blocks in the first resource pool; the diagonal filled rectangles represent the first time-frequency resource blocks in the present application; the bold solid line box represents the target resource pool in this application; the rectangles filled with the diagonal squares represent the first alternative time frequency resource block in the present application.

In embodiment 6, a second resource pool is used to determine a first resource pool in which the first channel sensing is performed; the first resource pool comprises a plurality of time-frequency resource blocks; any one of the plurality of time-frequency resource blocks included in the target resource pool is associated with one time-frequency resource block in the first resource pool; the first time frequency resource block is one of the plurality of time frequency resource blocks included in the first resource pool, and the first alternative time frequency resource block is associated to the first time frequency resource block; the measurement value for the first time-frequency resource block is not higher than a first threshold value; the first signal is used to determine a first priority, which is used to determine the first threshold; the first target signaling carries the first priority.

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

For one embodiment, the first target signaling includes one or more fields in one SCI.

As an embodiment, the first target signaling is an SCI.

For one embodiment, the first target signaling includes at least one of a plurality of fields of a first level SCI format and at least one of a plurality of fields of a second level SCI format.

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

As an embodiment, the first target signaling includes all or part of one RRC layer signaling.

For one embodiment, the first target signaling comprises all or part of a PC5-RRC signaling.

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

As an embodiment, the first target signaling is transmitted on the PSCCH.

As an embodiment, the first target signaling is transmitted on PSCCH and PSCCH.

As an embodiment, the first target signaling indicates the target time-frequency resource block.

As an embodiment, the first target signaling indicates a time domain resource occupied by the target time frequency resource block.

As an embodiment, the first target signaling indicates a frequency domain resource occupied by the target time-frequency resource block.

As an embodiment, the first target signaling indicates a time-frequency resource occupied by the target time-frequency resource block.

As an embodiment, the first target signaling indicates the plurality of REs comprised by the target time-frequency resource block.

As an embodiment, the first target signaling indicates that the target time-frequency resource block occupies a positive integer number of time-domain resource blocks in the first resource pool.

As an embodiment, the first target signaling indicates that the target time-frequency resource block occupies a positive integer number of frequency-domain resource blocks in the first resource pool.

As an embodiment, the first target signaling indicates that the target time frequency resource block occupies a positive integer number of time frequency resource blocks in the first resource pool.

For one embodiment, the second resource pool is used to determine the first resource pool.

For one embodiment, the first resource pool includes a plurality of time-frequency resource blocks within a first sensing window in the second resource pool.

For one embodiment, the first sensing window includes a plurality of time domain resource blocks in the second resource pool.

As one embodiment, the unit of the first sensing window is ms (milliseconds).

As an embodiment, the first sensing window is 10 ms.

As an embodiment, the first sensing window is 1000 ms.

For one embodiment, the first resource pool includes a plurality of REs.

For one embodiment, the first resource pool includes a plurality of time domain resource blocks in a time domain.

For one embodiment, the first resource pool includes a plurality of frequency domain resource blocks in the frequency domain.

As an embodiment, the first resource pool includes a plurality of time domain resource blocks in the time domain, and the first resource pool includes a plurality of frequency domain resource blocks in the frequency domain.

For one embodiment, the first resource pool includes a plurality of time-frequency resource blocks.

For one embodiment, the second resource pool comprises the first resource pool.

As an embodiment, any time domain resource block of the plurality of time domain resource blocks comprised by the first resource pool in the time domain is one time domain resource block of the plurality of time domain resource blocks comprised by the second resource pool in the time domain.

As an embodiment, any one of the plurality of frequency domain resource blocks comprised in the frequency domain by the first resource pool is one of the plurality of frequency domain resource blocks comprised in the frequency domain by the second resource pool.

As an embodiment, any one of the plurality of time-frequency resource blocks included in the first resource pool is one of the plurality of time-frequency resource blocks included in the second resource pool.

As one embodiment, the first resource pool is used for the first channel sensing.

As an embodiment, the first resource pool is used for resource awareness in SL resource allocation mode 2.

As an embodiment, the first resource pool is indicated by higher layer signaling.

As an embodiment, any one of the plurality of time frequency resource blocks comprised by the target resource pool is associated to one of the plurality of time frequency resource blocks comprised by the first resource pool.

As an embodiment, a given alternative time frequency resource block is any one of the plurality of time frequency resource blocks comprised by the target resource pool, a given time frequency resource block is one of the plurality of time frequency resource blocks comprised by the first resource pool, the given alternative time frequency resource block is associated to the given time frequency resource block.

As an embodiment, the given alternative time frequency resource block in the target resource pool is associated to the given time frequency resource block in the first resource pool.

As an embodiment, the given time frequency resource block in the first resource pool is associated with the given alternative time frequency resource block in the target resource pool.

As an embodiment, the given time frequency resource block is orthogonal to the given alternative time frequency resource block.

As an embodiment, the given time-frequency resource block and the given alternative time-frequency resource block are orthogonal in time domain, and the given time-frequency resource block and the given alternative time-frequency resource block occupy the same frequency domain resource.

As an embodiment, the given time-frequency resource block includes L consecutive frequency-domain resource blocks, the given alternative time-frequency resource block includes L consecutive frequency-domain resource blocks, the L consecutive frequency-domain resource blocks in the given time-frequency resource block are the same as the L consecutive frequency-domain resource blocks in the given alternative time-frequency resource block, and L is a positive integer.

As an embodiment, the given time-frequency resource block and the given alternative time-frequency resource block are orthogonal in the time domain, and the positive integer number of subcarriers occupied by the given time-frequency resource block in the frequency domain is the same as the positive integer number of subcarriers occupied by the given alternative time-frequency resource block in the frequency domain.

As an embodiment, the given time-frequency resource block and the given alternative time-frequency resource block are orthogonal in time domain, and the given time-frequency resource block and the given alternative time-frequency resource block are also orthogonal in frequency domain.

As an embodiment, the given Time frequency resource block and the given alternative Time frequency resource block are two Time frequency resource blocks of TDM (Time Division Multiplexing) in a sidelink resource pool.

As an embodiment, the given time frequency resource block and the given alternative time frequency resource block are two time frequency resource blocks of a TDM in the second resource pool.

As an embodiment, the given time-frequency resource block is earlier in the time domain than the given alternative time-frequency resource block.

As an embodiment, the given time-frequency resource block and the given alternative time-frequency resource block are two time-frequency resource blocks of a TDM in the second resource pool, and the given time-frequency resource block is earlier in time domain than the given alternative time-frequency resource block.

As an embodiment, the given alternative time-frequency resource block and the given time-frequency resource block occupy the same frequency-domain resource at a first time difference in a time-domain interval.

As an embodiment, the given alternative time-frequency resource block and the given time-frequency resource block have a first time difference in time domain, and the L consecutive frequency-domain resource blocks included in the frequency domain by the given alternative time-frequency resource block are the same as the L consecutive frequency-domain resource blocks included in the frequency domain by the given time-frequency resource block.

For one embodiment, the first time difference comprises a positive integer number of time domain resource units.

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

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

As an embodiment, the first resource pool includes a given time-frequency resource group, where the given time-frequency resource group includes multiple time-frequency resource blocks, where any two adjacent time-frequency resource blocks in the multiple time-frequency resource blocks included in the given time-frequency resource group have equal time-frequency interval, and the given time-frequency resource block is one time-frequency resource block in the given time-frequency resource group.

As an embodiment, the frequency-domain resources occupied by the plurality of time-frequency resource blocks included in the given time-frequency resource group are all the same.

As an embodiment, any time-frequency resource block in the given time-frequency resource group includes L consecutive frequency-domain resource blocks in the frequency domain, which are the same as L consecutive frequency-domain resource blocks included in the frequency domain by the given time-frequency resource block.

As an embodiment, the given time-frequency resource block is one of the multiple time-frequency resource blocks included in the given time-frequency resource group, the given alternative time-frequency resource block is one of the multiple time-frequency resource blocks included in the given time-frequency resource group, and a time-frequency interval between the given alternative time-frequency resource block and a latest time-frequency resource block in the given time-frequency resource group is equal to a time-frequency interval between any two adjacent time-frequency resource blocks in the multiple time-frequency resource blocks included in the given time-frequency resource group.

As an embodiment, the given alternative time-frequency resource block is later in time domain than any time-frequency resource block in the given group of time-frequency resources.

As an embodiment, the L consecutive frequency-domain resource blocks comprised in the frequency domain by the given alternative time-frequency resource block are the same as the L consecutive frequency-domain resource blocks comprised by any time-frequency resource block in the given time-frequency resource group.

As an embodiment, the given time-frequency resource block includes a first time-frequency resource block in this application, and the given alternative time-frequency resource block includes a first alternative time-frequency resource block in this application.

As an embodiment, the first channel sensing is performed in the first resource pool.

As one embodiment, performing the first channel sensing comprises: receiving a given signaling on a given time frequency resource block in the first resource pool, the given signaling indicating a given reference signal, measuring the given reference signal on the given time frequency resource block, resulting in a measurement value for the given time frequency resource block, the measurement value for the given time frequency resource block being used for determining whether the given alternative time frequency resource block belongs to the target resource pool.

As one embodiment, performing the first channel sensing comprises: receiving a plurality of given signaling of a first type respectively on the plurality of time-frequency resource blocks included in the given time-frequency resource group in the first resource pool, wherein the given signaling is one given signaling of the plurality of given signaling of the first type; the plurality of first-class designations respectively indicate a plurality of first-class reference signals, and the given reference signal is one of the plurality of first-class reference signals; and respectively measuring the plurality of first-class reference signals on the plurality of time-frequency resource blocks included in the given time-frequency resource group, then performing linear averaging to obtain a measurement value aiming at the given time-frequency resource block, and using the measurement value aiming at the given time-frequency resource block to determine whether the given alternative time-frequency resource block belongs to the target resource pool.

As an embodiment, the measurement value for the given time-frequency resource block is above a first threshold, the given alternative time-frequency resource block does not belong to the target resource pool.

As an embodiment, the measurement value for the given alternative time-frequency resource block is not higher than a first threshold, the given alternative time-frequency resource block belonging to the target resource pool.

As a sub-embodiment of the above, the measurement value for the given time-frequency resource block not being above a first threshold comprises the measurement value for the given time-frequency resource block being below the first threshold.

As a sub-implementation of the above embodiment, the measurement value for the given time-frequency resource block not being higher than a first threshold value comprises the measurement value for the given time-frequency resource block being equal to the first threshold value.

As an embodiment, when the measurement value for the given alternative time-frequency resource block is above a first threshold, the given alternative time-frequency resource block does not belong to the target resource pool; when the measurement value for the given alternative time-frequency resource block is not higher than a first threshold value, the given alternative time-frequency resource block belongs to the target resource pool.

As one embodiment, performing the first channel sensing comprises: receiving a second target signaling on the first time-frequency resource block in the first resource pool, where the second target signaling indicates a first reference signal, measuring the first reference signal on the first time-frequency resource block to obtain a measurement value for the first time-frequency resource block, and where the measurement value for the first time-frequency resource block is not higher than the first threshold, the first candidate time-frequency resource block belongs to the target resource pool.

As an embodiment, the given signaling indicates a second priority, the first target signaling indicates a first priority, and the first priority and the second priority are used together to determine the first threshold.

For one embodiment, the given signaling includes one or more fields in one PHY layer signaling.

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

As an embodiment, the given signaling is a SCI.

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

As an embodiment, the given signaling is transmitted on the PSCCH.

As an embodiment, the given signaling is transmitted on PSCCH and PSCCH.

As an embodiment, the given signaling indicates the given time-frequency resource block.

As an embodiment, the given signaling indicates a time-frequency resource occupied by the given time-frequency resource block.

As an embodiment, the given signaling comprises the second target signaling in this application.

As one embodiment, the given signaling indicates the given reference signal.

As an embodiment, the given reference signal is transmitted on the given time-frequency resource block.

As one embodiment, the given reference signal includes a first sequence.

As an embodiment, a first sequence is used to generate the given reference signal.

As an example, the first Sequence is a Pseudo-Random Sequence (Pseudo-Random Sequence).

As one example, the first Sequence is a Low Peak to Average Power Ratio (Low-PAPR Sequence, Low-Peak to Average Power Ratio).

As an embodiment, the first sequence is a Gold sequence.

As one embodiment, the first sequence is an M-sequence.

As an embodiment, the first sequence is a ZC (zadoff-Chu) sequence.

As an embodiment, the first Sequence sequentially undergoes Sequence Generation (Sequence Generation), Discrete Fourier Transform (DFT), Modulation (Modulation), Resource Element Mapping (Resource Element Mapping), and wideband symbol Generation (Generation) to obtain the given reference signal.

As an embodiment, the first sequence is sequentially subjected to sequence generation, resource element mapping, and wideband symbol generation to obtain the given reference signal.

As an embodiment, the first sequence is mapped onto a positive integer number of res(s).

As an embodiment, the given reference signal is used for data demodulation.

As an embodiment, the given reference signal is used for sounding channel state information.

For one embodiment, the given reference signal includes PSCCH DMRS.

For one embodiment, the given reference signal includes PSSCH DMRS.

As an embodiment, the given reference signal comprises an UL (Uplink) DMRS.

As one embodiment, the given Reference Signal includes a SL CSI-RS (Channel State Information Reference Signal).

As an embodiment, the given Reference Signal comprises a UL SRS (Sounding Reference Signal).

As one example, the given reference Signal comprises a S-SS/PSBCH Block (Sidelink Synchronization Signal/Physical Sidelink Broadcast Channel Block).

As an embodiment, the given reference signal comprises the first reference signal in this application.

As an embodiment, the given reference signal is measured on the given time domain resource block.

As an embodiment, the measuring for a given time-frequency resource block comprises measuring a given reference signal on the given time-frequency resource block.

As an embodiment, the given time domain resource block includes time-frequency resources occupied by the given reference signal.

As an embodiment, the phrase "measured value for the given time-frequency resource block" is included in the given time-frequency resource block, and performs reception based on coherent detection on the time-frequency resources occupied by the given reference signal, that is, the first node performs coherent reception on the signals on the time-frequency resources occupied by the given reference signal by using the first sequence included in the given reference signal, and measures the signal energy obtained after the coherent reception.

As an embodiment, the phrase "the measurement value for the given time-frequency resource block" is included in the given time-frequency resource block, and the receiving based on coherent detection is performed on the time-frequency resources occupied by the given reference signal, that is, the first node performs coherent receiving on the signals on the time-frequency resources occupied by the given reference signal by using the first sequence included by the given reference signal, and then performs linear averaging on the signal powers received on the plurality of REs included by the time-frequency resources occupied by the given reference signal, so as to obtain the receiving power.

As an embodiment, the phrase "measurement values for the given time-frequency resource block" is included on the given time-frequency resource block, and the reception based on coherent detection is performed on the time-frequency resources occupied by the given reference signal, that is, the first node performs coherent reception on the signals on the time-frequency resources occupied by the given reference signal with the first sequence included by the given reference signal, and averages the received signal energy in the time domain and the frequency domain to obtain the reception power.

As an embodiment, the phrase "measurement value for the given time-frequency resource block" is included in the given time-frequency resource block, and the reception based on energy detection is performed on the time-frequency resources occupied by the given reference signal, that is, the first node respectively senses the energy of the wireless signal on the plurality of REs included in the time-frequency resources occupied by the given reference signal, and averages over the plurality of REs included in the time-frequency resources occupied by the given reference signal to obtain the reception power.

As an embodiment, the phrase "measurement values for the given time-frequency resource block" comprises performing energy detection based reception on the given time-frequency resource block, i.e. the first node receives the power of the given reference signal on the given time-frequency resource block and linearly averages the received power of the given reference signal to obtain a signal strength indication.

As an embodiment, the phrase "measurement values for the given time-frequency resource block" comprises performing energy detection based reception on the given time-frequency resource block, i.e. the first node senses the energy of the wireless signal on the given time-frequency resource block and averages over time to obtain a signal strength indication.

As an embodiment, the phrase "measurement value for the given time-frequency resource block" includes blind detection-based reception on the given time-frequency resource block, that is, the first node receives a signal on the given time-frequency resource block and performs a decoding operation, and determines whether decoding is correct according to CRC bits, so as to obtain channel quality of the given reference signal on the time-frequency resources occupied by the given reference signal.

As an embodiment, the measurement value for the given time-frequency resource block includes the measurement value for the first time-frequency resource block in this application.

As one embodiment, the measurement value for the first time-frequency resource block includes RSRP (Reference Signal Received Power) of the first Reference Signal measured on the first time-frequency resource block.

As an embodiment, the measurement value for the first time-frequency resource block comprises RSSI (Received Signal Strength Indication) of the first reference Signal measured on the first time-frequency resource block.

As one embodiment, the measurement value for the first time-frequency resource block includes RSRQ (Reference Signal Receiving Quality) of the first Reference Signal measured on the first time-frequency resource block.

As an embodiment, the measurement value for the first time-frequency resource block includes SNR (Signal to Noise Ratio).

As an embodiment, the measurement value for the first time-frequency resource block includes SINR (Signal to Interference plus Noise Ratio).

As one embodiment, the measurement value for the first time-frequency resource block includes a SL SINR.

As one embodiment, the measurement values for the first time-frequency resource block include a SL RSRP.

As an embodiment, the measurement value for the first time-frequency resource block includes L1-RSRP (Layer 1-RSRP, Layer 1-reference signal received power).

As an embodiment, the measurement quantity for the first time-frequency resource block includes L3-RSRP (Layer 3-RSRP, Layer 3-reference signal received power).

As an embodiment, the measurement value for the first time-frequency resource block comprises a SL RSSI.

As one embodiment, the measurement values for the first time-frequency resource block include a SL RSRQ.

As an embodiment, the measurement value for the first time-frequency resource block includes a CQI (Channel Quality Indicator).

As an embodiment, the measurement value for the first time-frequency resource block comprises a SL CQI.

As an embodiment, the unit of the measurement value for the first time-frequency resource block is dBm (decibels).

As an embodiment, the unit of the measurement value for the first time-frequency resource block is dB (decibel).

As an embodiment, the unit of the measurement value for the first time-frequency resource block is mW (milliwatt).

As an embodiment, the unit of the measurement value for the first time-frequency resource block is W (watts).

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

As an embodiment, the first threshold is a non-positive integer.

As one embodiment, the unit of the first threshold is dBm.

As an example, the unit of the first threshold is dB.

As an embodiment, the unit of the first threshold is mW.

As one embodiment, the unit of the first threshold is W.

For one embodiment, the first threshold is one of a plurality of first class thresholds.

For one embodiment, any one of the plurality of first type thresholds is equal to (-128+ (n-1) × 2) dBm, where n is a positive integer no greater than 65.

As one embodiment, the plurality of first class thresholds are [ -infinity dBm, -128dBm, -126dBm,. -, 0dBm, infinity dBm ], respectively.

As one example, the first threshold is equal to (-128+ (n-1). times.2) dBm, where n is a positive integer no greater than 65.

As one embodiment, the first threshold is one of [ -infinity dBm, -128dBm, -126dBm,.., 0dBm, infinity dBm ].

For one embodiment, the first priority and the second priority are used together to determine an index of the first threshold value among the plurality of first class threshold values.

For one embodiment, the plurality of first class thresholds includes a plurality of threshold lists, and any one of the plurality of threshold lists includes a positive integer number of first class thresholds.

As an embodiment, the positive integer number of first class thresholds included in any one of the plurality of threshold lists is one of the plurality of first class thresholds.

As an embodiment, the first threshold list is said one of the plurality of threshold lists, the first threshold list including a positive integer of first class thresholds, the first threshold being one of the positive integer of first class thresholds included in the first threshold list.

As one embodiment, the second priority is used to indicate an index of the first threshold list in the plurality of threshold lists, and the first priority is used to indicate an index of the first threshold in the positive integer number of first class thresholds included in the first threshold list.

For one embodiment, the first threshold in the plurality of first class thresholds is indexed by an index equal to the sum of C1 times the first priority and B1, plus 1, B being a positive integer no greater than 12, C being a positive integer.

For one embodiment, the first threshold is indexed in the plurality of first class thresholds equal to the sum of C2 times the second priority and B2 plus 1, B2 is a positive integer no greater than 12, and C2 is a positive integer.

For one embodiment, the index of the first threshold in the plurality of first class thresholds is equal to the sum of C1 times B1 and the first priority, plus 1, with C1 being a positive integer.

For one embodiment, the index of the first threshold in the plurality of first class thresholds is equal to the sum of C2 times B2 and the second priority, plus 1, with C2 being a positive integer.

As an example, C1 is equal to 8.

As one example, C1 is equal to 10.

As an example, C2 is equal to 8.

As an example, the C2 is equal to 10.

As an embodiment, the first priority and the second priority are two positive integers, respectively.

As an example, the first priority is a non-negative integer no greater than 12.

As an example, the second priority is a non-negative integer no greater than 12.

As an embodiment, the first priority is one of P positive integers, and P is a positive integer.

As an embodiment, the second priority is one of P positive integers, where P is a positive integer.

As an embodiment, the first priority is a positive integer from 1 to P.

As an embodiment, the second priority is a positive integer from 1 to P.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between first signaling, M first-type signaling, second signaling and N second-type signaling according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the solid arrow represents one of the M first type signaling in the present application; the bold solid arrow represents the first signaling in this application; the dashed arrow represents one of the N second-type signaling in the present application; the bold dashed arrow represents the second signaling in this application.

In embodiment 7, the first signaling is any one of the M first-type signaling; the second signaling is any one of the N second-type signaling; the first signaling is different from the second signaling.

As an embodiment, a Format of the first signaling is different from a Format (Format) of the second signaling.

As an embodiment, the first signaling comprises a first field, the second signaling comprises the first field in the first signaling, the first field is used to indicate one of a first characteristic value or a second characteristic value; the first field in the first signaling indicates the first one of the first characteristic value and the second characteristic value; the first field in the second signaling indicates the second one of the first characteristic value and the second characteristic value.

As an embodiment, a first scrambling sequence is used to scramble the first signaling; a second scrambling sequence is used to scramble the second signaling; the first scrambling sequence is different from the second scrambling sequence.

As an embodiment, the first scrambling sequence is a pseudo-random sequence.

In one embodiment, the first scrambling sequence is an M-sequence.

As an embodiment, the first scrambling sequence is a Gold sequence.

As an embodiment, the second scrambling sequence is a pseudo-random sequence.

As an embodiment, the second scrambling sequence is an M-sequence.

As an embodiment, the second scrambling sequence is a Gold sequence.

As an embodiment, a first block of information bits is used for generating the first signaling, and a second block of information bits is used for generating the second signaling, the length of the first block of information bits being different from the length of the second block of information bits.

For one embodiment, the first block of information bits comprises Q1 bits, the second block of information bits comprises Q2 bits, and Q1 is not equal to Q2.

As an embodiment, the first signaling indicates the first alternative time-frequency resource block, the first alternative time-frequency resource block being associated to a first time-frequency resource block, a measurement of the first time-frequency resource block by a sender of the first signaling being below a first threshold.

As an embodiment, the second signaling indicates the first alternative time frequency resource block, the first alternative time frequency resource block is associated to a second time frequency resource block, a measurement of the second time frequency resource block by a sender of the second signaling is above a second threshold, the second threshold is not lower than the first threshold.

As an embodiment, the first signaling indicates the first alternative time frequency resource block, the first alternative time frequency resource block being associated to a first time frequency resource block, a measurement of a sender of the first signaling for the first time frequency resource block being below a first threshold; the second signaling indicates the first alternative time frequency resource block, the first alternative time frequency resource block is associated to a second time frequency resource block, the measurement of a sender of the second signaling for the second time frequency resource block is higher than a second threshold, and the second threshold is not lower than the first threshold.

As an embodiment, the first signaling indicates the first alternative time-frequency resource block, the first alternative time-frequency resource block being associated to a first time-frequency resource block, a measurement of the first time-frequency resource block by a sender of the first signaling being below a first threshold; the second signaling indicates the first alternative time frequency resource block, the first alternative time frequency resource block is associated to a second time frequency resource block, and a sender of the second signaling does not monitor the second time frequency resource block.

Example 8

Embodiment 8 illustrates a flowchart for determining whether a first alternative time-frequency resource block belongs to a target resource subset according to an embodiment of the present application, as shown in fig. 8. In fig. 8, a first numerical value and a second numerical value are determined in step S801; in step S802, determine whether M is greater than a first value; in step S803, it is determined whether N is smaller than a second value; when M is greater than the first value, step S803 is executed; when M is less than or equal to the first value, executing step S805, where the first alternative time-frequency resource block does not belong to the target resource subset; when the N is smaller than the second numerical value, executing step S804, wherein the first alternative time-frequency resource block belongs to a target resource subset; and when N is greater than or equal to the second value, performing step S805, where the first alternative time-frequency resource block does not belong to the target resource subset.

In embodiment 8, the magnitude relation between M and the first value, together with the magnitude relation between N and the second value, is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the first value is predefined.

For one embodiment, the first value is configurable.

As an example, the first value is a positive integer.

As an example, the first value is a non-negative integer.

As an example, the first value is a positive integer greater than 1.

As an embodiment, the second value is predefined.

For one embodiment, the second value is configurable.

As an example, the second value is a non-negative integer.

As an example, the second value is a positive integer greater than 1.

As an example, the second value is equal to 1.

As an embodiment, the first value is a positive integer not less than the second value.

As an embodiment, the first value is a positive integer greater than the second value.

As an embodiment, M is greater than the first value, N is less than the second value, and the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, M is greater than the first value, N is greater than the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is greater than the first value, N is equal to the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is smaller than the first value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is smaller than the first value, N is smaller than the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is smaller than the first value, N is larger than the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is smaller than the first value, N is equal to the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is equal to the first value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is equal to the first value, N is smaller than the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is equal to the first value, N is greater than the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, M is equal to the first value, N is equal to the second value, and the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, the first alternative time-frequency resource block belonging to the target resource subset means: the first alternative time frequency resource block is one time frequency resource block in the positive integer number of time frequency resource blocks included in the target resource subset.

As an embodiment, that the first alternative time-frequency resource block does not belong to the target resource subset means: the first alternative time frequency resource block is different from any time frequency resource block in the positive integer number of time frequency resource blocks included in the target resource subset.

Example 9

Embodiment 9 illustrates a flowchart for determining whether a first alternative time-frequency resource block belongs to a target resource subset according to an embodiment of the present application, as shown in fig. 9. In fig. 9, M first type signaling and N second type signaling are received in step S901; a fourth value is determined in step S902; in step S903, it is determined whether the ratio of N to M is smaller than a fourth value; when the ratio of N to M is smaller than the fourth value, step S904 is executed, where the first alternative time-frequency resource block belongs to the target resource subset; and when the ratio of N to M is greater than or equal to the fourth value, executing step S905, where the first alternative time frequency resource block does not belong to the target resource subset.

In embodiment 9, the relation of M to N is used to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, when the difference between M and N is greater than a third value, the first alternative time-frequency resource block belongs to the target resource subset; and when the difference value between the M and the N is smaller than a third value, the first alternative time-frequency resource block does not belong to the target resource subset.

As an embodiment, when the ratio of N to M is smaller than a fourth value, the first alternative time-frequency resource block belongs to the target resource subset; when the ratio of N to M is greater than a fourth value, the first candidate time-frequency resource block does not belong to the target resource subset.

As one embodiment, the M is a positive integer not less than the N.

As one embodiment, the M is a positive integer greater than the N.

As an embodiment, the third value is a real number greater than 0.

As an embodiment, the third value is equal to 0.

As an embodiment, the third value is predefined.

For one embodiment, the third value is configurable.

As one embodiment, the fourth value is a real number greater than 0 and less than 1.

As an example, said fourth value is equal to 1.

As an embodiment, the fourth value is predefined.

For one embodiment, the fourth value is configurable.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus used in a first node, as shown in fig. 10. In embodiment 10, the first node apparatus processing device 1000 is mainly composed of a first receiver 1001 and a first transmitter 1002.

For one embodiment, the first receiver 1001 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4, for example.

For one embodiment, the first transmitter 1002 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

In embodiment 10, the first receiver 1001 performs first channel sensing; the first receiver 1001 receives M first type signaling and N second type signaling, M and N being positive integers; the first transmitter 1002 transmits a first signal on a target time-frequency resource block; the first channel sensing is used to determine a target resource pool comprising a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one time frequency resource block in a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; any one first-class signaling in the M first-class signaling indicates the first alternative time-frequency resource block; any one of the N second-type signaling indicates the first candidate time-frequency resource block, and any one of the M first-type signaling is different from any one of the N second-type signaling; the M and the N are used together to determine whether the first alternative time-frequency resource block belongs to the target resource subset.

As an embodiment, the first signaling is any one of the M first type signaling; the second signaling is any one of the N second-type signaling; the first signaling is different from the second signaling.

As an embodiment, the senders of any two first type signaling in the M first type signaling are non-co-located; the senders of any two of the N second type signaling are non-co-located.

For an embodiment, the first transmitter 1002 transmits a first target signaling on the target time-frequency resource block; the first channel sensing is performed in a first resource pool, the first resource pool comprising a plurality of time-frequency resource blocks; any one of the plurality of time-frequency resource blocks included in the target resource pool is associated with one time-frequency resource block in the first resource pool; the first alternative time frequency resource block is associated to a first time frequency resource block, the first time frequency resource block being one of the plurality of time frequency resource blocks comprised by the first resource pool; the measurement value for the first time-frequency resource block is not higher than a first threshold value; the first target signaling is used to indicate the target time-frequency resource block; the first target signaling includes a first priority, which is used to determine the first threshold.

For one embodiment, the first node apparatus 1000 is a user equipment.

As an embodiment, the first node apparatus 1000 is a relay node.

As an embodiment, the first node apparatus 1000 is a base station apparatus.

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

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

Claims

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

2. The first node of claim 1, wherein the first signaling is any one of the M first type signaling; the second signaling is any one of the N second-type signaling; the first signaling is different from the second signaling.

3. The first node of claim 1 or 2, wherein the senders of any two of the M first type signaling are non-co-located; the senders of any two of the N second type signaling are non-co-located.

4. The first node according to claims 1 to 3, wherein the magnitude relation between the M and the first value, together with the magnitude relation between the N and the second value, is used for determining whether the first alternative time-frequency resource block belongs to the target resource subset; the first value is predefined or the first value is configurable; the second value is predefined or the second value is configurable.

5. The first node according to claims 1-3, wherein the relation of M to N is used for determining whether the first alternative time-frequency resource block belongs to the target resource subset.

6. The first node according to claims 1 to 5, comprising:

the first transmitter transmits a first target signaling on the target time frequency resource block;

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

a second transmitter for transmitting a first type of signaling;

the second receiver receives the first target signaling and the first signal on a target time frequency resource block;

wherein the one first type of signaling is used to indicate a first alternative time-frequency resource block; the target resource pool comprises a plurality of time-frequency resource blocks; the first alternative time frequency resource block is one of a plurality of time frequency resource blocks included in the target resource pool; the target time-frequency resource block belongs to a target resource subset, the target resource subset comprises a positive integer number of time-frequency resource blocks, and any one time-frequency resource block included in the target resource subset belongs to the target resource pool; the receiver of said one first type of signalling is used to determine whether said first alternative time-frequency resource block belongs to a target resource subset; the first target signaling indicates the target time frequency resource block.

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

sending a first signal on a target time frequency resource block;

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

sending a first type of signaling;