CN112055411A

CN112055411A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112055411A
Application number: CN201910491860.2A
Authority: CN
Inventors: 武露; 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-12-08
Anticipated expiration: 2039-06-06
Also published as: CN112055411B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The method comprises the steps that a first node monitors a first signaling in a first time-frequency resource group; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value; and judging whether the first time-frequency resource block belongs to the first candidate resource block set. The first signaling is used to determine the first block of time-frequency resources; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

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 for a companion link in wireless communication.

Background

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

The 3GPP has also started to initiate standards development and research work under the NR framework for the rapidly evolving Vehicle-to-evolution (V2X) service. The 3GPP has completed the work of making the requirements for the 5G V2X service and has written the standard TS 22.886. The 3GPP identified and defined a 4 large Use Case Group (Use Case Group) for the 5G V2X service, including: automatic queuing Driving (Vehicles platform), Extended sensing (Extended Sensors), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). The technical research work Item (SI, Study Item) of NR V2X was passed on 3GPP RAN #80 at the full meeting.

Disclosure of Invention

In an LTE (Long-term Evolution, Long term Evolution) V2X system, the probability of service collision can be reduced and the transmission reliability can be improved by channel sensing to assist resource selection. In the NR V2X system, how to optimally design the channel sensing and resource selection is a key issue to be considered.

In view of the above, the present application discloses a solution. 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.

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

monitoring first signaling in a first time-frequency resource group, wherein the first signaling is used for determining a first time-frequency resource block;

performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value;

judging whether the first time-frequency resource block belongs to a first candidate resource block set or not;

the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

As an embodiment, the problem to be solved by the present application is: in LTE V2X, only the case where the PSCCH and the associated PSCCH are transmitted in the same subframe is supported. In NR V2X, the scheme currently under discussion discusses, in addition to the co-slotted PSCCH and associated PSCCH transmissions, separate PSCCH transmissions, and the case where the PSCCH and associated PSCCH are transmitted in different slots. To support transmission in these multiple cases, the schemes of channel sensing and resource selection need to be reconsidered.

As an embodiment, the essence of the above method is that the first time-frequency resource block is a candidate resource, the first measurement value is used to determine whether the first time-frequency resource block needs to be Excluded (Excluded), and the first candidate resource block set is composed of Remaining (Remaining) candidate resources except for the Excluded candidate resource in all candidate resources; the first signaling is a PSCCH, the first data channel is a PSCCH associated with the first signaling, and whether channel sensing is performed in the PSCCH or the PSCCH is determined based on whether the first data channel belongs to a first time window. The method has the advantages that the channel sensing scheme and the resource selection scheme can support the PSCCH and the associated PSSCH transmission in the same time slot, and can also support the single PSCCH transmission and the PSCCH and the associated PSSCH transmission in different time slots.

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

selecting M candidate resource blocks in the first set of candidate resource blocks;

transmitting a first signal in the M candidate resource blocks;

wherein the first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks being one of the M0 candidate resource blocks; m is a positive integer, and M0 is a positive integer not smaller than M.

According to an aspect of the present application, the method is characterized in that, when the time domain resources occupied by the first data channel are located outside the first time window, the reference time-frequency resource group includes the first time-frequency resource group; and when the time domain resources occupied by the first data channel belong to the first time window, the reference time-frequency resource group comprises the time-frequency resources occupied by the first data channel.

As an embodiment, the essence of the above method is that when the first data channel does not belong to the first time window, channel sensing is performed in the PSCCH; channel sensing is performed in the psch when the first data channel belongs to a first time window.

According to an aspect of the present application, the above method is characterized in that the reference time-frequency resource group includes the first time-frequency resource group, the first measurement value and the first coefficient are used to determine a first value, and a magnitude relation between the first value and a target threshold is used to determine whether the first time-frequency resource block belongs to the first candidate resource block set.

As an example, the essence of the above method is that when channel sensing is performed in the PSCCH, the first measurement is PSCCH RSRP and the first value is a virtual PSSCH RSRP. The method has the advantages that whether the PSCCH and the associated PSSCH are transmitted in the same time slot or in a single PSCCH or in different time slots, the same threshold (namely the target threshold) can be adopted to judge whether a candidate resource needs to be eliminated, so that the standardization workload and the implementation complexity can be simplified.

receiving first information;

wherein the first information is used to indicate the first coefficient.

According to an aspect of the application, the above method is characterized in that the first signaling indicates a first index, the first index being used for determining a moving speed of a sender of the first signaling, the moving speed of the sender of the first signaling being used for determining the first coefficient.

monitoring a second signaling in a third time window;

executing channel perception in a second time-frequency resource group and obtaining a second measured value;

executing channel perception in a third time-frequency resource group and obtaining a third measured value;

the third time window comprises time domain resources occupied by the second time-frequency resource group and time domain resources occupied by the third time-frequency resource group; the second time-frequency resource group comprises time-frequency resources occupied by the second signaling, the second signaling is used for indicating configuration information of a second data channel, and the third time-frequency resource group comprises time-frequency resources occupied by the second data channel; the second and third measurements are used to determine the first coefficient.

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

receiving a first signal in M candidate resource blocks;

wherein the first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks is one of the M0 candidate resource blocks, M is a positive integer, and M0 is a positive integer not less than the M; a sender of the first signal monitors a first signaling in a first time-frequency resource group, the first signaling is used for determining a first time-frequency resource block, the sender of the first signal performs channel sensing in a reference time-frequency resource group and obtains a first measurement value, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, the first signaling is used for indicating configuration information of a first data channel, whether time-domain resources occupied by the first data channel belong to a first time window or not is used for determining the reference time-frequency resource group, and the first time window comprises the time-domain resources occupied by the first time-frequency resource group.

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

a first receiver that monitors a first signaling in a first group of time-frequency resources, the first signaling being used to determine a first block of time-frequency resources; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value;

the first processor is used for judging whether the first time-frequency resource block belongs to a first candidate resource block set or not;

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

a second receiver that receives the first signal in the M candidate resource blocks;

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

the channel sensing and resource selection methods proposed in this application can support multiple PSCCH/PSCCH transmission scenarios than PSCCH and associated PSCCH transmissions as of a slot, PSCCH transmissions alone, and PSCCH and associated PSCCH transmissions of different slots.

The channel sensing and resource selection methods proposed in the present application can support channel sensing in PSCCH and channel sensing in PSCCH.

In the channel sensing and resource selection method proposed in this application, a virtual PSSCH RSRP is obtained according to PSCCH RSRP. Thus, under multiple PSCCH/PSCCH transmissions (e.g., a PSCCH and associated PSCCH transmission as a slot, a PSCCH transmission alone, and a PSCCH and associated PSCCH transmission for different slots), the same threshold may be used to determine whether a candidate resource needs to be excluded, thereby simplifying the standardization effort and implementation complexity.

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 shows a flow chart of a first signaling, a first measurement value and a determination of whether a first time frequency resource block belongs to a first set of candidate resource blocks according to an embodiment of the 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 whether time-domain resources occupied by a first data channel belong to a first time-frequency resource group used for determining a reference time-frequency resource group according to an embodiment of the present application;

fig. 7 shows a schematic diagram of a first measurement value used for determining whether a first time-frequency resource block belongs to a first candidate resource block set according to an embodiment of the present application;

fig. 8 shows a schematic diagram of a first measurement value used for determining whether a first time-frequency resource block belongs to a first candidate resource block set according to another embodiment of the present application;

fig. 9 shows a diagram in which a magnitude relation between a given value and a target threshold is used for determining whether a first time-frequency resource block belongs to a first candidate resource block set according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of the determination of a first coefficient according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of the determination of a first coefficient according to another embodiment of the present application;

FIG. 12 shows a schematic diagram of the determination of a first coefficient according to another embodiment of the present application;

FIG. 13 shows a schematic diagram of the determination of a first coefficient according to another embodiment of the present application;

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

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a flowchart of first signaling, a first measurement value and a process for determining whether a first time/frequency resource block belongs to a first candidate resource block set according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 1, a first node in the present application monitors a first signaling in a first time-frequency resource group in step 101, where the first signaling is used to determine a first time-frequency resource block; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value in step 102; determining whether the first time-frequency resource block belongs to a first candidate resource block set in step 103; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

As an embodiment, the first set of time-frequency resources only includes the time-frequency resources occupied by the first signaling.

As an embodiment, the first group of time-frequency resources further includes time-frequency resources, other than the time-frequency resources occupied by the first signaling.

As an embodiment, the first set of time frequency resources includes a positive integer number of REs (Resource elements).

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

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

As one embodiment, the first set of time-frequency resources includes a positive integer number of subframes (sub-frames) in the time domain.

As an embodiment, the first set of time-frequency resources occurs multiple times in the time domain.

As a sub-embodiment of the above-mentioned embodiment, the first time-frequency resource group is equally spaced between any two adjacent occurrences in the time domain.

As a sub-embodiment of the foregoing embodiment, an interval between any two adjacent occurrences of the first group of time-frequency resources in the time domain is a positive integer multiple of the first interval; the first interval comprises a positive integer number of consecutive multicarrier symbols, or the first interval comprises a positive integer number of consecutive time slots, or the first interval comprises a positive integer number of consecutive subframes.

As an embodiment, the first set of time-frequency resources occurs only once in the time domain.

As an embodiment, the first set of time-frequency resources includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the first time-frequency resource group includes a positive integer number of PRBs (Physical resource blocks) in a frequency domain.

As an embodiment, the first set of time-frequency resources includes a positive integer number of sub-channels (sub-channels) in a frequency domain.

As an embodiment, the first set of time-frequency resources belongs to a sensing window in the time domain.

As an embodiment, the first set of time-frequency resources is used for PSCCH (Physical downlink Control Channel) transmission.

As an embodiment, the monitoring refers to receiving based on energy detection, that is, sensing (Sense) the energy of the wireless signal in the first time-frequency resource group, and averaging to obtain the received energy. If the received energy is greater than a second given threshold, determining that the first signaling is detected; otherwise, judging that the first signaling is not detected.

As an embodiment, the monitoring refers to coherent reception, that is, coherent reception is performed in the first time-frequency resource group, and energy of a signal obtained after the coherent reception is measured. If the energy of the signal obtained after the coherent reception is greater than a first given threshold value, judging that the first signaling is detected; otherwise, judging that the first signaling is not detected.

As an embodiment, the monitoring refers to blind detection, that is, receiving signals in the first time-frequency resource group and performing a decoding operation, and if it is determined that the decoding is correct according to CRC (Cyclic Redundancy Check) bits, determining that the first signaling is detected; otherwise, judging that the first signaling is not detected.

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

As an embodiment, the first signaling is Broadcast (Broadcast).

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

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

As an embodiment, the first signaling is transmitted over a companion link (Sidelink).

As an embodiment, the first signaling is dci (downlink Control information) signaling.

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

As an embodiment, the first signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the first signaling is transmitted over a wireless interface between user equipments.

As an embodiment, the first signaling is transmitted over a wireless interface accompanying a link (Sidelink).

As an embodiment, the first signaling is transmitted through a radio interface (radio interface) between the user equipment and the base station equipment.

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

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

As an embodiment, the target recipient of the first signaling comprises the first node in the present application.

As an embodiment, the target recipient of the first signaling does not comprise the first node in the present application.

As an embodiment, the first time-frequency resource block includes a positive integer number of REs.

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

As an embodiment, the first time-frequency resource block includes a positive integer number of slots in a time domain.

As an embodiment, the first time-frequency resource block includes one slot in the time domain.

As an embodiment, the first time-frequency resource block includes a positive integer number of subframes in a time domain.

As an embodiment, the first time-frequency resource block includes one subframe in a time domain.

As an embodiment, the first time-frequency resource block includes a positive integer number of subcarriers in a frequency domain.

As an embodiment, the first time-frequency resource block includes a positive integer number of PRBs in a frequency domain.

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

As an embodiment, the first time-frequency resource block belongs to a selection time window (selection window) in a time domain.

As an embodiment, the first set of candidate resource blocks belongs to a selection window (selection window) in a time domain.

As an embodiment, the first set of candidate resource blocks includes M0 candidate resource blocks, M0 being a positive integer.

As a sub-embodiment of the above embodiment, when the first time-frequency resource block belongs to the first candidate resource block set, the first time-frequency resource block includes M1 candidate resource blocks, any candidate resource block of the M1 candidate resource blocks is one candidate resource block of the M0 candidate resource blocks, and M1 is a positive integer no greater than the M0.

As a sub-implementation of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks belongs to a selection window (selection window) in the time domain.

As a sub-embodiment of the foregoing embodiment, two candidate resource blocks of the M0 candidate resource blocks include unequal numbers of REs.

As a sub-embodiment of the foregoing embodiment, the number of REs included in any two candidate resource blocks of the M0 candidate resource blocks is equal.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of REs.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of multicarrier symbols in the time domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of slots in the time domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes one slot in the time domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of subframes in the time domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes one sub-frame in the time domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of subcarriers in the frequency domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of PRBs in the frequency domain.

As a sub-embodiment of the foregoing embodiment, any candidate resource block of the M0 candidate resource blocks includes a positive integer number of sub-channels in the frequency domain.

As an embodiment, the first signaling is used to indicate a first block of time-frequency resources.

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

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

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

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

As an embodiment, the first signaling indicates that a first time-frequency resource block is Reserved (Reserved).

As an embodiment, the first signaling indicates that a first time-frequency resource block is reserved by a sender of the first signaling.

As an embodiment, the first signaling is used to indicate a first time-frequency resource block, where the first time-frequency resource block includes a time-frequency resource occupied by the first data channel.

As an embodiment, the first signaling includes a first Field (Field), and the first Field included in the first signaling is used to indicate a first time-frequency resource block, where the first time-frequency resource block includes a time-frequency resource occupied by the first data channel.

As one embodiment, the first data channel is a channel allocated for data transmission.

As one embodiment, the first data channel is a channel allocated for data transmission on a companion link.

As an embodiment, the first data Channel is a SL-SCH (Sidelink Shared Channel).

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

As an embodiment, the first signaling directly indicates configuration information of the first data channel.

As an embodiment, the first signaling indirectly indicates configuration information of the first data channel.

As an embodiment, the first signaling explicitly indicates configuration information of the first data channel.

As an embodiment, the first signaling implicitly indicates configuration information for the first data channel.

As an embodiment, the time domain resource occupied by the first data channel may be inferred from the time domain resource occupied by the first signaling.

As an embodiment, the time domain resource occupied by the first signaling and the time domain resource occupied by the first data channel both belong to the same Slot (Slot).

As an embodiment, the time domain resource occupied by the first signaling and the time domain resource occupied by the first data channel both belong to the same Subframe (Subframe).

As an embodiment, the time domain resource occupied by the first signaling and the time domain resource occupied by the first data channel both belong to the same short slot (Mini-slot).

As an embodiment, both the frequency domain resource occupied by the first signaling and the frequency domain resource occupied by the first data channel belong to the same BWP (BandWidth Part).

As an embodiment, the frequency domain resource occupied by the first signaling and the frequency domain resource occupied by the first data channel both belong to the same sub-band (Subband).

As an embodiment, both the frequency domain resource occupied by the first signaling and the frequency domain resource occupied by the first data channel belong to the same Carrier (Carrier).

As an embodiment, the configuration information of the first data channel includes an air interface resource occupied by the first data channel.

As an embodiment, the configuration information of the first Data channel includes at least one of a frequency domain resource occupied by the first Data channel, a time domain resource occupied by the first Data channel, an HARQ (Hybrid Automatic Repeat reQuest) process number, an NDI (New Data Indicator), a Modulation Coding Scheme (MCS), or a Redundancy Version (RV).

As an embodiment, the reference group of time-frequency resources comprises a positive integer number of REs (Resource elements).

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

For one embodiment, the reference group of time-frequency resources includes a positive integer number of slots (slots) in a time domain.

As one embodiment, the set of reference time-frequency resources includes a positive integer number of subframes (sub-frames) in the time domain.

For one embodiment, the reference group of time-frequency resources includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the reference time-frequency resource group includes a positive integer number of PRBs (Physical resource blocks) in a frequency domain.

As an embodiment, the reference group of time-frequency resources comprises a positive integer number of sub-channels (sub-channels) in the frequency domain.

As an embodiment, the set of reference time-frequency resources belongs to a perceptual time window (sensing window) in the time domain.

For one embodiment, the set of reference time-frequency resources comprises the first set of time-frequency resources.

As an embodiment, the set of reference time-frequency resources is used for PSCCH transmission.

For one embodiment, the set of reference time-frequency resources is used for PSSCH transmission.

As one embodiment, the channel sensing includes sensing.

As one embodiment, the channel sensing includes energy detection, i.e., sensing (Sense) the energy of the wireless signal and averaging to obtain an average received energy.

As one embodiment, the channel sensing includes power detection, i.e., sensing (Sense) the power of the wireless signal and averaging to obtain an average received power.

As an embodiment, the channel sensing includes coherent detection, i.e. coherent reception, and the average energy of the signal obtained after the coherent reception is measured.

As an embodiment, the channel sensing includes coherent detection, i.e. coherent reception, and the average power of the signal obtained after the coherent reception is measured.

As an embodiment, the channel sensing performed in the reference group of time-frequency resources comprises: a first reference signal is received and an average received power of the first reference signal is measured.

As an embodiment, the channel sensing performed in the reference group of time-frequency resources comprises: the first reference signal is coherently received and the average received power of the signal obtained after coherent reception is measured.

For one embodiment, the first measurement value comprises RSRP (Reference Signal Received Power).

As one embodiment, the first measurement value includes L1 (layer 1) -RSRP.

For one embodiment, the first measurement value comprises RSRQ (Reference Signal Received Quality).

As an embodiment, the first measurement value includes a CQI (Channel Quality Indicator).

As an embodiment, the first measurement value comprises RSSI (Received Signal Strength Indicator).

As an example, the first measurement is in dBm (decibels).

For one embodiment, first reference signals are transmitted within the set of reference time-frequency resources; measurements for the first reference signal are used to generate the first measurement value.

As a sub-embodiment of the above embodiment, the first measurement value comprises an RSRP of the first reference signal.

As a sub-embodiment of the above embodiment, the first measurement value comprises an RSRQ of the first reference signal.

As a sub-embodiment of the above embodiment, the first measurement value comprises RSSI of the first reference signal.

As one embodiment, the first Reference Signal includes SL (SideLink, companion link) RS (Reference Signal).

For one embodiment, the first reference signal includes a CSI-RS (Channel-State Information references signal).

For one embodiment, the first reference signal includes a SL CSI-RS.

As one embodiment, the first Reference Signal includes an SRS (Sounding Reference Signal).

For one embodiment, the first reference signal includes a SL SRS.

As one embodiment, the first Reference signal includes DMRS (DeModulation Reference Signals).

As one embodiment, the first reference signal includes a SL DMRS.

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

As an embodiment, the first reference signal occupies only a part of REs within the reference group of time-frequency resources.

For one embodiment, the first reference signal occupies all REs in the reference group of time-frequency resources.

As one embodiment, the first reference signal includes a DMRS of a first control channel.

As a sub-embodiment of the above-mentioned embodiment, the first control channel carries the first signaling.

As a sub-embodiment of the above embodiment, the first control channel is a PSCCH.

As a sub-embodiment of the foregoing embodiment, the reference group of time-frequency resources includes the first group of time-frequency resources.

As one embodiment, the first reference signal includes a DMRS of a first data channel.

As a sub-embodiment of the foregoing embodiment, the reference time-frequency resource group includes time-frequency resources occupied by the first data channel.

As an embodiment, the sender of the first reference signal is the sender of the first signaling.

As an embodiment, the sender of the first reference signal is not the sender of the first signaling.

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

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

As one embodiment, the first time window includes a positive integer number of consecutive subframes (subframes).

As an embodiment, the first time window belongs to a sensing window.

As a sub-embodiment of the above embodiment, the first time window is a perceptual time window.

As a sub-embodiment of the above embodiment, the perceptual time window further comprises time domain resources outside said first time window.

As one embodiment, the first time window comprises a sensing window.

As a sub-embodiment of the above embodiment, the first time window further includes time domain resources outside the sensing time window.

As one embodiment, the first time window includes a time slot used for transmitting the first signaling.

As a sub-embodiment of the above embodiment, the first time window is a time slot used for transmitting the first signaling.

As a sub-embodiment of the above embodiment, the first time window further comprises time slots other than the time slot used for transmitting the first signaling.

As one embodiment, the first time window includes subframes used to transmit the first signaling.

As a sub-embodiment of the above embodiment, the first time window is a subframe used for transmitting the first signaling.

As a sub-embodiment of the above embodiment, the first time window further includes subframes other than the subframe used for transmitting the first signaling.

As an embodiment, X1 signaling are monitored in a second time window, the second time window including the first time window, X1 is a positive integer greater than 1; the X1 signalings are respectively used for determining X1 time-frequency resource blocks, X1 signalings respectively correspond to X1 time-frequency resource groups, and the channel sensing is executed in the X1 time-frequency resource groups to respectively obtain X1 measured values; the first signaling is one of the X1 signaling, the first time-frequency resource block is one of the X1 time-frequency resource blocks determined by the first signaling, the reference time-frequency resource group is one of the X1 time-frequency resource groups corresponding to the first signaling, and the first measurement value is one of the X1 measurement values obtained in the reference time-frequency resource group; the X1 measurements are used to determine whether the X1 time-frequency resource blocks belong to the first set of candidate resource blocks, respectively.

As a sub-embodiment of the above embodiment, the second time window comprises a sensing window.

As a sub-embodiment of the above embodiment, the second time window is the same as the first time window.

As a sub-embodiment of the foregoing embodiment, the second time window further includes time domain resources outside the first time window.

As a sub-embodiment of the above embodiment, only the X1 signalings are detected during the signaling monitoring in the first time window.

As a sub-embodiment of the above embodiment, there is one signaling other than the X1 signaling detected during the signaling monitoring process in the first time window.

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

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

As an embodiment, the UE201 supports transmission in a companion link.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports the Uu interface.

As an embodiment, the UE201 supports car networking.

As an embodiment, the UE201 supports V2X service.

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

As an embodiment, the UE241 supports transmission in a companion link.

As an embodiment, the UE241 supports a PC5 interface.

As an embodiment, the UE241 supports the Uu interface.

As an embodiment, the UE241 supports car networking.

As an embodiment, the UE241 supports V2X service.

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

As one example, the gNB203 supports internet of vehicles.

As an embodiment, the gNB203 supports V2X traffic.

As one embodiment, the gNB203 supports a PC5 interface.

Example 3

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

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

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

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

As an embodiment, the first information in the present application is generated in the MAC sublayer 352.

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

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

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

Example 4

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

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

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 apparatus at least: monitoring first signaling in a first time-frequency resource group, wherein the first signaling is used for determining a first time-frequency resource block; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value; judging whether the first time-frequency resource block belongs to a first candidate resource block set or not; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in the present application.

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: monitoring first signaling in a first time-frequency resource group, wherein the first signaling is used for determining a first time-frequency resource block; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value; judging whether the first time-frequency resource block belongs to a first candidate resource block set or not; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

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: receiving a first signal in M candidate resource blocks; wherein the first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks is one of the M0 candidate resource blocks, M is a positive integer, and M0 is a positive integer not less than the M; a sender of the first signal monitors a first signaling in a first time-frequency resource group, the first signaling is used for determining a first time-frequency resource block, the sender of the first signal performs channel sensing in a reference time-frequency resource group and obtains a first measurement value, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, the first signaling is used for indicating configuration information of a first data channel, whether time-domain resources occupied by the first data channel belong to a first time window or not is used for determining the reference time-frequency resource group, and the first time window comprises the time-domain resources occupied by the first time-frequency resource group.

As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in this application.

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: receiving a first signal in M candidate resource blocks; wherein the first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks is one of the M0 candidate resource blocks, M is a positive integer, and M0 is a positive integer not less than the M; a sender of the first signal monitors a first signaling in a first time-frequency resource group, the first signaling is used for determining a first time-frequency resource block, the sender of the first signal performs channel sensing in a reference time-frequency resource group and obtains a first measurement value, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, the first signaling is used for indicating configuration information of a first data channel, whether time-domain resources occupied by the first data channel belong to a first time window or not is used for determining the reference time-frequency resource group, and the first time window comprises the time-domain resources occupied by the first time-frequency resource group.

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} is configured to monitor the first signaling in the first set of time-frequency resources in this application.

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

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

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 is used to perform the channel sensing and obtain the first measurement in the reference time-frequency resource group in the present 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} is used to monitor the second signaling in the third time window in this application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 is used to perform the channel sensing and obtain the second measurement in the second group of time-frequency resources in the present application.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 is used to perform the channel sensing and obtain the third measurement in the third set of time-frequency resources in the present 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, and the data source 467 may be utilized to determine whether the first set of candidate resource blocks belongs to the first set of candidate resource blocks.

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 is used to select the M candidate resource blocks in this application among the first set of candidate resource blocks in this application.

As one 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 is used to transmit the first signal in the present application in the M candidate resource blocks.

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 to receive the first signal in the present application in the M candidate resource blocks in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In the context of the attached figure 5,first nodeU02 andsecond nodeN01 are communicated over the air interface. In fig. 5, the steps in the dotted line blocks F1 and F2 are optional.

For theSecond node N01Receiving a first signal in M candidate resource blocks in step S10;

for theFirst node U02Monitoring a first signaling in a first set of time-frequency resources in step S20; receiving the first information in step S21; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value in step S22; second signaling is monitored in a third time window in step S23; performing channel sensing in the second group of time-frequency resources and obtaining a second measurement value in step S24; performing channel sensing in a third group of time-frequency resources and obtaining a third measurement value in step S25; judging whether the first time-frequency resource block belongs to a first candidate resource block set in step S26; selecting M candidate resource blocks in a first set of candidate resource blocks in step S27; in step S28The first signal is transmitted in M candidate resource blocks.

In embodiment 5, the first signalling is used by the first node U02 to determine a first block of time frequency resources; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used by the first node U02 to determine whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used to indicate configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used by the first node U02 to determine the reference time-frequency resource group, where the first time window includes the time domain resource occupied by the first time-frequency resource group. The first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks being one of the M0 candidate resource blocks; m is a positive integer, and M0 is a positive integer not smaller than M. The first information is used to indicate the first coefficient. The third time window comprises time domain resources occupied by the second time-frequency resource group and time domain resources occupied by the third time-frequency resource group; the second time-frequency resource group comprises time-frequency resources occupied by the second signaling, the second signaling is used for indicating configuration information of a second data channel, and the third time-frequency resource group comprises time-frequency resources occupied by the second data channel; the second and third measurements are used by the first node U02 to determine the first coefficient.

As an embodiment, the sender of the first signaling is the second node.

As an embodiment, the sender of the first signaling is a node other than the second node.

As an embodiment, the sender of the first signaling is a user equipment.

As an embodiment, the sender of the first signaling is a relay device.

As an embodiment, the sender of the first signaling is a base station apparatus.

As an embodiment, the sender of the second signaling is the second node.

As an embodiment, the sender of the second signaling is a node other than the second node.

As an embodiment, the sender of the second signaling is a user equipment.

As an embodiment, the sender of the second signaling is a relay device.

As an embodiment, the sender of the second signaling is a base station device.

As an embodiment, the sender of the first information is the second node.

As an embodiment, the sender of the first information is a node other than the second node.

As an embodiment, the sender of the first information is a user equipment.

As an embodiment, the sender of the first information is a relay device.

As an embodiment, the sender of the first information is a base station apparatus.

As an embodiment, the sender of the first information is the first node.

As an embodiment, the sender of the first information is a sender of the first signaling.

As an embodiment, the sender of the first information is not the sender of the first signaling.

As one embodiment, M is greater than 1.

As an example, said M is equal to 1.

As one example, the M0 is greater than 1.

As an example, the M0 is equal to 1.

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

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

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

As one embodiment, the first signal is Unicast (Unicast).

As an embodiment, the first signal is multicast (Groupcast).

As one embodiment, the first signal is Broadcast (Broadcast).

As an embodiment, the first signal is transmitted through a data channel.

As an embodiment, the first signal is transmitted over a companion link (Sidelink).

As an embodiment, the first signal is transmitted through a Radio Interface (Radio Interface) between user equipments.

As an embodiment, the first signal is transmitted through a Radio Interface (Radio Interface) used for communication between the first node and the second node in this application.

As an embodiment, the first signal is transmitted over a wireless interface accompanying a link (Sidelink).

As an embodiment, the first signal is transmitted through a Radio Interface (Radio Interface) between the user equipment and the base station equipment.

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

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

As an embodiment, the first signal is transmitted through a PUSCH (Physical Uplink Shared CHannel).

As an embodiment, the first signal is transmitted through a SL-SCH (Sidelink Shared Channel).

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

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

As one embodiment, the first Signal includes a SL DMRS (SideLink DeModulation Reference Signal) with a link DeModulation Reference Signal.

For one embodiment, the first Signal includes a SL CSI-RS (SideLink Channel State Information-Reference Signal) accompanied by a link Channel State Information Reference Signal.

As one embodiment, the first signal includes at least one of a reference signal or a data signal.

For one embodiment, the first signal includes a reference signal.

For one embodiment, the first signal includes a reference signal and a data signal.

For one embodiment, the first signal comprises a data signal.

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

As an embodiment, the first signal carries CSI (Channel-State Information).

As an embodiment, the first node self-selects the M candidate resource blocks in the first set of candidate resource blocks.

As an embodiment, the first node randomly selects the M candidate resource blocks in the first set of candidate resource blocks.

As an embodiment, the M0 candidate resource blocks correspond to M0 measurement quantities one-to-one, and the M candidate resource blocks are composed of M candidate resource blocks corresponding to the lowest measurement quantity in the first candidate resource block set.

For one embodiment, the first node randomly selects the M candidate resource blocks in a first subset of candidate resource blocks; the M0 candidate resource blocks correspond to M0 measurement quantities one to one, and the first candidate resource block subset consists of M2 candidate resource blocks corresponding to the lowest measurement quantity in the first candidate resource block set; m2 is a positive integer less than the M0 and not less than the M.

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

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

As one embodiment, the third time window includes a positive integer number of consecutive subframes (subframes).

As an embodiment, the third time window belongs to a sensing window.

For one embodiment, the third time window comprises a sensing window.

For one embodiment, the third time window includes time domain resources outside a sensing window.

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

As an embodiment, the second signaling is Broadcast (Broadcast).

As an embodiment, the second signaling is multicast (Groupcast).

As an embodiment, the second signaling is Unicast (Unicast).

As an embodiment, the second signaling is transmitted over a companion link (Sidelink).

As an embodiment, the second signaling is dci (downlink Control information) signaling.

As an embodiment, the second signaling is SCI (Sidelink Control Information) signaling.

As an embodiment, the second signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the second signaling is transmitted over a wireless interface between user equipments.

As an embodiment, the second signaling is transmitted over a wireless interface accompanying a link (Sidelink).

As an embodiment, the second signaling is transmitted through a Radio Interface (Radio Interface) between the user equipment and the base station equipment.

As an embodiment, the second signaling is transmitted through a Uu interface.

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

As an embodiment, the sender of the second signaling is the same as the sender of the first signaling.

As an embodiment, a sender of the second signaling and a sender of the first signaling are different.

As an embodiment, the target recipient of the second signaling comprises the first node in the present application.

As an embodiment, the target recipient of the second signaling does not comprise the first node in the present application.

As an embodiment, the second group of time-frequency resources only includes the time-frequency resources occupied by the second signaling.

As an embodiment, the second group of time-frequency resources further includes time-frequency resources, other than the time-frequency resources occupied by the second signaling.

As an embodiment, the second group of time-frequency resources comprises a positive integer number of REs (Resource elements).

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

For one embodiment, the second group of time-frequency resources includes a positive integer number of slots (slots) in a time domain.

As one embodiment, the second group of time-frequency resources includes a positive integer number of subframes (sub-frames) in the time domain.

For one embodiment, the second group of time-frequency resources includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the second group of time-frequency resources includes a positive integer number of PRBs (Physical resource blocks) in the frequency domain.

As an embodiment, the second group of time-frequency resources comprises a positive integer number of sub-channels (sub-channels) in the frequency domain.

As an embodiment, the second set of time-frequency resources is used for PSCCH (Physical downlink Control Channel) transmission.

As one embodiment, the channel sensing performed in the second group of time-frequency resources includes: a second reference signal is received and an average received power of the second reference signal is measured.

As one embodiment, the channel sensing performed in the second group of time-frequency resources includes: and performing coherent reception on the second reference signal, and measuring the average received power of the signal obtained after the coherent reception.

As one embodiment, the channel sensing performed in the third group of time-frequency resources includes: a third reference signal is received and an average received power of the third reference signal is measured.

As one embodiment, the channel sensing performed in the third group of time-frequency resources includes: and carrying out coherent reception on the third reference signal, and measuring the average received power of the signal obtained after the coherent reception.

For one embodiment, the second measurement value comprises RSRP (Reference Signal Received Power).

As one embodiment, the second measurement value includes L1 (layer 1) -RSRP.

For one embodiment, the second measurement value comprises RSRQ (Reference Signal Received Quality).

As an embodiment, the second measurement value includes a CQI (Channel Quality Indicator).

As an embodiment, the second measurement value comprises RSSI (Received Signal Strength Indicator).

As an example, the second measurement is in dBm (decibels).

For one embodiment, second reference signals are transmitted within the second group of time-frequency resources; measurements for the second reference signal are used to generate the second measurement value.

As a sub-embodiment of the above embodiment, the second measurement value comprises an RSRP of the second reference signal.

As a sub-embodiment of the above embodiment, the second measurement value comprises an RSRQ of the second reference signal.

As a sub-embodiment of the above embodiment, the second measurement value comprises RSSI of the second reference signal.

As one embodiment, the second Reference Signal includes SL (SideLink, companion link) RS (Reference Signal).

For one embodiment, the second Reference signal includes a CSI-RS (Channel-State Information references Signals).

For one embodiment, the second reference signal includes a SL CSI-RS.

As an embodiment, the second Reference Signal includes SRS (Sounding Reference Signal).

For one embodiment, the second reference signal includes a SL SRS.

As one embodiment, the second Reference signal includes DMRS (DeModulation Reference Signals).

As one embodiment, the second reference signal includes a SL DMRS.

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

As one embodiment, the second reference signal includes a DMRS of a second control channel.

As a sub-embodiment of the above embodiment, the second control channel carries the second signaling.

As a sub-embodiment of the above embodiment, the second control channel is a PSCCH.

In one embodiment, the second group of time-frequency resources includes time-frequency resources occupied by the second reference signal.

As an embodiment, the third group of time-frequency resources includes a positive integer number of REs (Resource elements).

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

For one embodiment, the third group of time-frequency resources includes a positive integer number of slots (slots) in a time domain.

As one embodiment, the third group of time-frequency resources includes a positive integer number of subframes (sub-frames) in the time domain.

For one embodiment, the third group of time-frequency resources includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the third time-frequency resource group includes a positive integer number of PRBs (Physical resource blocks) in the frequency domain.

As an embodiment, the third group of time-frequency resources comprises a positive integer number of sub-channels (sub-channels) in the frequency domain.

As an embodiment, the third group of time-frequency resources belongs to a perceptual time window (sensing window) in the time domain.

For one embodiment, the third group of time-frequency resources is used for psch transmission.

For one embodiment, the third measurement value comprises RSRP (Reference Signal Received Power).

As an embodiment, the third measurement value includes L1 (layer 1) -RSRP.

For one embodiment, the third measurement value comprises RSRQ (Reference Signal Received Quality).

As an embodiment, the third measurement value includes a CQI (Channel Quality Indicator).

As an embodiment, the third measurement value comprises RSSI (Received Signal Strength Indicator).

As an example, the third measurement is in dBm (decibels).

For one embodiment, third reference signals are transmitted within the third group of time-frequency resources; measurements for the third reference signal are used to generate the third measurement value.

As a sub-embodiment of the above embodiment, the third measurement value comprises an RSRP of the second reference signal.

As a sub-embodiment of the above embodiment, the third measurement value comprises an RSRQ of the second reference signal.

As a sub-embodiment of the above embodiment, the third measurement value comprises RSSI of the second reference signal.

As one embodiment, the third Reference Signal includes SL (SideLink, companion link) RS (Reference Signal).

For one embodiment, the third Reference signal includes a CSI-RS (Channel-State Information references Signals).

For one embodiment, the third reference signal includes a SL CSI-RS.

As an embodiment, the third Reference Signal includes SRS (Sounding Reference Signal).

For one embodiment, the third reference signal includes a SL SRS.

As an embodiment, the third Reference signal includes DMRS (DeModulation Reference Signals).

As one embodiment, the third reference signal includes a SL DMRS.

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

As one embodiment, the third reference signal includes the DMRS of the second data channel.

In one embodiment, the third group of time-frequency resources includes time-frequency resources occupied by the third reference signal.

As an embodiment, the second signaling directly indicates configuration information of the second data channel.

As an embodiment, the second signaling indirectly indicates configuration information of the second data channel.

As an embodiment, the second signaling explicitly indicates configuration information of the second data channel.

As an embodiment, the second signaling implicitly indicates configuration information of the second data channel.

As an embodiment, the time domain resource occupied by the second data channel may be inferred from the time domain resource occupied by the second signaling.

As an embodiment, the time domain resource occupied by the second signaling and the time domain resource occupied by the second data channel both belong to the same Slot (Slot).

As an embodiment, the time domain resource occupied by the second signaling and the time domain resource occupied by the second data channel both belong to the same Subframe (Subframe).

As an embodiment, the time domain resource occupied by the second signaling and the time domain resource occupied by the second data channel both belong to the same short slot (Mini-slot).

As an embodiment, both the frequency domain resource occupied by the second signaling and the frequency domain resource occupied by the second data channel belong to the same BWP (BandWidth Part).

As an embodiment, the frequency domain resource occupied by the second signaling and the frequency domain resource occupied by the second data channel both belong to the same sub-band (Subband).

As an embodiment, both the frequency domain resource occupied by the second signaling and the frequency domain resource occupied by the second data channel belong to the same Carrier (Carrier).

As an embodiment, the configuration information of the second data channel includes air interface resources occupied by the second data channel.

As an embodiment, the configuration information of the second Data channel includes at least one of a frequency domain resource occupied by the second Data channel, a time domain resource occupied by the second Data channel, an HARQ (Hybrid Automatic Repeat reQuest) process number, an NDI (New Data Indicator), a Modulation Coding Scheme (MCS), or a Redundancy Version (RV).

Example 6

Embodiment 6 illustrates a schematic diagram of determining whether a time-domain resource occupied by a first data channel belongs to a first time window for a reference time-frequency resource group according to an embodiment of the present application, as shown in fig. 6.

In embodiment 6, when the time domain resources occupied by the first data channel are located outside the first time window, the reference time-frequency resource group includes the first time-frequency resource group in this application; when the time domain resource occupied by the first data channel belongs to the first time window, the reference time-frequency resource group comprises the time-frequency resource occupied by the first data channel in the application.

Example 7

Embodiment 7 illustrates a schematic diagram that a first measurement value is used to determine whether a first time/frequency resource block belongs to a first candidate resource block set according to an embodiment of the present application, as shown in fig. 7.

In embodiment 7, the reference time-frequency resource group in this application includes the first time-frequency resource group, the first measurement value and the first coefficient are used to determine a first value, and a magnitude relationship between the first value and a target threshold is used to determine whether the first time-frequency resource block belongs to the first candidate resource block set.

As an embodiment, the first coefficient is predefined.

As an embodiment, the first coefficient is preconfigured.

For one embodiment, the first coefficient is configurable.

As an example, the first coefficient is equal to 1.

As an embodiment said first factor is not equal to 1.

As one embodiment, the first coefficient is a positive real number.

As one embodiment, the first coefficient is a positive integer.

As one embodiment, the first coefficient is a positive real number greater than 1.

As one embodiment, the first coefficient is a positive real number less than 1.

As one example, the unit of the first coefficient is Watt (Watt).

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

As an embodiment, the first signaling is used to indicate the first coefficient.

As an embodiment, the first signaling explicitly indicates the first coefficient.

As one embodiment, the first signaling implicitly indicates the first coefficient.

As an embodiment, the first signaling directly indicates the first coefficient.

As an embodiment, the first signaling indirectly indicates the first coefficient.

As one embodiment, the first node determines the first coefficient by itself.

As an embodiment, the determination of the first coefficient is implementation dependent for the first node.

As an embodiment, the first value is equal to a sum of the first measurement and the first coefficient.

As an embodiment, the first value is equal to a product of the first measurement and the first coefficient.

As an embodiment, the first value is equal to a positive real number obtained by dividing the first measurement value by the first coefficient.

As an embodiment, the first value is a function of the first measurement and the first coefficient.

Example 8

Embodiment 8 illustrates a schematic diagram in which a first measurement value according to another embodiment of the present application is used to determine whether a first time-frequency resource block belongs to a first candidate resource block set, as shown in fig. 8.

In embodiment 8, the reference time-frequency resource group in this application includes a time-frequency resource occupied by the first data channel in this application, and a size relationship between the first measurement value and the target threshold is used to determine whether the first time-frequency resource block belongs to the first candidate resource block set.

Example 9

Embodiment 9 illustrates a schematic diagram in which a magnitude relation between a given value and a target threshold is used to determine whether a first time-frequency resource block belongs to a first candidate resource block set according to an embodiment of the present application, as shown in fig. 9.

In embodiment 9, when the first measurement value is greater than the target threshold, it is determined that the first time-frequency resource block does not belong to the first candidate resource block set; when the first measurement value is smaller than the target threshold value, judging that the first time-frequency resource block belongs to the first candidate resource block set. The given value corresponds to the first measurement value in the present application; alternatively, the given numerical value corresponds to the first numerical value in the present application.

As an embodiment, when the first measurement value is equal to the target threshold, it is determined that the first time-frequency resource block does not belong to the first candidate resource block set.

As an embodiment, when the first measurement value is equal to the target threshold, it is determined that the first time-frequency resource block belongs to the first candidate resource block set.

As one embodiment, the target threshold is in units of watts.

As one embodiment, the target threshold is in dBm.

As an embodiment, the target threshold is related to a first set of priorities, the first set of priorities comprising a positive integer number of priorities (priorities).

As a sub-embodiment of the above embodiment, the first set of priorities comprises 2 priorities (priorities).

As a sub-embodiment of the above embodiment, the first set of priorities comprises only one Priority (Priority).

As a sub-embodiment of the above embodiment, the first signaling indicates a first priority, and the first set of priorities includes the first priority.

As a sub-embodiment of the above-mentioned embodiment, the first set of priorities comprises priorities of the first signals in the present application.

As a sub-embodiment of the above-mentioned embodiment, the first signaling indicates a first priority, and the first priority set includes the first priority and a priority of the first signal in this application.

As one embodiment, the first signaling indicates a first priority.

As a sub-embodiment of the above embodiment, the first Priority is a PPPP (ProSe Per-Packet Priority) value.

As a sub-embodiment of the above embodiment, the first priority is a PPPR (ProSe Per-Packet Reliability) value.

As a sub-embodiment of the above embodiment, the first priority is an index of a QoS class.

As a sub-embodiment of the above embodiment, the first priority is an index of 5QI (5G QoS Indicator, fifth generation quality of service Indicator).

As a sub-embodiment of the above embodiment, the first priority is an index of a PQI (PC5QoS Indicator, PC5 quality of service indication).

As a sub-embodiment of the above embodiment, the first priority is a non-negative integer.

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

As a sub-embodiment of the above embodiment, the larger the first priority is, the higher the priority is.

As a sub-embodiment of the above embodiment, a smaller first priority level indicates a higher priority.

As an example, the Priority of the first signal in the present application is a PPPP (ProSe Per-Packet Priority) value.

As an example, the priority of the first signal in the present application is a PPPR (ProSe Per-Packet Reliability) value.

As an embodiment, the priority of the first signal in this application is an index of a QoS class.

As an embodiment, the priority of the first signal in this application is an index of 5QI (5G QoS Indicator, fifth generation QoS Indicator).

As an example, the priority of the first signal in this application is an index of PQI (PC5QoS Indicator ).

As an embodiment, the priority of the first signal in this application is a non-negative integer.

As an embodiment, the priority of the first signal in this application is a positive integer.

As an example, a higher priority of the first signal in the present application indicates a higher priority.

As an example, a smaller priority of the first signal in the present application indicates a higher priority.

Example 10

Embodiment 10 illustrates a schematic diagram of the determination of a first coefficient according to an embodiment of the present application, as shown in fig. 10.

In embodiment 10, the first information is used to indicate the first coefficient.

As an embodiment, the first information explicitly indicates the first coefficient.

As one embodiment, the first information implicitly indicates the first coefficient.

As an embodiment, the first information directly indicates the first coefficient.

As one embodiment, the first information indirectly indicates the first coefficient.

As an embodiment, the first information is carried by the first signaling.

As an embodiment, the first information is carried by signaling other than the first signaling.

As an embodiment, the first information is carried by higher layer signaling.

As an embodiment, the first information is carried by physical layer signaling.

As an embodiment, the first information is transmitted through a DL-SCH (Downlink Shared Channel).

As an embodiment, the first information is transmitted through a PDSCH (Physical Downlink Shared Channel).

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

As an embodiment, the first Information includes one or more fields (fields) in RMSI (Remaining System Information).

As an embodiment, the first Information includes all or part of a Field (Field) in an IE (Information Element) in RRC (Radio Resource Control) layer Information.

As an embodiment, the first information is transmitted over a companion link (Sidelink).

As an embodiment, the first information is transmitted through a SL-SCH (Sidelink Shared Channel).

As an embodiment, the first information is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the first information is Broadcast (Broadcast).

As an embodiment, the first information is multicast (Groupcast).

As one embodiment, the first information is Unicast (Unicast).

As one embodiment, the first information is Cell Specific.

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

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

As an embodiment, the first information includes a Field (Field) of dci (downlink Control information) signaling.

As an embodiment, the first information is transmitted through a PSCCH (Physical Sidelink Control Channel).

As an embodiment, the first Information includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information) signaling.

As an embodiment, the first information is transmitted through a Radio Interface (Radio Interface) between the user equipments.

As an embodiment, the first information is transmitted through a Radio Interface (Radio Interface) used for communication between the first node and a sender of the first signaling in this application.

As an embodiment, the first information is transmitted over a wireless interface accompanying a link (Sidelink).

As an embodiment, the first information is transmitted through a radio interface (radio interface) between the user equipment and the base station equipment.

As an embodiment, the first information is transmitted through a Uu interface.

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

As an embodiment, the first information is transmitted by a wireless signal.

As an embodiment, the first information is transmitted from a base station to the first node.

As an embodiment, the first information is transmitted from a sender of the first signaling in the present application to the first node.

As one embodiment, the first information is passed from a higher layer of the first node to a physical layer of the first node.

As one embodiment, the first information is communicated internally within the first node.

Example 11

Embodiment 11 illustrates a schematic diagram of the determination of a first coefficient according to another embodiment of the present application, as shown in fig. 11.

In embodiment 11, the first signaling in the present application indicates a first index, the first index is used to determine a moving speed of a sender of the first signaling, and the moving speed of the sender of the first signaling is used to determine the first coefficient.

For one embodiment, the first index is a non-negative integer.

For one embodiment, the first index is a positive integer.

As one embodiment, the first index indicates a location of a sender of the first signaling.

As an embodiment, the first index indicates an area (Zone) where a sender of the first signaling is located.

As an embodiment, the first index is a Zone number (Zone ID).

As an embodiment, the first index is an area number (Zone ID) where a sender of the first signaling is located.

As an embodiment, the first index indicates an area (Zone) where the sender of the first signaling is located, and the moving speed of the sender of the first signaling is determined according to how fast the area where the sender of the first signaling is located changes.

As an embodiment, Y indices are used to determine the moving speed of the sender of the first signaling, the first index being one of the Y indices, Y being a positive integer greater than 1.

As a sub-embodiment of the foregoing embodiment, the moving speed of the sender of the first signaling is determined according to how fast the Y indices change.

As a sub-embodiment of the above embodiment, the Y indices are all non-negative integers.

As a sub-embodiment of the above embodiment, the Y indices are all positive integers.

As a sub-embodiment of the above embodiment, the Y indices each indicate a location of a sender of the first signaling.

As a sub-embodiment of the foregoing embodiment, the Y indexes each indicate an area (Zone) where a sender of the first signaling is located.

As a sub-embodiment of the foregoing embodiment, the Y indexes are all area numbers (Zone IDs) where the sender of the first signaling is located.

As an embodiment, the moving speed of the sender of the first signaling and the moving speed of the first node are used together to determine the first coefficient.

As an embodiment, the greater the moving speed of the sender of the first signaling, the greater the first coefficient.

As an embodiment, the greater the moving speed of the sender of the first signaling, the smaller the first coefficient.

As an embodiment, the moving speed of the sender of the first signaling and the moving speed of the first node are used to determine a relative moving speed of the sender of the first signaling with respect to the first node, which is used to determine the first coefficient.

As an embodiment, a relative movement speed of a sender of the first signaling with respect to the first node is used for determining the first coefficient.

As an embodiment, the greater the relative movement speed of the sender of the first signaling with respect to the first node, the greater the first coefficient.

As an embodiment, the greater the relative movement speed of the sender of the first signaling with respect to the first node, the smaller the first coefficient.

Example 12

Embodiment 12 illustrates a schematic diagram of the determination of a first coefficient according to another embodiment of the present application, as shown in fig. 12.

In embodiment 12, the first signaling in the present application indicates a first index, the first index is used to determine a moving direction of a sender of the first signaling, and the moving direction of the sender of the first signaling is used to determine the first coefficient.

As an embodiment, the moving direction of the sender of the first signaling and the moving direction of the first node are jointly used for determining the first coefficient.

As an embodiment, the moving direction of the sender of the first signaling is the same as the moving direction of the first node, and the first coefficient is greater than 0.

As an embodiment, the moving direction of the sender of the first signaling is opposite to the moving direction of the first node, and the first coefficient is smaller than 0.

As an embodiment, the moving direction of the sender of the first signaling is opposite to the moving direction of the first node, and the first coefficient is not greater than 0.

As an embodiment, the moving direction of the sender of the first signaling is the same as the moving direction of the first node, and the first coefficient is greater than 1.

As an embodiment, the moving direction of the sender of the first signaling is opposite to the moving direction of the first node, and the first coefficient is smaller than 1.

As an embodiment, the moving direction of the sender of the first signaling is opposite to the moving direction of the first node, and the first coefficient is not greater than 1.

As an embodiment, a distance between a sender of the first signaling and the first node decreases over time, the first coefficient being greater than 0.

As an embodiment, a distance between a sender of the first signaling and the first node increases over time, the first coefficient being less than 0.

As an embodiment, a distance between a sender of the first signaling and the first node increases over time, the first coefficient being no greater than 0.

As an embodiment, the distance between the sender of the first signaling and the first node decreases over time, the first factor being greater than 1.

As an embodiment, the distance between the sender of the first signaling and the first node increases over time, the first factor being less than 1.

As an embodiment, a distance between a sender of the first signaling and the first node increases over time, the first coefficient being no greater than 1.

Example 13

Embodiment 13 illustrates a schematic diagram of the determination of the first coefficient according to another embodiment of the present application, as shown in fig. 13.

In embodiment 13, the second measurement value in the present application and the third measurement value in the present application are used to determine the first coefficient.

As an embodiment, the first coefficient is related to a ratio of the third measurement value and the second measurement value.

As an embodiment, the first coefficient is equal to a positive real number obtained by dividing the third measurement value by the second measurement value.

As an embodiment, the first coefficient is equal to a quotient of the third measurement value divided by the second measurement value.

As an embodiment, the first coefficient is related to a difference between the third measurement and the second measurement.

As an embodiment, the first coefficient is equal to a difference of the third measurement minus the second measurement.

As an embodiment, Z1 first-class time-frequency resource groups respectively correspond to Z1 second-class time-frequency resource groups one by one, channel sensing is respectively performed in the Z1 first-class time-frequency resource groups and Z1 first-class measurement values are respectively obtained, channel sensing is respectively performed in the Z1 second-class time-frequency resource groups and Z1 second-class measurement values are respectively obtained, and the Z1 first-class measurement values and the Z1 second-class measurement values are used for determining the first coefficients; z1 is a positive integer greater than 1.

As a sub-embodiment of the above embodiment, Z1 signalings are monitored in the third time window; the Z1 first-class time-frequency resource groups respectively comprise time-frequency resources occupied by the Z1 signaling, the Z1 signaling is respectively used for indicating Z1 data channels, and the Z1 second-class time-frequency resource groups respectively comprise time-frequency resources occupied by the Z1 data channels; the second signaling is any one of the Z1 signaling, the second time-frequency resource group is a first-class time-frequency resource group including the time-frequency resources occupied by the second signaling in the Z1 first-class time-frequency resource groups, the second data channel is a data channel indicated by the second signaling in the Z1 data channels, and the third time-frequency resource group is a second-class time-frequency resource group including the time-frequency resources occupied by the second data channel in the Z1 second-class time-frequency resource groups.

As a sub-embodiment of the above embodiment, Z1 ratios are the quotient of the Z1 first type of measurement value divided by the corresponding second type of measurement value, respectively, and the first coefficient is related to the Z1 ratios.

As a sub-embodiment of the above embodiment, the Z1 ratios are the quotient of the Z1 first-type measurement values divided by the corresponding second-type measurement values, respectively, and the first coefficient is equal to the average of the Z1 ratios.

As a sub-embodiment of the above embodiment, Z1 ratios are positive real numbers obtained by dividing the Z1 first-type measurement values by the corresponding second-type measurement values, respectively, and the first coefficients are related to the Z1 ratios.

As a sub-embodiment of the above embodiment, Z1 ratios are positive real numbers obtained by dividing the Z1 first-type measurement values by the corresponding second-type measurement values, respectively, and the first coefficient is equal to an average value of the Z1 ratios.

As a sub-embodiment of the above embodiment, the Z1 differences are the differences of the Z1 first type measurements minus the corresponding second type measurements, respectively, and the first coefficient is related to the Z1 differences.

As a sub-embodiment of the above embodiment, the Z1 differences are the differences of the Z1 first type of measurement values minus the corresponding second type of measurement values, respectively, and the first coefficient is equal to the average of the Z1 differences.

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus in a first node device, as shown in fig. 14. In fig. 14, a first node device processing apparatus 1200 includes a first transmitter 1201, a first receiver 1202, and a first processor 1203.

For one embodiment, the first node apparatus 1200 is a user equipment.

As an embodiment, the first node apparatus 1200 is a relay node.

For one embodiment, the first node apparatus 1200 is a base station.

As an embodiment, the first node apparatus 1200 is a vehicle-mounted communication apparatus.

For one embodiment, the first node apparatus 1200 is a user equipment supporting V2X communication.

As an embodiment, the first node apparatus 1200 is a relay node supporting V2X communication.

The first transmitter 1201 includes, for one embodiment, at least one of the antenna 452, the transmitter 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.

The first transmitter 1201 includes, for one embodiment, at least the first five of the antenna 452, the transmitter 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.

The first transmitter 1201 includes, for one embodiment, at least the first four of the antenna 452, the transmitter 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.

The first transmitter 1201 includes, for one embodiment, at least three of the antenna 452, the transmitter 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.

The first transmitter 1201 includes, for one embodiment, at least two of the antenna 452, the transmitter 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.

For one embodiment, the first receiver 1202 may include 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, and the data source 467 of fig. 4.

For one embodiment, the first receiver 1202 may include at least the first five of the antenna 452, the 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 one embodiment, the first receiver 1202 may include at least the first four of the antenna 452, the 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 one embodiment, the first receiver 1202 includes at least the first three of the antenna 452, the 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 one embodiment, the first receiver 1202 may include at least two of the antenna 452, the 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.

The first processor 1203 includes, for one embodiment, at least one of the antenna 452, the transmitter 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.

The first processor 1203 includes, as one example, at least one of the multiple antenna transmitter processor 457, the transmitter processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

For one embodiment, the first processor 1203 includes at least the first five of the antenna 452, the transmitter 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.

For one embodiment, the first processor 1203 includes at least the first four of the antenna 452, the transmitter 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.

The first processor 1203 includes, as one example, at least three of the antenna 452, the transmitter 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.

The first processor 1203 includes, for one embodiment, at least two of the antenna 452, the transmitter 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.

A first receiver 1202 that monitors a first signaling in a first set of time-frequency resources; performing channel sensing in a reference time-frequency resource group and obtaining a first measurement value;

the first processor 1203, determining whether the first time-frequency resource block belongs to a first candidate resource block set;

in embodiment 14, the first signalling is used to determine the first block of time-frequency resources; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first signaling is used for indicating configuration information of a first data channel, and whether a time domain resource occupied by the first data channel belongs to a first time window is used for determining the reference time-frequency resource group, wherein the first time window comprises the time domain resource occupied by the first time-frequency resource group.

As an embodiment, the first node device further includes:

a first transmitter 1201 selecting M candidate resource blocks in the first set of candidate resource blocks; transmitting a first signal in the M candidate resource blocks;

As an embodiment, when the time domain resources occupied by the first data channel are located outside the first time window, the reference time-frequency resource group includes the first time-frequency resource group; and when the time domain resources occupied by the first data channel belong to the first time window, the reference time-frequency resource group comprises the time-frequency resources occupied by the first data channel.

As an embodiment, the reference group of time-frequency resources includes the first group of time-frequency resources, the first measurement value and a first coefficient are used to determine a first value, and a magnitude relation between the first value and a target threshold is used to determine whether the first group of time-frequency resources belongs to the first candidate resource block set.

For one embodiment, the first receiver 1202 also receives first information; wherein the first information is used to indicate the first coefficient.

As an embodiment, the first signaling indicates a first index, the first index is used to determine a moving speed of a sender of the first signaling, the moving speed of the sender of the first signaling is used to determine the first coefficient.

For an embodiment, the first receiver 1202 further monitors for a second signaling in a third time window; executing channel perception in a second time-frequency resource group and obtaining a second measured value; executing channel perception in a third time-frequency resource group and obtaining a third measured value; the third time window comprises time domain resources occupied by the second time-frequency resource group and time domain resources occupied by the third time-frequency resource group; the second time-frequency resource group comprises time-frequency resources occupied by the second signaling, the second signaling is used for indicating configuration information of a second data channel, and the third time-frequency resource group comprises time-frequency resources occupied by the second data channel; the second and third measurements are used to determine the first coefficient.

Example 15

Embodiment 15 is a block diagram illustrating a processing apparatus in a second node device, as shown in fig. 15. In fig. 15, the second node device processing apparatus 1300 includes a second receiver 1301.

For one embodiment, the second node apparatus 1300 is a user equipment.

For one embodiment, the second node apparatus 1300 is a base station.

As an embodiment, the second node apparatus 1300 is a relay node.

As an embodiment, the second node apparatus 1300 is a user equipment supporting V2X communication.

As an embodiment, the second node apparatus 1300 is a base station apparatus supporting V2X communication.

As an embodiment, the second node apparatus 1300 is a relay node supporting V2X communication.

For one embodiment, the second receiver 1301 includes at least one of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4.

For one embodiment, the second receiver 1301 includes at least the first five of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the second receiver 1301 includes at least the first four of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the second receiver 1301 includes at least the first three of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the second receiver 1301 includes at least two of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the second receiver 1301 includes at least one of the antenna 420, the receiver 418, the multiple antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

A second receiver 1301, which receives the first signal in M candidate resource blocks;

in embodiment 15, the first set of candidate resource blocks includes M0 candidate resource blocks, any one of the M candidate resource blocks is one of the M0 candidate resource blocks, M is a positive integer, and M0 is a positive integer no less than the M; a sender of the first signal monitors a first signaling in a first time-frequency resource group, the first signaling is used for determining a first time-frequency resource block, the sender of the first signal performs channel sensing in a reference time-frequency resource group and obtains a first measurement value, and the first measurement value is used for judging whether the first time-frequency resource block belongs to the first candidate resource block set; the first time-frequency resource group comprises time-frequency resources occupied by the first signaling, the first signaling is used for indicating configuration information of a first data channel, whether time-domain resources occupied by the first data channel belong to a first time window or not is used for determining the reference time-frequency resource group, and the first time window comprises the time-domain resources occupied by the first time-frequency resource group.

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

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

Claims

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

2. The first node apparatus of claim 1, comprising:

a first transmitter that selects M candidate resource blocks in the first set of candidate resource blocks; transmitting a first signal in the M candidate resource blocks;

3. The first node device of claim 1 or 2, wherein the reference group of time-frequency resources comprises the first group of time-frequency resources when the time-domain resources occupied by the first data channel are outside the first time window; and when the time domain resources occupied by the first data channel belong to the first time window, the reference time-frequency resource group comprises the time-frequency resources occupied by the first data channel.

4. The first node apparatus of any of claims 1-3, wherein the reference group of time-frequency resources comprises the first group of time-frequency resources, wherein the first measurement and a first coefficient are used to determine a first value, and wherein a magnitude relationship between the first value and a target threshold is used to determine whether the first group of time-frequency resources belongs to the first set of candidate resource blocks.

5. The first node device of claim 4, wherein the first receiver further receives first information; wherein the first information is used to indicate the first coefficient.

6. The first node device of claim 4, wherein the first signaling indicates a first index, wherein the first index is used to determine a moving speed of a sender of the first signaling, and wherein the moving speed of the sender of the first signaling is used to determine the first coefficient.

7. The first node device of claim 4, wherein the first receiver further monitors for second signaling in a third time window; executing channel perception in a second time-frequency resource group and obtaining a second measured value; executing channel perception in a third time-frequency resource group and obtaining a third measured value; the third time window comprises time domain resources occupied by the second time-frequency resource group and time domain resources occupied by the third time-frequency resource group; the second time-frequency resource group comprises time-frequency resources occupied by the second signaling, the second signaling is used for indicating configuration information of a second data channel, and the third time-frequency resource group comprises time-frequency resources occupied by the second data channel; the second and third measurements are used to determine the first coefficient.

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

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

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

receiving a first signal in M candidate resource blocks;