Sidelink sensing information sharing

Abstract

Disclosed are methods, apparatuses, and systems for transferring at least one of resource reservation information or channel sensing information in sidelink communications, including receiving, from at least one first user equipment (UE), at least one of resource reservation information or channel sensing information acquired by the at least one first UE, storing the at least one of the resource reservation information or channel sensing information, and transmitting the received at least one of the resource reservation information or channel sensing information to a second UE.

Description

[Technical Field]

[0001] Cross-reference of related applications This application claims the interests of U.S. Provisional Application No. 63 / 396,857, filed on 10 August 2022 and titled "SL SENSING INFORMATION SHARING," which is incorporated herein by reference in its entirety.

[0002] The apparatus and methods relating to this disclosure generally relate to communications, and more specifically to methods, systems, and devices for sharing sidelink sensing information in sidelink communications. [Background technology]

[0003] Sidelink communication technology enables direct communication between two devices. When a first device in a first sidelink communication shares radio resources with a second device in a second sidelink communication, the first and second devices select which radio resources to use. To select radio resources, the first or second device obtains resource reservation information and / or channel sensing information. In some cases, direct exchange of such information between two devices may not be possible. For example, if the first device has modules for both the first and second sidelink communications and can decode resource information related to the second sidelink communication, but the second device only has modules for the second sidelink communication and therefore cannot decode resource information related to the first sidelink communication, it can lead to inefficient and unfair resource allocation. Improved systems and methods for sharing resource reservation information and / or channel sensing information are desired.

[0004] The resource selection procedure for 5G New Radio (NR) Vehicle-to-Everything (V2X) PC5 Mode 2, as defined in the 3rd Generation Partnership Project (3GPP) Release 16 / 17, is specified in 3GPP TS38.213, TS38.214, and TS38.321. For resource selection, user equipment (UE) performs channel sensing within a sensing window and collects resource reservation information from other UEs based on the decoding of sidelink control information (SCI) to identify candidate resources within the selection window T (T=[T1,T2]). First, the UE excludes several time slots of unmonitored resources within the sensing window that it cannot detect due to its own transmission (i.e., half-duplex constraint) from the selection window. Next, the UE further excludes resources reserved by other UEs from the selection window if the corresponding sidelink-reference signal received power (SL-RSRP) exceeds a (pre-)set SL-RSRP exclusion threshold. After resource exclusion, the number of candidate resources must be at least X% of the total number of resources in the selection window. Otherwise, the UE increases the SL-RSRP exclusion threshold by 3dB increments until it obtains at least X% of resources. X is (pre-set) from {20, 35, 50}%. Finally, the UE randomly selects a resource from the candidate resources in the selection window. The selected frequency resource may be used multiple times at fixed time intervals for subsequent transmissions (i.e., semi-persistent scheduling (SPS)) or only once (i.e., one-shot transmission (OST)). The UE may also retransmit packets multiple times with or without feedback from the receiving UE to improve reliability (i.e., hybrid automatic retransmission request (HARQ)). (Tomatic repeat request) (Resend).

[0005] To perform sensing and obtain information for receiving packets from other UEs, a UE first decodes the SCI. Rel-16 has a first-stage SCI (SCI format 1-A) and a second-stage SCI (SCI format 2-A or 2-B) as defined in 3GPP TS38.212. The first-stage SCI carries information about resource allocation, the modulation and coding scheme (MCS) for the physical sidelink shared channel (PSSCH), the demodulation reference signal (DMRS) pattern, and the second-stage SCI format, along with resource reservation information for future transmissions. The second-stage SCI carries information about HARQ procedure control, source / destination IDs, distance-based groupcast information (UE zone identification information (ID) and communication range requirements), etc. When each UE performs resource (re)selection, it avoids using time / frequency resources reserved by other UEs based on the resource reservations contained in the first-stage SCI.

[0006] In Rel-17 5G NR-V2X PC5 mode 2, inter-UE coordination (IUC) is introduced, where UE-A transmits coordination information about resources to UE-B, which then uses this information for its own resource (re)selection. The following inter-UE coordination methods are supported. · IUC Method 1: UE-A can provide UE-B with a list of resources that are preferable to include in UE-B's (re)selected resources, or resources that are preferable to exclude. Given the resources to include, UE-B may rely solely on those resources, at least if it does not support sensing / resource exclusion, or it may combine them with resources identified by its own sensing procedure before making a final selection. The list from UE-A to UE-B is a medium access control (MAC) control element (CE). It is transmitted in the element and / or in the second stage SCI. IUC scheme 2: UE-A can provide UE-B with an instruction that a resource reserved for UE-B's transmission (which may or may not be destined for UE-A) will or may be in conflict with a transmission from another UE. UE-B then re-selects and replaces the resource. The presentation from UE-A to UE-B is transmitted via a physical sidelink feedback channel (PSFCH). [Overview of the project]

[0007] According to one embodiment of the present disclosure, a method is provided for transferring at least one of resource reservation information or channel sensing information in sidelink communication. The method includes receiving at least one of resource reservation information or channel sensing information acquired by at least one first user equipment (UE) from at least one first UE; storing the at least one of the resource reservation information or channel sensing information; and transmitting the received at least one of the resource reservation information or channel sensing information to a second UE.

[0008] According to one embodiment of the present disclosure, a method is provided for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication. The method involves performing a sidelink channel sensing operation to obtain at least one of the resource reservation information or channel sensing information associated with the location information of a user device (UE), and providing the location information and at least one of the resource reservation information or channel sensing information in sidelink communication. This includes reporting to the device, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to other UEs.

[0009] According to one embodiment of this disclosure, resource reservation information and ha chi A method is provided for obtaining at least one of the channel sensing information. The method includes receiving from the device at least one of the resource reservation information or the channel sensing information that is not applicable to the device.

[0010] According to one embodiment of the present disclosure, a device is provided for transferring at least one of resource reservation information or channel sensing information in sidelink communication. The device includes a memory for storing instructions, and a processor that executes the instructions stored in the memory to receive at least one of the resource reservation information or channel sensing information obtained by at least one first user device (UE) from at least one first UE, to store the at least one of the resource reservation information or channel sensing information, and to transmit the received at least one of the resource reservation information or channel sensing information to a second UE.

[0011] According to one embodiment of the present disclosure, a UE is provided that provides location information and at least one of resource reservation information or channel sensing information in sidelink communication. The UE includes a memory for storing instructions and a processor that performs the following: execute the instructions stored in the memory to perform a sidelink channel sensing operation to obtain at least one of resource reservation information or channel sensing information associated with the location information of the UE; and report the location information and at least one of the resource reservation information or channel sensing information to a device in sidelink communication so that the device can provide the location information and at least one of the resource reservation information or channel sensing information to another UE.

[0012] According to one embodiment of the present disclosure, a UE is provided that acquires at least one of resource reservation information or channel sensing information in sidelink communication. The UE includes a memory for storing instructions and a processor that executes the instructions stored in the memory to receive at least one of resource reservation information or channel sensing information from a device. The at least one of resource reservation information or channel sensing information applies to other UEs but not to the device.

[0013] According to one embodiment of the present disclosure, a non-temporary computer-readable medium is provided for storing instructions that can be executed by one or more processors of devices in a communication network in order to carry out a method. The method includes receiving from at least one first user device (UE) at least one of resource reservation information or channel sensing information obtained by the at least one first UE; storing the at least one of the resource reservation information or channel sensing information; and transmitting the received at least one of the resource reservation information or channel sensing information to a second UE.

[0014] According to one embodiment of the present disclosure, there is provided another non - transient computer - readable medium storing instructions executable by one or more processors of a UE in a communication network to execute a method. The method includes performing a sidelink channel sensing operation to obtain at least one of resource reservation information or channel sensing information associated with the location information of the UE, and reporting the location information and at least one of the resource reservation information or the channel sensing information to a device in sidelink communication, enabling the device to provide the location information and the at least one of the resource reservation information or the channel sensing information to other UEs.

[0015] According to one embodiment of the present disclosure, there is provided another non - transient computer - readable medium storing instructions executable by one or more processors of a UE in a communication network to execute a method. The method includes receiving, from a device, at least one of resource reservation information or ha chi channel sensing information that is not applicable to the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] [Figure 1] It is a flowchart showing a method for resource selection in sidelink communication according to an embodiment of the present disclosure. [Figure 2] It is a schematic diagram showing a resource candidate determination procedure according to the method of FIG. 1 according to an embodiment of the present disclosure. [Figure 3] It is a schematic diagram showing a sidelink packet structure used in the method of FIG. 1 according to an embodiment of the present disclosure. [Figure 4] It is a flowchart showing a method for resource selection in sidelink communication according to an embodiment of the present disclosure. [Figure 5A] It is a schematic diagram showing a resource candidate determination procedure according to the method of FIG. 4 according to an embodiment of the present disclosure. [Figure 5B]This table shows the correspondence between the subcarrier interval and the parameters of the sensing window and selection window (TSL proc,0 and TSL proc,1) in the method shown in Figure 4 according to one embodiment of this disclosure. [Figure 6A] This is a schematic diagram showing a sidelink packet structure used in the method of Figure 4 according to one embodiment of the present disclosure. [Figure 6B] This is a schematic diagram showing another sidelink packet structure used in the method of Figure 4, according to one embodiment of the present disclosure. [Figure 7] This is a schematic diagram illustrating the dynamic coexistence of a first sidelink communication and a second sidelink communication on the same channel, according to one embodiment of the present disclosure. [Figure 8] This is a schematic diagram showing a device type for dynamic same-channel coexistence of a first sidelink communication and a second sidelink communication according to one embodiment of the present disclosure. [Figure 9A] This is a schematic diagram showing a semi-static resource pool configuration in time-domain multiplexing (TDM) for the coexistence of a first sidelink communication and a second sidelink communication on the same channel, according to one embodiment of the present disclosure. [Figure 9B] This is a schematic diagram showing a semi-static resource pool configuration in frequency domain multiplexing (FDM) for the coexistence of a first sidelink communication and a second sidelink communication on the same channel, according to one embodiment of the present disclosure. [Figure 10] This flowchart shows a method for transferring at least one of resource reservation information or channel sensing information in sidelink communication according to one embodiment of the present disclosure. [Figure 11] This is a schematic diagram illustrating a method for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication according to one embodiment of the present disclosure. [Figure 12]This is a schematic diagram illustrating a method for obtaining at least one of resource reservation information or channel sensing information from a device in a communication network, according to one embodiment of the present disclosure. [Figure 13] This is a block diagram of a device according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0017] The following description provides detailed references to exemplary embodiments, examples of which are shown in the accompanying drawings. The following description refers to the accompanying drawings, and unless otherwise noted, the same numbers in different drawings represent identical or similar elements. The implementations shown in the following description of exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of systems, apparatus, and methods consistent with the aspects related to the present disclosure as described in the accompanying claims.

[0018] Figure 1 is a flowchart of a resource selection method 100 (referred to as “the First Method” in this disclosure) in sidelink communication according to one embodiment of this disclosure. Figure 2 is a schematic diagram showing a resource candidate determination procedure according to the First Method, according to one embodiment of this disclosure. Method 100 may be performed by a UE in sidelink communication. For example, Method 100 may be performed by a vehicle in V2X communication. Method 100 may be performed in a mode (referred to as “the First Mode” in this disclosure) that uses discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) for the sidelink in the physical (PHY) layer. An example of the First Mode is the Third Generation Partnership Project (3GPP) Release 14 / 15 Long-Term Evolution (LTE) V2X PC5 Mode 4.

[0019] As shown in Figure 2, in the first mode, the time-frequency radio resource is divided into time-domain subframes and frequency-domain subchannels. In one embodiment, the first mode may support only a 15 kHz subcarrier spacing (SCS). Each subframe may be 1 ms long and may contain 14 DFT-s-OFDM symbols. Each subchannel may consist of multiple consecutive physical resource blocks (PRBs). Each PRB occupies 180 kHz and consists of 12 subcarriers with a 15 kHz SCS. The size of the subchannel (i.e., the number of PRBs per subchannel) may be configurable or preconfigurable. To address the high Doppler caused by high relative speeds in vehicle scenarios, the density of demodulated reference signals (DMRS) used for frequency offset correction and channel estimation may be set to 4 per subframe. Each UE may broadcast data (e.g., transport blocks (TBs)) on a physical sidelink shared channel (PSSCH) and broadcast sidelink control information (SCI) on a physical sidelink control channel (PSCCH). A PSCCH may occupy two consecutive PRBs. The number of PRBs for a PSSCH may be configurable or preconfigurable. The SCI format may include information necessary for decoding the corresponding TBs in the PSSCH and for facilitating the UE's autonomous resource selection. As shown in Figure 2, the resource reservation interval can be set to one of the allowed values ​​(e.g., 20, 50, 100, 200, 300...1000 ms). PSCCHs and their corresponding PSSCHs may be transmitted within the same subframe, either on adjacent or non-adjacent PRBs in the frequency domain.

[0020] Referring to Figure 1, method 100 includes step 102 of performing channel sensing (e.g., background sensing or any other type of full or partial sensing). For example, as shown in Figure 2, for resource selection, the UE may perform channel sensing within a sensing window (e.g., 1000 ms) to collect resource reservation information from other UEs. The sensing window can be of any length depending on the implementation of the UE.

[0021] Returning to Figure 1, Method 100 includes step 104 of collecting resource reservation information and corresponding sidelink reference signal received power (SL-RSRP) of other UEs and measuring a Sidelink Received Signal Strength Indicator (S-RSSI). For example, a UE may collect resource reservation information and corresponding SL-RSRP of other UEs. Alternatively, a UE may measure the S-RSSI using the received sidelink signal. The UE may decode the received SCI contained in the received sidelink signal to identify candidate resources within a selection window T (for example, T=[T1,T2], where T1≦4ms and T2≦100ms), as shown in Figure 2. The selection of values ​​for T1 and T2 varies depending on the UE implementation.

[0022] Method 100 includes step 106 of determining candidate resources based on the average S-RSSI ranking, excluding occupied, reserved, and / or unmonitored resources. For example, as shown in Figure 2, when resource selection or re-selection is triggered, the UE may exclude several subframes from the selection window. The excluded subframes may be resources that are not monitored in the sensing window. The UE may be unable to detect these resources, for example, due to its own transmission (e.g., half-duplex constraints). If the corresponding SL-RSRP exceeds the configured or pre-configured SL-RSRP exclusion threshold, the UE may further exclude resources occupied or reserved by other UEs from the selection window. After resource exclusion, the number of candidate resources may be at least 20% of the total number of resources in the selection window. Otherwise, the UE may increase the SL-RSRP exclusion threshold, for example, by 3 dB increments, until the number of candidate resources reaches at least 20% of all resources. The UE may further calculate the corresponding S-RSSI for each subchannel resource as a linear average of the S-RSSI of the monitored resources at regular intervals (for example, if the resource reservation interval is 100ms or more, the averaging interval is 100ms). The UE may determine the best resources from all resources in the selection window, for example, the 20% with the lowest average S-RSSI, as candidate resources. The UE may use the 20% of resources with the lowest average S-RSSI as candidate resources based on S-RSSI ranking.

[0023] Method 100 includes a step 108 of selecting a resource from among candidate resources. The selection of a resource from among candidate resources may be random. For example, as shown in Figure 2, the UE may uniformly and randomly select a single subframe resource from among candidate single subframe resources. The selected frequency resource may be used multiple times at fixed time intervals for subsequent transmissions (this scheme is referred to in this disclosure as "semi-persistent scheduling (SPS)") or it may be used only once (this scheme is referred to in this disclosure as "one-shot transmission (OST)").

[0024] Method 100 includes step 110 of transmitting a packet based on SPS or OST. The packet can be an initial packet or a retransmission packet. For example, a UE may transmit an initial packet using selected resources. As another example, a UE may retransmit a packet up to once without feedback from a receiving UE to improve the reliability of the transmission (this is referred to in this disclosure as a “blind hybrid automatic retransmission request (HARQ) retransmission”). After such transmission, the method may restart from step 102.

[0025] Figure 3 is a schematic diagram showing a packet structure 300 for sidelink communication used in the method of Figure 1, according to one embodiment of the present disclosure. The packet structure 300 may be used by the UE to send or receive packets in sidelink communication. The term "packet" can refer to a signal, data, one or more control signals, one or more data signals, one or more frames, one or more subframes, one or more slots, etc. For example, packet structure 300 may be used to transmit signals or data by a vehicle in V2X communication. Packet structure 300 may be used in a first mode. As shown in Figure 3, in the time domain, packet structure 300 includes subframe 302 containing 14 DFT-s-OFDM symbols, of which four symbols are used for DMRS, one symbol is used for the guard period, and the remaining symbols are used for PSCCH or PSSCH. The first symbol of subframe 302 may be used for automatic gain control (AGC). In the frequency domain, packet structure 300 includes subchannel 304 consisting of n PRBs and subchannel 306 consisting of two PRBs.

[0026] Figure 4 is a flowchart showing a resource selection method 400 in sidelink communication (referred to as the "second method" in this disclosure), Figure 5A is a schematic diagram showing the resource candidate determination procedure related to the second method, and Figure 5B shows the SCS and the parameters of the sensing window and selection window (T) related to the method in Figure 4. SL proc,0 and T SL proc,1 This is a table showing the correspondence between ) and , all of which are embodiments of the present disclosure. Method 400 may be performed by a UE in sidelink communication. For example, Method 400 may be performed by a vehicle in V2X communication. Method 400 may be performed in a mode (referred to in the present disclosure as the “second mode”) that uses orthogonal frequency division multiplexing (OFDM) in the PHY layer of sidelink communication. An example of the second mode is 3GPP Release 16 / 17 5G NR-V2X PC5 Mode 2.

[0027] As shown in Fig. 5A, in the second mode, the time-frequency radio resource is divided into time-domain slots and frequency-domain sub-channels. In one embodiment, the second mode may support a subcarrier spacing (SCS) of 15·2 μ kHz, where μ is the OFDM numerology μ ∈ {0, 1, 2, 3, 4}. 6GHz For frequencies band in the range of, SCSs of 15, 30, and 60 kHz (i.e., μ ∈ {0, 1, 2}) may be supported, and for frequencies band above 6 GHz, SCSs of 60, 120, and 240 kHz (i.e., μ ∈ {2, 3, 4}) may be supported. Each slot is 1 / 2 μ ms long and consists of 14 OFDM symbols. Each sub-channel may be composed of a plurality of consecutive physical resource blocks (PRBs), and each PRB occupies 180·2 μ kHz and is composed of 12 sub-carriers with a subcarrier spacing of 15·2 μ kHz. The size of the sub-channel (i.e., the number of PRBs per sub-channel) is configurable or pre-configurable. To support multiple SCSs and different Doppler spreads, multiple DMRS density options (2 to 4 DMRS symbols per slot) are supported. Each UE may transmit the first-stage SCI on the physical sidelink control channel (PSCCH) and transmit data (TB) and the second-stage SCI on the physical sidelink shared channel (PSSCH). H ARQ feedback (e.g., acknowledgement (ACK) / negative acknowledgement (NACK), or NACK only) may be transmitted on the physical sidelink feedback channel (PSFCH).

[0028] Fig. 5B shows the correspondence between the SCS and the parameters of the sensing window and the selection window (T SL proc,0 and T SL proc,1 ). For example, when the SCS is 15 kHz, as shown in the second and third columns of Fig. 5B, T SL proc,0 corresponds to 1 ms, and TSL proc,1 This corresponds to 3ms. As another example, if the SCS is 30kHz, T SL proc,0 It supports 0.5ms, T SL proc,1 This corresponds to 2.5ms.

[0029] Returning to Figure 4, method 400 includes step 402 of performing channel sensing (e.g., background sensing or any other type of full or partial sensing). For example, as shown in Figure 5A, the UE is sensing window T sensing (For example, T sensing =[T0,T SL proc,0 ], where T0 = 100 or 1100 ms, T SL proc,0 Channel sensing (e.g., background sensing or any other type of full or partial sensing) may be performed within the given UE (as shown in Figure 5B) to collect resource reservation information from other UEs. Channel sensing with a 100ms sensing window may be for aperiodic traffic, and channel sensing with an 1100ms sensing window may be for periodic traffic.

[0030] Method 400 includes step 404 of collecting resource reservation information from other UEs and measuring the corresponding SL-RSRP. For example, as shown in Figure 5A, the UE may perform channel sensing within a sensing window and collect resource reservation information from other UEs based on the decoding of the SCI to identify candidate resources. In one embodiment, in order to perform sensing and obtain information for receiving packets from other UEs, the UE first decodes the SCI. Decoding the SCI may involve two stages: a first-stage SCI (SCI format 1-A) and a second-stage SCI (SCI format 2-A or 2-B) as defined by 3GPP. The first-stage SCI may carry resource reservation information for future transmissions, information about resource allocation, the modulation and coding scheme (MCS) of the PSSCH, the DMRS pattern, and the second-stage SCI format, etc. The second-stage SCI may carry control information for the HARQ procedure, source / destination IDs, distance-based groupcast information (e.g., the UE's zone ID and communication range requirements), etc. When each UE performs resource selection or re-selection, it can avoid using time and / or frequency resources reserved by other UEs based on resource reservations included in the first stage SCI.

[0031] Method 400 includes step 406 of determining candidate resources by excluding occupied, reserved, and / or unmonitored resources. For example, UE may exclude unmonitored slots from selection window T (e.g., T=[T1,T2], where 0≦T1≦T SL proc,1 ms, T SL proc,1(This is given in Figure 5B, where T2 is set based on the remaining packet delay slot). The UE may not be able to detect unmonitored slots in the sensing window, for example, due to its own transmission (e.g., half-duplex constraint). The UE may further exclude resources occupied or reserved by other UEs from the selection window if the corresponding SL-RSRP exceeds the configured or preconfigured SL-RSRP exclusion threshold. After resource exclusion, the number of candidate resources may be at least X% of the total number of resources in the selection window. Otherwise, the UE may increase the SL-RSRP exclusion threshold by, for example, 3dB increments until at least X% of resources are acquired. X may be configured or preconfigured from {20, 35, 50}%.

[0032] Method 400 includes a step 408 of selecting a resource from among candidate resources. The selection may be random. For example, as shown in Figure 5A, the UE may randomly select a resource from among the candidate resources in the selection window. The selected frequency resource can be used multiple times at fixed time intervals for subsequent transmissions (SPS) or used only once (OST).

[0033] Method 400 includes step 410 of checking resource availability based on reassessment and / or preemption of selected resources. This may be performed on delayed packets (e.g., aperiodic packets) after selection and before packet transmission.

[0034] Method 400 includes a step 412 for determining whether resource reselection is necessary. If it is determined that resource reselection is necessary, the method may be repeated from step 404. On the other hand, if it is determined that resource reselection is not necessary, the method may proceed to step 414 for transmitting a packet based on SPS or OST. The packet may be the initial packet or a retransmitted packet. The UE may also retransmit the packet multiple times, with or without feedback from the receiving UE, in order to improve the reliability of the transmission (e.g., HARQ retransmission).

[0035] Figure 6A is a schematic diagram showing a packet structure 610 for sidelink communication used in the method of Figure 4 according to one embodiment of the present disclosure, and Figure 6B is a schematic diagram showing a packet structure 620 for another sidelink communication used in the method of Figure 4 according to one embodiment of the present disclosure. Packet structure 610 or 620 may be used by a UE to transmit or receive packets in sidelink communication. For example, packet structure 610 or 620 may be used by a vehicle in V2X communication. Packet structure 610 or 620 may be used in a second mode. Referring to Figure 6A, in the time domain, packet structure 610 includes a slot 612 containing 14 OFDM symbols for PSCCH, PSSCH, DMRS, guard period, and AGC. In the frequency domain, packet structure 610 may include subchannels, each containing one or more PRBs. Referring to Figure 6B, in the time domain, packet structure 620 includes a slot 622 containing 14 OFDM symbols for PSCCH, PSSCH, DMRS, guard period, AGC, and PSFCH. In the frequency domain, packet structure 620 may include subchannels, each containing one or more PRBs. Packet structures 610 or 620 can be configured or pre-configured in different ways, for example, by including different numbers of symbols for PSCCH, PSSCH, or DMRS.

[0036] The embodiments described above relate to sidelink channel sensing and resource allocation in a single radio access technology (RAT). One embodiment of the present disclosure relates to sidelink channel sensing and resource allocation for multi-RAT same-channel coexistence of different sidelink technologies. In these embodiments, for example, any combination of LTE sidelinks, NR sidelinks, and future-generation sidelinks may coexist and share the same channel. The future-generation technologies described in the present disclosure may be sixth-generation, seventh-generation, or any future-developed technology. One or more embodiments of the present disclosure support channel sensing for resource allocation in multi-RAT sidelink deployments.

[0037] Figure 7 is a schematic diagram illustrating the dynamic same-channel coexistence of a first sidelink (SL) communication and a second sidelink (SL) communication according to one embodiment of the present disclosure. In one embodiment, the first sidelink communication is an NR sidelink communication, and the second sidelink communication is an LTE sidelink communication. In this embodiment, for example, the LTE sidelink communication uses a 15 kHz SCS, and the NR sidelink communication uses a higher SCS (e.g., 30, 60 kHz). As shown in Figure 7, the first sidelink communication and the second sidelink communication share time and / or frequency resources.

[0038] Figure 8 is a schematic diagram showing device types for dynamic same-channel coexistence of first sidelink (SL) communication and second sidelink (SL) communication according to one embodiment of the present disclosure. Referring to Figure 8, at least three types of devices (Type A, Type B, and Type C) are conceivable in the present disclosure. Type A devices are first sidelink The device includes a trust module and a module for a second sidelink communication. A Type B device includes only the module for the first sidelink communication. A Type C device includes only the module for the second sidelink communication. For example, in one embodiment, a Type A device includes both an LTE SL module and an NR SL module, a Type B device includes only an NR SL module, and a Type C device includes only an LTE SL module. Since the SCI formats of different radio technologies are not identical, channel sensing problems arise in multi-RAT same-channel coexistence scenarios. For example, a device with only an LTE module (e.g., a Type C device) cannot decode future generations of SCI formats (e.g., NR SCI format) and therefore cannot perform corresponding radio measurements.

[0039] Figure 9A is a schematic diagram showing a semi-static resource pool configuration in time-domain multiplexing (TDM) for the coexistence of a first sidelink communication and a second sidelink communication on the same channel, according to one embodiment of the present disclosure, and Figure 9B is a schematic diagram showing a semi-static resource pool configuration in frequency-domain multiplexing (FDM) for the coexistence of a first sidelink communication and a second sidelink communication on the same channel, according to one embodiment of the present disclosure. In one embodiment, the first sidelink communication is 5G NR-V2X PC5 mode 2, and the second sidelink communication is LTE-V2X PC5 mode 4. In this embodiment, different resource pools in TDM or FDM are assigned to the LTE SL and NR SL within the channel. However, the semi-static approach may have drawbacks. For example, in existing LTE-V2X preconfigurations (e.g., Society of Automotive Engineers (SAE) J3161 / 1, European Telecommunications Standards Institute (ETSI) EN 303 613), all time and frequency resources are allocated to LTE SL. Therefore, once LTE SL is introduced, updating the resource pool configuration may not be easy due to the long lifespan of vehicles (typically more than 10 years). Even when it is possible to update the resource pool configuration for already deployed LTE SL radios, semi-static resource pool allocation can result in underutilization or overutilization of spectrum (e.g., channel congestion) due to imbalances in the number of LTE SL and NR SL radios at a given location and / or time, as well as the amount of resource pool allocated to each technology. In contrast, dynamic same-channel coexistence enables efficient use of spectrum because time and frequency resources are dynamically distributed and shared by LTE SL and NR SL.

[0040] Resource allocation in dynamic channel coexistence uses multi-RAT channel sensing information. However, as described above, direct exchange of such information between UEs of different RATs may not be possible. At least one embodiment of this disclosure addresses the above problem when sharing channel sensing information between UEs.

[0041] Figure 10 is a flowchart of a method 1000 for transferring at least one of resource reservation information or channel sensing information in sidelink communication according to one embodiment of the present disclosure. The method may be performed by a node in sidelink communication. The node may be a network node, a roadside unit, a relay node, or another UE in sidelink communication (for example, at least one UE other than the first or second UE).

[0042] Method 1000 includes step 1002 of receiving at least one of resource reservation information or channel sensing information acquired by at least one first UE from at least one first UE. For example, in one embodiment, a node may receive at least one of resource reservation information or channel sensing information acquired by the first UE in sidelink communication. The first UE may acquire at least one of resource reservation information or channel sensing information by performing a channel sensing operation. For example, the first UE may perform channel sensing in the sensing window shown in Figure 2 or the sensing window shown in Figure 5A. The first UE may acquire resource reservation information based on decoding sidelink control information (SCI) contained in the received sidelink signal. In one embodiment ,bloodThe channel sensing information may include at least one of the received signal strength indicator (RSSI) or the reference signal received power (RSRP) of the sidelink signal. In one embodiment, the channel sensing information may further include at least one of the RAT from which the channel sensing information was acquired, the location of the first UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed.

[0043] In one embodiment, a node includes multiple datasets of the same RAT. Mu Chi Channel sensing information may be received. In this embodiment, for example, a node may integrate multiple datasets of the same RAT by averaging the radio measurements across multiple datasets, or by retaining only the highest or lowest measurements.

[0044] In one embodiment, a node may receive at least one of resource reservation information or channel sensing information from multiple UEs. In this embodiment, at least one of resource reservation information or channel sensing information includes multiple datasets received from multiple UEs. The node may receive the multiple datasets simultaneously or at different times, provided that the time difference is within a predetermined threshold. The node may further map the physical location of each of the multiple UEs to at least one of cell identification information (ID), zone ID, or roadside unit (RSU) ID.

[0045] In one embodiment, at least one of resource reservation information or channel sensing information may include multiple datasets received within a predetermined time threshold. The multiple datasets may be received from a single UE or multiple UEs. In this embodiment, the node may determine the validity of each of the multiple datasets. The node may further remove one or more datasets from the multiple datasets that are determined to be invalid.

[0046] Method 1000 includes step 1004 of storing at least one of resource reservation information or channel sensing information. For example, a node may store at least one of the received resource reservation information or channel sensing information in internal and / or external memory. In one embodiment, at least one of the resource reservation information or channel sensing information is stored in a core network node. In one embodiment, at least one of the resource reservation information or channel sensing information is stored as one or more datasets, each of which is associated with a timer, resource pool, RAT, or location of a first UE.

[0047] Method 1000 includes step 1006 of transmitting at least one of the received resource reservation information or channel sensing information to the second UE. For example, a node may transmit at least one of the received resource reservation information or channel sensing information to the second UE. In one embodiment, after the second UE enters radio resource control (RRC) connection mode or RRC inactive mode, the node transmits at least one of the received resource reservation information or channel sensing information The node sends at least one of the following to the second UE. The node may also send at least one of the resource reservation information or channel sensing information via an RRC container or RRC message. Alternatively, the node may send at least one of the resource reservation information or channel sensing information via a media access control (MAC) control element (CE).

[0048] In one embodiment, the node may periodically transmit at least one of resource reservation information or channel sensing information to the second UE. In one embodiment, the node may transmit at least one of resource reservation information or channel sensing information to the second UE based on a request for at least one of resource reservation information or channel sensing information received from the second UE. In one embodiment, such request received from the second UE may include a request for at least one of resource reservation information or channel sensing information relating to one or more other UEs operating on different RATs that use resource pools that overlap with the resource pool used by the second UE. The overlapping resource pools may be the same resource pool or partially overlapping resource pools.

[0049] In one embodiment, at least one of resource reservation information or channel sensing information is received by a second UE and used to avoid sensing all or part of the resource pool by excluding one or more resources based on the at least one of the resource reservation information or channel sensing information. For example, upon receiving at least one of the resource reservation information or channel sensing information, the second UE may identify resources reserved by other UEs and exclude such reserved resources during resource selection.

[0050] In one embodiment, upon receiving at least one of resource reservation information or channel sensing information, the node may start a timer for one or more datasets, and delete the dataset when the timer expires. This time may be pre-configured or set by the network.

[0051] In one embodiment, a request for at least one of resource reservation information or channel sensing information received from a second UE includes the absolute location of the second UE. In this embodiment, for example, the node may further calculate the physical distance between the first UE and the second UE. If the physical distance between the first UE and the second UE is below a predetermined threshold, the node may determine that at least one of the resource reservation information or channel sensing information was acquired near the second UE and is therefore associated with the second UE.

[0052] In one embodiment, a request for at least one of resource reservation information or channel sensing information received from a second UE includes the geographical location of the first UE, for example, at least one of the cell ID, zone ID, or RSU ID of the first UE. In this embodiment, for example, a node may have a cell ID, zone ID, or RSU ID. The node may further determine whether at least one of the resource reservation information or channel sensing information associated with the ID is related to the second UE. The node may further determine the dataset corresponding to the second UE based on the mapping between the location of the second UE and the location of the first UE.

[0053] In one embodiment, the node may further send to the second UE a response message including an indication of whether at least one of resource reservation information or channel sensing information is considered to be related to the second UE, the location of the first UE, or at least one of the information related to the second UE.

[0054] Figure 11 is a schematic diagram illustrating a method, according to one embodiment of the present disclosure, for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication. Method 1100 may be performed by a UE in sidelink communication.

[0055] Method 1100 includes step 1102 of performing a sidelink channel sensing operation to obtain at least one of resource reservation information or channel sensing information. At least one of the resource reservation information or channel sensing information is associated with the location information of the UE.

[0056] For example, in sidelink communication, the UE may obtain at least one of resource reservation information or channel sensing information by performing a channel sensing operation. For example, the UE may perform background channel sensing in the sensing window shown in Figure 2 or the sensing window shown in Figure 5A. Based on the decoding of the SCI contained in the received sidelink signal, the UE You may retrieve resource reservation information. .blood The channel sensing information may include at least one of the received signal strength indicator (RSSI) or reference signal received power (RSRP) of the sidelink signal. The channel sensing information may further include at least one of the RAT where the channel sensing information was acquired, the location of the UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool in which the channel sensing operation was performed.

[0057] Method 1100 may include step 1104, which reports location information and at least one of resource reservation information or channel sensing information to a device in sidelink communication, enabling the device to provide the location information and at least one of resource reservation information or channel sensing information to other UEs. The location information and at least one of resource reservation information or channel sensing information may be used by other UEs to avoid sensing all or part of a resource pool by excluding one or more resources based on the location information and at least one of the resource reservation information or channel sensing information. For example, other UEs may refrain from sensing resources that are indicated to be used by other devices based on the received location information and at least one of resource reservation information or channel sensing information. The device may be a node in sidelink communication, such as a network node, roadside unit, relay node, or one or more other UEs in sidelink communication.

[0058] The UE may periodically or immediately report location information and at least one of resource reservation information or channel sensing information to the device, based on the UE's settings or pre-configurations. In one embodiment, the UE may immediately report location information and at least one of resource reservation information or channel sensing information to the device whenever the UE has such information. In this embodiment, the UE's settings may be communicated to the UE as dedicated RRC signaling in a reconfiguration message or broadcast message, or as a setting in a Media Access Control (MAC) protocol control element (CE), or in a NAS protocol data unit. If location information and at least one of resource reservation information or channel sensing information are reported immediately to the device, the arrival interval between such location information and at least one of resource reservation information or channel sensing information may be controlled by a timer included in the UE, which starts the timer after sending a report and waits for the timer to expire until it sends another report. The timer is fixed or It may be pre-configured (for example, in the UE) or configured by the RRC protocol, NAS protocol, or MAC protocol.

[0059] In one embodiment, location information and at least one of resource reservation information or channel sensing information are reported to the device based on a trigger event that triggers reporting. The trigger event may be set in an RRC reconfiguration message or in a MAC protocol control element, or as an instruction in a NAS protocol data unit. Alternatively, the trigger event may be pre-configured in the UE. The trigger event may include at least one of the arrival of multiple UEs, a change in received signal power, or an interference level.

[0060] In one embodiment, the UE operates on an LTE network, and location information and at least one of resource reservation information or channel sensing information are reported to the device using mobile originated early data transmission (MO-EDT) or pre-configured uplink resource (PUR). In another embodiment, the UE operates on an NR network, and location information and at least one of resource reservation information or channel sensing information are reported to the device using a small data transmission (SDT) procedure.

[0061] Figure 12 shows resource reservation information from a device in a communication network according to one embodiment of the present disclosure. ha chi This is a schematic diagram illustrating a method 1200 for obtaining at least one of the channel sensing pieces of information. Method 1200 may be performed by a UE in sidelink communication.

[0062] Method 1200 may include step 1202 of sending a request to the device for at least one of resource reservation information or channel sensing information. In one embodiment, the request for at least one of resource reservation information or channel sensing information may further include at least one of the UE's RAT, the UE's location, the UE's cell ID, or the UE's zone ID. In one embodiment, the channel sensing information may further include at least one of the sidelink signal's received signal strength indicator (RSSI) or reference signal received power (RSRP). In one embodiment, the channel sensing information may further include at least one of the RAT from which the channel sensing information was acquired, the location of another UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed.

[0063] In one embodiment, before the UE starts the channel sensing window, ha chi A request for channel sensing information is sent. The channel sensing window may be the channel sensing window shown in Figure 2 or Figure 5A. In one embodiment, the UE sends a request for at least one of resource reservation information or channel sensing information at the end of the channel sensing window and before the start of the resource selection window.

[0064] In one embodiment, method 1200 does not perform step 1202, but only performs step 1204, which is described below.

[0065] Method 1200 may include step 1204 of receiving at least one of resource reservation information or channel sensing information from the device. At least one of the resource reservation information or channel sensing information is not applicable to the device. In one embodiment, at least one of resource reservation information or channel sensing information This is used by the UE to avoid sensing all or part of a resource pool by excluding one or more resources based on at least one of the resource reservation information or channel sensing information. In one embodiment, the UE refrains from sensing resources that are indicated to be used by other devices based on at least one of the received resource reservation information or channel sensing information. In one embodiment, the UE performs resource selection by excluding one or more subframes from the resource selection window due to unmonitored resources in the channel sensing window, or by excluding one or more resources reserved by other UEs from the resource selection window if the corresponding SL-RSRP exceeds a set or pre-configured SL-RSRP exclusion threshold. In one embodiment, the UE may further integrate at least one of the received resource reservation information or channel sensing information with sensing information collected by the UE during the channel sensing window.

[0066] In one embodiment, the UE may further perform resource selection by excluding one or more subframes from the resource selection window that are due to unmonitored resources in the channel sensing window; excluding one or more resources reserved by other UEs on the same RAT from the resource selection window if the corresponding SL-RSRP exceeds a set or pre-configured SL-RSRP exclusion threshold; or excluding resources reserved by other UEs on other RATs from the resource selection window if the corresponding SL-RSRP exceeds an inter-RAT SL-RSRP exclusion threshold. In one embodiment, the inter-RAT SL-RSRP exclusion threshold is defined using an offset from an existing set or pre-configured SL-RSRP threshold. The offset may be pre-configured or set, or it may be stepped up based on the indicated location data. In one embodiment, the inter-RAT SL-RSRP exclusion threshold is determined as a function of reported location information.

[0067] Figure 13 is a block diagram of device 1300 according to one embodiment of the present disclosure. Device 1300 can be a node for communication, such as a network node, roadside unit, relay node, or UE. Device 1300 may include, but is not limited to, a computer system, a vehicle, a component mounted on a vehicle, a roadside unit, a laptop computer, a wireless terminal including a mobile phone, a wireless handheld device, a wireless personal device, or any other form. Device 1300 may include an antenna 1302 which may be used to send and receive electromagnetic signals to and from a base station or other device. Antenna 1302 may include one or more antenna elements and may enable various input / output antenna configurations, such as a multiple input multiple output (MIMO), multiple input single output (MISO), or single input multiple output (SIMO) configuration. In one embodiment, antenna 1302 may include a plurality (e.g., tens or hundreds) of antenna elements and may enable multi-antenna functions such as beamforming. In one embodiment, the antenna 1302 is a single antenna.

[0068] Device 1300 may include a transceiver 1304 connected to antenna 1302. Transceiver 1304 may be a radio transceiver in device 1300 and may communicate bidirectionally with a base station or other devices. For example, transceiver 1304 may receive / transmit radio signals to and from a UE or RSU in sidelink communication. Transceiver 1304 may include a modem for modulating packets, providing the modulated packets to antenna 1302 for transmission, and demodulating packets received from antenna 1302.

[0069] Device 1300 may include memory 1306. Memory 1306 may be any type of computer-readable storage medium, including volatile or non-volatile memory devices, or a combination thereof. Computer-readable storage medium includes, but is not limited to, non-temporary computer storage medium. Non-temporary storage medium may be accessed by a general-purpose computer or a dedicated computer. Examples of non-temporary storage medium include, but are not limited to, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable ROM (EEPROM), digital multipurpose disks (DVDs), flash memory, compact disk (CD)ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, etc. Non-temporary medium may be used to carry or store desired program code means (e.g., instructions and / or data structures) and may be accessed by a general-purpose or dedicated computer, or a general-purpose or dedicated processor. In some examples, software / program code may be transmitted from a remote source (e.g., a website, server, etc.) using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave. In such examples, coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave fall within the definition of a medium. Combinations of the above examples also fall within the scope of a computer-readable medium.

[0070] Device 1306 may store information related to the identities of device 1300 and signals and / or data received by antenna 1302. Memory 1306 may also store post-processing signals and / or data. Furthermore, memory 1306 may store computer-readable program instructions, mathematical models, and algorithms used for signal processing in transceiver 1304 and calculations in processor 1308. Memory 1306 may further store computer-readable program instructions executed by processor 1308 to operate device 1300 to perform various functions described herein. In some examples, memory 1306 may include a basic input / output system (BIOS) that may control basic hardware or software operations, such as interactions with peripheral components or devices.

[0071] The computer-readable program instructions of this disclosure may be assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​and conventional procedural programming languages. The computer-readable program instructions may be executed entirely on a computing device as a standalone software package, or they may be partially executed on a first computing device and partially executed on a second computing device located away from the first computing device. In the latter scenario, the second remote computing device may be connected to the first computing device via any type of network, including a local area network (LAN) or a wide area network (WAN).

[0072] Device 1300 may include a processor 1308 which may include a hardware device having processing capabilities. The processor 1308 may be a general-purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a programmable The processor may include at least one of the following: a logic device, a discrete gate or transistor logic component, a discrete hardware component, or other programmable logic devices. Examples of general-purpose processors include, but are not limited to, microprocessors, any conventional processor, a controller, a microcontroller, or a state machine. In one embodiment, the processor 1308 may be implemented using a combination of devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration). The processor 1308 may receive downlink or sidelink signals from the transceiver 1304 and further process such signals. The processor 1308 may also receive data packets from the transceiver 1304 and further process such packets. In one embodiment, the processor 1308 may be configured to operate memory using a memory controller. In one embodiment, the memory controller may be integrated into the processor 1308. The processor 1308 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1306) to cause device 1300 to perform various functions.

[0073] Device 1300 may include a Global Positioning System (GPS) 1310. The GPS 1310 may be used to enable location-based services or other services based on the geographical location of Device 1300. The GPS 1310 may receive Global Navigation Satellite System (GNSS) signals from a single or multiple satellites via the antenna 1302 and provide the geographical location of Device 1300 (for example, the coordinates of Device 1300).

[0074] Device 1300 may include an input / output (I / O) device 1312 which may be used to communicate the results of signal processing and calculations to the user or other devices. The I / O device 1312 may include a user interface which includes a display and an input device for sending user commands to the processor 1308. The display may be configured to show the status of signal reception at device 1300, data stored in memory 1306, the status of signal processing, and calculation results, etc. The display may include, but is not limited to, a cathode ray tube (CRT), a liquid crystal display (LCD), a light-emitting diode (LED), a gas plasma display, a touchscreen, or other image projection device for displaying information to the user. The input device may be any type of computer hardware equipment used to receive data and control signals from the user. The input device may include, but is not limited to, a keyboard, mouse, scanner, digital camera, joystick, trackball, cursor directional keys, touchscreen monitor, or audio / video commander, etc.

[0075] Device 1300 may further include a machine interface 1314 such as an electric bus connecting a transceiver 1304, memory 1306, processor 1308, GPS 1310, and I / O device 1312.

[0076] In one embodiment, device 1300 may be configured or programmed to transfer at least one of resource reservation information or channel sensing information in sidelink communication. For example, device 1300 may be a node in sidelink communication, and processor 1308 executes instructions stored in memory 1306 to receive at least one of resource reservation information or channel sensing information acquired by at least one first user equipment (UE) from at least one first UE, store at least one of resource reservation information or channel sensing information, and resource The device may be configured to transmit at least one of the received reservation information or channel sensing information to the second UE. Device 1300 may include other well-known elements of the node. For brevity, other well-known elements are omitted here.

[0077] The processor 1308 may be further configured to execute instructions stored in memory 1306 to periodically send at least one of resource reservation information or channel sensing information to the second UE. The processor 1308 may be further configured to execute instructions stored in memory 1306 to receive a request from the second UE for at least one of resource reservation information or channel sensing information, and to send at least one of resource reservation information or channel sensing information to the second UE in response to the request. At least one of resource reservation information or channel sensing information is stored as one or more datasets. Each of the one or more datasets is associated with at least one of a timer, a resource pool, a RAT, or a location of the first UE. Upon receiving at least one of resource reservation information or channel sensing information, the processor 1308 may be further configured to execute instructions stored in memory to start a timer for one of the datasets and delete the dataset when the timer expires.

[0078] The channel sensing information may include multiple datasets of the same RAT, and the processor 1308 may be further configured to integrate multiple datasets of the same RAT by executing instructions stored in memory 1306 to average the radio measurements across multiple datasets, or by retaining only the highest or lowest measurements.

[0079] Device 1300 may receive at least one of resource reservation information or channel sensing information from multiple UEs. At least one of resource reservation information or channel sensing information may include multiple datasets received from multiple UEs. In one embodiment, device 1300 may receive multiple datasets from multiple UEs simultaneously. In other embodiments, device 1300 may receive multiple datasets from multiple UEs at different times, where the time difference is within a predetermined threshold. Processor 1308 may be further configured to execute instructions stored in memory 1306 to map the physical location of each of the multiple UEs to at least one of cell identification information (ID), zone ID, or roadside unit (RSU) ID.

[0080] In one embodiment, at least one of the resource reservation information or channel sensing information received by device 1300 may include a plurality of datasets received within a predetermined time threshold. In this embodiment, processor 1308 executes instructions stored in memory 1306. ,blood The validity of each set of channel sensing information is determined, and among the sets, if it is determined to be invalid... Ta Chi It is configured to remove one or more sets of channel sensing information.

[0081] The processor 1308 may be further configured to execute instructions stored in memory 1306 to calculate the physical distance between the first UE and the second UE if the request includes the absolute location of the first UE, and to determine whether at least one of the resource reservation information or channel sensing information associated with at least one of the cell ID, zone ID, or RSU ID is associated with the second UE. The processor 1308 may be further configured to execute instructions stored in memory 1306 to determine whether at least one of the resource reservation information or channel sensing information is associated with the second UE if the physical distance between the first UE and the second UE falls below a predetermined threshold.

[0082] The processor 1308 may be further configured to execute instructions stored in memory 1306 to determine a dataset corresponding to the second UE based on a mapping between the location of the second UE and the location of the first UE. The processor 1308 may be further configured to execute instructions stored in memory 1306 to send to the second UE a response message including an indication of whether at least one of resource reservation information or channel sensing information is considered to be related to the second UE, the location of the first UE, or at least one of the information related to the second UE.

[0083] In one embodiment, device 1300 may be configured or programmed to provide location information and at least one of resource reservation information or channel sensing information in sidelink communication. For example, device 1300 may be a UE in sidelink communication, and processor 1308 may execute instructions stored in memory 1306 to perform a sidelink channel sensing operation to obtain at least one of resource reservation information or channel sensing information associated with the UE's location information, and to report the location information and at least one of the resource reservation information or channel sensing information to a device in sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to another UE. The device may be a communication node, such as a network node, roadside unit, relay node, or another UE.

[0084] The processor 1308 may periodically report the location information and at least one of the resource reservation information or channel sensing information to the device by executing instructions stored in memory 1306. Alternatively, the processor 1308 may immediately report the location information and at least one of the resource reservation information or channel sensing information to the device as soon as the device 1300 has the location information and at least one of the resource reservation information or channel sensing information. Periodic or immediate reporting is determined based on network settings or pre-configurations. These settings may be communicated to the device 1300 as dedicated RRC signaling in reconfiguration messages or broadcast messages, or as settings in media access control (MAC) protocol control elements, or as settings in NAS protocol data units.

[0085] If the location information and at least one of the resource reservation information or channel sensing information are reported to the device immediately, the arrival interval between the location information and at least one of the resource reservation information or channel sensing information is controlled by a timer included in device 1300, which starts the timer after sending the report and waits for the timer to expire until it sends another report. The timer may be fixed, pre-configured (for example, in the UE), or configured by the Radio Resource Control (RRC) protocol, the Non-Access Stratum (NAS) protocol, or the Media Access Control (MAC) protocol.

[0086] The location information and at least one of the resource reservation information or channel sensing information may be reported to the device based on a trigger event that triggers reporting. The trigger event may be set or pre-configured to the UE as an RRC reset message, or as an instruction in a MAC protocol control element, or in a NAS protocol data unit. The trigger event may include at least one of the arrival of multiple UEs including the UE, a change in received signal power, or interference level. In one embodiment, the device 1300 may operate on an LTE network, and the location information and the At least one of resource reservation information or channel sensing information is reported to the device using Mobile-Initiated Early Data Transmission (MO-EDT) or Pre-configured Uplink Resource (PUR). In one embodiment, device 1300 may operate on an NR network, and the location information and at least one of the resource reservation information or channel sensing information are reported to the device using a Small Data Transmission (SDT) procedure.

[0087] In one embodiment, device 1300 may be configured or programmed to acquire at least one of resource reservation information or channel sensing information in sidelink communication. For example, device 1300 may be a UE in sidelink communication, and processor 1308 may execute instructions stored in memory 1306 to receive at least one of resource reservation information or channel sensing information from the device. At least one of the resource reservation information or channel sensing information applies to other UEs but not to the device. In one embodiment, processor 1308 is configured to execute instructions stored in memory to send a request for at least one of resource reservation information or channel sensing information to the device and receive at least one of the resource reservation information or channel sensing information as a response to the request. The device may be a communication node, such as a network node, roadside unit, relay node, or other UE.

[0088] A request for at least one of resource reservation information or channel sensing information may further include at least one of the following: the radio access technology (RAT) of device 1300, the location of device 1300, the cell ID of device 1300, or the zone ID of device 1300. At least one of the resource reservation information or channel sensing information may be used by device 1300 to avoid sensing all or part of a resource pool by excluding one or more resources based on at least one of the resource reservation information or channel sensing information. The channel sensing information may further include at least one of the received signal strength indicator (RSSI) or reference signal received power (RSRP) of the sidelink signal. The channel sensing information may further include at least one of the RAT from which the channel sensing information was obtained, the location of another UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed.

[0089] The processor 1308 may be further configured to execute instructions stored in memory 1306 to send a request for at least one of resource reservation information or channel sensing information before the UE starts a channel sensing window. The processor 1308 may be further configured to execute instructions stored in memory 1306 to refrain from sensing resources that are indicated to be used by other devices based on at least one of the received resource reservation information or channel sensing information. The processor 1308 may be further configured to execute instructions stored in memory 1306 to perform resource selection by excluding one or more subframes resulting from unmonitored resources in the channel sensing window from the resource selection window, or by excluding one or more resources reserved by other UEs from the resource selection window if the corresponding SL-RSRP exceeds a set or pre-configured SL-RSRP exclusion threshold.

[0090] A request for at least one of resource reservation information or channel sensing information may be sent before the end of the channel sensing window and before the start of the resource selection window. The processor 1308 executes instructions stored in memory 1306 to process the resource The system may be further configured to integrate at least one of the received reservation information or channel sensing information with sensing information collected by the UE during the channel sensing window.

[0091] The processor 1308 may be further configured to perform resource selection by executing instructions stored in memory to exclude one or more subframes resulting from unmonitored resources in the channel sensing window from the resource selection window; to exclude one or more resources reserved by other UEs on the same RAT from the resource selection window if the corresponding SL-RSRP exceeds a set or pre-configured SL-RSRP exclusion threshold; or to exclude resources reserved by other UEs on other RATs from the resource selection window if the corresponding SL-RSRP exceeds an inter-RAT SL-RSRP exclusion threshold. The inter-RAT SL-RSRP exclusion threshold may be defined using an offset from an existing set or pre-configured SL-RSRP threshold. The offset may be pre-configured or set, or it may be stepped up based on the indicated location data. The inter-RAT SL-RSRP exclusion threshold may be determined as a function of reported location information.

[0092] Where used in this disclosure, the use of the term "or" in a list of items indicates an inclusive list. Lists of items may be preceded by phrases such as "at least one of" or "one or more of." For example, the list "at least one of A, B, or C" includes A or B or C, or AB (i.e., A and B), or AC or BC, or ABC (i.e., A, B, and C). Also, where used in this disclosure, the phrase "based on" preceding a list of conditions should not be interpreted as "based solely on" the set of conditions, but rather as "based at least partially on" the set of conditions. For example, a result described as "based on condition A" may be based on both condition A and condition B without exceeding the scope of this disclosure.

[0093] In this specification, the terms “comprise,” “include,” and “contain” are used interchangeably and may have the same meaning, and should be interpreted as comprehensive and unrestricted. The terms “comprise,” “include,” and “contain” may be used before a list of elements and may indicate that at least all of the elements enumerated in the list are present, but other elements not listed may also be present. For example, if A completes B and C, then both {B,C} and {B,C,D} are within the scope of A.

[0094] This disclosure describes exemplary configurations that do not represent all possible implementations or all configurations within the scope of this disclosure, in relation to the accompanying drawings. The term “exemplary” should not be interpreted as “preferred” or “advantageous compared to other examples,” but rather as “exemplary, example, or illustration.” By reading this disclosure, including the description of embodiments and drawings, it will be understood that the technology disclosed herein may be implemented using alternative embodiments. A person skilled in the art will understand that embodiments, or combinations of specific features of embodiments described herein, may lead to yet another embodiment for practicing the technology described herein. Thus, this disclosure should be given the broadest scope that is consistent with the principles and novel features disclosed herein, and is not limited to the examples and designs described herein.

[0095] The flowcharts and block diagrams in the figures illustrate examples of the architecture, functionality, and operation of possible implementations of systems, methods, and devices according to various embodiments. Note that in some alternative implementations, the functions described within the blocks may occur in a different order than that shown. For example, two blocks shown consecutively may actually be executed substantially simultaneously, or they may be executed in reverse order depending on the functions they relate to. Similarly, methods consistent with various embodiments may include additional steps, and certain steps may be omitted or combined.

[0096] It is understood that the embodiments described are not mutually exclusive, and that elements, components, materials, or steps described in relation to one exemplary embodiment may be combined with other embodiments in an appropriate manner to achieve a desired design objective, or may be excluded from other embodiments.

[0097] References to “some embodiments” or “some exemplary embodiments” in this specification mean that certain features, structures, or characteristics described in relation to such embodiments may be included in at least one embodiment. Occurrences of the phrases “one embodiment,” “some embodiments,” or “another embodiment” in various parts of this disclosure do not necessarily refer to the same embodiment, nor are different or alternative embodiments necessarily mutually exclusive with other embodiments.

[0098] Furthermore, the articles “a” and “an” used in this disclosure and the attached claims should generally be interpreted as meaning “one or more” unless otherwise specified or unless the context makes it clear that they refer to a singular form.

[0099] Unless explicitly stated otherwise, each number and range should be interpreted as approximate, as if preceded by the words "about" or "approximately."

[0100] The elements in the following method claims are described in a specific order, if any, but unless the description of the claim otherwise suggests a specific order for carrying out some or all of those elements, those elements are not necessarily intended to be limited to being carried out in that specific order.

[0101] For clarity, it is understood that certain features of this disclosure described in the context of separate embodiments may be provided in combination in a single embodiment. Conversely, various features of this specification described in the context of a single embodiment for the sake of brevity may be provided separately, in any suitable subcombination, or preferably in any other described embodiment of this specification. Certain features described in the context of various embodiments are not essential features of those embodiments unless otherwise noted.

[0102] Furthermore, it will be understood that various changes, substitutions, and modifications relating to the details, materials, and arrangement of the parts described and illustrated to illustrate the nature of the embodiments described may be made by those skilled in the art without departing from the scope. Accordingly, the following claims encompass all substitutions, changes, and modifications that fall within the scope of the claims.

[0103] Note 1 In sidelink communication, a small portion of resource reservation information or channel sensing information It is a device that can transfer at least one, Memory for storing instructions, Execute the instruction stored in the memory, Receiving from at least one first user device (UE) the resource reservation information or the channel sensing information acquired by the at least one first UE, The storage of at least one of the resource reservation information or the channel sensing information, Transmitting at least one of the resource reservation information or the channel sensing information received to the second UE, A processor that executes, Equipped with, Device.

[0104] Note 2 At least one of the resource reservation information or the channel sensing information is obtained by performing channel sensing with the at least one first UE. The apparatus described in Appendix 1.

[0105] Note 3 The device is a network node, a roadside unit, a relay node, or another UE in the sidelink communication. The apparatus described in Appendix 1.

[0106] Note 4 The processor executes the instruction stored in the memory, Periodically transmit at least one of the resource reservation information or the channel sensing information to the second UE. To further execute, The apparatus described in Appendix 1.

[0107] Note 5 The processor executes the instruction stored in the memory, Receiving a request from the second UE for at least one of the resource reservation information or the channel sensing information, In response to the request, transmit at least one of the resource reservation information or the channel sensing information to the second UE, To further execute, The apparatus described in Appendix 1.

[0108] Note 6 The request received from the second UE includes a request for at least one of the resource reservation information or channel sensing information relating to one or more other UEs that use a resource pool that overlaps with the resource pool used by the second UE but operate on a different radio access technology (RAT), The apparatus described in Appendix 5.

[0109] Appendix 7 The resource reservation information or the channel sensing information, at least one of the above The second UE uses the above-mentioned method to avoid sensing all or part of the resource pool by excluding one or more resources based on at least one of the resource reservation information or the channel sensing information. The apparatus described in Appendix 1.

[0110] Note 8 The resource reservation information is obtained by the first UE based on the decoding of the sidelink control information (SCI) contained in the sidelink signal. The apparatus described in Appendix 2.

[0111] Note 9 The channel sensing information includes at least one of the received signal strength indicator (RSSI) or the reference signal received power (RSRP) of the sidelink signal. The apparatus described in Appendix 2.

[0112] Note 10 The channel sensing information further includes at least one of the following: the RAT from which the channel sensing information was acquired, the location of the first UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed. The apparatus described in Appendix 9.

[0113] Note 11 The device is the network node, and at least one of the resource reservation information or the channel sensing information is transmitted to the second UE via a radio resource control (RRC) container or RRC message. The apparatus described in Appendix 3.

[0114] Note 12 The device is the network node, and at least one of the resource reservation information or the channel sensing information is transmitted to the second UE by a media access control (MAC) control element (CE). The apparatus described in Appendix 3.

[0115] Note 13 At least one of the resource reservation information or the channel sensing information is stored as one or more datasets, and each of the one or more datasets is associated with at least one of the timer, resource pool, RAT, or the location of the first UE. The apparatus described in Appendix 1.

[0116] Note 14 The processor executes the instruction stored in the memory, Upon receiving at least one of the resource reservation information or the channel sensing information, the timer for one or more datasets is started. When the timer expires, the dataset is deleted. To further execute, The apparatus described in Appendix 13.

[0117] Note 15 The channel sensing information includes multiple datasets of the same RAT. The processor executes the instruction stored in the memory, Integrating the multiple datasets of the same RAT by averaging the wireless measurements across the multiple datasets, or by retaining only the highest or lowest measurements. Execute The apparatus described in Appendix 1.

[0118] Note 16 The first UE includes a plurality of UEs, and at least one of the resource reservation information or the channel sensing information includes a plurality of datasets received simultaneously from the plurality of UEs or at different times with a time difference within a predetermined threshold. The apparatus described in Appendix 1.

[0119] Note 17 The processor executes the instruction stored in the memory, Mapping the physical location of each of the aforementioned multiple UEs to at least one of the following: cell identification information (ID), zone ID, or roadside unit (RSU) ID. Execute The apparatus described in Appendix 16.

[0120] Note 18 The resource reservation information or the channel sensing information, at least one of which includes a plurality of datasets received within a predetermined time threshold, The processor executes the instruction stored in the memory, Determining the effectiveness of each of the aforementioned multiple datasets, To remove one or more datasets from the aforementioned multiple datasets that have been determined to be invalid, Execute The apparatus described in Appendix 1.

[0121] Note 19 The processor executes the instruction stored in the memory, If the request includes the absolute position of the first UE, the physical distance between the first UE and the second UE is calculated. Determining whether the resource reservation information or channel sensing information associated with at least one of the cell ID, zone ID, or RSU ID is related to the second UE, To further execute, The apparatus described in Appendix 5.

[0122] Note 20 The processor executes the instruction stored in the memory, If the physical distance between the first UE and the second UE falls below a predetermined threshold, it is determined that at least one of the resource reservation information or the channel sensing information is associated with the second UE. To further execute, The apparatus described in Appendix 19.

[0123] Note 21 The processor executes the instruction stored in the memory, Based on the mapping between the location of the second UE and the location of the first UE, determine the dataset corresponding to the second UE. To further execute, The apparatus described in Appendix 1.

[0124] Note 22 The processor executes the instruction stored in the memory, Sending to the second UE at least one of the following to the second UE: a response message including whether or not at least one of the resource reservation information or the channel sensing information is considered to be related to the second UE, the location of the first UE, or information related to the second UE; To further execute, The apparatus described in Appendix 1.

[0125] Note 23 A user device (UE) for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication, Memory for storing instructions, Execute the instruction stored in the memory, Perform a sidelink channel sensing operation to obtain at least one of the resource reservation information or the channel sensing information associated with the location information of the UE, Reporting the location information and at least one of the resource reservation information or channel sensing information to the device in the sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to other UEs, A processor that executes, Equipped with, User equipment (UE).

[0126] Note 24 The location information and at least one of the resource reservation information or channel sensing information are reported to the device periodically, or immediately when the UE has the location information and at least one of the resource reservation information or channel sensing information, based on the UE's settings or pre-settings. UE as described in Appendix 23.

[0127] Note 25 The aforementioned settings of the UE are communicated to the UE as dedicated radio resource control (RRC) signaling in a reconfiguration message or broadcast message, or as settings in a media access control (MAC) protocol control element, or as settings in a non-access layer (NAS) protocol data unit. UE as described in Appendix 24.

[0128] Note 26 If the location information and at least one of the resource reservation information or channel sensing information are immediately reported to the device, the arrival interval between the location information and at least one of the resource reservation information or channel sensing information is, Controlled by a timer included in the UE, the UE starts the timer after sending a report and waits for the timer to expire until it sends another report. UE as described in Appendix 24.

[0129] Note 27 The timer may be fixed, pre-configured, or set by the RRC protocol, NAS protocol, or MAC protocol. UE as described in Appendix 26.

[0130] Note 28 The location information and at least one of the resource reservation information or channel sensing information are reported to the device based on a trigger event that triggers the report, the trigger event being set by an RRC reset message, or by a MAC protocol control element, or as an instruction in a NAS protocol data unit, or pre-configured in the UE. UE as described in Appendix 23.

[0131] Note 29 The trigger event includes at least one of the following: the arrival of multiple UEs including the UE, a change in received signal power, or an interference level. UE as described in Appendix 28.

[0132] Note 30 The UE operates on a Long-Term Evolution (LTE) network, and the location information and at least one of the resource reservation information or channel sensing information are reported to the device using Mobile-Initiated Early Data Transmission (MO-EDT) or Pre-configured Uplink Resource (PUR). UE as described in Appendix 23.

[0133] Note 31 The UE operates on a new radio (NR) network, and the location information and at least one of the resource reservation information or channel sensing information are reported to the device using a Small Data Transmission (SDT) procedure. UE as described in Appendix 23.

[0134] Note 32 The device is a network node, a roadside unit, a relay node, or another UE in the sidelink communication. UE as described in Appendix 23.

[0135] Note 33 A user device (UE) for acquiring at least one of resource reservation information or channel sensing information in sidelink communication, Memory for storing instructions, Execute the instruction stored in the memory, Receiving from the device at least one of the resource reservation information or the channel sensing information that applies to other UEs but not to the device, A processor that executes, Equipped with, User equipment (UE).

[0136] Note 34 The processor executes the instruction stored in the memory, To transmit a request to the device for at least one of the resource reservation information or the channel sensing information. Execute UE as described in Appendix 33.

[0137] Note 35 The request for at least one of the resource reservation information or the channel sensing information further includes at least one of the UE's radio access technology (RAT), the UE's location, the UE's cell identification information (ID), or the UE's zone ID. UE as described in Appendix 34.

[0138] Note 36 The resource reservation information or the channel sensing information, at least one of which is used by the UE to avoid sensing all or part of the resource pool by excluding one or more resources based on the resource reservation information or the channel sensing information, UE as described in Appendix 33.

[0139] Note 37 The channel sensing information includes at least one of the received signal strength indicator (RSSI) or the reference signal received power (RSRP) of the sidelink signal. UE as described in Appendix 33.

[0140] Note 38 The channel sensing information further includes at least one of the following: the RAT from which the channel sensing information was acquired, the location of another UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed. UE as described in Appendix 37.

[0141] Note 39 The processor executes the instruction stored in the memory, Before the UE starts the channel sensing window, it sends the request for at least one of the resource reservation information or the channel sensing information. Execute UE as described in Appendix 34.

[0142] Note 40 The processor executes the instruction stored in the memory, Refrain from sensing a resource that is indicated to be used by another device based on at least one of the resource reservation information or the channel sensing information received. Execute UE as described in Appendix 33.

[0143] Note 41 The processor executes the instruction stored in the memory, Perform resource selection by excluding at least one of the following from the resource selection window: one or more subframes resulting from unmonitored resources within the channel sensing window, or one or more resources reserved by other UEs when the corresponding sidelink reference signal received power (SL-RSRP) exceeds the set or pre-configured SL-RSRP exclusion threshold. To further execute, UE as described in Appendix 40.

[0144] Note 42 The request for at least one of the resource reservation information or the channel sensing information is transmitted at the end of the channel sensing window and before the start of the resource selection window. UE as described in Appendix 34.

[0145] Note 43 The processor executes the instruction stored in the memory, Integrating the received resource reservation information or at least one of the channel sensing information with sensing information collected by the UE during the channel sensing window, Execute UE as described in Appendix 42.

[0146] Note 44 The processor executes the instruction stored in the memory, Perform resource selection by excluding at least one of the following from the resource selection window: one or more subframes resulting from unmonitored resources within the channel sensing window, one or more resources reserved by other UEs on the same RAT when the corresponding SL-RSRP exceeds a set or pre-configured SL-RSRP exclusion threshold, or resources reserved by other UEs on other RATs when the corresponding SL-RSRP exceeds an inter-RAT SL-RSRP exclusion threshold. Execute UE as described in Appendix 43.

[0147] Note 45 The RAT inter-SL-RSRP exclusion threshold is defined using an offset from an existing setting or a pre-configured SL-RSRP threshold. The aforementioned offset is, Pre-configured or configured, or It is adjusted step by step based on the provided location data. UE as described in Appendix 44.

[0148] Note 46 The RAT inter-SL-RSRP exclusion threshold is determined as a function of the reported location information. UE as described in Appendix 45.

[0149] Note 47 A method for transferring at least one of resource reservation information or channel sensing information in sidelink communication, Receiving from at least one first user device (UE) the resource reservation information or the channel sensing information acquired by the at least one first UE, The storage of at least one of the resource reservation information or the channel sensing information, Transmitting at least one of the resource reservation information or the channel sensing information received to the second UE, including, method.

[0150] Note 48 At least one of the resource reservation information or the channel sensing information is obtained by performing channel sensing with the at least one first UE. The method described in Appendix 47.

[0151] Note 49 The method described above is performed by a network node, a roadside unit, a relay node, or another UE in the sidelink communication. The method described in Appendix 47.

[0152] Note 50 Periodically transmit at least one of the resource reservation information or the channel sensing information to the second UE. Further including, The method described in Appendix 47.

[0153] Note 51 Receiving a request from the second UE for at least one of the resource reservation information or the channel sensing information, In response to the aforementioned request, at least one of the resource reservation information or the channel sensing information is transmitted to the second UE, Further including, The method described in Appendix 47.

[0154] Note 52 The request received from the second UE includes a request for at least one of the resource reservation information or channel sensing information relating to one or more other UEs that use a resource pool that overlaps with the resource pool used by the second UE but operate on a different radio access technology (RAT), The method described in Appendix 51.

[0155] Note 53 The resource reservation information or the channel sensing information, at least one of which is used by the second UE to avoid sensing all or part of the resource pool by excluding one or more resources based on the resource reservation information or the channel sensing information, The method described in Appendix 47.

[0156] Note 54 The resource reservation information is obtained by the first UE based on the decoding of the sidelink control information (SCI) contained in the sidelink signal. The method described in Appendix 48.

[0157] Note 55 The channel sensing information includes at least one of the received signal strength indicator (RSSI) or the reference signal received power (RSRP) of the sidelink signal. The method described in Appendix 48.

[0158] Note 56 The channel sensing information further includes at least one of the following: the RAT from which the channel sensing information was acquired, the location of the first UE, a timestamp indicating the time the channel sensing operation was performed, or the resource pool from which the channel sensing operation was performed. The method described in Appendix 55.

[0159] Note 57 The method is performed by the network node, and at least one of the resource reservation information or the channel sensing information is transmitted to the second UE via a radio resource control (RRC) container or RRC message. The method described in Appendix 49.

[0160] Note 58 The method is performed by the network node, and at least one of the resource reservation information or the channel sensing information is transmitted to the second UE by a media access control (MAC) control element (CE). The method described in Appendix 49.

[0161] Note 59 At least one of the resource reservation information or the channel sensing information is stored as one or more datasets, and each of the one or more datasets is associated with at least one of the timer, resource pool, RAT, or the location of the first UE. The method described in Appendix 47.

[0162] Note 60 Upon receiving at least one of the resource reservation information or the channel sensing information, the timer for one or more datasets is started. When the timer expires, the dataset is deleted. Further including, The method described in Appendix 59.

[0163] Note 61 The channel sensing information includes multiple datasets of the same RAT. The aforementioned method, By averaging the wireless measurements across the aforementioned multiple datasets, or by retaining only the highest or lowest measurements, the aforementioned multiple data of the same RAT Integrating sets Further including, The method described in Appendix 47.

[0164] Note 62 The first UE includes a plurality of UEs, and at least one of the resource reservation information or the channel sensing information includes a plurality of datasets received simultaneously from the plurality of UEs or at different times with a time difference within a predetermined threshold. The method described in Appendix 47.

[0165] Note 63 Mapping the physical location of each of the aforementioned multiple UEs to at least one of the following: cell identification information (ID), zone ID, or roadside unit (RSU) ID. Further including, The method described in Appendix 62.

[0166] Note 64 The resource reservation information or the channel sensing information, at least one of which includes a plurality of datasets received within a predetermined time threshold, The aforementioned method, Determining the effectiveness of each of the aforementioned multiple datasets, To remove one or more datasets from the aforementioned multiple datasets that have been determined to be invalid, Further including, The method described in Appendix 47.

[0167] Note 65 If the request includes the absolute position of the first UE, the physical distance between the first UE and the second UE is calculated. Determining whether the resource reservation information or channel sensing information associated with at least one of the cell ID, zone ID, or RSU ID is related to the second UE. Further including, The method described in Appendix 51.

[0168] Note 66 If the physical distance between the first UE and the second UE falls below a predetermined threshold, it is determined that at least one of the resource reservation information or the channel sensing information is associated with the second UE. Further including, The method described in Appendix 65.

[0169] Note 67 Determining the dataset corresponding to the second UE based on the mapping between the location of the second UE and the location of the first UE. Further including, The method described in Appendix 47.

[0170] Note 68 The resource reservation information or the channel sensing information, at least one of the above Sending to the second UE at least one of the following to the second UE: a response message including whether or not it is considered to be related to the second UE, the location of the first UE, or information related to the second UE; Further including, The method described in Appendix 47.

[0171] Note 69 A method for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication, Performing a sidelink channel sensing operation to obtain at least one of the resource reservation information or the channel sensing information associated with the location information of the user equipment (UE), Reporting the location information and at least one of the resource reservation information or channel sensing information to the device in sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to other UEs, including, method.

[0172] Note 70 The location information and at least one of the resource reservation information or channel sensing information are reported to the device periodically, or immediately when the UE has the location information and at least one of the resource reservation information or channel sensing information, based on the UE's settings or pre-settings. The method described in Appendix 69.

[0173] Note 71 The UE settings are communicated to the UE as settings in a dedicated Radio Resource Control (RRC) signaling in a reconfiguration message or broadcast message, or in a Media Access Control (MAC) protocol control element, or in a Non-Access Layer (NAS) protocol data unit. The method described in Appendix 70.

[0174] Note 72 If the location information and at least one of the resource reservation information or channel sensing information are reported to the device immediately, the arrival interval between the location information and at least one of the resource reservation information or channel sensing information is controlled by a timer included in the UE, the UE starts the timer after sending the report and waits for the timer to expire until it sends another report. The method described in Appendix 70.

[0175] Note 73 The timer may be fixed, pre-configured, or set by the RRC protocol, NAS protocol, or MAC protocol. The method described in Appendix 72.

[0176] Note 74 The location information and at least one of the resource reservation information or channel sensing information are reported to the device based on a trigger event that triggers the report, and the trigger event is either by an RRC reset message or by a MAC protocol In the control element, or set as an instruction in the NAS protocol data unit, or pre-configured in the UE, The method described in Appendix 69.

[0177] Note 75 The trigger event includes at least one of the following: the arrival of multiple UEs including the UE, a change in received signal power, or an interference level. The method described in Appendix 74.

[0178] Note 76 The UE operates on a Long-Term Evolution (LTE) network, and the location information and at least one of the resource reservation information or channel sensing information are reported to the device using Mobile-Initiated Early Data Transmission (MO-EDT) or Pre-configured Uplink Resource (PUR). The method described in Appendix 69.

[0179] Note 77 The UE operates on a new radio (NR) network, and the location information and at least one of the resource reservation information or channel sensing information are reported to the device using a Small Data Transmission (SDT) procedure. The method described in Appendix 69.

[0180] Note 78 The device is a network node, a roadside unit, a relay node, or another UE in the sidelink communication. The method described in Appendix 69.

[0181] Note 79 Resource reservation information from devices in a communication network ha chiA method for obtaining at least one of the channel sensing information, comprising: Receiving, from the device, at least one of the resource reservation information or the channel sensing information that is not applicable to the device; Including; Method.

[0182] Appendix 80 Further including transmitting a request for at least one of the resource reservation information or the channel sensing information to the device; Including further; The method according to Appendix 79.

[0183] Appendix 81 The request for at least one of the resource reservation information or the channel sensing information further includes at least one of a radio access technology (RAT) of a user equipment (UE), the location of the UE, the cell identification information (ID) of the UE, or the zone ID of the UE. The method according to Appendix 80.

[0184] Appendix 82 At least one of the resource reservation information or the channel sensing information Is used by the UE to avoid sensing the whole or part of a resource pool by excluding one or more resources based on at least one of the resource reservation information or the channel sensing information. The method according to Appendix 79.

[0185] Appendix 83 The channel sensing information includes at least one of a received signal strength indicator (RSSI) or a reference signal received power (RSRP) of a sidelink signal. The method according to Appendix 79.

[0186] Appendix 84 The channel sensing information is obtained from the RAT from which the channel sensing information was acquired. , others The location of the UE, a timestamp indicating the time when the channel sensing operation was performed, or further including at least one of the resource pools in which the channel sensing operation was performed, The method described in Appendix 83.

[0187] Note 85 Before the UE starts the channel sensing window, it sends the request for at least one of the resource reservation information or the channel sensing information. Further including, The method described in Appendix 80.

[0188] Note 86 Refrain from sensing a resource that is indicated to be used by another device based on at least one of the resource reservation information or the channel sensing information received. Further including, The method described in Appendix 79.

[0189] Note 87 To exclude from the resource selection window at least one of the following: one or more subframes resulting from unmonitored resources within the channel sensing window, or one or more resources reserved by other UEs when the corresponding sidelink reference signal received power (SL-RSRP) exceeds the configured or pre-configured SL-RSRP exclusion threshold. Further including, The method described in Appendix 86.

[0190] Note 88 The request for at least one of the resource reservation information or the channel sensing information is transmitted at the end of the channel sensing window and before the start of the resource selection window. The method described in Appendix 80.

[0191] Appendix 89 Integrating at least one of the received resource reservation information or the channel sensing information into the sensing information collected by the UE during the channel sensing window; further comprising, the method according to Appendix 88.

[0192] Appendix 90 Excluding at least one of one or more subframes due to unmonitored resources within the channel sensing window, one or more resources reserved by another UE on the same RAT when the corresponding SL-RSRP exceeds a set or pre-set SL-RSRP exclusion threshold, or resources reserved by another UE on another RAT when the corresponding SL-RSRP exceeds an inter-RAT SL-RSRP exclusion threshold from the resource selection window and performing resource selection; further comprising, the method according to Appendix 89.

[0193] Appendix 91 The inter-RAT SL-RSRP exclusion threshold is defined using an offset from an existing or pre-set SL-RSRP threshold, where the offset is, pre-set or set, or adjusted stepwise based on the indicated location data, the method according to Appendix 90.

[0194] Appendix 92 The inter-RAT SL-RSRP exclusion threshold is determined as a function of the reported location information, the method according to Appendix 91.

[0195] Appendix 93 A non-transitory computer-readable medium storing instructions executable by one or more processors of a device in a communication network to perform a method, The aforementioned method, From at least one first user device (UE), and acquired by the at least one first UE. Tari Source reservation information also ha chi Among channel sensing information few At the very least, receive one, The storage of at least one of the resource reservation information or the channel sensing information, Transmitting at least one of the resource reservation information or the channel sensing information received to the second UE including, Non-temporary computer-readable media.

[0196] Note 94 A non-temporary computer-readable medium for storing instructions that can be executed by one or more processors of user equipment (UE) in a communication network in order to perform a method, , The aforementioned method, Perform a side link channel sensing operation and associate it with the position information of the UE , Source reservation information also ha chi Among channel sensing information few At the very least, obtain one, Report the location information and at least one of the resource reservation information or channel sensing information to the device in the sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to other UEs. including, Non-temporary computer-readable media.

[0197] Note 95 A non-temporary computer-readable medium for storing instructions that can be executed by one or more processors of user equipment (UE) in a communication network in order to perform a method, The aforementioned method, From the device, resource reservation information that does not apply to the said device, or ha chi To receive at least one of the channel sensing pieces of information, including, Non-temporary computer-readable media.

Claims

1. A device that transmits at least one of resource reservation information or channel sensing information in sidelink communication, Memory for storing instructions, Execute the instruction stored in the memory, Receiving from at least one first user device (UE) the resource reservation information or the channel sensing information acquired by the at least one first UE, The storage of at least one of the resource reservation information or the channel sensing information, Transmitting at least one of the resource reservation information or the channel sensing information received to the second UE, A processor that executes, Equipped with, The aforementioned processor, When at least one first UE operates on a first RAT and the second UE operates on a second RAT, From the at least one first UE, the at least one of the resource reservation information or the channel sensing information is received through the first RAT. The resource reservation information or at least one of the channel sensing information is transmitted to the second UE through the second RAT. The second UE selects a resource based on at least one of the resource reservation information or the channel sensing information. Device.

2. The processor executes the instruction stored in the memory, Receiving a request from the second UE for at least one of the resource reservation information or the channel sensing information, In response to the aforementioned request, the resource reservation information or the channel sensing information Transmitting at least one of the reports to the second UE, Further execution, The request received from the second UE includes a request for at least one of the resource reservation information or the channel sensing information relating to one or more other UEs operating on different radio access technologies (RATs) that use resource pools that overlap with the resource pool used by the second UE, The apparatus according to claim 1.

3. The resource reservation information or the channel sensing information, at least one of which is used by the second UE to avoid sensing all or part of the resource pool by excluding one or more resources based on the resource reservation information or the channel sensing information, The apparatus according to claim 1.

4. At least one of the resource reservation information or the channel sensing information is obtained by performing channel sensing with the at least one first UE. The resource reservation information is obtained by the first UE based on the decoding of the side link control information (SCI) included in the side link signal. The apparatus according to claim 1.

5. At least one of the resource reservation information or the channel sensing information is obtained by performing channel sensing with the at least one first UE. The channel sensing information includes at least one of the received signal strength indicator (RSSI) or the reference signal received power (RSRP) of the sidelink signal. The apparatus according to claim 1.

6. The first UE includes a plurality of UEs, and at least one of the resource reservation information or the channel sensing information includes a plurality of datasets received from the plurality of UEs simultaneously or at different times with a time difference within a predetermined threshold. The processor executes the instruction stored in the memory, Mapping the physical location of each of the aforementioned multiple UEs to at least one of the following: cell identification information (ID), zone ID, or roadside unit (RSU) ID. Execute The apparatus according to claim 1.

7. The processor executes the instruction stored in the memory, Based on the mapping between the location of the second UE and the location of the first UE, the dataset corresponding to the second UE is determined. To further execute, The apparatus according to claim 1.

8. A user device (UE) that provides location information and at least one of resource reservation information or channel sensing information in sidelink communication, Memory for storing instructions, Execute the instruction stored in the memory, Perform a sidelink channel sensing operation to obtain at least one of the resource reservation information or the channel sensing information associated with the location information of the UE, The location information and at least one of the resource reservation information or channel sensing information are reported to the device in the sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to another UE. A processor that executes, Equipped with, The aforementioned device is When the aforementioned UE operates on the first RAT and the other UE operates on the second RAT, The UE receives at least one of the resource reservation information or the channel sensing information through the first RAT. The resource reservation information or at least one of the channel sensing information is transmitted to the other UE through the second RAT. The other UE selects a resource based on at least one of the resource reservation information or the channel sensing information. User equipment (UE).

9. The location information and at least one of the resource reservation information or channel sensing information are reported to the device periodically, or immediately when the UE has the location information and at least one of the resource reservation information or channel sensing information, based on the settings or pre-settings of the UE. The UE according to claim 8.

10. The location information and at least one of the resource reservation information or channel sensing information are reported to the device based on a trigger event that triggers the report. The trigger event is set by an RRC reset message, or by a MAC protocol control element, or as an instruction in a NAS protocol data unit, or is pre-configured in the UE. The UE according to claim 8.

11. The aforementioned UE operates on a Long-Term Evolution (LTE) network, The location information and at least one of the resource reservation information or channel sensing information are reported to the device using mobile-initiated early data transmission (MO-EDT) or pre-configured uplink resources (PUR). The UE according to claim 8.

12. The aforementioned UE operates on a new wireless (NR) network. The location information and at least one of the resource reservation information or channel sensing information are reported to the device using a Small Data Transmission (SDT) procedure. The UE according to claim 8.

13. A user device (UE) that acquires at least one of resource reservation information or channel sensing information in sidelink communication, Memory for storing instructions, Execute the instruction stored in the memory, Receiving from the device at least one of the resource reservation information or the channel sensing information that applies to other UEs but does not apply to the device, A processor that executes, Equipped with, The aforementioned device is When the aforementioned other UE operates on the first RAT and the aforementioned UE operates on the second RAT, From the other UE, at least one of the resource reservation information or the channel sensing information is received through the first RAT. At least one of the resource reservation information or the channel sensing information is transmitted to the UE through the second RAT. The UE selects a resource based on at least one of the resource reservation information or the channel sensing information. User equipment (UE).

14. The processor executes the instruction stored in the memory, To transmit a request to the device for at least one of the resource reservation information or the channel sensing information. Execute The UE according to claim 13.

15. The resource reservation information or the channel sensing information, at least one of which is used by the UE to avoid sensing all or part of the resource pool by excluding one or more resources based on the resource reservation information or the channel sensing information, The UE according to claim 13.

16. The processor executes the instruction stored in the memory, Based on the received resource reservation information or the channel sensing information, refrain from sensing a resource that is indicated to be used by another device. Execute The UE according to claim 13.

17. The request for at least one of the resource reservation information or the channel sensing information is sent at the end of the channel sensing window and before the start of the resource selection window. The processor executes the instruction stored in the memory, Integrating the received resource reservation information or at least one of the channel sensing information with the sensing information collected by the UE during the channel sensing window, Resource selection is performed by excluding at least one of the following from the resource selection window: one or more subframes resulting from unmonitored resources within the channel sensing window, one or more resources reserved by other UEs on the same RAT when the corresponding SL-RSRP exceeds the set or pre-configured SL-RSRP exclusion threshold, or resources reserved by other UEs on other RATs when the corresponding SL-RSRP exceeds the inter-RAT SL-RSRP exclusion threshold. Execute The UE according to claim 14.

18. A method for transferring at least one of resource reservation information or channel sensing information in sidelink communication, The device, Receiving from at least one first user device (UE) the resource reservation information or the channel sensing information acquired by the at least one first UE, The storage of at least one of the resource reservation information or the channel sensing information, Transmitting at least one of the resource reservation information or the channel sensing information received to the second UE, Includes, The aforementioned device is When at least one first UE operates on a first RAT and the second UE operates on a second RAT, From the at least one first UE, the at least one of the resource reservation information or the channel sensing information is received through the first RAT. The resource reservation information or at least one of the channel sensing information is transmitted to the second UE through the second RAT. The second UE selects a resource based on at least one of the resource reservation information or the channel sensing information. method.

19. A method for providing location information and at least one of resource reservation information or channel sensing information in sidelink communication, User equipment (UE) Perform a sidelink channel sensing operation to obtain at least one of the resource reservation information or the channel sensing information associated with the location information of the UE, Reporting the location information and at least one of the resource reservation information or channel sensing information to the device in the sidelink communication, enabling the device to provide the location information and at least one of the resource reservation information or channel sensing information to another UE, Includes, The aforementioned device is When the aforementioned UE operates on the first RAT and the other UE operates on the second RAT, The UE receives at least one of the resource reservation information or the channel sensing information through the first RAT. The resource reservation information or at least one of the channel sensing information is transmitted to the other UE through the second RAT. The other UE selects a resource based on at least one of the resource reservation information or the channel sensing information. method.

20. A method for obtaining at least one of resource reservation information or channel sensing information from a device in a communication network, User equipment (UE) Receiving from the aforementioned device at least one of the resource reservation information or the channel sensing information that is applicable to other UEs but not to the aforementioned device, Includes, The aforementioned device is When the other UE operates on the first RAT and the UE operates on the second RAT 、 From the other UE, at least one of the resource reservation information or the channel sensing information is received through the first RAT. At least one of the resource reservation information or the channel sensing information is transmitted to the UE through the second RAT. The UE selects a resource based on at least one of the resource reservation information or the channel sensing information. method.

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