Resource reservation information shared with data

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a first user equipment (UE) can receive one or more indicators corresponding to one or more resource reservations from one or more additional UEs. Thus, the UE can transmit data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data. For example, the control element can include a list or bitmap indicating at least one resource reservation. Numerous other aspects are also described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. non-provisional patent application No. 17 / 447,657, filed on September 14, 2021, entitled “RESOURCE RESERVATION INFORMATION SHARING WITH DATA,” which is hereby expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for transmitting and receiving resource reservation information along with data. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may utilize multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power, etc.). 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 a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

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

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. The new radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, so as to better support mobile broadband Internet access. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0007] Some aspects described herein relate to an apparatus for wireless communication at a first user equipment (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 one or more indicators corresponding to one or more resource reservations from one or more additional UEs. The one or more processors may be further configured to transmit data to a second UE on a sidelink channel, wherein at least one resource reservation in the one or more resource reservations is indicated within a control element transmitted with the data.

[0008] 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 data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data. The one or more processors may be further configured to transmit on the sidelink channel based at least in part on resource exclusion using at least one resource reservation.

[0009] Some aspects described herein relate to a method of wireless communication performed by a first UE. The method may include receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs. The method may also include transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data.

[0010] Some aspects described herein relate to a method of wireless communication performed by a first UE. The method may include receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data. The method may also include transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a first UE. The instruction set, when executed by one or more processors of the first UE, may cause the first UE to receive one or more indicators corresponding to one or more resource reservations from one or more additional UEs. The instruction set, when executed by one or more processors of the first UE, may further cause the first UE to transmit data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a first UE. The instruction set, when executed by one or more processors of the first UE, may cause the first UE to receive data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data. The instruction set, when executed by one or more processors of the first UE, may further cause the first UE to transmit on the sidelink channel based at least in part on resource exclusion using at least one resource reservation.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs. The apparatus may also include means for transmitting data to the UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving data from a UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data. The apparatus may also include means for transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

[0015] Aspects of the present invention generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems as fully described herein with reference to and as illustrated in the accompanying drawings and description.

[0016] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following detailed description can be better understood. Additional features and advantages will be described later. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not deviate from the scope of protection of the attached claims. The characteristics of the concepts disclosed herein in terms of their organization and method of operation and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each figure is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0017] Although various aspects are described in the present disclosure by explaining some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. 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 various 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to fully understand the above features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only show certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of side link communication according to the present disclosure.

[0022] Figure 4 is a diagram showing an example of side link communication and access link communication according to the present disclosure.

[0023] Figure 5 is a diagram illustrating an example of resource exclusion according to the present disclosure.

[0024] Figure 6 is a diagram illustrating an example associated with transmitting a control element indicating resource reservation together with data according to the present disclosure.

[0025] Figure 7 and Figure 8 is a diagram illustrating an example associated with a control element indicating resource reservation according to the present disclosure.

[0026] Fig. 9 is a diagram illustrating an example associated with transmitting and receiving resource reservation information together with data according to the present disclosure.

[0027] Fig.10 and Fig.11 is a diagram illustrating an example process associated with transmitting and receiving resource reservation information along with data according to the present disclosure.

[0028] Fig.12 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0029] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the present disclosure will be fully conveyed to those skilled in the art. It should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements in the claims.

[0030] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and design constraints imposed on the overall system.

[0031] Although aspects may be described herein using terminology generally associated with 5G or New Radio (NR) radio access technology (RAT), aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).

[0032] Figure 1 1 is a diagram showing an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, as well as other examples. The wireless network 100 may include one or more base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d), a user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE120e), and / or other network entities. The base station 110 is an entity that communicates with the UE 120. The base station 110 (sometimes referred to as a BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmission reception 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 ​​a base station 110 and / or a base station subsystem serving the coverage area, depending on the context in which the term is used.

[0033] The base station 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 that has an association with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A base station 110 for a macro cell may be referred to as a macro base station. A base station 110 for a pico cell may be referred to as a pico base station. A base station 110 for a femto cell may be referred to as a femto base station or a home base station. In Figure 1 In the example shown in , BS 110a may be a macro base station for macro cell 102a, BS 110b may be a pico base station for pico cell 102b, and BS 110c may be a femto base station for femto cell 102c. A base station may support one or more (eg, three) cells.

[0034] In some examples, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile base station 110 (e.g., a mobile base station). In some examples, the base stations 110 may interconnect with each other and / or to one or more other base stations 110 or network nodes (not shown) in the wireless network 100 using any suitable transport network over various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0035] The wireless network 100 may include one or more relay stations. A relay station is an entity that receives transmissions of data from an upstream station (e.g., a base station 110 or a UE 120) and sends transmissions of data to a downstream station (e.g., a UE 120 or a base station 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in FIG, BS 110d (eg, a relay base station) can communicate with BS 110a (eg, a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120d. Base station 110 that relays communication may be referred to as a relay station, relay base station, relay, or the like.

[0036] The wireless network 100 may be a heterogeneous network that includes different types of base stations 110, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations 110 may have different transmission power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro base station may have a high transmission power level (e.g., 5 watts to 40 watts), while a pico base station, a femto base station, and a relay base station may have a lower transmission power level (e.g., 0.1 watt to 2 watts).

[0037] A network controller 130 may be coupled to or in communication with a set of base stations 110 and may provide coordination and control for these base stations. The network controller 130 may communicate with the base stations 110 via a backhaul communication link. The base stations 110 may communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link.

[0038] UE 120 can be distributed throughout wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 can be a cellular phone (e.g., a smart phone), 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, and / or any other suitable device configured to communicate via a wireless medium.

[0039] Some UE 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UE. MTC UE and / or eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor and / or a location tag, which may communicate with a base station, another device (e.g., a remote device) or some other entity. Some UE 120 may be considered as an Internet of Things (IoT) device, and / or may be implemented as a NB-IoT (narrowband IoT) device. Some UE 120 may be considered as client equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0040] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, an air interface, etc. Frequency may be referred to as a carrier, a frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0041] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, or vehicle-to-pedestrian (V2P) protocol), and / or mesh network. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0042] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated 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 often (interchangeably) referred to as a "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as a "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU).

[0043] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as the frequency range name FR3 (7.125GHz-24.25GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations beyond 52.6GHz. For example, three higher operating bands have been identified as frequency range names FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0044] Considering the above examples, unless otherwise explicitly stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term can be broadly referred to as a frequency that can be below 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise explicitly stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band. It is contemplated that the frequencies included in these operating 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.

[0045] In some aspects, UE 120a may include a communications manager 140. Figure 1As shown and as described in more detail elsewhere herein, the communication manager 140 may receive one or more indicators corresponding to one or more resource reservations and transmit data on a sidelink channel (e.g., to the UE 120e), wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data. Additionally or alternatively, the communication manager 140 may receive data on a sidelink channel (e.g., from the UE 120e), wherein at least one resource reservation is indicated within a control element received with the data, and transmit on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0046] As indicated above, Figure 1 Provided as an example only. Other examples may be found in the Figure 1 Different than described.

[0047] Figure 2 2 is a diagram illustrating an example 200 of base station 110 communicating with UE 120 in wireless network 100 according to the present disclosure. Base station 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0048] At the base station 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The base station 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmission processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmission (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a set of corresponding modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas) (shown as antennas 234a through 234t).

[0049] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the base station 110 and / or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the 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 may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0050] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0051] 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 sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components).

[0052] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, where applicable, further processed by a modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of one or more antennas 252, one or more modems 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, with reference to Figures 5 to 12 ) or any aspects of any of the methods described herein.

[0053] At the base station 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the base station 110 may include a modulator and a demodulator. In some examples, the base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 5 to 12 ) or any aspects of any of the methods described herein.

[0054] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the base station 110 may perform one or more techniques associated with transmitting and receiving resource reservation information along with data, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Fig.10 The process of 1000 Fig.11 1100 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes 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, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example Fig.10 The process of 1000 Fig.11 The process 1100 and / or operations of other processes described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0055] In some aspects, a first UE (e.g., UE 120 and / or Fig.12 The apparatus 1200 of the invention may include means for receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; and / or means for transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data. The means for the first UE to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0056] In some aspects, a first UE (e.g., UE 120 and / or Fig.12The apparatus 1200 of the invention may include means for receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data; and / or means for transmitting on the sidelink channel based at least in part on resource exclusion using at least one resource reservation. The means for the first UE to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0057] Although Figure 2 The blocks in the 200 and 210 are shown as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0058] As indicated above, Figure 2 Provided as an example only. Other examples may be found in the Figure 2 Different than described.

[0059] Figure 3 is a diagram illustrating an example 300 of sidelink communications according to the present disclosure. 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 side link channels 310. UE305-1 and 305-2 can communicate using one or more side link channels 310 for P2P communication, D2D communication, V2X communication (e.g., which may include V2V communication, V2I communication and / or V2P communication) and / or mesh network. In some aspects, UE305 (e.g., UE 305-1 and / or UE 305-2) can correspond to one or more other UEs described elsewhere herein, such as UE 120. In some aspects, one or more side link channels 310 can use a PC5 interface and / or can operate in a high frequency band (e.g., a 5.9 GHz band). Additionally or alternatively, UE 305 can use global navigation satellite system (GNSS) timing to synchronize the timing of a transmission time interval (TTI) (e.g., a frame, a subframe, a time slot, or a symbol).

[0060] like Figure 3As further shown, 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. The PSCCH 315 may be used to transmit control information, similar to a physical downlink control channel (PDCCH) and / or a physical uplink control channel (PUCCH) used for cellular communications with the base station 110 via an access link or access channel. The PSSCH 320 may be used to transmit data, similar to a physical downlink shared channel (PDSCH) and / or a physical uplink shared channel (PUSCH) used for cellular communications with the base station 110 via an access link or access channel. For example, the PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information for sidelink communications, such as one or more resources (e.g., time resources, frequency resources, and / or space resources), wherein a transport block (TB) 335a may be carried on the PSSCH 320. The TB 335a may include data. As shown in FIG. Figure 3 As shown and as described herein, TB 335a may be sent along with a control element (e.g., MAC layer control element (MAC-CE) 335b) indicating one or more resource reservations (e.g., received by UE 305-1 and / or UE 305-2 and / or generated by a medium access control (MAC) layer of UE 305-1 and / or UE 305-2). PSFCH 325 may be used to transmit sidelink feedback 340, such as hybrid automatic repeat request (HARQ) feedback (e.g., acknowledgement or negative acknowledgement (ACK / NACK) information), transmission power control (TPC), and / or scheduling request (SR).

[0061] Although shown on PSCCH 315, in some aspects, SCI 330 may 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, an indication of one or more resources (e.g., time resources, frequency resources, and / or space resources) on PSSCH 320, information for decoding sidelink communications on PSSCH, quality of service (QoS) priority value, resource reservation period, PSSCH DMRS mode, SCI format for SCI-2, beta offset for SCI-2, number of PSSCH DMRS ports, and / or modulation and coding scheme (MCS). SCI-2 may include information associated with data transmission on PSSCH 320, such as a hybrid automatic repeat request (HARQ) process ID, a new data indicator (NDI), a source identifier, a destination identifier, and / or a channel state information (CSI) report trigger.

[0062] In some aspects, one or more sidelink channels 310 may use a resource pool. For example, a scheduling assignment (e.g., included in SCI 330) may be transmitted in a subchannel across time using specific resource blocks (RBs). In some aspects, a data transmission associated with a scheduling assignment (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, a scheduling assignment and an associated data transmission are not transmitted on adjacent RBs.

[0063] 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., rather than 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 associated with various sidelink channels (e.g., sidelink RSSI (S-RSSI) parameters); may measure RSRP parameters associated with various sidelink channels (e.g., PSSCH-RSRP parameters); and / or may measure RSRQ parameters associated with various sidelink channels (e.g., PSSCH-RSRQ parameters); and may select a channel for transmitting sidelink communications based at least in part on the measurements.

[0064] Additionally or alternatively, the UE 305 may perform resource selection and / or scheduling using the SCI 330 received in the PSCCH 315, which may indicate occupied resources and / or channel parameters. Additionally or alternatively, the UE 305 may perform resource selection and / or scheduling by determining a channel busy rate (CBR) associated with each sidelink channel, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that the UE 305 may use for a particular set of subframes).

[0065] In a transmission mode in which resource selection and / or scheduling is performed by the UE 305, the UE 305 may generate a sidelink grant and may transmit the grant in the SCI 330. The sidelink grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks (e.g., for TB 335a) to be used for an upcoming sidelink transmission on the PSSCH 320, one or more subframes to be used for an upcoming sidelink transmission, and / or an MCS to be used for an upcoming sidelink transmission. In some aspects, the UE 305 may generate a sidelink grant indicating one or more parameters (such as the periodicity of the sidelink transmission) for semi-persistent scheduling (SPS). Additionally or alternatively, the UE 305 may generate a sidelink grant for event-driven scheduling, such as for an on-demand sidelink message.

[0066] As indicated above, Figure 3 Provided as an example only. Other examples may be found in the Figure 3 Different than described.

[0067] Figure 4 4 is a diagram illustrating an example 400 of side link communications and access link communications according to the present disclosure. Figure 4 As shown, the transmitter (Tx) / receiver (Rx) UE 405 and the Rx / Tx UE 410 can communicate with each other via a side link, as described above in conjunction with Figure 3 As further shown, in some sidelink modes, the base station 110 may communicate with the Tx / Rx UE 405 via a first access link. Additionally or alternatively, in some sidelink modes, the base station 110 may communicate with the Rx / Tx UE 410 via a second access link. The Tx / Rx UE 405 and / or the Rx / Tx UE 410 may correspond to one or more UEs described elsewhere herein, such as Figure 1120. Thus, a direct link between UEs 120 (e.g., via a PC5 interface) may be referred to as a side link, and a direct link between a base station 110 and a UE 120 (e.g., via a Uu interface) may be referred to as an access link. Side link communications may be transmitted via a side link, and access link communications may be transmitted via an access link. Access link communications may be downlink communications (from a base station 110 to a UE 120) or uplink communications (from a UE 120 to a base station 110).

[0068] As indicated above, Figure 4 Provided as an example only. Other examples may be found in the Figure 4 Different than described.

[0069] Figure 5 is a diagram illustrating an example 500 of resource exclusion according to the present disclosure. Figure 5 As shown, a UE (e.g., UE 120) may receive an SCI (e.g., SCI-1 and / or SCI-2) from a nearby device (e.g., another UE), the SCI indicating resources (e.g., frequency resources and / or time resources, such as time resources) to be used by the nearby device within a future resource selection window 501. Figure 5 Additionally or alternatively, UE 120 may receive (e.g., transmitted by a nearby device as an inter-UE coordination message) a resource reservation indicator indicating resources within a future resource selection window 501 to be used by other devices (e.g., devices from which the nearby device receives SCI indicating resources).

[0070] Therefore, if Figure 5 As further shown, UE 120 may apply resource exclusion when determining resources to be used within future resource selection window 501 (e.g., for transmissions to other UEs on sidelink channels, such as in conjunction with Figure 3 and / or Figure 4 In example 500, UE 120 may apply an RSRP value based at least in part on an RSRP associated with a corresponding SCI and / or an inter-UE coordination message. Figure 5 As shown, UE 120 may apply one value (shown as a) to resources associated with one SCI and another value (shown as y) to resources associated with another SCI. Figure 5 As further shown, UE 120 may apply one value (shown as b) to resources associated with one inter-UE coordination message and another value (shown as p) to resources associated with another inter-UE coordination message. Figure 5As shown, or resources are reserved by multiple SCIs and / or multiple inter-UE coordination messages), UE 120 may apply the maximum value of the associated RSRP values ​​(e.g., the maximum value of p or y in example 500). Therefore, UE 120 may generate a possible resource exclusion map 503, such as Figure 5 shown.

[0071] To transmit independent inter-UE coordination messages, the UE consumes sidelink resources. However, transmitting resource reservation information in the inter-UE coordination message increases signaling overhead and may cause increased congestion and interference to other nearby devices (e.g., other UEs). Increased congestion and interference waste processing resources and power because more signals may be lost, which may result in more retransmissions.

[0072] Some techniques and apparatus described herein enable a first UE (e.g., UE 120a) to transmit resource reservation information in a control element (e.g., MAC-CE) along with data. Thus, the first UE 120a transmits resource reservation information along with buffered data in order to save network resources and reduce congestion and interference to nearby devices (e.g., other UEs). Some techniques and apparatus described herein additionally enable a second UE 120b to selectively decode the MAC-CE in order to save power and processing resources. Additionally or alternatively, some techniques and apparatus described herein additionally enable a second UE 120b to apply resource exclusion based at least in part on the MAC-CE in order to increase the chance of successfully receiving a signal at the first UE 120a and / or the second UE 120b, which saves power and processing resources.

[0073] As indicated above, Figure 5 Provided as an example only. Other examples may be found in the Figure 5 Different than described.

[0074] Figure 6 6 is a diagram illustrating an example 600 associated with transmitting a control element indicating resource reservation along with data according to the present disclosure. Figure 6 As shown, example 600 includes SCI 601 (e.g., SCI-1 and / or SCI-2) for reserving resources (e.g., one or more subcarriers, such as subcarrier n and subcarrier n+1) for data transmission 603. For example, a UE (such as UE 120) may reserve resources based at least in part on a buffer of UE 120 (e.g., as combined with Figure 3 and / or Figure 4 Resources are selected based on data 603 in a buffer of data to be transmitted to another UE on a sidelink channel as described.

[0075] like Figure 6As further shown, UE 120 may select resources to use based at least in part on the MCS used for data transmission 603. For example, UE 120 may use an MCS having a value represented by x based on a configuration associated with the sidelink channel and / or measurements associated with the sidelink channel used by UE 120 to determine which MCS values ​​may be used on the sidelink channel.

[0076] To indicate resource reservation to a UE for which data 603 is intended, UE 120 determines a size of a control element (e.g., MAC-CE 605) that can be transmitted with data 603. In some aspects, the size of MAC-CE 605 is based at least in part on a minimum size. For example, the minimum size may be a minimum size required to transmit a single resource reservation indicator (e.g., as combined with Figure 7 The number of bits described includes a list of resource reservation indicators) or transmission (for example, as combined Figure 8 In some aspects, the minimum size is a programmed (and / or otherwise preconfigured) value stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the minimum size may be indicated by a base station (e.g., base station 110, via a radio resource control (RRC) configuration). In a combined example, base station 110 may indicate a value for the minimum size from a plurality of possible values ​​stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0077] Additionally or alternatively, the size of MAC-CE 605 is based at least in part on a maximum size. In some aspects, the maximum size is a programmed (and / or otherwise preconfigured) value stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the maximum size may be indicated by a base station (e.g., base station 110, via RRC configuration). In a combined example, base station 110 may indicate a value for the maximum size from a plurality of possible values ​​stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0078] By encoding the MAC-CE 605 within the resources reserved for the data 603, the MCS used for the data transmission 603 is increased. For example, the UE 120 may use an MCS having a value represented by x+α, where α represents the increase caused by encoding the MAC-CE 605 with the data 603. In order to maintain sufficient reliability of the data 603 when transmitting, the UE 120 determines a maximum MCS increase (e.g., represented by α0), which is used to determine the size of the MAC-CE 605 that can be transmitted with the data 603.

[0079] In some aspects, the maximum MCS increase may be a programmed (and / or otherwise preconfigured) value stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the maximum MCS increase may be indicated by a base station (e.g., base station 110, via RRC configuration). In a combined example, base station 110 may indicate a value for the maximum MCS increase from a plurality of possible values ​​stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0080] Additionally or alternatively, UE 120 may determine the maximum MCS increase based at least in part on a priority associated with data 603. For example, when the priority is higher, the maximum MCS increase may be smaller. In some aspects, UE 120 may be programmed (and / or otherwise preconfigured) with a table, formula, and / or another algorithm in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard), wherein the algorithm accepts a priority as an input and outputs a maximum MCS increase to be used. Additionally or alternatively, the algorithm may be indicated by a base station (e.g., base station 110, via RRC configuration). For example, base station 110 may indicate an algorithm to be used from a plurality of possible algorithms stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0081] Additionally or alternatively, UE 120 may determine the maximum MCS increase based at least in part on a retransmission count associated with data 603. For example, when the retransmission count is higher, the maximum MCS increase may be smaller. In some aspects, UE 120 may be programmed (and / or otherwise preconfigured) with a table, formula, and / or another algorithm in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard), wherein the algorithm accepts a retransmission count as an input and outputs a maximum MCS increase to be used. Additionally or alternatively, the algorithm may be indicated by a base station (e.g., base station 110, via RRC configuration). For example, base station 110 may indicate an algorithm to be used from a plurality of possible algorithms stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0082] Additionally or alternatively, the UE 120 may determine the maximum MCS increase based at least in part on whether resource reservation for the data 603 has been indicated in a previous transmission (e.g., a previous SCI (such as SCI-1) reserved resources for transmitting the data 603). For example, when resource reservation for the data 603 has not been indicated in a previous transmission, the maximum MCS increase may be smaller. In some aspects, the UE 120 may be programmed (and / or otherwise preconfigured) with a table, formula, and / or another algorithm in a memory of the UE 120 (e.g., in accordance with a 3GPP specification and / or another standard), wherein the algorithm outputs a maximum MCS increase to be used based on whether resource reservation for the data 603 has been indicated in a previous transmission. Additionally or alternatively, the algorithm may be indicated by a base station (e.g., the base station 110, via an RRC configuration). For example, the base station 110 may indicate the algorithm to be used from a plurality of possible algorithms stored in a memory of the UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0083] In some aspects, the UE 120 may encode the MAC-CE 605 within one or more padding bits of the data 603. For example, the data 603 may include one or more zeros or ones that pad the beginning, middle, or end of the data 603. Thus, in some aspects, the UE 120 may encode the MAC-CE 605 without increasing the MCS associated with the data 603 (e.g., α=0). Thus, in some aspects, the maximum MCS increase may be set to zero (e.g., α0=0), such that the MAC-CE 605 is transmitted with the data 603 only when the data 603 includes one or more padding bits (and in some aspects, includes enough padding bits to satisfy the minimum size of the MAC-CE 605, as described above).

[0084] By using such as combining Figure 6 With the described technique, the UE 120 transmits resource reservation information in the MAC-CE 605 along with the data 603. Thus, the UE 120 saves network resources and reduces congestion and interference to nearby devices (eg, other UEs).

[0085] As indicated above, Figure 6 Provided as an example only. Other examples may be found in the Figure 6 Different than described.

[0086] Figure 7 is a diagram illustrating an example 700 associated with a control element indicating resource reservation according to the present disclosure. Figure 7 As shown, example 700 includes a list 701 that includes one or more resource reservation indicators. Figure 7As further shown, list 701 may indicate at least one resource reservation selected from a plurality of resource reservations.

[0087] In some aspects, a UE (e.g., UE 120) may select at least one resource reservation to indicate in list 701 based at least in part on the times associated with the plurality of resource reservations. Figure 7 As shown, two resource reservations are associated with time slots and / or symbols associated with an index denoted by t+n, where t represents the time slot and / or symbol in which the UE 120 is performing the selection. Thus, in example 700, the two resource reservations associated with time slot and / or symbol t+n take precedence over resource reservations associated with time slots and / or symbols t+n+1, t+n+4, t+n+6, t+n+10, etc.

[0088] Additionally or alternatively, the UE 120 may select at least one resource reservation to be indicated in the list 701 based at least in part on a signal strength (e.g., RSRP measurement) and / or quality (e.g., RSRQ parameter) associated with indicators of the plurality of resource reservations. For example, the UE 120 may prioritize resource reservations received in signals with higher RSRP and / or RSRQ (e.g., in an SCI and / or inter-UE coordination message). In some aspects, the UE 120 may combine time with signal strength / quality to perform the selection. For example, the UE 120 may prioritize by time (as described above) and use signal strength / quality to break any ties (e.g., prioritize between resource reservations associated with the same time slot and / or symbol). In another example, the UE 120 may prioritize by signal strength / quality and use time to break any ties (e.g., prioritize between resource reservations associated with the same signal strength / quality). In another example, UE 120 can calculate a score based at least in part on a combination of time and signal strength / quality and prioritize resource reservations by the score.

[0089] Additionally or alternatively, the UE 120 may select at least one resource reservation to be indicated in the list 701 based at least in part on a distance between the UE 120 and one or more additional UEs associated with the plurality of resource reservations (e.g., UEs from which the resource reservations are received in an SCI and / or inter-UE coordination message). For example, the UE 120 may prioritize resource reservations received from UEs that are closer to the UE 120. In some aspects, the UE 120 may combine distance with time and / or signal strength / quality to perform the selection. For example, the UE 120 may prioritize by time (as described above) and use distance to break any ties (e.g., prioritize between resource reservations associated with the same time slot and / or symbol). In another example, the UE 120 may prioritize by distance and use time to break any ties (e.g., prioritize between resource reservations associated with the same distance). In another example, UE 120 can calculate a score based at least in part on a combination of two or more of time, signal strength / quality, and distance, and prioritize resource reservations by the score.

[0090] In some aspects, UE 120 may also select at least one resource reservation to be indicated in list 701 based at least in part on whether UE 120 is an intended recipient of a signal associated with at least one resource reservation. For example, UE 120 may apply an exception such that resource reservations for which UE 120 is an intended recipient are included regardless of the time, signal strength / quality, and / or distance associated with the resource reservation. In another example, UE 120 may calculate a score as described above and increase the score of the resource reservations for which UE 120 is an intended recipient.

[0091] In some aspects, the UE 120 may also select at least one resource reservation to be indicated in the list 701 based at least in part on the hop counts associated with the indicators of the multiple resource reservations. For example, the UE 120 may prioritize resource reservations received from UEs that reserve resources for themselves (e.g., by transmitting an SCI) and are therefore associated with a zero hop count, compared to resource reservations received from UEs that forward resource reservations from other UEs and are therefore associated with a hop count of one or more (e.g., by transmitting or forwarding an inter-UE coordination message). In one example, the UE 120 may use the hop count to break ties within the prioritization based on one or more of the above factors. In another example, the UE 120 may calculate a score as described above and increase the score of the resource reservation associated with the lower hop count.

[0092] In some aspects, UE 120 may also select at least one resource reservation to be indicated in list 701 based at least in part on a periodicity associated with an indicator of a plurality of resource reservations. For example, UE 120 may prioritize aperiodic resource reservations compared to periodic resource reservations. Thus, periodic resource reservations may be reported in future control elements. Additionally or alternatively, UE 120 may prioritize resource reservations with shorter periods. Resource reservations with shorter periods are more likely to cause persistent interference than resource reservations with longer periods, and are therefore more likely to waste processing resources and power. In one example, UE 120 may use periodicity to break ties within prioritization based on one or more of the above factors. In another example, UE 120 may calculate scores as described above, and increase the scores of resource reservations that are aperiodic and / or associated with smaller periodicity.

[0093] Thus, UE 120 may include a control element of list 701 based on the size of the control element (e.g., where the size is combined with Figure 6 The number of resource reservations (eg, denoted by N) is selected by determining as described. In example 500, N=5, so that five resource reservations of the received plurality of resource reservations are indicated in list 701.

[0094] By using such as combining Figure 7 With the described technique, the UE 120 transmits resource reservation information in a list included in a MAC-CE along with data. Thus, the UE 120 saves network resources and reduces congestion and interference to nearby devices (eg, other UEs).

[0095] As indicated above, Figure 7 Provided as an example only. Other examples may be found in the Figure 7 Different than described.

[0096] Figure 8 8 is a diagram illustrating an example 800 associated with a control element indicating resource reservation according to the present disclosure. Figure 8 As shown, example 800 includes a bitmap 801 that includes one or more resource reservation indicators. For example, when at least one resource is reserved in a time slot / symbol and subchannel (and / or subcarrier and / or frequency range) associated with a bit of bitmap 801, the bit may be encoded as "1" or "true". Similarly, when no resource is reserved in a time slot / symbol and subchannel (and / or subcarrier and / or frequency range) associated with a bit of bitmap 801, the bit may be encoded as "0" or "false".

[0097] In some aspects, the size of the bitmap 801 may be fixed. For example, the size may be based on the number of subchannels (and / or subcarriers and / or frequency ranges) (e.g., N SC ) and the number of time slots (and / or symbols) (e.g., represented by N TTI Alternatively, the size of the bitmap 801 may be based at least in part on the size of the control element that will include the bitmap 801 (e.g., where the size is combined with Figure 6 For example, the bitmap 801 may indicate a variable number of time slots (and / or symbols) that increases as the size of the control element increases (e.g., determined by N i express).

[0098] In addition, the bitmap 801 may be associated with a starting time slot (and / or a starting symbol and / or a starting subframe index) (e.g., In some aspects, the starting time slot, symbol and / or subframe is associated with a time slot, symbol and / or subframe index, such as an offset from a current time slot, symbol and / or subframe, based on a programmed (and / or otherwise preconfigured) value stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the starting time slot, symbol and / or subframe index may be indicated in the control information. Additionally or alternatively, the starting time slot, symbol and / or subframe index may be indicated by a base station (e.g., base station 110, via RRC configuration). In some aspects, base station 110 may indicate an offset for a starting time slot, symbol and / or subframe index from a plurality of possible offsets stored in a memory of UE 120 (e.g., in accordance with a 3GPP specification and / or another standard).

[0099] In some aspects, bitmap 801 may indicate one or more non-periodic resource reservations. Additionally or alternatively, bitmap 801 may indicate one or more periodic resource reservations. Thus, bitmap 801 may be associated with a single periodicity, and UE 120 may transmit (e.g., as described in accordance with Figure 6 One or more additional bitmaps associated with one or more additional periodicities (as permitted by the size of the control element determined).

[0100] In some aspects, the UE 120 may select the resource reservations associated with the shortest periodicity to be included in the bitmap 801 and discard the resource reservations associated with the longer periodicity. Thus, the UE 120 may prioritize the resource reservations according to periodicity. Additionally or alternatively, the UE 120 may select the resource reservations associated with the highest priority to be included in the bitmap 801 and include additional resource reservations associated with the same periodicity as the resource reservation associated with the highest priority. Thus, the UE 120 may prioritize the resource reservations according to priority.

[0101] Alternatively, UE 120 may transmit a bitmap indicating resource reservations associated with different periodicities. For example, UE 120 may select resource reservations associated with a first periodicity to be indicated in the bitmap, and additionally select resource reservations associated with a periodicity less than the first periodicity to be indicated in the bitmap. In some aspects, UE 120 may indicate resource reservations associated with different periodicities when one of the different periodicities is an integer multiple of another of the different periodicities.

[0102] By using such as combining Figure 8 With the described technique, the UE 120 transmits resource reservation information in a bitmap included in a MAC-CE along with data. Thus, the UE 120 saves network resources and reduces congestion and interference to nearby devices (eg, other UEs).

[0103] As indicated above, Figure 8 Provided as an example only. Other examples may be found in the Figure 8 Different than described.

[0104] Fig. 9 is a diagram illustrating an example 900 associated with transmitting and receiving resource reservation information together with data according to the present disclosure. Fig. 9 As shown, UE 120a and UE 120b may communicate (e.g., on a sidelink channel, such as in conjunction with Figure 3 and / or Figure 4 described) communicate with each other.

[0105] As indicated by reference numeral 905, the first UE 120a may receive one or more indicators corresponding to one or more resource reservations from one or more additional UEs. For example, the first UE 120a may receive an SCI and / or an inter-UE coordination message indicating the resource reservations.

[0106] As indicated by reference numeral 910, the first UE 120a may transmit and the second UE 120b may receive data and at least one resource reservation indicated with the data in a control element (e.g., MAC-CE) (e.g., a resource reservation as indicated by a message received by the first UE 120a, as described in conjunction with reference numeral 905). For example, the first UE 120a may determine the size of the MAC-CE, as described in conjunction with Figure 6 As described above, the MAC-CE may be encoded with data. In some aspects, the MAC-CE may additionally indicate resource reservations associated with the MAC layer of the first UE 120a. Thus, the first UE 120a may forward indicators of resource reservations received from additional UEs and transmit indicators of resource reservations for the first UE 120a.

[0107] In some aspects, the MAC-CE may further indicate whether the first UE 120a is intended to receive a signal associated with at least one resource reservation. For example, when the resource reservation associated with the bit (e.g., set to "1" or "true") is associated with a signal that the first UE 120a is intended to receive, the first UE 120a may include the bit. Additionally or alternatively, the MAC-CE may further indicate a measurement of signal strength (e.g., RSRP value) and / or quality (e.g., RSRQ value) associated with at least one resource reservation. Additionally or alternatively, the MAC-CE may further indicate a distance associated with an additional UE from which the first UE 120a receives at least one resource reservation (e.g., the distance associated with the MAC layer of the first UE 120a may be zero). Additionally or alternatively, the MAC-CE may further indicate identification information associated with the additional UE (e.g., UE ID, destination ID, source ID, area ID, and / or other ID).

[0108] In some aspects, the first UE 120a may determine whether to include in the control element (e.g., as combined with Figure 8 described) or (for example, as combined with Figure 7 In some aspects, the selection between the bitmaps or lists may be programmed (and / or otherwise preconfigured) in a memory of the UE 120a (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the selection between the bitmaps or lists may be indicated by a base station (e.g., base station 110, via RRC configuration).

[0109] Alternatively, the first UE 120a may dynamically determine whether to include in the control element (e.g., as combined with Figure 8 described) or (for example, as combined with Figure 7 For example, the first UE 120a may perform the determination based at least in part on whether the at least one resource reservation is periodic or aperiodic. For example, the first UE 120a may use a list for periodic reservations and a bitmap for aperiodic reservations.

[0110] Additionally or alternatively, the first UE 120a may perform the determination based at least in part on the size of the control element. For example, the first UE 120a may use a bitmap for smaller sizes (e.g., not satisfying a size threshold) and a list for larger sizes (e.g., satisfying a size threshold).

[0111] In some aspects, the second UE 120b may receive data and decode the control element only when the second UE 120b is the intended recipient of the data. Alternatively, the second UE 120b may always decode the control element even when the second UE 120b is not the intended recipient of the data. For example, the first UE 120a may transmit and the second UE 120b may receive the SCI associated with the data. Therefore, in some aspects, the first UE 120a may include at least one bit in the SCI indicating that the control element will be transmitted together with the data so that the second UE 120b is aware that the control element should be decoded.

[0112] In another example, the first UE 120a may include at least one bit in the SCI indicating that the control element will be transmitted together with the data and an indication of the type of transmission (e.g., unicast, multicast, or broadcast). In some aspects, the first UE 120a may indicate that the control element will be transmitted together with the data in SCI-1 and indicate the type of transmission in SCI-2. Therefore, the second UE 120b decodes the control element based at least in part on the type of transmission. The second UE 120b may decode the unicast control element when the second UE 120b is the intended recipient, may decode the multicast control element when the second UE 120b is included in the UE group receiving the multicast, and may always decode the broadcast control element.

[0113] As indicated by reference numeral 915, the second UE 120b may use at least one resource reservation to perform resource exclusion (e.g., for transmissions to another UE and / or to the first UE 120a). The second UE 120b may perform as described in conjunction with Figure 4 The resource described is excluded.

[0114] In some aspects, at least one resource reservation may be associated with a signal that the second UE 120b is intended to receive (e.g., as indicated by a MAC-CE, as described above). Thus, the second UE 120b may perform resource exclusion based at least in part on the signal strength (e.g., RSRP value) of the SCI associated with the control element (e.g., as measured by the second UE 120b). In some aspects, resource exclusion may be further based at least in part on applying an increment to the signal strength value. For example, when determining a candidate resource set for transmission, the second UE 120b may apply a higher resource exclusion RSRP value because the second UE 120b is intended to receive a signal associated with at least one resource reservation. In some aspects, the increment of the signal strength applied to the resource exclusion may be a programmed (and / or otherwise preconfigured) value stored in a memory of the UE 120b (e.g., according to a 3GPP specification and / or another standard). Additionally or alternatively, the increment may be indicated by a base station (e.g., base station 110, via RRC configuration). In a combined example, the base station 110 may indicate a value for the signal strength increment from a plurality of possible values ​​stored in a memory of the UE 120b (eg, according to a 3GPP specification and / or another standard).

[0115] In some aspects, the increment of signal strength is based at least in part on a priority associated with at least one resource reservation.For example, for some high priority values ​​(eg, satisfying a priority threshold), the second UE 120b may perform resource exclusion with increments set to infinity.

[0116] Additionally or alternatively, at least one resource reservation may be associated with a signal that the first UE 120a is intended to receive (e.g., as indicated by the MAC-CE, as described above). Thus, the second UE 120b may perform resource exclusion based at least in part on a reported signal strength (e.g., an RSRP value) associated with at least one resource reservation (e.g., as indicated in the MAC-CE, as described above). Additionally or alternatively, the second UE 120b may perform resource exclusion based at least in part on a historical signal strength (e.g., associated with the first UE 120a and / or associated with a UE associated with at least one resource reservation as indicated in the MAC-CE, as described above). Additionally or alternatively, the second UE 120b may perform resource exclusion based at least in part on a default value. In some aspects, the default value may be a programmed (and / or otherwise preconfigured) value stored in a memory of the UE 120b (e.g., in accordance with a 3GPP specification and / or another standard). Additionally or alternatively, the default value may be indicated by a base station (e.g., base station 110, via RRC configuration). In a combined example, base station 110 may indicate a value for the default value from a plurality of possible values ​​stored in a memory of UE 120b (e.g., according to 3GPP specifications and / or another standard).

[0117] In some aspects, UE 120b may determine a default value based at least in part on a priority associated with at least one resource reservation. For example, when the priority is higher, the default value may be higher. In some aspects, UE 120 may be programmed (and / or otherwise preconfigured) with a table, formula, and / or another algorithm in a memory of UE 120b (e.g., according to a 3GPP specification and / or another standard), wherein the algorithm accepts a priority as an input and outputs a default value to be used. Additionally or alternatively, the algorithm may be indicated by a base station (e.g., base station 110, via RRC configuration). For example, base station 110 may indicate an algorithm to be used from a plurality of possible algorithms stored in a memory of UE 120b (e.g., according to a 3GPP specification and / or another standard).

[0118] In some aspects, at least one resource reservation may be associated with a signal that neither the first UE 120a nor the second UE 120b is intended to receive. Therefore, the second UE 120b may perform resource exclusion based at least in part on a default value. For a resource reservation associated with a signal that the first UE 120a is intended to receive, the default value may be less than the default value associated with resource exclusion, as described above. In some aspects, the default value may be a programmed (and / or otherwise preconfigured) value stored in a memory of UE 120b (e.g., according to a 3GPP specification and / or another standard). Additionally or alternatively, the default value may be indicated by a base station (e.g., base station 110, via RRC configuration). In a combined example, the base station 110 may indicate a value for a default value from a plurality of possible values ​​stored in a memory of UE 120b (e.g., according to a 3GPP specification and / or another standard).

[0119] In some aspects, UE 120b may determine a default value based at least in part on a priority associated with at least one resource reservation. For example, when the priority is higher, the default value may be higher. In some aspects, UE 120b may be programmed (and / or otherwise preconfigured) using a table, formula, and / or another algorithm in a memory of UE 120 (e.g., according to a 3GPP specification and / or another standard), wherein the algorithm accepts a priority as an input and outputs a default value to be used. Additionally or alternatively, the algorithm may be indicated by a base station (e.g., base station 110, via RRC configuration). For example, base station 110 may indicate the algorithm to be used from a plurality of possible algorithms stored in a memory of UE 120b (e.g., according to a 3GPP specification and / or another standard).

[0120] In some aspects, the at least one resource reservation may be associated with resources that the second UE 120b intends to use for transmission to the first UE 120a. Accordingly, the second UE 120b may exclude full time slots associated with the at least one resource reservation. In some aspects, the second UE 120b may exclude full time slots based at least in part on a reported signal strength (e.g., RSRP value) associated with the at least one resource reservation (e.g., as indicated in the MAC-CE, as described above) satisfying a signal strength threshold.

[0121] As shown in reference numeral 920, the second UE 120b may transmit and the first UE 120a may receive feedback associated with the data and not associated with the control element. For example, the second UE 120b may transmit HARQ feedback indicating whether the data was successfully received and decoded, regardless of whether the control element was successfully received and decoded. Alternatively, the second UE 120b may transmit and the first UE 120a may receive feedback associated with the data and the control element. For example, the second UE 120b may transmit HARQ feedback indicating whether both the data and the control element were successfully received and decoded.

[0122] By using such as combining Fig. 9 According to the described technology, the first UE 120a transmits the resource reservation information in the MAC-CE together with the data. Therefore, the first UE 120a saves network resources and reduces congestion and interference to nearby devices (e.g., other UEs). In addition, in some aspects, the second UE 120b selectively decodes the MAC-CE based on the broadcast type to save power and processing resources. In some aspects, the second UE 120b applies resource exclusion based on the MAC-CE at least in part to increase the chance of successfully receiving the signal at the first UE 120a and / or the second UE 120b, which saves power and processing resources.

[0123] As indicated above, Fig. 9 Provided as an example only. Other examples may be found in the Fig. 9 Different than described.

[0124] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a first UE according to the present disclosure. Example process 1000 is a UE (e.g., UE 120a and / or Fig.12 An example of a device 1200) performing operations associated with associating resource reservation information with data sharing.

[0125] like Fig.10 As shown, process 1000 may include receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs (block 1010). Fig.12 The communication manager 140 and / or receiving component 1202 depicted in FIG. 1 may receive one or more indicators corresponding to one or more resource reservations from one or more additional UEs, as described herein.

[0126] like Fig.10 As further shown, in some aspects, process 1000 may include sending a signal to a second UE (e.g., UE 120b and / or Fig.121200) transmits data (block 1020). For example, a UE (e.g., using Fig.12 The communication manager 140 and / or the transmission component 1204 depicted in the sidelink channel can transmit data to the second UE on the sidelink channel, as described herein. At least one of the one or more resource reservations can be indicated in a control element transmitted with the data.

[0127] 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.

[0128] In a first aspect, process 1000 also includes, before encoding the control element (e.g., using Fig.12 The communication manager 140 and / or selection component 1208 depicted in FIG. 1 selects resources for transmitting data.

[0129] In a second aspect, alone or in combination with the first aspect, a size of the control element is based at least in part on a minimum size.

[0130] In a third aspect, alone or in combination with one or more of the first and second aspects, the minimum size is a number of bits associated with indicating a single resource reservation.

[0131] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the minimum size is a number of bits associated with a bitmap for indicating at least one resource reservation of the one or more resource reservations.

[0132] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the size of the control element is based at least in part on the maximum size.

[0133] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, a size of the control element is based at least in part on a maximum MCS increase.

[0134] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the maximum MCS increase is based at least in part on a priority associated with the data.

[0135] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the maximum MCS increase is based at least in part on a retransmission count associated with the data.

[0136] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the maximum MCS increase is based at least in part on whether resource reservation for the data has been indicated in a previous transmission.

[0137] In a tenth aspect, either alone or in combination with one or more of aspects one to nine, process 1000 further comprises (e.g., using communications manager 140 and / or transport component 1204) transmitting an SCI associated with the data, the SCI comprising at least one bit indicating that a control element will be transmitted with the data.

[0138] In an eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the process 1000 further comprises transmitting (e.g., using the communication manager 140 and / or the transmission component 1204) an SCI associated with the data, the SCI indicating that the control element is to be transmitted with the data and indicating a broadcast type associated with the control element.

[0139] In a twelfth aspect, either alone or in combination with one or more of aspects 1 to eleven, process 1000 further comprises transmitting (e.g., using communication manager 140 and / or transmission component 1204) an SCI-1 associated with the data, the SCI-1 indicating that the control element will be transmitted with the data, and transmitting (e.g., using communication manager 140 and / or transmission component 1204) an SCI-2 associated with the data, the SCI-2 indicating a broadcast type associated with the control element.

[0140] In a thirteenth aspect, either alone or in combination with one or more of aspects one to twelve, process 1000 also includes receiving feedback associated with data and not associated with a control element from a second UE (eg, using communication manager 140 and / or receiving component 1202).

[0141] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the process 1000 further comprises receiving feedback associated with the data and control elements from the second UE (eg, using the communication manager 140 and / or the receiving component 1202).

[0142] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the one or more resource reservations include multiple resource reservations, and the control element includes a list selected from the multiple resource reservations based at least in part on: time associated with the multiple resource reservations, signaling strength or quality associated with indicators of the multiple resource reservations, a distance between the first UE and one or more additional UEs associated with the multiple resource reservations, or a combination thereof.

[0143] In the sixteenth aspect, either alone or in combination with one or more of the first to fifteenth aspects, the list selected from the multiple resource reservations is further based at least in part on whether the first UE is an intended recipient of a signal associated with one or more of the multiple resource reservations, a hop count associated with an indicator of the multiple resource reservations, a periodicity associated with the multiple resource reservations, or a combination thereof.

[0144] In the seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the control element further indicates whether the first UE intends to receive signals associated with one or more of the multiple resource reservations, measurements of signal strength or quality associated with the multiple resource reservations, distances associated with one or more additional UEs, identification information associated with one or more additional UEs, or a combination thereof.

[0145] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the one or more resource reservations include a resource reservation associated with a MAC layer of the first UE.

[0146] In a nineteenth aspect, either alone or in combination with one or more of the first to eighteenth aspects, the control element comprises a bitmap indicating at least one resource reservation of the one or more resource reservations.

[0147] In a twentieth aspect, either alone or in combination with one or more of the first to nineteenth aspects, the bitmap is based at least in part on a fixed bit size associated with the bitmap.

[0148] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the fixed bit size is based at least in part on the number of subchannels and the number of time slots.

[0149] In a twenty-second aspect, either alone or in combination with one or more of the first to twenty-first aspects, the bitmap is based at least in part on a size associated with the control element.

[0150] In a twenty-third aspect, either alone or in combination with one or more of the first to twenty-second aspects, the number of time slots indicated in the bitmap is based at least in part on a size associated with the control element.

[0151] In a twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, the bitmap is associated with one or more first periodicities, and the control element further comprises at least one additional bitmap associated with one or more second periodicities.

[0152] In a twenty-fifth aspect, either alone or in combination with one or more of aspects one to twenty-fourth, the bitmap is associated with a first periodicity associated with one or more resource reservations, the first periodicity being less than a second periodicity associated with the one or more resource reservations.

[0153] In a twenty-sixth aspect, either alone or in combination with one or more of the first to twenty-fifth aspects, the bitmap is associated with a first priority associated with one or more resource reservations, the first priority being higher than a second priority associated with the one or more resource reservations.

[0154] In a twenty-seventh aspect, either alone or in combination with one or more of the first to twenty-sixth aspects, a bitmap is associated with a first periodicity associated with one or more resource reservations and a second, smaller periodicity associated with the one or more resource reservations.

[0155] In a twenty-eighth aspect, alone or in combination with one or more of the first to twenty-seventh aspects, the bitmap is associated with a starting time slot, a subframe index, or a combination thereof.

[0156] In a twenty-ninth aspect, alone or in combination with one or more of the first to twenty-eighth aspects, process 1000 further comprises (for example, using Fig.12 The communication manager 140 and / or determination component 1210 depicted in FIG. 12A determines whether to include a bitmap or a list in the control element.

[0157] In a thirtieth aspect, either alone or in combination with one or more of aspects one to twenty-ninth, the determination is based at least in part on whether at least one of the one or more resource reservations is periodic or non-periodic.

[0158] In a thirty-first aspect, alone or in combination with one or more of the first to thirtieth aspects, the determination is based at least in part on a size of the control element.

[0159] Although Fig.10 An exemplary block diagram of process 1000 is shown, but in some aspects, process 1000 may include Fig.10 The blocks depicted in the process 1000 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1000. Additionally or alternatively, two or more of the blocks in the process 1000 may be performed in parallel.

[0160] Fig.11 1 is a diagram illustrating an example process 1100 performed, for example, by a first UE according to the present disclosure. The example process 1100 is a UE (e.g., UE 120b and / or Fig.12An example of a device 1200) performing operations associated with receiving resource reservation information together with data.

[0161] like Fig.11 As shown, in some aspects, process 1100 may include receiving, from a second UE (e.g., UE 120 and / or Fig.12 1200) and receives data on a sidelink channel (block 1110). For example, a UE (e.g., using Fig.12 The communication manager 140 and / or receiving component 1202 depicted in FIG. 1 may receive data from a second UE and on a sidelink channel, as described herein. At least one resource reservation may be indicated within a control element received with the data.

[0162] like Fig.11 As further shown, in some aspects, process 1100 may include transmitting on a sidelink channel based at least in part on resource exclusion using at least one resource reservation (block 1120). Figure 1 The communication manager 140 and / or the transmission component 1204 depicted in FIG. 1 can transmit on the side link channel based at least in part on resource exclusion using at least one resource reservation, as described herein.

[0163] 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.

[0164] In a first aspect, a control element is decoded based at least in part on a first UE being an intended receiver of data.

[0165] In a second aspect, alone or in combination with the first aspect, process 1100 also includes receiving (eg, using communication manager 140 and / or receiving component 1202) an SCI associated with the data, the SCI including at least one bit indicating that a control element is to be transmitted with the data.

[0166] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1100 also includes receiving (e.g., using communication manager 140 and / or receiving component 1202) an SCI associated with the data, the SCI indicating that the control element is to be transmitted with the data and indicating a broadcast type associated with the control element, such that the control element is decoded based at least in part on the broadcast type.

[0167] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the process 1100 further comprises (e.g., using the communication manager 140 and / or the receiving component 1202) receiving an SCI-1 associated with the data, the SCI-1 indicating that the control element is to be transmitted with the data, and (e.g., using Fig.12 The communication manager 140 and / or receiving component 1202 depicted in FIG. 1 receives an SCI-2 associated with the data, the SCI-2 indicating a broadcast type associated with the control element, so that the control element is decoded based at least in part on the broadcast type.

[0168] In a fifth aspect, either alone or in combination with one or more of aspects 1 to 4, process 1100 also includes transmitting feedback associated with data and not associated with a control element to a second UE (eg, using communications manager 140 and / or transmission component 1204).

[0169] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 1100 also includes transmitting feedback associated with the data and control elements to a second UE (eg, using communication manager 140 and / or transmission component 1204).

[0170] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, at least one resource reservation is associated with a signal that the first UE intends to receive.

[0171] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, resource exclusion is based at least in part on a signal strength of an SCI associated with the control element.

[0172] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, resource exclusion is based at least in part on a signal strength delta.

[0173] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the signal strength increment is based at least in part on a priority associated with at least one resource reservation.

[0174] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, at least one resource reservation is associated with a signal that the second UE intends to receive.

[0175] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, resource exclusion is based at least in part on a reported signal strength associated with at least one resource reservation.

[0176] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, resource exclusion is based at least in part on historical signal strength.

[0177] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, resource exclusion is based at least in part on a default value.

[0178] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the default value is based at least in part on a priority associated with at least one resource reservation.

[0179] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, at least one resource reservation is associated with a signal that neither the first UE nor the second UE is intended to receive.

[0180] In the seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, at least one resource reservation is associated with resources intended by the first UE to transmit to the second UE, and the resource exclusion includes a full time slot associated with the at least one resource reservation.

[0181] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, resource exclusion is based at least in part on a reported signal strength associated with at least one resource reservation satisfying a threshold.

[0182] Although Fig.11 An exemplary block diagram of process 1100 is shown, but in some aspects, process 1100 may include Fig.11 The blocks depicted in the process 1100 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1100. Additionally or alternatively, two or more blocks in the blocks of the process 1100 may be performed in parallel.

[0183] Fig.12 1 is a diagram of an example apparatus 1200 for wireless communication. Apparatus 1200 may be a UE, or a UE may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include a communication manager 140. Communication manager 140 may include one or more of a selection component 1208, a determination component 1210, or a resource exclusion component 1212, among others.

[0184] In some aspects, the apparatus 1200 may be configured to perform Figures 5 to 9 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Fig.10 The process of 1000 Fig.11 In some aspects, the apparatus 1200 and / or Fig.12 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig.12 One or more of the components shown may be combined Figure 2 Additionally or alternatively, one or more of the set of components may be implemented at least in part as software stored in a 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 the component.

[0185] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1206. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the device 1200. In some aspects, the receiving component 1202 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.

[0186] The transmission component 1204 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1206. In some aspects, one or more other components of the device 1200 may generate communications and may provide the generated communications to the transmission component 1204 for transmission to the device 1206. In some aspects, the transmission component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1206. In some aspects, the transmission component 1204 may include a combination of Figure 2One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmitting component 1204 can be collocated with the receiving component 1202 in a transceiver.

[0187] In some aspects, apparatus 1200 can be a transmitting UE on a sidelink channel. Thus, receiving component 1202 can receive (e.g., from one or more additional UEs) one or more indicators corresponding to one or more resource reservations, and transmitting component 1204 can transmit (e.g., to a receiving UE on a sidelink channel, such as apparatus 1206) data and at least one of the one or more resource reservations indicated within a control element transmitted with the data.

[0188] In some aspects, the selection component 1208 can select a resource for transmitting data before encoding the control element. The selection component 1208 can include combining Figure 2 A modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof of a described UE.

[0189] In some aspects, the transmission component 1204 may transmit an SCI associated with the data, the SCI including at least one bit indicating that the control element will be transmitted with the data. In some aspects, the transmission component 1204 may transmit an SCI associated with the data, the SCI indicating that the control element will be transmitted with the data and indicating a type of broadcast associated with the control element. In some aspects, the transmission component 1204 may transmit an SCI-1 associated with the data, the SCI-1 indicating that the control element will be transmitted with the data, and transmit an SCI-2 associated with the data, the SCI-2 indicating a type of broadcast associated with the control element.

[0190] In some aspects, receiving component 1202 may receive feedback associated with data and not associated with control elements (eg, from a receiving UE). Alternatively, receiving component 1202 may receive feedback associated with data and control elements (eg, from a receiving UE).

[0191] In some aspects, the determining component 1210 can determine whether to include a bitmap or a list in the control element. The determining component 1210 can include combining Figure 2 A modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof of a described UE.

[0192] Alternatively, apparatus 1200 can be a receiving UE on a sidelink channel. Thus, receiving component 1202 can receive data (e.g., from a transmitting UE on a sidelink channel, such as apparatus 1206) and at least one resource reservation indicated within a control element received with the data. Thus, transmitting component 1204 can transmit on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation. For example, resource exclusion component 1212 can perform as in conjunction with Figure 4 and / or Fig. 9 The resource exclusion component 1212 may include combining Figure 2 A modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof of a described UE.

[0193] In some aspects, receiving component 1202 may receive an SCI associated with the data, the SCI including at least one bit indicating that the control element will be transmitted with the data. In some aspects, receiving component 1202 may receive an SCI associated with the data, the SCI indicating that the control element will be transmitted with the data and indicating a broadcast type associated with the control element, such that receiving component 1202 decodes the control element based at least in part on the broadcast type. In some aspects, receiving component 1202 may receive an SCI-1 associated with the data, the SCI-1 indicating that the control element will be transmitted with the data; and an SCI-2 associated with the data, the SCI-2 indicating a broadcast type associated with the control element, such that receiving component 1202 decodes the control element based at least in part on the broadcast type.

[0194] In some aspects, transmitting component 1204 may transmit (eg, to a transmitting UE) feedback associated with data and not associated with control elements. Alternatively, transmitting component 1204 may transmit (eg, to a transmitting UE) feedback associated with data and control elements.

[0195] Fig.12 The number and arrangement of components shown are provided as examples only. Fig.12 The components shown may include additional components, fewer components, different components, or components arranged in a different manner. Fig.12 Two or more components shown may be implemented in a single component, or Fig.12 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.12 The illustrated set (one or more) of components may perform the operations described as being performed by Fig.12 Another group of components shown performs one or more functions.

[0196] The following provides an overview of some aspects of the disclosure:

[0197] Aspect 1: A method of wireless communication performed by a first user equipment (UE), comprising: receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; and transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data.

[0198] Aspect 2: The method according to aspect 1 further includes: before encoding the control element, selecting resources for transmitting the data.

[0199] Aspect 3: The method according to any one of aspects 1 to 2, wherein the size of the control element is based at least in part on a minimum size.

[0200] Aspect 4: The method according to aspect 3, wherein the minimum size is the number of bits associated with indicating a single resource reservation.

[0201] Aspect 5: The method according to aspect 3, wherein the minimum size is the number of bits associated with a bitmap used to indicate the at least one resource reservation of the one or more resource reservations.

[0202] Aspect 6: The method according to any one of aspects 1 to 5, wherein the size of the control element is based at least in part on a maximum size.

[0203] Aspect 7: The method according to any one of aspects 1 to 6, wherein the size of the control element is increased based at least in part on a maximum modulation and coding scheme (MCS).

[0204] Aspect 8: The method of aspect 7, wherein the maximum MCS increase is based at least in part on a priority associated with the data.

[0205] Aspect 9: The method according to any one of aspects 7 to 8, wherein the maximum MCS increase is based at least in part on a retransmission count associated with the data.

[0206] Aspect 10: The method according to any one of aspects 7 to 9, wherein the maximum MCS increase is based at least in part on whether resource reservation for the data has been indicated in a previous transmission.

[0207] Aspect 11: The method according to any one of Aspects 1 to 10 further includes: transmitting sidelink control information (SCI) associated with the data, the sidelink control information (SCI) including at least one bit indicating that the control element will be transmitted together with the data.

[0208] Aspect 12: The method according to any one of Aspects 1 to 10 further includes: transmitting sidelink control information (SCI) associated with the data, wherein the sidelink control information (SCI) indicates that the control element will be transmitted together with the data and indicates a broadcast type associated with the control element.

[0209] Aspect 13: The method according to any one of Aspects 1 to 10 further includes: transmitting first-level sidelink control information (SCI-1) associated with the data, the first-level sidelink control information (SCI-1) indicating that the control element will be transmitted together with the data; and transmitting second-level sidelink control information (SCI-2) associated with the data, the second-level sidelink control information (SCI-2) indicating a broadcast type associated with the control element.

[0210] Aspect 14: The method according to any one of aspects 1 to 13 further includes: receiving feedback associated with the data and not associated with the control element from the second UE.

[0211] Aspect 15: The method according to any one of aspects 1 to 13 further includes: receiving feedback associated with the data and the control element from the second UE.

[0212] Aspect 16: The method according to any one of aspects 1 to 15, wherein the one or more resource reservations include a resource reservation associated with a medium access control (MAC) layer of the first UE.

[0213] Aspect 17: A method according to any one of Aspects 1 to 16, wherein the one or more resource reservations include multiple resource reservations, and the control element includes a list selected from the multiple resource reservations based at least in part on: the time associated with the multiple resource reservations; the signal strength or quality associated with indicators of the multiple resource reservations; the distance between the first UE and the one or more additional UEs associated with the multiple resource reservations; or a combination thereof.

[0214] Aspect 18: A method according to Aspect 17, wherein the list selected from the multiple resource reservations is further based at least in part on: whether the first UE is an intended recipient of a signal associated with one or more of the multiple resource reservations; a hop count associated with an indicator of the multiple resource reservations; a periodicity associated with the multiple resource reservations; or a combination thereof.

[0215] Aspect 19: A method according to any one of Aspects 17 to 18, wherein the control element further indicates: whether the first UE intends to receive a signal associated with one or more of the multiple resource reservations; a measurement of the signal strength or quality associated with the multiple resource reservations; a distance associated with the one or more additional UEs; identification information associated with the one or more additional UEs; or a combination thereof.

[0216] Aspect 20: The method according to any one of aspects 1 to 16, wherein the control element comprises a bitmap, the bitmap indicating the at least one resource reservation among the one or more resource reservations.

[0217] Aspect 21: The method of aspect 20, wherein the bitmap is based at least in part on a fixed bit size associated with the bitmap.

[0218] Aspect 22: The method of aspect 21, wherein the fixed bit size is based at least in part on the number of subchannels and the number of time slots.

[0219] Aspect 23: The method of aspect 20, wherein the bitmap is based at least in part on a size associated with the control element.

[0220] Aspect 24: The method of aspect 23, wherein the number of time slots indicated in the bitmap is based at least in part on the size associated with the control element.

[0221] Aspect 25: The method according to any one of aspects 20 to 24, wherein the bitmap is associated with one or more first periodicities, and the control element further comprises at least one additional bitmap associated with one or more second periodicities.

[0222] Aspect 26: The method according to any one of aspects 20 to 24, wherein the bitmap is associated with a first periodicity associated with the one or more resource reservations, the first periodicity being smaller than a second periodicity associated with the one or more resource reservations.

[0223] Aspect 27: The method according to any one of aspects 20 to 26, wherein the bitmap is associated with a first priority associated with the one or more resource reservations, the first priority being higher than a second priority associated with the one or more resource reservations.

[0224] Aspect 28: The method according to any one of aspects 20 to 24, wherein the bitmap is associated with a first periodicity associated with the one or more resource reservations and a second, smaller periodicity associated with the one or more resource reservations.

[0225] Aspect 29: The method according to any one of aspects 20 to 28, wherein the bitmap is associated with a starting time slot, a subframe index, or a combination thereof.

[0226] Aspect 30: The method according to any one of aspects 1 to 29, further comprising: determining whether a bitmap or a list is included in the control element.

[0227] Aspect 31: The method according to aspect 30, wherein the determination is based at least in part on whether the at least one of the one or more resource reservations is periodic or aperiodic.

[0228] Aspect 32: The method according to any one of aspects 30 to 31, wherein the determination is based at least in part on the size of the control element.

[0229] Aspect 33: A method of wireless communication performed by a first user equipment (UE), comprising: receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data; and transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

[0230] Aspect 34: The method of aspect 33, wherein the control element is decoded based at least in part on the first UE being an intended receiver of the data.

[0231] Aspect 35: The method according to any one of Aspects 33 to 34 further includes: receiving sidelink control information (SCI) associated with the data, the sidelink control information (SCI) including at least one bit indicating that the control element will be transmitted together with the data.

[0232] Aspect 36: The method according to any one of Aspects 33 to 34 further includes: receiving sidelink control information (SCI) associated with the data, the sidelink control information (SCI) indicating that the control element will be transmitted together with the data and indicating a broadcast type associated with the control element, wherein the control element is decoded at least in part based on the broadcast type.

[0233] Aspect 37: The method according to any one of Aspects 33 to 34 further includes: receiving first-level sidelink control information (SCI-1) associated with the data, the first-level sidelink control information (SCI-1) indicating that the control element will be transmitted together with the data; and receiving second-level sidelink control information (SCI-2) associated with the data, the second-level sidelink control information (SCI-2) indicating a broadcast type associated with the control element, wherein the control element is decoded at least in part based on the broadcast type.

[0234] Aspect 38: The method according to any one of aspects 33 to 37 further includes: transmitting feedback associated with the data and not associated with the control element to the second UE.

[0235] Aspect 39: The method according to any one of Aspects 33 to 37 further includes: transmitting feedback associated with the data and the control element to the second UE.

[0236] Aspect 40: A method according to any one of aspects 33 to 39, wherein the at least one resource reservation is associated with a signal that the first UE is intended to receive.

[0237] Aspect 41: The method of aspect 40, wherein the resource exclusion is based at least in part on a signal strength of sidelink control information (SCI) associated with the control element.

[0238] Aspect 42: The method according to aspect 41, wherein the resource exclusion is based at least in part on a signal strength delta.

[0239] Aspect 43: The method according to aspect 42, wherein the signal strength increment is based at least in part on a priority associated with the at least one resource reservation.

[0240] Aspect 44: A method according to any one of aspects 33 to 43, wherein the at least one resource reservation is associated with a signal that the second UE is intended to receive.

[0241] Aspect 45: The method according to aspect 44, wherein the resource exclusion is based at least in part on a reported signal strength associated with the at least one resource reservation.

[0242] Aspect 46: The method of aspect 44, wherein the resource exclusion is based at least in part on historical signal strength.

[0243] Aspect 47: The method according to Aspect 44, wherein the resource exclusion is based at least in part on a default value.

[0244] Aspect 48: The method according to aspect 47, wherein the default value is based at least in part on a priority associated with the at least one resource reservation.

[0245] Aspect 49: A method according to any one of aspects 33 to 39, wherein the at least one resource reservation is associated with a signal that neither the first UE nor the second UE is intended to receive.

[0246] Aspect 50: The method according to Aspect 49, wherein the resource exclusion is based at least in part on a default value.

[0247] Aspect 51: The method according to aspect 50, wherein the default value is based at least in part on a priority associated with the at least one resource reservation.

[0248] Aspect 52: A method according to any one of Aspects 33 to 39, wherein the at least one resource reservation is associated with resources that the first UE intends to use for transmission to the second UE, and the resource exclusion includes a full time slot associated with the at least one resource reservation.

[0249] Aspect 53: The method according to aspect 52, wherein the resource exclusion is based at least in part on a reported signal strength associated with the at least one resource reservation satisfying a threshold.

[0250] Aspect 54: 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 one or more of the methods described in Aspects 1 to 32.

[0251] Aspect 55: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 32.

[0252] Aspect 56: An apparatus for wireless communication, comprising at least one means for performing the method according to one or more of aspects 1 to 32.

[0253] Aspect 57: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 32.

[0254] Aspect 58: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 32.

[0255] Aspect 59: 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 one or more of the methods described in Aspects 33 to 53.

[0256] Aspect 60: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 33 to 53.

[0257] Aspect 61: An apparatus for wireless communication, comprising at least one means for performing the method according to one or more of aspects 33 to 53.

[0258] Aspect 62: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 33 to 53.

[0259] Aspect 63: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 33 to 53.

[0260] The foregoing disclosure provides illustration and description, 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 above disclosure or may be acquired from practice of these aspects.

[0261] As used herein, the term "component" is intended to be broadly interpreted as hardware or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions and other examples. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be clear that the system or method described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to specific software codes, because it will be understood by those skilled in the art that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0262] As used herein, "satisfying a threshold" may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0263] Although the combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically listed in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (which includes 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, and any combination with multiples of the same element (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).

[0264] Any element, action or instruction used herein should not be interpreted as critical or necessary unless clearly stated. In addition, as used herein, the article "a" and "an" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items connected to the article "the" mentioned, and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If you only want to refer to an entry, the phrase "only one" or similar terms will be used. Moreover, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element with" A can also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and may be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").

Claims

1. An apparatus for wireless communication at a first user equipment UE, comprising: Memory; and one or more processors coupled to the memory and configured to: receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data; as well as Whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one of the one or more resource reservations is periodic or aperiodic. 2 . The apparatus of claim 1 , wherein the size of the control element is based at least in part on a maximum size.

3. The apparatus of claim 1, wherein the size of the control element is based at least in part on a maximum modulation and coding scheme (MCS) increase.

4. The apparatus of claim 3, wherein the maximum MCS increase is based at least in part on a priority associated with the data, a retransmission count associated with the data, whether resource reservation for the data has been indicated in a previous transmission, or a combination thereof.

5. The apparatus of claim 1 , wherein the one or more processors are further configured to: Sidelink control information SCI associated with the data is transmitted, the sidelink control information SCI comprising at least one bit indicating that the control element is to be transmitted together with the data.

6. The apparatus of claim 1, wherein the one or more processors are further configured to: Sidelink control information SCI associated with the data is transmitted, the sidelink control information SCI indicating that the control element is to be transmitted together with the data and indicating a broadcast type associated with the control element.

7. The apparatus of claim 1, wherein the one or more processors are further configured to: transmitting first level sidelink control information SCI-1 associated with the data, the first level sidelink control information SCI-1 indicating that the control element will be transmitted together with the data; and Second level sidelink control information SCI-2 associated with the data is transmitted, the second level sidelink control information SCI-2 indicating a broadcast type associated with the control element.

8. The apparatus of claim 1 , wherein the one or more resource reservations comprises a plurality of resource reservations, and the control element comprises a list selected from the plurality of resource reservations based at least in part on: times associated with the plurality of resource reservations; a signal strength or quality associated with indicators of the plurality of resource reservations; a distance between the first UE and the one or more additional UEs associated with the plurality of resource reservations; or A combination of them.

9. The apparatus of claim 8, wherein the list selected from the plurality of resource reservations is further based at least in part on: whether the first UE is an intended recipient of a signal associated with one or more resource reservations of the plurality of resource reservations; a hop count associated with the indicator of the plurality of resource reservations; a periodicity associated with the plurality of resource reservations; or A combination of them.

10. The apparatus of claim 8, wherein the control element further indicates: whether the first UE is intended to receive signals associated with one or more resource reservations of the plurality of resource reservations; a measurement of signal strength or quality associated with the plurality of resource reservations; a distance associated with the one or more additional UEs; identification information associated with the one or more additional UEs; or A combination of them.

11. The apparatus of claim 1, wherein the one or more resource reservations comprise a resource reservation associated with a medium access control (MAC) layer of the first UE.

12. The apparatus of claim 1, wherein the bitmap indicates the at least one resource reservation of the one or more resource reservations.

13. The apparatus of claim 12, wherein the bitmap is associated with one or more first periodicities, and the control element further comprises at least one additional bitmap associated with one or more second periodicities.

14. The apparatus of claim 12, wherein the bitmap is associated with a first periodicity associated with the one or more resource reservations and a second, smaller periodicity associated with the one or more resource reservations.

15. The apparatus of claim 1, wherein determining whether to include a bitmap or a list is based at least in part on a size of the control element.

16. An apparatus for wireless communication at a first user equipment UE, comprising: Memory; and one or more processors coupled to the memory and configured to: receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data, wherein whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one resource reservation is periodic or aperiodic; and Transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

17. The apparatus of claim 16, wherein the at least one resource reservation is associated with a signal that the first UE is intended to receive.

18. The apparatus of claim 17, wherein the resource exclusion is based at least in part on a signal strength of sidelink control information (SCI) associated with the control element.

19. The apparatus of claim 18, wherein the resource exclusion is based at least in part on a signal strength delta.

20. The apparatus of claim 19, wherein the signal strength increment is based at least in part on a priority associated with the at least one resource reservation.

21. The apparatus of claim 16, wherein the at least one resource reservation is associated with a signal that the second UE is intended to receive.

22. The apparatus of claim 21, wherein the resource exclusion is based at least in part on a reported signal strength, a historical signal strength, or a default value associated with the at least one resource reservation.

23. The apparatus of claim 16, wherein the at least one resource reservation is associated with a signal that neither the first UE nor the second UE is intended to receive.

24. The apparatus of claim 23, wherein the resource exclusion is based at least in part on a default value.

25. The apparatus of claim 16, wherein the at least one resource reservation is associated with resources that the first UE intends to use for transmission to the second UE, and the resource exclusion comprises a full time slot associated with the at least one resource reservation.

26. The apparatus of claim 25, wherein the resource exclusion is based at least in part on a reported signal strength associated with the at least one resource reservation satisfying a threshold.

27. A method of wireless communication performed by a first user equipment UE, comprising: receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; as well as transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data; as well as Whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one of the one or more resource reservations is periodic or aperiodic.

28. A method of wireless communication performed by a first user equipment UE, comprising: receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data, wherein whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one resource reservation is periodic or aperiodic; and Transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

29. A non-transitory computer readable medium storing an instruction set for wireless communication by a first user equipment (UE), wherein the instruction set, when executed by one or more processors of the first UE, causes the first UE to: receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data; as well as Whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one of the one or more resource reservations is periodic or aperiodic.

30. A non-transitory computer readable medium storing a set of instructions for wireless communication by a first user equipment (UE), wherein the set of instructions, when executed by one or more processors of the first UE, causes the first UE to: receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data, wherein whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one resource reservation is periodic or aperiodic; and Transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

31. An apparatus for wireless communication at a first user equipment UE, comprising: means for receiving one or more indicators corresponding to one or more resource reservations from one or more additional UEs; as well as means for transmitting data to a second UE on a sidelink channel, wherein at least one of the one or more resource reservations is indicated within a control element transmitted with the data; as well as A component determining whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one of the one or more resource reservations is periodic or aperiodic.

32. An apparatus for wireless communication at a first user equipment UE, comprising: receiving data from a second UE and on a sidelink channel, wherein at least one resource reservation is indicated within a control element received with the data, wherein whether to include a bitmap or a list in the control element is determined based at least in part on whether the at least one resource reservation is periodic or aperiodic; and Transmitting on the sidelink channel based at least in part on resource exclusion using the at least one resource reservation.

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