Communicating with respect to sidelink resource availability without legacy user equipment interference

Abstract

Communicating with respect to sidelink resource availability without legacy user equipment interference is disclosed. Aspects of the present disclosure generally relate to wireless communications. In some aspects, a first user equipment (UE) may identify a set of resources for exchanging resource availability information associated with a sidelink channel with a second UE. The set of resources is not allocated to legacy UEs. Accordingly, the first UE may use the set of resources to exchange the resource availability information associated with the sidelink channel with a second UE. Alternatively, the legacy UE may receive a communication from a second UE on a sidelink channel and determine that the communication is associated with the resource availability information for the sidelink channel. Accordingly, the first UE may drop the communication based at least in part on the communication being associated with the resource availability information for the sidelink channel. Numerous other aspects are provided.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202180058465.0 (International Application No. PCT / US2021 / 071134), filed on August 6, 2021, entitled "Communication regarding sidelink resource availability without interference from legacy user equipment".

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 706,295, filed August 7, 2020, entitled “COMMUNICATING ABOUT SIDELINK RESOURCE AVAILABILITY WITHOUT LEGACY USER EQUIPMENT INTERFERENCE,” and U.S. Non-Provisional Patent Application No. 17 / 444,528, filed August 5, 2021, entitled “COMMUNICATING ABOUT SIDELINK RESOURCE AVAILABILITY WITHOUT LEGACY USER EQUIPMENT INTERFERENCE,” which are hereby expressly incorporated by reference. Technical Field

[0003] Various aspects of this disclosure generally relate to wireless communications and techniques and apparatus for communicating about sidelink resource availability without interference from legacy user equipment. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more base stations that support communication for one or more user equipment (UEs). UEs may communicate with base stations via downlink and uplink communication. "Downlink" (or "DL") refers to the communication link from the base station to the UE, while "uplink" (or "UL") refers to the communication link from the UE to the base station.

[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different UEs to communicate at the city, country, region, and / or global levels. New Radio (NR) (which may be referred to as 5G) is an enhancement set to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband Internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink, CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow. Summary of the Invention

[0007] Some aspects described herein relate to a wireless communication method performed by a first user equipment (UE). The method may include: identifying a resource set for exchanging resource availability information associated with a sidelink channel with a second UE, wherein the resource set is not allocated to a legacy UE. The method may further include: using the resource set to exchange the resource availability information associated with the sidelink channel with the second UE.

[0008] Some aspects described herein relate to a wireless communication method performed by a first UE. The method may include: transmitting to a second UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel. The method may further include: receiving the resource availability information associated with the sidelink channel from the second UE, at least in part based on the request. The method may include: using one or more resources determined at least in part based on the resource availability information to transmit communication to a third UE on the sidelink channel.

[0009] Some aspects described herein relate to a wireless communication method performed by a first UE. The method may include: receiving from a second UE a request for resource availability information associated with a sidelink channel. The method may further include: transmitting, at least in part, the resource availability information associated with the sidelink channel to the second UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0010] Some aspects described herein relate to a wireless communication method performed by a first UE. The method may include: receiving communication from a second UE on a sidelink channel. The method may further include: determining that the communication is associated with resource availability information of the sidelink channel. The method may include: discarding the communication, at least in part, based on the association of the communication with the resource availability information of the sidelink channel.

[0011] Some aspects described herein relate to a wireless communication method performed by a first UE. The method may include: encoding sidelink control information (SCI) associated with communication for a second UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE. The method may further include: transmitting the SCI to the legacy UE.

[0012] Some aspects described herein relate to an apparatus for wireless communication at a first UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: identify a resource set for exchanging resource availability information associated with a sidelink channel with a second UE, wherein the resource set is not allocated to a legacy UE. The one or more processors may be further configured to: use the resource set to exchange the resource availability information associated with the sidelink channel with the second UE.

[0013] Some aspects described herein relate to an apparatus for wireless communication at a first UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: transmit to a second UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel. The one or more processors may be further configured to: receive the resource availability information associated with the sidelink channel from the second UE, at least in part, based on the request. The one or more processors may be configured to: transmit communication to a third UE on the sidelink channel using one or more resources determined at least in part based on the resource availability information.

[0014] Some aspects described herein relate to an apparatus for wireless communication at a first UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive from a second UE a request for resource availability information associated with a sidelink channel. The one or more processors may be further configured to transmit, at least in part, the resource availability information associated with the sidelink channel to the second UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0015] Some aspects described herein relate to an apparatus for wireless communication at a first UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive communication from a second UE on a sidelink channel. The one or more processors may be further configured to determine that the communication is associated with resource availability information of the sidelink channel. The one or more processors may be configured to discard the communication, at least in part, based on the association of the communication with the resource availability information of the sidelink channel.

[0016] Some aspects described herein relate to an apparatus for wireless communication at a first UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: encode a Service Message Interface (SCI) associated with communication for a second UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE. The one or more processors may be further configured to: transmit the SCI to the legacy UE.

[0017] Some aspects described herein relate to a non-transient computer-readable medium storing a set of instructions for wireless communication by a first UE. When executed by one or more processors of the first UE, the set of instructions enables the first UE to identify a resource set for exchanging resource availability information associated with a sidelink channel with a second UE, wherein the resource set is not allocated to a legacy UE. When executed by one or more processors of the first UE, the set of instructions further enables the first UE to use the resource set to exchange the resource availability information associated with the sidelink channel with the second UE.

[0018] Some aspects described herein relate to a non-transient computer-readable medium storing a set of instructions for wireless communication by a first UE. When executed by one or more processors of the first UE, the set of instructions can cause the first UE to transmit to a second UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel. When executed by one or more processors of the first UE, the set of instructions can further cause the first UE to receive the resource availability information associated with the sidelink channel from the second UE, at least in part, based on the request. When executed by one or more processors of the first UE, the set of instructions can cause the first UE to use one or more resources, determined at least in part based on the resource availability information, to transmit communication to a third UE on the sidelink channel.

[0019] Some aspects described herein relate to a non-transient computer-readable medium storing a set of instructions for wireless communication by a first UE. When executed by one or more processors of the first UE, the set of instructions enables the first UE to receive from a second UE a request for resource availability information associated with a sidelink channel. When executed by one or more processors of the first UE, the set of instructions further enables the first UE to transmit, at least in part, the resource availability information associated with the sidelink channel to the second UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0020] Some aspects described herein relate to a non-transient computer-readable medium storing a set of instructions for wireless communication by a first UE. When executed by one or more processors of the first UE, the set of instructions enables the first UE to receive communication from a second UE on a sidelink channel. When executed by one or more processors of the first UE, the set of instructions further enables the first UE to determine that the communication is associated with resource availability information of the sidelink channel. When executed by one or more processors of the first UE, the set of instructions enables the first UE to discard the communication, at least in part, based on the association of the communication with the resource availability information of the sidelink channel.

[0021] Some aspects described herein relate to a non-transient computer-readable medium storing a set of instructions for wireless communication by a first UE. When executed by one or more processors of the first UE, the set of instructions can cause the first UE to encode a Special Information Code (SCI) associated with communication for a second UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE. When executed by one or more processors of the first UE, the set of instructions can further cause the first UE to transmit the SCI to the legacy UE.

[0022] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for identifying a resource set for exchanging resource availability information associated with a sidelink channel with a UE, wherein the resource set is not allocated to a legacy UE. The apparatus may further include: means for using the resource set to exchange the resource availability information associated with the sidelink channel with the UE.

[0023] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for transmitting to a first UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel. The apparatus may further include: means for receiving, at least in part, the resource availability information associated with the sidelink channel from the first UE based on the request. The apparatus may also include: means for transmitting communication to a second UE on the sidelink channel using one or more resources determined at least in part based on the resource availability information.

[0024] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving from a UE a request for resource availability information associated with a sidelink channel. The apparatus may further include means for transmitting, at least in part, the resource availability information associated with the sidelink channel to the UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0025] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving communication from a UE on a sidelink channel. The apparatus may further include means for determining that the communication is associated with resource availability information of the sidelink channel. The apparatus may include means for discarding the communication, at least in part, based on the association of the communication with the resource availability information of the sidelink channel.

[0026] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for encoding a Special Information Code (SCI) associated with communication for a UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE. The apparatus may further include: means for transmitting the SCI to the legacy UE.

[0027] The aspects generally include, as substantially described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transient computer-readable media, user equipment, base stations, wireless communication equipment, and / or processing systems.

[0028] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described thereafter. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims.

[0029] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects may be implemented via integrated chip embodiments or other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user devices of various sizes, shapes, and configurations. Attached Figure Description

[0030] To gain a more detailed understanding of the features described above in this disclosure, reference can be made to various aspects of the above brief overview, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0031] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0032] Figure 2 This is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to this disclosure.

[0033] Figure 3 This is a diagram illustrating an example of sidelink communication according to this disclosure.

[0034] Figure 4 This is a diagram illustrating examples of sidelink communication and access link communication according to this disclosure.

[0035] Figure 5 This is a diagram illustrating an example of coordinated signaling according to this disclosure.

[0036] Figure 6 This is a diagram illustrating an example of resource sniffing for coordination between sidelink UEs according to this disclosure.

[0037] Figure 7 This is a diagram illustrating an example of resource allocation associated with communication regarding the availability of sidelink resources according to this disclosure.

[0038] Figure 8 This is a diagram illustrating an example of how, according to this disclosure, priority communication is associated with a legacy UE avoiding the availability of sidelink resources.

[0039] Figure 9 This is a diagram illustrating an example of a legacy UE associated with the dropping of communications regarding the availability of sidelink resources, according to this disclosure.

[0040] Figure 10 , 11 Figures 12, 13, and 14 are illustrations of an example process relating to communication regarding the availability of sidelink resources in the absence of interference from legacy UEs, according to this disclosure.

[0041] Figure 15 and 16 This is a block diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0042] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0043] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0044] While the aspects herein may be described using terms commonly associated with 5G or New Radio (NR) Radio Access Technology (RAT), the aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0045] Figure 1This is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE) network) network, or may include elements thereof. The wireless network 100 may include one or more base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d), one or more user equipment (UEs) (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. Base station 110 is the entity that communicates with UE 120. Base station 110 (sometimes referred to as BS) may include, for example, an NR base station, an LTE base station, a B-node, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmit / receive point (TRP). Each base station 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​base station 110 and / or the base station subsystem serving that coverage area, depending on the context in which the term is used.

[0046] Base station 110 provides communication coverage to macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UE 120 with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UE 120 with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UE 120 associated with that femtocell (e.g., UE 120 in a closed subscriber group (CSG)). Base station 110 for macrocells may be referred to as a macro base station. Base station 110 for picocells may be referred to as a pico base station. Base station 110 for femtocells may be referred to as a femtocell base station or a home base station. Figure 1 In the example shown, BS 110a can be a macro base station for macro cell 102a, BS 110b can be a pico base station for pico cell 102b, and BS 110c can be a femto base station (BS) for femtocell 102c. A base station may support one or more (e.g., three) cells.

[0047] In some examples, the cell may not necessarily be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile base station 110 (e.g., a mobile base station). In some examples, base stations 110 may interconnect with each other and / or interconnect to one or more other base stations 110 or network nodes (not shown) in the wireless network 100 using any suitable transport network via various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0048] Wireless network 100 may include one or more relay stations. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., base station 110 or UE 120) and transmitting those data transmissions to a downstream station (e.g., UE 120 or base station 110). A relay station may be a UE 120 capable of relaying transmissions for other UE 120s. Figure 1 In the example shown, BS 110d (e.g., a relay base station) can communicate with BS 110a (e.g., a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120d. The base station 110 for relay communication may be referred to as a relay station, relay base station, relay, etc.

[0049] Wireless network 100 can be a heterogeneous network comprising different types of base stations 110 (such as macro base stations, pico base stations, femto base stations, or relay base stations, etc.). These different types of base stations 110 may have different transmit power levels, different coverage areas, and / or different effects on interference in wireless network 100. For example, macro base stations may have high transmit power levels (e.g., 5 to 40 watts), while pico base stations, femto base stations, and relay base stations may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0050] Network controller 130 can be coupled to or communicate with a group of base stations 110 and can provide coordination and control over these base stations 110. Network controller 130 can communicate with base stations 110 via backhaul communication links. Base stations 110 can communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0051] Each UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, or any other suitable device configured to communicate via a wireless medium.

[0052] Some UEs 120 may be considered Machine-Type Communication (MTC) UEs, or evolved or enhanced Machine-Type Communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which can communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered client equipment. UE 120 may be included within a housing that houses the components of UE 120, such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0053] Generally, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0054] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as performed by base station 110.

[0055] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., according to frequency or wavelength. For example, each device in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency ranges FR1 (410 MHz – 7.125 GHz) and FR2 (24.25 GHz – 52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is generally (interchangeably) referred to as the “sub-6 GHz” band in various documents and articles. Similar naming issues sometimes arise regarding FR2; although different from the Very High Frequency (EHF) band (30 GHz – 300 GHz) designated as the “millimeter wave” band by the International Telecommunication Union (ITU), FR2 is generally (interchangeably) referred to as the “millimeter wave” band in various documents and articles.

[0056] The frequencies between FR1 and FR2 are generally referred to as intermediate frequency (IF) bands. Recent 5G NR studies have identified the operating bands of these IF bands as the frequency range designation FR3 (7.125 GHz – 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 into the IF band. Additionally, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating frequency bands have been identified as the frequency range designations FR4a or FR4-1 (52.6 GHz – 71 GHz), FR4 (52.6 GHz – 114.25 GHz), and FR5 (114.25 GHz – 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0057] Considering the examples above, unless otherwise stated, it should be understood that, as used herein, the term "sub-6GHz," etc., can broadly refer to frequencies less than 6 GHz, within FR1, or that may include intermediate frequency band frequencies. Furthermore, unless otherwise stated, it should be understood that, as used herein, the term "millimeter wave," etc., can broadly refer to frequencies that may include intermediate frequency band frequencies, within FR2, FR4, FR4-a, or FR4-1 or FR5, or within the EHF band. It is conceivable that the frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0058] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0059] Figure 2 This is a diagram illustrating an example 200 of communication between base station 110 and UE 120 in a wireless network 100 according to this disclosure. Base station 110 may be equipped with a set of antennas 234a to 234t, such as... T One antenna ( T≥1 The UE 120 can be equipped with a set of antennas 252a to 252r, such as... R One antenna ( R≥1 ).

[0060] At base station 110, transmit processor 220 can receive data from data source 212 intended for UE 120 (or a group of UEs 120). Transmit processor 220 can select one or more modulation and coding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. UE 120 can process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120 and can provide data symbols to UE 120. Transmit processor 220 can process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or higher-layer signaling) and provide overhead symbols and control symbols. Transmit processor 220 can generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulated reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). Transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can output a set of symbol streams (e.g., ... T Each output symbol stream is provided to the corresponding modem 232 set (e.g., ...). T Each modem 232a to 232t can be provided to a modulator component (shown as MOD) of modem 232. Each modem 232 can use a corresponding modular component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can further use a corresponding modular component to process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream to obtain a downlink signal. Modems 232a to 232t can be connected via a corresponding set of antennas 234 (e.g., T Each antenna (shown as antennas 234a to 234t) is used to transmit downlink signal sets (e.g., T (One downlink signal).

[0061] At UE 120, the antenna set 252 (shown as antennas 252a to 252r) can receive downlink signals from base station 110 and / or other base stations 110 and can provide the received signal set (e.g., R (received signal) to modem 254 set (e.g., REach modem 254 (shown as modems 254a to 254r) may be used. For example, each received signal may be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 may use a demodulator component to further process the input sample (e.g., for OFDM) to obtain received symbols. MIMO detector 256 may obtain the received symbols from modem 254, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 may process (e.g., demodulate and decode) these detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some examples, one or more components of the UE120 may be included in the housing 284.

[0062] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in the core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0063] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more antenna element assemblies, and / or one or more antenna arrays. Antenna panels, antenna groups, antenna element assemblies, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), coplanar antenna element assemblies, non-coplanar antenna element assemblies, and / or one or more antenna elements coupled to one or more transmit and / or receive components, such as... Figure 2 One or more components.

[0064] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can generate reference symbols for one or more reference signals. Symbols from transmit processor 264 may be pre-encoded by TX MIMO processor 266 where applicable, further processed by modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some examples, modem 254 of UE 120 may include modulator and demodulator. In some examples, UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modems 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver can be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., reference). Figure 5-16 ).

[0065] At base station 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232, shown as DEMOD), detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and may communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of base station 110 may include modulator and demodulator. In some examples, base station 110 includes transceiver. The transceiver may include any combination of antennas 234, modems 232, MIMO detectors 236, receiver processors 238, transmitter processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., references). Figure 5-16 ).

[0066] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2Any other component may perform one or more techniques associated with communication regarding the availability of sidelink resources in the absence of interference from legacy UEs, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component of (such as) can execute or direct, for example Figure 10 Process 1000 Figure 11 Process 1100 Figure 12 Process 1200 Figure 13 Process 1300 Figure 14 The operation of process 1400 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code for base station 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly executed, or executed after compilation, transformation, and / or interpretation), the one or more processors, UE 120, and / or base station 110 may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 11 Process 1100 Figure 12 Process 1200 Figure 13 Process 1300 Figure 14 The process 1400, and / or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions, and / or interpret instructions, etc.

[0067] In some respects, the first UE (e.g., UE 120 and / or Figure 15 The apparatus 1500 may include: means for identifying a resource set for exchanging resource availability information associated with a sidelink channel with the second UE, wherein the resource set is not allocated to a legacy UE; and / or means for using the resource set to exchange the resource availability information associated with the sidelink channel with the second UE. The means for the first UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0068] In some respects, the first UE (e.g., UE 120 and / or Figure 15The apparatus 1500 may include: means for transmitting to a second UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel; means for receiving, at least in part, the resource availability information associated with the sidelink channel from the second UE based on the request; and / or means for transmitting communication to a third UE on the sidelink channel using one or more resources determined at least in part based on the resource availability information. The means for the first UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0069] In some respects, the first UE (e.g., UE 120 and / or Figure 15 The apparatus 1500 may include: means for receiving from the second UE a request for resource availability information associated with a sidelink channel; and / or means for transmitting, at least in part, the resource availability information associated with the sidelink channel to the second UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel. Means for the first UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0070] In some respects, the first UE (e.g., UE 120 and / or Figure 15 The apparatus 1500 may include: means for receiving communication from a second UE on a sidelink channel; means for determining that the communication is associated with resource availability information of the sidelink channel; and / or means for discarding the communication at least in part based on the association of the communication with resource availability information of the sidelink channel. The means for the first UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0071] In some respects, the first UE (e.g., UE 120 and / or Figure 15The apparatus 1500 may include: means for encoding sidelink control information (SCI) associated with communication for a second UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE; and / or means for transmitting the SCI to the legacy UE. The means for enabling the first UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0072] although Figure 2 The boxes in the diagram are interpreted as different components, but the functions described above with respect to these boxes can be implemented by a single hardware component, software component, or combination of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280 or under the control of controller / processor 280.

[0073] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0074] Figure 3 This is a diagram illustrating example 300 of sidelink communication according to this disclosure. For example... Figure 3 As shown, the first UE 305-1 can communicate with the second UE 305-2 (and one or more other UEs 305) via one or more sidelink channels 310. UEs 305-1 and 305-2 can use the one or more sidelink channels 310 to communicate for P2P communication, D2D communication, V2X communication (e.g., which may include V2V communication, V2I communication, and / or V2P communication) and / or mesh networking. In some aspects, UEs 305 (e.g., UEs 305-1 and / or UEs 305-2) may correspond to one or more other UEs described elsewhere herein, such as UE 120. In some aspects, the one or more sidelink channels 310 may use a PC5 interface and / or operate in a high-frequency band (e.g., the 5.9 GHz band). Additionally or alternatively, UEs 305 may use Global Navigation Satellite System (GNSS) timing to synchronize the timing of transmission time intervals (TTIs) (e.g., frames, subframes, time slots, or symbols).

[0075] As in Figure 3As further illustrated, the one or more sidelink channels 310 may include a Physical Sidelink Control Channel (PSCCH) 315, a Physical Sidelink Shared Channel (PSSCH) 320, and / or a Physical Sidelink Feedback Channel (PSFCH) 325. PSCCH 315 may be used to convey control information, similar to a Physical Downlink Control Channel (PDCCH) and / or a Physical Uplink Control Channel (PUCCH) for cellular communication with base station 110 via an access link or access channel. PSSCH 320 may be used to convey data, similar to a Physical Downlink Shared Channel (PDSCH) and / or a Physical Uplink Shared Channel (PUSCH) for cellular communication with base station 110 via an access link or access channel. For example, PSCCH 315 may carry an SCI 330, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, and / or spatial resources), wherein a transport block (TB) 335 may be carried on PSSCH 320. TB 335 may include data. PSFCH 325 can be used to communicate sidelink feedback 340, such as Hybrid Automatic Repeat Request (HARQ) feedback (e.g., ACK / NACK information), Transmit Power Control (TPC), and / or Scheduling Request (SR).

[0076] Although shown on PSCCH 315, SCI 330 may, in some respects, include multiple communications in different phases, such as a first-phase SCI (SCI-1) and a second-phase SCI (SCI-2). SCI-1 may be transmitted on PSCCH 315. SCI-2 may be transmitted on PSSCH 320. SCI-1 may include, for example, indications of one or more resources on PSSCH 320 (e.g., time resources, frequency resources, and / or spatial resources), information for decoding sidelink communications on PSSCH, Quality of Service (QoS) priority values, resource reservation periods, PSSCH DMRS modes, SCI format of SCI-2, β offset of SCI-2, number of PSSCH DMRS ports, and / or MCS. SCI-2 may include information associated with data transmission on PSSCH 320, such as HARQ processing ID, New Data Indicator (NDI), source identifier, destination identifier, and / or Channel State Information (CSI) report triggering.

[0077] In some aspects, one or more sidelink channels 310 may use resource pools. For example, specific resource blocks (RBs) may be used across time to transmit scheduling assignments in subchannels (e.g., included in SCI 330). In some aspects, data transmissions associated with scheduling assignments (e.g., on PSSCH 320) may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, scheduling assignments and associated data transmissions are not transmitted on adjacent RBs.

[0078] In some aspects, UE 305 may operate using a transmission mode in which resource selection and / or scheduling is performed by UE 305 (e.g., instead of base station 110). In some aspects, UE 305 may perform resource selection and / or scheduling by sensing channel availability for transmission. For example, UE 305 may measure RSSI parameters (e.g., sidelink-RSSI (S-RSSI) parameters) associated with various sidelink channels; may measure RSRP parameters (e.g., PSSCH-RSRP parameters) associated with various sidelink channels; and / or may measure RSRQ parameters (e.g., PSSCH-RSRQ parameters) associated with various sidelink channels; and may select channels for transmitting sidelink communication based at least in part on (these) measurements.

[0079] Alternatively or additionally, UE 305 may use SCI 330 received in PSCCH 315 (which may indicate the occupied resources and / or channel parameters) to perform resource selection and / or scheduling. Alternatively or additionally, UE 305 may perform resource selection and / or scheduling by determining the Channel Busy Rate (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating the maximum number of resource blocks available to UE 305 for a particular subframe set).

[0080] In a transport mode where resource selection and / or scheduling is performed by UE 305, UE 305 may generate sidelink grants, and these grants may be transmitted in SCI 330. Sidelink grants may indicate one or more parameters (e.g., transport parameters) to be used for an upcoming sidelink transport, such as one or more resource blocks (e.g., for TB 335) to be used for an upcoming sidelink transport on PSSCH 320, one or more subframes to be used for an upcoming sidelink transport, and / or the MCS to be used for an upcoming sidelink transport. In some aspects, UE 305 may generate sidelink grants indicating one or more parameters for semi-persistent scheduling (SPS), such as the periodicity of the sidelink transport. Additionally or alternatively, UE 305 may generate sidelink grants for event-driven scheduling (such as for on-demand sidelink messages).

[0081] As indicated above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0082] Figure 4 This is a diagram illustrating example 400 of sidelink communication and access link communication according to this disclosure. For example... Figure 4 As shown, the transmitting (Tx) / receiving (Rx) UE 405 and the Rx / Tx UE 410 can communicate with each other via a side link, as described above. Figure 3 As further illustrated, in some sidelink modes, base station 110 may communicate with Tx / Rx UE 405 via a first access link. Additionally or alternatively, in some sidelink modes, base station 110 may communicate with Rx / Tx UE 410 via a second access link. Tx / Rx UE 405 and / or Rx / Tx UE 410 may correspond to one or more UEs described elsewhere herein, such as... Figure 1 UE 120. Therefore, the direct link between UE 120 (e.g., via the PC5 interface) can be referred to as a side link, and the direct link between base station 110 and UE 120 (e.g., via the Uu interface) can be referred to as an access link. Side link communication can be transmitted via the side link, and access link communication can be transmitted via the access link. Access link communication can be downlink communication (from base station 110 to UE 120) or uplink communication (from UE 120 to base station 110).

[0083] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0084] Figure 5This is a diagram illustrating example 500 of the coordination signaling according to this disclosure. As shown by reference numeral 505, a first UE 120a and a second UE 120e exchange inter-UE coordination signaling. The first UE and the second UE can operate in in-coverage mode, partial coverage mode, and / or out-of-coverage mode. For example, the first UE 120a can determine a set of sidelink resources available for resource allocation. The first UE 120a can determine the sidelink resource set at least in part based on determining to select the sidelink resource set, or at least in part based on a request (referred to herein as an inter-UE coordination request) received from the second UE 120e or a base station (e.g., base station 110). In some aspects, the first UE 120a can determine the sidelink resource set at least in part based on a listening operation, which can be performed before or after receiving the inter-UE coordination request. The first UE 120a can transmit the available resource set to the second UE 120e via inter-UE coordination signaling (also referred to as a coordination message or coordination report). The first UE 120a can use NR sidelink resource allocation mode 2 to transmit the available resource set. In NR sidelink resource allocation mode 2, resource allocation is handled by the UE (for example, compared to NR sidelink resource allocation mode 1, in which resource allocation is handled by a scheduling entity (such as base station 110)).

[0085] The second UE 120e can select sidelink resources for transmissions from the first UE 120a based at least in part on the set of available resources received from the first UE 120a. As shown by reference numeral 510, the second UE can perform transmissions that take into account coordination information (e.g., via sidelink resources indicated in a coordination report). Inter-UE coordination signaling related to resource allocation can reduce conflicts between the first and second UEs. Inter-UE coordination signaling related to resource allocation can reduce power consumption of the first and / or second UEs.

[0086] As indicated above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0087] Figure 6 This is a diagram illustrating example 600 of resource sensing for side-link inter-UE coordination according to this disclosure. (See diagram for example...) Figure 6As shown, during the listening window 605, UE A (which may correspond to, for example, UE 120a) can coordinate with other UEs (such as UE B (which may correspond to, for example, UE 120e) and UE C). For example, UE B and / or UE C may request UE A's assistance in determining whether resources are available for communication. In another example, UE A may receive a request from a base station (e.g., base station 110) or a relay device (e.g., a relay BS) to assist in inter-UE coordination. In yet another example, UE A may autonomously determine whether to transmit a coordination report, for example, based at least in part on observed network conditions.

[0088] UE A can monitor resource availability during listening window 605. UE A can detect inter-UE coordination requests from, for example, UE B (as shown by reference numeral 610a), UE C (as shown by reference numeral 610b), and / or one or more other UEs (as shown by reference numerals 610c and 610d). As shown, UE A may experience a processing delay between when UE A detects a request for resources and when UE A has processed the request and been triggered to transmit a coordination report indicating whether the resource is available. In some respects, UE A can determine whether to transmit a coordination report (e.g., in the absence of an inter-UE coordination request).

[0089] As indicated by reference numeral 615, UE A may transmit one or more reports regarding whether resources are available to UE B, UE C, and / or one or more other UEs. This report may be referred to as a transmission coordination report or an inter-UE coordination report. The transmission of the report may occur before selection window 620 (e.g., based on a processing time threshold), during which UE A, UE B, UE C, and one or more other UEs may use resources identified as available by UE A. As shown, UE A identifies one or more resources as available to UE B and UE C, and identifies other resources as unavailable.

[0090] As indicated above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0091] Inter-UE coordination enables a first UE to perform resource selection to facilitate sidelink communication by a second UE. For example, the second UE (or base station) may transmit an inter-UE coordination request that causes the first UE to perform inter-UE coordination. Accordingly, the first UE may identify a set of resources in a selection window based at least in part on receiving the inter-UE coordination request and at least in part on a listening operation, and may transmit a coordination report indicating that resource set to the second UE. The second UE may select at least one resource from the resource set and may communicate on the selected resources.

[0092] Sometimes, conflicts can occur between inter-UE coordination traffic (e.g., inter-UE coordination requests or reports) and another communication. This other communication could include sidelink communication or communication on the Uu interface (e.g., uplink or downlink communication). In some cases, inter-UE coordination communication may conflict with sidelink communication from legacy UEs. As used herein, "legacy UE" can refer to a UE that supports one or more earlier versions of standards (e.g., 3GPP specifications and / or earlier versions of another standard) relative to another UE and / or a UE that uses older hardware and / or software relative to another UE. Therefore, the reliability and / or quality of inter-UE coordination communication are reduced due to conflicts with sidelink communication from legacy UEs. Additionally, legacy UEs waste processing resources attempting to decode inter-UE coordination communication that they cannot interpret and that are not programmed or otherwise configured to respond to.

[0093] The techniques and apparatus described herein prevent conflicts between UE cooperative communications (e.g., coordination requests from a first UE 120a or coordination reports from a second UE 120b) and sidelink communications from legacy UEs (e.g., UE 120c). Therefore, by avoiding conflicts between UE cooperative communications and sidelink communications from legacy UEs, the reliability and / or quality of UE cooperative communications are improved, thereby saving computational and communication resources. Additionally, in some aspects, the techniques and apparatus described herein allow legacy UEs to determine when sidelink communications are UE cooperative communications and suppress attempts to decode those UE cooperative communications. Therefore, legacy UEs save processing resources by suppressing attempts to decode UE coordination communications that the legacy UE cannot interpret and that the legacy UE is not programmed or otherwise configured to respond to.

[0094] Figure 7 This is a diagram illustrating example 700 related to resource allocation for communication regarding sidelink resource availability according to this disclosure. Figure 7As shown, Example 700 includes a sidelink resource pool 710. Resources may include frequency resources, such as one or more frequencies; time resources, such as one or more subframes, time slots and / or symbols; and / or spatial resources, such as one or more Transmission Configuration Indicator (TCI) states (e.g., which may define one or more beams).

[0095] In some respects, pool 710 can be allocated to multiple UEs (e.g., first UE 120a, second UE 120b, legacy UE 120c, and / or another UE) for use on one or more sidelink channels (e.g., as combined). Figure 3-4 (As described). Additionally, pool 710 may include a resource set 705 used for sidelink communication and a resource set 715 used for inter-UE coordination. Accordingly, in some aspects, resource set 705 may be shared among multiple UEs, and resource set 715 may not be allocated to legacy UEs. In some aspects, the base station (e.g., base station 110) may perform allocation (e.g., using Radio Resource Control (RRC) signaling). Additionally or alternatively, allocation may be pre-configured (e.g., according to 3GPP specifications and / or another standard). Accordingly, multiple UEs may be programmed and / or otherwise pre-configured to use resource set 705, and non-legacy UEs among the multiple UEs may be further programmed and / or otherwise pre-configured to use resource set 705.

[0096] In some respects, the first UE 120a and the second UE 120b can be identified for use in switching with sidelink channels (e.g., in combination). Figure 3 The resource set 715 associated with the described channel 310 is not allocated to the legacy UE 120c. Accordingly, the first UE 120a and the second UE 120b can use the resource set 715 to exchange resource availability information associated with the sidelink channel.

[0097] In some aspects, the first UE 120a may request inter-UE coordination, and the second UE 120b may report at least in part based on this request. Accordingly, the first UE 120a may use resource set 715 to transmit, and the second UE 120b may use resource set 715 to receive, requests for resource availability information associated with the sidelink channel. In some aspects, the first UE 120a may use SCI to schedule the request. For example, the first UE 120a may use SCI-1 to reserve at least a portion of resource set 715 and schedule the request within the reserved portion. In some aspects, the request may include an inter-UE coordination request (e.g., as combined with...). Figure 5 (as described).

[0098] The second UE 120b may further use resource set 715 to transmit, and the first UE 120a may use resource set 715 to receive resource availability information associated with the sidelink channel. In some aspects, the second UE 120b may transmit resource availability information at least in part based on a request from the first UE 120a. The second UE 120b may perform a listening operation (e.g., as in conjunction with...). Figure 6 (As described) so as to generate a report including resource availability information. Accordingly, the second UE 120b can transmit the resource availability information in the inter-UE coordination report, and the first UE 120a can receive the resource availability information.

[0099] The first UE 120a may further use one or more resources determined at least in part based on resource availability information to transmit communication (e.g., as in combination) to another UE (e.g., the third UE 120d and / or another UE) on a sidelink channel. Figure 3 (As described). For example, the first UE 120a can identify one or more resources, such as in combination with Figures 5 to 6 As described. In some aspects, the first UE 120a may select one or more resources from the resource set 705 shared with the legacy UE 120c. In some aspects, the first UE 120a may use SCI to schedule the communication. For example, the first UE 120a may use SCI-2 to reserve at least a portion of the resource set 705 and schedule the sidelink communication within the reserved portion.

[0100] By using combination Figure 7 The described technique allows the first UE 120a to avoid conflicts between inter-UE coordination reports and sidelink communications from legacy UE 120c. Additionally, the second UE 120b avoids conflicts between inter-UE coordination requests and sidelink communications from legacy UE 120c. Accordingly, the first UE 120a and the second UE 120b experience improved reliability and / or quality of inter-UE cooperative communication. Additionally, the legacy UE 120c avoids receiving inter-UE coordination requests and / or reports. Accordingly, the legacy UE 120c saves processing resources by not attempting to decode inter-UE coordination communications that it cannot interpret and that is not programmed or otherwise configured to respond to.

[0101] As indicated above, Figure 7 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0102] Figure 8 This is a diagram illustrating example 800 of avoiding priority communication regarding sidelink resource availability in a legacy UE according to this disclosure. Figure 8 As shown, Example 800 includes sidelink communication between UE 120a, UE 120b, and UE 120c. In some aspects, UE 120a, UE 120b, and UE 120c may be included in a wireless network (such as wireless network 100). UE 120a, UE 120b, and UE 120c may communicate in a sidelink channel (e.g., as combined with...) Figure 3 Communication takes place on the described channel 310. In some respects, UE 120c may be a legacy UE relative to the first UE 120a and the second UE 120b.

[0103] As shown in conjunction with reference numeral 805, the second UE 120b can transmit and the first UE 120a can receive requests for resource availability information associated with the sidelink channel. In some aspects, this request can be associated with a higher priority than other data transmitted on the sidelink channel. For example, the second UE 120b can encode the request with a highest priority indicator.

[0104] In some respects, the second UE 120b may use an SCI to schedule the request. For example, the second UE 120b may use SCI-1 to reserve resources and schedule the request within the reserved resources. In some respects, the SCI may include a priority indicator, as described above.

[0105] Accordingly, the second UE 120b may reserve the resources used by the second UE 120b to transmit the request and the first UE 120a to receive the request. Additionally or alternatively, the base station (e.g., base station 110) and / or another UE (e.g., the third UE 120d) may have already reserved the resources used by the second UE 120b to transmit the request and the first UE 120a to receive the request. For example, base station 110 may have been allocated a resource set from which the second UE 120b selects the resources used by the second UE 120b to transmit the request and the first UE 120a to receive the request. Similarly, the third UE 120d may have reserved (e.g., using SCI-1) a resource set from which the second UE 120b selects the resources used by the second UE 120b to transmit the request and the first UE 120a to receive the request. As another example, base station 110 may have been allocated a resource set, from which third UE 120d reserves a subset of resources (e.g., using SCI-1). Accordingly, second UE 120b can select from this resource subset the resources that second UE 120b uses to transmit a request and that first UE 120a uses to receive the request.

[0106] In any of the aspects described above, the second UE 120b may contend (e.g., with the third UE 120d) for resources that the second UE 120b uses to transmit a request and that the first UE 120a uses to receive the request. For example, the Media Access Control (MAC) layer of the second UE 120b may contend for those resources with the MAC layers of other UEs on the sidelink channel.

[0107] As shown in conjunction with reference to reference numeral 810 in the accompanying drawings, the first UE 120a may transmit resource availability information associated with the sidelink channel based at least in part on the request, and the second UE 120b may receive the resource availability information based at least in part on the request. As a supplement or alternative to the request, the resource availability information may be associated with a higher priority than other data transmitted on the sidelink channel. For example, the first UE 120a may encode the resource availability information using a highest priority indicator.

[0108] In some respects, the first UE 120a can use the SCI to schedule this resource availability information. Accordingly, the SCI may include priority indicators, as described above.

[0109] In some respects, the first UE 120a may reserve resources used by the first UE 120a to transmit resource availability information and by the second UE 120b to receive such resource availability information. Additionally or alternatively, the base station (e.g., base station 110) and / or another UE (e.g., the third UE 120d) may have already reserved resources used by the first UE 120a to transmit resource availability information and by the second UE 120b to receive such resource availability information. For example, base station 110 may have allocated a resource set from which the first UE 120a selects resources used by the first UE 120a to transmit resource availability information and by the second UE 120b to receive such resource availability information. Similarly, the third UE 120d may have reserved a resource set from which the first UE 120a selects resources used by the first UE 120a to transmit resource availability information and by the second UE 120b to receive such resource availability information. As another example, base station 110 may have allocated a resource set from which the third UE 120d reserves a subset of resources. Accordingly, the first UE 120a can select from the resource subset the resources used by the first UE 120a to transmit resource availability information and the resources used by the second UE 120b to receive the resource availability information.

[0110] In any of the aspects described above, the first UE 120a may contend for (e.g., with the third UE 120d) the resources that the first UE 120a uses to transmit resource availability information and that the second UE 120b uses to receive such resource availability information. For example, the MAC layer of the first UE 120a may contend for those resources with the MAC layers of other UEs on the sidelink channel.

[0111] As shown in conjunction with reference numeral 815, legacy UE 120c may suppress transmissions on resources used for requests (as described in conjunction with reference numeral 805) and resources used for reporting (as described in conjunction with reference numeral 810). In some aspects, legacy UE 120c may determine, at least in part, not to transmit on resources used for requests and / or resources used for reporting based on priorities as described above. For example, legacy UE 120c may receive an SCI from a first UE 120a and / or from a second UE 120b, and determine that the priority level indicated by the SCI for responses and / or requests is higher than the priority level used by legacy UE 120c for sidelink communication and / or communication on the Uu interface. Accordingly, based at least in part on this determination, legacy UE 120c may determine that resources indicated for responses and / or requests, respectively (e.g., in the SCI), are not available for communication by legacy UE 120c.

[0112] In some aspects, the second UE 120b may further use one or more resources, determined at least in part based on resource availability information, to transmit communication on a sidelink channel, and the fourth UE (e.g., UE 120e) may use these one or more resources to receive the communication on the sidelink channel. For example, the second UE 120b may determine these one or more resources, such as in combination with... Figures 5 to 6 As described. In some respects, the second UE 120b can select one or more resources from a resource set shared with the legacy UE 120c.

[0113] In some respects, the second UE 120b may use SCI to schedule the communication. For example, the second UE 120b may use SCI-2 to reserve one or more resources and schedule the communication within those resources.

[0114] By using combination Figure 8 The described technique allows the first UE 120a to avoid conflicts between inter-UE coordination reports and sidelink communications from legacy UE 120c. Additionally, the second UE 120b avoids conflicts between inter-UE coordination requests and sidelink communications from legacy UE 120c. Accordingly, the first UE 120a and the second UE 120b experience improved reliability and / or quality of inter-UE cooperative communication.

[0115] Example 800 can be combined with Example 700. For example, a second UE 120b can be used in a resource set not allocated to legacy UE 120c (e.g., such as...). Figure 7 The request is transmitted on resource 715 (as shown in the figure) (e.g., as described in conjunction with reference numeral 805). Accordingly, the second UE 120b may use the associated priority to supplement or replace the dedicated resource to avoid interference with the legacy UE 120c. Additionally or alternatively, the first UE 120a may transmit the request on a set of resources not allocated to the legacy UE 120c (e.g., as shown in the figure). Figure 7 The response is transmitted on resource 715 (as shown in the figure) (e.g., as described in conjunction with reference numeral 810). Accordingly, the first UE 120a can use the associated priority to supplement or replace the dedicated resource to avoid interference with the legacy UE 120c. In one example, the second UE 120b can transmit the response on a resource set not allocated to the legacy UE 120c (e.g., as shown in the figure). Figure 7 The request is transmitted on resource 715 (as shown) to avoid interference, and the first UE 120a can use the priority associated with the response to avoid interference. In another example, the second UE 120b can use the priority associated with the request to avoid interference, and the first UE 120a can use a resource set not assigned to the legacy UE 120c (e.g., such as...). Figure 7 The response is transmitted on resource 715 (as shown) to avoid interference.

[0116] As indicated above, Figure 8 This is provided as an example. Other examples may differ from the one provided. Figure 8 The example described.

[0117] Figure 9 This is a diagram illustrating example 900 associated with a legacy UE that discards communication regarding the availability of sidelink resources, according to this disclosure. Figure 9 As shown, Example 900 includes sidelink communication between UE 120a, UE 120b, and UE 120c. In some aspects, UE 120a, UE 120b, and UE 120c may be included in a wireless network (such as wireless network 100). UE 120a, UE 120b, and UE 120c may communicate in a sidelink channel (e.g., as combined with...) Figure 3 Communication takes place on the described channel 310. In some respects, UE 120c may be a legacy UE relative to the first UE 120a and the second UE 120b.

[0118] As shown in conjunction with reference numeral 905 in the accompanying drawings, the second UE 120b can transmit an inter-UE coordination request and the first UE 120a can receive the inter-UE coordination request. For example, the second UE 120b can transmit the request and the first UE 120a can receive the request, as shown in conjunction with reference numeral 905 in the accompanying drawings. Figure 8 As described by reference numeral 805 in the accompanying drawings. In some respects, the second UE 120b may encode an SCI (e.g., SCI-1 and / or SCI-2) associated with the request, which indicates that the request is not intended for legacy UE 120c.

[0119] As shown in conjunction with reference numeral 910a, and at least in part based on this request, the first UE 120a may perform a listening operation (e.g., as shown in conjunction with...). Figure 6 (As described). Accordingly, the first UE 120a can generate a report that includes resource availability information for the sidelink channel.

[0120] As shown in conjunction with reference numeral 910b, legacy UE 120c can determine that the request is associated with resource availability information of the sidelink channel and discard the request at least in part based on the determination that the request is associated with resource availability information of the sidelink channel. In some aspects, legacy UE 120c can determine that the request is associated with resource availability information of the sidelink channel at least in part based on the priority associated with the request (e.g., as shown in conjunction with reference numeral 910b). Figure 8 (As described). For example, priority can be indicated in the SCI from the second UE 120b.

[0121] Alternatively or additionally, legacy UE 120c may determine, at least in part, the resource availability information of the sidelink channel associated with the request based on the destination identifier associated with the request. For example, priority may be indicated in the SCI from a second UE 120b. In some aspects, the destination identifier may include a group identifier (e.g., a group radio network temporary identifier (G-RNTI)) associated with a group of UEs that does not include legacy UE 120c. Alternatively or additionally, the destination identifier may include one or more UE-specific identifiers (e.g., one or more radio network temporary identifiers (RNTIs)) not associated with legacy UE 120c.

[0122] Additionally or alternatively, legacy UE 120c may determine, at least in part, that the request is associated with resource availability information of the sidelink channel based on the message type field associated with the request. For example, the message type field may be included in the SCI from a second UE 120b. In some aspects, the message type field may include bits or other information indicating that the request is not intended for the legacy UE.

[0123] Alternatively or concurrently, legacy UE 120c may determine, at least in part, that the request is associated with resource availability information of the sidelink channel based on the format of the SCI that dispatches the request. For example, an SCI from a second UE 120b (e.g., SCI-2) may be in a format that legacy UE 120c cannot recognize. Accordingly, legacy UE 120c may implicitly determine that the request is associated with resource availability information of the sidelink channel.

[0124] In any of the aspects described above, and in combination Figure 8 As described, legacy UE 120c can further identify the resource set associated with the request on the sidelink channel and suppress the use of that resource set on the sidelink channel. For example, legacy UE 120c can identify the resource set using an SCI from a second UE 120b that reserves the resource set.

[0125] As shown with reference to reference numeral 915 in the accompanying drawings, the first UE 120a can transmit a response to the request and the second UE 120b can receive the response. For example, the first UE 120a can transmit a response and the second UE 120b can receive the response, as shown with reference to reference numeral 915 in the accompanying drawings. Figure 8 As described by reference numeral 810 in the accompanying drawings. In some respects, the first UE 120a may encode an SCI (e.g., SCI-1 and / or SCI-2) associated with the request, which indicates that the response is not intended for the legacy UE 120c.

[0126] As shown in conjunction with reference numeral 920a, and at least in part based on this response, the second UE 120b may access one or more resources determined at least in part based on the response. For example, the second UE 120b may further use one or more resources determined at least in part based on the response to transmit communication on a sidelink channel, and a third UE (e.g., UE 120d) may use the one or more resources to receive the communication on the sidelink channel. The second UE 120b may determine the one or more resources, as shown in conjunction with reference numeral 920a. Figures 5 to 6 As described.

[0127] As shown in conjunction with reference numeral 920b, legacy UE 120c can determine that the response is associated with resource availability information of the sidelink channel and discard the response at least in part based on this determination. In some aspects, legacy UE 120c can determine that the response request is associated with resource availability information of the sidelink channel at least in part based on the priority associated with the response (e.g., as shown in conjunction with reference numeral 920b). Figure 8 (As described). For example, priority can be indicated in the SCI from the first UE 120a.

[0128] Alternatively or additionally, legacy UE 120c may determine, at least in part, the resource availability information of the sidelink channel associated with the response based on the destination identifier associated with it. For example, priority may be indicated in the SCI from the first UE 120a. In some aspects, the destination identifier may include a group identifier (e.g., G-RNTI) associated with a group of UEs that does not include legacy UE 120c. Alternatively or additionally, the destination identifier may include one or more UE-specific identifiers (e.g., one or more RNTIs) not associated with legacy UE 120c.

[0129] Additionally or alternatively, legacy UE 120c may determine, at least in part, that the response is associated with resource availability information of the sidelink channel based on the message type field associated with it. For example, the message type field may be included in the SCI from the first UE 120a. In some aspects, the message type field may include bits or other information indicating that the response is not intended for the legacy UE.

[0130] Alternatively or additionally, legacy UE 120c may determine the association of the response with the resource availability information of the sidelink channel based at least in part on the format of the SCI that schedules the response. For example, the SCI from the first UE 120a (e.g., SCI-2) may be in a format that legacy UE 120c cannot recognize. Accordingly, legacy UE 120c may implicitly determine the association of the response with the resource availability information of the sidelink channel.

[0131] In any of the aspects described above, and in combination Figure 8 As described, legacy UE 120c can further identify the resource set associated with the response on the sidelink channel and suppress the use of that resource set on the sidelink channel. For example, legacy UE 120c can identify the resource set using an SCI from a first UE 120a that reserves that resource set.

[0132] By using combination Figure 9 The described technique allows the first UE 120a and the second UE 120b to avoid conflicts between inter-UE coordination communication and other side-link communication from the legacy UE 120c. Accordingly, the first UE 120a and the second UE 120b experience improved reliability and / or quality of inter-UE cooperative communication. In some aspects, the legacy UE 120c avoids attempting to decode inter-UE coordination requests and / or reports. Consequently, the legacy UE 120c saves processing resources by not attempting to decode communications that the legacy UE 120c cannot interpret and is not programmed or otherwise configured to respond to.

[0133] Example 900 can be combined with Example 700 and / or Example 800. For example, a second UE 120b can be used in a resource set not allocated to legacy UE 120c (e.g., such as...). Figure 7 The request is transmitted on resource 715 (as shown in the figure) (e.g., as described in conjunction with reference numeral 905). Accordingly, the second UE 120b may supplement or replace the transmission on a dedicated resource by encoding an SCI indicating that the request is not intended for the legacy UE, in order to avoid interference with the legacy UE 120c. Additionally or alternatively, the first UE 120a may transmit the request on a resource set not allocated to the legacy UE 120c (e.g., as shown in the figure). Figure 7 The response is transmitted on resource 715 (as shown in the figure) (e.g., as described in conjunction with reference numeral 915). Accordingly, the first UE 120a may supplement or replace transmission on dedicated resources by encoding an SCI indicating that the response is not intended for legacy UEs, in order to avoid interference with legacy UE 120c. In one example, the second UE 120b may transmit on a resource set not allocated to legacy UE 120c (e.g., as shown in the figure). Figure 7 The request is transmitted on resource 715 (as shown) to avoid interference, and the first UE 120a can encode an indication that the response is not intended for the legacy UE's SCI. In another example, the second UE 120b can encode an indication that the request is not intended for the legacy UE's SCI, and the first UE 120a can transmit the request on a resource set not assigned to the legacy UE 120c (e.g., such as...). Figure 7 Transmission is performed on resource 715 as shown to avoid interference.

[0134] As indicated above, Figure 9 This is provided as an example. Other examples may differ from the one provided. Figure 9 The example described.

[0135] Figure 10 This is a diagram illustrating an example process 1000 performed, for example, by a first UE according to this disclosure. Example process 1000 is wherein the first UE (e.g., Figure 15 An example of a UE 120 and / or device 1500 performing operations associated with communication regarding the availability of sidelink resources without interference from legacy UEs.

[0136] like Figure 10 As shown, in some aspects, process 1000 may include a resource set (block 1010) identifying a resource set used for exchanging resource availability information associated with a sidelink channel with a second UE. For example, a first UE (e.g., using...) Figure 15The identification component 1508 depicted herein can identify a set of resources used for exchanging resource availability information associated with the sidelink channel with a second UE, as described herein. In some respects, this set of resources is not allocated to legacy UEs.

[0137] like Figure 10 As further shown, in some aspects, process 1000 may include using the resource set to exchange resource availability information associated with the sidelink channel with the second UE (box 1020). For example, the first UE (e.g., using...) Figure 15 The transmission component 1504 described herein may use this resource set to exchange resource availability information associated with the sidelink channel with the second UE, as described herein.

[0138] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0139] In a first aspect, process 1000 further includes using one or more resources determined at least in part based on the resource availability information to transmit (e.g., using transmission component 1504) communication to a third UE on the side link channel.

[0140] In the second aspect, either alone or in combination with the first aspect, the communication is transmitted over one or more resources shared with the legacy UE.

[0141] In a third aspect, exchanging the resource availability information, either alone or in combination with one or more of the first and second aspects, includes using the resource set to transmit (e.g., using transmission component 1504) a request for the resource availability information associated with the sidelink channel to the second UE.

[0142] In the fourth aspect, the request is scheduled by SCI, either alone or in combination with one or more of the first to third aspects.

[0143] In the fifth aspect, the communication is scheduled by an additional SCI, either alone or in combination with one or more of the first to fourth aspects.

[0144] In the sixth aspect, exchanging the resource availability information, either alone or in combination with one or more of the first to fifth aspects, includes: using the resource set to receive from the second UE (e.g., using...). Figure 15 The resource availability information associated with the receiving component 1502 (described in the document) and the side link channel.

[0145] In the seventh aspect, exchanging the resource availability information, either alone or in combination with one or more of the first to sixth aspects, includes using the resource set to receive (e.g., using receiving component 1502) a request for the resource availability information associated with the sidelink channel from the second UE.

[0146] In the eighth aspect, exchanging the resource availability information, either alone or in combination with one or more of the first to seventh aspects, includes using the resource set to transmit (e.g., using transmission component 1504) the resource availability information associated with the sidelink channel to the second UE.

[0147] although Figure 10 An example box of process 1000 is shown, but in some respects, process 1000 may include... Figure 10 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes of process 1000 can be executed in parallel.

[0148] Figure 11 This is a diagram illustrating an example process 1100 performed, for example, by a first UE according to this disclosure. Example process 1100 is wherein the first UE (e.g., Figure 15 An example of a UE 120 and / or device 1500 performing operations associated with communication regarding the availability of sidelink resources without interference from legacy UEs.

[0149] like Figure 11 As shown, in some aspects, process 1100 may include transmitting a request to a second UE for resource availability information associated with the sidelink channel (block 1110). For example, a first UE (e.g., using...) Figure 15 The transmission component 1504 described herein can transmit to the second UE a request for resource availability information associated with the sidelink channel, as described herein. In some respects, this request is associated with a higher priority than other data transmitted on the sidelink channel.

[0150] like Figure 11 As further shown, in some aspects, process 1100 may include receiving, at least in part, the resource availability information associated with the sidelink channel from the second UE based on the request (box 1120). For example, the first UE (e.g., using...) Figure 15 The receiving component 1502 described herein may receive, at least in part, the resource availability information associated with the sidelink channel from the second UE based on the request, as described herein.

[0151] like Figure 11As further shown, in some aspects, process 1100 may include using one or more resources determined at least in part based on the resource availability information to transmit communication to a third UE on the sidelink channel (block 1130). For example, a first UE (e.g., using transmission component 1504) may use one or more resources determined at least in part based on the resource availability information to transmit communication to a third UE on the sidelink channel as described herein.

[0152] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0153] Firstly, the request is scheduled by the SCI, and the SCI indicates the higher priority.

[0154] In the second aspect, either alone or in combination with the first aspect, the communication is scheduled by an additional SCI.

[0155] In the third aspect, either alone or in combination with one or more of the first and second aspects, the request is transmitted on one or more resources reserved by the fourth UE.

[0156] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 1100 further includes contention (e.g., using...). Figure 15 The contention component 1510 described herein is reserved by the fourth UE for one or more resources such that the request is transmitted on the one or more resources at least in part based on contention for the one or more resources reserved by the fourth UE.

[0157] In the fifth aspect, either alone or in combination with one or more of the first and fourth aspects, the request is transmitted on one or more resources reserved by the first UE.

[0158] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the resource availability information is received on one or more resources reserved by the fourth UE.

[0159] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the resource availability information is received on one or more resources reserved by the first UE.

[0160] although Figure 11 An example box of process 1100 is shown, but in some respects, process 1100 may include... Figure 11The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 1100 can be executed in parallel.

[0161] Figure 12 This is a diagram illustrating an example process 1200 performed, for example, by a first UE according to this disclosure. Example process 1200 is wherein the first UE (e.g., Figure 15 An example of a UE 120 and / or device 1500 performing operations associated with communication regarding the availability of sidelink resources without interference from legacy UEs.

[0162] like Figure 12 As shown, in some aspects, process 1200 may include receiving a request from a second UE for resource availability information associated with a sidelink channel (block 1210). For example, a first UE (e.g., using...) Figure 15 The receiving component 1502 described herein can receive a request from the second UE for resource availability information associated with the sidelink channel, as described herein.

[0163] like Figure 12 As further shown, in some aspects, process 1200 may include transmitting, at least in part, the resource availability information associated with the sidelink channel to the second UE based on receiving the request (box 1220). For example, the first UE (e.g., using...) Figure 15 The transmission component 1504 described herein may, at least in part, transmit the resource availability information associated with the sidelink channel to the second UE based on the request, as described herein. In some respects, the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0164] Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0165] Firstly, the request is scheduled by the SCI, and the SCI indicates the higher priority.

[0166] In the second aspect, either alone or in combination with the first aspect, the resource availability information is transmitted on one or more resources reserved by the third UE.

[0167] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 1200 further includes contention (e.g., using...). Figure 15The contention component 1510 described herein is reserved by a third UE for one or more resources such that the resource availability information is transmitted on the one or more resources at least in part based on contention for the one or more resources reserved by the third UE.

[0168] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the resource availability information is transmitted on one or more resources reserved by the first UE.

[0169] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the request is received on one or more resources reserved by the third UE.

[0170] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the request is received on one or more resources reserved by the first UE.

[0171] although Figure 12 An example box of process 1200 is shown, but in some respects, process 1200 may include... Figure 12 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 1200 can be executed in parallel.

[0172] Figure 13 This is a diagram illustrating an example process 1300 performed, for example, by a first UE according to this disclosure. Example process 1300 is wherein the first UE (e.g., Figure 15 An example of a UE 120 and / or device 1500 performing operations associated with communication regarding the availability of sidelink resources without interference from legacy UEs.

[0173] like Figure 13 As shown, in some aspects, process 1300 may include receiving communication from a second UE on a sidelink channel (block 1310). For example, the UE (e.g., using...) Figure 15 The receiving component 1502 described herein can receive communication from a second UE on a sidelink channel, as described herein.

[0174] like Figure 13 As further shown, in some aspects, process 1300 may include determining that the communication is associated with resource availability information of the sidelink channel (box 1320). For example, a first UE (e.g., using...) Figure 15 The determining component 1514 described herein can determine the association of the communication with the resource availability information of the side link channel, as described herein.

[0175] like Figure 13As further shown, in some aspects, process 1300 may include discarding the communication at least in part based on its association with resource availability information of the sidelink channel (box 1330). For example, a first UE (e.g., using...) Figure 15 The discarding component 1516 described herein may discard the communication at least in part based on the association of the communication with the resource availability information of the side link channel, as described herein.

[0176] Process 1300 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0177] In the first aspect, process 1300 further includes identification (e.g., using...) Figure 15 The identification component 1508 depicted in the document is associated with a set of resources for communication on the sidelink channel, and with suppression (e.g., using...) Figure 15 The receiving component 1502 and / or the transmitting component 1504 described herein use the resource set on the side link channel.

[0178] In the second aspect, either alone or in combination with the first aspect, the resource set is identified at least in part based on the SCI that retains the resource set.

[0179] In a third aspect, either alone or in combination with one or more of the first and second aspects, the communication includes at least one of a request for resource availability information of the sidelink channel or a response including resource availability information of the sidelink channel.

[0180] In the fourth aspect, the determination of the communication’s association with the resource availability information of the sidelink channel, either alone or in combination with one or more of the first to third aspects, is based at least in part on the priority associated with the communication.

[0181] In the fifth aspect, the priority associated with the communication, either alone or in combination with one or more of the first to fourth aspects, is indicated in the SCI.

[0182] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the determination that the communication is associated with the resource availability information of the sidelink channel is based at least in part on the destination identifier associated with the communication.

[0183] In the seventh aspect, the destination identifier is indicated in the SCI, either alone or in combination with one or more of the first to sixth aspects.

[0184] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the destination identifier includes a group identifier associated with a group of UEs that do not include the first UE.

[0185] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the destination identifier includes a specific identifier that is not associated with the first UE.

[0186] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the determination that the communication is associated with the resource availability information of the sidelink channel is based at least in part on the message type field associated with the communication.

[0187] In the eleventh aspect, the message type field is included in the SCI, either alone or in combination with one or more of the first to tenth aspects.

[0188] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the determination of the association of the communication with the resource availability information of the sidelink channel is based at least in part on the format of the SCI that schedules the communication.

[0189] although Figure 13 An example box of process 1300 is shown, but in some respects, process 1300 may include... Figure 13 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 1300 can be executed in parallel.

[0190] Figure 14 This is a diagram illustrating an example process 1400 performed, for example, by a first UE according to this disclosure. Example process 1400 is wherein the first UE (e.g., Figure 15 An example of a UE 120 and / or device 1500 performing operations associated with communication regarding the availability of sidelink resources without interference from legacy UEs.

[0191] like Figure 14 As shown, in some aspects, process 1400 may include encoding the SCI associated with communication for a second UE on a sidelink channel (block 1410). For example, the first UE (e.g., using...) Figure 15 The encoding component 1512 described herein can encode SCIs associated with communications for a second UE on a sidelink channel, as described herein. In some respects, the communications are associated with resource availability information of the sidelink channel, and the SCI indicates that the communications are not intended for a legacy UE.

[0192] like Figure 14As further shown, in some aspects, process 1400 may include transmitting the SCI to the legacy UE (box 1420). For example, the first UE (e.g., using...) Figure 15 The transmission component 1504 described herein can transmit the SCI to the legacy UE as described herein.

[0193] Process 1400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0194] In a first aspect, the communication includes at least one of a request for resource availability information of the sidelink channel or a response including the resource availability information of the sidelink channel.

[0195] In a second aspect, either alone or in combination with the first aspect, the SCI indicates, at least in part, that the communication is not intended for the legacy UE based on the priority indicated in the SCI and associated with the communication.

[0196] In a third aspect, either alone or in combination with one or more of the first and second aspects, the SCI is at least partially based on a destination identifier included in the SCI and associated with the communication to indicate that the communication is not intended for the legacy UE.

[0197] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the destination identifier includes a group identifier associated with a group of UEs that do not contain the legacy UE.

[0198] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the destination identifier includes a specific identifier that is not associated with the legacy UE.

[0199] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the SCI indicates, at least in part, that the communication is not intended for the legacy UE based on a message type field included in the SCI and associated with the communication.

[0200] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the SCI is at least partially based on the format of the SCI to indicate that the communication is not intended for the legacy UE.

[0201] although Figure 14 An example box of process 1400 is shown, but in some respects, process 1400 may include... Figure 14 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 1400 can be executed in parallel.

[0202] Figure 15 This is a block diagram of an example device 1500 for wireless communication. The device 1500 may be a first UE, or a first UE may include the device 1500. In some aspects, the device 1500 includes a receiving component 1502 and a transmitting component 1504, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, the device 1500 may use the receiving component 1502 and the transmitting component 1504 to communicate with another device 1506 (such as a second UE, a legacy UE, a base station, or another wireless communication device). As further shown, the device 1500 may include one or more of an identification component 1508, a contention component 1510, an encoding component 1512, a determination component 1514, or a discard component 1516, etc.

[0203] In some respects, device 1500 can be configured to perform the functions described herein. Figure 5-9 The described one or more operations. Additionally or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as Figure 10 Process 1000 Figure 11 Process 1100 Figure 12 Process 1200 Figure 13 Process 1300 Figure 14 Process 1400 or a combination thereof. In some aspects, device 1500 and / or Figure 15 One or more components shown may include the above combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 15 One or more components shown can be combined as described above. Figure 2 Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0204] Receiver 1502 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1506. Receiver 1502 may provide the received communications to one or more other components of device 1500. In some aspects, receiver 1502 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 1500. In some aspects, receiver 1502 may include combinations of the above. Figure 2 The described UE includes one or more antennas, modems, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0205] Transmission component 1504 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to device 1506. In some aspects, one or more other components of device 1500 can generate communications and provide the generated communications to transmission component 1504 for transmission to device 1506. In some aspects, transmission component 1504 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to device 1506. In some aspects, transmission component 1504 can include combinations of the above. Figure 2 The described UE includes one or more antennas, modems, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1504 may coexist with the receive component 1502 in a transceiver.

[0206] In some aspects, identification component 1508 may identify a set of resources used for exchanging resource availability information associated with the sidelink channel with device 1506. This resource set may not have been allocated to a legacy UE. In some aspects, identification component 1508 may include the above combination. Figure 2 The described UE includes one or more antennas, modems, MIMO detectors, receive processors, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. Transmitter component 1504 and / or receiver component 1502 may use this resource set to exchange resource availability information associated with the sidelink channel with device 1506. In some aspects, transmitter component 1504 may further use one or more resources, determined at least in part based on the resource availability information, to transmit communication to another UE on the sidelink channel.

[0207] In some aspects, transmission component 1504 may transmit a request to device 1506 for resource availability information associated with the sidelink channel. This request may be associated with a higher priority than other data transmitted on the sidelink channel. Receiving component 1502 may receive the resource availability information associated with the sidelink channel from device 1506 based at least in part on the request transmitted by transmission component 1504. Transmission component 1504 may further use one or more resources determined at least in part based on the resource availability information to transmit communication to another UE on the sidelink channel. In some aspects, contention component 1510 may contention for the one or more resources used by transmission component 1504 to transmit the request. In some aspects, contention component 1510 may include the above combinations. Figure 2 The described UE includes one or more antennas, modems, MIMO detectors, receive processors, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof.

[0208] In some aspects, receiving component 1502 may receive from device 1506 a request for resource availability information associated with the sidelink channel. Transmitting component 1504 may transmit the resource availability information associated with the sidelink channel to device 1506 based at least in part on receiving component 1502 receiving the request. The resource availability information may be associated with a higher priority than other data transmitted on the sidelink channel. In some aspects, contention component 1510 may contentionize the one or more resources used by transmitting component 1504 to transmit the resource availability information.

[0209] In some aspects, encoding component 1512 may encode SCIs associated with communication on a sidelink channel. This communication may be associated with resource availability information of the sidelink channel, and the SCI may indicate that the communication is not intended for legacy UEs. In some aspects, encoding component 1512 may include a combination of the above. Figure 2 The described UE includes a modem, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. Transmission component 1504 may further transmit the SCI to the legacy UE.

[0210] In some aspects, device 1500 may be a legacy UE. Accordingly, in some aspects, receiving component 1502 may receive communication from device 1506 on a sidelink channel. Determining component 1514 may determine that the communication is associated with resource availability information of the sidelink channel. In some aspects, determining component 1514 may include a combination of the above. Figure 2The described UE includes a modem, MIMO detector, receive processor, controller / processor, memory, or a combination thereof. The discarding component 1516 may discard the communication at least in part based on its association with resource availability information of the sidelink channel. In some aspects, the discarding component 1516 may include a combination of the above. Figure 2 The described UE includes a receiving processor, controller / processor, memory, or a combination thereof. In some aspects, the identification component 1508 may further identify a set of resources associated with the communication on the sidelink channel. Accordingly, the receiving component 1502 and / or the transmitting component 1504 may suppress the use of this set of resources on the sidelink channel.

[0211] Figure 15 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 15 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 15 The two or more components shown can be implemented within a single component, or Figure 15 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 15 The collection of components shown (e.g., one or more components) can be executed as described by Figure 15 The other set of components shown in the diagram performs one or more functions.

[0212] Figure 16 This is a block diagram of an example device 1600 for wireless communication. Device 1600 may be a base station, or a base station may include device 1600. In some aspects, device 1600 includes a receiving component 1602 and a transmitting component 1604, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1600 may use the receiving component 1606 and the transmitting component 1602 to communicate with another device 1604 (such as a UE, a base station, or another wireless communication device). As further shown, device 1600 may include an allocation component 1608 and other examples.

[0213] In some respects, device 1600 can be configured to perform the functions described herein. Figure 5-9 One or more operations described herein. Additionally or alternatively, device 1600 may be configured to perform one or more processes, or combinations thereof, described herein. In some aspects, device 1600 and / or Figure 16 One or more components shown may include the above combination Figure 2 One or more components of the described base station. Additional or alternative. Figure 16 One or more components shown can be combined as described above. Figure 2Implementation within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0214] Receiver 1602 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1606. Receiver 1602 may provide the received communications to one or more other components of device 1600. In some aspects, receiver 1602 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 1600. In some aspects, receiver 1602 may include combinations of the above. Figure 2 The described base station includes one or more antennas, modems, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0215] Transmission component 1604 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to device 1606. In some aspects, one or more other components of device 1600 can generate communications and provide the generated communications to transmission component 1604 for transmission to device 1606. In some aspects, transmission component 1604 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to device 1606. In some aspects, transmission component 1604 can include combinations of the above. Figure 2 The described base station includes one or more antennas, a modulation modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. In some aspects, the transmit component 1604 may coexist with the receive component 1602 in a transceiver.

[0216] In some aspects, allocation component 1608 may allocate a set of resources used for exchanging resource availability information associated with sidelink channels to device 1606 instead of legacy UE. In some aspects, allocation component 1608 may include a combination of the above. Figure 2 The described base station includes a transmit MIMO processor, transmit processor, controller / processor, memory, or a combination thereof. Transmission component 1604 may transmit (e.g., using RRC signaling) permission for this resource set to device 1606.

[0217] Additionally or alternatively, allocation component 1608 may allocate another set of resources for the sidelink channel to device 1606 and legacy UE. Transmission component 1604 may transmit (e.g., using RRC signaling) permission for this resource set to device 1606 and legacy UE.

[0218] In any of the aspects described above, receiving component 1602 may receive information associated with the sidelink channel (e.g., RSRP measurements, one or more CQI and / or CSI reports, etc.) from device 1606, legacy UE, and / or one or more additional devices. Accordingly, allocation component 1608 may allocate one or more resource sets (e.g., as described above) based at least in part on the information received by receiving component 1602.

[0219] Figure 16 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 16 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 16 The two or more components shown can be implemented within a single component, or Figure 16 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 16 The collection of components shown (e.g., one or more components) can be executed as described by Figure 16 The other set of components shown in the diagram performs one or more functions.

[0220] The following provides an overview of some aspects of this disclosure: Aspect 1: A wireless communication method performed by a first user equipment (UE), comprising: identifying a resource set for exchanging resource availability information associated with a sidelink channel with a second UE, wherein the resource set is not allocated to a legacy UE; and using the resource set to exchange the resource availability information associated with the sidelink channel with the second UE.

[0221] Aspect 2: The method of aspect 1 further includes: using one or more resources determined at least in part based on the resource availability information to transmit communication to a third UE on the side link channel.

[0222] Aspect 3: The method of aspect 2, wherein the communication is transmitted over one or more resources shared with the legacy UE.

[0223] Aspect 4: The method of any of Aspects 2 to 3, wherein the communication is scheduled by sidechain control information (SCI).

[0224] Aspect 5: The method of any one of Aspects 1 to 4, wherein exchanging the resource availability information includes: using the resource set to receive the resource availability information associated with the sidelink channel from the second UE.

[0225] Aspect 6: The method of aspect 5, wherein exchanging the resource availability information further includes: using the resource set to transmit a request to the second UE for the resource availability information associated with the sidelink channel.

[0226] Aspect 7: The method of aspect 6, wherein the request is scheduled by sidechain control information (SCI).

[0227] Aspect 8: The method of any one of Aspects 1 to 4, wherein exchanging the resource availability information includes: using the resource set to transmit the resource availability information associated with the sidelink channel to the second UE.

[0228] Aspect 9: The method of aspect 8, wherein exchanging the resource availability information further includes: using the resource set to receive from the second UE a request for the resource availability information associated with the sidelink channel.

[0229] Aspect 10: The method of aspect 9, wherein the request is scheduled by sidechain control information (SCI).

[0230] Aspect 11: A wireless communication method performed by a first user equipment (UE), comprising: transmitting to a second UE a request for resource availability information associated with a sidelink channel, wherein the request is associated with a higher priority than other data transmitted on the sidelink channel; receiving, at least in part, the resource availability information associated with the sidelink channel from the second UE based on the request; and transmitting communication to a third UE on the sidelink channel using one or more resources determined at least in part based on the resource availability information.

[0231] Aspect 12: The method of aspect 11, wherein the request is scheduled by sidechain control information (SCI), and wherein the SCI indicates the higher priority.

[0232] Aspect 13: The method of any of Aspects 11 to 12, wherein the communication is scheduled by sidechain control information (SCI).

[0233] Aspect 14: The method of any one of Aspects 11 to 13, wherein the request is transmitted on one or more resources reserved by the fourth UE.

[0234] Aspect 15: The method of aspect 14 further includes: contending for the one or more resources reserved by the fourth UE, wherein the request is transmitted on the one or more resources at least in part based on contending for the one or more resources reserved by the fourth UE.

[0235] Aspect 16: The method of any one of Aspects 11 to 13, wherein the request is transmitted on one or more resources reserved by the first UE.

[0236] Aspect 17: The method of any one of Aspects 11 to 16, wherein the resource availability information is received on one or more resources held by the fourth UE.

[0237] Aspect 18: The method of any one of Aspects 11 to 16, wherein the resource availability information is received on one or more resources reserved by the first UE.

[0238] Aspect 19: A wireless communication method performed by a first user equipment (UE), comprising: receiving from a second UE a request for resource availability information associated with a sidelink channel; and transmitting, at least in part, the resource availability information associated with the sidelink channel to the second UE based on the request, wherein the resource availability information is associated with a higher priority than other data transmitted on the sidelink channel.

[0239] Aspect 20: The method of aspect 19, wherein the request is scheduled by sidechain control information (SCI), and wherein the SCI indicates the higher priority.

[0240] Aspect 21: The method of any one of Aspects 19 to 20, wherein the resource availability information is transmitted on one or more resources held by a third UE.

[0241] Aspect 22: The method of aspect 20 further includes: contending for the one or more resources reserved by a third UE, wherein the resource availability information is transmitted on the one or more resources at least in part based on contending for the one or more resources reserved by the third UE.

[0242] Aspect 23: The method of any one of Aspects 19 to 20, wherein the resource availability information is transmitted on one or more resources reserved by the first UE.

[0243] Aspect 24: The method of any of Aspects 19 to 23, wherein the request is received on one or more resources reserved by a third UE.

[0244] Aspect 25: The method of any one of Aspects 19 to 23, wherein the request is received on one or more resources reserved by the first UE.

[0245] Aspect 26: A wireless communication method performed by a first user equipment (UE), comprising: receiving communication from a second UE on a sidelink channel and determining that the communication is associated with resource availability information of the sidelink channel; and discarding the communication at least in part based on the association of the communication with the resource availability information of the sidelink channel.

[0246] Aspect 27: The method of aspect 26 further includes: identifying a set of resources associated with the communication on the side link channel; and suppressing the use of the set of resources on the side link channel.

[0247] Aspect 28: The method of aspect 27, wherein the resource set is identified at least in part based on side link control information (SCI) that is retained for the resource set.

[0248] Aspect 29: The method of any one of Aspects 26 to 28, wherein the communication includes at least one of a request for resource availability information of the sidelink channel or a response including resource availability information of the sidelink channel.

[0249] Aspect 30: The method of any one of Aspects 26 to 29, wherein determining the association of the communication with the resource availability information of the side link channel is based at least in part on the priority associated with the communication.

[0250] Aspect 31: The method of aspect 30, wherein the priority associated with the communication is indicated in the SCI.

[0251] Aspect 32: The method of any one of Aspects 26 to 31, wherein determining the association of the communication with the resource availability information of the sidelink channel is based at least in part on the destination identifier associated with the communication.

[0252] Aspect 33: The method of aspect 32, wherein the destination identifier is indicated in the SCI.

[0253] Aspect 34: The method of any of Aspects 32 to 33, wherein the destination identifier includes a group identifier associated with a group of UEs that does not include the first UE.

[0254] Aspect 35: The method of any one of Aspects 32 to 33, wherein the destination identifier includes a specific identifier not associated with the first UE.

[0255] Aspect 36: The method of any one of Aspects 26 to 35, wherein determining the association of the communication with the resource availability information of the side link channel is based at least in part on the message type field associated with the communication.

[0256] Aspect 37: The method of aspect 36, wherein the message type field is included in the SCI.

[0257] Aspect 38: The method of any one of Aspects 26 to 37, wherein determining the association of the communication with the resource availability information of the sidelink channel is based at least in part on the format of the SCI that schedules the communication.

[0258] Aspect 39: A wireless communication method performed by a first user equipment (UE) comprising: encoding sidelink control information (SCI) associated with communication for a second UE on a sidelink channel, wherein the communication is associated with resource availability information of the sidelink channel, and wherein the SCI indicates that the communication is not intended for a legacy UE; and transmitting the SCI to the legacy UE.

[0259] Aspect 40: The method of aspect 39, wherein the communication includes at least one of a request for resource availability information of the sidelink channel or a response including the resource availability information of the sidelink channel.

[0260] Aspect 41: The method of any one of Aspects 39 to 40, wherein the SCI indicates that the communication is not intended for the legacy UE, at least in part based on a priority indicated in the SCI and associated with the communication.

[0261] Aspect 42: The method of any one of Aspects 39 to 41, wherein the SCI is at least partially based on a destination identifier included in the SCI and associated with the communication to indicate that the communication is not intended for the legacy UE.

[0262] Aspect 43: The method of aspect 42, wherein the destination identifier includes a group identifier associated with a group of UEs that do not contain the legacy UE.

[0263] Aspect 44: The method of aspect 42, wherein the destination identifier includes a specific identifier not associated with the legacy UE.

[0264] Aspect 45: The method of any one of Aspects 39 to 44, wherein the SCI indicates, at least in part, that the communication is not intended for the legacy UE based on a message type field included in the SCI and associated with the communication.

[0265] Aspect 46: The method of any of Aspects 39 to 45, wherein the SCI is at least partially based on the format of the SCI to indicate that the communication is not intended for the legacy UE.

[0266] Aspect 47: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform methods as described in one or more of aspects 1-10.

[0267] Aspect 48: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform methods as described in one or more aspects of aspects 1-10.

[0268] Aspect 49: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 1-10.

[0269] Aspect 50: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 1-10.

[0270] Aspect 51: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 1-10.

[0271] Aspect 52: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform methods as described in one or more aspects of aspects 11-18.

[0272] Aspect 53: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform methods as described in one or more aspects of aspects 11-18.

[0273] Aspect 54: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 11-18.

[0274] Aspect 55: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 11-18.

[0275] Aspect 56: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 11-18.

[0276] Aspect 57: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform methods as described in one or more aspects of aspects 19-25.

[0277] Aspect 58: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform methods as described in one or more aspects of aspects 19-25.

[0278] Aspect 59: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 19-25.

[0279] Aspect 60: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 19-25.

[0280] Aspect 61: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 19-25.

[0281] Aspect 62: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform methods as described in one or more aspects of aspects 26-38.

[0282] Aspect 63: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform methods as described in one or more aspects of aspects 26-38.

[0283] Aspect 64: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 26-38.

[0284] Aspect 65: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 26-38.

[0285] Aspect 66: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 26-38.

[0286] Aspect 67: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform methods as described in one or more aspects of aspects 39-46.

[0287] Aspect 68: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform methods as described in one or more aspects of aspects 39-46.

[0288] Aspect 69: An apparatus for wireless communication, comprising at least one means for performing a method as described in one or more aspects of aspects 39-46.

[0289] Aspect 70: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods as described in one or more aspects of aspects 39-46.

[0290] Aspect 71: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform methods as described in one or more aspects of aspects 39-46.

[0291] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.

[0292] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Therefore, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code, as those skilled in the art will understand that the software and hardware can be designed to implement these systems and / or methods, at least in part, based on the description herein.

[0293] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0294] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. Many of these features may be combined in ways not specifically described in the claims and / or disclosed in the specification. The disclosure of aspects includes each dependent claim in combination with each other claim in the claim set. As used herein, the phrase “at least one of” refers to any combination of these items, including a single member. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0295] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” In cases where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., the element “has” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. An apparatus for performing wireless communication at a first user equipment (UE), comprising: One or more memory units; as well as One or more processors coupled to the one or more memories, the one or more processors being configured to: Receive communication from the second UE on the side link channel; Determine that the communication is associated with the resource availability information of the sidelink channel; and The communication may be dropped, at least in part, based on its association with resource availability information of the sidelink channel.

2. The apparatus of claim 1, wherein, The communication includes at least one of a request for resource availability information of the sidelink channel or a response including the resource availability information of the sidelink channel.

3. The apparatus of claim 1, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based at least in part on the destination identifier associated with the communication.

4. The apparatus of claim 3, wherein, The destination identifier associated with the communication is indicated in the sidechain control information (SCI).

5. The apparatus of claim 1, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based at least in part on the message type field associated with the communication.

6. The apparatus of claim 5, wherein, The message type field is included in the sidechain control information (SCI).

7. The apparatus of claim 1, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based, at least in part, on the format of the sidelink control information (SCI) that schedules the communication.

8. The apparatus of claim 1, wherein, The communication is associated with the first-stage sidechain control information SCI-1.

9. The apparatus of claim 1, wherein, The communication is associated with the second-stage sidechain control information SCI-2.

10. An apparatus for performing wireless communication at a user equipment (UE), comprising: One or more memory units; as well as One or more processors coupled to the one or more memories, the one or more processors being configured to: Receive communication from the second UE on the side link channel; Determine that the communication is associated with the resource availability information of the sidelink channel; and The communication is decoded at least in part based on its association with resource availability information of the sidelink channel.

11. The apparatus of claim 10, wherein, The communication includes at least one of a request for resource availability information of the sidelink channel or a response including the resource availability information of the sidelink channel.

12. The apparatus of claim 10, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based at least in part on the destination identifier associated with the communication.

13. The apparatus of claim 12, wherein, The destination identifier associated with the communication is indicated in the sidechain control information (SCI).

14. The apparatus of claim 10, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based at least in part on the message type field associated with the communication.

15. The apparatus of claim 14, wherein, The message type field is included in the sidechain control information (SCI).

16. The apparatus of claim 10, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based, at least in part, on the format of the sidelink control information (SCI) that schedules the communication.

17. The apparatus of claim 10, wherein, The communication is associated with the first-stage sidechain control information SCI-1.

18. The apparatus of claim 10, wherein, The communication is associated with the second-stage sidechain control information SCI-2.

19. A wireless communication method performed at a user equipment (UE), comprising: Receive communication from the second UE on the side link channel; Determine the association between the communication and the resource availability information of the sidelink channel; as well as The communication may be decoded or discarded, at least in part, based on its association with resource availability information of the sidelink channel.

20. The method of claim 19, wherein, The determination of the association between the communication and the resource availability information of the sidelink channel is based, at least in part, on the format of the sidelink control information (SCI) that schedules the communication.

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