CN114071410A

CN114071410A - Mechanism for partial perceptual enhancement of sidelink resource allocation

Info

Publication number: CN114071410A
Application number: CN202110895534.5A
Authority: CN
Inventors: 陈滔; 郑名渊; 阿梅特·乌穆·尤谷鲁
Original assignee: MediaTek Singapore Pte Ltd
Current assignee: MediaTek Singapore Pte Ltd
Priority date: 2020-08-07
Filing date: 2021-08-05
Publication date: 2022-02-18
Also published as: WO2022027592A1

Abstract

The invention describes a partial perception enhancement method and a device thereof for side link resource allocation in new wireless trolley networking communication. Wherein the user equipment performs one-time sensing and periodic sensing before the transmission operation. The user equipment selects resources based on the results of the one-time perception and the periodic perception. Then, the user equipment performs the transmission operation using the selected resource in the sidelink communication of the internet of vehicles. The partial perception enhancement method and the partial perception enhancement device for allocating the resources of the side link, which are provided by the invention, can reduce the power consumption.

Description

Mechanism for partial perceptual enhancement of sidelink resource allocation

Technical Field

The present invention generally relates to wireless communications. In particular, it relates to a partial sensing (partial sensing) enhancement mechanism for Sidelink (SL) resource allocation (resource allocation).

Background

Unless otherwise indicated, the approaches described in this section are not prior art to the claims set forth below and are not admitted to be prior art by inclusion in this section.

Under 3 rd generation partnership project (3GPP) specifications for 5 th generation (5G) NR, vehicle-to-advertising (V2X) SL communications may be conducted through unicast, multicast, and broadcast communications. However, there are still some problems to be solved in terms of energy saving of resource allocation by partial sensing for SL communication. Therefore, a partial perceptual enhancement solution for SL resource allocation is needed.

Disclosure of Invention

The following summary is illustrative only and is not intended to be in any way limiting. That is, the following summary is provided to introduce concepts, points, benefits and advantages of the novel and non-obvious techniques described herein. Selected embodiments are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.

It is an object of the present invention to propose various schemes, concepts, designs, methods, systems and arrangements related to the partial perceptual enhancement mechanism of SL resource allocation. Various schemes proposed herein may provide a partial-aware enhancement mechanism for SL resource allocation as one solution to particular problems in 5G NR V2X communications.

In one aspect, a method may include performing one-shot sensing and periodic sensing operations prior to a transmission operation. The method may also include selecting a resource based on the results of the one-time perception and the periodic perception. The method may also include performing the transmission operation using the selected resource in SL communications in the V2X network.

In another aspect, a method may include determining whether each of one or more candidate resources is affected by interference caused by periodic and aperiodic transmissions from one or more other UEs in a V2X network. The method may also include selecting a resource from the one or more candidate resources based on the determination. The method may also include performing SL communication using the selected resource.

In yet another aspect, an apparatus may include a transceiver and a processor coupled to the transceiver. The transceiver may be configured to communicate wirelessly in SL communications of a V2X network. The processor may be configured to perform operations comprising: (a) performing, via the transceiver, one-time sensing and periodic sensing prior to the transmitting operation; (b) selecting resources according to the results of the one-time perception and the periodic perception; and (c) performing, via the transceiver, the transmission operation using the selected resource.

It is noted that although the description provided herein is in the context of specific radio access technologies, networks and network topologies such as the fifth generation (5G) and NR V2X, the proposed concepts, schemes and any variants/derivations thereof may be implemented in, for and by any other type of radio access technology, network and network topology, such as, but not limited to, Long-Term Evolution (LTE), LTE-Advanced (LTE-Advanced), LTE-Advanced-release (LTE-Advanced Pro), wireless fidelity (Wi-Fi), and any future-developed networks and technologies. Accordingly, the scope of the invention is not limited to the examples described herein.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is to be understood that the figures are not necessarily to scale, some components shown may be shown to scale beyond the dimensions in actual implementations, in order to clearly illustrate the concepts of the present invention.

FIG. 1 is an exemplary scenario diagram according to an embodiment of the present invention.

FIG. 2 is an exemplary scenario diagram according to an embodiment of the present invention.

Fig. 3 is a block diagram of an exemplary communication environment in accordance with an embodiment of the present invention.

FIG. 4 is a flow diagram of an example process in accordance with an embodiment of the present invention.

FIG. 5 is a flow diagram of an example process in accordance with an embodiment of the present invention.

Detailed Description

Detailed examples and embodiments of the claimed subject matter are disclosed herein. However, it is to be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matter, which can be embodied in various forms. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, the various exemplary embodiments and implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the following description, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

SUMMARY

Embodiments of the present invention relate to various techniques, methods, schemes and/or solutions for partial perceptual enhancement of SL resource allocation in NR V2X communications. According to the invention, a plurality of possible solutions are implemented separately or in combination. That is, although these possible solutions are described separately below, two or more of these possible solutions may also be implemented in combination or in another manner.

Under the proposed scheme for SL resource allocation according to the present invention, the User Equipment (UE) can perform partial sensing for resource allocation and transmission while saving power. Under the proposed scheme, in order to maintain the sensing performance while saving power, the UE may perform aperiodic one-time sensing (which may be referred to herein as "continuous sensing" and "continuous partial sensing") and periodic sensing to detect any resource reservation by other UEs for periodic transmission and aperiodic transmission, thereby avoiding the UEs from reserving resources that other UEs have reserved.

That is, for partial sensing, once the UE identifies one or more candidate resources for receiving packets within a selection window relative to the packet arrival time (e.g., after the packet arrival time), the UE may backtrack to detect respective periodic sensing and aperiodic sensing for each candidate resource to determine whether the candidate resource has been reserved by any other UE, taking into account the periodic nature of partial sensing. Then, based on the detection result, the UE may select and reserve one or more resources that have not been periodically reserved by another UE for receiving or transmitting packets. Under the proposed scheme, in addition to periodic sensing, the UE may additionally perform continuous sensing, i.e., after knowing the packet arrival time, the UE may trace back to perform continuous sensing based on the packet arrival time. The duration of the continuous sensing may be longer than the duration of the periodic sensing to detect any aperiodic traffic/activity/reservation that falls outside the periodic sensing window to avoid interference of the reserved resources with periodic traffic and aperiodic traffic of other UEs.

To detect periodic transmissions, a periodic sensing pattern defined by periodicity, sensing duration, and/or time offset may be used. To detect aperiodic transmissions, aperiodic (or continuous) sensing may be applied. This continuous sensing may occur prior to resource selection or reselection (hereinafter denoted as "(re-) selection") of one or more resources among a plurality of candidate resources having a duration of N time slots. Considering that the Sidelink Control Information (SCI) may indicate reserved resources up to 32 slots from the current time, N may be set to 31 or 32 so that aperiodic resource reservation may be perceived in the past 31 or 32 slots.

Under the proposed scheme, continuous sensing may be performed periodically if there is a periodic data transmission with continuous sensing before each transmission for resource (re) selection. In this case, for such periodic data transmission, the sensing may be considered as a bi-periodic sensing. Furthermore, continuous sensing may be applied before any reserved or (re) selected resources are transmitted or (re) selected. Furthermore, the resource (re) selection window may comprise an overlap time between the periodic sensing mode and the duration of performing the continuous sensing to avoid the impact or interference of any periodic and/or aperiodic transmissions from other UEs). Such partial awareness may be particularly beneficial to vulnerable users (VRUs) to conserve power.

Fig. 1 illustrates an example scenario 100 of a process for a UE to perform partial awareness of resource allocation in accordance with the present invention. In scenario 100, assuming that the UE has periodic traffic for transmission every 1 second, the UE may perform periodic sensing with a duration D1 length of m slots or m milliseconds (e.g., 10 slots or 10 milliseconds) every P1 slots or P1 milliseconds for other UEs to detect the periodic reservation so that any other periodic transmission with periodicity of multiple of P1 may be detected. The P1/D1 mode may be used to sense periodic reservations of other UEs. P1 may be derived from each resource pool's (pre-) configured reservation period. The time offset for the P1/D1 pattern may be derived from the known packet arrival time or resource (re) selection time at the receiving UE. The earliest available time or packet arrival time or resource (re) selection time for a potential transmission may be considered the start time of D1 if it is at time R1. Thus, the P1/D1 pattern may be determined. Advantageously, the partial sensing result can be used for resource (re-) selection in time without any delay impact on the packet transmission. For example, the position of D1 may be { t, t + m } with a period P1, where t is the packet arrival time or the resource (re) selection time. Additionally, some processing time or minimum time offset (MinT) may be added such that the position of D1 may be { t + MinT, t + MinT + m } with period P1.

As shown in fig. 1, the UE may perform another sensing (or continuous sensing) every P2 slots/P2 milliseconds, where a duration D2 of m slots or m milliseconds (e.g., 31 slots or 31 milliseconds) is used for other UEs to detect grant-based (aperiodic) reservations. For example, P2 may be set to 1 second, e.g., the same as the period of the periodic transmission. This sensing may occur before a (re) selection time determined by the UE based on the packet arrival time and the processing time. Thus, any other aperiodic transmission that falls within the selection window can be detected. The P2/D2 mode may be used to sense aperiodic reservations or multiple resource reservations, up to 32 slots as shown by the SCI. In other words, D2 may (pre) configure or specify up to 32 time slots. The perceived end time may be before or at the time of the (re-) selection of the resource. For example, the perceived end time may be the time of resource (re) selection (or packet arrival time) minus the processing time (T _ proc), e.g., T-T _ proc. Thus, the start time perceived by D2 may be derived from the end time and the value of D2, e.g., T-T _ proc-32, where D2 is 32 slots.

Under the proposed scheme, a UE (or VRU) may select resources for Transport Block (TB) (re) transmission during a selection window, which comprises at least: P1/D1 mode, duration with potential aperiodic transmission and/or Packet Delay Budget (PDB) as perceived in D2. Where D2 sensing occurs at t-m, t, the duration of time with potentially aperiodic transmission by sensing in D2 may be t, t + m. Considering some processing time before and/or after T, if D2 perception occurs at { T-D2-T _ proc, T-T _ proc } or { T-D2-MinT, T-MinT }, the duration may be { T + MinT, T + m-MinT } or { T + MinT, T + m-2. MinT } or { T + MinT, T + m-MinT-T _ proc }. Ideally, due to sufficient perceptual information, the overlap duration between the P1/D1 mode and the duration by sensing with potential aperiodic transmissions in D2 can be prioritized for resource (re) selection. Furthermore, the packet delay budget may be taken into account for resource (re-) selection, so that the delay requirements of the packets may be met.

Under the proposed scheme, for the reselection of resources due to re-evaluation or preemption, a one-time perception of the D2 location derived from the reselection time or the time for reserving resources may still be used. For example, as shown in fig. 1, in the case where the resource reserved at time R1 is preempted by time R2, the UE may perform D2 sensing at the time of or an end time before time R2 minus T3. Here, T3 may be the processing time T _ proc. Meanwhile, P1/D1 sensing may be performed anyway. Thus, the reselection of resources may be based on P1/D1 awareness, updated D2 awareness, and packet delay budget.

In another proposed scheme, an indicator may be carried in an SCI sent by one UE to indicate to other UEs that the UE sending the SCI is a partially aware UE that requires power saving, so that the other UEs may send data to the partially aware UE during a sensing duration (e.g., during a periodic sensing duration and/or a continuous sensing duration). Furthermore, under the proposed scheme, a common SL Discontinuous Reception (DRX) mode may be configured for such partially aware UEs. Thus, when any other UE sends data to the partially aware UE, the sending UE may select resources for transmission for the duration of SL DRX _ On (during which the UE is in active and not dormant mode). Further, in the case where SL unicast is established, the sending UE may further follow the sensing mode of the partially-aware UE for data reception based on signaling exchanges between the sending UE and the partially-aware UE (e.g., PC5 interface-radio resource control (PC5-RRC) signaling exchanges). Thus, a partially aware UE may be active (e.g., not in sleep or low power mode) during a (common) SL DRX _ On duration for broadcast/unicast reception (and awareness), its own partially aware duration for unicast reception and awareness (e.g., in a periodic and one-time aware window), and/or its own transmission time. For other durations, the partially aware UE may enter a sleep mode to save power, except for any SL synchronization time when necessary. For example, a partially aware UE may perform sensing only on the physical sidelink control channel-demodulation reference signal (PSCCH-DMRS), such that the partially aware UE may enter a microsleep mode for the remainder of a time slot due to the PSCCH pre-loading in one time slot.

Fig. 2 illustrates an example scenario 200 under a proposed scheme according to the present invention. Scenario 200 may involve two UEs, denoted UE a and UE B in fig. 2. Referring to fig. 2, when the SL DRX mode of UE a may align or overlap (fully or partially overlap) with the partial sensing mode, UE a may perform sensing and data reception during a reception (Rx) duration. Further, UE B may transmit data for the Rx duration of UE a. This Rx mode for UE a may be informed to UE B based on (pre) configuration or PC5-RRC signaling or broadcast information for each resource pool. The partial awareness in the SCI of UE a or the indicator of VRU type UE may help UE B derive or determine the Rx pattern of UE a associated with some (pre-) configurations. Further, UE B may follow a transmission (Tx) pattern to receive transmissions from UE a, thereby reducing UE B complexity and power consumption by avoiding full-time detection of transmissions from UE a.

Illustrative embodiments

Fig. 3 illustrates an example communication environment 300 having an example apparatus 310 and an example apparatus 320, in accordance with an embodiment of the present invention. Each of the devices 310 and 320 may perform various functions to implement schemes, techniques, procedures and methods for partial perceptual enhancement of SL resource allocation in NR V2X communications, including the various above-described schemes described below in terms of procedures.

Each of the devices 310 and 320 may be part of an electronic device, which may be a UE such as a vehicle, a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, each of apparatus 310 and apparatus 320 may be implemented in a vehicle, a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing device such as a tablet computer, laptop computer, or notebook computer. Each of the devices 310 and 320 may also be part of a machine type device, may be an IoT or NB-IoT device such as a fixed or static device, a home device, a wired communication device, or a computing device. For example, each of the devices 310 and 320 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. In some embodiments, each of the devices 310 and 320 may also be implemented in one or more Integrated Circuit (IC) chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, or one or more Complex-Instruction-Set-Computing (CISC) processors. Each of the devices 310 and 320 includes at least some of the components shown in fig. 3, e.g., a processor 312 and a processor 322, respectively. Each of the apparatus 310 and the apparatus 320 may further comprise one or more other components (e.g., an internal power supply, a display device, and/or a user interface device) unrelated to the proposed solution of the present invention, but for simplicity and brevity such other components of the apparatus 310 and the apparatus 320 are not depicted in fig. 3 nor described below.

In many embodiments, at least one of the devices 310 and 320 may be part of an electronic device, which may be a vehicle, a Road Side Unit (RSU), a network node or base station (e.g., eNB, gNB, TRP), a small cell, a router, or a gateway. For example, at least one of the apparatus 310 and the apparatus 320 may be implemented as a vehicle in a V2X or V2X network, an eNodeB of an LTE, LTE-Advanced (LTE-Advanced) or LTE-Advanced-Pro (LTE-Advanced Pro) network, or a gNB of a 5G, NR, IoT, or NB-IoT network. Alternatively, at least one of apparatus 310 and apparatus 320 may be implemented in one or more IC chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, or one or more CISC processors.

In an aspect, each of processor 312 and processor 322 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though the singular term "processor" is used herein to refer to both the processor 312 and the processor 322, each of the processor 312 and the processor 322 may include multiple processors in some embodiments and a single processor in other embodiments in accordance with the present invention. In another aspect, each of processor 312 and processor 322 may be implemented in hardware (and, optionally, firmware) having electronic components that may include, for example, without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors, and/or one or more varactors configured and arranged in accordance with certain objectives of the present disclosure. In other words, in accordance with the various described embodiments of the invention, each of processor 312 and processor 322 may, at least in some embodiments, act as a dedicated machine specifically designed, configured and arranged to perform specific tasks including partial-aware enhancement of SL resource allocation in NR V2X communications in accordance with various embodiments of the invention.

In some embodiments, the device 310 may further comprise a transceiver 316 coupled to the processor 312 as a communication device, and the transceiver 316 is capable of wirelessly transmitting and receiving data. In some embodiments, the device 310 may further include a memory 314 coupled to the processor 312 and accessible to the processor 312 and storing data therein. In some embodiments, the device 320 may also include a transceiver 326 coupled to the processor 322 as a communication device, and the transceiver 326 may be capable of wirelessly transmitting and receiving data. In some embodiments, the device 320 may further include a memory 324 coupled to the processor 322 and accessible to and storing data within the processor 322. Thus, devices 310 and 320 may communicate wirelessly with each other via transceiver 316 and transceiver 326, respectively.

To facilitate a better understanding, the following description of the operation, functionality, and capabilities of each of the apparatus 310 and the apparatus 320 is provided in the context of an NR V2X communication environment, wherein the apparatus 310 is embodied or embodied as a wireless communication apparatus, a communication apparatus, or a first UE, and the apparatus 320 is embodied or embodied as a wireless communication apparatus, a communication apparatus, or a second UE.

Under various proposals relating to partial perceptual enhancement of SL resource allocation in NR V2X communications according to the present invention, processor 312 of device 310 may perform one-time sensing and periodic sensing prior to transmission via transceiver 316. Further, the processor 312 may select resources based on the results of the one-time sensing and the periodic sensing. Further, processor 312 may perform the transmission (e.g., to device 320) using the selected resource in a SL communication of the V2X network via transceiver 316.

In some embodiments, in performing one-time sensing, processor 312 may perform continuous partial sensing to monitor multiple slots for a duration before reserving resources, reselecting resources, or selecting resources to perform a transmission.

In some implementations, the processor 312 may perform certain operations while performing one-time sensing and periodic sensing. For example, processor 312 may identify one or more candidate resources within a selection window after a certain point in time. Further, processor 312 may perform one-time sensing and periodic sensing prior to the point in time based on the temporal location of each of the one or more candidate resources.

In some embodiments, in performing one-time sensing, processor 312 may perform continuous partial sensing to monitor multiple time slots for a duration before the time point.

In some implementations, in selecting the resource, the processor 312 can select the resource based on the results of the aperiodic and periodic sensing.

In some embodiments, the time point may be a packet arrival time.

In some implementations, the selection window may include an overlap duration between a periodic sensing mode associated with periodic sensing and a continuous duration of performing one-time sensing.

Under various proposals relating to partial perceptual enhancement for SL resource allocation in NR V2X communications in accordance with the present invention, processor 322 of apparatus 320 may determine whether each of one or more candidate resources is affected by interference caused by periodic and aperiodic transmissions of one or more other UEs in the V2X network. Further, processor 322 may select a resource from the one or more candidate resources based on the determination. Further, processor 322 may perform Sidelink (SL) communications using the selected resources via transceiver 326.

In some implementations, processor 322 may perform certain operations in determining whether each of the one or more candidate resources is affected by interference. For example, processor 322 may identify one or more candidate resources within a selection window after a certain point in time. Further, processor 322 may perform aperiodic sensing and periodic sensing before the point in time based on the temporal location of each of the one or more candidate resources via transceiver 326.

In some embodiments, in performing aperiodic sensing, processor 322 may perform continuous partial sensing for a duration before the time point to monitor multiple time slots.

In some implementations, in selecting the resource, the processor 322 can select the resource based on the results of the aperiodic sensing and the periodic sensing.

In some embodiments, the time point may be a packet arrival time.

In some implementations, the selection window can include an overlap duration between a periodic sensing mode associated with periodic sensing and a continuous duration of performing aperiodic sensing.

Illustrative procedures

Fig. 4 is an exemplary flow chart 400 shown in accordance with an embodiment of the present invention. Flow 400 may be an exemplary embodiment of the proposed scheme for partial perceptual enhancement of SL resource allocation in NR V2X communications in accordance with the present invention. The process 400 may represent aspects of a feature implementation of the apparatus 310 and the apparatus 320. The process 400 may include one or more of the actions, acts or functions illustrated by one or more of the blocks 410, 420, 430. Although illustrated as discrete blocks, the blocks in flow 400 may be split into more blocks, combined into fewer blocks, or portions thereof, depending on the desired implementation. Further, the blocks of the process 400 may be performed in the order shown in fig. 4, or, alternatively, may be performed in a different order. The process 400 may also be repeated in part or in whole. Device 310, device 320, and/or any suitable wireless communication device, UE, road side unit (RUS), base station, or machine type device may implement flow 400. For purposes of illustration only and not to limit scope, flow 400 is described below in the context of device 310 being a first UE and device 320 being a second UE. The flow 400 may begin at block 410.

At block 410, the flow 400 may include the processor 312 of the device 310 performing one-time sensing and periodic sensing via the transceiver 316 prior to a transmit operation. Flow 400 may proceed from block 410 to block 420.

At block 420, the process 400 may include the processor 312 selecting a resource based on the results of the one-time sensing and the periodic sensing. From block 420, flow 400 may proceed to block 430.

At block 430, process 400 may include processor 312 performing the transfer operation using the selected resource in a SL communication over a V2X network via transceiver 316.

In some embodiments, in performing one-time sensing, the process 400 may include the processor 312 performing continuous partial sensing to monitor a plurality of time slots for a duration of time before reserving resources, reselecting resources, or performing a transmission on the selected resources.

In some embodiments, flow 400 may include that processor 312 may perform certain operations while performing one-time sensing and periodic sensing. For example, flow 400 may include processor 312 identifying one or more candidate resources within a selection window after a point in time. Further, flow 400 may include processor 312 performing one-time sensing and periodic sensing prior to the point in time based on the temporal location of each of the one or more candidate resources.

In some embodiments, in performing one-time sensing, the flow 400 may include the processor 312 performing successive partial sensing to monitor a plurality of time slots for a duration before the time point.

In some embodiments, in selecting the resource, the process 400 may include the processor 312 selecting the resource based on the results of the aperiodic sensing and the periodic sensing.

In some embodiments, the time point may be a packet arrival time.

Fig. 5 is an exemplary flow chart 500 shown in accordance with an embodiment of the present invention. Flow 500 may be an exemplary embodiment of the proposed scheme for partial perceptual enhancement of SL resource allocation in NR V2X communications in accordance with the present invention. The process 500 may represent aspects of a feature implementation of the apparatus 310 and the apparatus 320. The process 500 may include one or more of the actions, or functions illustrated by one or more of the

blocks

510, 520, 530. Although illustrated as discrete blocks, the blocks in flow 500 may be split into more blocks, combined into fewer blocks, or portions thereof, depending on the desired implementation. Further, the blocks of the flow 500 may be performed in the order shown in fig. 5, or alternatively, may be performed in a different order. The process 500 may also be repeated in part or in whole. Device 310, device 320, and/or any suitable wireless communication device, UE, road side unit (RUS), base station, or machine type device may implement flow 500. For purposes of illustration only and not to limit scope, flow 500 is described below in the context of device 310 being a first UE and device 320 being a second UE. The flow 500 may begin at block 510.

At block 510, flow 500 may include the processor 322 of the apparatus 320 determining whether each of the one or more candidate resources is affected by interference caused by periodic and aperiodic transmissions of one or more other UEs in the V2X network. Flow 500 may proceed from block 510 to block 520.

At block 520, the process 500 may include the processor 322 selecting a resource from the one or more candidate resources based on the determination. Flow 500 may proceed from block 520 to block 530.

At block 530, the flow 500 may include the processor 322 performing Sidelink (SL) communication using the selected resource via the transceiver 326.

In some implementations, flow 500 may include processor 322 performing certain operations in determining whether each of one or more candidate resources is affected by interference. For example, flow 500 may include processor 322 identifying one or more candidate resources in a selection window after a certain point in time. Further, flow 500 may include processor 322 performing, via transceiver 326, aperiodic sensing and periodic sensing prior to the point in time based on the temporal location of each of the one or more candidate resources.

In some embodiments, when performing aperiodic sensing, the flow 500 may include the processor 322 performing continuous partial sensing for a duration before the time point to monitor the plurality of time slots.

In some embodiments, in selecting a resource, the process 500 may include the processor 322 selecting the resource based on the results of the aperiodic sensing and the periodic sensing.

In some embodiments, the time point may be a packet arrival time.

Additional description

The subject matter described herein sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected," or "operably coupled," to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably connected," to each other to achieve the desired functionality. Specific examples of operatively couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

Furthermore, to the extent that any plural and/or singular terms are used herein, those having ordinary skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. For clarity, various singular/plural reciprocity may be explicitly set forth herein.

Furthermore, those of ordinary skill in the art will understand that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims), generally mean "open" terms, e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to embodiments containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an," e.g., "a and/or" an "should be interpreted to mean" at least one "or" one or more, "which applies equally to the use of definite articles used to introduce a claim recitation. Furthermore, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations," without other modifiers, means at least two recitations, or two or more recitations. Further, where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having ordinary skill in the art would understand the convention (e.g., "a system having at least one of A, B and C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B and C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having ordinary skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B and C together, etc.). It will also be understood by those of ordinary skill in the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "a or B" will be understood to encompass the possibility of "a" or "B" or "a and B".

From the foregoing, it will be appreciated that various embodiments of the invention have been described herein for purposes of illustration, and that various modifications may be made without deviating from the scope and spirit of the invention. Accordingly, the various embodiments disclosed herein are not meant to be limiting, with the true scope and spirit being determined by the following claims.

Claims

1. A method of partial perceptual enhancement of sidelink resource allocation, comprising:

performing one-time sensing and periodic sensing prior to the transmission operation;

selecting a resource based on the results of the one-time perception and the periodic perception; and

the transmission operation is performed using the selected resource in a sidelink communication of the Internet of vehicles.

2. The method of claim 1, wherein the one-time-aware execution step comprises: the continuous partial sensing is performed to monitor a plurality of time slots for a duration prior to reserving resources, reselecting resources, or transmitting on the selected resources.

3. The method of claim 1, wherein the performing the one-time sensing and the periodic sensing comprises:

identifying one or more candidate resources within a selection window after a certain point in time; and

the one-time sensing and the periodic sensing are performed before the time point based on a temporal location of each of the one or more candidate resources.

4. The method of claim 3, wherein the performing the one-time sensing step comprises: during a time duration before the time point, continuous partial sensing is performed to monitor a plurality of time slots.

5. The method of claim 4, wherein the resources are selected based on the results of the continuous partial sensing and the periodic sensing.

6. The method of claim 3, wherein the time point comprises a packet arrival time.

7. The method of claim 3, wherein the selection window comprises an overlapping duration between a periodic sensing pattern associated with the periodic sensing and a continuous duration for performing the one-time sensing.

8. A method of partial perceptual enhancement of sidelink resource allocation, comprising:

determining whether each of the one or more candidate resources is affected by interference caused by periodic and aperiodic transmissions of one or more other user devices in the Internet of vehicles;

selecting a resource from the one or more candidate resources based on the determination; and

using the selected resource, sidelink communications are performed.

9. The method of claim 8, wherein the step of determining whether each of the one or more candidate resources is affected by interference comprises:

identifying the one or more candidate resources within a selection window after a certain point in time; and

performing aperiodic sensing and periodic sensing before the point in time based on the temporal location of each of the one or more candidate resources.

10. The method of claim 9, wherein the performing the aperiodic sensing comprises: the continuous partial sensing is performed to monitor a plurality of time slots for a duration before the time point.

11. The method of claim 9, wherein the step of selecting the resources comprises: the resource is selected based on the results of the aperiodic sensing and the periodic sensing.

12. The method of claim 9, wherein the time point comprises a packet arrival time.

13. The method of claim 9, wherein the selection window comprises an overlap duration between a periodic sensing pattern associated with the periodic sensing and a continuous duration for performing the aperiodic sensing.

14. An apparatus for partial perceptual enhancement of sidelink resource allocation, comprising:

a transceiver configured to perform wireless communication in a sidelink communication of a vehicle networking; and

a processor coupled to the transceiver and configured to:

performing, via the transceiver, a one-time sensing and a periodic sensing prior to the transmission operation;

the transmission operation is performed via the transceiver using the selected resource.

15. The apparatus of claim 14, wherein the processor performs continuous partial sensing to monitor a plurality of time slots for a duration before transmission on reserved resources, reselected resources, or the selected resources.

16. The apparatus of claim 14, wherein in performing the one-time sensing and the periodic sensing, the processor performs the following operations:

17. The apparatus of claim 16, wherein in performing the one-time sensing, the processor performs successive partial sensing to monitor a plurality of time slots for a duration before the time point.

18. The apparatus of claim 17, wherein in selecting the resource, the processor selects the resource based on results of the continuous partial sensing and the periodic sensing.

19. The apparatus of claim 16, wherein the time point comprises a packet arrival time.

20. The apparatus for partial perception enhancement for sidelink resource allocation as recited in claim 16, wherein the selection window includes an overlap duration between a periodic perception mode associated with the periodic perception and a continuous duration for performing the one-time perception.